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TCO`03 Displays

1. 3 Awritten guarantee that the certificate s registration s are valid The guarantee shall be signed by the responsible person at the applicant company We hereby guarantee that the above mandate is fulfilled Date Company TCO 03 Displays Flat Panel Displays Ver 3 0 31 2005 10 19 A 6 2 A 6 2 1 Environmental hazards Cadmium Cd mercury Hg and hexavalent chromium Cr Background The effects of mercury and cadmium on human health and the natural environment have been very thoroughly documented since the mid 1950s In an EU Directive both mercury and cadmium shall be phased out in electrical and electronic equipment no later than by July 1 2006 The UN ECE Convention on Long range Transboundary Air Pollution CLRTAP was extended in June 1998 by a Heavy Metals Protocol that included cadmium pollutants and products containing levels of mercury Applicability FPDs and the peripheral equipment supplied with them References Please see references 51 57 and 69 Mandate Until July 1 2006 The FPD and peripheral equipment shall not contain cadmium and mercury The requirement applies to components parts and raw materials in all assemblies and sub assemblies of the product The listed parts are found in the TCO 03 Guidelines Exempted are mercury lamps in background lighting systems The limit value for listed parts is 2 ppm for mercury and 5 ppm for cadmium From July 1 2006
2. Colour difference thresholds p 279 Fairchild M D 1995 Considering the surround in device independent color imaging www cis rit edu people faculty fairchild PDFs Bart pdf ISO 13406 2 Ergonomic requirements for work with visual displays based on flat panels Part 2 Ergonomic requirements for flat panel displays International Organisation of Standardisation ISO 9241 7 Ergonomic requirements for office work with visual display terminals VDTs Part 7 Requirements for display with reflections International Organisation of Standardisation TCO 03 Displays Flat Panel Displays Ver 3 0 48 2005 10 19 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 ISO 9241 8 Ergonomic requirements for office work with visual display terminals VDTs Part 8 Requirements for displayed colours International Organisation of Standardisation ASF the Swedish Environment Authority s Provisions and General Recommendations 1998 5 DIN 33402 EC Directive 90 270 EEC EU Directive 90 270 EEC Minimum safety and health requirements for work with display screen equipment ISO 11226 Ergonomics Evaluation of static working postures ISO 13406 2 Ergonomic requirements for work with visual displays based on flat panels Part 2 Ergonomic requirements for flat panel displays International Organisation of Standardisation ISO 9241 3 Ergonomic requirements for off
3. 0 000225 0 01552 which shall be reported as 0 016 The mandate according to clause A 2 6 5 is the following The greyscale steps to be used are 255 225 195 165 135 and 105 and each should be measured in the centre of the screen The maximum difference in either u or v identifies those steps where Au v should be calculated The Au v lt 0 02 Overall uncertainty lt 10 in luminance lt 0 003 units for u and v See B 2 0 7 TCO 03 Displays Flat Panel Displays Ver 3 0 84 2005 10 19 B 4 B 4 0 B 4 0 1 B 4 0 2 Emissions General test conditions for emissions Basic test requirements As described in section B 1 For the test methods for emissions described in this document the following conditions apply e AC mains voltage 230 VAC RMS tolerance lt 1 e AC mains frequency 50 Hz tolerance lt 2 The equipment shall be connected to phase and neutral or other voltage and frequency combination specified by the client Conditions and set up for the test object The tests shall be performed with the full screen size activated The FPD control settings shall be the same as for visual ergonomics This means that 125 cd m for FPDs at an image loading of 80 shall be used for the emission testing of alternating electric and magnetic fields See section B 1 9 for details concerning this setting The FPD shall display a full screen of capital H pattern in dark black letters o
4. Band I 5 Hz to 2 kHz lt 200 nT measured at 30 cm in front of the FPD and at 50 cm around the FPD Band Il 2 kHz to 400 kHz lt 25 nT measured at 50 cm around the FPD The following information shall be submitted A copy of a test report from a test laboratory approved by TCO Development TCO 03 Displays Flat Panel Displays Ver 3 0 25 2005 10 19 A 4 4 Noise FPDs equipped with fans and all in one computers shall fulfil the requirements regarding noise found in the latest version of the labelling document for Desktop computers This document can be found on the TCO Development home page www tcodevelopment com At the time of writing the latest version is TCO 05 Desktop computers 1 0 TCO 03 Displays Flat Panel Displays Ver 3 0 26 2005 10 19 A 5 A 5 1 Electrical safety Electrical safety Background Electrical safety concerns the electrical design of apparatus with respect to its electrical insulation and other arrangements that are intended to prevent accidents resulting from contact with live components and the risk of fire or explosion as a result of electrical flash over due to inadequate or faulty electrical insulation Applicability All FPDs with built in power supplies as well as any separate power supply intended to be used together with the FPD References Please see reference 50 Mandate The FPD shall be certified according to EN IEC 60 950 The following information
5. For FPDs the luminance and consequently the contrast on the display is angular dependent The luminance variations can influence both the bright white and the dark areas of the screen causing a change in contrast This can have a negative effect on the legibility of the screen especially when two or more users are looking at the screen from different viewing angles or from different heights Definition Luminance contrast angular dependence is the capability of the FPD to maintain the same contrast regardless of the direction from which the screen is viewed Luminance contrast angular dependence is expressed as the ratio of the Lmax to Lmin difference over the sum of Lmax and Lmin according to Michaelson s formula It is measured at two different angles Applicability All FPDs Test procedure See B 2 4 2 References Please see reference 2 16 19 23 28 and 33 Mandate For FPDs in landscape mode the luminance contrast angular dependence shall be gt 0 8 at 30 horizontally from the viewing direction The following information shall be submitted A test report from a test laboratory approved by TCO Development TCO 03 Displays Flat Panel Displays Ver 3 0 12 2005 10 19 A 2 5 Front frame reflection characteristics A 2 5 1 Front frame reflectance The requirement has been deleted TCO 03 Displays Flat Panel Displays Ver 3 0 13 2005 10 19 A 2 5 2 Front frame gloss Background Front
6. Overall uncertainty lt 2 gloss units See B 2 0 7 TCO 03 Displays Flat Panel Displays Ver 3 0 74 2005 10 19 B 2 6 B 2 6 1 B 2 6 1 1 Screen colour characteristics Correlated colour temperature CCT variation Preparation of the FPD for testing H 2 All necessary preparations described in B 1 and B 2 0 shall be done A TCO default test image as shown in Figure B 2 6 1 1 shall be used for this measurement W i gt W 2 Front frame Figure B 2 6 1 1 The TCO default test image shall be used for CCT variation The FPD shall be adjusted to the default CCT If no default CCT is given or available the colour temperature presented by the recall function or equivalent function in the OSD On Screen Display shall be used The background FPD colour setting shall be RGB 204 204 204 The measurement position Pc shall be a 40 mm x 40 mm square positioned in the centre of the screen with an RGB setting of 255 255 255 The following rules shall apply Recommended default CCTs are 6500 K or 9300 K but the CCT can be anywhere between 5000K and 10000K The minimum number of pre set CCTs is two The display shall also have a user setting Only CCTs with exactly specified numerical values have to fulfil the requirements CCTs lower than 5000 K shall not be tested TCO 03 Displays Flat Panel Displays Ver 3 0 75 2005 10 19 B 2 6 1 2 B 2 6 1 3 B 2 6 1 4 e If s
7. The FPD and peripheral equipment shall not contain cadmium mercury and hexavalent chromium The requirement applies to components parts and raw materials in all assemblies and sub assemblies of the product Exempted are mercury lamps in background lighting systems Other exemptions are to be found in the TCO 03 Guidelines and are in accordance with EU Directive 2002 95 EC RoHS The limit values for mercury and hexavalent chromium is 0 1 by weight and for cadmium 0 01 by weight in homogeneous materials For batteries please see TCO 03 Guidelines The following information shall be submitted A written guarantee that the mandate above is fulfilled The guarantee shall be signed by the responsible person at the applicant company We hereby guarantee that the above mandate is fulfilled Date Company TCO 03 Displays Flat Panel Displays Ver 3 0 32 2005 10 19 A 6 2 2 Lead Pb Background Lead is a well known hazardous element Lead has a very well documented negative health effect and is subject to restrictions in many countries and for different kind of uses In an EU Directive lead shall be phased out in electrical and electronic equipment no later than by July 1st 2006 UNEP has defined lead as one of the substances that requires regulation on a global level with a binding convention Applicability FPDs and the peripheral equipment supplied with them References Please see references 51 54
8. the left side than the right side and thus Lmax 127 ed m With Lmin 14 cd m the contrast is C 127 14 127 14 0 80 The lowest luminance contrast found shall be reported The result shall be presented to 2 decimal places The mandate according to clause A 2 4 1 is the following The FPD shall have a luminance contrast gt 0 7 measured orthogonally to the screen B 2 4 1 5 Overall uncertainty lt 0 05 in contrast See B 2 0 7 B 2 4 2 Luminance contrast angular dependence B 2 4 2 1 Preparation of the FPD for testing e All necessary preparations described in B 1 and B 2 0 shall be done e Luminance contrast shall be measured at the centre of the screen The measurement position shall consist of an active white RGB 255 255 255 TCO 03 Displays Flat Panel Displays Ver 3 0 71 2005 10 19 B 2 4 2 2 B 2 4 2 3 square with size 40 mm x 40 mm and a non active black square of identical size The two squares shall be positioned on top of each other and centred on the screen as seen in Figure B 2 4 2 1 When the white square is measured the black one is hidden behind the white and vice versa The luminance meter shall be positioned and directed orthogonally to the screen centre point as described in B 2 0 5 W H 2 W 2 Front frame Figure B 2 4 2 1 Measurement position for luminance contrast Equipment Luminance meter Test method Luminance contrast shall be measured at the c
9. 2 1 e Ifno dark or bright areas are identified measure the luminance at each corner position as shown in Figure B 2 3 2 1 e An alternative measurement procedure is to use a scanning spectro radiometer aimed orthogonally to the FPD screen plane to measure the luminance over the entire screen surface A suitable measurement point density is roughly one per 10 cm A one degree measuring angle corresponds to a measuring area with a diameter of 8 73 mm at 500 mm viewing distance which is about 1 75 of the screen diagonal TCO 03 Displays Flat Panel Displays Ver 3 0 61 2005 10 19 B 2 3 2 4 B 2 3 2 5 The conditions for luminance measurement in the corner positions are illustrated in Figure B 2 3 2 1 lt Measuring area edge Figure B 2 3 2 1 Corner positions for the measurement of luminance and colour uniformity A one degree measuring angle corresponds to a measurement area with a 0 0175 x D diameter at a 1 5 x D measuring distance If an instrument with collimating optics is used it shall be aimed at the centre point of the measuring area as shown in the figure Test evaluation The luminance uniformity shall be reported as the ratio between the highest and the lowest measured luminance values The result shall be presented to 2 decimal places The mandate according to clause A 2 3 2 is the following Luminance variation across the active screen Linax Lmin shall be lt 1 5 1 at test luminance settings
10. 3 0 80 2005 10 19 B 2 6 4 B 2 6 4 1 B 2 6 4 2 B 2 6 4 3 Colour uniformity angular dependence Preparation of the FPD for testing All necessary preparations described in B 1 and B 2 0 shall be done The screen background shall be RGB 204 204 204 Chromaticity co ordinates u and v shall be measured at three different positions on the screen as shown in Figure B 2 6 4 1 Each measurement position shall consist of white RGB 255 255 255 squares sized 40 mm x 40 mm The spectro radiometer shall be positioned and directed orthogonally to the screen centre point as described in B 2 0 5 H 2 Wie Front frame Figure B 2 6 4 1 Measurement positions for colour uniformity angular dependence Equipment Spectro radiometer Test method The spectro radiometer shall always be directed towards a measurement position keeping the centre point of its front lens at a fixed position The spectro radiometer shall be turned towards positions Pc Pr and Pr and focused The colour co ordinates at positions Pc Pr and Pr u pci V Pco U PL o V PL o and u prio V prvo respectively shall be recorded Measurements at position PC shall only be used for laboratory reference The screen shall then be rotated 30 degrees around a vertical axis through the screen centre point and the chromaticity co ordinates at positions PL Pr U PL 30 V PL 30 and u pr 30 V pr 30 respectively shall be recorded TCO 03 Di
11. 4 0 2 1 FPD without external power supply unit If the FPD is provided with a fixed holder for the power and signal cables to secure them together then this holder is to be used during the test The external power supply unit if any will contribute to the electromagnetic fields around the FPD Power supply units which are connected via a primary cable to the outlet shall be positioned centrally directly behind the test sample on the turn table with the secondary side towards the FPD see Figure B 4 0 2 2 The primary cable shall extend horizontally on the turn table to a point 0 4 m behind the screen surface The cable shall then from this point run downwards at least 1 m If the power supply can be positioned with different sides up it shall be tested in all positions and the worst case shall be used TCO 03 Displays Flat Panel Displays Ver 3 0 86 2005 10 19 The secondary cable of the power supply shall run the shortest distance from the point of its connection on the FPD to the secondary side of the power supply The unused portion of the secondary cable if any shall be bundled together with the power supply unit The bundle loops shall have a length equal to the longest dimension of the power supply For supply units with dimensions less than 10 cm a 10 cm bundle loop length shall be used For power supply units which are designed to be put directly in the outlet without a primary cable the secondary cable shall run ver
12. 57 and 69 Mandate The FPD and peripheral equipment shall not contain lead The requirement applies to components parts and raw materials in all assemblies and sub assemblies of the product Until July 1 2006 Printed wiring boards electronic components and solder are exempted The limit value for listed parts is 50 ppm From July 1 2006 Exemptions that are valid from July 1 2006 are to be found in TCO 03 Guidelines and are in accordance with EU Directive 2002 95 EC RoHS The limit value for lead is 0 1 by weight in homogeneous materials For batteries please see TCO 03 Guidelines The following information shall be submitted A written guarantee that the mandate above is fulfilled The guarantee shall be signed by the responsible person at the applicant company We hereby guarantee that the above mandate is fulfilled Date Company TCO 03 Displays Flat Panel Displays Ver 3 0 33 2005 10 19 A 6 2 3 Flame retarding agents containing bromine and chlorine Background The general requirements and discussion in respect of bromine and chlorine flame retardants and the phasing out of this group concern about 75 substances Two families within the bromine flame retardants group have been identified in particular as environmentally harmful These are PBB and PBDE Chlorine and bromine flame retardants used are often persistent and can bioaccumulate in living organisms and have been detected in
13. EU Directive 2002 96 EC on waste electrical and electronic equipment WEEE TCO 03 Guidelines available at http www tcodevelopment com Energy Star Program Requirements for Computer Monitors Version 4 0 http www energystar gov VESA FPDM Standard 2 0 VESA Standard Display Specifications and Measurements Procedures Ver 1 0 rev 1 0 Section 8 1 3 VESA Video Signal Standard VSIS Version 1 0 Rev 2 0 December 2002 IEC 62301 Household electrical appliances Measurement of standby power Clause 4 3 1 International Electrotechnical Commission IEC 2005 TCO 03 Displays Flat Panel Displays Ver 3 0 50 2005 10 19 B 1 B 1 1 B 1 2 Test Methods The following definitions test conditions requested specifications from clients and other information apply for test methods described in this document Test results are valid only for the presentation form s and configuration s tested General test conditions Definition of a test object Test objects covered by this document are visual display units of LCD type henceforth called Flat Panel Displays FDPs A test object is defined as the FPD or the FPD plus necessary equipment in order to generate a test image Any accessory such as a graphic card or a character generator that can affect the test result can be considered part of the test object if the client so specifies A test object with all necessary information for its operation shall be delivered to the
14. Overall uncertainty lt 10 in luminance lt 0 1 unit in luminance uniformity See B 2 0 7 TCO 03 Displays Flat Panel Displays Ver 3 0 62 2005 10 19 B 2 3 4 B 2 3 4 1 B 2 3 4 2 B 2 3 4 3 Luminance uniformity angular dependence Preparation for the FPD testing All necessary preparations described in B 1 and B 2 0 shall be done Luminance values shall be measured at five different positions on the screen as shown in Figure B 2 3 4 1 Each measurement position shall consist of white RGB 255 255 255 squares sized 40 mm x 40 mm without line boarders The screen background shall be RGB 204 204 204 The luminance meter shall be positioned and directed orthogonally to the screen centre point as described in B 2 0 5 W lt gt gt lt wio w10 gt lt A ne ao H 2 ii V aa H C BORRA Front frame Figure B 2 3 4 1 Measurement positions for angular dependent luminance uniformity Equipment Luminance meter Test method 1 The luminance meter shall always be directed towards a measurement point and rotated around a fixed vertical axis as described in B 2 0 5 With the FPD in the vertical start position 0 0 no rotation no tilt the luminance meter shall first be turned towards positions P and Pr shown in Figure B 2 3 4 1 and focused The luminances at these positions Lpz ojo and Lpr respectively shall be recorded This measurement shall only be used
15. PIXEL ARRAY CHARACTERISTICS einarorneinars LUMINANCE CHARACTERISTICS Yasoni aas ees e E a eve suuboeecsssy a a LUMINANCE CONTRAST CHARACTERISTICS FRONT FRAME REFLECTION CHARACTERISTICS SCREEN COLOUR CHARACTERISTICS amp ane t case aveenoe ack odtageacecs coved Sei Sear ese E o Cas NU Mw oteo ee GENERAL TEST CONDITIONS FOR EMISSIONS sssssssssececeessssececececeessaeceeececsensasceeececseseseeeeeeeeesensaaeees 85 ALTERNATING ELECTRIC FIELDS 0 cccccesssssecccececsesssuececcceceeseaaeceeececeeseaececececseseqeseeeeeceesenssaeeeeseeeeeneea 92 ALTERNATING MAGNETIC FIELDS ccceesesseceeececeessaeceeececeesssueceeececsensaaseeeececseneqssseeeeeceesenssaeeeeeeseeeneea 95 GENERAL TEST CONDITIONS FOR POWER MEASUREMENTS cccscsesesssccccccccececececececscecesecececssesesesevevecs 97 ENERGY REQUIREMENT AEEA EEEE EEEE EE R EE EEE E E EEE EEE EE EE 100 TCO 03 Displays Flat Panel Displays Ver 3 0 2 2005 10 19 Introduction TCO The Swedish Confederation of Professional Employees has since the end of the 1980s been involved in influencing the development of IT equipment particularly Visual Display Units VDUs in a more user friendly direction Since 1998 this work has been carried out by TCO Development a wholly owned TCO subsidiary company With the collective knowledge and experience of the 1 3 million office workers associated with the confederation TCO Development has developed requirements and tes
16. Stroke width Measuring windows Screen background uring window Figure B 2 4 1 2 Magnification of of the vertical stroke in Figure B 2 4 1 1 a showing a number of sampling windows TCO 03 Displays Flat Panel Displays Ver 3 0 68 2005 10 19 The basic luminance signal scanned from left to right in Figure B 2 4 1 2 could for example be as shown in Figure B 2 4 1 3 Basic luminance signal 150 100 E 9 50 0 0 0 1 0 2 0 mm in scanning direction Figure B 2 4 1 3 Example of a basic luminance signal of a vertical stroke of H B 2 4 1 4 Test evaluation The basic luminance signal received from the micro luminance meter depends on the resolution sampling window size of the sensor and the pixel size of the display It is likely that the sampling window size differs between laboratories depending on photometer brand The luminance contrast C shall be calculated using the formula Lg T Lmin L L nin max with the maximum and minimum luminances determined as described below The photometer produces a basic luminance signal which can be filtered to a resolution of either 1 or 4 minutes of arc These filtered signals shall be used for the calculation of C To find the Lmin proceed as follows The basic luminance signal shall be filtered to correspond to the 1 minute of arc resolution of the human visual system This is equal to a sampling window size of 0 145 mm at 500 mm viewing distance The filtering shall be done by ap
17. TCO 03 Displays version 3 0 compared to version 2 0 can also be found at TCO Development s website www tcodevelopment com Stockholm October 19 2005 TCO Development SE 114 94 Stockholm Sweden Fax 46 0 8 782 92 07 E mail development tco se Jan Rudling Helena Nordin Managing Director Development Manager TCO 03 Displays Flat Panel Displays Ver 3 0 4 2005 10 19 A 1 1 Criteria General information This document contains requirements test methods and references for Flat Panel Displays which are herein referred to as FPD throughout Many of the requirements in this document are the same as those contained in TCO 03 CRT Displays and these requirements have the same numbering in the two documents The contents of the two documents follow the same numbering sequence to separate the technology unique requirements some numbers are omitted from one of the documents In this document the requirements for VDUs of CRT type are omitted namely A 2 2 1 A 2 3 3 A 2 4 2 A 2 7 1 A 2 7 2 and A 4 1 TCO Document Background It is desirable that the purchaser of a product that has been certified in accordance with TCO 03 Displays receives information concerning the quality and capabilities of the product This information is based on the viewpoint from the user s perspective that TCO Development represents Applicability All FPDs References The contract between TCO Development and the applicant
18. The power cable of the test object shall be connected to the phase and the neutral conductors of the mains power supply The FPD does not need to be measured with the phase and neutral interchanged in this case as the magnetic fields are not influenced by such a change Test evaluation Results shall be presented as r m s values of the magnetic flux density expressed in nanotesla nT for the two frequency bands The values in front of the FPD and the maximum value and its position shall be given both for normal and for standby operation if they differ If measured values are less than 200 nT in band I or less than 10 0 nT in band II the result shall be reported as lt 200 nT and lt 10 0 nT respectively The mandate according to clause A 4 3 is the following Band I 5 Hz to 2 kHz lt 200 nT measured at 30 cm in front of the FPD and at 50 cm around the FPD Band II 2 kHz to 400 kHz lt 25 nT measured at 50 cm around the FPD Overall uncertainty The test shall be performed in such a way that the total extended uncertainty in the test result will be less than 10 of the reading 30 nT for band I and 10 of the reading 1 5 nT for band II Note The uncertainties given are worst case limits In many cases it will be possible to obtain better accuracy especially in band II TCO 03 Displays Flat Panel Displays Ver 3 0 96 2005 10 19 B 7 B 7 0 B 7 0 1 B 7 0 1 1 Energy This test method
19. a luminance meter in the visual ergonomics section of this document to measure the luminance of the display Power measurements Several instruments are to be used when carrying out measurements for power as well as the prerequisite luminance and illuminance levels All instruments shall have been recently calibrated and bear a calibration certificate from a certified laboratory The following instrument types are to be used for testing e RMS power meter The RMS power meter shall have a crest factor of at least five e Luminance meter 3 A luminance meter shall have a sufficiently good V sensitivity CIE class A with a combined performance characteristic of lt 5 and integrate luminance over a finite measuring field during a finite time The meter shall be equipped with adjustable optics and always be focused on the measured area The luminance TCO 03 Displays Flat Panel Displays Ver 3 0 98 2005 10 19 B 7 0 5 meter must incorporate a sufficiently long time constant of integration in order to ensure averaging of the pulsation of the light emitted by FPDs The luminance meter measuring field shall be one degree for all measurements except for the micro photometric luminance measurements see below An automated instrument using collimating optics may be used for testing although the measurement area will differ somewhat from the area covered by the luminance meter Requirements for luminance meters are covered by CIE Pu
20. centre point of the FPD screen The centre of the front lens of the luminance meter shall never be closer to the screen centre point than 500 mm Stray light Stray light may cause errors which can negatively affect measurement of luminance and chromaticity coordinates It is therefore necessary to make an evaluation of stray light influence for the different measurement procedures described in this document If it is verified that stray light affect the measurement result it is necessary to take actions to eliminate the source of error Two possible ways to solve the problem are to equip the luminance meter with a well designed screening attachment or to use a black screening sheet at the FPD surface Overall uncertainty The overall uncertainty of the test laboratory shall be calculated for each measurement procedure in this document and presented in the test report TCO 03 Displays Flat Panel Displays Ver 3 0 58 2005 10 19 B 2 1 B 2 1 1 B 2 1 1 1 B 2 1 1 2 B 2 1 1 3 B 2 1 1 4 B 2 1 1 4 Pixel array characteristics Pixel array requirements Preparation of the FPD for testing No specific preparation of the FPD is needed Equipment Calculator and display manual or similar information about the pixel array of the display Test method The maximum pixel array and frequencies of the display are found in the manual or similar information from the manufacturer Test evaluation The FPD shall have a pixel densit
21. company Mandate A TCO Document written in English shall accompany the product describing why these particular requirements have been chosen for the products within the program of TCO 03 Displays and what is expected to be achieved by them The document may be provided as an electronic file The text can be obtained from TCO Development The following information shall be submitted A written guarantee that the above mandate is fulfilled The document shall be signed by the responsible person at the applicant company We hereby guarantee that the above mandate is fulfilled Date Company TCO 03 Displays Flat Panel Displays Ver 3 0 5 2005 10 19 A 2 Visual ergonomics FPD Today computer displays are common work tools for users in different types of professions Good visual ergonomics is a very important aspect of quality that can also have a direct effect on the health and comfort of the user Hence in developing requirements for visual ergonomics the health effects of various parameters have been taken into account as well as other features that characterise good quality displays TCO Development used three main ways to determine the suitable level for each requirement and the test methods for the visual ergonomics part of the TCO labelling program One is based on acceptable visual levels determined by scientific research The second is based on statistics from tests carried out in accordance with TCO IS
22. emit do not influence the measurement Shielding may be added to these units and cables as long as the 1 m clearance is maintained The measuring probe shall be connected to ground Any eventual cables running between the measuring probe and the measuring instrument shall be positioned in such a way that they do not influence the measured value The power cable of the test object shall be connected to the phase and the neutral conductors of the mains power supply If the mains power supply plug permits an TCO 03 Displays Flat Panel Displays Ver 3 0 93 2005 10 19 B 4 2 4 B 4 2 5 interchange of the live and neutral conductors measurements shall be taken with the connection that gives the highest reading in band I Test evaluation Results shall be presented as r m s values of the alternating electric field expressed in volt per meter V m For band I results shall be presented as the measured values at 30 cm and 50 cm for normal and stand by operations if they differ For band II the measured values in front of the FPD and the maximum value at rotation shall be presented for normal and stand by operations if they differ If the measured values are less than 10 0 V m in band I or less than 1 0 V m in band II the result shall be reported as lt 10 0 V m or lt 1 0 V m respectively The mandate according to clause A 4 2 is the following Band I 5 Hz to 2 kHz lt 10 V m measured at 30 cm and at 50 cm in front
23. flora and fauna A series of international elimination activities in respect of chlorine and bromine flame retardants is currently in progress within the EU OECD North Sea Conference OSPAR the Commission for the Protection of the Marine Environment of the North East Atlantic and HELCOM the Baltic Marine Environment Protection Commission Applicability All FPDs and the peripheral equipment supplied with them References Please see references 53 55 59 61 65 66 and 69 Mandate Until 1 July 2006 1 Plastic parts weighing more than 25 grams shall not contain flame retardants that contain bromine or chlorine The requirement applies to plastic parts in all assemblies and sub assemblies of the product The limit value for flame retardants which contain bromine or chlorine is 0 5 percent by weight of the plastic part From 1 July 2006 1 Plastic parts weighing more than 25 grams shall not contain flame retardants that contain bromine or chlorine The requirement applies to plastic parts in all assemblies and sub assemblies of the product 2 The FPD and peripheral equipment shall not contain PBB and PBDE listed in the TCO 03 Guidelines The requirements applies to components parts and raw materials in all assemblies and sub assemblies of the product The limit values for flame retardants is 0 1 by weight in homogeneous materials Exemptions are to be found in the TCO 03 Guidelines The following informa
24. is equivalent to the test method that Energy Star presented in the Program Requirement for Computer Monitors Version 4 0 Differences are explained in notes which are marked by notes in square brackets in the text in this test method An important difference that does not relate to test methodology is that TCO Development requires tests performed at a test laboratory approved by TCO Development but only one single test object In this test method the Energy Star terminology Computer Monitor has in this test method been changed to FPD an abbreviation of Flat Panel Displays General test conditions for Power measurements Basic test requirements As described in section B 1 1 B 1 8 The FPD shall be warmed up for a minimum of 20 minutes Definitions On Mode Active Power The FPD is connected to a power source and produces an image Sleep Mode Low Power The reduced power state that the FPD enters after receiving instructions from a computer or via other functions Off Mode Standby Power The lowest power consumption mode which cannot be switched off by the user and that may persist for an indefinite time when an FPD is connected to the main electricity supply Off mode is the power state when the FPD is connected to a power source produces no images and is waiting to be switched to the On Mode by a direct signal from a user computer Hard Off Mode An operating condition where the product is still plugged into t
25. lighting conditions of the surroundings Definition The luminance at a point on a surface and in a given direction is the quotient of the luminous intensity in the given direction of an infinitesimal element of the surface containing the point under consideration to the orthogonal projected area of the surface element on a plane perpendicular to the given direction The unit of luminance is cd m Applicability All FPDs Test procedure See B 2 3 1 References Please see reference 1 2 18 21 27 31 36 and 44 Mandate The maximum luminance of the FPD shall be gt 150 cd m2 The following information shall be submitted A test report from a test laboratory approved by TCO Development TCO 03 Displays Flat Panel Displays Ver 3 0 8 2005 10 19 A 2 3 2 Luminance uniformity Background Image quality is badly affected by non uniform luminance When poor luminance uniformity is visible it can locally affect the contrast and consequently the legibility of information on the display The areas of deviating luminance can have different sizes and cause varying border sharpness Definition Luminance uniformity is the capacity of the FPD to maintain the same luminance level over the whole active screen area The luminance uniformity is defined as the ratio of maximum to minimum luminance within the fully active screen area Applicability All FPDs Test procedure See B 2 3 2 References Please
26. multiplied by the crest factor rating I peak I rms of the meter must be greater than the peak current reading from the oscilloscope Allow the readings on the power meters to stabilize and then take the true power reading in watts from the power meter Measurements are considered stable if the wattage reading does not vary by more than 1 for the duration of the three minute period Power consumption shall be recorded for On Mode Active Power Sleep Mode Low Power and Off Mode Standby Power Record the test conditions and results for On Mode Active Power Sleep Mode Low Power and Off Mode Standby Power Sleep Mode Low power 1 At the conclusion of the On Mode Active Power test initiate the FPD s Sleep Mode Low Power The method of adjustment shall be documented along with the sequence of events required to reach the Sleep Mode Low Power Power on all test equipment and properly adjust operation range Allow the FPD to remain in Sleep Mode Low Power until stable power readings are measured Measurements are considered stable if the wattage reading does not vary by more than 1 for the duration of the three minute period The input sync signal check cycle shall be ignored when metering the model in Sleep Mode Low Power Record the test conditions and results The measurement time shall be sufficiently long to measure the correct average value i e not peak or instantaneous power If the device has different Sleep Modes tha
27. of the FPD Band II 2 kHz to 400 kHz lt 1 0 V m measured at 50 cm around the FPD and at 30 cm in front of the FPD Overall uncertainty The test shall be performed in such a way that the total extended uncertainty in the test result will be less than 10 of the reading 1 5 V m for band I and 10 of the reading 0 1 V m for band II TCO 03 Displays Flat Panel Displays Ver 3 0 94 2005 10 19 B 4 3 B 4 3 0 B 4 3 1 B 4 3 2 B 4 3 3 Alternating magnetic fields Test laboratory requirements Background magnetic fields in the test laboratory including disturbances transmitted along the power line and internally generated noise in the measuring system shall together not exceed 40 nT in band I and 5 nT in band II Preparation of the FPD for testing All necessary preparations described in B 1 and B 4 0 shall be done Equipment Alternating magnetic field meter in band I and band II Method The true r m s value of the amplitude of the magnetic flux density vector is measured at 48 points on a cylindrical surface around the test object in the two frequency ranges band I and band I The frequency ranges are selected by specified filters in the alternating magnetic field meter The measuring geometry is illustrated in Figure B 4 3 3 1 The measurement points are mathematically defined in the following way 500mm Figure B 4 3 3 1 Measurement geometry for the test object The FPD shall be posit
28. on the approximation of the laws regulations and administrative provisions of the Member States relating to restrictions on the marketing and use of certain dangerous substances and preparations EU Directive 2001 58 EC amending for the second time Directive 91 155 EEC EU Directive 2002 95 EC on the restriction of the use of certain hazardous substances in electrical and electronic equipment TCO 03 Displays Flat Panel Displays Ver 3 0 49 2005 10 19 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 EU Directive 91 155 EEC defining and laying down the detailed arrangements for the system of specific information relating to dangerous preparations in implementation of Article 10 of Directive 88 379 EEC EU Directive 93 793 EEC on the evaluation and control of the risks of existing substances Proposal for an EU Directive 2003 0256 0257 Regulation concerning Registration Evaluation Authorisation and Restriction of Chemials REACH HELCOM article 5 annex I ISO 1043 1 2 3 4 Plastics Symbols and abbreviated terms ISO 11469 Plastics Generic identification and marking of plastics products ISO 14001 Environmental management systems Specification with guidance for use OSPAR Strategy with regard to Hazardous Substances 1998 16 Risk Reduction Monograph no 3 OECD Environment Monograph series no 102 The EU Green Paper Environmental questions concerning PVC KOM 2000 469
29. recycling of FPDs it is the mercury in the lamps that presents one of the greatest environmental problem By setting the requirement that the lamps must be easily detached and dealt with separately the process of material reclamation of the rest of the display is facilitated Applicability All FPDs which contain mercury lamps for background lighting systems Mandate e Connections to be separated during the disassembly of FPD must be easy to take apart in order to not damage the mercury lamps This means that gluing and welding must not be used to bond parts and make removal of the lamps complicated e The total amount of mercury in the lamps shall be declared in the table below The following information shall be submitted Awritten guarantee that the above mandate is fulfilled together with e An adequate description of the method by means of which the lamps shall be removed The description shall be signed by the responsible person at the applicant company e The mercury lamp suppliers the lamp ID code the average maximum and minimum amount of mercury in each lamp the total number of lamps the panel ID code panel technology and the manufacturer shall be declared A written declaration shall be signed by the responsible person at the applicant company Paniel identification COC isc seccisi sss aa edies bbe devs cus cobs vadedecstddeccdaseiedsdschdacebstoeacdess ess Panel techiolo Gy 2ic c seiacepsststschoatinaesces
30. see reference 1 2 16 18 21 22 27 32 33 36 and 44 Mandate Luminance variation across the active screen Lmax Lmin shall be lt 1 5 1 at test luminance settings The following information shall be submitted A test report from a test laboratory approved by TCO Development TCO 03 Displays Flat Panel Displays Ver 3 0 9 2005 10 19 A 2 3 4 Luminance uniformity angular dependence Background The luminance of an FPD is angular dependent i e that screen luminance decreases when the FPD is viewed slightly from the side This can have a negative effect on contrast and can affect the legibility of the screen especially if two or more users are looking at the screen from different viewing angles or from different heights Definition Luminance uniformity angular dependence is the capacity of the FPD to maintain luminance level independently of the viewing direction The angular dependent luminance uniformity is defined as the ratio of maximum luminance to minimum luminance in the specified measurement areas Applicability All FPDs Test procedure See B 2 3 4 References Please see reference 1 16 22 27 31 32 and 33 Mandate 1 For pivot FPDs and for nonpivot FPDs in landscape mode and in the horizontal direction the mean value of the Lmax to Lmin ratios at 30 shall be lt 1 7 2 For nonpivot FPDs in landscape mode and in the vertical direction the value of the Lmax to
31. shall then be repeated for grey steps 195 165 135 and 105 Test evaluation The evaluation task is to find the two grey scale steps that represent the pairs of u and v giving the largest colour difference in Au v by use of the equation Au y J s u s j v V y where indices A and B are the two grey levels found to have the largest colour difference between them The largest difference in Au v value shall be reported The result shall be presented to 3 decimal places TCO 03 Displays Flat Panel Displays Ver 3 0 83 2005 10 19 B 2 6 5 5 The evaluation procedure is exemplified below Make a table of chromaticity values for each grey level Example value Grey level Luminance cd m2 u Maximum 0 005 in this 0 015 in this difference example example The largest u difference Au is 0 005 between 0 190 and 0 185 at grey levels 255 and 165 135 respectively The largest v difference Av is 0 015 between 0 447 and 0 432 at grey levels 255 and 105 respectively Since Av 0 015 is much larger than Au 0 005 the Av value shall be used for the calculation of Au v The corresponding two pairs of u and v to be used for the calculation are thus the values found at grey level 255 and grey level 105 and thus u 255 u a 0 190 and v 255 v a 0 447 for grey level A in this example u 105 U g 0 186 and v i05 v s 0 432 for grey level B in this example Hence Au v 0 000016
32. test laboratory in test ready condition including any required accessories All necessary information about how to operate and adjust the test object shall be provided If the test object is a terminal the client shall provide appropriate technical devices manuals and other information to facilitate the necessary presentation The performance of the test object shall in all aspects be fully in accordance with the performance of the final product The client shall inform the test laboratory if any anti aliasing is used for the FPD The anti aliasing can arbitrarily influence the results making the test laboratories question the results and therefore causing delays Required test object information The client shall specify the name s type designation s and manufacturer for all different parts of the test object The client shall specify if a particular graphic card shall be used for testing see B 1 3 The client shall specify the default correlated colour temperature CCT of the FPD for testing Recommended default CCTs are 9300 K or 6500 K but the CCT can be anywhere between 5000 K and 10000 K If screen colours are given as reddish bluish or any other colour indication instead of a CCT the screen shall still have a CCT between 5000 K and 10000 K The default CCT is the CCT that is set when the user presses the recall function of the display TCO 03 Displays Flat Panel Displays Ver 3 0 51 2005 10 19 on the On Screen Disp
33. C mains frequency 50 Hz tolerance lt 2 e Test room temperature 233 C e Humidity 20 75 RH non condensing or other voltage and frequency combination specified by the client Photometric and spectrometric measurements Several instruments are to be used when carrying out measurements for visual ergonomics All instrument shall be recently calibrated and carry a calibration certificate from a certified testing laboratory The following instrument types are to be used for testing e Gloss meter An instrument for measuring gloss as a function of the directionally selective reflecting properties of a material at angles near to and including the direction giving specular reflection e Luminance meter A luminance meter shall have a sufficiently good Vi sensitivity Requirements for luminance meters are covered by CIE Publication 69 1987 Luminance meters of CIE Class L aboratory with a combined performance characteristic lt 3 shall be used and integrate luminance over a finite measuring field during a finite time The meter shall be equipped with adjustable optics and always be focused on the measured area The luminance meter must incorporate a sufficiently long time constant of integration in order to ensure averaging of the pulsation of the light emitted by FPDs TCO 03 Displays Flat Panel Displays Ver 3 0 57 2005 10 19 B 2 0 5 B 2 0 6 B 2 0 7 The luminance meter measuring field shall be one degree fo
34. EEE E E 26 A 5 ELECTRICAL SAFETY sisssescescasscacacsssevases socvsteessevensasesecsssssessastsoceebeadeaseesedeseshsaceedobsnssavaseesubesssbssabiants 27 ASII TELECTRICAL SAFE T Voss enoe a EE E RO EA E E ER AR E E A EAE 27 A 6 ECOLOGY EE AT O 28 AsO 0 PRODUCT DESCRIPTION sers tira egenin aee ee na N Ri ERE EREE E ERRE Rai RE ERES 29 A 6 1 ENVIRONMENTAL MANAGEMENT SYSTEM CERTIFICATION s ssssseseseseserertrestrertrtetetreresererereereeeereeene 31 A 6 2 ENVIRONMENTAL HAZARDS oari one ea EAEE S EEA A E EAEOI obestush Ea E R AN 32 A 6 2 1 Cadmium Cd mercury Hg and hexavalent chromium CT ceccescsssesvessessesvessessessessesseeees 32 A 6 2 2 Lead PD ofan cctscis Secih ion cece ite Sia ol Note e a Anat tdeet ans haat aaae De dou chads auatvest West sit EES S 33 A 6 2 3 Flame retarding agents containing bromine and chlorine o on 34 A 6 2 4 Information regarding flame retarding agents sccscesccsecsesscsseeseeseeseeecneeeecuseeeceaeeaeesecseeeenaes 36 A 6 2 5 Plastics with chlorine and bromine as part of the POLYM n se 37 A 6 3 PREPARATION FOR RECYCLING ocroti ienaat iaa EEN a EEA E EE AE osm ata ase 38 A 6 3 1 Material Coding Of Plastics scececsccesescsesecssesecsseescusesecseesesseeseeseesecseesecueesecsaeeaeeaeeaeesecneeseenaes 38 A 6 3 2 Design for recycling Mercury lamps c cccsccesceesseesseseceeecesecesecusecuaecasecseeeaeesseesseeeseenseeseenaes 39 A 6 3 3 Variety Of PIGSTICS oricine sets sesbipas cede ay
35. Flame Flame Plastic part name i model retardant retardant label name type CAS code Date Company TCO 03 Displays Flat Panel Displays Ver 3 0 36 2005 10 19 A 6 2 5 Plastics with chlorine and bromine as part of the polymer Background PVC is by far the most common halogen containing plastic There are however other plastics that contain chlorine or bromine in the plastic itself As the requirement concerning permissible flame retardants tightens the risk increases that halogenated plastics will become more common TCO Development sees a future environmental risk with such development PVC is a much debated plastic that can pose environmental problems in most parts of its life cycle The magnitude of the environmental problems related with PVC differs depending on the environmental status of a particular manufacturing facility and the uses of additives At present there are very limited possibilities to distinguish between harmful and less harmful production facilities for PVC Applicability All FPDs and the peripheral equipment supplied with them References Please see references 57 and 67 Mandate Plastic parts that weigh more than 25 grams shall not contain chlorine or bromine as a part of the polymer Laminates for printed wiring boards PWBs and all kinds of cable insulation are exempted The following information shall be submitted A written guarantee that the above mandate is fulfilled The guarantee shall
36. Lmin ratio at 15 shall be lt 1 7 3 For pivot FPDs in portrait mode in the horizontal direction the largest ratio value of Lmax to Lmin at 15 shall be lt 1 7 The following information shall be submitted A test report from a test laboratory approved by TCO Development TCO 03 Displays Flat Panel Displays Ver 3 0 10 2005 10 19 A 2 4 A 2 4 1 Luminance contrast characteristics Luminance contrast characters Background The degree of contrast is important for legibility and for distinguishing one character from another Definition Luminance contrast characters is the capacity of the FDP to maintain a high luminance difference between a bright background and dark characters or parts of characters over the whole active area Luminance contrast characters is expressed as the ratio of the Lmax to Lmin difference over the sum of Lmax and Lmin according to Michaelson s formula It is measured at two different angles Applicability All FDPs Test procedure See B 2 4 1 References Please see reference 2 16 19 22 23 27 32 and 44 Mandate The FPD shall have a luminance contrast gt 0 7 measured orthogonally to the screen The following information shall be submitted A test report from a test laboratory approved by TCO Development TCO 03 Displays Flat Panel Displays Ver 3 0 11 2005 10 19 A 2 4 2 Luminance contrast angular dependence Background
37. O MPR II regulations and from special VDU tests The third way is based on manufacturers knowledge and experience which is invaluable Manufacturers consumer groups and other organisations with interests in the visual ergonomics field have contributed with a great deal of valuable information and ideas through discussions The expression Flat Panel Display FPD in this document primarily means Visual Display Units VDUs of LCD type However the measuring procedures can in many cases be applied to other types of flat panels with fixed positions of the pixels VDUs of OLED type may need other requirements and test methods Flat panels of CRT type should be tested according to TCO 03 CRT Displays Plans for updating We are looking into the possibility to extend the gloss requirement to be valid also for the active surface of the panel but at the time of writing we have not yet been able to establish the levels In the future we aim to set a level for gloss of the active surface of the panel TCO 03 Displays Flat Panel Displays Ver 3 0 6 2005 10 19 A 2 1 A 2 1 1 Pixel array characteristics Pixel array requirements Background Image quality is negatively affected by a low fill factor visible jaggies poor rendering of details etc All of these parameters are related to the pixel array of the display For pixel array characteristics it is important to take the viewing distance into account Definition A pixel
38. Poor colour rendering can lead to poor legibility and misinterpretation The u and v chromaticity co ordinates of the primary colours red R green G and blue B of the screen shall aim at values given in international IEC EBU and ITU standards The u and v chromaticity co ordinates of the primary colours R G and B form a triangle in the CIE 1976 uniform chromaticity scale diagram The larger the area of the triangle the wider the range of colours the screen is capable of presenting Definition The colour characteristics of an FPD are based on the visual appearance of the FPD primary colour stimuli the R G B stimuli Applicability All FPD s Test procedure See B 2 6 3 References Please see reference 3 4 8 15 17 25 26 28 30 34 36 and 38 Mandate The minimum colour triangle shall have the following coordinates Red Green Blue Co ordinate u v u v u v Requirement 2 0 411 2 0 503 lt 0 140 2 0 548 2 0 150 lt 0 224 The following information shall be submitted A test report from a test laboratory approved by TCO Development TCO 03 Displays Flat Panel Displays Ver 3 0 17 2005 10 19 A 2 6 4 Colour uniformity angular dependence Background The human visual system is very sensitive to changes in colour hue in white and grey areas Since the white or grey colour hues are the background on which most colours are judged the white or grey areas are the r
39. TCO 03 Displays Flat Panel Displays Ver 3 0 DISPLAYS www tcodevelopment com 19 October 2005 Contents TCO 03 FPD ENTTRODUE TION EE AA doseacseas easton TERI EAE 3 AL CRITERIA ES TEE E A A E TE T 5 A 1 GENERAL INFORMATION cscsscssssscsssssssscssscesscsssscsssnsssssnessessessesssssnsssssnessessessessssosssssnessesnesses 5 AJT TCO DOCUMENT een eE E E E E E E E E EE 5 A 2 VISUAL ERGONOMICS FPD 0 sccsccscsscncssccessccsssscescsssnssessnescessessescsssessscsssnssessnesssssessossessosseseoes 6 Agl J PIXEL ARRAY CHARACTERISTICS ogeu iiie a e a a S E T A 2 1 1 Pixel array reguirementS i 3 iss scsissions ubcssceseenacedatecsendeaeudeudedsess ebaataaeigeaseaasdsiena eap Eae aa 7 Aida y LUMINANCE CHARACTERISTICS asiaani aa ea ae E e a a EE a A E A E E 8 A 2 3 1 VEN BAA A EEEE E E E EE amp A 2 3 2 Luminance uniformity es enean E a E RE aE E a eaS Daen OE ES E A S 9 A 2 3 4 Luminance uniformity angular dependence ccccccccccesscesscesecesecesecusecseeesseeseesseesseeseenseenaes 10 A 2 4 LUMINANCE CONTRAST CHARACTERIS TIOS cicin ereere retni r ete REEE ESEE ANTERE NESEN EEEE E OSEE EENE EATS 11 A 2 4 1 Luminance contrast characters cccecsccescceesseceseceensecesceeesceceeeesacecseeeeaeecseeeeaeeceeeeeaaeceeeeeeaaes ll A 2 4 2 Luminance contrast angular dependence ccsccssesecssecssesecnseeeceseescesecseesecueseecesseseesesaeeeeenaes 12 A 2 5 FRONT FRAME REFLECTION CHARACTERISTICS c ccc
40. V m Alternating magnetic field meter in band I and band Il The magnetic field shall be measured with two coil systems one covering band I and the other band II Each coil system shall consist of three mutually TCO 03 Displays Flat Panel Displays Ver 3 0 89 2005 10 19 perpendicular concentric circular coils each with an area of 0 01 m The coils may depart from a circular shape where they intersect The minimum inner diameter shall be 110 mm and the maximum outer diameter 116 mm The measuring coils shall not be sensitive to electric fields The resonance frequency of each coil appropriately connected to cables and amplifiers shall be greater than 12 kHz for band I and greater than 2 5 MHz for band II The resonances shall be suppressed by resistive loading of each coil Amplifiers and integrating networks to make the output voltage proportional to the magnetic flux density and independent of frequency shall follow each coil The specifications in respect of the frequency response are given in the calibration procedure High pass and low pass filters shall filter the signals from the coil systems The specifications of the filters are given in Table B 4 0 3 1 After amplification integration and filtering the signals from the three coils in each coil set shall be used as input values for calculating the r m s values of the amplitudes of the magnetic flux density vectors in both frequency bands It is permissible to calculate the
41. aa seaccosscn rasei EE ao Er eE aE eE E AERE SEN ESS 4 A 6 3 4 Metallization of plastic housing and metal Parts ccccccsccescsseesseeseeseeeeeeseeeeecesecnsecnseonaeenseens 42 A 6 3 5 Recycling information fOr CUSTOMETS cccsscceseceeseceeceensecesncecsseceeaeecsaeeeeaeecsaeeeeaeecaeceeaeecneeeeaaes 43 TCO 03 Displays Flat Panel Displays Ver 3 0 1 2005 10 19 A 7 A 7 1 ENERGY GONSUMPTIONS 66235 sccsenie a sdue dese ew negeou lactate Saas a aa a a a 45 B 1 B 1 1 B 1 2 B 1 3 B 1 4 B 1 5 B 1 6 B 1 7 B 1 8 B 1 9 B 1 10 B 2 B 2 0 B 2 1 B 2 3 B 2 4 B 2 5 B 2 6 B 4 B 4 0 B 4 2 B 4 3 B 7 B 7 0 B 7 1 GENERAL TEST CONDITIONG scccscssssssscssssscsssssssssssssssssenevsessesssscsscsesscsssessessssevsesessersssesserees OL DEFINITION OF A TEST OBJECT 0 ccceccccceessseeeeeees REQUIRED TEST OBJECT INFORMATION GRAPHIC CARD VIDEO ADAPTER sce dc cSc0sc cesses ibs ioe th e ee os E a eE E beens have oemeelt CONDITIONS FOR THE EQUIPMENT UNDER TEST FPD ALIGNMENT FOR TESTING napona a geen can eeec eevee a A E e Ea au e E T INSTRUMENTS USED FOR TESTING SETTINGS OF THE ERD adrenn n a See a A E Ga Cason cae Ga a E Ov e TA TEST IM GE TEST CHARAGTER norrena RRR E MAA ee hs EA MAKING AN 80 IMAGE LOADING TEST IMAGE TEST REPOR De A ea a Se a E bo Puss E E a E E be a e GENERAL TEST CONDITIONS FOR VISUAL ERGONOMICS cccccccccecessesseceeccecsessssececececsesesseaeecesesenerseaeees 57
42. all three coils TCO 03 Displays Flat Panel Displays Ver 3 0 91 2005 10 19 B 4 2 B 4 2 0 B 4 2 1 B 4 2 2 B 4 2 3 Alternating electric fields Test laboratory requirements Background electric field strengths in the test laboratory including disturbances transmitted by power lines and internally generated noise in the measuring system shall together not exceed 2 0 V m in band I and 0 20 V m in band II The mains voltage to the FPD under test shall be within 3 of its nominal value Preparation of the FPD for testing All necessary preparations described in B 1 and B 4 0 shall be done An external optical filter may not be used in order to comply with the mandatory requirement Equipment Alternating electric field meter Test Method The true r m s value of the amplitude of the electric field strength at the surface of the measuring probe is measured in front of the test object in band I and in four azimuths in band II The frequency ranges are selected by means of filters in the measuring equipment The FPD shall be positioned such that the tangential plane to the centre centre point of the screen surface is at a right angle to the horizontal plane The distance between the centre centre points of the screen surface and the back of the FPD including an eventual part of a stand holder along the normal to this tangential plane is called L see Figure B 4 2 3 1 The origin of the cylindrical co ordinate sys
43. also being followed continuously In future updates of the labelling documents requirements on mercury free lamps in FPDs maximum levels of chemical emissions from various plastics and chemical substances that are included in FPDs might be added TCO Development is also investigating the possibility of shifting towards a principle whereby requirements are defined for environmental characteristics instead of the current system of prohibiting various chemical substances or groups of substances It is important to facilitate recycling but requirements regarding recycling are also quite complex to handle TCO Development will continue to build knowledge of how to set and achieve stricter requirements in this field TCO 03 Displays Flat Panel Displays Ver 3 0 28 2005 10 19 A 6 0 Product description Background The aim of this front page is to provide a brief description of the product that is to be reviewed for compliance with the ecological requirements of Section A 6 Applicability All FPDs and the peripherals supplied with them Mandate A product declaration shall be provided for the FPD The following information shall be submitted 1 The following table completed where applicable 2 A copy of the marking plate for the display The information submitted shall be signed by the responsible person at the applicant company Display Manufacturer Brand name Type Model name Screen size in in
44. and its effects on image quality SPIE Optical Engineering Press p 179 181 Kokoschka S 1986 Visibility aspects of VDUs in terms of contrast and luminance Behaviour and information technology vol 5 No 4 pp 309 333 Schenkman B and Kjelldahl L 1999 Preferred colour temperature on a colour screen Displays 20 73 81 Roberts A Eng B 1995 A method for the calculation of tolerances for display primary chromaticity coordinates Research and development Department Technical Resources The British Broadcasting Corporation www srgb com Wyszecki G Stiles W S 1982 Color Science Concepts and methods quantitative data and formula Second Edition John Wiley amp Sons Inc Chapter 7 Visual thresholds pp 567 569 Wyszecki G Stiles W S 1982 Color Science Concepts and methods quantitative data and formula Second Edition John Wiley amp Sons Inc Chapter 7 Visual thresholds pp 574 575 Le Grand Y 1957 Light colour and vision Chapman and Hall pp 278 279 Le Grand Y 1957 Light colour and vision Chapman and Hall Le Grand Y 1957 Light colour and vision Chapman and Hall p 119 Le Grand Y 1957 Light colour and vision Chapman and Hall Chapter 11 Luminance difference thresholds p 261 Le Grand Y 1957 Light colour and vision Chapman and Hall Chapter 11 Luminance difference thresholds Le Grand Y 1957 Light colour and vision Chapman and Hall Chapter 12
45. be signed by the responsible person at the applicant company We hereby guarantee that the above mandate is fulfilled Date Company TCO 03 Displays Flat Panel Displays Ver 3 0 37 2005 10 19 A 6 3 A 6 3 1 Preparation for recycling Material coding of plastics Background Within the EU the problem of electronic waste has been a major issue for many years The EU has now brought out a set of rules for dealing with environmental questions related to electronic items in waste There are large volumes of FPDs all over the world Recycling and the handling of harmful substances is therefore an important environmental area Applicability All FPDs and the peripheral equipment supplied with them References Please see references 57 62 63 and 68 Mandate Plastic parts that weigh more than 25 grams shall be material coded in accordance with ISO 11469 and ISO 1043 1 2 3 4 Such parts shall be listed in the table at Section A 6 2 4 Exempted are laminates for printed wiring boards PWBs The following information shall be submitted A written guarantee that the above mandate is fulfilled The guarantee shall be signed by the responsible person at the applicant company We hereby guarantee that the above mandate is fulfilled Date Company TCO 03 Displays Flat Panel Displays Ver 3 0 38 2005 10 19 A 6 3 2 Design for recycling Mercury lamps Background During the dismantling and
46. blication 69 1987 If the luminance measurement for instrument design reasons is done at a shorter distance than 1 5 x diagonal the laboratory shall verify that the results are equal to those done at 1 5 x diagonal Measurement stability Measurements shall be taken after a stable wattage value has been obtained over a three minute period Values are considered to be stable when variations in wattage values are 1 or less for the duration of the three minute period TCO 03 Displays Flat Panel Displays Ver 3 0 99 2005 10 19 B 7 1 B 7 1 1 B 7 1 2 B 7 1 3 Energy requirement Preparation of the FPD for testing The preparations include generation of a luminance test pattern and procedures e For FPDs a test pattern VESA FPDM Standard 2 0 A112 2F SETO1K shall be displayed that provides eight shades of grey from full blank 0 volt to full white 0 7 volt Input signal levels shall conform to VESA Video Signal Standard VSIS Version 1 0 Rev 2 0 December 2002 With the brightness and contrast control at maximum the technician shall check that at a minimum the white and near grey levels can be distinguished If white and near white grey levels cannot be distinguished then contrast shall be adjusted until they can be distinguished The technician shall next display a test pattern VESA FPDM Standard 2 0 A112 2H L80 that provides a full white 0 7 volt box that occupies 80 of the image The technician shall then adju
47. ch Panels Manufacturer Type Model name Brand name Technology Peripherals Type of product Manufacturer Brand name Type Model name TCO 03 Displays Flat Panel Displays Ver 3 0 29 2005 10 19 We hereby guarantee that the above mandate is fulfilled Signature Name and title in block capitals Date Company TCO 03 Displays Flat Panel Displays Ver 3 0 30 2005 10 19 A 6 1 Environmental management system certification Background A certified environmental management system is proof that the company shows concern for the environment and has chosen to work in a systematic way with constant improvement of the environmental performance of the company and its products in focus A certified environmental management system includes external independent revisions Definitions Manufacturing plant is the site where the final assembly of the product is taking place Applicability The company or companies which manufacture the FPD References Please see references 52 and 64 Mandate Each manufacturing plant must be certified in accordance with ISO 14001 or EMAS registered If the product is manufactured by a third party it is this company that shall be certified or registered The following information shall be submitted 1 Adocument showing the names and addresses of the manufacturing plants 2 Copies of the ISO 14001 certificates or EMAS registrations
48. creen colours are given not as CCTs but as reddish bluish or any other colour indication these settings shall be tested and the u and v co ordinates of the CIE 1976 uniform chromaticity scale diagram shall be reported in the test protocol Equipment Spectro radiometer capable of presenting CIE u and v chromaticity co ordinates with at least three decimals Test method The spectral properties at the centre of the test square shall be measured with a spectro radiometer The spectral data shall then be processed which is normally done directly in the instrument microprocessor to give chromaticity co ordinates In this case the CIE co ordinates u and v are needed for the test evaluation and are often presented directly by the spectro radiometer used If the client has stated more than two pre set CCTs preparation and testing shall be repeated for the additional CCTs Test evaluation The measured u m and v m values of the screen for the pre set CCT and the CIE reference chromaticity co ordinates u ccr and v ccr values for the reported CCT shall be used to calculate the colour difference as follows Au y Cee U p y Cee Wy y This calculation shall be done for all tested pre set CCTs Most FPDs are delivered with two or more pre set CCTs for a white screen These pre set CCTs are often one or more of the following 9300 K 7500 K 6500 K 5500 K and 5000 K The CIE 1976 u and v reference chromaticity co ordinates for the five ment
49. cscsscssssesecsessesecsessesecseesesecsessesecsesesessessnessesaeneeeens 13 A 2 5 1 Eront frame reflectant es dneni aes A AE A E A ai 13 A 2 5 2 Front fram olos Snae E E AS AA ENARE A E EE E E RA 14 A 2 6 SCREEN COLOUR CHARACTERISTICS c ccsccssssssssesscsessesecsensesecsensesecsenseseceesesecsensenscsesenecsenssneseeneeneseens 15 A 2 6 1 Correlated colour temperature CCT VAvidtion csccccssccessceesseceeneeensecentecnseceeeeeceseeeeaeeenaeeeses 1S A 2 6 2 Colour UNI ONIN IE ias ente eis cits ce Shs aes sag acing E EE EE EEEE eee haces ede vied eee tages 16 A 2 6 3 RGB setting S inenen ae tule lsdh ae sacha E Pause ts ath eae aus Mee ing dha phacedecoueils AE E AE EE Ra S 17 A 2 6 4 Colour uniformity angular dependence c sccseesecsceseeecsesseeseeseesecssesecnceeeceaeeseeseeaeesesseeeenaes 18 A 2 6 5 Colour greyscale Linearity ironien ea a E a EEA EESE EE EEE E E isa 19 A3 WORK LOAD ERGONOMICS cccsssscsssssscssssscescsssescessnesecsnescesssssnscsssnessssnessessessssesssessssnessesooss 20 AGIA VERTICAL TIL Tit 5 cslovsatecdusateesersateriueiseasieesohoadee a E e e E e a 21 Aa SVERTICAEHRIGATADIUSTMEN T anae e I A D E E 22 A 4 EMISSIONS asad sccisstsssescscs suas cescsscasiaccanescavavescacesasscssuceasecseacssseneenssesosscausendespsossacseasesdenisecacsensosavendensecesens 23 A A4 2 ALTERNATING ELECTRIC FIELDS 03 a EAE E E 24 AEI ALTERNATING MAGNETIC FIELDS aiioe a E A ES 25 PBA NOISE miin aneno an a a a a E E a E E a
50. deatsepiaceniassancuean adeeb E E RE Nomb rof Wanips Sessa Se nae el cc ae E EEEE K E RA Mercury lamp Lamp ID code Average mg Max mg Min mg supplier Hg lamp Hg lamp Hg lamp TCO 03 Displays Flat Panel Displays Ver 3 0 39 2005 10 19 We hereby guarantee that the above mandate is fulfilled Signature Name and title in block capitals Date Company TCO 03 Displays Flat Panel Displays Ver 3 0 40 2005 10 19 A 6 3 3 Variety of plastics Background Recycling of used electronic products is an important environmental issue Material recycling and reuse are the best options from an environmental point of view Therefore TCO Development presents requirements that facilitate material recycling Applicability All FPDs and the peripheral equipment supplied with them Definitions Types of plastic materials using the abbreviation terms symbols and concepts for plastics in ISO 1043 Part 1 2 3 and 4 are e Basic polymers e Mixtures of polymers e Basic polymers with flame retardants e Mixtures of polymers with flame retardants Product units are e Display case and foot e LCD panel in FPDs e Peripherals References Please see reference 62 Mandate No more than two different types of plastic materials are accepted for parts weighing more than 100 grams in each product unit The light guide in FPD panels are exempted The following information shall be submitted A
51. e more then than relevant We are also convinced that the amount of fields that surrounds us in the office environment do not contribute to the well fare being of the office workers TCO 03 Displays Flat Panel Displays Ver 3 0 23 2005 10 19 A 4 2 Alternating electric fields Background Electrical alternating fields are created between objects that have different levels of electrical potential which change over time When the potential changes in a periodic manner an electrical alternating field is set up with a field strength and a frequency A display contains many sources of electrical alternating fields The field characteristics depend on the actual electrical potential difference and the distance from the FPD Display users are often concerned about a possible health risk arising from electrical alternating fields generated by equipment Quite a large number of users also report various kinds of symptom that cannot completely be attributed to the influence of other factors in the work environment or to medical reasons The mandatory requirements are based on the ambition to reduce the electrical alternating fields to such a low level as not to burden the work environment with unnecessary factors The mandatory requirements shall not be regarded as hygienic limit values Applicability All FPDs Test procedure See B 4 2 References Mandate Band I 5 Hz to 2 kHz lt 10 V m measured at 30 cm and at 50 cm in front o
52. ee that the FPD meets the above mandate The guarantee shall be signed by the responsible person at the applicant company We hereby guarantee that the above mandate is fulfilled Date Company TCO 03 Displays Flat Panel Displays Ver 3 0 21 2005 10 19 A 3 2 Vertical height adjustment Background It is important to position the display so that it can be viewed within a line of sight angle between horizontal and 60 degrees below the horizontal The height adjustment system should allow positioning of the top of the display at or slightly below the seated eye height of the average male or average female range of operators when the FPD is placed on a standard height 750 mm table A height adjustment function especially the lowering of the FPD down towards the work top surface is beneficial for the possibility of work posture flexibility to be able to get the best visual ergonomics of the FPD Applicability All FPDs References Please see references 39 49 Definition Work top surface the surface where the FPD is positioned Mandate The FPD shall meet one of these three mandates 1 The FPD shall have a height adjustment function as a standard feature 2 The FPD shall have a mounting interface applicable to the VESA mounting interface standard 3 The manufacturer or a third party shall provide the accessories necessary to achieve the height adjustment function Information of where the accessories can be
53. eference colours on the screen Angular dependent colour variations on an active white or grey screen could be disturbing and affect legibility colour rendering and colour differentiation Definition The colour uniformity angular dependence of an FPD is the capability of the screen to maintain constant colour over the screen surface depending of the direction from which the screen is viewed Applicability All FPDs Test procedure See B 2 6 4 References Please see reference 2 8 14 15 23 25 29 and 35 Mandate For an FPD in landscape mode the Au v between areas on the left side and the right side of the screen when it is positioned at 30 and at 30 horizontally to the screen normal shall be lt 0 025 The following information shall be submitted A test report from a test laboratory approved by TCO Development TCO 03 Displays Flat Panel Displays Ver 3 0 18 2005 10 19 A 2 6 5 Colour greyscale linearity Background A well tuned colour greyscale is the basis for good colour rendering on the screen This is measured via steps in a greyscale on the screen Each greyscale step shall have similar colour hues in order to simplify colour interpretation and to avoid confusion for the user only the luminance shall vary Definition Colour greyscale linearity is the capability of the screen to maintain the same u v co ordinates of a greyscale pattern at all greyscale levels i e only the lumina
54. ency lt 5 Hz 5 Hz 100 Hz 2 kHz gt 2 kHz Attenuation gt 80 dB decade 3 dB decade 0 dB decade 3 dB decade gt 40 dB decade Frequency Band II Frequency lt 2 Hz 2 Hz 30 kHz 400 kHz gt 400 kHz Attenuation gt 80 dB decade 3 dB decade 0 dB decade 3 dB decade gt 40 dB decade After amplification and filtering the output voltage of the measuring probe shall be used to determine the r m s value of the electric field strength in both frequency bands The measuring time shall be sufficiently long to enable measurements with an accuracy of 5 at 50 60 Hz The measuring system shall be capable of measuring at least down to 2 0 V m in band I and down to 0 20 V m in band II The measuring probe shall be calibrated using a parallel plate capacitor air dielectric consisting of the measuring probe and a metal plate of at least 300 mm diameter The distance between the surface of the probe and the plate shall be 30 mm The calibration shall be performed with sinusoidal fields at the amplitudes and frequencies specified in Table B 4 0 3 2 Table B 4 0 3 2 Calibration frequencies and amplitudes Frequencies Amplitudes Band 50 100 500 1000 Hz 10 25 V m Band Il 15 30 60 120 kHz 1 0 2 5 10 V m Recorded values at these calibration points shall be within 5 of the nominal value Due to the nature of the specified filters the deviation shall be calculated at 1 kHz from 9 5 and 22 5 V m and at 120 kHz from 0 95 2 4 and 9 5
55. entre of the screen The luminance meter shall be directed towards the centres of the white and black squares and the luminances Lw and Lg shall be measured This is not a required measurement but it is advisable to carry out this measurement for laboratory reference use The FPD shall then be rotated around a vertical axis through the screen front centre changing the azimuth angle to 30 The luminances Lw 30 and Lg 30 at the centres of the white and black squares shall be recorded Finally the azimuth angle of the screen shall be changed to 30 and the new measurements Lw 39 and Lpg 30 taken TCO 03 Displays Flat Panel Displays Ver 3 0 72 2005 10 19 B 2 4 2 4 B 2 4 2 5 Test evaluation The luminance contrast values Co C 39 and C so shall be calculated using the formula C Ly L Ly L Co shall only be used as a laboratory reference Of C139 and C30 only the lowest value shall be reported as the luminance contrast The mandate according to clause A 2 4 2 is the following For FPDs in landscape mode the luminance contrast angular dependence shall be gt 0 8 at 30 horizontally from the viewing direction Overall uncertainty lt 10 in luminance lt 0 05 in contrast See B 2 0 7 TCO 03 Displays Flat Panel Displays Ver 3 0 73 2005 10 19 B 2 5 B 2 5 2 B 2 5 2 1 B 2 5 1 2 B 2 5 1 3 B 2 5 1 4 B 2 5 1 5 Front frame reflection characteristics Front frame gloss Prepa
56. entre point Instruments used for testing All instruments used for testing of FPDs shall be of good quality and carry a recent test certificate from a certified testing laboratory Necessary instrument calibration shall be done before tests are carried out Settings of the FPD e Section B 2 0 specifies the settings FPD controls shall have during testing e The standard controls of the FPD shall be used to configure and adjust the screen e g brightness contrast correlated colour temperature e An external control unit that is not a standard part of the FPD is not allowed e The colour depth shall be 24 bits 8 bits per colour channel or more e In Windows Display Properties Settings Advanced the Windows Small fonts option shall be used e In Windows Display Properties Appearance the Windows standard colour scheme option shall be used e The FPD shall have an auto setting possibility that gives an acceptable image quality This means that at least 12 of the steps in the 18 step greyscale shall be distinguishable If this condition is not fulfilled the FPD is not eligible for TCO certification Test image test character e All test images can be found on the home page of TCO Development www tcodevelopment com e The default testing 12 point Arial font and 100 zoom magnification shall be used The latest version of MS Windows is the default user interface e The default testing polarity is positive polarit
57. f the FPD Band Il 2 kHz to 400 kHz lt 1 0 V m measured at 50 cm around the FPD and at 30 cm in front of the FPD The following information shall be submitted A copy of a test report from a test laboratory approved by TCO Development TCO 03 Displays Flat Panel Displays Ver 3 0 24 2005 10 19 A 4 3 Alternating magnetic fields Background Magnetic alternating fields are created when an electrical alternating current flows through a conductor Like other electrical equipment displays are surrounded by magnetic alternating fields These magnetic alternating fields are generated by different parts of the display e g power supply unit voltage inverters and other electrical circuits The field strength depends on the actual electric current and on the distance from the FPD Certain display users are concerned about a possible health risk arising from magnetic alternating fields generated by equipment Quite a large number of users also report various kinds of symptom that cannot completely be attributed to the influence of other factors in the work environment or to medical reasons The obligatory requirements are based on the ambition to reduce the magnetic alternating fields to such a low level as not to burden the work environment with unnecessary factors The obligatory requirements shall not be regarded as hygienic limit values Applicability All FPDs Test procedure See B 4 3 References Mandate
58. following For an FPD in landscape mode the Au v between areas on the left side and the right side of the screen when it is positioned at 30 and at 30 horizontally to the screen normal shall be lt 0 025 Overall uncertainty lt 10 in luminance lt 0 003 units for u and v lt 0 3 in rotation angle See B 2 0 7 TCO 03 Displays Flat Panel Displays Ver 3 0 82 2005 10 19 B 2 6 5 B 2 6 5 1 B 2 6 5 2 B 2 6 5 3 B 2 6 5 4 Colour greyscale linearity Preparation of the FPD for testing e All necessary preparations described in B 1 and B 2 0 shall be done e A test image consisting of a white screen with 100 image loading as background shall be used with a test pattern as shown in Figure B 2 6 5 1 e Squares of 40 mm x 40 mm in size filled with the following greyscale steps 255 225 195 165 135 and 105 shall be arranged in the centre of the screen Figure B 2 6 5 1 A 6 step greyscale to be used for the measurement of colour greyscale linearity Each square is 40 mm x 40 mm in size The greyscale can be found at the TCO homepage www tcodevelopment com Equipment Spectro radiometer Test method The first grey step i e having level 255 shall be moved scrolled into the centre of the screen and both the luminance and the u and v co ordinates shall be measured The next grey step having level 225 shall then be moved scrolled into the centre position and measured The same procedure
59. for laboratory reference TCO 03 Displays Flat Panel Displays Ver 3 0 63 2005 10 19 3 The screen shall then be rotated 30 degrees around a vertical axis through the screen centre point and the luminances at positions Pr Pr Lpr 30 0 and Lpri 30 0 respectively shall be recorded See Figure B 2 3 4 2 4 The screen shall then be rotated 30 degrees around the vertical axis through the screen centre point and the luminances at positions Py and Pr Lpr 30 0 and Lpr 30 0 respectively shall be recorded See Figure B 2 3 4 2 5 For non pivot screens the screen shall then be tilted 15 degrees backwards around a horizontal axis through the screen centre point and the luminances at positions Pr and Pg Lprjo is and Lppo is respectively shall be recorded See Figure B 2 3 4 3 6 Pivot screens shall be measured in both the usual landscape mode and in the portrait mode 7 For the pivot screen landscape mode the test method will be the same as described above for non pivot screens in vertical position 3 and 4 8 With the pivot screen in the portrait mode and only with respect to rotation around the vertical axis the rotation around the vertical axis shall in this case only be 15 and the measurements at positions Pr and Pg Lpq 15 9 and Lppy 15 0 respectively shall be recorded 9 The measurements to be carried out are summarised in Table B 2 3 4 1 Table B 2 3 4 1 Reference Screen Screen Measuring points used above
60. frame gloss influences visual comfort and legibility by drawing attention away from the task at hand The higher the gloss value the more likely it is that the surface will create irritating specular reflexes mirror like reflexes from ambient lighting If the gloss value is high enough the problem of reflection images can occur Also the distinctness of the reflection influences its perceived impact The front frame shape can in some situations make a smooth frame act as a mirror and consequently increase the contrast between reflections and their background to a level that is far beyond the values that can be accepted by a user We are looking into the possibility to extend the gloss requirement to be valid also for the active surface of the panel but at the time of writing we not yet been able to establish the levels In the future we aim to set a level for gloss of the active surface of the panel Definition Gloss is a measure of how a light beam physically described as luminous flux is scattered at the surface when incident against that surface Gloss is a function of the directional reflectance properties of a surface Applicability All FPDs Test procedure See B 2 5 2 References Please see reference 5 6 7 and 37 Mandate The gloss value G 60 shall be 30 gloss units or less The following information shall be submitted A test report from a test laboratory approved by TCO Development TCO 03 Disp
61. he board the copper layer is removed in the annulus between radii 50 and 52 mm see Figure B 4 0 3 1 The copper foil surrounded by the annulus is the active measuring surface It is connected to one input terminal of an operational amplifier with capacitive feedback The other input terminal of the operational amplifier the copper ring outside the active surface and the back of the board are connected to ground The output voltage U from the probe active surface with area A is related to the incident electrical field E averaged over the active surface according to U e E A C where C is the capacitance in the feedback loop of the operational amplifier and is the permittivity for a vacuum 300mm _ 100mm 2mm gt lt Coaxial cable Figure B 4 0 3 1 Sketch and circuit principle of the Alternating electric field meter for alternating electrical field measurements The feedback circuit of the operational amplifier is a capacitance C in parallel with a high value resistor R to ensure that there is no DC voltage across the plates of the capacitor C TCO 03 Displays Flat Panel Displays Ver 3 0 88 2005 10 19 The specifications for the frequency response of the are given by the calibration procedure The signals from the probe shall be filtered by high pass and low pass filters The specification of the filters is given in Table B 4 0 3 1 Table B 4 0 3 1 Filter specifications Frequency Band Frequ
62. he mains but has been disconnected from an external power source This mode is usually engaged by the consumer via a hard off switch While in this mode a product will not draw any electricity and will usually measure 0 watt when metered Disconnected The product has been unplugged from the mains and is therefore disconnected from all external power sources TCO 03 Displays Flat Panel Displays Ver 3 0 97 2005 10 19 B 7 0 2 B 7 0 3 B 7 0 4 Test laboratory general requirements Dark room conditions When performing light measurements the FPD shall be located in a dark room condition The FPD illuminance measurement when the screen is switched off must be 1 0 lux or less Measurements should be made at a point perpendicular to the screen using a Luminance meter with the power to the FPD switched off Reference VESA FPDM Standard 2 0 Section 301 2H 3 Test conditions general criteria e AC mains voltage 230 VAC RMS tolerance 1 e AC mains frequency 50 Hz tolerance 0 5 Hz e Line impedance 0 25 Q e Total harmonic distortion lt 2 e Test room temperature 233 C 1 e Humidity 20 75 RH non condensing 2 e Refresh rate 60 Hz _ or other voltage and frequency combination specified by the client based on the market in which the FPD will be sold Notes 1 Energy Star states 2045 C 2 Energy Star states 30 80 RH 3 Energy Star uses an LMD Light Measuring Device TCO Development uses
63. ice work with visual display terminals VDTs Part 3 Visual display requirements International Organisation of Standardisation 1992 ISO 9241 5 Ergonomic requirements for office work with visual display terminals VDTs Part 5 Workstation layout and postural requirements International Organisation of Standardisation Nymans Berns Gelin 1995 research report Do AM LCD monitors offer better ergonomic solutions than CRTs Statshalsan 1990 User recommendations from the Swedish Foundation of Occupational Health for State Employees report Man Monitor and Work Environment UK Department of Trade and Industry Consumer Safety Unit Adult data DTI Pub 45 3k 01 00 NP VESA Flat Panel Monitor Physical Mounting Interface Standard FPMPMI version 2 0 Revision 3 March 1 or VESA Flat Display Mounting Interface Standard FDMT Version 1 October 28 2002 which replaces and supersedes FPMPMI EN 60950 IEC 60950 Safety of information technology equipment including business equipment CLRTAP the UN ECE Convention on Long range Transboundary Air Pollution The 1998 Aarhus Protocol on Heavy Metals EMAS EU regulation no 761 2001 concerning the voluntary participation of industrial companies in the Union s environmental control and review structure Esbjerg declaration 4th North Sea Conference 1995 EU Directive 91 157 EEC on batteries and accumulators containing certain dangerous substances EU Directive 76 769 EEC
64. image H 2 W 2 Front frame Figure B 1 9 2 The TCO default test image shown with an 18 step greyscale inserted above the white square at the centre of the FPD screen An 18 step greyscale which shall be used to optimise the image quality of the display shall be presented just above the white square in the TCO default test image as shown in Figure B 1 9 2 The greyscale shall range from RGB 255 255 255 to RGB 000 000 000 The total size of the scale shall be approximately 40 mm x 80 mm and positioned close the screen centre The greyscale shall range from RGB 255 255 255 to RGB 000 000 000 The 18 step grey scale shall consist of squares with grey levels 255 240 225 TCO 03 Displays Flat Panel Displays Ver 3 0 55 2005 10 19 B 1 10 210 195 180 165 150 135 120 105 90 75 60 45 30 15 and 0 The squares shall have no line boarders e The 18 step grey scale may be accomplished by using the drawing mode in MS Word and making 18 squares with fillings of the different grey levels and putting them together to form a greyscale as shown in Figure B 1 9 2 The TCO default test image as well as instructions for making the 80 image loading can be found on the TCO Development home page www tcodevelopment com The grey scale shall be used to optimise the image quality of the display For FPDs the grey scale will not affect the luminance setting of the display since FPDs are not sensitive
65. ioned CCTs are given in Table B 2 6 1 1 TCO 03 Displays Flat Panel Displays Ver 3 0 76 2005 10 19 B 2 6 1 5 Table B 2 6 1 1 CCTinK U ccT If default CCTs other than those given in Table B 2 6 1 1 are used in the test u ccr and v ccr can be found by using CIE tabulated data or by using CIE formulae presented in CIE Publication 15 2 1986 Colorimetry p 11 p 27 28 and p 53 54 Table 1 3 If the spectro radiometer used only can produce CIE 1931 x and y chromaticity co ordinates these can be transformed to u and v chromaticity co ordinates by using the formulae in the CIE Publication 15 2 mentioned above The relevant CIE material conversion formulae and tabulated data for u ccr and v ccr can also be found on the TCO homepage www tcodevelopment com A computer program based on the given equations can be supplied by TCO The resulting colour difference calculation shall be presented to 3 decimal places The mandate according to clause A 2 6 1 is the following The FPD shall have at least two predefined possibilities for pre set correlated colour temperatures and one possibility for the user to adjust the CCT total of three settings Each pre set correlated colour temperature shall have a colour difference Au v lt 0 01 when compared to CIE u and v chromaticity co ordinates for corresponding correlated colour temperatures Overall uncertainty lt 0 003 in u and v See B 2 0 7 TCO 03 Dis
66. ioned such that the tangential plane to the centre centre point of the screen surface is at a right angle to the horizontal plane The distance between the centre centre points of the screen surface and the back of the FPD including an eventual part of a stand holder along the normal to this tangential plane is called L The origin of the cylindrical co ordinate system is chosen to be situated at a distance L 2 behind the screen surface on the normal to the tangential plane through the centre centre point The z axis is chosen to be at a right angle to the horizontal plane The angular reference direction is along the above mentioned TCO 03 Displays Flat Panel Displays Ver 3 0 95 2005 10 19 B 4 3 4 B 4 3 5 normal in the direction pointing outwards from the screen An angle 9 is positive in the counter clockwise direction Measurements shall be made at all points which have a minimum clearance of 0 25 m to the outer surface of the FPD and with co ordinates according to Z 0 3m z 0andz 03m r L 2 0 5 m at the front also L 2 0 3 m in band I 9 p 22 5 where p represents all integers in the range 1 lt p lt 15 In case of less then 0 25 m clearance the instrument shall be moved out radial until 0 25 m clearance is achieved Distances are given in metres and angles in degrees The measuring coils shall be stationary during the measurements For FPD luminance settings see General test conditions for emissions
67. irements for Computer Monitors Tier 2 for sleep mode off mode and on mode as predicted on the release of version 2 0 The requirement will become valid January 1 2006 The requirement on front frame reflectance is removed in this version The reason for this is partly the results obtained in the perceptual study called FFC Front Frame Characteristics which confirmed that gloss is the most important parameter and that the effect of diffuse reflectance depends to a large extent on other factors such as individual preference and the environment surrounding the display Read more about this in TCO Development s updated position on front frame reflectance which is available from TCO Development upon request It is important to put the individual product requirements for displays into a functional context We have therefore published The Advisor on our website which provides advice on purchase and use of computer displays for example on high contrasts within the visual field TCO 03 Displays Flat Panel Displays Ver 3 0 3 2005 10 19 In this version the ecological requirements are adapted to the EU directives Restriction of certain Hazardous Substances RoHS and Waste Electrical and Electronic Equipment WEEE The requirements will become valid July 1 2006 Some minor changes of requirements due to interpretations that have previously been communicated are also included A separate document Summary of changes in
68. is found It is advisable to start the adjustment at the default contrast setting and to adjust the brightness Equipment Luminance meter TCO 03 Displays Flat Panel Displays Ver 3 0 60 2005 10 19 B 2 3 1 3 B 2 3 1 4 B 2 3 1 5 B 2 3 2 B 2 3 2 1 B 2 3 2 2 B 2 3 2 3 Test method The luminance at the centre of the white test area shall be measured with the luminance meter directed orthogonally to the test area as described in B 2 0 5 Test evaluation The measured luminance is the required value The luminance shall be reported with no decimal places The mandate according to clause A 2 3 1 is the following The maximum luminance of the FPD shall be gt 150 cd m Overall uncertainty lt 10 in luminance See B 2 0 7 Luminance uniformity Preparation of the FPD for testing e All necessary preparations described in B 1 and B 2 0 shall be done e The entire active area of the screen shall be white and the FPD colour setting shall be RGB 255 255 255 Equipment Luminance meter Test method The luminance uniformity shall first be evaluated visually by the technician in order to find the darkest and the brightest areas The most applicable of the following luminance uniformity tests shall then be performed e Measure the luminance in the darkest and brightest areas that were visually identified Then in addition to this measure the luminance at each corner position as shown in Figure B 2 3
69. is the smallest addressable imaging element of the FPD capable of reproducing a full range of luminance and colours The pixel array is the number of pixels in the horizontal direction by the number of pixels in the vertical direction that the display can present Applicability All FPDs Test procedure See B 2 1 1 References Please see reference 2 36 and 44 Mandate The FPD shall have a pixel density gt 30 pixels degree For the most common display formats the mandates are Display format Horizontal pixels Vertical pixels 5 4 3 896 679 18 36 16 9 972 557 6 4 5 4 875 706 For wide format displays or other special FPD formats the pixel density shall be calculated The horizontal to vertical resolution ratio shall be as close as possible to the width to height ratio of the display The following information shall be submitted A test report from a test laboratory approved by TCO Development TCO 03 Displays Flat Panel Displays Ver 3 0 7 2005 10 19 A 2 3 A 2 3 1 Luminance characteristics Luminance level Background It shall be possible to set a sufficiently high luminance level with respect to the ambient lighting in order to present a comfortable viewing situation and to avoid eyestrain Poor luminance can lead to low contrast and consequently affect legibility and colour discrimination and by that cause misinterpretations It shall be possible to set the luminance level according to the
70. l Displays Ver 3 0 79 2005 10 19 B 2 6 3 B 2 6 3 1 B 2 6 3 2 B 2 6 3 3 B 2 6 3 4 B 2 6 3 5 RGB settings Preparation of the FPD for testing e All necessary preparations described in B 1 and B 2 0 shall be done e For RGB measurements red green and blue 40 mm x 40 mm squares shall consecutively be positioned in the centre of the screen surrounded by a grey area of 80 image loading e The RGB settings shall be the following 255 000 000 for red 000 255 000 for green 000 000 255 for blue Equipment Spectro radiometer with a capacity to present u and v co ordinates with at least 3 decimals Test method The instrument shall be directed orthogonally towards the different test square centres at the measurement distance described in B 2 0 5 The chromaticity co ordinates of the red green and blue squares shall be measured Test evaluation The recorded chromaticity co ordinates u and v for the red green and blue squares shall be reported The u and v shall be presented to 3 decimal places The mandate according to clause A 2 6 3 is the following The minimum colour triangle shall have the following co ordinates for red u gt 0 411 and v gt 0 503 for green u lt 0 140 and v gt 0 548 for blue u gt 0 150 and v lt 0 224 Overall uncertainty lt 0 003 in u and v for red and green lt 0 007 in u and v for blue See B 2 0 7 TCO 03 Displays Flat Panel Displays Ver
71. l be lt 1 7 2 For nonpivot FPDs in landscape mode and in the vertical direction the value of the Lmax to Lmin ratio at 15 shall be lt 1 7 3 For pivot FPDs in portrait mode in the horizontal direction the largest ratio value of Lmax to Lmin at 15 shall be lt 1 7 Overall uncertainty lt 10 in luminance lt 0 3 in rotation angle lt 0 1 unit in luminance uniformity See B 2 0 7 TCO 03 Displays Flat Panel Displays Ver 3 0 66 2005 10 19 B 2 4 B 2 4 1 B 2 4 1 1 B 2 4 1 2 B 2 4 1 3 Luminance contrast characteristics Luminance contrast characters Preparation of the FPD for testing All necessary preparations described in B 1 and B 2 0 shall be done A micro photometer for luminance measurement shall be aligned orthogonally to the FPD screen The test image shall be filled with rows of the regular capital letter H in 12 point Arial font The brightness and contrast shall be set as for the TCO default test image at the test luminance Equipment A micro luminance meter such as an array photodetector capable of measuring luminance on structures lt 0 02 mm Measurement requirements are given in clause B 2 0 2 Test method By visual evaluation of the standard test measurement position the technician shall search for and locate visual stripes or patches that clearly influence the contrast of characters or even parts of characters Once the patches are visually iden
72. lay OSD set up Sometimes this setting is called Factory setting If the display does not have a recall function the Auto setting function is pressed and that CCT is used An Auto setting is mandatory Note Usually the display has an additional OSD menu that is accessible only by the factory or by authorised people The term in the user OSD should be Default setting and the term in the factory only OSD should be Factory setting All tests shall be performed at the default CCT It is therefore possible that other CCTs do not have the same performance as the tested one Only the CCT testing will be performed at other values than the default CCT The client shall specify the pixel array of the FPD and the vertical and horizontal frequencies for testing B 1 3 Graphic card Video adapter The client shall specify if a particular graphic card shall be used for testing In this case the graphic card shall be representative of the common use of the FPD for example included in the motherboard of associated equipment Non standard graphic cards shall not be accepted for testing unless they are for a special purpose relevant for the product and sold together with it If the client does not specify a graphic card a high quality standard graphic card from the testing laboratory shall be used This shall be reported in the test report and the client shall be informed The graphic card shall be easily commercially available or supplied
73. lays Flat Panel Displays Ver 3 0 14 2005 10 19 A 2 6 A 2 6 1 Screen colour characteristics Correlated colour temperature CCT variation Background Most FPDs are today equipped with a number of pre set correlated colour temperature settings This makes it possible to more accurately evaluate the colour of an image on the FPD compared to real scenes or prints Physical measurements of colour stimuli can only give an indication of the colour appearance in a practical situation The colour of the frame the spectral composition of the lighting the colour of various areas in the visual field and the complexity of brightness variations in the visual field all influence the colour appearance of an FPD image Normal daylight has a correlated colour temperature in the range 5000 10000 K Definition The correlated colour temperature is a measure of the perceived screen colour expressed in kelvin K Applicability All FPDs Test procedure See B 2 6 1 References Please see reference 2 3 4 8 12 14 15 17 24 25 26 28 30 34 36 and 38 Mandate The FPD shall have at least two predefined possibilities for pre set correlated colour temperatures and one possibility for the user to adjust the CCT total of three settings Each pre set correlated colour temperature shall have a colour difference Au v lt 0 01 when compared to CIE u and v chromaticity co ordinates for corresponding correlated colour temperatu
74. n an illuminated background positive polarity see section B 1 8 for details concerning this setting Any pivot FPD that can be used in both normal landscape position and portrait position turned 90 shall have measurements taken in both positions The worst case shall be reported Any FPD equipped with a height adjustable stand shall have measurements taken in both the lowest and highest positions Both measurements shall be done with the FPD positioned to the centre centre point of the screen surface The worst case shall be reported The FPD must comply with the mandatory requirements without having to rely on an earth connection via the signal cable In order to test an FPD without an earth connection via the power cable a battery operated computer with no connection to earth can be used to operate the FPD If the FPD is connected to mains via a detachable mains cord the measurement shall be performed with a non shielded mains cord of normal type connected to earth for CLASS I device An FPD without an external power supply shall be connected to mains via the above mentioned power cable which shall run from the point of its connection on the FPD and then horizontally straight to a point 0 4 m behind the screen surface TCO 03 Displays Flat Panel Displays Ver 3 0 85 2005 10 19 The cable shall then from this point run downwards at least 1 m see figure B 4 0 2 1 Depth L Centre centre point Figure B
75. n and international programme exchange 12 E B U Standard for chromaticity tolerances for studio monitors Tech 3213 E August 1975 13 SMPTE 170M 1999 Television Composite Analog Video Signal NTSC for Studio Applications 14 Hunt R W G Measuring colour 3rd edition 1998 Kingsley Upon Thames Fountain Press 15 ISO TC130 WD 12646 p 5 Section 4 7 Chromaticity and luminance of the white and black points and tracking Oy re TCO 03 Displays Flat Panel Displays Ver 3 0 47 2005 10 19 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 ISO 3664 1999 Viewing conditions for graphic technology and photography p 9 Uniformity of screen luminance ISO 3664 1999 Viewing conditions for graphic technology and photography p 5 4 2 4 Surround and backing for reflection viewing Note 1 p 8 ISO 3664 1999 Viewing conditions for graphic technology and photography p 10 Monitor luminance Barten P G J 1999 Contrast sensitivity of the human eye and its effects on image quality SPIE Optical Engineering Press Barten P G J 1999 Contrast sensitivity of the human eye and its effects on image quality SPIE Optical Engineering Press p 105 106 Barten P G J 1999 Contrast sensitivity of the human eye and its effects on image quality SPIE Optical Engineering Press p 179 Barten P G J 1999 Contrast sensitivity of the human eye
76. nce shall change from one greyscale step to the next Applicability All FPDs Test procedure See B 2 6 5 References Please see reference 2 8 14 15 23 25 29 and 35 Mandate The greyscale steps to be used are 255 225 195 165 135 and 105 and each should be measured in the centre of the screen The maximum difference in either u or v identifies those steps where Au v should be calculated The Au v shall be lt 0 02 The following information shall be submitted A test report from a test laboratory approved by TCO Development TCO 03 Displays Flat Panel Displays Ver 3 0 19 2005 10 19 A 3 Work load Ergonomics Work load ergonomics concerns the adaptation of tasks tools the work place and the rest of the physical environment in order to meet and optimize the users needs for a good work environment Computer equipment is just as much as furniture lighting and other office equipment an important part of the modern office work environment TCO Development wants to contribute to the development of FPDs with good user characteristics on the basis of work load ergonomics This thereby enhances the possibility for users to be able to have good quality FPDs so that the best possible conditions for physical variation are created in the work environment It is important for FPDs to offer users the possibility of variation between different work postures An aesthetically appealing design must not re
77. nteract the current trend for global warming Energy consumption Background This requirement and test method has been harmonized with Energy Star s requirements on FPDs and includes requirements for on mode sleep mode and off mode Definitions On Mode The FPD is connected to a power source and produces an image Sleep Mode The reduced power state that the FPD enters after receiving instructions from a computer or via other functions Off Mode The lowest power consumption mode which cannot be switched off by the user and that may persist for an indefinite time when an FPD is connected to the main electricity supply Off mode is the power state when the FPD is connected to a power source produces no images and is waiting to be switched to the On Mode by a direct signal from a user computer e g user pushes power switch Applicability FPDs Test procedure See B 7 1 References Please see references 70 74 TCO 03 Displays Flat Panel Displays Ver 3 0 45 2005 10 19 Mandate The FPD shall meet the following requirement levels for maximum power consumption Until January 1 2006 FPD Sleep mode Off mode On mode Maximum power s4W lt 2 W iz be declared consumption From January 1 2006 FPD Sleep mode Off mode On mode Maximum power lt 2 W lt 1 WwW e if X lt 1 megapixel consumption then Y 23 e if X gt 1 megapixel then Y 28X X is the number of megapixels Y is the energy consump
78. oadcasting Union http www ebu ch tech_info html e IEC International Electrotechnical Commission www iec ch e ISO International Organization for Standardization http www iso org e ITU International Telcommunication Union www itu int home index html e SMTPE Society of Motion Picture Television Engineers www smtpe org e VESA Video Electronics Standards Association www vesa org 1 CIE Publication 69 1987 Methods of characterizing illuminance meters and luminance meters performance characteristics and specifications 2 Flat Panel Display Measurements Standard FPDM Version 2 0 VESA Video Electronics Standards Association Display Metrology Committee June 1 2001 CA 95035 Milpitas http www w3 org Graphics Color sRGB html SMPTE RP 145 1994 SMPTE C Color Monitor Colorimetry ASTM gloss standard D523 1SO2813 1994 Paints and varnishes Determination of specular gloss of non metallic paint films at 20 degrees 60 degrees and 85 degrees International Organisation of Standardisation 1994 DIN 67 530 8 CIE Publication 15 2 1986 Colorimetry p 11 p 27 28 and p 53 54 table 1 3 9 IEC 61966 2 1 1999 10 Multimedia systems and equipment Colour measurement and management Part 2 1 Colour management Default RGB colour space sRGB 10 ITU R Recommendation BT 470 6 Conventional television systems 11 ITU R Recommendation BT 709 5 Parameter values for the HDTV standards for productio
79. or FPDs sold in America North and South In at least one country or one state in the USA where the FPD is sold From July 1 2006 1 For FPDs sold in Europe In the countries within the European Union where the FPD is sold and where the EU directive 2002 96 EC WEEE is applicable 2 For FPDs sold in Asia In at least one Asian country where the FPD is sold 3 For FPDs sold in America North and South In at least one country or one state in the USA where the FPD is sold TCO 03 Displays Flat Panel Displays Ver 3 0 43 2005 10 19 The following information shall be submitted A written guarantee that the above mandate is fulfilled The guarantee shall be signed by the responsible person at the applicant company A copy of the description of the customer information If this is provided in local language a translation into English shall be submitted as well We hereby guarantee that the above mandate is fulfilled Signature Name and title in block capitals Date Company TCO 03 Displays Flat Panel Displays Ver 3 0 44 2005 10 19 A 7 A 7 1 Energy There are both indoor and outdoor environmental aspects that concern energy consumption of displays Most of the electrical energy consumed by an FPD is converted into heat energy which warms up the surrounding room If the room must be cooled down more energy is needed An important global environmental goal is to reduce energy consumption to cou
80. plays Flat Panel Displays Ver 3 0 77 2005 10 19 B 2 6 2 B 2 6 2 1 B 2 6 2 2 B 2 6 2 3 B 2 6 2 4 Colour uniformity Preparation of the FPD for testing e All necessary preparations described in B 1 and B 2 0 shall be done e The FPD colour setting shall be RGB 255 255 255 Equipment Spectro radiometer with a capacity to present u and v co ordinates with at least 3 decimals Test method The colour uniformity shall first be evaluated visually by the technician in order to find those areas where the colour varies the most The most applicable of the following colour uniformity test shall then be performed e Measure the chromaticity co ordinates u and v in the visually most colour deviating areas Then in addition to this measure the chromaticity co ordinates in the corner positions as shown in Figure B 2 3 2 1 e Ifno areas can be identified where the colour varies measure the chromaticity co ordinates in corner the positions as shown in Figure B 2 3 2 1 e An alternative measurement procedure is the following Use a scanning spectro radiometer aimed orthogonally to the FPD screen plane and measure chromaticity co ordinates all over the screen surface A suitable measurement point density is roughly one per 10cm Test evaluation Au v according to the CIE 1976 uniform chromaticity scale diagram shall be calculated for each measured position using the formula Au y Vu u y en V4 y where A and B a
81. plying a moving average to the basic input data For example the 1 minute of arc filtering applied to the luminance signal in Figure B 2 4 1 3 gives the signal in Figure B 2 4 1 4 TCO 03 Displays Flat Panel Displays Ver 3 0 69 2005 10 19 1 minute of arc filtered luminance signal used for Lmin calculation 150 100 Relative luminance 0 0 1 0 2 0 mm in scanning direction min of arc signal mee Lin Figure B 2 4 1 4 The luminance signal filtered to 1 minute of arc and showing Lmin e The lowest relative luminance in the vertical stroke in the 1 minute of arc signal is Lmin In the example of Figure B 2 4 1 4 the Lmin value is 14 cd m e To find the Lmax proceed as follows The 4 minute of arc signal filtering shall be obtained by applying a moving average to the minute of arc signal This corresponds to a more comfortable viewing condition The filtered luminance signal is shown in Figure B 2 4 1 5 TCO 03 Displays Flat Panel Displays Ver 3 0 70 2005 10 19 4 minutes of arc filtered luminance signal used for Lmax calculation 150 100 9 50 0 0 0 1 0 2 0 mm in scanning direction 4 min of arc signal we max Figure B 2 4 1 5 The 1 minute of arc luminance signal filtered to 4 minutes of arc and showing Lmax e The maximum luminances may be different on the two sides of the H stroke Select the lower one as Lmax In the example of Figures B 2 4 1 4 and B 2 3 1 5 the luminance is lower on
82. purchased and how they are to be installed shall be provided to the customer in the user s manual The following information shall be submitted If mandate 3 is met a copy of the information in the user s manual shall be included Awritten guarantee that the FPD meets one of the above mandates The guarantee shall be signed by the responsible person at the applicant company We hereby guarantee that the above mandate is fulfilled Date Company TCO 03 Displays Flat Panel Displays Ver 3 0 22 2005 10 19 A 4 Emissions The amount of electrical equipment in our work places is increasing tremendously with a concomitant increase in the presence of electrical and magnetic fields Users of IT equipment now have several nearby field sources placed on work surfaces that are constantly in use The degree of exposure of users working with this equipment is increasing The permanent relationship of the body to certain field sources such as visual distance from displays mobile telephone location next to the ear and the proximity of lighting needed for the work are realities that exacerbate this development When the first TCO label was introduced in 1992 one of the main interests was the requirements for electrical and magnetic fields Still the scientists and experts are divided around the question if they can cause any damage to the humans The amount of fields surrounding us is increasing so still the criteria in the standard ar
83. r all measurements except for the micro photometric luminance measurements see below An automated instrument using collimating optics may be used for testing although the measurement area will differ somewhat from the area covered by the luminance meter When the luminance measurement in this case is done at a shorter distance than 1 5 x the screen diagonal D because of instrumental constraints the laboratory shall verify that the results are equal to those done at 1 5 x D e Micro photometer Micro photometric registration of the luminance distribution of test patterns shall be performed with an array photo detector device capable of resolving structures of lt 0 02 mm A scanning device shall not be used because it is sensitive to jitter and other variations that may occur during a scanning e Reflectometer An instrument designed for the measurement of reflectance shall be used e Spectro radiometer An instrument for the measurement of radiant flux as a function of wavelength shall be used A spectro radiometer for the measurement of light and colour is normally equipped with a microprocessor that makes it possible to obtain luminance and colour co ordinates directly from raw measurement data A spectro radiometer can replace the luminance meter when suitable Measurement distance Luminance and colour measurements shall be carried out through a point simulating the eye position of the operator at a distance of 1 5 x D from the
84. r m s value for each of the coil signals and use the root of the squared sum of those r m s values as the test result The measuring time shall be sufficiently long to enable measurement with an accuracy of 5 at 50 60 Hz The alternating magnetic field meter in band I and band II shall be capable of measuring down to at least 40 nT in band I and down to 5 0 nT in band II The alternating magnetic field meter in band I and band II shall be calibrated using a Helmholtz type calibration coil as shown in the Figure B 4 0 3 2 Calibration set up Calibration shall be performed with sinusoidal fields at the amplitudes and frequencies specified in Table B 4 0 3 3 B 4 5x10 7xNxt N 2 number of turns in each part of the coil Figure B 4 0 3 2 Calibration using a Helmholtz type calibration coil TCO 03 Displays Flat Panel Displays Ver 3 0 90 2005 10 19 Table B 4 0 3 3 Calibration frequencies and amplitudes Frequencies Amplitudes Band 60 100 500 1000 Hz 200 2000 nT Band Il 15 30 60 120 kHz 25 250 nT Recorded values for these calibrations shall not deviate more than 5 from the nominal value Due to the nature of the specified filters the deviation at 1 kHz shall be calculated from 180 nT and 1800 nT and at 120 kHz from 24 nT and 240 nT The calibration shall be performed for each of the three individual coils separately exposed and for one situation where approximately the same flux density passes through
85. ration of the FPD for testing e No special preparation of the FPD is needed e FPD frame surfaces to be tested shall be clean e A gloss measurement instrument needs an absolutely flat surface to function properly e Ifthe front frame of the FPD is curved a measurement could be made elsewhere on the housing provided that the measured surface microstructure texture and colour are the same as the surface of the front frame e Ifno absolutely flat test surface can be found on the screen frame the manufacturer can also supply a flat piece of material with optical properties fully equivalent to the front frame material Equipment A gloss meter in accordance with ISO2813 ASTM D 523 or DIN 67 530 and a calibrated reference standard The measurement of gloss shall be made using an instrument with an incident light beam angle of 60 to the normal of the measured surface Test method Measurement of gloss shall be made at several locations on the front frame of the FPD Logos brand names type marks control buttons and other small markings are excluded from the measurements and the requirements Gloss in different directions shall also be measured at the selected locations Test evaluation The gloss results shall be presented in gloss units with no decimal places The highest recorded gloss value shall be reported The mandate according to clause A 2 5 2 is the following The gloss value G 60 shall be 30 gloss units or less
86. re the two points found to have the largest colour difference between them The largest difference in Au v value shall be reported The result shall be presented to 3 decimal places TCO 03 Displays Flat Panel Displays Ver 3 0 78 2005 10 19 B 2 6 2 5 The evaluation procedure is exemplified below e Make a table of colour chromaticity values for each measured position Measurement position no e The largest u difference Au is 0 005 between 0 190 and 0 185 at measurement positions 1 and n 1 e The largest v difference Av is 0 015 between 0 447 and 0 432 at measurement positions 1 and n e Since Av 0 015 is much larger than Au 0 005 the Av value shall be used for the calculation of Au v e The corresponding two pairs of u and v to be used for the calculation are thus the values found at position 1 and position n and thus become the values used for points A and B such that u i u a 0 190 and v i v a 0 447 for point A in this example and u a u s 0 186 and v v s 0 432 for point B in this example Hence Au v 0 000016 0 000225 0 01552 which shall be reported as 0 016 The mandate according to clause A 2 6 2 is the following Au v lt 0 01 for the maximum colour deviation between measured active areas on the screen that are intended to maintain the same colour Overall uncertainty lt 0 003 in u and v See B 2 0 7 TCO 03 Displays Flat Pane
87. res The following information shall be submitted Declaration from the manufacturer and a test report from a test laboratory approved by TCO Development TCO 03 Displays Flat Panel Displays Ver 3 0 15 2005 10 19 A 2 6 2 Colour uniformity Background The human visual system is very sensitive to changes in colour hue in white and grey areas Since the white or grey colour hues are the background on which most colours are judged the white or grey areas are the reference colours on the screen Patches of colour variation on an active white or grey screen could reduce the contrast locally be disturbing and affect the legibility colour rendering and colour differentiation Definition The colour uniformity of an FPD is the capability to maintain the same colour in any part of the screen Applicability All FPDs Test procedure See B 2 6 2 References Please see reference 2 8 14 15 23 25 29 35 36 and 38 Mandate Au v lt 0 01 for the maximum colour deviation between measured active areas on the screen that are intended to maintain the same colour The following information shall be submitted A test report from a test laboratory approved by TCO Development TCO 03 Displays Flat Panel Displays Ver 3 0 16 2005 10 19 A 2 6 3 RGB settings Background Accurate colour rendering is important when realistic colour images or colour presentations are presented on the FPD screen
88. rotation tilt Note no PL PR Pr Non pivot pivot Without rotation X X For reference only Non pivot Landscape Non pivot Landscape Non pivot Landscape tilt Pivot Landscape Pivot Landscape Pivot Portrait Pivot Portrait Note In the pivot portrait mode Pr top and Pg bottom are equivalent to Pr and Pr in Figure B 2 3 4 1 TCO 03 Displays Flat Panel Displays Ver 3 0 64 2005 10 19 Luminence meter Figure B 2 3 4 2 Top view of test set up when the screen is rotated 30 degrees The rotation is defined clockwise TCO 03 Displays Flat Panel Displays Ver 3 0 65 2005 10 19 B 2 3 4 4 B 2 3 4 5 15 renews seca pee ee ene eet ees ee eae E AEE O E Luminence meter Figure B 2 3 4 3 Side view of the test set up for testing non pivot screens only when the screen is tilted 15 degrees backwards Test evaluation The luminance uniformity for angular dependence shall be calculated as follows For each separate measurement pair presented in Table B 2 3 4 1 a ratio between the two measured luminances shall be calculated This ratio or its inverse if it has a higher value shall be reported as the requested Lmax to Lmin luminance uniformity The result shall be presented to 2 decimal places The mandate according to clause A 2 3 4 is the following 1 For pivot FPDs and for nonpivot FPDs in landscape mode and in the horizontal direction the mean value of the Lmax to Lmin ratios at 30 shal
89. shall be submitted A CB certificate or a national certificate from a CB member NCB shall be submitted TCO 03 Displays Flat Panel Displays Ver 3 0 27 2005 10 19 A 6 Ecology The TCO Development labelling requirements have a unique integrated balance of indoor and outdoor environmental issues A good workplace environment shall not be gained at the expense of environmental problems in the surroundings we all share We call our demand on outdoor environmental criteria ecological requirements The vision and business idea of TCO Development were inspired by Agenda 21 the Rio conference action plan for sustainable development The basis of our work is described in Chapter 29 of Agenda 21 The requirements that are present in this document are those that are in terms of the environment relevant to the product group commercially attainable and can be checked in a suitable way When choosing which environmental aspects are to be included TCO Development in the first place bases its selection on international references and secondly on those which are European or national The Ecological requirements cover environmental management system in production potential harmful substances in the product and aspects that support material recycling Plans for updating Areas which are not at present included in the requirements are under continual review by TCO Development Legislation which can affect the product group is
90. splays Flat Panel Displays Ver 3 0 81 2005 10 19 B 2 6 4 4 B 2 6 4 5 e The screen shall finally be rotated 30 degrees around a vertical axis through the screen centre point and the chromaticity co ordinates at positions P1 Pr u pL 30 V PL 30 and u pry 30 V pr 30 respectively shall be recorded e Pivot screens shall only be measured in the usual landscape mode Test evaluation Au v according to the CIE 1976 uniform chromaticity scale diagram shall be calculated for each measured position using the formula Au y u u s i k v V z i where A and B are the two points found to have the largest colour difference between them The largest difference in Au v value shall be reported The result shall be presented to 3 decimal places The evaluation procedure is exemplified below e Make a table of chromaticity values for each measurement position and calculate Au v for 30 for and 30 Measurement position no Examplevalueu Example value v PL 30 0 447 PR 30 0 442 Difference at 30 0 005 A u v at 30 Measurement position no Examplevalueu Example value v PL 30 0 436 PR 30 0 432 Difference at 30 0 004 A u v at 30 Largest difference 0 0081 in this A u v example e The largest calculated Au v difference is 0 0081 when the screen is rotated 30 The test value to be reported is this value reported to 3 decimal places thus 0 008 The mandate according to clause A 2 6 4 is the
91. st luminance If the adjustments do not allow a precise test luminance setting a setting as close as possible to 125 cd m and within the region 125 135 cd m is acceptable To achieve this proceed as follows TCO 03 Displays Flat Panel Displays Ver 3 0 54 2005 10 19 Use the TCO default test image with an 18 step grey scale pattern see Figure B 1 9 2 presented on the screen at the default CCT setting The controls of brightness and contrast shall be adjusted to get the best visual performance of the pattern at the test luminance level This is usually achieved by first pressing the auto adjustment screen button to get the default setting of brightness and contrast The contrast shall be left at the default setting The brightness control shall then be adjusted to fine tune the screen luminance to 125 cd m If it is not possible to achieve the test luminance by this procedure it is suitable to start from a 50 contrast setting and then adjust the brightness Sometimes there is also a possibility for backlight adjustment which shall not be used unless specified by the manufacturer The main importance is to get the 18 step grey scale pattern optimised at the test luminance level If the greyscale quality is not acceptable it can be improved by changing the contrast setting The settings of the brightness contrast and backlight shall be kept for all test measurements However the image loading may vary depending on the content of the test
92. st the brightness controls until the white area of the screen provides at least 175 cd m of luminance measured according to VESA FPDM Standard 2 0 Section 302 1 If FPD maximum luminance is less than 175 cd m e g 150 then the technician shall use the maximum luminance e g 150 and include the value in the test documentation Similarly if FPD minimum luminance is greater than 175 cd m e g 200 then the technician shall use the minimum luminance e g 200 and include the value in the test documentation When light measurements such as illuminance and luminance need to be made a luminance meter shall be used with the FPD located in dark room conditions The luminance meter shall be used to make measurements at the centre of and perpendicular to the FPD screen at a distance of 1 5 x diagonal of the FPD screen size or following the procedure in section B 7 0 4 Luminance meters 3 e The FPD refresh rate shall be set to 60 Hz For digital interface displays the following voltage levels corresponds to the brightness of the image 0 volt black a setting of 0 0 1 volt dark shade of grey analogue 36 digital grey and 0 7 volt full white analogue 255 digital grey A digital signal generator should be used to perform the test measurements Equipment e RMS power meter e Luminance meter 3 Test method The following are the test steps for measuring the true power requirements of the FPD in On Mode Acti
93. strict the work load ergonomics function As a further complement and support for users ergonomic user instructions are available in the Advisor on TCO Development s webpage http www tcodevelopment com Plans for updating future requirements In pace with the rapid development of displays there is a need for updating the work load ergonomics requirements in order to create the best possible working environment Characteristics that might be included in future requirements are the shape of the frame display size display format Other characteristics such as adjustment controls their design position and feedback symbols as well as cable characteristics will also be taken into consideration TCO 03 Displays Flat Panel Displays Ver 3 0 20 2005 10 19 A 3 1 Vertical tilt Background It is a benefit to be able to tilt the FPD in the vertical plane This offers the possibility to tilt the FPD back in order to place the top of the FPD slightly farther away from the eyes than the bottom This is beneficial for the possibility of work posture alteration and flexibility particularly for neck comfort but also to obtain and utilise the best visual ergonomics of the FPD Applicability All FPDs References Please see references 39 48 Mandate It shall be possible to easily tilt the FPD in the vertical plane to the extent of 20 degrees or more The following information shall be submitted A written guarant
94. t can be manually selected the measurements should be taken with the device in the TCO 03 Displays Flat Panel Displays Ver 3 0 101 2005 10 19 B 7 1 4 B 7 1 5 mode that consumes most energy If the modes are cycled through automatically the measurement time should be long enough to obtain a true average that includes all modes Off Mode Standby Power Power switched off 1 At the conclusion of the Sleep Mode Low Power test initiate the FPDs Off Mode Standby Power The method of adjustment shall be documented along with the sequence of events required to reach the Off Mode Standby Power Power on all test equipment and properly adjust operation range 2 Allow the FPD to remain in Off Mode Standby Power until stable power readings are measured Measurements are considered stable if the wattage reading does not vary by more than 1 for the duration of the three minute period Manufacturers shall ignore the input sync signal check cycle when metering the model in Off Mode Standby Power Test evaluation Record the test conditions and test results as specified in section B 7 1 3 Overall uncertainty The uncertainty in the test results in the range e lt 10 W shall be better than 5 e 10 30 W shall be better than 2 e gt 30 W shall be better than 1 TCO 03 Displays Flat Panel Displays Ver 3 0 102 2005 10 19
95. t methods for IT equipment used in offices These definitive quality and environmental requirements have pointed the way for the rapid pace of development in this characteristically international branch The TCO certification system is a challenge for those manufacturers who have decided to adapt information technology to meet the needs of professionals the work environment and nature while at the same time accepting high quality requirements as a possibility rather than a burden The first TCO labelling program TCO 92 was launched in 1992 and has since been succeeded by TCO 95 and TCO 99 Each new generation of labelling has seen the requirements extended and tightened in pace with progress in technical innovation and development Nevertheless there has been a constant focus on the professional users and their demands on the tools they use in their work The publication of this TCO 03 Flat Panel Displays document marks the fourth generation of TCO labelling of displays We have chosen to retain the same areas as in the previous labelling programs but tightened a number of the requirements These are mainly concerned with the area of visual ergonomics where there have been rapid technical developments in recent years TCO Development welcomes comments on these requirements and suggestions for future updates Changes in version 3 0 In TCO 03 Displays version 3 0 the Energy requirements are harmonised with Energy Star Program Requ
96. tem is chosen to be situated at a distance L 2 behind the screen surface on the normal to the tangential plane through the centre centre point The z axis is chosen to be at a right angle to the horizontal plane The angular reference direction is along the above mentioned normal in the direction pointing outwards from the screen An angle 9 is positive in the counter clockwise direction Measurements shall be made at all points which have a minimum clearance of 0 25 m to the outer surface of the FPD and with co ordinates according to z 0 r L 2 0 5 m at the front also L 2 0 3 m 0 for band I B 0 90 180 and 270 for band II In case of less then 0 25 m clearance the instrument shall be moved out radial until 0 25 m clearance is achieved Distances are given in metres and angles in degrees The co ordinates are given for the centre of the measuring probe The surface of the probe shall be perpendicular within 5 to the radial axis TCO 03 Displays Flat Panel Displays Ver 3 0 92 2005 10 19 500mm l 500mm 500mm Figure B 4 2 3 1 Measurement geometry for band I top and band II bottom The FPD under test and the measuring probe shall be positioned at least 1 m from all significant metallic structures and objects Additional units and connecting cables necessary for the operation of the FPD which are not part of the test shall be placed so far away from the measuring setup that the fields they
97. tically down to the turn table from the point of its connection on the FPD and then horizontally straight to a point 0 4 m behind the screen surface The cable shall then from this point run downwards at least 1 m Depth L Centre centre point External power supply Figure B 4 0 2 2 FPD with external power supply units Note For pivot FPDs and FPDs equipped with height adjustable stands the cable has to be adjusted for the different positions TCO 03 Displays Flat Panel Displays Ver 3 0 87 2005 10 19 B 4 0 3 For measurements of alternating magnetic fields B 4 3 the power cable may be positioned in another way as the cable contributes a negligible amount to the magnetic field However external power supplies must be correctly positioned as they may give rise to magnetic fields If positioning according to the above rules is not possible then the positioning of the supply unit and cables shall be described in the test report Emission measurement instruments The instruments used for emission testing shall comply with the requirements and calibration procedures described below Alternating electric field meter The alternating electrical field emission from the FPD under test shall be determined by measuring the displacement current passing a given surface of the measuring probe The probe consists of a disc of double sided printed circuit board laminate with a diameter of 300 mm On the front of t
98. tified as having significantly lower contrast they shall be geometrically referenced from the upper left corner of the active image and measured see below If one position is found that does not fulfil the mandate there is no need to make further measurements With a micro luminance meter or a luminance scanner the luminance signal of and around a vertical stroke of a capital H of 12 point Arial font shall be measured The optical axis of the luminance meter shall be aligned with the normal of the screen surface at the measuring point The misalignment between the screen surface normal and the optical axis of the luminance meter shall be less than 0 3 The height h of the measuring windows shall be 1 3 of the actual height H of the character H The window shall be positioned symmetrically between the horizontal stroke and the lower ending of the vertical stroke see Figure B 2 4 1 1 TCO 03 Displays Flat Panel Displays Ver 3 0 67 2005 10 19 a b Figure B 2 4 1 1 Example of one capital H with a good contrast and one with b low contrast due to a paler and thinner left vertical stroke The measuring window having height h shall be positioned symmetrically between the horizontal stroke and the lower ending of the vertical stroke of the H e The physical width of each measuring window or the matrix element shall be less or equal to 1 8 of the pixel size but not more than 0 02 mm cf Figure B 2 4 1 2
99. tion in watts The following information shall be submitted An energy declaration sheet showing power consumption in active mode sleep mode and off mode together with display specific data from a test laboratory approved by TCO Development shall be submitted Energy declaration sheets Brand name holder manufacturer FPD model number FPD panel type Diagonal screen size in inches Aspect ratio Screen resolution Max no of pixels for declared screen size Luminance level Voltage level and frequency used No of lamps in background lightning FPD Sleep mode Off mode Measured power consumption in watts There shall be a description from the user s point of view of how the FPD is brought into its energy mode s and how this is indicated on the FPD The description shall be signed by the responsible person at the applicant company and submitted by the responsible person at the applicant company TCO 03 Displays Flat Panel Displays Ver 3 0 46 2005 10 19 R References International standard organisations referred to in the reference list below and their home pages e ASTM American Society for Testing and Materials http www astm org e CIE Commission Internationale de I Eclairage International Commission on Illumination www cie co at cie e DIN Deutsches Institut f r Normung e V www2 din de e EBU European Br
100. tion shall be submitted A written guarantee that the above mandate is fulfilled The guarantee shall be signed by the responsible person at the applicant company We hereby guarantee that the above mandate is fulfilled Product brand and model name TCO 03 Displays Flat Panel Displays Ver 3 0 34 2005 10 19 Date Company TCO 03 Displays Flat Panel Displays Ver 3 0 35 2005 10 19 A 6 2 4 Information regarding flame retarding agents Background The spread of synthetic chemical substances in various products is a global and very widespread environmental problem Knowledge in respect of the different health and environmental characteristics of these substances is very limited In order to be able to apply the correct type of measures good basic information is required Applicability All FPDs and the peripheral equipment supplied with them References Please see references 56 58 and 60 Mandate The material specifications shall be provided for plastic parts and PWB laminates that weigh more than 25 grams and which have flame retardant concentrations above 0 5 percent by weight The following information shall be submitted The table below shall be completed and signed by the responsible person at the applicant company Manufacturers of plastic materials who consider such information confidential may submit the information to a test laboratory approved by TCO Development Plastic Plastic
101. to image loading Test report The test results are valid only for the presentation form s and configuration s tested The manufacturer brand name model type and serial number if available shall be stated in the test report The mode s i e horizontal and vertical scan frequency and resolution used during the test shall be stated in the test report The supply voltage and frequency used during the test shall be stated in the test report together with the type of FPD panel type of AC adapter definition of whether the FPD is of pivot type or not and whether it is CLASS I or CLASS II The uncertainty for each given measurement result shall be stated in the test report TCO 03 Displays Flat Panel Displays Ver 3 0 56 2005 10 19 B 2 B 2 0 B 2 0 1 B 2 0 2 B 2 0 3 B 2 0 4 Visual ergonomics General test conditions for visual ergonomics Basic test requirements As described in section B 1 For all tests the FPD screen shall be clean Photometric laboratory general requirements Photometric measurements shall be performed under darkroom conditions This means that measurement data shall in no way be affected by direct light from sources or light reflected from interiors equipment clothes etc The laboratory shall have a routine for the control of the stray light level at the FPD screen Power supply and test room climate requirements for testing e AC mains voltage 230 VAC RMS tolerance lt 1 e A
102. ve Power Sleep Mode Low Power and Off Mode Standby Power The FPD shall be tested using the analogue interface except in those cases where one is not provided i e digital interface displays which are defined as only having a digital interface for purposes of this test method TCO 03 Displays Flat Panel Displays Ver 3 0 100 2005 10 19 On Mode Active power l 10 11 12 Connect the test sample to the outlet or power source and test equipment For computer displays shipped with an external power supply the external power supply as opposed to a reference power supply must be used in the test Power on all test equipment and properly adjust the power source voltage and frequency Check for normal operation of the test unit and leave all customer adjustments set to factory default settings Bring the test unit into On Mode Active Power either by using the remote control device or by using the ON OFF switch on the test unit cabinet Allow the unit under test to reach operating temperature approximately 20 minutes Set the proper display mode see section B 7 1 1 Provide dark room conditions see section B 7 0 2 Set size and luminance see section B 7 1 1 Once luminance is set dark room conditions are no longer needed Either verify that the wall outlet power is within specifications or adjust the AC power source output as described in B 7 0 3 Set the power meter current range The full scale value selected
103. waste has been a major issue for many years EU has decided upon a legislation for dealing with electronics waste and several European countries have already imposed legislation for product take back and recycling There are huge volumes of FPDs in the world and it is very important to get these products into a closed loop to avoid the entry of harmful substances into the environment Definition Environmentally acceptable recycling methods are e Product and component reuse e Material recycling with secured handling of hazardous chemicals and heavy metals e Pollution controlled energy recovery of parts of the FPD e The recycling company or companies shall work in compliance with the Basle Convention when exporting FPDs or parts of FPDs Placement in landfills of whole products is not acceptable Applicability All FPDs and the peripheral equipment supplied with them References Please see reference 68 Mandate The brand name holder or his representative associated company or affiliate shall inform its customers in the user s manual of the possibility to dispose of the FPD by environmentally acceptable recycling The information shall be made available to customers in the various geographical markets in the following way Until July 1 2006 1 For FPDs sold in Europe In at least three European countries where the FPD is sold 2 For FPDs sold in Asia In at least one Asian country where the FPD is sold 3 F
104. with the screen and be of recent model in order to give the tested combination a more general validity and to give any user of the FPD the possibility of purchasing the same graphic card as used in the testing The most recent versions of graphic cards and drivers are recommended A character generator shall only be used to operate the FPD if it is not possible to use a standard graphic card This is because a character generator is not representative of the usual way an FPD is run The graphic card used for testing shall not be used for more than the test object during the test if not stated by the client The computer or similar devices used to run the test object in the test shall not use any unnecessary software or hardware that could influence the test B 1 4 Conditions for the equipment under test The FPD being tested shall be physically prepared for testing and shall be warmed up until it is fully stabilised The FPD screen surface shall be clean when tested The FPD shall be tested under nominal conditions of input voltage current etc TCO 03 Displays Flat Panel Displays Ver 3 0 52 2005 10 19 B 1 5 B 1 6 B 1 7 B 1 8 FPD alignment for testing The FPD screen front shall be aligned vertically with the possibility to rotate the screen 30 around a vertical axis through the centre point of the screen front It shall also be possible to tilt the screen backwards 15 around a horizontal axis through the same c
105. written guarantee that the above mandate is fulfilled The guarantee shall be signed by the responsible person at the applicant company We hereby guarantee that the above mandate is fulfilled Date Company TCO 03 Displays Flat Panel Displays Ver 3 0 41 2005 10 19 A 6 3 4 Metallization of plastic housing and metal parts Background Recycling of used electronic products is an important environmental issue Material recycling and reuse are the best options from an environmental point of view Therefore TCO Development presents requirements that facilitate material recycling Definition Metallization is a surface deposition process whereby a metallic layer is applied to the surface of a completed shaped plastic part Examples of metallization processes are chemical coating and ion vapour deposition Applicability All FPDs Mandate 1 There shall be no internal or external metallization of the FPD outer plastic casing and foot 2 Moulded in or glued metal parts are not accepted The following information shall be submitted A written guarantee that the above mandate is fulfilled The guarantee shall be signed by the responsible person at the applicant company We hereby guarantee that the above mandate is fulfilled Date Company TCO 03 Displays Flat Panel Displays Ver 3 0 42 2005 10 19 A 6 3 5 Recycling information for customers Background Within the EU the problem of electronic
106. y black characters on a white background e Another possibility is to use a testing program that shall consist of software commonly used in office and home computer work The word processor should be able to produce the text and graphics required for the test procedures TCO 03 Displays Flat Panel Displays Ver 3 0 53 2005 10 19 B 1 9 All parts of the tests for a test object shall be conducted using the same font character size correlated colour temperature resolution operating system and other settings of the FPD controls etc unless otherwise stated in the test procedure The FPD shall be tested in accordance with pixel array requirements as specified in A 2 1 1 All testing if not otherwise stated for visual ergonomics emissions etc shall be performed using the same basic settings Making an 80 image loading test image The test image in Figure B 1 9 1 referred to as the TCO default test image has an 80 image loading with the luminance 125 cd m It shall be used for testing unless otherwise specified W 2 Front frame Figure B 1 9 1 The TCO default test image Where The background colour shall be set to RGB 204 204 204 i e equal to 80 image loading An active white square at the centre of the screen shall be 40 mm x 40 mm in size and have an RGB setting of 255 255 255 The luminance of the FPD shall be adjusted to produce a screen luminance of 125 cd m called the te
107. y gt 30 pixels degree For wide screens or other special FPD sizes the requirement level shall be calculated Overall uncertainty Uncertainty is not applicable in this case Product data information is sufficient TCO 03 Displays Flat Panel Displays Ver 3 0 59 2005 10 19 B 2 3 B 2 3 1 B 2 3 1 1 B 2 3 1 2 Luminance characteristics Luminance level Preparation of the FPD for testing H 2 All necessary preparations described in B 1 and B 2 0 shall be done The TCO default test image with an 18 step greyscale as shown in Figure B 2 3 1 shall be used for luminance level measurement W W 2 Front frame Figure B 2 3 1 TCO default test image with the 18 step greyscale inserted identical to Figure B 1 9 2 The FPD shall be adjusted to the default CCT The measurement position Pc shall be at the centre of a 40 mm x 40 mm square without line boarders having an RGB setting of 255 255 255 and positioned at the centre of the screen To achieve the maximum luminance proceed as follows Use the TCO default test image with an 18 step grey scale pattern presented on the screen at default CCT setting and the controls of brightness and contrast shall be adjusted to maximum If the image quality of the display becomes unacceptable see B 2 0 6 the controls shall be adjusted to lower values to find the setting where the highest possible screen luminance with an acceptable image quality

TCO`03 Displays

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