LMT121DNEFWD - topwaydisplay.com
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1. m oe LVDS Input L NC 6Bits LVDS Input 24bit mode 18bit mode nput LVDS receiver negative signal channel 0 nput LVDS receiver positive signal channel 0 ower Ground nput LVDS receiver negative signal channel 1 nput LVDS receiver positive signal channel 1 0 ower Ground 1 nput LVDS receiver negative signal channel 2 2 nput LVDS receiver positive signal channel 2 3 ower Ground 4 nput LVDS receiver negative signal clock 5 LVDS receiver positive signal clock signal channel 3 channel 3 H Display Reverse L NC Normal Display 3 2 BackLight Terminals Pin No Pin Name JIO Descriptions 1 1 1 1 BLVCC Positive Power Supply 2 BLGND Power Supply GND OV BLEN Input Backlight Driver Control T BLON HI Backlight Driving Booster enable BLON Lo Backlight Driving Booster disable PWM may be used to adjust the output brightness BING URL www topwaydisplay com Document Name LMT121DNEFWD Manual RevO 1 www topwaysz com Page 4 of 10 TOPWAY LCD Module User Manual LMT121DNEFWD 4 Absolute Maximum Ratings GND OV Top 25 C Unit Condition Operating Temperature Top 20 470 C NoCondensation Storage Temperature Ts 30 80 C NoCondensation Note1 Vin represent RINO RIN1 RIN2 RIN3 CLKIN Note2 Recommanded Temperature Humidity Graph as follow Relative Humidity RH 80 60 40 70 gt 40 20 0 20 40 60 80 Temperature2. Rise time Fall i l transmitter time 1 See the data sheet of LVDS transmitter 6 2 Input signal timing chart Horizontal timing TTS N N ex UUU UU DATA me y war 06 AND EK E T s ye DE Vertical timing DATA A B invalid Invalid LU 2 599 600 or Note 1 DATA A RAO RA7 GA0 GA7 BAO BA7 DATA B RBO RB7 GBO0 GB7 BBO BB7 URL www topwaydisplay com Document Name LMT121DNEFWD Manual RevO 1 www topwaysz com Page 7 of 10 TOPWAY LCD Module User Manual LMT121DNEFWD 7 Optical Characteristics White at center Luminance BRD BL lt 6U 0 6D20 White Black at center Contrast ratio R 0 6L 0 au o eD o White Luminance uniformity 6R 0 6L 0 g 0 L in Green Ss S L 0 Color gamut 6D 0 At center against NTSC White to black UU OD 0 CRz10 8U 0 8D 0 CRz10 Note4 GR 0 8BL 0 CR 10 BR lt U BL 0 CRE10 Note 1 The value above are initial Characteristics URL www topwaydisplay com Document Name LMT121DNEFWD Manual RevO 1 www topwaysz com Page 8 of 10 TOPWAY LCD Module User Manual LMT121DNEFWD Note 1 Note 2 The data are measured after LEDs are turned on for 5 minutes The definition of viewing angle LCM displays full white The brightness is the average value of 9 Refer to the graph below marked by 0 and o measured spots Measurement equipment SR 3A 1 Up 12 00 0 0 7 Measuring condition
3. TEPS 7 7 Optical Characteristics RETE 8 8 Precautions of using LCD Modules ss sssssssssssssssssssssesssess essen ennenen ennenen ennes 10 URL www topwaydisplay com gt Document Name LMT121DNEFWD Manual Rev0 1 www topwaysz com Page 2 of 10 TOPWAY General Specification Signal Interface Display Technology Display Mode Screen Size Outline Dimension Active Area Number of dots Dot Pitch Pixel Configuration Backlight Surface Treatment Viewing Direction Operating Temperature Storage Temperature 2 Block Diagram Backlight Circuit BLVCC BLGND BLEN BLADJ D gt Q a 5 S D GND VDD ES LCD Module User Manual LMT121DNEFWD LVDS a Si TFT active matrix TN Type Full Color Transmissive Normal White 12 1 inch Diagonal 276 0x209 0x9 0 mm see Outline DWG for details 246 0x184 5 mm 800x 3 RGB x 600 0 3075x0 3075 mm R G B Vertical Stripe White LED Anti Glare 6 o clock 20 70 C 30 80 C 800 x3 x 600 pixels SVGA Source Driver Source Driver RINO RINO RIN1 RIN1 RIN2 RIN2 RIN3 RIN3 CLKIN CLKIN REV NORM 8BIT 6BIT LVDS interface Document Name LMT121DNEFWD Manual RevO 1 Page 3 of 10 URL www topwaydisplay com www topwaysz com TOPWAY LCD Module User Manual LMT121DNEFWD 3 Input Output Terminals 3 1 TFT Terminals Descriptions 24Bit Mode 18Bit Mode Power Supply GND Power Ground
4. 90 Measuring surroundings Dark room Adjust operating voltage to get optimum contrast at E the center of the display NS B A Left 9 00 NL TA Measuring temperature Ta 25 C X Right 3 00 2 0 2 180 Down 6 00 2 270 Note 3 The definition of contrast ratio Test LCM using SR 3A 1 Note 4 Contrast Luminance When LCD is at White state Definition of Response time Test LCD using BM 7A 2 Ratio CR Luminance When LCD is at Black state The output signals of photo detector are measured Contrast Ratio is measured in optimum common electrode when the input signals are changed from voltage black to white falling time and from white to black rising time respectively The response time is defined as the time interval between the 1096 and 9096 of amplitudes Refer to figure as below Brightness 100 90 t on off Note 5 Note 6 Definition of Color of CIE1931 Coordinate and NTSC Ratio The luminance uniformity is calculated by using following formula ABp Bp Min Bp Max x100 96 Color gamut Bp Max Maximum brightness in 9 measured spots s Area of RGB triangle yy ago Bp Min Minimum brightness in 9 measured spots Area of NTSC triangle Note 7 Measured the luminance of white state at center point URL www topwaydisplay com Document Name LMT121DNEFWD Manual RevO 1 Page 9 of 10 www topwaysz com TOPWAY LCD Module User Manual LMT1
5. C Items 1 11 Symbol EN NM rm Power Voltage Operating Range 5 Electrical Characteristics 5 1 Driving TFT LCD Panel GND 0V VDD 3 3V Top 25 C tem Symbol MIN TYP MAX Unt Note Power supply voltage VDD 30 33 36 V J Power supply current ID 3839 mA Permissible ripple voltage VRP 10 mv Diferentel input voltage Mdl 290 80 a voltage for LVDS receiver nm a H DE m R RR RN LVDS receiver Terminating resistor RT 100 Q Rush current lm j 15 A 1 All black pattern 2 Common mode voltage for LVDS receiver 5 2 LED Backlight Circuit Characteristics BLGND OV Top 25 C ae ee ae ee Light bar operation current p 8 mA 1 o Light bar operation voltage WF 25 33 vf ZR Operating lifetime Hr B0000 Hour ILED 80mA PWM Input Threshold Voltage uaaa i2 l Y VPWIL 04 V PWM Input Frequency f Tew 100 200 10K Hz 1 Backlight construction 2x10 LEDs URL www topwaydisplay com Document Name LMT121DNEFWD Manual RevO 1 www topwaysz com Page 5 of 10 TOPWAY LCD Module User Manual LMT121DNEFWD 5 3 Power supply voltage Sequence ON t lt 10ms 1 VDD dais 45V 90 0 10 Display Signals 2 play 1g ov Backlight signal uo 3 H6 i Ti
6. 21DNEFWD 8 Precautions of using LCD Modules Mounting Mounting must use holes arranged in four corners or four sides The mounting structure so provide even force on to LCD module Uneven force ex Twisted stress should not applied to the module And the case on which a module is mounted should have sufficient strength so that external force is not transmitted directly to the module itis suggested to attach a transparent protective plate to the surface in order to protect the polarizer It should have sufficient strength in order to the resist external force The housing should adopt radiation structure to satisfy the temperature specification Acetic acid type and chlorine type materials for the cover case are not desirable because the former generates corrosive gas of attacking the polarizer at high temperature and the latter causes circuit break by electro chemical reaction Do not touch push or rub the exposed polarizers with glass tweezers or anything harder than HB pencil lead Never rub with dust clothes with chemical treatment Do not touch the surface of polarizer for bare hand or greasy cloth Some cosmetics deteriorate the polarizer When the surface becomes dusty please wipe gently with absorbent cotton or other soft materials like chamois soaks with petroleum benzine Normal hexane is recommended for cleaning the adhesives used to attach front rear polarizers Do not use acetone toluene and alcohol because th
7. E RAI IA ELT 2c A RAR SHENZHEN TOPWAY TECHNOLOGY CO LTD LMI121DNEFWD LCD Module User Manual Prepared by Checked by Approved by Yang Date 2012 08 15 Rev Descriptions Release Date 0 1 Preliminary 2012 08 15 URL www topwaydisplay com Document Name LMT121DNEFWD Manual RevO 1 www topwaysz com Page 1 of 10 TOPWAY LCD Module User Manual LMT121DNEFWD Table of Content Lh General SDSCHICAlIOD esie imapes aA VES EaoL EROS a euEEVEG EVIL E PIHRSANEES EAR 3 EE ie dB T Emm 3 32 TnpubOutput TermNal uus a a a aa cusa lDeustiquc qu a a a E cavDuiduE dE 4 3 1 PEE TONNA NETTE m w 4 3 2 Sisi Rel TE em 4 4 Absolute Maximum Ratings sucuviueqeunu esti ueuside ndo aqu dcuuvs sse ss essen ennenen ennenen eee 5 5 Electrical Characteristics issuseiiniaueS se uM MENU MEQUE eenn eenn I vx ESI NI ennenen eenn 5 5 1 Driving TFT LCD Panel NNMERC 5 5 2 LED Backlight Circuit Characteristics occi itis ito eere annasa a a eraai da Edhar aaia doridan 5 5 9 Power supply voltage Sequence ccccccccceesseececeeeceaeeeeeceeeeeeeaeeeeeeeeeeesaaeeseeeeeeeeeeaesseeeeeeessasaeseeeeeesseaeaeeeeeeessaagasess 6 6 AC Characteristics 11 seene ennenen ennenen ennenen ennenen ennenen ennenen 7 6 1 TANO e T Te e RT Em 7 6 2 jeje UES R2 UR TURN AN PNE ERE
8. e press water damp and sunshine URL www topwaydisplay com Document Name LMT121DNEFWD Manual RevO 1 www topwaysz com Page 10 of 10
9. ey cause chemical damage to the polarizer Wipe off saliva or water drops as soon as possible Their long time contact with polarizer Operating The spike noise causes the mis operation of circuits It should be within the 200mV level Over and under shoot voltage Response time depends on the temperature In lower temperature it becomes longer Brightness depends on the temperature In lower temperature it becomes lower And in lower temperature response time required time that brightness is stable after turned on becomes longer Becareful for condensation at sudden temperature change Condensation makes damage to polarizer or electrical contacted parts And after fading condensation smear or spot will occur When fixed patterns are displayed for a long time remnant image is likely to occur Module has high frequency circuits Sufficient suppression to the electromagnetic interference shall be done by system manufacturers Grounding and shielding methods may be important to minimized the interference Electrostatic Discharge Control oince a module is composed of electronic circuits it is not strong to electrostatic discharge Make certain that treatment persons are connected to ground through wrist band etc And don t touch interface pin directly Strong Light Exposure otrong light exposure causes degradation of polarizer and color filter Storage When storing modules as spares for a long time the following preca
10. ming 0 47ms t1 10ms 0 5 ms t2 lt 50ms Oms lt t3 lt 50ms t4 gt 1000ms t5 gt 200ms t6 200ms 1 When VDD is on but the value is lower than 4 5V a protection circuit may work then the module may not display 2 The signal line is not connected with the module at the end of cable the terminal resistor of 1000 should be added Note1 Display signals D0 D1 D2 D3 and CK must be 0 voltage exclude the VALID period See above sequence diagram If these signals are higher than 0 3 V the internal circuit is damaged lf some of display signals of this product are cut while this product is working even if the signal input to it once again it might not work normally If customer stops the display signals they should cut VDD Note2 When VDD is on it should be set above 4 0V Note3 The backlight power supply voltage should be inputted within the valid period of display and function signals in order to avoid unstable data display URL www topwaydisplay com Document Name LMT121DNEFWD Manual RevO 1 www topwaysz com Page 6 of 10 TOPWAY LCD Module User Manual LMT121DNEFWD 6 AC Characteristics 6 1 Timing Characteristics Remarks LVDS transmitter input Refer to the timing ow characteristics of LVDS 4 transmitter ar 148 55 5kHz typ Horizonta 920 1056 1240 CLK renr 1056 1240 CLK Display period Setup time ow Laas Refer to the timing DE Data characteristics of LVDS
11. utions are necessary Store them in a dark place Do not expose the module to sunlight or fluorescent light Keep the temperature between 5 C and 35 C at normal humidity The polarizer surface should not come in contact with any other object It is recommended that they be stored in the container in which they were shipped Protection Film When the protection film is peeled off static electricity is generated between the film and polarizer This should be peeled off slowly and carefully by people who are electrically grounded and with well ion blown equipment or in such a condition etc The protection film is attached to the polarizer with a small amount of glue If some stress is applied to rub the protection film against the polarizer during the time you peel off the film the glue is apt tore main on the polarizer Please carefully peel off the protection film without rubbing it against the polarizer When the module with protection film attached is stored for a long time sometimes there remains a very small amount of glue still on the polarizer after the protection film is peeled off You can remove the glue easily When the glue remains on the polarizer surface or its vestige is recognized please wipe them off with absorbent cotton waste or other soft material like chamois soaked with normal hexane Transportation The LCD modules should be no falling and violent shocking during transportation and also should avoid excessiv
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