View NL12876AC3901_7873503.PDF datasheet online --- IC-ON-LINE

Datasheet File OCR Text:

tft color lcd module type: nl 12 8 76 a c 3 9 - 01 58 c m ( 23 t yp e ) , w x g a ul t ra wi de v ie w in g an gl e ( h / v 17 0 ) h igh luminance (typ 4 50 cd/m2) 8 bi t r gb lvds specifications ( 2 n d edition) this document is preliminary. all information in this document are subject to change without prior notice nec corporation nec electron devices display device operations unit color lcd division 1 st en g i n e er in g d e p a r t m en t approved t . it o jul. 30,, 200 1 checked prepared a . sa wa da ju l . 30, 200 1 displays & systems tel. +49 7249 910 152 industriestr. 16 fax: +49 7249 4232 d-76298 stutensee e-mail: display@msc-ge.com int ernet: http://www.msc-ge.com preliminary dod- m - 0550 1/ 2 9 f or m u lti m ed ia mon it or a pp li ca t io ns
nec corporation dod - m - 0550 2 / 29 introduction no part of this document shall be copied in any form or by any means without the prior written consent of nec corporation. nec corporation does not assume any liability for infringement of patents, copyrights or other intellectual property rights of third parties by or arising from use of a product described herein or any other liability arising from use of such application. no license, express, implied or otherwise, is granted under any patents, copyrights or other intellectual property rights of nec corporation or of others. while nec corporation has been making continuous effort to enhance the reliability of its products, the possibility of failures cannot be eliminated entirely. to minimize risks of damage to property or injury to person arising from a failure in an nec product, customers must incorporate sufficient safety measures in their design, such as redundancy, fire-containment and anti-failure features. nec products are classified into the following three quality grades: "standard" , "special" , "specific" the "specific" quality grade applies only to applications developed based on a customer designated "quality assurance program" for a specific application. the recommended applications of a product depend on its quality grade, as indicated below. customers must check the quality grade of each application before using it in a particular application. standard: computers, office equipment, communications equipment, test and measurement equipment, audio and visual equipment, home electronic appliances, machine tools, personal electronic equipment and industrial robots special: transportation equipment (automobiles, trains, ships, etc.), traffic control systems, anti-disaster systems, anti-crime systems, safety equipment and medical equipment (not specifically designed for life support) specific: military systems, aircraft, aerospace equipment, submersible repeaters, nuclear reactor control systems, life support systems (medical equipment, etc.) and any other equipment the quality grade of this product is "standard" unless otherwise specified in this document. if customers intend to use this product for applications other than those specified for "standard" quality grade, they should contact nec corporation sales representative in advance. anti-radioactive design is not implemented in this product.
nec corporation dod - m - 0550 3 / 29 contents introduction ................................................................................................................... ....................... 2 1. outline..................................................................................................................... ............................... 5 1.1 structure and principle .................................................................................................... ...... 5 1.2 applications ............................................................................................................... ..................... 5 1.3 features ................................................................................................................... ......................... 5 2. general specifications ...................................................................................................... .......... 6 3. block diagram............................................................................................................... .................... 7 4. detailed specifications ..................................................................................................... .......... 8 4.1 mechanical specifications.................................................................................................. .... 8 4.2 absolute maximum ratings ................................................................................................... .8 4.3 electrical characteristics................................................................................................. .. 9 4.3.1 driving for lcd panel signal processing board ............................................................................ 9 4.3.2 driving for backlight inverter ........................................................................................... ............. 9 4.3.3 supply voltage ripple .................................................................................................... ............... 10 4.3.4 fuses .................................................................................................................... ........................ 10 4.4 supply voltage sequence .................................................................................................... ... 11 4.4.1 sequence for lcd panel signal processing board ....................................................................... 11 4.4.2 sequence for backlight inverter .......................................................................................... ......... 11 4.5 connections and functions for interface pins ........................................................ 12 4.5.1 lcd panel signal processing board ........................................................................................ ..... 12 4.5.2 backlight inverter ....................................................................................................... ................. 13 4.5.3 positions of sockets..................................................................................................... ................. 13 4.5.4 connection between receiver and transmitter for lvds ............................................................. 14 4.6 luminance controls ......................................................................................................... ....... 15 4.6.1 luminance control methods................................................................................................ ......... 15 4.6.2 detail of pwm timing ..................................................................................................... ............ 16 4.7 display colors and input data signals .......................................................................... 17 4.8 display positions .......................................................................................................... .............. 18 4.9 scanning directions........................................................................................................ ......... 18 4.10 input signal timings for lcd panel signal processing board ......................... 19 4.10.1 outline of input signal timings ......................................................................................... ......... 19 4.10.2 detailed input signal timing chart for de mode ........................................................................ 19 4.10.3 timing characteristics.................................................................................................. .............. 20 4.11 optics.................................................................................................................... ........................... 21 4.11.1 optical characteristics................................................................................................. ............... 21 4.11.2 definition of contrast ratio............................................................................................ ............. 22 4.11.3 definition of luminance uniformity ...................................................................................... ..... 22 4.11.4 definition of response times ............................................................................................ .......... 22 4.11.5 definition of viewing angles............................................................................................ .......... 22
nec corporation dod - m - 0550 4 / 29 contents 5. reliability tests ........................................................................................................... ................. 23 6. precautions ................................................................................................................. ...................... 24 6.1 meaning of caution signs................................................................................................... ... 24 6.2 cautions ................................................................................................................... ....................... 24 6.3 attentions ................................................................................................................. ..................... 24 6.3.1 handling of the product .................................................................................................. ............. 24 6.3.2 environment .............................................................................................................. .................. 25 6.3.3 characteristics.......................................................................................................... .................... 25 6.3.4 other .................................................................................................................... ........................ 25 7. outline drawings............................................................................................................ ............... 26 7.1 front view................................................................................................................. ..................... 26 7.2 rear view .................................................................................................................. ...................... 27 revision history ............................................................................................................... .................. 28 1st edition .................................................................................................................... ............................... 28 2nd edition .................................................................................................................... .............................. 28
nec corporation dod - m - 0550 5 / 29 1. outline 1.1 structure and principle nl12876ac39-01 module is composed of the amorphous silicon thin film transistor liquid crystal display (a-si tft lcd) panel structure with driver lsis for driving the tft (thin film transistor) array and a backlight unit. the a-si tft lcd panel structure is injected liquid crystal material into a narrow gap between the tft array glass substrate and a color-filter glass substrate. color (red, green, blue) data signals from a host system (e.g. pc, signal generator, etc.) are modulated into best form for active matrix system by a signal processing board, and sent to the driver lsis which drive the individual tft arrays. the tft array as an electro-optical switch regulates the amount of transmitted light from the backlight assembly, when it is controlled by data signals. color images are created by regulating the amount of transmitted light through the tft array of red, green and blue dots. 1.2 applications ? multimedia monitor 1.3 features ? high luminance ? ultra wide viewing angles (lateral electric field) ? high contrast ? high definition ? 8-bit digital rgb signals ? single link lvds interface ? direct light type ? replaceable backlight unit and inverter
nec corporation dod - m - 0550 6 / 29 2. general specifications display area 501.1 (h) 300.7 (v) mm (typ.) diagonal size of display 58.4 cm (23.0 inches) drive system a-si tft active matrix display color 16,777,216 colors pixel 1,280 (h) 768 (v) pixels pixel arrangement rgb (red dot, green dot, blue dot) vertical stripe dot pitch 0.1305 (h) 0.3915 (v) mm pixel pitch 0.3915 (h) 0.3915 (v) mm module size 528.0 (h) 326.0 (v) 33.0 (d) mm (typ.) weight 2,600 g (typ.) contrast ratio tbd (typ.) viewing angle at the contrast ratio 10:1 ? horizontal: left side 85 (typ.), right side 85 (typ.) ? vertical: up side 85 (typ.), down side 85 (typ.) designed viewing direction ? viewing angle with optimum grayscale ( =2.2): normal axis polarizer surface tbd polarizer pencil-hardness 2h (min.) [by jis k5400] color gamut at lcd panel center 60 % (typ.) [against ntsc color space] response time 30 to 40 ms (typ.) ton + toff luminance 450 cd/m 2 (typ.) signal system single link lvds (receiver: thc63lvd824, thine electronics inc.) [8-bit digital signals for data of rgb colors, dot clock (clk), data enable (de)] supply voltages lcd panel signal processing board: 5.0v backlight inverter: 12.0v backlight direct light type: 12 cold cathode fluorescent lamps replaceable parts ? backlight unit: type no. tbd ? inverter: type no. tbd power consumption at maximum luminance and checkered flag pattern tbd (typ.) 2
nec corporation dod - m - 0550 7 / 29 3. block diagram host fg h-driver v-driver 3,840 lines lcd panel h: 1,280 3 (r,g,b) v: 768 768 lines vcc gnd vddb brtc brti brtp pwsel gndb backlight inverter backlight (direct light type) power supply dc/dc converter n ote 1: gnd is connected to fg (frame ground). gndb is not connected to fg. gnd and gndb should be connected together in customer equipment. lcd module (product) lcd panel signal processing board v-driver da0+ +3.3v da0- controller with lvds da1+ da1- da2+ da2- da3+ da3- ck+ ck- 100 ? 100 ? 100 ? 100 ? 100 ? n ote1 n ote1
nec corporation dod - m - 0550 8 / 29 4. detailed specifications 4.1 mechanical specifications parameter specification unit module size 528.0 0.5 (h) 326.0 0.5 (v) 33.0 0.5 (d) note1 mm display area 501.1 0.5 (h) 300.7 0.5 (v) note1 mm weight 2,600 (typ.), tbd (max.) g note1: see " 7.outline drawings ". 4.2 absolute maximum ratings parameter symbol rating unit remarks lcd panel signal board and driver vcc -0.3 to +6.0 v supply voltage backlight inverter vddb -0.3 to +14 v lcd panel signal board display signals note1 vid -0.3 to 3.4 v ta = 25 c brti signal vibi -0.3 to +1.5 v brtp signal vibp -0.3 to +5.5 v brtc signal vibc -0.3 to +5.5 v input voltage backlight inverter pwsel signal vibs -0.3 to +5.5 v ta = 25 c vddb = 12.0v storage temperature tst -20 to +60 c - topf 0 to +55 c front view surface operating temperature topr 0 to +66 c rear view surface 95 % ta 40 c 85 % 40 < ta 50 c relative humidity note2 rh 70 % 50 < ta 55 c absolute humidity note2 - 78 note3 g/m 3 ta > 55 c note1: display signals are da0+/-, da1+/-, da2+/-, da3+/- and ck+/-. also controller with lvds receiver are worked by +3.3v from dc/dc converter. note2: no condensation note3: ta = 55c, rh = 70% 2
nec corporation dod - m - 0550 9 / 29 4.3 electrical characteristics 4.3.1 driving for lcd panel signal processing board (ta = 25 c) parameter symbol min. typ. max. unit remarks supply voltage vcc 4.8 5.0 5.2 v - supply current icc - tbd note1 1,000 note2 ma vcc = 5.0v input voltage for lvds receiver vidr 0 - 2.4 v - low vtl -100 - - mv differential input threshold voltage for lvds receiver high vth - - +100 mv voc=1.2v note3 note1: checkered flag pattern (by eiaj ed-2522) note2: pattern for maximum current note3: common mode voltage for lvds receiver 4.3.2 driving for backlight inverter (ta = 25 c) parameter symbol min. typ. max. unit remarks supply voltage vddb 11.4 12.0 12.6 v - supply current iddb - tbd tbd m at maximum luminance, vddb = 12.0v note1 brti signal vibi 0 - 1.2 v low vibpl 0 - 0.8 v brtp signal high vibph 2.0 - 5.2 v low vibcl tbd - tbd v brtc signal high vibch tbd - tbd v low vibsl tbd - tbd v input voltage for control system pwsel signal high vibsh tbd - tbd v brti signal iibi tbd - - low iibpl -1,580 - - brtp signal high iibph - - 3,500 low iibcl -810 - - brtc signal high iibch - - 440 low iibsl -810 - - input current for control system pwsel signal high iibsh - - 440 - note1: the power supply lines (vddb and gndb) occurs large ripple voltage (see "4.3.3 supply voltage ripple".) while dimming. there is the possibility that the ripple voltage produces acoustic noise and signal wave noise in audio circuit and so on. put a capacitor (5,000 to 6,000 f) between the power source lines (vddb and gndb) to reduce the noise, if the noise occurred in the circuit. 2
nec corporation dod - m - 0550 10 / 29 4.3.3 supply voltage ripple this product works, even if the ripple voltage levels are beyond the permissible values as following the table, but there might be noise on the display image. supply voltage ripple voltage note1 (measure at input terminal of power supply) unit vcc (for lcd panel signal processing board; 5.0v) 100 mvp-p vddb (for backlight inverter; 12.0v) 200 mvp-p note1: the permissible ripple voltage includes spike noise. 4.3.4 fuses fuse type supplier rating note1 unit remarks tbd a tbd tbd tbd v vcc (for lcd panel signal processing board) tbd a tbd tbd tbd v vddb (for backlight inverter) note1: the power capacity should be more than twice of fuse current ratings. if the power capacity is less than the criteria value, the fuse may not blow, and then nasty smell, smoking and so on may occur.
nec corporation dod - m - 0550 11 / 29 4.4 supply voltage sequence 4.4.1 sequence for lcd panel signal processing board note1: in terms of voltage variation (voltage drop) while vcc rising edge is below 4.8v, a protection circuit may work, and then this product may not work. note2: display signals (da0+/-, da1+/-, da2+/-, da3+/- and ck+/-) with 100 ? (characteristic impedance) must be low or high-impedance, exclude the valid period (see above sequence diagram), in order to avoid that internal circuits is damaged. if 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 stop display signals, they should be cut vcc. 4.4.2 sequence for backlight inverter note1: these are the display signals for lcd panel signal processing board. note2: the backlight power voltage (vddb) should be inputted within the valid period of display signals, in order to avoid unstable data display. note3: the tr should be less than 800ms when brtc terminal [socket: cn202, pin no.: 4] (see "4.5.2 backlight inverter".) is open. valid period off 0ms < t < 35 m s 0ms < t < 35 m s on 4.8v 0v t r <80 m s vcc n ote1 display signals note2 toff > 200 m s display signals note1 vddb tr t > 0 ms n ote3 brtc vibch 10.8v 12.0v valid period n ote2
nec corporation dod - m - 0550 12 / 29 4.5 connections and functions for interface pins 4.5.1 lcd panel signal processing board cn1 socket (module side): fi-seb20p-hf (japan aviation electronics industry limited) adaptable plug: fi-se20m (japan aviation electronics industry limited) pin no. symbol function remarks 1vcc 2vcc power supply 3gnd 4gnd ground - 5d0- 6d0+ pixel data note1 7 gnd ground - 8d1- 9d1+ pixel data note1 10 gnd ground - 11 d2- 12 d2+ pixel data note1 13 gnd ground - 14 ck- 15 ck+ pixel clock note1 16 gnd ground - 17 d3- 18 d3+ pixel data note1 19 gnd 20 gnd ground - note1: twist pair wires with 100 ? (characteristic impedance) should be connected between lcd panel signal processing board and lvds transmitter. 1 2 19 20 cn1: figure of socket
nec corporation dod - m - 0550 13 / 29 4.5.2 backlight inverter cn201 socket: df3-10p-2h (hirose electric co., ltd.) adaptable plug: df3-10s-2c (hirose electric co., ltd.) pin no. symbol function remarks 1 gndb backlight ground 2 gndb backlight ground 3 gndb backlight ground 4 gndb backlight ground 5 gndb backlight ground 6 vddb power supply 7 vddb power supply 8 vddb power supply 9 vddb power supply 10 vddb power supply - cn202 socket: il-z-9pl1-smty (japan aviation electronics industry limited) adaptable plug: il-z-9s-s125c3 (japan aviation electronics industry limited) pin no. symbol function remarks 1 gndb backlight ground 2 n.c. non-connection 3 n.c. non-connection - 4 brtc backlight on/off signal on: high or open, off: low 5 gndb backlight ground - 6 brti luminance control by resistor method or voltage method 7brtp pwm signal note1 8 gndb backlight ground - 9 pwsel select of luminance control signal method note1 note1: see "4.6.1 luminance control methods". 4.5.3 positions of sockets 9 8 2 1 cn202: figure of socket 1 2 9 10 cn201: figure of socket cn1 insert direction 10 1 insert direction cn202 cn201 backlight inverter insert direction 1 9 20 1 lcd panel signal processing board
nec corporation dod - m - 0550 14 / 29 4.5.4 connection between receiver and transmitter for lvds note1: recommended transmitter see the data sheet for thc63lvd823 (thein electronics inc.). r0 r1 r2 r3 r4 r5 r6 r7 g0 g1 g2 g3 g4 g5 g6 g7 b0 b1 b2 b3 b4 b5 b6 b7 de clk vcc (+3.0v) vcc (+5.0v) gnd vcc vcc gnd gnd d0- d0+ gnd d1- d1+ gnd d2- d2+ gnd ck- ck+ gnd d3- d3+ gnd gnd td0 td1 ta0 ta1 ta2 ta3 ta4 ta5 td2 td3 ta6 tb0 tb1 tb2 tb3 tb4 td4 td5 tb5 tb6 tc0 tc1 tc2 tc3 tc6 clk in vcc ta- ta+ tb- tb+ tc- tc+ tclk- tclk+ td- td+ 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 gnd transmitter for lvds thc63lvd823 note1 socket cn1 dc/dc converter lcd panel signal processing board panel driver panel driver host lcd module (product) gnd ra1- ra1+ rb1- rb1+ rc1- rc1+ rclk1- rclk1+ rd1- rd1+ lcd controller receiver for lvds equivalent of thc63lvd824 gnd signal processor vcc 2
nec corporation dod - m - 0550 15 / 29 4.6 luminance controls 4.6.1 luminance control methods method adjustment and luminance ratio pwsel signal brtp signal ? adjustment the variable resistor ( r ) for luminance control should be 10k ? 5%, b curve, 1/10w. minimum point of the resistor is the minimum luminance. also maximum point of the resistor is the maximum luminance. ? luminance ratio note3 resistance luminance ratio 0 k ? 20% (minimum) 10 k ? 100% (maximum) resistor control note1 ? adjustment this control method can carry out continuation adjustment of luminance, if it is adjusted within the rated voltage for brti signal (vibi). ? luminance ratio note3 brti voltage (vibi) luminance ratio 0v 20% (minimum) 1.0v 100% (maximum) voltage control note1 high or open open ? adjustment pulse width modulation (pwm) method works, when pwsel signal is low and pwm signal (brtp signal) is inputted into brtp terminal. the luminance is controlled by duty ratio of brtp signal. ? luminance ratio note3 duty ratio note4 luminance ratio 0.2 20% (minimum) 1.0 100% (maximum) pulse width modulation note1 note2 low pwm signal note1: in case of the resistor control method and the voltage control method, noises may appear on the display image depending on the input signals timing for lcd panel signal processing board. use pwm method, if interference noises appear on the display image! note2: in case brtc signal is high or open, the inverter will stop work when brtp signal is fixed to low. in this case, backlight will not turn on, even if brtp signal is inputted again. this is not out of order. backlight inverter will start to work when power is supplied again. note3: these data are the target values. note4: see "4.6.2 detail of pwm timing". r gndb brti
nec corporation dod - m - 0550 16 / 29 4.6.2 detail of pwm timing (1) timing diagrams ? outline chart ? detail of a part (2) each parameter parameter symbol min. typ. max. unit remarks luminance control frequency 1/tpw 185 255 325 hz note1 duty ratio tpwh/tpw 0.2 - 1.0 - note2 non signal period tpwn 0 - 50 ms note3 note1: see the following formula for luminance control frequency. luminance control frequency = tv (n+0.25) [or (n + 0.75)] n = 1, 2, 3 tv: see "4.10.4 timing characteristics". the interference noise of luminance control frequency and input signal frequency for lcd panel signal processing board may appear on a display. set up luminance control frequency so that the interference noise does not appear! note2: see "4.6.1 luminance control methods". note3: if tpwn is more than 50ms, the backlight will be turned off by a protection circuit for inverter. 0 tpwn 50ms 0 tpwn 50ms 0 tpwn 50ms brtc brtp a tp w tpwh tpwl vibpl vibph
nec corporation dod - m - 0550 17 / 29 4.7 display colors and input data signals this product can display in equivalent to 16,777,216 colors in 256 scale. also the relation between display colors and input data signals is as the following table. data signal (0: low level, 1: high level) display colors r7 r6 r5 r4 r3 r2 r1 r0 g7 g6 g5 g4 g3 g2 g1 g0 b7 b6 b5 b4 b3 b2 b1 b0 basic colors black blue red magenta green cyan yellow white 00000000 00000000 11111111 11111111 00000000 00000000 11111111 11111111 00000000 00000000 00000000 00000000 11111111 11111111 11111111 11111111 00000000 11111111 00000000 11111111 00000000 11111111 00000000 11111111 red scale black dark bright red 00000000 00000001 00000010 : : 11111101 11111110 11111111 00000000 00000000 00000000 : : 00000000 00000000 00000000 00000000 00000000 00000000 : : 00000000 00000000 00000000 green scale black dark bright green 00000000 00000000 00000000 : : 00000000 00000000 00000000 00000000 00000001 00000010 : : 11111101 11111110 11111111 00000000 00000000 00000000 : : 00000000 00000000 00000000 blue scale black dark bright blue 00000000 00000000 00000000 : : 00000000 00000000 00000000 00000000 00000000 00000000 : : 00000000 00000000 00000000 00000000 00000001 00000010 : : 11111101 11111110 11111111
nec corporation dod - m - 0550 18 / 29 4.8 display positions the following table is the coordinates per pixel (see figure of "4.9 scanning directions"). c( 0, 0) c( 1, 0) ? ? ? c( x, 0) ? ? ? c(1278, 0) c(1279, 0) c( 0, 1) c( 1, 1) ? ? ? c( x, 1) ? ? ? c(1278, 1) c(1279, 1) ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? c( 0, y) c( 1, y) ? ? ? c( x, y) ? ? ? c(1278, y) c(1279, y) ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? c( 0,766) c( 0,766) ? ? ? c( x,766) ? ? ? c(1278,766) c(1279,766) c( 0,767) c( 1,767) ? ? ? c( x,767) ? ? ? c(1278,767) c(1279,767) 4.9 scanning directions the following figures are seen from a front view. also the arrow shows the direction of scan. note1: meaning of c (x, y) and d (x, y) c (x, y): the coordinates of the display position (see "4.8 display positions".) d (x, y): the data number of input signal for lcd panel signal processing board c (0,0) d (0,0) c (0,767) d (0,767) c (1279,767) d (1279,767) c (1279,0) d (1279,0)
nec corporation dod - m - 0550 19 / 29 4.10 input signal timings for lcd panel signal processing board 4.10.1 outline of input signal timings ? horizontal signal note1: this diagram indicates virtual signal for set up to timing. ? vertical signal note1: this diagram indicates virtual signal for set up to timing. note2: see "4.10.2 detailed input signal timing chart for de mode" for numeration of pulse. 4.10.2 detailed input signal timing chart for de mode ? outline chart note1: x is data number from 1 to 1278. see "4.9 scanning directions". display period note1 horizontal display period (thd) data enable (de mode) vertical display period (tvd) 1 2 34 768 display period note1 data enable (de mode) de vih 0.5vcc vil clk vih vil data (r0 to r7) (g0 to g7) (b0 to b7) tdes tdeh tdrf tdrf tds tdh tcrf tcrf tch tc 1280 d (0, 0) d (1279, 0) 768 1 d (x, 0) thd tv d a x+1 tdes tder f tderf note1 1 2 d (x, 2) d (0, 2) d (1279, 2) 1688 (typ.) tdeh 1281 d (x, 767) d (0, 767) d (1279, 767) vih 0.5vcc vil t v th n ote1 n ote2
nec corporation dod - m - 0550 20 / 29 ? detail of a part note1: x is data number from 1 to 1278. see "4.9 scanning directions". 4.10.3 timing characteristics parameter note1 symbol min. typ. max. unit remarks frequency (lvds receiver) 1/tc 78.0 81.0 84.0 mhz 12.3 ns (typ.) duty tch/tc - - - - clk rise time, fall time tcrf - - - - setup time tds - - - - clk-data hold time tdh - - - - data rise time, fall time tdrf - - - - note1 cycle th - 1,688 - clk note2, note3 horizontal display period thd 1,280 clk cycle tv - 806 - h vertical (one frame) display period tvd 768 h note3 setup time tdes - - - - clk-de hold time tdeh - - - - de rise time, fall time tderf - - - - note1 note1: see the data sheet of lvds transmitter. note2: "th" must keep the fluctuation within 1 clk, because of avoidance of image sticking. note3: definition of units is as follows. tc = 1clk, th = 1h vih 0.5vcc vil clk tds tdh tdrf tdrf tc tcrf tderf vih vil data (r0 to r7) (g0 to g7) (b0 to b7) de tch tcrf tdeh tdes tderf tdeh tdes vih vil d (0, 0) d (x, 0) d (1279, 0) 1 x+1 1280 1281 2
nec corporation dod - m - 0550 21 / 29 4.11 optics 4.11.1 optical characteristics parameter note1 symbol condition min. typ. max. unit remarks contrast ratio cr white/black at center r = 0 , l = 0 , u = 0 , d = 0 200 tbd - - note2 luminance l white at center r = 0 , l = 0 , u = 0 , d = 0 tbd 450 - cd/m 2 - luminance uniformity lu - - tbd 1.30 - note3 w white (x, y) - 0.300, 0.315 - - r red (x, y) - tbd, tbd - - g green (x, y) - tbd, tbd - - chromaticity bblue (x, y) - tbd, tbd - - color gamut c r = 0 , l = 0 , u = 0 , d = 0 at center, against ntsc color space 50 60 - % - ton black to white - tbd tbd ms response time note4 toff white to black - tbd tbd ms note5 right r u = 0 , d = 0 -85 - left l u = 0 , d = 0 -85 - up u r = 0 , l = 0 -85 - viewing angle cr =10 down d r = 0 , l = 0 -85 - note6 note1: measurement conditions are as follows. ta = 25 c, vcc = 3.3v, vddb = 12.0v optical characteristics are measured at luminance saturation after 20minutes from working the product, in the dark room. also measurement method for luminance is as follows. note2: see "4.11.2 definition of contrast ratio". note3: see "4.11.3 definition of luminance uniformity". note4: product surface temperature: topf = 25 c note5: see "4.11.4 definition of response times". note6: see "4.11.5 definition of viewing angles". 1 photodetector (topcon bm-5a) lcd module (product) 50cm
nec corporation dod - m - 0550 22 / 29 4.11.2 definition of contrast ratio the contrast ratio is calculated by using the following formula. luminance of white screen luminance of black screen 4.11.3 definition of luminance uniformity the luminance uniformity is calculated by using following formula. maximum luminance from to minimum luminance from to the luminance is measured at near the 5 points shown below. 4.11.4 definition of response times response time is measured, the luminance changes from "black" to "white", or "white" to "black" on the same screen point, by photo-detector. ton is the time it takes the luminance change from 10% up to 90%. also toff is the time it takes the luminance change from 90% down to 10% (see the following diagram.). 4.11.5 definition of viewing angles 106 320 533 80 240 400 contrast ratio (cr) = luminance uniformity (lu) = left upper lower n ormal axis (perpendicular) u d r l 12 o?clock right 100% 90% 10 % 0% ton toff luminance white black
nec corporation dod - m - 0550 23 / 29 5. reliability tests test item condition judgment high temperature and humidity (operation) 60 2 c, rh = 60%, 240hours display data is black. no display malfunctions note1 heat cycle (operation) 0 3 c 1hour 55 3 c 1hour 50cycles, 4hours/cycle display data is black. no display malfunctions note1 thermal shock (non operation) -20 3 c 30minutes 60 3 c 30minutes 100cycles, 30minutes/cycle temperature transition time is within 5 minutes. no display malfunctions note1 vibration (non operation) 5 to 100hz, 11.76m/s 2 1 minute/cycle x, y, z direction 10 times each directions no display malfunctions note1 no physical damages mechanical shock (non operation) 294m/ s 2 , 11ms x, y, z direction 3 times each directions no display malfunctions note1 no physical damages esd (operation) 150pf, 150 ? , 10kv 9 places on a panel surface note2 10 times each places at 1 sec interval no display malfunctions note1 dust (operation) 15 kinds of dust (by jis-z8901) 15 seconds stir 8 times repeat at 1 hour interval no display malfunctions note1 note1: display functions are checked under the same conditions as product inspection. note2: see the following figure for discharge points.
nec corporation dod - m - 0550 24 / 29 6. precautions 6.1 meaning of caution signs the following caution signs have very important meaning. be sure to read "6.2 cautions", after understanding this contents! this sign has the meaning that customer will get an electrical shock, if customer has wrong operations. this sign has the meaning that customer will be injured by himself, if customer has wrong operations. 6.2 cautions do not touch high voltage part of the inverter while turned on! danger of an electrical shock. ? ? ? ? pay attention to burn injury for the working backlight! it may be over 35 c from ambient temperature. ? ? ? ? do not shock and press the lcd panel and the backlight! danger of breaking, because they are made of glass. (shock: to be not greater 294m/s 2 and to be not greater 11ms, pressure: to be not greater 19.6n) 6.3 attentions 6.3.1 handling of the product take hold of both ends without touch the circuit board when customer pulls out products (lcd modules) from inner packing box. if customer touches it, products may be broken down or out of adjustment, because of stress to mounting parts. do not hook cables nor pull connection cables such as flexible cable and so on, for fear of damage. if customer puts down the product temporarily, the product puts on flat subsoil as a display side turns down. take the measures of electrostatic discharge such as earth band, ionic shower and so on, when customer deals with the product, because products may be damaged by electrostatic. the torque for mounting screws must never exceed 0.39n ? m. higher torque values might result in distortion of the bezel. do not press or rub on the sensitive display surface. if customer clean on the panel surface, nec corporation recommends using the cloth with ethanolic liquid. do not push-pull the interface connectors while the product is working, because wrong power sequence may break down the product. do not give the shock or vibration to the normal direction of a display surface, because image quality may fall.
nec corporation dod - m - 0550 25 / 29 6.3.2 environment do not operate in dewdrop atmosphere and corrosive gases. do not operate or store in high temperature or high humidity atmosphere. keep the product in antistatic pouch in room temperature, because of avoidance for dusts and sunlight, if customer stores the product. do not operate in high magnetic field. circuit boards may be broken down by it. use an original protection sheet on the product surface (polarizer). adhesive type protection sheet should be avoided, because it may change color or properties of the polarizer. 6.3.3 characteristics the following items are neither defects nor failures. response time, luminance and color may be changed by ambient temperature. the lcd may be seemed luminance non-uniformity, flicker, vertical seam or small spot by display patterns. optical characteristics (e.g. luminance, display uniformity, etc.) gradually is going to change depending on operating time, and especially low temperature, because the lcd has cold cathode fluorescent lamps. do not display the fixed pattern for a long time because it may cause image sticking. use a screen saver, if the fixed pattern is displayed on the screen. the display color may be changed by viewing angle because of the use of condenser sheet in the backlight unit. the luminance may be changed by voltage variation (voltage drop), even if power source applies recommended voltage to backlight inverter. optical characteristics may be changed by input signal timings. 6.3.4 other all gnd, gndb, vcc and vddb terminals should be used without a non-connected line. do not disassemble a product or adjust volume without permission of nec corporation. see 'replacement manual for backlight', if customer would like to replace backlight lamps. pay attention not to insert waste materials inside of products, if customer uses screwnails. pack the product with original shipping package, because of avoidance of some damages during transportation, when customer returns it to nec corporation for repair and so on.
nec corporation dod - m - 0550 26 / 29 7. outline drawings 7.1 front view 14 .0 +0 . 5 -0 . 5 150 .0 +0 .5 -0 .5 200 .0 +0 .5 -0 .5 150 .0 +0 . 5 -0 . 5 (act ive area ) 300 .7 +0 .5 -0 .5 (beze l open ing area ) 305 .6 +0 .5 -0 .5 326 .0 +0 .5 -0 .5 33 .0 +0 .5 -0 .5 (12 .7 ) (13 .4 ) 150 .0 +0 .5 -0 .5 (act ive area ) 501 .1 +0 .5 -0 .5 (be ze l open ing area ) 506 .0 +0 .5 -0 .5 528 .0 +0 .5 -0 .5 14 .0 +0 . 5 -0 . 5 200 .0 +0 .5 -0 .5 150 .0 +0 .5 -0 .5 8 - ( m 3 ) 3 . 8
nec corporation dod - m - 0550 27 / 29 7.2 rear view 100 .0 +0 .5 -0 .5 (184 .7 ) (84 .7 ) b b a a a a sec b - b (62 .0 ) 80 .0 +0 .5 -0 .5 60 .0 +0 .5 -0 .5 4.0 +0 .5 -0 .5 5.0 +0 .5 -0 .5 4.0 +0 .5 -0 .5 m3 10 .0 +0 .5 -0 .5 de ta i l a a a 80 .0 +0 .5 -0 .5 60 .0 +0 .5 -0 .5 60 .0 +0 .5 -0 .5 a a a 20 .0 +0 .5 -0 .5 a a a a a 100 .0 +0 .5 -0 .5 a a 80 .0 +0 .5 -0 .5 (2 0 .0 ) 26 .0 +0 . 5 -0 . 5 (172 .2 ) 47 .0 +0 . 5 -0 . 5 (99 .0 ) 31 .0 +0 .5 -0 .5 (232 .0 )
nec c orporation dod - m - 0550 28 / 29 revision history the inside of latest specifications is revis ed to the clerical error , undecided mater (tbd, etc.) and the major improvement of previous edition . only a changed part such as function s, characteristic value and so on that may affect a design of customers, are described especially below . edition document number prepared date revision contents and signature 1st edition dod - m - 0290 apr. 6, 2001 revision contents new issue 2nd edition dod - m - 0550 jul. 30, 2001 revision contents change part (before-1st edition ? after-2nd edition) (1) page 6/28 2. general specifications module size 530.0 (h) 5 329.0 (v) 5 36.0 (d) mm (typ.) signal system 1port lvds (thine electronics inc. thc63lvdf84a) backlight direct light type: 16 cold cathode fluorescent lamps ? page 6/29 2. general specifications module size 528.0 (h) 5 326.0 (v) 5 33.0 (d) mm (typ.) signal system single link lvds (receiver: thc63lvd824, thine electronics inc.) backlight direct light type: 12 cold cathode fluorescent lamps (2) page 8/28 4.1 mechanical specifications module size 530.0 1.0 (h) 329.0 1.0 (v) 36.0 1.0 (d) ? page 8/29 4.1 mechanical specifications module size 528.0 0.5 (h) 326.0 0.5 (v) 33.0 0.5 (d) (3) page 9/28 4.3.1 driving for lcd panel signal processing board supply current icc tbd note1 tbd note2 ma ? page 9/29 4.3.1 driving for lcd panel signal processing board supply current icc tbd note1 1,000 note2 ma approved by a. okamoto checked by prepared by a. sawada writer
nec c orporation dod - m - 0550 29 / 29 parameter note1 symbol min. typ. max. unit remarks frequency (lvds receiver ) 1/tc 78.0 81.0 84.0 mhz 12.34 ns (typ.) duty tch/ tc clk rise, fall tcrf setup timing tds clk-data hold timing tdh data rise, fall tdrf cycle period thc horizontal display period thd cycle tvc vertical (one frame) display period tvd setup timing tes clk-de hold timing teh de rise, fall terf note2 - note1: all parameters should be kept within the specified range. note2: see the data sheet of lvds transmitter. parameter note1 symbol min. typ. max. unit remarks frequency (lvds receiver ) 1/tc 78.0 81.0 84.0 mhz 12.3 ns (typ.) duty tch/ tc - - - - clk rise time, fall time tcrf - - - - setup time tds - - - - clk-data hold time tdh - - - - data rise time, fall time tdrf - - - - note1 cycle th - 1,688 - clk note2, note3 horizontal display period thd 1,280 clk cycle tv - 806 - h vertical (one frame) display period tvd 768 h note3 setup time tdes - - - - clk-de hold time tdeh - - - - de rise time, fall time tderf - - - - note1 note1: see the data sheet of lvds transmitter. note2: " th" must keep the fluctuation within 1 clk, because of avoidance of image sticking. note3: definition of units is as follows. revision history edition document number prepared date revision contents and writer 2nd edition dod - m - 0550 jul. 30, 2001 (4) page 14/28 4.5.4 connection between receiver and transmitter for lvds transmitter for lvds thc63lvdm83a receiver for lvds equivalent of thc63lvdf84a ? page 14/29 4.5.4 connection between receiver and transmitter for lvds transmitter for lvds thc63lvd823 receiver for lvds equivalent of thc63lvd824 (5) page 20/28 4.10.3 timing characteristics ? page 20/29 4.10.3 timing characteristics approved by checked by prepared by signature of writer a. sawada t. ito

▲Up To Search▲

Price & Availability of NL12876AC3901

	To Download NL12876AC3901 Datasheet File
If you can't view the Datasheet, Please click here to try to view without PDF Reader .