 |
|
| If you can't view the Datasheet, Please click here to try to view without PDF Reader . |
|
|
|
| If you can't view the Datasheet, Please click here to try to view without PDF Reader . |
|
|
| Datasheet File OCR Text: |
| description the nl6488ac30-12 is tft (thin film transistor) active matrix color liquid crystal display (lcd) comprising amorphous silicon tft attached to each signal electrode, a driving circuit, and a backlight. the 24 cm diagonal display area contains 640 480 pixels and can display 4096 colors simultaneously. by utilizing one lamp / edge-light type backlight, a very thin profile design and low power consumption have been achieved. features a thin and light weight a high contrast ratio, wide color gamut a hi-speed response a low power consumption a incorporated edge light type backlight (inverter-less) a data enable function applications a notebook personal computer (pc), word processor a display terminals for control system a new media a control board for nc machine a monitor for process controller data sheet nl6448ac30 - 12 tft color lcd module 1995 ? 24 cm (9.4 type), 640 480 pixels 4096 colors, incorporated one lamp/edge-light type backlight (inverter-less) document no. en0009ej1v1ds00 date published december 1995 m printed in japan
2 nl6448ac30 - 12 structure and functions a tft color lcd module comprises a tft lcd panel, lsis for driving liquid crystal, and the backlight. the tft lcd panel is composed of a tft array glass substrate superimposed on a color filter glass substrate with liquid crystal filled in the narrow gap between two substrates. the backlight apparatus is located on the backside of the lcd panel. rgb (red, green, blue) data signals are sent to lcd panel drivers after modulation into suitable forms for active matrix addressing through signal processor. each of the liquid crystal cells acts as an electro-optical switch that controls the light transmission from the backlight by a signal applied to a signal electrode through the tft switch. block diagram level shift drivers signal processor lcd timing controller power supply circuit supply voltages for lsis h-driver h-driver v-driver backlight tft lcd panel (640(h) 480(v)) r-data g-data r-data clk hsync vsync de mode v cc vhv vccoffo outline of characteristics (at room temperature) display area 192(h) 144(v) mm drive system a-si tft active matrix display colors 4096 colors number of pixels 640 480 pixels pixel arrangement rgb vertical stripe pixel pitch 0.30(h) 0.30(v) mm module size 241.8(h) 178.8(v) 10 max.(d) mm weight 480 g (typ.) contrast ratio 150 : 1 (typ.) viewing angle (more than the contrast ratio of 10 : 1) horizontal : 45 (typ. left side, right side) vertical : 25 (typ. up side), 25 (typ. down side) designed viewing direction upper direction (wider viewing angle without image reversal) color gamut 45 % (typ. center, to ntsc) response time 40 msec. (max.), "white" to "black" luminance 70 cd / m 2 (typ.) signal system 4-bit digital rgb signals, synchronous signals (hsync, vsync), dot clock (clk) supply voltage 5 v (logic, lcd driving) backlight cold cathode type one fluorescent lamp, inverter-less power consumption 2.7 w (typ.) 3 nl6448ac30 - 12 item specification unit module size 241.8 1(h) 178.8 1(v) 10.0 max.(d) mm display area 192(h) 144(v) (diagonal size 24 cm) mm number of pixels 640(h) 480(v) pixel dot pitch 0.10(h) 0.30(v) mm pixel pitch 0.30(h) 0.30(v) mm pixel arrangement rgb(red, green, blue) vertical stripe display colors 4096 color weight 500 (max.) g absolute maximum ratings general specifications parameter symbol rating unit remarks supply voltage v cc C 0.3 to + 6.5 v input voltage v i C 0.3 to v cc + 0.3 v storage temp. t st C20 to 60 ? c operating temp. t op 0 to 50 ? c module surface * 95 % relative humidity CC ta = 40 ? c 85 % relative humidity CC ta = 50 ? c no condensation ?? ?? humidity absolute humidity shall not exceed ta = 50? c, 85 % relative humidity level. CC ta > 50 ? c ta = 25 ? c * measured at center of display area electrical characteristics (1) logic, lcd driving parameter symbol min. typ. max. unit remarks supply voltage v cc 4.75 5.0 5.25 v logic input "l" v il 0 CC 0.8 v ttl logic input "h" v ih 2.2 CC v cc v ttl supply current i cc CC 200 350 ma v cc = 5.0 v note ta = 25 c (2) backlight parameter symbol min. typ. max. unit remarks lamp current i l CC 3.7 CC marms lamp voltage v l CC 4 5 0 CC vr m s lamp turn on voltage v s CC 1200 CC vrms oscillator frequency f t 50 54 58 khz note ta = 25 c note : at dot-checkered pattern 70 cd / m 2 note : recommended value of "f t " ? f t is within the specification. and ? f t = CCCCC (2n-1) if f t is out of the recommended value, interference between f t frequency and hsync frequency may cause beat on the display. th : hsync period n : a natural number (1, 2, 3, ????) 4th 1 4 nl6448ac30 - 12 supply voltage sequence * 1 the supply voltage of the external driver for input signals should be the same as v cc . * 2 in the case of vccoffo = low level, please keep whole signals low level or high impedance. * 3 when the backlight turns on before lcd operation or the lcd operation turns off before the backlight turns off, the display may momentarily become white. v cc v cc vcd module buffer 0< 0< 0< 0< 2t v < 0< * 1 v cc * 2 vccoffo * 2 signals * 3 backlight signals : clk, hsync, vsync, mode, de, r0~r3, g0~g3, b0~b3 interface pin connection (1) interface signals, power supply connector : df9-31p-1v ??? cn1 supplier : hirose electric co., ltd pin no. symbol function 1 gnd signal ground 2 n.c. 1) 3 b0 blue data (lsb) 4 b1 blue data 5 b2 blue data 6 gnd signal ground 7 b3 blue data (msb) 8 n.c. 1) 9 g0 green data (lsb) 10 g1 green data 11 gnd signal ground 12 g2 green data 13 g3 green data (lsb) 14 v cc power supply 15 v cc power supply 16 vccoffo v cc on / off signal pin no. symbol function 17 n.c. 1) 18 r0 red data (lsb) 19 gnd signal ground 20 r1 red data 21 r2 red data 22 r3 red data (msb) 23 de data enable 24 gnd signal ground 25 clk dot clock 26 hsync horizontal sync. 27 vsync vertical sync. 28 gnd signal ground 29 gnd signal ground 30 mode timing mode select 31 n.c. 1) (2) backlight connector : bhr-03vs-1 ??? cn2 supplier : j. s. t trading company, ltd 1) do not connect anything to n. c. pin. pin no. symbol function 1 hvh high voltage terminal 2n. c. 3 gnd backlight ground 5 nl6448ac30 - 12 (3) connector location upper side lower side < rear view > < pin arrangement of cn2 >< pin arrangement of cn1 > cn1 cn2 1 2 1 3 31 3 2 4 30 pin description symbol function r0 C r3 g0 C g3 display data b0 C b3 hsync horizontal sync. vsync vertical sync. clk dot clock de data enable mode timing mode select vccoffo v cc on / off signal v cc + 5.0 v ( 5 %) gnd logic ground description 4-bit digital signals for each of rgb primary colors horizontal synchronous signal vertical synchronous signal timing signal for display data. module strobes the display data at the falling edge of clk. the signal that defines the graphic data that is to be displayed on the screen. when mode = l, the function of this pin is ignored. (keep de high or low) when mode = h, the period of de = h is the display period of the module. mode = h : de mode (data enable function is active) mode = l : fixed mode (data enable function is ignored) vccoffo = h : power on inside of the module vccoffo = l : power off inside of the module power supply for logic and lcd driving ground for v cc 6 nl6448ac30 - 12 display colors vs. input data signals data signals (0 : low level, 1 : high level) r3 r2 r1 r0 g3 g2 g1 g0 b3 b2 b1 b0 000000000000 000000001111 111100000000 111100001111 000011110000 000011111111 111111110000 111111111111 000000000000 000100000000 001000000000 110100000000 111000000000 111100000000 000000000000 000000010000 000000100000 000011010000 000011100000 000011110000 000000000000 000000000001 000000000010 000000001101 000000001110 000000001111 display black blue red magenta green cyan yellow white black dark - bright red black dark - bright green black dark - bright blue - - - basic colors red grayscale blue grayscale green grayscale note : colors are developed in combination with 4-bit signal (16 steps in grayscale) of each primary red, green, and blue color. this process can result in up to 4096 (16 16 16) colors. 7 nl6448ac30 - 12 input signal timing (1) input signal specifications parameter symbol clk frequency 1 / tc duty tch / tc rise, fall tcrf hsync period th display period thd front-porch thf pulse width thp * ) back-porch thb * ) * ) thp+thb clk-hsync timing thch hsync-clk timing thcs hsync-vsync timing tvh vsync-hsync timing tvs rise, fall thrf vsync period tv display period tvd front-porch tvf pulse width tvp * ) back-porch tvb * ) * ) thp+thb rise, fall data clk-data timing tds data-clk timing tdh rise, fall tdrf de de-clk tining tes clk-de tining teh rise, fall terf r0 C r3 r0 C r3 r0 C r3 min. typ. max. unit remarks 21.0 25.175 29.0 mhz 39.722 ns (typ.) 0.4 0.5 0.6 CC CC 1 0 n s 30.0 31.778 33.6 m s 31.469 khz (typ.) CC 8 0 0 CC c l k 640 clk 25.422 m s CC 16 CC clk fixed timing mode 0 16 CC clk de mode 10 96 140 clk fixed timing mode 10 96 CC clk de mode 4 48 134 clk fixed timing mode 4 48 CC clk de mode 144 clk fixed timing mode 14 144 CC clk de mode 1 2 CC CC n s 8CCCCns 1 5 CC CC n s 1 5 CC CC n s CC CC 1 0 n s 16.0 16.683 17.2 ms 59.94 hz (typ.) CC 5 2 5 CC h 480 h 15.253 ms CC 12 CC h fixed timing mode 0 12 CC h de mode 1 2 29 h fixed timing mode 1 2 CC h de mode 4 31 32 h fixed timing mode 4 31 CC h de mode 33 h fixed timing mode 6 33 CC h de mode CC CC 1 0 n s 8CCCCns 1 2 CC CC n s CC CC 1 0 n s 8 CC CC ns de mode 1 2 CC CC n s CC CC 1 0 n s note : all the parameters should be kept within the specified range. 8 nl6448ac30 - 12 (2) definition of input signal timing 9 nl6448ac30 - 12 clk de hsync vsync hsync data (r0 ?r3) (g0 ?g3) (b0 ?b3) 1.5 v 1.5 v v ih * v il * 1.5 v v ih * v il * 1.5 v v ih * v il * 1.5 v v ih * v il * 1.5 v v ih * v il * 1.5 v tvh tvs tvrf thrf thch thcs terf teh tes tdrf terf tdh tds tcrf tcrf tch tc v ih = 2.2 v (min.) to v cc (max.) v il = 0 v (min.) to 0.8 v (max.) * 10 nl6448ac30 - 12 (3) input signal timing chart a) fixed timing mode vsync hsync hsync hsync hsync clk r0 ?r3 g0 ?g3 b0 ?b3 r0 ?r3 g0 ?g3 b0 ?b3 r0 ?r3 g0 ?g3 b0 ?b3 2h (min.) 4h (min.) 33h (fixed) 480h (fixed) 12h 1h 10clk (min.) 4clk (min.) 144clk (fixed) 640clk (fixed) 16clk 1clk 1 2 3 33 34 513 513 34 514 515 514 1 525 d(x,0) d(x,y) d(0,y) d(0,y) d(1,y) d(639,y) d(1,y) d(x,y) d(638,y) d(639,y) d(x,478) d(x,479) invalid invalid invalid invalid invalid invalid 1 2 144 145 784 785 800 1 (note : y = 0 to 479) (note : x = 0 to 639) 11 nl6448ac30 - 12 b) de mode invalid invalid d(x,0) d(x,y) d(x,479) (note : x = 0 to 639) (note : y = 0 to 479) invalid invalid d(0,y) d(1,y) d(x,y) d(638,y) d(639,y) invalid invalid d(0,y) d(1,y) d(639,y) 1 2 144 145 784 785 800 1 1h tvp tvb trf 480h (fixed) 1 123 1clk thp thb 640clk (fixed) thf vsync hsync de hsync de r0 ?r3 g0 ?g3 b0 ?b3 r0 ?r3 g0 ?g3 b0 ?b3 r0 ?r3 g0 ?g3 b0 ?b3 de clk 12 nl6448ac30 - 12 (4) display position of input data --- d (0, 0) d (1, 0) --- d (x, 0) --- d (638, 0) d (639, 0) d (0, 1) d (1, 1) --- d (x, 1) --- d (638, 1) d (639, 1) --- --- d (0, y) d (1, y) --- d (x, y) --- d (638, y) d (639, y) --- --- d (0, 478) d (1, 478) --- d (x, 478) --- d (638, 478) d (639, 478) d (0, 479) d (1, 479) --- d (x, 479) --- d (638, 479) d (639, 479) --- --- --- --- --- --- --- --- --- --- --- --- --- 13 nl6448ac30 - 12 general caution (1) caution when taking out the module q pick the pouch only, when taking out module from a shipping package. (2) cautions for handling the module q as the electrostatic discharges may break the lcd module, handle the lcd module with care. peel a protection sheet off from the lcd panel surface as slowly as possible. w as the lcd panel and backlight element are made from fragile glass material, impulse and pressure to the lcd module should be avoided. e as the surface of polarizer is very soft and easily scratched, use a soft dry cloth without chemicals for cleaning. r do not pull the interface connectors in or out while the lcd module is operating. t put the module display side down on a flat horizontal plane. y handle connectors and cables with care. (3) cautions for the operation q when the module is operating, do not lose clk, hsync, or vsync signals. if any one of these signals is lost, the lcd panel would be damaged. w obey the supply voltage sequence. if wrong sequence is applied, the module would be damaged. (4) cautions for the atmosphere q dew drop atmosphere should be avoided. w do not store and / or operate the lcd module in a high temperature and / or humidity atmosphere. storage in an electro-conductive polymer packing pouch and under relatively low temperature atmosphere are recommended. (5) caution for the module characteristics q do not apply fixed pattern data signal to the lcd module at product aging. applying fixed pattern for a long time may cause image sticking. (6) other cautions q do not disassemble and / or re-assemble lcd module. w do not re-adjust variable resistor or switch etc. e when returning the module for repair or etc., please pack the module not to be broken. we recommend to use the original shipping packages. liquid crystal display has the following specific characteristics. these are not defects or malfunctions. the display condition of lcd module may be affected by the ambient temperature. the lcd module uses cold cathode tubes for backlighting. optical characteristics, like luminance or uniformity, will change during life time. uneven brightness and/or small spots may be noticed depending display patterns. 14 nl6448ac30 - 12 outline drawing (unit in mm) front view NL6448AC30-12 made in japan (2.8) (2.1) a 0.1 max. detail "a" detail "b" b (2.4) 2.5 0.3 + _ + _ + _ + _ + _ + _ 10 max. 229.7 (7.9) (9.3) (2.0) (2.0) 2-r. 7 0.5 (2.5) (2.5) (gnd) (hvh) (4.5) (60) (4.5) (123.6) 132.6 0.3 + _ + _ (126.0) 234.0 0.3 (3.1) 241.8 1.0 (192.0) (display area) (202.1) (bezel opening) center of display area 2- 3.4 0.5 f (83.3) (6.1) 166.6 0.3 178.8 1.0 (144.0) (display area) (152.2) (bezel opening) 15 nl6448ac30 - 12 rear view (46.0) (9.9) (5.7) (9.9) (5.7) (2.7) (6.9) (6.9) (2.7) (4.7) 2-r4.2 (9.0) (2.0) (6.7) (2.0) (9.0) (6.7) cn2 : backlight connector cn1 : interface connector < lower side > < upper side > no part of this document may be copied or reproduced 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 device described herein or any other liability arising from use of such device. no license, either express, implied or otherwise, is granted under any patents, copyrights or other intellectual property rights of nec corporation or of others. nl6448ac30 - 12 |
Price & Availability of NL6448AC30-12
 |
|
|
|
|
All Rights Reserved © IC-ON-LINE 2003 - 2022 |
| [Add Bookmark] [Contact Us] [Link exchange] [Privacy policy] |
|
Mirror Sites : [www.datasheet.hk]
[www.maxim4u.com] [www.ic-on-line.cn]
[www.ic-on-line.com] [www.ic-on-line.net]
[www.alldatasheet.com.cn]
[www.gdcy.com]
[www.gdcy.net] |