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product specification 1/28 LC420WU2 liquid crystal display ver. 0.0 nov. 14, 2006 title 42.0? wuxga tft lcd buyer model supplier lg.philips lcd co., ltd. *model LC420WU2 *when you obtain standard approval, please use the above model name without suffix suffix sla1 (rohs verified) for approval specification tv product development dept. lg. philips lcd co., ltd k.w.yang / engineer prepared by reviewed by signature date approved by please return 1 copy for your confirmation with your signature and comments. / / / signature date approved by ) ) ( ( final specification preliminary specification b. y. park / manager j.h.yoon / senior.manager
product specification 2/28 LC420WU2 liquid crystal display ver. 0.0 nov. 14, 2006 contents number item page cover 1 3-2 interface connections 8 3-3 signal timing specifications 12 9-6 handling precautions for protection film 28 14 9 precautions 27 9-1 mounting precautions 27 9-2 operating precautions 27 9-3 electrostatic discharge control 28 9-4 precautions for strong light exposure 28 9-5 storage 28 3-5 color data reference 7-2 emc 25 8 packing 26 8-1 designation of lot mark 26 8-2 packing form 26 contents 2 record of revisions 3 1 general description 4 2 absolute maximum ratings 5 3 electrical specifications 6 3-1 electrical characteristics 6 3-4 signal timing waveforms 13 3-6 power sequence 15 4 optical specifications 17 5 mechanical characteristics 21 6 reliability 24 7 international standards 25 7-1 safety 25
product specification 3/28 LC420WU2 liquid crystal display ver. 0.0 nov. 14, 2006 revision no. revision date page description 0.0 nov.14, 2006 - preliminary specification(first draft) record of revisions
product specification 4/28 LC420WU2 liquid crystal display ver. 0.0 nov. 14, 2006 the LC420WU2 is a color active matrix liquid crystal display with an integral cold cathode fluorescent lamp(ccfl) backlight system. the matrix employs a-si thin film transi s tor as the active el e ment. it is a transmissive display type which is operating in the normally black mode. it has a 42.02 inch diagonally measured active display area with wuxga resolution (1080 vertical by 1920 horizontal pixel array). each pixel is divided into red, green and blue sub-pixels or dots which are arrayed in vertical stripes. gray scale or the luminance of the sub-pixel color is determined with a 8-bit gray scale signal for each dot. therefore, it can present a palette of more than 16.7m(true) colors. it has been designed to apply the 8-bit 2-port lvds interface. it is intended to support lcd tv, pctv where high brightness, super wide viewing angle, high color gamut, high color depth and fast response time are important. general features active screen size 42.02 inches(1067.31mm) diagonal outline dimension 983.0(h) x 576.0 (v) x 51.0 mm(d) (typ.) pixel pitch 0.4845 mm x 0.4845 mm pixel format 1920 horiz. by 1080 vert. pixels, rgb stripe arrangement color depth 8-bit, 16.7 m colors viewing angle (cr>10) viewing angle free ( r/l 178 (typ.), u/d 178 (typ.)) luminance, white 550 cd/m 2 (center 1point ,typ.) power consumption total 167.3 w (typ.) (logic=7.3 w, inverter=160w [i bl =6.0 ma] ) weight 13.0k g (typ.) display mode transmissive mode, normally black surface treatment hard coating(3h), anti-glare treatm ent of the front polarizer (haze 13%) 1. general description cn1 (51pin) lvds 2port source driver circuit tft - lcd panel (1920 rgb 1080 pixels) g1 s1 s1920 g1080 back light assembly (20 ccfl) mini-lvds(rgb) timing controller [lvds rx + dcr + odc integrated] gate driver circuit +24.0v gnd eeprom power circuit block sda scl +12.0v sdram mem ctrl rgb vbr-a dcr enable vbr_out 10cns (high) 10cns (high) inverter (cn2,cn3) ext_pwm
product specification 5/28 LC420WU2 liquid crystal display ver. 0.0 nov. 14, 2006 the following items are maximum values which, if exceeded, may cause faulty operation or damage to the lcd module. table 1. absolute maximum ratings note : 1. temperature and relative humidity range are shown in the figure below. wet bulb temperature should be 39 c max. and no condensation of water. 2. gravity mura can be guaranteed under 40 c condition. 2. absolute maximum ratings value parameter min max unit lcm backlight inverter v bl +21.6 +28.0 v dc brightness control voltage v br 0 +5.0 v dc operating temperature t op 0 +50 c note 1 v lcd -0.3 +14.0 v dc at 25 2 c on/off control voltage von/off -0.3 +5.25 v dc storage temperature t st -20 +50 c operating ambient humidity h op 10 90 %rh storage humidity h st 10 90 %rh power input voltage remark symbol
product specification 6/28 LC420WU2 liquid crystal display ver. 0.0 nov. 14, 2006 it requires two power inputs. one is employed to power for the lcd circuit. the other is used for the ccfl backlight and inverter circuit. table 2. electrical characteristics note : 1. the specified cur r ent and power consumption are under the v lcd =12.0v, 25 2 c, f v =60hz condition whereas mosaic pattern(8 x 6) is displayed and f v is the frame frequency. 2. the cur r ent is specified at the maximum cur r ent pattern. 3. the duration of rush current is about 2ms and rising time of power input is 1ms (min.). value parameter symbol min typ max circuit : power input voltage v lcd 11.4 12.0 12.6 v dc - 610 793 ma 1 power consumption p lcd - 7.3 9.5 watt 1 rush current i rush - - 3.0 a 3 power input current i lcd - 820 1066 ma 2 unit note mosaic pattern(8 x 6) white : 255gray black : 0gray 3. electrical specifications 3-1. electrical characteristics
product specification 7/28 LC420WU2 liquid crystal display ver. 0.0 nov. 14, 2006 notes : 1. electrical characteristics are determined after the unit has been ?on? and stable for approximately 120 minutes at 25 2 c. the specified current and power consumption are under the typical supply input voltage 24v and vbr 1.65v, it is total power consumption. the ripple voltage of the power supply input voltage is under 0.4 vp-p. lpl recommend input voltage is 24.0v 5%. 2. brightness control. this v br voltage control brightness. 3. lpl recommend that the pwm freq. is synchronized with the treble harmonic of vsync signal of system. 4. specified values are for a single lamp which is aligned horizontally. the life time is determined as the time which luminance of the lamp is 50% compared to that of initial value at the typical/ maximum lamp current ( boost = 1.65v / 3.3v) on condition of continuous operating at 25 2 c 5. the duration of rush current is about 10ms. minimum brightness (90%) 0v maximum brightness (110%) 3.3v function vbr voltage table 3. electrical characteristics (continued) values parameter symbol min typ max inverter : 1 unloading input voltage 28 vdc power supply input voltage ripple -0.2 0.2 vp-p 1 extvbr-b = 100% boost = 1.65v 1 high level 2.5 - 5.0 v dc 0.0 boost =1.65v 50,000 hrs 4 life time boost = 3.3v 40,000 pulse duty(pwm) (burst mode) low level - 0.6 v dc i o-max 6.5 7.0 7.5 ma(rms) boost = max i o-typ 5.5 6.0 6.5 ma(rms) boost = typ -6.77.3 a power supply input current ibl -7.98.5 a extvbr-b = 100% boost = 3.3v 1 245 lamp voltage (extvbr-b = 100%) vout 480 610 760 v(rms) boost = typ power supply input current(in-rush) irush - - 13 a vbl = 22.8v extvbr-b=100% boost = 1.65v 5 brightness adj(burst mode) extvbr-b 20 100 % pwm frequency for ntsc & pal ntsc/pal 145 hz 3 lamp current (extvbr-b = 100%) i o-min 4.5 5.0 5.5 ma(rms) boost = min power supply input voltage vbl 22.8 24.0 26.2 vdc power consumption pbl - 160 175 w 1 brightness adjust vbr 0.0 - 3.3 vdc 2 input voltage for control system signals on v on 2.5 - 5.0 vdc on/off off v off -0.3 0.0 0.8 vdc unit notes
product specification 8/28 LC420WU2 liquid crystal display ver. 0.0 nov. 14, 2006 table 4. module connector(cn1) pin configuration - lcd connector(cn1): fi-r51s-hf(manufactured by jae) or kn25-51p-0.5sh(manufactured by hirose) - mating connector : fi-r51hl(jae) or compatible note : 1. the pin no 44 is lcd test option. ?agp? (auto generation lcm operates pattern) or ?nsb ? (no signal black) is case that lvds signals are out of frequency or abnormal condition in spite of 12 volt power supply. lpl recommends ?nsb?. ( agp : ?vcc? or ?open? / nsb : ?gnd? ) 2. all gnd(ground) pins should be connected together to the lcd module?s metal frame. 3. all v lcd (power input) pins should be connected together. 4. all input levels of lvds signals are based on the iea 664 standard. 5. specific pins(pin no. #1~#10) are used for internal data process of the lcd module. if not used, these pins are no connection. this lcd module employs two kinds of interface c onnection, a 51-pin connector is used for the module electronics and two 12-pin connectors are used for the integral backlight system. 3-2-1. lcd module 3-2. interface connections no symbol description no symbol description 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 gnd - re0n gnd second channel 0- second channel 0+ second channel 1- second channel 1+ second channel 2- second channel 2+ ground second clock channel c- second clock channel c+ ground second channel 3- second channel 3+ no connection(res for 10bits) no connection(res for 10bits) gnd gnd ground ground ground nc power supply +12.0v power supply +12.0v power supply +12.0v power supply +12.0v re0p re1n re1p re2n re2p gnd reclkn reclkp gnd re3n re3p reserved (nc) reserved (nc) gnd gnd gnd gnd gnd nc v lcd v lcd v lcd v lcd - - 2 reserved (nc) no connection(reserved for i 2 c) 11 gnd ground 12 ro0n first channel 0- 13 ro0p first channel 0+ 14 ro1n first channel 1- 15 ro1p first channel 1+ 21 gnd ground 22 ro3n first channel 3- 23 ro3p first channel 3+ 24 reserved (nc) no connection(res for 10bits) 25 reserved (nc) no connection(res for 10bits) 3 reserved (nc) no connection(reserved for i 2 c) 4 reserved (nc) no connection 5 reserved (nc) no connection 6 reserved (nc) no connection 7 reserved (nc) no connection 8 reserved (nc) no connection 9 reserved (nc) no connection 10 reserved (nc) no connection 16 ro2n first channel 2- 17 ro2n first channel 2+ 18 gnd ground 19 roclkn first clock channel c- 20 roclkp first clock channel c+ 26 gnd gnd 1 reserved(nc) no connection
product specification 9/28 LC420WU2 liquid crystal display ver. 0.0 nov. 14, 2006 table 5. required signal assignment for flat link (thine : thc63lvd823) transmitter(pin7=?l?) note: 1. the lcd module uses a 100 ohm( ? ) resistor between positive and negative lines of each receiver input. 2. refer to lvds transmitter data sheet for detail descriptions. (thc63lvd823 or compatible) 3. ?7? means msb and ?0? means lsb at r,g,b pixel data. r10/r20 r11/r21 r12/r22 r13/r23 r14/r24 r15/r25 r16/r26 r17/r27 g10/g20 g11/g21 g12/g22 g13/g23 g14/g24 g15/g25 g16/g26 g17/g27 b10/b20 b11/b21 b12/b22 b13/b23 b14/b24 b15/b25 b16/b26 b17/b27 hsync vsync data enable clock host system 24 bit ta1-ta1+ tb1-/tb1+ tc1-/tc1+ tclk1- tclk1+ td1-/td1+ ta2-/ta2+ tb2-/tb2+ tc2-/tc2+ tclk2- tclk2+ td2-/td2+ thc63lvd823 or compatible rxo0- rxo0+ rxo1- rxo1+ rxo2- rxo2+ rxoclk- rxoclk+ rxo3- rxo3+ rxe0- rxe0+ rxe1- rxe1+ rxe2- rxe2+ rxeclkin- rxeclkin+ rxe3- rxe3+ lg / dism dcr enable fi-r51s-hf timing controller lcd module ground 49 48 47 46 40 39 44 43 42 41 37 35 31 30 36 34 32 29 28 27 100? 100? 100? 100? 100? 100? 100? 100? 100? 100? 12 13 14 15 16 17 19 20 22 23 28 29 30 31 32 33 35 36 38 39 7 10 53/81 54/82 57/83 58/84 59/85 60/86 51/79 52/80 63/91 64/92 65/93 66/94 67/95 68/96 61/89 62/90 73/99 74/100 75/1 76/2 77/5 78/6 69/97 70/98 7 8 9 10
product specification 10 /28 LC420WU2 liquid crystal display ver. 0.0 nov. 14, 2006 table 6. required signal assignment for flat link (thine : thc63lvd823) transmitter(pin7=?h?) r10/r20 r11/r21 r12/r22 r13/r23 r14/r24 r15/r25 r16/r26 r17/r27 g10/g20 g11/g21 g12/g22 g13/g23 g14/g24 g15/g25 g16/g26 g17/g27 b10/b20 b11/b21 b12/b22 b13/b23 b14/b24 b15/b25 b16/b26 b17/b27 hsync vsync data enable clock host system 24 bit ta1+/ta1- tb1+/tb1- tc1+/tc1- tclk1+ tclk1- td1+/td1- ta2+/ta2- tb2+/tb2- tc2+/tc2- tclk2+ tclk2- td2+/td2 thc63lvd823 or compatible 12 13 14 15 16 17 19 20 22 23 28 29 30 31 32 33 35 36 38 39 7 10 100? 100? 100? 100? 100? 48 49 46 47 39 40 34 32 29 fi-r51s-hf timing controller lcd module vcc 51/79 52/80 53/81 54/82 57/83 58/84 59/85 60/86 61/89 62/90 63/91 64/92 65/93 66/94 67/95 68/96 69/97 70/98 73/99 74/100 75/1 76/2 77/5 78/6 7 8 9 10 note: 1. the lcd module uses a 100 ohm( ? ) resistor between positive and negative lines of each receiver input. 2. refer to lvds transmitter data sheet for detail descriptions. (thc63lvd823 or compatible) 3. ?7? means msb and ?0? means lsb at r,g,b pixel data. 43 44 41 42 36 37 35 31 30 27 28 100? 100? 100? rxo0-/rxo0+ rxo1-/rxo1+ rxo2-/rxo2+ rxoclk- rxoclk+ rxo3-/rxo3+ rxe0-/rxe0+ rxe1-/rxe1+ rxe2-/rxe2+ rxeclkin- rxeclkin+ rxe3-/rxe3+ lg / dism dcr enable
product specification 11 /28 LC420WU2 liquid crystal display ver. 0.0 nov. 14, 2006 master -inverter connector : s14b-ph-smc (manufactured by jst) or equivalent - mating connector : phr-14 or equivalent table 7. inverter connector pin configulation 3-2-2. backlight inverter rear view of lcm pcb pcb ? ? 14 1 ? ? 1 12 pin no symbol description master slave v bl v bl v bl v bl v bl v bl gnd gnd gnd gnd gnd 11 boost 0.0v ~ 3.3v v br don?t care 2 12 v on/off 0.0v ~ 5.0v on/off don?t care 3, open/high for b/l on as default - 14 gnd power gnd gnd - 5 v bl v bl v bl v bl gnd gnd gnd gnd gnd external pwm note 1 v bl power supply +24.0v 2 v bl power supply +24.0v 3 v bl power supply +24.0v 4 v bl power supply +24.0v 5 v bl power supply +24.0v 6 gnd power gnd 7 gnd power gnd 4 8 gnd power gnd 9 gnd power gnd 10 gnd power gnd 1 13 extv br - b 0.0v ~ 3.3v slave -inverter connector : s12b-ph-smc (manufactured by jst) or equivalent -mating connector : phr-12 or equivalent note : 1. gnd should be connected to the l cd module?s metal frame. 2. minimum brightness : boost = 0.0v maximum brightness : boost = 3.3v ?open? : boost = 1.65v 3. rising edge : lamp ?on? / falling edge : lamp ?off? 4. pin#13 can be opened. ( if pin #13 is open , extvbr-b is 100% ) 5. pin#14 can be opened. (even though pin #14 is gnd or no connection, there is no e ffect on inverter operating) 6. each impedance of pin #11, 12 and 13 is 33 [m ? ] , 37 [k ? ] and 596 [k ? ].
product specification 12 /28 LC420WU2 liquid crystal display ver. 0.0 nov. 14, 2006 table 8. timing table for ntsc & pal table 8 shows the signal timing required at the input of the lvds transmitter. all of the interface signal timing should be satisfied with the following specification for normal operation. 3-3. signal timing specifications note: 1. the performance of the electro-optical characteristics may be influenced by variance of the vertical refresh rate. 2. above timing tables are only valid for de mode. [ de (data enable) only ] item symbol min typ max unit note period t clk 12.98 13.47 16.77 ns frequency - 59.63 74.25 77 mhz =148.5/2 period t hp 1060 1100 1300 t clk horizontal valid t hv 960 960 960 t clk horizontal blank - t hp- t hv 140 t hp- t hv frequency f h 55.25 67.5 68.9 khz width t wh -22-t clk horizontal back porch t hbp 12 88 - period t vp 1091 1125 1149 t hp vertical valid t vv - 1080 t hp vertical blank - t vp- t vv 45 t vp- t vv t hp frequency f v 47 60 63 hz width t wv -12-t hp horizontal front porch t hfp 14 30 - t hp vertical back porch t vbp 625-hz vertical front porch t vfp 38- hsync vsync note 1) pal : 47~53hz ntsc : 57~63hz dclk
product specification 13 /28 LC420WU2 liquid crystal display ver. 0.0 nov. 14, 2006 0.7vdd 0.3vdd t clk invalid data valid data pixel 0,0 pixel 2,0 pixel 1,0 pixel 3,0 de(data enable) valid data invalid data invalid data invalid data 0.5 vdd t ht de(data enable) dclk first data second data de, data 3-4. signal timing waveforms t hv t vv t vt 1 1080
product specification 14 /28 LC420WU2 liquid crystal display ver. 0.0 nov. 14, 2006 the brightness of each primary color(red,green,blue) is based on the 8-bit gray scale data input for the color. the higher binary input, the brighter the color. table 9 provides a reference for color versus data input. table 9. color data reference input color data red msb lsb green msb lsb blue msb lsb black 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 red (255) green (255) blue (255) cyan magenta yellow white red (000) dark 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 green (000) dark 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 green (001) 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 0 0 0 0 0 0 0 0 green ... ... ... ... green (254) 0 0 0 0 0 0 0 0 1 1 1 1 1 1 1 0 0 0 0 0 0 0 0 0 green (255) 0 0 0 0 0 0 0 0 1 1 1 1 1 1 1 1 0 0 0 0 0 0 0 0 red (001) 0 0 0 0 0 0 0 1 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 red ... ... ... ... red (254) 1 1 1 1 1 1 1 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 red (255) 1 1 1 1 1 1 1 1 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 blue (000) dark blue (001) 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 ... ... ... ... blue (254) 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 1 1 1 1 1 1 0 blue (255) 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 basic color 0 0 0 0 0 0 0 0 1 1 1 1 1 1 1 1 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 1 1 1 1 1 1 1 0 0 0 0 0 0 0 0 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 0 0 0 0 0 0 0 0 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 0 0 0 0 0 0 0 0 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 color r7 r6 r5 r4 r3 r2 r1 r0 g7 g6 g5 g4 g3 g2 g1 g0 b7 b6 b5 b4 b3 b2 b1 b0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 blue 3-5. color data reference
product specification 15 /28 LC420WU2 liquid crystal display ver. 0.0 nov. 14, 2006 3-6. power sequence 3-6-1. lcd driving circuit value parameter min typ max t1 0.5 - 10 ms t2 0.5 - 50 ms t6 0.01 - 300 ms t7 1.0 - - s t8 0 < t8 < t2 ms t9 0 < t9 < t5 ms t3 200 - - ms ms t4 200 - - t5 0.5 - 50 ms unit table 10. power sequence interface signal (tx) power for lamp power supply for lcd v lcd 10% 0v 90% 90% 10% t 1 t 2 t 5 t 6 t 7 t 3 t 4 valid data lamp on t 8 t 9 option signal (dcr_enable) note : 1. please avoid floating state of interface signal at invalid period. 2. when the interface signal is invalid, be sure to pull down the power supply v lcd to 0v. 3. the case when the t2/t5 exceed maximum specification, it operates protection pattern(black pattern) till valid signal inputted. there is no reliability problem. 4. the t3/t4 is recommended value, the case when failed to meet a minimum specification, abnormal display would be shown. there is no reliability problem. 5. if the on time of option signal(dism or ai_enable) prec edes the on time of power(vlcd),check the lcd logic power(vcc) is under 0.8v, otherwise it will be happened abnormal display. 6. flicker would come out when power on-off(t7=under 1s) is continuously tested over several ten-times
product specification 16 /28 LC420WU2 liquid crystal display ver. 0.0 nov. 14, 2006 3-6-2. sequence for inverter power supply for inverter v on/off boost v bl 10% 0v 90% t 1 t 2 t 3 t 2 0.7v t 4 24v (typ.) t 5 lamp on t 4 t7 1000ms (min) 1000ms (min) extv br-b : 1. lamp on at pwm rising edge and lamp off at pwm falling edge. 2. extvbr-b has same sequence with boost table 11. power sequence for inverter 3-6-3. deep condition for inverter v bl (typ.) x 0.85 0 v v bl : 24v t6 notes : 1. t1 describes rising time of 0v to 24v and is not applied at restarting time. 2. t4(max) is less than t2. 3. in t7 section, extv br-b should be duty 100%. 4. when v bl [24v] is supplied always, there is no reliability problem. values parameter min typ max remarks t1 20 - - ms 1 t4 0 - t6 - - 10 ms v bl (typ) x 0.85 t7 1000 - - ms 3 ms 2 t5 10 - - ms t2 500 - - ms t3 200 - - ms units
product specification 17 /28 LC420WU2 liquid crystal display ver. 0.0 nov. 14, 2006 table 12. optical characteristics ta= 25 2 c , v lcd =12.0v, f v =60hz, dclk=148.5mhz vbr=1.65v lcd module optical stage(x,y) pritchard 880 or equivalent 50cm value parameter symbol min typ max unit note cr 600 800 - white 5p - - 1.6 3 gray-to-gray rise + decay tr r+ tr d -1 8 32 2.2 1 surface luminance, white l wh 400 550 - cd/m 2 2 luminance variation black 5p - - 1.7 g to g -8 16 ms 4 red green blue white viewing angle (cr>10) x axis, right( =0 ) r 85 89 - x axis, left ( =180 ) y axis, up ( =90 ) y axis, down ( =270 ) gray scale 6 l 85 89 - u 85 89 - d 85 89 - degree 5 gx 0.279 gy 0.611 bx 0.146 by 0.062 wx 0.285 wy 0.293 rx 0.638 ry 0.340 typ +0.03 typ -0.03 color coordinates [cie1931] response time (gray-to-gray) contrast ratio fig. 1 optical characteristic measurement equipment and method optical characteristics are determined after the unit ha s been ?on? and stable for approximately 2 hrs in a dark environment at 25 2 c. the specified optical values are measured at an approximate 50cm distance from the lcd surface on condition that viewing angle of and equal to 0 . fig. 1 shows additional information conc erning the measurement equipment and method. 4. optical specification
product specification 18 /28 LC420WU2 liquid crystal display ver. 0.0 nov. 14, 2006 note : 1. contrast ratio(cr) is defined mathematically as : surface luminance with all white pixels contrast ratio = surface luminance with all black pixels measure position : center 1-point 2. surface luminance( l wh ) is the luminance value measured at an approximate 50cm distance from the center 1-point of lcd surface as all pixels displaying white. see fig. 2 for more information. 3. the variation of surface luminance , white and black are defined as : white(5p) = maximum(l on1 ,l on2 , l on3 , l on4 , l on5 ) / minimum(l on1 ,l on2 , l on3 , l on4 , l on5 ) black(5p) = maximum(l on1 ,l on2 , l on3 , l on4 , l on5 ) / minimum(l on1 ,l on2 , l on3 , l on4 , l on5 ) where l on1 to l on5 are the luminance with all pixels displaying white at 5 locations . for more information, see the fig. 2. 4. response time is defined as the required time fo r the transition from g(n) to g(m) (rise time, tr r ) and from g(m) to g(n) (decay time, tr d ). for additional information see the fig. 3. (n product specification 19 /28 LC420WU2 liquid crystal display ver. 0.0 nov. 14, 2006 fig. 3 response time response time is defined as the following figure and sh all be measured by switching the input signal for ?gray(n)? and ?gray(m)?. measuring point for surface luminance & measuring point for luminance variation. fig. 2 5 points for luminance measure a : h / 4 mm b : v / 4 mm h : 930.24 mm v : 523.26 mm @ h,v : active area h a v b gray(m) gray(n) t r r t r d 100 90 10 0 optical response n,m = 0(black)~255(white), n product specification 20 /28 LC420WU2 liquid crystal display ver. 0.0 nov. 14, 2006 fig. 4 viewing angle dimension of viewing angle range normal y e = 0 , right = 180 , left = 270 , down = 90 , up
product specification 21 /28 LC420WU2 liquid crystal display ver. 0.0 nov. 14, 2006 5. mechanical characteristics table 14. mechanical characteristics item value horizontal 983.0 mm vertical 576.0 mm vertical 531.0 mm vertical 523.26 mm weight 13.0kg (typ.), 14.0kg (max.) surface treatment hard coating(3h) anti-glare treatment of the front polarizer (haze 13%) depth 51.0 mm horizontal 939.0 mm horizontal 930.24 mm active display area bezel area outline dimension note : 1.please refer to a mechanic drawing in terms of tolerance at the next page. the contents provide general mechanical characteristics. in addition the figures in the next page are detailed mechanical drawing of the lcd module.
product specification 22 /28 LC420WU2 liquid crystal display ver. 0.0 nov. 14, 2006
product specification 23 /28 LC420WU2 liquid crystal display ver. 0.0 nov. 14, 2006
product specification 24 /28 LC420WU2 liquid crystal display ver. 0.0 nov. 14, 2006 no. test item condition 1 high temperature storage test ta= 50 c 240h 2 low temperature storage test ta= -20 c 240h 3 high temperature operation test ta= 50 c 50%rh 240h 4 low temperature operation test ta= 0 c 240h 5 vibration test (operating) wave form : random vibration level : 1.0grms bandwidth : 10-300hz duration : x,y,z, 30 min one time each direction 6 shock test (operating) shock level : 50grms waveform : half sine wave, 11ms direction : x, y, z one time each direction 7 humidity condition operation ta= 40 c ,90%rh 8 altitude operating storage / shipment 0 - 14,000 feet(4267.2m) 0 - 40,000 feet(12192m) 6. reliability table 15. environment test condition
product specification 25 /28 LC420WU2 liquid crystal display ver. 0.0 nov. 14, 2006 7. international standards 7-1. safety a) ul 60065, 7 th edition, dated june 30, 2003, underwriters laboratories, inc., standard for audio, video and similar electronic apparatus. b) can/csa c22.2, no. 60065:03, canadian standards association, standard for audio, video and similar electronic apparatus. c) iec60065:2001, 7 th edition cb-scheme and en 60065:2002, safety requirements for audio, video and similar electronic apparatus.. 7-2. emc a) ansi c63.4 ?methods of measurement of radio- noise emissions from low-voltage electrical and electrical equipment in the range of 9khz to 40ghz. ?american national standards institute(ansi), 1992 b) cispr22 ?limits and methods of measurement of radio interface characteristics of information technology equipment.? international special committee on radio interference. c) en 55022 ?limits and methods of measurement of radio interface characteristics of information technology equipment.? european committee for electrotechnical standardization.(cenelec), 1998 ( including a1: 2000 )
product specification 26 /28 LC420WU2 liquid crystal display ver. 0.0 nov. 14, 2006 8-1. designation of lot mark a) lot mark abcdefghi jklm a,b,c : size(inch) d : year e : month f : panel code g : factory code h : assembly code i,j,k,l,m : serial no. note 1. year b) location of lot mark 2. month mark year 6 2006 2 2002 3 2003 4 2004 5 2005 0 2000 1 2001 7 987 2007 999897 serial no. is printed on the label. the label is attached to the backside of the lcd module. this is subject to change without prior notice. 8-2. packing form a) package quantity in one pallet : 12 pcs b) pallet size : 1150 mm x 1000 mm x 820 mm. b nov mark month a oct 6 jun 7 jul 8 aug 9 sep 4 apr 5 may c 421 dec mar feb jan 8. packing
product specification 27 /28 LC420WU2 liquid crystal display ver. 0.0 nov. 14, 2006 please pay attention to the followings when you use this tft lcd module. 9-1. mounting precautions (1) you must mount a module using holes arranged in four corners or four sides. (2) you should consider the mounting structure so that uneven force (ex. twisted stress) is 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. (3) please attach the surface transparent protective plat e to the surface in order to protect the polarizer. transparent protective plate should have sufficient strength in order to the resist external force. (4) you should adopt radiation structure to satisfy the temperature specification. (5) 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. (6) do not touch, push or rub the exposed polarizers with glass, tweezers or anything harder than hb pencil lead. and please do not rub with dust clothes with chemical treatment. do not touch the surface of polarizer for bare hand or greasy cloth.(some cosmetics are detrimental to the polarizer.) (7) 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 they cause chemical damage to the polarizer. (8) wipe off saliva or water drops as soon as possib le. their long time contact with polarizer causes deformations and color fading. (9) do not open the case because inside circuits do not have sufficient strength. 9-2. operating precautions (1) the spike noise causes the mis-operation of circuits. it should be lower than following voltage : v= 200mv(over and under shoot voltage) (2) response time depends on the temperature.(in lower temperature, it becomes longer.) (3) 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. (4) be careful for condensation at sudden temperature change. condensation makes damage to polarizer or electrical contacted parts. and after fading condensation, smear or spot will occur. (5) when fixed patterns are displayed for a long time, remnant image is likely to occur. (6) 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. (7) please do not give any mechanical and/or acoustical impact to lcm. otherwise, lcm can?t be operated its full characteristics perfectly. (8) a screw which is fastened up the steels should be a machine screw. (if not, it causes metallic foreign material and deal lcm a fatal blow) (9) please do not set lcd on its edge. 9. precautions
product specification 28 /28 LC420WU2 liquid crystal display ver. 0.0 nov. 14, 2006 since a module is composed of electronic circuits, it is not strong to electrostatic discharge. make certain that treatment persons are connected to ground through wris t band etc. and don?t touch interface pin directly. 9-3. electrostatic discharge control strong light exposure causes degradation of polarizer and color filter. 9-4. precautions for strong light exposure when storing modules as spares for a long time, the following precautions are necessary. (1) 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. (2) 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. 9-5. storage 9-6. handling precautions for protection film (1) the protection film is attached to the bezel with a small masking tape . when the protection film is peeled off, static electricity is generated betw een 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. (2) when the module with protection film attached is st ored for a long time, sometimes there remains a very small amount of glue still on the bezel af ter the protection film is peeled off. (3) you can remove the glue easily. when the glue remains on the bezel surface or its vestige is recognized, please wipe them off with absorbent cotton waste or other soft material like chamois soaked with normal- hexane.

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