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product specification 1/ 33 lc420wx7 liquid crystal display ver. 1.0 title 42.0? wxga tft lcd buyer model supplier lg.philips lcd co., ltd. *model lc420wx7 *when you obtain standard approval, please use the above model name without suffix suffix sla1 (rohs verified) ) ) ( ( final specification preliminary specification for approval specification tv products development dept. lg. philips lcd co., ltd s. w kwag / engineer prepared by y.h choi / engineer reviewed by y. s baek / s. manager signature date approved by please return 1 copy for your confirmation with your signature and comments. / / / signature date approved by
product specification 2/ 33 lc420wx7 liquid crystal display ver. 1.0 number item page cover 1 3-2 interface connections 8 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 9-6 handling precautions for protection film 28 3-5 color input 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 3-3 signal timing specifications 12 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 contents
product specification 3/ 33 lc420wx7 liquid crystal display ver. 1.0 record of revisions revision no. revision date page description 1.0 apr, 30, 2007 - cas version 1.0 release final specification
product specification 4/ 33 lc420wx7 liquid crystal display ver. 1.0 1. general description cn1 (30pin) lvds 5pair select source driver circuit tft - lcd panel (1366 rgb 768 pixels) g1 s1 s1366 g768 lvds rx (receiver) dcr controller odc controller timing controller gate driver circuit sdram eeprom (lut) power circuit block sda scl mem ctrl rgb #9 +12.0v #10 v br_ext #27 v br_out #28 the lc420wx7 is a color active matrix liquid crystal display with an integral external electrode fluorescent lamp(eefl) backlight system. the matrix employs a- si thin film transistor as the active el e ment. it is a transmissive type display operating in the normally black mode. it has a 42.0 inch diagonally measured active display area with wxga resolution (768 vertical by 136 6 horizontal pixel ar r ay). each pixel is divided into red, green and blue sub-pixels or dots which are arranged 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, thus presenting a palette of more than 16.7m(true) colors. it has been designed to apply the 8-bit 1-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. mini-lvds(rgb) dcr enable general features active screen size 42.02 inches(1067.308mm) diagonal outline dimension 983 mm(h) x 576 mm(v) x 51 mm(d) (typ.) pixel pitch 0.227mm x 0.681mm x rgb pixel format 1366 horiz. by 768 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 500 cd/m 2 (center 1-point) (typ.) power consumption total 166.0 w (typ.) (logic=6.00 w, inverter=160w [v br-a = 1.65v] ) weight 10.5 kg (typ.) display operating mode transmissive mode, normally black surface treatment hard coating(3h), anti-glare treatm ent of the front polarizer (haze 13%) back light assembly 3pinx1cn(high) 3pinx1cn(high) +24.0v, gnd, vbr-a, vbr-b status inverter(master) inverter(slave) +24.0v, gnd
product specification 5/ 33 lc420wx7 liquid crystal display ver. 1.0 table 1. absolute maximum ratings value parameter min max unit lcd circuit inverter v bl 21.6 28.0 v [dc] on/off brightness v br 0.0 +5.0 v [dc] operating temperature t op 0 +50 c note 1 v lcd +8.0 +14.0 v [dc] at 25 2 c v off / v on -0.3 +5.5 v [dc] storage temperature t st -20 +60 c operating ambient humidity h op 10 90 %rh storage humidity h st 10 90 %rh inverter control voltage power input voltage remark symbol 2. absolute maximum ratings the following items are maximum values which, if exceeded, may cause faulty operation or damage to the lcd module. 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. 90% 10 20 30 40 50 60 70 80 0 -20 0 10 20 30 40 50 dry bulb temperature [ c ] wet bulb temperature [ c ] storage operation humidity [(%)rh] 10% 40% 60% 60
product specification 6/ 33 lc420wx7 liquid crystal display ver. 1.0 3. electrical specifications 3-1. electrical characteristics it requires two power inputs. one is employed to power for the lcd circuit. the other input power for the eefl/backlight is to power inverter. 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.). mosaic pattern(8 x 6) white : 255gray black : 0gray value parameter symbol min typ max circuit : power input voltage v lcd 11.4 12.0 12.6 v [dc] - 500 650 ma 1 power consumption p lcd 6.00 7.8 watt 1 rush current i rush - - 3.0 a 3 power input current i lcd - 550 715 ma 2 unit note
product specification 7/ 33 lc420wx7 liquid crystal display ver. 1.0 table 3. electrical characteristics (continue) values parameter symbol min typ max inverter : 1 power supply input voltage ripple - - 0.5 vp-p 1 -6.7 7.2 av br-a = 1.65v ? 1 after aging ibl_a before aging ibl_b power consumption v br-a 0.0 1.65 3.3 vdc -7.2 7.7 av br-a = 3.30v ? 1 power supply input current -7.7 8.2 av br-a = 3.30v ? 2 discharge stabilization time ts 3min 4 life time 50,000 hrs 5 pbl - 160 172 w v br-a = 1.65v ? 1 -7.2 7.7 av br-a = 1.65v ? 2 power supply input current (in-rush) irush --8.6a v bl = 22.8v v br-b = 3.3v v br-a = 1.65v lamp : power supply input voltage v bl 22.8 24.0 25.2 vdc brightness adjust v br-b 0.0 - 3.3 vdc 3 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 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 24vand v br (v br-a : 1.65v & v br-b :3.3v), it is total power consumption. the ripple voltage of the power supply input volt age is under 0.5 vp-p. lpl recommend input voltage is 24.0v 5%. 2. electrical characteristics are determined within 30 minutes at 25 2 c. the specified currents are under the typical supply input voltage 24v. 3. brightness control. this v br-b voltage control brightness. maximum duty (100%) 3.3v minimum duty (20%) 0v function v br-b voltage function v br-b voltage . 4. the brightness of the lamp after lighted for 5minutes is defined as 100%. t s is the time required for the brightness of the center of the lamp to be not less than 95% at typical current. the screen of lcd module may be partially dark by the time the brightness of lamp is stable after turn on. 5. 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 lamp current (v br-a : 1.65v & v br-b :3.3v), on condition of continuous operating at 25 2 c 6. the duration of rush current is about 10ms.
product specification 8/ 33 lc420wx7 liquid crystal display ver. 1.0 3-2. interface connections this lcd module employs two kinds of interface connection , a 30-pin connector is used for the module electronics and 14-pin (master)and 12-pin(slave) connectors ar e used for the integral backlight system. pin no. symbol description note 2 v lcd power supply +12.0v 11 gnd ground 12 ra- lvds receiver signal(-) 13 ra+ lvds receiver signal(+) 14 gnd ground 15 rb- lvds receiver signal(-) 21 rclk- lvds receiver clock signal(-) 22 rclk+ lvds receiver clock signal(+) 23 gnd ground 24 rd- lvds receiver signal(-) 25 rd+ lvds receiver signal(+) 28 v br_ext external vbr input from system to lcd module 29 gnd ground 30 gnd ground 3 3 v lcd power supply +12.0v 4 v lcd power supply +12.0v 5 gnd ground 6 gnd ground 7 gnd ground 8 gnd ground 9 select select lvds data format 1 10 dcr enable dynamic cr enable ( ? l ? = disable , ? h ? = enable ) 2 16 rb+ lvds receiver signal(+) 17 gnd ground 18 rc- lvds receiver signal(-) 19 rc+ lvds receiver signal(+) 20 gnd ground 26 gnd ground 27 v br_out vbr output form lcd module 1 v lcd power supply +12.0v note: 1. the pin no 9 is an option pin for dism or lg forma t.( lg format = ?gnd?or?open?/ dism format =?vcc?) please refer to page 9 ,10 and 30 for further details. 2. the pin no 10 is an option pin for dcr function ( enable = ?vcc? / disable =?gnd?) 3. the pin no 30 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? ) 4. all gnd pins should be connected together, which should be also connected to the lcd module?s metal frame. 5. all v lcd (power input) pins should be connected together. 6. input levels of lvds signal s are based on the eia 664 standard. table 4. module connector(cn1) pin configuration 3-2-1. lcd module - lcd connector(cn1) : fi-x30ssl-hf (manufactured by jae) or equivalent - mating connector : fi-30c2l (manufactured by jae) or equivalent
product specification 9/ 33 lc420wx7 liquid crystal display ver. 1.0 table 5. inverter connector pin configulation 3-2-2. backlight inverter pin no symbol description master slave v bl v bl v bl v bl v bl v bl gnd gnd gnd gnd gnd don?t care 12 on/off 0.0v ~ 5.0v on/off don?t care 13 v br-b burst dimming voltage dc 0.0v ~ 3.3v v br - b -3 14 status normal : upper 3.0v abnormal : under 0.7v status - 4 v bl v bl v bl v bl gnd gnd gnd gnd gnd v br-a 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 6g n d backlight ground 7g n d backlight ground 2, 3 8g n d backlight ground 9g n d backlight ground 10 gnd backlight ground 1 11 v br-a analog dimming voltage dc 0.0v ~ 3.3v (typ : 1.65v) rear view of lcm pcb pcb ? ? 14 1 ? ? 1 12 notes : 1. gnd should be connected to the lcd module?s metal frame. 2. if pin #11 is open, vbr-a = 1.65v. when apply over 1.65v( ~ 3.3v) continuously, its luminance is increasing however lamp?s life time is decreasing. it could be usable for boost up luminance when using dcr (=dynamic contrast ratio) function only. 3. minimum brightness : vbr-b =0 v maximum brightness : vbr-b = 3.3v 4. even though pin #14 is open, there is no effect on in verter operating, the out put terminal of inverter. 5. each impedance of pin #11,12 and 13 is 155[k ? ], 10[ ?], 55[k ? ] [ master ] -inverter connector : s14b-ph-smc (manufactured by jst) or equivalent - mating connector : phr-14 or equivalent [ slave ] -inverter connector : s12b-ph-smc (manufactured by jst) or equivalent -mating connector : phr-12 or equivalent
product specification 10 / 33 lc420wx7 liquid crystal display ver. 1.0 table 6. timing table for ntsc table 6 and table 7 show the signal timing required at the input of the lvds transmitter. all of the interface signal timings should be satisf ied with the following specification for normal operation. 3-3. signal timing specifications item symbol min. typ. max. dclk period t clk 12.5 13.8 15.8 nsec dclk frequency f clk 63.0 72.4 80.0 mhz frequency f v 57 60 63 hz frequency f h 45 47.4 50 khz valid t vv - 768 - line blank t vt -t vv 8 22 295 line total t vt 776 790 1063 line vertical valid t hv - 1366 - t clk 410 1776 162 1528 90 1456 unit notes blank t ht -t hv t clk horizontal total t ht t clk table 7. timing table for pal khz 50 47.4 45 f h frequency hz 53 50 47 f v frequency line 1063 948 776 t vt total line 295 180 8 t vt -t vv blank line - 768 - t vv valid vertical mhz 80.0 72.4 63.0 f clk dclk frequency nsec 15.8 13.8 12.5 t clk dclk period t clk - 1366 - t hv valid 1776 410 max. 1528 162 typ. 1456 90 min. notes unit symbol item t clk t ht total horizontal t clk t ht -t hv blank 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.
product specification 11 / 33 lc420wx7 liquid crystal display ver. 1.0 0.7vdd 0.3vdd t clk invalid data valid data pixel 0,0 pixel 2,0 pixel 1,0 pixel 3,0 valid data invalid data invalid data invalid data de(data enable) 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 1 768
product specification 12 / 33 lc420wx7 liquid crystal display ver. 1.0 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 8 provides a reference for color versus data input. table 8. color data reference input color data red m sb l sb green m sb l sb blue m sb l sb 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 13 / 33 lc420wx7 liquid crystal display ver. 1.0 3-6. power sequence 3-6-1. lcd driving circuit 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 3x(1/fv), it operates protection pattern (black pattern) till valid signal inputted. there is no reliability pr oblem. (ex. 60hz : 3x(1/60hz) = 50ms) 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 signals(interface signal and option signals) precedes the on time of power(v lcd ), check the lcd logic power(vcc) is under 0.8v, otherwise it will be happened abnormal display. 6. t6 should be measured after the module has been fully discharged between power off and on period. value parameter min typ max notes t1 0.5 - 20 ms 3,5 4 4 3,5 2,6 -t 2 - - 5 5 t2 0.5 - 3 x (1/ f v ) ms t6 2.0 - - s t7 0 ms t8 0 ms t3 200 - - ms ms t4 200 - - t5 0 - - ms unit table 9. power sequence interface signal (tx) power for lamp power supply for lcd v lcd 10% 0v 90% 10% t 1 t 2 t 5 t 3 t 4 t 6 valid data lamp on t 7 t 8 option signal (lvds_select, dcr_enable, bit_select) 90%
product specification 14 / 33 lc420wx7 liquid crystal display ver. 1.0 table 10. power sequence 3-6-3. deep condition for inverter values parameter min typ max remarks t1 20 - - ms 1 t4 0 - t6 - - 10 ms v bl (typ) x 0.80 t7 1000 - - ms 3 ms 2 t5 10 - - ms t2 500 - - ms t3 200 - - ms units v bl (typ.) x 0.8 0 v v bl : 24v t 6 3-6-2. sequence for inverter power supply for inverter v on/off 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 t 7 1000ms (min) 1000ms (min) v br-a & v br-b notes : 1. t1 describes rising time of 0v to 24v and this parameter does not applied at restarting time. 2. t4(max) is less than t2. 3. in t7 section, v br-b is recommended 3.3v.
product specification 15 / 33 lc420wx7 liquid crystal display ver. 1.0 lcd module optical stage(x,y) pritchard 880 or equivalent 50cm fig. 1 optical characteristic measurement equipment and method 4. optical specification optical characteristics are determined after the unit has been ?on? and stable in a dark environment at 25 2 c. the values are specified at an approximate distance 50cm from the lcd surface at a viewing angle of and equal to 0 . it is presented additional information concerning the measurement equipment and method in fig. 1. table 11. optical characteristics ta= 25 2 c , v lcd =12.0v, f v =60hz, dclk=72.4mhz, v br-a =1.65v, v br-b =3.3v (except dcr function) value parameter symbol min typ max unit note cr 800 1000 dcr appendix v 1 - - white 5p 1.3 3 gray-to-gray g to g - 5 8 rise + decay ms 4 response time tr r + tr d - 10 14 gray scale - - - 6 contrast ratio surface luminance, white l wh 400 500 cd/m 2 2 luminance variation rx 0.635 red ry 0.344 gx 0.286 green blue white viewing angle (cr>10) x axis, right( =0 ) r 89 - - x axis, left ( =180 ) y axis, up ( =90 ) y axis, down ( =270 ) l 89 - - u 89 - - d 89 - - degree 5 gy 0.614 bx 0.146 by 0.061 wx 0.279 wy 0.292 typ +0.03 typ -0.03 color coordinates [cie1931]
product specification 16 / 33 lc420wx7 liquid crystal display ver. 1.0 table 12. gray scale specification gray level luminance [%] (typ) l0 0.11 0.25 1.08 2.07 4.51 7.75 12.05 17.06 22.36 28.21 35.56 43.96 53.00 63.37 74.66 88.17 100 l15 l31 l47 l63 l79 l95 l111 l127 l143 l159 l175 l191 l207 l239 l255 l223 note : 1. contrast ratio(cr) is defined mathematically as : cr (contrast ratio) = maximum crn (n=1, 2, 3, 4, 5) dcr (dynamic cr) = maximum crn (n=1, 2, 3, 4, 5) surface luminance at position n with all white pixels crn = surface luminance at position n with all black pixels n = the position number(1, 2, 3, 4, 5), for more information, see fig 2. 2. surface luminance are determined after the un it has been ?on? and 30min after lighting the backlight in a dark environment at 25 2 c. surface luminance is the luminance value at center 1-point across the lcd surface 50cm from the surface with all pixels displaying white. for more information see the fig. 2. 3. the variation in surface luminance , white is 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 ) 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 the time required for the display to 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 17 / 33 lc420wx7 liquid crystal display ver. 1.0 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 measure point for luminance a : h / 4 mm b : v / 4 mm h : 930 .25 mm v : 523.01 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 18 / 33 lc420wx7 liquid crystal display ver. 1.0 fig.4 viewing angle dimension of viewing angle range normal y e = 0 , right = 180 , left = 270 , down = 90 , up
product specification 19 / 33 lc420wx7 liquid crystal display ver. 1.0 the contents provide general mechanical characteristics. in addition the figures in the next page are detailed mechanical drawing of the lcd module. item value horizontal 983.0 mm vertical 576.0 mm outline dimension vertical 531.0 mm vertical 523.01 mm weight 10.5 kg (typ.) , 11.0 kg (max.) surface treatment hard coating(3h) anti-glare treatment of the front polarizer depth 51.0 mm horizontal 939.0 mm horizontal 930.25 mm active display area bezel area 5. mechanical characteristics table 13. mechanical characteristics note : 1.please refer to a mechanic drawing in terms of tolerance at the next page.
product specification 20 / 33 lc420wx7 liquid crystal display ver. 1.0
product specification 21 / 33 lc420wx7 liquid crystal display ver. 1.0
product specification 22 / 33 lc420wx7 liquid crystal display ver. 1.0 no. test item condition 1 high temperature storage test ta= 60 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 6. reliability table 14. environment test condition
product specification 23 / 33 lc420wx7 liquid crystal display ver. 1.0 7. international standards 7-1. safety 7-2. emc 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.. 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 electro technical standardization.(cenelec), 1998 ( including a1: 2000 )
product specification 24 / 33 lc420wx7 liquid crystal display ver. 1.0 8-2. packing form 8. packing 8-1. designation of lot mark a) lot mark abcdefghi jklm a,b,c : size(inch) d : year e : month f ~ m : serial no. note 1. year 2. month mark year 0 2010 6 2006 7 2007 8 2008 9 2009 4 2004 5 2005 321 2003 2002 2001 b nov mark month a oct 6 jun 7 jul 8 aug 9 sep 4 apr 5 may c 321 dec mar feb jan b) location of lot mark 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. a) package quantity in one box : 12 pcs b) box size :1150 mm(l) x 1020 mm(w) x 810 mm(h)
product specification 25 / 33 lc420wx7 liquid crystal display ver. 1.0 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 module on its edge. (10) it is recommended to avoid the signal cable and conductive material over the inverter transformer for it can cause the abnormal display and temperature rising. 9. precautions
product specification 26 / 33 lc420wx7 liquid crystal display ver. 1.0 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.
product specification 27 / 33 lc420wx7 liquid crystal display ver. 1.0 required signal assignment for lvds transmitter ( pin9=?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. (ds90c385 or compatible) 3. ?7? means msb and ?0? means lsb at r,g,b pixel data. red0 red1 red2 red3 red4 red5 red6 red7 green0 green1 green2 green3 green4 green5 green6 green7 blue0 blue1 blue2 blue3 blue4 blue5 blue6 blue7 hsync vsync data enable clock host system 24 bit txout0- txout0+ txout1- txout1+ txout2- txout2+ txclkout- txclkout+ txout3- txout3+ 51 52 54 55 56 3 50 2 4 6 7 11 12 14 8 10 15 19 20 22 23 24 16 18 27 28 30 31 ds90c385 or compatible 12 13 15 16 18 19 21 22 24 25 9 30 rxin0- rxin0+ rxin1- rxin1+ rxin2- rxin2+ rxclkin- rxclkin+ rxin3- rxin3+ lg / dism lcd test 100? 100? 100? 100? 100? 48 47 46 45 42 41 40 39 38 37 fi-x30ssl-hf timing controller lcd module gnd gnd # appendix-i-1
product specification 28 / 33 lc420wx7 liquid crystal display ver. 1.0 required signal assignment for lvds transmitter ( pin9=?h? ) 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. (ds90c385 or compatible) 3. ?7? means msb and ?0? means lsb at r,g,b pixel data. red0 red1 red2 red3 red4 red5 red6 red7 green0 green1 green2 green3 green4 green5 green6 green7 blue0 blue1 blue2 blue3 blue4 blue5 blue6 blue7 hsync vsync data enable clock host system 24 bit txout0- txout0+ txout1- txout1+ txout2- txout2+ txclkout- txclkout+ txout3- txout3+ ds90c385 or compatible 12 13 15 16 18 19 21 22 24 25 9 30 rxin0- rxin0+ rxin1- rxin1+ rxin2- rxin2+ rxclkin- rxclkin+ rxin3- rxin3+ lg / dism lcd test 100? 100? 100? 100? 100? 48 47 46 45 42 41 40 39 38 37 fi-x30ssl-hf timing controller lcd module vcc gnd 50 2 51 52 54 55 56 3 8 10 4 6 7 11 12 14 16 18 15 19 20 22 23 24 27 28 30 31 # appendix-i-2
product specification 29 / 33 lc420wx7 liquid crystal display ver. 1.0 LC420WX7-SLA1 ? pallet ass?y # appendix-ii no. description material 1 lcd module 2 bag 42inch 3 tape masking 20mmx50m 4 pallet paper 1140x990x130mm 8 angle,packing paper 9 band,clip steel 10 band pp 11 label yupo 80g 100x100 5 packing,bottom eps 6 packing,top eps 7 angle,post paper
product specification 30 / 33 lc420wx7 liquid crystal display ver. 1.0 lcm label serial no. (see cas 24 pa ge for more information) 8 1 2 3 4 5 6 7 9 10 11 12 inch m ass?y factory code serial no. 13 month year # appendix- iii model serial no. ul, tuv mark lpl logo us patent no. origin lc420wx7 (sl)(a1) rohs verified 30 / 33
product specification 31 / 33 lc420wx7 liquid crystal display ver. 1.0 pallet label 12 lc420wx7 sla1 rohs verified # appendix- iv 31 / 33
product specification 32 / 33 lc420wx7 liquid crystal display ver. 1.0 # appendix 3 # appendix- v-1 ntsc / pal sync_pwm ffc cable 13 11 system board lcm control board lcm master inverter lcm slave inverter 14 1 30 1 12v 30 1 12 1 12 nc / 1.65v vbr - a vbr - a 3.3v vbr - b vbr - b ntsc / pal sync_pwm ntsc / pal sync_pwm ffc cable dcr_enable ? h ? 3.3v 11 2827 10 analog switch lcm vbr-b lcm vbr-b lcm dcr only gray level luminance [%] dcr on vbr-a = 1.65v l0 0.05 0.20 0.63 1.68 3.54 6.41 10.82 16.74 22.00 27.44 34.62 42.94 51.94 62.25 73.66 87.05 100 l15 l31 l47 l63 l79 l95 l111 l127 l143 l159 l175 l191 l207 l239 l255 l223 dcr_enable on(3.3v) off (0v) v br -b 0v ~ 3.3v 3.3v v br -a 1.65v or nc 1.65v or nc dcr level 2000 : 1 1000 : 1
product specification 33 / 33 lc420wx7 liquid crystal display ver. 1.0 # appendix 3 # appendix- v-2 ntsc / pal sync_pwm ffc cable 13 11 system board lcm control board lcm master inverter lcm slave inverter 14 1 30 1 12v 30 1 12 1 12 0 ~ 3.3v vbr - a vbr - a 0 ~ 3.3v vbr - b vbr - b ntsc / pal sync_pwm ntsc / pal sync_pwm ffc cable dcr_enable ? l ? 3.3v 11 2827 10 analog switch lcm vbr-b system dcr (dynamic contrast ratio)- max 5000:1 note : 1. to make dcr max 5000:1 , v br -a and v br -b must be given by system. 2. dcr max 5000:1 is defined mathematically as : dcr = maximum dcrn (n=1, 2, 3, 4, 5) surface luminance at position n with all white pixels (vbr-b=3.3v, vbr-a=3.3v) dcrn = surface luminance at position n with all black pixels (vbr-b=0v, vbr-a=0v) n = the position number(1, 2, 3, 4, 5). for more information, see fig 2. v br -b 0v ~ 3.3v 3.3v v br -a 0v ~ 3.3v 1.65v dcr level 5000 : 1 1000 : 1

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