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product specification 1/ 28 lc230w02 liquid crystal display ver. 1.0 feb.16, 2005 specification for approval ( ) preliminary specification ( ) final specification *when you obtain standard approval, please use the above model name without suffix title 23? wxga tft lcd buyer general model supplier lg.philips lcd co., ltd. *model lc230w02 suffix a5k4 jay yoon / g.manager approved by signature date / please return 1 copy for your confirmation with your signature and comments. tv products engineering dept. lg. philips lcd co., ltd approved by reviewed by prepared by j.m kim / manager / / y.j kim / engineer signature date
product specification 2/ 28 lc230w02 liquid crystal display ver. 1.0 feb.16, 2005 specification for approval ( ) preliminary specification ( ) final specification *when you obtain standard approval, please use the above model name without suffix title 23? wxga tft lcd buyer lge did model supplier lg.philips lcd co., ltd. *model lc230w02 suffix a5k4 jay yoon / g.manager approved by signature date / please return 1 copy for your confirmation with your signature and comments. tv products engineering dept. lg. philips lcd co., ltd approved by reviewed by prepared by j.m kim / manager / / y.j kim / engineer signature date
product specification 3/ 28 lc230w02 liquid crystal display ver. 1.0 feb.16, 2005 no. item page -cover 1 -contents 2 - record of revisions 3 1 general description 4 2 absolute maximum ratings 5 5 color input data reference 14 4 optical specifications 17 6 reliablity 24 1 safety 8packing 26 3 electrical specifications 6 1 electrical charactreistics 6 2 interface connections 8 3 signal timing specifications 12 4 signal timing waveforms 13 6 power sequence 15 5 mechanical characteristics 21 7 international standards 25 2 emc 1 designation of lot mark 2 packing form 9precautions 27 contents
product specification 4/ 28 lc230w02 liquid crystal display ver. 1.0 feb.16, 2005 revision no. date page description model modify(add inverter reset curcuit) (lc230w02-a5k1=>LC230W02-A5K4) final ver 1.0 feb.16, 2004 record of revisions
product specification 5/ 28 lc230w02 liquid crystal display ver. 1.0 feb.16, 2005 the lc230w02 is a color active matrix liquid crystal display with an integral external electrode fluorescent lamp(eefl) backlight sy stem. the matrix employs a-si thin film transistor as the active element. it is a tr ansmissive type display operating in the normally black mode. this tft-lcd has a 23.0 inch diag onally measured active display area with wxga resolution (768 vertical by 1366 horizont al pixel array). 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. the lc230w02 has been designed to apply the lvds interface. it is intended to support lcd tv, pctv where high brightness, super wide viewing angle, high colo r gamut, high color depth, and fast response time are important. 1. general description figure 1. block diagram general features active screen size 22.95 inches(582.96mm) diagonal outline dimension 559.8(h) x 333.8(v) x 45.2(d) mm(typ.) 0.372 mm x 0.124 mm x rgb 1366 horizontal by 768 vertical pixels. rgb stripe arrangement lvds 1port 8-bit, 16,777,216 colors 500 cd/m 2 ( center 1 point, typ. ) viewing angle free(r/l 176(typ.), u/d 176(typ.)) total 59.1 watt(typ.), (3.9 watt @v lcd , 55.2 watt @v bl ) 4200 g (typ.) display operating mode transmissive mode, normally black hard coating (3h), anti-glare treatment of the front polarizer pixel pitch pixel format interface color depth luminance, white viewing angle (cr>10) power consumption weight surface treatments cn1 (30pin) lvds 5pair option source driver circuit tft - lcd panel (1366 ? rgb ? 768 pixels) g1 s1 s1366 g768 rgb(mini-lvds) timing controller [lvds rx & mini-lvds tx integrated] gate driver circuit power circuit block # 9 +12.0v back light assembly (15eefl) 2pin x 1cns (high) +24.0v +24.0v inverter (cn2,cn3) 2pin x 1cns (high)
product specification 6/ 28 lc230w02 liquid crystal display ver. 1.0 feb.16, 2005 note : 1. temperature and relative humidity ra nge are shown in the figure below. wet bulb temperature should be 39 ? c max, and no condensation. figure 2. temperature and relative humidity table 1. absolute maximum ratings value parameter symbol min max unit note +14 v bl -0.3 +27 vdc brightness control voltage v br 0+3.3 vdc 1 1 1 at 25 ? 1 +5.25 +40 +50 90 -0.3 90 vdc vdc ? c ? c %rh %rh -0.3 0 -20 10 10 v lcd on/off t op t st h op h st power supply input voltage on/off control voltage operating temperature storage temperature operating ambient humidity storage humidity 2. absolute maximum ratings %sz#vmc5fnqfsbuvsf< ? c > 8fu#vmc 5fnqfsbuvsf<$> 4upsbhf 0qfsbujpo )vnjejuz<
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product specification 7/ 28 lc230w02 liquid crystal display ver. 1.0 feb.16, 2005 3. electrical specifications 3-1. electrical characteristics table 2. electrical characteristics value parameter symbol min typ max 1. power for panel: power supply input voltage v lcd 11.4 12.0 12.6 vdc - 325 420 ma 1 power consumption p lcd - 3.90 5.04 watt 1 inrush current (v lcd input) i rush -- 3 a 3 power supply input current i lcd - 390 510 ma 2 unit note the lc230w02 requires two power inputs. one is employed to power the lcd electronics and to drive the tft array and liquid crystal. the second input power for the eefl/backlight, is to power the inverter. notes: 1. the specified current and power consumption are under the v lcd =12v, 25 ? c, fv(frame frequency)=60hz condition. typical supply current is measured at the condition of 8 x 6 mosaic pattern(white black) shown in the [ figure 3 ] is displayed. 2. the current is specified at the maximum current pattern. 3. the duration of rush current is about 2m s and rising time of power input is 1ms(min). [ figure 3 ] mosaic pattern : for power consumption measurement
product specification 8/ 28 lc230w02 liquid crystal display ver. 1.0 feb.16, 2005 table 3. inverter electrical characteristics note : 1. the specified current and power consumption ar e under the typical supp ly input voltage, 24.0v. the ripple voltage of the power suppl y input voltage is under 0.5 vp-p. 2. the duration of rush current is about 2ms and rising time of power input is 1ms(min). 3. the life is determined as the time at which luminance of the lamp is 50% compared to that of initial value at the typical lamp current on condition of continuous operating at 25 2 ? c. value parameter symbol condition min typ max note 2. power for inverter 1 power supply input current i bl v br -b = 3.3v -2.32.7a1 brightness adj. v br 0-3.3vdc inrush current (v bl input) i rush ---5a 2 lamp lifetime 50,000 - hrs 3 1 v br ?b =3.3v h (lamp on) l (lamp off) 0.0 - 0.6 vdc power supply input voltage v bl 22.8 24.0 25.2 vdc power consumption p bl - 55.2 64.8 watt 2.4 - 5.0 vdc back-light on/off control voltage on/off unit
product specification 9/ 28 lc230w02 liquid crystal display ver. 1.0 feb.16, 2005 rear view of lcm 30 1 - part/no. : fi-x30ssl-hf(jae) - mating connector : fi-30c2l (manufactured by jae) or compatible 3-2. interface connections this lcd employs two kinds of interface conn ections. a 30 pin connector is used for lcd electronics and a 12pin connector is used for the integral backlight system. table 4. 30pin connector pin configuration (for lcd panel) 3-2-1. signal interface the lcd connector(cn1) : fi-x30ssl-hf (manufactured by jae) or equivalent. the pin configuration for the 30 pin connector is shown in the table below. pin signal assignment pin signal assignment 16 lvds signal channel 1+ gnd lvds signal channel 2- lvds signal channel 2+ gnd lvds clock c- lvds clock c+ gnd 9 dism (note 1) 24 lvds signal channel 3- 10 nc 25 lvds signal channel 3+ 11 gnd 26 gnd 12 lvds signal channel 0- 27 nc 13 lvds signal channel 0+ 28 nc gnd gnd 17 18 19 20 21 22 23 29 30 v lcd (12v) v lcd (12v) v lcd (12v) v lcd (12v) gnd gnd gnd gnd gnd lvds signal channel 1- 1 2 3 4 5 6 7 8 14 15 notes: 1. if pin9 is ground, interface format is ?lg? , and if pin9 is 3.3v, interface format is ?dism. (see page 9~10) 2. all gnd(ground) pins should be connected together and should also be connected to the lcd?s metal frame. 3. all power input pins should be connected together. 4. input level of lvds signal is based on the iea664 standard. 5. the pin30 should be ground, this pin is necessary for lpl?s test
product specification 10 / 28 lc230w02 liquid crystal display ver. 1.0 feb.16, 2005 table 5. required signal assignment for lvds transmitter (pin9 = ?l? or open) note: 1. the lcd module uses a 100 ohm( ? ) resistor between posit ive and negative lines of each receiver input. 2. refer to lvds transmitter data sheet fo r 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
product specification 11 / 28 lc230w02 liquid crystal display ver. 1.0 feb.16, 2005 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 table 6. required signal assignment for lvds transmitter (pin9 = ?h? ) note: 1. the lcd module uses a 100 ohm( ? ) resistor between posit ive and negative lines of each receiver input. 2. refer to lvds transmitter data sheet fo r detail descriptions. (ds90c385 or compatible) 3. ?7? means msb and ?0? means lsb at r,g,b pixel data.
product specification 12 / 28 lc230w02 liquid crystal display ver. 1.0 feb.16, 2005 3-2-2. inverter connector for backlight the inverter connector is s12b-ph-sm3 (manufactured by jst) or equivalent the pin configuration for the 12 pin connector is shown in the table below. table 7. 12pin connector pin conf iguration (for inverter connector) pin symbol signal assignment note master(cn2) slave(cn3) 1v bl 24v power input v bl v bl v bl v bl v bl v bl gnd gnd gnd gnd gnd don?t care don?t care v bl v bl v bl v bl gnd gnd gnd gnd gnd v br- b on/off 2v bl 24v power input 3v bl 24v power input 1 0v ~ 3.3v on : 2.4 ~ 5.0v off : 0.0 ~ 0.6v v bl v bl gnd gnd gnd gnd gnd v br- b on/off 24v power input 24v power input ground ground ground ground ground 4 burst dimming backlight on/off control 5 6 7 8 9 10 11 12 notes : pin 1~10 should connect to master and slave connector. 1. ground is connected to the lcd?s metal frame. 1. connector 1) connector(receptacle) : s12b-ph-sm3 (jst) or its equivalent 2) mating connector(plug) : phr12 (jst) or its equivalent * jst : japan solderless terminal co.,ltd. rear view of lcm ? ? pcb 12 1 s12b-ph-sm3 12 1
product specification 13 / 28 lc230w02 liquid crystal display ver. 1.0 feb.16, 2005 3-3. signal timing specifications this is the signal timing required at the input of the lvds transmitter. all of the interface signal timing should be satisf ied with the following specificat ions for it?s proper operation. table 8. timing table item symbol min. typ. max. period t clk 12.5 13.8 14.7 ns 80 1776 50 - 1063 63 - 1366 - - t hp- t hv 768 - - t vp- t vv 72.3 1528 47.4 32 790 60 5 1366 80 48 160 768 15 2 22 68 1416 45.0 8 775 47 2 1366 24 16 48 768 4 1 7 unit note clock frequency f clk mhz t ht pixel khz pixel vertical total t vt line vsync width t wv line vertical valid t vv line vertical back porch t vbp vertical front porch t vfp vertical blank - pal : 47~53hz, ntsc : 57~63hz horizontal valid t hv pixel horizontal back porch t hbp de horizontal front porch t hfp vsync frequency f v hz vsync horizontal blank - f h t wh horizontal total hsync frequency hsync width hsync note: hsync period and hsync width-active sh ould be even number times of t clk . if the value is odd number times of t clk , display control signal can be asynchronous. in order to operate this lcm a hsync.,vsync an d de(data enable) signals should be used. 1. the performance of the electro-optical characteristics are may be influenced by variance of the vertical refresh rates. 2. vsync, hsync should be keep the above specification.
product specification 14 / 28 lc230w02 liquid crystal display ver. 1.0 feb.16, 2005 0.7vcc 0.3vcc t clk invalid data valid data invalid data de(data enable) 0.5 vcc t hp t hbp t hv t hfp t vp t wv t vbp t vv t vfp hsync vsync de(data enable) de(data enable) dclk hsync, vsync, de, data t wh 3-4. signal timing waveforms
product specification 15 / 28 lc230w02 liquid crystal display ver. 1.0 feb.16, 2005 3-5. color input data reference the brightness of each primary color (red,green an d blue) is based on the 8-bit gray scale data input for the color ; the higher the binary input, the brighter the color. the table below provides a reference for color versus data input. table 9. color data reference $pmps #btjd $pmps 3fe (sffo #mvf #mbdl 3fe
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product specification 16 / 28 lc230w02 liquid crystal display ver. 1.0 feb.16, 2005 3-6. power sequence table 10. power sequence for lcm interface signal (lvds data with h,vsync and de) power supply for backlight inverter power supply (v lcd : 12v) 90% 90% 10% 10% t1 t2 lamp on lamp off valid data lamp off t3 t4 t5 t6 value parameter min typ max t1 0.01 - 10 ms t2 0.01 - 50 ms t6 2000 - - ms t3 200 - - ms ms t4 200 - - t5 0.01 - 50 ms unit notes : 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 for lcd v lcd to 0v. 3. lamp power must be turn on after power supply for a lcd interface signal are valid. 4. t6 should be measured after the module has been fully discharged between power off and on period. 3-6-1. sequence for lcd module
product specification 17 / 28 lc230w02 liquid crystal display ver. 1.0 feb.16, 2005 on/off control (0~5v) brightness adj. v br : (0~3.3v) power supply for inverter (v bl : 24v) 10% 90% t 1 t 2 value parameter min typ max note t1 20 - - ms 1 t4 0 - - ms t5 10 - - ms t2 100 - - ms t3 200 - - ms ms t6 - - 10 unit table 11. power sequence for inverter t 3 t 2 0.7v t 4 t 4 3-6-3. deep condition for inverter 0 v v bl : 24v 5 v bl (typ.) x 0.85 3-6-2. sequence for inverter t 5
product specification 18 / 28 lc230w02 liquid crystal display ver. 1.0 feb.16, 2005 4. optical specification optical stage(x,y) lcd module field = 1 50cm pritchard pr880 or equivalent [figure 4] optical characteristic measurement equipment and method table 12. optical characteristics optical characteristics are determined after the unit has been ?on? for 30min in a dark environment at 25 ? 2 ? c. the values specified are at an approximate distance 50cm from the lcd surface at a viewing angle of and equal to 0 ? . fig. 4 presents additional information concerning the measurement equipment and method. value parameter symbol min typ max luminance variation white -1.3 3 rise time trr 7 15 decay time trd 9 15 ms 4 response time color coordinates red rx 0.640 green blue by 0.067 white wx 0.285 x axis, right( =0 ? ) r 85 89 - x axis, left ( =180 ? ) y axis, up ( =90 ? ) y axis, down ( =270 ? ) degree 5 l 85 89 - u 85 89 - d 85 89 - wy 0.293 viewing angle (cr>10) gray scale 6 gx 0.292 gy 0.607 typ +0.03 typ ? 0.03 ry 0.343 bx 0.147 contrast ratio cr 400 550 1 surface luminance, white l wh 400 500 cd/m 2 unit note 2 (ta=25 ? 2 ? c, v lcd =12v, f v =60hz, clk=72.3mhz, v br =3.3v)
product specification 19 / 28 lc230w02 liquid crystal display ver. 1.0 feb.16, 2005 note : 1. contrast ratio(cr) is defined mathematically as : surface luminance with all white pixels contrast rati o = --------------------------------------------------------- surface luminance with all black pixels it is measured at center point(1) 2. surface luminance(l wh) is luminance value at center point (p1) across the lcd surface 50cm from the surface with all pixels displaying white. for more information see fig 5. 3. the variation in surface luminance , white is defined as white = maximum (p1,p2, ?..,p5) / minimum (p1,p2, ?..,p5) for more information see [ figure 5 ]. figure 5. luminance measuring point a : h / 4 mm b : v / 4 mm h : 508.152 mm v : 285.696 mm @ h,v : active area p1 b h v p5 p4 p3 p2 a
product specification 20 / 28 lc230w02 liquid crystal display ver. 1.0 feb.16, 2005 t r r t r d 100% 90% 10% 0 optical response figure 6. response time 4. the response time is defined as the fo llowing figure and shall be measured by switching the input signal for ?black? and ?white?. 5. viewing angle is the angle at which the cont rast ratio is greater than 10. the angles are determined for the horizontal or x axis and the vertical or y axis with respect to the z axis which is normal to the lcd surface. for more information see figure 7 . figure 7. viewing angle normal y e = 0 , right = 180 , left = 270 , down = 90 , up black white black
product specification 21 / 28 lc230w02 liquid crystal display ver. 1.0 feb.16, 2005 table 13. gray scale 6. gray scale specification gray level luminance [%] (typ) l0 0.15 l15 0.23 0.74 1.91 3.95 6.91 10.9 15.6 20.7 27.0 34.7 43.6 53.1 63.9 75.6 90.9 100 l31 l47 l63 l79 l95 l111 l127 l143 l159 l175 l191 l207 l239 l255 l223
product specification 22 / 28 lc230w02 liquid crystal display ver. 1.0 feb.16, 2005 5. mechanical characteristics table 11. provides general mechanical charac teristics for the model lc230w02. in addition, the figures in the next page are deta iled mechanical drawing of the lcd. table 14. mechanical characteristics horizontal 559.8 mm vertical 333.8 mm vertical 290.6 mm vertical 285.696 mm weight 4200 g (typ.), 4450 g (max.) surface treatment hard coating(3h) anti-glare treatment of the front polarizer depth 45.2 mm horizontal 513.0 mm horizontal 508.152 mm active display area bezel area outline dimension notes : please refer to a mechanic drawing in terms of tolerance at the next page.
product specification 23 / 28 lc230w02 liquid crystal display ver. 1.0 feb.16, 2005
product specification 24 / 28 lc230w02 liquid crystal display ver. 1.0 feb.16, 2005
product specification 25 / 28 lc230w02 liquid crystal display ver. 1.0 feb.16, 2005 6. reliability environment test condition no test item condition 1 high temperature storage test 50 ? c, 240hrs 2 low temperature storage test -20 ? c, 240hrs 3 high temperature operation test 40 ? c, 50%rh, 240hrs 4 low temperature operation test 0 ? c, 240hrs 5 vibration test (non-operating) wave form : random vibration level : 1.0grms bandwidth : 10-500hz duration : x,y,z, 10 min one time each direction 6 shock test (non-operating) shock level : 100grms waveform : half sine wave, 2ms 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)
product specification 26 / 28 lc230w02 liquid crystal display ver. 1.0 feb.16, 2005 7. international standards 7-1. safety a) ul 60950, third edition, underwriters laboratories, inc., dated dec. 11, 2000. standard for safety of information technolo gy equipment, including electrical business equipment. b) can/csa c22.2, no. 60950, third edition, ca nadian standards association, dec. 1, 2000. standard for safety of inform ation technology equipment, including electrical business equipment. c) en 60950 : 2000, third edition iec 60950 : 1999, third edition european committee for electro technical standardization(cenelec) european standard for safety of info rmation technology equipment including electrical business equipment. 7-2. emc a) ansi c63.4 ?methods of measurement of radi o-noise emissions from low-voltage electrical and electrical equipment in the range of 9khz to 40ghz. ?american national standards institute(ansi),1992 b) c.i.s.p.r ?limits and methods of measurem ent of radio interface characteristics of information technology equipment.? international special committee on radio interference. c) en 55022 ?limits and methods of measuremen t of radio interface characteristics of information technology equipment.? eur opean committee for electro technical standardization.(cenelec), 1998( including a1: 2000 )
product specification 27 / 28 lc230w02 liquid crystal display ver. 1.0 feb.16, 2005 8. packing 8-1. designation of lot mark 8-2. packing form a) package quantity in one box : 4 pcs b) box size : 439mm x 350mm x 665mm. abcdefghi jklm a,b,c : inch d : year e : month f : panel code g : factory code h : assembly code i,j,k,l,m : serial no note 1. year 2. month year 97 98 99 2000 2001 2002 2003 2004 2005 2006 mark 6 24 035 1 2007 789 7 month jan feb mar apr may jun jul aug sep oct nov mark b a 68 479 5 dec 123 c 5. serial no serial no. 1 ~ 99,999 100,000 ~ mark 00001 ~ 99999 a0001 ~ a9999, - - - - , z9999 4. factory code factory code lpl gumi lpl nanjing mark k c 3. panel code panel code p1 factory p2 factory p3 factory p4 factory p5 factory 45 3 hydis panel 2h mark 1
product specification 28 / 28 lc230w02 liquid crystal display ver. 1.0 feb.16, 2005 9. precautions please pay attention to the following when you use this tft lcd module. 9-1. mounting precautions (1) you must mount a module using holes arranged in side and rear. (2) you should consider the mounting structur e 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 a transparent protective plate 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 materi als for the cover case are not describe 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 polari zers 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 polarize r with bare hand or greasy cloth. (some cosmetics are determined to the polarizer.) (7) when the surface becomes dusty, please wipe gently with absorbent cotton or other soft materials like chamois soaks wi th petroleum benzine. normal-hexane is recommended for cleaning the adhesives us ed 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 possible. 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 temperatur e.(in lower temperature, it becomes longer.) (3) brightness depends on the temperature. (in lower temperature, it becomes lower.) and in lower temperature, response time(requi red time that brightness is stable after turned on)becomes longer. (4) be careful for condensation at sudden te mperature change. conden sation 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 lo ng time, remnant image is likely to occur. (6) module has high frequency circuits. su fficient suppression to the electromagnetic interference shall be done by system ma nufacturers. 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 not be operated its full characteristics perfectly. (8) a screw which is fastened up the steels should be a machine screw (if not, it causes metal foreign ma terial and deals lcm a fatal blow) (9) please do not set lcd on its edge.
product specification 29 / 28 lc230w02 liquid crystal display ver. 1.0 feb.16, 2005 since a module is composed of electronic circui ts, it is not strong to electrostatic discharge. make certain that treatment persons are connec ted to ground through wrist band etc. and don?t touch interface pin directly. 9-3. electrostatic discharge control strong light exposure causes degrad ation 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 th e module to sunlight or fluorescent light. keep the temperature between 5 ? c and 35 ? c at normal humidity. (2) the polarizer surface should not co me in contact with any other object. it is recommended that they be stored in the container in which they were shipped. 9-5. storage (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 between the film and polarizer. this should be peeled off slowly and carefully by people who are electrically grounded and with well ion-blown equipment or in such a condition, etc. (2) when the module with protection film attach ed is stored for a long time, sometimes there remains a very small amount of glue still on th e bezel after the protection film is peeled off. (3) you can remove the glue easily. when the glue remains on the bezel or its vestige is recognized, please wipe them off with abso rbent cotton waste or other soft material like chamois soaked with normal-hexane. 9-6. handling precaution s for protection film

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