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| product specification lm150x05 liquid crystal display ver. 1.1 oct. 18, 2001 1/26 paul lee / g.manager specification for approval ( ) preliminary specification ( ) final specification title 15.0? xga tft lcd buyer model supplier *model suffix lg.philips lcd co., ltd. lm150x05 f3 *when you obtain standard approval, please use the above model name without suffix signature date / / / please return 1 copy for your confirmation with your signature and comments. product engineering dept. lg. philips lcd co., ltd approved by date reviewed by prepared by s. g. hong / manager j. y. lee / engineer
product specification lm150x05 liquid crystal display ver. 1.1 oct. 18, 2001 2/26 no. item page cover contents record of revisions general description absolute maximum ratings electrical specifications electrical charactreistics interface connections signal timing specifications signal timing waveforms color input data referenece power sequence optical specifications mechanical characteristics reliability international standards safety emc packing designation of lot mark packing form precautions - - - 1 2 3 3-1 3-2 3-3 3-4 3-5 3-6 4 5 6 7 7-1 7-2 8 8-1 8-2 9 1 2 3 4 5 6 6 8 10 11 12 13 15 19 22 23 23 23 24 24 24 25 power dip condition 3-7 14 product specification lm150x05 liquid crystal display ver. 1.1 oct. 18, 2001 3/26 records of revisions revision no date page description 0.0 1.0 1.1 aug. 20, 2001 oct. 10, 2001 oct. 18, 2001 - - - first draft second draft (fixed values) final draft product specification lm150x05 liquid crystal display ver. 1.1 oct. 18, 2001 4/26 1. general description the LM150X05-F3 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 transistor as the active element. it is a transmissive type display operating in the normally white mode. this tft-lcd has a 15.0 inches diagonally measured active display area with xga resolution(768 vertical by 1024 horizontal 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 brightness of the sub-pixel color is determined with a 6-bit gray scale signal for each dot, thus, presenting a palette of more than 262,144 colors. the LM150X05-F3 has been designed to apply the 1-port ttl (1-pixel 1-clock) interface method. the LM150X05-F3 lcd is intended to support applications where high brightness, wide viewing angle, high color saturation, and high color depth are very important. in combination with the vertical arrangement of the sub-pixels, the LM150X05-F3 characteristics provide an excellent flat panel display for office automation products such as monitors. general features display operating mode active screen size outline dimension pixel pitch pixel format color depth luminance, white power consumption weight surface treatments transmissive mode, normally white 15.0 inches(304.1 x 228.1) diagonal 331.3(h) 257.9(v) 11.0(d) mm (typ) 0.297 mm x 0.297mm 1024 horiz. by 768 vert. pixels rgb stripes arrangement 6-bit, 262,144 colors 250 cd/m 2 (typ.) total 9.3 watt(typ.) 1050g (typ) hard coating(3h) anti-glare treatment of the front polarizer [ figure 1 ] block diagram product specification lm150x05 liquid crystal display ver. 1.1 oct. 18, 2001 5/26 2. absolute maximum ratings the following are maximum values which, if exc eeded, may cause operation or damage to the unit. table 1. absolute maximum ratings parameter symbol values min. max. units notes power input voltage signal input voltage operating temperature storage temperature operating ambient humidity storage humidity v cc v i t op t st h op h st -0.3 -0.3 0 -20 10 10 3.6 3.6 50 60 90 90 vdc v c c %rh %rh at 25 2 c 1 1 1 1 note : 1. temperature and relative humidi ty range are shown in the [ figure 2 ] wet bulb temperature should be 40 c max, and no condensation of water. [ figure 2 ] temperature and relative humidity product specification lm150x05 liquid crystal display ver. 1.1 oct. 18, 2001 6/26 3. electrical specifications 3-1. electrical characteristics the LM150X05-F3 requires two power inputs. one is employed to power the lcd electronics and to drive the tft array and liquid crystal. another which power s the ccfl, is typically generated by an inverter. the inverter is an external unit to the lcd. table 2. electrical characteristics parameter symbol values min. typ. max. units notes module : signal input voltage power supply input voltage permissive power input ripple power supply input current power consumption lamp : operating voltage operating current established starting voltage at 25 c at 0 c operating frequency discharge stabilization time power consumption life time v i v cc v rf i cc p cc v bl i bl v bs f bl t s p bl 3.0 3.15 - - - 460 3.0 - - 45 - 30,000 3.3 3.3 - 0.48 1.6 480 8.0 - - 60 7.7 - 3.6 3.45 0.1 0.65 2.4 590 9.0 850 1100 80 3 8.5 - v v v pp a watts v rms ma v rms v rms khz minutes watts hrs 1 2 3 4 5 6 7 note. the design of the inverter must have specifications for the lamp in lcd assembly. the performance of the lamp in lcm, for example life time or brightness, is extremely influenced by the characteristics of the dc-ac inverter. so all the parameters of an inverter should be carefully designed so as not to produce too much leakage cur r ent from high-voltage output of the inverter. when you design or order the inverter, please make sure unwanted lighting caused by the mismatch of the lamp and the inverter(no lighting,flicker,etc) never occurs.when you confirm it,the lcd assembly should be operated in the same condition as installed in your instrument. note. do not attach a conducting tape to lamp connecting wire.. if the lamp wire attach to conducting tape, tft-lcd module have a low lumi nance and the inverter has abnormal action because leakage current occurs between lamp wire and conducting tape. 1. the specified cur r ent and pow er consumption are under the v cc =3.3v, 25 c, f v ( f rame frequency) =60hz condition whereas mosaic(black & white) pattern shown in the [ figure 3 ] is displayed. 2. the variance of the voltage is 10%. 3. the voltage above v bs should be applied to the lamps for more than 1second for start-up. otherwise,the lamps may not be turned on. product specification lm150x05 liquid crystal display ver. 1.1 oct. 18, 2001 7/26 the output of the inverter must have symmetrical(negative and positive) voltage waveform and symmetrical current waveform.(unsymmetrical ratio is less than 10%) please do not use the inverter which has unsymmetrical voltage and unsymmetrical current and spike wave. lamp frequency may produce interference with horizontal synchronous frequency and as a result this may cause beat on the display.therefore lamp frequency shall be as away as possible from the horizontal synchronous frequency and from its harmonics in order to prevent interference. let?s define the brightness of the lamp after being lighted for 5 minutes as 100%. t s is the time required for the brightness of the center of the lamp to be not less than 95%. the used lamp current is the lamp typical current. the lamp power consumption shown above does not include loss of external inverter. the used lamp current is the lamp typical current. the life time is determined as the time at which bri ghtness of lamp is 50% compared to that of initial value at the typical lamp current on condition of continuous operating at 25 2 . requirements for a system inverter design, which is intended to have a better display performance, a better power efficiency and a more reliable lamp. it shall help increase the lamp lifetime and reduce its leakage current. a. the unbalance rate of the inverter waveform should be 10% below; b. the distortion rate of the waveform should be within 2 10%; c. the ideal sine wave form shall be symmetric in positive and negative polarities. * asymmetry rate = | i p ?i ?p | / i rms * 100% * distortion rate = i p (or i ?p ) / i rms inverter open voltage must be more than lamp starting voltage. 4. 5. 6. 7. 9. 10. [ figure 3 ] mosaic pat t ern for power consumption measurement i p i -p product specification lm150x05 liquid crystal display ver. 1.1 oct. 18, 2001 8/26 3-2. interface connections this lcm has three interface connections, a 41 pin connector is used for the module electronics and, two three pin connectors are used for the integral back light system. the interface pin configuration for the connector is shown in the table below. lcd connector : df9b-41p-1v(hirose electric co.,ltd.) mating connector : df9b-41s-1v(hirose electric co.,ltd.) table 3. module connector pin configuration pin symbol description 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 gnd clk gnd hsync vsync gnd gnd gnd r0 r1 r2 gnd r3 r4 r5 gnd gnd gnd g0 g1 gnd clock signal for sampling data signal gnd horizontal synchronous signal vertical synchronous signal gnd gnd gnd red data signal(lsb) red data signal red data signal gnd red data signal red data signal red data signal(msb) gnd gnd gnd green data signal(lsb) green data signal pin symbol description 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 g2 gnd g3 g4 g5 gnd gnd gnd b0 b1 b2 gnd b3 b4 b5 gnd de v cc v cc v cc v cc green data signal gnd green data signal green data signal green data signal(msb) gnd gnd gnd blue data signal(lsb) blue data signal blue data signal gnd blue data signal blue data signal blue data signal(msb) gnd data enable signal +3.3v power supply +3.3v power supply +3.3v power supply +3.3v power supply product specification lm150x05 liquid crystal display ver. 1.1 oct. 18, 2001 9/26 the backlight interface connector is a model bhr-03vs-1, manufactured by jst. the mating connector part number is sm02(8.0)b-bhs-1-tb or equivalent. the pin configuration for the connector is shown in the table below. table 4. backlight connector pin configuration pin symbol description notes 1 2 3 hv nc lv power supply for lamp (high voltage side) no connect power supply for lamp (low voltage side) 1 notes : 1. the high voltage side terminal is colored pink. 2. lamp wire length is 130mm.(see the page 20 for detail) [ figure 5 ] backlight connector view pin 2 pin 41 back side of lcm top side bottom side pin 1 pin 40 [ figure 4 ] rear view of lcm for user connector product specification lm150x05 liquid crystal display ver. 1.1 oct. 18, 2001 10/26 3-3. signal timing specifications this is the signal timing required at the input of the user connector. all of the interface signal timing should be satisfied with the following specifications for it?s proper operation. table 5. timing table parameter symbol min. typ. max. unit notes t clk 12.5 15.4 20 ns f clk 50 65 80 mhz period frequency dclk t clk t hp t hv 1024 1024 1024 horizontal valid 40 328 horizontal blank de (data enable) t vv 768 768 768 vertical valid 772 806 vertical period set up time hold time set up time data hold time ns for dclk t si t hi t sd t hd 3- - 3- - 3- - 3- - t hb t vp - - f v 50 60 75 vertical frequency hz 1 2 note : de only mode needs de signal , data and dclk. 1. t hb (horizontal blank) is fixed by f v ,t vb ,f clk . if f v = 50hz, t vb = 4, f clk = 80mhz, then t hb =1048 is the max. value. 2. t vb (vertical blank) is fixed by f v ,t hb ,f clk . if f v = 50hz, t hb = 40, f clk = 80mhz, then t vb =732 is the max. value. *t hb and t vb should be keep those min. values at all case for normal display. 1064 1352 horizontal period t hp - 438 vertical blank t vb - t vv +t vb t hv +t hb product specification lm150x05 liquid crystal display ver. 1.1 oct. 18, 2001 11/26 3-4. signal timing waveforms [ figure 6 ] signal timing waveforms dclk de, data, dclk t clk valid invalid invalid de(data enable) 0.7v cc 0.3v cc data de(data enable) t vb t vv t si t hi t sd t hd invalid invalid data t hv t hb 1 2 3 4 767 768 1 2 3 4 1 2 3 1024 t vp t hp product specification lm150x05 liquid crystal display ver. 1.1 oct. 18, 2001 12/26 3-5. color input data reference the brightness of each primary color(red,green and blue) is based on the 6-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 6. color data reference color input color data red green blue msb lsb msb lsb msb lsb ro5 ro4 ro3 ro2 ro1 ro0 re5 re4 re3 re2 re1 re0 0 1 0 0 0 1 1 1 black red(63) green(63) blue(63) cyan magenta yellow white 0 1 0 0 0 1 1 1 0 1 0 0 0 1 1 1 0 1 0 0 0 1 1 1 0 1 0 0 0 1 1 1 0 1 0 0 0 1 1 1 0 0 1 0 1 0 1 1 0 0 1 0 1 0 1 1 0 0 1 0 1 0 1 1 0 0 1 0 1 0 1 1 0 0 1 0 1 0 1 1 0 0 1 0 1 0 1 1 0 0 0 1 1 1 0 1 0 0 0 1 1 1 0 1 0 0 0 1 1 1 0 1 0 0 0 1 1 1 0 1 0 0 0 1 1 1 0 1 0 0 0 1 1 1 0 1 basic colors 0 0 0 : 1 1 1 red(00) dark red(01) red(02) : red(61) red(62) red(63) bright 0 0 0 : 1 1 1 0 0 0 : 1 1 1 0 0 0 : 1 1 1 0 0 1 : 0 1 1 0 1 0 : 1 0 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 0 0 0 : 0 0 0 0 0 0 : 0 0 0 0 0 0 : 0 0 0 0 0 0 : 0 0 0 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 0 0 0 : 0 0 0 green(00)dark green(01) green(02) : green(61) green(62) green(63) bright 0 0 0 : 0 0 0 0 0 0 : 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 0 0 0 : 1 1 1 0 0 0 : 1 1 1 0 0 0 : 1 1 1 0 0 1 : 0 1 1 0 1 0 : 1 0 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 0 0 0 : 0 0 0 0 0 0 : 0 0 0 green 0 0 0 : 0 0 0 blue(00) dark blue(01) blue(02) : blue(61) blue(62) blue(63) bright 0 0 0 : 0 0 0 0 0 0 : 0 0 0 0 0 0 : 0 0 0 0 0 0 : 0 0 0 0 0 0 : 0 0 0 0 0 0 : 0 0 0 0 0 0 : 0 0 0 0 0 0 : 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 0 0 0 : 1 1 1 0 0 0 : 1 1 1 0 0 0 : 1 1 1 0 0 1 : 0 1 1 0 1 0 : 1 0 1 blue go5 go4 go3 go2 go1 go0 ge5 ge4 ge3 ge2 ge1 ge0 bo5 bo4 bo3 bo2 bo1 bo0 be5 be4 be3 be2 be1 be0 product specification lm150x05 liquid crystal display ver. 1.1 oct. 18, 2001 13/26 3-6. power sequence t 6 interface signal, v i (ttl signal) power for lamp power supply for lcd v cc 90% 10% 10% 0v 90% t 1 t 2 t 5 valid data 0v off off lamp on t 7 t 3 t 4 parameter values units min. typ. max. t 1 t 2 t 3 t 4 t 5 t 6 t 7 - 0 200 200 0 - 500 - - - - - - - 10 50 - - 50 10 - ms ms ms ms ms ms ms 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 cc to 0v. 3. lamp power must be turn on after power supply for lcd and interface signal are valid. 0v table 7. power sequence time delay [ figure 7 ] power sequence product specification lm150x05 liquid crystal display ver. 1.1 oct. 18, 2001 14/26 3-7. v cc power dip condition 1) dip condition 2.3v v cc 3.0v , t d 20ms 2) v cc 2.3v v cc -dip conditions should also follow the power on/off conditions for supply voltage. 3.0v 2.3v t d v cc [ figure 8 ] power dip condition product specification lm150x05 liquid crystal display ver. 1.1 oct. 18, 2001 15/26 4. optical specification optical characteristics are determined after the unit has been ?on? and stable for approximately 30 minutes in a dark environment at 25 c. the values specified are at an approximate distance 50cm from the lcd surface at a viewing angle of and equal to 0 . [ figure 9 ] presents additional information c oncerning the measurement equipment and method. [figure 9] optical characteristic measurement equipment and method lcd module optical stage(x,y) field = 1 pritchard pr-880 or equivalent 500mm parameter symbol values min. typ. max. units notes contrast ratio surface luminance, white luminance uniformity response time rise time decay time cie color coordinates red green blue white viewing angle x axis, right( =0 ) x axis, left ( =180 ) y axis, up ( =90 ) y axis, down ( =270 ) gray scale(gamma) crosstalk cr l wh white tr tr r tr d xr yr xg yg xb yb xw yw r l u d 200 200 - - - 0.596 0.317 0.278 0.558 0.116 0.089 0.283 0.299 55 55 40 40 - 300 250 - 30 10 20 0.626 0.347 0.308 0.588 0.146 0.119 0.313 0.329 60 60 45 45 2.5 - - 30 50 15 35 0.656 0.377 0.338 0.618 0.176 0.149 0.343 0.359 - - - - - 2.0 cd/m 2 % ms degree % 1 2 3 4 5 6 7 table 8. optical characteristics (ta=25 c, v cc =3.3v, f v =60hz dclk=65mhz, i bl =8ma) product specification lm150x05 liquid crystal display ver. 1.1 oct. 18, 2001 16/26 1. contrast ratio(cr) is defined mathematically as : surface luminance with all white pixels contrast ratio = surface luminance with all black pixels 2. surface luminance is the center point across the lcd surface 50cm from the surface with all pixels displaying white. for more information, see [ figure 10 ]. when i bl =8ma, l wh =200cd/m 2 (min.) 250cd/m 2 (typ.) 3. the variation in surface luminance , white is determined by measuring l on at each test position 1 through 5, and then dividing the maximum l on of 5 points luminance by minimum l on of 5 points luminance. for more information, see [ figure 10 ]. maximum(l on1 ,l on2 , ?.. l on5 ) minimum(l on1 ,l on2 , ?.. l on5 ) white = 100% average(l on1 ,l on2 , ?.. l on5 ) 4. response time is the time required for the display to transition from to black(rise time, tr r ) and from black to white(decay time, tr d ). for additional information, see [ figure 11 ]. 5. viewing angle is the angle at which the contrast 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 12 ]. 6. gray scale specification notes : table 9. gray scale gray level luminance(%) (typ.) l0 [ 0 ire] l7 l15 [ 25 ire] l23 l31 [ 50ire] l39 l47 [ 75 ire] l55 l63 [ 100 ire] 0.24 0.67 3.16 8.48 16.9 29.0 46.3 69.6 100 7. crosstalk is defined as : ( ? l a[or b,c,d]2 -l a[or b,c,d]1 ? / l a[or b,c,d]1 ) 100(%) for more information, see [ figure 13 ]. product specification lm150x05 liquid crystal display ver. 1.1 oct. 18, 2001 17/26 [ figure 1 1 ] response time the response time is defined as the following figure and shall be measured by switching the input signal for ?black? and ?white?. 100 90 10 0 % optical response white black white [ figure 10 ] luminance measuring point product specification lm150x05 liquid crystal display ver. 1.1 oct. 18, 2001 18/26 [ figure 12 ] viewing angle product specification lm150x05 liquid crystal display ver. 1.1 oct. 18, 2001 19/26 5. mechanical characteristics the contents provide general mechanical characteri stics for the model lm 150x05-f3. in addition, the figures in the next page are detailed mechanical drawing of the lcd. outside dimensions horizontal vertical depth horizontal vertical horizontal vertical bezel area active display area weight surface treatment hard coating 3h. anti-glare, lr coating treatment of the front polarizer. 331.3 0.5 m 257.9 0.5 mm 11.0 0.5 mm 308.2 0.5 mm 232.2 0.5 mm 304.128 mm 228.096 mm 1050g(typ.) table 10. mechanical characteristics product specification lm150x05 liquid crystal display ver. 1.1 oct. 18, 2001 20/26 [ figure 14 ] lm150x05 front view product specification lm150x05 liquid crystal display ver. 1.1 oct. 18, 2001 21/26 [ figure 15 ] lm150x05 rear view product specification lm150x05 liquid crystal display ver. 1.1 oct. 18, 2001 22/26 6. reliability { result evaluation criteria } there should be no change which might affect the pr actical display function w hen the display quality test is conducted under normal operating condition. no. test item conditions 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 (non-operating) wave form : random vibration level : 1.0g bandwidth : 10-500hz duration : x,y,z, 20 mins one time each direction 6 shock test (non-operating) shock level : 120g waveform : half sine wave, 2ms direction : x, y, z one time, each direction 7 altitude operating storage / shipment 0 - 10,000 feet( 3,048m) 0 - 40,000 feet(12,192m) table 11. environment test condition product specification lm150x05 liquid crystal display ver. 1.1 oct. 18, 2001 23/26 7. international standards 7-1. safety a) ul 1950 third edition, underwriters laboratories, inc. jan. 28, 1995. standard for safety of information technology equipment including electrical business equipment. b) can/csa c22.2 no. 950-95 third edition, canadian standards association, jan. 28, 1995. standard for safety of information technology equipment including electrical business equipment. c) en 60950 : 1992+a1: 1993+a2: 1993+a3: 1995+a4: 1997+a11: 1997 iec 950 : 1991+a1: 1992+a2: 1993+a3: 1995+a4: 1996 european committee for electrotechnical standardization(cenelec) european standard for safety of informatio n technology equipment including electrical business equipment. 7-2. emc a) ansi c63.4 ?methods of measurement of ra dio-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 measurem ent of radio interface characteristics of information technology equipment.? european comm ittee for electrotechnical standardization (cenelec), 1998 product specification lm150x05 liquid crystal display ver. 1.1 oct. 18, 2001 24/26 8. packing 8-1. designation of lot mark a) lot mark ab c d e f g h i j k l m a,b,c : size d : year e : month f,g : panel code h : assembly code i,j,k,l,m : serial no. note: 1. year b) location of lot mark 2. month 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 box : 8 pcs b) box size : 344mm x 315mm x 410mm. year mark 97 7 98 8 99 9 2000 0 2001 1 2002 2 2003 3 2004 4 2005 5 2006 6 2007 7 month mark jan. 1 feb. 2 mar. 3 apr. 4 may. 5 jun. 6 jul. 7 aug. 8 sep. 9 oct. a nov. b dec. c 3. serial no. serial no. mark 1 ~ 99999 00001 ~ 99999 100000 ~ a0001 ~ a9999,, z9999 product specification lm150x05 liquid crystal display ver. 1.1 oct. 18, 2001 25/26 9. precautions please pay attention to the following when you use this tft lcd module. 9-1. mo unting 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 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 materials for the cover case are not describe because the former generates cor r osive 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 ha nd 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 with petroleum benzene. 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 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 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 afte r fading condensation, smear or spot will occur. (5) when fixed patterns are displayed for a l ong 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. product specification lm150x05 liquid crystal display ver. 1.1 oct. 18, 2001 26/26 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 wrist 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 precaution s 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 el ectricity 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 attached is stored for a long time, sometimes there remains a very small amount of glue still on the 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 absorbent cotton waste or other soft material like chamois soaked with normal-hexane. |
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