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date jun. 11, 2004 -1 t echnical s pecification lcm yes YMS204-03ACBBDCL page 1 of 16 a n s h a n y e s o p t o e l e c t r o n i c s d i s p l a y c o . , l t d s p e c i f i c a t i o n s f o r l i q u i d c r y s t a l d i s p l a y m o d u l e . anshan yes optoelectronics display co.,ltd specifications for liquid crystal display module model no.: YMS204-03ACBBDCL date: jun. 11, 2004 approved checked department customer: model no.: date: approved checked department add: 215# qianshan road,anshan liaoning p.r.china tel: 86-412-5212122 fax: 86-412-5211729 p.c.:114044 e-mail : santlcd @ mail.asptt.ln.cn , sante @ asiansources.com pdf ?? "pdffactory pro" e www.fineprint.com.cn
date jun. 11, 2004 -1 t echnical s pecification lcm yes YMS204-03ACBBDCL page 2 of 16 a n s h a n y e s o p t o e l e c t r o n i c s d i s p l a y c o . , l t d s p e c i f i c a t i o n s f o r l i q u i d c r y s t a l d i s p l a y m o d u l e . list . general specifications -----------------------------------------------------(3-5) . the characteristics and reliability test -------------------------------(6-7) . the equipment and lcd measuring method-------------------------(8-9) . instruction sets ----------------------------------------------------------(10-12) . standard specifications for product quality-------------------------(13-14) . attached drawing ----------------------------------------------------- (15-16) pdf ?? "pdffactory pro" e www.fineprint.com.cn
date jun. 11, 2004 -1 t echnical s pecification lcm yes YMS204-03ACBBDCL page 3 of 16 a n s h a n y e s o p t o e l e c t r o n i c s d i s p l a y c o . , l t d s p e c i f i c a t i o n s f o r l i q u i d c r y s t a l d i s p l a y m o d u l e . .general specifications 1. features a. low power consumption 5.0v power supply b. 1/16 duty,1/5 bias c. viewing direction: 6:00 d. operating tempration:0~50 e. storage tempration:-20~70 f. display mode: stn mode, negative type display 2.mechanical data and conditions: (1) number of characters------------ 20 characters * 4 line (2) module size---------------------------98.0 w * 60.0 h mm (3) viewing area ------------------------ 76.0 w * 25.2 h mm (4) dot size ----------------------------0.55 w * 0.55 h mm (5) character size -----------------------2.95 w * 4.75 h mm (6) outline dimensions------------------see attached drawing 3.pin connections: pin no. symbol function 1 vss ground(0v) 2 vdd logic supply voltage(+5.0v) 3 vee lcd driver voltage input 4 rs data/instruction register select 5 r/w read/write select 6 e enable signal 7-14 db0-db7 data bus line 15-16 led+,- led backlight pdf ?? "pdffactory pro" e www.fineprint.com.cn
date jun. 11, 2004 -1 t echnical s pecification lcm yes YMS204-03ACBBDCL page 4 of 16 a n s h a n y e s o p t o e l e c t r o n i c s d i s p l a y c o . , l t d s p e c i f i c a t i o n s f o r l i q u i d c r y s t a l d i s p l a y m o d u l e . 4. absolute maximum ratings characteristics symbol ratings operating voltage vdd -0.3v to +7.0v driver supply voltage v lcd -0.3v to +13.5v input voltage range v in -0.3v to vdd+0.3v 5.timing characteristics: (vdd=4.5 to 5.5v) write operation item symbol min. typ. max. unit enable cycle time t cycle 400 -- -- ns enable pulse width p weh 150 -- -- ns enable rise & fall time t er ,t ef -- -- 25 ns address set-up time t as 30 -- -- ns address hold time t ah 10 -- -- ns data set-up time t dsw 40 -- -- ns data hold time t h 10 -- -- ns read operation item symbol min. typ. max. unit enable cycle time t cycle 400 -- -- ns enable pulse width p weh 150 -- -- ns enable rise & fall time t er ,t ef - -- 25 ns address set-up time t as 30 -- -- ns address hold time t ah 10 -- -- ns data output delay time t dsw - -- 100 ns data hold time t h 20 -- -- ns pdf ?? "pdffactory pro" e www.fineprint.com.cn
date jun. 11, 2004 -1 t echnical s pecification lcm yes YMS204-03ACBBDCL page 5 of 16 a n s h a n y e s o p t o e l e c t r o n i c s d i s p l a y c o . , l t d s p e c i f i c a t i o n s f o r l i q u i d c r y s t a l d i s p l a y m o d u l e . write operation: rs r/w t as t ah t ah p weh t ef e t er t dsw t h db0?db7 valid data t cycle read operation rs r/w t as t ah t ah p weh t ef e t er t dsw t h db0?db7 valid data t cycle pdf ?? "pdffactory pro" e www.fineprint.com.cn
date jun. 11, 2004 -1 t echnical s pecification lcm yes YMS204-03ACBBDCL page 6 of 16 a n s h a n y e s o p t o e l e c t r o n i c s d i s p l a y c o . , l t d s p e c i f i c a t i o n s f o r l i q u i d c r y s t a l d i s p l a y m o d u l e . .the characteristics and reliability test 1.electro-optic characteristics(module unit): condition:temp=(23 3) no item symbol min. typ. max. unit condition 1 supply voltage(logic) vdd-vss 4.5 5.0 5.5 v 2 supply current (logic) idd ma vdd=5v 4.9 v 0 4.7 v 25 3 lcd operating voltage vdd-v 0 4.5 v 50 ton 181 ms 4 response time toff 86 ms 5 contrast cr 3 12h 1 50 6h 2 65 3h 3 60 6 viewing angel 9h 4 60 deg. (cr 3.0) 7 lcd threshold voltage vth 3.73 v 25 2. characteristics of backlight (led unit) (1).absolute maximum ratings: item symbol rating unit condition forward current ifm 25 ma ta=25 reverse voltage vr 5 v ta=25 power dissipation pd 50 mw ta=25 (2).electrical-optical characteristics: item symbol min typ max unit condition forward voltage voltage vf 3.2 3.4 3.6 v if=20ma reverse current ir 50 ua vr=5v luminous lv 58 83 cd/m 2 if=20ma color white pdf ?? "pdffactory pro" e www.fineprint.com.cn
date jun. 11, 2004 -1 t echnical s pecification lcm yes YMS204-03ACBBDCL page 7 of 16 a n s h a n y e s o p t o e l e c t r o n i c s d i s p l a y c o . , l t d s p e c i f i c a t i o n s f o r l i q u i d c r y s t a l d i s p l a y m o d u l e . 3.reliability test no items test condition equipment test result 1 high temp storage temp:70 2 time:96h restore:24h tenny passed 2 low temp storage temp:-20 3 time:96h restore:24h tenny passed 3 high temp static drive temp:50 2 vop:5v time:24h restore:24h tenny passed 4 low temp static drive temp:0 3 vop:5v time:24h restore:24h tenny passed 5 high temp high hum storage temp:40 2 hum:95%rh time:96h restore:24h tenny passed temp:( ) 70 25 -20 30 5 30 5 6 thermal shock 5 cycles restore:24h tenny passed pdf ?? "pdffactory pro" e www.fineprint.com.cn
date jun. 11, 2004 -1 t echnical s pecification lcm yes YMS204-03ACBBDCL page 8 of 16 a n s h a n y e s o p t o e l e c t r o n i c s d i s p l a y c o . , l t d s p e c i f i c a t i o n s f o r l i q u i d c r y s t a l d i s p l a y m o d u l e . .the equipment and lcd measuring method 1. equipment oscilloscope waveform generator 2. definition (1). threshold voltage (vth) brightness 100% 90% selected waveform 0 vth drive voltage pdf ?? "pdffactory pro" e www.fineprint.com.cn
date jun. 11, 2004 -1 t echnical s pecification lcm yes YMS204-03ACBBDCL page 9 of 16 a n s h a n y e s o p t o e l e c t r o n i c s d i s p l a y c o . , l t d s p e c i f i c a t i o n s f o r l i q u i d c r y s t a l d i s p l a y m o d u l e . (2). response time on off 90% 10% time t r t d (3).viewing angle: z 1 y 12h, =90 9h, =180 4 3 x 3h, =0 2 6h, =270 (4).contrast ratio (positive) brightness of non-selected wave-form cr= brightness of selected wave-form 3. reliability test: equipment : tenny pdf ?? "pdffactory pro" e www.fineprint.com.cn
date jun. 11, 2004 -1 t echnical s pecification lcm yes YMS204-03ACBBDCL page 10 of 16 a n s h a n y e s o p t o e l e c t r o n i c s d i s p l a y c o . , l t d s p e c i f i c a t i o n s f o r l i q u i d c r y s t a l d i s p l a y m o d u l e . .instruction sets 1.instruction table instruction code instruction rs rw db7 db6 db5 db4 db3 db2 db1 db0 description execution time(fosc= 270khz) clear display 0 0 0 0 0 0 0 0 0 1 write?20h? to ddrm and set ddram address to ?00h? from ac 1.52ms return home 0 0 0 0 0 0 0 0 1 - set ddram address to ?00h?from ac and return cursor to its original position if shifted. the contents of ddram are not changed. 1.52ms entry mode set 0 0 0 0 0 0 0 1 i/d s assign cursor moving direction and enable the shift of entire display 38us display on/off control 0 0 0 0 0 0 1 d c b set display(d),cursor (c), and blinking of cursor(b) on/off control bit. 38us cursor or display shift 0 0 0 0 0 1 s/c r/l - - set cursor moving and display shift control bit, and the direction, without changing of ddram data. 38us function set 0 0 0 0 1 dl n f - - set interface data length(dl:8-bit/4bit), numbers of display line (n:2-line/1line) and,display font type (f:5*10dots/5*8dot) 38us set cgram address 0 0 0 1 ac5 ac4 ac3 ac2 ac1 ac0 set cgram address in address counter 38us set ddram address 0 0 1 ac6 ac5 ac4 ac3 ac2 ac1 ac0 set ddram address in counter 38us read busy flag and address counter 0 1 bf ac6 ac5 ac4 ac3 ac2 ac1 ac0 whether during internal operation or not can be known by reading bf. the contents of address counter can also be read. write data to ram 1 0 d7 d6 d5 d4 d3 d2 d1 d0 write data into internal ram (ddrm/cgram). 38us read data from ram 1 1 d7 d6 d5 d4 d3 d2 d1 d0 read data from internal ram (ddram/cgram). 38us pdf ?? "pdffactory pro" e www.fineprint.com.cn
date jun. 11, 2004 -1 t echnical s pecification lcm yes YMS204-03ACBBDCL page 11 of 16 a n s h a n y e s o p t o e l e c t r o n i c s d i s p l a y c o . , l t d s p e c i f i c a t i o n s f o r l i q u i d c r y s t a l d i s p l a y m o d u l e . 2.reset function (1).8-bit interface power on wait time>15ms wait time>40ms after vdd>4.5v after vdd>2.7v rs r/w db7 db6 db5 db4 db3 db2 db1 db0 bf cannot be checked before this instruction. 0 0 0 0 1 1 * * * * function set(interface is 8 bits length.) wait time>4.1ms rs r/w db7 db6 db5 db4 db3 db2 db1 db0 bf cannot be checked before this instruction. 0 0 0 0 1 1 * * * * function set(interface is 8 bits length.) wait time>100us rs r/w db7 db6 db5 db4 db3 db2 db1 db0 bf cannot be checked before this instruction. 0 0 0 0 1 1 * * * * function set(interface is 8 bits length.) bf can be checked after the following instructions. function set(interface is 8 bits length. specify the number of display lines and character font.) the number of display lines and character font cannot be changed afterwards. rs r/w db7 db6 db5 db4 db3 db2 db1 db0 0 0 0 0 1 1 n f * * 0 0 0 0 0 0 1 0 0 0 display off 0 0 0 0 0 0 0 0 0 1 0 0 0 0 0 0 0 1 i/d s display clear initialization ends entry mode set pdf ?? "pdffactory pro" e www.fineprint.com.cn
date jun. 11, 2004 -1 t echnical s pecification lcm yes YMS204-03ACBBDCL page 12 of 16 a n s h a n y e s o p t o e l e c t r o n i c s d i s p l a y c o . , l t d s p e c i f i c a t i o n s f o r l i q u i d c r y s t a l d i s p l a y m o d u l e . (2).4-bit interface power on wait time>15ms wait time>40ms after vdd>4.5v after vdd>2.7v rs r/w db7 db6 db5 db4 bf cannot be checked before this instruction. 0 0 0 0 1 1 function set(interface is 8 bits length.) wait time>4.1ms rs r/w db7 db6 db5 db4 bf cannot be checked before this instruction. 0 0 0 0 1 1 function set(interface is 8 bits length.) wait time>100us rs r/w db7 db6 db5 db4 bf cannot be checked before this instruction. 0 0 0 0 1 1 function set(interface is 8 bits length.) bf can be checked after the following rs r/w db7 db6 db5 db4 instructions. 0 0 0 0 1 0 function set(set interface to be 4 bits 0 0 0 0 1 0 length)interface is 8 bits length. 0 0 n f * * function set (interface is 4 bits length. 0 0 0 0 0 0 specify the number of the display lines 0 0 1 0 0 0 and character font.) 0 0 0 0 0 0 the number of display lines and character 0 0 0 0 0 1 font cannot be changed afterwards. 0 0 0 0 0 0 display off 0 0 0 1 i/d s display clear entry mode set initialization ends pdf ?? "pdffactory pro" e www.fineprint.com.cn
date jun. 11, 2004 -1 t echnical s pecification lcm yes YMS204-03ACBBDCL page 13 of 16 a n s h a n y e s o p t o e l e c t r o n i c s d i s p l a y c o . , l t d s p e c i f i c a t i o n s f o r l i q u i d c r y s t a l d i s p l a y m o d u l e . .standard specifications for product quality 1. manner of test: 1.1.the test must be under 40w flourescent light, and the distance of view must be at 30cm. 1.2.the test direction is based on around 15 - 45 of vertical line. 2. definition of defects 2.1 major defects a:non-display b:segment missing c:over current d:segment short e:sealant dishardexn f:wrong polarizer direction 2.2minor defects: the others. 3.major defects should be in aql 0.25,and the minor in aql 1.00 pdf ?? "pdffactory pro" e www.fineprint.com.cn
date jun. 11, 2004 -1 t echnical s pecification lcm yes YMS204-03ACBBDCL page 14 of 16 a n s h a n y e s o p t o e l e c t r o n i c s d i s p l a y c o . , l t d s p e c i f i c a t i o n s f o r l i q u i d c r y s t a l d i s p l a y m o d u l e . 4.inspection item and standards item the standard of quality inspection checking manner quality ratio frame smooth and even surface,no crack,no scratch,no rusty,and not be wrenched out of shape.the range between convex and concave is:d 0.35mm,and the frame must be connected to the ground. checking with eyes and using vernier caliper, multimeter 100% lcd the major defects would be reject.no scratch and no dusty on the lcd glass surface.d 0.15mm n 2 diameter of bubble:d 0.5 n 2 damaged size of polarizer:d 0.15mm, n 2. check it when displaying 100% the relative position of lcd and frame the sealant mouth of the lcd must be at the same side with the frame?s. checking with eyes 100% the relative position of pcb paneland frame the frame installing direction must be correct.the twisted angle of the pin is from 45 to 60 ,the pin is vertical to pcb panel and it must be in the middle position of the installing holes. checking with eyes 100% function test 1. the major defects must be reject. 2. test flow chart (see attached chart) 3. background changes evenly and no disorderly displaying phenomenon. 4. display no shortage. check it when displaying 100% note:d diameter n quantity unit:mm pdf ?? "pdffactory pro" e www.fineprint.com.cn
date jun. 11, 2004 -1 t echnical s pecification lcm yes YMS204-03ACBBDCL page 15 of 16 a n s h a n y e s o p t o e l e c t r o n i c s d i s p l a y c o . , l t d s p e c i f i c a t i o n s f o r l i q u i d c r y s t a l d i s p l a y m o d u l e . pdf ?? "pdffactory pro" e www.fineprint.com.cn
date jun. 11, 2004 -1 t echnical s pecification lcm yes YMS204-03ACBBDCL page 16 of 16 a n s h a n y e s o p t o e l e c t r o n i c s d i s p l a y c o . , l t d s p e c i f i c a t i o n s f o r l i q u i d c r y s t a l d i s p l a y m o d u l e . pdf ?? "pdffactory pro" e www.fineprint.com.cn

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