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1 ? 1 winstar display co., ltd A???? ?? : 407 ? 163 ? no.163 chung ching rd. , taichune, taiwan, r.o.c web: http://www.winstar.com.tw e-mail: winstar@winstar.com.tw tel:886-4-24262208 fax 886-4-2426220 7 specification customer : module no.: WG12864A-TMI-T approved by: ( for customer use only ) sales by approved by checked by prepared by issued date:
2 ? 2 contents 1.module classification information 2.precautions in use of lcd modules 3.general specification 4.absolute maximum ratings 5.electrical characteristics 6.optical characteristics 7.interface description 8.contour drawing & block diagram 9. timing characteristics 10.display control instruction 11.detailed explanation 12.quality assurance 13.reliability 14.backlight information
3 ? 3 1.module classification information w g 1 2 8 6 4 a t m i t c d e f g h i j c brand winstar display corporation d display type h character type, g graphic type e display font 128 x 64 dots f model serials no. g backlight type n without backlight b el, blue green d el, green w el, white f ccfl, white y led, yellow green t led, white a led, amber r led, red o led, orange g led, green h lcd mode b tn positive, gray t fstn negative n tn negative, g stn positive, gray y stn positive, yellow green m stn negative, blue f fstn positive i lcd polarize type/ temperature range/ view direction a reflective, n.t, 6:00 d reflective, n.t, 12:00 g reflective, w. t, 6:00 j reflective, w. t, 12:00 b transflective, n.t,6:00 e transflective, n.t.12:00 h transflective, w.t,6:00 k transflective, w.t,12:00 c transmissive, n.t,6:00 f transmissive, n.t,12:00 i transmissive, w. t, 6:00 l transmissive, w.t,12:00 j special code t : build in negative voltage & temperature compensation
4 ? 4 2.precautions in use of lcd modules (1)avoid applying excessive shocks to the module or making any alterations or modifications to it. (2)don?t make extra holes on the printed circuit board, modify its shape or change the components of lcd module. (3)don?t disassemble the lcm. (4)don?t operate it above the absolute maximum rating. (5)don?t drop, bend or twist lcm. (6)soldering: only to the i/o terminals. (7)storage: please storage in anti-static electricity container and clean environment. 3.general specification item dimension unit number of characters 128 x 64 dots module dimension 93 x 70.0 x 13.6(max) mm view area 72.0 x 40.0 mm active area 66.52 x 33.24 mm dot size 0.48 x 0.48 mm dot pitch 0.52 x 0.52 mm lcd type stn, negative, transmissive ,blue duty 1/64 view direction 6 o?clock backlight type led white
5 ? 5 4.absolute maximum ratings item symbol min typ max unit operating temperature t op -20 +70 storage temperature t st -30 +80 input voltage v i 0 v dd v supply voltage for logic v dd 0 6.7 v supply voltage for lcd v dd -v ss 0 16.7 v supply voltage for lcd v dd -v out -10 v 5.electrical characteristics item symbol condition min typ max unit supply voltage for logic v dd -v ss 4.5 5.0 5.5 v supply voltage for lcd v dd -v 0 ta=-20 ta=25 ta=+70 7.6 9.1 10.6 v v v input high volt. v ih 0.7v dd v dd v input low volt. v il 0 0.3v dd v output high volt. v oh 2.4 v output low volt. v ol 0.4 v supply current i dd 5 7.5 ma
6 ? 6 6.optical characteristics item symbol condition min typ max unit (v) cr R 2 10 105 deg view angle (h) cr R 2 -30 30 deg contrast ratio cr 3 t rise 200 300 ms response time t fall 200 300 ms definition of operation voltage (vop) definition of response time ( tr , tf ) driving voltage(v) intensity cr max 100 vop selected wave non-selected wave [positive type] cr = lon / loff intensity 90 100 tr 10 tf non-selected conition non-selected conition selected conition [positive type] conditions : operating voltage : vop viewing angle( ? ) : 0 ? 0 frame frequency : 64 hz driving waveform : 1/n duty , 1/a bias definition of viewing angle(cr R 2) f = 180 = 90 = 0 = 270 b r l
7 ? 7 7.interface description pin no. symbol level description 1 v ss 0v ground 2 v dd 5.0v supply voltage for logic 3 v o (variable) operating voltage for lcd 4 d/i h/l h: data , l : instruction 5 r/w h/l h: read (mpu module) , l: write (mpu module) 6 e h enable signal 7 db0 h/l data bit 0 8 db1 h/l data bit 1 9 db2 h/l data bit 2 10 db3 h/l data bit 3 11 db4 h/l data bit 4 12 db5 h/l data bit 5 13 db6 h/l data bit 6 14 db7 h/l data bit 7 15 cs1 h select column 1~ column 64 16 cs2 h select column 65~ column 128 17 rst l reset signal 18 vout negative voltage 19 a power supply for led backlight ( + ) 20 k power supply for led backlight ( - )
8 ? 8 8.contour drawing &block diagram
9 ? 9 mpu 80 series d/i r/w e db0~db7 or 68 series 128x64 dot seg driver seg driver seg1~64 seg65~128 f r , m , c l , c l k 1 , c l k 2 b i a s a n d p o w e r c i r c u i t g e n e r a t o r n . v . led b/l drive method 1.drive from a,k b/l r a k external contrast adjustment. ks0108 ks0108 c o m d r i v e r c o m 1 ~ 6 4 k s 0 1 0 7 cs1 cs2 10k~20k vout vr vo vss vdd res r (contrast performance may go down.) b/l lcm k a (will never get vee output from pin19) 3.drive from vdd,vss r 2.drive from pin19, pin20 a b/l lcm k r db4 12 14 13 db6 db5 vss 1 e 7 11 10 8 9 db3 db2 db1 db0 4 6 5 3 2 r/w d/i vo vdd dot size db7 cs1 15 7 0 . 0 0 . 5 5 0 . 2 4 0 . 0 ( v a ) 3 3 . 2 4 ( a a ) 88.0 20- 1.0 pth p2.54*19=48.26 1.8 20 2 . 5 1 1.6 72.0(va) 93.0 0.5 80.0 66.52(aa) 10.5 7.0 13.6 max 9.0 vout cs2 res 16 18 17 k a 19 20 13.24 1 8 . 3 8 1 5 . 0 9 . 9 14.0 2.5 2 . 5 4 - 2 . 5 p t h 4 - 6 . 5 p a d led b/l 0.48 0.52 0 . 4 8 0 . 5 2 recommanded value (1) v led = 4.2v, i led = 330ma r = 2.4 (1/2 watt) the non-specified tolerance of dimension is 0.3mm. (2) v led = 4.2v, i led = 120ma r = 6.7 (1/2 watt) 9.timing characteristics
10 ? 10 mpu interface (t=25 , vdd=+5.0v0.5) characteristic symbol min typ max unit e cycle tcyc 1000 ns e high level width twhe 450 ns e low level width twle 450 ns e rise time tr 25 ns e tall time tf 25 ns address set-up time tas 140 ns address hold time tah 10 ns data set-up time tdsw 200 ns data delay time tddr 320 ns data hold time (write) tdhw 10 ns data hold time (read) tdhr 20 ns e r/w cs1,cs2,d/i db0 to db7 2.0v 0.8v tw h e tr tf tah tas tah 2.0v 0.8v tdsw tdhw tcyc tw ie tas mpu write timing e r/w cs1,cs2,d/i db0 to db7 2.0v 0.8v 2.0v 0.8v tddr tdhr tw he tr tf tah tas tas tah 2.0v 0.8v tcyc tw ie mpu read timing
11 ? 11 10.display control instruction the display control instructions control the internal state of the ks0108b. instruction is received from mpu to ks0108b for the display control. the following table shows various instructions instruction d/i r/ w db7 db6 db5 db4 db3 db2 db1 db0 function display on/off 0 0 0 0 1 1 1 1 1 0/1 controls the display on or off. internal status and display ram data are not affected. 0:off, 1:on set address 0 0 0 1 y address (0~63) sets the y address in the y address counter. set page (x address) 0 0 1 0 1 1 1 page (0 ~7) sets the x address at the x address register. display start line 0 0 1 1 display start line(0~63) indicates the display data ram displayed at the top of the screen. status read 0 1 b u s y 0 on/ off r e s e t 0 0 0 0 read status. busy 0:ready 1:in operation on/off 0:display on 1:display off reset 0:normal 1:reset write display data 1 0 display data writes data (db0:7)into display data ram. after writing instruction, y address is increased by 1 automatically. read display data 1 1 display data reads data (db0:7) from display data ram to the data bus.
12 ? 12 11.detailed explanation display on/off the display data appears when d is and disappears when d is 0. though the data is not on the screen with d = 0, it remains in the display data ram. therefore, you can make it appear by changing d = 0 into d = 1. display start line z address aaaaaa ( binary ) of the display data ram is set in the display start line register and displayed at the top of the scree n. figure 2. shows examples of display ( 1/64 duty cycle ) when the start line = 0-3. when the display duty cycle is 1/64 or more ( ex. 1/32, 1/24 etc. ), the data of total line number of lcd screen, from the line specified by display start line instruction, is displayed set page ( x address ) x address aaa ( binary ) of the display data ram is set in the x address register. after that, writing or reading to or from mpu is executed in this specified page until the next page is set. see figure 1. r/w d/i db7 db6 db5 db4 db3 db2 db1 db0 0 0 0 0 1 1 1 1 1 d r/w d/i db7 db6 db5 db4 db3 db2 db1 db0 0 0 1 1 a a a a a a r/w d/i db7 db6 db5 db4 db3 db2 db1 db0 0 0 1 0 1 1 1 a a a
13 ? 13 set y address y address aaaaaa ( binary ) of the display data ram is set in the y address counter. after that, y address counter is increased by 1 every time the data is written or read to or from mpu. status read busy when busy is 1, the lsi is executing internal operations. no instruction are accepted while busy is 1, so you should make sure that busy is 0 before writing the next instruction. on/off shows the liquid crystal display condition: on condition or off condition. when on/off is 1, the display is in off condition. when on/off is 0, the display is in on condition reset reset = 1 shows that the system is being initialized. in this condition, no instructions except status read can be accepted. reset = 0 shows that initializing has system is in the usual operation condition. write display data r/w d/i db7 db6 db5 db4 db3 db2 db1 db0 0 0 0 1 a a a a a a r/w d/i db7 db6 db5 db4 db3 db2 db1 db0 0 1 busy 0 on/off reset 0 0 0 0 r/w d/i db7 db6 db5 db4 db3 db2 db1 db0 0 0 d d d d d d d d
14 ? 14 writes 8-bit data dddddddd ( binary ) into the display data ram. the y address is increased by 1 automatically. read display data reads out 8-bit data dddddddd ( bi nary ) from the display data ram. then y address is increased by 1 automatically. one dummy read is necessary right after the address setting. for details, refer to the explanation of output register in ?function of each block?. r/w d/i db7 db6 db5 db4 db3 db2 db1 db0 1 1 d d d d 1 d d d 0 1 2 616263 db0 to db7 to db7 db0 db7 db0 to to db7 db0 x = 0 x = 1 x = 6 x = 7 y address page 0 page 1 page 6 page 7 figure 1.
15 ? 15 start line = 0 com 6 com 64 com 61 com 62 com 63 com 60 com 9 com 8 com 7 com 2 com 5 com 4 com 3 com 1 com 6 start line = 1 com 64 com 61 com 62 com 63 com 60 com 9 com 8 com 7 com 2 com 5 com 4 com 3 com 1 com 6 start line = 3 com 64 com 61 com 62 com 63 com 60 com 9 com 8 com 7 com 2 com 5 com 4 com 3 com 1 com 1 com 3 com 4 com 5 com 2 com 7 com 8 com 9 com 60 com 63 com 62 com 61 com 64 com 6 start line = 4 fi g ure 2.
16 ? 16 12. quality assurance screen cosmetic criteria no. defect judgment criterion partition 1 spots a)clear size: d mm acceptable qty in active area d Q 0.1 disregard 0.1 17 ? 17 13.reliability content of reliability test ***supply voltage for logic system=5v. supply volta ge for lcd system =operating voltage at 25 environmental test test item content of test test condition applicable standard high temperature storage endurance test applying the high storage temperature for a long time. 80 200hrs ?? low temperature storage endurance test applying the high storage temperature for a long time. -30 200hrs ?? high temperature operation endurance test applying the electric stress (voltage & current) and the thermal stress to the element for a long time. 70 200hrs ?? low temperature operation endurance test applying the electric stress under low temperature for a long time. -20 200hrs ?? high temperature/ humidity storage endurance test applying the high temperature and high humidity storage for a long time. 80 ,90%rh 96hrs ?? high temperature/ humidity operation endurance test applying the electric stress (voltage & current) and temperature / humidity stress to the element for a long time. 70 ,90%rh 96hrs ?? temperature cycle endurance test applying the low and high temperature cycle. -30 25 80 30min 5min 30min 1 cycle -30 /80 10 cycles ?? mechanical test vibration test endurance test applying the vibration during transportation and using. 10~22hz 1.5mmp-p 22~500hz 1.5g total 0.5hrs ?? shock test constructional and mechanical endurance test applying the shock during transportation. 50g half sign wave 11 msedc 3 times of each direction ?? atmospheric pressure test endurance test applying the atmospheric pressure during transportation by air. 115mbar 40hrs ?? others static electricity test endurance test applying the electric stress to the terminal. vs=800v,rs=1.5k cs=100pf 1 time ??
18 ? 18 14.backlight information specification parameter symbol min typ max unit test condition supply current iled 80 120 ma v=3.5v supply voltage v 3.5 3.7 v reverse voltage vr 5 v luminous intensity iv 20 cd/m 2 iled=80ma wave length p nm iled=80ma life time 10k hr. v Q 3.5v color white

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