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specification s for lcd module model no. BC2004DFNOJH$ ver.01 for messrs: ________________________________________________ on date of: ________________________________________________ approved by: ________________________________________________ bolymin, inc. 5f, no.38,keya road , daya township, taichung count y 42878, taiwan, r.o.c. web site: http://www.bolymin.com.tw tel:+886-4-25658689 fax:+886-4-25658698 free datasheet http:///
BC2004DFNOJH$ - 2 - history of version version contents date note 01 new version 2012/03/23 spec. free datasheet http:///
BC2004DFNOJH$ - 3 - c o n t e n t s 1. numbering system 2. precautions in use of lcd modules 3. general specification 4. absolute maximum rating 5. electrical characteristics 6. optical characteristics 7. interface pin function 8. power supply for lcd module and lcd operating volta ge adjustment 9. backlight information 10. quality assurance 11. reliability 12. appendix (drawing, st7066 controller data) 12-1 drawing 12-2 st7066 controller data 12-2.1 function description 12-2.2 c.g rom table. table 2 12-2.3 instruction table 12-2.4 timing characteristics 12-2.5 initializing soft ware of lcm free datasheet http:///
BC2004DFNOJH$ - 4 - 1. numbering system b c 2004 d f n o j h $ 0 1 2 3 4 5 6 7 8 9 0 brand bolymin 1 module type c= character type g= graphic type p= tab/tcp type o= cog type f= cof type l=pled/oled 2 format 2002=20 characters, 2 lines 12232= 122 x 32 dots 3 version no. a type 4 lcd color g=stn/gray y=stn/yellow-green pled/yellow-green c=color stn,oled/rgb b=stn/blue,oled/blue f=fstn t=tn d=oled/blue+yellow a=oled/blue+yellow+green 5 lcd type r=positive/reflective p=positive/transflective m=positive/transmissive n=negative/transmissive 6 backlight type/color l=led array/ yellow-green h=led edge/white r=led array/red g=led edge/yellow-green f=rgb q=led edge/red n=no backlight d=led edge/blue e=el/white b=el/blue c=ccfl/white y=led bottom/yellow o=led array/orange k=led edge/green a=led edge/amber 7 cgram font (applied only on character type) j=english/japanese font e=english/european font g=chinese(simple) f=chinese(traditional) c=english/cyrillic font h=english/hebrew font a=english/arabic font 8 view angle/ operating temperature b=bottom/normal temperature h=bottom/wide temperature u=bottom/ultra wide temperature t=top/normal temperature w=top/wide temperature c=9h/normal temperature e=top/ultra wide temperature 9 special code 3=3 volt logic power supply n=negative voltage for lcd c=cable/connector xxx=to be assigned on datasheet t=temperature compensation for lcd p=touch panel $=rohs free datasheet http:///
BC2004DFNOJH$ - 5 - 2. precaution in use of lcd module (1) avoid applying excessive shocks to the module or ma king any alterations or modifications to it. (2) dont make extra holes on the printed circuit board , modify its sha pe or change the components of lcd module. (3) dont disassemble the lcm. (4) dont operate it above the absolute maximum rating. (5) dont 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. (8) dont touch the elastmer connecter, especially inse rt a backlight panel (el or ccfl) 3. general specification (1) mechanical dimension item dimension unit number of characters 20characters x4 lines module dimension ( l x w x h ) 77.0 x 47.0 x 11.9 (max)led b/l mm view area 60.0 x 22.0 mm active area 55.1 x 17.56 mm character size ( l x w ) 2.3 x 4.03 mm character pitch ( l x w ) 2.78 x 4.51 mm (2) controller ic: st7066 (or equivalent) controller (3) temperature range wide operating -20 ~+70 storage -30 ~+80 free datasheet http:///
BC2004DFNOJH$ - 6 - 4. absolute maximum ratings 4.1 electrical absolute maximum ratings (vss=0v, ta=25 ) item symbol min max unit supply voltage (logic) vdd-vss -0.3 7 v supply voltage (lcd driver) vdd-vo -0.3 10 v input voltage v i vss vdd v wide temperature type top -20 +70 tstg -30 +80 4.2 environmental absolute maximum ratings operating storage (min.) (max.) (min.) (max.) humidity note(2) note(2) without condensation vibration -- 4.9m/s 2 -- 19.6m/s 2 xyz direction shock -- 29.4m/s 2 -- 490m/s 2 xyz direction note (1) ta = 0 s 50hr max. note (2) ta Q 40 90% rh max ta > 40 absolute humidity must be lower than the humidity o f 90% at 40 free datasheet http:///
BC2004DFNOJH$ - 7 - 5. electrical characteristics item symbol condition min typ max unit supply voltage for logic vdd-vss 4.5 5.5 v supply voltage for lcd wide temp type ta=-20 5.5 v ta=0 v ta=25 4.5 v ta=50 v ta=+70 3.8 v input high volt. v ih 0.7v dd vdd v input low volt. v il 0.6 v output high volt. v oh 0.8v dd v output low volt. v ol 0.4 v supply current idd vdd=5v 1.6 ma free datasheet http:///
BC2004DFNOJH$ - 8 - 6. optical characteristics a. fstn item symbol condition min. typ. max. unit view angle (v) cr R2 10 60 deg (h) cr R 2 -45 45 deg contrast ratio cr 5 response time 25 t rise 100 150 ms t fall 150 200 ms free datasheet http:///
BC2004DFNOJH$ - 9 - 6.1 definitions view angles contrast ratio response time lcd z y x q f ( best visual angle direction ) ( visual angle direction ) brightness at non-selected state ( bns ) brightness at selected state ( bs ) non-selected state operating voltage for lcd driving cr = selected state b r i g h t n e s s ( % ) bns bs 1 0 0 % 90 % rise time decay time ( fall time tf ) b r i g h t n e s s selected condition nonselected condition nonselected condition tr td 10 % free datasheet http:///
BC2004DFNOJH$ - 10 - 7. interface pin function pin no. symbol level description 1 vss 0v ground 2 vdd 5.0v supply voltage for logic (+3v option) 3 vo (variable) operating voltage for lcd 4 rs h/l h:data, l:instruction code 5 r/w h/l h:read(mpu module)l:write(mpu module) 6 e h,h l chip 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 a / vee power supply for led backlight ( + ) negative voltage output 16 k power supply for led backlight (gnd ) free datasheet http:///
BC2004DFNOJH$ - 11 - 8. power supply for lcd module and lcd operating vo ltage a adjustment standart type dc 5v vr (recomment) vdd lcm vss vo typ.: 4.5v free datasheet http:///
BC2004DFNOJH$ - 12 - 9. backlight information 9.1 specification (1) led array / red parameter symbol min typ max unit test condition supply current iled 180 ma v= 3.8v supply voltage v 3.9 4.2 v iled=180ma reverse voltage vr 5 v wave length p 583 593 nm iled=180ma luminous intensity iv 500 - cd/m 2 iled=180ma life time 20000 hr. v Q 4.0v color amber 9.2 backlight driving methods a. led b/l drive from pin15 (led+) pin16 (led-) a.1 array / red free datasheet http:///
BC2004DFNOJH$ - 13 - 10. quality assurance 10.1 inspection conditions the lcd shall be inspected under 40w white fluorescen t light. 45 definition of applicable zones b l c d b e z e l p c b a : a r e a b : n o n - d i s p l a y a r e a d i s p l a y a free datasheet http:///
BC2004DFNOJH$ - 14 - 10.2 inspection parameters no. parameter criteria 1 black or white spots zone dimension acceptable number class of defects acceptable level a b d0.15 * * minor 2.5 0.15QdQ0.2 4 4 0.2QdQ0.25 2 2 dQ0.3 0 1 d=(long + short)/2 *: disregard 2 scratch, substances zone x(mm) y(mm) acceptable number class of defects acceptable level a b * 0.04R w * * minor 2.5 3.0R l 0.06R w 4 4 2.0R l 0.08R w 2 3 0.1w 0 1 x: length y: width *: disregard total defects should not exceed 4/module 3 air bubbles ( between glass & polarizer) zone dimension acceptable number class of defects acceptable level a b dQ0.15 * * minor 2.5 0.15dQ0.5 2 * 0.5d 0 1 *: disregard total defects shall not excess 3/module. free datasheet http:///
BC2004DFNOJH$ - 15 - y x (x+y)/2 Q0.3mm 0.152 0.152 should not be connected to next pixel (2) pixel shape (3) pin hole x y (less than 0.1mm is no counted) (1) pixel shape uniformity total acceptable number : 1/pixel,5/cell (x+y)/2Q0.2mm 4 (4)deformation (with dent) (with projection) free datasheet http:///
BC2004DFNOJH$ - 16 - 11. reliability content of reliability test environmental test no. test item content of test test condition applicable standard 1 high temperature storage endurance test applying the high storage temperature for a long time. 80 96hrs 2 low temperature storage endurance test applying the high storage temperature for a long time. -30 96hrs 3 high temperature operation endurance test applying the electric stress (voltage & current) and the thermal stress to the element for a long time. 70 96hrs 4 low temperature operation endurance test applying the electric stress under low temperature for a long time. -20 96hrs 5 humidity test endurance test applying the high humidity storage for a long time. 40 ,90%rh 96hrs 6 thermal shock test endurance test applying the low and high temperature cycle. -20 25 70 30min 5min 30min 1 cycle -20 / 70 5 cycles 7 vibration test endurance test applying the vibration during transportation and using. total fixed amplitude:1.5mm vibration frequency :10~55hz one cycle 60 seconds to 3 direction of x,y,z for each 15minutes ***supply voltage for logic system=5v. supply volta ge for lcd system =operating voltage at 25 free datasheet http:///
BC2004DFNOJH$ - 17 - 12. appendix ( drawing , st7066 controller data) 12-1 drawing free datasheet http:///
BC2004DFNOJH$ - 18 - ac (hexadecimal) 12-2. st7066 controller data 12-2.1 function description the lcd display module is built in a lsi controller , the controller has two 8-bit registers, an instru ction register (ir) and a data register (dr). the ir stores instruction codes, such as display cl ear and cursor shift, and address information for d isplay data ram (ddram) and character generator (cgram). t he ir can only be written from the mpu. the dr temporarily stores data to be written or rea d from ddram or cgram. when address information is written into the ir, then data is st ored into the dr from ddram or cgram. by the register selector (rs) signal, these two registers can be selected. rs r/w operation 0 0 ir write as an internal operation (display clea r, etc.) 0 1 read busy flag (db7) and address counter (db0 t o db7) 1 0 write data to ddram or cgram (dr to ddram or cg ram) 1 1 read data from ddram or cgram (ddram or cgram t o dr) busy flag (bf) when the busy flag is 1, the controller lsi is in t he internal operation mode, and the next instructio n will not be accepted. when rs=0 and r/w=1, the busy fla g is output to db7. the next instruction must be written after ensuring that the busy flag is 0. address counter (ac) the address counter (ac) assigns addresses to both ddram and cgram display data ram (ddram) this ddram is used to store the display data repres ented in 8-bit character codes. its extended capacity is 80 8 bits or 80 characters. below figure is the relat ionship between ddram addresses and positions on the liquid crystal display. high bits low bits example:ddram addresses 4e ac6 ac5 ac4 ac3 ac2 ac1 ac0 1 0 0 1 1 1 0 ddram address free datasheet http:///
BC2004DFNOJH$ - 19 - display position ddram address 1 2 3 4 5 ~ 16 17 18 19 20 00 01 02 03 04 ~ 0f 10 11 12 13 40 41 42 43 44 ~ 4f 50 51 52 53 14 15 16 17 18 ~ 23 24 25 26 27 54 55 56 57 58 ~ 63 64 65 66 67 example: 4-line by 20-character display character generator rom (cgrom) the cgrom generate 5 8 dot or 5 10 dot character patterns from 8-bit character code s. see table 2. character generator ram (cgram) in cgram, the user can rewrite character by program . for 5 8 dots, eight character patterns can be written, and for 5 10 dots, four character patterns can be written. write into ddram the character code at the addresse s shown as the left column of table 1. to show the character patterns stored in cgram. free datasheet http:///
BC2004DFNOJH$ - 20 - relationship between cgram addresses, character cod es (ddram) and character patterns (cgram data) f o r 5 * 8 d o t c h a ra c te r p a tte rn s c h arac ter c o d e s ( d d r a m d a ta ) c g r a m a d d re ss c h arac ter p a ttern s ( c g r a m d a ta ) 5 4 3 2 1 0 6 7 5 4 3 2 0 1 7 6 5 4 3 2 1 0 0 0 0 0 0 1 1 0 0 1 0 1 0 1 0 0 1 1 1 1 0 1 1 1 0 0 0 0 0 1 1 0 0 1 0 1 0 1 0 0 1 1 1 1 0 1 1 1 0 0 0 0 0 1 0 1 0 0 1 1 1 1 0 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 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 1 0 0 0 0 * 1 1 1 0 0 0 0 * 0 0 0 0 0 0 0 * 0 0 1 h ig h l o w h ig h l o w h ig h l o w f o r 5 * 1 0 d o t c h a ra cter p atte rn s c h arac ter c o d e s ( d d r a m d a ta ) c g r a m a d d re ss c h arac ter p a ttern s ( c g r a m d a ta ) 7 h ig h l o w 4 5 6 3 2 1 0 h ig h l o w 5 4 3 2 1 0 h ig h l o w 7 6 5 4 1 2 3 0 * * * 0 0 0 0 0 0 0 0 0 0 * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * 0 0 0 0 0 0 0 1 0 0 1 0 0 0 1 1 0 1 0 0 0 1 0 1 0 1 1 0 0 1 1 1 1 0 0 0 1 0 0 1 1 0 1 0 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 0 0 0 0 0 0 0 0 0 0 0 0 0 c h a ra c te r p a tte rn ( 1 ) c u rso r p a tte rn c h a ra c te r p a tte rn ( 2 ) c u rso r p a tte rn c h a ra c te r p a tte rn c u rso r p a tte rn : " h ig h " free datasheet http:///
BC2004DFNOJH$ - 21 - 13-2.2 c.g rom table.table 2 code j: english C japanese font llll lllh llhl llhh lhll lhlh lhhl lhhh hlll hllh hlhl hlhh hhl l hhlh hhhl upper 4 bit lower 4 bit llll lllh llhl llhh lhll lhlh lhhl lhhh hlll hllh hlhl hlhh hhll hhlh hhhl hhhh hhhh cg ram ( 1 ) ( 2 ) ( 3 ) ( 4 ) ( 5 ) ( 6 ) ( 7 ) ( 8 ) ( 1 ) ( 2 ) ( 3 ) ( 4 ) ( 5 ) ( 6 ) ( 7 ) ( 8 ) free datasheet http:///
BC2004DFNOJH$ - 22 - 13-2.3 instruction table dont care instructio n instruction code description execution time (fosc=270k hz) rs r/w db7 db6 db5 db4 db3 db2 db1 db0 clear display 0 0 0 0 0 0 0 0 0 1 write 00h to ddram and set ddram address to 00h from ac 1.53ms 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. 1.53ms entry mode set 0 0 0 0 0 0 0 1 i/d sh assign cursor moving direction and enable the shift of entire display. 39 s 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. 39 s 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. 39 s function set 0 0 0 0 1 dl n f set interface data length (dl:8-bit/4-bit), numbers of display line (n:2-line/1-line)and, display font type (f:5 11 dots/5 8 dots) 39 s set cgram address 0 0 0 1 ac5 ac4 ac3 ac2 ac1 ac0 set cgram address in address counter. 39 s set ddram address 0 0 1 ac6 ac5 ac4 ac3 ac2 ac1 ac0 set ddram address in address counter. 39 s read busy flag and address 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. 0 s write data to ram 1 0 d7 d6 d5 d4 d3 d2 d1 d0 write data into internal ram (ddram/cgram). 43 s read data from ram 1 1 d7 d6 d5 d4 d3 d2 d1 d0 read data from internal ram (ddram/cgram). 43 s free datasheet http:///
BC2004DFNOJH$ - 23 - 13-2.4 timing characteristics 13-2.4.1 write operation ta=25 ,vdd=5.0 0.5v item symbol min typ max unit enable cycle time t cyce 1200 ns enable pulse width (high level) pw eh 140 ns enable rise/fall time t er ,t ef 25 ns address set-up time (rs, r/w to e) t as 0 ns address hold time t ah 10 ns data set-up time t dsw 40 ns data hold time t h 10 ns vih1 vil1 vih1 vil1 vil1 t cyce vih1 vil1 vih1 vil1 vil1 t as t ah t ah t ef t h t dsw pw eh t er vil1 vih1 vil1 vih1 vil1 rs r/w e db0 to db7 valid data free datasheet http:///
BC2004DFNOJH$ - 24 - 13-2.4.2 read operation ta=25 ,vdd=5.0 0.5v item symbol min typ max unit enable cycle time t cyce 1200 ns enable pulse width (high level) pw eh 140 ns enable rise/fall time t er ,t ef 25 ns address set-up time (rs, r/w to e) t as 0 ns address hold time t ah 10 ns data delay time t ddr 100 ns data hold time t dhr 10 ns vih1 vil1 vih1 vil1 t cyce voh1 vol1* t as t ah t ah t ef t dhr pw eh t er vil1 vih1 vil1 vih1 vil1 rs r/w e db0 to db7 vih1 vih1 voh1 *vol1 valid data t ddr note: *vol1 is assumed to be 0.8v at 2 mhz operatio n. free datasheet http:///
BC2004DFNOJH$ - 25 - 13-2.5 initializing soft ware of lcm 13-2.5.1 8-bit interface free datasheet http:///
BC2004DFNOJH$ - 26 - 13-2.5.2 4-bit interface free datasheet http:///

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