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china display technology co., ltd. SVM802BSFA-1 - 2 - table of contents section/sub section pages rev. 1 general descri p tion 3 0 2 mechanical dia g ram 4 0 3 i/o terminal 5 0 3.1 pin descri p tion 5 0 3.2 block diagram 6 0 4. timin g characteristics 6 0 5. code description 8 0 6 .electro-o p tical characteristics 9 0 6.1 electro-o p tical characteristics test 9 0 6.2 definition of o p eratin g volta g e, vo p 9 0 6.3 definition of o p tical res p onse time 10 0 6.4 definition of viewin g an g le and 10 0 6.5 definition of contrast ratio, cr 11 0 6.6 reliabilit y test 11 0 7 precautions for usin g lcd module 12 0 7.1 handin g precautions 12 0 7.2 others 13 0 8 usin g lcd modules 13 0 8.1 li q uid cr y stal dis p la y modules 13 0 8.2 installin g lcd module 14 0 8.3 electro-static dischar g e control 14 0 8.4 precaution for soldering to the lcm 14 0 8.5 precaution for o p eration 15 0 8.6 stora g e 15 0 8.7 safet y 15 0 8.8 limited warrant y 15 0 free datasheet http:///
china display technology co., ltd. SVM802BSFA-1 - 3 - 1 general description item standard value unit display format 8*2(character*lines) lcd driving method 1/8duty ,1/5bias viewing direction 6 o?clock power supply voltage 5 v dimensional outline (w*h*d) 40*35.5*12 mm viewing area (w*h) 30*14.1 mm active area (w*h) 9.49*25.88 mm dots size (w*h) 0.5*0.5 mm dots pitch (w*h) 0.57*0.57 mm backlight type&color y/g display mode stn, positive driver ic splc780c operation temperature t opl =0 ,t oph
storage temperature t stl = -20 ,t sth
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china display technology co., ltd. sv m 802bsf a - 1 - 4 - 2 m echanical diagram ? ? h (y p) j (l * h *w ) m m
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china display technology co., ltd. sv m 802bsf a - 1 - 5 - 3 i/o terminal 3.1 pin description /0 4:.#0- *0 '6/$5*0/ 1 g n d i g r o u n d 2 v d d i power i n p u t . 3 vl cd i ne g a tive volta g e f o r l c d dr iving . 4 r s i a sig n al for selecting reg i sters. 1: dat a r e g i st er(for read and wri t e ). 0: i n st ruct i on r e g i st er(for wri t e ). b u sy flag -address counter (for read). 5 r / w i a sig n al for selecting read or write actions. 1:read 0:w r ite 6 e i a sta r t sig n a l f o r r e a d ing or wr iting da ta . 7 14 db0 db 7 i / o data bit 0?data bit 7 1 5 a i l e d + 1 6 k i l e d - free datasheet http:///
china display technology co., ltd. sv m 802bsf a - 1 - 6 - 3.2 block diagram m p u l c d s e g 4 0 co m1 6 c o n t r o l l e r a k l e d 4 timing se que nc e (1) w r ite mode timing diag ram (w r iting data from mpu to spl c780c) free datasheet http:///
china display technology co., ltd. sv m 802bsf a - 1 - 7 - (2) read mode timing diag ram (read data from spl c780c to mpu) free datasheet http:///
china display technology co., ltd. sv m 802bsf a - 1 - 8 - 5 code de s crip t ion free datasheet http:///
china display technology co., ltd. sv m 802bsf a - 1 - 9 - 6 electro-optical characteris tics 6.1 electro-optical characteristics test method photo-detector response time l i g h t s ource for r e fl ect i v e ty pe l i quid cry s tal pa ne l p o l a ri z e r o l i g h t s ource for transmission ty pe 6.2 definition of operating voltage, vop v o p = ( v 10,o n +v 90,o f f )/ 2 bri g ht ness c u rve for s e l ect ed s e g m ent bri g ht ness c u rve for non-sel ect ed s e g m ent 100% bri g ht ness (%) 90% 10% v 10,o n v 90,o f f dr iving volta g e free datasheet http:///
china display technology co., ltd. 6.3 definition of optical response time s e l ect ed w a veform non-selecte d w a veform non-sel ect ed w a veform bri g ht ness (%) time ( ms ) 90% 100 10% decay ti m e , td rise time, tr 6.4 definition of viewing angle and sv m 802bsf a - 1 - 10 - 12 o?clock direction 9 o?clock direction =0 normal : =0 viewing direction 6 o?clock direction =180 =90 =270 3 o?clock direction free datasheet http:///
china display technology co., ltd. sv m 802bsf a - 1 - 11 - 6.5 definition of contrast ratio, cr b r i g h t n e s s o f n o n - s e l e c t e d s e g m e n t ( b 2 ) b r i g h t n e s s o f s e l e c t e d s e g m e n t ( b 1 ) cr = bri g ht ness c u rve for s e l ect ed s e g m ent 6.6 reliability test 6.6.1content of reliability test no. test i t em content of test condition environmental test 1 h i g h tem p erat u r e s t orag e endurance test apply i ng the hig h temperature f o r a long time 60
120h 2 l o w tem p erat u r e s t orag e endurance test apply i ng the low temperature f o r a long time -10
120h 3 h i g h te mpe r a t ur e / humidity s t orag e endurance test apply i ng the hig h temperature a nd hig h humidity f o r a long time
& 90% rh 100h 4 heat shock endurance test apply i ng the l o w and hi g h t e m p erat ure cy cl es -10
< > 60
( 1 h ) ( 1 h ) 1 c y cl e -10 / 60
5 cy cl e v , ma x cr,ma x dr iving volta g e b2 b1 bri g ht ness c u rve for n on-sel ect ed s e g ment 100% 0% bri g ht ness (%) contrast 6.6.2f ailure j udg ement criterion after the above-mentioned test there should not ex ist conspicuous fa ilure of display quality and appearance. no de g r a d a tion of the displa y r e a d a b ility . there should not have any abnormality of function. free datasheet http:///
china display technology co., ltd. SVM802BSFA-1 - 12 - 7 precautions for using lcd module 7.1 handing precautions (1) the display panel is made of glass. do not subject it to a mechanical shock or impact by dropping it. (2) if the display panel is damaged and the liquid cr ystal substance leaks out, be sure not to get any in your mouth. if the substance contacts your skin or clothes, wash it off using soap and water. (3) do not apply excessive force to the display surface or the adjoining areas since this may cause the color tone to vary. (4) the polarizer covering the display surface of the lcd module is soft and easily scratched. handle this polarizer carefully. (5) if the display surface becomes contaminated,br eathe on the surface and gently wipe it with a soft dry cloth. if it is heavily contaminated, mois ten a cloth with one of the following solvents: - isopropyl alcohol - ethyl alcohol (6) solvents other than those above mentioned ma y damage the polarizer. especially, do not use the following: - water - ketone - aromatic solvents (7) extra care to minimize corrosion of the electrode . water droplets, moistu re condensation or a current flow in a high-humidity environment accelerates corrosion of the electrode. (8) install the lcd module by using the mounting holes. when mounting the lcd module, make sure it is free of twisting, warp ing and distortion. in particular, do not forcibly pull or bend the i/o cable or the backlight cable. (9) do not attempt to disassemb le or process the lcd module. (10) nc terminal should be open. do not connect anything. (11) if the logic circuit power is off, do not apply the input signals. (12) to prevent destruction of the elements by static electricity, be careful to maintain an optimum work environment. - be sure to ground the body when handling he lcd module. - tools required for assembling, such as soldering irons, mu st be properly grounded. -to reduce the amount of static electricity generated, do not conduct assembling and other work under dry conditions. -the lcd module is coated with a film to prot ect the display surface. exercise care when peeling off this protective film since static electricity may be generated. free datasheet http:///
china display technology co., ltd. SVM802BSFA-1 - 13 - 7.2 others (1) liquid crystals solidify under low temperature (b elow the storage temperat ure range) leading to defective orientation or the generation of air bubbles (black or white). air bubbles may also be generated if the module is s ubject to a low temperature. (2) if the lcd module have been operating for a long time showing the sa me display patterns the display patterns may remain on the screen as ghost images and a slight contrast irregularity may also appear. a normal operating status can be recovered by suspending use for some time. it should be noted that this phenomenon does not adversely affect performance reliability. (3) to minimize the performance degradation of the lcd module resulting from destruction caused by static electricity etc. exercise care to avoid holding the following sections when handling the modules. - exposed area of the printed circuit board. - terminal electrode sections. - 8 using lcd modules 8.1 liquid crystal display modules lcd is composed of glass and polarizer. pay attention to the following items when handling. (1) please keep the temperature within specifi ed range for use and storage. polarization degradation, bubble generation or polarizer peel-o ff may occur with high temperature and high humidity. (2) do not touch, push or rub the exposed polarizer s with anything harder than a hb pencil lead (glass, tweezers, etc). (3) n-hexane is recommended for cleaning the adhe sives used to attach front/rear polarizers and reflectors made of organic substances, which will be damaged by che micals such as acetone, toluene, toluene, ethanol and isopropyl alcohol. (4) when the display surface becomes dusty, wipe gently with absorbent cotton or other soft material like chamois soaked in petroleum ethe r. do not scrub hard to avoid damaging the display surface. (5) wipe off saliva or water drops immediately, contact with water over a long period of time may cause deformation or color fading. (6) avoid contacting oil and fats. (7) condensation on the surface and contact with terminals due to cold will damage, stain or polarizers. after products are tested at low temperature they must be warmed up in a container before coming is contacting with room temperature air. (8) do not put or attach anything on th e display area to avoid leaving marks on. (9) do not touch the display with bare hands. this will stain the display area and degrade insulation between terminals (some cosmetics are determinate to the polarizers). (10)as glass is fragile, it tends to become or chipped during handling especially on the edges. free datasheet http:///
china display technology co., ltd. SVM802BSFA-1 - 14 - please avoid dropping or jarring. 8.2 installinglcd module attend to the following items when installing the lcm. (1) cover the surface with a transparent protective plate to protect the polarizer and lc cell. (2) when assembling the lcm into other equipment, the spacer to the bit between the lcm and the fitting plate should have enough height to a void causing stress to th e module surface, refer to the individual specifications for measurements. the meas urement tolerance should be 0.1mm. 8.3 electro-static discharge control since this module uses a cmos ls i, the same careful attention s hould be paid for electrostatic discharge as for an ordinary cmos ic. (1) make certain that you are grounded when handing lcm. (2) before removing lcm from its packing case or incorporating it into a set, be sure the module and your body have the same electric potential. (3) when soldering the terminal of lcm, make certain the ac power source for the soldering iron does not leak. (4) when using an electric scre wdriver to attach lcm, the screwdriver should be of ground potentiality to minimize as much as possible any transmission of electromagnetic waves produced sparks coming from the commutator of the motor. (5) as far as possible, make the electric potential of your work clothes and that of the workbenches to the ground potential. (6) to reduce the generation of static electricity , be careful that the air in the work is not too dried. a relative humidity of 50%-60% is recommended. 8.4 precaution for soldering to the lcm (1) observe the following when soldering lead wire, connector cable and etc. to the lcm. -soldering iron temperature: 280 10c. -soldering time: 3-4 sec. -solder: eutectic solder. if soldering flux is used, be sure to remove any remaining flux after finishing to soldering operation. (this does not apply in the case of a non-ha logen type of flux.) it is recommended that you protect the lcd surface with a cover during soldering the prevent any damage due to flux spatters. (2) when soldering the electroluminescent panel a nd pc board, the panel a nd board should not be detached more than three times. this maximum number is determined by the temperature and free datasheet http:///
china display technology co., ltd. SVM802BSFA-1 - 15 - time conditions mentioned above , though there may be some variance depending on the temperature of the soldering iron. (3) when removing the electroluminescent panel from the pc board, be sure the solder has completely melted, otherwise the soldered pad on the pc board could be damaged. 8.5 precaution for operation viewing angle varies with the change of liquid cr ystal driving voltage (vo). adjust vo to show the best contrast. (1) driving the lcd in the voltage above the limit will s horten its lifetime. (2) response time is greatly delayed at temper ature below the operating temperature range. however, this does not mean the lcd will be out of the order. it will recover when it returns to the specified temperature range. (3) if the display area is pushed hard during opera tion, the display will beco me abnormal. however, it will return to normal if it is turned off and then on. (5) condensation on terminals can cau se an electrochemical reaction disrupting the terminal circuit. therefore, it must be used under th e relative condition of 40c, 50% rh. (6) when turning the power on, input each sign al after the positive/negative voltage becomes stable. 8.6 storage when storing lcds as spares for some years, the following precaution are necessary. (1) store them in a sealed polyethylene bag. if properly scaled, there is no need for desiccant. (2) store them in a dark place. do not expos e to sunlight or fluorescent light, keep the temperature between 0c and 35c. (3) the polarizer surface should not come in cont act with any other objects. (we advise you to store them in the container in which they were shipped.) (4) environmental conditions: -do not leave them for more than 168hrs. at 60 c. -should not be left for more than 48hrs. at ?20 c. 8.7 safety (1) it is recommended to crush damaged or unn ecessary lcds into pieces and wash them off with solvents such as acetone and ethanol, which should later be burned. (2) if any liquid leaks out of a damaged glass ce ll and comes in contact with the hands, wash off thoroughly with soap and water. 8.8 limited warranty free datasheet http:///
china display technology co., ltd. SVM802BSFA-1 - 16 - unless agreed between giantplus and customer, giantplus will replace or repair any of its lcd and modules which are found to be functi onally defective when inspected in accordance with giantplus lcd acceptance standards (copies available upon request) for a period of one year from date of shipments. cosmetic/visual defects must be returned to giantplus within 90 days of shipment. conf irmation of such date shall be ba sed on freight documents. the warranty liability of giantplus is limited to repair and/or replacement on the terms set forth above. giantplus will not be responsible for an y subsequent or c onsequential events. free datasheet http:///

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