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az displays specifications for liquid crystal display tm0350d2 z displays ver2.2
2013-05-02 ver2.2 ver2.1 revision record revision revision date page contents ver1.0 ver2.0 2008-07-10 2011-08-22 e lcd first issue updat 2013-04-12 8 modify optical characteristics 4,5 update viewing angle information
contents 1. lcd module physical data ?????????????...4 2. outline dimensions ??????????????????5 3. block diagram ????????????????????.6 4. absolute maximum ratings ?????????????.6 5. electrical characteristics ????????????..7 6. electro-optical characteristics ?????????.8 7. signal timing diagram????????????????11 8. interface pin connections ?????????????.16 9. initialized code ???????????????????.16 10. specification of quality assurance ???????.. .17 11. reliability ??????????????????????.23 12. using lcd modules ??????????????????24
1 lcd module physical data 1.1 general description display type tft/transmissive connection type cog + fpc operation temperature -20 ~70 storage temperature -30 ~80 driving ic hx8238-d mpu interface rgb interface table 1. 1.2 mechanical description item standard value unit screen size 3.5 inch number of dots 320rgb x 240 dots - lcm dimension 76.90(w ) x 63.90(h) x 3.20(t) mm active area 70.08(w) x 52.56h) mm dot size 0.219(w) x 0.219(h) mm approx. weight tbd g backlight 6 chip white led in series table 2. a tm0350d2(az displays) tft module ver2.2 a z displays 1
2 outline dimensions a tm0350d2(az displays) tft module ver2.2 a z displays 2
3 block diagram figure 2. 4 absolute maximum ratings standard value item symbol condition min typ max unit power supply voltage(1) vdd ta= +25 -0.3 - 4.6 v power supply voltage(2) iovcc ta= +25 -0.3 - 4.6 v power supply voltage(3) vci ta= +25 -0.3 - 4.6 v input voltage vin ta=+25 -0.3 - vcc+0.3 v operating temperature top --- - 20 - +70 storage temperature tst --- - 30 - +80 table 3. note: (1). if the module is used above these absolute maximum ratings. it may become permanently damaged. using the module within the following electrical characteristic conditions are also exceeded, the module will malfunction and cause poor reliability (2). lcm should be grounded during handing lcm. (3). vdd>gnd must be maintained. a tm0350d2(az displays) tft module ver2.2 a z displays 3
5 electrical characteristics 5.1 dc characteristics standard value item symbol condition s min typ max unit power supply voltage for logic vci ta= +25 2.8 3.0 3.3 v power supply voltage for i/o circuit vddio ta= +25 1.8 3.0 3.3 input high voltage for lcd vih 0.8iovcc iovcc v input low voltage for lcd vil vss 0.2 iovcc v output high voltage for lcd voh 0.8iovcc iovcc v output low voltage for lcd vol vss 0.2 iovcc v table 4. 5.2 back-light unit standard value parameter symbol remark min typ max unit forward voltage vf if =20ma 18.0 19.2 20.4 v luminous intensity(include lcd) iv if =20ma 380 400 - cd/m2 luminous tolerance iv-m (min/max)/100 - 80 - % x 0.270 0.310 chromaticity coordinates(include lcd) y if =20ma 0.290 0.330 operating temperature -20 ~ 70 storage temperature -30 ~ 80 table 5. 5.3 ac characteristics refer to hx8238-d data sheet. a tm0350d2(az displays) tft module ver2.2 a z displays 4
60 6 electro-optical characteristics paramete symbol condition min typ max unit remark vsat 2.7 3.3 3.8 v threshold voltage vth 1.2 1.5 1.8 v note 1 left(9) 70 7 5 - deg horizontal right(3) 70 7 5 - deg up(12) 50 5 5 - deg viewing angle range vertical down(6) cr > 10 55 - deg not 2 contrast ratio c/r = 0 - 300 - not 3 transmittance t(%) = 0 - 7.4 - not 4 response time tr+tf = 0 30 msec not 6 table 6. note : 1. the definition of vth & vsat figure 3. the definition of vth & vsat a tm0350d2(az displays) tft module ver2.2 a z displays 5
2.viewing angle is the angle at which the contrast ratio is greater than 10. the viewing are determined for the horizontal or 3, 9 oclock direction and the vertical or 6, 12 oclock direction with respect to the optical axis which is normal to the lcd surface. figure 4.definition of viewing angle 3. contrast measurements shall be made at viewing angle of = 0 and at the center of the lcd surface. luminance shall be measured with all pixels in the view field set first to white, then to the dark (black) state. luminance when displaying a white raster cr luminance when displaying a black raster 4. transmittance is the value with polarizer . 5. the color chromaticity coordinates specified in table 6. shall be calculated from the spectral data measured with all pixels first in red, green, blue and white. measurements shall be made at the center of the c/f. measurement condition is c - light source & halogen lamp. a tm0350d2(az displays) tft module ver2.2 a z displays 6
figure 5 optical test equipment. 6. the electro-optical response time measurements shall be made as figure 3 shown in appendix by switching the data input signal on and off. the times needed for the luminance to change from 10% to 90% is tr, and 90% to 10% is td figure 6.definition of response time: tr+tf a tm0350d2(az displays) tft module ver2.2 a z displays 7
7 signal timing diagram 7.1 dc characteris figure 7. dc characteris a tm0350d2(az displays) tft module ver2.2 a z displays 8
7.2 ac characteris figure 8. pixel timing figure 9. pixel timing a tm0350d2(az displays) tft module ver2.2 a z displays 9
figure 10. data transaction timing in parallel rgb (24 bits) sync mode figure 11. data transaction timing in normal operating mode a tm0350d2(az displays) tft module ver2.2 a z displays 10
7.3 power up sequence figure 12. power up sequence a tm0350d2(az displays) tft module ver2.2 a z displays 11
7.4 power up sequence figure 13. power down sequence a tm0350d2(az displays) tft module ver2.2 a z displays 12
8 interface pin connections table 6. 9 initialized code please contact us for details. pin no. symbol function descriptions 1~2 led- the backlight ground 3~4 led+ power supply for backlight 5~7 nc no connection 8 reset lcd reset signal 9 cs chip select 10 scl clock synchronization signal 11 sdi spi serial signal 12~19 b0~b7 b signal data bus 20~27 g0~g7 g signal data bus 28~35 r0~r7 r signal data bus 36 hsync line synchronization signal 37 vsync frame synchronization signal 38 dotclk dot synchronization signal 39~40 nc no connection 41~42 vdd power supply for logic circuit 43~47 nc no connection 78 xr 49 yd 50 xl 51 yu touch panel select pin( no connection) 52 enb a data enable signal in rgb i/f mod 53~54 gnd ground a tm0350d2(az displays) tft module ver2.2 a z displays 13
10 specification of quality assurance 10.1 summary the customer should check and accept the products of zet within one month after reception. this standard for quality assurance should affirm the quality of lcd products to supply to purchaser by zet company limited. entire process is controlled according to qs9000. 10.2 standard for quality test (1) inspection before delivering, the supplier should take the following tests, and affirm the quality of product. (2) electro-optical char acteristics according to the individual specification to test the product. (3) test of appearance characteristics: according to the individual specification to test the product. (4)test of reliability characteristics according to the definition of reliability on specification for test product. (5) delivery test before delivering, the supplier should take the delivery test (6)sampling method: gb/t2828.1-2003, level ii (7) the defects classify of aql as following major defect: aql=0.65 minor defect: aql=1.5 10.3 nonconforming analysis & deal with manners ? nonconforming analysis (1) purchaser should supply the detail data of nonconforming sample and the non-suitable state. (2) after accepting the detail data from purchaser ,the analysis of nonconforming should be finished in two weeks. (3) if supplier can not finish analysis on time ,must announce purchaser before two weeks. ? disposition of nonconforming (1) if find any supplier defect during assembly line, supplier must change the good product for every defect after recognition. (2) both supplier and customer should analysis the reason and discuss the disposition of nonconforming when the reason of nonconforming is not sure. a tm0350d2(az displays) tft module ver2.2 a z displays 14
10.4 agreement items. both sides should discuss together when the following problems happen: (1) there is any problem of standard of quality assurance ,and both sides think that must be modifier. (2) there is any argument item which does not record in the quality assurance. (3) any other special problem. 10.5 standard of the product appearance test 10.5.1 manner of appearance test (1) the test must be under 20w*2 or 40w fluorescent light ,and the distance of view must be at 305 cm. (2) when test the model of transmissive product must add the reflective plate. (3) the test direction is base on about around 30 degree(within range)of vertical line. vertical line eyes figure 14. a tm0350d2(az displays) tft module ver2.2 a z displays 15
(4) definition of area: a area: active area b area: viewing area c area: out of viewing area d area: seal area c area b area a area d area figure 15. 10.5.2 basic principle: (1) it will accord to the aql when the standard can not be described. (2) the sample of the lowest acceptable quality level must be discussed by both supplier and customer when any dispute happened. (3) must add new item on time when it is necessary. a tm0350d2(az displays) tft module ver2.2 a z displays 16
10.6 inspection specification no item criterion aql 01 electrical testing 1.1 missing vertical, horizontal segment, segment contrast defect. 1.2 missing character, dot or icon. 1.3 display malfunction. 1.4 no function or no display. 1.5 current consumption exceeds product specifications. 1.6 lcd viewing angle defect. 1.7 contrast defect 0.65 02 lcd black spots, white spots, color spots, contamination, scratches (display/non-displa y) 2.1 round type: as following drawing =(x+y)/2 x y 2.2 line type: (as following drawing) w l length width acceptable qty remark a.a v.a --- w 0.03 0 ignore ignore l 2.5 0 0.03< w0.05 0 l 1.5 0 0.05< w0.08 0 2 3 no more than two lines within 5mm --- 0.08< w 0 0 acceptable qty size a.a v.a remark 0.20 0 ignore ignore 0.20< 0 0.25 2 3 0.25 0.3 00 0 1 2 0.30< 0 0 total 3 5 no more than two spots within 5mm 1.5 a tm0350d2(az displays) tft module ver2.2 a z displays 17
03 polarizer bubbles ignore if bubbles are visible, judge using black spot specification, not easy to find, must check in specify direction. size acceptable qty a. a v. a 0.30 0 ignore ignore 0.30< 0.60 0 2 3 0 0 1.5 04 chipped glass symbols: a: chip length b: chip width c: chip thickness t: glass thickness 4.1 ito electrode 4.2 general ,corner portion 1.5 a tm0350d2(az displays) tft module ver2.2 a z displays 18
05 cracked glass the lcd with extensive crack is not acceptable. 0.65 06 backlight elements 6.1 illumination source flickers when lit. 6.2 spots or scratches that appear when lit must be judged using lcd spot, lines and contamination standards. 6.3 backlight doesnt light or color is wrong 0.65 1.5 0.65 07 soldering 7.1 no unmelted solder paste may be present on the pcb. 7.2 no cold solder joints, missing solder connections, oxidation or icicle. 7.3 no residue or solder balls on pcb. 7.4 no short circuits in components on pcb. 1.5 1.5 1.5 0.65 08 general appearance 8.1 no oxidation, contamination, curves or, bends on interface pin (olb) of tcp. 8.2 no cracks on interface pin(olb) of tcp 8.3 no contamination, solder residue or solder balls on product. 8.4 the ic on the tcp may not be damaged, circuits. 8.5 the residual rosin or tin oil of soldering (component or chip component) is not burned into brown or black color. 8.6 sealant on top of the ito circuit has not hardened 8.7 pin type must match type in specification sheet. 8.8 lcd pin loose or missing pins. 8.9 product packaging must the same as specified on packaging specification sheet. 8.10 product dimension and structure must conform to product specification sheet. 1.5 0.65 1.5 0.65 1.5 1.5 0.65 0.65 0.65 0.65 table 7. a tm0350d2(az displays) tft module ver2.2 a z displays 19
11 reliability no.. test item description test condition 1 high temperature storage endurance test applying the high storage temperature for a long time 80 ,240 h 2 low temperature storage endurance test applying the low storage temperature for a long time -30 ,240h 3 high temperature operation endurance test applying the electric stress under high temperature for a long time 60 ,96h 4 low temperature operation endurance test applying the electric stress under low temperature for a long time -10 ,96h 5 high temperature /humidity storage endurance test applying the high temperature and high humidity storage for a long time 50 ,90% r.h 240h 6 high temperature /humidity operation endurance test applying electric stress under high temperature and high humidity for a long time 60 , 90% r.h 96h 7 temperature cycle endurance test applying the low and high temperature cycle -20 25 70 25 30min 5min 30min 5min one cycle -20 /70 10 cycles 8 vibration test endurance test applying the vibration during transportation and using 10hz~50hz swing:0.75mm time:30min 9 fall test endurance test dropping the lcm from a high place 600mm height 10 static electricity test endurance test applying static electric stress to terminal contact discharge: 2kv~4kv air discharge: 2kv~10kv table 8. note: test condition (1) temperature and humidity: if no specification, temp. set at 252c, humidity set at 605%rh. (2) operating state: samples subject to the test shall be in operating condition. a tm0350d2(az displays) tft module ver2.2 a z displays 20
12 using lcd modules 12.1 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 specified range for use and storage. polarization degradation, bubble generation or polarizer peel-off may occur with high temperature and high humidity. (2) do not touch, push or rub the exposed polarizers with anything harder than an hb pencil lead (glass, tweezers, etc.). (3) n-hexane is recommended for cleaning the adhesives used to attach front/rear polarizers and reflectors made of organic substances which will be damaged by chemicals such as acetone, toluene, ethanol and isopropylalcohol. (4) when the display surface becomes dusty, wipe gently with absorbent cotton or other soft material like chamois soaked in petroleum benzin. 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 dirty the 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 the display area to avoid leaving marks on. (9) do not touch the display with bare hands. this will stain the display area and degradate insulation between terminals (some cosmetics are determinated to the polarizers). (10) as glass is fragile. it tends to become or chipped during handling especially on the edges. please avoid dropping or rising. 12.2 precaution for handing lcd modules since lcm has been assembled and adjusted with a high degree of precision, avoid applying excessive shocks to the module or making any alterations or modifications to it. (1) do not alter, modify or change the the shape of the tab on the metal frame. (2) do not make extra holes on the printed circuit board, modify its shape or change the positions of components to be attached. (3) do not damage or modify the pattern writing on the printed circuit board. (4) absolutely do not modify the zebra rubber strip (conductive rubber) or heat seal connector. (5) except for soldering the interface, do not make any alterations or modifications with a soldering a tm0350d2(az displays) tft module ver2.2 a z displays 21
iron. (6) do not drop, bend or twist lcm. (7) in order to avoid the cracking of the fpc,you should to pay attention to the area of fpc(r50mm) where the fpc was bent .the edge of coverlay;the area of surface of ni-au plating,the area of soldering land,the area of through hole. 12.3 electro-static discharge control since this module uses a cmos lsi, the same careful attention should be paid to electrostatic discharge as for an ordinary cmos ic. (1) make certain that you are grounded when handing lcm. (2) before remove 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 screwdriver 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 work bench 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 0%-60% is recommended. 12.4 precautions for operation (1) viewing angle varies with the change of liquid crystal driving voltage (vo). adjust vo to show the best contrast. (2) driving the lcd in the voltage above the limit shortens its life. (3) response time is greatly delayed at temperature 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. (4) if the display area is pushed hard during operation, the display will become abnormal. however, it will return to normal if it is turned off and then back on. (5) condensation on terminals can cause an electrochemical reaction disrupting the terminal circuit. therefore, it must be used under the relative condition of 40c , 50% rh. (6) when turning the power on, input each signal after the positive/negative voltage becomes stable. a tm0350d2(az displays) tft module ver2.2 a z displays 22
figure 16. 12.5 storage when storing lcds as spares for some years, the following precaution are necessary. (1) store them in a sealed polyethylene bag. if properly sealed, there is no need for dessicant. (2) store them in a dark place. do not expose to sunlight or fluorescent light, keep the temperature between 0c and 35c. (3) the polarizer surface should not come in contact 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 160hrs. at 70c. - should not be left for more than 48hrs. at -20c. 12.6 safety (1) it is recommended to crush damaged or unnecessary lcds into pieces and wash them off with solvents such as acetone and ethanol, which should later be burned. (2) if any liquid leakes out of a damaged glass cell and comes in contact with the hands, wash off thoroughly with soap and ater. 12.7 limited warranty unless agreed between azd and customer, azd will replace or repair any of its lcd modules which are found to be functionally defective when inspected in accordance with azd lcd modules acceptance standards (copies available upon request) for a period of one year from date of shipments. cosmetic/visual defects must be returned to azd within 90 days of shipment. confirmation of such date shall be based on freight documents. the warranty liability of azd limited to repair and/or replacement on the terms set forth above. azd will not be responsible for any subsequent or consequential events. a tm0350d2(az displays) tft module ver2.2 a z displays 23
12.8 return lcm under warranty no warranty can be granted if the precautions stated above have been disregarded. the typical examples of violations are : - broken lcd glass. - circuit modified in any way, including addition of components. module repairs will be invoiced to the customer upon mutual agreement. modules must be returned with sufficient description of the failures or defects. any connectors or cable installed by the customer must be removed completely without damaging the pcbs eyelet, conductors and terminals. a tm0350d2(az displays) tft module ver2.2 a z displays 24

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