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az displays specifications for liquid crystal display customer approval part no. : ATM0350D18 ( az displays ver1.1 approval company chop customer comments az displ a y s engineering approval designby checkedby approvedby ygb
ATM0350D18(az displays) tft module v1.1 a z displays 1 revision record revision revision date page contents ver1.0 ver1.1 2013-03-19 2013-08-27 all first issue change spec format
a z displays 2 ATM0350D18(az displays) tft module v1.1 contents 1. general specifications 2. pin assignment 3. operating specifications 4. optical specifications 5. reliability test 6. precaution for using lcm 7. mechanical drawing 8. package drawing 9. inspection specification
ATM0350D18(az displays) tft module v1.1 a z displays 3 1. general specifications item specification remark 1. lcd size 3.5 inch(diagonal) 2. driver element a-si tft active matrix 3. resolution 320x(rgb)x240 4. display mode normally white , transmissive 5. dot pitch (w*h) 0.073mm(w) x 0.219mm(h) 6. pixel pitch(w*h) 0.219mm(w) x 0.219mm(h) 7. active area(w*h) 70.08mm(w) x 52.56mm(h) 8. module size (w*h) 76.9mm(w) x 63.9mm(h) x 3.3mm(d) note 1 9. surface treatment clear 10. bezel material stainless steel 11. color arrangement rgb-stripe 12. color 16.7m 13. interface / driver ic 24bit rgb interface / hx8238-d 14. weight 30g(typ.) 15. rohs rohs compliant note 1: please refer to mechanical drawing.
ATM0350D18(az displays) tft module v1.1 a z displays 4 2. pin assignment tft lcd panel driving section fpc connector is used for the module electronics interface. the recommended model is 6420 series manufactured by kyocera. pin no. symbol function level note 1-2 vbl- power for led backlight(cathode) p 3-4 vbl+ power for led backlight(anode) p 5 nc not use -- 6 /reset hardware reset i 7 csb spi interface chip select bar i 8 sck spi interface data clock i 9 sdi spi interface data input i 10 sdo spi interface data output o 11~18 b7~b0 blue data i 19~26 g7~g0 green data i 27~34 r7-r0 red data i 35 dclk dot data clock i 36 hsync horizontal sync input i 37 vsync vertical sync input i 38 enb data enable input i 39-40 vdd analog power p 41-42 vcc digital power p 43-46 nc not use -- 47 shut display shut donw pin i 48 nc not use -- 49-50 vss ground p i: input, o: output, p: power
ATM0350D18(az displays) tft module v1.1 a z displays 5 3. operating specification 3.1.1 absolute maximum ratings item symbol values unit remark min. max. power voltage v dd -0.3 5.0 v operation temperature t op -20 70 oc storage temperature t st -30 80 oc led reverse voltage v r -1.2v each led note 2 led forward current i f 25 ma each led note 1 : the absolute maximum rating values of this product are not allowed to be exceeded at any times. should a module be used with any of the absolute maximum ratings exceeded, the characteristics of the module may not be recovered, or in an extreme case, the module may be permanently destroyed. note 2 : v r conditions: zener diode 20ma 3.1.2 typical operation conditions item symbol values unit remark min. typ. max. power voltage v dd 2.5 3.3 3.6 v note 1 input logic high voltage v ih 0.8vcc -- vcc v note 2 input logic low voltage v il 0 -- 0.2vcc v note 2 note 1 : v dd setting should match the signals output voltage of customer?s system board. note 2 : dclk,hs,vs,reset,de,r0~r7,g0~g7,b0~b7. 3.1.3 backlight driving conditions item symbol values unit remark min. typ. max. voltage for led backlight v l 18 19.8 21.6 v note 1 current for led backlight i l 18 20 22 ma led life time -- 30000 -- -- hr note 2 note 1 : the led supply voltage is defined by the number of led at ta=25 and i l =20ma. note 2 : the ?led life time? is defined as the module brightness decrease to 50% original brightness at ta=25 and i l =20ma.
a z displays 6 ATM0350D18(az displays) tft module v1.1 3.2 timing characteristics 3.2.1 ac electrical characteristics
ATM0350D18(az displays) tft module v1.1 a z displays 7
ATM0350D18(az displays) tft module v1.1 a z displays 8 for more detailed information, please refer to ic specification.
a z displays 9 ATM0350D18(az displays) tft module v1.1 4.0 optical specifications item symbol condition values unit remark min. typ. max. viewing angle (cr 10) l =180 o (9 o'clock) 70 75 -- degree note 1 r =0 o (3 o'clock) 70 75 -- t =90 o (12 o'clock) 50 55 -- b =270 o (6 o'clock) 55 60 -- response time t on + t off normal = =0 o -- 50 70 msec note 3 contrast ratio cr 350 450 -- -- note 4 color chromaticity w x 0.26 0.31 0.36 -- note 2 note 5 note 6 w y 0.26 0.31 0.36 -- luminance l 350 400 -- cd/m 2 note 6 luminance uniformity yu 70 80 -- % note 7 test conditions: 1. il=20ma (backlight current), the ambient temperature is 25 . 2. the test systems refer to note 2. note 1 : definition of viewing angle range figure 4.1 definition of viewing angle.
ATM0350D18(az displays) tft module v1.1 a z displays 10 note 2 : definition of optical measurement system. the optical characteristics should be measured in dark room . after 30 minutes operation, the optical properties are measured at the center point of the lcd screen. (response time is measured by photo detector topcon figure 4.2 optical measurement system setup note 3 : definition of response time the response time is defined as the lcd optical switching time interval between ?white? state and ?black? state. rise time (ton) is the time between photo detector output intensity changed from 90% to 10%. and fall time (toff) is the time between photo detector output intensity changed from 10% to 90%. figure 4.3 definition of response.
a z displays 11 ATM0350D18(az displays) tft module v1.1 note 4: definition of contrast ratio note 5 : definition of color chromaticity (cie1931) color coordinates measured at center point of lcd. note 6 : all input terminals lcd panel must be ground while measuring the center area of the panel. note 7 : definition of luminance uniformity active area is divided into 9 measuring areas (refer to fig. 4-4 ).every measuring point is placed at the center of each measuring area. figure 4.3 definition of measuring points. bmax: the measured maximum luminance of all measurement position. bmin: the measured minimum luminance of all measurement position.
ATM0350D18(az displays) tft module v1.1 a z displays 12 5. reliability test item t est condition item r emark high temperature storage ta= 80 o c 240hrs note 1 note 4 low temperature storage ta=-30 o c 240hrs note 1 note 4 high temperature operation ts= 70 o c 240hrs note 2 note 4 low temperature operation ts=-20 o c 240hrs note 1 note 4 high temperature/high humidity operation 90% rh 60 o c 240hrs note 4 thermal shock -30 /30 min ~ +80 /30 min for a total 100 cycles, start with cold temperature and end with high temperature. note 4 vibration test freq:10~55~10hz amplitude:1.5mm 2 hours for each direction of x,y,z (6 hours for total) mechanical shock 100g 6ms,x, y, z 3 times for each direction package vibration test random vibration : 0.015g*g/hz from 5-200hz, -6db/octave from 200-500hz 2 hours for each direction of x. y. z. (6 hours for total) package drop test height:60 cm 1 corner, 3 edges, 6 surfaces electro static discharge 2kv, human body mode, 100pf/1500 ? note 1 : ta is the ambient temperature of samples. note 2 : ts is the temperature of panel?s surface. note 3 : in the standard condition, there shall be no practical problem that may affect the display function. after the reliability test, the product only guarantees operation, but don?t guarantee all of the cosmetic specification. note 4 : before cosmetic and function test, the product must have enough recovery time, at least 2 hours at room temperature.
ATM0350D18(az displays) tft module v1.1 a z displays 13 6. precaution for using lcm 1. when desi g n the product with this lcd module, make sure the viewin g an g le matches to its purpose of usa g e. 2. a s lcd panel is made of glass substrate, dropping the lcd module or banging it against hard objects may cause cracking or fragmentation. especially at corners and edges. 3. a lthou g h the polarizer of this lcd module has the anti- g lare coatin g ,alwa y s be careful not to scratch its surface. use of a plastic cover is recommended to protect the surface of polarizer. 4. if the lcd module is stored at below specified temperature, the lc material may freeze and be deteriorated. if it is stored at above specified temperature, the molecular orientation of the lc material may change to liquid state and it may not revert to its original state. excessive temperature and humidity could cause polarizer peel off or bubble. therefore, the lcd module should always be stored within specified temperature range. 5. saliva or water droplets must be wiped off immediatel y as those ma y leave stains or cause color chan g es if remained for a long time. water vapor will cause corrosion of ito electrodes. 6. if the surface of lcd panel needs to be cleaned, wipe it swif tly with cotton or other soft cloth. if it is not still clean enough, blow a breath on the surface and wipe again. 7. the module should be driven according to the specified ratings to avoid malfunction and permanent damage. applying dc voltage cause a rapid deterioration of lc material. make sure to apply alternating waveform by continuous application of the m signal. especially the power on/off sequence should be kept to avoid latch-up of driver lsis and dc charge up to lcd panel. 8. mechanical considerations a ) lcm are assembled and ad j usted with a hi g hde g ree of precision. a void excessive shocks and do not make any alterations or modifications. the following should be noted. b) do not tamper in any way with the tabs on the metal frame. c ) do not modif y the pcb b y drillin g extra holes, chan g in g its outline, movin g its components or modif y in g its pattern. d) do not touch the elastomer connector; especially insert a backlight panel (for example, el). e ) when mountin g a lcm makes sure that the pcb is not under an y stress such as bendin g or twistin g . elastomer contacts are very delicate and missing pixels could result from slight dislocation of any of the elements. f ) a void pressin g on the metal bezel, otherwise the elastomer connector could be deformed and lose contact, resulting in missing pixels. 9. static electricity a ) operator wear the electrostatics shielded clothes because human bo dy may be statically charged if not ware shielded clothes. never touch any of the conductive parts such as the lsi pads; the copper leads on the pcb and the interface terminals with any parts of the human body. b) equipment there is a possibility that the static electricity is charged to the equipment, which has a function of peeling or friction action (ex: conveyer, soldering iron, working table). earth th e equipment through proper resistance (electrostatic earth: 1x10 8 ohm). only properly grounded soldering irons should be used. if an electric screwdriver is used, it should be well grounded and shielded from commutator sparks. the normal static prevention measures should be observed for work clothes and working benches; for the latter conductive (rubber) mat is recommended. c ) floor floor is the important part to drain static electricity, which is generated by operators or equipment. there is a possibility that charged static electricity is not properly drained in case of insulating floor. set the electrostatic earth (electrostatic earth: 1x10 8 ohm). d) humidity proper humidity helps in reducing the chance of generating electrostatic charges. humidity should be kept over 50%rh. e ) transportation/stora g e the storage materials also need to be anti-static treated because there is a possibility that the human body or storage materials such as containers may be statically charged by friction or peeling. the modules should be kept in antistatic bags or other containers resistant to static for storage. f ) solderin g solder only to the i/o terminals. use only soldering irons with proper grounding and no leakage. soldering temperature : 280 c 10 c soldering time: 3 to 4 sec. use eutectic solder with resin flux fill. if flux is used, the lcd surface should be covered to avoid flux spatters. flux residue should be removed afterwards. g) others
ATM0350D18(az displays) tft module v1.1 a z displays 14 the laminator (protective film) is attached on the surface of lcd panel to prevent it from scratches or stains. it should be peeled off slowly using static eliminator. static eliminator should also be installed to the workbench to prevent lcd module from static charge. 10. operation a) driving voltage should be kept within specified range; excess voltage shortens display life. b ) response time increases with decrease in temperature. c) display may turn black or dark blue at temperatures above its operational range; this is (however not pressing on the viewing area) may cause the segments to appear ?fractured?. d ) mechanical disturbance durin g operation ( such as pressin g on the viewin g area ) ma y cause the se g ments to appear ?fractured?. 11. if any fluid leaks out of a damaged glass cell, wash off any human part that comes into contact with soap and water. the toxicity is extremely low but caution should be exercised at all the time. 12. disassembling the lcd module can cause permanent damage and it should be strictly avoided. 13. lcd retains the display pattern when it is applied for long time (image retention). to prevent image retention, do not apply the fixed pattern for a long time. image retention is not a deterioration of lcd. it will be removed after display pattern is changed. 14. do not use any materials, which emit gas from epoxy resin (hardener for amine) and silicone adhesive agent (dealcohol or deoxym) to prevent discoloration of polarizer due to gas. 15. a void the exposure of the module to the direct sunlight or strong ultraviolet light for a long time. the brightness of lcd module may be affected by the routing of ccfl cables due to leakage to the chassis through coupling effect. the inverter circuit needs to be designed taking the level of leakage current into consideration. thorough evaluation is needed for lcd module and inverter built into its host equipment to ensure specified brig htness.
ATM0350D18(az displays) tft module v1.1 a z displays 15 7. mechanical drawing
ATM0350D18(az displays) tft module v1.1 a z displays 16 8. package drawing t.b.d.
ATM0350D18(az displays) tft module v1.1 a z displays 17 9. inspection specification 1. scope specifications contain 1.1 display quality evaluation 1.2 mechanics specification 2. sampling plan unless there is other agreement, the samplin g plan for incoming inspection shall follow mil-std-105e. 2.1 lot size: quantity per shipment as one lot (different model as different lot ). 2.2 sampling type: normal inspection, single sampling. 2.3 sampling level: level ii. 2.4 aql: acceptable quality level major defect: aql=0.65 minor defect: aql=1.0 3. panel inspection condition 3.1 environment: room temperature: 255c. humidity: 655% rh. illumination: 300 ~ 700 lux. 3.2 inspection distance: 355 cm 3.3 inspection angle: the vision of inspector should be perpen dicular to the surface of the module. 3.4 inspection time perceptibility test time: 20 seconds max. 4. display quality 4.1 function related: the function defects of line defect, abnormal display, and no display are considered major defects. 4.2 bright/dark dots: note: 1: the definition of dot: the size of a defective dot over 1/2 of whole dot is regarded as one defective dot. bright dot: dots appear bright and unchanged in size in which lcd panel is displaying under black pattern. the bright dot defect must be visible through 2% nd filter dark dot: dots appear dark and unchanged in size in which lcd panel is displaying under pure red, green, blue pattern. 4.3 pixel definition: note 1: if pixel or partial sub-pixel defects exceed 50% of the affected pixel or sub-pixel area, it shall be considered as1 defect. note 2: there should be no distinct non-uniformity visible through 2% nd filter within 2 sec inspection times.
a z displays 18 ATM0350D18(az displays) tft module v1.1 4.4visual inspection specifications:
ATM0350D18(az displays) tft module v1.1 a z displays 19 note: extraneous substance and scratch not affecting the display of image, for instance, extraneous substance under polarizer film but outside the display area, or scratch on metal bezel and backlight module or polarizer film outside the display area, shall not be considered as defective or non-conforming.

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