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7寸tft彩屏

2011-10-17 25页 pdf 1MB 31阅读

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7寸tft彩屏 Specification TFT-LCD module Approved by(批准): Qualified(合格): Unqualified(不合格): PREPARED CHECKED APPROVED AIQING Module(型号)...
7寸tft彩屏
Specification TFT-LCD module Approved by(批准): Qualified(合格): Unqualified(不合格): PREPARED CHECKED APPROVED AIQING Module(型号): TTFG700B5001A Customer(客户): Customer P/N(客户型号): REVISION RECORD REV NO REV DATE CONTENTS REMARKS 1.0 2011-01-11 First Release -1- - 2 - TABLE OF CONTENT „ GENERAL SPECIFICATIONS „ ABSOLUTE MAXIMUM RATINGS „ ELECTRICAL CHARACTERISTICS  、 „ BACKLIGHT CHARACTERISTICS „ DIMENSIONAL DRAWING   „ INTERFACE PIN CONNECTIONS  „ ELECTRO-OPTICAL CHARACTERISTICS   „ INSPECTION CRITERIA „ RELIABILITY   „ PRECAUTIONS FOR USING LCD MODULE „ USING LCD MODULES - 3 - 1.0 General Specifications TTFG700B5001A is a color active matrix LCD module incorporating amorphous silicon TFT (Thin Film Transistor). It is composed of a color TFT-LCD panel, driver IC, FPC and a back light unit. The module display area contains 800x 480pixels. This product accords with RoHS environmental criterion. Item Contents Unit LCD Type TFT TRANSMISSIVE / Viewing direction 6:00 O' Clock Module outline (W x HxD) 164.9x100x3.4 mm Active area (WxH) 154.08x85.92 mm Number of Dots 800(RGB) x480 / Driver IC ILI6122+ILI5960 / Backlight Type 7*3chips white LED / Interface Type Parallel RGB 24-bit / Input voltage -- V 2.0 ABSOLUTE MAXIMUM RATINGS Note1:If users use the product out off the environmemtal operation range(temperature and humidity), it will have visual quality concerns. 3.0 ELECTRICAL CHARACTERISTICS Note1:Please adjust VCOM to make the flicker level be minimum. 4.0 BACKLIGHT CHARACTERISTICS Item Symbol Min Typ Max Unit Condition Forward voltage Vf - 9.7 - V If=140mA Luminance Lv 4000 4600 - cd/m2 If=140mA Number of LED -- 21 Piece -- Connection mode P 3chips serial *7 -- -- -4- - 5 - 5.0 DIMENSIONAL DRAWING LED CIRCUIT DIAGRAM: D w g.N o D ate C hecked D raw n A pprove Tolerance ± 0.2 m m U nm arked U nit A pproved Page 2011/01/07 4/91.0 V ersion A .0 A iQ ing 单 层 区 域 单 层 区 域 补 强 板 800*(RGB)*480 DOTS TFT 7.0" Viewing Direction 高 温 胶 纸 (7.5*6.5mm) 盖 住 背 光 焊 盘 易 撕 贴 - 6 - 6.0 INTERFACE PIN CONNECTIONS Pin.No Symbol Function 1,2 VLED+ Power for LED backlight (Anode) 3,4 VLED- Power for LED backlight (Cathode) 5 GND Power ground 6 VCOM Common Voltage 7 DVDD Digital Power 8 MODE DE/SYNC mode select. Normally pull high H: DE mode. L: HSD/VSD mode 9: DE Data Enable signal. 10 VSD Vertical sync input. Negative polarity 11 HSD Horizontal sync input. Negative polarity 12-19 B7-R0 Blue Data 20-27 G7-G0 Green Data 28-35 R7-R0 Red Data 36 GND Ground 37 DCLK Colock signal 38 GND Display on/off 39 SHLR Left or Right Display Control 40 UPDN Up / Down Display Control 41 VDDG Positive Power for TFT 42 VEEG Negative Power for TFT 43 AVDD Analog Power 44 RSTB Global reset pin. Active low to enter reset state. Suggest to connecting with an RC reset circuit for stability. Normally pull high. (R=10KΩ,C=1μF) 45 NC Not connect 46 VCOM Common Voltage 47 DITH Dithering setting DITH=”H” 6bit resolution(last 2 bit of input data truncated) DITH=”L” 8bit resolution(default setting) 48 GND Power ground 49 NC Not connect 50 NC Not connect - 7 - - 8 - 6.1 Timing characteristics 6.1.1 Prallel RGB input timing table - 9 - - 10 - - 11 - - 12 - 6.1.2 Power、Signal sequence - 13 - 7. ELECTRO-OPTICAL CHARACTERISTICS Item Symbol Condition Temp Min Typ Max Units Note Transmittance T -- 4.8 5.1 ---- % -- Response Time Rise Time (Tr) θ=ψ= 0 -10℃ ---- ---- ---- msec 7.3 Decay Time (Td) ---- ---- ---- (Tr+Td) 25℃ ---- 25 40 Rise Time (Tr) 60℃ ---- ---- ---- Decay Time (Td) ---- ---- ---- Viewing Angle Range θ ψ=0° 25℃ 100 120 ---- Deg 7.4 ψ=90° 120 140 ---- ψ=180° 100 120 ---- ψ=270° 120 140 ---- Contrast Ratio Cr θ=ψ= 0 25℃ 320 400 ---- --- 7.5 - 14 - 7.1 ELECTRO-OPTICAL CHARACTERISTICS TEST METHOD Polarizer Liquid Crystal Panel Light Source for Transmission Type Light Source for Reflective Type Response Time Photo-detector θθo - 15 - 7.2 DEFINITION OF OPERATING VOLTAGE, VOP Vop = (V10,ON +V90,OFF)/2 7.3 DEFINITION OF OPTICAL RESPONSE TIME V10,ON V90,OFF 10% 90% Brightness Curve for Selected Segment Brightness Curve for Non-selected Segment Br ig ht ne ss (% ) Driving Voltage 100% Selected Waveform Non-selected Waveform Non-selected Waveform Br ig ht ne ss (% ) Time (ms) 90% 100% 10% Rise Time, Tr Decay Time, Td - 16 - 7.4 DEFINITION OF VIEWING ANGLE Θ AND 7.5 DEFINITION OF CONTRAST RATIO, CR Brightness of Non-selected Segment (B2) Brightness of Selected Segment (B1) 12 O’clock Direction 9 O’clock Direction 3 O’clock Direction φ=90° φ=270° φ=180° φ=0° Viewing Direction 6 O’clock Direction φ θ Normal : θ=0° CR = V,max CR,max Contrast Driving Voltage Br ig ht ne ss (% ) B2 B1 Brightness Curve for Selected Segment Brightness Curve for Non-selected Segment 100% 0% - 17 - 8.INSPECTION CRITERIA 8.1Inspection Conditions 8.1.1Environmental conditions The environmental conditions for inspection shall be as follows Room temperature: 20±3°C Humidity: 65±20%RH 8.1.2 The external visual inspection With a single 20-watt fluorescent lamp as the light source, the inspection was in the distance of 30cm or more from the LCD to the inspector's eyes . 8.2 LIGHT METHOD Fluorescent lamp perpendicular to the display surface. - 18 - Inspection distance and angle Inspection should be performed within angleφ(φis usually 30°) from Z axis to each X and Y. Inspection distance in any direction within φmust be kept 30±5cm from the display surface. . 8.3 Classification of defects 8.3.1Major defect A major defect refers to a defect that may substantially degrade usability for product applications. 8.3.2 Minor defect A minor defect refers to a defect which is not considered to be able substantially degrade the product application or a defect that deviates from existing standards almost unrelated to the effective use of the product or its operation. - 19 - 9.RELIABILITY 9.1 MTBF The LCD module shall be designed to meet a minimum MTBF value of 50000 hours with normal. (25°C in the room without sunlight) 9.2 TESTS NO. Test Item Test condition Criterion 1 High Temperature Storage 80℃±2℃ 96H Restore 2H at 25℃ Power off 2 Low Temperature Storage -30℃±2℃ 96H Restore 2H at 25℃ Power off 3 High Temperature Operation 70℃±2℃ 96H Restore 2H at 25℃ Power on 4 Low Temperature Operation -20℃±2℃ 96H Restore 2H at 25℃ Power on 5 High Temperature & Humidity Operation 60℃±2℃ 90%RH 96H Power on 6 Temperature Cycle --30℃←→25℃←→80℃ 30min 5min 30min after 10cycle, Restore 2H at 25℃ Power off Aftertesting,cosmetic and electrical defects should not happen. 7 Vibration Test 10Hz~150Hz, 100m/s2, 120min 8 Shock Test Half-sinewave,300m/s2,11ms 9 Drop Test(package state) 800mm, concrete floor,1corner, 3edges, 6 sides each time 1.After testing, cosmetic and electrical defects should not happen. 2.the product should remain at initial place 3.Product uncovered or package broken is not permitted. - 20 - 10. PRECAUTIONS FOR USING LCD MODULE 10.1 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 crystal 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,breathe on the surface and gently wipe it with a soft dry cloth. If it is heavily contaminated, moisten a cloth with one of the following solvents: - Isopropyl alcohol - Ethyl alcohol (6) Solvents other than those above mentioned may damage the polarizer. Especially, do not use the following: - Water - Ketone - Aromatic solvents (7) Extra care to minimize corrosion of the electrode. Water droplets, moisture 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, warping and distortion. In particular, do not forcibly pull or bend the I/O cable or the backlight cable. (9) Do not attempt to disassemble 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, must 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 protect the display surface. Exercise care when peeling off this protective film since static electricity may be generated. - 21 - 10.2 STORAGE PRECAUTIONS When storing The LCD Module, avoid exposure to direct sunlight of fluorescent lamps. Keep the modules in bags (avoid high temperature/ high humidity and low temperatures below 0℃). Whenever possible, the LCD Module should be stored in the same conditions in which they were shipped from our company. 10.3 OTHERS Liquid crystals solidify under low temperature (below the storage temperature range) leading to defective orientation or the generation of air bubbles (black or white). Air bubbles may also be generated if the module is subject to a low temperature. If the LCD Module have been operating for a long time showing the same 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. 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. 11. USING LCD MODULES 11.1 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 a 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, 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 ether. 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. - 22 - (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 the 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. Please avoid dropping or jarring. 11.2 INSTALLING LCD 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 avoid causing stress to the module surface, refer to the individual specifications for measurements. The measurement tolerance should be ±0.1mm. 11.3 ELECTRO-STATIC DISCHARGE CONTROL Since this module uses a CMOS LSI, the same careful attention should 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 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 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. - 23 - 11.4 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 ±10°C. -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-halogen 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 and PC board, the panel and board should not be detached more than three times. This maximum number is determined by the temperature and 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. 11.5 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 will shorten its lifetime. (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 on. (5) Condensation on terminals can cause an electrochemical reaction disrupting the terminal circuit. Therefore, it must be used under the relative condition of 40°C, 50% RH. (6) When turning the power on, input each signal after the positive/negative voltage becomes stable. 11.6 STORAGE When storing LCDS as spares for some years, the following precaution are necessary. (1) Store them in a sealed polyethylene bag. If properly sca
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