LMT070DDCFWD-6 TOPWAY | Alldatasheet
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Technical content
URL: www.topwaydisplay.com www.topwaysz.com Document Name: LMT070DDCFWD-6-Manual-Rev0.1 Page: 1 of 11 LMT070DDCFWD-6 LCD Module User Manual Prepared by: Lin Li Checked by: Approved by: Date: 2018-10-12 Date: Date: Rev. Descriptions Release Date
0.1 Preliminary release 2018-10-12
TOPWAY LCD Module User Manual LMT070DDCFWD-6 URL: www.topwaydisplay.com www.topwaysz.com Document Name: LMT070DDCFWD-6-Manual-Rev0.1 Page: 2 of 11 Table of Content
TOPWAY LCD Module User Manual LMT070DDCFWD-6 URL: www.topwaydisplay.com www.topwaysz.com Document Name: LMT070DDCFWD-6-Manual-Rev0.1 Page: 3 of 11 1. Applications This Module is designed for portable DVD, GPS car TV & PMP(portable multimedia player) application which require high quality flat panel displays. It is also a good substitute for many outmoded CSTN module in the industrial application. This product is composed of a TFT-LCD panel, driver ICs, FPC ,LED backlight unit . 2. General Specification Note: *1. For saturated color display content (eg. pure-red, pure-green, pure-blue or pure-colors-combinations). *2. For “color scales” display content. *3. Color tone may slightly change by temperature and driving condition. 3. Block Diagram Signal Interface : Digital 24-bits RGB Display Technology : a-Si TFT active matrix Display Mode : TN Type Full Color / Transmissive / Normal White Screen Size(Diagonal) : 7.0” Outline Dimension : 164.9 x 100.0 x 5.7 (mm) (see attached drawing for details) Active Area : 154.08 x 85.92 (mm) Number of dots : 800 x 3 (RGB) x 480 Pixel Pitch : 0.1926 x 0.179 (mm) Pixel Configuration : RGB Stripe Backlight : LED Viewing Direction : 6 o’clock(Gray scale Inversion) (*1) 12 o’clock (*2) Operating Temperature : -20 ~ +70°C Storage Temperature : -30 ~ +80°C Surface Treatment : Anti-Glare Treatment DVDD, GND, AVDD 7’’ TFT Panel DE, HS, V S DCLK VGH, VGL Timing Circuit Source Driver R0~R7, G0~G7, B0~B7 MODE Backlight Circuit VLED+,VLED- Gate Driver Power Circuit VCOM DITHB
TOPWAY LCD Module User Manual LMT070DDCFWD-6 URL: www.topwaydisplay.com www.topwaysz.com Document Name: LMT070DDCFWD-6-Manual-Rev0.1 Page: 4 of 11 4. Terminal Function
4.1 K1 TFT Input Terminal
Pin No. Pin Name I/O Descriptions
1 VLED+ Power Positive Backlight Power Supply 2 VLED+
3 VLED- Power Negative Backlight Power Supply 4 VLED-
5 GND Power Power GND (0V)
6 VCOM Input Common voltage
7 DVDD Power Power for Digital Circuit
8 MODE Input DE/SYNC mode select (*1)
9 DE Input Data input enable
10 VS Input Vertical Sync Input
11 HS Input Horizontal Sync Input
Input 8bit Data for Blue : : 19 B0 20 G7 Input 8bit Data for Green : : 27 G0 28 R7 Input 8bit Data for Red : : 35 R0
36 GND Power Power GND (0V)
37 DCLK Input Sample clock(*2)
38 GND Power Power GND (0V)
39 L/R Input Left / right selection (*3)
40 U/D Input Up/down selection (*3)
41 VGH Power Gate ON Voltage
42 VGL Power Gate OFF Voltage
43 AVDD Power Power for Analog Circuit
44 RESET Input Global reset pin (*4)
45 NC - No connection
46 VCOM Input Common Voltage
47 DITHB Input Dithering function (*5)
48 GND Power Power GND (0V)
49 NC -
Note: * 1: DE/SYNC mode select. Normally pull high. When select DE mode, MODE=”1”, VS and HS must pull high. When select SYNC mode, MODE= “0”, DE must be grounded. * 2: Data shall be latched at the falling edge of DCLK. * 3: Selection of scanning mode *4: Global reset pin. Active low to enter reset state. Suggest to connect with an RC reset circuit for stability. Normally pull high. *5: Dithering function enable control, normally pull high. When DITHB=”1”,Disable internal dithering function. When DITHB=”0”,Enable internal dithering function. Setting of scan control input Scanning direction U/D L/R GND DVDD Up to down, left to right DVDD GND Down to up, right to left GND GND Up to down, right to left DVDD DVDD Down to up, left to right
TOPWAY LCD Module User Manual LMT070DDCFWD-6 URL: www.topwaydisplay.com www.topwaysz.com Document Name: LMT070DDCFWD-6-Manual-Rev0.1 Page: 5 of 11 5. Absolute Maximum Ratings Items Symbol Min. Max. Unit Condition Power voltage DVDD -0.3 5.0 V AVDD 6.5 13.5 V VGH -0.3 40.0 V VGL -20.0 0.3 V VGH -VGL - 40.0 V Operating Temperature TOP -20 70 °C No Condensation Storage Temperature TST -30 80 °C No Condensation Note: *1. This rating applies to all parts of the module. And should not be exceeded. *2. The operating temperature only guarantees operation of the circuit. The contrast, response speed, and the other specification related to electro-optical display quality is determined at the room temperature, TOP=25. *3. Ambient temperature when the backlight is lit (reference value) *4. Any Stresses exceeding the Absolute Maximum Ratings may cause substantial damage to the device. Functional operation of this device at other conditions beyond those listed in the specification is not implied and prolonged exposure to extreme conditions may affect device reliability. 6. Electrical Characteristics
6.1 DC Characteristics
Items Symbol Min. Typ. Max. Unit Remark Power voltage DVDD 3.0 3.3 3.6 V *2 AVDD 10.2 10.4 10.6 V VGH 14.5 15.0 15.5 V Input signal voltage VCOM 3.54 4.04 4.54 V Input logic high voltage VIH 0.7VDD - DVDD V *3 Input logic low voltage VIL 0 - 0.3DVDD V Note: *1.Be sure to apply DVDD and VGL to the LCD first, and then apply VGH. *2: DVDD setting should match the signals output voltage (refer to Note 3) of customer’s system board. *3: DCLK,HS,VS,RESET,U/D, L/R,DE,R0~R7,G0~G7,B0~B7,MODE,DITHB.
6.2 Current Consumption
Items Symbol Min. Typ. Max. Unit Remark Current for Driver IGH 0.05 0.2 1.0 mA VGH = 15.0V IGL 0.2 0.5 1.0 mA VGL = -10.0V IDVDD 1 4.0 10 mA DVDD=3.3V IAVDD 5 20 50 mA AVDD=10.4V
6.3 LED Backlight Circuit Characteristics
Top=25℃ Items Symbol MIN. TYP. MAX. Unit Note Forward Voltage Vf 8.8 10.5 V Forward Current If - 200 230 mA Cautions: Exceeding the recommended driving current could cause substantial damage to the backlight and shorten its lifetime.
TOPWAY LCD Module User Manual LMT070DDCFWD-6 URL: www.topwaydisplay.com www.topwaysz.com Document Name: LMT070DDCFWD-6-Manual-Rev0.1 Page: 6 of 11
6.4 Power Sequence
6.4.1 Power on:
DVDD →VGL→AVDD→VGH→Data→B/L
6.4.2 Power off:
B/L →Data→VGH→AVDD →VGL→DVDD Note :Data include R0~R7,B0~B7,G0~G7,U/D,L/R,DCLK,HS,VS,DE.
TOPWAY LCD Module User Manual LMT070DDCFWD-6 URL: www.topwaydisplay.com www.topwaysz.com Document Name: LMT070DDCFWD-6-Manual-Rev0.1 Page: 7 of 11 7. AC Characteristics
7.1 Timing Characteristics
Item Symbol MIN. TYP. MAX. Unit Remark HS setup time Thst 8 - - ns HS hold time Thhd 8 - - ns VS setup time Tvst 8 - - ns VS hold time Tvhd 8 - - ns Data setup time Tdsu 8 - - ns Data hole time Tdhd 8 - - ns DE setup time Tesu 8 - - ns DVDD Power On Slew rate TPOR - - 20 ms From 0 to 90% DVDD DCLK cycle time Tcph 20 - - ns DCLK pulse duty Tcwh 40 50 60 % Note: For the details of the timing, please see the Driver IC data sheet.
7.2 Input Clock and Data Timing Diagram
TOPWAY LCD Module User Manual LMT070DDCFWD-6 URL: www.topwaydisplay.com www.topwaysz.com Document Name: LMT070DDCFWD-6-Manual-Rev0.1 Page: 8 of 11
7.3 Timing
Item Symbol MIN. TYP. MAX. Unit Remark Horizontal Display Area thd - 800 - DCLK DCLK Frequency fclk 26.4 33.3 46.8 MHz One Horizontal Line th 862 1056 1200 DCLK HS pulse width thpw 1 - 40 DCLK HS Blanking thb 46 46 46 DCLK HS Front Porch thfp 16 210 354 DCLK Vertical Display Area tvd - 480 - TH VS period time tv 510 525 650 TH VS pulse width tvpw 1 - 20 TH VS Blanking tvb 23 23 23 TH VS Front Porch tvfp 7 22 147 TH
TOPWAY LCD Module User Manual LMT070DDCFWD-6 URL: www.topwaydisplay.com www.topwaysz.com Document Name: LMT070DDCFWD-6-Manual-Rev0.1 Page: 9 of 11
7.4 Data Input Format
Figure 6-4-1 Horizontal input timing diagram. Figure 6-4-2 Vertical input timing diagram.
TOPWAY LCD Module User Manual LMT070DDCFWD-6 URL: www.topwaydisplay.com www.topwaysz.com Document Name: LMT070DDCFWD-6-Manual-Rev0.1 Page: 10 of 11
7.5 Optical Characteristics
Item Symbol Condition MIN. TYP. MAX. UNIT Note. Viewing angle (CR≥10) θL 9 o’clock 60 70 - degree *2 θR 3 o’clock 60 70 - θT 12 o’clock 40 50 - θB 6 o’clock 60 70 - Response Time Tf Normal θ=0 o - 10 20 msec Tr - 15 30 msec Contrast ratio CR 400 500 - - Color chromaticlty WX 0.26 0.31 0.26 - WY 0.28 0.33 0.38 - Luminance L - 700 - cd/m2 *4 Luminance uniformity YU 70 75 - % *4 Note: *1. Definition of Contrast Ratio The contrast ratio could be calculate by the following expression: Contrast Ratio (CR) = Luminanc with all pixels white / Luminance with all pixels black Definition of Viewing Angle Definition of response time Definition of Luminance Uniformity Luminance uniformity (Lu)= Min. Luminance form pt1~pt9 / Max Luminance form Pt1~pt9
TOPWAY LCD Module User Manual LMT070DDCFWD-6 URL: www.topwaydisplay.com www.topwaysz.com Document Name: LMT070DDCFWD-6-Manual-Rev0.1 Page: 11 of 11 8. Precautions of using LCD Modules Mounting - Mounting must use holes arranged in four corners or four sides. - The mounting structure so provide even force on to LCD module. Uneven force (ex. Twist ed stress) should not applied to the module. And the case on which a module is mounted should have sufficient strength so that external force is not transmitted directly to the module. - It is suggested to attach a transparent protective plate to the surface in order to protect the polarizer. It should have sufficient strength in order to the resist external force. - The housing should adopt radiation structure to satisfy the temperature specification. - Acetic acid type and chlorine type materials for the cover case are not desirable because the former generates corrosive gas of attacking the polarizer at high temperature and the latter causes circuit break by electro-chemical reaction. - Do not touch, push or rub the exposed polarizers with glass, tweezers or anything harder than HB pencil lead. Never rub with dust clothes with chemical treatment. Do not touch the surface of polarizer for bare hand or greasy cloth.(Some cosmetics deteriorate the polarizer.) - When the surface becomes dusty, please wipe gently with absorbent cotton or other soft materials like chamois soaks with petroleum benzine. Normal-hexane is recommended for cleaning the adhesives used to attach front / rear polarizers. Do not use acetone, toluene and alcohol because they cause chemical damage to the polarizer. - Wipe off saliva or water drops as soon as possible. Their long time contact with polarizer Operating - The spike noise causes the mis-operation of circuits. It should be within the ±200mV level (Over and under shoot voltage) - Response time depends on the temperature.(In lower temperature, it becomes longer.) - Brightness depends on the temperature. (In lower temperature, it becomes lower.) And in lower temperature, response time(required time that brightness is stable after turned on) becomes longer. - Be careful for condensation at sudden temperature change. Condensation makes damage to polarizer or electrical contacted parts. And after fading condensation, smear or spot will occur. - When fixed patterns are displayed for a long time, remnant image is likely to occur. - Module has high frequency circuits. Sufficient suppression to the electromagnetic interference shall be done by system manufacturers. Grounding and shielding methods may be important to minimized the interference Electrostatic Discharge Control Since a module is composed of electronic circuits, it is not strong to electrostatic discharge. Make certain that treatment persons are connected to ground through wrist band etc. And don’t touch interface pin directly. Strong Light Exposure Strong light exposure causes degradation of polarizer and color filter. Storage When storing modules as spares for a long time, the following precautions are necessary. - Store them in a dark place. Do not expose the module to sunlight or fluorescent light. Keep t he temperature between 5°C and 35°C at normal humidity. - The polarizer surface should not come in contact with any other object. It is recommended that they be stored in the container in which they were shipped. Protection Film - When the protection film is peeled off, static electricity is generated between the film and polarizer. This should be peeled off slowly and carefully by people who are electrically grounded and with well ion-blown equipment or in such a condition, etc. - The protection film is attached to the polarizer with a small amount of glue. If some stress is applied to rub the protection film against the polarizer during the time you peel off the film, the glue is apt tore main on the polarizer. Please carefully peel off the protection film without rubbing it against the polarizer. - When the module with protection film attached is stored for a long time, sometimes there remains a very small amount of glue still on the polarizer after the protection film is peeled off. - You can remove the glue easily. When the glue remains on the polarizer surface or its vestige is recognized, please wipe them off with absorbent cotton waste or other soft material like chamois soaked with normal-hexane. Transportation The LCD modules should be no falling and violent shocking during transportation, and also should avoid excessive press, water, damp and sunshine.