Model No. WF70B4TIAGDNGB
►Size : 7 inch
►Resolution : 800 x 480 dots
►View Direction : 12H
►Interface : RGB
►Driver IC : HX8264 & HX8664
►Control-Board : No
►Brightness (cd/m²): 300
►Frame Through Hole: No
►Touch Panel : Projected capacitive touch (PCAP)
►PCAP IC : GT911
►Touch Points: 5
The WF70B4TIAGDNGB is a 7-inch TFT LCD with a capacitive touchscreen. It features a resolution of 800x480 pixels, brightness of 300 nits, a contrast ratio of 800:1, and supports 5-point multi-touch. The LED backlight has a typical lifetime of 50,000 hours.
This module uses the HX8264 and HX8664 driver ICs and supports a 24-bit RGB interface. The capacitive touch panel is controlled by the GT911 IC through an I2C interface. The operating temperature range is -20°C to +70°C, and the storage temperature range is -30°C to +80°C.
Compared with the WF70B4TIAGDNGA model, the WF70B4TIAGDNGB adopts the GT911 touch IC, while the WF70B4TIAGDNGA uses the ILI2130 IC. In addition, the cover glass (CG) of the WF70B4TIAGDNGB is larger than the TFT panel, which provides easier mechanical fixation in applications.
| Item | Dimension | Unit |
|---|---|---|
| Size | 7.0 | inch |
| Dot Matrix | 800 × RGB × 480 (TFT) | dots |
| Module dimension | 202.0 × 135.5 × 8.5 | mm |
| Active area(AA) | 154.08 × 85.92 | mm |
| Pixel Pitch | 0.1926 × 0.179 | mm |
| LCD type | TFT, Normally White, Transmissive | |
| View Direction | 12 o'clock | |
| Gray Scale Inversion Direction | 6 o'clock | |
| Aspect Ratio | 16:9 | |
| Backlight Type | LED, Normally White | |
| TFT Interface | 24-bit RGB | |
| Color arrangement | RGB-STRIPE | |
| TFT Driver IC | HX8264 & HX8664 or Equivalent | |
| CTP IC | GT911 | |
| CTP Interface | I2C | |
| CTP FW Version | 67 | |
| CTP Resolution | 1024*600 | |
| Touch Panel | Projected Capacitive Touch Panel (PCAP) | |
| Surface | Glare | |
| Item | Symbol | Min | Typ | Max | Unit |
|---|---|---|---|---|---|
| Operating Temperature | TOP | -20 | － | +70 | ℃ |
| Storage Temperature | TST | -30 | － | +80 | ℃ |
| Item | Symbol | Min | Typ | Max | Unit |
|---|---|---|---|---|---|
| Supply Voltage For Logic | VCC | 3.0 | 3.3 | 3.6 | V |
| Power voltage | AVDD | 10.2 | 10.4 | 10.6 | V |
| Power Supply For Current | VCC =3.3V | - | 4.3 | - | mA |
| Power voltage | VGH | 14.5 | 15.0 | 15.5 | V |
| Power voltage | VGL | -10.5 | -10 | -9.5 | V |
| Input signal voltage | VCOM | 3.54 | 4.04 | 4.54 | V |
| Supply CTP | VDDT | 3.1 | 3.3 | 3.5 | V |
| ICTP | － | 16 | 24 | mA |
| Parameter | Symbol | Min | Typ | Max | Unit |
|---|---|---|---|---|---|
| LED current | - | - | 180 | - | mA |
| LED voltage | VLED+ | 8.4 | 9.8 | 11.0 | V |
| LED Life Time | - | 50,000 | - | - | Hr |
| Pin | Symbol | Function |
|---|---|---|
| 1 | LED+ | Power supply for backlight |
| 2 | LED+ | Power supply for backlight |
| 3 | LED- | Backlight ground |
| 4 | LED- | Backlight ground |
| 5 | GND | Power ground |
| 6 | VCOM | Common voltage |
| 7 | VCC | Power for Digital Circuit |
| 8 | MODE | DE/SYNC mode select |
| 9 | DE | Data Input Enable (DEN) |
| 10 | VS | Vertical Sync Input (VSD) |
| 11 | HS | Horizontal Sync Input (HSD) |
| 12 | B7 | Blue data(MSB) |
| 13 | B6 | Blue data |
| 14 | B5 | Blue data |
| 15 | B4 | Blue data |
| 16 | B3 | Blue data |
| 17 | B2 | Blue data |
| 18 | B1 | Blue data |
| 19 | B0 | Blue data(LSB) |
| 20 | G7 | Green data(MSB) |
| 21 | G6 | Green data |
| 22 | G5 | Green data |
| 23 | G4 | Green data |
| 24 | G3 | Green data |
| 25 | G2 | Green data |
| 26 | G1 | Green data |
| 27 | G0 | Green data(LSB) |
| 28 | R7 | Red data(MSB) |
| 29 | R6 | Red data |
| 30 | R5 | Red data |
| 31 | R4 | Red data |
| 32 | R3 | Red data |
| 33 | R2 | Red data |
| 34 | R1 | Red data |
| 35 | R0 | Red data(LSB) |
| 36 | GND | Power Ground |
| 37 | DCLK | Sample clock (CLKIN) |
| 38 | GND | Power Ground |
| 39 | L/R | Left / right selection |
| 40 | U/D | Up/down selection |
| 41 | VGH | Gate ON Voltage |
| 42 | VGL | Gate OFF Voltage |
| 43 | AVDD | Power for Analog Circuit |
| 44 | RESET | Global reset pin. |
| 45 | NC | No connection |
| 46 | VCOM | Common Voltage |
| 47 | DITHB | Dithering function |
| 48 | GND | Power Ground |
| 49 | NC | No connection |
| 50 | NC | No connection |
| Pin | Symbol | Function |
|---|---|---|
| 1 | VSS | Ground for analog circuit |
| 2 | VDDT | Power Supply : +3.3V |
| 3 | SCL | I2C clock input |
| 4 | NC | No connect |
| 5 | SDA | I2C data input and output |
| 6 | NC | No connect |
| 7 | /RST | External Reset, Low is active |
| 8 | NC | No connect |
| 9 | /INT | External interrupt to the host |
| 10 | VSS | Ground for analog circuit |
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