Model No. WF121BTXAPLNBA
►Size : 12.1-inch
►Resolution : 1280x800 dots
►View Direction : IPS
►Interface : LVDS
►Driver IC : EK77526AHI205A
►Control-Board : No
►Brightness (cd/m²) : 300
►Frame Through Hole : No
►Touch Screen : Projected Capacitive Touch Panel (PCAP)
►Detect Point : 10 Fingers
WF121BTXAPLNBA is a 12.1-inch color TFT LCD module boasting a resolution of 1280x800 dots and a projected capacitive touch panel (PCAP). Featuring a built-in ILI2132 IC, its PCAP touch panel supports 10-point touch functionality.
This TFT display is equipped with the EK77526AHI205A driver IC, designed to support LVDS Interfaces. LVDS interface technology is gaining popularity for TFT displays requiring high-speed data transmission. Offering high data transmission rates with low power consumption, LVDS interface boast advantages such as compatibility with lower voltage power supplies, noise reduction, enhanced noise suppression ability, and reliable signal transmission.
WF121BTXAPLNBA utilizes IPS technology to deliver wider viewing angles, offering typical values of 89 degrees in all directions (left, right, up, and down), with an aspect ratio of 16:9. It features a contrast ratio of 1,000:1 (typical value) and a brightness of 300 nits (typical value).
The power supply voltage for the LCD module ranges from 3.0 V to 3.6 V, with a typical value of 3.3 V. Operating temperatures span from -20 °C to +70 °C, while the storage temperature range extends from -20 °C to +70 °C.
With its specifications, the 12.1-inch color TFT LCD display is highly suitable for various applications, including medical equipment, fishfinders, industrial monitoring devices, home security systems, and more.
| Item | Dimension | Unit |
|---|---|---|
| Size | 12.1 | inch |
| Dot Matrix | 1280 x R.G.B. x 800 | dots |
| Module dimension | 308.0 x 214.1 x 14.2 (MAX) | mm |
| Active area | 261.12 x 163.2 | mm |
| Pixel pitch | 0.204 x 0.204 | mm |
| LCD type | TFT, Normally Black, Transmissive | |
| Viewing Angle | 89/89/89/89 | |
| TFT Interface | LVDS | |
| TFT Driver IC | EK77526AHI205A | |
| Aspect Ratio | 16:9 | |
| Backlight Type | LED, Normally White | |
| PCAP Driver IC | ILI2132 | |
| PCAP Resolution | 16384*16384 | |
| PCAP Interface | USB (I2C available) | |
| PCAP FW Version | 0x07.0x00.0x00.0x00.0x02.0x00.0x00.0x00 | |
| Touch Panel | With PCAP | |
| Surface Treatment | Glare | |
| Item | Symbol | Min | Typ | Max | Unit |
|---|---|---|---|---|---|
| Operating Temperature | TOP | -20 | － | +70 | ℃ |
| Storage Temperature | TST | -20 | － | +70 | ℃ |
| Parameter | Symbol | Value | Unit | |||
|---|---|---|---|---|---|---|
| Min. | Typ. | Max. | ||||
| Power Supply Voltage | Vcc | 3.0 | 3.3 | 3.6 | V | |
| Permissive Ripple Voltage | VRP | - | 50 | - | mV | |
| Rush Current | IRUSH | 1.5 | A | |||
| Initial Stage Current | IIS | - | - | 1.0 | A | |
| Power Supply Current | White | - - |
- | 530 | 675 | mA |
| Black | - | 350 | 430 | mA | ||
| LVDS Differential Input High Threshold | VTH(LVDS) | +100 | - | - | mV | |
| LVDS Differential Input Low Threshold | VTL(LVDS) | - | - | -100 | mV | |
| LVDS Common Mode Voltage | VCM | 1.125 | 1.2 | 1.375 | V | |
| LVDS Differential Input Voltage | |VID| | 100 | - | 600 | mV | |
| Terminating Resistor | RT | - | 100 | - | Ohm | |
| Supply CTP | VDDT(3.3V) | 3.0 | 3.3 | 3.6 | V | |
| IDDT(3.3V) | - | 85 | 130 | mA | ||
| VDDT(5V) | - | 5.0 | - | V | ||
| IDDT(5V) | - | 90 | 135 | mA | ||
| Pin No. | Symbol | Description |
|---|---|---|
| 1 | 12V | LED power |
| 2 | 12V | LED power |
| 3 | 12V | LED power |
| 4 | 12V | LED power |
| 5 | ENLED | Enable pin |
| 6 | Dimming | Backlight Adjust |
| 7 | NC | No connection |
| 8 | NC | No connection |
| 9 | VCC | Power supply: +3.3V |
| 10 | VCC | Power supply: +3.3V |
| 11 | GND | Ground |
| 12 | GND | Ground |
| 13 | RX0- | Negative transmission data of pixel 0 |
| 14 | RX0+ | Positive transmission data of pixel 0 |
| 15 | GND | Ground |
| 16 | RX1- | Negative transmission data of pixel 1 |
| 17 | RX1+ | Positive transmission data of pixel 1 |
| 18 | GND | Ground |
| 19 | RX2- | Negative transmission data of pixel 2 |
| 20 | RX2+ | Positive transmission data of pixel 2 |
| 21 | GND | Ground |
| 22 | RXCLK- | Negative of clock |
| 23 | RXCLK+ | Positive of clock |
| 24 | GND | Ground |
| 25 | RX3- | Negative transmission data of pixel 3 |
| 26 | RX3+ | Positive transmission data of pixel 3 |
| 27 | GND | Ground |
| 28 | SEL6/8 | LVDS 6/8 bit select function control, |
| Low or NC → 6 bit Input Mode | ||
| High → 8bit Input Mode | ||
| 29 | GND | Ground |
| 30 | NC | No connection |
| Pin | Symbol | Function |
|---|---|---|
| 1 | VDDT(3.3V) | Power supply |
| 2 | SDA | I2C data input and output |
| 3 | SCL | I2C clock inputI2C clock input |
| 4 | RST | External Reset, Low is active |
| 5 | INT | External interrupt to the host |
| 6 | VSS | Ground for analog circuit |
| Pin | Symbol | Function |
|---|---|---|
| 1 | VDDT(5V) | Power supply |
| 2 | D- | Data - |
| 3 | D+ | Data + |
| 4 | VSS | System ground |
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