Yousee 1.69″ Mini TFT LCD Display Module – YX16901A
The YX16901A is a 1.69-inch a-Si TFT LCD module featuring 240 × 280 RGB resolution and IPS full viewing angle technology.
It adopts a positive transmissive structure and integrates the ST7789V driver IC, providing stable performance for compact embedded systems.
The module supports 4-wire SPI interface, making it suitable for MCU-based designs requiring low power consumption and simplified system integration.
Basic Specifications
| Item | Specification |
|---|
| Display Size | 1.69 inch |
| LCD Type | a-Si TFT, Positive Transmissive |
| Resolution | 240 (RGB) × 280 |
| Viewing Angle | IPS, All O’clock |
| Driver IC | ST7789V |
| Interface | 4-wire SPI |
| Backlight | White LED × 3 (Parallel) |
| Module Input Voltage | 2.8 V (Typ.) |
| Operating Temperature | -20°C ~ +70°C |
| Storage Temperature | -30°C ~ +80°C |
Mechanical Dimensions

Optical Characteristics
| Parameter | Typical Value |
|---|
| Luminance | 300 cd/m² |
| Contrast Ratio | 800 : 1 |
| Response Time | 16 ms (Typ.) |
| Color Gamut | 60% |
| Luminance Uniformity | 80% |
| Viewing Angle | 80° / 80° / 80° / 80° (CR ≥ 10) |
Electrical Characteristics
Analog Voltage (VCC): 2.75 V (Typ.)
Logic Voltage (IOVCC): 1.8 V (Typ.)
Backlight Forward Voltage: 3.2 V (Typ.)
Backlight Current: 60 mA
Designed for low-voltage embedded systems with stable electrical performance.