Description
The YX14011A is a 1.4-inch square TFT LCD display module featuring a 240×240 RGB resolution and an SPI interface, designed for wearable devices, handheld instruments, industrial controllers, smart home products, and IoT applications.
Powered by the ST7789V driver IC, the module delivers stable display performance with vivid colors, sharp graphics, and an All-O'Clock viewing angle, ensuring excellent visibility from every direction. The SPI interface enables simple hardware integration while reducing system complexity, making it an ideal solution for compact embedded designs.
With an outline dimension of 28.0 × 31.35 × 1.65 mm and an active display area of 25.2 × 25.2 mm, the YX14011A features an ultra-slim mechanical profile for space-constrained applications. Its compact structure, reliable optical performance, and industrial-grade design make it suitable for portable medical devices, smart meters, consumer electronics, industrial HMIs, and various embedded display systems. The module features a 1.4-inch TFT-LCD, 240×240 resolution, ST7789V driver IC, SPI interface, and All-O'Clock viewing direction.
Basic Specifications
| Item | Specification |
|---|
| Display Size | 1.4 inch |
| LCD Type | TFT-LCD, Transmissive |
| Resolution | 240 (RGB) × 240 |
| Active Area | 25.2 × 25.2 mm |
| Outline Dimensions | 28.0 × 31.35 × 1.65 mm |
| Pixel Pitch | 0.105 × 0.105 mm |
| Viewing Direction | All O'Clock |
| Driver IC | ST7789V |
| Interface | SPI |
| Backlight | White LED × 3 |
| LCM Input Voltage | 3.3 ±0.1 V |
Mechanical Drawing

Optical Characteristics
| Parameter | Typical |
|---|
| Resolution | 240 × 240 |
| Contrast Ratio | 500 : 1 |
| Color Gamut | 60% |
| Brightness | 1000 cd/m² |
| Luminance Uniformity | 80% |
| Viewing Angle (CR ≥ 10) | 80° / 80° / 80° / 80° |
| Response Time | 25 ms |
Operating Conditions
| Item | Range |
|---|
| Operating Temperature | -20°C ~ +80°C |
| Storage Temperature | -30°C ~ +80°C |
| Humidity | ≤90% RH (60°C) |