The YX39501B is a 3.95-inch TFT LCD display module featuring 320×480 resolution with SPI interface, designed for industrial control panels, handheld devices, and embedded HMI systems.
Using a TN transmissive TFT panel optimized for 12-o’clock viewing direction, this display provides clear front-view readability, stable brightness, and reliable grayscale performance in fixed-orientation applications such as meters, medical terminals, and portable instruments.
Powered by the ST7796S driver IC, the YX39501B supports efficient SPI communication and delivers stable, cost-effective display performance for MCU-based systems.
Basic Specifications
| Item | Specification |
|---|
| Display Size | 3.95 inch |
| LCD Type | a-Si TFT-LCD, Positive Transmissive |
| Resolution | 320 (RGB) × 480 |
| Active Area | 55.68 × 83.52 mm |
| Outline Dimensions | 60.20 × 94.00 × 2.39 mm |
| Pixel Pitch | 0.174 × 0.174 mm |
| Viewing Direction | 12 O’Clock |
| Driver IC | ST7796S |
| Interface | SPI |
Mechanical Drawing
Optical Characteristics
| Parameter | Typical |
|---|
| Resolution | 320 × 480 |
| Contrast Ratio | 500 : 1 |
| Color Gamut | 60% |
| Luminance | 300 cd/m² |
| Luminance Uniformity | 80% |
| Viewing Angle (CR ≥ 10) | 60° (L/R/U), 55° (D) |
| Response Time | 16 ms |
Operating Conditions
| Item | Range |
|---|
| Operating Temperature | -20°C ~ +70°C |
| Storage Temperature | -30°C ~ +80°C |
| Humidity | ≤ 90% RH (60°C) |