Product OverviewThe YX40025A is a 4.0-inch round high-resolution TFT LCD display module with 720×720 RGB pixels and 3SPI + 18-bit RGB interface. Built on IPS technology for consistent All O'Clock viewing, it delivers wide viewing angles, accurate color reproduction and stable image clarity for industrial HMIs and embedded terminals.
Key Features- Display Size: 4.0 inch round
- Resolution: 720 (RGB) × 720
- Interface: 3SPI + 18-bit RGB (3SPI initialization + 18-bit RGB data)
- Viewing Direction: IPS (All O'Clock)
- Backlight: White LED × 6
- Compact outline with a slim mechanical profile
Basic SpecificationsItem: Specification
Display Size: 4.0 inch
LCD Type: TFT-LCD, Transmissive
Resolution: 720 (RGB) × 720
Active Area: 101.52 × 101.52 mm
Outline Dimensions: 105.6 × 109.87 × 2.09 mm
Pixel Pitch: 0.141 × 0.141 mm
Viewing Direction: All O'Clock (IPS)
Driver IC: —
Interface: 3SPI + 18-bit RGB
Backlight: White LED × 6
Analog Operating Voltage (VCC): 3.2 V Typ.
Logic Operating Voltage (IOVCC): 1.8 V Typ.
Optical CharacteristicsResolution: 720 × 720
Contrast Ratio: 1200 : 1
Color Gamut: 60%
Brightness: 300 cd/m²
Luminance Uniformity: 80%
Viewing Angle (CR ≥ 10): 80° / 80° / 80° / 80°
Response Time: 30 ms
Operating ConditionsOperating Temperature: -20°C ~ +70°C
Storage Temperature: -30°C ~ +80°C
Humidity: ≤90% RH (60°C)
Mechanical DrawingMechanical outline and drawing are provided for integration and mounting reference.
Applications- Industrial control panels and HMIs
- Smart home devices and IoT terminals
- Medical instruments and healthcare equipment
- AI terminals and embedded systems
Technical specifications- Model: YX40025A
- Display Size: 4.0 inch
- Resolution: 720 (RGB) × 720
- LCD Type: TFT-LCD, Transmissive
- Active Area: 101.52 × 101.52 mm
- Outline Dimensions: 105.6 × 109.87 × 2.09 mm
- Pixel Pitch: 0.141 × 0.141 mm
- Viewing Direction: IPS (All O'Clock)
- Interface: 3SPI + 18-bit RGB
- Backlight: White LED × 6
- Analog Operating Voltage (VCC): 3.2 V Typ.
- Logic Operating Voltage (IOVCC): 1.8 V Typ.
- Contrast Ratio: 1200 : 1
- Brightness: 300 cd/m²
- Color Gamut: 60%
- Response Time: 30 ms
- Operating Temperature: -20°C ~ +70°C
- Storage Temperature: -30°C ~ +80°C
- Humidity: ≤90% RH (60°C)