TFT LCD display module YX40009B

TFTIPScolor

Description
The YX40009B is a 4.0-inch IPS TFT LCD display module featuring 400×960 RGB resolution and a MIPI interface, intended for industrial automation, medical equipment, smart home devices, handheld terminals, portable instruments, and embedded HMI applications. Powered by the ST7701S driver IC, the module delivers sharp image quality, vivid colors, and an All O'Clock IPS viewing angle for excellent color consistency and visibility from every direction. The MIPI interface supports high-speed data transmission and compatibility with Linux, Android, and high-performance embedded platforms. With a slim mechanical design, the module simplifies system integration for compact embedded systems.

Basic Specifications
Display Size: 4.0 inch
LCD Type: IPS TFT-LCD, Transmissive
Resolution: 400 (RGB) × 960
Active Area: 39.18 × 94.03 mm
Outline Dimensions: 42.90 × 102.08 × 2.23 mm
Pixel Pitch: 0.0979 × 0.0979 mm
Viewing Direction: All O'Clock
Driver IC: ST7701S
Interface: MIPI
Backlight: White LED × 8
Analog Operating Voltage: 2.8 V Typ.

Mechanical Drawing
Mechanical drawing and dimension diagram available for integration reference.

Optical Characteristics
Resolution: 400 × 960
Contrast Ratio: 600 : 1 (typ.)
Color Gamut: 60% (typ.)
Brightness: 400 cd/m² (typ.)
Luminance Uniformity: 80% (typ.)
Viewing Angle (CR ≥ 10): 80° / 80° / 80° / 80°
Response Time: 25 ms (typ.)

Operating Conditions
Operating Temperature: -20°C ~ +70°C
Storage Temperature: -30°C ~ +80°C
Humidity: ≤90% RH (60°C)

Features / Technical specifications

• Model: YX40009B
• Display size: 4.0 inch
• Resolution: 400×960 RGB
• LCD type: IPS TFT-LCD, transmissive
• Viewing direction: All O'Clock (IPS)
• Driver IC: ST7701S
• Interface: MIPI
• Active area: 39.18 × 94.03 mm
• Outline dimensions: 42.90 × 102.08 × 2.23 mm
• Pixel pitch: 0.0979 × 0.0979 mm
• Backlight: 8 × White LEDs
• Analog operating voltage: 2.8 V (typ.)
• Brightness: 400 cd/m² (typ.)
• Contrast ratio: 600:1 (typ.)
• Color gamut: 60% (typ.)
• Luminance uniformity: 80% (typ.)
• Viewing angle (CR≥10): 80°/80°/80°/80°
• Response time: 25 ms (typ.)
• Operating temperature: -20°C to +70°C
• Storage temperature: -30°C to +80°C
• Humidity: ≤90% RH (60°C)