TFT LCD display module YX40009A

IPScolor400 x 960

Product Overview
The YX40009A is a 4.0-inch IPS TFT LCD display module with 400×960 RGB resolution and an SPI + 18-bit RGB interface. Designed for industrial automation, medical equipment, handheld terminals and embedded HMIs, it provides consistent All O'Clock viewing angles, accurate color reproduction and a slim form factor for compact product integration.

Key Features

• Driver IC: ST7701S supporting SPI + RGB operation for flexible register control and high-speed parallel data.
• Slim mechanical profile suitable for compact electronic devices and portable instruments.
• White LED × 8 backlight with typical analog operating voltage of 2.8 V.
• Wide operating temperature range and humidity tolerance for industrial environments.
• Balanced optical performance: contrast, brightness and response time optimized for HMI use.

Mechanical & Optical
The module features a compact outline and a transmissive IPS panel ensuring wide viewing angles and stable color across viewing directions. Mechanical dimensions and optical measurements support seamless integration into control panels and handheld enclosures.

Applications

• Industrial HMIs and smart controllers
• Medical devices and portable diagnostic instruments
• Handheld terminals and embedded devices
• Smart home controls and compact consumer electronics

Mechanical Drawing / Images
Outline drawings and product images are provided to assist enclosure design, mounting and connector placement during development.

Technical Specifications

• Model: YX40009A
• Display Size: 4.0 inch
• Resolution: 400 (RGB) × 960
• LCD Type: IPS TFT-LCD, Transmissive
• 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 (IPS)
• Driver IC: ST7701S
• Interface: SPI + 18-bit RGB
• Backlight: White LED × 8
• Analog Operating Voltage: 2.8 V Typ.
• Contrast Ratio (typical): 600:1
• Color Gamut (typical): 60%
• Brightness (typical): 400 cd/m²
• Luminance Uniformity (typical): 80%
• Viewing Angle (CR ≥ 10): 80° / 80° / 80° / 80°
• Response Time (typical): 25 ms
• Outline / mechanical drawing available as image
• Operating Temperature: -20°C ~ +70°C
• Storage Temperature: -30°C ~ +80°C
• Humidity: ≤90% RH (60°C)