TFT LCD display module YX40023A

IPScolor720 x 720

Overview
The YX40023A is a 4.0-inch round TFT-LCD display module by Yousee featuring 720×720 RGB resolution and a MIPI DSI interface. Driven by the ICNL9707AC-03 driver IC and using an IPS panel with All O'Clock viewing, the module provides uniform viewing characteristics and stable color reproduction across viewing angles. Its slim mechanical profile and 6-white-LED backlight make it suitable for embedded HMI, smart home devices, medical instruments, industrial control panels and AI terminals.

Key characteristics
Round 4.0-inch TFT-LCD; 720×720 HD resolution; MIPI DSI interface; ICNL9707AC-03 driver IC; IPS (All O'Clock) viewing; white LED backlight (6 LEDs); ultra-slim mechanical profile.

Basic Specifications
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
Driver IC: ICNL9707AC-03
Interface: MIPI DSI
Backlight: White LED × 6
Analog operating voltage (VCI): 3.2 V typ.
Logic operating voltage (IOVCC): 1.8 V typ.

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

Technical specifications

• Model: YX40023A
• Display size: 4.0 inch round
• Resolution: 720×720 (RGB)
• Active area: 101.52 × 101.52 mm
• Outline dimensions: 105.6 × 109.87 × 2.09 mm
• Pixel pitch: 0.141 × 0.141 mm
• Panel type: TFT-LCD, transmissive, IPS (All O'Clock)
• Driver IC: ICNL9707AC-03
• Interface: MIPI DSI
• Backlight: 6 × white LEDs
• Brightness: 300 cd/m²
• Contrast ratio: 1200:1
• Color gamut: 60%
• Response time: 30 ms
• Analog voltage (VCI): 3.2 V (typ.)
• Logic voltage (IOVCC): 1.8 V (typ.)
• Operating temperature: -20°C to +70°C
• Storage temperature: -30°C to +80°C
• Humidity: ≤90% RH (60°C)