TFT LCD display module YX21002A

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Overview
The YX21002A is a 2.1-inch high-resolution round TFT LCD display module featuring 480×480 RGB resolution and a MIPI DSI interface. It is designed for wearable devices, smart home products, medical equipment, and advanced embedded systems. Powered by the ST7701S driver IC and built with IPS TFT technology, the module offers All-O'Clock viewing angle, vivid colors, excellent image clarity, and consistent visual performance from every direction. The high-speed MIPI interface enables fast data transmission suitable for Linux, Android, and other high-performance embedded platforms.

Key Features

• Circular 2.1" TFT LCD module, high resolution 480×480 RGB
• Interface: MIPI DSI for high-speed data transfer
• Driver IC: ST7701S
• IPS technology providing All-O'Clock viewing direction
• White LED backlight (4 LEDs)
• Compact outline and slim profile suitable for wearables and embedded devices

Basic Specifications
Display Size: 2.1 inch
LCD Type: TFT-LCD, Transmissive
Resolution: 480 (RGB) × 480
Active Area: 53.28 × 53.28 mm
Outline Dimensions: 56.18 × 59.71 × 2.30 mm
Pixel Pitch: 0.111 × 0.111 mm
Viewing Direction: All O'Clock (IPS)
Driver IC: ST7701S
Interface: MIPI DSI
Backlight: White LED × 4
Analog Voltage (VCI): 2.8 V Typ.
Logic Voltage (IOVCC): 1.8 V Typ.

Optical Characteristics
Resolution: 480 × 480
Contrast Ratio (typical): 600 : 1
Color Gamut (typical): 60%
Brightness (typical): 300 cd/m²
Luminance Uniformity (typical): 80%
Viewing Angle (CR ≥ 10): 80° / 80° / 80° / 80° (typical)
Response Time (typical): 25 ms

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

Mechanical
Compact outline dimension: 56.18 × 59.71 × 2.30 mm; Active display area: 53.28 × 53.28 mm. Mechanical drawing available in product documentation (mechanical image provided on product page).

Applications
Suitable for smart watches, wearable electronics, smart home devices, medical terminals, industrial HMIs, AI devices, and IoT applications.

Caractéristiques / spécifications techniques

• Model: YX21002A
• Display Size: 2.1 inch
• Resolution: 480 (RGB) × 480
• LCD Type: TFT-LCD, Transmissive
• Viewing Direction: IPS (All O'Clock)
• Driver IC: ST7701S
• Interface: MIPI DSI
• Active Area: 53.28 × 53.28 mm
• Outline Dimensions: 56.18 × 59.71 × 2.30 mm
• Pixel Pitch: 0.111 × 0.111 mm
• Backlight: White LED × 4
• Analog Voltage (VCI): 2.8 V Typ.
• Logic Voltage (IOVCC): 1.8 V Typ.
• Contrast Ratio: 600 : 1 (typ.)
• Color Gamut: 60% (typ.)
• Brightness: 300 cd/m² (typ.)
• Luminance Uniformity: 80% (typ.)
• Viewing Angle (CR ≥ 10): 80° / 80° / 80° / 80°
• Response Time: 25 ms (typ.)
• Operating Temperature: -20°C ~ +70°C
• Storage Temperature: -30°C ~ +80°C
• Humidity: ≤90% RH (60°C)