TFT LCD display module YX21001A

IPScolor480 x 480

Product overview
The YX21001A is a 2.1-inch round TFT-LCD display module with 480×480 RGB resolution, IPS (All O'Clock) viewing direction and ST7701S driver IC. Its hybrid 3SPI + 18-bit RGB interface simplifies initialization while supporting high-speed RGB data, making it suitable for compact embedded HMI and industrial control panels.

Applications

• Embedded systems
• Industrial control equipment
• Smart home products
• Wearable devices
• Smart control panels, medical instruments, AI terminals, IoT devices

Key features

• Round 2.1-inch TFT-LCD, transmissive
• Resolution: 480 (RGB) × 480
• IPS (All O'Clock) wide viewing direction
• Driver IC: ST7701S
• Interface: 3SPI + 18-bit RGB (hybrid interface for simplified init and high-speed RGB)
• Backlight: 4 × white LEDs
• Compact outline and slim profile for space-constrained integration

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
Driver IC: ST7701S
Interface: 3SPI + 18-bit RGB
Backlight: White LED × 4
Analog operating voltage: 2.8 V Typ.

Optical characteristics
Resolution: 480 × 480
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 conditions
Operating temperature: -20°C to +70°C
Storage temperature: -30°C to +80°C
Humidity: ≤90% RH (60°C)

Technical specifications

• Model: YX21001A
• Display format: Circular 2.1"
• 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
• Panel: TFT, transmissive, IPS (All O'Clock)
• Driver IC: ST7701S
• Interface: 3SPI + 18-bit RGB
• Backlight: 4 × white LEDs
• Typical analog operating voltage: 2.8 V
• Brightness (typ.): 300 cd/m²
• Contrast ratio (typ.): 600:1
• Color gamut (typ.): 60%
• Response time (typ.): 25 ms
• Operating temp range: -20°C to +70°C
• Storage temp range: -30°C to +80°C
• Humidity: ≤90% RH (60°C)