Circular TFT LCD Display 1.28-inch 240×240 - RFA401280B - Raystar
Circular TFT LCD Display 1.28-inch 240×240 - RFA401280B - Raystar
Circular TFT LCD Display 1.28-inch 240×240 - RFA401280B - Raystar

Circular TFT LCD Display 1.28-inch 240x240 SPI IPS (GC9A01 IC)

Model No. RFA401280B-AYW-DNN

The RFA401280B-AYW-DNN is a 1.28-inch 240×240 circular TFT LCD display, designed as a compact circular TFT module for modern embedded applications. This circular TFT display adopts IPS technology and the GC9A01 driver IC, delivering wide viewing angles of 80° in all directions with stable color reproduction and clear image quality. With a normally black, transmissive TFT structure and an anti-glare surface, this circular TFT LCD display is ideal for wearable devices, smart meters, and portable instruments.

The RFA401280B-AYW-DNN circular TFT supports SPI interface for smooth system integration and operates over a wide temperature range from -20°C to +70°C, making this circular TFT display suitable for diverse embedded environments. Powered by a 2.7–3.3V supply, the circular TFT LCD display features an LED backlight with a typical lifetime of 20,000 hours, providing stable brightness and long-term performance.

If you need technical support or product quotes for the RFA401280B-AYW-DNN or other 1.28-inch 240×240 circular TFT LCD display modules, please feel free to contact our sales team!

Inquiry or Demo Code Datasheet Back Previous Next
  • General Specs
  • Interface Pin Function
  • Contour Drawing
  • Absolute Maximum Ratings
  • Electrical Characteristics
Item Dimension Unit
TFT Series IPS TFT LCD,Circular TFT LCD Display
Size (Diagonal) 1.28 inch
Dot Matrix / Resolution 240 × RGB × 240 (TFT) dots
Module Dimension 35.60 × 37.74 × 1.56 mm
Active Area 32.40 × 32.40 mm
Dot / Pixel Pitch 0.043 × 0.135 mm
LCD Type TFT, Normally Black, Transmissive
Viewing Angle 80/80/80/80 (IPS)
Backlight Type LED, Normally White
Control Board No
Power Board No
IC GC9A01
Interface SPI
Touch Panel Without Touch Panel
Surface Anti-Glare
Brightness 400 cd/㎡
O-Film No
Operating Temperature -20~+70 °C
Storage Temperature -30~+80 °C

SPI Interface for Circular TFT Display Integration

Pin No. Symbol Function
1-6 NC No connection
7 VLED+ Backlit positive
8 VLED- Backlit negative
9 GND Ground
10 CS Chip select signal
11 SCL Serial clock
12 SDA Serial data signal
13 RS Register select signal
14 TE TE signal
15 RESET LCD RESET Signal
16 VCI3.3V LCD Power supply
17 NC No connection
18 GND Ground

Mechanical Dimensions of the Circular TFT LCD Module

Circular TFT LCD Display 1.28-inch 240×240 - RFA401280B Contour Drawing - Raystar

Operating and Storage Conditions for Circular TFT LCD Display

Item Symbol Min Typ Max Unit
Operating Temperature TOP -20 - +70 ℃
Storage Temperature TST -30 - +80 ℃

Operating Conditions

Item Symbol Conditions Standard Value Unit
Min Typ Max
Power Supply Voltage for Analog VCI Ta= +25℃ 2.7 2.8 3.3 V
Input High Voltage for LCD VIH - 0.8Iovcc - Iovcc V
Input Low Voltage for LCD VIL - Vss - 0.2 Iovcc V
Output High Voltage for LCD VOH - 0.8Iovcc - Iovcc V
Output Low Voltage for LCD VOL - Vss - 0.2 Iovcc V

LED Driving Conditions

Parameter Symbol Min Typ Max Unit
LED Current - - 40 - mA
LED Voltage VLED+ 3.0 3.2 3.4 V
LED Life Time - - 20,000 - Hr
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