4 Inch 720×720 Round TFT Display with Optional HDMI Board
4 Inch 720×720 Circular TFT Display Module with Optional HDMI Driver Board
Designed for products that require a circular visual interface, this 4-inch round TFT display module features a 720(RGB) × 720 resolution, 500 nits typical brightness and a normally black display mode. Its 101.52 × 101.52 mm active area provides a square pixel matrix within a circular display format, making it suitable for equipment that benefits from a distinctive, space-conscious user interface.
The module uses a-Si TFT technology and supports 16.7 million colors for displaying graphics, icons, status indicators and other visual information. With a non-touch configuration, it is intended for systems that use external buttons, rotary controls, keyboards or other input methods rather than an integrated capacitive touchscreen.
For system integration, the display offers a 3SPI + 18-bit RGB interface and a 0.5 mm-pitch connector. An optional HDMI driver board can be selected for compatible host systems, providing an alternative integration path for applications that use HDMI video output. The appropriate board, signal configuration and electrical compatibility should be confirmed before ordering.
Technical Specifications
| Parameter | Specification |
|---|---|
| Display Size | 4.0 inch |
| Resolution | 720(RGB) × 720 |
| Display Technology | a-Si TFT |
| Pixel Configuration | RGB Vertical Stripe |
| Display Mode | Normally Black |
| Active Area | 101.52 × 101.52 mm |
| Module Dimensions | 105.3 × 109.6 × 2.3 mm (as supplied; confirm dimensional labels) |
| Display Interface | 3SPI + 18-bit RGB |
| Connector Pitch | 0.5 mm |
| Touch Function | No touch panel |
| Backlight | LED |
| Number of Colors | 16.7M |
| Driver IC | NV3052CGRB |
| Contrast Ratio | 1000:1 (confirm datasheet notation) |
| Typical Brightness | 500 nits |
| Operating Temperature | -20°C to +70°C |
| Storage Temperature | -30°C to +80°C |
| Weight | TBD |
Key Features
-
4-Inch Circular Display Format: A round viewing format for distinctive embedded user interfaces.
-
720 × 720 Resolution: Supports detailed graphics, icons and visual status information.
-
500 Nits Typical Brightness: Provides clear display output in suitable indoor and controlled-light environments.
-
16.7 Million Colors: Enables full-color graphical content and interface elements.
-
Non-Touch Configuration: Suitable for products using separate physical input controls.
-
Optional HDMI Driver Board: Board option available for compatible HDMI-based host systems.
-
Wide Operating Temperature: Designed for operation from -20°C to +70°C.
Optional HDMI Driver Board
For projects that use an HDMI video source, an optional driver board may be available as a separate product configuration. Please select the required board option when ordering, or contact us to confirm compatibility with your host device and intended application.
The bare display module and the HDMI board configuration may require different connection methods and supporting hardware. Confirm the supplied package contents, power requirements, board compatibility and mechanical arrangement before integrating the display into your product.
DRAWING & Interface Pin Function
Potential Applications
The circular format may be considered for smart home control panels, industrial instrument interfaces, embedded equipment, smart appliances and other products requiring a round graphical display. Final suitability depends on the host system, mechanical design, interface compatibility and operating environment.
Contact us for interface confirmation, driver-board selection and project-specific integration support.
