2.76″ Round TFT LCD Module – 480×480 RGB+SPI Interface
2.76-inch round TFT LCD display module featuring 480×480 resolution, full 85° viewing angles, and 3-wire SPI + RGB18-bit interface. ST7701 driver IC with ultra-slim 2.34mm profile, anti-glare surface, and wide operating temperature range (-20°C to +70°C). Ideal for smartwatches, wearable devices, industrial HMIs, and IoT products requiring larger circular displays with fast video refresh capability.
2.76-Inch Round TFT LCD Module – 480×480 with RGB18bit + SPI Interface
This 2.76-inch round TFT LCD module features a 480×480 resolution, full 85° viewing angles, and a 3-wire SPI + RGB18-bit interface. It is designed for smartwatches, wearable devices, industrial HMIs, and IoT applications requiring larger circular displays with high-speed video refresh capabilities. The anti-glare surface and ultra-slim 2.34mm profile make it an excellent choice for space-constrained products requiring a larger viewing area.
Key Features
- Large Round Form Factor – 2.76-inch circular active area with 480×480 resolution for high-density watch-type and HMI displays
- Full Viewing Angles – 85°/85°/85°/85° viewing angles for consistent image quality from all directions
- RGB18bit + SPI Interface – 3-wire SPI for command control plus 18-bit parallel RGB for high-speed video data transfer
- Ultra-Slim Profile – 2.34mm module thickness for space-constrained designs
- Wide Operating Temperature – -20°C to +70°C for demanding environments
- Anti-Glare Surface – Reduces reflections for improved readability in various lighting conditions
- Normally Black TFT – Excellent contrast and deep blacks for vivid imagery
- 30,000-Hour LED Backlight – Reliable long-life illumination for extended product lifespan
- ST7701 Driver IC – Dedicated driver optimized for circular TFT displays with RGB interface support
Technical Specifications
| Parameter | Specification |
|---|---|
| Size | 2.76-inch diagonal |
| Dot Matrix | 480 x RGB x 480 |
| Module Dimension | 73.03 x 76.48 x 2.34 mm |
| Active Area | 70.128 x 70.128 mm |
| Pixel Pitch | 0.1461 x 0.1461 mm |
| LCD Type | TFT, Normally Black, Transmissive |
| Viewing Angle | 85°/85°/85°/85° (Full) |
| Interface | 3-Wire SPI + RGB18bit |
| Driver IC | ST7701 or Equivalent |
| Backlight Type | LED, Normally White |
| Touch Panel | Without Touch Panel |
| Surface Treatment | Anti-Glare |
| Operating Temperature | -20°C to +70°C |
| Storage Temperature | -30°C to +80°C |
| Power Supply Voltage (VCI) | 2.7V ~ 3.3V (Typ. 3.0V) |
| Power Supply Current | 25mA ~ 50mA (Typ. 25mA) |
| LED Voltage (VLED+) | 6.4V ~ 6.8V (Typ. 6.4V) |
| LED Current | 80mA ~ 100mA (Typ. 80mA) |
| LED Life Time | 30,000 Hours |
Pin Interface
| Pin | Symbol | I/O | Description |
|---|---|---|---|
| 1 | VLED+ | P | LED Anode |
| 2 | VLED1- | P | LED1 Cathode |
| 3 | VLED2- | P | LED2 Cathode |
| 4,34,40 | GND | P | Ground |
| 5 | VCI | P | Power Supply (3.0V) |
| 6 | RESET | I | Reset Signal (Active Low) |
| 7,8 | NC | – | No Connect |
| 9 | SDA | I | SPI Data (DIN) |
| 10 | SCK | I | SPI Clock |
| 11 | CS | I | SPI Chip Select |
| 12 | PCLK | I | RGB Dot Clock |
| 13 | DE | I | RGB Data Enable |
| 14 | VSYNC | I | RGB Frame Sync |
| 15 | HSYNC | I | RGB Line Sync |
| 16-33 | DB0-DB17 | I | 18-bit RGB Data (DB0-5: Blue, DB6-11: Green, DB12-17: Red) |
| 35-39 | NC | – | No Connect |
Applications
This round TFT LCD module is designed for a variety of consumer, industrial, and commercial applications where larger circular displays are required:
- Smartwatches and Wearable Devices – The 2.76-inch size and 480×480 resolution deliver a larger, more immersive watch-face experience
- Industrial HMIs – Larger circular display ideal for control panels, machine interfaces, and operator terminals
- Portable Medical Devices – High resolution and slim profile suit compact health monitoring equipment with fast refresh requirements
- IoT Products – RGB18bit + SPI interface enables high-speed video output for content-rich IoT applications
- Smart Home Appliances – Ideal for circular display panels on smart thermostats, control hubs, and appliances
- Automotive Displays – Suitable for aftermarket circular displays, instrument cluster add-ons, and vehicle HMIs
- Consumer Electronics – Perfect for compact, high-density display applications requiring fast image updates
Customization Options
We offer flexible customization to meet specific project requirements:
- Touch Panel – Resistive or capacitive touch panel integration available upon request
- Brightness – Backlight brightness can be customized for different environments
- Interface – Alternative interface options available depending on requirements
- FPC – Custom FPC length, connector type, and pinout available
- Operating Temperature – Extended temperature range versions available for industrial applications
- Surface Treatment – Optional surface treatments including anti-reflective or hard coating
- LCM Assembly – Custom mechanical integration and housing solutions available
Selection Guide
When selecting this round TFT LCD module for your project, consider the following factors:
- Display Resolution – 480×480 provides sharp image quality suitable for high-density content like watch faces, icons, and graphical interfaces
- Interface Compatibility – RGB18bit + SPI interface requires 18 data lines plus sync signals and 3 SPI lines; ensure your MCU/SoC supports parallel RGB output
- Refresh Rate – RGB interface enables high-speed frame updates ideal for animation, video, and interactive UI elements
- Power Requirements – VCI range 2.7V to 3.3V; LED backlight requires 6.4V~6.8V with 80mA typical current (two LED strings)
- Operating Environment – Temperature range -20°C to +70°C suitable for consumer and industrial applications
- Touch Integration – Touch panel not included, but available as a customization option
- Mounting Space – Module dimension 73.03 x 76.48 mm with 2.34mm thickness; verify mechanical clearance in your design
Frequently Asked Questions
What is the viewing angle of this TFT display?
This display offers full 85°/85°/85°/85° viewing angles, providing excellent visibility from all directions.
Does this module include a touch panel?
This version does not include a touch panel. However, touch panel integration is available as a customization option. Please contact our sales team for details.
What interface does this display use?
The module uses a combination of 3-wire SPI (for command control) and 18-bit parallel RGB (for high-speed video data). The RGB interface handles pixel data while SPI handles initialization and register configuration.
What is the typical power supply current?
Typical current consumption is 25mA at 3.0V VCI during normal operation.
What is the LED backlight voltage requirement?
The LED backlight requires a voltage of 6.4V to 6.8V with a typical current of 80mA. The module features two LED strings (VLED1- and VLED2-).
What is the LED backlight lifetime?
The LED backlight has a typical operating life of 30,000 hours at 25°C.
Can you provide samples?
Yes, sample units are available for evaluation. Please submit your requirements through the sample request form.
Is driver support available?
Yes, we provide initialization code, datasheets, and technical support for integration. The ST7701 driver IC is well-supported with readily available driver libraries.
What is the MOQ for mass production?
MOQ depends on specific configurations. Please contact our sales team for current MOQ information.
Related Resources
- TFT LCD Modules
- Round Displays
- RGB Interface Displays
- LCD Interface Selection Guide
- Customization Services
For volume pricing, customization, or engineering support, please contact our sales team.
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