Published by Shenzhen Hongguang Display Co., Ltd.

Introduction

Circular TFT LCD screens have become a core customized display solution for automotive instrumentation, smart home control panels, and industrial monitoring equipment, breaking the layout limitations of traditional rectangular liquid crystal modules. This article focuses on our newly launched 2.76-inch round TFT LCD (model HG028HS006T01), elaborating on its core technical parameters, structural design advantages, environmental adaptability and typical industrial application scenarios.

1. Core Technical Parameter Breakdown

The module adopts advanced IPS TFT transmission display technology, with standardized and stable electrical and optical indicators to meet long-duration industrial operating demands:

1. Resolution: 480×480 Square Pixel Matching Circular Outline
The 1:1 square pixel layout perfectly fits the circular active area of the 2.76-inch screen, eliminating uneven edge pixel compression that plagues irregular-size screens. Every coordinate point of the circular dial UI can achieve uniform pixel density, which greatly improves the visual precision of automotive speedometers, pressure gauges and rotary control interfaces.

2. Luminance: 700 cd/m² High Brightness Readability
A built-in high-efficiency LED backlight system delivers 700 cd/m² standard brightness. The high-luminance design guarantees clear screen visibility under strong ambient light, including outdoor equipment cabins and car cockpits exposed to direct sunlight, without reflection or screen fading.

3. Interface: MIPI Standard Communication Protocol
Equipped with mature MIPI interface transmission, it features low power consumption, high signal transmission efficiency and strong anti-interference performance. The interface layout on the FPC flexible cable is optimized, compatible with most mainstream industrial main control chips, reducing secondary development difficulty for system integrators.

4. Operating Temperature: -20℃ ~ +70℃ Wide Temperature Range
Customized liquid crystal material and backlight drive components support stable operation in extreme temperature environments. It can work normally in cold northern vehicle equipment and high-temperature factory monitoring terminals, avoiding display lag, color distortion or backlight failure caused by temperature fluctuation.

2. Structural & Touch Configuration Advantages

This round display integrates a G+F-F capacitive touch layer as an optional assembly (CTP+LCM integrated module):

• The overall module thickness is controlled at 4.73±0.2mm, with a circular outer diameter of 106±0.2mm. The ultra-thin design reserves sufficient assembly space for compact embedded devices.

• The IPS full viewing angle optical structure ensures consistent color and brightness from all horizontal and vertical viewing angles, a critical feature for multi-angle observation scenarios such as vehicle dashboards.

• The flexible FPC connector simplifies wiring assembly for mass production, supporting automated SMT processing to lower client manufacturing costs.

3. Industrial Reliability Verification: High & Low Temperature Environmental Testing

All our circular LCD modules pass strict independent high-low temperature laboratory aging tests before delivery. The equipment simulates continuous operation cycles from -20℃ to +70℃ for 72 hours, testing backlight stability, touch sensitivity and display color consistency throughout the temperature cycle.
This standardized reliability screening procedure effectively reduces after-sales failure rates for terminal products, making the module suitable for long-term uninterrupted industrial and automotive equipment operation.

4. Main Application Fields

1. Automotive instrumentation: motorcycle speedometers, new energy vehicle secondary dashboards

2. Industrial control: circular pressure/temperature monitoring gauges, automation equipment rotary control screens

3. Smart consumer devices: circular smart home knobs, wearable industrial terminals

4. Medical miniature monitoring display panels

Conclusion

As customized circular display demand continues to rise across automotive and industrial sectors, our 2.76-inch 480×480 TFT LCD module balances optical performance, environmental adaptability and integration convenience. Supported by our complete production line and dedicated technical testing team, we also provide personalized customization for FPC length, touch function, backlight brightness and interface definition to match differentiated client project requirements.

For technical datasheets, sample testing and customized solution consultation, please contact the business team of Shenzhen Hongguang Display Co., Ltd.

Keywords: Round TFT LCD, 2.76 inch circular display, IPS industrial screen, MIPI interface LCD, wide temperature instrument display