You are referring to a 2.1-inch circular LCD panel with a resolution of 480x480 pixels, using IPS (In-Plane Switching) technology, and supporting MCU (microcontroller unit), RGB, and SPI (Serial Peripheral Interface) interfaces. This type of screen design is ideal for applications that require compact, high-resolution displays, such as smart watches, fitness trackers, medical devices, and personal electronics.
Display Features
This 2.1-inch circular TFT LCD panel offers a high-definition resolution of 480x4806
, which means it can present very detailed and smooth picture quality in a limited space. Each pixel is composed of three sub-pixels: red, green, and blue, ensuring true color reproduction and rich details. In addition, due to the use of IPS technology, the screen not only provides a wide viewing angle, but also ensures consistent and accurate colors when viewed from all angles12
.
Interface Options
For interfaces, this display supports multiple communication methods:
MCU interface: allows direct connection to a microcontroller, simplifies the system integration process, and can reduce overall power consumption.
RGB interface: It realizes image display by transmitting red, green and blue signals in parallel, which is suitable for application scenarios that require fast refresh rate.
SPI interface: This is a serial communication protocol that is suitable for situations where the data transmission rate is not particularly high. At the same time, it occupies a small number of pins, which helps to reduce the board space requirements7
.
Viewing angle and display mode
The full viewing angle function is a highlight of this display, and users can clearly see the content on the screen from almost any angle. This is very important for devices that may be used in different environments, such as smart watches worn on the wrist or handheld health monitoring instruments13
.
Application field
Due to its compact and exquisite design and excellent display performance, this type of circular TFT LCD panel is widely used in smart homes, smart wearable devices and other portable electronic products. For example, in smart watches, it can be used to display information such as time, weather forecast, sports data, etc.; in medical equipment, it can be used in small instruments such as heart rate monitors and blood glucose meters to provide users with an intuitive and easy-to-read operation interface6
.
Technical Parameters
According to the information provided by different suppliers, the specific technical parameters of this 2.1-inch circular TFT LCD panel also include but are not limited to the following points:
Active display area: approximately 53.28mm x 53.28mm15
Brightness: typically between 300 nit and 350 cd/m², depending on the model and manufacturer14
Operating temperature range: generally supports an operating temperature of -20°C to +70°C6
Supply voltage: mostly around 3.3V16
