The 1.28-inch 240x240 resolution round full-color/IPS LCD display is a small-size display component designed for compact devices. It not only has high resolution and wide viewing angles, but is also suitable for specific application scenarios due to its round design and use of IPS technology. This type of display is particularly suitable for smart watches, fitness trackers, and other portable or wearable electronic products due to its excellent color performance and viewing angle.
Technical specifications
Screen size: With a diameter of 1.28 inches (about 32.5 mm), the round design is ideal for products that require a unique form factor.
Resolution: 240x240 pixels, providing clear and detailed text and image display, suitable for menu navigation, icons, and small-scale graphic content.
Interface type: Usually uses SPI (Serial Peripheral Interface) interface, which is a synchronous serial communication protocol that allows efficient data transfer between microcontrollers and peripheral devices. In addition, some models may also support other interfaces such as I2C or parallel interface.
Display Technology: IPS (In-Plane Switching) screen technology ensures wide viewing angles and excellent color reproduction, allowing for a good visual experience when viewed from different angles. IPS technology brings higher contrast and more vivid colors.
Color Depth: Supports 65K colors (16-bit color depth) to display rich colors for vivid and realistic images.
Backlight Control: With LED backlight, users can adjust the brightness according to ambient lighting conditions to optimize visibility and power consumption.
Display Features
Built-in driver chip: Most of these displays are equipped with a dedicated LCD driver chip, such as ST7789 or GC9A01, which simplifies hardware design and reduces the need for external components.
Touch function (optional): Some models may also integrate capacitive or resistive touch screens, increasing the possibility of user interaction.
Wide viewing angle: Thanks to IPS technology, this display provides a wide viewing angle of nearly 180 degrees, maintaining a clear and color-accurate display from any angle.
Application Areas
This type of display is widely used in many fields, including but not limited to:
Smart watches and other wearable devices
Small medical instruments
Internet of Things (IoT) devices
Home automation control panels
Portable payment terminals such as mobile POS machines
Development considerations
Power management: Considering the issues of portability and battery life, an effective power management system is essential to extend the working time of the device.
Development tools and support: It is important to choose products with good documentation and technical support. Sample code, library functions, and development boards provided by manufacturers can help speed up the development process.
Graphics library: To simplify the development process, you can use existing graphics libraries (such as LVGL, uGFX, etc.), which provide functions such as drawing lines, rectangles, text, and even support more complex GUI elements.
Physical connection: Make sure that the main control board has enough pins to connect the SPI interface, and pay attention to the impact of signal line length on signal integrity.
Actual case
For example, Waveshare provides a 1.28-inch round TFT IPS LCD display with a resolution of 240x240, using the ST7789 driver IC and supporting 65K colors. This display has good color performance and wide viewing angles, making it an ideal choice for smartwatches and other small devices. In addition, there are similar products from other suppliers, such as the LH128R-IG01, which is also a 1.28-inch round TFT IPS display with a 240x240 resolution and 65K color support, suitable for a variety of application scenarios.
In summary, the 1.28-inch 240x240 resolution round full-color/IPS LCD display has become an ideal display solution for many small devices due to its compact design, high resolution, excellent color performance, and wide viewing angle. When choosing a specific display, be sure to consult the detailed specifications and technical documentation provided by the manufacturer to ensure that the selected display meets your project needs. In addition, evaluating samples or reference designs is also a good way to ensure compatibility and performance.
