The 1.28-inch 240x240 resolution round LCD screen is a small-size display designed for compact devices. Its unique round appearance and high resolution make it an ideal choice for smart watches, fitness trackers, and other portable or wearable electronic products. Here are some details and technical features about this screen:
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 appearance.
Resolution: 240x240 pixels, providing clear and delicate 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 transmission between microcontrollers and peripheral devices.
Display technology: Some screens use IPS (In-Plane Switching) screen technology, which ensures a wide viewing angle and excellent color reproduction, so that you can get a good visual experience when viewing from different angles.
Color depth: Supports 65K colors (16-bit color depth), which can display rich colors for vivid and realistic image effects.
Screen Features
Built-in driver chip: Most of these screens come with a dedicated LCD driver chip, such as the GC9A01, which simplifies hardware design and reduces the need for external components.
Backlight control: LED backlighting allows the user to adjust brightness based on ambient lighting conditions to optimize visibility and power consumption.
Touch function (optional): Some models may also integrate a capacitive or resistive touch screen, increasing the possibility of user interaction.
Application areas
Such screens are widely used in a variety of 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 machines4
Development considerations
Power management: Given 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 a product with good documentation and technical support. Sample code, library functions, and development boards provided by the manufacturer 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, texts, 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, Tamreor provides a 1PCS 1.28-inch circular color TFT display with high resolution and clear display effect, suitable for a variety of application scenarios. Other suppliers provide a 1.28-inch circular LCD display module with GC9A01 driver, which not only has a 240x240 resolution, but also has 65K RGB colors, ensuring that the display content is both clear and colorful.
In summary, the 1.28-inch 240x240 resolution circular LCD screen has become an ideal display solution for many small devices due to its compact design, high resolution and good color performance. When choosing a specific screen, be sure to consult the detailed specifications and technical documents provided by the manufacturer to ensure that the selected screen meets your project needs.
