2.4-inch 240x320 resolution rectangular LCD module with 4:3 aspect ratio and support for MCU, SPI, RGB and MIPI interfaces, using TN or IPS display technology, is a small display module designed for devices that require clear display and good visibility. This type of module integrates LCD panel, driver integrated circuit, FPC (flexible printed circuit) and backlight unit, making it ideal for handheld devices, portable electronics and embedded systems.
Technical Specifications
Screen size: 2.4 inches, diagonal length, suitable for small to medium-sized application scenarios.
Resolution: 240x320 pixels (QVGA), providing clear and delicate text and image display, especially suitable for menu navigation, icons and graphic content in a small range.
Aspect ratio: 4:3, traditional square ratio, suitable for many standard application interfaces.
Interface type: Supports multiple interface types:
MCU interface: parallel interface directly connected to microcontroller.
SPI (Serial Peripheral Interface): synchronous serial communication protocol that allows efficient data transmission with peripheral devices.
RGB interface: used to directly control the red, green and blue primary color signals, providing more direct color management.
MIPI DSI (Mobile Industry Processor Interface Display Serial Interface): a high-speed serial interface widely used in mobile devices such as smartphones and tablets.
Display technology: you can choose TN (Twisted Nematic) or IPS (In-Plane Switching), where:
TN panel: usually lower cost, fast response, but narrow viewing angle, color reproduction ability is average.
IPS panel: provides wider viewing angle and better color accuracy, but power consumption may be slightly higher and cost is also higher.
Color depth: most support 16-bit or 24-bit color depth, can provide 65K or 16M colors, and achieve rich color performance.
Built-in driver chip: equipped with a dedicated LCD driver chip, such as ILI9341 or ST7789, simplifies hardware design and reduces the need for external components.
Backlight control: with LED backlight, users can adjust the brightness according to ambient lighting conditions to optimize visibility and power consumption.
Module Features
Wide viewing angle: Modules with IPS technology, in particular, provide a wide viewing angle of nearly 180 degrees, maintaining a clear and color-accurate display from any angle.
Touch function (optional): Some modules may also integrate capacitive or resistive touch screens, increasing the possibility of user interaction.
Compact design: Suitable for embedded systems and other applications with limited space.
Application areas
Such modules are 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
GPS devices
Game consoles
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 the main control board has enough pins to connect the selected interface, and pay attention to the impact of signal line length on signal integrity.
Actual case
For example, Waveshare provides a 2.4-inch 240x320 resolution TFT LCD module, which uses ILI9341 driver IC, supports 16-bit color depth, and has SPI and MCU interfaces, suitable for a variety of application scenarios.
In addition, Adafruit's 2.4-inch TFT LCD module has a resolution of 320x240, uses ILI9341 driver IC, supports SPI interface, and has a capacitive touch screen, which is very suitable for applications requiring high resolution and wide viewing angle.
In addition, there are suppliers that provide 2.4-inch 240x320 resolution TFT LCD modules that support MIPI interface, which are particularly suitable for applications with high performance and low latency requirements.
