2.4-inch 240x320 resolution rectangular LCD panel with 4:3 aspect ratio is a small display designed for devices that require clear display and good visibility. Panels of this size and resolution are well suited for handheld devices, portable electronics, and embedded systems. Here are the technical features and specifications of this LCD panel:
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 small-scale graphic content.
Aspect Ratio: 4:3, traditional square ratio, suitable for many standard application interfaces.
Interface Type: Supports multiple interface types, including:
MCU Interface: Parallel interface for direct connection to microcontrollers.
SPI (Serial Peripheral Interface): Synchronous serial communication protocol that allows efficient data transfer 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: Can be TN (Twisted Nematic) or IPS (In-Plane Switching), where:
TN panels: Generally lower cost and faster response, but narrower viewing angles and average color reproduction.
IPS panels: Provide wider viewing angles and better color accuracy, but may consume slightly more power and cost more.
Color Depth: Most support 16-bit or 24-bit color depth, capable of 65K or 16M colors for rich color performance.
Panel Features
Built-in driver chip: Most of these panels are equipped with a dedicated LCD driver chip, such as ILI9341 or ST7789, which 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.
Touch Function (Optional): Some models may also integrate capacitive or resistive touch screens, increasing the possibility of user interaction.
Application Areas
This type of panel 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
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 that 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 Cases
For example, Waveshare provides a 2.4-inch 240x320 resolution TFT LCD display, which uses the ILI9341 driver IC, supports 16-bit color depth, has SPI and MCU interfaces, and is suitable for a variety of application scenarios.
In addition, there are similar products provided by other suppliers, such as Adafruit's 2.4-inch TFT LCD display with a resolution of 320x240, using the ILI9341 driver IC, supporting the SPI interface, and a capacitive touch screen.
