The LED display is an important electronic device widely used on various occasions. Its composition, functional modules, and working principle are of great significance for understanding its performance and application.
1. The composition of the LED display
LED (Light Emitting Diode) is a semiconductor device that converts electrical energy into light energy through electroluminescence technology. The LED display is composed of many pixels, and each pixel contains an LED light and a driver chip. Different types of LED displays can be assembled according to needs to form display screens of different sizes, resolutions, color depths, and brightness.
2. Functional modules of the LED display
Control module: The control module is one of the most basic parts of the LED display. It receives an input signal from the outside world and converts it into the current and voltage required for pixel brightness and color.
Driver module: The driver module is an important part of the LED display, which controls the brightness and color of each pixel. Typically, each pixel is connected to a driver chip. The driver chip receives the data transmitted from the control module to control the brightness and color of the LED.
Display Module: The display module consists of many pixels, and each pixel contains an LED light and a driver chip. The main task of the display module is to convert the input signal into a visualized image.
Power Module: The LED display needs a stable DC power supply to work properly, so the power module is a must. It is responsible for providing the required electrical energy and ensuring safe and reliable output voltage and current.
3. Control System
The LED control system is divided into synchronous and asynchronous two. The synchronous control system and the content of the computer screen are displayed synchronously, which needs to be updated in real-time and connected to the computer all the time. The asynchronous control system stores the display data in the system in advance, without being affected by the computer, and can be controlled in various ways.
4. working principle
The working principle of LED display is based on LED technology. When current passes through an LED, it is energized and emits light. The color of an LED depends on its semiconductor material. In the LED display, the control module receives input signals from external devices and converts them into the current and voltage required for the brightness and color of the pixels. The driving module receives the data transmitted from the control module to control the brightness and color of each pixel. The display module is composed of many pixels, which can present various complex visual information.
In short, understanding the composition, functional modules, and working principles of LED display screens is of great significance for understanding its performance and application. With the continuous advancement of technology, LED display screens are becoming an increasingly common display device.
Post time: May-20-2023