What are the components of LED display screen

Nowadays, LED display screen can be seen everywhere and has a wide range of applications. We often see colorful dynamic commercial advertising images on the street, which is the effect of display screen application. It brings us a fast and convenient information age, and also adds beautiful colors to the urban environmental decoration. As a new media, LED screen is the use of moving light-emitting graphics, display a large amount of information, content can be updated at any time, and has a very good advertising and notice effect, so it is easier to attract people’s attention. So what components are the LED display screen composed of?

Today, Shijue Guangxu will give you a brief introduction: the LED display screen mainly consists of the following components: LED unit board, wiring, power supply, control card. The first component: LED unit board, which is one of the core components of LED display, the quality of unit board directly affects the display effect. The unit board is composed of LED module, driver chip and PCB. LED module, in fact, is made of many LED light-emitting points with resin or plastic packaging lattice. The second component: wiring, which can be divided into data line, transmission line and power line. The data line is used to connect the control card and the LED unit board. The transmission line is used to connect the control card and the computer. The power cord is used to connect the power supply, control card and LED unit board. The copper core diameter of the power cord connecting the unit board is not less than 1 mm. The third component: power supply, the general use of power supply is switching power supply, 220 V input, 5 V DC output. It should be pointed out that because LED display screen belongs to precision electronic equipment, switching power supply should be used instead of transformer. The fourth component: control card we recommend the use of low-cost strip screen control card, which can control 1 / 16 scan 256×16 dot dual color screen, and can assemble the most cost-effective LED screen. The control card belongs to asynchronous card, that is to say, the card can save information without power failure, and can display the information stored in it without connecting to PC.