LED display is an electronic device composed of many light-emitting diodes, which can control the brightness and color of LED lights by controlling the current. These LED lights are usually placed on a fixed substrate, which is usually made of plastic or other insulating materials. LED displays can be used to display text, images, videos and other information, and are widely used in advertising, entertainment, information release and other fields. The working principle of the LED display is to apply a voltage between the positive and negative poles of the LED lamp through a circuit to make the LED lamp glow. Typically, red and green LED lights are connected to the positive pole, while blue LED lights are connected to the negative pole. When a forward voltage is applied to the LED light, the red LED light will glow, while the green and blue LED lights will not light. When the reverse voltage is applied to the LED light, the situation is reversed, the red LED light will not emit light, while the green and blue LED lights will light up. By changing the magnitude of the current, the brightness and color of the LED light can be controlled. One of the advantages of LED display is that it is very bright. This is because the luminous efficiency of the LED lamp is very high, and the brightness of the LED lamp can be controlled by adjusting the current. In addition, the LED display also has the advantage of low power consumption. Since the LED lights only glow when needed, they don't consume any power when the display is off. This makes the LED display very suitable for places that need to display information for a long time, such as billboards or information release screens. Another advantage is that the LED display has a very long service life. Typically, LED lights can last for hundreds of thousands of hours, and their brightness and color remain stable during their lifetime. This means that during the life of the LED display, they do not need to be replaced or repaired frequently, which reduces maintenance costs. Another advantage is that the viewing angle of the LED display is very large. This is because LED lights can emit very soft light, and the viewing angle can reach 180 degrees or more.

 This means that when viewing LED displays from different angles, their display effect will not be greatly affected. Finally, the LED display also has the advantages of energy saving and environmental protection. Since they only emit light when needed, energy consumption can be drastically reduced. Additionally, LED displays can often be made using recycled materials, reducing their environmental impact. In short, the LED display is a very good electronic device, which has the advantages of high brightness, long life, large viewing angle, energy saving and environmental protection. Due to these advantages, LED displays have been widely used in advertising, entertainment, information release and other fields, and are becoming more and more popular. The application range of LED display is very wide. They can be used to display information such as text, images, and videos, and can be used indoors or outdoors, as well as in commercial or public places. In addition, the LED display can also be customized to meet different application requirements. In terms of indoor applications, LED displays are usually used to display advertisements or information. These display screens are usually placed in shopping malls, hotels, airports and other places to provide relevant information to customers. In terms of outdoor applications, LED displays are usually used to display advertisements, game results, public information, etc. In addition, the LED display can also be used as a stage background to display the content of the performance. In terms of commercial applications, LED displays are also widely used. For example, in exhibitions, LED displays can be used to display exhibits or company introductions. In addition, LED displays can also be used to display stock prices or news content for investors or journalists to view. In short, LED display is a very practical electronic device, which has the advantages of high brightness, long life, large viewing angle, energy saving and environmental protection. Due to these advantages, LED displays have been widely used in advertising, entertainment, information release and other fields, and are becoming more and more popular. With the continuous development of technology, the application prospect of LED display will become more and more broad.