The LED display Screen is assembled from the pixel module. The computer uses a computer to control the input pulse current to the lead-out line of a single pixel module, so that the brightness of the light-emitting diode changes; changing the duty cycle, so that the brightness appears a gray level, you can make a Pixels change colorfully. A large number of such pixel combinations become pictures, and play various texts and images like televisions and monitors. Many LED display product series, according to the use of the environment is divided into indoor and outdoor displays, according to the size of the pixels are divided into φ3, φ3.75, φ5, φ8, φ15, φ19, φ26, etc., according to the color of the pixels For monochrome, red and green dual-color, red, green and blue primary colors (full color), etc., according to the display control method is divided into communication screen, video display, but also classified according to the use of features, such as the screen, dot matrix screen, dot matrix Digital hybrid screen, road traffic variable information board and so on. The LED display screens of different types and performances differ greatly in terms of material composition, manufacturing process, and control technology. The technical connotation differs significantly. Even if the products of the same type and performance are used, the technologies used by different manufacturers are also very different. different.

In general, the technical scope of LED display screens includes semiconductor optoelectronic device technology, electronic circuit technology, integrated circuit technology, information image processing and transmission technology, computer network technology, and technology related to electronic product manufacturing and electronic product installation engineering. It should be said that while China’s LED display industry is developing at a scale, product technology has been introduced to new levels and it has maintained a relatively advanced level. In the early 1990s, it had mature 16-level grayscale, 256-color video control technology and wireless remote control and other international advanced level technologies. In recent years, it has been in full-color LED display, 256 grayscale video control technology, cluster wireless control, multi-level Group control technology and other aspects have advanced in the domestic and international standards of technology and products; LED display Screen control for large-scale integrated circuits has also been developed and produced by domestic companies and applications.