LED electronic display screen has accumulated a variety of color processing technologies from the initial monochrome display screen, two-color display screen, three-primary color display screen to today's multi-primary color display screen, and has become one of the core technologies of LED display screen. 1. Deployment of white field color coordinates. White field color coordinate deployment is one of the basic technologies of full-color LED electronic display screens. Many LED electronic display screen manufacturers have begun to standardize the color matching process of full-color screens. However, there are still some manufacturers that often allocate 100-field color coordinates at the expense of the gray level of some primary colors, thus improving the comprehensive performance. 2. The choice of primary color wavelength. LED electronic display screen has been widely used in various fields with its own characteristics. The primary color wavelength of LED required by different fields is also different. How to choose the primary color wavelength of LED to obtain better visual effect depends on the usage and occasion. 3. Color restoration. The birth of pure blue and pure green LED makes the full-color LED electronic display screen sought after by the industry for its wide color gamut range and high brightness. When expressing human skin color, there are obvious deviations in vision, thus, color restoration technology came into being. The so-called static screen in LED advertising screen design is related to dynamic screen (Scan screen)Is corresponding. Static screen means that when the display screen is displayed, all the light points are on at the same time. However, the scanning screen uses the visual persistence characteristic of human eyes to illuminate each row of the LED electronic display screen in a very short period of time. The LED electronic display screen is driven by duty cycle, so the brightness of the display has a great relationship with the lighting time period. In the case of the same brightness of the luminous tube, the brightness of the static screen is higher than that of the dynamic screen, so the general outdoor screen uses a static screen and the indoor screen uses a dynamic screen to save the driving cost.