What is the gray scale of full-color led display?

by:Genyu     2019-11-27
Full-color led display screen is a kind of LED display screen with rich colors. By three primary colors (Red, green, blue) The display unit Board consists of 256 levels of red, green and blue gray levels, forming 16,777,216 colors, enabling the electronic screen to display dynamic images with rich colors, high saturation, high resolution and high display frequency. Full-color led display screen has clear picture, uniform color and high brightness. Using ultra-high brightness LED, it is still clearly visible from a long distance. Good effect; Using nonlinear correction technology, the image is clearer and the layering is stronger; Strong reliability: adopt distributed scanning technology and modular design technology, with higher reliability and stability; The gray scale of full-color led display screen is also called color scale or gray scale, which refers to the brightness and shade. For digital display technology, gray scale is the decisive factor in the number of displayed colors. Generally speaking, the higher the gray scale, the richer the color displayed on the display screen, the more delicate the screen, and the easier it is to show rich details. The gray level of full-color led display screen mainly depends on the/D conversion digits of the system. Of course, the video processing chip, memory and transmission system of the system must provide corresponding digit support. At present, the domestic LED display screen mainly adopts an 8-bit processing system, I . e. 256 (28)Level Gray. The simple understanding is that there are 256 brightness changes from black to white. RGB three primary colors can be used to form 256 × 256 × 256 = 16777216 colors. That is commonly referred to as 16 megabytes. International brand display screen mainly adopts 10-bit processing system, I . e. 1024 gray scale, RGB three primary colors can form 10. Three or 0. 7 billion colors. Although gray scale is the decisive factor in determining the number of colors, it does not mean that the greater the limit, the better. Because the resolution of the human eye is limited first, and the increase in the number of processing bits of the system will involve changes in various links such as video processing, storage, transmission and scanning of the system, resulting in a sharp increase in cost and a decrease in cost performance. Generally speaking, 8-bit systems can be used for civil or commercial products, and 10-bit systems can be used for broadcast products.
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