The grayscale of the full-color LED display is what we usually call the color scale or grayscale, which refers to the degree of brightness. Grayscale is the determinant of the number of displayed colors. Generally speaking, the higher the grayscale, the richer the displayed colors and the finer the picture; the brightness discrimination level of the LED display refers to the image that the human eye can distinguish from the darkest to the whitest. between brightness levels.
The gray level of the LED full-color display mainly depends on the number of A/D conversion bits of the system. Of course, the video processing chip, memory and transmission system of the system must provide the support of the corresponding number of digits. At present, the domestic LED display mainly adopts an 8-bit processing system, that is, 256 (28) levels of gray. A simple understanding is that there are 256 brightness changes from black to white. Using RGB three primary colors can form 256×256×256=16777216 colors. That is commonly referred to as 16 trillion colors. The international brand display screen mainly adopts a 10-bit processing system, that is, 1024 gray levels, and the three primary colors of RGB can form 1.07 billion colors.