LED full color gray scale is the color level, refers to the brightness of the degree of brightness, is the number of colors to determine the factors. The higher the grayscale, the richer the picture is, the finer the picture, the more detailed the details.
Full-color LED display gray scale depends mainly on the system A / D conversion bit, the system processing bit increase will involve the system video processing, storage, transmission, scanning and other aspects of the changes. At present, the joint production of LED display mainly using the following four processing systems, also formed four different gray levels:
1. 8-bit processing system, that is, 256 (2 of the 8 power) level gray. From black to white a total of 256 kinds of brightness changes. Using RGB primary colors can constitute 256 × 256 × 256 = 16777216 kinds of colors, that is, 16 trillion color.
2. 10-bit processing system, that is, 1024 (2 10 power) level gray. From black to white a total of 1024 kinds of brightness changes.
3. 12-bit processing system, that is, 4096 (2 of the 12 power) level gray. From black to white a total of 4096 kinds of brightness changes.
4. 14-bit processing system, that is, 16384 (2 of the 14th power) level gray. From black to white a total of 16384 kinds of brightness changes.
It is recommended that the gray scale is not as high as possible because the resolution of the human eye is limited and the increase of the number of processing bits will increase the system video processing, storage, transmission and scanning, resulting in the increase of the overall cost, Cost-effective but decreased
At present, outdoor LED full color display commonly used 8-bit processing system, a small number of 10-bit processing system. As for the higher commercial or broadcast grade products using 12-bit system or even higher.