We use 256 grey scales which realized in sum way and use color exchange space . each point dynamic color repairing technology fits for full color of led display which is made by using simple green tube or olivine tube . this technology can make the color of led display menu keep the original photo floweriness 1用算法实现的256级灰度，设计中使用了颜色变换空间， “逐点动态色彩补偿技术”适合使用纯绿管或黄绿管制作的全彩色led显示屏，该技术使led显示画面的色彩能够保持原图象的绚丽。
