全彩色LED显示屏的色度计算

A CHROME CALCULATION OF THE LED SUPER SCALE COLOR SCREEN

全彩色 Ｌ Ｅ Ｄ 显示屏可以用来显示电视画面。目前没有专门用于 Ｌ Ｅ Ｄ 彩色大屏幕的图像源及其标准，所以都是将送给 Ｃ Ｒ Ｔ 显像管的图形信号源送到 Ｌ Ｅ Ｄ 彩色大屏幕进行显示。针对把送给 Ｃ Ｒ Ｔ 的信号送到 Ｌ Ｅ Ｄ 屏进行显示会引起彩色失真这种情况，本文给出 Ｌ Ｅ Ｄ 大屏幕系统的色度计算公式，为准确控制 Ｌ Ｅ Ｄ 管的发光亮度提供理论依据，并给出应用实例。

LED super scale color screen can be used to show TV programs.At present there is no source of images and standard used specially for LED super scale color screen,so the signal shown by LED color screen is what is sent to CRT.There exist great color distortion when we directly send the signal which is used to drive CRT to LED color screen.In view of the situation,this paper gives the formulas of chrome calculation for LED color screen,provides the theoretical basis so as to control the brightness of LED precisely,and brings out a practical example.