要精确处理LED显示屏的色度，必然涉及到显示屏色度坐标的转换问题，但现有的许多公式不够系统、方便，文章给出了方便实用的通用计算方法和公式，由此可以方便地编写成程序，从而实现各个显示屏的色度系统之间以及它们与CIE、NTSC、PAL系统之间方便的色度转换。

For deal with the colorimetry of the display screen accurately, it is necessary to involve the problem of colorimetry transform, but the relative formulas now available are neither systemic nor convenient. This article expresses the calculation method and the formula, it is conveniently to make up the program from them, then carry out the colorimetry conversions between every colorimetry system and CIE, NTSC, PAL system.