Led display chroma-led display screen
XYZ stimulate value on the definition of a color is very useful, but the result is not easily comprehension. Therefore, in 1931, the CIE in the two-dimensional definition of the direction of an independent brightness in color space, and this is Yxy color space.
In Yxy color space, the Y delegate brightness, x and y from the XYZ tristimulus values calculated by the color value.
Calculation of the formula of led display chroma are as follows:
X=X/(X+Y+Z) Y=X/(X+Y+Z)
1931 system's weaknesses are the same distance on the charts, dose not mean that the same poor color perception do not, because the human eye perception is nonlinear