Chromaticity coordinate of led

Coordinate: . It means “absolute position of a certain point in a plane coordinate system. zero points to be the origin. then you want to j positioning a specific location within the plane coordinate system. which indicates that the method: A（X，Y)；
led chromaticity coordinate: precisely. color chromaticity coordinate designates the color chromaticity coordinate in chromaticity diagram. sensitive color of retina has RGB(red,green,blue), from the three colors red, blue and green, all other color sensations can be made .mixed in varying proportions, they can produce all colors. that mix process is reflected in this chromaticity coordinate.