Patent ID: 8665252

Claim:
A method of controlling red, green and blue solid-state illuminator systems to produce respective red, green and blue primary colors and at least two of yellow, cyan, magenta and white overlap colors using two or more of the red, green and blue solid-state illuminator systems to illuminate a spatial light modulator in a display system, comprising the steps of: providing a first set of duty cycles of the primary colors over a frame, wherein the display system can select one of the first set duty cycles to produce a desired color point; determining a second set of duty cycles of the primary and the at least two overlap colors over a frame corresponding to the first set of duty cycles, wherein the second set duty cycles are generated responsive to a specified desired allocation of the frame to the at least two overlap colors, such that each of the at least two overlap colors can be displayed from a dark shade to a bright shade while maintaining a constant color point.