Patent ID: 8400479

Claim:
A color display apparatus comprising, first, second, and third primary color light sources to respectively generate original primary color lights; and a switching unit to control an operation state of each of the first, second, and third primary color light sources to emit the respective original primary color lights, wherein each of the first, second, and third primary color light sources is alternately switched to an operation state by the switching unit to emit a respective original primary color light for a same fixed time period, and while one of the first, second, and third primary color light sources is switched to the operation state by the switching unit to emit the respective original primary color light for the same fixed time period, at least one of the other first, second, and third primary color light sources is switched to the operation state by the switching unit to emit at least another respective original primary color light for only a part of the same fixed time period so that at least two of the original primary color lights are mixed to produce one target primary color of a plurality of target primary colors.