Patent ID: 7782280
Filing Date: 2010-08-24
Classification: G02F,G09G

Abstract:
1. A display apparatus for displaying a sequence of frames having a frame repetition rate, comprising: a spatial light modulator; a light source for shining light on said spatial light modulator; and a rotatable mounted color wheel positioned in an optical path from said light source to said spatial light modulator, said color wheel comprising at least one red region, at least one green region, at least one blue region, and at least one light-attenuating region, wherein said at least one light-attenuating region reduces the intensity of the light reaching said spatial light modulator, wherein said color wheel is rotated faster than the frame repetition, rate, wherein the spatial light modulator is a digital micromirror device (DMD) having a plurality of micromirrors that are movable between ON and OFF positions, all of the micromirrors of the DMD being simultaneously moved to their OFF positions at least once during each frame as the sequence of frames is displayed.