Patent ID: 8366275

Claim:
Image display apparatus comprising projector means, a light source, at least one primary modulator for modulating light, an auxiliary modulator for modulating the light modulated by the primary modulator, optical means for relaying the light modulated by the primary modulator to the auxiliary modulator, control means for controlling the primary modulator and the auxiliary modulator, and projector means for projecting light modulated by the auxiliary modulator, characterized in that: the primary modulator comprises a first array of pixels, and the auxiliary modulator comprises a second array of pixels; each pixel in the first array of pixels of the primary modulator is controlled by the control means as a function of video input data for each pixel in the first array of pixels; and each pixel in the second array of pixels of the auxiliary modulator is controlled by the control means as a function of video input data for each equivalent pixel in the second array of pixels, and each adjacent pixel in the second array of pixels.