Patent ID: 7334901

Claim:
A rear projection display apparatus for displaying images comprising: a projection screen; a plurality of micro projectors arranged in a two dimensional array, each to project a respective sub-image onto the projection screen with the sub-images being tiled together to form a larger image, each micro projector having: an LED light source; light collimation optics disposed to collimate light from the LED light source; a light sensor coupled to the array controller and disposed to sense light from the LED light source; a micro-display device disposed to be illuminated by light from the light collimation optics; and projection optics disposed to project an image from the micro-display to the projection screen as a respective sub-image; an array controller coupled to receive image data and to provide respective sub-image data to each micro projector corrected to achieve brightness and color uniformity responsive to an output of the sensor, and scaled for seamless tiling of the sub-images to form the rear projection image.