Patent ID: 7172297
Filing Date: 2007-02-06
Classification: G02F,G03B,G09G,H04N

Abstract:
1. A method for displaying a resulting image to a viewer at a viewing position, the method comprising: providing first and second spatial light modulators in an optical path between a light source and the viewing position, each of the first and second spatial light modulators comprising a plurality of controllable pixels, wherein for each pixel of one of the first and second spatial light modulators, the other one of the first and second spatial light modulators has more than one corresponding pixel; processing image data that defines a desired image comprising desired luminance values for image areas in the desired image; in response to the image data, setting the pixels of the first spatial light modulator to project a pattern of light onto the second spatial light modulator wherein the pattern of light approximates the desired image; computing intensities of the pattern of light at the pixels of the second spatial light modulator; and, based on the computed intensities, setting the pixels of the second spatial light modulator to reduce a difference between the pattern of light and the desired image.