Patent ID: 7605832
Filing Date: 2009-10-20
Classification: G09G,H04N

Abstract:
1. A method for reducing distortion in images provided by a display system employing an array of individual pixel elements in a Spatial Light Modulator comprising the steps of: providing a set of pixel values corresponding to pixels of an image to be displayed wherein the number of pixel values comprising said set is greater than the number of available SLM elements; adjusting at least some of said pixel values to provide a set of adjusted pixel values; generating at least a first set of pixels and a second set of pixels from said set of adjusted pixel values; transmitting light from a relay optics portion onto micromirror elements containing adjusted first and second pixel group sets; reflecting said transmitted light containing said adjusted first and second pixel sets off an optical element at varying angles to provide spacing between said pixel group set when projected onto a display screen; displaying said image on said display screen as a matrix of pixels comprising said first set of pixels and said second set of pixels, wherein the number of pixels of said matrix is greater than the number of said SLM elements, and wherein at least one of the pixels of said first set overlaps at least one of the pixels of said second set; wherein said adjusting step is carried out by adjusting pixel values of said set of pixel values to compensate for image distortion due to overlapping pixels of said matrix; wherein said adjusting step includes a step of scaling a first respective pixel value of said set of pixel values in accordance with a first scaling factor β, summing values of pixels overlapping said first respective pixel values and scaling the sum by a second scaling factor, α, and subsequent to said scaling step, subtracting said first respective pixel value from said summed pixel values to determine an adjusted value of said first respective pixel value.