Patent ID: 8542408
Filing Date: 2013-09-24
Classification: G03B,G09G,H04N

Abstract:
1. A method for producing an image from image data for an image to be displayed, comprising: directing a beam of light onto an illumination light valve comprising a first array of individually addressable pixel elements; modulating the beam of light by the first pixel element array using the image data; directing the modulated beam from the first pixel element array to form a blurred defocused image on an imaging light valve comprising a second array of individually addressable pixel elements; modulating light of the blurred image by the second pixel element array using the image data; and projecting the modulated light of the blurred defocused image from the second pixel element array onto a screen; whereby pixel elements of the illumination light valve provide illumination light for modulation by the imaging light valve having intensity variations, with highest and lowest intensities of the illumination light directed in general spatial correspondence onto pixel elements of the imaging light valve that image highest and lowest luminance parts of a scene of the image to be displayed.