Image Construction Based Video Display System
First Claim
1. A video system comprised of:
- a video display having an array of M×
N coarse pixels in which each coarse pixel is comprised of a set of primary color light sources for color operation, or a white light source for gray-scale operation, wherein the intensity of each light source is controllable;
a spatial light modulator aligned with the array of M×
N coarse pixels first video display to generate spatial masking patterns for blocking or passing light, the spatial masking patterns having a resolution finer than the coarse pixel sizes by a factor of p;
an image processor coupled to receive video information to be displayed, to control the spatial light modulator to generate the spatial masking patterns and to generate image components to provide driving information for the light source or light sources in each of the M×
N coarse pixels corresponding to the spatial masking patterns generated by the spatial light modulator;
whereby the resultant video system can display images at a resolution up to p times finer than the M×
N coarse pixels.
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Abstract
A video display system based on constructing images through displaying orthogonal basis function components of the image is disclosed. The system is comprised of two display components aligned and driven concurrently. The first display component is a coarse pixel array. The second display component is a spatial light modulator whose geometric details are finer than the first pixel array. The overall system reconstructs the intended video to be displayed at the finer geometric details of the second display component at a minimal image quality loss through the use of time-domain display of orthogonal image basis function components. The resultant system has a considerably reduced interconnection complexity and number of active circuit elements, and also requires a considerably smaller video data rate if a lossy image reconstruction scheme is used. An embodiment with a LED based display and an LCD based spatial light modulator utilizing the concepts, and methods to drive the displays are described herein.
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Citations
39 Claims
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1. A video system comprised of:
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a video display having an array of M×
N coarse pixels in which each coarse pixel is comprised of a set of primary color light sources for color operation, or a white light source for gray-scale operation, wherein the intensity of each light source is controllable;a spatial light modulator aligned with the array of M×
N coarse pixels first video display to generate spatial masking patterns for blocking or passing light, the spatial masking patterns having a resolution finer than the coarse pixel sizes by a factor of p;an image processor coupled to receive video information to be displayed, to control the spatial light modulator to generate the spatial masking patterns and to generate image components to provide driving information for the light source or light sources in each of the M×
N coarse pixels corresponding to the spatial masking patterns generated by the spatial light modulator;whereby the resultant video system can display images at a resolution up to p times finer than the M×
N coarse pixels. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20)
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21. A method of displaying a video image comprising:
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separating a video image into an array of M×
N coarse pixels in which each coarse pixel is comprised of a set of primary color light sources for color operation, or a white light source for gray-scale operation;providing a spatial light modulator aligned with the array of M×
N coarse pixels first video display to generate spatial masking patterns for blocking or passing light, the spatial masking patterns having a resolution finer than the coarse pixel sizes by a factor of p;controlling the spatial light modulator to generate the spatial masking patterns and to generate image components to provide driving information for the light source or light sources in each of the M×
N coarse pixels corresponding to the spatial masking patterns generated by the spatial light modulator;whereby the resultant video images are displayed at a resolution up to p times finer than the M×
N coarse pixels. - View Dependent Claims (22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36, 37, 38, 39)
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Specification