Color display system with spatial light modulator(s) having color-to color variations for split reset
First Claim
1. A method of reducing artifacts in an image display system having multiple memory-multiplexed spatial light modulators (SLMs), each SLM displaying images based on pixel data representing a different color with the images being combined at an image plane, comprising the steps of:
- corresponding each row of each said SLM with one row of each other said SLM, wherein said rows from each said SLMs have a same position on that SLM, thereby identifying corresponding rows;
connecting the rows of each said SLM in reset groups, such that each reset group is comprised of a number of rows of each said SLM, and such that corresponding SLM rows are not in the same reset group;
loading a first reset group with data having a certain bit-weight of said pixel data;
displaying said data loaded to said first reset group; and
repeating said loading step and said displaying step for each reset group and for each bit-weight of said pixel data, alternating among said reset groups.
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Abstract
A method of reducing artifacts in SLM-based display systems (10, 20), whose images are based on data displayed by bit-weight for pulse-width modulated intensity levels. The method can be used with a multiple spatial light modulators SLM system (20), which concurrently displays images of different colors, or with a single SLM system (10), which generates differently colored images sequentially during each frame period. For a multiple SLM system (20), the method is used with SLMs (14) that are memory-multiplexed, having "reset groups" that are loaded and displayed at different times. Corresponding rows of the SLM(s)s are associated with different reset groups.
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Citations
14 Claims
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1. A method of reducing artifacts in an image display system having multiple memory-multiplexed spatial light modulators (SLMs), each SLM displaying images based on pixel data representing a different color with the images being combined at an image plane, comprising the steps of:
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corresponding each row of each said SLM with one row of each other said SLM, wherein said rows from each said SLMs have a same position on that SLM, thereby identifying corresponding rows; connecting the rows of each said SLM in reset groups, such that each reset group is comprised of a number of rows of each said SLM, and such that corresponding SLM rows are not in the same reset group; loading a first reset group with data having a certain bit-weight of said pixel data; displaying said data loaded to said first reset group; and repeating said loading step and said displaying step for each reset group and for each bit-weight of said pixel data, alternating among said reset groups. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8)
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9. A method of reducing artifacts in an image display system having a memory-multiplexed spatial light modulator (SLM), sequentially which displays images based on pixel data representing a different color via a color wheel:
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assigning the rows of said SLM to reset groups, such that each reset group is comprised of a number of rows of said SLM; loading a first reset group with data having a certain bit-weight of said pixel data; displaying said data loaded to said first reset group; repeating said loading step and said displaying step for each reset group and for each bit-weight of said pixel data of a first color, alternating among said reset groups; and repeating said assigning, loading and displaying steps for said pixel data of a second color, such that said reset groups contain different rows of said SLM than those used for said first color. - View Dependent Claims (10, 11, 12, 13, 14)
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Specification