Method and system for accentuating intense white display areas in sequential DMD video systems
First Claim
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1. A method for accentuating intense white display areas in a sequential DMD video system comprising the steps of:
- generating a special signal that indicates a boost white intensity; and
during the presence of said special signal, enabling a DMD mirror to be in the on position during times when a source of light for the DMD mirror traverses a color boundary of a color wheel.
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Abstract
A method and system for accentuating intense white display areas in sequential DMD video systems includes generating a special signal for each pixel that indicates whether to boost the intensity of that pixel in all colors. The method further includes enabling the mirrors to be turned on during times of color boundary of the color wheel such that DMD with mirrors receives different mixes of color light that are integrated together to produce intense white. The system may include degamma lookup tables for each color. The degamma lookup tables are augmented when the special signal is generated.
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Citations
17 Claims
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1. A method for accentuating intense white display areas in a sequential DMD video system comprising the steps of:
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generating a special signal that indicates a boost white intensity; and during the presence of said special signal, enabling a DMD mirror to be in the on position during times when a source of light for the DMD mirror traverses a color boundary of a color wheel.
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2. A method for accentuating intense white display areas in a sequential DMD video system comprising the steps of:
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generating a special signal for each pixel that indicates a boost white intensity of said pixel in all colors; and during the presence of said special signal, enabling DMD mirrors of said DMD system to be turned on during the times a source of light traverses a color boundary of a color wheel such that said DMD mirrors receive different mixes of color light that are integrated together to produce the intense white. - View Dependent Claims (3, 4, 5, 6)
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7. A system for accentuating intense white display areas in sequential DMD video system including a plurality of mirrors illuminated from a light source through a color wheel comprising:
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a generator coupled to incoming color video signals for generating a special signal representing intensity above a given threshold; and a mirror controller coupled to mirrors of said DMD video system and responsive to said special signal for enabling said mirrors to be turned on during traverses of color boundaries of said color wheel. - View Dependent Claims (8, 9)
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10. A system for accentuating intense white displays in split reset DMD video system including a plurality of DMD mirrors illuminated from a light source through a color wheel and wherein at color wheel boundaries stepped groups of pixels are sequentially turned off and in like order said stepped groups of pixels are sequentially turned on comprising, in combination:
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a source of at least three color video signals; a generator coupled to said color video signals for generating a special signal representing an intensity of all of said video signals above a given threshold; and a mirror controller coupled to said DMD mirrors and responsive to said special signal for enabling said DMD mirrors to remain turned on during said color wheel boundaries. - View Dependent Claims (11)
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12. A system for accentuating intense white displays in split reset DMD video system including a plurality of DMD mirrors illuminated from a light source through a color wheel and wherein at an absolute color wheel boundary time period all of said pixels are turned off and at first transition time period before said absolute color wheel boundary said pixels are sequentially turned off in groups before said absolute color boundary and at a second transition time period following said absolute color boundary in like order said stepped groups of pixels are sequentially turned on comprising, in combination:
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a source of at least three color video signals; a generator coupled to said color video signals for generating a special signal representing an intensity above a given threshold; and a mirror controller coupled to said DMD mirrors and responsive to said special signal for enabling said DMD mirrors to be turned on during said absolute color boundaries and during said first and second transition time periods. - View Dependent Claims (13)
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14. A method for accentuating intense white displays in split reset DMD video system including a plurality of DMD mirrors illuminated from a light source through a color wheel and wherein at an absolute color wheel boundary time period all of said pixels are turned off and at first transition time period before said absolute color wheel boundary said pixels are sequentially turned off in groups before said absolute color boundary and at a second transition time period following said absolute color boundary in the same order said stepped groups of pixels are turned on comprising the steps of:
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providing a source of at least three color video signals; generating a special signal representing an intensity above a given threshold when all of said color video signals have about equal intensity above a given threshold; and enabling said DMD mirrors to be turned on during said absolute color boundaries and during said first and second transition time periods in response to said special signal. - View Dependent Claims (15)
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16. A method for accentuating intense white displays in split reset DMD video system including a plurality of DMD mirrors illuminated from a light source through a color wheel and wherein at color wheel boundaries stepped groups of pixels are sequentially turned off and in like order said stepped groups of pixels are turned on comprising the steps of:
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providing a source of at least three color video signals; generating a special signal representing an intensity of all of said video signals above a given threshold; and enabling said DMD mirrors to remain turned on during said color wheel boundaries when said special signal is generated. - View Dependent Claims (17)
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Specification