Conversion of a sub-pixel format data to another sub-pixel data format
First Claim
1. A color display for receiving source image data representing color images and for displaying color images corresponding to the source image data, the display comprising:
- a plurality of substantially identical pixel units tiled across a face of the displaywhere each pixel unit includes a first plurality of independently drivable first subpixel display elements that can emit light of a first wavelength,where each pixel unit includes a second plurality of independently drivable second subpixel display elements that can emit light of a second wavelength,where each pixel unit includes an independently drivable third subpixel display element that can emit light of a third wavelength,said third wavelength being shorter than the second wavelength and said second wavelength being shorter than the first wavelength;
wherein said first, second and third subpixel display elements are spatially distributed within their respective display pixel units according to a spatial distribution pattern different from an implied spatial distribution of implied first, second, and third color sensing elements that implicitly sampled an implied source image, where the implied samplings of the first, second, and third color sensing elements were implicitly used to generate said source image data,wherein for respective first, second, and third color sensing arrays defined by respective ones of said first, second, and third color sensing elements there are implied image source sampling areas,wherein for respective first, second, and third color display arrays defined by respective ones of said first, second, and third subpixel display elements there are implied image output resampling areas; and
where said display further comprises;
a respective sample-areas to resample-areas contributions mapper provided for each of the first, second, and third color display arrays, where the respective mapper of each respective one of said color display arrays maps luminance contributions from hypothetically overlying ones of the implied image source sampling areas to hypothetically underlying ones of the implied image output resampling areas for the respective one color display array and thereby defines luminance signals that are generated and used to drive the independently drivable first, second, and third subpixel display elements of the display.
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Abstract
A method of determining implied sample areas for each data point of each color in a source pixel data specified in a first sub-pixel format is used for sub-pixel rendering an image on a display specified in a second sub-pixel format. Each of the first and second sub-pixel formats comprises a plurality of colored sub-pixels. The method comprises determining a geometric center of each colored sub-pixel of the first format to define a sampling point; and defining each implied sample area by forming lines that are substantially equidistant between the sampling point of one colored sub-pixel and the sampling point of another neighboring same color colored sub-pixel. A similar technique may be used for determining resample areas for computing color values for rendering an image specified in a first sub-pixel format on a display substantially comprising a plurality of colored sub-pixels arranged in a second sub-pixel format.
243 Citations
11 Claims
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1. A color display for receiving source image data representing color images and for displaying color images corresponding to the source image data, the display comprising:
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a plurality of substantially identical pixel units tiled across a face of the display where each pixel unit includes a first plurality of independently drivable first subpixel display elements that can emit light of a first wavelength, where each pixel unit includes a second plurality of independently drivable second subpixel display elements that can emit light of a second wavelength, where each pixel unit includes an independently drivable third subpixel display element that can emit light of a third wavelength, said third wavelength being shorter than the second wavelength and said second wavelength being shorter than the first wavelength; wherein said first, second and third subpixel display elements are spatially distributed within their respective display pixel units according to a spatial distribution pattern different from an implied spatial distribution of implied first, second, and third color sensing elements that implicitly sampled an implied source image, where the implied samplings of the first, second, and third color sensing elements were implicitly used to generate said source image data, wherein for respective first, second, and third color sensing arrays defined by respective ones of said first, second, and third color sensing elements there are implied image source sampling areas, wherein for respective first, second, and third color display arrays defined by respective ones of said first, second, and third subpixel display elements there are implied image output resampling areas; and
where said display further comprises;a respective sample-areas to resample-areas contributions mapper provided for each of the first, second, and third color display arrays, where the respective mapper of each respective one of said color display arrays maps luminance contributions from hypothetically overlying ones of the implied image source sampling areas to hypothetically underlying ones of the implied image output resampling areas for the respective one color display array and thereby defines luminance signals that are generated and used to drive the independently drivable first, second, and third subpixel display elements of the display.
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2. A color display for receiving source image data representing color images and for displaying to an average human observer color images corresponding to the source image data, the display comprising:
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a plurality of substantially identical pixel units tiled across a face of the display where each pixel unit includes a first plurality of independently drivable first subpixel display elements that can emit light of a first wavelength, where each pixel unit includes a second plurality of independently drivable second subpixel display elements that can emit light of a second wavelength, where each pixel unit includes an independently drivable third subpixel display element that can emit light of a third wavelength, said third wavelength being shorter than the second wavelength and said second wavelength being shorter than the first wavelength; wherein said first and second wavelengths contribute significantly to perception of luminance by the average human observer while the third wavelength does not contribute significantly to perception of luminance by the average human observer; wherein said first, second and third subpixel display elements are spatially distributed within their respective display pixel units according to a spatial distribution pattern different from an implied spatial distribution of implied first, second, and third color sensing elements that implicitly sampled an implied source image, where the implied samplings of the first, second, and third color sensing elements were implicitly used to generate said source image data, wherein for respective first, second, and third color sensing arrays defined by respective ones of said first, second, and third color sensing elements there are implied image source sampling areas, wherein for respective first, second, and third color display arrays defined by respective ones of said first, second, and third subpixel display elements there are implied image output resampling areas; and
where said display further comprises;a respective sample-areas to resample-areas luminance contributions mapper provided for each of the first and second color display arrays that maps luminance contributions from hypothetically overlying ones of the implied image source sampling areas of the first and second wavelengths to hypothetically underlying ones of the implied image output resampling areas and thereby determines generated luminance signals that are used to drive the independently drivable first and second subpixel display elements of the display.
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3. A color display adapted to receive source image data representing color images and to display color images corresponding to the source image data, the display comprising:
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a plurality of substantially identical pixel units tiled across a face of the display where each pixel unit includes a first plurality of independently drivable first subpixel display elements that can emit light primarily of a first wavelength, where each pixel unit includes a second plurality of independently drivable second subpixel display elements that can emit light primarily of a second wavelength, where each pixel unit includes an independently drivable third subpixel display element that can emit light primarily of a third wavelength, where said third wavelength is shorter than the second wavelength and said second wavelength is shorter than the first wavelength; wherein said first, second and third subpixel display elements are spatially distributed within their respective display pixel units according to a spatial distribution pattern different from an implied spatial distribution of implied first, second, and third color sensing elements that implicitly sampled an implied source image, where the implied samplings of the first, second, and third color sensing elements were implicitly used to generate said source image data, wherein for respective first, second, and third color sensing arrays defined by respective ones of said first, second, and third color sensing elements there are implied image source sampling areas, wherein for respective first, second, and third color display arrays defined by respective ones of said first, second, and third subpixel display elements there are implied image output resampling areas; and
the display further comprisesa respective sample-areas to resample-areas contributions mapper provided at least for each of the first and second color sensing arrays respectively, where each respective mapper maps luminance contributions from hypothetically overlying ones of the implied image source sampling areas of the respective color sensing array to hypothetically overlaid ones of the implied image output resampling areas of the respective subpixel display elements and thereby determines generated luminance signals that are used to respectively drive the independently drivable first and second subpixel display elements of the display. - View Dependent Claims (4, 5, 6)
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7. A color display configured to receive source image data representing color images and to displaying to an average human observer color images corresponding to the source image data, the display comprising:
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a plurality of substantially identical pixel units tiled across a face of the display where each pixel unit includes a first plurality of independently drivable first subpixel display elements that can emit light primarily of a first wavelength, where each pixel unit includes a second plurality of independently drivable second subpixel display elements that can emit light primarily of a second wavelength, where each pixel unit includes an independently drivable third subpixel display element that can emit light primarily of a third wavelength, where said third wavelength is shorter than the second wavelength and said second wavelength is shorter than the first wavelength; wherein said first and second wavelengths contribute significantly to perception of luminance by the average human observer while the third wavelength does not contribute significantly to perception of luminance by the average human observer; wherein said first, second and third subpixel display elements are spatially distributed within their respective display pixel units according to a spatial distribution pattern different from an implied spatial distribution of implied first, second, and third color sensing elements that implicitly sampled an implied source image, where the implied samplings of the first, second, and third color sensing elements were implicitly used to generate said source image data, wherein for respective first, second, and third color sensing arrays defined by respective ones of said first, second, and third color sensing elements there are implied image source sampling areas, wherein for respective first, second, and third color display arrays defined by respective ones of said first, second, and third subpixel display elements there are implied image output resampling areas; and a respective sample-areas to resample-areas contributions mapper provided for each of the first, second and third color sensing arrays respectively, where each respective mapper maps luminance contributions from hypothetically overlying ones of the implied image source sampling areas of the respective color sensing array to hypothetically overlaid ones of the implied image output resampling areas of the respective subpixel display elements and thereby determines generated luminance signals that are used to respectively drive the independently drivable first, second and third subpixel display elements of the display. - View Dependent Claims (8)
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9. A color display configured to receive source image data representing color images and to displaying to an average human observer color images corresponding to the source image data, the display comprising:
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a plurality of substantially identical pixel units tiled across a face of the display where each pixel unit includes a first plurality of independently drivable first subpixel display elements that can emit light primarily of a first wavelength, where each pixel unit includes a second plurality of independently drivable second subpixel display elements that can emit light primarily of a second wavelength, where each pixel unit includes an independently drivable third subpixel display element that can emit light primarily of a third wavelength, where said third wavelength is shorter than the second wavelength and said second wavelength is shorter than the first wavelength; wherein said first and second wavelengths contribute significantly to high resolution perception of imagery by the average human observer while the third wavelength does not contribute as significantly to perception of high resolution perception of imagery by the average human observer; wherein said first, second and third subpixel display elements are spatially distributed within their respective display pixel units such that along a hypothetical line drawn through the first subpixel display elements of neighboring display pixel units and also through the third subpixel display elements of the same neighboring display pixel units, the third subpixel display elements repeat less often spatially relative to the spatial frequency of the first subpixel display elements. - View Dependent Claims (10, 11)
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Specification