Rapid image rendering on dual-modulator displays
First Claim
1. A method for determining an effective luminance pattern representing a distribution of light on a display layer of a display, the method comprising:
- for a plurality of light sources arranged to emit light to illuminate the display layer;
obtaining a plurality of effective luminance patterns corresponding to a corresponding plurality of point spread function components, obtaining the plurality of effective luminance patterns comprising at least;
obtaining a first effective luminance pattern by summing first point spread function components for the plurality of light sources, the first point spread function components having a first support radius; and
a second effective luminance pattern by summing second point spread function components for the plurality of light sources, the second point spread function components having a second support radius different from the first support radius; and
obtaining a total effective luminance pattern by combining the plurality of effective luminance patterns.
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Accused Products
Abstract
Apparatus and methods are provided that employ one or more of a variety of techniques for reducing the time required to display high resolution images on a high dynamic range display having a light source layer and a display layer. In one technique, the image resolution is reduced, an effective luminance pattern is determined for the reduced resolution image, and the resolution of the effective luminance pattern is then increased to the resolution of the display layer. In another technique, the light source layer'"'"'s point spread function is decomposed into a plurality of components, and an effective luminance pattern is determined for each component. The effective luminance patterns are then combined to produce a total effective luminance pattern. Additional image display time reduction techniques are provided.
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Citations
22 Claims
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1. A method for determining an effective luminance pattern representing a distribution of light on a display layer of a display, the method comprising:
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for a plurality of light sources arranged to emit light to illuminate the display layer; obtaining a plurality of effective luminance patterns corresponding to a corresponding plurality of point spread function components, obtaining the plurality of effective luminance patterns comprising at least; obtaining a first effective luminance pattern by summing first point spread function components for the plurality of light sources, the first point spread function components having a first support radius; and a second effective luminance pattern by summing second point spread function components for the plurality of light sources, the second point spread function components having a second support radius different from the first support radius; and obtaining a total effective luminance pattern by combining the plurality of effective luminance patterns. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14)
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15. Apparatus for controlling a display, the apparatus comprising a controller configured to:
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for a plurality of light sources arranged to emit light to illuminate a display layer; determine driving values for the light sources from image data; obtain a plurality of effective luminance patterns corresponding to a corresponding plurality of point spread function components for the light sources wherein obtaining the plurality of effective luminance patterns comprises at least; obtaining a first effective luminance pattern by summing first point spread function components for the plurality of light sources, the first point spread function components having a first support radius; and obtaining a second effective luminance pattern by summing second point spread function components for the plurality of light sources, the second point spread function components having a second support radius different from the first support radius; and obtain a total effective luminance pattern by combining the plurality of effective luminance patterns. - View Dependent Claims (16, 17, 18, 19, 20, 21, 22)
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Specification