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US 11,378,840 B2Granted
Image display
AssigneeDolby Laboratories Licensing Corporation
InventorsLorne A. Whitehead, Gregory John Ward, Wolfgang Stuerzlinger, Helge Seetzen, Don Graham
Life of this patent
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Abstract
A display has a screen which incorporates a light modulator. The screen may be a front projection screen or a rear-projection screen. The screen is illuminated with light from a light source comprising an array of controllable light-emitters. The controllable-emitters and elements of the light modulator may be controlled to adjust the intensity of light emanating from corresponding areas on the screen. The display may provide a high dynamic range.
Claims19
A display comprising:
- a light source comprising a plurality of light-emitting elements;
- a spatial light modulator illuminated by the light source;
- and
- a grid of reflective-walled channels disposed between the light source and the spatial light modulator;
- wherein light from the light source passes through the channels to illuminate the spatial light modulator.
2 more elements
Dependencies are inferred from the claim text.