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US 2011/0216387 A1Published application
Edge lit locally dimmed display
AssigneeDolby Laboratories Licensing Corporation
InventorsLorne Whitehead, Greg Ward, Wolfgang Stuerzlinger, Helge Seetzen
Life of this patent
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Abstract
An edge lit locally dimmed display has a spatial light modulator illuminated by a light source. The light source is positioned at an edge and behind the spatial light modulator. The spatial light modulator is illuminated with a low resolution version of a desired image. The illumination may comprise a series of lighting elements that vary smoothly from one element to another at the spatial light modulator.
Claims35
An edge lit locally dimmed display, comprising:
- a spatial light modulator;
- a light source configured to cause an illumination of the spatial light modulator;
- wherein:
- the light source is at an edge and behind a viewing side of the spatial light modulator;
- and
- the illumination comprises a low resolution version of a desired image.
3 more elements
A locally dimmed display method, comprising the steps of:
- energizing a lighting device;
- redirecting light from the energized lighting device onto a spatial light modulator;
- and
- modulating the reflected light to produce a desired image;
- wherein:
- the redirected light comprises a low resolution version of a the desired image;
- and
- the lighting device is located at an edge and behind the spatial light modulator.
5 more elements
Dependencies are inferred from the claim text.