Backlight, liquid crystal apparatus comprising such a backlight, and method of operating such an apparatus
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United States of America Patent
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Issued Date -
Dec 16, 2004
app pub date -
Mar 15, 2004
filing date -
Mar 18, 2003
priority date (Note) -
Abandoned
status (Latency Note)
Importance
Abstract
A structure that may be used as a backlight for a liquid crystal display includes a light source and an optical waveguide. The optical waveguide is illuminated by the light source from an edge of the optical waveguide. The optical waveguide has a plurality of adjacent areas for illuminating corresponding parts of a liquid crystal panel. Each of the areas is provided with an independently controllable light source for illuminating the area.
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