Brightness-enhancing film
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United States of America Patent
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Oct 5, 2010
Grant Date -
Jul 16, 2009
app pub date -
Jan 14, 2009
filing date -
Jul 14, 2006
priority date (Note) -
In Force
status (Latency Note)
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Abstract
The present embodiments provide systems, backlights, films, apparatuses and methods of generating back lighting. Some embodiments provide backlights that include a cavity with at least one interior light source and diffusely reflecting wall of high reflectivity, a top surface with multiple intermittently spaced holes allowing exit of light generated by the light sources, and external collimators extending from each of the holes such that the external collimators spatially expand and angularly narrow the light exiting the holes.
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