Light input for directional backlight
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United States of America Patent
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Aug 22, 2017
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app pub date -
Oct 13, 2014
filing date -
Oct 14, 2013
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Abstract
A directional backlight may include a light guiding apparatus including at least one transparent optical waveguide for providing large area collimated illumination from localized light sources. The waveguide is arranged in a first part and a second part with a light injection aperture between the respective parts. Such controlled illumination may provide for efficient, multi-user autostereoscopic displays as well as improved 2D display functionality including high brightness displays and high display efficiency.
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