FRONTLIGHT SYSTEM WITH MULTIPLE ANGLE LIGHT-TURNING FEATURES
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United States of America Patent
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May 4, 2015
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May 4, 2015
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Abstract
This disclosure provides systems, methods and apparatus for light-guiding layers including light-turning features with multiple reflective surfaces oriented at different angles to the light-guiding layer. In one aspect, the multiple reflective surfaces may be located on each individual light-turning feature, while in another aspect, the multiple reflective surfaces may be located on separate light-turning features. The use of multiple reflective surfaces oriented at different angles can improve the efficiency and appearance of a frontlight system using such a light-guiding layer.
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