LIGHT GUIDE PANEL INCLUDING DIFFRACTION GRATINGS
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United States of America Patent
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Issued Date -
Jun 2, 2016
app pub date -
Jul 19, 2013
filing date -
Jul 19, 2013
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Abstract
An example provides an apparatus including a light guide panel with a plurality of diffraction gratings to cause light to propagate within the light guide panel by total internal reflection and scatter light in response to a presence of an object adjacent to the light guide panel.
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