Optical position detecting device and display device with position detecting function
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United States of America Patent
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Sep 22, 2015
Grant Date -
Apr 28, 2011
app pub date -
Sep 20, 2010
filing date -
Oct 26, 2009
priority date (Note) -
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status (Latency Note)
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Abstract
An optical position detecting apparatus that detects a position of a target object in a detection region, includes: a light source device for position detection that emits position detection light to the detection region and forms an intensity distribution of the position detection light in the detection region; plural photodetectors that direct incident angle ranges to regions not overlapping one another in the detection region; and a position detecting device that detects the position of the target object on the basis of results of detection by the photodetectors of the position detection light reflected on the target object.
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