Display apparatus and position detecting method
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United States of America Patent
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Jun 18, 2013
Grant Date -
Aug 2, 2012
app pub date -
Apr 6, 2012
filing date -
Mar 10, 2008
priority date (Note) -
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status (Latency Note)
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Abstract
An image generating unit of a display apparatus generates a determination image based on first and second light reception images obtained from light reception cells in a light-emission period and in a non-light-emission period, respectively. An image determining unit determines whether or not an image of an object to be detected is included in the determination image, stores data corresponding to the determination image as initial data into a storage when the object image is not included in the determination image, and stores the data corresponding to the determination image as detection data into the storage when the object image is included in the determination image. A position determining unit determines at least an object position based on an image represented by the detection data in the storage and an image represented by the initial data in the storage.
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