TOUCH POINT POSITIONING DETECTION CIRCUIT, OPTICAL TOUCH PANEL AND DISPLAY DEVICE
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United States of America Patent
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Issued Date -
Dec 10, 2015
app pub date -
Dec 18, 2013
filing date -
Aug 1, 2013
priority date (Note) -
Abandoned
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Abstract
The present disclosure relates to a touch display technique field. There is disclosed a touch point positioning detection circuit, an optical touch panel and a display device, which are used for improving the touch accuracy of the touch panel. The touch point positioning detection circuit comprises: an optical touch sub-circuit for sensing a touch and generating a touch signal, an amplification sub-circuit connected to the optical touch sub-circuit for amplifying the touch signal, an output sub-circuit connected to the amplification sub-circuit for outputting the touch signal, and a detection sub-circuit connected to the output sub-circuit for determining a position of a touch point according to the outputted touch signal.
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