OPERATIONAL AMPLIFIER AND TOUCH SENSING APPARATUS INCLUDING THE SAME
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United States of America Patent
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Issued Date -
Aug 28, 2014
app pub date -
Dec 19, 2013
filing date -
Feb 25, 2013
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Abstract
A touch sensing apparatus is provided. The touch sensing apparatus includes a touch panel and a touch sensor configured to control the touch panel and sense a touch through the touch panel. The touch sensor includes a plurality of sensing units connected to the touch panel through a plurality of sensing lines respectively. Each of the plurality of sensing units includes at least an operational amplifier whose polarity varies in response to a clock signal.
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