SELF-CAPACITIVE TOUCH PANEL
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United States of America Patent
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Issued Date -
Oct 2, 2014
app pub date -
Apr 2, 2014
filing date -
Apr 2, 2013
priority date (Note) -
Abandoned
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Abstract
A self-capacitive touch panel including two sensing regions is provided. Each of the sensing regions includes a first sensing channel, a second sensing channel, a border electrode and multiple central electrodes. The border electrode utilizes the first sensing channel exclusively. The central electrodes share the second sensing channel. The border electrode has a first centroid, which represents a position where a capacitance change contributed by the border electrode occurs. The central electrodes have a second centroid, which represents a position where a capacitance change contributed by the central electrode occurs. An average distance from the first centroid to all possible touch points in the border electrodes is shorter than an average distance from the second centroid to all possible touch points in the central electrodes.
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