Anisotropic touchscreen
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United States of America Patent
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Mar 15, 2016
Grant Date -
Dec 6, 2012
app pub date -
May 22, 2012
filing date -
Jun 3, 2011
priority date (Note) -
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Abstract
A method for detecting a touch spot of the touch panel includes the following steps. The electrode pairs are scanned along the impedance direction to obtain an electrical signal curve for determining a first coordinate. A number of first driving electrodes and a number of second driving electrodes near the first coordinate are selected. The selected first driving electrodes are scanned to obtain a first sensing signal. The selected second driving electrodes are scanned to obtain a second sensing signal. A second coordinate is determined according to the first and second sensing signals. Finally, the touch spot is determined according to the first and second coordinates.
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