Touch sensor, touch detection device and detection method, and touch control apparatus
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United States of America Patent
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Jul 7, 2020
Grant Date -
Dec 21, 2017
app pub date -
Sep 5, 2017
filing date -
Jun 16, 2016
priority date (Note) -
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Abstract
A touch sensor, a touch detection device and a detection method, and a touch control apparatus are provided. The touch sensor comprises a first electrode layer, a rigid insulating layer, a second electrode layer, a compressible layer, and a third electrode layer disposed successively The compressible layer may change the distance between the second electrode layer and the third electrode layer when subjected to a touch pressure. The second electrode layer and the third electrode layer may form a capacitor structure, and the capacitance value of the capacitor structure may vary with the distance between the second electrode layer and the third electrode layer. The pressure information of a user's touch operation can be calculated from the change of the capacitance value.
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