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CAPACITIVE TOUCH PANEL WITH HEIGHT DETERMINATION FUNCTION

  • US 20140009428A1
  • Filed: 07/03/2012
  • Published: 01/09/2014
  • Est. Priority Date: 07/03/2012
  • Status: Active Grant
First Claim
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1. A capacitive touch sensor, comprising:

  • a sensor substrate;

    an array of electrode elements formed over the sensor substrate, each electrode element of the array including at least one ofa first electrode group comprising at least two drive electrodes and at least one sense electrode, ora second electrode group comprising at least two sense electrodes and at least one drive electrode,wherein the respective electrodes of the first or second electrode group are arranged to form multiple capacitances over different coupling distances; and

    a controller operatively coupled to the array of electrode elements, the controller configured to determine a distance of an object relative to the surface of the touch sensor based on variations in the multiple capacitances.

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