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Force Sensing X-Y Touch Sensor

  • US 20140267152A1
  • Filed: 12/05/2013
  • Published: 09/18/2014
  • Est. Priority Date: 03/12/2013
  • Status: Abandoned Application
First Claim
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1. An apparatus for determining a location of a touch thereto and a force thereof on a touch sensing surface, comprising:

  • a first plurality of electrodes arranged in a parallel orientation having a first axis, wherein each of the first plurality of electrodes comprises a self capacitance;

    a second plurality of electrodes arranged in a parallel orientation having a second axis substantially perpendicular to the first axis, the first plurality of electrodes are located over the second plurality of electrodes and form a plurality of nodes comprising overlapping intersections of the first and second plurality of electrodes, wherein each of the plurality of nodes comprises a mutual capacitance;

    a flexible electrically conductive cover over the first plurality of electrodes, wherein a face of the flexible electrically conductive cover forms the touch sensing surface; and

    a plurality of deformable spacers between the flexible electrically conductive cover and the first plurality of electrodes, wherein the plurality of deformable spacers maintains a distance between the flexible electrically conductive cover and the first plurality of electrodes.

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