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FORCE-TOUCH SENSOR WITH MULTILAYERED ELECTRODES

  • US 20170228065A1
  • Filed: 01/26/2017
  • Published: 08/10/2017
  • Est. Priority Date: 02/05/2016
  • Status: Active Grant
First Claim
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1. A force-touch sensor with multilayered electrodes, the force-touch sensor comprising:

  • an upper substrate having a first face and a second face opposite to the first face;

    a first electrode layer arranged on one face of the upper substrate, the first electrode layer having a plurality of first sensing electrodes;

    a second electrode layer arranged opposite to the first electrode layer, and farther away from the upper substrate than the first electrode layer, the second electrode layer having a plurality of second sensing electrodes, each second sensing electrode being corresponding to each of the first sensing electrodes and electrically connected with one corresponding first sensing electrode to form a plurality of touch sensing electrodes;

    a plurality of touch electrode traces, each touch electrode trace electrically connected with one corresponding touch sensing electrode and electrically isolated with other touch sensing electrodes;

    a resilient dielectric layer arranged on a side of the second electrode layer, the side being opposite to the upper substrate, the resilient dielectric layer being compressively deformed under pressure and restoring to original shape and volume if pressure is not present; and

    a third electrode layer arranged on a side of the resilient dielectric layer, the side being opposite to the upper substrate, the third electrode layer having at least one force sensing electrode.

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