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TOUCH SENSOR WITH ENHANCED AND SMALL-SCALE SENSITIVITY AND METHOD FOR MAKING SAME

  • US 20200133413A1
  • Filed: 01/18/2019
  • Published: 04/30/2020
  • Est. Priority Date: 10/25/2018
  • Status: Active Grant
First Claim
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1. A touch sensor, comprising:

  • a substrate;

    a piezoelectric layer located on the substrate;

    a first electrode layer located between the substrate and the piezoelectric layer;

    a second electrode layer located on a side of the piezoelectric layer away from the substrate; and

    a touch layer located on a side of the second electrode layer away from the piezoelectric layer, wherein the touch layer being made of a flexible and deformable material, comprising a base layer covering the second electrode layer and a plurality of protrusions protruding from a surface of the base layer away from the piezoelectric layer, and the base layer and the plurality of protrusions are integrally formed.

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