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Layered border for touch sensor device

  • US 8,692,812 B2
  • Filed: 03/12/2012
  • Issued: 04/08/2014
  • Est. Priority Date: 03/12/2012
  • Status: Active Grant
First Claim
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1. A surface acoustic wave touch device comprising:

  • a touch substrate having a front surface and a back surface, the front surface facing a user of the device;

    a multi-layered material stack on a border region of the touch substrate, the multi-layered material stack formed on the back surface, the multi-layered material stack comprising a light reflective layer and a color layer; and

    a transducer configured to generate surface acoustic waves that propagate on the front surface over at least a portion of the border region such that the surface acoustic waves propagate on the multi-layered material stack.

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