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Touch panel having a speaker function

  • US 20070046642A1
  • Filed: 05/19/2006
  • Published: 03/01/2007
  • Est. Priority Date: 08/30/2005
  • Status: Active Grant
First Claim
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1. A touch panel comprising:

  • a first supporting substrate;

    a second supporting substrate that faces the first supporting substrate;

    a first transparent electrode formed on the first supporting substrate;

    a second transparent electrode formed on the second supporting substrate;

    a third transparent electrode formed between the first and second transparent electrodes;

    a medium layer formed between the first and third transparent electrodes; and

    a piezoelectric layer formed between the second and third transparent electrodes.

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