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Touch panel and display device using the same

  • US 8,237,672 B2
  • Filed: 09/29/2008
  • Issued: 08/07/2012
  • Est. Priority Date: 12/14/2007
  • Status: Active Grant
First Claim
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1. A touch panel comprising:

  • a substrate comprising a surface;

    a plurality of transparent conductive layers disposed on the surface of the substrate and spaced apart from each other, at least one of the plurality of transparent conductive layers comprising a carbon nanotube layer;

    at least one capacitive sensing circuit; and

    a plurality of conductive wires respectively electrically connecting the plurality of transparent conductive layers to the at least one capacitive sensing circuit, the at least one capacitive sensing circuit measuring capacitive changes of the plurality of transparent conductive layers,wherein the carbon nanotube layer comprises at least one carbon nanotube film, the at least one carbon nanotube film comprises a plurality of carbon nanotubes, and a majority of the plurality of carbon nanotubes of the carbon nanotube film are aligned along a same direction.

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