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Conductive sheet, touch panel, display device, method for producing said conductive sheet, and non-transitory recording medium

  • US 9,642,245 B2
  • Filed: 12/31/2013
  • Issued: 05/02/2017
  • Est. Priority Date: 07/11/2011
  • Status: Active Grant
First Claim
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1. A conductive sheet comprising:

  • a substrate;

    a first conductive portion formed on one main surface of the substrate and made up from a plurality of thin metal wires that have a width being greater than or equal to 0.1 μ

    m and less than or equal to 15 μ

    m and are formed from a non-transparent material;

    a first protective layer disposed on the one main surface in covering relation to the first conductive portion;

    a second conductive portion formed on another main surface of the substrate and made up from a plurality of thin metal wires that have a width being greater than or equal to 0.1 μ

    m and less than or equal to 15 μ

    m and are formed from a non-transparent material;

    a second protective layer disposed on the other main surface in covering relation to the second conductive portion;

    a first adhesive layer disposed between the one main surface and the first protective layer; and

    a second adhesive layer disposed between the another main surface and the second protective layer,wherein at least one of a relative index of refraction of the substrate with respect to the first protective layer and a relative index of refraction of the substrate with respect to the second protective layer is 0.86 to 1.15,wherein the first conductive portion comprises a mesh pattern in which different mesh shapes are arranged randomly in plan view,wherein each of the mesh shapes is polygonal,wherein a percentage of polygons having a number of vertices, an occurrence frequency of which is highest in a histogram of the number of vertices in the mesh shapes, is 40% to 70%.

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