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Display device and manufacturing method thereof

  • US 8,749,061 B2
  • Filed: 05/23/2013
  • Issued: 06/10/2014
  • Est. Priority Date: 09/20/2002
  • Status: Expired due to Term
First Claim
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1. A display device comprising a protective circuit, the protective circuit comprising:

  • a first wiring;

    an insulating film over the first wiring;

    a second wiring over the insulating film; and

    a semiconductor film under the insulating film,wherein the first wiring is electrically connected to the semiconductor film through a first opening of the insulating film,wherein the second wiring is electrically connected to the semiconductor film through a second opening of the insulating film,wherein the first wiring overlaps with the second wiring,wherein the second wiring comprises a first layer comprising titanium and a second layer comprising copper,wherein the second layer is over and in contact with the first layer, andwherein a width of the second layer is narrower than a width of the first layer.

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