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Display device and manufacturing method of the same

  • US 8,344,379 B2
  • Filed: 09/24/2009
  • Issued: 01/01/2013
  • Est. Priority Date: 11/17/2005
  • Status: Active Grant
First Claim
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1. A display device comprising:

  • a semiconductor film;

    a gate wire;

    a gate insulating film interposed between the semiconductor film and the gate wire; and

    a source or drain wire electrically connected to the semiconductor film,wherein the gate wire comprises;

    a first conductive film;

    a second conductive film over the first conductive film so that a width of the second conductive film is smaller than a width of the first conductive film; and

    a third conductive film over the first conductive film so as to cover a top surface and a side surface of the second conductive film, andwherein the source or drain wire comprises;

    a fourth conductive film;

    a fifth conductive film over the fourth conductive film so that a width of the fifth conductive film is smaller than a width of the fourth conductive film; and

    a sixth conductive film over the fourth conductive film so as to cover a top surface and a side surface of the fifth conductive film.

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