Liquid crystal display device

  • US 10,838,264 B2
  • Filed: 10/04/2018
  • Issued: 11/17/2020
  • Est. Priority Date: 12/03/2008
  • Status: Active Grant
First Claim
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1. A liquid crystal display device comprising:

  • a transistor over a substrate, the transistor comprising;

    a gate electrode comprising a copper layer;

    an oxide semiconductor layer over the gate electrode; and

    a source electrode layer and a drain electrode layer electrically connected to the oxide semiconductor layer;

    an insulating film over the transistor, the insulating film comprising a first opening;

    a resin layer over the insulating film, the resin layer comprising a second opening;

    a first electrode layer;

    a second electrode layer over the first electrode layer; and

    a liquid crystal layer,wherein one of the first electrode layer and the second electrode layer has an opening,wherein one of the first electrode layer and the second electrode layer is in contact with one of the source electrode layer and the drain electrode layer through the first opening and the second opening, andwherein one of the first electrode layer and the second electrode layer is a pixel electrode layer which is electrically connected to the transistor, and the other of the first electrode layer and the second electrode layer is a common electrode layer.

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