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Liquid crystal display device

  • US 9,235,090 B2
  • Filed: 03/24/2014
  • Issued: 01/12/2016
  • Est. Priority Date: 12/05/2005
  • Status: Active Grant
First Claim
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1. A liquid crystal display device comprising:

  • a semiconductor layer;

    a gate electrode overlapping with the semiconductor layer;

    an electrode electrically connected to the semiconductor layer, wherein the electrode is one of a source electrode and a drain electrode;

    a pixel electrode electrically connected to the electrode;

    a common wiring;

    a conductive layer over and electrically connected to the common wiring;

    a common electrode over and electrically connected to the conductive layer; and

    a liquid crystal layer over the pixel electrode and the common electrode,wherein the electrode comprises a first material,wherein the conductive layer comprises a second material which is the same as the first material,wherein the pixel electrode comprises a material selected from the group consisting of indium tin oxide, indium zinc oxide, indium tin oxide containing silicon oxide, and zinc oxide, andwherein the common electrode comprises a material selected from the group consisting of indium tin oxide, indium zinc oxide, indium tin oxide containing silicon oxide, and zinc oxide.

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