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Liquid crystal display device and semiconductor device

  • US 10,001,678 B2
  • Filed: 07/14/2017
  • Issued: 06/19/2018
  • Est. Priority Date: 05/16/2006
  • Status: Active Grant
First Claim
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1. A liquid crystal display device comprising:

  • a gate wiring;

    a wiring along the gate wiring, wherein the wiring comprises a material same as the gate wiring;

    a source wiring comprising a first region intersecting with the gate wiring and a second region intersecting with the wiring;

    a semiconductor layer comprising a channel formation region of a transistor;

    a first conductive layer electrically connected to the semiconductor layer, wherein the first conductive layer comprises a material same as the source wiring;

    a first electrode electrically connected to the semiconductor layer through the first conductive layer;

    a second conductive layer comprising;

    a third region over and overlapping with the first electrode; and

    a fourth region intersecting with the gate wiring and not overlapping with the source wiring in a region between the gate wiring and the wiring; and

    a liquid crystal over the first electrode and the second conductive layer,wherein the wiring is electrically connected to the second conductive layer and does not comprise a region overlapping with the first conductive layer.

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