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Display device and electronic device including the display device

  • US 10,514,579 B2
  • Filed: 02/01/2016
  • Issued: 12/24/2019
  • Est. Priority Date: 07/20/2012
  • Status: Active Grant
First Claim
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1. A display device comprising:

  • a pixel portion comprising;

    a first transistor;

    a first insulating film over the first transistor;

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

    a third insulating film over the second insulating film;

    a pixel electrode over the third insulating film, the pixel electrode being electrically connected to the first transistor through the opening; and

    a first alignment film over the third insulating film and the pixel electrode; and

    a driver circuit portion comprising;

    a second transistor;

    the first insulating film over the second transistor; and

    the second insulating film over the first insulating film,wherein each of the first transistor and the second transistor comprises an oxide semiconductor layer comprising a channel formation region,wherein the first transistor further comprises an electrode in contact with the oxide semiconductor layer,wherein a part of the third insulating film is in contact with the electrode,wherein the part of the third insulating film is in the opening of the second insulating film,wherein the first insulating film comprises an inorganic insulating material,wherein the second insulating film comprises an organic insulating material,wherein the third insulating film comprises an inorganic insulating material, andwherein a part of the second insulating film is in contact with the first alignment film.

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