Patents by Inventor Shirou Sumita

Shirou Sumita has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Patent number: 9865843
    Abstract: A display device is disclosed including a plurality of pixels arranged above a substrate, and a sealing film arranged above the substrate so as to cover the plurality of pixels, wherein the sealing film includes a stacked first inorganic film, second inorganic film and third inorganic film, a first organic film arranged between the first inorganic film and the second organic film, and a second organic film arranged between the second inorganic film and the third inorganic film, and wherein the first organic film is divided into a plurality of regions by a first partition wall, and the second organic film is divided into a plurality of regions by a second partition wall.
    Type: Grant
    Filed: December 8, 2016
    Date of Patent: January 9, 2018
    Assignee: Japan Display Inc.
    Inventor: Shirou Sumita
  • Publication number: 20170271619
    Abstract: A display device is disclosed including a plurality of pixels arranged above a substrate, and a sealing film arranged above the substrate so as to cover the plurality of pixels, wherein the sealing film includes a stacked first inorganic film, second inorganic film and third inorganic film, a first organic film arranged between the first inorganic film and the second organic film, and a second organic film arranged between the second inorganic film and the third inorganic film, and wherein the first organic film is divided into a plurality of regions by a first partition wall, and the second organic film is divided into a plurality of regions by a second partition wall.
    Type: Application
    Filed: December 8, 2016
    Publication date: September 21, 2017
    Inventor: Shirou Sumita
  • Patent number: 7629740
    Abstract: A display device includes a substrate having, on a major surface thereof, a display area including a plurality of pixels for displaying an image, and a stacked layer body that is formed by stacking a first thin film, which is disposed to cover the display area, a second thin film, which partly covers the first thin film, and a third thin film, which covers the second thin film and is formed with a larger pattern than the first thin film. The third thin film contacts a peripheral part of the first thin film and covers the first thin film.
    Type: Grant
    Filed: April 26, 2005
    Date of Patent: December 8, 2009
    Assignee: Toshiba Matsushita Display Technology Co., Ltd.
    Inventors: Hiroshi Sano, Shirou Sumita, Tatsuo Yoshioka
  • Patent number: 7612498
    Abstract: An array substrate includes an almost rectangular effective portion which is formed on the major surface of the substrate and includes a plurality of pixels for displaying images. An organic EL display device includes a sealer which is placed to cover at least the effective portion on the major surface of the array substrate. The sealer has a structure in which at least two almost rectangular buffer layers which have substantially the same pattern and barrier layers each of which is a pattern larger than each buffer layer and covers each buffer layer to shield it from the open air are stacked on each other. The shortest distance from one side of an end of the effective portion to one side of an end of the first buffer layer is different from the shortest distance to one side of an end of the second buffer layer.
    Type: Grant
    Filed: November 24, 2004
    Date of Patent: November 3, 2009
    Assignee: Toshiba Matsushita Display Technology Co., Ltd.
    Inventors: Hiroshi Sano, Shirou Sumita, Tatsuo Yoshioka
  • Publication number: 20050242720
    Abstract: A display device includes a substrate having, on a major surface thereof, a display area including a plurality of pixels for displaying an image, and a stacked layer body that is formed by stacking a first thin film, which is disposed to cover the display area, a second thin film, which partly covers the first thin film, and a third thin film, which covers the second thin film and is formed with a larger pattern than the first thin film. The third thin film contacts a peripheral part of the first thin film and covers the first thin film.
    Type: Application
    Filed: April 26, 2005
    Publication date: November 3, 2005
    Inventors: Hiroshi Sano, Shirou Sumita, Tatsuo Yoshioka
  • Publication number: 20050156513
    Abstract: An array substrate includes an almost rectangular effective portion which is formed on the major surface of the substrate and includes a plurality of pixels for displaying images. An organic EL display device includes a sealer which is placed to cover at least the effective portion on the major surface of the array substrate. The sealer has a structure in which at least two almost rectangular buffer layers which have substantially the same pattern and barrier layers each of which is a pattern larger than each buffer layer and covers each buffer layer to shield it from the open air are stacked on each other. The shortest distance from one side of an end of the effective portion to one side of an end of the first buffer layer is different from the shortest distance to one side of an end of the second buffer layer.
    Type: Application
    Filed: November 24, 2004
    Publication date: July 21, 2005
    Inventors: Hiroshi Sano, Shirou Sumita, Tatsuo Yoshioka