Patents by Inventor Akitsuna Takagi

Akitsuna Takagi 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).

  • Publication number: 20140339531
    Abstract: The display device including a pixel circuit has a first line, a transistor, a light emitting element, and a second line. The transistor is located between the second line and an electrode of the light emitting element. Either the first line or the second line is wired in a region that overlaps a light emitting region of the light emitting element in a lamination direction of layers. The second line intersects the first line outside of the light emitting region and overlaps a non-light emitting region of the light emitting element.
    Type: Application
    Filed: July 31, 2014
    Publication date: November 20, 2014
    Applicant: SONY CORPORATION
    Inventors: Yukihito Iida, Akitsuna Takagi, Katsuhide Uchino
  • Patent number: 8836617
    Abstract: The display device including a pixel circuit has a first line, a transistor, a light emitting element, and a second line. The transistor is located between the second line and an electrode of the light emitting element. Either the first line or the second line is wired in a region that overlaps a light emitting region of the light emitting element in a lamination direction of layers. The second line intersects the first line outside of the light emitting region and overlaps a non-light emitting region of the light emitting element.
    Type: Grant
    Filed: March 22, 2012
    Date of Patent: September 16, 2014
    Assignee: Sony Corporation
    Inventors: Yukihito Iida, Akitsuna Takagi, Katsuhide Uchino
  • Patent number: 8773016
    Abstract: A display apparatus, includes: a substrate; a plural light emitting elements provided on the substrate and each formed from a lower electrode, a light emitting function layer and an upper layer stacked in this order; a partition for element isolation provided on the substrate and having a plural apertures individually corresponding to the light emitting elements; and a black matrix disposed on the light extraction side of the light emitting elements and having a shape with which the black matrix covers over portions. Each of the apertures of the partition having a side wall is formed in such a tapering shape that the aperture width increases toward the light extraction side of the light emitting elements. The black matrix is provided in such a manner as to cover over an upper edge portion of the tapering shape on at least one side which defines each aperture of the partition.
    Type: Grant
    Filed: June 4, 2012
    Date of Patent: July 8, 2014
    Assignee: Sony Corporation
    Inventors: Akitsuna Takagi, Jiro Yamada, Toshihiro Fukuda
  • Patent number: 8760372
    Abstract: The display device including a pixel circuit has a first line, a transistor, a light emitting element, and a second line. The transistor is located between the second line and an electrode of the light emitting element. Either the first line or the second line is wired in a region that overlaps a light emitting region of the light emitting element in a lamination direction of layers. The second line intersects the first line outside of the light emitting region and overlaps a non-light emitting region of the light emitting element.
    Type: Grant
    Filed: November 1, 2012
    Date of Patent: June 24, 2014
    Assignee: Sony Corporation
    Inventors: Yukihito Iida, Akitsuna Takagi, Katsuhide Uchino
  • Publication number: 20120243221
    Abstract: A display apparatus, includes: a substrate; a plural light emitting elements provided on the substrate and each formed from a lower electrode, a light emitting function layer and an upper layer stacked in this order; a partition for element isolation provided on the substrate and having a plural apertures individually corresponding to the light emitting elements; and a black matrix disposed on the light extraction side of the light emitting elements and having a shape with which the black matrix covers over portions. Each of the apertures of the partition having a side wall is formed in such a tapering shape that the aperture width increases toward the light extraction side of the light emitting elements. The black matrix is provided in such a manner as to cover over an upper edge portion of the tapering shape on at least one side which defines each aperture of the partition.
    Type: Application
    Filed: June 4, 2012
    Publication date: September 27, 2012
    Applicant: SONY CORPORATION
    Inventors: Akitsuna Takagi, Jiro Yamada, Toshihiro Fukuda
  • Publication number: 20120176297
    Abstract: The display device including a pixel circuit has a first line, a transistor, a light emitting element, and a second line. The transistor is located between the second line and an electrode of the light emitting element. Either the first line or the second line is wired in a region that overlaps a light emitting region of the light emitting element in a lamination direction of layers. The second line intersects the first line outside of the light emitting region and overlaps a non-light emitting region of the light emitting element.
    Type: Application
    Filed: March 22, 2012
    Publication date: July 12, 2012
    Applicant: Sony Corporation
    Inventors: Yukihito Iida, Akitsuna Takagi, Katsuhide Uchino
  • Patent number: 8198805
    Abstract: A display apparatus, includes: a substrate; a plural light emitting elements provided on the substrate and each formed from a lower electrode, a light emitting function layer and an upper layer stacked in this order; a partition for element isolation provided on the substrate and having a plural apertures individually corresponding to the light emitting elements; and a black matrix disposed on the light extraction side of the light emitting elements and having a shape with which the black matrix covers over portions. Each of the apertures of the partition having a side wall is formed in such a tapering shape that the aperture width increases toward the light extraction side of the light emitting elements. The black matrix is provided in such a manner as to cover over an upper edge portion of the tapering shape on at least one side which defines each aperture of the partition.
    Type: Grant
    Filed: February 28, 2008
    Date of Patent: June 12, 2012
    Assignee: Sony Corporation
    Inventors: Akitsuna Takagi, Jiro Yamada, Toshihiro Fukuda
  • Patent number: 8188941
    Abstract: There is provided a pixel circuit, including: a signal line; a drive transistor; a light emitting element; and at least one power source line wired so as to intersect perpendicularly the signal line; wherein the drive transistor is connected between the wiring layer and a predetermined electrode of the light emitting element, and any one of wirings intersecting perpendicularly one another is wired in a region of overlapping a light emitting region of the light emitting element in a direction of lamination of layers.
    Type: Grant
    Filed: November 1, 2007
    Date of Patent: May 29, 2012
    Assignee: Sony Corporation
    Inventors: Yukihito Iida, Akitsuna Takagi, Katsuhide Uchino
  • Patent number: 7781956
    Abstract: A display apparatus includes: a substrate; and a plurality of light emitting elements arrayed on the substrate and each formed from a lower electrode, a light emitting function layer and an upper electrode stacked in this order on the substrate. A rib for element isolation is provided on the substrate and has a plurality of openings individually corresponding to the light emitting elements. Each of the openings of the rib being formed such that at least one of sides which define a shape in plan is formed only from a curved line or extends in a non-parallel relationship to that of another one of the openings.
    Type: Grant
    Filed: March 13, 2008
    Date of Patent: August 24, 2010
    Assignee: Sony Corporation
    Inventors: Akitsuna Takagi, Jiro Yamada, Tomotaka Nishikawa
  • Publication number: 20080224963
    Abstract: A display apparatus, includes: a substrate; a plural light emitting elements provided on the substrate and each formed from a lower electrode, a light emitting function layer and an upper layer stacked in this order; a partition for element isolation provided on the substrate and having a plural apertures individually corresponding to the light emitting elements; and a black matrix disposed on the light extraction side of the light emitting elements and having a shape with which the black matrix covers over portions. Each of the apertures of the partition having a side wall is formed in such a tapering shape that the aperture width increases toward the light extraction side of the light emitting elements. The black matrix is provided in such a manner as to cover over an upper edge portion of the tapering shape on at least one side which defines each aperture of the partition.
    Type: Application
    Filed: February 28, 2008
    Publication date: September 18, 2008
    Applicant: SONY CORPORATION
    Inventors: Akitsuna Takagi, Jiro Yamada, Toshihiro Fukuda
  • Publication number: 20080224594
    Abstract: A display apparatus includes: a substrate; and a plurality of light emitting elements arrayed on the substrate and each formed from a lower electrode, a light emitting function layer and an upper electrode stacked in this order on the substrate. A rib for element isolation is provided on the substrate and has a plurality of openings individually corresponding to the light emitting elements. Each of the openings of the rib being formed such that at least one of sides which define a shape in plan is formed only from a curved line or extends in a non-parallel relationship to that of another one of the openings.
    Type: Application
    Filed: March 13, 2008
    Publication date: September 18, 2008
    Applicant: SONY CORPORATION
    Inventors: Akitsuna Takagi, Jiro Yamada, Tomotaka Nishikawa
  • Publication number: 20080150437
    Abstract: There is provided a pixel circuit, including: a signal line; a drive transistor; a light emitting element; and at least one power source line wired so as to intersect perpendicularly the signal line; wherein the drive transistor is connected between the wiring layer and a predetermined electrode of the light emitting element, and any one of wirings intersecting perpendicularly one another is wired in a region of overlapping a light emitting region of the light emitting element in a direction of lamination of layers.
    Type: Application
    Filed: November 1, 2007
    Publication date: June 26, 2008
    Applicant: Sony Corporation
    Inventors: Yukihito Iida, Akitsuna Takagi, Katsuhide Uchino