Patents by Inventor Hajime Akimoto

Hajime Akimoto 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: 10353501
    Abstract: Disclosed is a display device having a first layer and a second layer over the second layer. The first layer possesses a display region including: a plurality of first sub-pixels; a plurality of second sub-pixels; a plurality of third sub-pixels; a partition wall sandwiched by two adjacent sub-pixels; and a sealing film thereover. The second layer includes: a first touch electrode overlapping with the partition wall and arranged along the partition wall; and a second touch electrode overlapping with the partition wall, arranged along the partition wall, and intersecting the first touch electrode. The first touch electrode and the second touch electrode exist in the same layer. The first touch electrode and the second touch electrode each have a plurality of openings. Among the number of the first sub-pixels, the number of the second sub-pixels, and the number of the third sub-pixels, one is different from the other two.
    Type: Grant
    Filed: July 11, 2017
    Date of Patent: July 16, 2019
    Assignee: Japan Display Inc.
    Inventors: Hajime Akimoto, Mitsuhide Miyamoto, Yuko Matsumoto, Yusuke Tada
  • Publication number: 20190115396
    Abstract: A display device in an embodiment according to the present invention includes a substrate, a plurality of wirings above the insulation surface, an interlayer insulation layer covering the plurality of wirings, a light emitting element above the interlayer insulation layer, a first inorganic insulation layer covering the light emitting element, a first detection electrode extending in a first direction above the first inorganic insulation layer, an organic insulation layer above the first inorganic insulation layer covering the first detection electrode, a second detection electrode extending in a second direction intersecting the first direction above the organic insulation layer, a second inorganic insulation layer above the organic insulation layer covering the second detection electrode, a first connection wiring electrically connecting the first detection electrode and one of the plurality of wirings, and a second connection wiring electrically connecting the second detection electrode and another one of
    Type: Application
    Filed: December 11, 2018
    Publication date: April 18, 2019
    Inventors: Kenta HIRAGA, Hajime AKIMOTO
  • Patent number: 10254868
    Abstract: To provide a display device having a pressure sensor, including a plurality of first electrodes formed discretely at positions above a display area, a plurality of dielectric layers formed discretely on each of the plurality of first electrodes, a plurality of second electrodes formed on the plurality of dielectric layers, an elastic layer formed on each of the plurality of first electrodes in an area not overlapping the plurality of dielectric layers and the plurality of second electrodes, and a third electrode formed continuously in an area over the plurality of first electrodes, the plurality of dielectric layers, the plurality of second electrodes, and the plurality of elastic layers, wherein the third electrode is spaced apart from the dielectric layer and the second electrode, and the elastic layer is in contact with the first electrode and the third electrode.
    Type: Grant
    Filed: October 26, 2017
    Date of Patent: April 9, 2019
    Assignee: Japan Display Inc.
    Inventors: Yuki Hamada, Hajime Akimoto
  • Publication number: 20190074339
    Abstract: A display device according to an embodiment of the present invention includes: a first substrate; light emitting elements arranged on the first substrate and including electrodes; a first insulation layer covering an edge of each of the electrodes on the first substrate; a second insulating section arranged on the light emitting elements and overlapping with the light emitting elements in plan view; a third insulating section arranged the banks, overlapping with the banks in plan view and having a lower refractive index than a refractive index of the second insulating section.
    Type: Application
    Filed: August 29, 2018
    Publication date: March 7, 2019
    Applicant: Japan Display Inc.
    Inventors: Chunche Ma, Hajime Akimoto
  • Publication number: 20190051675
    Abstract: A display device includes a flexible substrate, a plurality of TFTs, a first electrode arranged between a channel of one of the plurality of TFTs and the flexible substrate, at least one inorganic insulating film arranged between one of the plurality of TFTs and the first electrode, a second electrode arranged on the opposite side to the side where one of the plurality of TFTs is arranged with respect to the first electrode, and an organic insulating film arranged between the first electrode and the second electrode.
    Type: Application
    Filed: July 6, 2018
    Publication date: February 14, 2019
    Inventors: Chunche MA, Hajime AKIMOTO
  • Publication number: 20190050078
    Abstract: A display device comprising: a display region including a first pixel and a second pixel arranged apart from each other, and a third pixel, and a touch sensor includes a first sensor electrode and a second sensor electrode, wherein the touch sensor overlaps the display region, the first sensor electrode has an opening part in a region overlapping the first pixel and the second pixel, and surrounding the first pixel and the second pixel, and the second sensor electrode overlapping the third pixel.
    Type: Application
    Filed: July 25, 2018
    Publication date: February 14, 2019
    Inventors: Yuki Hamada, Hajime Akimoto
  • Publication number: 20190027540
    Abstract: A sealing member containing conductive particles and disposed in a seal region is formed between a display panel and a touch panel. A laminated structure formed on the display panel includes a first detection lines. The first detection lines extend from the seal region to a connection region and are connected through the conductive particles to terminals of second detection lines formed on the touch panel. A peripheral edge of the organic barrier is located inward from the conductive particles of the sealing member. The above described structure can facilitate a work for connecting external lines such as FPC to the display panel and the touch panel. Further, the structure can secure stability of electrical connection between the external lines and the touch panel.
    Type: Application
    Filed: September 24, 2018
    Publication date: January 24, 2019
    Applicant: Japan Display Inc.
    Inventors: Mitsuhide MIYAMOTO, Hajime AKIMOTO
  • Patent number: 10186558
    Abstract: A display device in an embodiment according to the present invention includes a substrate, a plurality of wirings above the insulation surface, an interlayer insulation layer covering the plurality of wirings, a light emitting element above the interlayer insulation layer, a first inorganic insulation layer covering the light emitting element, a first detection electrode extending in a first direction above the first inorganic insulation layer, an organic insulation layer above the first inorganic insulation layer covering the first detection electrode, a second detection electrode extending in a second direction intersecting the first direction above the organic insulation layer, a second inorganic insulation layer above the organic insulation layer covering the second detection electrode, a first connection wiring electrically connecting the first detection electrode and one of the plurality of wirings, and a second connection wiring electrically connecting the second detection electrode and another one of
    Type: Grant
    Filed: August 21, 2017
    Date of Patent: January 22, 2019
    Assignee: Japan Display Inc.
    Inventors: Kenta Hiraga, Hajime Akimoto
  • Patent number: 10186197
    Abstract: In the first signal writing period which is a portion of one horizontal scan period, a first pixel signal is input to the first signal line. The first pixel signal is input from the first signal line to a first pixel circuit throughout a first signal converging period which is longer than the first signal writing period. A second pixel signal is input to the second signal line in a second signal writing period which is another portion of the one horizontal scan period. The second pixel signal is input from the second signal line to a second pixel circuit throughout a second signal converging period which is longer than the second signal writing period. After the first signal converging period and the second signal converging period, electric currents are supplied to the light emitting elements of the first pixel circuit and of the second pixel circuit.
    Type: Grant
    Filed: April 4, 2017
    Date of Patent: January 22, 2019
    Assignee: Japan Display Inc.
    Inventor: Hajime Akimoto
  • Publication number: 20190013372
    Abstract: A display device according to an embodiment of the present invention includes: an underlying structure layer; a first lower electrode that is arranged on the underlying structure layer; multiple lower electrodes including a second lower electrode adjacent to the first lower electrode; an organic layer that is arranged on the multiple lower electrodes; an upper electrode that is arranged on the organic layer; a first through hole that is arranged between the first lower electrode and the second lower electrode and includes a first inorganic layer at least in a part of an inner face; and a second inorganic layer that is arranged on the upper electrode and is in contact with the first inorganic layer in the inner face of the first through hole.
    Type: Application
    Filed: July 2, 2018
    Publication date: January 10, 2019
    Applicant: Japan Display Inc.
    Inventors: Koji YASUKAWA, Hajime AKIMOTO
  • Patent number: 10163995
    Abstract: The purpose of the present invention is to precisely determine an area of the evaporated organic EL material in an organic EL display device, where organic EL layers in individual pixels emit light of different wave lengths. The purpose is realized by a structure that: A display device comprising: pixel electrodes are formed in a matrix arrangement on a substrate and a space exists between the pixel electrodes, a bank, which covers an edge of the pixel electrode, having an opening that exposes a part of one of the pixel electrodes, a first projection formed on a top of the bank and along a side of the opening, a second projection formed in an area that is near to the center of the top of the bank than the first projection is, in a plan view.
    Type: Grant
    Filed: August 15, 2017
    Date of Patent: December 25, 2018
    Assignee: Japan Display Inc.
    Inventors: Yuki Hamada, Hajime Akimoto
  • Publication number: 20180356927
    Abstract: Provided is a display device including a plurality of pixels and a touch sensor overlapping with the plurality of pixels, the touch sensor. The touch sensor possesses: a first wiring arranged in a first direction and including a plurality of first electrodes; and a second wiring arranged in a second direction intersecting the first direction and including a plurality of second electrodes. Each of the first electrodes and each of the second electrodes vary in width continuously or stepwise in the first direction and the second direction, respectively, and satisfy a certain relationship with respect to an area and a total length of sides thereof.
    Type: Application
    Filed: June 1, 2018
    Publication date: December 13, 2018
    Inventors: Tohru SASAKI, Hajime AKIMOTO
  • Publication number: 20180331319
    Abstract: A display device includes a flexible substrate including a first surface and a second surface facing the first surface; a TFT array layer provided on the first surface; a display element layer provided on the TFT array layer; a first heat releasing layer provided on the second surface; a first protective layer provided on the same side as the second surface; a second heat releasing layer provided on the display element layer; and a second protective layer provided on the display element layer. The second heat releasing layer has a light transmittance of 90% or higher.
    Type: Application
    Filed: May 3, 2018
    Publication date: November 15, 2018
    Inventors: Kenta HIRAGA, Hajime Akimoto
  • Publication number: 20180329549
    Abstract: The first and second touch electrodes constitute a mesh shape of staying away from overlap with the light-emitting pixels. Each electrode body has a first slim portion between adjacent light-emitting pixels in the first direction. Each electrode body has a first wide portion between adjacent light-emitting pixels in the second direction. The first wide portion is wider than the first slim portion. The jumper electrode has a second slim portion between adjacent light-emitting pixels in the first direction. The jumper electrode has a second wide portion between adjacent light-emitting pixels in the second direction. The second wide portion is wider than the second slim portion. The light-emitting pixels each have a planar shape longer in the second direction than in the first direction. The first and second wide portions are overlapped and electrically conductive, penetrating the insulation film.
    Type: Application
    Filed: April 24, 2018
    Publication date: November 15, 2018
    Applicant: Japan Display Inc.
    Inventors: Mitsuhide Miyamoto, Hajime Akimoto
  • Publication number: 20180321766
    Abstract: A display device according to an embodiment of the present invention includes: a plurality of first electrodes arranged on a plurality of display elements, a plurality of second electrodes arranged in a layer identical to or different from a layer of the first electrodes, and a plurality of first touch signal lines connected to the plurality of first electrodes; a plurality of connection terminal provided in the peripheral area; a first switch which switches a status of an electric connection between one of the plurality of image signal lines and one of the plurality of connection terminals from connected to disconnected, or vice versa; and a second switch which switches a status of an electric connection between one of the plurality of first touch signal lines and the one of the plurality of connection terminals from connected to disconnected, or vice versa.
    Type: Application
    Filed: May 1, 2018
    Publication date: November 8, 2018
    Applicant: Japan Display Inc.
    Inventors: Hajime AKIMOTO, Mitsuhide MIYAMOTO
  • Patent number: 10115782
    Abstract: Provided is a display device which has a rectangular display region with four sides. The display region includes a gate line, a signal line, a first sub-pixel electrically connected to the gate line and the signal line, and a light-emitting element included in the first sub-pixel. The gate line includes a first linear portion and a second linear portion which have vectors different in direction from each other, and the first linear portion and the second linear portion are directly connected to each other. The signal line includes a third linear portion and a fourth linear portion which have vectors different in direction from each other, and the third linear portion and the fourth linear portion are directly connected. The first to fourth linear portions are each inclined from the four sides.
    Type: Grant
    Filed: November 16, 2016
    Date of Patent: October 30, 2018
    Assignee: Japan Display Inc.
    Inventors: Yusuke Tada, Hajime Akimoto
  • Patent number: 10115777
    Abstract: A display device includes a plurality of pixel electrodes including a first pixel electrode, a first electrode adjacent to the first pixel electrode and arranged separated from the first pixel electrode, a bank covering an edge part of the first pixel electrode, an end part of the first electrode, and a region between the first pixel electrode and the first electrode, a first organic layer arranged above the first pixel electrode, above the first electrode and above the bank, a second organic layer arranged above the first organic layer overlapping the first pixel electrode, a third organic layer arranged above the second organic layer, above the first organic layer overlapping the first electrode, and above the first organic layer overlapping the bank, an opposing electrode arranged above the third organic layer overlapping the first pixel electrode, and a second electrode arranged above the third organic layer overlapping the first electrode.
    Type: Grant
    Filed: April 20, 2017
    Date of Patent: October 30, 2018
    Assignee: Japan Display Inc.
    Inventors: Masaki Tanaka, Hajime Akimoto
  • Patent number: 10109687
    Abstract: A sealing member containing conductive particles and disposed in a seal region is formed between a display panel and a touch panel. A laminated structure formed on the display panel includes a first detection lines. The first detection lines extend from the seal region to a connection region and are connected through the conductive particles to terminals of second detection lines formed on the touch panel. A peripheral edge of the organic barrier is located inward from the conductive particles of the sealing member. The above described structure can facilitate a work for connecting external lines such as FPC to the display panel and the touch panel. Further, the structure can secure stability of electrical connection between the external lines and the touch panel.
    Type: Grant
    Filed: December 6, 2017
    Date of Patent: October 23, 2018
    Assignee: Japan Display Inc.
    Inventors: Mitsuhide Miyamoto, Hajime Akimoto
  • Publication number: 20180301519
    Abstract: A display device may include an insulation layer having openings, the insulation layer having opening edges around the respective openings; pixel electrodes in the respective openings and on the respective opening edges; an electroluminescence layer continuously on the pixel electrodes, the electroluminescence layer consisting of some layers including a bottom layer thereof, the electroluminescence layer including a light emitting layer in one of the layers except for at least the bottom layer, the light emitting layer overlapping with a corresponding one of the pixel electrodes; and a counter electrode on the electroluminescence layer.
    Type: Application
    Filed: April 3, 2018
    Publication date: October 18, 2018
    Applicant: Japan Display Inc.
    Inventors: Chunche MA, Hajime Akimoto, Masakazu Gunji
  • Patent number: 10095054
    Abstract: A display device includes: a first organic layer; display elements over the first organic layer in correspondence with the pixels; an inorganic layer sealing the display elements and the first organic layer; a second organic layer on a part of the inorganic layer; and a touch electrode on a surface of the inorganic layer and a surface of the second organic layer. The first organic layer has a rift in the peripheral area to surround the display area. The inorganic layer includes a concave part over the rift, and extends from the display area to the peripheral area continuously. The second organic layer is on the concave part of the inorganic layer. The surface of the second organic layer on which a touch electrode is put is contiguous to and is surrounded by the surface of the inorganic layer on the concave part.
    Type: Grant
    Filed: June 21, 2017
    Date of Patent: October 9, 2018
    Assignee: Japan Display Inc.
    Inventors: Yusuke Tada, Hajime Akimoto