Patents by Inventor Mitsuhiro Kashiwabara

Mitsuhiro Kashiwabara 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: 20240023382
    Abstract: An organic light-emitting diode (OLED) display may have an array of organic light-emitting diode pixels that each have OLED layers interposed between a cathode and an anode. Voltage may be applied to the anode of each pixel to control the magnitude of emitted light. The conductivity of the OLED layers may allow leakage current to pass between neighboring anodes in the display. To reduce leakage current and the accompanying cross-talk in a display, a cutting structure may disrupt continuity of the OLED layers. The cutting structure may have two undercuts to disrupt continuity of at least some of the OLED layers. The cutting structure may include a conductive portion that provides a cathode voltage to a cathode layer for the OLED pixels.
    Type: Application
    Filed: September 28, 2023
    Publication date: January 18, 2024
    Inventors: Siddharth Harikrishna Mohan, Gwanwoo Park, Ping Kuen Daniel Tsang, Pei Yin, Weixin Li, Li-An Liu, Alexandru Riposan, Teruo Sasagawa, Steven J Brewer, Younggu Lee, Mitsuhiro Kashiwabara, Rui Liu, Hung-Yi Tsai, Tien-Pei Chou, Yi Wen Wang, Mahendra Chhabra, Chieh Hung Yang, Bhadrinarayana Lalgudi Visweswaran, David K. Schoenwald
  • Patent number: 10916593
    Abstract: A display unit includes a plurality of light emitting devices, each of the light emitting devices including a function layer including at least an organic layer is sandwiched between a first electrode and a second electrode, and which have a resonator structure for resonating light by using a space between the first electrode and the second electrode as a resonant section and extracting the light through the second electrode are arranged on a substrate, wherein in the respective light emitting devices, the organic layer is made of an identical layer, and a distance of the resonant section between the first electrode and the second electrode is set to a plurality of different values.
    Type: Grant
    Filed: July 3, 2019
    Date of Patent: February 9, 2021
    Assignee: Sony Corporation
    Inventors: Mitsuhiro Kashiwabara, Jiro Yamada, Seiichi Yokoyama, Kohji Hanawa
  • Publication number: 20190326358
    Abstract: A display unit includes a plurality of light emitting devices, each of the light emitting devices including a function layer including at least an organic layer is sandwiched between a first electrode and a second electrode, and which have a resonator structure for resonating light by using a space between the first electrode and the second electrode as a resonant section and extracting the light through the second electrode are arranged on a substrate, wherein in the respective light emitting devices, the organic layer is made of an identical layer, and a distance of the resonant section between the first electrode and the second electrode is set to a plurality of different values.
    Type: Application
    Filed: July 3, 2019
    Publication date: October 24, 2019
    Inventors: Mitsuhiro KASHIWABARA, Jiro YAMADA, Seiichi YOKOYAMA, Kohji HANAWA
  • Patent number: 10347697
    Abstract: A display unit includes a plurality of light emitting devices, each of the light emitting devices including a function layer including at least an organic layer is sandwiched between a first electrode and a second electrode, and which have a resonator structure for resonating light by using a space between the first electrode and the second electrode as a resonant section and extracting the light through the second electrode are arranged on a substrate, wherein in the respective light emitting devices, the organic layer is made of an identical layer, and a distance of the resonant section between the first electrode and the second electrode is set to a plurality of different values.
    Type: Grant
    Filed: March 5, 2018
    Date of Patent: July 9, 2019
    Assignee: Sony Corporation
    Inventors: Mitsuhiro Kashiwabara, Jiro Yamada, Seiichi Yokoyama, Kohji Hanawa
  • Publication number: 20180197923
    Abstract: A display unit includes a plurality of light emitting devices, each of the light emitting devices including a function layer including at least an organic layer is sandwiched between a first electrode and a second electrode, and which have a resonator structure for resonating light by using a space between the first electrode and the second electrode as a resonant section and extracting the light through the second electrode are arranged on a substrate, wherein in the respective light emitting devices, the organic layer is made of an identical layer, and a distance of the resonant section between the first electrode and the second electrode is set to a plurality of different values.
    Type: Application
    Filed: March 5, 2018
    Publication date: July 12, 2018
    Inventors: Mitsuhiro Kashiwabara, Jiro Yamada, Seiichi Yokoyama, Kohji Hanawa
  • Patent number: 9985250
    Abstract: An organic light emitting device capable of improving the light extraction characteristics while suppressing the driving voltage and improving the luminescent performance, and a display unit using it are provided. The organic light emitting device includes: a lamination structure that includes a cathode, a plurality of layers including a light emitting layer made of an organic material, and an anode including a metal thin film in this order, in which the cathode is reflective and the anode is semi-transparent to light generated in the light emitting layer; and a resonator structure that resonates the light generated in the light emitting layer between the cathode and the anode.
    Type: Grant
    Filed: June 30, 2017
    Date of Patent: May 29, 2018
    Assignee: SONY CORPORATION
    Inventor: Mitsuhiro Kashiwabara
  • Patent number: 9911792
    Abstract: A display unit includes a plurality of light emitting devices, each of the light emitting devices including a function layer including at least an organic layer is sandwiched between a first electrode and a second electrode, and which have a resonator structure for resonating light by using a space between the first electrode and the second electrode as a resonant section and extracting the light through the second electrode are arranged on a substrate, wherein in the respective light emitting devices, the organic layer is made of an identical layer, and a distance of the resonant section between the first electrode and the second electrode is set to a plurality of different values.
    Type: Grant
    Filed: February 14, 2017
    Date of Patent: March 6, 2018
    Assignee: Sony Corporation
    Inventors: Mitsuhiro Kashiwabara, Jiro Yamada, Seiichi Yokoyama, Kohji Hanawa
  • Publication number: 20170301885
    Abstract: An organic light emitting device capable of improving the light extraction characteristics while suppressing the driving voltage and improving the luminescent performance, and a display unit using it are provided. The organic light emitting device includes: a lamination structure that includes a cathode, a plurality of layers including a light emitting layer made of an organic material, and an anode including a metal thin film in this order, in which the cathode is reflective and the anode is semi-transparent to light generated in the light emitting layer; and a resonator structure that resonates the light generated in the light emitting layer between the cathode and the anode.
    Type: Application
    Filed: June 30, 2017
    Publication date: October 19, 2017
    Inventor: Mitsuhiro Kashiwabara
  • Patent number: 9786731
    Abstract: A display device includes a substrate. A pixel electrode is disposed on the substrate. An auxiliary electrode is disposed on the substrate. A first auxiliary line is connected to the auxiliary electrode. A second auxiliary line is spaced apart from the auxiliary electrode. A top electrode contacts at least one of the auxiliary electrode, the first auxiliary line, or the second auxiliary line. An organic light emitting layer is disposed between the top electrode and the pixel electrode, and is disposed between the top electrode and the first and second auxiliary lines.
    Type: Grant
    Filed: March 18, 2016
    Date of Patent: October 10, 2017
    Assignee: SAMSUNG DISPLAY CO., LTD.
    Inventors: Toshiyuki Matsuura, Mitsuhiro Kashiwabara
  • Patent number: 9786869
    Abstract: An organic light emitting device capable of improving the light extraction characteristics while suppressing the driving voltage and improving the luminescent performance, and a display unit using it are provided. The organic light emitting device includes: a lamination structure that includes a cathode, a plurality of layers including a light emitting layer made of an organic material, and an anode including a metal thin film in this order, in which the cathode is reflective and the anode is semi-transparent to light generated in the light emitting layer; and a resonator structure that resonates the light generated in the light emitting layer between the cathode and the anode.
    Type: Grant
    Filed: August 23, 2016
    Date of Patent: October 10, 2017
    Assignee: SONY CORPORATION
    Inventor: Mitsuhiro Kashiwabara
  • Patent number: 9722202
    Abstract: Display apparatus, including a substrate; a pixel electrode on the substrate and corresponding to a pixel; an auxiliary line on the substrate and insulated from the pixel electrode; an insulation layer on the pixel electrode and the auxiliary line, the insulation layer covering at least a portion of the pixel electrode and at least a portion of the auxiliary line; an organic light emitting layer on the pixel electrode, the auxiliary line, and the insulation layer; a first electrode on the organic light emitting layer and overlapping at least a portion of the auxiliary line; an opening in each of the organic light emitting layer and the first electrode to correspond to the auxiliary line; and a second electrode on the first electrode and an exposed portion of the auxiliary line, the second electrode electrically connecting the auxiliary line to the first electrode, the exposed portion of the auxiliary line being exposed by the opening.
    Type: Grant
    Filed: April 20, 2015
    Date of Patent: August 1, 2017
    Assignee: Samsung Display Co., Ltd.
    Inventors: Mitsuhiro Kashiwabara, Toshiyuki Matsuura
  • Publication number: 20170154932
    Abstract: A display unit includes a plurality of light emitting devices, each of the light emitting devices including a function layer including at least an organic layer is sandwiched between a first electrode and a second electrode, and which have a resonator structure for resonating light by using a space between the first electrode and the second electrode as a resonant section and extracting the light through the second electrode are arranged on a substrate, wherein in the respective light emitting devices, the organic layer is made of an identical layer, and a distance of the resonant section between the first electrode and the second electrode is set to a plurality of different values.
    Type: Application
    Filed: February 14, 2017
    Publication date: June 1, 2017
    Inventors: Mitsuhiro Kashiwabara, Jiro Yamada, Seiichi Yokoyama, Kohji Hanawa
  • Patent number: 9627453
    Abstract: A display unit includes a plurality of light emitting devices, each of the light emitting devices including a function layer including at least an organic layer is sandwiched between a first electrode and a second electrode, and which have a resonator structure for resonating light by using a space between the first electrode and the second electrode as a resonant section and extracting the light through the second electrode are arranged on a substrate, wherein in the respective light emitting devices, the organic layer is made of an identical layer, and a distance of the resonant section between the first electrode and the second electrode is set to a plurality of different values.
    Type: Grant
    Filed: June 9, 2016
    Date of Patent: April 18, 2017
    Assignee: Sony Corporation
    Inventors: Mitsuhiro Kashiwabara, Jiro Yamada, Seiichi Yokoyama, Kohji Hanawa
  • Publication number: 20160359140
    Abstract: An organic light emitting device capable of improving the light extraction characteristics while suppressing the driving voltage and improving the luminescent performance, and a display unit using it are provided. The organic light emitting device includes: a lamination structure that includes a cathode, a plurality of layers including a light emitting layer made of an organic material, and an anode including a metal thin film in this order, in which the cathode is reflective and the anode is semi-transparent to light generated in the light emitting layer; and a resonator structure that resonates the light generated in the light emitting layer between the cathode and the anode.
    Type: Application
    Filed: August 23, 2016
    Publication date: December 8, 2016
    Inventor: Mitsuhiro Kashiwabara
  • Publication number: 20160293673
    Abstract: A display unit includes a plurality of light emitting devices, each of the light emitting devices including a function layer including at least an organic layer is sandwiched between a first electrode and a second electrode, and which have a resonator structure for resonating light by using a space between the first electrode and the second electrode as a resonant section and extracting the light through the second electrode are arranged on a substrate, wherein in the respective light emitting devices, the organic layer is made of an identical layer, and a distance of the resonant section between the first electrode and the second electrode is set to a plurality of different values.
    Type: Application
    Filed: June 9, 2016
    Publication date: October 6, 2016
    Inventors: Mitsuhiro Kashiwabara, Jiro Yamada, Seiichi Yokoyama, Kohji Hanawa
  • Patent number: 9461274
    Abstract: An organic light emitting device capable of improving the light extraction characteristics while suppressing the driving voltage and improving the luminescent performance, and a display unit using it are provided. The organic light emitting device includes: a lamination structure that includes a cathode, a plurality of layers including a light emitting layer made of an organic material, and an anode including a metal thin film in this order, in which the cathode is reflective and the anode is semi-transparent to light generated in the light emitting layer; and a resonator structure that resonates the light generated in the light emitting layer between the cathode and the anode.
    Type: Grant
    Filed: February 3, 2015
    Date of Patent: October 4, 2016
    Assignee: SONY CORPORATION
    Inventor: Mitsuhiro Kashiwabara
  • Publication number: 20160284785
    Abstract: A display device includes a substrate. A pixel electrode is disposed on the substrate. An auxiliary electrode is disposed on the substrate. A first auxiliary line is connected to the auxiliary electrode. A second auxiliary line is spaced apart from the auxiliary electrode. A top electrode contacts at least one of the auxiliary electrode, the first auxiliary line, or the second auxiliary line. An organic light emitting layer is disposed between the top electrode and the pixel electrode, and is disposed between the top electrode and the first and second auxiliary lines.
    Type: Application
    Filed: March 18, 2016
    Publication date: September 29, 2016
    Inventors: Toshiyuki MATSUURA, Mitsuhiro KASHIWABARA
  • Patent number: 9373672
    Abstract: A display unit includes a plurality of light emitting devices, each of the light emitting devices including a function layer including at least an organic layer is sandwiched between a first electrode and a second electrode, and which have a resonator structure for resonating light by using a space between the first electrode and the second electrode as a resonant section and extracting the light through the second electrode are arranged on a substrate, wherein in the respective light emitting devices, the organic layer is made of an identical layer, and a distance of the resonant section between the first electrode and the second electrode is set to a plurality of different values.
    Type: Grant
    Filed: June 24, 2015
    Date of Patent: June 21, 2016
    Assignee: Sony Corporation
    Inventors: Mitsuhiro Kashiwabara, Jiro Yamada, Seiichi Yokoyama, Kohji Hanawa
  • Publication number: 20150303245
    Abstract: Display apparatus, including a substrate; a pixel electrode on the substrate and corresponding to a pixel; an auxiliary line on the substrate and insulated from the pixel electrode; an insulation layer on the pixel electrode and the auxiliary line, the insulation layer covering at least a portion of the pixel electrode and at least a portion of the auxiliary line; an organic light emitting layer on the pixel electrode, the auxiliary line, and the insulation layer; a first electrode on the organic light emitting layer and overlapping at least a portion of the auxiliary line; an opening in each of the organic light emitting layer and the first electrode to correspond to the auxiliary line; and a second electrode on the first electrode and an exposed portion of the auxiliary line, the second electrode electrically connecting the auxiliary line to the first electrode, the exposed portion of the auxiliary line being exposed by the opening.
    Type: Application
    Filed: April 20, 2015
    Publication date: October 22, 2015
    Inventors: Mitsuhiro KASHIWABARA, Toshiyuki MATSUURA
  • Publication number: 20150295017
    Abstract: A display unit includes a plurality of light emitting devices, each of the light emitting devices including a function layer including at least an organic layer is sandwiched between a first electrode and a second electrode, and which have a resonator structure for resonating light by using a space between the first electrode and the second electrode as a resonant section and extracting the light through the second electrode are arranged on a substrate, wherein in the respective light emitting devices, the organic layer is made of an identical layer, and a distance of the resonant section between the first electrode and the second electrode is set to a plurality of different values.
    Type: Application
    Filed: June 24, 2015
    Publication date: October 15, 2015
    Inventors: Mitsuhiro Kashiwabara, Jiro Yamada, Seiichi Yokoyama, Kohji Hanawa