Patents by Inventor Hyunae KIM

Hyunae KIM 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: 12183225
    Abstract: A display apparatus includes a base substrate including a display region in which an image is displayed and a peripheral region that is a non-display region adjacent to the display region, a plurality of pixels disposed on the base substrate in the display region, each of the pixels including a thin film transistor that includes an oxide semiconductor pattern, a data driver disposed in the peripheral region and configured to provide a data voltage to the pixels, and a plurality of test patterns disposed on the base substrate in the peripheral region, each of the test patterns including a test thin film transistor that includes a test oxide semiconductor pattern.
    Type: Grant
    Filed: February 1, 2019
    Date of Patent: December 31, 2024
    Assignee: Samsung Display Co., Ltd.
    Inventors: Cha-dong Kim, Youngdae Kim, Hyunae Kim, Chongsup Chang, Eui-kang Heo
  • Patent number: 11837583
    Abstract: A display device including a pixel circuit, an insulation layer covering the pixel circuit, an etching prevention layer disposed on the insulation layer, a first guide layer, a second guide layer, a first electrode, a second electrode, and a light emitting element. The first guide layer and the second guide layer may be disposed on the etching prevention layer and spaced apart from each other. The first electrode may be disposed on the first guide layer and electrically connected to the pixel circuit. The second electrode may be disposed on the first guide layer and insulated from the first electrode. The light emitting element may be in contact with the top surface of the etching prevention layer, disposed between the first guide layer and the second guide layer on a plane, and electrically connected to the first electrode and the second electrode.
    Type: Grant
    Filed: November 5, 2021
    Date of Patent: December 5, 2023
    Assignee: SAMSUNG DISPLAY CO., LTD.
    Inventors: Euikang Heo, Cha-Dong Kim, Hyunae Kim, Chongsup Chang
  • Patent number: 11705540
    Abstract: A display device includes a substrate, a first electrode disposed on the substrate, a second electrode disposed on the substrate and spaced apart from the first electrode, a plurality of first protruding electrodes disposed on the first electrode, a plurality of second protruding electrodes disposed on the second electrode, and a plurality of light emitting elements electrically connected to the plurality of first protruding electrodes and the plurality of second protruding electrodes.
    Type: Grant
    Filed: October 14, 2022
    Date of Patent: July 18, 2023
    Assignee: Samsung Display Co., Ltd.
    Inventors: Chongsup Chang, Youngdae Kim, Hyunae Kim, Euikang Heo
  • Patent number: 11705481
    Abstract: Provided is a display device including a substrate, a first electrode disposed on the substrate, a second electrode disposed on the substrate and spaced apart from the first electrode, a plurality of first sub-insulating layers extending in a first direction, disposed on the substrate and on the first and second electrodes, and arranged in a second direction crossing the first direction, and a plurality of light emitting elements disposed between the first sub-insulating layers and electrically connected to the first electrode and the second electrode.
    Type: Grant
    Filed: May 26, 2022
    Date of Patent: July 18, 2023
    Assignee: Samsung Display Co., Ltd.
    Inventors: Hyunae Kim, Youngdae Kim, Cha-dong Kim, Chongsup Chang, Euikang Heo
  • Patent number: 11637094
    Abstract: A display device includes a pixel circuit, a first insulating layer covering the pixel circuit, a first electrode disposed on the first insulating layer, a second electrode disposed on the first insulating layer and spaced apart from the first electrode in a first direction, and a light emitting element electrically connected to the first electrode and the second electrode and disposed between the first electrode and the second electrode. A recess is provided in a first region of the first insulating layer between the first electrode and the second electrode when viewed in a plan view, and a width of the recess in the first direction is greater than a length of the light emitting element in the first direction. The first electrode and the second electrode do not overlap the recess when viewed in a plan view.
    Type: Grant
    Filed: July 29, 2021
    Date of Patent: April 25, 2023
    Assignee: Samsung Display Co., Ltd.
    Inventors: Euikang Heo, Cha-dong Kim, Hyunae Kim, Chongsup Chang
  • Publication number: 20230065735
    Abstract: A display device includes a substrate, a first electrode disposed on the substrate, a second electrode disposed on the substrate and spaced apart from the first electrode, a plurality of first protruding electrodes disposed on the first electrode, a plurality of second protruding electrodes disposed on the second electrode, and a plurality of light emitting elements electrically connected to the plurality of first protruding electrodes and the plurality of second protruding electrodes.
    Type: Application
    Filed: October 14, 2022
    Publication date: March 2, 2023
    Inventors: Chongsup CHANG, Youngdae KIM, Hyunae KIM, Euikang HEO
  • Patent number: 11476392
    Abstract: A display device includes a substrate, a first electrode disposed on the substrate, a second electrode disposed on the substrate and spaced apart from the first electrode, a plurality of first protruding electrodes disposed on the first electrode, a plurality of second protruding electrodes disposed on the second electrode, and a plurality of light emitting elements electrically connected to the plurality of first protruding electrodes and the plurality of second protruding electrodes.
    Type: Grant
    Filed: August 16, 2019
    Date of Patent: October 18, 2022
    Assignee: Samsung Display Co., Ltd.
    Inventors: Chongsup Chang, Youngdae Kim, Hyunae Kim, Euikang Heo
  • Publication number: 20220285432
    Abstract: Provided is a display device including a substrate, a first electrode disposed on the substrate, a second electrode disposed on the substrate and spaced apart from the first electrode, a plurality of first sub-insulating layers extending in a first direction, disposed on the substrate and on the first and second electrodes, and arranged in a second direction crossing the first direction, and a plurality of light emitting elements disposed between the first sub-insulating layers and electrically connected to the first electrode and the second electrode.
    Type: Application
    Filed: May 26, 2022
    Publication date: September 8, 2022
    Inventors: Hyunae KIM, Youngdae KIM, Cha-dong KIM, Chongsup CHANG, Euikang HEO
  • Patent number: 11348966
    Abstract: Provided is a display device including a substrate, a first electrode disposed on the substrate, a second electrode disposed on the substrate and spaced apart from the first electrode, a plurality of first sub-insulating layers extending in a first direction, disposed on the substrate and on the first and second electrodes, and arranged in a second direction crossing the first direction, and a plurality of light emitting elements disposed between the first sub-insulating layers and electrically connected to the first electrode and the second electrode.
    Type: Grant
    Filed: September 19, 2019
    Date of Patent: May 31, 2022
    Assignee: Samsung Display Co., Ltd.
    Inventors: Hyunae Kim, Youngdae Kim, Cha-dong Kim, Chongsup Chang, Euikang Heo
  • Publication number: 20220059513
    Abstract: A display device including a pixel circuit, an insulation layer covering the pixel circuit, an etching prevention layer disposed on the insulation layer, a first guide layer, a second guide layer, a first electrode, a second electrode, and a light emitting element. The first guide layer and the second guide layer may be disposed on the etching prevention layer and spaced apart from each other. The first electrode may be disposed on the first guide layer and electrically connected to the pixel circuit. The second electrode may be disposed on the first guide layer and insulated from the first electrode. The light emitting element may be in contact with the top surface of the etching prevention layer, disposed between the first guide layer and the second guide layer on a plane, and electrically connected to the first electrode and the second electrode.
    Type: Application
    Filed: November 5, 2021
    Publication date: February 24, 2022
    Applicant: Samsung Display Co., Ltd.
    Inventors: Euikang HEO, Cha-Dong KIM, Hyunae KIM, Chongsup CHANG
  • Publication number: 20220045149
    Abstract: A display apparatus includes a base substrate including a display region in which an image is displayed and a peripheral region that is a non-display region adjacent to the display region, a plurality of pixels disposed on the base substrate in the display region, each of the pixels including a thin film transistor that includes an oxide semiconductor pattern, a data driver disposed in the peripheral region and configured to provide a data voltage to the pixels, and a plurality of test patterns disposed on the base substrate in the peripheral region, each of the test patterns including a test thin film transistor that includes a test oxide semiconductor pattern.
    Type: Application
    Filed: February 1, 2019
    Publication date: February 10, 2022
    Inventors: Cha-dong KIM, Youngdae KIM, Hyunae KIM, Chongsup CHANG, Eui-kang HEO
  • Patent number: 11195824
    Abstract: Provided is a pixel. The pixel includes a substrate, a first electrode disposed on the substrate, a partition wall insulation layer disposed on the substrate to cover a first portion of the first electrode, a second electrode disposed on the partition wall insulation layer and including a second portion overlapping the first portion, and a light emitting element disposed on a first side surface of the partition wall insulation layer between the first portion and the second portion and connected to the first electrode and the second electrode.
    Type: Grant
    Filed: January 22, 2021
    Date of Patent: December 7, 2021
    Assignee: Samsung Display Co., Ltd.
    Inventors: Chongsup Chang, Bumsoo Kam, Hyunae Kim, Euikang Heo
  • Publication number: 20210358898
    Abstract: A display device includes a pixel circuit, a first insulating layer covering the pixel circuit, a first electrode disposed on the first insulating layer, a second electrode disposed on the first insulating layer and spaced apart from the first electrode in a first direction, and a light emitting element electrically connected to the first electrode and the second electrode and disposed between the first electrode and the second electrode. A recess is provided in a first region of the first insulating layer between the first electrode and the second electrode when viewed in a plan view, and a width of the recess in the first direction is greater than a length of the light emitting element in the first direction. The first electrode and the second electrode do not overlap the recess when viewed in a plan view.
    Type: Application
    Filed: July 29, 2021
    Publication date: November 18, 2021
    Inventors: Euikang HEO, Cha-dong KIM, Hyunae KIM, Chongsup CHANG
  • Patent number: 11171125
    Abstract: A display device including a pixel circuit, an insulation layer covering the pixel circuit, an etching prevention layer disposed on the insulation layer, a first guide layer, a second guide layer, a first electrode, a second electrode, and a light emitting element. The first guide layer and the second guide layer may be disposed on the etching prevention layer and spaced apart from each other. The first electrode may be disposed on the first guide layer and electrically connected to the pixel circuit. The second electrode may be disposed on the first guide layer and insulated from the first electrode. The light emitting element may be in contact with the top surface of the etching prevention layer, disposed between the first guide layer and the second guide layer on a plane, and electrically connected to the first electrode and the second electrode.
    Type: Grant
    Filed: September 23, 2019
    Date of Patent: November 9, 2021
    Assignee: SAMSUNG DISPLAY CO., LTD.
    Inventors: Euikang Heo, Cha-Dong Kim, Hyunae Kim, Chongsup Chang
  • Publication number: 20210272938
    Abstract: A display device includes a first electrode; a second electrode; a light-emitting element; a first pattern portion adjacent to a first area in which the first electrode and the light-emitting element overlap each other in a plan view; a second pattern portion adjacent to a second area in which the second electrode and the light-emitting element overlap each other in a plan view; a first connection electrode covering the light-emitting element and the first pattern portion and being electrically connected to the light-emitting element and the first electrode; and a second connection electrode covering the light-emitting element and the second pattern portion and being electrically connected to the light-emitting element and the second electrode.
    Type: Application
    Filed: May 13, 2019
    Publication date: September 2, 2021
    Inventors: Chongsup CHANG, Hyunae KIM, Eui Kang HEO
  • Patent number: 11088126
    Abstract: A display device includes a pixel circuit, a first insulating layer covering the pixel circuit, a first electrode disposed on the first insulating layer, a second electrode disposed on the first insulating layer and spaced apart from the first electrode in a first direction, and a light emitting element electrically connected to the first electrode and the second electrode and disposed between the first electrode and the second electrode. A recess is provided in a first region of the first insulating layer between the first electrode and the second electrode when viewed in a plan view, and a width of the recess in the first direction is greater than a length of the light emitting element in the first direction. The first electrode and the second electrode do not overlap the recess when viewed in a plan view.
    Type: Grant
    Filed: June 20, 2019
    Date of Patent: August 10, 2021
    Assignee: Samsung Display Co., Ltd.
    Inventors: Euikang Heo, Cha-dong Kim, Hyunae Kim, Chongsup Chang
  • Publication number: 20210143140
    Abstract: Provided is a pixel. The pixel includes a substrate, a first electrode disposed on the substrate, a partition wall insulation layer disposed on the substrate to cover a first portion of the first electrode, a second electrode disposed on the partition wall insulation layer and including a second portion overlapping the first portion, and a light emitting element disposed on a first side surface of the partition wall insulation layer between the first portion and the second portion and connected to the first electrode and the second electrode.
    Type: Application
    Filed: January 22, 2021
    Publication date: May 13, 2021
    Inventors: Chongsup CHANG, Bumsoo KAM, Hyunae KIM, Euikang HEO
  • Patent number: 10991776
    Abstract: A display apparatus includes a substrate, a pixel defining layer, a spacer, an auxiliary electrode, and an organic light emitting diode. The substrate includes a light emitting area and a non-light emitting area adjacent to the light emitting area. The pixel defining layer is disposed on the non-light emitting area of the substrate. The spacer is disposed on the pixel defining layer. The auxiliary electrode is disposed on the spacer. The organic light emitting diode is disposed on the substrate, and at least a portion thereof is disposed in the light emitting area. The organic light emitting diode includes a pixel electrode, an intermediate layer disposed on the pixel electrode and including an organic light emitting layer, and an opposite electrode disposed on the intermediate layer and electrically connected to the auxiliary electrode.
    Type: Grant
    Filed: October 16, 2019
    Date of Patent: April 27, 2021
    Assignee: Samsung Display Co., Ltd.
    Inventors: Hyunae Kim, Jaesik Kim, Jaeik Kim, Yeonhwa Lee, Joongu Lee, Sehoon Jeong, Mijung Han
  • Patent number: 10930629
    Abstract: Provided is a pixel. The pixel includes a substrate, a first electrode disposed on the substrate, a partition wall insulation layer disposed on the substrate to cover a first portion of the first electrode, a second electrode disposed on the partition wall insulation layer and including a second portion overlapping the first portion, and a light emitting element disposed on a first side surface of the partition wall insulation layer between the first portion and the second portion and connected to the first electrode and the second electrode.
    Type: Grant
    Filed: July 23, 2019
    Date of Patent: February 23, 2021
    Assignee: Samsung Display Co., Ltd.
    Inventors: Chongsup Chang, Bumsoo Kam, Hyunae Kim, Euikang Heo
  • Publication number: 20200168662
    Abstract: Provided is a display device including a substrate, a first electrode disposed on the substrate, a second electrode disposed on the substrate and spaced apart from the first electrode, a plurality of first sub-insulating layers extending in a first direction, disposed on the substrate and on the first and second electrodes, and arranged in a second direction crossing the first direction, and a plurality of light emitting elements disposed between the first sub-insulating layers and electrically connected to the first electrode and the second electrode.
    Type: Application
    Filed: September 19, 2019
    Publication date: May 28, 2020
    Inventors: Hyunae KIM, Youngdae KIM, Cha-dong KIM, Chongsup CHANG, Euikang HEO