Patents by Inventor Hyejin GWARK

Hyejin GWARK 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: 11943957
    Abstract: A display apparatus includes a substrate including a display area including a transmission area and a pixel area, and a peripheral area adjacent to the display area; a display element disposed corresponding to the pixel area, the display element including a pixel electrode, an intermediate layer on the pixel electrode, and an opposite electrode on the intermediate layer; a hydrophobic layer disposed corresponding to the transmission area; and a plurality of fine particles disposed on the hydrophobic layer, the plurality of fine particles and the opposite electrode including a same material.
    Type: Grant
    Filed: June 3, 2021
    Date of Patent: March 26, 2024
    Assignee: SAMSUNG DISPLAY CO., LTD.
    Inventors: Jaeik Kim, Hyejin Gwark, Jungsun Park, Heemin Park, Yongsub Shim, Yeonhwa Lee, Joongu Lee, Jongbeom Hong
  • Publication number: 20230172005
    Abstract: An organic light-emitting display device includes: a substrate; an insulating layer disposed on the substrate; a first electrode disposed on the insulating layer; a pixel defining layer disposed on the first electrode and defining an emission area by an opening that exposes at least part of the first electrode; a metal layer disposed on the pixel defining layer and in a non-emission area around the emission area; an organic light-emitting layer disposed on the first electrode in the opening; and a second electrode disposed on the organic light-emitting layer in the emission area and the non-emission area, where the metal layer is disposed between the pixel defining layer and the second electrode in the non-emission area.
    Type: Application
    Filed: November 18, 2022
    Publication date: June 1, 2023
    Inventors: Heemin Park, Arong Kim, Jungsun Park, Yeonhwa Lee, Hyejin Gwark, Jaeik Kim, Joongu Lee, Kyuhwan Hwang
  • Publication number: 20230172007
    Abstract: An organic light-emitting display apparatus, including a substrate including a plurality of pixel areas and non-pixel areas in a display area, a plurality of pixel electrodes respectively corresponding to the plurality of pixel areas, a pixel-defining layer including a cover portion and openings, wherein the cover portion covers an edge of each of the plurality of pixel electrodes, and each of the openings exposes a central portion of a pixel electrode among the plurality of pixel electrodes, an auxiliary electrode located such that the auxiliary electrode corresponds to at least a portion of a top surface of the cover portion, and an intermediate layer and a counter electrode, each located in the openings. The pixel-defining layer may have an under-cut structure in which the at least a portion of the top surface of the cover portion is recessed from the auxiliary electrode.
    Type: Application
    Filed: January 30, 2023
    Publication date: June 1, 2023
    Inventors: Duckjung LEE, Hyejin GWARK, Arong KIM, Jungsun PARK, Hyunsung BANG
  • Publication number: 20230133603
    Abstract: A display apparatus includes: an auxiliary line comprising a main sub-layer and an upper layer on the main sub-layer; an insulating layer comprising a first opening having a greater width than the auxiliary line, wherein the first opening overlaps the auxiliary line; a first electrode on the insulating layer; an intermediate layer overlapping the first electrode and comprising an emission layer; an auxiliary layer, at least a portion of which overlaps the auxiliary line; and a second electrode on the auxiliary layer, wherein the upper layer of the auxiliary line comprises a tip protruding, in a lateral direction, from a first point, in which a side surface and an upper surface of the main sub-layer meet each other, and being curved upwards from the first point, and the second electrode contacts the side surface of the main sub-layer through the first opening of the insulating layer.
    Type: Application
    Filed: October 17, 2022
    Publication date: May 4, 2023
    Inventors: Heemin Park, Joongu Lee, Hyejin Gwark, Arong Kim, Jaeik Kim, Jungsun Park, Yeonhwa Lee, Kyuhwan Hwang
  • Publication number: 20230135268
    Abstract: A display apparatus includes an auxiliary line that includes a main sublayer, a lower sublayer arranged under the main sublayer, and an upper sublayer arranged over the main sublayer, a partition wall adjacent to the auxiliary line and that includes an opening corresponding to a side surface of the auxiliary line, a first electrode adjacent to the auxiliary line, a second electrode arranged over the first electrode and the auxiliary line, and an intermediate layer arranged between the first electrode and the second electrode and that includes an emission layer, wherein the upper sublayer of the auxiliary line includes a tip protruding in a lateral direction from a point where a side surface and an upper surface of the main sublayer meet each other, an upper end of the partition wall is spaced apart from the tip of the auxiliary line, and the second electrode contacts the auxiliary line.
    Type: Application
    Filed: September 23, 2022
    Publication date: May 4, 2023
    Inventors: Arong Kim, Jungsun Park, Hyejin Gwark, Heemin Park, Yeonhwa Lee, Kyuhwan Hwang, Jaeik Kim, Joongu Lee
  • Publication number: 20230103050
    Abstract: A display device including a transmission area having improved transmittance and a method of manufacturing the same are provided. The display device includes: a substrate including a display area and a peripheral area outside the display area, the display area having a transmission area and a pixel area; a display element corresponding to the pixel area and including a pixel electrode, an intermediate layer on the pixel electrode, and a counter electrode on the intermediate layer; a photoluminescent layer corresponding to the transmission area and including a photoluminescent material; and an auxiliary layer on the photoluminescent layer, wherein the counter electrode includes a first material, the auxiliary layer includes a second material, and the first material is higher in surface energy than the second material, at room temperature.
    Type: Application
    Filed: June 10, 2022
    Publication date: March 30, 2023
    Inventors: Joongu Lee, Hyejin Gwark, Arong Kim, Jaeik Kim, Jungsun Park, Heemin Park, Yeonhwa Lee, Kyuhwan Hwang
  • Publication number: 20230078043
    Abstract: A display device includes an auxiliary wiring located on a substrate; an insulating layer arranged on the auxiliary wiring, overlapping the auxiliary wiring in a plan view, and including an opening having a width greater than a width of the auxiliary wiring; a first electrode located on the insulating layer; a bank layer including an emission opening that overlaps the first electrode in a plan view; an intermediate layer overlapping the first electrode through an emission opening in a plan view and including an emission layer; a second electrode on the intermediate layer; and an auxiliary layer arranged on the second electrode, wherein the auxiliary wiring includes sub-layers, and each of the second electrode and the auxiliary layer contacts a side surface of one of the sub-layers through the opening of the insulating layer.
    Type: Application
    Filed: May 5, 2022
    Publication date: March 16, 2023
    Applicant: Samsung Display Co., Ltd.
    Inventors: Jaeik KIM, Hyejin GWARK, Arong KIM, Jungsun PARK, Heemin PARK, Yeonhwa LEE, Joongu LEE, Kyuhwan HWANG
  • Publication number: 20230053320
    Abstract: A display apparatus includes a substrate, a first electrode, a second electrode to be adjacent to the first electrode, a first emission layer on the first electrode, a second emission layer on the second electrode, a first low adhesive pattern between a center of the first emission layer and a center of the second emission layer in a plan view, a first negative charge generation layer continuously disposed to cover the first emission layer, the second emission layer, and the first low adhesive pattern, a first positive charge generation layer on the first negative charge generation layer, a first upper emission layer on the first positive charge generation layer and overlapping the first emission layer, a second upper emission layer on the first positive charge generation layer and overlapping the second emission layer, and a common electrode on the first upper emission layer and the second upper emission layer.
    Type: Application
    Filed: August 12, 2022
    Publication date: February 16, 2023
    Inventors: Jungsun PARK, Hyejin Gwark, Arong Kim, Jaeik Kim, Heemin Park, Seungyong Song, Duckjung Lee, Yeonhwa Lee, Joongu Lee, Kyuhwan Hwang
  • Patent number: 11569317
    Abstract: An organic light-emitting display apparatus, including a substrate including a plurality of pixel areas and non-pixel areas in a display area, a plurality of pixel electrodes respectively corresponding to the plurality of pixel areas, a pixel-defining layer including a cover portion and openings, wherein the cover portion covers an edge of each of the plurality of pixel electrodes, and each of the openings exposes a central portion of a pixel electrode among the plurality of pixel electrodes, an auxiliary electrode located such that the auxiliary electrode corresponds to at least a portion of a top surface of the cover portion, and an intermediate layer and a counter electrode, each located in the openings. The pixel-defining layer may have an under-cut structure in which the at least a portion of the top surface of the cover portion is recessed from the auxiliary electrode.
    Type: Grant
    Filed: May 27, 2021
    Date of Patent: January 31, 2023
    Assignee: Samsung Display Co., Ltd.
    Inventors: Duckjung Lee, Hyejin Gwark, Arong Kim, Jungsun Park, Hyunsung Bang
  • Publication number: 20220013749
    Abstract: A display apparatus includes a substrate including a display area including a transmission area and a pixel area, and a peripheral area adjacent to the display area; a display element disposed corresponding to the pixel area, the display element including a pixel electrode, an intermediate layer on the pixel electrode, and an opposite electrode on the intermediate layer; a hydrophobic layer disposed corresponding to the transmission area; and a plurality of fine particles disposed on the hydrophobic layer, the plurality of fine particles and the opposite electrode including a same material.
    Type: Application
    Filed: June 3, 2021
    Publication date: January 13, 2022
    Applicant: Samsung Display Co., Ltd.
    Inventors: Jaeik KIM, Hyejin GWARK, Jungsun PARK, Heemin PARK, Yongsub SHIM, Yeonhwa LEE, Joongu LEE, Jongbeom HONG
  • Publication number: 20210296416
    Abstract: An organic light-emitting display apparatus, including a substrate including a plurality of pixel areas and non-pixel areas in a display area, a plurality of pixel electrodes respectively corresponding to the plurality of pixel areas, a pixel-defining layer including a cover portion and openings, wherein the cover portion covers an edge of each of the plurality of pixel electrodes, and each of the openings exposes a central portion of a pixel electrode among the plurality of pixel electrodes, an auxiliary electrode located such that the auxiliary electrode corresponds to at least a portion of a top surface of the cover portion, and an intermediate layer and a counter electrode, each located in the openings. The pixel-defining layer may have an under-cut structure in which the at least a portion of the top surface of the cover portion is recessed from the auxiliary electrode.
    Type: Application
    Filed: May 27, 2021
    Publication date: September 23, 2021
    Inventors: Duckjung LEE, Hyejin GWARK, Arong KIM, Jungsun PARK, Hyunsung BANG
  • Patent number: 11049916
    Abstract: An organic light-emitting display apparatus, including a substrate including a plurality of pixel areas and non-pixel areas in a display area, a plurality of pixel electrodes respectively corresponding to the plurality of pixel areas, a pixel-defining layer including a cover portion and openings, wherein the cover portion covers an edge of each of the plurality of pixel electrodes, and each of the openings exposes a central portion of a pixel electrode among the plurality of pixel electrodes, an auxiliary electrode located such that the auxiliary electrode corresponds to at least a portion of a top surface of the cover portion, and an intermediate layer and a counter electrode, each located in the openings. The pixel-defining layer may have an under-cut structure in which the at least a portion of the top surface of the cover portion is recessed from the auxiliary electrode.
    Type: Grant
    Filed: January 3, 2019
    Date of Patent: June 29, 2021
    Assignee: Samsung Display Co., Ltd.
    Inventors: Duckjung Lee, Hyejin Gwark, Arong Kim, Jungsun Park, Hyunsung Bang
  • Publication number: 20190237527
    Abstract: An organic light-emitting display apparatus, including a substrate including a plurality of pixel areas and non-pixel areas in a display area, a plurality of pixel electrodes respectively corresponding to the plurality of pixel areas, a pixel-defining layer including a cover portion and openings, wherein the cover portion covers an edge of each of the plurality of pixel electrodes, and each of the openings exposes a central portion of a pixel electrode among the plurality of pixel electrodes, an auxiliary electrode located such that the auxiliary electrode corresponds to at least a portion of a top surface of the cover portion, and an intermediate layer and a counter electrode, each located in the openings. The pixel-defining layer may have an under-cut structure in which the at least a portion of the top surface of the cover portion is recessed from the auxiliary electrode.
    Type: Application
    Filed: January 3, 2019
    Publication date: August 1, 2019
    Inventors: Duckjung LEE, Hyejin GWARK, Arong KIM, Jungsun PARK, Hyunsung BANG