Patents by Inventor Wonje Jo

Wonje Jo 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: 20240172484
    Abstract: A method of manufacturing a display panel includes providing a work substrate including a first electrode and a pixel-defining layer including an opening exposing at least a part of the first electrode, forming a spacer on the pixel-defining layer, forming a light-emitting layer on the first electrode by providing a deposition material to a mask including a deposition opening corresponding to the opening, removing the mask, and compressing particles remaining on the spacer by a compression tool.
    Type: Application
    Filed: September 15, 2023
    Publication date: May 23, 2024
    Applicant: Samsung Display Co., Ltd.
    Inventors: WONJE JO, CHE HO LEE, SOYEON JEONG, JUNGSU KIM, YOUNG SEO CHOI
  • Publication number: 20240138208
    Abstract: A display device includes: a base layer with first and second areas; a pixel on the first area, wherein the pixel includes a pixel circuit and a light-emitting element, wherein the light-emitting element includes a first electrode, a light-emitting layer, and a second electrode; a first power electrode on the second area and configured to supply a first drive voltage to the pixel circuit; a second power electrode on the second area and configured to supply a second drive voltage to the second electrode; and an insulating layer between the base layer and the first electrode, wherein the insulating layer extends from the first area to the second area, and overlaps the first power electrode, wherein the second electrode extends from the first area toward the second area, and wherein the insulating layer covers an entirety of an overlapping portion of the first power electrode overlapping the second electrode.
    Type: Application
    Filed: September 28, 2023
    Publication date: April 25, 2024
    Inventors: BYUNGROK MOON, SHOGO NISHIZAKI, JAEHYUN KIM, CHE HO LEE, WONJE JO
  • Patent number: 11903301
    Abstract: A method of manufacturing a display panel includes preparing a work substrate that includes a mother substrate that has a plurality of cell areas, a light emitting element layer formed in each of the cell areas, and an encapsulation layer formed on each cell area, disposing a plurality of protective films in the cell areas, respectively, that cover the light emitting element layer and the encapsulation layer, cutting the work substrate along cutting lines at an outer side of the protective films of each cell area to form a preliminary display panel, grinding side surfaces of the preliminary display panel, and removing the protective films from each ground preliminary display panel to form the display panel.
    Type: Grant
    Filed: November 18, 2021
    Date of Patent: February 13, 2024
    Assignee: SAMSUNG DISPLAY CO., LTD.
    Inventors: Younghoon Lee, Youngji Kim, Yiseul Um, Wonje Jo, Young Seo Choi, Dongwon Han
  • Patent number: 11844264
    Abstract: Systems and methods are described for a display panel and a method of manufacturing the display panel. The systems and methods may provide for a substrate having a first surface and a second surface that face each other, a display unit including an organic light-emitting device arranged on the first surface of the substrate; and a thin-film encapsulation layer arranged on the display unit to shield the display unit, wherein an edge of the first surface or an edge of the second surface are inclined with respect to the first surface or the second surface. The inclined surfaces are designed to prevent damage to the display due to fine cracks during the manufacturing process as the display panel is trimmed or cut from a single base member. A display panel having improved strength characteristics may be manufactured, as well.
    Type: Grant
    Filed: October 5, 2022
    Date of Patent: December 12, 2023
    Assignee: SAMSUNG DISPLAY CO., LTD.
    Inventors: Wonje Jo, Youngji Kim, Yiseul Um, Younghoon Lee, Jiwon Jung, Youngseo Choi, Dongwon Han
  • Patent number: 11740499
    Abstract: A display device includes: a display module including a first area and a second area at least partially surrounding the first area in a plan view; an external member disposed on the display module; and an adhesive layer configured to couple the display module to the external member, wherein a coupling strength between the second area and the adhesive layer is greater than a coupling strength between the first area and the adhesive layer.
    Type: Grant
    Filed: November 4, 2021
    Date of Patent: August 29, 2023
    Assignee: SAMSUNG DISPLAY CO., LTD.
    Inventors: Jiwon Jung, Youngji Kim, Yiseul Um, Younghoon Lee, Wonje Jo
  • Patent number: 11616217
    Abstract: A method of manufacturing a display panel includes forming a unit panel which includes a display unit provided on a substrate. The substrate of the unit panel is cut out in a form of a closed loop having a straight line portion and a curve portion that are connected to each other. The cutting out of the substrate of the unit panel includes cutting the straight line portion by a first cutting process using a first tool and cutting the curve portion by a second cutting process using a second tool that is different from the first tool.
    Type: Grant
    Filed: December 18, 2019
    Date of Patent: March 28, 2023
    Assignee: SAMSUNG DISPLAY CO., LTD.
    Inventors: Wonje Jo, Youngji Kim, Yiseul Um, Younghoon Lee, Youngseo Choi, Dongwon Han
  • Publication number: 20230024760
    Abstract: Systems and methods are described for a display panel and a method of manufacturing the display panel. The systems and methods may provide for a substrate having a first surface and a second surface that face each other, a display unit including an organic light-emitting device arranged on the first surface of the substrate; and a thin-film encapsulation layer arranged on the display unit to shield the display unit, wherein an edge of the first surface or an edge of the second surface are inclined with respect to the first surface or the second surface. The inclined surfaces are designed to prevent damage to the display due to fine cracks during the manufacturing process as the display panel is trimmed or cut from a single base member. A display panel having improved strength characteristics may be manufactured, as well.
    Type: Application
    Filed: October 5, 2022
    Publication date: January 26, 2023
    Inventors: WONJE JO, YOUNGJI KIM, YISEUL UM, YOUNGHOON LEE, JIWON JUNG, YOUNGSEO CHOI, DONGWON HAN
  • Patent number: 11495771
    Abstract: Systems and methods are described for a display panel and a method of manufacturing the display panel. The systems and methods may provide for a substrate having a first surface and a second surface that face each other, a display unit including an organic light-emitting device arranged on the first surface of the substrate; and a thin-film encapsulation layer arranged on the display unit to shield the display unit, wherein an edge of the first surface or an edge of the second surface are inclined with respect to the first surface or the second surface. The inclined surfaces are designed to prevent damage to the display due to fine cracks during the manufacturing process as the display panel is trimmed or cut from a single base member. A display panel having improved strength characteristics may be manufactured, as well.
    Type: Grant
    Filed: January 8, 2020
    Date of Patent: November 8, 2022
    Assignee: SAMSUNG DISPLAY CO., LTD.
    Inventors: Wonje Jo, Youngji Kim, Yiseul Um, Younghoon Lee, Jiwon Jung, Youngseo Choi, Dongwon Han
  • Publication number: 20220077437
    Abstract: A method of manufacturing a display panel includes preparing a work substrate that includes a mother substrate that has a plurality of cell areas, a light emitting element layer formed in each of the cell areas, and an encapsulation layer formed on each cell area, disposing a plurality of protective films in the cell areas, respectively, that cover the light emitting element layer and the encapsulation layer, cutting the work substrate along cutting lines at an outer side of the protective films of each cell area to form a preliminary display panel, grinding side surfaces of the preliminary display panel, and removing the protective films from each ground preliminary display panel to form the display panel.
    Type: Application
    Filed: November 18, 2021
    Publication date: March 10, 2022
    Inventors: YOUNGHOON LEE, Youngji Kim, Yiseul Um, Wonje Jo, Young Seo Choi, Dongwon Han
  • Publication number: 20220057665
    Abstract: A display device includes: a display module including a first area and a second area at least partially surrounding the first area in a plan view; an external member disposed on the display module; and an adhesive layer configured to couple the display module to the external member, wherein a coupling strength between the second area and the adhesive layer is greater than a coupling strength between the first area and the adhesive layer.
    Type: Application
    Filed: November 4, 2021
    Publication date: February 24, 2022
    Inventors: JIWON JUNG, YOUNGJI KIM, Yiseul UM, Younghoon LEE, Wonje JO
  • Patent number: 11205769
    Abstract: A method of manufacturing a display panel includes preparing a work substrate that includes a mother substrate that has a plurality of cell areas, a light emitting element layer formed in each of the cell areas, and an encapsulation layer formed on each cell area, disposing a plurality of protective films in the cell areas, respectively, that cover the light emitting element layer and the encapsulation layer, cutting the work substrate along cutting lines at an outer side of the protective films of each cell area to form a preliminary display panel, grinding side surfaces of the preliminary display panel, and removing the protective films from each ground preliminary display panel to form the display panel.
    Type: Grant
    Filed: April 22, 2020
    Date of Patent: December 21, 2021
    Assignee: SAMSUNG DISPLAY CO., LTD.
    Inventors: Younghoon Lee, Youngji Kim, Yiseul Um, Wonje Jo, Young Seo Choi, Dongwon Han
  • Patent number: 11199737
    Abstract: A display device includes: a display module including a first area and a second area at least partially surrounding the first area in a plan view; an external member disposed on the display module; and an adhesive layer configured to couple the display module to the external member, wherein a coupling strength between the second area and the adhesive layer is greater than a coupling strength between the first area and the adhesive layer.
    Type: Grant
    Filed: February 13, 2020
    Date of Patent: December 14, 2021
    Assignee: SAMSUNG DISPLAY CO., LTD.
    Inventors: Jiwon Jung, Youngji Kim, Yiseul Um, Younghoon Lee, Wonje Jo
  • Publication number: 20200403189
    Abstract: A method of manufacturing a display panel includes preparing a work substrate that includes a mother substrate that has a plurality of cell areas, a light emitting element layer formed in each of the cell areas, and an encapsulation layer formed on each cell area, disposing a plurality of protective films in the cell areas, respectively, that cover the light emitting element layer and the encapsulation layer, cutting the work substrate along cutting lines at an outer side of the protective films of each cell area to form a preliminary display panel, grinding side surfaces of the preliminary display panel, and removing the protective films from each ground preliminary display panel to form the display panel.
    Type: Application
    Filed: April 22, 2020
    Publication date: December 24, 2020
    Inventors: Younghoon LEE, Youngji KIM, Yiseul UM, Wonje JO, Young Seo CHOI, Dongwon HAN
  • Publication number: 20200295297
    Abstract: Systems and methods are described for a display panel and a method of manufacturing the display panel. The systems and methods may provide for a substrate having a first surface and a second surface that face each other, a display unit including an organic light-emitting device arranged on the first surface of the substrate; and a thin-film encapsulation layer arranged on the display unit to shield the display unit, wherein an edge of the first surface or an edge of the second surface are inclined with respect to the first surface or the second surface. The inclined surfaces are designed to prevent damage to the display due to fine cracks during the manufacturing process as the display panel is trimmed or cut from a single base member. A display panel having improved strength characteristics may be manufactured, as well.
    Type: Application
    Filed: January 8, 2020
    Publication date: September 17, 2020
    Inventors: WONJE JO, YOUNGJI KIM, YISEUL UM, YOUNGHOON LEE, JIWON JUNG, YOUNGSEO CHOI, DONGWON HAN
  • Publication number: 20200264465
    Abstract: A display device includes: a display module including a first area and a second area at least partially surrounding the first area in a plan view; an external member disposed on the display module; and an adhesive layer configured to couple the display module to the external member, wherein a coupling strength between the second area and the adhesive layer is greater than a coupling strength between the first area and the adhesive layer.
    Type: Application
    Filed: February 13, 2020
    Publication date: August 20, 2020
    Inventors: Jiwon Jung, Youngji Kim, Yiseul Um, Younghoon Lee, Wonje Jo
  • Publication number: 20200266395
    Abstract: A method of manufacturing a display panel includes forming a unit panel which includes a display unit provided on a substrate. The substrate of the unit panel is cut out in a form of a closed loop having a straight line portion and a curve portion that are connected to each other. The cutting out of the substrate of the unit panel includes cutting the straight line portion by a first cutting process using a first tool and cutting the curve portion by a second cutting process using a second tool that is different from the first tool.
    Type: Application
    Filed: December 18, 2019
    Publication date: August 20, 2020
    Inventors: Wonje JO, Youngji KIM, Yiseul UM, Younghoon LEE, Youngseo CHOI, Dongwon HAN