Patents by Inventor Yong Tack Kim

Yong Tack 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: 11925051
    Abstract: A display device includes: a first base having a display area; light-emitting elements on the first base; and an encapsulation layer over the light-emitting elements. The encapsulation layer includes: a first inorganic layer; an organic layer on the first inorganic layer; and a second inorganic layer on the organic layer. The first inorganic layer includes: a first buffer layer on the light-emitting elements; a first barrier layer on the first buffer layer; a first porous layer on the first barrier layer; a second barrier layer on the first porous layer; and a second buffer layer on the second barrier layer. A refractive index of the first buffer layer, the first barrier layer, and the first porous layer are different from one another, and the refractive index of the first porous layer is smaller than the refractive index of the first buffer layer and the first barrier layer.
    Type: Grant
    Filed: May 7, 2021
    Date of Patent: March 5, 2024
    Assignee: Samsung Display Co., Ltd.
    Inventors: Yong Tack Kim, Eung Seok Park, Jae Hyuk Lee, Yoon Hyeung Cho, Dong Uk Choi
  • Patent number: 11895861
    Abstract: A display device includes a base; a light emitting element on the base; a capping layer on the light emitting element; a thin-film encapsulation layer including a first inorganic layer on the capping layer, an organic layer on the first inorganic layer, and a second inorganic layer on the organic layer; and a wavelength conversion pattern on the thin-film encapsulation layer and overlapping the light emitting element, wherein the first inorganic layer includes two sub-inorganic layers having different refractive indices.
    Type: Grant
    Filed: April 2, 2021
    Date of Patent: February 6, 2024
    Assignee: Samsung Display Co., Ltd.
    Inventors: Yong Tack Kim, Cheol Eon Park, Hak Joong Yong, Yun Kyu Lee, Yoon Hyeung Cho
  • Patent number: 11818937
    Abstract: An organic light emitting display is provided. The organic light emitting display includes a first base substrate; a plurality of organic light emitting diodes disposed on the first base substrate; an encapsulation layer disposed on the organic light emitting diodes; and a plurality of first color conversion filters disposed on the encapsulation layer. The encapsulation layer includes: a first sub-inorganic layer disposed on the organic light emitting diodes; a second sub-inorganic layer disposed on the first sub-inorganic layer and having a refractive index different from that of the first sub-inorganic layer; an organic layer disposed on the second sub-inorganic layer; and a third sub-inorganic layer disposed on the organic layer.
    Type: Grant
    Filed: December 6, 2021
    Date of Patent: November 14, 2023
    Assignee: Samsung Display Co., Ltd.
    Inventors: Yo Han Kim, Yong Tack Kim, Yoon Hyeung Cho, Jong Jin Park, Deok Chan Yoon, Yun Kyu Lee, Dong Uk Choi
  • Publication number: 20230060021
    Abstract: A display device includes a first substrate; light-emitting elements disposed on the first substrate; an encapsulation film covering the light-emitting elements; a second substrate facing the first substrate; a first outermost film disposed on the second substrate to face the encapsulation film and including AOXNY (where A is a metal or non-metal element and X>Y); and a filler material disposed between the encapsulation film and the first outermost film and placed in direct contact with the first outermost film.
    Type: Application
    Filed: October 17, 2022
    Publication date: February 23, 2023
    Inventors: Jung Hyun SON, Yo Han KIM, Yong Tack KIM, Byoung Duk LEE, Yoon Hyeung CHO
  • Patent number: 11489021
    Abstract: A color conversion substrate includes a base including a first light transmitting region and a light shielding region around the first light transmitting region; a first color filter on the base in the first light transmitting region; a first wavelength conversion pattern in a first microcavity on the first color filter including a first wavelength shifter; and a light shielding member on the base and in the light shielding region. The first microcavity includes an open side, and the light shielding member directly contacts the first wavelength conversion pattern at the open side of the first microcavity.
    Type: Grant
    Filed: January 28, 2020
    Date of Patent: November 1, 2022
    Assignee: Samsung Display Co., Ltd.
    Inventors: Yoon Hyeung Cho, Yo Han Kim, Byoung Duk Lee, Yong Tack Kim, Jong Jin Park, Yun Ah Chung, Young Cheol Joo
  • Patent number: 11476311
    Abstract: A display device includes a first substrate; light-emitting elements disposed on the first substrate; an encapsulation film covering the light-emitting elements; a second substrate facing the first substrate; a first outermost film disposed on the second substrate to face the encapsulation film and including AOXNY (where A is a metal or non-metal element and X>Y); and a filler material disposed between the encapsulation film and the first outermost film and placed in direct contact with the first outermost film.
    Type: Grant
    Filed: October 7, 2019
    Date of Patent: October 18, 2022
    Assignee: Samsung Display Co., Ltd.
    Inventors: Jung Hyun Son, Yo Han Kim, Yong Tack Kim, Byoung Duk Lee, Yoon Hyeung Cho
  • Publication number: 20220199948
    Abstract: A display device includes a substrate; a light-emitting element layer on the substrate; a first thin-film encapsulation layer that is on the light-emitting element layer, has an upper surface conforming an upper surface of the light-emitting element layer, and includes a recessed portion; a bank layer on the first thin-film encapsulation layer and having an opening overlapping the recessed portion; a wavelength conversion layer in the opening on the first thin-film encapsulation layer and at least partially in the recessed portion; a first inorganic layer on the bank layer and the wavelength conversion layer; an organic layer on the first inorganic layer; and a second inorganic layer on the organic layer.
    Type: Application
    Filed: September 3, 2021
    Publication date: June 23, 2022
    Inventors: Myung Chul YEO, Yong Tack KIM, Eung Seok PARK, Hee Wook YOON, Yoon Hyeung CHO
  • Patent number: 11342525
    Abstract: A display device is provided. The display device includes a plurality of pixels; a first base; an organic light emitting element on the first base and in each of the pixels; a second base facing the first base; and a filling pattern layer between the organic light emitting elements and the second base, the filling pattern layer including a first pattern portion and a second pattern portion alternately arranged along a same direction in a plan view, wherein the first pattern portion is in each of the pixels, the second pattern portion is at a boundary of each of the pixels and contacts the first pattern portion, and a refractive index of the second pattern portion is smaller than that of the first pattern portion.
    Type: Grant
    Filed: September 25, 2019
    Date of Patent: May 24, 2022
    Assignee: Samsung Display Co., Ltd.
    Inventors: Yo Han Kim, Yoon Hyeung Cho, Yong Tack Kim, Jong Jin Park, Seung In Baek, Yun Ah Chung, Young Cheol Joo
  • Publication number: 20220093691
    Abstract: An organic light emitting display is provided. The organic light emitting display includes a first base substrate; a plurality of organic light emitting diodes disposed on the first base substrate; an encapsulation layer disposed on the organic light emitting diodes; and a plurality of first color conversion filters disposed on the encapsulation layer. The encapsulation layer includes: a first sub-inorganic layer disposed on the organic light emitting diodes; a second sub-inorganic layer disposed on the first sub-inorganic layer and having a refractive index different from that of the first sub-inorganic layer; an organic layer disposed on the second sub-inorganic layer; and a third sub-inorganic layer disposed on the organic layer.
    Type: Application
    Filed: December 6, 2021
    Publication date: March 24, 2022
    Inventors: Yo Han KIM, Yong Tack KIM, Yoon Hyeung CHO, Jong Jin PARK, Deok Chan YOON, Yun Kyu LEE, Dong Uk CHOI
  • Publication number: 20220059799
    Abstract: A display device includes: a first base having a display area; light-emitting elements on the first base; and an encapsulation layer over the light-emitting elements. The encapsulation layer includes: a first inorganic layer; an organic layer on the first inorganic layer; and a second inorganic layer on the organic layer. The first inorganic layer includes: a first buffer layer on the light-emitting elements; a first barrier layer on the first buffer layer; a first porous layer on the first barrier layer; a second barrier layer on the first porous layer; and a second buffer layer on the second barrier layer. A refractive index of the first buffer layer, the first barrier layer, and the first porous layer are different from one another, and the refractive index of the first porous layer is smaller than the refractive index of the first buffer layer and the first barrier layer.
    Type: Application
    Filed: May 7, 2021
    Publication date: February 24, 2022
    Inventors: Yong Tack KIM, Eung Seok PARK, Jae Hyuk LEE, Yoon Hyeung CHO, Dong Uk CHOI
  • Publication number: 20210399260
    Abstract: A display device includes a base; a light emitting element on the base; a capping layer on the light emitting element; a thin-film encapsulation layer including a first inorganic layer on the capping layer, an organic layer on the first inorganic layer, and a second inorganic layer on the organic layer; and a wavelength conversion pattern on the thin-film encapsulation layer and overlapping the light emitting element, wherein the first inorganic layer includes two sub-inorganic layers having different refractive indices.
    Type: Application
    Filed: April 2, 2021
    Publication date: December 23, 2021
    Inventors: Yong Tack KIM, Cheol Eon PARK, Hak Joong YONG, Yun Kyu LEE, Yoon Hyeung CHO
  • Patent number: 11195884
    Abstract: An organic light emitting display is provided. The organic light emitting display includes a first base substrate; a plurality of organic light emitting diodes disposed on the first base substrate; an encapsulation layer disposed on the organic light emitting diodes; and a plurality of first color conversion filters disposed on the encapsulation layer. The encapsulation layer includes: a first sub-inorganic layer disposed on the organic light emitting diodes; a second sub-inorganic layer disposed on the first sub-inorganic layer and having a refractive index different from that of the first sub-inorganic layer; an organic layer disposed on the second sub-inorganic layer; and a third sub-inorganic layer disposed on the organic layer.
    Type: Grant
    Filed: December 6, 2019
    Date of Patent: December 7, 2021
    Assignee: Samsung Display Co., Ltd.
    Inventors: Yo Han Kim, Yong Tack Kim, Yoon Hyeung Cho, Jong Jin Park, Deok Chan Yoon, Yun Kyu Lee, Dong Uk Choi
  • Publication number: 20210376291
    Abstract: A display device includes a first base on which a display area and a non-display area are defined; a first support member disposed on the first base and located in the non-display area; a light emitting element disposed on the first base and located in the display area; an encapsulation layer which disposed on the light emitting element; a second base disposed on the encapsulation layer; a color filter disposed between the second base and the encapsulation layer, where the color filter overlaps the light emitting element; a wavelength conversion pattern disposed on the color filter; and a sealing member disposed between the first base and the second base and located in the non-display area, where the sealing member is located between the display area and the first support member and overlaps the encapsulation layer.
    Type: Application
    Filed: March 16, 2021
    Publication date: December 2, 2021
    Inventors: Cheol Eon PARK, Eung Seok PARK, Yong Tack KIM
  • Publication number: 20200295090
    Abstract: A color conversion substrate includes a base including a first light transmitting region and a light shielding region around the first light transmitting region; a first color filter on the base in the first light transmitting region; a first wavelength conversion pattern in a first microcavity on the first color filter including a first wavelength shifter; and a light shielding member on the base and in the light shielding region. The first microcavity includes an open side, and the light shielding member directly contacts the first wavelength conversion pattern at the open side of the first microcavity.
    Type: Application
    Filed: January 28, 2020
    Publication date: September 17, 2020
    Inventors: Yoon Hyeung CHO, Yo Han KIM, Byoung Duk LEE, Yong Tack KIM, Jong Jin PARK, Yun Ah CHUNG, Young Cheol JOO
  • Publication number: 20200258946
    Abstract: An organic light emitting display is provided. The organic light emitting display includes a first base substrate; a plurality of organic light emitting diodes disposed on the first base substrate; an encapsulation layer disposed on the organic light emitting diodes; and a plurality of first color conversion filters disposed on the encapsulation layer. The encapsulation layer includes: a first sub-inorganic layer disposed on the organic light emitting diodes; a second sub-inorganic layer disposed on the first sub-inorganic layer and having a refractive index different from that of the first sub-inorganic layer; an organic layer disposed on the second sub-inorganic layer; and a third sub-inorganic layer disposed on the organic layer.
    Type: Application
    Filed: December 6, 2019
    Publication date: August 13, 2020
    Inventors: Yo Han KIM, Yong Tack KIM, Yoon Hyeung CHO, Jong Jin PARK, Deok Chan YOON, Yun Kyu LEE, Dong Uk CHOI
  • Publication number: 20200161579
    Abstract: A display device is provided. The display device includes a plurality of pixels; a first base; an organic light emitting element on the first base and in each of the pixels; a second base facing the first base; and a filling pattern layer between the organic light emitting elements and the second base, the filling pattern layer including a first pattern portion and a second pattern portion alternately arranged along a same direction in a plan view, wherein the first pattern portion is in each of the pixels, the second pattern portion is at a boundary of each of the pixels and contacts the first pattern portion, and a refractive index of the second pattern portion is smaller than that of the first pattern portion.
    Type: Application
    Filed: September 25, 2019
    Publication date: May 21, 2020
    Inventors: Yo Han KIM, Yoon Hyeung CHO, Yong Tack KIM, Jong Jin PARK, Seung In BAEK, Yun Ah CHUNG, Young Cheol JOO
  • Publication number: 20200152705
    Abstract: A display device includes a first substrate; light-emitting elements disposed on the first substrate; an encapsulation film covering the light-emitting elements; a second substrate facing the first substrate; a first outermost film disposed on the second substrate to face the encapsulation film and including AOXNY (where A is a metal or non-metal element and X>Y); and a filler material disposed between the encapsulation film and the first outermost film and placed in direct contact with the first outermost film.
    Type: Application
    Filed: October 7, 2019
    Publication date: May 14, 2020
    Inventors: Jung Hyun SON, Yo Han KIM, Yong Tack KIM, Byoung Duk LEE, Yoon Hyeung CHO
  • Patent number: 9741776
    Abstract: A method for manufacturing an organic light emitting diode display includes forming a thin-film transistor on a substrate, forming a protection layer by using a deposition method on an entire surface of the substrate, and forming an organic light emitting element on the protection layer. Forming the protection layer includes forming a first protection layer, a surface thereof including a first wrinkle, and forming a second protection layer on the first protection layer, a surface thereof including a second wrinkle. A first modulus value of the first protection layer is less than a second modulus value of the second protection layer by at least 300 MPa.
    Type: Grant
    Filed: April 12, 2016
    Date of Patent: August 22, 2017
    Assignee: Samsung Display Co., Ltd.
    Inventors: Jae Heung Ha, Yong Tack Kim, Jong Woo Kim, Ji Young Moon, Min Ho Oh, Seung Jae Lee, Yoon Hyeung Cho
  • Publication number: 20170084677
    Abstract: A method for manufacturing an organic light emitting diode display includes forming a thin-film transistor on a substrate, forming a protection layer by using a deposition method on an entire surface of the substrate, and forming an organic light emitting element on the protection layer. Forming the protection layer includes forming a first protection layer, a surface thereof including a first wrinkle, and forming a second protection layer on the first protection layer, a surface thereof including a second wrinkle. A first modulus value of the first protection layer is less than a second modulus value of the second protection layer by at least 300 MPa.
    Type: Application
    Filed: April 12, 2016
    Publication date: March 23, 2017
    Inventors: Jae Heung HA, Yong Tack Kim, Jong Woo Kim, Ji Young Moon, Min Ho Oh, Seung Jae Lee, Yoon Hyeung Cho
  • Patent number: 9093651
    Abstract: In an aspect, a composition including an acrylate monomer, and aromatic aryl amine compound, an organic light emitting display apparatus including the composition and a method of manufacturing an organic light emitting display apparatus including the composition are provided.
    Type: Grant
    Filed: July 14, 2014
    Date of Patent: July 28, 2015
    Assignee: Samsung Display Co., Ltd.
    Inventors: Byoung-Duk Lee, Yong-Tack Kim, Jong-Woo Kim, Min-Ho Oh, So-Young Lee, Jin-Hwan Jeon, Yun-Ah Chung, Yoon-Hyeung Cho, Yong-Chan Ju