Patents by Inventor Yong-Tak Kim

Yong-Tak 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).

  • Publication number: 20230397454
    Abstract: Provided is an organic electroluminescent display device, including a substrate, an organic light-emitting device on the substrate, and an encapsulation layer formed on the organic light-emitting device and the substrate. The encapsulation layer includes an inorganic layer and a polymer organic layer alternatingly stacked with an intermediate layer formed of a first organic monomer between the inorganic layer and the polymer organic layer, and one surface of the intermediate layer is bonded to the inorganic layer through bonding sites on a surface of the inorganic layer and another surface of the intermediate layer is bonded to the organic layer by polymerization.
    Type: Application
    Filed: August 21, 2023
    Publication date: December 7, 2023
    Inventors: Min-Ho Oh, Yoon-Hyeung Cho, Yong-Tak Kim, So-Young Lee, Jong-Woo Kim, Ji-Young Moon
  • Patent number: 11778854
    Abstract: Provided is an organic electroluminescent display device, including a substrate, an organic light-emitting device on the substrate, and an encapsulation layer formed on the organic light-emitting device and the substrate. The encapsulation layer includes an inorganic layer and a polymer organic layer alternatingly stacked with an intermediate layer formed of a first organic monomer between the inorganic layer and the polymer organic layer, and one surface of the intermediate layer is bonded to the inorganic layer through bonding sites on a surface of the inorganic layer and another surface of the intermediate layer is bonded to the organic layer by polymerization.
    Type: Grant
    Filed: October 14, 2022
    Date of Patent: October 3, 2023
    Assignee: Samsung Display Co., Ltd.
    Inventors: Min-Ho Oh, Yoon-Hyeung Cho, Yong-Tak Kim, So-Young Lee, Jong-Woo Kim, Ji-Young Moon
  • Publication number: 20230060725
    Abstract: Provided is an organic electroluminescent display device, including a substrate, an organic light-emitting device on the substrate, and an encapsulation layer formed on the organic light-emitting device and the substrate. The encapsulation layer includes an inorganic layer and a polymer organic layer alternatingly stacked with an intermediate layer formed of a first organic monomer between the inorganic layer and the polymer organic layer, and one surface of the intermediate layer is bonded to the inorganic layer through bonding sites on a surface of the inorganic layer and another surface of the intermediate layer is bonded to the organic layer by polymerization.
    Type: Application
    Filed: October 14, 2022
    Publication date: March 2, 2023
    Inventors: Min-Ho Oh, Yoon-Hyeung Cho, Yong-Tak Kim, So-Young Lee, Jong-Woo Kim, Ji-Young Moon
  • Patent number: 11489142
    Abstract: Provided is an organic electroluminescent display device, including a substrate, an organic light-emitting device on the substrate, and an encapsulation layer formed on the organic light-emitting device and the substrate. The encapsulation layer includes an inorganic layer and a polymer organic layer alternatingly stacked with an intermediate layer formed of a first organic monomer between the inorganic layer and the polymer organic layer, and one surface of the intermediate layer is bonded to the inorganic layer through bonding sites on a surface of the inorganic layer and another surface of the intermediate layer is bonded to the organic layer by polymerization.
    Type: Grant
    Filed: December 30, 2021
    Date of Patent: November 1, 2022
    Assignee: Samsung Display Co., Ltd.
    Inventors: Min-Ho Oh, Yoon-Hyeung Cho, Yong-Tak Kim, So-Young Lee, Jong-Woo Kim, Ji-Young Moon
  • Publication number: 20220149332
    Abstract: Provided is an organic electroluminescent display device, including a substrate, an organic light-emitting device on the substrate, and an encapsulation layer formed on the organic light-emitting device and the substrate. The encapsulation layer includes an inorganic layer and a polymer organic layer alternatingly stacked with an intermediate layer formed of a first organic monomer between the inorganic layer and the polymer organic layer, and one surface of the intermediate layer is bonded to the inorganic layer through bonding sites on a surface of the inorganic layer and another surface of the intermediate layer is bonded to the organic layer by polymerization.
    Type: Application
    Filed: December 30, 2021
    Publication date: May 12, 2022
    Inventors: Min-Ho Oh, Yoon-Hyeung Cho, Yong-Tak Kim, So-Young Lee, Jong-Woo Kim, Ji-Young Moon
  • Patent number: 11245098
    Abstract: Provided is an organic electroluminescent display device, including a substrate, an organic light-emitting device on the substrate, and an encapsulation layer formed on the organic light-emitting device and the substrate. The encapsulation layer includes an inorganic layer and a polymer organic layer alternatingly stacked with an intermediate layer formed of a first organic monomer between the inorganic layer and the polymer organic layer, and one surface of the intermediate layer is bonded to the inorganic layer through bonding sites on a surface of the inorganic layer and another surface of the intermediate layer is bonded to the organic layer by polymerization.
    Type: Grant
    Filed: February 8, 2021
    Date of Patent: February 8, 2022
    Assignee: Samsung Display Co., Ltd.
    Inventors: Min-Ho Oh, Yoon-Hyeung Cho, Yong-Tak Kim, So-Young Lee, Jong-Woo Kim, Ji-Young Moon
  • Publication number: 20210305536
    Abstract: An organic light-emitting display apparatus is disclosed. In one embodiment, the display apparatus includes i) a substrate and ii) an organic light-emitting device formed on the substrate, the organic light-emitting device including a stack structure including a first electrode, an organic light-emitting layer, and a second electrode. The apparatus may further include a sealing layer formed on the substrate so as to cover the organic light-emitting device, the sealing layer including an inorganic layer and a porous layer interposed between the sealing layer and the organic light-emitting device. One embodiment can reduce a stress due to a sealing inorganic layer so as to maintain characteristics for a long time in a severe environment and not affect an organic light-emitting device.
    Type: Application
    Filed: June 11, 2021
    Publication date: September 30, 2021
    Inventors: Min-Ho OH, Yoon-Hyeung CHO, Byoung-Duk LEE, Yong-Tak KIM, So-Young LEE, Yun-Ah CHUNG
  • Publication number: 20210184174
    Abstract: Provided is an organic electroluminescent display device, including a substrate, an organic light-emitting device on the substrate, and an encapsulation layer formed on the organic light-emitting device and the substrate. The encapsulation layer includes an inorganic layer and a polymer organic layer alternatingly stacked with an intermediate layer formed of a first organic monomer between the inorganic layer and the polymer organic layer, and one surface of the intermediate layer is bonded to the inorganic layer through bonding sites on a surface of the inorganic layer and another surface of the intermediate layer is bonded to the organic layer by polymerization.
    Type: Application
    Filed: February 8, 2021
    Publication date: June 17, 2021
    Inventors: Min-Ho Oh, Yoon-Hyeung Cho, Yong-Tak Kim, So-Young Lee, Jong-Woo Kim, Ji-Young Moon
  • Patent number: 11038144
    Abstract: An organic light-emitting display apparatus is disclosed. In one embodiment, the display apparatus includes i) a substrate and ii) an organic light-emitting device formed on the substrate, the organic light-emitting device including a stack structure including a first electrode, an organic light-emitting layer, and a second electrode. The apparatus may further include a sealing layer formed on the substrate so as to cover the organic light-emitting device, the sealing layer including an inorganic layer and a porous layer interposed between the sealing layer and the organic light-emitting device. One embodiment can reduce a stress due to a sealing inorganic layer so as to maintain characteristics for a long time in a severe environment and not affect an organic light-emitting device.
    Type: Grant
    Filed: October 1, 2014
    Date of Patent: June 15, 2021
    Assignee: Samsung Display Co., Ltd.
    Inventors: Min-Ho Oh, Yoon-Hyeung Cho, Byoung-Duk Lee, Yong-Tak Kim, So-Young Lee, Yun-Ah Chung
  • Patent number: 10944076
    Abstract: Provided is an organic electroluminescent display device, including a substrate, an organic light-emitting device on the substrate, and an encapsulation layer formed on the organic light-emitting device and the substrate. The encapsulation layer includes an inorganic layer and a polymer organic layer alternatingly stacked with an intermediate layer formed of a first organic monomer between the inorganic layer and the polymer organic layer, and one surface of the intermediate layer is bonded to the inorganic layer through bonding sites on a surface of the inorganic layer and another surface of the intermediate layer is bonded to the organic layer by polymerization.
    Type: Grant
    Filed: April 1, 2020
    Date of Patent: March 9, 2021
    Assignee: Samsung Display Co., Ltd.
    Inventors: Min-Ho Oh, Yoon-Hyeung Cho, Yong-Tak Kim, So-Young Lee, Jong-Woo Kim, Ji-Young Moon
  • Publication number: 20200227684
    Abstract: Provided is an organic electroluminescent display device, including a substrate, an organic light-emitting device on the substrate, and an encapsulation layer formed on the organic light-emitting device and the substrate. The encapsulation layer includes an inorganic layer and a polymer organic layer alternatingly stacked with an intermediate layer formed of a first organic monomer between the inorganic layer and the polymer organic layer, and one surface of the intermediate layer is bonded to the inorganic layer through bonding sites on a surface of the inorganic layer and another surface of the intermediate layer is bonded to the organic layer by polymerization.
    Type: Application
    Filed: April 1, 2020
    Publication date: July 16, 2020
    Inventors: Min-Ho Oh, Yoon-Hyeung Cho, Yong-Tak Kim, So-Young Lee, Jong-Woo Kim, Ji-Young Moon
  • Patent number: 10680206
    Abstract: A display apparatus including a substrate, a display panel on the substrate, and an encapsulation film sealing the display panel. The encapsulation film includes at least one organic layer and/or at least one inorganic layer and at least one pair of conductive layers.
    Type: Grant
    Filed: May 10, 2018
    Date of Patent: June 9, 2020
    Assignees: Samsung Display Co., Ltd., Seoul National University R&DB Foundation
    Inventors: Min-Ho Oh, Yoon-Hyeung Cho, Yong-Tak Kim, So-Young Lee, Jong-Woo Kim, Ji-Young Moon, Hyeong-Joon Kim, Sang-Hyun Park, Hyuk-Jin Kim, Seung-Ha Oh
  • Publication number: 20200176534
    Abstract: An organic light-emitting display apparatus and a manufacturing method thereof. The organic light-emitting display apparatus includes a substrate, a display unit arranged on the substrate, a dam unit arranged at a periphery of the display unit and on the substrate and an encapsulating layer to encapsulate the display unit, wherein the encapsulating layer includes an organic film covering the display unit, and an inorganic film covering the organic film and the dam unit, and wherein a hardness of the dam unit is lower than that of the inorganic film. According to this, lateral moisture-proof characteristics of the organic light-emitting display apparatus are improved.
    Type: Application
    Filed: February 4, 2020
    Publication date: June 4, 2020
    Inventors: Min-Ho Oh, Yoon-Hyeung Cho, Yong-Tak Kim, So-Young Lee, Jong-Woo Kim, Ji-Young Moon
  • Patent number: 10644264
    Abstract: Provided is an organic electroluminescent display device, including a substrate, an organic light-emitting device on the substrate, and an encapsulation layer formed on the organic light-emitting device and the substrate. The encapsulation layer includes an inorganic layer and a polymer organic layer alternatingly stacked with an intermediate layer formed of a first organic monomer between the inorganic layer and the polymer organic layer, and one surface of the intermediate layer is bonded to the inorganic layer through bonding sites on a surface of the inorganic layer and another surface of the intermediate layer is bonded to the organic layer by polymerization.
    Type: Grant
    Filed: April 19, 2019
    Date of Patent: May 5, 2020
    Assignee: Samsung Display Co., Ltd.
    Inventors: Min-Ho Oh, Yoon-Hyeung Cho, Yong-Tak Kim, So-Young Lee, Jong-Woo Kim, Ji-Young Moon
  • Patent number: 10593747
    Abstract: An organic light-emitting display apparatus and a manufacturing method thereof. The organic light-emitting display apparatus includes a substrate, a display unit arranged on the substrate, a dam unit arranged at a periphery of the display unit and on the substrate and an encapsulating layer to encapsulate the display unit, wherein the encapsulating layer includes an organic film covering the display unit, and an inorganic film covering the organic film and the dam unit, and wherein a hardness of the dam unit is lower than that of the inorganic film. According to this, lateral moisture-proof characteristics of the organic light-emitting display apparatus are improved.
    Type: Grant
    Filed: March 15, 2019
    Date of Patent: March 17, 2020
    Assignee: Samsung Display Co., Ltd.
    Inventors: Min-Ho Oh, Yoon-Hyeung Cho, Yong-Tak Kim, So-Young Lee, Jong-Woo Kim, Ji-Young Moon
  • Patent number: 10559647
    Abstract: An organic light-emitting display apparatus and a manufacturing method thereof. The organic light-emitting display apparatus includes a substrate, a display unit arranged on the substrate, a dam unit arranged at a periphery of the display unit and on the substrate and an encapsulating layer to encapsulate the display unit, wherein the encapsulating layer includes an organic film covering the display unit, and an inorganic film covering the organic film and the dam unit, and wherein a hardness of the dam unit is lower than that of the inorganic film. According to this, lateral moisture-proof characteristics of the organic light-emitting display apparatus are improved.
    Type: Grant
    Filed: March 15, 2019
    Date of Patent: February 11, 2020
    Assignee: Samsung Display Co., Ltd.
    Inventors: Min-Ho Oh, Yoon-Hyeung Cho, Yong-Tak Kim, So-Young Lee, Jong-Woo Kim, Ji-Young Moon
  • Publication number: 20190252642
    Abstract: Provided is an organic electroluminescent display device, including a substrate, an organic light-emitting device on the substrate, and an encapsulation layer formed on the organic light-emitting device and the substrate. The encapsulation layer includes an inorganic layer and a polymer organic layer alternatingly stacked with an intermediate layer formed of a first organic monomer between the inorganic layer and the polymer organic layer, and one surface of the intermediate layer is bonded to the inorganic layer through bonding sites on a surface of the inorganic layer and another surface of the intermediate layer is bonded to the organic layer by polymerization.
    Type: Application
    Filed: April 19, 2019
    Publication date: August 15, 2019
    Inventors: Min-Ho Oh, Yoon-Hyeung Cho, Yong-Tak Kim, So-Young Lee, Jong-Woo Kim, Ji-Young Moon
  • Publication number: 20190214454
    Abstract: An organic light-emitting display apparatus and a manufacturing method thereof. The organic light-emitting display apparatus includes a substrate, a display unit arranged on the substrate, a dam unit arranged at a periphery of the display unit and on the substrate and an encapsulating layer to encapsulate the display unit, wherein the encapsulating layer includes an organic film covering the display unit, and an inorganic film covering the organic film and the dam unit, and wherein a hardness of the dam unit is lower than that of the inorganic film. According to this, lateral moisture-proof characteristics of the organic light-emitting display apparatus are improved.
    Type: Application
    Filed: March 15, 2019
    Publication date: July 11, 2019
    Inventors: Min-Ho Oh, Yoon-Hyeung Cho, Yong-Tak Kim, So-Young Lee, Jong-Woo Kim, Ji-Young Moon
  • Patent number: 10297791
    Abstract: Provided is an organic electroluminescent display device, including a substrate, an organic light-emitting device on the substrate, and an encapsulation layer formed on the organic light-emitting device and the substrate. The encapsulation layer includes an inorganic layer and a polymer organic layer alternatingly stacked with an intermediate layer formed of a first organic monomer between the inorganic layer and the polymer organic layer, and one surface of the intermediate layer is bonded to the inorganic layer through bonding sites on a surface of the inorganic layer and another surface of the intermediate layer is bonded to the organic layer by polymerization.
    Type: Grant
    Filed: November 12, 2018
    Date of Patent: May 21, 2019
    Assignee: Samsung Display Co., Ltd.
    Inventors: Min-Ho Oh, Yoon-Hyeung Cho, Yong-Tak Kim, So-Young Lee, Jong-Woo Kim, Ji-Young Moon
  • Patent number: 10269892
    Abstract: An organic light-emitting display apparatus and a manufacturing method thereof. The organic light-emitting display apparatus includes a substrate, a display unit arranged on the substrate, a dam unit arranged at a periphery of the display unit and on the substrate and an encapsulating layer to encapsulate the display unit, wherein the encapsulating layer includes an organic film covering the display unit, and an inorganic film covering the organic film and the dam unit, and wherein a hardness of the dam unit is lower than that of the inorganic film. According to this, lateral moisture-proof characteristics of the organic light-emitting display apparatus are improved.
    Type: Grant
    Filed: December 8, 2017
    Date of Patent: April 23, 2019
    Assignee: Samsung Display Co., Ltd.
    Inventors: Min-Ho Oh, Yoon-Hyeung Cho, Yong-Tak Kim, So-Young Lee, Jong-Woo Kim, Ji-Young Moon