Patents by Inventor Yoon-Hyeung Cho

Yoon-Hyeung Cho 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: 10084149
    Abstract: An exemplary embodiment of the present disclosure provides a light emitting diode including: a first electrode; a second electrode configured to overlap the first electrode; an emission layer between the first electrode and the second electrode; and an electron-injection layer between the emission layer and the first electrode, wherein the electron-injection layer includes a compound XIn, in XIn the subscript n is an integer which is in a range of 1 to 3, and X includes a lanthanide element.
    Type: Grant
    Filed: June 14, 2017
    Date of Patent: September 25, 2018
    Assignee: Samsung Display Co., Ltd.
    Inventors: Dong Chan Kim, Dong Kyu Seo, Won Suk Han, Yoon Hyeung Cho
  • Publication number: 20180269265
    Abstract: A light-emitting diode includes a first electrode, a second electrode overlapping the first electrode, a first emission layer and a second emission layer provided between the first electrode and the second electrode, and a first charge generating layer provided between the first emission layer and the second emission layer, the first charge generating layer including a p-type charge generating layer and an n-type charge generating layer. The n-type charge generating layer may include an organic material and an inorganic material doped to the organic material, and the inorganic material may include a lanthanide metal or an alkali earth metal, and an alkali halide.
    Type: Application
    Filed: December 29, 2017
    Publication date: September 20, 2018
    Inventors: Dong Chan KIM, Won Jong KIM, Ji Young MOON, Dong Kyu SEO, Myung Chul YEO, Ji Hye LEE, Yoon Hyeung CHO
  • Publication number: 20180261801
    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: Application
    Filed: May 10, 2018
    Publication date: September 13, 2018
    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: 20180233689
    Abstract: A light emitting diode includes a first electrode overlapping a second electrode, an emission layer between the first and second electrodes. a first hole injection layer and a second hole injection layer between the first electrode and the emission layer, and a first hole transporting layer between the first hole injection layer and the second hole injection layer. Each of the first and second hole injection layers includes an inorganic dipole material. At least one of the first hole injection layer or the second hole injection layer including an organic material.
    Type: Application
    Filed: November 8, 2017
    Publication date: August 16, 2018
    Inventors: Dong Chan KIM, Won Jong KIM, Ji Young MOON, Dong Kyu SEO, Myung Chul YEO, Ji Hye LEE, Yoon Hyeung CHO
  • Publication number: 20180151653
    Abstract: A thin film encapsulation unit including an inorganic layer, a first organic layer on the inorganic layer and including a light-blocking unit and a light-transmitting unit, and a reflection-preventing layer on the first organic layer.
    Type: Application
    Filed: January 15, 2018
    Publication date: May 31, 2018
    Inventors: Byoung-Duk Lee, Yun-Ah Chung, Yoon-Hyeung Cho
  • Patent number: 9972744
    Abstract: A light emitting element includes a first electrode, a second electrode overlapping the first electrode, and an emission layer between the first electrode and the second electrode. The emission layer includes a quantum well that includes a first layer and a second layer, each having a different band gap. The first layer includes magnesium, and the second layer includes zinc. The first layer and the second layer are amorphous.
    Type: Grant
    Filed: January 17, 2017
    Date of Patent: May 15, 2018
    Assignee: Samsung Display Co., Ltd.
    Inventors: Dong Chan Kim, Dong Kyu Seo, Yoon Hyeung Cho, Won Suk Han
  • Patent number: 9972807
    Abstract: A display apparatus is provided. The display apparatus includes 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: March 11, 2014
    Date of Patent: May 15, 2018
    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: 20180123071
    Abstract: A light emitting diode and a light emitting diode display, the light emitting diode including a first electrode; a second electrode overlapping the first electrode; an emission layer between the first electrode and the second electrode; and an electron injection layer between the second electrode and the emission layer, wherein the electron injection layer includes a lanthanide element, an alkali meta first element, and a halogen second element, and wherein the first element and the second element are included in the electron injection layer in an amount of 1 vol % to 20 vol %, based on a total volume of a material including the lanthanide element, the first element, and the second element.
    Type: Application
    Filed: August 15, 2017
    Publication date: May 3, 2018
    Inventors: Dong Chan KIM, Dong Hoon KIM, Won Jong KIM, Ji Young MOON, Dong Kyu SEO, Ji Hye LEE, Da Hea IM, Sang Hoon YIM, Yoon Hyeung CHO, Won Suk HAN
  • Publication number: 20180108726
    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: December 8, 2017
    Publication date: April 19, 2018
    Inventors: Min-Ho Oh, Yoon-Hyeung Cho, Yong-Tak Kim, So-Young Lee, Jong-Woo Kim, Ji-Young Moon
  • Publication number: 20180061865
    Abstract: A thin film transistor array panel includes a substrate, a gate insulating layer, an interface layer, and a semiconductor layer. The gate insulating layer is disposed on the substrate. The interface layer is disposed on the gate insulating layer. The semiconductor layer is disposed on the interface layer. The interface layer includes a fluorinated silicon oxide. The semiconductor layer includes a p-type oxide semiconductor material.
    Type: Application
    Filed: August 16, 2017
    Publication date: March 1, 2018
    Inventors: Jae Heung Ha, Jong Woo Kim, Ji Young Moon, Min Ho Oh, Seung Jae Lee, Yoon Hyeung Cho, Young Cheol Joo, Hyeong Joon Kim, Eun-Kil Park, Sang Jin Han
  • Patent number: 9905623
    Abstract: A thin film encapsulation unit including an inorganic layer, a first organic layer on the inorganic layer and including a light-blocking unit and a light-transmitting unit, and a reflection-preventing layer on the first organic layer.
    Type: Grant
    Filed: November 30, 2015
    Date of Patent: February 27, 2018
    Assignee: Samsung Display Co., Ltd.
    Inventors: Byoung-Duk Lee, Yun-Ah Chung, Yoon-Hyeung Cho
  • Publication number: 20180047929
    Abstract: An exemplary embodiment of the present disclosure provides a light emitting diode including: a first electrode; a second electrode configured to overlap the first electrode; an emission layer between the first electrode and the second electrode; and an electron-injection layer between the emission layer and the first electrode, wherein the electron-injection layer includes a compound XIn, in XIn the subscript n is an integer which is in a range of 1 to 3, and X includes a lanthanide element.
    Type: Application
    Filed: June 14, 2017
    Publication date: February 15, 2018
    Inventors: Dong Chan KIM, Dong Kyu SEO, Won Suk HAN, Yoon Hyeung CHO
  • Publication number: 20180034003
    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 4, 2017
    Publication date: February 1, 2018
    Inventors: Min-Ho Oh, Yoon-Hyeung Cho, Yong-Tak Kim, So-Young Lee, Jong-Woo Kim, Ji-Young Moon
  • Patent number: 9842894
    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: July 13, 2017
    Date of Patent: December 12, 2017
    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: 9831468
    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: May 16, 2016
    Date of Patent: November 28, 2017
    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: 20170309699
    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: July 13, 2017
    Publication date: October 26, 2017
    Inventors: Min-Ho Oh, Yoon-Hyeung Cho, Yong-Tak Kim, So-Young Lee, Jong-Woo Kim, Ji-Young Moon
  • Patent number: 9799848
    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: May 16, 2016
    Date of Patent: October 24, 2017
    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: 9768413
    Abstract: An organic light emitting diode (OLED) display according to the present disclosure includes a substrate, a thin film transistor on the substrate, a first electrode on the thin film transistor and electrically coupled to the thin film transistor, an organic emission layer on the first electrode, a second electrode on the organic emission layer, and a capping layer on the second electrode, wherein a thickness of the second electrode is about 65 ? to about 125 ?, and wherein a thickness of the capping layer is about (500*1.88/n) ? to about (700*1.88/n) ?, n being an optical constant of the capping layer.
    Type: Grant
    Filed: January 8, 2016
    Date of Patent: September 19, 2017
    Assignee: Samsung Display Co., Ltd.
    Inventors: Sang Hoon Yim, Dong Chan Kim, Won Jong Kim, Eung Do Kim, Jae Bok Kim, Dong Kyu Seo, Won Jun Song, Ji Hye Lee, Da Hea Im, Yoon Hyeung Cho, Won Suk Han
  • 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
  • Patent number: 9735223
    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: September 25, 2013
    Date of Patent: August 15, 2017
    Assignee: Samsung Display Co., Ltd.
    Inventors: Min-Ho Oh, Yoon-Hyeung Cho, Yong-Tak Kim, So-Young Lee, Jong-Woo Kim, Ji-Young Moon