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: 10418576
    Abstract: A light emitting diode including a first electrode; a second electrode overlapping the first electrode; an emission layer positioned between the first electrode and the second electrode; and an electron transporting region positioned between the second electrode and the emission layer, wherein the electron transporting region includes a tellurium compound of a rare earth metal.
    Type: Grant
    Filed: March 15, 2018
    Date of Patent: September 17, 2019
    Assignee: SAMSUNG DISPLAY CO., LTD.
    Inventors: Dong Chan Kim, Ji Young Moon, Yeong Rong Park, Dong Kyu Seo, Myung Chul Yeo, Ji Hye Lee, Hyung Seok Jang, Won Jong Kim, Yoon Hyeung Cho
  • Publication number: 20190273220
    Abstract: An organic light emitting diode display includes: a substrate; an organic light emitting element on the substrate; and a capping layer on the organic light emitting element and including a high refraction layer formed of an inorganic material having a refractive index which is equal to or greater than about 1.7 and equal to or less than about 6.0, wherein the inorganic material includes at least one selected from CuI, thallium iodide (TlI), AgI, CdI2, HgI2, SnI2, PbI2, BiIa, ZnI2, MnI2, FeI2, CoI2, NiI2, aluminium iodide (AlI3), thorium(IV) iodide (ThI4), uranium triiodide (UI3), MgS, MgSe, MgTe, CaS, CaSe, CaTe, SrS, SrSe, SrTe, BaS, BaSe, BaTe, SnS, PbS, CdS, CaS, ZnS, ZnTe, PbTe, CdTe, SnSe, PbSe, CdSe, CuO, Cu2O, WO3, MoO3, SnO2, Nb2O5, Ag2O, CdO, CoO, Pr2O3, Bi2O3, Fe2O3, AlAs, GaAs, InAs, GaP, InP, AlP, AlSb, GaSb, and InSb.
    Type: Application
    Filed: May 20, 2019
    Publication date: September 5, 2019
    Inventors: Dong Chan KIM, Won Jong KIM, Eung Do KIM, Ji Hye LEE, Da Hea IM, Sang Hoon YIM, Yoon Hyeung CHO, Won Suk HAN
  • Patent number: 10403851
    Abstract: An organic light emitting diode display includes: a substrate; an organic light emitting element on the substrate; and a capping layer on the organic light emitting element and including a high refraction layer formed of an inorganic material having a refractive index which is equal to or greater than about 1.7 and equal to or less than about 6.0, wherein the inorganic material includes at least one selected from CuI, thallium iodide (TlI), AgI, CdI2, HgI2, SnI2, PbI2, BiI3, ZnI2, MnI2, FeI2, CoI2, NiI2, aluminum iodide (AlI3), thorium (IV) iodide (ThI4), uranium triiodide (UI3), MgS, MgSe, MgTe, CaS, CaSe, CaTe, SrS, SrSe, SrTe, BaS, BaSe, BaTe, SnS, PbS, CdS, CaS, ZnS, ZnTe, PbTe, CdTe, SnSe, PbSe, CdSe, CuO, Cu2O, WO3, MoO3, SnO2, Nb2O5, Ag2O, CdO, CoO, Pr2O3, Bi2O3, Fe2O3, AlAs, GaAs, InAs, GaP, InP, AlP, AlSb, GaSb, and InSb.
    Type: Grant
    Filed: December 30, 2015
    Date of Patent: September 3, 2019
    Assignee: Samsung Display Co., Ltd.
    Inventors: Dong Chan Kim, Won Jong Kim, Eung Do Kim, Ji Hye Lee, Da Hea Im, Sang Hoon Yim, Yoon Hyeung Cho, Won Suk Han
  • 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
  • Patent number: 10361400
    Abstract: An organic light emitting diode display including: a substrate; an organic light emitting diode on the substrate; a capping layer on the organic light emitting diode and including a high refractive layer including an inorganic material having a refractive index that is equal to or greater than about 1.7 and equal to or less than about 6.0; and a thin film encapsulation layer covering the capping layer and the organic light emitting diode, the inorganic material including at least one selected from the group consisting of CuI, thallium iodide (TlI), BaS, Cu2O, CuO, BiI, WO3, TiO2, AgI, CdI2, HgI2, SnI2, PbI2, BiI3, ZnI2, MoO3, Ag2O, CdO, CoO, Pr2O3, SnS, PbS, CdS, CaS, ZnS, ZnTe, PbTe, CdTe, SnSe, PbSe, CdSe, AlAs, GaAs, InAs, GaP, InP, AlP, AlSb, GaSb, and InSb.
    Type: Grant
    Filed: March 31, 2016
    Date of Patent: July 23, 2019
    Assignee: Samsung Display Co., Ltd.
    Inventors: Won Jong Kim, Dong Chan Kim, Eung Do Kim, Dong Kyu Seo, Da Hea Im, Sang Hoon Yim, Yoon Hyeung Cho, Won Suk Han
  • 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: 10283734
    Abstract: An organic light emitting diode display, including a substrate; a thin film transistor on the substrate; a first electrode on the thin film transistor and electrically connected to the thin film transistor; an organic emission layer on the first electrode; a second electrode on the organic emission layer; and a first capping layer on the second electrode and a second capping layer on the first capping layer, the second capping layer being thicker than the first capping layer.
    Type: Grant
    Filed: October 8, 2015
    Date of Patent: May 7, 2019
    Assignee: SAMSUNG DISPLAY CO., LTD.
    Inventors: Sang Hoon Yim, Dong Chan Kim, Won Jong Kim, Eung Do Kim, Dong Kyu Seo, Jong Hyuk Lee, Da Hea Im, Yoon Hyeung Cho, Chang Woong Chu
  • 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
  • Publication number: 20190115557
    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: December 12, 2018
    Publication date: April 18, 2019
    Inventors: Dong Chan KIM, Won Jong KIM, Ji Young MOON, Dong Kyu SEO, Myung Chul YEO, Ji Hye LEE, Yoon Hyeung CHO
  • Publication number: 20190096318
    Abstract: A light emitting diode and a display device, the light emitting diode including a first electrode; a second electrode overlapping the first electrode; and an emission layer positioned between the first electrode and the second electrode, wherein the emission layer includes a first material, the first material including an alkali metal halide, an alkaline earth metal halide, a transition metal halide, an alkali metal chalcogenide, or an alkaline earth metal chalcogenide, and a second material, the second material including a lanthanide metal or a compound of a lanthanide metal.
    Type: Application
    Filed: June 5, 2018
    Publication date: March 28, 2019
    Inventors: Dong Chan KIM, Byoung Duk LEE, Yoon Hyeung CHO
  • Publication number: 20190081266
    Abstract: A light emitting diode including a first electrode; a second electrode overlapping the first electrode; an emission layer positioned between the first electrode and the second electrode; and an electron transporting region positioned between the second electrode and the emission layer, wherein the electron transporting region includes a tellurium compound of a rare earth metal.
    Type: Application
    Filed: March 15, 2018
    Publication date: March 14, 2019
    Inventors: Dong Chan KIM, Ji Young MOON, Yeong Rong PARK, Dong Kyu SEO, Myung Chul YEO, Ji Hye LEE, Hyung Seok JANG, Won Jong KIM, Yoon Hyeung CHO
  • Publication number: 20190081279
    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: November 12, 2018
    Publication date: March 14, 2019
    Inventors: Min-Ho Oh, Yoon-Hyeung Cho, Yong-Tak Kim, So-Young Lee, Jong-Woo Kim, Ji-Young Moon
  • Publication number: 20190049633
    Abstract: A mirror substrate includes a transparent substrate, a plurality of first mirror patterns arranged on the transparent substrate and spaced apart from each other, each of the first mirror patterns including a phase compensation layer and a first mirror layer sequentially stacked on the transparent substrate, and a second mirror layer disposed on the transparent substrate and between neighboring ones of the first mirror patterns, the second mirror layer having a second thickness less than a first thickness of the first mirror layer.
    Type: Application
    Filed: October 18, 2018
    Publication date: February 14, 2019
    Inventors: Sang-Hoon YIM, Dong-Chan KIM, Won-Jong KIM, Eung-Do KIM, Dong-Kyu SEO, Ji-Hye LEE, Da-Hea IM, Yoon-Hyeung CHO, Won-Suk HAN
  • Patent number: 10170723
    Abstract: An organic light emitting element according to an exemplary embodiment of the present disclosure includes a first electrode, a second electrode, an emission layer between the first electrode and the second electrode, an electron injection layer between the second electrode and the emission layer, and a barrier layer between the electron injection layer and the second electrode, wherein a work function of the barrier layer is larger than a work function of the second electrode.
    Type: Grant
    Filed: July 12, 2016
    Date of Patent: January 1, 2019
    Assignee: Samsung Display Co., Ltd.
    Inventors: Dong Kyu Seo, Dong Chan Kim, Won Jong Kim, Eung Do Kim, Jong Hyuk Lee, Da Hea Im, Sang Hoon Yim, Yoon Hyeung Cho, Chang Woong Chu, Won Suk Han
  • Publication number: 20180375048
    Abstract: A light-emitting diode includes a first electrode, a second electrode, a light-emitting layer, and a hole transfer layer. The light-emitting layer is disposed between the first electrode and the second electrode. The hole transfer layer is disposed between the light-emitting layer and the second electrode. The hole transfer layer includes an organic material. At least one of tellurium or a telluride compound of a transition metal is doped in the organic material included in the hole transfer layer.
    Type: Application
    Filed: January 8, 2018
    Publication date: December 27, 2018
    Inventors: Dong Chan KIM, Won Jong KIM, Ji Young MOON, Yeong Rong PARK, Dong Kyu SEO, Myung Chul YEO, Ji Hye LEE, Yoon Hyeung CHO
  • Patent number: 10158095
    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: Grant
    Filed: November 8, 2017
    Date of Patent: December 18, 2018
    Assignee: Samsung Display Co., Ltd.
    Inventors: Dong Chan Kim, Won Jong Kim, Ji Young Moon, Dong Kyu Seo, Myung Chul Yeo, Ji Hye Lee, Yoon Hyeung Cho
  • Patent number: 10147844
    Abstract: A quantum dot includes: a core including at least one first positive ion precursor and at least one negative ion precursor; a shell including at least one second positive ion precursor and at least one negative ion precursor and wrapping the core; and a ligand formed on a surface of the shell, wherein the first positive ion precursor is an n-period element and the second positive ion precursor is an (n-1)-period element, where n is an integer of 3 to 6.
    Type: Grant
    Filed: December 15, 2016
    Date of Patent: December 4, 2018
    Assignee: Samsung Display Co., Ltd.
    Inventors: Dong Chan Kim, Yoon Hyeung Cho, Yi Su Kim
  • Patent number: 10132968
    Abstract: A mirror substrate includes a transparent substrate, a plurality of first mirror patterns arranged on the transparent substrate and spaced apart from each other, each of the first mirror patterns including a phase compensation layer and a first mirror layer sequentially stacked on the transparent substrate, and a second mirror layer disposed on the transparent substrate and between neighboring ones of the first mirror patterns, the second mirror layer having a second thickness less than a first thickness of the first mirror layer.
    Type: Grant
    Filed: January 3, 2017
    Date of Patent: November 20, 2018
    Assignee: Samsung Display Co., Ltd.
    Inventors: Sang-Hoon Yim, Dong-Chan Kim, Won-Jong Kim, Eung-Do Kim, Dong-Kyu Seo, Ji-Hye Lee, Da-Hea Im, Yoon-Hyeung Cho, Won-Suk Han
  • Patent number: 10128464
    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 4, 2017
    Date of Patent: November 13, 2018
    Assignee: Samsung Display Co., Ltd.
    Inventors: Min-Ho Oh, Yoon-Hyeung Cho, Yong-Tak Kim, So-Young Lee, Jong-Woo Kim, Ji-Young Moon