Patents by Inventor Oh Kwan Kwon

Oh Kwan Kwon 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).

  • Method for manufacturing quantum dot film comprising encapsulated quantum dots uniformly dispersed therein, quantum dot film manufactured thereby and wavelength conversion sheet and display comprising same
    Patent number: 11634627
    Abstract: The present invention relates to a method of manufacturing a quantum-dot film having encapsulated quantum dots dispersed therein, in which quantum dots are uniformly dispersed in a matrix resin to thus increase quantum yield and in which deterioration of the quantum dots can be prevented through encapsulation, a quantum-dot film manufactured thereby, and a wavelength conversion sheet and a display including the same.
    Type: Grant
    Filed: November 8, 2018
    Date of Patent: April 25, 2023
    Assignee: INNO QD CO., LTD
    Inventors: Jae Gyun Choi, Oh Kwan Kwon, Jong Uk Bu, Chul Park
  • METHOD FOR PREPARING QUANTUM DOT FILM, QUANTUM DOT FILM PREPARED THEREBY, AND WAVELENGTH CONVERSION SHEET AND DISPLAY COMPRISING SAME
    Publication number: 20210269709
    Abstract: Proposed are a method of manufacturing a quantum-dot film having encapsulated quantum dots dispersed therein, in which quantum dots are uniformly dispersed in a matrix resin to thus increase quantum yield and in which deterioration of the quantum dots can be prevented through encapsulation, a quantum-dot film manufactured thereby, and a wavelength conversion sheet and a display including the same.
    Type: Application
    Filed: June 26, 2019
    Publication date: September 2, 2021
    Inventors: Jae Gyun CHOI, Oh Kwan KWON, Jong Uk BU, Chul PARK
  • METHOD FOR MANUFACTURING QUANTUM DOT FILM, QUANTUM DOT FILM MANUFACTURED THEREBY AND WAVELENGTH CONVERSION SHEET AND DISPLAY COMPRISING SAME
    Publication number: 20210024820
    Abstract: The present invention relates to a method of manufacturing a quantum-dot film having encapsulated quantum dots dispersed therein, in which quantum dots are uniformly dispersed in a matrix resin to thus increase quantum yield and in which deterioration of the quantum dots can be prevented through encapsulation, a quantum-dot film manufactured thereby, and a wavelength conversion sheet and a display including the same.
    Type: Application
    Filed: November 8, 2018
    Publication date: January 28, 2021
    Inventors: Jae Gyun CHOI, Oh Kwan KWON, Jong Uk BU, Chul PARK
  • Compound, light-emitting element comprising same and electronic device comprising the light-emitting element
    Patent number: 10522764
    Abstract: The present invention relates to a compound, and a light-emitting element and an electronic device including the same, and, more particularly, to a compound for an organic light-emitting element, and a light-emitting element and an electronic device including the same. The compound according to the present invention can improve hole injection and/or transport abilities.
    Type: Grant
    Filed: August 9, 2013
    Date of Patent: December 31, 2019
    Assignee: LMS Co., Ltd.
    Inventors: Jeong Og Choi, Oh Kwan Kwon, Joon Ho Jung
  • Compound, light emitting device comprising same, and electronic device
    Patent number: 10141519
    Abstract: A novel compound for improving the hole injection and transport properties in a light emitting device, a light emitting device including the compound, and an electronic device including a light emitting device are provided.
    Type: Grant
    Filed: January 28, 2014
    Date of Patent: November 27, 2018
    Assignee: LMS CO., LTD.
    Inventors: Jeong Og Choi, Joon Ho Jung, Oh Kwan Kwon
  • Compound, and light-emitting device and electronic device including same
    Patent number: 10141534
    Abstract: A novel compound according to the present invention may improve the capability of transporting electrons to a light-emitting layer in a light-emitting device, and may improve the light-emitting efficiency and increase the lifespan of the light-emitting device by using the compound.
    Type: Grant
    Filed: April 7, 2014
    Date of Patent: November 27, 2018
    Assignee: LMS CO.,LTD.
    Inventors: Jeong Og Choi, Joon Ho Jung, Oh Kwan Kwon
  • Encapsulated quantum dots and device using same
    Patent number: 10083774
    Abstract: The present invention provides a quantum dot encapsulated by a siloxane including an alkyl group having 4 or more carbon atoms, a composition including the same, and a device to which the composition is applied, and when the encapsulated quantum dot is used, quantum yield and dispersion stability may be enhanced.
    Type: Grant
    Filed: July 3, 2013
    Date of Patent: September 25, 2018
    Assignee: LMS Co., Ltd.
    Inventors: Doo Hyo Kwon, Jeong Og Choi, Oh Kwan Kwon
  • Compound, and light-emitting element and electronic device comprising same
    Patent number: 10050208
    Abstract: The present invention suggest a novel compound for improving the capability of injecting and/or transporting a hole in a light-emitting element, and a light-emitting element and an electronic device including the same, and may improve the light-emitting efficiency of the light-emitting element, and increase the lifespan thereof. In addition, the present invention may improve thermal stability (heat resistance) of the light-emitting element.
    Type: Grant
    Filed: November 28, 2013
    Date of Patent: August 14, 2018
    Assignee: LMS CO., LTD.
    Inventors: Jeong Og Choi, Joon Ho Jung, Oh Kwan Kwon
  • Compound, light-emitting element and electronic device comprising same
    Patent number: 9966538
    Abstract: A novel compound for improving the power efficiency and the lifespan of a light-emitting element, and a light-emitting element and an electronic device including the same are provided. And the new compound may provide excellent light-emitting efficiency and extended lifespan, and may improve thermal stability (heat resistance) for the electronic device.
    Type: Grant
    Filed: November 7, 2013
    Date of Patent: May 8, 2018
    Assignee: LMS CO., LTD.
    Inventors: Jeong Og Choi, Joon Ho Jung, Oh Kwan Kwon
  • Optical sheet and backlight unit having the optical sheet
    Patent number: 9884992
    Abstract: In an optical sheet and a backlight unit comprising same, the optical sheet comprises: a first transparent film, a first barrier layer; and an light conversion layer, wherein the first barrier layer is formed on one surface of the first transparent film, the light conversion layer is formed on top of the first barrier layer, and wherein at least one of a light-emitting composite including a wax particle and a nano light-emitting body that is disposed inside the wax particle, and a fluorescent particle is dispersed.
    Type: Grant
    Filed: November 7, 2013
    Date of Patent: February 6, 2018
    Assignee: LMS CO., LTD.
    Inventors: Jeong Og Choi, Oh Kwan Kwon, Byeong Cheol Kim
  • Compound, and light emitting diode and electronic apparatus comprising same
    Patent number: 9842998
    Abstract: In a novel compound, and a light emitting diode and an electronic apparatus including the same, the novel compound is represented by the following Chemical Formula 1.
    Type: Grant
    Filed: September 18, 2013
    Date of Patent: December 12, 2017
    Assignee: LMS CO., LTD.
    Inventors: Jeong Og Choi, Joon Ho Jung, Oh Kwan Kwon
  • Compound and organic electronic device comprising the compound
    Patent number: 9680107
    Abstract: Provided are a novel compound and an organic electronic device (OED) including the same. The novel compound has better hole injection and hole transport properties than a conventional material, and thus may enhance thermal stability and efficiency when used as a material for a hole injection or hole transport layer of the OED.
    Type: Grant
    Filed: May 25, 2012
    Date of Patent: June 13, 2017
    Assignee: LMS Co., Ltd.
    Inventors: Joon Ho Jung, Jeong Og Choi, Oh Kwan Kwon, Ah Reum Hwang
  • Light-emitting diode having novel structure and electronic apparatus comprising same
    Patent number: 9614163
    Abstract: A light-emitting diode includes: a first electrode; a second electrode; a light-emitting layer disposed between the first electrode and the second electrode; a hole transportable layer disposed between the first electrode and the light-emitting layer; and a blocking layer, which is disposed between the hole transportable layer and the light-emitting layer and includes a compound represented by the following Chemical Formula 1.
    Type: Grant
    Filed: September 18, 2013
    Date of Patent: April 4, 2017
    Assignee: LMS Co., Ltd.
    Inventors: Jeong Og Choi, Joon Ho Jung, Oh Kwan Kwon
  • Novel Compound, and Light-Emitting Element and Electronic Device Comprising Same
    Publication number: 20160248019
    Abstract: The present invention suggest a novel compound for improving the capability of injecting and/or transporting a hole in a light-emitting element, and a light-emitting element and an electronic device including the same, and may improve the light-emitting efficiency of the light-emitting element, and increase the lifespan thereof. In addition, the present invention may improve thermal stability (heat resistance) of the light-emitting element.
    Type: Application
    Filed: November 28, 2013
    Publication date: August 25, 2016
    Inventors: Jeong Og CHOI, Joon Ho JUNG, Oh Kwan KWON
  • Novel Compound, Light-Emitting Element and Electronic Device Comprising Same
    Publication number: 20160181544
    Abstract: A novel compound for improving the power efficiency and the lifespan of a light-emitting element, and a light-emitting element and an electronic device including the same are provided. And the new compound may provide excellent light-emitting efficiency and extended lifespan, and may improve thermal stability (heat resistance) for the electronic device.
    Type: Application
    Filed: November 7, 2013
    Publication date: June 23, 2016
    Inventors: Jeong Og Choi, Joon Ho Jung, Oh Kwan Kwon
  • NOVEL COMPOUND, LIGHT EMITTING DEVICE COMPRISING SAME, AND ELECTRONIC DEVICE
    Publication number: 20160126476
    Abstract: A novel compound for improving the hole injection and transport properties in a light emitting device, a light emitting device including the compound, and an electronic device including a light emitting device are provided.
    Type: Application
    Filed: January 28, 2014
    Publication date: May 5, 2016
    Inventors: Jeong Og CHOI, Joon Ho JUNG, Oh Kwan KWON
  • COMPOSITE, COMPOSITION CONTAINING THE SAME, AND APPARATUS
    Publication number: 20160068749
    Abstract: A composite includes at least one quantum dot, and a wax-based compound that covers a surface of the quantum dot. The composite has remarkable quantum efficiency, a small variation in emission peak even when dispersed in a resin, good dispersion stability, good ultraviolet light stability and good heat/moisture stability.
    Type: Application
    Filed: November 7, 2013
    Publication date: March 10, 2016
    Inventors: Doo Hyo Kwon, Jeong Og Choi, Oh Kwan Kwon
  • Novel Compound, and Light Emitting Diode and Electronic Apparatus Comprising Same
    Publication number: 20160072074
    Abstract: In a novel compound, and a light emitting diode and an electronic apparatus including the same, the novel compound is represented by the following Chemical Formula 1.
    Type: Application
    Filed: September 18, 2013
    Publication date: March 10, 2016
    Inventors: Jeong Og Choi, Joon Ho Jung, Oh Kwan Kwon
  • NOVEL COMPOUND, AND LIGHT-EMITTING DEVICE AND ELECTRONIC DEVICE INCLUDING SAME
    Publication number: 20160056402
    Abstract: A novel compound according to the present invention may improve the capability of transporting electrons to a light-emitting layer in a light-emitting device, and may improve the light-emitting efficiency and increase the lifespan of the light-emitting device by using the compound.
    Type: Application
    Filed: April 7, 2014
    Publication date: February 25, 2016
    Inventors: Jeong Og Choi, Joon Ho Jung, Oh Kwan Kwon
  • Light-Emitting Diode Having Novel Structure and Electronic Apparatus Comprising Same
    Publication number: 20160043326
    Abstract: A light-emitting diode includes: a first electrode; a second electrode; a light-emitting layer disposed between the first electrode and the second electrode; a hole transportable layer disposed between the first electrode and the light-emitting layer; and a blocking layer, which is disposed between the hole transportable layer and the light-emitting layer and includes a compound represented by the following Chemical Formula 1.
    Type: Application
    Filed: September 18, 2013
    Publication date: February 11, 2016
    Inventors: Jeong Og CHOI, Joon Ho JUNG, Oh Kwan KWON