Patents by Inventor Jeong Og Choi

Jeong Og Choi 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).

  • Composition comprising quantum dot and device using same
    Patent number: 9512353
    Abstract: The present invention provides a composition including a quantum dot and vinyl siloxane including an alkyl group having a carbon number of 4 or more, and a device to which the composition is applied, wherein the composition can effectively be applied to various types of light emitting devices due to excellent dispersibility of quantum dots, UV-stability, and heat-resistance.
    Type: Grant
    Filed: February 1, 2013
    Date of Patent: December 6, 2016
    Assignee: LMS Co., Ltd.
    Inventors: Doo Hyo Kwon, Jeong Og Choi, Myeon Choeon Choi
  • 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
  • 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
  • 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 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
  • Composition comprising quantum dot, and device using same
    Patent number: 9206350
    Abstract: The present invention provides a curable composition comprising an acrylate and a quantum dot, and a device using the same. Since the luminous efficiency and dispersion of a quantum dot are excellent and the curable composition has remarkable UV stability and heat resistance, the curable composition can be effectively applied to various forms of light emitting devices.
    Type: Grant
    Filed: December 1, 2012
    Date of Patent: December 8, 2015
    Assignee: LMS Co., Ltd.
    Inventors: Myeon Choeon Choi, Jeong Og Choi, Doo Hyo Kwon
  • Novel Compound, Light-Emitting Element Comprising same and Electronic Device Comprising the Light-Emitting Element
    Publication number: 20150349271
    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: Application
    Filed: August 9, 2013
    Publication date: December 3, 2015
    Applicant: LMS Co., Ltd.
    Inventors: Jeong Og Choi, Oh Kwan Kwon, Joon Ho Jung
  • OPTICAL SHEET AND BACKLIGHT UNIT HAVING THE OPTICAL SHEET
    Publication number: 20150301257
    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: Application
    Filed: November 7, 2013
    Publication date: October 22, 2015
    Applicant: LMS CO., LTD
    Inventors: Jeong Og CHOI, Oh Kwan KWON, Byeong Cheol KIM
  • NANOCOMPOSITE, AND OPTICAL MEMBER AND BACKLIGHT UNIT HAVING THE OPTICAL MEMBER
    Publication number: 20150285444
    Abstract: Disclosed is a nanocomposite. The nanocomposite includes a wax particle, at least one nano light-emitting body positioned inside the wax particle, and a silicon oxide protective layer for coating the nano light-emitting body. The nanocomposite can improve light stability and heat/moisture stability of the nano light-emitting body.
    Type: Application
    Filed: November 7, 2013
    Publication date: October 8, 2015
    Inventors: Jeong Og Choi, Oh Kwan Kwon, Byeong Cheol Kim
  • THERMALLY CONDUCTIVE COMPOSITION AND SHEET
    Publication number: 20150275062
    Abstract: A thermally conductive composition according to the present invention includes a base resin, thermally conductive particles, and a carbon-containing powder. Accordingly, heat transfer characteristics of a sheet may be improved.
    Type: Application
    Filed: October 1, 2013
    Publication date: October 1, 2015
    Applicant: LMS Co., Ltd.
    Inventors: Byeong Cheol Kim, Doo Hyo Kwon, Oh Kwan Kwon, Jeong Og Choi
  • COATED PARTICLE, COMPOSITION INCLUDING SAME, AND HEAT TRANSFER SHEET
    Publication number: 20150252241
    Abstract: The coated particle according to the present invention includes a base particle and a graphene layer which covers the surface of the base particle. Accordingly, a coated particle of which the shape and the particle distribution are easily controlled may be prepared.
    Type: Application
    Filed: October 1, 2013
    Publication date: September 10, 2015
    Inventors: Sung Won Jang, Oh Kwan Kwon, Jeong Og Choi
  • Encapsulated Quantum Dots and Device Using Same
    Publication number: 20150184066
    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: Application
    Filed: July 3, 2013
    Publication date: July 2, 2015
    Inventors: Doo Hyo Kwon, Jeong Og Choi, Oh Kwan Kwon
  • Composition Comprising Quantum Dot, and Device Using Same
    Publication number: 20150045499
    Abstract: The present invention provides a curable composition comprising an acrylate and a quantum dot, and a device using the same. Since the luminous efficiency and dispersion of a quantum dot are excellent and the curable composition has remarkable UV stability and heat resistance, the curable composition can be effectively applied to various forms of light emitting devices.
    Type: Application
    Filed: December 1, 2012
    Publication date: February 12, 2015
    Inventors: Myeon Choeon Choi, Jeong Og Choi, Doo Hyo Kwon
  • Composition Comprising Quantum Dot and Device Using Same
    Publication number: 20150034875
    Abstract: The present invention provides a composition including a quantum dot and vinyl siloxane including an alkyl group having a carbon number of 4 or more, and a device to which the composition is applied, wherein the composition can effectively be applied to various types of light emitting devices due to excellent dispersibility of quantum dots, UV-stability, and heat-resistance.
    Type: Application
    Filed: February 1, 2013
    Publication date: February 5, 2015
    Inventors: Doo Hyo Kwon, Jeong Og Choi, Myeon Choeon Choi
  • Novel Compound and Organic Electronic Device Comprising the Compound
    Publication number: 20140203251
    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: Application
    Filed: May 25, 2012
    Publication date: July 24, 2014
    Applicant: LMS CO., LTD.
    Inventors: Joon Ho Jung, Jeong Og Choi, Oh Kwan Kwon, Ah Reum Hwang