Patents by Inventor So-Mang KIM

So-Mang 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).

  • Patent number: 11538998
    Abstract: The present disclosure relates to an organic compound having a binaphthyl core and a group connected to the biphenyl core and having excellent charge mobility property, and a light emitting diode and a light emitting device having the organic compound. The organic compound can be applied into the light emitting diode by using solution process and has very deep HOMO energy level. When the organic compound is applied into a chare transfer layer, a HOMO energy level bandgap between the charge transfer layer and an emitting material layer is reduced so that holes and electrons can be injected into the emitting material layer in a balanced manner.
    Type: Grant
    Filed: December 11, 2019
    Date of Patent: December 27, 2022
    Assignee: LG DISPLAY CO., LTD.
    Inventors: Na Yeon Lee, So Mang Kim
  • Patent number: 11398580
    Abstract: The present disclosure relates to a light emitting diode in which a charge transfer layer, which disposed between two electrodes, including an inorganic material in which an amphiphilic ligand is connected to a surface of an inorganic nano particle and to a light emitting device having the diode. The amphiphilic ligand minimizes defects on the surface of the inorganic nano particle, thus charge transfer materials can be stably. Since charge transfer layers and an emitting material layer can be prepared by using an orthogonal solvent, interface morphology between the emissive layers can be improved.
    Type: Grant
    Filed: September 4, 2020
    Date of Patent: July 26, 2022
    Assignee: LG Display Co., Ltd.
    Inventors: Jeong-Eun Won, So-Mang Kim
  • Patent number: 11329189
    Abstract: The present disclosure relates to a light emitting diode that includes a charge control layer disposed between a charge transfer layer and one electrode and including polysiloxane-based material chemically bonded to a surface of the charge transfer layer and a light emitting device having the same. The charge control layer is configured to remove a surface defect of the charge transfer layer, to transport charges stably, and to reflect a part of light passing through the charge transfer layer, and thereby enhancing out-coupling efficiency. In addition, the charge control layer regulates a charge flow from the electrode to the charge transfer layer, so that charges may be injected into an emitting material layer in a balanced manner.
    Type: Grant
    Filed: November 22, 2019
    Date of Patent: May 10, 2022
    Inventors: Hye Li Min, So Mang Kim
  • Publication number: 20210066544
    Abstract: The present disclosure relates to a light emitting diode in which a charge transfer layer, which disposed between two electrodes, including an inorganic material in which an amphiphilic ligand is connected to a surface of an inorganic nano particle and to a light emitting device having the diode. The amphiphilic ligand minimizes defects on the surface of the inorganic nano particle, thus charge transfer materials can be stably. Since charge transfer layers and an emitting material layer can be prepared by using an orthogonal solvent, interface morphology between the emissive layers can be improved.
    Type: Application
    Filed: September 4, 2020
    Publication date: March 4, 2021
    Applicant: LG DISPLAY CO., LTD.
    Inventors: Jeong-Eun WON, So-Mang KIM
  • Patent number: 10770623
    Abstract: An emitting diode includes a first electrode in a first pixel; a first emitting layer positioned on the first electrode and in the first pixel and including a first amorphous oxide semiconductor material and a first quantum dot, wherein the first amorphous oxide semiconductor material includes an indium atom, a gallium atom and a zinc atom; and a second electrode covering the first emitting layer.
    Type: Grant
    Filed: October 24, 2018
    Date of Patent: September 8, 2020
    Assignee: LG DISPLAY CO., LTD.
    Inventors: Ji-Yeon Kang, Kyung-Kook Jang, So-Mang Kim
  • Patent number: 10741731
    Abstract: A multi-emission quantum dot includes a first core having a first thickness along an axis from a first surface to a second surface of the first core, a first shell enclosing the first core, a second core surrounding the first shell. The second core may has a second thickness along the same axis smaller than the first thickness. The quantum dot also includes a second shell enclosing the second core. The first core may be configured to emit light of a first color, and the second core may be configured to emit light of a second color different from the first color.
    Type: Grant
    Filed: September 18, 2018
    Date of Patent: August 11, 2020
    Assignee: LG Display Co., Ltd.
    Inventors: Kyung-Kook Jang, Ji-Yeon Kang, So-Mang Kim
  • Publication number: 20200194678
    Abstract: The present disclosure relates to an organic compound having a binaphthyl core and a group connected to the biphenyl core and having excellent charge mobility property, and a light emitting diode and a light emitting device having the organic compound. The organic compound can be applied into the light emitting diode by using solution process and has very deep HOMO energy level. When the organic compound is applied into a chare transfer layer, a HOMO energy level bandgap between the charge transfer layer and an emitting material layer is reduced so that holes and electrons can be injected into the emitting material layer in a balanced manner.
    Type: Application
    Filed: December 11, 2019
    Publication date: June 18, 2020
    Applicant: LG Display Co., Ltd.
    Inventors: Na Yeon LEE, So Mang KIM
  • Publication number: 20200168763
    Abstract: The present disclosure relates to a light emitting diode that includes a charge control layer disposed between a charge transfer layer and one electrode and including polysiloxane-based material chemically bonded to a surface of the charge transfer layer and a light emitting device having the same. The charge control layer is configured to remove a surface defect of the charge transfer layer, to transport charges stably, and to reflect a part of light passing through the charge transfer layer, and thereby enhancing out-coupling efficiency. In addition, the charge control layer regulates a charge flow from the electrode to the charge transfer layer, so that charges may be injected into an emitting material layer in a balanced manner.
    Type: Application
    Filed: November 22, 2019
    Publication date: May 28, 2020
    Applicant: LG Display Co., Ltd.
    Inventors: Hye Li MIN, So Mang KIM
  • Patent number: 10431712
    Abstract: An optical member for a multi-panel display device according to an embodiment includes a first optical member located on a first display device and including optical fibers, a second optical member located on a second display device neighboring the first display device and including optical fibers, and an optical fiber triangular bar located to overlap a region where the first and second optical members are adjacent to each other, and including optical fibers, wherein each of the first and second optical members includes a chamfer portion corresponding to the optical fiber triangular bar at the region where the first and second optical members are adjacent to each other.
    Type: Grant
    Filed: September 18, 2017
    Date of Patent: October 1, 2019
    Assignee: LG DISPLAY CO., LTD.
    Inventors: Kyung-Kook Jang, Byung-Geol Kim, Dong-Young Kim, So-Mang Kim
  • Patent number: 10319930
    Abstract: Embodiments relate to a quantum rod, a quantum rod film, a quantum rod display device with a quantum rod. The quantum rod includes a first core, a second core separated from the first core, and a first shell surrounding the first and second cores.
    Type: Grant
    Filed: December 29, 2017
    Date of Patent: June 11, 2019
    Assignees: LG DISPLAY CO., LTD., KOREA ADVANCED INSTITUTE OF SCIENCE AND TECHNOLOGY
    Inventors: Kyu-Nam Kim, So-Mang Kim, Duk-Young Jeon, Yong-Hee Lee
  • Publication number: 20190131492
    Abstract: An emitting diode includes a first electrode in a first pixel; a first emitting layer positioned on the first electrode and in the first pixel and including a first amorphous oxide semiconductor material and a first quantum dot, wherein the first amorphous oxide semiconductor material includes an indium atom, a gallium atom and a zinc atom; and a second electrode covering the first emitting layer.
    Type: Application
    Filed: October 24, 2018
    Publication date: May 2, 2019
    Applicant: LG DISPLAY CO., LTD.
    Inventors: Ji-Yeon KANG, Kyung-Kook JANG, So-Mang KIM
  • Publication number: 20190103524
    Abstract: A multi-emission quantum dot includes a first core having a first thickness along an axis from a first surface to a second surface of the first core, a first shell enclosing the first core, a second core surrounding the first shell. The second core may has a second thickness along the same axis smaller than the first thickness. The quantum dot also includes a second shell enclosing the second core. The first core may be configured to emit light of a first color, and the second core may be configured to emit light of a second color different from the first color.
    Type: Application
    Filed: September 18, 2018
    Publication date: April 4, 2019
    Inventors: Kyung-Kook JANG, Ji-Yeon KANG, So-Mang KIM
  • Publication number: 20180190920
    Abstract: Embodiments relate to a quantum rod, a quantum rod film, a quantum rod display device with a quantum rod. The quantum rod includes a first core, a second core separated from the first core, and a first shell surrounding the first and second cores.
    Type: Application
    Filed: December 29, 2017
    Publication date: July 5, 2018
    Applicants: LG DISPLAY CO., LTD., KOREA ADVANCED INSTITUTE OF SCIENCE AND TECHNOLOGY
    Inventors: Kyu-Nam KIM, So-Mang KIM, Duk-Young JEON, Yong-Hee LEE
  • Publication number: 20180083158
    Abstract: An optical member for a multi-panel display device according to an embodiment includes a first optical member located on a first display device and including optical fibers, a second optical member located on a second display device neighboring the first display device and including optical fibers, and an optical fiber triangular bar located to overlap a region where the first and second optical members are adjacent to each other, and including optical fibers, wherein each of the first and second optical members includes a chamfer portion corresponding to the optical fiber triangular bar at the region where the first and second optical members are adjacent to each other.
    Type: Application
    Filed: September 18, 2017
    Publication date: March 22, 2018
    Applicant: LG DISPLAY CO., LTD.
    Inventors: Kyung-Kook JANG, Byung-Geol KIM, Dong-Young KIM, So-Mang KIM