Patents by Inventor Byung Geol Kim

Byung Geol 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).

  • Publication number: 20240118196
    Abstract: In the case of a gas in which several gases are mixed, a type and concentration of the gas may be incorrectly measured when measured using only an optical band-pass filter. The invention of the present application is directed to providing a technology in which a plurality of broadband band-pass filters having overlapping regions are provided to calculate a magnitude of absorption for each wavelength band for light passing through each broadband band-pass filter, thereby identifying the presence of a gas of interest and the presence of a gas other than the gas of interest.
    Type: Application
    Filed: September 8, 2023
    Publication date: April 11, 2024
    Inventors: Cheol Woo NAM, Byung Yul MOON, Eung Yul KIM, Jae Hwan KIM, Chun Ho SHIN, Kwang Hun PARK, Myun Gu CHOI, Chang Hwang CHOI, Yong Geol KIM, Jae Min JEON
  • Patent number: 11950438
    Abstract: The present disclosure relates to an inorganic light emitting diode (LED) in which an emitting material layer (EML) includes inorganic luminescent particles dispersed in a siloxane matrix, wherein the siloxane matrix has a thickness equal to or less than a thickness of a layer of the inorganic luminescent particles, and an inorganic light emitting device including the inorganic LED. The siloxane matrix allows surface defects of the inorganic luminescent particles to be minimized and to prevent injections of holes and electrons from being delayed. The inorganic LED and the inorganic light emitting device lower their driving voltages and improve their luminous efficiency.
    Type: Grant
    Filed: December 10, 2020
    Date of Patent: April 2, 2024
    Assignee: LG DISPLAY CO., LTD.
    Inventors: Tae-Yang Lee, Byung-Geol Kim
  • Publication number: 20230296939
    Abstract: Discussed is a luminous body including a plurality of emission moieties, each emission moiety including an inorganic emission particle and a coating layer surrounding a surface of the inorganic emission particle, and an encapsulation moiety connected to or combined with the coating layer of the plurality of emission moieties by a covalent bond and surrounding the plurality of emission moieties.
    Type: Application
    Filed: May 30, 2023
    Publication date: September 21, 2023
    Applicant: LG DISPLAY CO., LTD.
    Inventors: Byung-Geol KIM, Hye-Li MIN, Dong-Young KIM
  • Patent number: 11703711
    Abstract: The present invention provides a luminous body, and light emitting film, light emitting diode and light emitting device including the same. The luminous body can include a plurality of emission moieties each including an inorganic emission particle and a coating layer surrounding a surface of the inorganic emission particle, and an encapsulation moiety connected to the coating layer and surrounding the plurality of emission moieties. The present invention further provides a light emitting film, a liquid crystal display device, a light emitting diode package, a light emitting diode and a light emitting display device including the luminous body.
    Type: Grant
    Filed: November 26, 2018
    Date of Patent: July 18, 2023
    Assignee: LG DISPLAY CO., LTD.
    Inventors: Byung-Geol Kim, Hye-Li Min, Dong-Young Kim
  • Patent number: 11222997
    Abstract: A luminous body includes a first moiety including a plurality of first ligands combined to a surface of an inorganic emitting particle; and a second moiety including silsesquioxanes connected to a second ligand connected to one of the first ligands, wherein one of the first and second ligands is a polar ligand, and the other one of the first and second ligands is a non-polar ligand.
    Type: Grant
    Filed: October 17, 2018
    Date of Patent: January 11, 2022
    Assignee: LG DISPLAY CO., LTD.
    Inventors: Dong-Young Kim, Jong-Hoon Woo, Byung-Geol Kim, Hye-Li Min, Min-Surk Hyung
  • Patent number: 11127913
    Abstract: A quantum-dot light emitting diode includes a first electrode; a second electrode facing the first electrode; a QD emitting material layer between the first and second electrodes and including a QD; a hole transporting layer between the first electrode and the QD emitting material layer and including a first hole transporting material; a first electron transporting layer between the QD emitting material layer and the second electrode; and a first electron control layer between the QD emitting material layer and the first electron transporting layer and including a second hole transporting material.
    Type: Grant
    Filed: November 21, 2019
    Date of Patent: September 21, 2021
    Assignee: LG DISPLAY CO., LTD.
    Inventors: Sung-Il Woo, Byung-Geol Kim
  • Publication number: 20210184146
    Abstract: The present disclosure relates to an inorganic light emitting diode (LED) in which an emitting material layer (EML) includes inorganic luminescent particles dispersed in a siloxane matrix, wherein the siloxane matrix has a thickness equal to or less than a thickness of a layer of the inorganic luminescent particles, and an inorganic light emitting device including the inorganic LED. The siloxane matrix allows surface defects of the inorganic luminescent particles to be minimized and to prevent injections of holes and electrons from being delayed. The inorganic LED and the inorganic light emitting device lower their driving voltages and improve their luminous efficiency.
    Type: Application
    Filed: December 10, 2020
    Publication date: June 17, 2021
    Applicant: LG Display Co., Ltd.
    Inventors: Tae-Yang Lee, Byung-Geol Kim
  • Patent number: 10978659
    Abstract: The present disclosure relates to a illuminant comprising an inorganic luminescent particle having at least one metal component on a surface thereof, and an (iso) quinoline-based ligand coordinated to the at least one metal component, a light-emitting diode and a light-emitting device including the illuminant in an emitting material layer (EML). The illuminant enables white luminescence in the light-emitting diode with only single emissive unit.
    Type: Grant
    Filed: October 11, 2019
    Date of Patent: April 13, 2021
    Assignee: LG DISPLAY CO., LTD.
    Inventors: Byung-Geol Kim, Sung-Il Woo
  • Patent number: 10962835
    Abstract: An inorganic composite luminescent material includes inorganic illuminants. An inorganic illuminant includes an inorganic luminescent particle configured to emit light, and a porous coating surrounding the inorganic luminescent particle. The porous coating has a plurality of pores. The inorganic composite luminescent material can further include scattering agents within at least a portion of the plurality of pores in the porous coating of the inorganic illuminants. The scattering agents are configured to scatter the light emitted from the inorganic luminescent particles.
    Type: Grant
    Filed: September 18, 2018
    Date of Patent: March 30, 2021
    Assignee: LG Display Co., Ltd.
    Inventors: Hye-Li Min, Byung-Geol Kim, Dong-Young Kim
  • Publication number: 20200168827
    Abstract: A quantum-dot light emitting diode includes a first electrode; a second electrode facing the first electrode; a QD emitting material layer between the first and second electrodes and including a QD; a hole transporting layer between the first electrode and the QD emitting material layer and including a first hole transporting material; a first electron transporting layer between the QD emitting material layer and the second electrode; and a first electron control layer between the QD emitting material layer and the first electron transporting layer and including a second hole transporting material.
    Type: Application
    Filed: November 21, 2019
    Publication date: May 28, 2020
    Applicant: LG Display Co., Ltd.
    Inventors: Sung-Il Woo, Byung-Geol Kim
  • Publication number: 20200119298
    Abstract: The present disclosure relates to a illuminant comprising an inorganic luminescent particle having at least one metal component on a surface thereof, and an (iso) quinoline-based ligand coordinated to the at least one metal component, a light-emitting diode and a light-emitting device including the illuminant in an emitting material layer (EML). The illuminant enables white luminescence in the light-emitting diode with only single emissive unit.
    Type: Application
    Filed: October 11, 2019
    Publication date: April 16, 2020
    Applicant: LG Display Co., Ltd.
    Inventors: Byung-Geol KIM, Sung-Il WOO
  • Patent number: 10516127
    Abstract: A quantum rod panel includes a first substrate and a second substrate facing each other, a pixel electrode and a common electrode over the first substrate and spaced apart from each other, and a quantum rod layer between the pixel electrode and the common electrode and including quantum rods and metal particles.
    Type: Grant
    Filed: October 4, 2017
    Date of Patent: December 24, 2019
    Assignee: LG DISPLAY CO., LTD.
    Inventors: Sung-Il Woo, Byung-Geol Kim, Kyu-Nam Kim, Kyung-Kook Jang, Tae-Yang Lee
  • Patent number: 10450507
    Abstract: A quantum dot includes a seed and a core enclosing the seed. The core is grown from the seed to improve size uniformity of the core. The seed includes a first compound without Cd. The first compound may be GaP. The core may include a second compound including elements from group XIII and group XV. The second compound may be InP. The quantum dot may also include a first shell of a third compound enclosing the core. The third compound may be ZnSe or ZnS. The quantum dot may also include a second shell of a fourth compound enclosing the first shell. The fourth compound may be ZnS when the third compound is ZnSe. Embodiments also relate to a quantum dot including first to third elements selected from XIII group elements and XV group elements and fourth to sixth elements selected from XII group elements and XVI group elements.
    Type: Grant
    Filed: August 26, 2016
    Date of Patent: October 22, 2019
    Assignee: LG Display Co., Ltd.
    Inventors: Kyung-Kook Jang, Byung-Geol Kim, Wy-Yong Kim, Kyu-Nam Kim, Hee-Yeol Kim, Sung-Il Woo, Do-Hyung Kim, Tae-Yang Lee
  • 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: 10364391
    Abstract: A quantum dot includes a seed and a core enclosing the seed. The core is grown from the seed to improve size uniformity of the core. The seed includes a first compound without Cd. The first compound may be GaP. The core may include a second compound including elements from group XIII and group XV. The second compound may be InP. The quantum dot may also include a first shell of a third compound enclosing the core. The third compound may be ZnSe or ZnS. The quantum dot may also include a second shell of a fourth compound enclosing the first shell. The fourth compound may be ZnS when the third compound is ZnSe. Embodiments also relate to a quantum dot including first to third elements selected from XIII group elements and XV group elements and fourth to sixth elements selected from XII group elements and XVI group elements.
    Type: Grant
    Filed: August 26, 2016
    Date of Patent: July 30, 2019
    Assignee: LG Display Co., Ltd.
    Inventors: Kyung-Kook Jang, Byung-Geol Kim, Wy-Yong Kim, Kyu-Nam Kim, Hee-Yeol Kim, Sung-Il Woo, Do-Hyung Kim, Tae-Yang Lee
  • Publication number: 20190163016
    Abstract: The present invention provides a luminous body, and light emitting film, light emitting diode and light emitting device including the same. The luminous body can include a plurality of emission moieties each including an inorganic emission particle and a coating layer surrounding a surface of the inorganic emission particle, and an encapsulation moiety connected to the coating layer and surrounding the plurality of emission moieties. The present invention further provides a light emitting film, a liquid crystal display device, a light emitting diode package, a light emitting diode and a light emitting display device including the luminous body.
    Type: Application
    Filed: November 26, 2018
    Publication date: May 30, 2019
    Applicant: LG DISPLAY CO., LTD.
    Inventors: Byung-Geol KIM, Hye-Li MIN, Dong-Young KIM
  • Patent number: 10287497
    Abstract: A quantum rod luminescent display device includes a first substrate having a plurality of pixel regions; a plurality of first electrodes alternately arranged with a plurality of second electrodes in each of the plurality of pixel regions; a plurality of quantum rod compound layers over the first electrodes and the second electrodes, respectively in each of the plurality of pixel regions, each of the quantum rod compound layers including a quantum rod having a core, a shell surrounding the core, and an electron acceptor; a second substrate facing the first substrate; and a backlight unit at an outer surface of the first substrate. The electron acceptor is attached to or adjacent to the quantum rod.
    Type: Grant
    Filed: December 1, 2015
    Date of Patent: May 14, 2019
    Assignee: LG DISPLAY CO., LTD.
    Inventors: Kyu-Nam Kim, Jin-Wuk Kim, Byung-Geol Kim, Sung-Woo Kim, Kyung-Kook Jang, Hee-Yeol Kim, Sung-Il Woo
  • Publication number: 20190115507
    Abstract: A luminous body includes a first moiety including a plurality of first ligands combined to a surface of an inorganic emitting particle; and a second moiety including silsesquioxanes connected to a second ligand connected to one of the first ligands, wherein one of the first and second ligands is a polar ligand, and the other one of the first and second ligands is a non-polar ligand.
    Type: Application
    Filed: October 17, 2018
    Publication date: April 18, 2019
    Applicant: LG Display Co., Ltd.
    Inventors: Dong-Young KIM, Jong-Hoon WOO, Byung-Geol KIM, Hye-Li MIN, Min-Surk HYUNG
  • Publication number: 20190086733
    Abstract: An inorganic composite luminescent material includes inorganic illuminants. An inorganic illuminant includes an inorganic luminescent particle configured to emit light, and a porous coating surrounding the inorganic luminescent particle. The porous coating has a plurality of pores. The inorganic composite luminescent material can further include scattering agents within at least a portion of the plurality of pores in the porous coating of the inorganic illuminants. The scattering agents are configured to scatter the light emitted from the inorganic luminescent particles.
    Type: Application
    Filed: September 18, 2018
    Publication date: March 21, 2019
    Inventors: Hye-Li MIN, Byung-Geol KIM, Dong-Young KIM
  • Patent number: 10217882
    Abstract: A quantum rod, a synthesis method of the quantum rod and a quantum rod display device are discussed. The quantum rod according to an embodiment includes a core, a first shell covering the core, and a second shell covering a side of the first shell. In the quantum rod, a first thickness of the first shell is greater than a second thickness of the second shell, and a first length of the first shell is smaller than a second length of the second shell.
    Type: Grant
    Filed: September 12, 2017
    Date of Patent: February 26, 2019
    Assignee: LG DISPLAY CO., LTD.
    Inventors: Kyung-Kook Jang, Byung-Geol Kim, Wy-Yong Kim, Kyu-Nam Kim, Sung-Il Woo