Patents by Inventor Kyehoon KIM

Kyehoon 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: 20240204035
    Abstract: A display apparatus, includes: a liquid crystal panel; and a backlight configured to provide light to the liquid crystal panel, the backlight including a substrate and a light-emitting diode (LED) that is mounted on the substrate. The LED includes a plurality of light-emitting layers configured to emit light of different wavelengths. A wavelength of light emitted from each of the plurality of light-emitting layers is greater than or equal to 430 nm and less than or equal to 480 nm.
    Type: Application
    Filed: October 12, 2023
    Publication date: June 20, 2024
    Applicant: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Sungyeol KIM, Kyehoon Lee, Pujjae Choi, Sooyoung Park, Chunsoon Park, Junsung Choi
  • Patent number: 12013614
    Abstract: A display apparatus is provided that includes: a printed circuit board (PCB); a light emitting diode (LED) chip mounted on the PCB and configured to emit light; an optical dome disposed over and enclosing the LED chip; a distributed Bragg reflector (DBR) layer arranged on an upper surface of the LED chip; a liquid crystal panel configured to block or pass light output from the LED chip; and an optical film arranged between the LED chip and the liquid crystal panel. A ratio of a height of the optical dome to a diameter of a bottom surface of the optical dome is 0.25 to 0.31, and the optical film includes a quantum dot sheet formed to enhance color reproducibility by making a change in wavelength of light.
    Type: Grant
    Filed: April 28, 2023
    Date of Patent: June 18, 2024
    Assignee: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Sungyeol Kim, Kyungsoo Park, Chunsoon Park, Kyehoon Lee
  • Patent number: 11097963
    Abstract: The present disclosure relates to a method for treating a solvent in wastewater generated in a polycarbonate production process. More specifically, the present disclosure relates to a method for treating a solvent in wastewater generated in a polycarbonate production process, which can easily recover a high purity solvent regardless of the concentration of the solvent by using a membrane distillation method to reuse it, and contribute to energy savings.
    Type: Grant
    Filed: December 22, 2017
    Date of Patent: August 24, 2021
    Assignee: LG CHEM, LTD.
    Inventors: Youna Kim, Dong Kwon Lee, Jeong Seok Lee, Kwang Hyon Kim, Choongkyun Yeom, Seok Ki Kang, Kyehoon Kim
  • Publication number: 20200317540
    Abstract: The present disclosure relates to a method for treating a solvent in wastewater generated in a polycarbonate production process. More specifically, the present disclosure relates to a method for treating a solvent in wastewater generated in a polycarbonate production process, which can easily recover a high purity solvent regardless of the concentration of the solvent by using a membrane distillation method to reuse it, and contribute to energy savings.
    Type: Application
    Filed: December 22, 2017
    Publication date: October 8, 2020
    Inventors: Youna KIM, Dong Kwon LEE, Jeong Seok LEE, Kwang Hyon KIM, Choongkyun YEOM, Seok Ki KANG, Kyehoon KIM