Patents by Inventor Chang Hyeon Cho

Chang Hyeon Cho 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: 20240196666
    Abstract: Disclosed are a display panel, which is capable of reducing mura at low grayscale, and a method of manufacturing the same. The thickness of a gate insulating layer of a driving thin-film transistor is increased, and the mobility of the driving thin-film transistor is reduced to reduce the K-factor of the driving thin-film transistor. The display panel includes a plurality of sub-pixels, each having a driving thin-film transistor, a switching thin-film transistor, and a storage capacitor on a substrate. The driving thin-film transistor includes a semiconductor layer comprising a source region and a drain region; a gate electrode overlapping the semiconductor layer; a source electrode and a drain electrode electrically connected to the source region and the drain region; and a gate insulating layer located between the semiconductor layer and the gate electrode. The semiconductor layer is a dehydrogenated semiconductor layer.
    Type: Application
    Filed: August 21, 2023
    Publication date: June 13, 2024
    Applicant: LG DISPLAY CO., LTD.
    Inventors: Byung Yong AHN, Won So SON, Chang Hyeon CHO
  • Publication number: 20240186555
    Abstract: An embodiment fuel cell including a high temperature polymer electrolyte membrane includes an electrolyte membrane including a phosphoric acid-doped polymer of intrinsic microporosity, a cathode disposed on a first surface of the electrolyte membrane, and an anode disposed on a second surface of the electrolyte membrane, the second surface opposite the first surface.
    Type: Application
    Filed: April 12, 2023
    Publication date: June 6, 2024
    Inventors: Da Hee Kwak, Won Jae Choi, Songi Oh, Hyoun Myung Park, Sung Hee Shin, Jee Youn Hwang, Ah Hyeon Park, Kyung Su Kim, Ji Yun Kim, Seong Min Cho, Chang Sik Song
  • Patent number: D870720
    Type: Grant
    Filed: October 23, 2017
    Date of Patent: December 24, 2019
    Assignee: JUNI KOREA CO., LTD.
    Inventors: Chang Hyeon Cho, Kyung Jun Kim