Patents by Inventor Kyu H. HWANG

Kyu H. HWANG 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).

  • DISPLAY DEVICE
    Publication number: 20230126073
    Abstract: A display device and a manufacturing method of a display device are provided. A display device includes: a substrate; a semiconductor layer on the substrate; a source electrode and a drain electrode on the semiconductor layer; an auxiliary electrode on a same layer as the source electrode and the drain electrode; a first electrode electrically connected with the source electrode or the drain electrode; a light emitting element layer on the first electrode; and a second electrode on the light emitting element layer, and the auxiliary electrode includes at least one groove located inside the auxiliary electrode.
    Type: Application
    Filed: September 9, 2022
    Publication date: April 27, 2023
    Inventors: Joon Gu LEE, HYE JIN GWARK, ARONG KIM, Jae Ik KIM, JUNGSUN PARK, HEEMIN PARK, Yeon Hwa LEE, KYU H. HWANG
  • Deposition mask, method of manufacturing deposition mask, and method of manufacturing display apparatus
    Patent number: 9695522
    Abstract: A deposition mask including a mask body including a plurality of pattern holes; a plurality of protrusions protruding from the mask body; and a plurality of grooves formed in the mask body. A grain size of the mask body is in arrange of about 10 ?m to about 1000 ?m, and a difference between a maximum height of the plurality of protrusions and a maximum height of the plurality of grooves is equal to or less than 0.5 ?m.
    Type: Grant
    Filed: November 20, 2015
    Date of Patent: July 4, 2017
    Assignee: Samsung Display Co., Ltd.
    Inventors: Sungsoon Im, Kyu H. Hwang, Jaesik Kim, Minho Moon, Youngmin Moon, Soonchul Chang, Taewook Kang
  • DEPOSITION MASK, METHOD OF MANUFACTURING DEPOSITION MASK, AND METHOD OF MANUFACTURING DISPLAY APPARATUS
    Publication number: 20160145762
    Abstract: A deposition mask including a mask body including a plurality of pattern holes; a plurality of protrusions protruding from the mask body; and a plurality of grooves formed in the mask body. A grain size of the mask body is in arrange of about 10 ?m to about 1000 ?m, and a difference between a maximum height of the plurality of protrusions and a maximum height of the plurality of grooves is equal to or less than 0.5 ?m.
    Type: Application
    Filed: November 20, 2015
    Publication date: May 26, 2016
    Inventors: Sungsoon IM, Kyu H. HWANG, Jaesik KIM, Minho MOON, Youngmin MOON, Soonchul CHANG, Taewook KANG