Patents by Inventor JONG-DUK ROH

JONG-DUK ROH 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: 11552281
    Abstract: A method for manufacturing a display device includes providing a panel substrate including a panel area, a peripheral area, and a dummy pattern disposed at a boundary between the panel area and the peripheral area. A protection part is disposed on the panel substrate. A first processing line overlaps a first outline of the panel area extending from a first point of an outline of the panel area. A second processing line overlaps a second outline extending from the first point in a direction different from the first outline are defined. The protection part is partially cut along the first processing line. The protection part is fully cut along the second processing line. The dummy pattern overlaps the first point.
    Type: Grant
    Filed: April 20, 2021
    Date of Patent: January 10, 2023
    Assignee: SAMSUNG DISPLAY CO., LTD.
    Inventors: Kwangmin Lee, Jong-Duk Roh
  • Publication number: 20220263050
    Abstract: A display device including a substrate and a stacked structure on the substrate. The substrate has a first hole, and the stacked structure has a second hole. The second hole partially overlaps the first hole and has an edge outside the first hole in a plan view. The substrate has a substrate exposed portion exposed to the second hole, and the substrate exposed portion is partially depressed in an edge direction of the second hole.
    Type: Application
    Filed: February 15, 2022
    Publication date: August 18, 2022
    Inventors: Jong Duk ROH, Kwang Min LEE, Sang Ik LEE, Jae Ku HAN
  • Publication number: 20220143757
    Abstract: An apparatus for manufacturing a display device and a method for manufacturing a display device are provided. An embodiment of an apparatus for manufacturing a display device includes a laser module configured to emit a laser beam and a first optical system disposed on one side of the laser module such that the laser beam is provided to the first optical system, wherein the first optical system controls an energy profile of the laser beam, wherein, on a first irradiation surface positioned at one side in a traveling direction of the laser beam from a focal point of the laser beam, the energy profile of the laser beam includes a first increase and then a first decrease in energy along a line parallel to the first irradiation surface from an outer perimeter of the laser beam toward a center of the laser beam, and wherein the energy profile of the laser beam includes a first peak corresponding to where the energy begins to decrease.
    Type: Application
    Filed: August 19, 2021
    Publication date: May 12, 2022
    Inventors: Jong Duk ROH, Kwang Min LEE, Jae Ku HAN
  • Patent number: 11292083
    Abstract: A method of manufacturing a display device includes attaching a protective film onto a display panel that includes a display area and a pad area, where the protective film includes an adhesive layer and a protective layer disposed on the adhesive layer, half-cutting the protective film along a cutting line between the display area and the pad area such that a total thickness of the protective layer and a partial thickness of the adhesive layer are cut, irradiating a partially cut portion of the adhesive layer with a laser beam along at least a portion of the cutting line, and detaching a portion of the protective film that corresponds to the pad area along the cutting line.
    Type: Grant
    Filed: February 4, 2020
    Date of Patent: April 5, 2022
    Assignee: SAMSUNG DISPLAY CO., LTD.
    Inventors: Jong-Duk Roh, Dae-Seung Mun, Kwangmin Lee, Hun So
  • Publication number: 20220028313
    Abstract: A method for manufacturing a display device includes providing a panel substrate including a panel area, a peripheral area, and a dummy pattern disposed at a boundary between the panel area and the peripheral area. A protection part is disposed on the panel substrate. A first processing line overlaps a first outline of the panel area extending from a first point of an outline of the panel area. A second processing line overlaps a second outline extending from the first point in a direction different from the first outline are defined. The protection part is partially cut along the first processing line. The protection part is fully cut along the second processing line. The dummy pattern overlaps the first point.
    Type: Application
    Filed: April 20, 2021
    Publication date: January 27, 2022
    Inventors: KWANGMIN LEE, JONG-DUK ROH
  • Publication number: 20200406397
    Abstract: A method of manufacturing a display device includes attaching a protective film onto a display panel that includes a display area and a pad area, where the protective film includes an adhesive layer and a protective layer disposed on the adhesive layer, half-cutting the protective film along a cutting line between the display area and the pad area such that a total thickness of the protective layer and a partial thickness of the adhesive layer are cut, irradiating a partially cut portion of the adhesive layer with a laser beam along at least a portion of the cutting line, and detaching a portion of the protective film that corresponds to the pad area along the cutting line.
    Type: Application
    Filed: February 4, 2020
    Publication date: December 31, 2020
    Inventors: JONG-DUK ROH, DAE-SEUNG MUN, KWANGMIN LEE, HUN SO