Patents by Inventor Yongkyu KANG

Yongkyu KANG 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: 20240414982
    Abstract: A display device includes a display panel and a cover window disposed on the display panel. The display panel includes a deformation part, which is curvedly deformable, and a non-deformation part adjacent to the deformation part. The cover window includes a first cover part overlapping the non-deformation part and including crystallized glass, and a second cover part overlapping the deformation part and not including the crystallized glass.
    Type: Application
    Filed: March 27, 2024
    Publication date: December 12, 2024
    Inventors: HYUNSEUNG SEO, YONGKYU KANG, JIHYUN KO, Jinsu NAM, Junho LEE
  • Patent number: 12151969
    Abstract: A tempered glass manufacturing apparatus includes a loading unit for loading sheets of glass therein. A heating unit receives the loading unit having sheets of glass loaded therein. The heating unit includes first to third openings. A tempering unit is connected to the heating unit through the first opening and receives the loading unit having sheets of glass loaded therein. The tempering unit performs a tempering process on the sheets of glass when the loading unit is positioned in the tempering unit. A residual salt discharging unit is connected to the heating unit through the second opening. An auxiliary layer providing unit is connected to the heating unit through the third opening of the heating unit. The auxiliary layer providing unit includes auxiliary layers for performing a residual salt preprocessing process to increase a removal of residual salt provided on surfaces of the sheets of glass.
    Type: Grant
    Filed: March 29, 2022
    Date of Patent: November 26, 2024
    Assignee: SAMSUNG DISPLAY CO., LTD.
    Inventors: Hyunji Lee, Yongkyu Kang, Hoikwan Lee
  • Publication number: 20240306474
    Abstract: A cover window includes a first area and a second area, a base layer disposed in the first area and the second area and having flexibility in the first area, and a functional layer disposed on at least one surface of the base layer and including: a first part disposed in the first area and including a first ion and a second part disposed in the second area and including a second ion different from the first ions.
    Type: Application
    Filed: February 14, 2024
    Publication date: September 12, 2024
    Applicant: Samsung Display Co., LTD.
    Inventors: HYUNSEUNG SEO, Jinsu Nam, YONGKYU KANG, JIHYUN KO, Junho Lee
  • Patent number: 12071363
    Abstract: A glass article includes a central layer including a first crystalline phase having a first coefficient of thermal expansion and a surface layer surrounding an entirety of the central layer and including a second crystalline phase having a second coefficient of thermal expansion smaller than the first coefficient of thermal expansion. Accordingly, the strength of the glass article may be improved.
    Type: Grant
    Filed: August 5, 2022
    Date of Patent: August 27, 2024
    Assignee: SAMSUNG DISPLAY CO., LTD.
    Inventors: Jin Su Nam, Yongkyu Kang, Jihyun Ko, Minki Kim, Hyunseung Seo
  • Publication number: 20240254039
    Abstract: An apparatus for manufacturing a glass article includes a chamber defining an inner space that accommodates a molten salt for molding and chemical strengthening the glass article, a first electrode disposed in the inner space of the chamber and in contact with the molten salt, a second electrode disposed in the inner space of the chamber, in contact with the molten salt, and facing the first electrode, and a power supply connected to the first electrode and the second electrode.
    Type: Application
    Filed: January 30, 2024
    Publication date: August 1, 2024
    Inventors: JIHYUN KO, MINKI KIM, JINSU NAM, JUN HO LEE, YONGKYU KANG, HYUNSEUNG SEO
  • Publication number: 20240182360
    Abstract: A window includes a base glass including a central region, and an exterior region surrounding the central region, and a crystal layer disposed on the base glass and overlapping the exterior region, where the crystal layer includes at least one selected from P2O5, ZrO2, and TiO2, and a crystal content of the base glass is different from a crystal content of the crystal layer.
    Type: Application
    Filed: December 4, 2023
    Publication date: June 6, 2024
    Inventors: YONGKYU KANG, Jinsu NAM, SEUNGHO KIM
  • Patent number: 11981597
    Abstract: A display module includes a display panel and a window. The window includes a base substrate and a plurality of functional layers. A central portion of the base substrate is flat, and an edge portion of the base substrate has a rounded shape. An upper portion of the edge portion of the window has the rounded shape and thus protrudes from a lower portion of the edge portion toward the outside. A first functional layer of the plurality of functional layers includes an acrylic-based material and/or an epoxy-based material, and a second functional layer of the plurality of functional layers includes a fluorine-based material.
    Type: Grant
    Filed: February 13, 2020
    Date of Patent: May 14, 2024
    Assignee: SAMSUNG DISPLAY CO., LTD.
    Inventors: Hyunseung Seo, Jonghwan Cho, Yongkyu Kang, Jihyun Ko, Ho Yun Byun
  • Publication number: 20240101470
    Abstract: A window manufacturing method includes preparing a glass substrate including alkali ions, providing a strengthening material on a surface of the glass substrate, and strengthening the surface of the glass substrate. The strengthening the surface of the glass substrate includes irradiating the strengthening material disposed on the glass substrate with high-frequency waves, and the strengthening material includes a salt including ion exchange target ions, which are ion-exchangeable with the alkali ions included in the glass substrate, and a high-frequency reactive material.
    Type: Application
    Filed: July 3, 2023
    Publication date: March 28, 2024
    Inventors: JINSU NAM, YONGKYU KANG, SEUNGHO KIM
  • Publication number: 20240083806
    Abstract: A method of manufacturing a window includes preparing a base material layer, forming a first hard coating layer on the base material layer, and forming a second hard coating layer on the first hard coating layer. The forming of the second hard coating layer is performed in an environment having an oxygen concentration of about 0.01% to about 0.1%.
    Type: Application
    Filed: November 16, 2023
    Publication date: March 14, 2024
    Inventors: Dong-Sung LEE, Hyunseung SEO, Hui yeon SHON, Hyunkyung YUN, Changmoo LEE, JONGHWAN CHO, Yongkyu KANG, Jihyun KO
  • Publication number: 20240034041
    Abstract: An apparatus for manufacturing a display device includes a stage, a surface member disposed on the stage, a linear motion portion that is spaced apart from the stage and that linearly moves, a mock-up portion disposed on the linear motion portion and that falls to the surface member, and a cover window coupled to the mock-up portion and that includes one surface exposed outside the mock-up portion.
    Type: Application
    Filed: July 21, 2023
    Publication date: February 1, 2024
    Inventors: MINKI KIM, Yongkyu Kang, Jihyun Ko, Jinsu Nam
  • Patent number: 11873245
    Abstract: A method of manufacturing a window includes preparing a base material layer, forming a first hard coating layer on the base material layer, and forming a second hard coating layer on the first hard coating layer. The forming of the second hard coating layer is performed in an environment having an oxygen concentration of about 0.01% to about 0.1%.
    Type: Grant
    Filed: October 22, 2020
    Date of Patent: January 16, 2024
    Assignee: SAMSUNG DISPLAY CO., LTD.
    Inventors: Dong-Sung Lee, Hyunseung Seo, Hui yeon Shon, Hyunkyung Yun, Changmoo Lee, Jonghwan Cho, Yongkyu Kang, Jihyun Ko
  • Patent number: 11840478
    Abstract: A display module includes a display panel and a window. The window includes a base substrate and a plurality of functional layers. A central portion of the base substrate is flat, and an edge portion of the base substrate has a rounded shape. An upper portion of the edge portion of the window has the rounded shape and thus protrudes from a lower portion of the edge portion toward the outside. A first functional layer of the plurality of functional layers includes an acrylic-based material and/or an epoxy-based material, and a second functional layer of the plurality of functional layers includes a fluorine-based material.
    Type: Grant
    Filed: February 13, 2020
    Date of Patent: December 12, 2023
    Assignee: SAMSUNG DISPLAY CO., LTD.
    Inventors: Hyunseung Seo, Jonghwan Cho, Yongkyu Kang, Jihyun Ko
  • Publication number: 20230192533
    Abstract: A glass article includes a central layer including a first crystalline phase having a first coefficient of thermal expansion and a surface layer surrounding an entirety of the central layer and including a second crystalline phase having a second coefficient of thermal expansion smaller than the first coefficient of thermal expansion. Accordingly, the strength of the glass article may be improved.
    Type: Application
    Filed: August 5, 2022
    Publication date: June 22, 2023
    Inventors: Jin Su NAM, YONGKYU KANG, JIHYUN KO, MINKI KIM, HYUNSEUNG SEO
  • Publication number: 20220388902
    Abstract: Provided is a glass strengthening method including preparing a glass and strengthening the glass by providing the glass with a molten salt, wherein the molten salt has a freezing point of about 220° C. or more and less than 320° C. In addition, the molten salt includes a first salt and a second salt that are different from each other, wherein the first salt is KNO3, and the second salt includes at least one ion of Li+, Na+, K+, Cs+, and/or Rb+.
    Type: Application
    Filed: February 7, 2022
    Publication date: December 8, 2022
    Inventors: HYUNJI LEE, YONGKYU KANG, HOIKWAN LEE
  • Publication number: 20220363593
    Abstract: A tempered glass manufacturing apparatus includes a loading unit for loading sheets of glass therein. A heating unit receives the loading unit having sheets of glass loaded therein. The heating unit includes first to third openings. A tempering unit is connected to the heating unit through the first opening and receives the loading unit having sheets of glass loaded therein. The tempering unit performs a tempering process on the sheets of glass when the loading unit is positioned in the tempering unit. A residual salt discharging unit is connected to the heating unit through the second opening. An auxiliary layer providing unit is connected to the heating unit through the third opening of the heating unit. The auxiliary layer providing unit includes auxiliary layers for performing a residual salt preprocessing process to increase a removal of residual salt provided on surfaces of the sheets of glass.
    Type: Application
    Filed: March 29, 2022
    Publication date: November 17, 2022
    Inventors: HYUNJI LEE, YONGKYU KANG, HOIKWAN LEE
  • Patent number: 11428862
    Abstract: A display device includes a display panel for displaying an image; a light guide plate overlapping the display panel and having a light exit surface, a bottoms surface opposite to the light exit surface, and a plurality of edge surfaces; and a plurality of light sources spaced apart from each other and configured to project light into a first edge surface of the plurality of edge surfaces of the light guide plate. The bottom surface includes a plurality of diffusion parts defining an activation area adjacent to a second edge surface of the plurality of edge surfaces opposite to the first edge surface, and a plurality of functional pattern parts defining a pattern area adjacent to the first edge surface. The functional pattern parts overlap a space between adjacent light sources, respectively, when viewed in a first direction heading from the light source part to the first edge surface.
    Type: Grant
    Filed: June 4, 2019
    Date of Patent: August 30, 2022
    Assignee: Samsung Display Co., Ltd.
    Inventors: Seul-Gi Kim, Yongkyu Kang, Kang Woo Lee
  • Publication number: 20220267191
    Abstract: A loading apparatus for glass plates includes first and second frames facing each other and supporters extending in a first direction, disposed between the first frame and the second frame, and coupled with the first frame and the second frame. Each of the plurality of supporters includes a supporting bar and a coating layer covering at least a portion of the supporting bar. The plurality of supporters supports the glass plates arranged in the first direction, and the coating layer includes at least one of Teflon, molybdenum, ceramic, and metal oxide.
    Type: Application
    Filed: November 2, 2021
    Publication date: August 25, 2022
    Inventors: HYUNJI LEE, YONGKYU KANG, HOIKWAN LEE
  • Publication number: 20210405265
    Abstract: A method of manufacturing a window includes providing a base substrate and a protective film each including an upper surface and a lower surface, providing the upper surface of the protective film removably attached to the lower surface of the base substrate, providing a processed base substrate and a processed protective film by removing portions of the base substrate and the protective film to provide an exposed upper surface of the processed protective film which is closer to the lower surface thereof than the upper surface thereof, providing a first surface protection layer on both the upper surface of the processed base substrate and the exposed upper surface of the processed protective film, and providing the processed protective film separated from the processed base substrate to provide the window which is attachable to a display device and includes the processed base substrate having the first surface protection layer.
    Type: Application
    Filed: March 12, 2021
    Publication date: December 30, 2021
    Inventors: DONG-SUNG LEE, YONGKYU KANG, JIHYUN KO, HYUNSEUNG SEO, HUI YEON SHON, HYUNKYUNG YUN
  • Publication number: 20210294022
    Abstract: A display device includes a display panel displaying an image, a backlight unit including a light guide plate overlapping the display panel and a light source part including a plurality of light sources providing light to the light incident surface and spaced apart from each other, in which the bottom surface includes an activation area adjacent to the light facing surface and a pattern area adjacent to the light incident surface, diffusion pattern parts disposed in the activation area, and functional pattern parts disposed in the pattern area, and the functional pattern parts overlap spaced spaces between adjacent light sources, respectively, when viewed in a first direction heading from the light source part to the light incident surface.
    Type: Application
    Filed: June 4, 2019
    Publication date: September 23, 2021
    Inventors: Seul-Gi KIM, Yongkyu KANG, Kang Woo LEE
  • Publication number: 20210289648
    Abstract: A cover window includes a base member which includes a top surface, a bottom surface opposite to the top surface, and a side surface connecting the top surface and the bottom surface to each other, a first hard coating layer on the top surface of the base member, and a protection layer in direct contact with at least a portion of the side surface of the base member.
    Type: Application
    Filed: January 6, 2021
    Publication date: September 16, 2021
    Inventors: Dong-Sung LEE, Yongkyu KANG, Jihyun KO, Hyunseung SEO, Hui yeon SHON, Hyunkyung YUN, Changmoo LEE