Patents by Inventor Heeju WOO

Heeju WOO 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: 20240122011
    Abstract: A display device includes a first conductive pattern layer connected to a signal line, a second conductive pattern layer connected to the first conductive pattern layer, and an insulation pattern layer disposed between the signal line and the second conductive pattern layer and overlapping the second conductive pattern layer. The second conductive pattern layer exposes a portion of an upper surface and a side surface of the insulation pattern layer. The second conductive pattern layer includes first and second edge portions disposed on the upper surface of the insulation pattern layer and facing each other in a second direction intersecting a first direction. A distance between the first and second edge portions decreases as moving along the first direction in a first region of the upper surface of the insulation pattern layer, and increases as moving along the first direction in a second region of the upper surface.
    Type: Application
    Filed: September 20, 2023
    Publication date: April 11, 2024
    Applicant: Samsung Display Co., Ltd.
    Inventors: HEEJU WOO, CHOLONG WON, KIKYUNG YOUK, SEUNG-SOO RYU
  • Patent number: 11871630
    Abstract: A display device includes a base layer, a pixel disposed on the base layer, a signal line electrically connected to the pixel, a signal pad connected to the signal line, and a plurality of insulating layers disposed on the base layer. The signal pad includes a first conductive pattern connected to an end portion of the signal line, a second conductive pattern connected to the first conductive pattern, and at least one insulating pattern disposed between the end portion of the signal line and the second conductive pattern in a cross-sectional view and overlapping the second conductive pattern in a plan view.
    Type: Grant
    Filed: December 7, 2022
    Date of Patent: January 9, 2024
    Assignee: SAMSUNG DISPLAY CO., LTD.
    Inventors: Kikyung Youk, Hanbum Kwon, Seung-Soo Ryu, Heeju Woo, Cholong Won, Daehyuk Im, Sun Oh Jeong
  • Publication number: 20230403895
    Abstract: A method of manufacturing a display apparatus in which the occurrence of a short circuit may be reduced includes forming a pad in a peripheral area of a substrate having a display area and the peripheral area outside the display area, disposing a first conductive particle on a surface of the pad, disposing a second conductive particle on a surface of a bump included in an electronic chip package, the surface of the bump facing the surface of the pad, and electrically connecting the pad to the bump by bringing the first conductive particle into contact with the second conductive particle.
    Type: Application
    Filed: May 25, 2023
    Publication date: December 14, 2023
    Inventors: Youngok PARK, Seungsoo RYU, Heeju WOO
  • Publication number: 20230247874
    Abstract: A display device includes a base layer, a pixel disposed on the base layer, a signal line electrically connected to the pixel, a signal pad connected to the signal line, and a plurality of insulating layers disposed on the base layer. The signal pad includes a first conductive pattern connected to an end portion of the signal line, a second conductive pattern connected to the first conductive pattern, and at least one insulating pattern disposed between the end portion of the signal line and the second conductive pattern in a cross-sectional view and overlapping the second conductive pattern in a plan view.
    Type: Application
    Filed: December 7, 2022
    Publication date: August 3, 2023
    Inventors: Kikyung Youk, Hanbum Kwon, Seung-soo Ryu, Heeju Woo, Cholong Won, Daehyuk Im, Sun Oh Jeong
  • Patent number: 11552155
    Abstract: A method for manufacturing a display device includes providing an electronic component between a plurality of bumps, providing a display panel, aligning the electronic component and the display panel, and applying ultrasonic waves to bond the plurality of bumps to signal pads. In providing first adhesive members, at least a portion of a top surface of each of the plurality of bumps is exposed between the first adhesive members.
    Type: Grant
    Filed: July 31, 2020
    Date of Patent: January 10, 2023
    Assignee: SAMSUNG DISPLAY CO., LTD.
    Inventors: Chan-Jae Park, Sangduk Lee, Heeju Woo, Kikyung Youk, Hyun a Lee, Daehwan Jang
  • Publication number: 20220399299
    Abstract: A display device includes a substrate including a display area and a pad area, a plurality of pad electrodes disposed in the pad area on the substrate, a circuit board disposed to overlap at least a portion of the pad area on the substrate, and an anisotropic conductive layer disposed in the pad area between the substrate and the circuit board. The circuit board includes a base substrate and a plurality of bump electrodes disposed on a lower surface of the base substrate. The anisotropic conductive layer includes an adhesive layer and a plurality of conductive particles arranged in the adhesive layer. Each of the conductive particles includes a core, a first conductive film disposed on the core in a way such that at least a portion of the core is exposed, and a second conductive film entirely covering the core and the first conductive film.
    Type: Application
    Filed: April 11, 2022
    Publication date: December 15, 2022
    Inventors: BYOUNGYONG KIM, DAEHYUK IM, SEUNG-SOO RYU, HEEJU WOO
  • Publication number: 20210375804
    Abstract: The invention relates to display device and method of manufacturing the same. The display device includes: a substrate; a driving pad disposed on the substrate; an insulating layer exposing the driving pad and disposed on the substrate; a circuit board including a circuit pad overlapping the driving pad; and a connector disposed between the circuit board and the insulating layer and including a plurality of conductive particles electrically connecting the driving pad and the circuit pad, the driving pad including: a first pad disposed on the substrate; and a second pad disposed on the first pad and having an opening exposing the first pad.
    Type: Application
    Filed: May 11, 2021
    Publication date: December 2, 2021
    Inventors: EUI JEONG KANG, SANGHYEON SONG, HEEJU WOO, DONGHYUN LEE
  • Patent number: 11135779
    Abstract: An ultrasonic bonding apparatus includes a stage on which a display panel is seated, a first ultrasonic generation unit which is connected to the stage and vibrates in a first direction and provide a first polarization, and a second ultrasonic generation unit in which an electronic component is seated and which vibrates in a second direction that is crossed with the first direction, and provides a second polarization, where a third polarization is provided on a plane on which the display panel contacts the electronic component.
    Type: Grant
    Filed: May 29, 2020
    Date of Patent: October 5, 2021
    Assignee: SAMSUNG DISPLAY CO., LTD.
    Inventors: Hyun a Lee, Chan-Jae Park, Heeju Woo, Kikyung Youk, Sangduk Lee, Daehwan Jang
  • Publication number: 20210151543
    Abstract: A method for manufacturing a display device includes providing an electronic component between a plurality of bumps, providing a display panel, aligning the electronic component and the display panel, and applying ultrasonic waves to bond the plurality of bumps to signal pads. In providing first adhesive members, at least a portion of a top surface of each of the plurality of bumps is exposed between the first adhesive members.
    Type: Application
    Filed: July 31, 2020
    Publication date: May 20, 2021
    Inventors: Chan-Jae PARK, Sangduk LEE, Heeju WOO, Kikyung YOUK, Hyun a LEE, Daehwan JANG
  • Publication number: 20210094238
    Abstract: An ultrasonic bonding apparatus includes a stage on which a display panel is seated, a first ultrasonic generation unit which is connected to the stage and vibrates in a first direction and provide a first polarization, and a second ultrasonic generation unit in which an electronic component is seated and which vibrates in a second direction that is crossed with the first direction, and provides a second polarization, where a third polarization is provided on a plane on which the display panel contacts the electronic component.
    Type: Application
    Filed: May 29, 2020
    Publication date: April 1, 2021
    Inventors: Hyun a LEE, Chan-Jae PARK, Heeju WOO, Kikyung YOUK, Sangduk LEE, Daehwan JANG