Patents by Inventor Chan-Jae Park

Chan-Jae Park 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: 11959819
    Abstract: Provided is a strain sensor. The strain sensor according to embodiments of the inventive concept includes a flexible substrate, rigid patterns on the flexible substrate, the rigid patterns including a first pattern and a second pattern spaced apart from the first pattern in a first direction, a first electrode on the first pattern, a second electrode on the second pattern, the second electrode being spaced apart from the first electrode, and a piezoresistive layer connecting the first electrode and the second electrode. Here, each of the rigid patterns may have a stiffness greater than that of the flexible substrate.
    Type: Grant
    Filed: May 11, 2021
    Date of Patent: April 16, 2024
    Assignee: ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE
    Inventors: Su Jae Lee, Seong Hyun Kim, Chan Woo Park, Jae Bon Koo, Bock Soon Na, Ji-Young Oh
  • Publication number: 20240103583
    Abstract: A display device includes a display panel that includes a foldable area and a non-foldable area adjacent to the foldable area, and a first support member disposed under the display panel. The first support member includes a fabric that includes a flexible portion that overlaps the foldable area and a rigid portion that overlaps the non-foldable area. The rigid portion is woven differently from the flexible portion and contains fiber reinforced plastic.
    Type: Application
    Filed: June 23, 2023
    Publication date: March 28, 2024
    Inventors: KYUNG-MAN KIM, CHAN-JAE PARK, SUNOK OH
  • Patent number: 11917875
    Abstract: A display device includes a substrate including an active area having pixels and a non-active area including a pad region. A pad electrode is disposed in the pad region and includes a first pad electrode and a second pad electrode disposed on the first pad electrode. A first insulating pattern is interposed between the first and second pad electrodes. In a plan view, the first insulating pattern is positioned inside the first pad electrode, and a portion of the second pad electrode overlapping the first insulating pattern protrudes further from the substrate in a thickness direction than a portion of the second pad electrode not overlapping the first insulating pattern. The second pad electrode directly contacts a portion of the upper surface of the first pad electrode. In a plan view, an area of the second pad electrode is greater than an area of the first pad electrode.
    Type: Grant
    Filed: December 29, 2021
    Date of Patent: February 27, 2024
    Assignee: SAMSUNG DISPLAY CO., LTD.
    Inventors: Ki Kyung Youk, Chan Jae Park, Min Soo Kim, Yoon A Kim, Sang Duk Lee, Chel Gou Lim
  • Publication number: 20240062692
    Abstract: The present application relates to a display device and a method of providing the same. A display device includes a display panel which is bendable, the display panel including a bending area and a pad area which is adjacent to the bending area, and a lower layer extending along the pad area of the display panel. The lower layer includes a lower film layer defining an opening at the pad area, the opening exposing a portion of the pad area to outside the lower film layer, and a step compensation member which is in the opening of the lower film layer and on the portion of the pad area which is exposed to outside the lower film layer.
    Type: Application
    Filed: October 31, 2023
    Publication date: February 22, 2024
    Inventors: Sang Duk LEE, Chan Jae PARK
  • Patent number: 11842663
    Abstract: The present application relates to a display device and a method of providing the same. A display device includes a display panel which is bendable, the display panel including a bending area and a pad area which is adjacent to the bending area, and a lower layer extending along the pad area of the display panel. The lower layer includes a lower film layer defining an opening at the pad area, the opening exposing a portion of the pad area to outside the lower film layer, and a step compensation member which is in the opening of the lower film layer and on the portion of the pad area which is exposed to outside the lower film layer.
    Type: Grant
    Filed: December 12, 2022
    Date of Patent: December 12, 2023
    Assignee: SAMSUNG DISPLAY CO., LTD.
    Inventors: Sang Duk Lee, Chan Jae Park
  • Patent number: 11776943
    Abstract: A display panel having a display region and a non-display region, the display panel includes: a substrate having at least one first opening; an electronic component disposed on the substrate; a plurality of pads disposed in the non-display region and including a first pad and a second pad are spaced apart from each other in a first direction with the at least one first opening therebetween; and an adhesive layer disposed between the substrate and the electronic component and overlapping the at least one first opening.
    Type: Grant
    Filed: July 1, 2021
    Date of Patent: October 3, 2023
    Assignee: Samsung Display Co., Ltd.
    Inventors: Hyun A Lee, Sunok Oh, Kikyung Youk, Chan-Jae Park, Sangduk Lee, Soo Yeon Han
  • Patent number: 11720143
    Abstract: An adhesive member is between an electronic component and an electronic panel that are connected to each other through the adhesive member. The adhesive member has a second surface and a first surface. The adhesive member includes a first recess pattern recessed from the first surface and a second recess pattern recessed from the first surface. The second recess pattern is spaced apart in a first direction from the first recess pattern. A sum of a planar area of the first recess pattern and a planar area of the second recess pattern ranges from about 20 percent (%) to about 70% of a planar area of the first surface.
    Type: Grant
    Filed: September 14, 2020
    Date of Patent: August 8, 2023
    Assignee: SAMSUNG DISPLAY CO., LTD.
    Inventors: Daehwan Jang, Hyun a Lee, Chan-Jae Park, Sunok Oh, Kikyung Youk, Sangduk Lee
  • Patent number: 11694990
    Abstract: A display device includes a display panel including a display area and a non-display area defined therein and including a plurality of signal pads overlapping the non-display area, an electronic component including a base layer with an upper surface and a lower surface, a plurality of driving pads disposed on the lower surface of the base layer, and a plurality of driving bumps respectively disposed on the plurality of driving pads, the plurality of driving bumps being respectively connected to the signal pads, and a filler disposed between the display panel and the electronic component. A first hole is defined in the upper surface of the base layer, and the first hole does not overlap the plurality of driving bumps in a plan view.
    Type: Grant
    Filed: June 28, 2022
    Date of Patent: July 4, 2023
    Assignee: SAMSUNG DISPLAY CO., LTD.
    Inventors: Chan-Jae Park, Kikyung Youk, Sangduk Lee, Hyun a Lee, Daehwan Jang
  • Publication number: 20230196958
    Abstract: The present application relates to a display device and a method of providing the same. A display device includes a display panel which is bendable, the display panel including a bending area and a pad area which is adjacent to the bending area, and a lower layer extending along the pad area of the display panel. The lower layer includes a lower film layer defining an opening at the pad area, the opening exposing a portion of the pad area to outside the lower film layer, and a step compensation member which is in the opening of the lower film layer and on the portion of the pad area which is exposed to outside the lower film layer.
    Type: Application
    Filed: December 12, 2022
    Publication date: June 22, 2023
    Inventors: Sang Duk LEE, Chan Jae PARK
  • Publication number: 20230180569
    Abstract: A display device includes: a display area; and a non-display area on at least one side of the display area, wherein the display area comprises: a plurality of rigid areas, in each of which at least one unit pixel comprising a plurality of sub-pixels is defined by a partition wall; and a stretchable area in which elastic connection members are formed between the plurality of rigid areas to enable a distance between the plurality of rigid areas to be increased or decreased.
    Type: Application
    Filed: November 29, 2022
    Publication date: June 8, 2023
    Inventors: Chan Jae PARK, Sun Hee OH
  • Publication number: 20230057934
    Abstract: A bonding apparatus includes an ultrasonic oscillator which generates ultrasonic vibration, a stage disposed under the ultrasonic oscillator, and an embossed sheet disposed between the ultrasonic oscillator and the stage. The embossed sheet includes a body and a plurality of protrusions protruding downward from a lower surface of the body which faces the stage.
    Type: Application
    Filed: August 3, 2022
    Publication date: February 23, 2023
    Inventors: SANGDUK LEE, CHAN-JAE PARK
  • 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
  • Patent number: 11495713
    Abstract: A pixel includes a first electrode and a second electrode spaced from each other in a first direction on a substrate; a plurality of light emitting elements between the first electrode and the second electrode; an intermediate pattern located between the first electrode and the second electrode in the first direction and located between the substrate and the plurality of light emitting elements in a thickness direction of the substrate; a first contact electrode electrically connecting one end portion of each of the light emitting elements and the first electrode; and a second contact electrode electrically connecting an other end portion of each of the light emitting elements and the second electrode.
    Type: Grant
    Filed: December 15, 2020
    Date of Patent: November 8, 2022
    Assignee: Samsung Display Co., Ltd.
    Inventors: Chan Jae Park, Haeng Won Park, Sang Duk Lee
  • Publication number: 20220352290
    Abstract: A display apparatus includes a display panel having a display region and a non-display region and including a plurality of panel pads disposed in the non-display region, a flexible circuit board including a plurality of connection pads overlapping the plurality of panel pads, and a bonding layer disposed between the display panel and the flexible circuit board and including a conductive polymer, wherein the bonding layer includes a plurality of conductive portions overlapping the plurality of panel pads and the plurality of connection pads and having a first conductivity value, and a plurality of non-conductive portions not overlapping the plurality of panel pads and the plurality of connection pads and having a second conductivity value smaller than the first conductivity value.
    Type: Application
    Filed: March 5, 2020
    Publication date: November 3, 2022
    Inventors: Chan-Jae PARK, Kikyung YOUK, Sangduk LEE, Hyun A LEE, Daehyuk IM
  • Publication number: 20220328451
    Abstract: A display device includes a display panel including a display area and a non-display area defined therein and including a plurality of signal pads overlapping the non-display area, an electronic component including a base layer with an upper surface and a lower surface, a plurality of driving pads disposed on the lower surface of the base layer, and a plurality of driving bumps respectively disposed on the plurality of driving pads, the plurality of driving bumps being respectively connected to the signal pads, and a filler disposed between the display panel and the electronic component. A first hole is defined in the upper surface of the base layer, and the first hole does not overlap the plurality of driving bumps in a plan view.
    Type: Application
    Filed: June 28, 2022
    Publication date: October 13, 2022
    Inventors: Chan-Jae PARK, Kikyung YOUK, Sangduk LEE, Hyun a LEE, Daehwan JANG
  • Publication number: 20220317489
    Abstract: A display device includes an electronic component comprising a bump, which includes a first bump portion and a second bump portion that has a surface area less than that of the first bump portion on a plane to surround the first bump portion, a display panel facing the electronic component and including a signal pad that is in contact with the bump, and an adhesive member which is disposed between the display panel and the electronic component and in which an opening overlapping the first bump portion on the plane is defined, wherein the bump is in contact with the signal pad through the opening.
    Type: Application
    Filed: July 15, 2020
    Publication date: October 6, 2022
    Inventors: Sangduk LEE, Chan-Jae PARK, Kikyung YOUK, HYUN A LEE, Daehwan JANG
  • Patent number: 11446878
    Abstract: An ultrasonic bonding apparatus includes a stage having an upper surface on a plane defined by a first direction and a second direction crossing the first direction, a head part spaced apart from the stage in a third direction crossing the first direction and the second direction, a first ultrasonic generator which vibrates in a direction parallel to the first direction, and a second ultrasonic generator which vibrates in a direction parallel to the third direction, where each of the first ultrasonic generator and the second ultrasonic generator may be coupled to the stage or the head part.
    Type: Grant
    Filed: July 29, 2021
    Date of Patent: September 20, 2022
    Assignee: SAMSUNG DISPLAY CO., LTD.
    Inventors: Chan-Jae Park, Minsoo Kim, Yoona Kim, Soo Yeon Han, Sunok Oh, Kikyung Youk, Sangduk Lee, Hyun A Lee
  • Publication number: 20220278088
    Abstract: A display panel comprising a display substrate having a display area and a pad area disposed around the display area. A connection wire is disposed on the pad area of the display substrate. A signal wire is disposed on the connection wire. A supporter is disposed between the display substrate and the connection wire. The connection wire directly contacts the supporter.
    Type: Application
    Filed: June 26, 2020
    Publication date: September 1, 2022
    Inventors: Chan Jae PARK, Sang Duk LEE, Hyun A LEE, Dae Hwan JANG
  • Patent number: 11410967
    Abstract: A display device includes a display panel including a display area and a non-display area defined therein and including a plurality of signal pads overlapping the non-display area, an electronic component including a base layer with an upper surface and a lower surface, a plurality of driving pads disposed on the lower surface of the base layer, and a plurality of driving bumps respectively disposed on the plurality of driving pads, the plurality of driving bumps being respectively connected to the signal pads, and a filler disposed between the display panel and the electronic component. A first hole is defined in the upper surface of the base layer, and the first hole does not overlap the plurality of driving bumps in a plan view.
    Type: Grant
    Filed: July 30, 2020
    Date of Patent: August 9, 2022
    Assignee: SAMSUNG DISPLAY CO., LTD.
    Inventors: Chan-Jae Park, Kikyung Youk, Sangduk Lee, Hyun a Lee, Daehwan Jang
  • Publication number: 20220208941
    Abstract: A display device includes a display panel including a plurality of pad electrodes, a driving member attached to the display panel and including a plurality of bumps facing the plurality of pad electrodes, respectively, a plurality of conductive particles interposed between the display panel and the driving member, and a plurality of alignment electrodes separated from the plurality of pad electrodes and the plurality of bumps, where an opening is defined in at least one of a pad electrode of the plurality of pad electrodes and a bump of the plurality of bumps includes an opening, and an alignment electrode of the plurality of alignment electrodes is disposed in the opening.
    Type: Application
    Filed: December 30, 2021
    Publication date: June 30, 2022
    Inventors: Sang Duk LEE, Mi Sun KIM, Min Soo KIM, Yoon A. KIM, Chan Jae PARK, Sun Ok OH, Ki Kyung YOUK, Hyun A. LEE, Chel Gou LIM, Soo Yeon HAN