Patents by Inventor CHANGKYU JIN

CHANGKYU JIN 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: 20200013337
    Abstract: A display apparatus with improved light emission uniformity includes a pixel. The pixel includes a driving thin-film transistor (TFT); a storage capacitor; a driving semiconductor layer; a first electrode layer; a second electrode layer; a pixel electrode; a pixel-defining layer defining a light-emitting region; and a conductive layer interposed between the first electrode layer and the pixel electrode and including an extending portion that at least partially overlaps the light-emitting region in a plane view to pass over a central portion of the light-emitting region.
    Type: Application
    Filed: May 8, 2019
    Publication date: January 9, 2020
    Inventors: Youngjin Cho, Joongsoo Moon, Minwoo Byun, Yangwan Kim, Changkyu Jin
  • Publication number: 20200006461
    Abstract: A display apparatus including a substrate, a first power source line disposed in a peripheral area adjacent to a display area configured to display image, the first power source line including a first layer and a second layer disposed on the first layer and electrically connected to the first layer, a first insulation layer disposed between the first layer and the second layer of the first power source line, and a first insulating dam disposed on and contacting the second layer of the first power source line, the first insulating dam disposed in the peripheral area and surrounding the display area.
    Type: Application
    Filed: April 10, 2019
    Publication date: January 2, 2020
    Inventors: Youngjin Cho, Joong-Soo Moon, Cheol-Gon Lee, Yang Wan Kim, Changkyu Jin
  • Patent number: 10439017
    Abstract: A display apparatus includes a substrate having a first area, a second area, and a bending area disposed therebetween. The substrate is bent at the bending area about a bending axis. An inorganic insulating layer is disposed over the substrate and includes an opening or groove corresponding to the bending area. An organic material layer fills the opening or groove. A first conductive layer extends from the first area to the second area through the bending area. The first conductive layer is disposed over the organic material layer and includes a multipath portion having a plurality of through holes. A length of the multipath portion, in a direction from the first area to the second area, is greater than a width of the opening or groove, in the direction from the first area to the second area.
    Type: Grant
    Filed: December 5, 2017
    Date of Patent: October 8, 2019
    Assignee: SAMSUNG DISPLAY CO., LTD.
    Inventors: Dongsoo Kim, Wonkyu Kwak, Kwangmin Kim, Kiwook Kim, Joongsoo Moon, Hyunae Park, Jieun Lee, Changkyu Jin
  • Publication number: 20190267444
    Abstract: A display apparatus includes a substrate having a display area and a peripheral area, wirings over the peripheral area that extend in a first through third areas, an interval between the wirings in the second area is greater than an interval between the wirings in each of the first and third areas, an insulating layer covering the wirings and having a first uneven surface corresponding to the wirings, a first conductive layer over the insulating layer and including a second uneven surface corresponding to the first uneven surface, a flat planarization layer over the first conductive layer and exposing at least a portion of the first conductive layer, a second conductive layer electrically connected to the first conductive layer, at least a portion of the second conductive layer is over the planarization layer, and a polarization plate on the second conductive layer.
    Type: Application
    Filed: January 31, 2019
    Publication date: August 29, 2019
    Inventors: Joongsoo MOON, Kwangmin KIM, Yangwan KIM, Cheolgon LEE, Youngjin CHO, Changkyu JIN
  • Publication number: 20190221617
    Abstract: A display apparatus includes a substrate, a display unit, a first wire unit, and a dummy unit. The substrate includes a first area, a second area, and a bending area. The bending area is disposed between a first area and a second area. The display unit is disposed in the first area. The first wire unit is electrically connected to the display unit and includes a plurality of first wires disposed on the substrate over the first area, the bending area, and the second area. The plurality of first wires include a plurality of holes disposed in the bending area and spaced apart from each other by a first pitch. The dummy wire unit includes a plurality of dummy wires disposed in the bending area.
    Type: Application
    Filed: March 26, 2019
    Publication date: July 18, 2019
    Inventors: CHANGKYU JIN, Wonkyu Kwak, Kwangmin Kim, Kiwook Kim, Dongsoo Kim, Joongsoo Moon, Hyunae Park, Jieun Lee
  • Publication number: 20190206966
    Abstract: A display device including a first data line and a second data line extending along a first direction, a first transistor connected to the first data line, a second transistor connected to the first transistor, a third transistor electrically connected to the second transistor, a connecting line disposed between the first data line and the second data line, the connecting line connecting the second transistor to the third transistor, and a driving voltage line disposed on the connecting line, the driving voltage line extending between the first data line and the connecting line.
    Type: Application
    Filed: August 2, 2018
    Publication date: July 4, 2019
    Inventors: Kiwook Kim, Kwang-Min Kim, Joong-Soo Moon, Changkyu Jin
  • Patent number: 10243024
    Abstract: A display apparatus includes a substrate, a display unit, a first wire unit, and a dummy unit. The substrate includes a first area, a second area, and a bending area. The bending area is disposed between a first area and a second area. The display unit is disposed in the first area. The first wire unit is electrically connected to the display unit and includes a plurality of first wires disposed on the substrate over the first area, the bending area, and the second area. The plurality of first wires include a plurality of holes disposed in the bending area and spaced apart from each other by a first pitch. The dummy wire unit includes a plurality of dummy wires disposed in the bending area.
    Type: Grant
    Filed: January 15, 2018
    Date of Patent: March 26, 2019
    Assignee: SAMSUNG DISPLAY CO., LTD.
    Inventors: Changkyu Jin, Wonkyu Kwak, Kwangmin Kim, Kiwook Kim, Dongsoo Kim, Joongsoo Moon, Hyunae Park, Jieun Lee
  • Publication number: 20180315809
    Abstract: A display apparatus includes a substrate having a first area, a second area, and a bending area disposed therebetween. The substrate is bent at the bending area about a bending axis. An inorganic insulating layer is disposed over the substrate and includes an opening or groove corresponding to the bending area. An organic material layer fills the opening or groove. A first conductive layer extends from the first area to the second area through the bending area. The first conductive layer is disposed over the organic material layer and includes a multipath portion having a plurality of through holes. A length of the multipath portion, in a direction from the first area to the second area, is greater than a width of the opening or groove, in the direction from the first area to the second area.
    Type: Application
    Filed: December 5, 2017
    Publication date: November 1, 2018
    Inventors: Dongsoo KIM, Wonkyu Kwak, Kwangmin Kim, Kiwook Kim, Joongsoo Moon, Hyunae Park, Jieun Lee, Changkyu Jin
  • Patent number: 10109704
    Abstract: A display device includes a substrate divided into an encapsulation area and a non-encapsulation area. The display device includes an interlayer insulating layer disposed over the substrate. The display device includes a first inner contact hole passing through the interlayer insulating layer in the encapsulation area, and connecting an inner conductive layer to an inner lower conductive layer. The display device includes an outer contact hole passing through the interlayer insulating layer in the non-encapsulation area, and connecting an outer conductive layer to an outer lower conductive layer. A slope angle formed by a lateral wall of the outer contact hole with respect to an upper surface of the substrate is less than a slope angle formed by a lateral wall of the first inner contact hole with respect to the upper surface of the substrate.
    Type: Grant
    Filed: October 19, 2016
    Date of Patent: October 23, 2018
    Assignee: SAMSUNG DISPLAY CO., LTD.
    Inventors: Hyejin Shin, Wonkyu Kwak, Kwangmin Kim, Dongsoo Kim, Changkyu Jin
  • Publication number: 20180301520
    Abstract: A display apparatus includes a substrate, a display unit, a first wire unit, and a dummy unit. The substrate includes a first area, a second area, and a bending area. The bending area is disposed between a first area and a second area. The display unit is disposed in the first area. The first wire unit is electrically connected to the display unit and includes a plurality of first wires disposed on the substrate over the first area, the bending area, and the second area. The plurality of first wires include a plurality of holes disposed in the bending area and spaced apart from each other by a first pitch. The dummy wire unit includes a plurality of dummy wires disposed in the bending area.
    Type: Application
    Filed: January 15, 2018
    Publication date: October 18, 2018
    Inventors: Changkyu Jin, Wonkyu Kwak, Kwangmin Kim, Kiwook Kim, Dongsoo Kim, Joongsoo Moon, Hyunae Park, Jieun Lee
  • Publication number: 20180287093
    Abstract: An organic light-emitting display apparatus includes a substrate having a display area displaying an image and a periphery area. The periphery area is located next to the display area. A first organic insulating layer is disposed on the substrate. The first organic insulating layer includes a valley portion separating the first organic insulating layer from the periphery area. A plurality of organic light-emitting devices is disposed on the substrate. Each of the organic light-emitting devices includes a first electrode, an emission layer, and a second electrode, sequentially disposed over the first organic insulating layer. The second electrode covers the emission layer and the valley portion. A second organic insulating layer is disposed over the first organic insulating layer and includes a first opening exposing a center portion of the first electrode and a second opening overlapping the valley portion. A capping layer covers the second electrode.
    Type: Application
    Filed: March 27, 2018
    Publication date: October 4, 2018
    Inventors: Jieun Lee, Wonkyu Kwak, Kwangmin Kim, Kiwook Kim, Dongsoo Kim, Joongsoo Moon, Hyunae Park, Changkyu Jin
  • Publication number: 20180286925
    Abstract: An organic light emitting display device includes: a substrate including pixel areas and a pixel separating area; a plurality of pixels; a plurality of spacers in the pixel separating area and spaced apart from each other; and a touch electrode unit disposed over the plurality of pixels and spacers. The touch electrode unit includes first touch electrodes arranged in a first direction and second touch electrodes arranged in a second direction. The touch electrode unit includes a plurality of touch pattern unit blocks repeatedly arranged. Each touch pattern unit block includes portions of each of neighboring first touch electrodes and portions of each of neighboring second touch electrodes. The spacers of each touch pattern unit block corresponds to a plurality of spacer pattern unit blocks repeatedly arranged. Each spacer pattern unit includes at least one spacer and is smaller than the touch pattern unit block.
    Type: Application
    Filed: December 6, 2017
    Publication date: October 4, 2018
    Inventors: Kwangmin Kim, Wonkyu Kwak, Kiwook Kim, Dongsoo Kim, Joongsoo Moon, Hyunae Park, Jieun Lee, Changkyu Jin
  • Publication number: 20180286938
    Abstract: A display apparatus includes: a substrate having a bending area between a first area and a second area; internal conductive lines on the substrate in the first area; external conductive lines on the substrate in the second area; an organic material layer covering the bending area and covering at least a portion of the internal conductive lines and the external conductive lines; and connection lines on the organic material layer and connecting the internal conductive lines to the external conductive lines, respectively. Organic through-holes are defined through the organic material layer, the connection lines are respectively connected to the internal conductive lines through the organic through-holes, and an upper surface of the organic material layer between the organic through-holes has a convex curved shape.
    Type: Application
    Filed: February 23, 2018
    Publication date: October 4, 2018
    Inventors: Joongsoo Moon, Wonkyu Kwak, Kwangmin Kim, Kiwook Kim, Dongsoo Kim, Hyunae Park, Jieun Lee, Changkyu Jin
  • Publication number: 20180269269
    Abstract: A display apparatus includes a substrate including a display region and a non-display region, a display element layer, a pad group, a touch electrode layer, and a touch insulating layer. The display element layer includes display elements provided in the display region in a plan view. The pad group may include output pads provided on substrate and provided in the non-display region in the plan view. The touch electrode layer is provided on the display element layer. The touch insulating layer is provided on the display element layer and contacts the touch electrode layer. An intaglio pattern is provided in the touch insulating layer overlapped with the non-display region, and the intaglio pattern is not overlapped with the pad group.
    Type: Application
    Filed: March 14, 2018
    Publication date: September 20, 2018
    Inventors: Kiwook KIM, Kyongtae PARK, Hyesong KWUN, Dae-won LEE, Donghoon JEONG, Won-kyu KWAK, Kwangmin KIM, JoongSoo MOON, Changkyu JIN, Kyu-sik CHO, Sungho CHO
  • Publication number: 20180097034
    Abstract: A display apparatus includes: a substrate having a display area and a peripheral area outside the display area; a first insulating layer over both the display area and the peripheral area; a first dam over the peripheral area and spaced apart from the first insulating layer; an electrode power supply line, at least a part of the electrode power supply line being located between the first insulating layer and the first dam; a protection conductive layer over the first insulating layer, the protection conductive layer extending over the electrode power supply line and electrically connected to the electrode power supply line; a pixel electrode over the first insulating layer in the display area; an opposite electrode over the pixel electrode; and a capping layer covering the opposite electrode and extending outside the opposite electrode such that an end of the capping layer is on the first insulating layer.
    Type: Application
    Filed: September 29, 2017
    Publication date: April 5, 2018
    Inventors: Haeyeon Lee, Dongsoo Kim, Donghoon Lee, Jieun Lee, Changkyu Jin
  • Publication number: 20170288007
    Abstract: A display device includes a substrate divided into an encapsulation area and a non-encapsulation area. The display device includes an interlayer insulating layer disposed over the substrate. The display device includes a first inner contact hole passing through the interlayer insulating layer in the encapsulation area, and connecting an inner conductive layer to an inner lower conductive layer. The display device includes an outer contact hole passing through the interlayer insulating layer in the non-encapsulation area, and connecting an outer conductive layer to an outer lower conductive layer. A slope angle formed by a lateral wall of the outer contact hole with respect to an upper surface of the substrate is less than a slope angle formed by a lateral wall of the first inner contact hole with respect to the upper surface of the substrate.
    Type: Application
    Filed: October 19, 2016
    Publication date: October 5, 2017
    Inventors: HYEJIN SHIN, WONKYU KWAK, KWANGMIN KIM, DONGSOO KIM, CHANGKYU JIN