Patents by Inventor Ki-Kyung YOUK

Ki-Kyung YOUK 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: 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: 20220392979
    Abstract: A display device comprises a display panel including a display area including pixels, and a pad area adjacent to the display area, and a driving integrated circuit mounted on the pad area, wherein the pad area includes a stud pad area located at an edge of the pad area and including at least one stud pad electrode, the driving integrated circuit includes a circuit base, and at least one stud bump area overlapping the stud pad area in a thickness direction of the display device and including at least one stud bump, and the at least one stud pad electrode overlaps an edge portion of the at least one stud bump.
    Type: Application
    Filed: May 3, 2022
    Publication date: December 8, 2022
    Applicant: Samsung Display Co., LTD.
    Inventors: Sang Duk LEE, Hyun A LEE, Mi Sun KIM, Sun Ok OH, Ki Kyung YOUK
  • 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
  • Publication number: 20220208940
    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: Application
    Filed: December 29, 2021
    Publication date: June 30, 2022
    Inventors: Ki Kyung YOUK, Chan Jae PARK, Min Soo KIM, Yoon A KIM, Sang Duk LEE, Chel Gou LIM
  • Publication number: 20220028962
    Abstract: A display device includes: a first conductive layer including a signal line, which includes a pad contact part and a line part having a smaller width than the pad contact part along a first direction and extending from the pad contact part in a second direction that intersects the first direction, and a first non-contact pattern, which is spaced apart from the pad contact part, on a first side along the first direction; an insulating layer on the first conductive layer and including a contact hole that partially exposes the first conductive layer; and a second conductive layer on the insulating layer and including a first pad electrode, which is electrically connected to the first conductive layer through the contact hole, wherein the first pad electrode overlaps with the pad contact part and the first non-contact pattern.
    Type: Application
    Filed: July 7, 2021
    Publication date: January 27, 2022
    Inventors: Chan Jae PARK, Sang Duk LEE, Sun Ok OH, Ki Kyung YOUK, Hyun A LEE, Soo Yeon HAN
  • Patent number: 11031446
    Abstract: An electronic device includes a substrate; and a pad area on the substrate, the pad area including: a first pad part including a first pad terminal; a second pad part on a side of the first pad part in a first direction and including a second pad terminal; and a third pad part on the other side of the first pad part in the first direction and including a third pad terminal, each of the first pad terminal, the second pad terminal and the third pad terminal including a first long side, a second long side facing the first long side, and at least one bridge extending from the first long side to the second long side, the first long side of the first pad terminal extending in a second direction intersecting the first direction.
    Type: Grant
    Filed: April 24, 2019
    Date of Patent: June 8, 2021
    Assignee: Samsung Display Co., Ltd.
    Inventors: Jung Yun Jo, Ki Kyung Youk
  • Patent number: 10649251
    Abstract: A method of manufacturing a curved liquid crystal display is provided. The method includes forming a first display panel including a plurality of first patterns, forming a second display panel including a plurality of second patterns, assembling the first display panel and the second display panel, filling a liquid crystal between the assembled first and second display panels to form a flat liquid crystal display, and curving the flat liquid crystal display in a first direction to form the curved liquid crystal display. The first patterns and the second patterns are mismatched in the flat liquid crystal display, and the first patterns and the second patterns are matched in the curved liquid crystal display.
    Type: Grant
    Filed: October 26, 2015
    Date of Patent: May 12, 2020
    Assignee: Samsung Display Co., Ltd.
    Inventors: O Sung Seo, Hyun-Ho Kang, Young Goo Song, Seung Jun Yu, Ha Won Yu, Ki Kyung Youk, Sang-Myoung Lee, Tae Kyung Yim
  • Publication number: 20190348485
    Abstract: An electronic device includes a substrate; and a pad area on the substrate, the pad area including: a first pad part including a first pad terminal; a second pad part on a side of the first pad part in a first direction and including a second pad terminal; and a third pad part on the other side of the first pad part in the first direction and including a third pad terminal, each of the first pad terminal, the second pad terminal and the third pad terminal including a first long side, a second long side facing the first long side, and at least one bridge extending from the first long side to the second long side, the first long side of the first pad terminal extending in a second direction intersecting the first direction.
    Type: Application
    Filed: April 24, 2019
    Publication date: November 14, 2019
    Inventors: Jung Yun JO, Ki Kyung YOUK
  • Patent number: 10371993
    Abstract: A curved liquid crystal display includes a first panel having a pixel electrode including crossed stem parts, a plurality of fine branch parts extending from the crossed stem parts, and fine slits positioned between fine branch parts adjacent to each other, a second panel having a common electrode, and a liquid crystal layer between the first panel and the second panel. Misalignment between the first panel and the second lower panel is determined and a pitch, which is a sum of a width of the fine branch part and a width of the fine slit, gradually increases from a region having a small misalignment toward a region having a large misalignment.
    Type: Grant
    Filed: April 26, 2017
    Date of Patent: August 6, 2019
    Assignee: Samsung Display Co., Ltd.
    Inventors: Hyun-Ho Kang, O Sung Seo, Seung Jun Yu, Ha Won Yu, Ki Kyung Youk, Yeo Geon Yoon, Sang-Myoung Lee, Tae Kyung Yim
  • Patent number: 10229935
    Abstract: A display device according to an exemplary embodiment of the present inventive concept includes: a first insulation substrate; a thin film transistor disposed on the first insulation substrate; a pixel electrode coupled to the thin film transistor; a second insulation substrate facing the first insulation substrate; and a common electrode disposed on the second insulation substrate. The pixel electrode includes a first subpixel electrode including a first vertical stem portion and a first horizontal stem portion that is disposed perpendicular to the first vertical stem portion at an end of the first vertical stem portion, and a second subpixel electrode including a second vertical stem portion and a second horizontal stem portion that is disposed perpendicular to the second vertical stem portion at an end of the second vertical step portion.
    Type: Grant
    Filed: April 20, 2015
    Date of Patent: March 12, 2019
    Assignee: Samsung Display Co., Ltd.
    Inventors: O Sung Seo, Hyun-Ho Kang, Young Goo Song, Seung Jun Yu, Ha Won Yu, Ki Kyung Youk, Sang Myoung Lee, Tae Kyung Yim
  • Patent number: 10114422
    Abstract: A cover panel and a display device, the cover panel including a heat sink layer; an impact absorbing layer on the heat sink layer; and an elastic pattern on at least one side of the impact absorbing layer.
    Type: Grant
    Filed: August 17, 2017
    Date of Patent: October 30, 2018
    Assignee: SAMSUNG DISPLAY CO., LTD.
    Inventors: Seung Chan Lee, Jong Deok Park, Byung Wook Ahn, Ki Kyung Youk, Jee Hun Lim, Suk Won Jung, Won Joon Choi, Jeong Ho Hwang
  • Patent number: 10062345
    Abstract: A curved liquid crystal display (LCD) includes a curved liquid crystal panel assembly. The curved liquid crystal panel assembly includes: a lower panel including a first linear polarizer having a first polarization axis; an upper panel including a second linear polarizer having a second polarization axis, the second polarization axis cross the first polarization axis in a plan view; and a liquid crystal layer interposed between the lower panel and the upper panel. An angle formed by a first polarization axis and a second polarization axis does not meet at a right angle in a plan view.
    Type: Grant
    Filed: July 25, 2017
    Date of Patent: August 28, 2018
    Assignee: SAMSUNG DISPLAY CO., LTD.
    Inventors: Tae Kyung Yim, Hyun Ho Kang, O Sung Seo, Seung Jun Yu, Ha Won Yu, Ki Kyung Youk, Yeo Geon Yoon, Sang Myoung Lee
  • Patent number: 9995972
    Abstract: A display device according to an exemplary embodiment of the present inventive concept includes: a first insulation substrate; a thin film transistor; a pixel electrode; a second insulation substrate; and a common electrode. The pixel electrode includes a first subpixel electrode including a first horizontal stem portion and a first vertical stem portion perpendicular thereto at one end of the first horizontal stem portion and a second subpixel electrode including a second vertical stem portion and a second horizontal stem portion perpendicular thereto at one end of the second horizontal stem portion, a plurality of regions in which arrangements of liquid crystal molecules are respectively different are divided by the first horizontal stem portion, the first vertical stem portion, the second horizontal stem portion, and the second vertical stem portion, and each of the plurality of regions has a longest vertical length of less than about 100 ?m.
    Type: Grant
    Filed: September 9, 2015
    Date of Patent: June 12, 2018
    Assignee: SAMSUNG DISPLAY CO., LTD.
    Inventors: O Sung Seo, Hyun-Ho Kang, Seung Jun Yu, Ha Won Yu, Ki Kyung Youk, Yeo Geon Yoon, Sang-Myoung Lee, Tae Kyung Yim
  • Publication number: 20180074556
    Abstract: A cover panel and a display device, the cover panel including a heat sink layer; an impact absorbing layer on the heat sink layer; and an elastic pattern on at least one side of the impact absorbing layer.
    Type: Application
    Filed: August 17, 2017
    Publication date: March 15, 2018
    Inventors: Seung Chan LEE, Jong Deok PARK, Byung Wook AHN, Ki Kyung YOUK, Jee Hun LIM, Suk Won JUNG, Won Joon CHOI, Jeong Ho HWANG
  • Publication number: 20170323607
    Abstract: A curved liquid crystal display (LCD) includes a curved liquid crystal panel assembly. The curved liquid crystal panel assembly includes: a lower panel including a first linear polarizer having a first polarization axis; an upper panel including a second linear polarizer having a second polarization axis, the second polarization axis cross the first polarization axis in a plan view; and a liquid crystal layer interposed between the lower panel and the upper panel. An angle formed by a first polarization axis and a second polarization axis does not meet at a right angle in a plan view.
    Type: Application
    Filed: July 25, 2017
    Publication date: November 9, 2017
    Inventors: Tae Kyung YIM, Hyun Ho KANG, O Sung SEO, Seung Jun YU, Ha Won YU, Ki Kyung YOUK, Yeo Geon YOON, Sang Myoung LEE
  • Patent number: 9766523
    Abstract: A liquid crystal display according to an exemplary embodiment of the present disclosure includes: a first substrate; a gate line formed on the first substrate and extended in a first direction; a data line extended in a second direction that is perpendicular to the gate line; switching elements connected to the gate line and the data line; a voltage-dividing reference voltage line connected to a switching element; a first sub-pixel electrode connected to a switching element; and a second sub-pixel electrode connected to a switching element, wherein the first sub-pixel electrode and the second sub-pixel electrode include one or more vertical stem parts formed on a left side or a right side thereof, and the voltage-dividing reference voltage line is formed to be parallel to the data line.
    Type: Grant
    Filed: March 4, 2016
    Date of Patent: September 19, 2017
    Assignee: Samsung Display Co., Ltd.
    Inventors: Sang-Myoung Lee, Hyun-Ho Kang, O Sung Seo, Seung Jun Yu, Ha Won Yu, Ki Kyung Youk, Yeo Geon Yoon
  • Patent number: 9746724
    Abstract: A liquid crystal display device includes a display panel including: a lower display substrate on which a plurality of pixel electrodes are disposed in a matrix and data lines extend in a column direction between adjacent pixel electrodes; an upper display substrate on which a common electrode is disposed; and a liquid crystal layer disposed between the lower display substrate and the upper display substrate and including liquid crystal molecules. The display panel includes a plurality of unit pixels, each unit pixel including pixels having different colors, and each pixel including one of the pixel electrodes. A gap between neighboring unit pixels is larger than a gap between neighboring pixel electrodes within each unit pixel, and a data line positioned between the neighboring unit pixels has a portion having a width larger than that of a data line positioned between the neighboring pixel electrodes within each unit pixel.
    Type: Grant
    Filed: September 3, 2015
    Date of Patent: August 29, 2017
    Assignee: Samsung Display Co., Ltd.
    Inventors: Ki Kyung Youk, Hyun-Ho Kang, O Sung Seo, Seung Jun Yu, Ha Won Yu, Yeo Geon Yoon, Sang-Myoung Lee, Tae Kyung Yim
  • Patent number: 9734782
    Abstract: A curved liquid crystal display (LCD) includes a curved liquid crystal panel assembly. The curved liquid crystal panel assembly includes: a lower panel including a first linear polarizer having a first polarization axis; an upper panel including a second linear polarizer having a second polarization axis, the second polarization axis cross the first polarization axis in a plan view; and a liquid crystal layer interposed between the lower panel and the upper panel. An angle formed by a first polarization axis and a second polarization axis does not meet at a right angle in a plan view.
    Type: Grant
    Filed: March 9, 2015
    Date of Patent: August 15, 2017
    Assignee: Samsung Display Co., Ltd.
    Inventors: Tae Kyung Yim, Hyun Ho Kang, O Sung Seo, Seung Jun Yu, Ha Won Yu, Ki Kyung Youk, Yeo Geon Yoon, Sang Myoung Lee
  • Patent number: 9733502
    Abstract: An exemplary embodiment provides a curved display device in which occurrences of black mura are prevented or otherwise reduced. The curved display device according to the exemplary embodiment includes a curved display panel displaying images; a rear surface cover covering and supporting a rear surface of the curved display panel; and a flexible front surface chassis supporting the curved display panel.
    Type: Grant
    Filed: February 23, 2016
    Date of Patent: August 15, 2017
    Assignee: Samsung Display Co., Ltd.
    Inventors: Sang-Myoung Lee, Hyun-Ho Kang, O Sung Seo, Seung Jun Yu, Ha Won Yu, Ki Kyung Youk, Yeo Geon Yoon, Tae Kyung Yim
  • Publication number: 20170227824
    Abstract: A curved liquid crystal display includes a first panel having a pixel electrode including crossed stem parts, a plurality of fine branch parts extending from the crossed stem parts, and fine slits positioned between fine branch parts adjacent to each other, a second panel having a common electrode, and a liquid crystal layer between the first panel and the second panel. Misalignment between the first panel and the second lower panel is determined and a pitch, which is a sum of a width of the fine branch part and a width of the fine slit, gradually increases from a region having a small misalignment toward a region having a large misalignment.
    Type: Application
    Filed: April 26, 2017
    Publication date: August 10, 2017
    Inventors: Hyun-Ho KANG, O Sung SEO, Seung Jun YU, Ha Won YU, Ki Kyung YOUK, Yeo Geon YOON, Sang-Myoung LEE, Tae Kyung YIM