Patents by Inventor Chounsung Kang

Chounsung 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).

  • Patent number: 10617017
    Abstract: A rollable display includes a flexible display panel that can be rolled up and down, a back cover that rolls up and down along with the flexible display panel, with one edge fixed to one edge of the flexible display panel, and a flexible magnet fixed to either the flexible display panel or the back cover and interposed between the flexible display panel and the back cover.
    Type: Grant
    Filed: December 9, 2016
    Date of Patent: April 7, 2020
    Assignee: LG Display Co., Ltd.
    Inventors: Jungkyu Park, Chounsung Kang, Geunchang Park
  • Publication number: 20200093011
    Abstract: A disclosed display device may include a display panel including a plurality of sub-pixels, and a back cover configured to support the display panel and configured be wound or unwound along with the display panel. The display device may further include a base plate on a first surface of the back cover to support the back cover and a top cover on a second surface of the back cover opposite the first surface so that the back cover is between the base plate and the top cover. The top cover may be fixed to the back cover. The top cover may have a curved outer peripheral surface.
    Type: Application
    Filed: September 11, 2019
    Publication date: March 19, 2020
    Applicant: LG Display Co., Ltd.
    Inventors: YoungShin LEE, ChounSung KANG, Mi-Na SHIN, SunBok SONG, GeunChang PARK
  • Publication number: 20200084897
    Abstract: A display device comprises a display panel and a back cover attached to the display panel. The back cover includes a first flexible area and a first supporting area adjacent to the first flexible area. The back cover includes a central area and an edge area at one or more lateral sides of the central area. The central area includes a plurality of first openings, and the edge area includes a plurality of second openings. The first flexible area includes a first sub-flexible area and a second sub-flexible area, the first sub-flexible area being between the first supporting area and the second sub-flexible area in a column direction. A distance between two adjacent second openings in the edge area of the first sub-flexible area is smaller than a distance between two adjacent second openings in the edge area of the second sub-flexible area.
    Type: Application
    Filed: September 4, 2019
    Publication date: March 12, 2020
    Applicant: LG Display Co., Ltd.
    Inventors: Mi-Na SHIN, ChounSung KANG, GeunChang PARK
  • Patent number: 10586475
    Abstract: A rollable display device is disclosed. The rollable display device includes a display panel, a driving unit including a motion converting unit configured to linearly move in a width direction of the display panel in conjunction with a rotational motion of a motor, a lifting unit connected to one end of the display panel and the motion converting unit, and configured to move up and down the display panel in a longitudinal direction of the display panel in conjunction with a linear motion of the motion converting unit, and a panel roller unit connected to other end of the display panel, and configured to roll and unroll the display panel along a periphery of the panel roller unit in conjunction with moving up and down of the display panel.
    Type: Grant
    Filed: October 26, 2017
    Date of Patent: March 10, 2020
    Assignee: LG Display Co., Ltd.
    Inventors: Geunchang Park, Chounsung Kang, Jungkyu Park
  • Publication number: 20200008309
    Abstract: A display device includes: a display panel and a back cover which is disposed on one surface of the display panel and has a plurality of openings in which a left edge and a right edge among a plurality of edges of the back cover are bent toward the display panel. Therefore, a display device in which the left edge and the right edge of the back cover are bent to improve a sharp edge is provided and an injury risk of the user due to the sharp edge may be avoided.
    Type: Application
    Filed: June 28, 2019
    Publication date: January 2, 2020
    Applicant: LG Display Co., Ltd.
    Inventors: MinSeok KIM, Mi-Na SHIN, ChounSung KANG, SunBok SONG, GeunChang PARK, Moonsun LEE
  • Publication number: 20200008308
    Abstract: A display device includes a display panel including a display area on which a plurality of display elements is disposed and a non-display area on which one or more wires for driving the plurality of display elements are disposed. A back cover is attached to one surface of the display panel and has a plurality of openings. A roller unit winds or unwinds the back cover and the display panel, and a lifting unit moves the back cover and the display panel in a vertical direction. The plurality of openings overlaps the display panel, and each of the plurality of openings is disposed to be staggered with one or more of the openings in an adjacent row. A size of the back cover is larger than a size of the display panel.
    Type: Application
    Filed: June 27, 2019
    Publication date: January 2, 2020
    Applicant: LG Display Co., Ltd.
    Inventors: Mi-Na SHIN, ChounSung KANG, SunBok SONG, GeunChang PARK, Moonsun LEE
  • Publication number: 20200004296
    Abstract: A display device includes: a display panel and a back cover which supports the display panel on a rear surface of the display panel and includes a plurality of openings and a length of a lower edge of the back cover is larger than a length of an upper edge of the back cover. Therefore, when the display device is rolled, a rolling position of the display device may be guided.
    Type: Application
    Filed: June 28, 2019
    Publication date: January 2, 2020
    Applicant: LG Display Co., Ltd.
    Inventors: Moonsun LEE, Mi-Na SHIN, ChounSung KANG, SunBok SONG, GeunChang PARK
  • Publication number: 20190324501
    Abstract: A display apparatus includes a display panel including a plurality of pixels and configured to display an image; a housing module including a roller therein such that the display panel is configured to be wound on the roller to be housed in the housing module or unwound from the roller to extend from the housing module; a rolling module including a structure connected to the display panel and configured to wind or unwind the display panel according to a folding or unfolding of the structure; and a vibration device on the structure, the vibration device configured to vibrate the display panel in an unwound state.
    Type: Application
    Filed: April 16, 2019
    Publication date: October 24, 2019
    Applicant: LG Display Co., Ltd.
    Inventors: Taehyung KIM, GeunChang PARK, ChounSung KANG, Mi-Na SHIN, SunBok SONG, SeungJun KOO
  • Publication number: 20180114471
    Abstract: A rollable display device is disclosed. The rollable display device includes a display panel, a driving unit including a motion converting unit configured to linearly move in a width direction of the display panel in conjunction with a rotational motion of a motor, a lifting unit connected to one end of the display panel and the motion converting unit, and configured to move up and down the display panel in a longitudinal direction of the display panel in conjunction with a linear motion of the motion converting unit, and a panel roller unit connected to other end of the display panel, and configured to roll and unroll the display panel along a periphery of the panel roller unit in conjunction with moving up and down of the display panel.
    Type: Application
    Filed: October 26, 2017
    Publication date: April 26, 2018
    Applicant: LG Display Co., Ltd.
    Inventors: Geunchang PARK, Chounsung KANG, Jungkyu PARK
  • Publication number: 20170367198
    Abstract: A rollable display includes a flexible display panel that can be rolled up and down, a back cover that rolls up and down along with the flexible display panel, with one edge fixed to one edge of the flexible display panel, and a flexible magnet fixed to either the flexible display panel or the back cover and interposed between the flexible display panel and the back cover.
    Type: Application
    Filed: December 9, 2016
    Publication date: December 21, 2017
    Inventors: Jungkyu PARK, Chounsung KANG, Geunchang PARK
  • Publication number: 20170344073
    Abstract: A rollable display comprises a flexible display panel; at least one BRC member having one end coupled with an edge of the flexible display panel; a roller assembly having a roller coupled with another end of the BRC member and a motor for rotating the roller, the roller assembly being ascended while rolling the BRC member onto the roller when the motor is rotated in a first direction, and being descending while unrolling the BRC member from the roller when the motor is rotated in a second direction opposite to the first direction; and a panel guide part connected to the roller assembly and moved along with the roller assembly; wherein the flexible display panel is rolled onto the panel guide part when the roller assembly and the panel guide part ascend, and is unrolled from the panel guide part when the roller assembly and the panel guide part descend.
    Type: Application
    Filed: May 26, 2017
    Publication date: November 30, 2017
    Inventors: Chounsung KANG, Geunchang PARK, Jungkyu PARK
  • Patent number: 8663750
    Abstract: A method of fabricating backlight unit is disclosed. The backlight unit method of fabricating backlight unit includes, preparing a base member having a predetermined thickness, applying ultraviolet curing resin on a surface of the base member, transferring prism patterns to the ultraviolet curing resin using a flexible mold having engraved patterns corresponding to the prism patterns, and curing the prism patterns before the prism patterns are separated from the engraved patterns of the flexible mold.
    Type: Grant
    Filed: December 5, 2008
    Date of Patent: March 4, 2014
    Assignee: LG Display Co. Ltd.
    Inventors: Jigon Kim, Jeongmin Moon, Gibin Kim, Gilwon Han, Jigeun Nam, Chounsung Kang
  • Patent number: 7946747
    Abstract: A backlight unit is disclosed. The backlight unit includes a light source unit generating light, a beam profile changer at the side of the light source unit, a reflective plate under the beam profile changer, and an optical film positioned on the beam profile changer and the reflective plate. The beam profile changer includes an incident surface facing the light source unit and an emitting surface positioned in a direction parallel to the incident surface. The reflective plate includes a first reflective surface having a first reflective area and a second reflective surface having a second reflective area. The second reflective surface is inclined from an end of the first reflective surface to an upward direction.
    Type: Grant
    Filed: December 19, 2008
    Date of Patent: May 24, 2011
    Assignee: LG Display Co., Ltd.
    Inventors: Jigon Kim, Jeongmin Moon, Gibin Kim, Gilwon Han, Jigeun Nam, Chounsung Kang
  • Publication number: 20090213570
    Abstract: A method of fabricating backlight unit is disclosed. The backlight unit method of fabricating backlight unit includes, preparing a base member having a predetermined thickness, applying ultraviolet curing resin on a surface of the base member transferring prism patterns to the ultraviolet curing resin using a flexible mold having engraved patterns corresponding to the prism patterns, and curing the prism patterns before the prism patterns are separated from the engraved patterns of the flexible mold.
    Type: Application
    Filed: December 5, 2008
    Publication date: August 27, 2009
    Inventors: Jigon Kim, Jeongmin Moon, Gibin Kim, Gilwon Han, Jigeun Nam, Chounsung Kang
  • Publication number: 20090213569
    Abstract: A backlight unit is disclosed. The backlight unit includes a light source unit generating light, a beam profile changer at the side of the light source unit, a reflective plate under the beam profile changer, and an optical film positioned on the beam profile changer and the reflective plate. The beam profile changer includes an incident surface facing the light source unit and an emitting surface positioned in a direction parallel to the incident surface. The reflective plate includes a first reflective surface having a first reflective area and a second reflective surface having a second reflective area. The second reflective surface is inclined from an end of the first reflective surface to an upward direction.
    Type: Application
    Filed: December 19, 2008
    Publication date: August 27, 2009
    Inventors: Jigon Kim, Jeongmin Moon, Gibin Kim, Gilwon Han, Jigeun Nam, Chounsung Kang