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: 11087648
    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: Grant
    Filed: September 26, 2020
    Date of Patent: August 10, 2021
    Assignee: LG Display Co., Ltd.
    Inventors: YoungShin Lee, ChounSung Kang, Mi-Na Shin, SunBok Song, GeunChang Park
  • Patent number: 11089700
    Abstract: A display device includes: a display panel, a back cover which supports the display panel on a rear surface of the display panel; at least one flexible film which is electrically connected to one end of the display panel and is on one surface of the back cover; a printed circuit board which is electrically connected to the at least one flexible film and on one surface of the back cover; and a roller on which the display panel and the back cover are wound or unwound, the roller being configured by a first flat portion, a second flat portion, and a curved portion. When the display panel and the back cover are fully wound around the roller, the at least one flexible film corresponds to the first flat portion, and the printed circuit board corresponds to the second flat portion.
    Type: Grant
    Filed: June 29, 2020
    Date of Patent: August 10, 2021
    Assignee: LG Display Co., Ltd.
    Inventors: ChounSung Kang, Mi-Na Shin, SunBok Song, Hoiyong Kwon, GeunChang Park
  • Patent number: 11064608
    Abstract: A rollable display device is disclosed. The rollable display device includes a rollable display panel, a roller configured to roll and unroll the rollable display pane, and a first printed circuit board electrically connected to the rollable display panel. The first printed circuit board comprises a curved surface having a curvature that matches a curvature of a curved surface of the roller. The first curved surface of the printed circuit board is in contact with the curved surface of the roller.
    Type: Grant
    Filed: October 29, 2019
    Date of Patent: July 13, 2021
    Assignee: LG Display Co., Ltd.
    Inventors: Jaekyung Choi, ChounSung Kang
  • Patent number: 11037472
    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: January 31, 2020
    Date of Patent: June 15, 2021
    Assignee: LG DISPLAY CO., LTD.
    Inventors: Geunchang Park, Chounsung Kang, Jungkyu Park
  • Publication number: 20210176873
    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: February 20, 2021
    Publication date: June 10, 2021
    Applicant: LG Display Co., Ltd.
    Inventors: Mi-Na SHIN, ChounSung KANG, SunBok SONG, GeunChang PARK, Moonsun LEE
  • Patent number: 11013130
    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: Grant
    Filed: June 27, 2019
    Date of Patent: May 18, 2021
    Assignee: LG Display Co., Ltd.
    Inventors: Mi-Na Shin, ChounSung Kang, SunBok Song, GeunChang Park, Moonsun Lee
  • Patent number: 10993337
    Abstract: A disclosed display apparatus may include a display panel configured to display an image, and a first back cover at a rear surface of the display panel and supporting the display panel. The display apparatus may additionally include a roller configured to wind or unwind the display panel, and an adhesive part between the display panel and the first back cover and fixed to the roller.
    Type: Grant
    Filed: November 5, 2019
    Date of Patent: April 27, 2021
    Assignee: LG Display Co., Ltd.
    Inventors: Mi-Na Shin, ChounSung Kang, SunBok Song, GeunChang Park
  • Patent number: 10973135
    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: Grant
    Filed: June 27, 2019
    Date of Patent: April 6, 2021
    Assignee: LG Display Co., Ltd.
    Inventors: Mi-Na Shin, ChounSung Kang, SunBok Song, GeunChang Park, Moonsun Lee
  • Publication number: 20210090476
    Abstract: Disclosed herein is a display device. The display device comprises: a mid cover; a display panel disposed on the mid cover and having a plurality of pixels defined therein; a plurality of back bars disposed under the mid cover; and a roller fixed to the mid cover. The mid cover, the display panel and the plurality of back bars are wound around or unwound from the roller.
    Type: Application
    Filed: August 14, 2020
    Publication date: March 25, 2021
    Inventors: ChounSung KANG, Mi-Na SHIN, GeunChang PARK
  • Publication number: 20210051809
    Abstract: A display device may include a display panel, a first back cover disposed on a rear surface of the display panel, at least one flexible film which is electrically connected to one end of the display panel and is bent toward a rear surface of the first back cover or a front surface of the display panel, and a printed circuit board which is electrically connected to the at least one flexible film and disposed on the rear surface of the first back cover or the at least one flexible film. The printed circuit board overlaps one end of the display panel. Accordingly, one end of the display panel in which the pad area which is vulnerable to the stress is disposed and the printed circuit board are maintained to be flat, to minimize the damage of the display device.
    Type: Application
    Filed: August 11, 2020
    Publication date: February 18, 2021
    Applicant: LG Display Co., Ltd.
    Inventors: JiHun Song, ChounSung Kang, Mi-Na Shin, Hoiyong Kwon, GeunChang Park
  • Publication number: 20210012688
    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 26, 2020
    Publication date: January 14, 2021
    Applicant: LG Display Co., Ltd.
    Inventors: YoungShin LEE, ChounSung KANG, Mi-Na SHIN, SunBok SONG, GeunChang PARK
  • Publication number: 20210007230
    Abstract: A display device includes: a display panel, a back cover which supports the display panel on a rear surface of the display panel; at least one flexible film which is electrically connected to one end of the display panel and is on one surface of the back cover; a printed circuit board which is electrically connected to the at least one flexible film and on one surface of the back cover; and a roller on which the display panel and the back cover are wound or unwound, the roller being configured by a first flat portion, a second flat portion, and a curved portion. When the display panel and the back cover are fully wound around the roller, the at least one flexible film corresponds to the first flat portion, and the printed circuit board corresponds to the second flat portion.
    Type: Application
    Filed: June 29, 2020
    Publication date: January 7, 2021
    Applicant: LG Display Co., Ltd.
    Inventors: ChounSung KANG, Mi-Na SHIN, SunBok SONG, Hoiyong KWON, GeunChang PARK
  • Patent number: 10877525
    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: Grant
    Filed: May 26, 2017
    Date of Patent: December 29, 2020
    Assignee: LG Display Co., Ltd.
    Inventors: Chounsung Kang, Geunchang Park, Jungkyu Park
  • Publication number: 20200379517
    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: August 18, 2020
    Publication date: December 3, 2020
    Applicant: LG Display Co., Ltd.
    Inventors: Taehyung KIM, GeunChang PARK, ChounSung KANG, Mi-Na SHIN, SunBok SONG, SeungJun KOO
  • Patent number: 10847066
    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: Grant
    Filed: September 11, 2019
    Date of Patent: November 24, 2020
    Assignee: LG Display Co., Ltd.
    Inventors: YoungShin Lee, ChounSung Kang, Mi-Na Shin, SunBok Song, GeunChang Park
  • Patent number: 10798831
    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: Grant
    Filed: September 4, 2019
    Date of Patent: October 6, 2020
    Assignee: LG Display Co., Ltd.
    Inventors: Mi-Na Shin, ChounSung Kang, GeunChang Park
  • Patent number: 10782740
    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: Grant
    Filed: April 16, 2019
    Date of Patent: September 22, 2020
    Assignee: LG Display Co., Ltd.
    Inventors: Taehyung Kim, GeunChang Park, ChounSung Kang, Mi-Na Shin, SunBok Song, SeungJun Koo
  • Publication number: 20200168131
    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: January 31, 2020
    Publication date: May 28, 2020
    Applicant: LG Display Co., Ltd.
    Inventors: Geunchang PARK, Chounsung KANG, Jungkyu PARK
  • Publication number: 20200170114
    Abstract: A rollable display device is disclosed. The rollable display device includes a rollable display panel, a roller configured to roll and unroll the rollable display pane, and a first printed circuit board electrically connected to the rollable display panel. The first printed circuit board comprises a curved surface having a curvature that matches a curvature of a curved surface of the roller. The first curved surface of the printed circuit board is in contact with the curved surface of the roller.
    Type: Application
    Filed: October 29, 2019
    Publication date: May 28, 2020
    Inventors: Jaekyung CHOI, ChounSung KANG
  • Publication number: 20200154580
    Abstract: A disclosed display apparatus may include a display panel configured to display an image, and a first back cover at a rear surface of the display panel and supporting the display panel. The display apparatus may additionally include a roller configured to wind or unwind the display panel, and an adhesive part between the display panel and the first back cover and fixed to the roller.
    Type: Application
    Filed: November 5, 2019
    Publication date: May 14, 2020
    Applicant: LG Display Co., Ltd.
    Inventors: Mi-Na SHIN, ChounSung KANG, SunBok SONG, GeunChang PARK