Patents by Inventor JongSeok CHA

JongSeok CHA 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: 12183727
    Abstract: A flexible display device may include a display panel including a display area and a bending area extending from one side of the display area to be bent, a back plate disposed on a rear surface of the display panel, a cushion tape disposed on a rear surface of the back plate, a driver integrated circuit (IC) disposed in a pad portion extending from the bending area, and a functional tape adhered between the cushion tape and the back plate and disposed to face the driver integrated circuit, so that effects capable of improving an EMI shielding function with a low cost, together with an adhesive function, and deriving an optimum efficiency, may be provided.
    Type: Grant
    Filed: September 22, 2023
    Date of Patent: December 31, 2024
    Assignee: LG DISPLAY CO., LTD.
    Inventors: Insik Shin, Jongseok Cha
  • Publication number: 20240423017
    Abstract: Disclosed are a display module and a display device capable of minimizing a pressed stain defect while reducing a bezel area. To this end, a thickness of a cushion portion of a cushion plate closer to a bent portion may be reduced, thereby reducing a bending radius of curvature such that the bezel area may be reduced. Further, placing a support layer having a strong supporting force formed of PET into the cushion plate such that the support layer is in contact with the heat-dissipation layer may allow minimizing an unevenness defect on the cushion plate even when a bent pad portion of a display panel presses the cushion portion. Thus, visibility of an internal pressed stain to a user may be minimized.
    Type: Application
    Filed: August 26, 2024
    Publication date: December 19, 2024
    Inventors: Jongseok CHA, Dongwon JANG, Buhui LEE, Junho YUN
  • Patent number: 12167632
    Abstract: Disclosed are a display module and a display device capable of minimizing a pressed stain defect while reducing a bezel area. To this end, a thickness of a cushion portion of a cushion plate closer to a bent portion may be reduced, thereby reducing a bending radius of curvature such that the bezel area may be reduced. Further, placing a support layer having a strong supporting force formed of PET into the cushion plate such that the support layer is in contact with the heat-dissipation layer may allow minimizing an unevenness defect on the cushion plate even when a bent pad portion of a display panel presses the cushion portion. Thus, visibility of an internal pressed stain to a user may be minimized.
    Type: Grant
    Filed: November 17, 2021
    Date of Patent: December 10, 2024
    Assignee: LG Display Co., Ltd.
    Inventors: Jongseok Cha, Dongwon Jang, Buhui Lee, Junho Yun
  • Publication number: 20240219964
    Abstract: The disclosure provides a foldable display apparatus. The foldable display apparatus is capable of folding or unfolding. According to the disclosure, the foldable display apparatus includes a bottom plate that may include a first part having a first height and a second part having a second height; an up-down plate having a length in an axial direction; and a roller assembly including a roller and a roller stopper.
    Type: Application
    Filed: December 14, 2023
    Publication date: July 4, 2024
    Applicant: LG DISPLAY CO., LTD.
    Inventor: Jongseok CHA
  • Publication number: 20240014198
    Abstract: A flexible display device may include a display panel including a display area and a bending area extending from one side of the display area to be bent, a back plate disposed on a rear surface of the display panel, a cushion tape disposed on a rear surface of the back plate, a driver integrated circuit (IC) disposed in a pad portion extending from the bending area, and a functional tape adhered between the cushion tape and the back plate and disposed to face the driver integrated circuit, so that effects capable of improving an EMI shielding function with a low cost, together with an adhesive function, and deriving an optimum efficiency, may be provided.
    Type: Application
    Filed: September 22, 2023
    Publication date: January 11, 2024
    Applicant: LG DISPLAY CO., LTD.
    Inventors: Insik SHIN, Jongseok CHA
  • Patent number: 11856741
    Abstract: A display apparatus capable of improving heat-dissipation performance while not increasing a total thickness thereof include a heat-dissipation member accommodated in a cushion plate. Thus, the heat-dissipation performance may be improved without increasing a thickness of the display apparatus. Thus, a mounting space for components may be secured without increasing a bezel area. Further, the heat-dissipation member having a predetermined thickness and an air gap are disposed in the heat-dissipation member accommodating space of the cushion plate, thereby maximizing the heat-dissipation from a driving integrated circuit disposed under the cushion plate so as to overlap the heat-dissipation member accommodating space.
    Type: Grant
    Filed: August 13, 2021
    Date of Patent: December 26, 2023
    Assignee: LG Display Co., Ltd.
    Inventors: Buhui Lee, Sangsoo Yoon, Dongwon Jang, Jongseok Cha
  • Patent number: 11798928
    Abstract: A flexible display device may include a display panel including a display area and a bending area extending from one side of the display area to be bent, a back plate disposed on a rear surface of the display panel, a cushion tape disposed on a rear surface of the back plate, a driver integrated circuit (IC) disposed in a pad portion extending from the bending area, and a functional tape adhered between the cushion tape and the back plate and disposed to face the driver integrated circuit, so that effects capable of improving an EMI shielding function with a low cost, together with an adhesive function, and deriving an optimum efficiency, may be provided.
    Type: Grant
    Filed: December 10, 2020
    Date of Patent: October 24, 2023
    Assignee: LG Display Co., Ltd.
    Inventors: Insik Shin, Jongseok Cha
  • Publication number: 20230217620
    Abstract: The present disclosure relates to a display panel and particularly to a display panel including a backplate disposed below a panel layer and having a pattern forming area in which groove patterns are formed on both sides. Disclosed is a display panel including: a cover window including curved areas formed on both sides and a flat area formed in a middle; an adhesive layer disposed below the cover window; a panel layer disposed below the adhesive layer; and a backplate disposed below the panel layer and including pattern forming areas formed on both sides and a non-pattern area formed in a middle, and the backplate includes a plurality of groove patterns disposed in a first direction and extending in a second direction in the pattern forming area.
    Type: Application
    Filed: November 17, 2022
    Publication date: July 6, 2023
    Inventors: Jongseok Cha, Dongwon Jang
  • Publication number: 20230209890
    Abstract: An embodiment of the present disclosure provides a display device including a front member disposed on a front surface of a display panel and having curved areas and a planar area, a second adhesive layer disposed on a rear surface of the display panel, a first member disposed on the second adhesive layer, a second member disposed on the first member, a heat dissipation member disposed on the second member and having a width different from that of the front member, an encapsulation member encapsulating the heat dissipation member and including a first region and a second region and a third adhesive layer disposed on the heat dissipation member, wherein the curved areas are located at both ends of the front member along a width direction of the front member, wherein a width of the encapsulation member is less than or equal to a width of the front member.
    Type: Application
    Filed: November 23, 2022
    Publication date: June 29, 2023
    Inventors: Jongseok CHA, DongWon JANG
  • Publication number: 20220181576
    Abstract: Disclosed are a display module and a display device capable of minimizing a pressed stain defect while reducing a bezel area. To this end, a thickness of a cushion portion of a cushion plate closer to a bent portion may be reduced, thereby reducing a bending radius of curvature such that the bezel area may be reduced. Further, placing a support layer having a strong supporting force formed of PET into the cushion plate such that the support layer is in contact with the heat-dissipation layer may allow minimizing an unevenness defect on the cushion plate even when a bent pad portion of a display panel presses the cushion portion. Thus, visibility of an internal pressed stain to a user may be minimized.
    Type: Application
    Filed: November 17, 2021
    Publication date: June 9, 2022
    Inventors: Jongseok Cha, Dongwon Jang, Buhui Lee, Junho Yun
  • Publication number: 20220061195
    Abstract: A display apparatus capable of improving heat-dissipation performance while not increasing a total thickness thereof include a heat-dissipation member accommodated in a cushion plate. Thus, the heat-dissipation performance may be improved without increasing a thickness of the display apparatus. Thus, a mounting space for components may be secured without increasing a bezel area. Further, the heat-dissipation member having a predetermined thickness and an air gap are disposed in the heat-dissipation member accommodating space of the cushion plate, thereby maximizing the heat-dissipation from a driving integrated circuit disposed under the cushion plate so as to overlap the heat-dissipation member accommodating space.
    Type: Application
    Filed: August 13, 2021
    Publication date: February 24, 2022
    Inventors: Buhui Lee, Sangsoo Yoon, Dongwon Jang, Jongseok Cha
  • Publication number: 20210202460
    Abstract: A flexible display device may include a display panel including a display area and a bending area extending from one side of the display area to be bent, a back plate disposed on a rear surface of the display panel, a cushion tape disposed on a rear surface of the back plate, a driver integrated circuit (IC) disposed in a pad portion extending from the bending area, and a functional tape adhered between the cushion tape and the back plate and disposed to face the driver integrated circuit, so that effects capable of improving an EMI shielding function with a low cost, together with an adhesive function, and deriving an optimum efficiency, may be provided.
    Type: Application
    Filed: December 10, 2020
    Publication date: July 1, 2021
    Applicant: LG DISPLAY CO., LTD.
    Inventors: Insik SHIN, Jongseok CHA
  • Patent number: 10877308
    Abstract: A display device includes a backlight unit, a liquid crystal panel installed on the upper portion of the backlight unit, and a camera hole that passes through the backlight unit and the liquid crystal panel. A camera is inserted into the camera hole, and a cover glass is attached to the liquid crystal panel, the cover glass covering the camera hole. A light-leakage prevention means is provided on the cover glass to prevent light leakage into the camera hole. The camera hole passes through the backlight unit and the liquid crystal panel in a hole-in-display type, and prevents light leakage into the camera hole and improves the appearance quality while increasing the resolution of the camera.
    Type: Grant
    Filed: August 1, 2019
    Date of Patent: December 29, 2020
    Assignee: LG Display Co., Ltd.
    Inventors: WonTae Kim, SungSik Son, JiCheol Son, Chanhyeok Park, Jongseok Cha, WonJong Kim
  • Patent number: 10823997
    Abstract: A display device comprises: a backlight unit; a liquid crystal panel comprising a lower polarizer, an upper polarizer, and a first substrate and a second substrate; and a cover plate on the liquid crystal panel, wherein a camera hole passes through the backlight unit and up to the lower polarizer, an interference prevention hole is located at a position corresponding to the camera hole, and the camera hole is not in the first substrate and the second substrate. The display device has a hole with a uniform size, decreased processing cost, increased structural rigidity, and does not have thermal deformation, can prevent defects such as generation of air bubbles, bending deformation, and distortion of a light path due to the hole and the vacuum bonding while increasing the visible light transmittance and resolution of the camera, and improving the appearance quality of the display device.
    Type: Grant
    Filed: December 6, 2019
    Date of Patent: November 3, 2020
    Assignee: LG Display Co., Ltd.
    Inventors: Geunuk Kim, WonTae Kim, JinHyeok Cho, Jongseok Cha
  • Publication number: 20200192142
    Abstract: A display device comprises: a backlight unit; a liquid crystal panel comprising a lower polarizer, an upper polarizer, and a first substrate and a second substrate; and a cover plate on the liquid crystal panel, wherein a camera hole passes through the backlight unit and up to the lower polarizer, an interference prevention hole is located at a position corresponding to the camera hole, and the camera hole is not in the first substrate and the second substrate. The display device has a hole with a uniform size, decreased processing cost, increased structural rigidity, and does not have thermal deformation, can prevent defects such as generation of air bubbles, bending deformation, and distortion of a light path due to the hole and the vacuum bonding while increasing the visible light transmittance and resolution of the camera, and improving the appearance quality of the display device.
    Type: Application
    Filed: December 6, 2019
    Publication date: June 18, 2020
    Inventors: Geunuk KIM, WonTae KIM, JinHyeok CHO, Jongseok CHA
  • Publication number: 20200192148
    Abstract: A display device includes a backlight unit, a liquid crystal panel installed on the upper portion of the backlight unit, and a camera hole that passes through the backlight unit and the liquid crystal panel. A camera is inserted into the camera hole, and a cover glass is attached to the liquid crystal panel, the cover glass covering the camera hole. A light-leakage prevention means is provided on the cover glass to prevent light leakage into the camera hole. The camera hole passes through the backlight unit and the liquid crystal panel in a hole-in-display type, and prevents light leakage into the camera hole and improves the appearance quality while increasing the resolution of the camera.
    Type: Application
    Filed: August 1, 2019
    Publication date: June 18, 2020
    Inventors: WonTae KIM, SungSik SON, JiCheol SON, Chanhyeok PARK, Jongseok CHA, WonJong KIM
  • Patent number: 9482916
    Abstract: A liquid crystal display (LCD) includes a liquid crystal module defining an opening, the liquid crystal module including a printed circuit board having a pad portion exposed to the opening; a set printed circuit board disposed adjacent a surface of the liquid crystal module; and a connector disposed between the liquid crystal module and the set printed circuit board through the opening to electrically connect the liquid crystal module and the pad portion.
    Type: Grant
    Filed: December 12, 2014
    Date of Patent: November 1, 2016
    Assignee: LG Display Co., Ltd.
    Inventors: SungSik Son, JongSeok Cha
  • Publication number: 20160004116
    Abstract: A liquid crystal display (LCD) includes a liquid crystal module defining an opening, the liquid crystal module including a printed circuit board having a pad portion exposed to the opening; a set printed circuit board disposed adjacent a surface of the liquid crystal module; and a connector disposed between the liquid crystal module and the set printed circuit board through the opening to electrically connect the liquid crystal module and the pad portion.
    Type: Application
    Filed: December 12, 2014
    Publication date: January 7, 2016
    Applicant: LG DISPLAY CO., LTD.
    Inventors: SungSik SON, JongSeok CHA