Patents by Inventor Jin Hwan Choi

Jin Hwan Choi 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: 10687418
    Abstract: A rollable display device includes a rollable structure including a plurality of unit structures, the rollable structure being configured to be rolled and unrolled based on the unit structures, and a display panel structure attached to the rollable structure, wherein respective widths of the unit structures increase in a first direction from a first side of the rollable structure to an opposite second side of the rollable structure.
    Type: Grant
    Filed: August 9, 2018
    Date of Patent: June 16, 2020
    Assignee: Samsung Display Co., Ltd.
    Inventors: Jin-Hwan Choi, Min-Sung Kim, Tae-An Seo, Jung-Hun Lee
  • Publication number: 20200152095
    Abstract: A flexible display panel of an expandable display device includes a first side with a display unit, and a second side opposite to the first side. A bending guide includes an external guide that faces part of the first side and has a first curved side, and an internal guide that faces part of the second side and has a second curved side. A slider that slides on the bending guide is attached to one end portion of the flexible display panel. A radius of the first curved side is greater than a radius of the second curved side. When the slider moves toward the bending guide, the first side contacts the first curved side and is bent by the first curved side, and when the slider moves away from the bending guide, the second side contacts the second curved side and is bent by the second curved side.
    Type: Application
    Filed: December 24, 2019
    Publication date: May 14, 2020
    Inventors: JUNG HUN LEE, Sun Ho Kim, Young-Seok Seo, Tae An Seo, Jin Hwan Choi
  • Patent number: 10653005
    Abstract: A rollable display device includes a rollable structure including a plurality of unit structures, the rollable structure being configured to be rolled and unrolled based on the unit structures, and a display panel structure attached to the rollable structure, wherein respective widths of the unit structures increase in a first direction from a first side of the rollable structure to an opposite second side of the rollable structure.
    Type: Grant
    Filed: August 9, 2018
    Date of Patent: May 12, 2020
    Assignee: Samsung Display Co., Ltd.
    Inventors: Jin-Hwan Choi, Min-Sung Kim, Tae-An Seo, Jung-Hun Lee
  • Patent number: 10599378
    Abstract: A display device includes first and second display panel having respective first and second display areas to display an image, a first support portion to support the first display panel, the first support portion having a curved first end portion and being rotatable based on a first rotation shaft, and a second support portion to support the second display panel, the second support portion having a curved second end portion facing the first end portion, and the second support portion being rotatable based on a second rotation shaft parallel to the first rotation shaft. The first display area covers at least some of an outer surface of the first end portion of the first support portion, and the second display area covers at least some of an outer surface of the second end portion of the second support portion.
    Type: Grant
    Filed: May 10, 2017
    Date of Patent: March 24, 2020
    Assignee: SAMSUNG DISPLAY CO., LTD.
    Inventors: Jin Hwan Choi, Bo Ik Park, Tae An Seo
  • Patent number: 10591958
    Abstract: An exemplary embodiment provides a rollable display device including: a rollable display panel including a front surface and a rear surface, a first damping layer positioned on the front surface of the rollable display panel, and a second damping layer positioned on the rear surface of the rollable display panel. The first damping layer and the second damping layer have a shear thickening characteristic.
    Type: Grant
    Filed: September 28, 2018
    Date of Patent: March 17, 2020
    Assignee: Samsung Display Co., Ltd.
    Inventors: Tae Woong Kim, Khachatryan Hayk, Hyun Woo Koo, Min-Sung Kim, Jeong Ho Kim, Jin Hwan Choi
  • Patent number: 10553135
    Abstract: A flexible display panel of an expandable display device includes a first side with a display unit, and a second side opposite to the first side. A bending guide includes an external guide that faces part of the first side and has a first curved side, and an internal guide that faces part of the second side and has a second curved side. A slider that slides on the bending guide is attached to one end portion of the flexible display panel. A radius of the first curved side is greater than a radius of the second curved side. When the slider moves toward the bending guide, the first side contacts the first curved side and is bent by the first curved side, and when the slider moves away from the bending guide, the second side contacts the second curved side and is bent by the second curved side.
    Type: Grant
    Filed: October 4, 2017
    Date of Patent: February 4, 2020
    Assignee: SAMSUNG DISPLAY CO., LTD.
    Inventors: Jung Hun Lee, Sun Ho Kim, Young-Seok Seo, Tae An Seo, Jin Hwan Choi
  • Publication number: 20200029448
    Abstract: A display device including: a display panel configured to display an image; and a winder configured to fix a first end portion of the display panel thereinto, wherein the winder includes a first fixing portion including a first external surface which is curved, and a second fixing portion that includes a second external surface which is curved and that faces the first external surface, wherein the first end portion of the display panel may be interposed between the first external surface and the second external surface.
    Type: Application
    Filed: September 27, 2019
    Publication date: January 23, 2020
    Inventors: MIN-SUNG KIM, TAE AN SEO, JUNG HUN LEE, JIN HWAN CHOI
  • Patent number: 10466748
    Abstract: A rollable display device includes a roller defining a rolling direction, and a rollable display unit. A first side of the rollable display unit is fixed to the roller, and the rollable display unit includes a plurality of spacers spaced apart from one another and arranged in the rolling direction. Heights of the spacers disposed near a second side of the rollable display unit opposing the first side are greater than heights of the spacers disposed near the first side of the rollable display unit.
    Type: Grant
    Filed: September 27, 2018
    Date of Patent: November 5, 2019
    Assignee: SAMSUNG DISPLAY CO., LTD.
    Inventors: Jin Hwan Choi, Jeong Ho Kim, Hyun Woo Koo, Tae Woong Kim
  • Patent number: 10455710
    Abstract: A display device including: a display panel configured to display an image; and a winder configured to fix a first end portion of the display panel thereinto, wherein the winder includes a first fixing portion including a first external surface which is curved, and a second fixing portion that includes a second external surface which is curved and that faces the first external surface, wherein the first end portion of the display panel may be interposed between the first external surface and the second external surface.
    Type: Grant
    Filed: June 19, 2017
    Date of Patent: October 22, 2019
    Assignee: SAMSUNG DISPLAY CO., LTD.
    Inventors: Min-Sung Kim, Tae An Seo, Jung Hun Lee, Jin Hwan Choi
  • Patent number: 10444613
    Abstract: A display device includes a flexible display panel, a roller for winding the flexible display panel, an elastic holder fixed to an edge of the flexible display panel and having a side parallel to the edge of the flexible display panel, and a tension applier set disposed at opposite ends of the elastic holder for tensioning the elastic holder.
    Type: Grant
    Filed: April 28, 2017
    Date of Patent: October 15, 2019
    Assignee: Samsung Display Co., Ltd.
    Inventors: Tae An Seo, Jin Hwan Choi, Jung Hun Lee
  • Patent number: 10448521
    Abstract: A rollable display device includes: a rollable display including a first end and a second end spaced apart from the first end; a first slider including a roller that supports the first end of the rollable display, the first slider being configured to roll the rollable display about the roller; and a second slider including a support that supports the second end of the rollable display while bending the second end of the rollable display, the second slider being slideable relative to the first slider.
    Type: Grant
    Filed: July 6, 2017
    Date of Patent: October 15, 2019
    Assignee: Samsung Display Co., Ltd.
    Inventors: Tae An Seo, Min-Sung Kim, Jung Hun Lee, Jin Hwan Choi
  • Patent number: 10396310
    Abstract: A display apparatus includes a display device and an encapsulation layer covering the display device. The encapsulation layer includes a first inorganic encapsulation layer, a second inorganic encapsulation layer, and a hybrid encapsulation layer positioned between the first inorganic encapsulation layer and the second inorganic encapsulation layer. The hybrid encapsulation layer includes at least one of alucone, zircone, zincone, titanicone, and nickelcone.
    Type: Grant
    Filed: February 6, 2018
    Date of Patent: August 27, 2019
    Assignees: Samsung Display Co., Ltd., IUCF-HYU (INDUSTRY-UNIVERSITY COOPERATION FOUNDATION HANYANG UNIVERSITY)
    Inventors: Jin-Hwan Choi, Jin-Seong Park, Tae-Woong Kim, Dong-Won Choi
  • Publication number: 20190258296
    Abstract: A rollable display device includes a rollable display and a first protection film disposed on a first surface of the rollable display. The first protection film extends beyond a first display edge of the rollable display. The rollable display device further includes a second protection film disposed on a second surface of the rollable display facing the first surface of the rollable display. The second protection film extends beyond the first display edge of the rollable display. The rollable display device additionally includes a first adhesive layer disposed between the rollable display and the first protection film. The rollable display device further includes second adhesive layer disposed between the rollable display and the second protection film, and a first adhesion part disposed adjacent to the first display edge of the rollable display and between the first protection film and the second protection film.
    Type: Application
    Filed: April 30, 2019
    Publication date: August 22, 2019
    Inventors: TAE AN SEO, MIN-SUNG KIM, JUNG HUN LEE, JIN HWAN CHOI
  • Publication number: 20190250668
    Abstract: An exemplary embodiment provides a rollable display device including: a rollable display panel including a front surface and a rear surface, a first damping layer positioned on the front surface of the rollable display panel, and a second damping layer positioned on the rear surface of the rollable display panel. The first damping layer and the second damping layer have a shear thickening characteristic.
    Type: Application
    Filed: September 28, 2018
    Publication date: August 15, 2019
    Inventors: Tae Woong Kim, Khachatryan Hayk, Hyun Woo Koo, Min-Sung Kim, Jeong Ho Kim, Jin Hwan Choi
  • Publication number: 20190254180
    Abstract: An exemplary embodiment provides a display device including: a display panel configured to include a first area, and a second area and a third area respectively disposed at opposite sides of the first area in a first direction; a first roller unit configured to wind the second area thereon; and a second roller unit configured to wind the third area of the display panel in an opposite direction to that of the first roller unit, wherein a distance between the first roller unit and the second roller unit which are separated from each other in the first direction can be adjusted.
    Type: Application
    Filed: April 25, 2019
    Publication date: August 15, 2019
    Inventors: Jin Hwan CHOI, Min-Sung KIM, Hyun Woo KOO, Jeong Ho KIM, Tae Woong KIM, Tae An SEO, Jung Hun LEE
  • Publication number: 20190221631
    Abstract: A display device includes: a flexible substrate; a plurality of conductive lines on the flexible substrate; a thin film transistor connected to the plurality of conductive lines; and an organic light emitting element connected to the thin film transistor. As a curvature of an area of the flexible substrate increases, a width or a thickness of each of the conductive lines increases.
    Type: Application
    Filed: September 21, 2018
    Publication date: July 18, 2019
    Inventors: Minsung Kim, Hyunwoo Koo, Tae Woong Kim, Jin Hwan Choi, Hayk Kachatryan
  • Publication number: 20190212780
    Abstract: A rollable display device includes a roller defining a rolling direction, and a rollable display unit. A first side of the rollable display unit is fixed to the roller, and the rollable display unit includes a plurality of spacers spaced apart from one another and arranged in the rolling direction. Heights of the spacers disposed near a second side of the rollable display unit opposing the first side are greater than heights of the spacers disposed near the first side of the rollable display unit.
    Type: Application
    Filed: September 27, 2018
    Publication date: July 11, 2019
    Inventors: JIN HWAN CHOI, JEONG HO KIM, HYUN WOO KOO, TAE WOONG KIM
  • Patent number: 10321583
    Abstract: The display device includes a housing, a first roller portion, a second roller portion, a rail portion, and a flexible display panel. The housing includes a support plate. The first roller portion is disposed at a first side of the support plate and is connected to the housing by a first sliding portion. The second roller portion is disposed at a second side of the support plate and is connected to the housing by a second sliding portion. The rail portion includes fixing rails affixed to the support plate, first moving rails connected to the first roller portion and engaged with the fixing rails, and second moving rails connected to the second roller portion and engaged with the fixing rails. The flexible display panel covers the rail portion. The flexible display panel has ends respectively connected to the first roller portion and the second roller portion.
    Type: Grant
    Filed: September 15, 2017
    Date of Patent: June 11, 2019
    Assignee: SAMSUNG DISPLAY CO., LTD.
    Inventors: Tae An Seo, Jung Hun Lee, Jin Hwan Choi
  • Patent number: 10321584
    Abstract: An exemplary embodiment provides a display device including: a display panel configured to include a first area, and a second area and a third area respectively disposed at opposite sides of the first area in a first direction; a first roller unit configured to wind the second area thereon; and a second roller unit configured to wind the third area of the display panel in an opposite direction to that of the first roller unit, wherein a distance between the first roller unit and the second roller unit which are separated from each other in the first direction can be adjusted.
    Type: Grant
    Filed: October 3, 2017
    Date of Patent: June 11, 2019
    Assignee: Samsung Display Co., Ltd.
    Inventors: Jin Hwan Choi, Min-Sung Kim, Hyun Woo Koo, Jeong Ho Kim, Tae Woong Kim, Tae An Seo, Jung Hun Lee
  • Patent number: D871397
    Type: Grant
    Filed: June 19, 2017
    Date of Patent: December 31, 2019
    Assignee: Samsung Display Co., Ltd.
    Inventors: Tae An Seo, Hyun Woo Koo, Kyu Young Kim, Tae Woong Kim, Yeon Gon Mo, Young-Seok Seo, Jung Hun Lee, Jin Hwan Choi