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: 10095273
    Abstract: A rollable display device includes a rollable structure including a plurality of unit structures, the rollable structure being rollable and unrollable 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 direction from a first side of the rollable structure to a second side of the rollable structure, the first side of the rollable structure being opposite to the second side of the rollable structure, and wherein each of the unit structures includes a metal plate, the metal plate being bent by a bending limit angle in a direction in which the rollable structure is rolled, and a magnetic object on a side region of the metal plate, the magnetic object being magnetically coupled to an adjacent metal plate.
    Type: Grant
    Filed: June 30, 2017
    Date of Patent: October 9, 2018
    Assignee: SAMSUNG DISPLAY CO., LTD.
    Inventors: Jin-Hwan Choi, Hyun-Woo Koo, Jeong-Ho Kim, Tae-Woong Kim, Bo-Ik Park, Tae-An Seo, Jung-Hun Lee, Hayk Khachatryan
  • Patent number: 10073491
    Abstract: A rollable display device includes a rollable structure including a plurality of unit structures, a display panel structure attached to the rollable structure, and a plurality of magnetic objects on a bezel region of the rollable structure, wherein respective widths of the unit structures increase in a direction from a first side of the rollable structure to a second side of the rollable structure, wherein the unit structures collectively form first through (n)th rolling cycles, as the rollable structure is rolled, and a (k)th rolling cycle encircles a (k?1)th rolling cycle, and wherein the plurality of magnetic objects aligns the (k)th rolling cycle with the (k?1)th rolling cycle by causing a magnetic attraction between the (k)th rolling cycle and the (k?1)th rolling cycle.
    Type: Grant
    Filed: June 15, 2017
    Date of Patent: September 11, 2018
    Assignee: SAMSUNG DISPLAY CO., LTD.
    Inventors: Jin-Hwan Choi, Young-Seok Seo, Tae-An Seo, Jung-Hun Lee
  • Patent number: 10051728
    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: October 20, 2016
    Date of Patent: August 14, 2018
    Assignee: Samsung Display Co., Ltd.
    Inventors: Jin-Hwan Choi, Min-Sung Kim, Tae-An Seo, Jung-Hun Lee
  • Publication number: 20180226612
    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: Application
    Filed: February 6, 2018
    Publication date: August 9, 2018
    Inventors: Jin-Hwan CHOI, Jin-Seong PARK, Tae-Woong KIM, Dong-Won CHOI
  • Patent number: 10032806
    Abstract: A display device includes a substrate including a first planarization region and a second planarization region inclined at a predetermined angle with respect to the first planarization region. A display device further includes a first wiring disposed in the second planarization region. A display device additionally includes a flexible film bonded with the substrate in the first planarization region and the second planarization region and connected to the first wiring in the second planarization region.
    Type: Grant
    Filed: February 3, 2017
    Date of Patent: July 24, 2018
    Assignee: SAMSUNG DISPLAY CO., LTD.
    Inventors: Tae An Seo, Jin Hwan Choi, Tae Woong Kim, Bo Ik Park, Ju Chan Park
  • Patent number: 10014356
    Abstract: An organic light-emitting diode display is disclosed. In one aspect, the display includes a substrate having a flexible portion configured to bend or fold, a semiconductor positioned over the substrate, and a gate insulating layer positioned over the semiconductor and having an opening. The display also includes an interlayer insulating layer positioned over the gate insulating layer, a portion of the interlayer insulating layer positioned within the opening. The display further includes a gate electrode positioned between the gate insulating layer and the interlayer insulating layer and overlapping the semiconductor in the depth dimension of the OLED display. A source electrode and a drain electrode are positioned over the interlayer insulating layer and connected to the semiconductor.
    Type: Grant
    Filed: September 2, 2016
    Date of Patent: July 3, 2018
    Assignee: Samsung Display Co., Ltd.
    Inventors: Tae An Seo, Ju Chan Park, Jin Hwan Choi, Tae Woong Kim, Bo Ik Park, Young Gug Seol
  • Patent number: 9978777
    Abstract: A TFT array panel of a display device includes a first substrate, a first electrode disposed on the first substrate, a first insulating layer including a first hole, the first insulating layer disposed on the first electrode, a second insulating layer disposed on the first insulating layer and including a second hole corresponding to the first hole, and a capping layer including a first inner portion, the capping layer disposed on an inner lateral surface forming the second hole, where an end portion of the first inner portion disposed in the second hole is separated from the first electrode.
    Type: Grant
    Filed: December 28, 2016
    Date of Patent: May 22, 2018
    Assignee: Samsung Display Co., Ltd.
    Inventors: Tae An Seo, Su Bin Bae, Yu-Gwang Jeong, Hyun Min Cho, Shin Il Choi, Jin Hwan Choi
  • Patent number: 9966563
    Abstract: A display device is disclosed. In one aspect, the display device includes a substrate, a barrier layer formed over the substrate, and an emission layer formed over the barrier layer. The display device also includes a stress-absorbing layer contacting one of the substrate, the barrier layer, and the emission layer. The stress-absorbing layer has a structural density configured to partially vary based on an applied voltage.
    Type: Grant
    Filed: January 11, 2016
    Date of Patent: May 8, 2018
    Assignee: Samsung Display Co., Ltd.
    Inventors: Bo Ik Park, Sun Ho Kim, Young Gug Seol, Jin Hwan Choi
  • Publication number: 20180102072
    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: October 4, 2017
    Publication date: April 12, 2018
    Inventors: JUNG HUN LEE, Sun Ho Kim, Young-Seok Seo, Tae An Seo, Jin Hwan Choi
  • Publication number: 20180103550
    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: Application
    Filed: September 15, 2017
    Publication date: April 12, 2018
    Inventors: TAE AN SEO, Jung Hun Lee, Jin Hwan Choi
  • Publication number: 20180103552
    Abstract: An expandable display device includes: a housing including a fixing portion; a pair of sliding portions provided at respective sides of the fixing portion, each of the sliding portions being configured to be drawn out from the housing along a first direction such that a distance from the respective sliding portion to the fixing portion is changed; and a panel unit including: a fixing display unit on the fixing portion; and a pair of expanding display units on the pair of sliding portions and having a variable exposing area; a flexible display panel including a plurality of pixels and having a screen at a first side thereof; and a support panel attached to a second side of the flexible display panel facing the first side, the support panel including a plurality of slits extending in a second direction crossing the first direction.
    Type: Application
    Filed: October 4, 2017
    Publication date: April 12, 2018
    Inventors: Tae An SEO, Sun Ho KIM, Sung Hoon KIM, Jung Hun LEE, Jin Hwan CHOI
  • Publication number: 20180098440
    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: October 3, 2017
    Publication date: April 5, 2018
    Inventors: Jin Hwan CHOI, Min-Sung KIM, Hyun Woo KOO, Jeong Ho KIM, Tae Woong KIM, Tae An SEO, Jung Hun LEE
  • Patent number: 9935280
    Abstract: In an aspect, a flexible substrate may include a base substrate, an insulating layer positioned on a first surface of the base substrate, a protective film positioned on a second surface facing the first surface of the base substrate and an adhesive layer positioned between the base substrate and the protective film and attaching the protective film on the second surface of the base substrate. The adhesive layer may include a cross-linker.
    Type: Grant
    Filed: February 3, 2016
    Date of Patent: April 3, 2018
    Assignee: SAMSUNG DISPLAY CO., LTD.
    Inventors: Young Gug Seol, Tae Woong Kim, Ju Chan Park, Pil Suk Lee, Jin Hwan Choi
  • Publication number: 20180077808
    Abstract: A display device may include a support plate, a first display unit, a second display unit, a third display unit, a pad, and a circuit board. The first display unit overlaps the support plate. The second display unit is connected to the first display unit. A portion of the second display unit may move relative to the support plate. The third display unit is connected through the first display unit to the second display unit. A portion of the third display may move relative to the support plate. The pad includes a pad electrode that is electrically connected to the first display unit. The circuit board is electrically connected to the pad. A first section of the circuit board is bent relative to a second section of the circuit board and is oriented perpendicular or oblique with respect to the first display unit.
    Type: Application
    Filed: July 21, 2017
    Publication date: March 15, 2018
    Inventors: Tae An SEO, Jung Hun LEE, Jin Hwan CHOI
  • Publication number: 20180059727
    Abstract: A rollable display device includes: a panel supporting portion including a plurality of supporters arranged in substantially parallel relationship and a plurality of hinge linking portions rotatably connecting adjacent supporters to one another, and having rolled and unrolled configurations; a flexible display panel having a display area disposed on the panel supporting portion and a non-display area outside the display area; and a driving module including a flexible circuit board having a bent portion and connected to the non-display area, and a printed circuit board (PCB) connected to the flexible circuit board. The plurality of supporters includes a housing disposed at an outermost side of the rollable display device. The housing has a hole through which the non-display area passes and a chamber communicating with the hole and receiving the driving module. A sealant is disposed between the flexible display panel and the housing at the outside of the hole.
    Type: Application
    Filed: August 10, 2017
    Publication date: March 1, 2018
    Inventors: Tae An SEO, Sun Ho KIM, Jung Hun LEE, Jin Hwan CHOI
  • Publication number: 20180049328
    Abstract: A sliding display device includes a housing, a flexible display panel, a first roller, and a second roller. The housing includes a display region between a first edge region and a second edge region. The distance between the first and second edge regions changes as the housing is expanded and contracted. The flexible display panel slides into and out from the housing through the first and second edge regions as the housing expands and contracts. The first and second rollers guide panel regions into and out of empty spaces in the housing. An assistant roller assists in moving one of the panel regions along a non-intersecting path.
    Type: Application
    Filed: July 26, 2017
    Publication date: February 15, 2018
    Inventors: Jin-Hwan CHOI, Jeong-Ho KIM, Tae-An SEO, Jung-Hun LEE
  • Publication number: 20180033992
    Abstract: A display device includes first and second guide plates facing each other, a pair of first and second guide rails disposed in the first and second guide plates, a first supporting plate disposed between the first guide rails and of the first and second guide plates, the first supporting plate having opposite end portions fixed to a first position of the first and second guide plates, a second supporting plate having opposite end portions coupled to the pair of first guide rails, a third supporting plate having opposite end portions coupled to the pair of second guide rails, and a display panel supported by at least one of the first to third supporting plates. The pair of first guide rails extends from the first position to a second position. The pair of second guide rails extends from the first position to a third position.
    Type: Application
    Filed: July 26, 2017
    Publication date: February 1, 2018
    Inventors: TAE AN SEO, Jung Hun Lee, Jin Hwan Choi
  • Publication number: 20180014415
    Abstract: A rollable display device includes a roller, a display panel configured to be wound around the roller in a wound-up configuration and to display an image in an unwound configuration, a housing configured to house the display panel in the wound-up configuration and the roller, and a roller controller connected to the roller and configured to change a radius of the roller.
    Type: Application
    Filed: June 19, 2017
    Publication date: January 11, 2018
    Inventors: JIN HWAN CHOI, Sun Ho Kim, Jeong Ho Kim, Bo Ik Park, Tae An Seo, Jung Hun Lee
  • Publication number: 20180011516
    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: June 29, 2017
    Publication date: January 11, 2018
    Inventors: TAE AN SEO, Min-Sung Kim, Jung Hun Lee, Jin Hwan Choi
  • Patent number: D819020
    Type: Grant
    Filed: December 9, 2016
    Date of Patent: May 29, 2018
    Assignee: Samsung Display Co., Ltd.
    Inventors: Jin Hwan Choi, Hyun Woo Koo, Kyu Young Kim, Jeong Ho Kim, Tae Woong Kim, Yeon Gon Mo, Tae An Seo, Jung Hun Lee