Patents by Inventor Hyun-Woo Koo

Hyun-Woo Koo 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: 9905324
    Abstract: A method of fabricating a metal nanowire dispersion solution includes heating a first solution including a metal compound, a catalyst, an organic protection agent and menstruum, thereby forming metal nanowires in the first solution, performing a first cleaning process providing a first solvent into the metal nanowire, thereby separating the organic protection agent surrounding the metal nanowires from the metal nanowires, separating the metal nanowires from the first solution by vacuum-filtering, and dispersing the separated metal nanowires in a dispersion solvent.
    Type: Grant
    Filed: December 23, 2013
    Date of Patent: February 27, 2018
    Assignees: Samsung Display Co., Ltd., Korea Advanced Institute of Science and Technology
    Inventors: Hyun Woo Koo, Tae Woong Kim, Jung Yong Lee, Jae Min Lee
  • Publication number: 20180011517
    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: Application
    Filed: June 30, 2017
    Publication date: January 11, 2018
    Inventors: Jin-Hwan CHOI, Hyun-Woo KOO, Jeong-Ho KIM, Tae-Woong KIM, Bo-Ik PARK, Tae-An SEO, Jung-Hun LEE, Hayk KHACHATRYAN
  • Publication number: 20170358636
    Abstract: A display device including a display panel that displays an image, and a supporting layer positioned on one surface of the display panel. The supporting layer includes a plurality of magnets that are engageable with each other.
    Type: Application
    Filed: June 5, 2017
    Publication date: December 14, 2017
    Inventors: Tae Woong KIM, Hyun Woo KOO
  • Publication number: 20170309846
    Abstract: A display device is disclosed. In one aspect, the display device includes a flexible substrate capable of being bent in a first direction and an insulating layer including a first opening pattern positioned on the flexible substrate and extending in a second direction crossing the first direction.
    Type: Application
    Filed: July 12, 2017
    Publication date: October 26, 2017
    Inventors: Tae Woong Kim, Hyun Woo Koo, Young Gug Seol
  • Patent number: 9728593
    Abstract: An organic light emitting display device includes: a curved organic light emitting display panel. The organic light emitting display panel includes a flexible substrate, a thin film transistor layer including a semiconductor layer, and an organic light emission layer including an organic light emitting material. In the curved organic light emitting display panel, the thin film transistor layer receives a compressive stress, or a neutral plane in which the compressive stress and a tensile stress maintain equilibrium is defined in the thin film transistor layer.
    Type: Grant
    Filed: October 16, 2014
    Date of Patent: August 8, 2017
    Assignee: SAMSUNG DISPLAY CO., LTD
    Inventors: Hyun Woo Koo, Tae Woong Kim, Young Gug Seol
  • Patent number: 9722195
    Abstract: A display device is disclosed. In one aspect, the display device includes a flexible substrate capable of being bent in a first direction and an insulating layer including a first opening pattern positioned on the flexible substrate and extending in a second direction crossing the first direction.
    Type: Grant
    Filed: September 2, 2016
    Date of Patent: August 1, 2017
    Assignee: Samsung Display Co., Ltd.
    Inventors: Tae Woong Kim, Hyun Woo Koo, Young Gug Seol
  • Patent number: 9678539
    Abstract: A display device includes a first body including a first internal space and a first opening at a first side of the first body, a second body including a second internal space and a second opening at a first side of the second body, the second opening facing the first opening, a flexible display panel to display images, the flexible display panel having a changeable display area in accordance with a distance between the first and second bodies, and an arm assembly including a plurality of connecting arms supporting the first and second bodies, the plurality of connecting arms being rotatably coupled to the first and second bodies.
    Type: Grant
    Filed: December 8, 2015
    Date of Patent: June 13, 2017
    Assignee: SAMSUNG DISPLAY CO., LTD.
    Inventors: Khachatryan Hayk, Hyun Woo Koo, Tae Woong Kim
  • Patent number: 9662710
    Abstract: A method of manufacturing silver nanowires includes: forming a first solution including a dispersion stabilizer and a polyol; forming a second solution including a dispersion stabilizer, a silver precursor, a halogen-ion donor, deionized water, and the polyol; forming a third solution by adding the second solution to the first solution; heating the third solution from a first temperature to a second temperature; and forming silver nanowires by maintaining the third solution at the second temperature.
    Type: Grant
    Filed: March 4, 2014
    Date of Patent: May 30, 2017
    Inventors: Hyun-Woo Koo, Tae-Woong Kim, Jung-Yong Lee, Jaemin Lee, Seonju Jeong
  • Publication number: 20170146697
    Abstract: An anti-scratch film, including a film base and an anti-scratch layer on one side of the film base. The anti-scratch layer includes a plurality of protrusions.
    Type: Application
    Filed: February 2, 2017
    Publication date: May 25, 2017
    Inventors: Tae-Woong Kim, Hyun-Woo Koo, Young-Gug Seol, Patrick Lee
  • Publication number: 20170133448
    Abstract: An organic light emitting diode (OLED) display, including a flexible substrate bent in a first direction, an OLED arranged on the flexible substrate, a first thin film transistor connected to the OLED and including a first channel area extending in a second direction crossing the first direction, and one or more additional thin film transistors connected to the first thin film transistor and including corresponding additional channel areas extending in the second direction.
    Type: Application
    Filed: January 23, 2017
    Publication date: May 11, 2017
    Inventors: Tae-Woong KIM, Hyun-Woo KOO, Young-Gug SEOL, Young-Ki HONG, Won-Kyu KWAK, Yang-Wan KIM, Han-Sung BAE
  • Patent number: 9616478
    Abstract: Provided are a bending apparatus and a bending method. According to an aspect of the present invention, there is provided a bending apparatus including a guide portion configured to guide a movement and a bending of a flexible substrate so that the flexible substrate is bent and moved, a first fastening portion configured to fix one side of the flexible substrate that is bent along the guide portion, a second fastening portion configured to fix an other side of the flexible substrate, and a driving portion configured to move at least one of the first fastening portion and the second fastening portion.
    Type: Grant
    Filed: August 29, 2013
    Date of Patent: April 11, 2017
    Assignee: Samsung Display Co., Ltd.
    Inventors: Tae Woong Kim, Young Ki Hong, Hyun Woo Koo, Young Gug Seol
  • Patent number: 9594190
    Abstract: An anti-scratch film, including a film base and an anti-scratch layer on one side of the film base. The anti-scratch layer includes a plurality of protrusions.
    Type: Grant
    Filed: August 27, 2013
    Date of Patent: March 14, 2017
    Assignee: Samsung Display Co., Ltd.
    Inventors: Tae-Woong Kim, Hyun-Woo Koo, Young-Gug Seol, Patrick Lee
  • Patent number: 9553136
    Abstract: An organic light emitting diode (OLED) display, including a flexible substrate bent in a first direction, an OLED arranged on the flexible substrate, a first thin film transistor connected to the OLED and including a first channel area extending in a second direction crossing the first direction, and one or more additional thin film transistors connected to the first thin film transistor and including corresponding additional channel areas extending in the second direction.
    Type: Grant
    Filed: September 20, 2013
    Date of Patent: January 24, 2017
    Assignee: Samsung Display Co., Ltd.
    Inventors: Tae-Woong Kim, Hyun-Woo Koo, Young-Gug Seol, Young-Ki Hong, Won-Kyu Kwak, Yang-Wan Kim, Han-Sung Bae
  • Publication number: 20160372691
    Abstract: A display device is disclosed. In one aspect, the display device includes a flexible substrate capable of being bent in a first direction and an insulating layer including a first opening pattern positioned on the flexible substrate and extending in a second direction crossing the first direction.
    Type: Application
    Filed: September 2, 2016
    Publication date: December 22, 2016
    Inventors: Tae Woong Kim, Hyun Woo Koo, Young Gug Seol
  • Publication number: 20160322565
    Abstract: A flexible organic light-emitting diode display and a method of manufacturing the same are disclosed. In one aspect, the display includes a substrate formed of a first material including a metal and an OLED formed over the substrate.
    Type: Application
    Filed: April 22, 2016
    Publication date: November 3, 2016
    Inventors: Ki Hyun Kim, Sun Ho Kim, Jeong Ho Kim, Hyun Woo Koo, Tae Woong Kim, Yeon Gon Mo
  • Publication number: 20160313762
    Abstract: A flexible display panel and a method of manufacturing the same are disclosed. In one aspect, the flexible display panel includes a flexible substrate configured to display an image. The display also includes a first layer formed over a first surface of the flexible substrate and configured to compress horizontally with a compressive strain force. The display further includes an adhesive interposed between the flexible substrate and the first layer.
    Type: Application
    Filed: April 19, 2016
    Publication date: October 27, 2016
    Inventors: Sun Ho Kim, Bo Ik Park, Ju Chan Park, Hyun Woo Koo, Tae Woong Kim
  • Patent number: 9472650
    Abstract: A method of manufacturing a flexible display device, the method including forming a sacrificial layer on a carrier substrate such that the sacrificial layer includes a hydrogen trap material and amorphous silicon; forming a support layer and a thin film transistor on the sacrificial layer; and separating the support layer from the carrier substrate by irradiating a laser to the sacrificial layer.
    Type: Grant
    Filed: July 28, 2015
    Date of Patent: October 18, 2016
    Assignee: SAMSUNG DISPLAY CO., LTD.
    Inventors: Hyun Woo Koo, Ki Hyun Kim, Sun Ho Kim, Jeong ho Kim
  • Patent number: 9437829
    Abstract: An organic light emitting display device and a method of manufacturing the same are proposed. The organic light emitting display device includes: a first film formed of an organic material, and having first and second surfaces facing each other and a third surface perpendicular to the first and second surfaces; a second film formed on the first film to cover the second and third surfaces of the first film; an organic light emitting unit disposed on the second film; a third film disposed on the second film to cover the organic light emitting unit; and a fourth film disposed on the third film, formed of an organic material, and having fourth and fifth surfaces facing each other, wherein the fifth surface faces the third film.
    Type: Grant
    Filed: September 11, 2012
    Date of Patent: September 6, 2016
    Assignee: Samsung Display Co., Ltd.
    Inventors: Tae-Woong Kim, Hyun-Woo Koo, Hyung-Sik Kim
  • Patent number: 9437830
    Abstract: A display device is disclosed. In one aspect, the display device includes a flexible substrate capable of being bent in a first direction and an insulating layer including a first opening pattern positioned on the flexible substrate and extending in a second direction crossing the first direction.
    Type: Grant
    Filed: January 17, 2014
    Date of Patent: September 6, 2016
    Assignee: Samsung Display Co., Ltd.
    Inventors: Tae Woong Kim, Hyun Woo Koo, Young Gug Seol
  • Publication number: 20160218305
    Abstract: A display device includes: a flexible substrate including a bending area bent in one direction; an insulating layer on the flexible substrate and comprising a plurality of opening patterns spaced apart from each other at the bending area; and a wavy line extending through the plurality of opening patterns.
    Type: Application
    Filed: September 9, 2015
    Publication date: July 28, 2016
    Inventors: Tae Woong Kim, Hyun Woo Koo, Ki Hyun Kim, Young Gug Seol