Patents by Inventor Hyun-Sik Seo

Hyun-Sik Seo 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).

  • Publication number: 20240135863
    Abstract: A display device includes a display unit including pixels connected to data lines and scan lines, first and second temperature sensors for sensing first and second temperatures of the display unit, a data driver configured to generate a data signal configured to be supplied to the data lines using output data, and attached to a first printed circuit board configured to be fixed to a rear surface of the display unit, a timing controller configured to generate the output data using input data, and attached to a second printed circuit board configured to be fixed to the rear surface of the display unit, and a storage having a temperature weight table including a weight corresponding to the first and second temperatures and a plurality of temperature tables including temperature information of the display unit corresponding to an attachment position of the second printed circuit board.
    Type: Application
    Filed: July 13, 2023
    Publication date: April 25, 2024
    Inventors: Won Jin SEO, Tae Wan KIM, Hwa An SUNG, Hyun Sik YOON, Jeong Ah LEE, Dae Ho HWANG
  • Publication number: 20240117211
    Abstract: A paint composition is prepared by mixing each of an acrylic resin, an acrylic polyol resin, a polycarbonate diol resin, a diisocyanate, a solvent, and an antibacterial agent in appropriate amounts. As a result, the paint composition has improved physical properties and effective antibacterial activities.
    Type: Application
    Filed: April 28, 2023
    Publication date: April 11, 2024
    Inventors: Hyun Jung Kim, Ho Tak Jeon, Jae Sik Seo, Ji Hwan Park, Dae Joung Cho
  • Patent number: 11945968
    Abstract: Disclosed are an anti-fingerprint film for automobile interiors and methods of producing the same. The anti-fingerprint film for automobile interior parts may include a base layer and an outermost layer located on the base layer including a fluorine-based compound, thus reducing the attachment area of the fingerprint composed of water and oil by virtue of the outermost layer having high water and oil repellency, ultimately removing fingerprint visibility.
    Type: Grant
    Filed: December 14, 2022
    Date of Patent: April 2, 2024
    Assignees: Hyundai Motor Company, Kia Corporation
    Inventors: Hyun Jung Kim, Jae Sik Seo, Ho Tak Jeon, Hee Do Kim, Hyun Don Kim, Seong Uk Juen
  • Patent number: 11923609
    Abstract: Disclosed is a radar antenna including an antenna body including a first plate and a second plate; a slot radiation part and a slot reception part formed in the first plate; a transmission port and a reception port formed in the second plate; and a waveguide formed by assembling the first and second plates. The slot radiation part includes a first slot radiation part configured to radiate a radio wave in a first detection range, and a second slot radiation part configured to radiate radio waves in a second detection range having a larger width and distance than the first detection range.
    Type: Grant
    Filed: May 27, 2020
    Date of Patent: March 5, 2024
    Assignee: AMOTECH CO., LTD.
    Inventors: Hyun Joo Park, Kyung Hyun Ryu, Yun Sik Seo, Se Ho Lee, Jeong Geun Heo, Han Ju Do, Hyung Ii Baek
  • Patent number: 9680122
    Abstract: An organic light emitting display device may include: a cell array comprising gate lines and data lines intersecting each other on a substrate so as to define a plurality of pixel areas, a plurality of thin film transistors formed at intersections between the gate lines and the data lines to correspond to the plurality of pixel areas, and a protective film evenly formed over the substrate to cover the thin film transistors; a plurality of first electrodes formed such that portions of an metal oxide layer corresponding to emission areas of the respective pixel areas, is made conductive, the metal oxide layer evenly disposed on the protective film; a bank constituting the remaining portion of the metal oxide layer in which the first electrodes are not formed and formed so as to have insulating properties; an emission layer formed over the metal oxide layer; and a second electrode formed on the emission layer so as to face the first electrodes.
    Type: Grant
    Filed: February 6, 2017
    Date of Patent: June 13, 2017
    Assignee: LG DISPLAY CO., LTD.
    Inventors: Hyun-Sik Seo, Jong-Woo Kim, Kyung-Han Seo
  • Publication number: 20170149010
    Abstract: An organic light emitting display device may include: a cell array comprising gate lines and data lines intersecting each other on a substrate so as to define a plurality of pixel areas, a plurality of thin film transistors formed at intersections between the gate lines and the data lines to correspond to the plurality of pixel areas, and a protective film evenly formed over the substrate to cover the thin film transistors; a plurality of first electrodes formed such that portions of an metal oxide layer corresponding to emission areas of the respective pixel areas, is made conductive, the metal oxide layer evenly disposed on the protective film; a bank constituting the remaining portion of the metal oxide layer in which the first electrodes are not formed and formed so as to have insulating properties; an emission layer formed over the metal oxide layer; and a second electrode formed on the emission layer so as to face the first electrodes.
    Type: Application
    Filed: February 6, 2017
    Publication date: May 25, 2017
    Inventors: Hyun-Sik Seo, Jong-Woo Kim, Kyung-Han Seo
  • Patent number: 9601556
    Abstract: An organic light emitting display device includes a driving thin film transistor (TFT), the driving thin film TFT includes a lower gate, a source, and a drain on a substrate and on the same layer; a first gate insulating layer covering the lower gate, the source, and the drain; an active layer on the first gate insulating layer; a conductive line contacting the source and the drain; a second gate insulating layer on the active layer; and an upper gate on the second gate insulating layer, wherein the lower gate of the driving TFT is a light shield that blocks light from being irradiated onto the active layer, and the lower gate and the source include the same metal.
    Type: Grant
    Filed: March 1, 2016
    Date of Patent: March 21, 2017
    Assignee: LG DISPLAY CO., LTD.
    Inventors: Hyun Sik Seo, Jong Sik Shim, Kyung Han Seo, Yong Ho Choi, Hyo Jin Park
  • Patent number: 9601550
    Abstract: An organic light emitting display device may include: a cell array comprising gate lines and data lines intersecting each other on a substrate so as to define a plurality of pixel areas, a plurality of thin film transistors formed at intersections between the gate lines and the data lines to correspond to the plurality of pixel areas, and a protective film evenly formed over the substrate to cover the thin film transistors; a plurality of first electrodes formed such that portions of an metal oxide layer corresponding to emission areas of the respective pixel areas, is made conductive, the metal oxide layer evenly disposed on the protective film; a bank constituting the remaining portion of the metal oxide layer in which the first electrodes are not formed and formed so as to have insulating properties; an emission layer formed over the metal oxide layer; and a second electrode formed on the emission layer so as to face the first electrodes.
    Type: Grant
    Filed: May 30, 2014
    Date of Patent: March 21, 2017
    Assignee: LG Display Co., Ltd.
    Inventors: Hyun-Sik Seo, Jong-Woo Kim, Kyung-Han Seo
  • Publication number: 20160181344
    Abstract: An organic light emitting display device includes a driving thin film transistor (TFT), the driving thin film TFT includes a lower gate, a source, and a drain on a substrate and on the same layer; a first gate insulating layer covering the lower gate, the source, and the drain; an active layer on the first gate insulating layer; a conductive line contacting the source and the drain; a second gate insulating layer on the active layer; and an upper gate on the second gate insulating layer, wherein the lower gate of the driving TFT is a light shield that blocks light from being irradiated onto the active layer, and the lower gate and the source include the same metal.
    Type: Application
    Filed: March 1, 2016
    Publication date: June 23, 2016
    Inventors: Hyun Sik SEO, Jong Sik SHIM, Kyung Han SEO, Yong Ho CHOI, Hyo Jin PARK
  • Patent number: 9318612
    Abstract: An array substrate includes: a substrate; a thin film transistor including a gate electrode, an oxide semiconductor layer and source and drain electrodes, wherein a first insulating layer of an inorganic insulating material is disposed between the gate electrode and the oxide semiconductor layer, and wherein a second insulating layer of an inorganic insulating material is disposed between the oxide semiconductor layer and the source and drain electrodes; a passivation layer on the thin film transistor; a first electrode on the passivation layer in the pixel region; and a first hydrogen absorbing layer on at least one of top and bottom surfaces of the first insulating layer, top and bottom surfaces of the second insulating layer and top and bottom surfaces of the passivation layer, the first hydrogen absorbing layer including plurality of particles spaced apart from each other and including one of nickel, palladium and platinum.
    Type: Grant
    Filed: November 11, 2014
    Date of Patent: April 19, 2016
    Assignee: LG DISPLAY CO., LTD.
    Inventors: Hyun-Sik Seo, Kyung-Han Seo
  • Patent number: 9299763
    Abstract: A thin film transistor (TFT) array substrate is disclosed. The TFT array substrate includes a gate line, a first gate electrode branched from the gate line, a gate insulating film formed over the substrate, an active layer formed on the gate insulating film, a data line formed to comprise a plurality of metal layers including a first metal layer and a second metal layer formed of copper (Cu), a source electrode formed on the gate insulating film to comprise the remaining metal layer excluding the second metal layer among the plurality of the metal layers, and a drain electrode formed on the gate insulating film to comprise the remaining metal layer excluding the second metal layer among the plurality of the metal layers.
    Type: Grant
    Filed: December 17, 2013
    Date of Patent: March 29, 2016
    Assignee: LG DISPLAY CO., LTD.
    Inventors: Hyun-Sik Seo, Jong-Woo Kim, Chung-Ho Lee
  • Patent number: 9299761
    Abstract: Disclosed is an organic light emitting display device. The organic light emitting display device includes a switching thin film transistor (TFT) that includes a lower gate, a source, and a drain formed on a substrate and on the same layer, a first gate insulating layer formed to cover the lower gate, the source, and the drain, an active layer formed on the first gate insulating layer, a conductive line formed to contact the source and the drain, a second gate insulating layer formed on the active layer, and an upper gate formed on the second gate insulating layer. The lower gate of the switching TFT is a light shield that blocks light from being irradiated onto the active layer.
    Type: Grant
    Filed: November 5, 2014
    Date of Patent: March 29, 2016
    Assignee: LG Display Co., Ltd.
    Inventors: Hyun Sik Seo, Jong Sik Shim, Kyung Han Seo, Yong Ho Choi, Hyo Jin Park
  • Publication number: 20150187860
    Abstract: Disclosed is an organic light emitting display device. The organic light emitting display device includes a switching thin film transistor (TFT) that includes a lower gate, a source, and a drain formed on a substrate and on the same layer, a first gate insulating layer formed to cover the lower gate, the source, and the drain, an active layer formed on the first gate insulating layer, a conductive line formed to contact the source and the drain, a second gate insulating layer formed on the active layer, and an upper gate formed on the second gate insulating layer. The lower gate of the switching TFT is a light shield that blocks light from being irradiated onto the active layer.
    Type: Application
    Filed: November 5, 2014
    Publication date: July 2, 2015
    Inventors: Hyun Sik SEO, Jong Sik SHIM, Kyung Han SEO, Yong Ho CHOI, Hyo Jin PARK
  • Publication number: 20150144943
    Abstract: An array substrate includes: a substrate; a thin film transistor including a gate electrode, an oxide semiconductor layer and source and drain electrodes, wherein a first insulating layer of an inorganic insulating material is disposed between the gate electrode and the oxide semiconductor layer, and wherein a second insulating layer of an inorganic insulating material is disposed between the oxide semiconductor layer and the source and drain electrodes; a passivation layer on the thin film transistor; a first electrode on the passivation layer in the pixel region; and a first hydrogen absorbing layer on at least one of top and bottom surfaces of the first insulating layer, top and bottom surfaces of the second insulating layer and top and bottom surfaces of the passivation layer, the first hydrogen absorbing layer including plurality of particles spaced apart from each other and including one of nickel, palladium and platinum.
    Type: Application
    Filed: November 11, 2014
    Publication date: May 28, 2015
    Inventors: Hyun-Sik SEO, Kyung-Han SEO
  • Patent number: 8937311
    Abstract: A method of fabricating a thin film transistor includes sequentially forming a first metal layer on a substrate and a second metal layer of copper on the first metal layer; performing a plasma process to form a copper nitride layer on the second metal layer; patterning the copper nitride layer, the second metal layer and the first metal layer to form a gate electrode; forming a first gate insulating layer of silicon nitride on the substrate including the gate electrode; forming a second gate insulating layer of silicon oxide on the first gate insulating layer; forming a semiconductor layer on the second gate insulating layer formed of an oxide semiconductor material; and forming a source electrode and a drain electrode on the semiconductor layer, the source electrode spaced apart from the drain electrode.
    Type: Grant
    Filed: December 17, 2012
    Date of Patent: January 20, 2015
    Assignee: LG Display Co., Ltd.
    Inventors: Hyun-Sik Seo, Bong-Chul Kim, Dae-Won Kim
  • Patent number: 8921837
    Abstract: The present invention is to provide an organic light emitting display device for preventing a thin-film transistor from being deteriorated due to hydrogen when forming a light compensation layer configured to enhance viewing angle, and the organic light emitting display device may include a first substrate and a second substrate comprising a plurality of pixels; a thin-film transistor formed at each pixel of the first substrate; a color filter layer formed at each pixel; an insulating layer formed on the color filter layer; a light compensation layer formed on the insulating layer and made of a material containing no hydrogen; a pixel electrode formed on the light compensation layer of each pixel; an organic light emitting unit formed on the pixel electrode to emit light; and a common electrode formed on the organic light emitting unit.
    Type: Grant
    Filed: December 5, 2012
    Date of Patent: December 30, 2014
    Assignee: LG Display Co., Ltd.
    Inventors: Hyun-Sik Seo, Jeong-Hoon Lee, Dae-Won Kim, Yong-Ho Choi
  • Publication number: 20140353643
    Abstract: An organic light emitting display device may include: a cell array comprising gate lines and data lines intersecting each other on a substrate so as to define a plurality of pixel areas, a plurality of thin film transistors formed at intersections between the gate lines and the data lines to correspond to the plurality of pixel areas, and a protective film evenly formed over the substrate to cover the thin film transistors; a plurality of first electrodes formed such that portions of an metal oxide layer corresponding to emission areas of the respective pixel areas, is made conductive, the metal oxide layer evenly disposed on the protective film; a bank constituting the remaining portion of the metal oxide layer in which the first electrodes are not formed and formed so as to have insulating properties; an emission layer formed over the metal oxide layer; and a second electrode formed on the emission layer so as to face the first electrodes.
    Type: Application
    Filed: May 30, 2014
    Publication date: December 4, 2014
    Applicant: LG DISPLAY CO., LTD.
    Inventors: Hyun-Sik Seo, Jong-Woo Kim, Kyung-Han Seo
  • Publication number: 20140353661
    Abstract: A thin film transistor (TFT) array substrate is disclosed. The TFT array substrate includes a gate line, a first gate electrode branched from the gate line, a gate insulating film formed over the substrate, an active layer formed on the gate insulating film, a data line formed to comprise a plurality of metal layers including a first metal layer and a second metal layer formed of copper (Cu), a source electrode formed on the gate insulating film to comprise the remaining metal layer excluding the second metal layer among the plurality of the metal layers, and a drain electrode formed on the gate insulating film to comprise the remaining metal layer excluding the second metal layer among the plurality of the metal layers.
    Type: Application
    Filed: December 17, 2013
    Publication date: December 4, 2014
    Applicant: LG DISPLAY CO., LTD.
    Inventors: Hyun-Sik SEO, Jong-Woo KIM, Chung-Ho LEE
  • Patent number: RE45579
    Abstract: A thin-film transistor includes a substrate, and a gate including a double-layered structure having first and second metal layers provided on the substrate, the first metal layer being wider than the second metal layer by 1 to 4 ?m. A method of making such a thin-film transistor includes the steps of: depositing a first metal layer on a substrate, depositing a second metal layers directly on the first metal layer; forming a photoresist having a designated width on the second metal layer; patterning the second metal layer via isotropic etching using the photoresist as a mask; patterning the first metal layer by means of an anisotropic etching using the photoresist as a mask, the first metal layer being etched to have the designated width, thus forming a gate having a laminated structure of the first and second metal layers; and removing the photoresist.
    Type: Grant
    Filed: October 5, 2012
    Date of Patent: June 23, 2015
    Assignee: LG Display Co., Ltd.
    Inventors: Byung-Chul Ahn, Hyun-Sik Seo
  • Patent number: RE45841
    Abstract: A thin-film transistor includes a substrate, and a gate including a double-layered structure having first and second metal layers provided on the substrate, the first metal layer being wider than the second metal layer by 1 to 4 ?m. A method of making such a thin-film transistor includes the steps of: depositing a first metal layer on a substrate, depositing a second metal layers directly on the first metal layer; forming a photoresist having a designated width on the second metal layer; patterning the second metal layer via isotropic etching using the photoresist as a mask; patterning the first metal layer by means of an anisotropic etching using the photoresist as a mask, the first metal layer being etched to have the designated width, thus forming a gate having a laminated structure of the first and second metal layers; and removing the photoresist.
    Type: Grant
    Filed: October 5, 2012
    Date of Patent: January 12, 2016
    Assignee: LG DISPLAY CO., LTD.
    Inventors: Byung-Chul Ahn, Hyun-Sik Seo