Patents by Inventor Hyun-Jin Cho

Hyun-Jin Cho 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: 11148247
    Abstract: A substrate polishing system includes: a polishing machine and a substrate transporter. The polishing machine includes: a lower surface plate to which a substrate is mounted, and an upper surface plate which faces the lower surface plate and polishes the substrate in cooperation with the lower surface plate, the upper surface plate having a larger area than the substrate mounted on the lower surface plate. The substrate transporter is adjacent to the polishing machine and commonly transports the substrate to and from the polishing machine in a first direction, attaches the substrate to the lower surface plate before polishing thereof, and separates from the lower surface plate the substrate after polishing thereof.
    Type: Grant
    Filed: July 31, 2017
    Date of Patent: October 19, 2021
    Assignee: SAMSUNG DISPLAY CO., LTD.
    Inventors: Hyun Jin Cho, Joon-Hwa Bae, Byoung Kwon Choo, Byung Hoon Kang, Jun Hyuk Cheon, Jeong-Hye Choi, Young Ho Jeong, Woo Jin Cho
  • Publication number: 20210274153
    Abstract: A display device includes a display panel including a plurality of pixels each including a light emitting layer, and a stereoscopic lens including a curved base disposed on a surface of the display panel with a predetermined radius of curvature, and a plurality of lenses disposed on the curved base and inclined from a side of the display panel. A thickness of the curved base of the stereoscopic lens increases as a distance from a center of the stereoscopic lens increases.
    Type: Application
    Filed: September 16, 2020
    Publication date: September 2, 2021
    Inventors: Hyun Jin CHO, Beom Shik KIM, Jae Joong KWON
  • Patent number: 11086130
    Abstract: An optical device is provided. The optical device includes: a lens including first and second reflective members; and a flexible display device including a first display area disposed on a first side surface of the lens and a second display area disposed on a second side surface of the lens, wherein the first reflective member is configured to reflect a first image displayed on the first display area to a first surface of the lens, and the second reflective member is configured to reflect a second image displayed on the second display area to the first surface of the lens.
    Type: Grant
    Filed: July 17, 2019
    Date of Patent: August 10, 2021
    Assignee: Samsung Display Co., Ltd.
    Inventors: Jae Joong Kwon, Hyun Jin Cho, Ju Hwa Ha, Jeong Woo Park, Su Bin Jung
  • Patent number: 11067819
    Abstract: A optical device includes: a display device configured to output a display image; a lens on one side of the display device; and a polarization control unit between the display device and the lens and configured to output the display image output from the display device as first polarized light or second polarized light, wherein the lens comprises: a first polarizing mirror configured to reflect a display image of the first polarized light and to transmit a display image of the second polarized light; and a second polarizing mirror configured to reflect a display image of the second polarized light and to transmit a display image of the first polarized light.
    Type: Grant
    Filed: May 22, 2019
    Date of Patent: July 20, 2021
    Assignee: Samsung Display Co., Ltd.
    Inventors: Hyun Jin Cho, Jae Joong Kwon, Ju Hwa Ha, Jeong Woo Park, Su Bin Jung
  • Patent number: 10998343
    Abstract: A thin-film transistor (TFT) array substrate is provided. The TFT array substrate includes a base substrate, a semiconductor layer disposed on the base substrate, an insulating layer disposed on the semiconductor layer, and a gate electrode disposed on the insulating layer. A top surface of a portion of the insulating layer overlapping the semiconductor layer in a plan view of the base substrate and a top surface of the gate electrode are placed on the same level.
    Type: Grant
    Filed: October 3, 2019
    Date of Patent: May 4, 2021
    Assignee: SAMSUNG DISPLAY CO., LTD.
    Inventors: Byoung Kwon Choo, Joon Hwa Bae, Hyun Jin Cho, Jun Hyuk Cheon, Zi Yeon Yoon, Woo Jin Cho, Sung Hwan Choi, Jeong Hye Choi
  • Patent number: 10989720
    Abstract: Provided is a method for quantifying A? in plasma by treating the plasma with MPP and/or TCEP, and a method for diagnosing, using the quantifying method, whether or not clinical cognitive deterioration and pathological A? accumulation occur. Through cut-off values of measured values measured by the method for quantifying A? according to the present subject matter, it is possible to identify normal, MCI and AD subjects and determine whether or not accumulation of A? in the brain occurs, and it is possible to predict progression to AD.
    Type: Grant
    Filed: April 30, 2016
    Date of Patent: April 27, 2021
    Assignee: Seoul National University R&DB Foundation
    Inventors: Inhee Mook, Jong-Chan Park, Hyun Jin Cho, Sun-Ho Han
  • Patent number: 10910605
    Abstract: In a method of manufacturing a display device, the method includes: forming a conductive layer on a base; forming an organic layer, with a hole partially exposing the conductive layer, on the conductive layer; polishing an upper surface of the organic layer; and forming a light emitting element on the polished organic layer.
    Type: Grant
    Filed: May 26, 2020
    Date of Patent: February 2, 2021
    Assignee: Samsung Display Co., Ltd.
    Inventors: Joon Hwa Bae, Hyun Jin Cho, Byoung Kwon Choo, Woo Jin Cho
  • Publication number: 20200403174
    Abstract: The present disclosure provides a quantum dot (QD) light emitting diode including: a first electrode; a second electrode facing the first electrode; a QD emitting material layer positioned between the first electrode and the second electrode and including a QD and an organic material; a hole auxiliary layer positioned between the first electrode and the QD emitting material layer; and an electron auxiliary layer positioned between the QD emitting material layer and the second electrode, wherein the organic material has a highest occupied molecular orbital (HOMO) level higher than a material of the hole auxiliary layer.
    Type: Application
    Filed: June 23, 2020
    Publication date: December 24, 2020
    Applicants: LG DISPLAY CO., LTD., Korea Advanced Institute of Science and Technology
    Inventors: Kyu-Nam KIM, Duk-Young JEON, Hyun-Jin CHO, Sun-Joong PARK
  • Publication number: 20200287171
    Abstract: In a method of manufacturing a display device, the method includes: forming a conductive layer on a base; forming an organic layer, with a hole partially exposing the conductive layer, on the conductive layer; polishing an upper surface of the organic layer; and forming a light emitting element on the polished organic layer.
    Type: Application
    Filed: May 26, 2020
    Publication date: September 10, 2020
    Inventors: Joon Hwa BAE, Hyun Jin CHO, Byoung Kwon CHOO, Woo Jin CHO
  • Publication number: 20200222974
    Abstract: Provided is a molten material treatment apparatus including: a container having an upper portion, on which a molten material injection part is disposed, and a bottom part in which a hole is formed; a gas injection part attached to the bottom part between the molten material injection part and the hole; a chamber part formed on the upper portion of the container so as to face the gas injection part and having an inside open downward; and a plurality of vertical members disposed so as to cross a plurality of positions of a rotary flow region formed between the chamber part and the bottom part, wherein an inclusion removal efficiency can be improved while maintaining the molten material surface by a method in which a plurality of mutually different rotary flows are generated in a plurality of sections within the rotary flow region and are partially overlapped.
    Type: Application
    Filed: July 12, 2018
    Publication date: July 16, 2020
    Inventors: Hyun Jin CHO, Ju Han CHOI, Sang Woo HAN, Tae In CHUNG, Jang Hoon KIM
  • Patent number: 10710152
    Abstract: Provided is a meniscus flow control device that includes: a meniscus flow detection unit for detecting, in a meniscus flow form of molten steel, relative temperature values for positions measured by temperature measurers, and relatively comparing the temperature values measured by the temperature measurers to thereby determine the flow state of the molten steel meniscus to be normal or abnormal; a magnetic field generation unit, installed outside a mold, for generating a magnetic field and controlling the flow of the molten steel by the magnetic field; and a flow control unit for maintaining the operation of the magnetic field generation unit in the current state when the meniscus flow state detected by the meniscus flow detection unit is determined to be normal, and for controlling the magnetic field generation unit to adjust the meniscus flow to be normal when the detected meniscus flow state is determined to be abnormal.
    Type: Grant
    Filed: November 19, 2015
    Date of Patent: July 14, 2020
    Assignee: POSCO
    Inventors: Sang Woo Han, Seon Yong Jin, Hyun Jin Cho
  • Patent number: 10700310
    Abstract: In a method of manufacturing a display device, the method includes: forming a conductive layer on a base; forming an organic layer, with a hole partially exposing the conductive layer, on the conductive layer; polishing an upper surface of the organic layer; and forming a light emitting element on the polished organic layer.
    Type: Grant
    Filed: June 13, 2018
    Date of Patent: June 30, 2020
    Assignee: Samsung Display Co., Ltd.
    Inventors: Joon Hwa Bae, Hyun Jin Cho, Byoung Kwon Choo, Woo Jin Cho
  • Patent number: 10586855
    Abstract: A method of forming a gate structure for a semiconductor device that includes forming first spacers on the sidewalls of replacement gate structures that are present on a fin structure, wherein an upper surface of the first spacers is offset from an upper surface of the replacement gate structure, and forming at least second spacers on the first spacers and the exposed surfaces of the replacement gate structure. The method may further include substituting the replacement gate structure with a functional gate structure having a first width portion in a first space between adjacent first spacers, and a second width portion having a second width in a second space between adjacent second spacers, wherein the second width is greater than the first width.
    Type: Grant
    Filed: April 24, 2018
    Date of Patent: March 10, 2020
    Assignees: INTERNATIONAL BUSINESS MACHINES CORPORATION, GLOBALFOUNDRIES INC.
    Inventors: Hyun-Jin Cho, Tenko Yamashita, Hui Zang
  • Patent number: 10584032
    Abstract: Provided is a method for preparing boron nitride nanotubes, the method including: injecting a boron-metal catalyst composite into a reaction chamber; injecting a nitrogen precursor into the reaction chamber; producing a decomposition product of the boron-metal catalyst composite in a gas state by irradiating the boron-metal catalyst composite with a carbon dioxide laser or a free electron laser; and forming boron nitride nanotubes by reacting the decomposition product of the boron-metal catalyst composite in the gas state with the nitrogen precursor.
    Type: Grant
    Filed: July 20, 2017
    Date of Patent: March 10, 2020
    Assignee: KOREA INSTITUTE OF SCIENCE AND TECHNOLOGY
    Inventors: Myung Jong Kim, Hyun Jin Cho, Seokhoon Ahn, Se Gyu Jang, Soo Min Kim, Dong Ick Son, Jun Hee Kim, Tae Hoon Seo
  • Publication number: 20200057306
    Abstract: An optical device includes: a lens including a first reflector; a display device at a first side surface of the lens and including a plurality of subpixels; and a lens array between the lens and the display device and including a plurality of lenses configured to condense light from the subpixels onto the first reflector.
    Type: Application
    Filed: August 15, 2019
    Publication date: February 20, 2020
    Inventors: Ju Hwa HA, Jae Joong KWON, Jeong Woo PARK, Su Bin JUNG, Hyun Jin CHO
  • Publication number: 20200035715
    Abstract: A thin-film transistor (TFT) array substrate is provided. The TFT array substrate includes a base substrate, a semiconductor layer disposed on the base substrate, an insulating layer disposed on the semiconductor layer, and a gate electrode disposed on the insulating layer. A top surface of a portion of the insulating layer overlapping the semiconductor layer in a plan view of the base substrate and a top surface of the gate electrode are placed on the same level.
    Type: Application
    Filed: October 3, 2019
    Publication date: January 30, 2020
    Inventors: BYOUNG KWON CHOO, Joon Hwa Bae, Hyun Jin Cho, Jun Hyuk Cheon, Zi Yeon Yoon, Woo Jin Cho, Sung Hwan Chol, Jeong Hye Choi
  • Publication number: 20200026082
    Abstract: An augmented reality providing apparatus is provided. The augmented reality providing apparatus includes a lens including a first lens portion including a first reflective member, and a second lens portion including a second reflective member, and a display device on one side of the lens for displaying first and second images, wherein the first reflective member reflects the first image at a first angle, and the second reflective member reflects the second image at a second angle that is different from the first angle.
    Type: Application
    Filed: June 3, 2019
    Publication date: January 23, 2020
    Inventors: Jeong Woo PARK, Jae Joong KWON, Ju Hwa HA, Hyun Jin CHO, Su Bin JUNG
  • Publication number: 20200026084
    Abstract: An optical device is provided. The optical device includes: a lens including first and second reflective members; and a flexible display device including a first display area disposed on a first side surface of the lens and a second display area disposed on a second side surface of the lens, wherein the first reflective member is configured to reflect a first image displayed on the first display area to a first surface of the lens, and the second reflective member is configured to reflect a second image displayed on the second display area to the first surface of the lens.
    Type: Application
    Filed: July 17, 2019
    Publication date: January 23, 2020
    Inventors: Jae Joong Kwon, Hyun Jin Cho, Ju Hwa Ha, Jeong Woo Park, Su Bin Jung
  • Publication number: 20200026093
    Abstract: A optical device includes: a display device configured to output a display image; a lens on one side of the display device; and a polarization control unit between the display device and the lens and configured to output the display image output from the display device as first polarized light or second polarized light, wherein the lens comprises: a first polarizing mirror configured to reflect a display image of the first polarized light and to transmit a display image of the second polarized light; and a second polarizing mirror configured to reflect a display image of the second polarized light and to transmit a display image of the first polarized light.
    Type: Application
    Filed: May 22, 2019
    Publication date: January 23, 2020
    Inventors: Hyun Jin CHO, Jae Joong KWON, Ju Hwa HA, Jeong Woo PARK, Su Bin JUNG
  • Patent number: 10475817
    Abstract: A thin-film transistor (TFT) array substrate is provided. The TFT array substrate includes a base substrate, a semiconductor layer disposed on the base substrate, an insulating layer disposed on the semiconductor layer, and a gate electrode disposed on the insulating layer. A top surface of a portion of the insulating layer overlapping the semiconductor layer in a plan view of the base substrate and a top surface of the gate electrode are placed on the same level.
    Type: Grant
    Filed: May 4, 2018
    Date of Patent: November 12, 2019
    Assignee: SAMSUNG DISPLAY CO., LTD.
    Inventors: Byoung Kwon Choo, Joon Hwa Bae, Hyun Jin Cho, Jun Hyuk Cheon, Zi Yeon Yoon, Woo Jin Cho, Sung Hwan Choi, Jeong Hye Choi