Patents by Inventor Youn-Gu Lee

Youn-Gu Lee 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: 11659766
    Abstract: One embodiment of the present invention provides an organic semiconductor material for electron transport. The organic semiconductor material for electron transport may have a structure represented by the following Formula 1: wherein X1 and X2 each independently represent oxygen (O) or sulfur (S) and R1 and R2 each may independently contain a pyridine group, a dipyridylbenzene group, a fluoropyridine group, a diphenylthiazole group, a diphenyloxazole group, a triphenyldiazole group, a phenylthiadiazole group, a phenyloxadiazole group, a diphenyltriazole group, a pyrimidine group, a pyrimidylbenzene group, a phenylpyrimidine group, a diphenylphosphine oxide group, a diphenyltriazine group or a phenyltetrazine group.
    Type: Grant
    Filed: June 26, 2018
    Date of Patent: May 23, 2023
    Assignee: Daegu Gyeongbuk Institute of Science & Technology
    Inventors: Youn Gu Lee, Seok Hoon Jang
  • Patent number: 11345688
    Abstract: The compound is represented by Formula 1. In Formula 1, X is O or S, and R1 and R2 are independently selected from the group consisting of aryl, heteroaryl and —P(O)—R3R4, where the aryl, heteroaryl and —P(O)—R3R4 are substituted or unsubstituted with 1 to 4 substituents selected from the group consisting of (C1-C4)alkyl, (C1-C4)alkoxy, aryl and heteroaryl. The “aryl” means a group consisting of 6 to 10 cyclic rings, and the “heteroaryl” means a group consisting of 5 to 14 cyclic rings having 1 to 4 heteroatoms selected from oxygen, sulfur and nitrogen (including quaternary nitrogen). R3 and R4 are independently selected from aryl or heteroaryl.
    Type: Grant
    Filed: January 22, 2018
    Date of Patent: May 31, 2022
    Assignee: DAEGU GYEONGBUK INSTITUTE OF SCIENCE AND TECHNOLOGY
    Inventors: Youn Gu Lee, Hong Gi Kim, Seok Hoon Jang
  • Patent number: 10566104
    Abstract: The present invention relates to a method for manufacturing a nanowire of a core-shell structure including a metal nanowire core and a graphene shell, comprising the steps of: providing a metal nanowire; and coating the metal nanowire with graphene by a plasma chemical vapor deposition method. In addition, the present invention relates to: a nanowire having a core-shell structure including a metal nanowire core and a graphene shell; and a transparent electrode formed from the nanowire. The transparent electrode formed from the nanowire having a core-shell structure has advantages of having controllable copper oxidation characteristics, being optically, electrically and mechanically excellent, and enabling the transparent electrode to be manufactured at a low cost.
    Type: Grant
    Filed: July 9, 2015
    Date of Patent: February 18, 2020
    Assignee: DAEGU GYEONGBUK INSTITUTE OF SCIENCE AND TECHNOLOGY
    Inventors: Youn Gu Lee, Young Jun Jeong, Yu Mi Ahn, Dong Hwa Lee
  • Publication number: 20190359602
    Abstract: The compound is represented by Formula 1. In Formula 1, X is O or S, and R1 and R2 are independently selected from the group consisting of aryl, heteroaryl and —P(O)—R3R4, where the aryl, heteroaryl and —P(O)—R3R4 are substituted or unsubstituted with 1 to 4 substituents selected from the group consisting of (C1-C4)alkyl, (C1-C4)alkoxy, aryl and heteroaryl. The “aryl” means a group consisting of 6 to 10 cyclic rings, and the “heteroaryl” means a group consisting of 5 to 14 cyclic rings having 1 to 4 heteroatoms selected from oxygen, sulfur and nitrogen (including quaternary nitrogen). R3 and R4 are independently selected from aryl or heteroaryl.
    Type: Application
    Filed: January 22, 2018
    Publication date: November 28, 2019
    Inventors: Youn Gu LEE, Hong Gi KIM, Seok Hoon JANG
  • Publication number: 20190189933
    Abstract: One embodiment of the present invention provides an organic semiconductor material for electron transport. The organic semiconductor material for electron transport may have a structure represented by the following Formula 1: wherein X1 and X2 each independently represent oxygen (O) or sulfur (S) and R1 and R2 each may independently contain a pyridine group, a dipyridylbenzene group, a fluoropyridine group, a diphenylthiazole group, a diphenyloxazole group, a triphenyldiazole group, a phenylthiadiazole group, a phenyloxadiazole group, a diphenyltriazole group, a pyrimidine group, a pyrimidylbenzene group, a phenylpyrimidine group, a diphenylphosphine oxide group, a diphenyltriazine group or a phenyltetrazine group.
    Type: Application
    Filed: June 26, 2018
    Publication date: June 20, 2019
    Applicant: DAEGU GYEONGBUK INSTITUTE OF SCIENCE & TECHNOLOGY
    Inventors: Youn Gu LEE, Seok Hoon JANG
  • Patent number: 10312446
    Abstract: The present invention relates to a conductive polymer, the organic photovoltaic cell comprising the same, and the synthesis method of the same. The novel polymer, according to the present invention, displays more excellent optical properties and higher photoelectric conversion efficiency than the conventional RRa (regiorandom) polymer due to its symmetrical structure of quaterthiophene and benzothiadiazole substituted with fluorine.
    Type: Grant
    Filed: June 29, 2017
    Date of Patent: June 4, 2019
    Assignee: Daegu Gyeongbuk Institute of Science and Technology
    Inventors: Youn Gu Lee, Hong Gi Kim
  • Publication number: 20180006228
    Abstract: The present invention relates to a conductive polymer, the organic photovoltaic cell comprising the same, and the synthesis method of the same. The novel polymer, according to the present invention, displays more excellent optical properties and higher photoelectric conversion efficiency than the conventional RRa (regiorandom) polymer due to its symmetrical structure of quaterthiophene and benzothiadiazole substituted with fluorine.
    Type: Application
    Filed: June 29, 2017
    Publication date: January 4, 2018
    Inventors: Youn Gu LEE, Hong Gi KIM
  • Patent number: 9830038
    Abstract: A touch substrate includes a base substrate, a common electrode and a wire electrode. The base substrate has a plurality of common electrode areas. A common electrode is disposed in each of the common electrode areas. The common electrode has a plurality of first electrode lines extended in a first direction and arranged in a second direction crossing the first direction and a plurality of second electrode lines arranged in the first direction. The wire electrode is connected to an end of the common electrode to apply a voltage to the common electrode. The common electrode and the wire electrode are simultaneously formed through a same process using a printing substrate.
    Type: Grant
    Filed: December 10, 2015
    Date of Patent: November 28, 2017
    Assignee: SAMSUNG DISPLAY CO., LTD.
    Inventors: Kyu-Young Kim, Bo-Sung Kim, Youn-Gu Lee, Nam-Ok Jung
  • Publication number: 20170154701
    Abstract: The present invention relates to a method for manufacturing a nanowire of a core-shell structure including a metal nanowire core and a graphene shell, comprising the steps of: providing a metal nanowire; and coating the metal nanowire with graphene by a plasma chemical vapor deposition method. In addition, the present invention relates to: a nanowire having a core-shell structure including a metal nanowire core and a graphene shell; and a transparent electrode formed from the nanowire. The transparent electrode formed from the nanowire having a core-shell structure has advantages of having controllable copper oxidation characteristics, being optically, electrically and mechanically excellent, and enabling the transparent electrode to be manufactured at a low cost.
    Type: Application
    Filed: July 9, 2015
    Publication date: June 1, 2017
    Inventors: Youn Gu Lee, Young Jun Jeong, Yu Mi Ahn, Dong Hwa Lee
  • Publication number: 20160195764
    Abstract: A display apparatus includes first, second and third substrates, first and second liquid crystal layers, first and second polarizing elements and a phase retarding element. The first substrate includes a first electrode part. The first liquid crystal layer is disposed on the first substrate. The second substrate is disposed on the first liquid crystal layer and includes a color filter and a second electrode part on a first surface and a third electrode part on a second surface. The second liquid crystal layer is disposed on the second substrate. The third substrate is disposed on the second liquid crystal layer and includes a fourth electrode part on a first surface. The first polarizing element is disposed under the first liquid crystal layer. The second polarizing element is disposed over the first liquid crystal layer. The phase retarding element is disposed over the second liquid crystal layer.
    Type: Application
    Filed: March 17, 2016
    Publication date: July 7, 2016
    Inventors: DAE-YOUNG LEE, GUG-RAE JO, JAE-HYUK CHANG, YOUN-GU LEE
  • Patent number: 9316877
    Abstract: A display apparatus includes first, second and third substrates, first and second liquid crystal layers, first and second polarizing elements and a phase retarding element. The first substrate includes a first electrode part. The first liquid crystal layer is disposed on the first substrate. The second substrate is disposed on the first liquid crystal layer and includes a color filter and a second electrode part on a first surface and a third electrode part on a second surface. The second liquid crystal layer is disposed on the second substrate. The third substrate is disposed on the second liquid crystal layer and includes a fourth electrode part on a first surface. The first polarizing element is disposed under the first liquid crystal layer. The second polarizing element is disposed over the first liquid crystal layer. The phase retarding element is disposed over the second liquid crystal layer.
    Type: Grant
    Filed: September 6, 2012
    Date of Patent: April 19, 2016
    Assignee: SAMSUNG DISPLAY CO., LTD.
    Inventors: Dae-Young Lee, Gug-Rae Jo, Jae-Hyuk Chang, Youn-Gu Lee
  • Publication number: 20160098130
    Abstract: A touch substrate includes a base substrate, a common electrode and a wire electrode. The base substrate has a plurality of common electrode areas. A common electrode is disposed in each of the common electrode areas. The common electrode has a plurality of first electrode lines extended in a first direction and arranged in a second direction crossing the first direction and a plurality of second electrode lines arranged in the first direction. The wire electrode is connected to an end of the common electrode to apply a voltage to the common electrode. The common electrode and the wire electrode are simultaneously formed through a same process using a printing substrate.
    Type: Application
    Filed: December 10, 2015
    Publication date: April 7, 2016
    Inventors: Kyu-Young KIM, Bo-Sung KIM, Youn-Gu LEE, Nam-Ok JUNG
  • Patent number: 9239651
    Abstract: A touch substrate includes a base substrate, a common electrode and a wire electrode. The base substrate has a plurality of common electrode areas. A common electrode is disposed in each of the common electrode areas. The common electrode has a plurality of first electrode lines extended in a first direction and arranged in a second direction crossing the first direction and a plurality of second electrode lines arranged in the first direction. The wire electrode is connected to an end of the common electrode to apply a voltage to the common electrode. The common electrode and the wire electrode are simultaneously formed through a same process using a printing substrate.
    Type: Grant
    Filed: October 8, 2010
    Date of Patent: January 19, 2016
    Assignee: SAMSUNG DISPLAY CO., LTD.
    Inventors: Kyu-Young Kim, Bo-Sung Kim, Youn-Gu Lee, Nam-Ok Jung
  • Patent number: 9171872
    Abstract: In a method of manufacturing an offset printing substrate and a method of manufacturing a display substrate, the method includes forming a first coating layer on a base substrate on which is formed a first concave pattern having a first width. An intermediate substrate is also formed upon the first coating layer of the base substrate, the intermediate substrate having a pattern corresponding to the first concave pattern. An offset printing substrate is also formed upon the pattern of the intermediate substrate, the offset printing substrate having a second concave pattern is formed to correspond to the pattern of the intermediate substrate, and the second concave pattern has a second width smaller than the first width.
    Type: Grant
    Filed: July 26, 2012
    Date of Patent: October 27, 2015
    Assignee: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Kyu-Young Kim, Youn-Gu Lee, Dae-Young Lee, Nam-Ok Jung
  • Patent number: 8780063
    Abstract: A touch display panel may include a display unit and a touch unit. The display unit may include a first base substrate having a plurality of pixel electrodes, a second base substrate including a common electrode disposed on a first face of the second base substrate, and an electro optical layer disposed between the pixel electrodes and the common electrode. The first face faces the first base substrate. The touch unit includes a color filter layer including a plurality of color filters and a first electrode part including first electrodes disposed on a second face of the second base substrate, and a third base substrate including a second electrode part extended along a direction crossing the first electrodes. The first electrodes may be disposed on a boundary area of the color filters having different colors from each other, so that mixing of the colors is prevented.
    Type: Grant
    Filed: June 29, 2011
    Date of Patent: July 15, 2014
    Assignee: Samsung Display Co., Ltd.
    Inventors: Kyu-Young Kim, Youn-Gu Lee, Nam-Ok Jung, Gug-Rae Jo, Dae-Young Lee
  • Publication number: 20130088669
    Abstract: A display apparatus includes first, second and third substrates, first and second liquid crystal layers, first and second polarizing elements and a phase retarding element The first substrate includes a first electrode part. The first liquid crystal layer is disposed on the first substrate. The second substrate is disposed on the first liquid crystal layer and includes a color filter and a second electrode part on a first surface and a third electrode part on a second surface. The second liquid crystal layer is disposed on fee second substrate. The third substrate is disposed on the second liquid crystal layer and includes a fourth electrode part on a first surface. The first polarizing element is disposed under the first liquid crystal layer. The second polarizing element is disposed over the first liquid crystal layer. The phase retarding element is disposed over the second liquid crystal layer.
    Type: Application
    Filed: September 6, 2012
    Publication date: April 11, 2013
    Inventors: DAE-YOUNG LEE, Gug-Rae Jo, Jae-Hyuk Chang, Youn-Gu Lee
  • Publication number: 20130034657
    Abstract: In a method of manufacturing an offset printing substrate and a method of manufacturing a display substrate, the method includes forming a first coating layer on a base substrate on which is formed a first concave pattern having a first width. An intermediate substrate is also formed upon the first coating layer of the base substrate, the intermediate substrate having a pattern corresponding to the first concave pattern. An offset printing substrate is also formed upon the pattern of the intermediate substrate, the offset printing substrate having a second concave pattern is formed to correspond to the pattern of the intermediate substrate, and the second concave pattern has a second width smaller than the first width.
    Type: Application
    Filed: July 26, 2012
    Publication date: February 7, 2013
    Applicant: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Kyu-Young KIM, Youn-Gu LEE, Dae-Young LEE, Nam-Ok JUNG
  • Patent number: 8365663
    Abstract: A method of forming ink patterns and an apparatus for printing ink patterns capable of reducing the amount of wasted ink and enhancing the printing and positional precision of the shape of ink patterns on a member to be printed, are described herein.
    Type: Grant
    Filed: January 21, 2010
    Date of Patent: February 5, 2013
    Assignee: Samsung Display Co., Ltd.
    Inventors: Bo-Sung Kim, Kyu-Young Kim, Youn-Gu Lee, Chang-Hoon Kim, Nam-Ok Jung
  • Publication number: 20120038567
    Abstract: A touch display panel may include a display unit and a touch unit. The display unit may include a first base substrate having a plurality of pixel electrodes, a second base substrate including a common electrode disposed on a first face of the second base substrate, and an electro optical layer disposed between the pixel electrodes and the common electrode. The first face faces the first base substrate. The touch unit includes a color filter layer including a plurality of color filters and a first electrode part including first electrodes disposed on a second face of the second base substrate, and a third base substrate including a second electrode part extended along a direction crossing the first electrodes. The first electrodes may be disposed on a boundary area of the color filters having different colors from each other, so that mixing of the colors is prevented.
    Type: Application
    Filed: June 29, 2011
    Publication date: February 16, 2012
    Applicant: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Kyu-Young KIM, Youn-Gu LEE, Nam-Ok JUNG, Gug-Rae JO, Dae-Young LEE
  • Publication number: 20110146515
    Abstract: A printing plate for gravure printing includes; a base body, a first convex portion disposed having a first height on the base body, a concave portion disposed between adjacent regions of the first convex portion, and a second convex portion disposed in the concave portion and having a second height smaller than that of the first height, wherein the concave portion includes a first concave portion and a second concave portion and a width of the second concave portion is larger than that of the first concave portion, and the second convex portion is disposed within the second concave portion.
    Type: Application
    Filed: May 27, 2010
    Publication date: June 23, 2011
    Applicant: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Youn-Gu Lee, Seung-Jun Lee, Kyu-Young Kim, Nam-Ok Jung, Jae-Hyuk Chang