Patents by Inventor Mi-Yeon Han

Mi-Yeon Han 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).

  • Compound and organic light emitting device comprising the same
    Patent number: 11700768
    Abstract: Provided is a compound of Formula 1: where X is O or S; Ar1 is an aryl having 6 to 20 carbon atoms substituted with at least one functional group selected from the group consisting of cyano, pyridinyl, benzimidazolyl and diphenylphosphine oxide, or a substituted or unsubstituted heteroaryl having 3 to 20 carbon atoms containing at least one N; and Ar2 is a functional group of Formula 2 below, with the proviso that Ar1 and Ar2 are different from each other, where Ar3 is an aryl having 6 to 20 carbon atoms, and m is an integer of 0 to 2, and an organic light emitting device comprising the same.
    Type: Grant
    Filed: March 13, 2018
    Date of Patent: July 11, 2023
    Assignee: LG CHEM, LTD.
    Inventors: Jung Hoon Yang, Dong Hoon Lee, Jung Oh Huh, Boon Jae Jang, Min Young Kang, Dong Uk Heo, Mi Yeon Han, Min Woo Jung
  • Organic light emitting device
    Patent number: 11594685
    Abstract: The present invention relates to an organic light emitting device comprising a light emitting layer and an electron transport layer which satisfy the following mathematical expressions, EHOMO-ET>EHOMO-BH and ELUMO-ET>ELUMO-GH, and having improved driving voltage, efficiency, and lifetime.
    Type: Grant
    Filed: March 26, 2018
    Date of Patent: February 28, 2023
    Assignee: LG CHEM, LTD.
    Inventors: Jung Oh Huh, Dong Hoon Lee, Boon Jae Jang, Min Young Kang, Dong Uk Heo, Mi Yeon Han
  • Heterocyclic compound and organic light emitting device comprising the same
    Patent number: 11453650
    Abstract: Provided is a heterocyclic compound of Chemical Formula 1: where L1 is a single bond or a substituted or unsubstituted C6-60 arylene; L2 is a single bond, a substituted or unsubstituted C6-60 arylene, or a substituted or unsubstituted C5-60 heteroarylene, and Ar1 is one of the following Chemical Formulas 2, 3, 4, or 5: and an organic light emitting device including the same.
    Type: Grant
    Filed: May 31, 2018
    Date of Patent: September 27, 2022
    Assignee: LG CHEM, LTD.
    Inventors: Junghoon Yang, Dong Hoon Lee, Jung Oh Huh, Boon Jae Jang, Dong Uk Heo, Mi Yeon Han, Min Woo Jung
  • Heterocyclic compounds and organic light emitting device using the same
    Patent number: 11312691
    Abstract: The present invention relates to a novel cyclic compound represented by Formula 1, and an organic light emitting device comprising an organic material layer including the novel cyclic compound and having improved efficiency, low driving voltage, and enhanced lifetime characteristic:
    Type: Grant
    Filed: February 21, 2018
    Date of Patent: April 26, 2022
    Assignee: LG CHEM, LTD.
    Inventors: Min Woo Jung, Dong Hoon Lee, Seong Mi Cho, Dong Uk Heo, Mi Yeon Han, Jung Ha Lee
  • Hetero-cyclic compound and organic light emitting device comprising the same
    Patent number: 11228001
    Abstract: Disclosed are a heterocyclic compound represented by Formula 1 and an organic light emitting device using the same. The heterocyclic compound is used as a material for hole injection layer, hole transport layer, hole injection and transport layer, light emission layer, electron transport layer, or electron injection layer of the organic light emitting device and provides improved efficiency, low driving voltage, and improved lifetime characteristic.
    Type: Grant
    Filed: January 10, 2018
    Date of Patent: January 18, 2022
    Assignee: LG CHEM, LTD.
    Inventors: Dong Uk Heo, Dong Hoon Lee, Jung Oh Huh, Boon Jae Jang, Mi Yeon Han, Min Woo Jung
  • Heterocyclic compound and organic light emitting device comprising the same
    Patent number: 11189800
    Abstract: The present disclosure relates to a cyclic compound represented by the following Chemical Formula 1, and an organic light emitting device including the same. The cyclic compound used as a material of an organic material layer of the organic light emitting device provides a low driving voltage and an improved lifetime characteristic of the organic light emitting device.
    Type: Grant
    Filed: April 27, 2018
    Date of Patent: November 30, 2021
    Assignee: LG CHEM, LTD.
    Inventors: Mi Yeon Han, Jung Oh Huh, Boon Jae Jang, Dong Hoon Lee, Dong Uk Heo
  • Heterocyclic compound and organic light emitting device using the same
    Patent number: 11081655
    Abstract: The present disclosure relates to a novel cyclic compound represented by Chemical Formula 1 and an organic light emitting device using the same. The compound is used as a material of an organic material layer of the organic light emitting device.
    Type: Grant
    Filed: March 6, 2018
    Date of Patent: August 3, 2021
    Assignee: LG CHEM, LTD.
    Inventors: Dong Uk Heo, Dong Hoon Lee, Jung Oh Huh, Boon Jae Jang, Mi Yeon Han, Min Woo Jung, Jung Hoon Yang
  • Photoresist stripper composition for manufacturing liquid crystal display
    Patent number: 10859917
    Abstract: The present disclosure relates to a photoresist stripper composition for manufacturing an LCD, and relates to an integrated photoresist stripper composition capable of being used in all processes for manufacturing a TFT-LCD. More specifically, the present disclosure relates to an aqueous photoresist stripper composition capable of being used in all of transition metal, potential metal and oxide semiconductor wires.
    Type: Grant
    Filed: August 10, 2016
    Date of Patent: December 8, 2020
    Assignee: LTC CO., LTD.
    Inventors: Ho-Sung Choi, Kwang-Hyun Ryu, Jong-Il Bae, Jong-Soon Lee, Sang-Ku Ha, Hye-Sung Yang, Mi-Yeon Han, Hyo-Jin Lee
  • Compound and organic light emitting device comprising the same
    Patent number: 10833278
    Abstract: The present invention relates to a novel heterocyclic compound and an organic light emitting device comprising the same.
    Type: Grant
    Filed: April 7, 2017
    Date of Patent: November 10, 2020
    Assignee: LG Chem, Ltd.
    Inventors: Mi Yeon Han, Dong Hoon Lee, Jung Oh Huh, Boon Jae Jang, Dong Uk Heo, Min Woo Jung
  • NOVEL HETEROCYCLIC COMPOUND AND ORGANIC LIGHT EMITTING DEVICE COMPRISING THE SAME
    Publication number: 20200181096
    Abstract: Provided is a heterocyclic compound of Chemical Formula 1: where L1 is a single bond or a substituted or unsubstituted C6-60 arylene; L2 is a single bond, a substituted or unsubstituted C6-60 arylene, or a substituted or unsubstituted C5-60 heteroarylene, and Ar1 is one of the following Chemical Formulas 2, 3, 4, or 5: and an organic light emitting device including the same.
    Type: Application
    Filed: May 31, 2018
    Publication date: June 11, 2020
    Inventors: Junghoon YANG, Dong Hoon LEE, Jung Oh HUH, Boon Jae JANG, Dong Uk HEO, Mi Yeon HAN, Min Woo JUNG
  • NOVEL HETEROCYCLIC COMPOUND AND ORGANIC LIGHT EMITTING DEVICE USING THE SAME
    Publication number: 20190372024
    Abstract: The present disclosure relates to a novel cyclic compound represented by Chemical Formula 1 and an organic light emitting device using the same. The compound is used as a material of an organic material layer of the organic light emitting device.
    Type: Application
    Filed: March 6, 2018
    Publication date: December 5, 2019
    Inventors: Dong Uk HEO, Dong Hoon LEE, Jung Oh HUH, Boon Jae JANG, Mi Yeon HAN, Min Woo JUNG, Jung Hoon YANG
  • NOVEL HETEROCYCLIC COMPOUND AND ORGANIC LIGHT EMITTING DEVICE COMPRISING THE SAME
    Publication number: 20190363260
    Abstract: Provided is a heterocyclic compound of Chemical Formula 1: and an organic electroluminescent device including the same.
    Type: Application
    Filed: April 3, 2018
    Publication date: November 28, 2019
    Inventors: Mi Yeon HAN, Dong Hoon LEE, Jung Oh HUH, Boon Jae JANG, Dong Uk HEO, Min Woo JUNG
  • NOVEL HETEROCYCLIC COMPOUNDS AND ORGANIC LIGHT EMITTING DEVICE USING THE SAME
    Publication number: 20190352270
    Abstract: The present invention relates to a novel cyclic compound represented by Formula 1, and an organic light emitting device comprising an organic material layer including the novel cyclic compound and having improved efficiency, low driving voltage, and enhanced lifetime characteristic:
    Type: Application
    Filed: February 21, 2018
    Publication date: November 21, 2019
    Inventors: Min Woo JUNG, Dong Hoon LEE, Seong Mi CHO, Dong Uk HEO, Mi Yeon HAN, Jung Ha LEE
  • NOVEL COMPOUND AND ORGANIC LIGHT EMITTING DEVICE COMPRISING THE SAME
    Publication number: 20190341558
    Abstract: Provided is a compound of Formula 1: where X is O or S; Ar1 is an aryl having 6 to 20 carbon atoms substituted with at least one functional group selected from the group consisting of cyano, pyridinyl, benzimidazolyl and diphenylphosphine oxide, or a substituted or unsubstituted heteroaryl having 3 to 20 carbon atoms containing at least one N; and Ar2 is a functional group of Formula 2 below, with the proviso that Ar1 and Ar2 are different from each other, where Ar3 is an aryl having 6 to 20 carbon atoms, and m is an integer of 0 to 2, and an organic light emitting device comprising the same.
    Type: Application
    Filed: March 13, 2018
    Publication date: November 7, 2019
    Inventors: Jung Hoon YANG, Dong Hoon LEE, Jung Oh HUH, Boon Jae JANG, Min Young KANG, Dong UK HEO, Mi Yeon HAN, Min Woo JUNG
  • Organic light emitting device
    Patent number: 10461259
    Abstract: The present invention provides an organic light emitting device having improved driving voltage, efficiency and lifetime.
    Type: Grant
    Filed: October 18, 2017
    Date of Patent: October 29, 2019
    Assignee: LG CHEM, LTD.
    Inventors: Boon Jae Jang, Dong Hoon Lee, Jung Oh Huh, Min Young Kang, Dong Uk Heo, Mi Yeon Han, Min Woo Jung
  • NOVEL HETERO-CYCLIC COMPOUND AND ORGANIC LIGHT EMITTING DEVICE COMPRISING THE SAME
    Publication number: 20190245149
    Abstract: Disclosed are a heterocyclic compound represented by Formula 1 and an organic light emitting device using the same. The heterocyclic compound is used as a material for hole injection layer, hole transport layer, hole injection and transport layer, light emission layer, electron transport layer, or electron injection layer of the organic light emitting device and provides improved efficiency, low driving voltage, and improved lifetime characteristic.
    Type: Application
    Filed: January 10, 2018
    Publication date: August 8, 2019
    Inventors: Dong Uk HEO, Dong Hoon LEE, Jung Oh HUH, Boon Jae JANG, Mi Yeon HAN, Min Woo JUNG
  • ORGANIC LIGHT EMITTING DEVICE
    Publication number: 20190214571
    Abstract: The present invention relates to an organic light emitting device comprising a light emitting layer and an electron transport layer which satisfy the following mathematical expressions, EHOMO-ET?EHOMO-BH and ELUMO-ET>ELUMO-GH, and having improved driving voltage, efficiency, and lifetime.
    Type: Application
    Filed: March 26, 2018
    Publication date: July 11, 2019
    Inventors: Jung Oh HUH, Dong Hoon LEE, Boon Jae JANG, Min Young KANG, Dong Uk HEO, Mi Yeon HAN
  • HETEROCYCLIC COMPOUND AND ORGANIC LIGHT EMITTING DEVICE COMPRISING THE SAME
    Publication number: 20190207120
    Abstract: The present disclosure relates to a cyclic compound represented by the following Chemical Formula 1, and an organic light emitting device including the same. The cyclic compound used as a material of an organic material layer of the organic light emitting device provides a low driving voltage and an improved lifetime characteristic of the organic light emitting device.
    Type: Application
    Filed: April 27, 2018
    Publication date: July 4, 2019
    Inventors: Mi Yeon HAN, Jung Oh HUH, Boon Jae JANG, Dong Hoon LEE, Dong Uk HEO
  • NOVEL HETEROCYCLIC COMPOUND AND ORGANIC LIGHT EMITTING DEVICE COMPRISING THE SAME
    Publication number: 20180354913
    Abstract: The present disclosure provides a novel heterocyclic compound and an organic light emitting device comprising the same.
    Type: Application
    Filed: July 20, 2017
    Publication date: December 13, 2018
    Inventors: Min Woo JUNG, Dong Hoon LEE, Jung Oh HUH, Boon Jae JANG, Min Young KANG, Dong Uk HEO, Mi Yeon HAN
  • NOVEL COMPOUND AND ORGANIC LIGHT EMITTING DEVICE COMPRISING THE SAME
    Publication number: 20180351107
    Abstract: The present invention relates to a novel heterocyclic compound and an organic light emitting device comprising the same.
    Type: Application
    Filed: April 7, 2017
    Publication date: December 6, 2018
    Applicant: LG Chem, Ltd.
    Inventors: Mi Yeon HAN, Dong Hoon LEE, Jung Oh HUH, Boon Jae JANG, Dong Uk HEO, Min Woo JUNG