Patents Assigned to HEESUNG MATERIAL LTD.
  • HETEROCYCLIC COMPOUND AND ORGANIC LIGHT EMITTING DEVICE COMPRISING SAME
    Publication number: 20200308150
    Abstract: The present specification relates to a heterocyclic compound represented by Chemical Formula 1, and an organic light emitting device comprising the same.
    Type: Application
    Filed: October 1, 2018
    Publication date: October 1, 2020
    Applicant: HEESUNG MATERIAL LTD.
    Inventors: Gi-Back LEE, Seong-Jong PARK, Ji-Young KIM, Won-Jang JEONG, Jin-Seok CHOI, Dae-Hyuk CHOI, Joo-Dong LEE
  • HETEROCYCLIC COMPOUND AND ORGANIC LIGHT EMITTING ELEMENT COMPRISING SAME
    Publication number: 20200266355
    Abstract: The present specification relates to a heterocyclic compound represented by Chemical Formula 1, and an organic light emitting device comprising the same.
    Type: Application
    Filed: September 17, 2018
    Publication date: August 20, 2020
    Applicant: HEESUNG MATERIAL LTD.
    Inventors: Geon-Yu PARK, Young-Seok NO, Seung-Gyu YANG, Ju-Hyon CHA, Dong-Jun KIM, Dae-Hyuk CHOI, Joo-Dong LEE
  • HETEROCYCLIC COMPOUND AND ORGANIC LIGHT EMITTING DEVICE USING SAME
    Publication number: 20200243775
    Abstract: The present specification relates to a hetero-cyclic compound represented by Chemical Formula 1, and an organic light emitting device comprising the same.
    Type: Application
    Filed: October 18, 2018
    Publication date: July 30, 2020
    Applicant: HEESUNG MATERIAL LTD.
    Inventors: Hyun-Ju LA, Yu-Jin HEO, Won-Jang JEONG, Jin-Seok CHOI, Dae-Hyuk CHOI, Joo-Dong LEE
  • HETEROCYCLIC COMPOUND AND ORGANIC LIGHT EMITTING DEVICE COMPRISING SAME
    Publication number: 20200131133
    Abstract: The present specification relates to a heterocyclic compound represented by Chemical Formula 1, and an organic light emitting device comprising the same.
    Type: Application
    Filed: December 26, 2018
    Publication date: April 30, 2020
    Applicant: HEESUNG MATERIAL LTD.
    Inventors: Hyun-Ju LA, Seong-Jong PARK, Won-Jang JEONG, Jin-Seok CHOI, Dae-Hyuk CHOI, Joo-Dong LEE
  • HETEROCYCLIC COMPOUND AND ORGANIC LIGHT EMITTING ELEMENT COMPRISING SAME
    Publication number: 20200123133
    Abstract: The present specification relates to a heterocyclic compound represented by Chemical Formula 1, and an organic light emitting device comprising the same.
    Type: Application
    Filed: March 26, 2018
    Publication date: April 23, 2020
    Applicant: HEESUNG MATERIAL LTD.
    Inventors: Young Seok NO, Ju Hyon CHA, Dongjun KIM
  • ORGANIC LIGHT EMITTING ELEMENT AND COMPOSITION FOR ORGANIC MATERIAL LAYER IN ORGANIC LIGHT EMITTING ELEMENT
    Publication number: 20200119285
    Abstract: The present specification relates to an organic light emitting device comprising a first electrode, a second electrode, and one or more organic material layers provided between the first electrode and the second electrode, wherein one or more layers of the organic material layers comprise a heterocyclic compound represented by Chemical Formula 1 and a heterocyclic compound represented by Chemical Formula 2 at the same time, and a composition for an organic material layer of an organic light emitting device.
    Type: Application
    Filed: March 26, 2018
    Publication date: April 16, 2020
    Applicant: HEESUNG MATERIAL LTD.
    Inventors: Young Seok NO, Jiyoon BYUN, Dongjun KIM
  • ORGANIC LIGHT EMITTING ELEMENT AND COMPOSITION FOR ORGANIC MATERIAL LAYER IN ORGANIC LIGHT EMITTING ELEMENT
    Publication number: 20200111969
    Abstract: The present specification relates to an organic light emitting device comprising a first electrode, a second electrode, and one or more organic material layers provided between the first electrode and the second electrode, wherein one or more layers of the organic material layers comprise a heterocyclic compound represented by Chemical Formula 1 and a heterocyclic compound represented by Chemical Formula 2 at the same time, and a composition for an organic material layer of an organic light emitting device.
    Type: Application
    Filed: March 26, 2018
    Publication date: April 9, 2020
    Applicant: HEESUNG MATERIAL LTD.
    Inventors: Young Seok NO, Ju Hyon CHA, Dongjun KIM
  • ORGANIC LIGHT-EMITTING DEVICE
    Publication number: 20200066996
    Abstract: The present application provides a hetero-cyclic compound capable of greatly enhancing a lifetime, efficiency, electrochemical stability and thermal stability of an organic light emitting device, and an organic light emitting device containing the hetero-cyclic compound in an organic compound layer.
    Type: Application
    Filed: December 19, 2017
    Publication date: February 27, 2020
    Applicant: HEESUNG MATERIAL LTD.
    Inventors: Hyun Ju LA, Yun Ji LEE, Gi Back LEE, Won Jang JEONG, Jin Seok CHOI, Dae Hyuk CHOI
  • ORGANIC LIGHT EMITTING ELEMENT AND COMPOSITION FOR ORGANIC MATERIAL LAYER OF ORGANIC LIGHT EMITTING ELEMENT
    Publication number: 20190393430
    Abstract: The present application provides a hetero-cyclic compound capable of greatly enhancing lifetime, efficiency, electrochemical stability and thermal stability of an organic light emitting device, and an organic light emitting device containing the hetero-cyclic compound in an organic compound layer.
    Type: Application
    Filed: December 20, 2017
    Publication date: December 26, 2019
    Applicant: HEESUNG MATERIAL LTD.
    Inventors: Geon Yu PARK, Dongjun KIM, Jin Seok CHOI, Dae Hyuk CHOI, Joo Dong LEE
  • Heterocyclic compound and organic light-emitting element using same
    Patent number: 10454043
    Abstract: The present specification relates to a novel hetero-cyclic compound and an organic light emitting device using the same.
    Type: Grant
    Filed: October 30, 2015
    Date of Patent: October 22, 2019
    Assignee: HEESUNG MATERIAL LTD.
    Inventors: Mi-Jin Kim, Kee-Yong Kim, Yang-Soo Ha, Jin-Seok Choi, Dae-Hyuk Choi, Sung-Jin Eum, Joo-Dong Lee
  • HETEROCYCLIC COMPOUND AND ORGANIC LIGHT EMITTING DEVICE USING SAME
    Publication number: 20190319195
    Abstract: The present application provides a hetero-cyclic compound capable of significantly enhancing lifespan, efficiency, electrochemical stability and thermal stability of an organic light emitting device, and an organic light emitting device containing the hetero-cyclic compound in an organic compound layer.
    Type: Application
    Filed: July 6, 2017
    Publication date: October 17, 2019
    Applicant: Heesung Material Ltd.
    Inventors: Gi-Back LEE, Han-Kook OH, Yong-Geun JUNG, Jun-Tae MO, Won-Jang JEONG, Jin-Seok CHOI, Dae-Hyuk CHOI, Joo-Dong LEE
  • Heterocyclic compound and organic light emitting element using same
    Patent number: 10446765
    Abstract: The present specification relates to a novel hetero-cyclic compound, and an organic light emitting device using the same.
    Type: Grant
    Filed: June 30, 2015
    Date of Patent: October 15, 2019
    Assignee: HEESUNG MATERIAL LTD.
    Inventors: Jung-Hyun Lee, Su-Jin Jung, Sang-Kyu Kang, Kee-Yong Kim, Dong-Jun Kim, Jin-Seok Choi, Dae-Hyuk Choi, Sung-Jin Eum, Joo-Dong Lee
  • HETEROCYCLIC COMPOUND AND ORGANIC LIGHT EMITTING ELEMENT USING SAME
    Publication number: 20190312211
    Abstract: The present application relates to a hetero-cyclic compound represented by Chemical Formula 1, and an organic light emitting device comprising the same.
    Type: Application
    Filed: July 11, 2017
    Publication date: October 10, 2019
    Applicant: HEESUNG MATERIAL LTD.
    Inventors: Yun-Ji LEE, Jun-Tae MO, Yong-Geun JUNG, Won-Jang JEONG, Jin-Seok CHOI, Dae-Hyuk CHOI, Joo-Dong LEE
  • HETEROCYCLIC COMPOUND AND ORGANIC LIGHT-EMITTING ELEMENT USING SAME
    Publication number: 20190288218
    Abstract: The present application relates to a hetero-cyclic compound represented by Chemical Formula 1, and an organic light emitting device comprising the same.
    Type: Application
    Filed: November 30, 2017
    Publication date: September 19, 2019
    Applicant: HEESUNG MATERIAL LTD.
    Inventors: Hyun-Ju LA, Yu-Jin HEO, Won-Jang JEONG, Jin-Seok CHOI, Dae-Hyuk CHOI, Joo-Dong LEE
  • HETEROCYCLIC COMPOUND AND ORGANIC LIGHT EMITTING ELEMENT USING SAME
    Publication number: 20190263834
    Abstract: The present application relates to a hetero-cyclic compound represented by Chemical Formula 1, and an organic light emitting device comprising the same.
    Type: Application
    Filed: November 24, 2017
    Publication date: August 29, 2019
    Applicant: HEESUNG MATERIAL LTD.
    Inventors: Won-Jang JEONG, Yun-Ji LEE, Gi-Back LEE, Jin-Seok CHOI, Dae-Hyuk CHOI, Joo-Dong LEE
  • Hetero-cyclic compound and organic light emitting device using the same
    Patent number: 10381577
    Abstract: The present application provides a hetero-cyclic compound which may significantly improve the lifetime, efficiency, electrochemical stability, and thermal stability of an organic light emitting device, and an organic light emitting device in which the hetero-cyclic compound is contained in an organic compound layer.
    Type: Grant
    Filed: July 27, 2016
    Date of Patent: August 13, 2019
    Assignee: HEESUNG MATERIAL LTD.
    Inventors: Geon-Yu Park, Han-Kook Oh, Yun-Ji Lee, Jae-Yeol Ma, Dong-Jun Kim, Jin-Seok Choi, Dae-Hyuk Choi, Joo-Dong Lee
  • HETEROCYCLIC COMPOUND, AND ORGANIC LIGHT-EMITTING DEVICE USING SAME
    Publication number: 20190233398
    Abstract: The present application provides a hetero-cyclic compound capable of significantly enhancing lifespan, efficiency, electrochemical stability and thermal stability of an organic light emitting device, and an organic light emitting device containing the hetero-cyclic compound in an organic compound layer.
    Type: Application
    Filed: July 6, 2017
    Publication date: August 1, 2019
    Applicant: HEESUNG MATERIAL LTD.
    Inventors: Han-Kook OH, Jun-Tae MO, Yong-Geun JUNG, Won-Jang JEONG, Jin-Seok CHOI, Dae-Hyuk CHOI, Joo-Dong LEE
  • Heterocyclic compound and organic light emitting device using same
    Patent number: 10344030
    Abstract: The present application provides a hetero-cyclic compound which may significantly improve the service life, efficiency, electrochemical stability, and thermal stability of an organic light emitting device, and an organic light emitting device in which the hetero-cyclic compound is contained in an organic compound layer.
    Type: Grant
    Filed: May 15, 2015
    Date of Patent: July 9, 2019
    Assignee: HEESUNG MATERIAL LTD.
    Inventors: Jung-Hyun Lee, Kee-Yong Kim, Yong-Hoon An, Jin-Seok Choi, Dae-Hyuk Choi, Sung-Jin Eum, Joo-Dong Lee
  • Nitrogen-containing polycyclic compound and organic light emitting element using same
    Patent number: 10177319
    Abstract: The present application relates to a polycyclic compound including nitrogen and an organic light emitting device including the same.
    Type: Grant
    Filed: October 29, 2015
    Date of Patent: January 8, 2019
    Assignee: HEESUNG MATERIAL LTD.
    Inventors: Young-Seok No, Kee-Yong Kim, Hyo-Kyun Ham, Jin-Seok Choi, Dae-Hyuk Choi, Sung-Jin Eum, Joo-Dong Lee
  • HETEROCYCLIC COMPOUND AND ORGANIC LIGHT EMITTING DEVICE USING SAME
    Publication number: 20180366652
    Abstract: The present application provides a hetero-cyclic compound which may significantly improve the service life, efficiency, electrochemical stability, and thermal stability of an organic light emitting device, and an organic light emitting device in which the hetero-cyclic compound is contained in an organic compound layer.
    Type: Application
    Filed: December 1, 2016
    Publication date: December 20, 2018
    Applicant: HEESUNG MATERIAL LTD.
    Inventors: Jun-Tae MO, Yong-Geun JUNG, Won-Jang JEONG, Dae-Hyuk CHOI, Joo-Dong LEE