Patents by Inventor Gi-Back LEE

Gi-Back 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).

  • Heterocyclic compound and organic light-emitting device comprising same
    Patent number: 12565484
    Abstract: The present application provides a heterocyclic compound capable of significantly enhancing lifetime, efficiency, electrochemical stability and thermal stability of an organic light emitting device, and an organic light emitting device comprising the heterocyclic compound in an organic material layer.
    Type: Grant
    Filed: November 16, 2020
    Date of Patent: March 3, 2026
    Assignee: LT MATERIALS CO., LTD.
    Inventors: Gi-Back Lee, Seong-Jong Park, Won-Jang Jeong, Dong-Jun Kim
  • Heterocyclic compound and organic light-emitting device comprising same
    Patent number: 12552985
    Abstract: The present specification relates to a heterocyclic compound represented by Chemical Formula 1, and an organic light emitting device including the same.
    Type: Grant
    Filed: November 27, 2020
    Date of Patent: February 17, 2026
    Assignee: LT MATERIALS CO., LTD.
    Inventors: Gi-Back Lee, Nam-Jin Lee, Won-Jang Jeong, Dong-Jun Kim
  • Heterocyclic compound and organic light-emitting device comprising same
    Patent number: 12528763
    Abstract: The present specification relates to a heterocyclic compound represented by Chemical Formula 1, and an organic light emitting device comprising the same.
    Type: Grant
    Filed: October 20, 2020
    Date of Patent: January 20, 2026
    Assignee: LT MATERIALS CO., LTD.
    Inventors: Gi-Back Lee, Ji-Yeon Park, Won-Jang Jeong
  • Heterocyclic compound and organic light-emitting device comprising same
    Patent number: 12415823
    Abstract: The present specification relates to a heterocyclic compound represented by Chemical Formula 1, and an organic light emitting device comprising the same.
    Type: Grant
    Filed: October 20, 2020
    Date of Patent: September 16, 2025
    Assignee: LT MATERIALS CO., LTD.
    Inventors: Gi-Back Lee, Yu-Jin Heo, Won-Jang Jeong
  • HETEROCYCLIC COMPOUND, ORGANIC LIGHT-EMITTING ELEMENT COMPRISING SAME, AND COMPOSITION FOR ORGANIC LAYER OF ORGANIC LIGHT-EMITTING ELEMENT
    Publication number: 20250255176
    Abstract: Provided is a heterocyclic compound, an organic light emitting device including the same, and a composition for an organic material layer of the organic light emitting device. The heterocyclic compound described herein may be used as a material for the organic material layer of the organic light emitting device. That is, the heterocyclic compound can serve as a light emitting material, a hole injection material, a hole transport material, an electron transport material, an electron injection material and the like in the organic light emitting device. In particular, the heterocyclic compound can be used as a material for a light emitting layer of an organic light emitting device.
    Type: Application
    Filed: April 21, 2025
    Publication date: August 7, 2025
    Inventors: Gi-Back LEE, Jun-Tae MO, Dong-Jun KIM, Yong-Woo KIM, Dae-Hyuk CHOI
  • ORGANIC LIGHT EMITTING DEVICE, COMPOSITION FOR ORGANIC MATERIAL LAYER OF ORGANIC LIGHT EMITTING DEVICE AND METHOD FOR MANUFACTURING ORGANIC LIGHT EMITTING DEVICE
    Publication number: 20250248303
    Abstract: Disclosed are an organic light emitting device including a heterocyclic compound represented by Chemical Formula A and a heterocyclic compound represented by the following Chemical Formula B, a composition for an organic material layer of the organic light emitting device, and a method for manufacturing the organic light emitting device. The organic light emitting device, the composition for an organic material layer of the organic light emitting device, and the method for manufacturing the organic light emitting device described in the present specification can reduce the driving voltage of the device, improve the light emitting efficiency, and improve the service life characteristics of the device.
    Type: Application
    Filed: January 15, 2025
    Publication date: July 31, 2025
    Applicant: LT MATERIALS CO., LTD.
    Inventors: Byeong-Gwan KIM, Gi-Back LEE, Jun-Tae MO, Dong-Jun KIM, Dae-Hyuk CHOI
  • HETEROCYCLIC COMPOUND, ORGANIC LIGHT-EMITTING DEVICE COMPRISING SAME, AND COMPOSITION COMPRISING SAME FOR FORMING ORGANIC LAYER
    Publication number: 20250221145
    Abstract: The present specification relates to a heterocyclic compound of Chemical Formula 1, an organic light emitting device including the same and a composition for forming an organic material layer.
    Type: Application
    Filed: March 14, 2023
    Publication date: July 3, 2025
    Applicant: LT MATERIALS CO., LTD.
    Inventors: Gi-Back LEE, Jun-Tae MO, Dong-Jun KIM
  • Heterocyclic compound and organic light emitting diode comprising same
    Patent number: 12338239
    Abstract: The present specification relates to a heterocyclic compound represented by Chemical Formula 1, and an organic light emitting device comprising the same.
    Type: Grant
    Filed: June 19, 2020
    Date of Patent: June 24, 2025
    Assignee: LT MATERIALS CO., LTD.
    Inventors: Gi-Back Lee, Hyun-Ju La, Won-Jang Jeong
  • HETEROCYCLIC COMPOUND, AND COMPOSITION FOR FORMING ORGANIC LIGHT-EMITTING ELEMENT AND ORGANIC MATERIAL LAYER COMPRISING SAME
    Publication number: 20250169356
    Abstract: The present specification relates to a heterocyclic compound of Chemical Formula 1, an organic light emitting device including the same and a composition for forming an organic material layer. When used in an organic light emitting device, the heterocyclic compound can lower the driving voltage of the device, improve the light emitting efficiency, and improve the service life characteristics of the device.
    Type: Application
    Filed: February 9, 2023
    Publication date: May 22, 2025
    Applicant: LT MATERIALS CO., LTD.
    Inventors: Gi-Back LEE, Jun-Tae MO, Dong-Jun KIM
  • CONDENSED POLYCYCLIC COMPOUND AND ORGANIC LIGHT-EMITTING DEVICE INCLUDING SAME
    Publication number: 20240268227
    Abstract: The present specification relates to a condensed polycyclic compound of Chemical Formula 1, and an organic light emitting device including same.
    Type: Application
    Filed: November 16, 2021
    Publication date: August 8, 2024
    Applicant: LT MATERIALS CO., LTD.
    Inventors: Gi-Back LEE, Jun-Tae MO, Dong-Jun KIM
  • HETEROCYCLIC COMPOUND AND ORGANIC LIGHT-EMITTING DEVICE COMPRISING SAME
    Publication number: 20240107788
    Abstract: The present specification relates to a heterocyclic compound represented by Chemical Formula 1 and an organic light emitting device including the same.
    Type: Application
    Filed: June 3, 2021
    Publication date: March 28, 2024
    Applicant: LT MATERIALS CO., LTD.
    Inventors: Gi-Back LEE, Seong-Jong PARK, Won-Jang JEONG, Dong-Jun KIM
  • HETEROCYCLIC COMPOUND AND ORGANIC LIGHT-EMITTING DEVICE COMPRISING SAME
    Publication number: 20240083887
    Abstract: The present specification relates to a heterocyclic compound represented by Chemical Formula 1 and an organic light emitting device including the same.
    Type: Application
    Filed: June 3, 2021
    Publication date: March 14, 2024
    Applicant: LT MATERIALS CO., LTD.
    Inventors: Gi-Back LEE, Ji-Un KIM, Won-Jang JEONG, Dong-Jun KIM
  • COMPOUND AND ORGANIC LIGHT-EMITTING DEVICE COMPRISING SAME
    Publication number: 20240025872
    Abstract: The present specification relates to a compound of Chemical Formula 1, and an organic light emitting device including the same.
    Type: Application
    Filed: October 22, 2021
    Publication date: January 25, 2024
    Applicant: LT MATERIALS CO., LTD.
    Inventors: Ji-Un KIM, Gi-Back LEE, Won-Jang JEONG, Dong-Jun KIM
  • COMPOUND AND ORGANIC LIGHT-EMITTING DEVICE COMPRISING SAME
    Publication number: 20230391740
    Abstract: The present specification relates to a compound of Chemical Formula 1, and an organic light emitting device including the same.
    Type: Application
    Filed: September 10, 2021
    Publication date: December 7, 2023
    Applicant: LT MATERIALS CO., LTD.
    Inventors: Gi-Back LEE, Yu-Jin HEO, Won-Jang JEONG, Dong-Jun KIM
  • HETEROCYCLIC COMPOUND AND ORGANIC LIGHT-EMITTING DEVICE COMPRISING SAME
    Publication number: 20230357127
    Abstract: The present specification relates to a heterocyclic compound represented by Chemical Formula 1 and an organic light emitting device including the same.
    Type: Application
    Filed: February 19, 2021
    Publication date: November 9, 2023
    Applicant: LT MATERIALS CO., LTD.
    Inventors: Gi-Back LEE, Nam-Jin LEE, Won-Jang JEONG, Dong-Jun KIM, Hyo-Kyun HAM
  • HETEROCYCLIC COMPOUND AND ORGANIC LIGHT-EMITTING ELEMENT COMPRISING SAME
    Publication number: 20230331689
    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: August 12, 2021
    Publication date: October 19, 2023
    Applicant: LT MATERIALS CO., LTD.
    Inventors: Nam-Jin LEE, Gi-Back LEE, Won-Jang JEONG, Dong-Jun KIM
  • COMPOUND AND ORGANIC LIGHT-EMITTING DEVICE INCLUDING SAME
    Publication number: 20230320201
    Abstract: The present specification relates to a compound represented by Chemical Formula 1, and an organic light emitting device including the same.
    Type: Application
    Filed: September 6, 2021
    Publication date: October 5, 2023
    Applicant: LT MATERIALS CO.,LTD.
    Inventors: Gi-Back LEE, Dong-Jin LEE, Won-Jang JEONG, Dong-Jun KIM
  • HETEROCYCLIC COMPOUND AND ORGANIC LIGHT-EMITTING DEVICE COMPRISING SAME
    Publication number: 20230284527
    Abstract: The present specification relates to a heterocyclic compound represented by Chemical Formula 1, and an organic light emitting device including the same.
    Type: Application
    Filed: July 29, 2021
    Publication date: September 7, 2023
    Applicant: LT MATERIALS CO., LTD.
    Inventors: Gi-Back LEE, Hyun-Ju LA, Won-Jang JEONG, Dong-Jun KIM
  • HETEROCYCLIC COMPOUND AND ORGANIC LIGHT-EMITTING DEVICE COMPRISING SAME
    Publication number: 20230263053
    Abstract: The present application provides a heterocyclic compound capable of significantly enhancing lifetime, efficiency, electrochemical stability and thermal stability of an organic light emitting device, and an organic light emitting device containing the heterocyclic compound in an organic material layer.
    Type: Application
    Filed: March 10, 2021
    Publication date: August 17, 2023
    Applicant: LT MATERIALS CO., LTD.
    Inventors: Gi-Back LEE, Hyun-Ju LA, Won-Jang JEONG, Dong-Jun KIM, Hyo-Kyun HAM
  • HETEROCYCLIC COMPOUND AND ORGANIC LIGHT-EMITTING DEVICE COMPRISING SAME
    Publication number: 20230056059
    Abstract: The present application provides a heterocyclic compound capable of significantly enhancing lifetime, efficiency, electrochemical stability and thermal stability of an organic light emitting device, and an organic light emitting device comprising the heterocyclic compound in an organic material layer.
    Type: Application
    Filed: December 9, 2020
    Publication date: February 23, 2023
    Applicant: LT MATERIALS CO., LTD.
    Inventors: Gi-Back LEE, Hyun-Ju LA, Won-Jang JEONG, Dong-Jun KIM