Patents Assigned to LT MATERIALS CO., LTD.
  • Heterocyclic compound and organic light emitting device comprising same
    Patent number: 12727378
    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 including the heterocyclic compound in an organic material layer.
    Type: Grant
    Filed: September 16, 2020
    Date of Patent: September 1, 2026
    Assignee: LT MATERIALS CO., LTD.
    Inventors: Yu-Jin Heo, Nam-Jin Lee, Won-Jang Jeong, Dong-Jun Kim
  • HETEROCYCLIC COMPOUND, ORGANIC LIGHT-EMITTING ELEMENT COMPRISING SAME, AND COMPOSITION FOR ORGANIC LAYER
    Publication number: 20260255871
    Abstract: The present invention relates to a heterocyclic compound represented by Chemical Formula 1, an organic light-emitting element comprising same, and a composition for an organic layer.
    Type: Application
    Filed: February 20, 2023
    Publication date: August 27, 2026
    Applicant: LT MATERIALS CO., LTD.
    Inventors: Seung Woo LEE, Yu Jin HEO, Jun Tae MO, Dong Jun KIM
  • Heterocyclic compound and organic light emitting device comprising same
    Patent number: 12673932
    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: August 31, 2020
    Date of Patent: July 7, 2026
    Assignee: LT MATERIALS CO., LTD.
    Inventors: Young-Jin Lee, Seong-Jong Park, Won-Jang Jeong, Dong-Jun Kim
  • Heterocyclic compound and organic light-emitting device comprising same
    Patent number: 12668583
    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: December 9, 2020
    Date of Patent: June 30, 2026
    Assignee: LT MATERIALS CO., LTD.
    Inventors: Gi-Back Lee, Hyun-Ju La, Won-Jang Jeong, Dong-Jun Kim
  • Composition for organic light emitting device and organic light emitting device comprising same
    Patent number: 12660500
    Abstract: The present specification provides a composition for an organic light emitting device and an organic light emitting device including the same.
    Type: Grant
    Filed: November 15, 2023
    Date of Patent: June 16, 2026
    Assignee: LT MATERIALS CO., LTD.
    Inventors: Young-Jin Lee, Jun-Tae Mo, Yu-Jin Heo, Yong-Hui Lee, Seung-Woo Lee, Dong-Jun Kim, Dae-Hyuk Choi
  • HETEROCYCLIC COMPOUND AND ORGANIC LIGHT EMITTING DEVICE COMPRISING THE SAME
    Publication number: 20260164917
    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: January 17, 2025
    Publication date: June 11, 2026
    Applicant: LT Materials Co., Ltd.
    Inventors: Hae Won JUNG, Nam Jin LEE, Won Jang JEONG, Dong Jun KIM, Dae Hyuk CHOI
  • Organometallic compound and organic electroluminescent device including the same
    Patent number: 12630575
    Abstract: Disclosed is an organometallic compound represented by a following Chemical Formula I, wherein the compound is a metal complex including a central coordination metal and a main ligand binding thereto, wherein the main ligand has a structure in which a fused ring is further introduced into 2-phenylquinoline. When the organometallic compound is used as dopant of a light-emitting layer of an organic electroluminescent device, rigidity is imparted to the organometallic compound molecule such that a full width at half maximum (FWHM) is narrow and thus color purity is improved. Further, a non-luminescent recombination process is reduced such that luminous efficiency and lifespan of the organic electroluminescent device are improved.
    Type: Grant
    Filed: May 26, 2022
    Date of Patent: May 19, 2026
    Assignees: LG DISPLAY CO., LTD., LT MATERIALS CO., LTD.
    Inventors: Jaemin Moon, Inbum Song, Dohan Kim, Sungjin Park, Yong Woo Kim, Seokhyeon Yu
  • Heterocyclic compound, organic light-emitting element comprising same, composition for organic layer of organic light-emitting element, and method for producing organic light-emitting element
    Patent number: 12617778
    Abstract: The present specification provides a heterocyclic compound represented by Chemical Formula 1, an organic light emitting device comprising the same, a composition for an organic material layer of an organic light emitting device, and a method for manufacturing an organic light emitting device.
    Type: Grant
    Filed: December 21, 2020
    Date of Patent: May 5, 2026
    Assignee: LT MATERIALS CO., LTD.
    Inventors: Yong-Hui Lee, Jun-Tae Mo, Dong-Jun Kim
  • HETEROCYCLIC COMPOUND AND ORGANIC LIGHT EMITTING DEVICE COMPRISING SAME
    Publication number: 20260123277
    Abstract: The present disclosure relates to a heterocyclic compound represented by Chemical Formula 1 and an organic light emitting device comprising the same.
    Type: Application
    Filed: February 23, 2023
    Publication date: April 30, 2026
    Applicant: LT MATERIALS CO., LTD.
    Inventors: Nam Jin LEE, Won Jang JEONG, Dong Jun KIM
  • Organic light-emitting element and composition for organic material layer thereof
    Patent number: 12598911
    Abstract: The present specification relates to an organic light emitting device including Compound (A) represented by Chemical Formula 1 and Compound (B) represented by any one of Chemical Formulae 2 to 4.
    Type: Grant
    Filed: December 18, 2020
    Date of Patent: April 7, 2026
    Assignee: LT MATERIALS CO., LTD.
    Inventors: Su-Jin Kwon, Yong-Hui Lee, Ji-Young Kim, Jun-Tae Mo, Dong-Jun Kim
  • Heterocyclic compound, organic light emitting device including the same and composition for organic layer of organic light emitting device
    Patent number: 12595257
    Abstract: The present disclosure relates to a heterocyclic compound being represented by Formula, an organic light emitting device including the heterocyclic compound and an organic light emitting display device including the organic light emitting device. The organic heterocyclic is included in an organic material layer of the organic light emitting device.
    Type: Grant
    Filed: April 14, 2022
    Date of Patent: April 7, 2026
    Assignees: LG DISPLAY CO., LTD., LT MATERIALS CO., LTD.
    Inventors: Sang-Beom Kim, Young-Jun Yu, Seon-Keun Yoo, Seung-Kwang Roh, Woo-Chul Choi, Ji-Ho Baek, Kyung-Hoon Lee, Ki-Min Lim, Dong-Jun Kim, Young-Seok No, Hyun-Joo Lee, Eui-Jeong Choi
  • HETEROCYCLIC COMPOUND AND ORGANIC LIGHT-EMITTING DEVICE INCLUDING SAME
    Publication number: 20260096277
    Abstract: The present specification relates to a heterocyclic compound and an organic light emitting device including the same.
    Type: Application
    Filed: July 11, 2023
    Publication date: April 2, 2026
    Applicant: LT MATERIALS CO., LTD.
    Inventors: Na-Yeong KIM, Su-Yeon KIM, Woo-Sam KIM, Won-Jang JEONG, Dong-Jun KIM, Dae-Hyuk CHOI
  • Organic light-emitting device, method for manufacturing same, and composition for organic material layer of organic light-emitting device
    Patent number: 12583843
    Abstract: The present specification relates to an organic light emitting device, a method for manufacturing the same, and a composition for an organic material layer.
    Type: Grant
    Filed: October 7, 2020
    Date of Patent: March 24, 2026
    Assignee: LT MATERIALS CO., LTD.
    Inventors: Seung-Gyu Yang, Su-Yeon Kim, Geon-Yu Park, Young-Seok No, Dong-Jun Kim
  • 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, organic light-emitting device comprising same, composition for organic material layer of organic light-emitting device, and method for manufacturing organic light-emitting device
    Patent number: 12565614
    Abstract: The present specification provides a heterocyclic compound represented by Chemical Formula 1, an organic light emitting device comprising the same, a composition for an organic material layer of an organic light emitting device, and a method for manufacturing an organic light emitting device.
    Type: Grant
    Filed: December 4, 2020
    Date of Patent: March 3, 2026
    Assignee: LT MATERIALS CO., LTD.
    Inventors: Ji-Young Kim, Jong-Su Lee, Jun-Tae Mo, Dong-Jun Kim
  • HETEROCYCLIC COMPOUND, ORGANIC LIGHT EMITTING DEVICE COMPRISING THE SAME AND COMPOSITION FOR ORGANIC MATERIAL LAYER
    Publication number: 20260060003
    Abstract: The present disclosure relates to a heterocyclic compound represented by Chemical Formula 1, an organic light emitting device including the same and a composition for an organic material layer. Each substituent of Chemical Formula 1 has the same definition as described in the description of the disclosure.
    Type: Application
    Filed: March 10, 2025
    Publication date: February 26, 2026
    Applicant: LT Materials Co., Ltd.
    Inventors: Seon Min PARK, Geon Yu PARK, Young Seok NO, Dong Jun KIM, Dae Hyuk CHOI
  • 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 element comprising same
    Patent number: 12534464
    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: March 26, 2018
    Date of Patent: January 27, 2026
    Assignee: LT MATERIALS CO., LTD.
    Inventors: Young Seok No, Jiyoon Byun, Dongjun Kim
  • HETEROCYCLIC COMPOUND AND ORGANIC LIGHT-EMITTING DEVICE COMPRISING SAME
    Publication number: 20260026256
    Abstract: The present disclosure relates to a heterocyclic compound represented by Chemical Formula 1 and an organic light emitting device including the same.
    Type: Application
    Filed: February 23, 2023
    Publication date: January 22, 2026
    Applicant: LT MATERIALS CO., LTD.
    Inventors: 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