Patents by Inventor Nam Jin Lee

Nam Jin 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).

  • IMAGE SENSING DEVICE USING ADAPTIVELY ADJUSTED PRE-CHARGE CURRENT
    Publication number: 20240129648
    Abstract: An image sensing device includes: a control circuit coupled between an output terminal of a pixel signal and a high voltage terminal, and configured to generate a control voltage corresponding to a voltage level of the pixel signal; and a current supplying circuit coupled between the output terminal and the high voltage terminal, and configured to supply a pre-charge current, which is configured to be adaptively adjusted according to the voltage level of the pixel signal, to the output terminal based on the control voltage.
    Type: Application
    Filed: December 21, 2023
    Publication date: April 18, 2024
    Inventors: Yu Jin PARK, Nam Ryeol KIM, Kang Bong SEO, Jeong Eun SONG, Jung Soon SHIN, Seung Hwan LEE
  • MULTI-COMPONENT HOST MATERIAL AND AN ORGANIC ELECTROLUMINESCENCE DEVICE COMPRISING THE SAME
    Publication number: 20240090328
    Abstract: The present invention relates to a multi-component host material and an organic electroluminescent device comprising the same. By comprising a specific combination of the multi-component host compounds, the organic electroluminescent device according to the present invention can provide high luminous efficiency and excellent lifespan characteristics.
    Type: Application
    Filed: October 26, 2023
    Publication date: March 14, 2024
    Inventors: Hee-Choon AHN, Young-Kwang KIM, Su-Hyun LEE, Ji-Song JUN, Seon-Woo LEE, Chi-Sik KIM, Kyoung-Jin PARK, Nam-Kyun KIM, Kyung-Hoon CHOI, Jae-Hoon SHIM, Young-Jun CHO, Kyung-Joo LEE
  • HETEROCYCLIC COMPOUND, ORGANIC LIGHT-EMITTING DEVICE COMPRISING SAME, MANUFACTURING METHOD THEREFOR, AND COMPOSITION FOR ORGANIC LAYER
    Publication number: 20240023432
    Abstract: The present specification relates to a heterocyclic compound represented by Formula 1, an organic light emitting device comprising the same, a manufacturing method thereof, and a composition for an organic layer.
    Type: Application
    Filed: November 5, 2021
    Publication date: January 18, 2024
    Applicant: LT MATERIALS CO., LTD.
    Inventors: Seong Jong PARK, Nam Jin LEE, Won Jang JEONG, Dong Jun KIM
  • HETEROCYCLIC COMPOUND, ORGANIC LIGHT-EMITTING DEVICE COMPRISING SAME, MANUFACTURING METHOD THEREFOR, AND COMPOSITION FOR ORGANIC LAYER
    Publication number: 20240008360
    Abstract: The present specification relates to a heterocyclic compound represented by Chemical Formula 1, an organic light emitting device comprising the same, a method for manufacturing the same, and a composition for an organic material layer.
    Type: Application
    Filed: March 15, 2022
    Publication date: January 4, 2024
    Applicant: LT MATERIALS CO., LTD.
    Inventors: Nam Jin LEE, GWANG IL DONG, Won Jang JEONG, Dong Jun KIM
  • HETEROCYCLIC COMPOUND, ORGANIC ELECTROLUMINESCENT DEVICE INCLUDING SAME, AND COMPOSITION FOR ORGANIC MATERIAL LAYER
    Publication number: 20230406862
    Abstract: The present specification relates to a heterocyclic compound represented by Formula 1, an organic light-emitting device comprising the same, and a composition for an organic layer.
    Type: Application
    Filed: November 12, 2021
    Publication date: December 21, 2023
    Applicant: LT MATERIALS CO., LTD.
    Inventors: Nam Jin LEE, Won Jang JEONG, Yu Jin HEO, 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
  • Hetero-cyclic compound and organic light emitting device using the same
    Patent number: 11812623
    Abstract: The present application provides a hetero-cyclic 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 hetero-cyclic compound in an organic material layer.
    Type: Grant
    Filed: June 23, 2020
    Date of Patent: November 7, 2023
    Assignee: LT MATERIALS CO., LTD.
    Inventors: Ji-Un Kim, Yu-Jun Jung, Nam-Jin Lee, Won-Jang Jeong, Jun-Tae Mo
  • 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
  • HETEROCYCLIC COMPOUND AND ORGANIC LIGHT-EMITTING DEVICE USING SAME
    Publication number: 20230263050
    Abstract: The present application provides a hetero-cyclic 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 hetero-cyclic compound in an organic material layer.
    Type: Application
    Filed: June 24, 2021
    Publication date: August 17, 2023
    Applicant: LT MATERIALS CO., LTD.
    Inventors: Nam-Jin LEE, Ji-Yeon PARK, Yu-Jin HEO, Won-Jang JEONG, Dong-Jun KIM
  • HETEROCYCLIC COMPOUND AND ORGANIC LIGHT-EMITTING DEVICE COMPRISING SAME
    Publication number: 20230240134
    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: June 15, 2021
    Publication date: July 27, 2023
    Applicant: LT MATERIALS CO., LTD.
    Inventors: Ji-Yeon PARK, Nam-Jin LEE, Won-Jang JEONG, Dong-Jun KIM
  • HETEROCYCLIC COMPOUND AND ORGANIC LIGHT-EMITTING DEVICE COMPRISING SAME
    Publication number: 20230131749
    Abstract: The present specification provides a heterocyclic compound represented by Chemical Formula 1, and an organic light emitting device including the same.
    Type: Application
    Filed: April 2, 2021
    Publication date: April 27, 2023
    Applicant: LT MATERIALS CO., LTD.
    Inventors: Won-Jang JEONG, Nam-Jin LEE, Hyun-Ju LA, Dong-Jun KIM
  • HETEROCYCLIC COMPOUND AND ORGANIC LIGHT EMITTING DEVICE USING SAME
    Publication number: 20230127942
    Abstract: Disclosed are a heterocyclic compound which may significantly improve a service life, efficiency, electrochemical stability, and thermal stability of an organic light emitting device, and an organic light emitting device in which the heterocyclic compound is contained in an organic material layer.
    Type: Application
    Filed: August 18, 2022
    Publication date: April 27, 2023
    Applicant: LT MATERIALS CO., LTD.
    Inventors: Ji-Un KIM, Nam-Jin LEE, Won-Jang JEONG, Dong-Jun KIM
  • HETEROCYCLIC COMPOUND AND ORGANIC LIGHT-EMITTING DEVICE COMPRISING SAME
    Publication number: 20230023238
    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: November 27, 2020
    Publication date: January 26, 2023
    Applicant: 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: 11563185
    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: December 24, 2018
    Date of Patent: January 24, 2023
    Assignee: LT MATERIALS CO., LTD.
    Inventors: Nam-Jin Lee, Min-Ji Park, Won-Jang Jeong, Jin-Seok Choi, Dae-Hyuk Choi, Joo-Dong Lee
  • HETEROCYCLIC COMPOUND AND ORGANIC LIGHT EMITTING DEVICE COMPRISING SAME
    Publication number: 20220393108
    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: Application
    Filed: September 16, 2020
    Publication date: December 8, 2022
    Applicant: LT MATERIALS CO., LTD.
    Inventors: Yu-Jin HEO, Nam-Jin LEE, Won-Jang JEONG, Dong-Jun KIM
  • HETEROCYCLIC COMPOUND AND ORGANIC LIGHT-EMITTING DEVICE COMPRISING SAME
    Publication number: 20220246863
    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: August 14, 2020
    Publication date: August 4, 2022
    Applicant: LT MATERIALS CO., LTD.
    Inventors: Nam-Jin LEE, Yu-Jun JEONG, Won-Jang JEONG, Jun-Tae MO, Dong-Jun KIM
  • HETEROCYCLIC COMPOUND AND ORGANIC LIGHT-EMITTING DEVICE COMPRISING SAME
    Publication number: 20220213120
    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 20, 2020
    Publication date: July 7, 2022
    Applicant: LT MATERIALS CO., LTD.
    Inventors: Nam-Jin LEE, Yu-Jin HEO, Won-Jang JEONG, Dong-Jun KIM
  • HETEROCYCLIC COMPOUND AND ORGANIC LIGHT-EMITTING DEVICE COMPRISING SAME
    Publication number: 20220169659
    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 1, 2020
    Publication date: June 2, 2022
    Applicant: LT MATERIALS CO., LTD.
    Inventors: Nam-Jin LEE, Yu-Jin HEO, Won-Jang JEONG, Dong-Jun KIM
  • HETEROCYCLIC COMPOUND AND ORGANIC LIGHT-EMITTING DEVICE COMPRISING SAME
    Publication number: 20220144858
    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: July 21, 2020
    Publication date: May 12, 2022
    Applicant: LT MATERIALS CO., LTD.
    Inventors: Won-Jang JEONG, Seong-Jong PARK, Dong-Jun KIM, Nam-Jin LEE
  • HETEROCYCLIC COMPOUND AND ORGANIC LIGHT EMITTING DEVICE COMPRISING SAME
    Publication number: 20220123225
    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: November 12, 2019
    Publication date: April 21, 2022
    Applicant: LT MATERIALS CO., LTD.
    Inventors: Nam-Jin LEE, Young-Jin LEE, Won-Jang JEONG