Patents by Inventor Tae-Jun Han

Tae-Jun 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).

  • Publication number: 20250133961
    Abstract: The present disclosure relates to an organic electroluminescent compound, a plurality of host materials, and an organic electroluminescent device comprising the same. By comprising the organic electroluminescent compound according to the present disclosure, an organic electroluminescent device having long lifespan properties could be prepared, and by comprising a plurality of host materials according to the present disclosure, an organic electroluminescent device having long lifespan properties could be prepared.
    Type: Application
    Filed: August 5, 2024
    Publication date: April 24, 2025
    Inventors: So-Young JUNG, Hyo-Jung LEE, Sang-Hee CHO, Young-Gil KIM, So-Mi PARK, Hee-Ryong KANG, Hyun-Ju KANG, BitNaRi KIM, Ji-Song JUN, YeJin JEON, Tae-Jun HAN
  • Publication number: 20250127041
    Abstract: The present disclosure relates to a compound, and an organic electroluminescent material and an organic electroluminescent device comprising the same. By comprising a compound and/or an organic electroluminescent material according to the present disclosure, an organic electroluminescent device having low driving voltage, and/or high luminous efficiency, and/or long lifespan characteristic, compared to the conventional organic electroluminescent device can be provided.
    Type: Application
    Filed: September 9, 2024
    Publication date: April 17, 2025
    Inventors: So-Young JUNG, Hyo-Jung LEE, Hyun-Ju KANG, Mi-Ran SEO, YeJin JEON, Tae-Jun HAN, Sang-Hee CHO, Dong-Gil KIM, So-Mi PARK, BitNaRi KIM
  • Publication number: 20240341110
    Abstract: The present disclosure relates to a plurality of host materials comprising at least one first host compound represented by the following Formula 1 and at least one second host compound represented by the following Formula 2, and an organic electroluminescent device comprising the same. By comprising a specific combination of host materials according to the present disclosure in the light-emitting layer, an organic electroluminescent device exhibiting low driving voltage and/or high luminous efficiency and/or long lifespan characteristics can be manufactured.
    Type: Application
    Filed: February 14, 2024
    Publication date: October 10, 2024
    Inventors: Bitnari KIM, Young-Jae KIM, Hee-Ryong KANG, Sang-Hee CHO, So-Young JUNG, Tae-Jun HAN, Mi-Ran SEO
  • Publication number: 20240324452
    Abstract: The present disclosure relates to a plurality of host materials comprising at least one first host compound and at least one second host compound, an organic electroluminescent compound, and an organic electroluminescent device comprising the same. It is possible to produce an organic electroluminescent device having low driving voltage, high luminous efficiency, and/or excellent lifetime properties, either by utilizing the plurality of host materials comprising a specific combination of host compounds, or by utilizing the organic electroluminescent compound represented by a specific Formula.
    Type: Application
    Filed: February 8, 2024
    Publication date: September 26, 2024
    Inventors: Yea-Mi SONG, Hyo-Soon PARK, Jeong-Eun YANG, Tae-Jun HAN, Mi-Ja LEE, Kyoung-Jin PARK, Doo-Hyeon MOON
  • Publication number: 20240298528
    Abstract: The present disclosure relates to a plurality of host materials comprising a first host material comprising a compound represented by formula 1 and a second host material comprising a compound represented by formula 2, and an organic electroluminescent device comprising the same. By comprising a specific combination of compounds as a host material, an organic electroluminescent device having a lower driving voltage and/or higher luminous efficiency and/or improved lifespan properties compared to a conventional organic electroluminescent device may be provided.
    Type: Application
    Filed: February 6, 2024
    Publication date: September 5, 2024
    Inventors: So-Young JUNG, Tae-Jun HAN, YeJin JEON, Dong-Gil KIM, Young-Jae KIM, Hyun-Ju KANG, Sang-Hee CHO, Bitnari KIM
  • Publication number: 20240276872
    Abstract: The present disclosure relates to a plurality of host materials comprising at least one first host compound represented by Formula 1 and at least one second host compound represented by Formula 3 different from the first host compound, and an organic electroluminescent device comprising the same. By comprising a specific combination of compounds according to the present disclosure as host materials, an organic electroluminescent device having low driving voltage, high luminous efficiency, and/or significantly improved lifespan characteristic, can be provided.
    Type: Application
    Filed: January 4, 2024
    Publication date: August 15, 2024
    Inventors: So-Young JUNG, Tae-Jun HAN, YeJin JEON, Seung-Hyun YOON, Young-Jae KIM, Hyun-Ju KANG, Bitnari KIM, Sang-Hee CHO
  • Patent number: 12049468
    Abstract: The present disclosure relates to a plurality of host materials comprising a compound represented by formula 1 and a compound represented by formula 2, and an organic electroluminescent device comprising the same. By comprising the plurality of host materials comprising a specific combination of compounds, it is possible to provide an organic electroluminescent device having long lifespan characteristics.
    Type: Grant
    Filed: May 9, 2019
    Date of Patent: July 30, 2024
    Assignee: Rohm and Haas Electronic Materials Korea Ltd.
    Inventors: Bitnari Kim, Su-Hyun Lee, Doo-Hyeon Moon, Hyo-Soon Park, Tae-Jun Han, Sang-Hee Cho
  • Publication number: 20240188432
    Abstract: The present disclosure relates to a plurality of host materials comprising a first host material having a compound represented by formula 1, and a second host material having a compound represented by formula 2, and an organic electroluminescent device comprising the same. By comprising a specific combination of compounds of the present disclosure as host materials, it is possible to provide an organic electroluminescent device having higher luminous efficiency and/or longer lifespan properties as compared with a conventional organic electroluminescent device.
    Type: Application
    Filed: February 1, 2024
    Publication date: June 6, 2024
    Inventors: Bitnari KIM, Su-Hyun LEE, Hyo-Soon PARK, Tae-Jun HAN, Jeong-Eun YANG, Sang-Hee CHO, Doo-Hyeon MOON
  • Publication number: 20240122069
    Abstract: The present disclosure relates to a plurality of host materials and organic electroluminescent devices comprising the same. The present disclosure may provide a plurality of host materials having a composition favorable to thermal denaturation due to a low deposition temperature, while improving hole properties and electronic properties of HOMO and LUMO, by comprising separate compounds represented by formulas 1 and 2 into a light-emitting layer. By comprising the plurality of host materials of the present disclosure, it is possible to provide an organic electroluminescent device having a lower driving voltage, higher luminous efficiency and/or longer lifetime.
    Type: Application
    Filed: November 10, 2023
    Publication date: April 11, 2024
    Inventors: Bitnari KIM, Su-Hyun LEE, So-Young JUNG, Hyo-Soon PARK, Tae-Jun HAN, Young-Jun CHO, Sang-Hee CHO
  • Publication number: 20240114778
    Abstract: The present disclosure relates to an organic electroluminescent compound, a plurality of host materials, and an organic electroluminescent device comprising the same. By comprising the compound according to the present disclosure or by comprising a specific combination of compounds according to the present disclosure as a plurality of host materials, it is possible to produce an organic electroluminescent device having improved driving voltage, luminous efficiency, and/or lifetime properties compared to the conventional organic electroluminescent devices.
    Type: Application
    Filed: August 14, 2023
    Publication date: April 4, 2024
    Inventors: So-Young JUNG, Hyo-Nim SHIN, Seung-Hyun YOON, Hyun-Ju KANG, Ye-Jin JEON, Tae-Jun HAN, Mi-Ja LEE, Dong-Gil KIM, Sang-Hee CHO
  • Publication number: 20240090321
    Abstract: The present disclosure relates to an organic electroluminescent compound and an organic electroluminescent device comprising the same. By comprising the compound according to the present disclosure, an organic electroluminescent device having improved driving voltage, power efficiency and/or lifetime characteristics compared to conventional organic electroluminescent devices can be provided.
    Type: Application
    Filed: July 17, 2023
    Publication date: March 14, 2024
    Inventors: So-Young JUNG, Hyun-Ju KANG, Sang-Hee CHO, Tae-Jun HAN, Hyo-Nim SHIN, Eun-Joung CHOI
  • Publication number: 20240057475
    Abstract: The present disclosure relates to a plurality of host materials comprising at least one first host compound and at least one second host compound and an organic electroluminescent device comprising the same. By comprising the specific combination of the compound according to the present disclosure as host materials, an organic electroluminescent device having low driving voltage, high luminous efficiency and long lifespan characteristics can be provided.
    Type: Application
    Filed: June 8, 2023
    Publication date: February 15, 2024
    Inventors: Hyun-Ju KANG, So-Young JUNG, Hyo-Jung LEE, Dong-Gil KIM, Tae-Jun HAN, Seung-Hyun YOON, Ye-Jin JEON, Sang-Hee CHO, Hyo-Nim SHIN, Young-Gil KIM
  • Patent number: 11856850
    Abstract: The present disclosure relates to a plurality of host materials and organic electroluminescent devices comprising the same. The present disclosure may provide a plurality of host materials having a composition favorable to thermal denaturation due to a low deposition temperature, while improving hole properties and electronic properties of HOMO and LUMO, by comprising separate compounds represented by formulas 1 and 2 into a light-emitting layer. By comprising the plurality of host materials of the present disclosure, it is possible to provide an organic electroluminescent device having a lower driving voltage, higher luminous efficiency and/or longer lifetime.
    Type: Grant
    Filed: September 21, 2018
    Date of Patent: December 26, 2023
    Inventors: Bitnari Kim, Su-Hyun Lee, So-Young Jung, Hyo-Soon Park, Tae-Jun Han, Young-Jun Cho, Sang-Hee Cho
  • Patent number: 11708328
    Abstract: The present disclosure relates to an organic electroluminescent compound and an organic electroluminescent device comprising the same. By comprising the organic electroluminescent compound of the present disclosure, it is possible to provide an organic electroluminescent device having low driving voltage and/or improved lifespan properties.
    Type: Grant
    Filed: August 23, 2018
    Date of Patent: July 25, 2023
    Inventors: Su-Hyun Lee, Hyo-Soon Park, Tae-Jun Han, Bitnari Kim
  • Publication number: 20230141435
    Abstract: The present disclosure relates to a plurality of host materials comprising at least one first host compound and at least one second host compound, and an organic electroluminescent device comprising the same. By comprising a specific combination of compounds according to the present disclosure as host materials, an organic electroluminescent device having a low driving voltage, high luminous efficiency, and long lifespan characteristics can be provided.
    Type: Application
    Filed: September 26, 2022
    Publication date: May 11, 2023
    Inventors: So-Young Jung, Jin-Man Kim, Jin-Ri Hong, Tae-Jun Han, Su-Hyun Lee, Sang-Hee Cho
  • Publication number: 20230130802
    Abstract: The present disclosure relates to an organic electroluminescent compound, an organic electroluminescent material and an organic electroluminescent device comprising the same, a plurality of host materials comprising at least one first host material and at least one second host material, and an organic electroluminescent device comprising the same. By comprising the compound according to the present disclosure as a single host material or as a plurality of host materials, it is possible to produce an organic electroluminescent device having improved driving voltage, luminous efficiency, and/or lifetime properties compared to the conventional organic electroluminescent devices.
    Type: Application
    Filed: July 29, 2022
    Publication date: April 27, 2023
    Inventors: Ji-Song JUN, Su-Hyun Lee, Tae-Jun Han, Dong-Hyung Lee, Sang-Hee Cho, Hong-Se Oh
  • Publication number: 20230100003
    Abstract: The present disclosure relates to an organic electroluminescent compound represented by formula 1 and an organic electroluminescent device comprising the same. By comprising the compounds according to the present disclosure, it is possible to provide an organic electroluminescent device having improved luminous efficiency and/or lifetime properties.
    Type: Application
    Filed: June 6, 2022
    Publication date: March 30, 2023
    Inventors: Ji-Song JUN, Hong-Se OH, Young-Kwang KIM, So-Mi PARK, Dong-Hyung LEE, Tae-Jun HAN
  • Publication number: 20230006147
    Abstract: The present disclosure relates to a plurality of host materials and an organic electroluminescent device comprising the same. By comprising the specific combination of compounds according to the present disclosure as a plurality of host materials according to the present disclosure, it is possible to provide an organic electroluminescent device having improved driving voltage, luminous efficiency, and/or lifetime property compared to the conventional organic electroluminescent devices.
    Type: Application
    Filed: May 26, 2022
    Publication date: January 5, 2023
    Inventors: Sang-Hee Cho, Bitnari Kim, Young-Jae Kim, So-Young Jung, Mi-Ja Lee, Su-Hyun Lee, Tae-Jun Han, HaeYeon Kim
  • Publication number: 20220263031
    Abstract: The present disclosure relates to an organic electroluminescent compound, a plurality of host materials, and an organic electroluminescent device comprising the same. By comprising an organic electroluminescent compound and/or a plurality of host materials according to the present disclosure, an organic electroluminescent device having low driving voltage and/or high luminous efficiency and/or long lifespan can be provided.
    Type: Application
    Filed: January 26, 2022
    Publication date: August 18, 2022
    Inventors: Ji-Won UM, Hong-Se OH, Jeong-Hwan JEON, Mi-Ran SEO, Sang-Hee CHO, Dong-Hyung LEE, Tae-Jun HAN
  • Publication number: 20220255017
    Abstract: The present disclosure relates to an organic electroluminescent compound and an organic electroluminescent device comprising the same. By comprising the organic electroluminescent compound according to the present disclosure, it is possible to provide an organic electroluminescent device having good thermal stability, low driving voltage, high luminous efficiency and/or improved lifetime properties.
    Type: Application
    Filed: June 16, 2020
    Publication date: August 11, 2022
    Inventors: Hyo-Jung LEE, Jin-Ri HONG, Hyo-Soon PARK, Sang-Hee CHO, Dong-Hyung LEE, Tae-Jun HAN, Ye-Jin JEON