Patents by Inventor Hong-Se Oh

Hong-Se Oh 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).

  • Patent number: 12102001
    Abstract: The present disclosure relates to an organic electroluminescent compound, an organic electroluminescent material comprising the same, and an organic electroluminescent device. By comprising the organic electroluminescent compound 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: Grant
    Filed: March 1, 2021
    Date of Patent: September 24, 2024
    Assignee: Rohm and Haas Electronic Materials Korea Ltd.
    Inventors: Young-Kwang Kim, Hong-Se Oh, Ji-Song Jun, Chi-Sik Kim, Kyoung-Jin Park, Doo-Hyeon Moon
  • Patent number: 12084446
    Abstract: The present disclosure relates to an organic electroluminescent compound, and an organic electroluminescent device comprising the same. It is possible to provide an organic electroluminescent device which can be deposited at a low deposition temperature and/or in which clogging is reduced.
    Type: Grant
    Filed: March 24, 2020
    Date of Patent: September 10, 2024
    Assignee: Rohm and Haas Electronic Materials Korea
    Inventors: Hong-Se Oh, Sung-Woo Jang, Joon-Hyung Kil, Seon-Jin Hwang, Seung-Ae Kim, Hee-Ryong Kang, Sang-Hee Cho, Hyo-Soon Park
  • Publication number: 20240292739
    Abstract: The present disclosure relates to an organic electroluminescent compound represented by formula 1 and an organic electroluminescent device comprising the same. By comprising an organic electroluminescent compound according to the present disclosure, it is possible to produce an organic electroluminescent device having improved current efficiency and/or lifetime properties.
    Type: Application
    Filed: January 19, 2024
    Publication date: August 29, 2024
    Inventors: Hyun KIM, Hyun-Woo KANG, Hong-Se OH, So-Mi PARK, Jin-Man KIM, Dong-Hyung LEE, Samuel KIM, Tae-Jin LEE
  • Publication number: 20240262782
    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 as an organic electroluminescent material, an organic electroluminescent device having long lifespan characteristics can be provided.
    Type: Application
    Filed: January 4, 2024
    Publication date: August 8, 2024
    Inventors: Jin-Man KIM, Seung-Hoon YOO, Hong-Se OH, Su-Hyun LEE, So-Mi PARK, Dong-Hyung LEE, Hyun-Woo KANG
  • Patent number: 12041845
    Abstract: The present disclosure relates to an organic electroluminescent compound comprising a ligand represented by formula 1, and an organic electroluminescent device comprising the same. The organic electroluminescent device having a luminescent efficiency higher than a conventional organic electroluminescent device can be provided by comprising the organic electroluminescent compound of the present disclosure.
    Type: Grant
    Filed: August 9, 2019
    Date of Patent: July 16, 2024
    Assignee: Rohm and Haas Electronic Materials Korea Ltd.
    Inventors: Hyun Kim, Jeong-Hwan Jeon, Seon-Jin Hwang, Ga-Won Lee, Hong-Se Oh
  • Publication number: 20240138260
    Abstract: The present disclosure relates to a plurality of host materials, an organic electroluminescent compound, and an organic electroluminescent device comprising the same. By comprising a specific combination of host compounds and/or an organic electroluminescent compound according to the present disclosure as an organic electroluminescent material, an organic electroluminescent device having low driving voltage and/or high luminous efficiency and/or long lifespan characteristics can be provided.
    Type: Application
    Filed: September 8, 2023
    Publication date: April 25, 2024
    Inventors: Ji-Song JUN, Hong-Se OH, Dong-Hyung LEE, Sang-Hee CHO, Du-Yong PARK, Hyun-Woo KANG, Jin-Man KIM
  • Patent number: 11963439
    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, it is possible to produce an organic electroluminescent device having improved driving voltage, power efficiency, and/or lifetime properties compared to the conventional organic electroluminescent devices.
    Type: Grant
    Filed: August 24, 2022
    Date of Patent: April 16, 2024
    Assignee: Rohm and Haas Electronic Materials Korea Ltd.
    Inventors: Eun-Joung Choi, Young-Kwang Kim, Su-Hyun Lee, So-Young Jung, YeJin Jeon, Hong-Se Oh, Dong-Hyung Lee, Jin-Man Kim, Hyun-Woo Kang, Mi-Ja Lee, Hee-Ryong Kang, Hyo-Nim Shin, Jeong-Hwan Jeon, Sang-Hee Cho
  • Patent number: 11926591
    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, an organic electroluminescent device having improved driving voltage, luminous efficiency, and/or lifespan characteristics can be provided.
    Type: Grant
    Filed: February 12, 2019
    Date of Patent: March 12, 2024
    Assignee: Rohm and Haas Electronic Materials Korea Ltd.
    Inventors: Hong-Se Oh, Jeong-Eun Yang, Tae-Jin Lee, Sang-Hee Cho
  • Patent number: 11844269
    Abstract: The present disclosure relates to an organic electroluminescent compound and an organic electroluminescent device comprising the same. By using the organic electroluminescent compound of the present disclosure, an organic electroluminescent device having low driving voltage, high luminous efficiency, and/or long lifespan properties can be provided.
    Type: Grant
    Filed: May 9, 2018
    Date of Patent: December 12, 2023
    Inventors: Hong-Se Oh, Tae-Jin Lee, Young-Kwang Kim, Doo-Hyeon Moon, Young-Mook Lim, Jin-Ri Hong
  • Publication number: 20230371374
    Abstract: The present disclosure relates to a plurality of host materials comprising a first host compound represented by formula 1 and a second host compound represented by formula 2 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 and/or high luminous efficiency and/or significantly improved lifespan characteristics can be provided.
    Type: Application
    Filed: May 1, 2023
    Publication date: November 16, 2023
    Inventors: Sang-Hee CHO, Young-Jae KIM, Hae-Yeon KIM, So-Young JUNG, Su-Hyun LEE, Mi-Ja LEE, So-Mi PARK, Young-Gil KIM, Hong-Se OH, Hyo-Soon PARK
  • Patent number: 11788000
    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 with improved driving voltage, luminous efficiency, lifespan properties and/or power efficiency.
    Type: Grant
    Filed: January 18, 2019
    Date of Patent: October 17, 2023
    Inventors: Ga-Won Lee, Sang-Hee Cho, Hee-Ryong Kang, Hong-Se Oh, Jeong-Eun Yang
  • Patent number: 11785846
    Abstract: The present disclosure relates to an organic electroluminescent compound and an organic electroluminescent device comprising the same. The organic electroluminescent compound of the present disclosure has a high glass transition temperature that can be used in a deposition process. Further, by comprising the organic electroluminescent compound of the present disclosure, an organic electroluminescent device having a low driving voltage, high luminous efficiency, and/or improved lifespan characteristics can be provided.
    Type: Grant
    Filed: March 9, 2022
    Date of Patent: October 10, 2023
    Inventors: Hong-Se Oh, Young-Kwang Kim, Doo-Hyeon Moon
  • Publication number: 20230320203
    Abstract: The present disclosure relates to a plurality of host materials, an organic electroluminescent compound, and an organic electroluminescent device comprising the same. By comprising a specific combination of compounds according to the present disclosure as a plurality of host materials, or by comprising the compound according to the present disclosure, an organic electroluminescent device having improved driving voltage, luminous efficiency and/or lifespan characteristics compared to conventional organic electroluminescent devices can be provided.
    Type: Application
    Filed: March 20, 2023
    Publication date: October 5, 2023
    Inventors: Hyo-Soon PARK, Jeong-Hwan JEON, Hee-Ryong KANG, Sang-Hee CHO, Dong-Hyung LEE, Jin-Man KIM, Hong-Se OH, Hyun-Woo KANG
  • Publication number: 20230320207
    Abstract: The present disclosure relates to a plurality of host materials, an organic electroluminescent compound, and an organic electroluminescent device comprising the same. By comprising a specific combination of compounds according to the present disclosure as a plurality of host materials, or by comprising the compound according to the present disclosure, 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 device.
    Type: Application
    Filed: December 5, 2022
    Publication date: October 5, 2023
    Inventors: Hyun KIM, Hong-Se OH, Mi-Ja LEE, Ji-Won UM, Kyoung-Jin PARK, So-Mi PARK, Hyun-Woo KANG, Sang-Hee CHO
  • Publication number: 20230284470
    Abstract: The present disclosure relates to an organic electroluminescent device and an organic electroluminescent compound. By comprising the compound according to the present disclosure or a specific combination of compounds according to the present disclosure, it is possible to produce an organic electroluminescent device having lower driving voltage, higher luminous efficiency and/or improved lifetime properties, compared to the conventional organic electroluminescent device.
    Type: Application
    Filed: February 22, 2023
    Publication date: September 7, 2023
    Inventors: Dong-Hyung LEE, Hong-Se OH, Jin-Man KIM, So-Mi PARK, Eun-Joung CHOI, Hae-Yeon KIM, Joon-Hyung KIL, Jeong-Hwan JEON, Young-Kwang KIM, Seung-Hoon YOO, Hyun-Woo KANG, Min-Jung CHANG
  • Publication number: 20230225197
    Abstract: The present disclosure relates to an organic electroluminescent compound and an organic electroluminescent device comprising the same. The organic electroluminescent device with improved driving voltage and/or power efficiency can be provided by using the organic electroluminescent compound according to the present disclosure.
    Type: Application
    Filed: March 16, 2023
    Publication date: July 13, 2023
    Inventors: Doo-Hyeon MOON, Hyo-Nim SHIN, Hong-Se OH, Dong-Hyung LEE, So-Mi PARK, Du-Yong PARK
  • Publication number: 20230157156
    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, it is possible to produce an organic electroluminescent device having improved driving voltage, power efficiency, and/or lifetime properties compared to the conventional organic electroluminescent devices.
    Type: Application
    Filed: August 24, 2022
    Publication date: May 18, 2023
    Inventors: Eun-Joung CHOI, Young-Kwang KIM, Su-Hyun LEE, So-Young JUNG, YeJin JEON, Hong-Se OH, Dong-Hyung LEE, Jin-Man KIM, Hyun-Woo KANG, Mi-Ja LEE, Hee-Ryong KANG, Hyo-Nim SHIN, Jeong-Hwan JEON, 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: 20230131195
    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 improved current efficiency and/or lifetime properties.
    Type: Application
    Filed: August 26, 2022
    Publication date: April 27, 2023
    Inventors: Young-Kwang KIM, Jeong-Eun YANG, Hong-Se OH, Hee-Ryong KANG, Joon-Hyung KIL, Eun-Joung CHOI, YeJin JEON, Dong-Hyung LEE, Hyun-Woo KANG
  • 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