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).

  • PLURALITY OF HOST MATERIALS, ORGANIC ELECTROLUMINESCENT COMPOUND, AND ORGANIC ELECTROLUMINESCENT DEVICE COMPRISING THE SAME
    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
  • Organic electroluminescent compound and organic electroluminescent device comprising the same
    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
  • Organic electroluminescent compound and organic electroluminescent device comprising the same
    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
  • Organic electroluminescent compound and organic electroluminescent device comprising the same
    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
  • PLURALITY OF HOST MATERIALS AND ORGANIC ELECTROLUMINESCENT DEVICE COMPRISING THE SAME
    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
  • Organic electroluminescent compound and organic electroluminescent device comprising the same
    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
  • Organic electroluminescent compound and organic electroluminescent device comprising the same
    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
  • PLURALITY OF HOST MATERIALS, ORGANIC ELECTROLUMINESCENT COMPOUND, AND ORGANIC ELECTROLUMINESCENT DEVICE COMPRISING THE SAME
    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
  • PLURALITY OF HOST MATERIALS, ORGANIC ELECTROLUMINESCENT COMPOUND, AND ORGANIC ELECTROLUMINESCENT DEVICE COMPRISING THE SAME
    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
  • ORGANIC ELECTROLUMINESCENT DEVICE AND ORGANIC ELECTROLUMINESCENT COMPOUND
    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
  • ORGANIC ELECTROLUMINESCENT COMPOUND AND ORGANIC ELECTROLUMINESCENT DEVICE COMPRISING THE SAME
    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
  • ORGANIC ELECTROLUMINESCENT COMPOUND AND ORGANIC ELECTROLUMINESCENT DEVICE COMPRISING THE SAME
    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
  • ORGANIC ELECTROLUMINESCENT COMPOUND, A PLURALITY OF HOST MATERIALS, AND ORGANIC ELECTROLUMINESCENT DEVICE COMPRISING THE SAME
    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
  • ORGANIC ELECTROLUMINESCENT COMPOUND AND ORGANIC ELECTROLUMINESCENT DEVICE COMPRISING THE SAME
    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
  • ORGANIC ELECTROLUMINESCENT COMPOUND AND ORGANIC ELECTROLUMINESCENT DEVICE COMPRISING THE SAME
    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
  • Organic electroluminescent compound and organic electroluminescent device comprising the same
    Patent number: 11605781
    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 high luminous efficiency and/or long lifespan properties can be provided compared to conventional organic electroluminescent devices.
    Type: Grant
    Filed: November 21, 2018
    Date of Patent: March 14, 2023
    Inventors: Hong-Se Oh, Tae-Jin Lee, Jeong-Eun Yang, Yeon-Gun Lee
  • Organic electroluminescent compound and organic electroluminescent device comprising the same
    Patent number: 11557728
    Abstract: The present disclosure relates to an organic electroluminescent compound and an organic electroluminescent device comprising the same. The organic electroluminescent device having improved driving voltage and/or current efficiency characteristics can be provided by comprising the organic electroluminescent compound according to the present disclosure.
    Type: Grant
    Filed: June 23, 2020
    Date of Patent: January 17, 2023
    Inventors: Chi-Sik Kim, Young-Gil Kim, Hong-Se Oh, Dong-Hyung Lee
  • ORGANIC ELECTROLUMINESCENT COMPOUND, A PLURALITY OF HOST MATERIALS, AND ORGANIC ELECTROLUMINESCENT DEVICE COMPRISING THE SAME
    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
  • ORGANIC ELECTROLUMINESCENT DEVICE
    Publication number: 20220231228
    Abstract: The present disclosure relates to an organic electroluminescent device comprising a light-emitting layer and a hole transport zone. By comprising a combination of the specific light-emitting layer and the specific hole transport zone according to the present disclosure, it is possible to produce an organic electroluminescent device having improved driving voltage, luminous efficiency, and/or lifespan characteristics.
    Type: Application
    Filed: October 14, 2021
    Publication date: July 21, 2022
    Inventors: Dong-Hyung LEE, Hyun-Woo KANG, Kyung-Hoon CHOI, Hong-Se OH, So-Mi PARK, Doo-Hyeon MOON, Du-Yong PARK, Hyun-Ju KANG
  • ORGANIC ELECTROLUMINESCENT COMPOUND AND ORGANIC ELECTROLUMINESCENT DEVICE COMPRISING THE SAME
    Publication number: 20220209137
    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: Application
    Filed: March 9, 2022
    Publication date: June 30, 2022
    Inventors: Hong-Se OH, Young-Kwang KIM, Doo-Hyeon MOON