Patents by Inventor Jeong-Eun Yang

Jeong-Eun Yang 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: 20240147845
    Abstract: The present disclosure relates to an organic electroluminescent device. The organic electroluminescent device of the present disclosure shows high luminous efficiency and good lifespan by comprising a specific combination of the plural kinds of host compounds and a specific hole transport compound.
    Type: Application
    Filed: December 6, 2023
    Publication date: May 2, 2024
    Inventors: Kyoung-Jin PARK, Tae-Jin LEE, Jae-Hoon SHIM, Yoo Jin DOH, Hee-Choon AHN, Young-Kwang KIM, Doo-Hyeon MOON, Jeong-Eun YANG, Su-Hyun LEE, Chi-Sik KIM, Ji-Song JUN
  • 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: 11917907
    Abstract: The present disclosure relates to an organic electroluminescent device. The organic electroluminescent device of the present disclosure shows high luminous efficiency and good lifespan by comprising a specific combination of the plural kinds of host compounds and a specific hole transport compound.
    Type: Grant
    Filed: November 22, 2021
    Date of Patent: February 27, 2024
    Assignee: Rohm and Haas Electronic Materials Korea Ltd.
    Inventors: Kyoung-Jin Park, Tae-Jin Lee, Jae-Hoon Shim, Yoo Jin Doh, Hee-Choon Ahn, Young-Kwang Kim, Doo-Hyeon Moon, Jeong-Eun Yang, Su-Hyun Lee, Chi-Sik Kim, Ji-Song Jun
  • 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
  • Publication number: 20230309387
    Abstract: The present disclosure relates to an organic electroluminescent material comprising an organic electroluminescent compound represented by formula 1, and an organic electroluminescent device comprising the same; and 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. An organic electroluminescent device with improved driving voltage and/or luminous efficiency can be provided by comprising the compound according to the present disclosure as an organic electroluminescent material or a plurality of host materials.
    Type: Application
    Filed: March 10, 2023
    Publication date: September 28, 2023
    Inventors: Jeong-Eun YANG, Hee-Ryong KANG, Jeong-Hwan JEON, Mi-Ja LEE, Sang-Hee CHO, Young-Jae KIM
  • 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
  • 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
  • Patent number: 11584719
    Abstract: The present disclosure relates to an organic electroluminescent compound and an organic electroluminescent device comprising the same. The organic electroluminescent device having a low driving voltage and/or a high luminous efficiency and/or a long lifespan can be provided, by comprising an organic electroluminescent compound according to the present disclosure.
    Type: Grant
    Filed: August 22, 2018
    Date of Patent: February 21, 2023
    Inventor: Jeong-Eun Yang
  • Publication number: 20220231229
    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 as a single host material, or 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.
    Type: Application
    Filed: December 14, 2021
    Publication date: July 21, 2022
    Inventors: Jeong-Eun Yang, Sang-Hee CHO, Hyo-Nim SHIN, Hyun KIM, Jeong-Hwan JEON, Jin-Ri HONG, Kyoung-Jin PARK
  • Patent number: 11387417
    Abstract: The present disclosure relates to an organic electroluminescent device comprising a light-emitting layer and a hole transport zone. By comprising a specific combination of a light-emitting layer and a hole transport zone, it is possible to provide an organic electroluminescent device having low driving voltage, high luminous efficiency and/or long lifespan properties.
    Type: Grant
    Filed: February 27, 2018
    Date of Patent: July 12, 2022
    Inventors: Tae-Jin Lee, Jeong-Eun Yang, Dong-Hyung Lee, Sang-Hee Cho
  • Publication number: 20220193716
    Abstract: A container with multiple dispensing tips is described. One dispensing end is a high-precision tip. The opposing dispenser is a broad applicator. The end user squeezes the bottle, and depending on which tip is open, the contents are dispensed through the appropriate end.
    Type: Application
    Filed: October 12, 2021
    Publication date: June 23, 2022
    Inventors: Jenny Jeong Eun Yang, Youlmae Lee
  • Patent number: 11302874
    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 excellent thermal stability, low driving voltage, high luminous efficiency, and/or improved lifespan properties.
    Type: Grant
    Filed: February 26, 2018
    Date of Patent: April 12, 2022
    Inventors: Jeong-Eun Yang, Hong-Se Oh, Hee-Ryong Kang, Young-Gil Kim, Sang-Hee Cho
  • Publication number: 20220102644
    Abstract: The present invention relates to an organic electroluminescent device. The organic electroluminescent device of the present invention shows high luminous efficiency and good lifespan by comprising a specific combination of the plural kinds of host compounds and a specific hole transport compound.
    Type: Application
    Filed: November 22, 2021
    Publication date: March 31, 2022
    Inventors: Kyoung-Jin PARK, Tae-Jin LEE, Jae-Hoon SHIM, Yoo Jin DOH, Hee-Choon AHN, Young-Kwang KIM, Doo-Hyeon MOON, Jeong-Eun YANG, Su-Hyun LEE, Chi-Sik KIM, Ji-Song JUN
  • Publication number: 20220102645
    Abstract: The present disclosure relates to a plurality of host materials comprising at least one of a first host compound represented by formula 1 and at least one of a second host compound represented by formula 2 and an organic electroluminescent device comprising the same. By comprising the host materials, an organic electroluminescent device having low driving voltage and/or a high luminous efficiency and/or long lifespan can be provided.
    Type: Application
    Filed: June 28, 2019
    Publication date: March 31, 2022
    Inventors: Bitnari Kim, Su-Hyun LEE, So-Young JUNG, Tae-Jun HAN, Hyo-Soon PARK, Sang-Hee CHO, Jeong-Eun YANG
  • Publication number: 20220102633
    Abstract: The present disclosure relates to an organic electroluminescent device. The organic electroluminescent device of the present disclosure shows high luminous efficiency and good lifespan by comprising a specific combination of the plural kinds of host compounds and a specific hole transport compound.
    Type: Application
    Filed: November 22, 2021
    Publication date: March 31, 2022
    Inventors: Kyoung-Jin PARK, Tae-Jin LEE, Jae-Hoon SHIM, Yoo Jin DOH, Hee-Choon AHN, Young-Kwang KIM, Doo-Hyeon MOON, Jeong-Eun YANG, Su-Hyun LEE, Chi-Sik KIM, Ji-Song JUN
  • Patent number: 11289662
    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 low driving voltage and/or high luminous efficiency can be provided. At the same time or selectively, an organic electroluminescent device having excellent lifespan characteristic and/or formable of a thin film of excellent quality can be provided.
    Type: Grant
    Filed: January 31, 2018
    Date of Patent: March 29, 2022
    Inventor: Jeong-Eun Yang
  • Publication number: 20210399231
    Abstract: The present disclosure relates to an organic electroluminescent device comprising a compound represented by formula 1, and can provide an organic electroluminescent device having a plurality of light-emitting layers, which is superior in driving voltage, luminous efficiency, external quantum efficiency, and/or color coordinate properties as compared to the conventional organic electroluminescent device.
    Type: Application
    Filed: September 3, 2019
    Publication date: December 23, 2021
    Inventors: Yoo-Jin DOH, Kyoung-Jin PARK, Chi-Sik KIM, Jeong-Eun YANG, Ji-Song JUN, Hyun KIM, Hyo-Jung LEE, Hyun-Ju KANG
  • Publication number: 20210367161
    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 low driving voltage and/or high luminous efficiency can be provided. At the same time or selectively, an organic electroluminescent device having excellent lifespan characteristic and/or formable of a thin film of excellent quality can be provided.
    Type: Application
    Filed: January 31, 2018
    Publication date: November 25, 2021
    Inventor: Jeong-Eun YANG
  • Publication number: 20210359216
    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, it is possible to provide an organic electroluminescent device having higher luminous efficiency and/or improved lifespan characteristics compared to conventional organic electroluminescent devices.
    Type: Application
    Filed: August 28, 2019
    Publication date: November 18, 2021
    Inventors: Bitnari KIM, Su-Hyun LEE, So-Young JUNG, Ji-Won UM, Jeong-Eun YANG, Sang-Hee CHO
  • Publication number: 20210336153
    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: May 13, 2019
    Publication date: October 28, 2021
    Inventors: BitNari KIM, Su-Hyun LEE, Hyo-Soon PARK, Tae-Jun HAN, Jeong-Eun YANG, Sang-Hee CHO, Doo-Hyeon MOON