Patents by Inventor Hee-Ryong Kang

Hee-Ryong Kang 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: 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: 20240341178
    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 plurality of host materials and/or an 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 characteristics can be provided.
    Type: Application
    Filed: March 1, 2024
    Publication date: October 10, 2024
    Inventors: Hee-Ryong KANG, So-Young JUNG, Hyo-Soon PARK, Jeong-Eun YANG, Sang-Hee CHO, So-Mi PARK
  • 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: 20240228873
    Abstract: The present invention relates to an organic electroluminescent compound and an organic electroluminescent device comprising the same. The organic electroluminescent compound according to the present invention can be comprised in a light-emitting layer or an electron buffer layer, and is effective to produce an organic electroluminescent device having low driving voltage, excellent current and power efficiencies, and significantly improved operational lifespan.
    Type: Application
    Filed: February 20, 2024
    Publication date: July 11, 2024
    Inventors: Hee-Ryong KANG, Jin-Ri HONG, Bitnari KIM, Sang-Hee CHO
  • 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
  • Publication number: 20240065099
    Abstract: The present disclosure relates to an organic electroluminescent compound represented by formula 1, an organic electroluminescent material comprising the same and an organic electroluminescent device. By comprising an organic electroluminescent compound according to the present disclosure as a host material or an electron buffer material, or a specific combination of compounds as host materials, an organic electroluminescent device having improved drive voltage, luminous efficiency, and/or lifespan characteristics can be provided.
    Type: Application
    Filed: July 14, 2023
    Publication date: February 22, 2024
    Inventors: Hee-Ryong KANG, So-Young JUNG, Eun-Joung CHOI, Sang-Hee CHO, So-Mi PARK
  • Patent number: 11814401
    Abstract: A new luminescent material and an electroluminescent display device using the same are disclosed, in which the luminescent material includes a compound expressed by the following chemical formula 1 and may be used as a dopant of a light emitting layer of a green, yellow-green or red color:
    Type: Grant
    Filed: December 28, 2020
    Date of Patent: November 14, 2023
    Assignees: LG DISPLAY CO., LTD, ROHM AND HAAS ELECTRONIC MATERIALS KOREA LTD.
    Inventors: HeeJun Park, Jaemin Moon, Kusun Choung, Hee Ryong Kang, Hyun Kim, Ga Won Lee, Seung Hyun Yoon, Kyoung-Jin 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
  • 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: 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: 20230263051
    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 2 and an organic electroluminescent device comprising the same. By comprising the specific combination of compounds according to the present disclosure as the host materials, an organic electroluminescent device having low driving voltage, high luminous efficiency, and/or significantly improved lifespan characteristics can be provided.
    Type: Application
    Filed: February 2, 2023
    Publication date: August 17, 2023
    Inventors: So-Young JUNG, Su-Hyun LEE, Chi-Sik KIM, Sang-Hee CHO, Jin-Ri HONG, Hee-Ryong KANG, Young-Jae KIM
  • 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: 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: 20220290042
    Abstract: The present invention relates to an organic electroluminescent compound and an organic electroluminescent device comprising the same. The organic electroluminescent compound according to the present invention can be comprised in a light-emitting layer or an electron buffer layer, and is effective to produce an organic electroluminescent device having low driving voltage, excellent current and power efficiencies, and significantly improved operational lifespan.
    Type: Application
    Filed: May 24, 2022
    Publication date: September 15, 2022
    Inventors: Hee-Ryong Kang, Jin-Ri Hong, Bitnari Kim, Sang-Hee Cho
  • Publication number: 20220209139
    Abstract: The present disclosure relates to an organic metal compound, an organic light emitting diode and an organic light emitting device having the compound, in particular, to an organic metal compound having the following structure of Formula 1, an organic light emitting diode (OLED) and an organic light emitting device that includes the organic metal compound. The OLED and the organic light emitting device including the organic metal compound can improve their luminous efficiency, luminous color purity and lifespan.
    Type: Application
    Filed: October 6, 2021
    Publication date: June 30, 2022
    Applicants: LG Display Co., Ltd, Rohm and Haas Electronic Materials Korea Ltd.
    Inventors: Hee-Jun PARK, Ku-Sun CHOUNG, Yoo-Jeong JEONG, Sung-Jin PARK, Jae-Min MOON, Hee-Ryong KANG, Kyoung-Jin PARK, Hyun KIM, Ga-Won LEE, Seung-hyun YOON
  • Publication number: 20220209140
    Abstract: The present disclosure relates to an organic metal compound having the following structure of Formula 1, an organic light emitting diode (OLED) and an organic light emitting device that includes the organic metal compound. The OLED and the organic light emitting device including the organic metal compound can improve their luminous efficiency, luminous color purity and lifespan.
    Type: Application
    Filed: November 22, 2021
    Publication date: June 30, 2022
    Applicants: LG DISPLAY CO., LTD., ROHM AND HAAS ELECTRONIC MATERIALS KOREA LTD.
    Inventors: Hee-Jun PARK, Ku-Sun CHOUNG, Yoo-Jeong JEONG, Sung-Jin PARK, Jae-Min MOON, Hee-Ryong KANG, Kyoung-Jin PARK, Hyun KIM, Ga-Won LEE, Seung-Hyun YOON
  • Publication number: 20220199919
    Abstract: The present disclosure relates to an organometallic compound in Formula below and an organic light emitting diode and an organic light emitting device including the organometallic compound. The organometallic compound provides high emitting efficiency and longer lifespan, and the organic light emitting diode and the organic light emitting device have advantages in the emitting efficiency and the lifespan.
    Type: Application
    Filed: December 7, 2021
    Publication date: June 23, 2022
    Applicants: LG Display Co., Ltd., Rohm and Haas Electronic Materials Korea Ltd.
    Inventors: Ku-Sun Choung, Hee-Jun Park, Sung-Jin Park, Jae-Min Moon, Yoo-Jeong Jeong, Hee-Ryong Kang, Kyoung-Jin Park, Hyun Kim, Ga-Won Lee, Seung-Hyun Yoon
  • Publication number: 20220194973
    Abstract: The present disclosure relates to an organic metal compound having the following structure of Formula 1, an organic light emitting diode (OLED) and an organic light emitting device that includes the organic metal compound. The OLED and the organic light emitting device including the organic metal compound can improve their luminous efficiency, luminous color purity and lifespan.
    Type: Application
    Filed: October 12, 2021
    Publication date: June 23, 2022
    Applicants: LG Display Co., Ltd., Rohm and Haas Electronic Materials Korea Ltd.
    Inventors: Ku-Sun Choung, Hee-Jun Park, Hee-Ryong Kang, Kyoung-Jin Park, Hyun Kim, Ga-Won Lee, Seung-hyun Yoon
  • Publication number: 20220181558
    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 high luminous efficiency and/or improved lifespan properties, compared to conventional organic electroluminescent devices.
    Type: Application
    Filed: April 9, 2020
    Publication date: June 9, 2022
    Inventors: Ji-Song JUN, Hee-Ryong KANG, Chi-Slk KIM, Kyoung-Jin PARK, Jin-Man KIM, Seurng-Hyun YOON
  • Publication number: 20220162210
    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: Application
    Filed: March 24, 2020
    Publication date: May 26, 2022
    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