Patents by Inventor Chihyun RYOO

Chihyun RYOO 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).

  • Organic electroluminescence device and compound for organic electroluminescence device
    Patent number: 11844274
    Abstract: An organic electroluminescence device of an embodiment includes oppositely disposed first electrode and second electrode, and a plurality of organic layers disposed between the first electrode and the second electrode, wherein at least one among the organic layers includes a compound represented by Formula 1 below. Improved emission efficiency and color purity properties may be shown.
    Type: Grant
    Filed: December 19, 2019
    Date of Patent: December 12, 2023
    Assignees: Samsung Display Co., Ltd., Seoul National University R&DB Foundation
    Inventors: SooYoung Park, Sehun Kim, JiEon Kwon, Hyojeong Kim, ChiHyun Ryoo, Changhee Lee, Hyein Jeong, Jongseok Han
  • Heterocyclic compound and organic light-emitting device including the same
    Patent number: 10910566
    Abstract: Provided are a heterocyclic compound and an organic light-emitting device including the same, the heterocyclic compound being represented by Formula 1:
    Type: Grant
    Filed: February 9, 2018
    Date of Patent: February 2, 2021
    Assignees: Samsung Display Co., Ltd., Seoul National University R&DB Foundation
    Inventors: Sehun Kim, Sooyoung Park, Jieon Kwon, Dawoon Kim, Chihyun Ryoo, Hyein Jeong
  • Heterocyclic compound and organic light-emitting device including the same
    Patent number: 10807984
    Abstract: A heterocyclic compound and an organic light-emitting device including the heterocyclic compound, the heterocyclic compound being represented by Formula 1:
    Type: Grant
    Filed: January 12, 2018
    Date of Patent: October 20, 2020
    Assignees: Samsung Display Co., Ltd., Seoul National University R&DB Foundation
    Inventors: Sehun Kim, Sooyoung Park, Junghoon Yang, Chihyun Ryoo, Hyein Jeong, Illhun Cho
  • ORGANIC ELECTROLUMINESCENCE DEVICE AND COMPOUND FOR ORGANIC ELECTROLUMINESCENCE DEVICE
    Publication number: 20200321535
    Abstract: An organic electroluminescence device of an embodiment includes oppositely disposed first electrode and second electrode, and a plurality of organic layers disposed between the first electrode and the second electrode, wherein at least one among the organic layers includes a compound represented by Formula 1 below. Improved emission efficiency and color purity properties may be shown.
    Type: Application
    Filed: December 19, 2019
    Publication date: October 8, 2020
    Inventors: SooYoung PARK, SEHUN KIM, JiEon KWON, Hyojeong KIM, ChiHyun RYOO, Changhee LEE, HYEIN JEONG, Jongseok HAN
  • Polycyclic compound and organic light-emitting device including the same
    Patent number: 10593888
    Abstract: A polycyclic compound and an organic light-emitting device including the same are provided.
    Type: Grant
    Filed: September 11, 2017
    Date of Patent: March 17, 2020
    Assignees: SAMSUNG DISPLAY CO., LTD., SEOUL NATIONAL UNIVERSITY R&DB FOUNDATION
    Inventors: Sehun Kim, Sooyoung Park, Chihyun Ryoo, Illhun Cho, Junghoon Yang, Seyoung Jung, Hyein Jeong
  • POLYCYCLIC COMPOUND AND ORGANIC LIGHT-EMITTING DEVICE INCLUDING THE SAME
    Publication number: 20180240982
    Abstract: A polycyclic compound and an organic light-emitting device including the same are provided.
    Type: Application
    Filed: September 11, 2017
    Publication date: August 23, 2018
    Applicant: SEOUL NATIONAL UNIVERSITY R&DB FOUNDATION
    Inventors: SEHUN KIM, Sooyoung Park, Chihyun Ryoo, Illhun Cho, Junghoon Yang, Seyoung Jung, Hyein Jeong
  • HETEROCYCLIC COMPOUND AND ORGANIC LIGHT-EMITTING DEVICE INCLUDING THE SAME
    Publication number: 20180230156
    Abstract: A heterocyclic compound and an organic light-emitting device including the heterocyclic compound, the heterocyclic compound being represented by Formula 1:
    Type: Application
    Filed: January 12, 2018
    Publication date: August 16, 2018
    Inventors: Sehun KIM, Sooyoung PARK, Junghoon YANG, Chihyun RYOO, Hyein JEONG, Illhun CHO
  • HETEROCYCLIC COMPOUND AND ORGANIC LIGHT-EMITTING DEVICE INCLUDING THE SAME
    Publication number: 20180233675
    Abstract: Provided are a heterocyclic compound and an organic light-emitting device including the same, the heterocyclic compound being represented by Formula 1:
    Type: Application
    Filed: February 9, 2018
    Publication date: August 16, 2018
    Inventors: Sehun KIM, Sooyoung PARK, Jieon KWON, Dawoon KIM, Chihyun RYOO, Hyein JEONG