Patents by Inventor Seurng-Hyun YOON

Seurng-Hyun YOON 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).

  • A PLURALITY OF HOST MATERIALS AND ORGANIC ELECTROLUMINESCENT DEVICE COMPRISING THE SAME
    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