The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jan. 03, 2023
Filed:
Oct. 09, 2019
Samsung Display Co., Ltd., Yongin-si, KR;
Kyushu University, National University Corporation, Fukuoka, JP;
Yuuki Miyazaki, Yokohama, JP;
Yoshimasa Fujita, Yokohama, JP;
Kyohei Matsuo, Fukuoka, JP;
Takuma Yasuda, Fukuoka, JP;
Samsung Display Co., Ltd., Yongin-si, KR;
Kyushu University, National University Corporation, Fukuoka, JP;
Abstract
An organic electroluminescence device in which a polycyclic compound including an electron donor and an electron acceptor is included in an emission layer is provided. The electron donor contains an acridine derivative or a dibenzo-azasiline derivative, and the electron acceptor contains B as a ring-forming atom, O or S directly bonded to B, and a heterocyclic group in which three or five hexagonal rings are condensed. Accordingly, an organic electroluminescence device having high efficiency may be achieved.