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:
Sep. 27, 2022
Filed:
Nov. 19, 2019
Applicant:
Sfc Co., Ltd., Cheongju-si, KR;
Inventors:
SungHoon Joo, Cheongju-si, KR;
Ji-Hwan Kim, Cheongju-si, KR;
Byung-sun Yang, Cheongju-si, KR;
Hyeon Jun Jo, Cheongju-si, KR;
Sungeun Choi, Cheongju-si, KR;
Su-jin Kim, Cheongju-si, KR;
Assignee:
SFC CO., LTD., Cheongju-si, KR;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H01L 51/50 (2006.01); H01L 51/00 (2006.01);
U.S. Cl.
CPC ...
H01L 51/008 (2013.01); H01L 51/508 (2013.01); H01L 51/5024 (2013.01); H01L 51/5076 (2013.01); H01L 51/5092 (2013.01); H01L 51/5096 (2013.01);
Abstract
Disclosed are indolocarbazole polycyclic aromatic derivatives that can be employed in various organic layers of organic electroluminescent devices. The indolocarbazole derivatives have a boron-containing structure. Also disclosed are organic electroluminescent devices including the indolocarbazole derivatives. The organic electroluminescent devices are highly efficient and long lasting and have greatly improved luminous efficiency.