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:
Mar. 14, 2023
Filed:
Sep. 21, 2018
Hodogaya Chemical Co., Ltd., Tokyo, JP;
Sfc Co., Ltd., Cheongju-si, KR;
Yuta Hirayama, Tokyo, JP;
Takeshi Yamamoto, Tokyo, JP;
Kazuyuki Suruga, Tokyo, JP;
Se-Jin Lee, Cheongju-si, KR;
Oun-Gyu Lee, Cheongju-si, KR;
Bong-Ki Shin, Cheongju-si, KR;
HODOGAYA CHEMICAL CO., LTD., Tokyo, JP;
SFC CO., LTD., Cheongju-si, KR;
Abstract
There is provided an organic electroluminescence device, including at least an anode, a hole transport layer, a light-emitting layer, an electron transport layer, and a cathode in the stated order, the organic electroluminescence device being characterized in that the hole transport layer contains an arylamine compound represented by formula (1), and the light-emitting layer contains a heterocyclic compound having a fused ring structure represented by formula (2) or a heterocyclic compound having a fused ring stricture represented by formula (3), wherein each of formulas (1), (2) and (3) are set forth in the specification.