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:
Feb. 20, 2018
Filed:
Jan. 20, 2014
Canon Kabushiki Kaisha, Tokyo, JP;
Takayuki Horiuchi, Tokyo, JP;
Tetsuya Kosuge, Yokohama, JP;
Hirokazu Miyashita, Tokyo, JP;
Yosuke Nishide, Kawasaki, JP;
Shigemoto Abe, Yokohama, JP;
Naoki Yamada, Inagi, JP;
Jun Kamatani, Tokyo, JP;
Akihito Saitoh, Gotemba, JP;
Kengo Kishino, Tokyo, JP;
Canon Kabushiki Kaisha, Tokyo, JP;
Abstract
Provided is an organic light-emitting element having high light-emitting efficiency and a long element lifetime. Specifically, provided is an organic light-emitting element, including: an anode; a cathode; and an organic compound layer placed between the anode and the cathode, in which: the organic compound layer includes an emission layer; the emission layer includes at least a host and a guest; the guest is an iridium complex of a specific structure; the host is a heterocycle-containing compound; and a content of the host is 50 wt % or more with reference to a total amount of constituent materials for the emission layer.