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. 23, 2018
Filed:
Aug. 06, 2012
Koji Takaku, Kanagawa, JP;
Tetsu Kitamura, Kanagawa, JP;
Toru Watanabe, Kanagawa, JP;
Yosuke Yamamoto, Kanagawa, JP;
Kimiatsu Nomura, Kanagawa, JP;
Wataru Sotoyama, Kanagawa, JP;
Saki Takada, Kanagawa, JP;
Toshihiro Ise, Kanagawa, JP;
Koji Takaku, Kanagawa, JP;
Tetsu Kitamura, Kanagawa, JP;
Toru Watanabe, Kanagawa, JP;
Yosuke Yamamoto, Kanagawa, JP;
Kimiatsu Nomura, Kanagawa, JP;
Wataru Sotoyama, Kanagawa, JP;
Saki Takada, Kanagawa, JP;
Toshihiro Ise, Kanagawa, JP;
UDC Ireland Limited, Dublin, IE;
Abstract
An organic electroluminescent element including a substrate, a pair of electrodes including an anode and a cathode, disposed on the substrate, and at least one organic layer including a light emitting layer, disposed between the electrodes, in which a compound represented by the following formula (I) is contained in any layer of the at least one organic layer. The organic electroluminescent element has high luminous efficiency and a strong effect of improving the durability by driving aging: wherein X, A, A, A, A, and Rto Rare as defined herein.