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:
Jul. 29, 2014
Filed:
May. 08, 2009
Noriko Yasukawa, Tokyo, JP;
Hiroshi Kita, Tokyo, JP;
Eisaku Katoh, Tokyo, JP;
Tatsuo Tanaka, Sagamihara, JP;
Shinya Otsu, Tokyo, JP;
Rie Katakura, Tokyo, JP;
Hidekane Ozeki, Tokyo, JP;
Hideo Taka, Tokyo, JP;
Noriko Yasukawa, Tokyo, JP;
Hiroshi Kita, Tokyo, JP;
Eisaku Katoh, Tokyo, JP;
Tatsuo Tanaka, Sagamihara, JP;
Shinya Otsu, Tokyo, JP;
Rie Katakura, Tokyo, JP;
Hidekane Ozeki, Tokyo, JP;
Hideo Taka, Tokyo, JP;
Abstract
Provided is an organic electroluminescent element comprising a substrate having thereon an anode, a cathode, and a plurality of organic layers sandwiched between the anode and the cathode, wherein the plurality of organic layers comprise: a light emitting layer containing a phosphorescence emitting compound; and an electron transport layer containing a compound represented by Formula (1),(Ar1)n1-Y1  Formula (1)wherein n1 is an integer of 1 or more; Yis a substituent when n1 is 1, and Yis a single bond or a linking group of n1 valences when n1 is two or more; Ar1 is a group represented by Formula (A), a plurality of Ar1 may be the same or different with each other when n1 is two or more; and the compound represented by Formula (1) contains at least two condensed aromatic heterocyclic rings each comprising 3 or more rings condensed with each other.