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:
Nov. 04, 2014
Filed:
Mar. 15, 2013
Mitsubishi Chemical Corporation, Chiyoda-ku, JP;
Masayoshi Yabe, Kanagawa, JP;
Masayo Fugono, Kanagawa, JP;
Koichiro Iida, Kanagawa, JP;
Masako Takeuchi, Kanagawa, JP;
Tomoyuki Ogata, Kanagawa, JP;
Mitsubishi Chemical Corporation, Chiyoda-ku, JP;
Abstract
The present invention provides an organic electroluminescent device exhibiting a long life, a high luminance, and a high efficiency. An organic electroluminescent device comprising on a substrate an anode, a hole transport layer, an organic light-emitting layer, and a cathode, wherein the organic light-emitting layer contains an organic compound having a pyridine ring, a pyrazine ring, or a triazine ring as a partial structure and the hole transport layer contains a monoamine compound represented by the following formula (I): wherein Rto Rrepresent a hydrogen atom, an aryl group, or an alkyl group; Rto Rmay be the same or different from each other; and Rto Rmay further have an aryl group or an alkyl group as a substituent in the case where Rto Rare an aryl group or an alkyl group.