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:
Jun. 07, 2016
Filed:
May. 16, 2008
Akira Takeda, Kanagawa, JP;
Akira Takeda, Kanagawa, JP;
UDC Ireland Limited, Dublin, IE;
Abstract
An organic electroluminescent device includes a pair of electrodes; and an organic layer between the pair of electrodes, which includes a light-emitting layer, wherein the organic layer contains a compound represented by the following formula (I); and the light-emitting layer contains a iridium complex phosphorescent material: wherein R, R, R, R, R, R, Rand Reach represents a hydrogen atom or a substituent, and contiguous substituents of Rto Rmay be bonded to each other to form a condensed ring; Rrepresents an alkyl group, an alkenyl group, an aryl group, a hetero-aryl group, or a silyl group, and each of which group may be substituted with a substituent; and at least one of Rto Rrepresents a deuterium atom or a substituent containing a deuterium atom.