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. 06, 2010
Filed:
Mar. 04, 2005
Takayuki Fukumatsu, Kitakyushu, JP;
Hiroshi Miyazaki, Kitakyushu, JP;
Takayuki Fukumatsu, Kitakyushu, JP;
Hiroshi Miyazaki, Kitakyushu, JP;
Nippon Steel Chemical Co., Ltd., Tokyo, JP;
Abstract
Disclosed is an organic electroluminescent device (organic EL device) which has a simple structure and utilizes phosphorescence. The organic electroluminescent device is improved in luminescent efficiency and secured of sufficient driving stability. The organic electroluminescent device includes a luminescent layer or a plurality of organic compound thin film layers containing a luminescent layer formed between a pair of electrodes. The luminescent layer contains a compound composed of an Al complex of an oxyphenylbenzoxazole which is represented by the general formula (I) below as a host material, while containing an organic metal complex including Ru, Rh, Pd, Ag, Re, Os, Ir, Pt or Au as a guest material: where Rto Rindependently represent hydrogen atom, alkyl group, aromatic group or the like; n represents 2 or 4; and Z represents aromatic group, triarylsilyl group or the like when n is 2, while representing Al(III) when n is 4.