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:
Feb. 10, 1998
Filed:
Jan. 19, 1996
Applicant:
Inventors:
Yuji Hamada, Kadoma, JP;
Takeshi Sano, Hirakata, JP;
Takanori Fujii, Sumoto, JP;
Kenichi Shibata, Hashimoto, JP;
Assignee:
Sanyo Electric Co., Ltd., Osaka, JP;
Primary Examiner:
Int. Cl.
CPC ...
B32B / ; H05B / ;
U.S. Cl.
CPC ...
428690 ; 428704 ; 428917 ; 428457 ; 313502 ; 313504 ; 313506 ;
Abstract
In an organic electroluminescent device according to the present invention, at least a carrier transporting layer and a luminescent layer which use an organic material are provided between a hole injection electrode and an electron injection electrode, and at least one of a compound having a pyrimidine ring as its center skeleton and a compound having a triazine ring as its center skeleton is used for a hole transporting material in a hole transporting layer in the carrier transporting layer and the organic material in the luminescent layer.