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. 22, 2003
Filed:
Jul. 06, 1998
Applicant:
Inventors:
Assignee:
TDK Corporation, Tokyo, JP;
Primary Examiner:
Int. Cl.
CPC ...
H05B 3/300 ;
U.S. Cl.
CPC ...
H05B 3/300 ;
Abstract
The object of the present invention is to provide an organic EL device capable of preventing current leakage and maintaining a long lifetime, a high luminance, a high efficiency and a high display quality. The object can be achieved by an organic EL element comprising a hole injecting electrode, an electron injecting electrode and at least one organic layer placed between these electrodes, wherein the organic layer has a thickness of at least 100 nm and an electron- or hole-mobility of 0.5-5×10 cm /V.s.