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. 02, 2002
Filed:
Mar. 13, 2000
Applicant:
Inventors:
Nu Yu, Knoxville, TN (US);
Hubert Spreitzer, Frankfurt, DE;
Hermann Schenk, Wiesbaden, DE;
Willi Kreuder, Mainz, DE;
Heinrich Becker, Glashütten, DE;
Assignee:
Ayentis Research & Technologies GmbH & Co KG, Frankfurt, DE;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H05B 3/326 ;
U.S. Cl.
CPC ...
H05B 3/326 ;
Abstract
An electroluminescent device, comprising at least one organic light emitting layer ( ) sandwiched between two electrode layers ( ), wherein the ratio r of the sheet resistances of the bottom electrode layer ( ) and the top electrode layer ( ) is <=r<=