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. 26, 2013
Filed:
Sep. 26, 2008
Klaus Kahle, Ludwigshafen, DE;
Oliver Molt, Hirschberg, DE;
Nicolle Langer, Heppenheim, DE;
Christian Lennartz, Schifferstadt, DE;
Christian Schildknecht, Mannheim, DE;
Simon Nord, Roemerberg, DE;
Evelyn Fuchs, Mannheim, DE;
Jens Rudolph, Worms, DE;
Klaus Kahle, Ludwigshafen, DE;
Oliver Molt, Hirschberg, DE;
Nicolle Langer, Heppenheim, DE;
Christian Lennartz, Schifferstadt, DE;
Christian Schildknecht, Mannheim, DE;
Simon Nord, Roemerberg, DE;
Evelyn Fuchs, Mannheim, DE;
Jens Rudolph, Worms, DE;
BASF SE, Ludwigshafen, DE;
Abstract
The present invention relates to the use of (hetero)aryl-substituted acridine derivatives as matrix materials in a light-emitting layer of organic light-emitting diodes (OLEDs) and/or in a blocking layer for electrons in organic light-emitting diodes. The present invention further relates to a light-emitting layer which comprises at least one emitter material and at least one matrix material, wherein the matrix material used is at least one (hetero)aryl-substituted acridine derivative, and to an organic light-emitting diode which comprises at least one inventive light-emitting layer, to an organic light-emitting diode which comprises at least one acridine derivative of the formula (I) in a blocking layer for electrons, and to a device selected from stationary and mobile visual display units and illumination units which comprise at least one inventive organic light-emitting diode.