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:
Oct. 12, 2021
Filed:
Apr. 07, 2017
Novaled Gmbh, Dresden, DE;
Regina Luschtinetz, Dresden, DE;
Francois Cardinali, Dresden, DE;
Julien Frey, Dresden, DE;
Domagoj Pavicic, Dresden, DE;
Novaled GmbH, Dresden, DE;
Abstract
The invention relates to an Organic light emitting diode comprising an anode electrode, a cathode electrode, at least one emission layer and an organic semiconductor layer, wherein the organic semiconductor layer is arranged between the anode electrode and the cathode electrode and the organic semiconductor layer comprises an alkali organic complex and a compound of formula 1 wherein X is selected from O, S or Se; and Rand Rare independently selected from the group consisting of Cto Caryl group and Cto C8 heteroaryl group, wherein each of Rand Rmay independently be unsubstituted or substituted with at least one Cto Calkyl group or Cto Calkoxy group, preferably Cto Calkyl group or Cto Calkoxy group; and each R, R, R, and Rare independently selected from the group consisting of H, Cto Calkyl group or Cto Calkoxy group, preferably H, Cto Calkyl group or Cto Calkoxy group; a method for preparing the same and the compound of Formula 1 comprised therein.