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:
Nov. 12, 2013
Filed:
Mar. 23, 2005
Karsten Heuser, Erlangen, DE;
Arvid Hunze, Erlangen, DE;
Andreas Kanitz, Hoechstadt, DE;
Wolfgang Rogler, Moehrendorf, DE;
Debora Henseler, Erlangen, DE;
Karsten Heuser, Erlangen, DE;
Arvid Hunze, Erlangen, DE;
Andreas Kanitz, Hoechstadt, DE;
Wolfgang Rogler, Moehrendorf, DE;
Debora Henseler, Erlangen, DE;
Osram Opto Semiconductors GmbH, Regensburg, DE;
Abstract
The invention relates to an organic light-emitting diode (OLED) having an improved lifetime and improved transport of negative charge carriers. The organic light-emitting diode is based on an organic semiconductor material, in which the transport of negative charge carriers and stability with respect to reduction is achieved with triarylated Lewis acid units, in particular perarylated borane units. This leads to an improved lifetime of the emission layer which in turn increases the lifetime of the component and eliminates the need for correcting brightness during operation. Furthermore, the invention relates to organic light-emitting diodes in which the position of the emission zone in the emitter layer and the color of the emission can be influenced in a targeted manner through triarylated Lewis acids such as perarylated borane units.