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. 19, 2013
Filed:
Oct. 15, 2009
Roland Martin, St-Stevens-Woluwe, BE;
Veronique Mathieu, Wavre, BE;
Victor Sorokin, Cincinnati, OH (US);
Praveen Bachawala, Cincinnati, OH (US);
Wieslaw Adam Mazur, Mason, OH (US);
Jonathan Maunoury, Brussels, BE;
Roland Martin, St-Stevens-Woluwe, BE;
Veronique Mathieu, Wavre, BE;
Victor Sorokin, Cincinnati, OH (US);
Praveen Bachawala, Cincinnati, OH (US);
Wieslaw Adam Mazur, Mason, OH (US);
Jonathan Maunoury, Brussels, BE;
Solvay SA, Brussels, BE;
Abstract
The present invention relates to a host material comprising a compound having two carbazole moieties which is suitable for blue-emitting OLEDs. Surprisingly, it has been found that when appropriate substituents are present in the carbazole structure, the solubility of the compounds can be improved without any adverse effect on the OLED performance. The present invention further relates to the use of the host materials and to an organic light emitting device comprising the host material.