Patent · US Active

Host material for light-emitting diodes

US8586973B2 · kind B2 · utility

2Cited by

0References

20Claims

0Family size

Assignee

SOLVAY SA · BE

Inventors

Roland Martin · Hamburg, DE
Veronique Mathieu · Wavre, BE
Victor Dmitrievich Sorokin · Cincinnati, US
Praveen Bachawala · Allentown, US
Wieslaw Adam Mazur · Mason, US
Jonathan Maunoury · Brussels, BE

Key dates

Filing date	Oct 15, 2009
Grant date	Nov 19, 2013
Priority date	—
Expiry date	Jul 19, 2030

Classification

Technology area (CPC C)Chemistry; Metallurgy
CPC primaryC07D209/88
WIPO fieldOrganic fine chemistry
WIPO sectorChemistry

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.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.