| Patent application number | Description | Published |
|---|
| 20080297033 | BLUE PHOSPHORESCENT IMIDAZOPHENANTHRIDINE MATERIALS - Compounds comprising phosphorescent metal complexes comprising cyclometallated imidazo[1,2-f]phenanthridine and diimidazo[1,2-a:1′,2′-c]quinazoline ligands, or isoelectronic or benzannulated analogs thereof, are described. Organic light emitting devices comprising these compounds are also described. | 12-04-2008 |
| 20090092854 | Complexes with tridentate ligands - The present invention relates to organic light emitting devices (OLEDs), and more specifically to phosphorescent organic materials used in such devices. More specifically, the present invention relates to emissive phosphorescent material which comprise at least one tridentate ligand bound to a metal center, wherein at least one of the bonds to the tridentate ligand is a carbon-metal bond. | 04-09-2009 |
| 20100148663 | Blue Emitter with High Efficiency Based on Imidazo[1,2-f] Phenanthridine Iridium Complexes - Imidazo[1,2-f]phenanthridine compounds are provided. The compounds have a twisted aryl moiety further substituted by alkyl having four or more atoms. The compounds may be used in organic light emitting devices, particularly as emissive dopants, providing devices with improved efficiency, stability, and manufacturing. In particular, the compounds provided herein may be used in blue devices having high efficiency. | 06-17-2010 |
| 20110057559 | PHOSPHORESCENT EMITTERS AND HOST MATERIALS WITH IMPROVED STABILITY - Devices containing a particular combination of organic compounds are provided. In particular, the devices contain twisted aryl compounds having extended conjugation (i.e., the twisted aryl is substituted with an additional aryl group) in combination with dibenzothiophene or dibenzofuran containing host materials. The organic light emitting devices may provide improved stability color, lifetime and manufacturing. Compounds containing a twisted aryl having extended conjugation are also provided. | 03-10-2011 |
| 20110073849 | METAL COMPLEXES OF CYCLOMETALLATED IMIDAZO[1,2-f ]PHENANTHRIDINE AND DIIMIDAZO[1,2-a:1',2'-c ]QUNIAZOLINE LIGANDS AND ISOELECTRONIC AND BENZANNULATED ANALOGS THEREOF - Compounds comprising phosphorescent metal complexes comprising cyclometallated imidazo[1,2-f]phenanthridine and diimidazo[1,2-a:1′,2′-c]quinazoline ligands, or isoelectronic or benzannulated analogs thereof, are described. Organic light emitting diode devices comprising these compounds are also described. | 03-31-2011 |
