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 |
20090167162 | DIBENZOTHIOPHENE-CONTAINING MATERIALS IN PHOSPHORESCENT LIGHT EMITTING DIODES - A new class of dibenzothiophene and/or dibenzofuran-containing compounds are provided. The new compounds may be useful in organic light emitting devices, particularly as the host of an emissive layer having a host and an emissive dopant, or as a material in an enhancement layer. | 07-02-2009 |
20100090591 | PHOSPHORESCENT MATERIALS - Phosphorescent materials and devices having high efficiency and stability, narrow spectrum, and improved processibility. | 04-15-2010 |
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 |
20120012829 | DIBENZOTHIOPHENE-CONTAINING MATERIALS IN PHOSPHORESCENT LIGHT EMITTING DIODES - A new class of dibenzothiophene and/or dibenzofuran-containing compounds are provided. The new compounds may be useful in organic light emitting devices, particularly as the host of an emissive layer having a host and an emissive dopant, or as a material in an enhancement layer. | 01-19-2012 |
20120061654 | METAL COMPLEX COMPRISING NOVEL LIGAND STRUCTURES - Compounds comprising a metal complex having novel ligands are provided. In particular, the compound is an iridium complex comprising novel aza DBX ligands. The compounds may be used in organic light emitting devices, particularly as emitting dopants, providing improved efficiency, low operating voltage, and long lifetime. | 03-15-2012 |
20120223634 | NOVEL TETRADENTATE PLATINUM COMPLEXES - Novel phosphorescent tetradentate platinum (II) compounds comprising a twisted aryl group are provided. Also provided are novel phosphorescent tetradentate platinum (II) compounds comprising an imidazo[1,2-f]phenanthridine moiety. The compounds may be used in organic light emitting devices to provide improved device efficiency, line shape and lifetime. | 09-06-2012 |
20130105766 | Method For Removing Halogens From An Aromatic Compound | 05-02-2013 |
20130172561 | SYNTHESIS OF CYCLOMETALLATED PLATINUM(II) COMPLEXES - A single-step method of making tetradentate platinum or palladium complexes is disclosed. The method advantageously allows the formation of a platinum or palladium complex in a single step, even with sterically hindered ligands, without the use of highly reactive intermediates. The compounds made by the disclosed method are useful in OLED applications. | 07-04-2013 |
20140042413 | PHOSPHORESCENT EMITTERS AND HOST MATERIALS WITH IMPROVED STABILITY - Iridium complexes with ligands containing twisted aryl groups having extended conjugation (i.e., the twisted aryl is substituted with an additional aryl group) and organic light emitting devices including the same are disclosed. The iridium complexes can be used in organic light emitting devices may provide improved stability color, lifetime and manufacturing. | 02-13-2014 |
20140319504 | ORGANIC ELECTROLUMINESCENT MATERIALS AND DEVICES - 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. | 10-30-2014 |
20150014649 | Organic Light Emitting Diode Materials - The present invention relates to novel organic compounds containing a triphenylene and a carbazole. The compounds are useful for organic light-emitting diodes. The compounds are also useful for charge-transport and charge-blocking layers, and as hosts in the light-emissive layer for organic light emitting devices (OLEDs). | 01-15-2015 |
20150028323 | ORGANIC ELECTROLUMINESCENT MATERIALS AND DEVICES - Novel phosphorescent tetradentate platinum (II) compounds comprising a twisted aryl group are provided. Also provided are novel phosphorescent tetradentate platinum (II) compounds comprising an imidazo[1,2-f]phenanthridine moiety. The compounds may be used in organic light emitting devices to provide improved device efficiency, line shape and lifetime. | 01-29-2015 |