Patent application number | Description | Published |
20110198579 | Host material for light-emitting diodes - 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. | 08-18-2011 |
20130327995 | SPIROBIFLUORENE COMPOUND FOR LIGHT EMITTING DEVICES - A compound represented by Formula (I) or (II). | 12-12-2013 |
20130331582 | N-CYCLOALKYLALKYL TRISCARBAZOLES - The present invention relates to a novel triscarbazole compound comprising cyclo- or polycycloalkyl or aralkyl substituent, which can be represented by Formula (I). | 12-12-2013 |
20140001449 | N-PHENYL TRISCARBAZOLE | 01-02-2014 |
20140231713 | SPIROBIFLUORENE COMPOUNDS FOR LIGHT EMITTING DEVICES - Novel spirobifluorene compounds for light emitting devices where the spirobifluorene ring system comprises at least one acridine-type substituent. | 08-21-2014 |
20140231716 | SPIROBIFLUORENE COMPOUNDS FOR LIGHT EMITTING DEVICES - Novel spirobifluorene compounds for light emitting devices where the spirobifluorene ring system comprises at least one ligand in meta-position which is bound to the spirobifluorene through a heteroatom not being part of a ring system. | 08-21-2014 |
20140326979 | SPIROBIFLUORENE COMPOUNDS FOR LIGHT EMITTING DEVICES - Novel spirobifluorene compounds for light emitting devices where an SBF or Open SBF unit is substituted by a nitrogen atom, which is part of a ring system comprising two aromatic or heteroaromatic rings. | 11-06-2014 |