Phosphorescent OLED and hole transporting materials for Phosphorescent OLEDs

摘要

The present invention is N,N,N',N'-tetraaryl-phenylene-3,5-diamine or N,N,N',N'-tetraaryl-1,1'-biphenyl-3,3' -New N,N,N useful as a hole-transport layer or a phosphorescent organic light emitting diode (OLED) comprising a hole-transport layer and an electron-blocking layer comprising a diamine matrix compound and a hole-transport and electron-blocking matrix in a phosphorescent OLED It relates to a',N'-tetraaryl substituted m-arylene diamine compound.