PHOSPHORESCENT HOST COMPOUND AND ORGANIC ELECTROLUMINESCENT DEVICE COMPRISING SAME

摘要

This invention relates to an organic electroluminescence device including this light-emitting host material and a compound of formula (I) that, since the phosphorescent host material, and introducing the carbazole groups diaryl propane according to the present invention includes the organic electroluminescent device improves the electrical stability and luminous efficiency exhibits a high luminance and a high color purity as a blue light-emitting implemented organic It may be useful as a host material of a light emitting electroluminescent devices. ; wherein, ; A and B are each independently C _1-20 alkyl, C _1-20 alkoxy or C _4-6 substitution in the heterocyclic or unsubstituted C _6-20 aryl; ; R ₁ to R ₆ are each independently hydrogen, C _1-20 alkyl or C _1-20 alkyl or C _1-20 alkoxy unsubstituted C _6-20 is aryl.