COUMARIN-BASED COMPOUND AND ORGANIC EL(ELECTROLUMINESCENT) DEVICE USING THE SAME

摘要

PROBLEM TO BE SOLVED: To provide a coumarin-based compound enabling red fluorescence emission high in both luminance and efficiency.;SOLUTION: The coumarin-based compound is represented by the general formula(1) (wherein, R₁ and R₂ are each H, a halogen atom, cyano or the like, wherein the two groups adjacent to each other may be bound to each other to form a ring, i.e. a conjugated and condensed aromatic ring, heterocyclic ring or composite ring; and X₁ to X₆ are each a halogen atom).;COPYRIGHT: (C)2008,JPO&INPIT