ORGANIC ELECTROLUMINESCENT DEVICE MATERIAL, ORGANIC ELECTROLUMINESCENT DEVICE, DISPLAY AND ILLUMINATING DEVICE

摘要

Disclosed is an organic EL device using an organic EL device material having controlled emission wavelength, high luminous efficiency and long emission life. Also disclosed are a display and an illuminating device. Specifically disclosed is an organic EL device material represented by the following general formula (1a). [In the formula (1a), A represents a cyclic group; B represents a cyclic group; and A is a group represented by the general formula (1b) below, or alternatively the compound represented by the general formula (1a) has a group represented by the general formula (1b) below asa substituent: (In the formula (1b) wherein X represents O, S or N-R<SUB>2</SUB> (wherein R<SUB>2</SUB> represents an alkyl group, an aryl group or a heteroaryl group); Z<SUB>1</SUB>, Z<SUB>2</SUB>, Z<SUB>3</SUB> and Z<SUB>4</SUB> represent N or -CR<SUB>4</SUB>= (wherein R<SUB>4</SUB> represents a hydrogen atom or a substituent), and one of them is N); X<SUB>1</SUB> and X<SUB>2</SUB> represent C, N or O; L<SUB>1</SUB> represents an atomic group forming a bidentate ligand together with X<SUB>1</SUB> and X<SUB>2</SUB>; m1 represents 1, 2 or 3, m2 represents 0, 1 or 2 and m1 + m2 is 2 or 3; and M<SUB>1</SUB> represents a group 8-10 metal of the periodic table.]