ORGANIC ELECTROLUMINESCENT ELEMENT MATERIAL, ORGANIC ELECTROLUMINESCENT ELEMENT, DISPLAY DEVICE AND LIGHTING DEVICE

摘要

PROBLEM TO BE SOLVED: To provide: an organic EL element material having regulated light-emission wavelengths, high light-emission efficiency and long light-emission life; an organic electroluminescent element produced by using the material; a lighting device; and a display device. SOLUTION: The organic EL element material contains a metal complex expressed by general formula (1) (wherein, Z1 represents a five or six-membered hydrocarbon ring or heterocycle; X1-L1-X2is a bidentate ligand: and M1 represents a group 8-10 metal). COPYRIGHT: (C)2009,JPO&INPIT