Π-CONJUGATED COMPOUND, ORGANIC ELECTROLUMINESCENCE ELEMENT MATERIAL, LIGHT-EMITTING THIN FILM, ORGANIC ELECTROLUMINESCENCE ELEMENT, DISPLAY DEVICE, AND ILLUMINATION DEVICE

摘要

The present invention provides a π-conjugated compound that increases light-emission efficiency without increasing light-emission wavelength. This π-conjugated compound is a compound having a structure indicated by general formula (1). (In general formula (1): D1 and D2 each independently indicate an electron-donating group D selected from the group consisting of an aryl group substituted by an electron-donating group, a substitutable electron-donating heterocyclic group, and a substitutable amino group; M1-M4 each independently indicate a nitrogen atom or -C-Z; at least one among M1-M4 is a nitrogen atom; and if one of M1-M4 is -C-Z, each Z independently indicates a hydrogen atom, a deuterium atom, or a substitutable group.)