WHITE LIGHT-EMITTING ORGANIC ELECTROLUMINESCENT ELEMENT AND WHITE LIGHT-EMITTING ORGANIC ELECTROLUMINESCENT PANEL

摘要

A white light-emitting organic electroluminescent element includes at least four kinds of light-emitting dopants with different emission peak wavelengths which are present between a cathode and an anode. The four kinds of light-emitting dopants include a light-emitting dopant “A”, a light-emitting dopant “B”, a light-emitting dopant “C”, and a light-emitting dopant “D” having their own peak wavelengths which are longer in this order. The white light-emitting organic electroluminescent element has an emission spectrum which satisfies relations of: (first average luminance for an angle in a range of 50° to 70°/first front luminance)(second average luminance for an angle in a range of 50° to 70°/second front luminance); and (third average luminance for an angle in a range of 50° to 70°/third front luminance)(fourth average luminance for an angle in a range of 50° to 70°/fourth front luminance).