| 摘要 |
PROBLEM TO BE SOLVED: To provide an organic electroluminescent element small in the luminance distribution within an irradiation area.SOLUTION: The present organic electroluminescent element includes: a first electrode on a light extraction side; a second electrode disposed to face the first electrode; and a luminous layer held between the first electrode and the second electrode and having a plurality of maximum emission wavelengths. When a maximum emission wavelength at which the luminous layer has a maximum emission intensity is denoted asλ, a maximum emission wavelength longer thanλis denoted asλ, a wavelength at which reflectance is minimum is denoted asλ, the reflectance being a ratio between an amount of light of visible light vertically applied on a side of the second electrode from the outside via the first electrode and an amount of light reflected at the second electrode and emitted toward the outside from the first electrode,λ,λ, andλsatisfy an expression ofλ<λ<λ. |
