| abstract |
An object of the present invention is to provide a high brightness organic EL device, and in order to solve this problem, in the present invention, at least two organic electroluminescent devices having at least an anode, a light emitting band, and a cathode as constituents, It is assumed that a mixture containing a compound of a kind is used, and the light emission from the light emission band has a wavelength component different from any of the fluorescence wavelengths of each of the compounds constituting the light emission band. |