Patent ID: 6899961

Claim:
An organic electroluminescence device having at least an anode, a light-emitting zone and a cathode, wherein the light-emitting zone comprises a mixture containing at least two mutually interdispersed compounds, and a spectrum of the luminescence from the light-emitting zone includes at least one peak at a wavelength which is different from a spectrum of any one of fluorescent peak positions of the at least two compounds included in the light-emitting zone, wherein the light-emitting zone comprises a mixture containing at least one electroluminescent material represented by the following formula [1] wherein Ar 1 designates a substituted or non-substituted arylene group having 5 to 42 carbon atoms, Ar 2 to Ar 5 designate, independently with one another, a substituted or non-substituted aryl group having 6 to 20 carbon atoms, and wherein at least one of Ar 2 to Ar 5 of the compound represented by the formula [1] has a substituted or non-substituted styryl group as a substituent.