Dinaphthopyrene compound, and organic EL element and organic EL display using the same

Abstract

Providing an organic EL element utilizing a novel dinaphthopyrene compound, having high color purity of green light, excellent light-emitting efficiency, light-emitting luminance. The organic EL element has, in between a positive electrode and a negative electrode, an organic thin-film layer including a light-emitting layer. The organic thin-film layer contains the dinaphthopyrene compound comprising a structure expressed by the following structural formula: 1 where R1 through R18 may be the same or may be different, and represent hydrogen atoms or substituents. At least one of R1 through R18 preferably is selected from aryl groups, arylamino groups and diarylamino groups. The organic thin film layer having electron transporting layer or positive hole transporting layer containing dinaphthopyrene compound, light-emitting layer containing a host compound whose light absorption wavelength is at a short wavelength side of the dinaphthopyrene compound, and light-emitting wavelength in a vicinity of the light absorption wavelength of the dinaphthopyrene compound.

Dependencies are inferred from the claim text.