Organic electroluminescent device
AssigneeSanyo Electric Co., Ltd.
InventorsTakeshi Sano, Takanori Fujii, Yuji Hamada, Kenichi Shibata, Kazuhiko Kuroki
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Abstract
In an organic electroluminescent device according to the present invention, at least a luminescent layer using an organic material is provided between a hole injection electrode and an electron injection electrode, and a luminescent material composed of a condensed polycyclic aromatic compound having condensed rings each having a benzene ring as a basic unit the number of which is in the range of 2 to 10, along with an organic material having hole transporting characteristics, is contained as the organic material in the luminescent layer.
Claims6
An organic electroluminescent device having at least a luminescent layer using an organic material between a hole injection electrode and an electron injection electrode, wherein
- a luminescent material composed of a dopant that is a condensed polycyclic aromatic compound having condensed rings, each having a benzene ring as a basic unit the number of which is in the range of 2 to 10, and a diamine derivative indicated by the following chemical formula 4, is present in the luminescent layer ##STR8## where R1 in the foregoing chemical formula 4 is any one of aromatic groups indicated by the following chemical formula 5, ##STR9## where R2 in the foregoing chemical formula 4 is any one of aromatic groups (a)-(p) in the following chemical formula 6, R3 in the foregoing formula 4 is any one of aromatic groups (b)-(d) in the following chemical formula 6, and R2 and R3 may be the same or different from each other ##STR10##
Dependencies are inferred from the claim text.