Patent ID: 7829206

Claim:
An organic electroluminescence device comprising a cathode, an anode and an organic thin film layer which comprises one layer or a plurality of layers comprising at least a light emitting layer and is disposed between the cathode and the anode, wherein the organic thin film layer comprises at least one benzanthracene derivative having hydrogen atom at a 12-position which is represented by formula (1): wherein R 1 to R 10 each independently represent hydrogen atom, a substituted or unsubstituted aromatic hydrocarbon cyclic group having 6 to 50 nuclear carbon atoms, a substituted or unsubstituted aromatic heterocyclic group having 5 to 50 nuclear atoms, a substituted or unsubstituted alkyl group having 1 to 50 carbon atoms, a substituted or unsubstituted cycloalkyl group having 3 to 50 nuclear carbon atoms, a substituted or unsubstituted alkoxy group having 1 to 50 carbon atoms, a substituted or unsubstituted aralkyl group having 6 to 50 nuclear carbon atoms, a substituted or unsubstituted aryloxy group having 5 to 50 nuclear carbon atoms, a substituted or unsubstituted arylthio group having 5 to 50 nuclear carbon atoms, a substituted or unsubstituted alkoxycarbonyl group having 1 to 50 carbon atoms, a substituted or unsubstituted silyl group 1 to 50 carbon atoms, carboxy group, a halogen atom, cyano group, nitro group or hydroxy group; L represents a linking group, which is a single bond, a substituted or unsubstituted divalent aromatic hydrocarbon cyclic group having 6 to 50 nuclear carbon atoms, a substituted or unsubstituted divalent aromatic heterocyclic group having 5 to 50 nuclear atoms, a substituted or unsubstituted fluorenylene group or a substituted or unsubstituted carbazolylene group; n represents an integer of 1 to 4 and, when n represents an integer of 2 or greater, a plurality of linking groups represented by L may be same with or different from each other; Ar represents a single bond, hydrogen atom, a substituted or unsubstituted aromatic hydrocarbon cyclic group having 6 to 50 nuclear carbon atoms, a substituted or unsubstituted aromatic heterocyclic group having 5 to 50 nuclear atoms, fluorenyl group or carbazolyl group; and m represents an integer of 1 to 4 and, when m represents an integer of 2 or greater, a plurality of atoms and groups represented by R 1 to R 10 and L may be same with or different from each other, the light emitting layer comprises a styrylamine compound represented by formula (A): wherein Ar 3 represents a group selected from phenyl group, biphenyl group, terphenyl group, stilbene group and distyrylaryl groups, Ar 4 and Ar 5 each represent hydrogen atom or an aromatic hydrocarbon group having 6 to 20 carbon atoms, the groups represented by Ar 3 , Ar 4 and Ar 5 may be substituted, p represents an integer of 1 to 4, or the light emitting layer comprises an arylamine compound represented by formula (B) wherein Ar 6 to Ar 8 each represent a substituted or unsubstituted aryl group having 5 to 40 nuclear carbon atoms, and q represents an integer of 1 to 4.