Patent ID: 7732063
Filing Date: 2010-06-08
Classification: B82Y,C07C,C09K,H01L,H05B,Y10S

Abstract:
1. An electroluminescence device comprising a pair of electrodes and a layer of an organic light emitting medium disposed between the pair of electrodes, wherein the layer of an organic light emitting medium comprises: (A) at least one arylamine compound, and (B) at least one compound selected from the group consisting of anthracene derivatives, spirofluorene derivatives and aluminum chelate compounds, said at least one arylamine compound represented by formula V-a: wherein X A g, h, i, and j each represent an integer from 0 to 5; n represents an integer of 0 to 3; and atoms and groups represented by a plurality of A or formula V-b: wherein X 3 represents a residue group derived from a substituted pyrene, A R an alkyl group having 1 to 10 carbon atoms; a substituted alkyl group having 1 to 10 carbon atoms; an aryl group having 6 to 20 carbon atoms; a substituted aryl group having 6 to 20 carbon atoms; an aralkyl group having 7 to 50 carbon atoms; a substituted aralkyl group having 7 to 50 carbon atoms; an alkoxyl group having 1 to 50 carbon atoms; a substituted alkoxyl group having 1 to 50 carbon atoms; an aryloxyl group having 5 to 50 carbon atoms; or a substituted aryloxyl group having 5 to 50 carbon atoms; where the substituent is at least one member selected from the group consisting of an alkyl group having 1 to 6 carbon atoms; a cycloalkyl group having 3 to 6 carbon atoms; an alkoxyl group having 1 to 6 carbon atoms; an aryloxyl group having 5 to 18 carbon atoms; an aralkyloxyl group having 7 to 18 carbon atoms; an arylamino group having 5 to 16 carbon atoms; a nitro group; a cyano group; an ester group having 1 to 6 carbon atoms; and a halogen atom; and at least one of R g, h, i and j each represent an integer of 0 to 5, k and m each represent an integer of 0 to 2, and atoms and groups represented by a plurality of A said anthracene derivatives represented by formula I: wherein A 1 and A 2 are the same or different and each independently represent a substituted or unsubstituted monophenylanthryl group or a substituted or unsubstituted diphenylanthryl group, and L represents a single bond or a divalent bonding group, or said anthracene derivative represented by formula II: wherein An represents a substituted or unsubstituted divalent anthracene residue group, A 3 and A 4 are the same or different and each independently represent a substituted or unsubstituted aryl group having 6 to 40 carbon atoms, at least one of A 3 and A 4 represents a substituted or unsubstituted monovalent condensed aromatic ring group or a substituted or unsubstituted aryl group having 10 or more carbon atoms; and said spirofluorene derivative represented by formula III-a: wherein A 5 to A 8 each independently represent a substituted or unsubstituted biphenyl group or a substituted or unsubstituted naphthyl group.