Patent ID: 6468675
Filing Date: 2002-10-22
Classification: H01L,Y10S

Abstract:
An organic electroluminescent (EL) device comprising an anode, a cathode, and a luminescent layer and a hole transport layer both disposed between said anode and said cathode, said luminescent layer including, in a form of a mixture or a single substance, a compound expressed in a general formula (1) as follows: wherein Ar1 represents a substituted or non-substituted arylene group having 5-30 carbons, each of Ar2 to Ar5 independently represents a substituted or non-substituted aryl group having 6-20 carbons, Ar2 and Ar3 and/or Ar4 and Ar5 may form a ring therebetween, at least one of Ar2 to Ar5 having a styryl group expressed in a general formula (2) as follows: wherein each of R1 to R11 independently represents hydrogen atom, halogen atom, hydroxy group, substituted or non-substituted amino group, cyano group, nitro group, substituted or non-substituted alkyl group, substituted or non-substituted alkenyl group, substituted or non-substituted cycloalkyl group, substituted or non-substituted alkoxy group, substituted or non-substituted aromatic hydrocarbon group, substituted or non-substituted aromatic heterocyclic group, substituted or non-substituted aralkyl group, substituted or non-substituted aryloxy group, substituted or non-substituted alkoxycarbonyl group, or a carboxyl group,said hole transport layer including, in a form of a mixture or a single substance, a compound expressed in a general formula (3) as follows: wherein each of Ar6 to Ar8 represents a substituted or non-substituted arylene group having 5-30 carbons, each of R14 to R16 independently represents hydrogen atom, halogen atom, hydroxy group, substituted or non-substituted amino group, cyano group, nitro group, substituted or non-substituted alkyl group, substituted or non-substituted alkenyl group, substituted or non-substituted cycloalkyl group, substituted or non-substituted alkoxy group, substituted or non-substituted aromatic hydrocarbon group, substituted or non-substituted aromatic heterocyclic group, substituted or non-substituted aralkyl group, substituted or non-substituted aryloxy group, substituted or non-substituted alkoxycarbonyl group, or a carboxyl group, andwherein each of at least two of R14 to R16 in the general formula (3) represents a diarylamino group expressed by â€”NAr9Ar10, each of given Ar9 to Ar10 independently representing a substituted or non-substituted aryl group.