Patent ID: 7341678

Claim:
A charge-transporting varnish, comprising a charge transporting substance being an oligoaniline compound represented by the formula (1) and at least one solvent, the charge transporting substance is dissolved or homogeneously dispersed in said solvent; wherein R 1 represents a hydrogen atom, an unsubstituted or substituted monovalent hydrocarbon group, an organooxy group, or an acyl group, R 2 and R 3 independently represent a hydrogen atom, an unsubstituted or substituted monovalent hydrocarbon group, or an acyl group, R 4 to R 7 independently represent a hydrogen atom, a hydroxyl group, an unsubstituted or substituted monovalent hydrocarbon group, an organooxy group, an acyl group, or a sulfonate group, m and n are independently an integer of 1 or over and satisfy m+2n≦20, and a quinoid moiety exists at an arbitrary position of the structural formula as tautomerized.