Pigment Dispersion Composition, Resist Composition for Color Filter Including the Same, and Color Filter Using the Same

A pigment dispersion composition comprising

• a pigment, a binder resin, a solvent, and a dispersing agent,
• wherein the dispersing agent comprises a first dispersing agent represented by the following Formula 1 and a second dispersing agent represented by the following Formula 2:
• wherein, in the above formulae, R1 to R6 are independently hydrogen or alkyl,
• R7 to R13 are selected from the group consisting of substituted or unsubstituted alkyl, substituted or unsubstituted alkenyl, substituted or unsubstituted alkynyl, substituted or unsubstituted aryl, substituted or unsubstituted heteroaryl, substituted or unsubstituted arylalkyl, substituted or unsubstituted cycloalkyl, substituted or unsubstituted heterocycloalkyl, substituted or unsubstituted cycloalkenyl, substituted or unsubstituted cycloalkynyl, substituted or unsubstituted alkoxy, substituted or unsubstituted alkylamino, substituted or unsubstituted alkoxyamino, and substituted or unsubstituted alkanol,
• m is in the range of about 30 to about 70 mol %, n is in the range of about 30 to about 70 mol %, and
• k and k′ are independently integers ranging from 0 to 18.