Patent ID: 8512921

Claim:
A pigment dispersion composition comprising: [A] a pigment; [B] a dispersing agent of the following Formula 1; [C] a cardo-based binder resin of the following Formula 2; and [D] a solvent wherein, in the above Formula 1, R 1 to R 5 are the same or different and are independently hydrogen, 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 alkyl amino, substituted or unsubstituted alkoxy amino, or substituted or unsubstituted alkanol, X is halogen, sulfone, alkylsulfone, or hydroxy, m 1 ranges from 30 to 100 mol %, m 2 ranges from 0 to 70 mol %, n 1 to n 4 are the same or different and are independently integers ranging from 1 to 20, and a and b are the same or different and are independently integers ranging from 0 to 18, wherein, in the above Formula 2, R 6 to R 9 are the same or different and are independently hydrogen, halogen, or substituted or unsubstituted alkyl, R 10 and R 11 are the same or different and are independently CH 2 OR 13 , wherein R 13 is acryl, vinyl, or methacryl, R 12 is hydrogen, alkyl, acryl, vinyl, or methacryl, Z 1 is CO, SO 2 , CR 14 R 15 , SiR 16 R 17 wherein R 14 to R 17 are the same or different and are independently hydrogen, fluoroalkyl, or alkyl, O, a single bond, or a unit represented by one of the following Formulae 4 to 14, Z 2 is a moiety derived from acid dianhydride, and m 3 is an integer ranging from 1 to 40, wherein, the above Formula 8, R f is hydrogen, ethyl, C 2 H 4 Cl, C 2 H 4 OH, CH 2 CH═CH 2 , or phenyl,