| abstract |
The present invention discloses a photosensitive resin composition for black matrix, which shows no undercut after development. The photosensitive resin composition comprises (A) an alkali-soluble resin, (B) a photopolymerizable monomer, (C) a photoinitiator, (D) a solvent, and (E) a black pigment; wherein the alkali-soluble resin (A) comprises a functional group having a general formula (a-1); n n n(each R is independently H, linear or branch alkyl of C1-C5, phenyl, or halogen.) wherein a photoinitiator having a general formula (c-1) n n n(Z 1 is selected from the group consisting of Ra, Rb—S, Rc-O, wherein each of Ra, Rb, Rc is independently H, alkyl or aryl; Z 2 is H, alkyl of C1-C4, or halide.), wherein the optical density value of black matrixis is greater than 2.0. |