Photosensitive resin composition and display device

A photosensitive resin composition comprising:

• (A) two or more kinds of cardo binders containing a repeating unit represented by Formula 1 below and having different molecular weights;
• (B) a reactive unsaturated compound;
• (C) a pigment;
• (D) an initiator;
• and (E) a solvent:
• 1) “*” indicates a portion where a bond is linked to the repeating unit;
• 2) R1 and R2 are each independently selected from the group consisting of deuterium, a halogen group, a C6-C60 aryl group, a C2-C60 heterocyclic group containing at least one heteroatom of O, N, S, Si, and P, a fused ring group of a C3-C60 aliphatic ring and a C6-C60 aromatic ring, a C1-C60 alkyl group, a C2-C60 alkenyl group, a C2-C60 alkynyl group, a C1-C60 alkoxyl group, and a C6-C30 aryloxy group;
• 3) R3 to R6 are each independently selected from the group consisting of hydrogen, deuterium, a halogen group, a C6-C60 aryl group, a C2-C60 heterocyclic group containing at least one heteroatom of O, N, S, Si, and P, a fused ring group of a C3-C60 aliphatic ring and a C6-C60 aromatic ring, a C1-C60 alkyl group, a C2-C60 alkenyl group, a C2-C60 alkynyl group, a C1-C60 alkoxyl group, and a C6-C30 aryloxy group;
• 4) R7 is selected from the group consisting of hydrogen, deuterium, a C1-C60 alkyl group, a C2-C60 alkenyl group, an acrylic group, and a methacrylic group;
• 5) M and n are each independently an integer of 0 to 4, wherein adjacent R's may be linked to each other to form a monocyclic or polycyclic ring when m is 2 or greater, and Res may be linked to each other to form a monocyclic or polycyclic ring when n is 2 or greater;
• 6) X2 is an acid anhydride residue or acid dianhydride residue;
• 7) X1 is represented by Formula 2 below;
• 8) Y1 and Y2 are each independently selected from the group consisting of hydrogen, deuterium, Formula 3 below;
• and Formula 4 below;
• 9) R8 and R9 are each independently selected from the group consisting of deuterium, a halogen group, a C6-C60 aryl group, a C2-C60 heterocyclic group containing at least one heteroatom of O, N, S, Si, and P, a fused ring group of a C3-C60 aliphatic ring and a C6-C60 aromatic ring, a C1-C60 alkyl group, a C2-C60 alkenyl group, a C2-C60 alkynyl group, a C1-C60 alkoxyl group, and a C2-C60 alkenyl group;
• 10) o and p are each independently an integer of 0 to 4, wherein adjacent R8's may be linked to each other to form a monocyclic or polycyclic ring when o is 2 or greater;
• and R9's may be linked to each other to form a monocyclic or polycyclic ring when p is 2 or greater;
• 11) L1 to L3 are each independently selected from the group consisting of a single bond, a C1-C60 alkylene group, and a C6-C60 arylene group;
• 12) R10 to R12 are each independently selected from the group consisting of hydrogen, deuterium, a halogen group, a C6-C60 aryl group, a C2-C60 heterocyclic group containing at least one heteroatom of O, N, S, Si, and P, a fused ring group of a C3-C60 aliphatic ring and a C6-C60 aromatic ring, a C1-C60 alkyl group, and a C1-C60 alkoxyl group;
• 13) R13 is either a methyl group or an ethyl group;
• 14) R14 is either a methoxy group or an ethoxy group;
• 15) Z1 is S or O;
• and
• 16) q and r are each independently an integer of 0 to 3, and q+r=3.