Patent ID: 8592131

Claim:
A positive photosensitive resin composition comprising (A) a novolac resin including a repeating unit represented by the following Chemical Formula 6, a poly-4-hydroxy styrene resin including a repeating unit represented by the following Chemical Formula 7, or a combination thereof; (B) an ortho-nitrobenzyl ester compound including a compound represented by the following Chemical Formula 1-1 or Chemical Formula 1-2; (C) a photosensitive diazoquinone compound; (D) a silane compound; (E) a phenol compound; and (F) a solvent, wherein in Chemical Formula 6, each R 5 is the same or different and each is independently hydrogen or C1 to C10 alkyl, and n 3 is an integer ranging from 0 to 3, wherein in Chemical Formula 7, each R 6 is the same or different and each is independently hydrogen or C1 to C10 alkyl, and n 4 is an integer ranging from 0 to 4, wherein in Chemical Formulas 1-1 and 1-2, R 1 and R 2 are the same or different and are each independently substituted or unsubstituted C1 to C20 aliphatic organic group or substituted or unsubstituted C3 to C20 alicyclic organic group, R 3 and R 4 are the same or different and are each independently a single bond or a substituted or unsubstituted divalent C1 to C20 aliphatic organic group, Z 1 and Z 2 are the same or different and are each independently hydroxy (OH), amine (N(R 103 )(R 104 ), wherein R 103 and R 104 are the same or different and are each independently hydrogen or a substituted or unsubstituted aliphatic organic group), carboxyl (COOH) or aldehyde (CHO), n1 and n2 are the same or different and are each independently 0 or 1, wherein the resin composition comprises: about 0.1 to about 20 parts by weight of the ortho-nitrobenzyl ester compound including a compound represented by Chemical Formula 1-1 or Chemical Formula 1-2 (B); about 5 to about 100 parts by weight of the photosensitive diazoquinone compound (C); about 0.1 to about 30 parts by weight of the silane compound (D); about 1 to about 30 parts by weight of the phenol compound (E); and about 200 to about 900 parts by weight of the solvent (F), based on 100 parts by weight of the novolac resin including a repeating unit represented by Chemical Formula 6, the poly-4-hydroxy styrene resin including a repeating unit represented by Chemical Formula 7, or a combination thereof (A).