| abstract |
Disclosed is a highly sensitive photopolymerization initiator for a photopolymerizable composition which is used for the formation of a resin black matrix or the like. The photopolymerization initiator comprises an oxime ester compound represented by the general formula (I). (I) wherein R1 represents a hydrogen atom, an alkyl group, an alkenyl group, a heteroaryl group, or a heteroarylalkyl group, or R1 may, together with X or Y, form a ring; R2 represents an alkanoyl group, an alkenoyl group, a cycloalkanoyl group, an aryloyl group, an alkoxycarbonyl group, an aryloxycarbonyl group, a heteroaryl group, a heteroaryloyl group, or an alkylaminocarbonyl group; X represents a bivalent aromatic hydrocarbon group and/or aromatic hetero group which is produced by the fusion of two or more rings; and Y represents a fused ring group having one or more rings fused to a phenyl group or a univalent group derived from a monocyclic aromatic heterocyclic ring. |