A composition for forming a transparent resin layer, said composition comprising a polymerization initiator having a molar absorption coefficient ([epsilon]) at a wavelength of 365 nm of 1000 mol-1.L.cm-1 or smaller, a polymerizable compound, a polymer and a solvent. The polymerization initiator is preferably at least one member selected from the group consisting of an [alpha]-hydroxyacetophenone compound and a phosphine compound.