Optical laminate

An optical laminate comprising at least one polarizing plate and at least one pressure-sensitive adhesive layer and satisfying the following formulae (1) and (2):

• A(400)≥0.5 (1)
• A(420)/A(400)≤0.3 (2)
• where A(400) represents the absorbance of the optical laminate at a wavelength of 400 nm in the transmission direction of the polarizing plate and A(420) represents the absorbance of the optical laminate at a wavelength of 420 nm in the transmission direction of the polarizing plate,
• wherein the at least one pressure-sensitive adhesive layer contains a light-selective absorption compound, represented by the formula (I):
• wherein;
• R1 represents a hydrogen atom or an alkyl group having 1 to 10 carbon atoms provided that when the alkyl group has at least one methylene group, at least one of these methylene groups is optionally substituted with an oxygen atom or a sulfur atom, and R2 and R3 independently from each other represent a hydrogen atom or an alkyl group having 1 to 12 carbon atoms;
• and
• A represents a methylene group, a secondary amino group, an oxygen atom, or a sulfur atom;
• and
• X1 and X2 independently from each other represent an electron attractive group provided that X1 and X2 may be combined to form a ring structure
• wherein the electron attractive group is selected from a cyano group, a nitro group, a halogen atom, an alkyl group substituted with a halogen atom, and —Y1—R4, wherein R4 represents a hydrogen atom, an alkyl group having 2 to 50 carbon atoms, or an alkyl group having at least one methylene group and 2 to 50 carbon atoms, provided that at least one methylene group is substituted with an oxygen atom and a substituent may be combined with a carbon atom on the alkyl group, and Y1 represents —CO—, —COO—, —OCO—, NR5CO—, or —CONR6, wherein R5 and R6 independently represent a hydrogen atom, an alkyl group having 1 to 6 carbon atoms, or a phenyl group,
• wherein the at least one pressure-sensitive adhesive layer includes a pressure-sensitive adhesive composition containing:
• (A) an acrylic resin which is a copolymer having a weight average molecular weight of 500000 to 2000000 and including, as structural components;
• (A-1) 50 to 99.9% by mass of two or more (meth)acrylate monomers represented by the formula (A-1):
• wherein Rp represents a hydrogen atom or a methyl group, Rq represents an alkyl group having 1 to 20 carbon atoms or an aralkyl group in which hydrogen atoms constituting the alkyl group or aralkyl group are optionally substituted with —O—(C2H4O)n—Rr (n denotes an integer from 0 to 4 and Rr represents an alkyl group having 1 to 12 carbon atoms or an aryl group having 1 to 12 carbon atoms);
• and
• (A-2) 0.1 to 50% by mass of an unsaturated monomer having a polar functional group, based on the total solid content of the acrylic resin;
• (B) 0.01 to 10 parts by mass of a crosslinking agent based on 100 parts by mass of the acrylic resin;
• and
• (C) the light-selective absorption compound satisfies the following formula (3):
• ε(420)/ε(400)≤0.3 (3)
• where ε(400) L/(g·cm) represents a gram absorption coefficient at a wavelength of 400 nm and ε(420) L/(g·cm) represents a gram absorption coefficient at a wavelength of 420 nm.