Optical laminate, polarizing plate, and image display device

Abstract

An optical laminate having a barrier layer having excellent adhesiveness to a pressure sensitive adhesive layer, a polarizing plate, and an image display device. The optical laminate has a film substrate, a barrier layer, and a pressure sensitive adhesive layer in this order, in which the barrier layer is formed of a composition for forming a barrier layer, containing a monomer having a polymerizable group, and satisfies Condition 1: a functional group that reacts with a hydroxyl group to form a covalent bond is present on a surface of the barrier layer on a pressure sensitive adhesive layer side and Condition 2: no hydroxyl group other than the hydroxyl group included in the functional group is present in a region from the surface of the barrier layer on the pressure sensitive adhesive layer side to a half of a thickness of the barrier layer.

Dependencies are inferred from the claim text.