| abstract |
(57) [Summary] [Structure] The pressure-sensitive adhesive sheet 1A of the present invention is used by being attached to a liquid crystal cell, and the pressure-sensitive adhesive layer 3 is bonded to one surface of a base material layer 2 which constitutes a polarizing plate. Further, the base material layer 2 of the adhesive layer 3 The release sheet 4 is attached to the surface on the opposite side. The pressure-sensitive adhesive layer 3 is composed of a laminated body in which layers 31 and 32 are laminated. For example, an acrylic adhesive is used as the adhesive forming each of the layers 31 and 32. The shear modulus and relaxation modulus of the layer 32 are lower than those of the layer 31 due to differences in the composition of the pressure-sensitive adhesive, the degree of cross-linking, and the amount of the plasticizer added in Nos. 1 and 32. [Effect] It is possible to relieve the stress caused by the contraction of the base material layer and reduce the stress concentration. In particular, white spots and color unevenness of the liquid crystal cell can be suppressed. |