An optical member for pressure-sensitive adhesive composition and an optical member for a pressure-sensitive adhesive tape

The present invention suppresses whitening caused by high temperature and high humidity, and to provide an optical member for a pressure-sensitive adhesive composition capable of realizing high reliability. The present invention also aims to provide a pressure-sensitive adhesive tape for optical member produced by using the optical member for the pressure-sensitive adhesive composition. The present invention is an optical member for pressure-sensitive adhesive composition containing an acrylic copolymer, said acrylic copolymer, 2-hydroxyethyl acrylate 1 to 25 wt%, N-vinylpyrrolidone from 1 to 25 wt%, monomer 0.5 to 30% by weight having a structure represented by the following general formula (1-1), or, 0.1 to 30 wt% monomer having the structure represented by the following general formula (1-2) an optical member for a pressure-sensitive adhesive composition obtained by polymerizing a monomer mixture containing. [Formula 1] In the general formula (1-1), [Formula 2] In the general formula (1-2),