For the polarizing layer of the type, for example, usable is an absorption-type polarizing film formed by stretching a hydrophilic polymer film such as a polyvinyl alcohol film, a partially-formalized polyvinyl alcohol film, or a partially saponified, ethylene-vinyl acetate copolymer film that has absorbed iodine or a dichromatic substance such as a dichromatic dye, or such a absorption-type polar