A polarizing plate which comprises: (a) a layer comprising polyvinyl alcohol fibers which have a dichroic dye adsorbed thereon and an aspect ratio of 10 or higher and which are disposed in a planar arrangement so as to be oriented in one direction or a combination of the layer (a) and (b) a layer comprising fibers which have an aspect ratio of 10 or higher and a difference in refractive index between the major-axis direction and the minor-axis direction of 0.05 or larger and have no dichoric dye adsorbed thereon and which are disposed in a planar arrangement so as to be oriented in one direction and/or (b') fibers which have an aspect ratio of 10 or higher and a difference in refractive index between the major-axis direction and the minor-axis direction less than 0.05 and have no dichoricdye adsorbed thereon, these fibers being disposed in a planar arrangement so as to be oriented in one direction; and (c) an optically transparent resin.