POLARIZING PLATE, OPTICAL FILM AND IMAGE DISPLAY

摘要

A polarizing plate comprising a polarizer and, superimposed on one or both major surfaces thereof, a protective film wherein the polarizer is constituted of a film having such a structure that microregions are dispersed in a matrix formed from a light transmitting water-soluble resin containing an iodide base light absorber, and wherein the protective film exhibits an in-plane phase difference of 20 nm or less and a phase difference along thickness direction of 30 nm or less. This polarizing plate realizes a high polarization degree even on the short wavelength side. Further, there can be provided a polarizing plate of high polarization degree and high durability.