POLY(VINYL ALCOHOL)-BASED POLARIZING FILM AND POLARIZING PLATE

摘要

Provided are: a poly(vinyl alcohol)-based polarizing film which is capable of giving a polarizing plate having few display defects and little color unevenness; and a high-quality polarizing plate including said polarizing film. The poly(vinyl alcohol)-based polarizing film is characterized by having a film surface hardness of 300-370 MPa in a nanoindentation test performed under the following conditions (1) to (3) in accordance with ISO14577:2002. Condition (1) Measurement environment: 25ºC and 50% RH Condition (2) Indenter: Berkovich type (triangular pyramid type; apex angle, 65º; ε=0.75; made of diamond) Condition (3) Maximum indentation depth: 500 nm