POLYVINYL ALCOHOL-BASED FILM, POLARIZING FILM USING SAME, AND POLARIZING PLATE

摘要

PROBLEM TO BE SOLVED: To provide a polyvinyl alcohol-based film having a low birefringence and a polarizing film excellent in in-plane uniformity of polarization degree.;SOLUTION: The polyvinyl alcohol-based film has a width of not less than 3 m, wherein the in-plane retardation is not more than 30 nm and run-outs of the in-plane retardation in the film width direction are not more than 15 nm.;COPYRIGHT: (C)2007,JPO&INPIT