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

摘要

PROBLEM TO BE SOLVED: To provide a polyvinyl alcohol-based film to be used as a base sheet for producing polarizing film good in film formability, slight in light scattering and high in light transmittance and compatible with the higher precision, higher luminance and larger area of liquid crystal display devices.

SOLUTION: The polyvinyl alcohol-based film is characterized by being 200 nm or less in the correlation length derived from light scattering measurements obtained using a He-Ne laser of 633 nm wavelength as light source.

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