| abstract |
PROBLEM TO BE SOLVED: A polarizing plate protective film having excellent low moisture permeability and interlayer adhesion and having a small drying load during polarizing plate processing, a highly durable polarizing plate, and either a high humidity environment or a low humidity environment However, the provision of a liquid crystal display device capable of maintaining high quality display image quality over a long period of time. SOLUTION: At least a plurality of coating layers having low moisture permeability are formed on a transparent substrate, and the plurality of coating layers form a mixed region at the interface, and are at 60 ° C. and 95% relative humidity (WVTR95). moisture permeability is not more than 2 per day 30 g / m 2 or more, days 450 g / m in the polarization moisture permeability at 60 ° C. 40% RH (WVTR40) is equal to or less than 2 per day 30 g / m It is a protective film for plates. [Selection figure] None |