Patent ID: 9638850
Date: 2017-05-02
CPC Classifications: G02B

Claim:
1. A polarizer comprising a polarizing film and a protecting film provided directly on at least one surface of the polarizing film, wherein the protecting film is formed by curing an uncured epoxy resin composition by cationic polymerization with irradiation of active energy ray, the uncured epoxy resin comprises an epoxy resin as a main component, the epoxy resin contains no aromatic ring in a molecule, the polarizing film is a film of polyvinyl alcohol, and the film of polyvinyl alcohol has a dichromatic coloring matter either absorbed and oriented in the film of polyvinyl alcohol, absorbed and oriented on the film of polyvinyl alcohol, or absorbed and oriented both in and on the film of polyvinyl alcohol, the epoxy resin has an epoxy equivalent weight of from 50 to 1,500 g/eq, and a thickness of the protecting film is 40 μm or smaller.