TWI733376B

• Main Authors: NANJO, TAKASHI, SATO, SHIORI
• Format: Patent
• Language: Chinese
• Published: 11.07.2021
• Subjects: AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F,C08G; CHEMISTRY; COMPOSITIONS BASED THEREON; GENERAL PROCESSES OF COMPOUNDING; LAYERED PRODUCTS; LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT ORNON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM; METALLURGY; OPTICAL ELEMENTS, SYSTEMS, OR APPARATUS; OPTICS; ORGANIC MACROMOLECULAR COMPOUNDS; PERFORMING OPERATIONS; PHYSICS; THEIR PREPARATION OR CHEMICAL WORKING-UP; TRANSPORTING; WORKING-UP

A polarizing plate according to the present invention sequentially comprises a protective film A, a polarizer, a protective film B and an adhesive layer in this order. The protective film A contains a (meth)acrylic resin and rubber particles a. The protective film B contains a (meth)acrylic resin and rubber particles b. In a cross-section of the protective film A, the average aspect ratio of the rubber particles is from 1.0 to 1.1; and in a cross-section of the protective film B, the average aspect ratio of the rubber particles is from 1.2 to 3.0. The (meth)acrylic resin contained in the protective film B is a copolymer that contains 50-95% by mass of a structural unit derived from methyl methacrylate, 1-25% by mass of a structural unit derived from a phenyl maleimide and 1-25% by mass of a structural unit derived from an acrylic acid alkyl ester.