Polarizer protective film, polarizing plate, and image display apparatus
First Claim
1. A polarizing plate, comprising:
- a polarizer formed of a polyvinyl alcohol-based resin, a polarizer protective film and an easy adhesion layer and an adhesive layer between the polarizer protective film and the polarizer,wherein the polarizer protective film comprises;
50 to 99% by weight of a (meth) acrylic resin having only a lactone ring structure as a ring structure with respect to the polarizer protective film; and
core-shell type nanoparticles having a core layer made of a rubber polymer and a shell layer made of a glass polymer;
wherein the rubber polymer comprises an alkyl(meth)acrylate;
wherein the glass polymer contains at least one monomer selected from an alkyl(meth)acrylate and an aromatic vinyl monomer; and
the lactone ring structure is represented by general formula (1);
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Abstract
Provided is a polarizer protective film, which has high heat resistance, high transparency, high optical characteristics, and high mechanical strength, and is excellent in adhesion with respect to a polarizer. Further, provided are a polarizing plate using such a polarizer protective film and a polarizer, which has high adhesion with respect to the polarizer protective film and the polarizer and is excellent in optical characteristics, and an image display apparatus of high quality using such a polarizing plate.
A polarizer protective film according to the present invention includes a (meth)acrylic resin having a lactone ring structure and core-shell type nanoparticles having a core layer made of a rubber polymer and a shell layer made of a glass polymer.
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Citations
13 Claims
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1. A polarizing plate, comprising:
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a polarizer formed of a polyvinyl alcohol-based resin, a polarizer protective film and an easy adhesion layer and an adhesive layer between the polarizer protective film and the polarizer, wherein the polarizer protective film comprises; 50 to 99% by weight of a (meth) acrylic resin having only a lactone ring structure as a ring structure with respect to the polarizer protective film; and core-shell type nanoparticles having a core layer made of a rubber polymer and a shell layer made of a glass polymer; wherein the rubber polymer comprises an alkyl(meth)acrylate; wherein the glass polymer contains at least one monomer selected from an alkyl(meth)acrylate and an aromatic vinyl monomer; and the lactone ring structure is represented by general formula (1); - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13)
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Specification