Optical film, polarizing plate and image display device

摘要

An optical film is provided as a protection film for a polarizer. The optical film has excellent transparency with less haze, excellent optical characteristics such as a small birefringence, and excellent mechanical strength, heat resistance and moisture permeability. A polarizing plate using such film on one surface or the both surfaces of the polarizer as a protection film, and an image display device using such polarizing plate are also provided. The optical film is composed of a polypropylene resin synthesized by a metallocene catalyst.