Protective film of polarizer, polarizer and method for producing it, and liquid crystal display device
申请人:Fukagawa Nobutaka
公开号:US20110273646A1
公开(公告)日:2011-11-10
A protective film to a polarizer including a cellulose acylate and satisfying the following requirement (1) or (2):
(1): The surface of the film has a pH of from 3.0 to 4.5.
(2): The surface of the film has a pH of more than 4.5 and at most 6.0, and the film has a moisture permeability of at least 2800 g/m
2
·day.