Patent ID: 8085365
Filing Date: 2011-12-27
Classification: C08J,C09K,G02B,G02F

Abstract:
1. A liquid crystal display device, comprising: a polarizing plate which includes a pair of protective films and a polarizing film between the pair of protective films, wherein at least one of the pair of protective films is a cellulose acylate film having a film thickness of from 20 to 70 μm and an elastic modulus of from 3.5 to 10 GPa in at least one direction of a film casting direction and a width direction, and the liquid crystal display device satisfies a viewing angle in which polar angles are 80° or more in 3 directions out of top, bottom, left, and right directions and an in-plane contrast of 300 or more, wherein the cellulose acylate film comprises a cellulose acylate satisfying expressions (I) and (II): wherein A represents a substitution degree of a hydroxyl group in a glucose unit of the cellulose acylate by an acetyl group; and B represents a substitution degree of a hydroxyl group in a glucose unit of the cellulose acylate by a propionyl group, a butyryl group or a benzoyl group, and B is 0.6 or more and 0.8 or less.