Patent ID: 8350996
Filing Date: 2013-01-08
Classification: G02B,G02F

Abstract:
1. A polarizing plate for a TN-mode liquid crystal display device, comprising: a polarizer; a pair of protective films sandwiching the polarizer, at least one of the protective films including an optical compensation sheet being of a single layer and satisfying formulae (1) and (4); and a scattering film on a side opposite to the optical compensation sheet across the polarizer, the scattering film satisfying formula (12): wherein Re(λ) is an in-plane retardation value for light at a wavelength of λ nm, Rth(λ) is a retardation value in a thickness direction for light at a wavelength of λ nm, and the haze value indicates a haze value of the scattering film in a direction 30 degree-inclined with respect to a normal direction of the scattering film, wherein the optical compensation sheet satisfies formulae (5) and (6), or the optical compensation sheet satisfies formulae (7) and (8): wherein the optical compensation sheet contains a cellulose acylate, the cellulose acylate having substitution degrees satisfying formulae (9) to (11): wherein X represents a substitution degree of an acetyl group, and Y represents a total substitution degree of a propionyl group, a butyryl group, a pentanoyl group and a hexanoyl group, wherein the scattering film includes a light scattering layer containing a light-transparent resin and a light-transparent fine particle having a refracting index different from the light-transparent resin, and wherein a difference in refractive index between the light-transparent resin and the light-transparent fine particle is from 0.03 to 0.30.