A polarizing plate, and a liquid crystal display device

2008 
The first polarizing plate protective film, disposed on a surface opposite to the first polarizing plate protective film of the polarizer and the polarizer, the orientation of the rod-like liquid crystal oriented in the direction perpendicular to the second polarizing plate protective film on the a polarizing plate having an optical compensation film formed by providing a fixed layer, 23 ° C. of the optical compensation film, retardation Ro of the following formula 2 and 3 at a wavelength of 590nm in an environment of 55% RH, Rt is, Ro: 30~130nm, Rt: -100~65nm and | Rt | <| Ro / 2 |, and is in the polarizing plate, the optical compensation film, the wavelength dispersion characteristic D represented by the following formula 1 ( polarizer R40) is characterized in that it is a 2.0~6.5Nm. Equation 1: D (R40) = R40 (630) -R40 (480) (Wherein, R40 represents a retardation value of fast axis in the plane was measured by tilting 40 ° as a rotation axis of the optical compensation film. (630), (480) represents each measurement wavelength (nm). )
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