Liquid crystal display device and polarizing plate

A liquid crystal display, comprising:

• a liquid crystal cell;
• a light source;
• a first polarizing plate placed between the liquid crystal cell and the light source;
• and
• a second polarizing plate placed on a viewer side of the liquid crystal cell,
• wherein the first polarizing plate comprises a polarizer and a first protective film placed on a light source side principal surface thereof,
• wherein, among protective films included in first polarizing plate and the second polarizing plate, only the first protective film satisfies following relations:
• (i) 0 nm≦Re1≦3000 nm;
• (ii) Nz1≧5;
• and
• (iii) Rth1>2500 nm,
• wherein Re1, Rth1 and Nz1 are defined by following equations:
• Re1=(nx1−ny1)d1;
• Rth1=(nx1−nz1)d1;
• and
• Nz1=Rth1/Re1,
• wherein
• d1 represents a thickness of the first protective film,
• nx1 represents a refractive index in a direction of an in-plane slow axis of the protective film,
• ny1 represents a refractive index in a direction of an in-plane fast axis of the protective film, and
• nz1 represents a refractive index in a direction of the thickness of the protective film, and
• each refractive index being measured at 23° C. at a measurement wavelength of 590 nm;
• wherein light emitted from the light source is incident on the first polarizing plate in the form of substantially natural light with an Im/Ix ratio of 0.90 or more,
• wherein Ix and Im represents maximum and minimum, respectively, of light intensity measured by rotating analyzer method, in which analyzer is rotated by 360°.