Patent ID: 8760601

Claim:
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≦Re 1 ≦3000 nm; (ii) Nz 1 ≧5; and (iii) Rth 1 >2500 nm, wherein Re 1 , Rth 1 and Nz 1 are defined by following equations: Re 1 =( nx 1 −ny 1 ) d 1 ; Rth 1 =( nx 1 −nz 1 ) d 1 ; and Nz 1 =Rth 1 /Re 1 , wherein d 1 represents a thickness of the first protective film, nx 1 represents a refractive index in a direction of an in-plane slow axis of the protective film, ny 1 represents a refractive index in a direction of an in-plane fast axis of the protective film, and nz 1 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°.