Patent ID: 7012663

Claim:
A liquid crystal display device composed of a liquid crystal cell containing a liquid crystal held between a pair of substrates in a state to orient a major axis of a liquid crystal molecule in a direction nearly perpendicular to the face of the substrate in the absence of applied voltage, a 1st and a 2nd polarizing films placed at both sides of the liquid crystal cell and having polarizing axes directing perpendicular to each other and at least two retardation films (A,C) placed between the liquid crystal cell and the polarizing films wherein the retardation film A satisfies the following formula (1) and/or (2) R (λ 1 )/ R (λ 2 )<1 (1) K (λ 1 )/ K (λ 2 )<1 (2) (in the formulas (1) and (2), R(λ 1 ) and R(λ 2 ) are each an in-plane retardation at wavelength of λ 1 and λ 2 , K(λ 1 ) and K(λ 2 ) are each a retardation of the retardation film in the direction of thickness at wavelength of λ 1 and λ 2 , and λ 1 and λ 2 are wavelengths satisfying the relationship of 400 nm<λ 1 <λ 2 <700 nm), and the retardation film C satisfies the following formulas (3) and (4) at the same time: n x ≧n y >n z (3) 1 <K (λ 1 )/ K (λ 2 ) (4) (in the formulas, n x is a maximum refractive index in a plane of the retardation film ,n y is a refractive index in a direction perpendicular to the direction of the maximum refractive index in the plane of the retardation film and n z is a refractive index in the normal line direction of the retardation film, and the definitions of K, λ 1 and λ 2 are same as those described above); wherein the retardation film A satisfies the following formula (7) 10 <R (550)<300 (7) and the retardation film C satisfies the following formula (8) 50 <K (550)<400 (8) (in the formulas, the definitions of R and K are same as those described above).