Patent ID: 6885421

Claim:
A liquid crystal display device, comprising: a liquid crystal cell having a pair of substrates and liquid crystal interposed therebetween, wherein liquid crystal molecules of said liquid crystal are oriented substantially vertically to respective surfaces of said pair of substrates; a pair of polarizing plates disposed so as to sandwich said liquid crystal cell therebetween, respective absorption axes of said pair of polarizing plates being orthogonal to each other; a first phase difference film, disposed between one of said pair of polarizing plates and said liquid crystal cell, said first phase difference film having a positive uniaxial anisotropy; and a second phase difference film, disposed between said one of said pair of polarizing plates and said first phase difference film, said second phase difference film having a negative uniaxial anisotropy, wherein each of said pair of polarizing plates has a base film with an optical axis substantially vertical to said pair of substrates, said base film having a negative uniaxial anisotropy, said first phase difference film has a retardation axis crossing at right angle the absorption axis of said one of said pair of polarizing plates on the same side when seen from said liquid crystal, and said second phase difference film has an optical axis substantially vertical to said pair of substrates; and when a parameter α [nm] in relation to Rp is: α=35+( Rlc/ 80−4) 2 ×3.5+(360 −Rlc )× Rtac/ 850, and a parameter β [nm] in relation to Rn is: β= Rlc− 1.9 ×Rtac, where Rp [nm] is a retardation in an in-plane direction of said first phase difference film, Rn [nm] is a retardation in a thickness direction of said second phase difference film, Rtac [nm] is a retardation in a thickness direction of said base film, and Rlc [nm] is a retardation in a thickness direction of said liquid crystal, said retardation Rp is set to fall within a range from not less than 80% to not more than 120% of the parameter α, and said retardation Rn is set to fall within a range from not less than 60% to not more than 90% of the parameter β.