Patent ID: 7652737

Claim:
A polarizing film pair comprising first and second polarizing films including first and second polarizing layers, respectively, said first polarizing film being associated with a first retardation film disposed between said first polarizing layer and said second polarizing film, said first retardation film having a birefringence characteristic, an in-plane retardation of 0 to 10 nm and a thickness-direction retardation of 0 to 35 nm, said second polarizing film being associated with second and third retardation films disposed between said second polarizing layer and said first polarizing film, said second retardation film having a birefringence characteristic, an in-plane retardation of 35 to 245 nm, a first refractive index (n 1 ) along a first in-plane optical axis and a second refractive index (n 2 ) along a second in-plane optical axis where n 1 <n 2 , said second in-plane optical axis being parallel or perpendicular to an absorption axis of said second polarizing layer, and said third retardation film having a birefringence characteristic, an in-plane retardation of 0 to 15nm, a thickness-direction retardation of 50 to 123 nm, a positive uniaxial optical characteristic, and an optical axis perpendicular to said second polarizing layer, wherein said first retardation film has an in-plane retardation of 0 to 7 nm and a thickness-direction retardation (ni1) of 0 to 17 nm, said third retardation film has an in-plane retardation of 0 to 10 nm and a thickness-direction retardation (nc1), and the following relationship holds: 57.0−0.23 × ni 1+0.11 × ni 1 2 ≦nc 1≦120.0−0.42× ni 1−0.08× ni 1 2 .