| abstract |
PROBLEM TO BE SOLVED: To provide an optical laminate, a polarizing plate and a liquid crystal display device which are excellent in color, contrast and viewing angle dependency in various use environments and can obtain a high quality image. An optical laminate including at least two optical units having different retardations, wherein at least one optical unit is a polymer film satisfying the relationship of the following formulas (A), (B), and (C): An optical laminate, a polarizing plate and a liquid crystal display using the same. (A) Re ≦ 10 nm; (B) −25 nm ≦ Rth ≦ 25 nm; (C) 0.75 ≦ (photoelastic coefficient measured at a wavelength of 450 nm) / (photoelastic coefficient measured at 630 nm) ≦ 1.25. [In the formula, Re is front retardation at a wavelength of 590 nm, and Rth is retardation in the film thickness direction at a wavelength of 590 nm. ] [Selection figure] None |