Patent ID: 7990502

Claim:
A liquid-crystal display device comprising: a liquid-crystal cell, a first polarizing element and a second polarizing element disposed on either side of the liquid-crystal cell respectively, a first retardation layer between the first polarizing element and the liquid-crystal cell, and a second retardation layer between the second polarizing element and the liquid-crystal cell, wherein: a transmission axis of the first polarizing element is perpendicular to a slow axis of the first retardation layer; and a transmission axis of the second polarizing element is parallel to a slow axis of the second retardation layer; and the first retardation layer and the second retardation layer satisfy the following formula (1): 0 nm<Δ Re 1 (548)−Δ Re 2 (548)≦50 nm (1) wherein ΔRe 1 (548) is a value obtained by subtracting in-plane retardation (Re) of the first retardation layer, measured under the conditions that a wavelength is 548 nm, that a relative humidity is 80% and that a temperature is 25° C., from Re thereof measured under the conditions that a wavelength is 548 nm, that a relative humidity is 10% and that a temperature is 25° C.; and ΔRe 2 (548) is a value obtained by subtracting Re of the second retardation layer, measured under the conditions that a wavelength is 548 nm, that a relative humidity is 80% and that a temperature is 25° C., from Re thereof measured under the conditions that a wavelength is 548 nm, that a relative humidity is 10% and that a temperature is 25° C.