Patent ID: 8477273

Claim:
A VA-mode liquid-crystal display device comprising at least a front-side polarizing element, a rear-side polarizing element, and a VA-mode liquid-crystal cell disposed between the front-side polarizing element and the rear-side polarizing element; wherein the VA-mode liquid-crystal cell comprises a front-side substrate, a rear-side substrate, and a liquid-crystal layer disposed between them, wherein the ratio of the member-contrast ratio (CR f ) of the front-side substrate to the member-contrast ratio (CR r ) of the rear-side substrate, CR f /CR r satisfies the following relational formula: 3≦ CR f /CR r , wherein the rear-side substrate and the front-side substrate include any constitutive member(s) of the VA-mode liquid-crystal cell disposed on the respective substrates, wherein the rear-side polarizing element is directly stuck to the VA-mode liquid-crystal cell, and wherein the VA-mode liquid-crystal display device further comprises a retardation region comprising one or more retardation layers between the front-side polarizing element and the VA-mode liquid-crystal cell, and wherein the retardation region satisfies the following formulae: 30 nm≦ Re (550)≦90 nm, 170 nm≦ Rth (550)≦300 nm, and Δ nd (550)−70 ≦Rth (550)≦Δ nd (550)−10, in which d means the thickness (nm) of the liquid-crystal layer of the VA-mode liquid-crystal cell; Δn(λ) means the refractivity anisotropy of the liquid-crystal layer of the VA-mode liquid-crystal cell at a wavelength λ; Δnd(λ) means the product of Δn(λ) and d; and Rth(λ) means the retardation (nm) in the thickness direction of the retardation region at a wavelength λ.