Disclosed is a liquid-crystal display device comprising a liquid-crystal cell comprising a liquid-crystal layer that aligns vertically to the substrate thereof in a black state, two polarizing elements that are disposed to sandwich the liquid-crystal cell therebetween in a manner that their absorption axes are perpendicular to each other, and retardation films having equivalent optical anisotropy that are disposed between each of the two polarizing elements and the liquid-crystal cell, wherein the retardation films comprise a cellulose acylate and a liquid-crystal compound, and satisfy 30 nm≦Re(550)≦80 nm, 70 nm≦Rth(550)≦140 nm, Re(450)/Re(550) 1.