Patent ID: 8018552

Claim:
A transmissive liquid crystal display device comprising at least: a backlight; a polarizer; a second optically anisotropic layer; a first optically anisotropic layer; a homogeneously aligned liquid crystal cell comprising upper and lower substrates facing each other and a liquid crystal layer sandwiched between the upper and lower substrates; and a polarizer, arranged in piles in this order from the backlight, wherein when the ratio of anisotropic refractive indices Δn at wavelength λ=450 nm and λ=590 nm is defined by wavelength dispersion of birefringence D (D=Δn (450)/Δn (590)), the wavelength dispersion of birefringence D1 of a liquid crystal film forming the first optically anisotropic layer, the wavelength dispersion of birefringence D2 of a liquid crystal film forming the second optically anisotropic layer and the wavelength dispersion of birefringence DLC of the liquid crystal cell are within the ranges defined as follows: D1>D2 D1=1.00 to 1.20 D2=0.80 to 1.10 |( DLC+D 1)/2 −D 2|<0.5, and when the thickness of the first optically anisotropic layer is d1, the principal indices of plane direction refraction of the first layer are Nx1 and Ny1, the principal index of thickness direction refraction of the first layer is Nz1 and the retardation in the plane of the first layer Re1 is defined as Re1=(Nx1-Ny1)xd1 [nm], and the thickness of the second optically anisotropic layer is d2, the principal indices of plane direction refraction of the second layer are Nx2 and Ny2, the principal index of thickness direction refraction of the second layer is Nz2 and the retardation in the plane of the second layer Re2 is defined as Re2=(Nx2-Ny2)xd2 [nm], the retardation Re1 of the first optically anisotropic layer, the retardation Re2 of the second optically anisotropic layer and the retardation Re(LC) of the liquid crystal cell upon application of an electric voltage for black image display, each at a wavelength of 550 nm are within the ranges defined as follows | Re 1 +Re ( LC )− Re 2|<30 nm Re1=20 to 140 nm Re2=50 to 180 nm, the first optically anisotropic layer comprises at least a liquid crystal film with a fixed nematic hybrid orientation.