LIQUID CRYSTAL DISPLAY DEVICE

摘要

PROBLEM TO BE SOLVED: To provide a TN-LCD which is greatly improved in a display contrast and the visual field angle characteristic of gradation inversion. SOLUTION: The liquid crystal display device of a normally white mode consisting of a twisted nematic type liquid crystal cell of about 90 deg. in twist angle and two polarizing plates arranged on both sides of the cells is constituted by laminating two kinds of optical compensation layers varying in characteristics; the optical compensation layers (A) having the characters that refractive index anisotropy hardly exists within the film plane and that the refractive index in the film thickness direction is smaller than the refractive index within the plane and the optical compensation layers (B) having the characteristics that the layers have optically positive refractive index anisotropy and that the optical axis inclines by 20 to 70 deg. from the normal direction of the film by at least one layer each in order of the polarizing plate/the optical compensation layer (A)/the optical compensation layer (B)/the liquid crystal cell/the optical compensation layer (B)/the optical compensation layer (A)/the polarizing plate between the liquid crystal cell and the polarizing plates on both sides thereof.