Patent ID: 6081312
Filing Date: 2000-06-27
Classification: G02B,G02F

Abstract:
A liquid crystal display comprising a liquid crystal cell of a vertical alignment mode, two optical compensatory sheets arranged on both sides of the liquid crystal cell and two polarizing elements arranged on the optical compensatory sheets, said liquid crystal cell containing liquid crystal molecules, which are essentially vertically aligned while not applying voltage to the cell, and are essentially horizontally aligned while applying voltage to the cell,wherein each of the optical compensatory sheets comprises a transparent substrate and an optically anisotropic layer containing a discotic compound, said optically anisotropic layer having an optical anisotropy to optically compensate an optical anisotropy of the liquid crystal cell while applying voltage to the cell, and each of said optical compensatory sheets having a retardation value in plane in the range of -5 to 5 nm.