Patent ID: 6411355
Filing Date: 2002-06-25
Classification: G02F

Abstract:
A liquid crystal device comprising:a polarizer; a driving liquid crystal cell having two substrates and a liquid crystal layer held between the two substrates; and an optical anisotropic element having a first surface close to the driving liquid crystal cell and a second surface close to the polarizer, the optical anisotropic element being interposed between the polarizer and the driving liquid crystal cell, wherein the optical anisotropic element comprises a plurality of optical anisotropic units with negative optical anisotropy, each of said plurality of optical anisotropic units having an optical axis, and wherein an angle of the optical axis of each of said plurality of optical anisotropic units with respect to the first and second surfaces being varied continuously in a direction of thickness with respect to an intermediate reference plane, the intermediate reference plane being between the first and second surfaces, the optical axis of the optical anisotropic unit close to the first surface being substantially parallel to the optical axis of the optical anisotropic unit close to the second surface.