OPTICAL COMPENSATION SHEET, ELLIPTICALLY POLARIZING PLATE AND LIQUID CRYSTAL DISPLAY DEVICE

摘要

PROBLEM TO BE SOLVED: To provide an optical compensation sheet of which the only one sheet easily improves viewing angle characteristics, namely, phenomena of screen coloring and reversal between light and shade observed by viewing from oblique directions and further a liquid crystal display device with the improved viewing angle characteristics by utilizing the same. SOLUTION: The optical compensation sheet having optically anisotropic layers on a supporting body, is characterized by having a layer in which liquid crystalline compounds are aligned so as to make angles between optic axes of liquid crystalline compounds and the surface of the optical compensation sheet continuously or stepwise increase with respect to the thickness direction of the optical compensation sheet and a layer in which the liquid crystalline compounds are aligned so as to make the angles continuously or stepwise decrease and further the two layers are arranged so as to make alignment directions of the liquid crystalline compounds in the surface mutually intersect with 80-100 deg. angle.