| 摘要 |
PURPOSE:To eliminate parallax and to provide high fineness, high contrast and high display grade, low dependency of a contrast on visual angles and lowered driving voltage. CONSTITUTION:The delay phase axis of a substrate 14 having an optical phase compensation function and the direction of the director of the liquid crystal molecules of a liquid crystal display cell are held in a nearly orthogonal state. The value of ¦DELTAn1d1-DELTAn2d2¦/lambda is changed by the electric field impressed to a liquid crystal layer 13 in such a manner that a light shielding state is attained when the retardation DELTAn1d1 of the liquid crystal cell, the retardation DELTAn2d2 of the substrate 14 having the optical phase compensation function and the wavelength lambda of incident light 28 satisfy ¦DELTAn1d1-n2d2¦/lambda=0.25+m/2+ or -01(m=0, 1, 2) and that a light transmission state is attained when ¦DELTAn1d1-DELTAn2d2¦/lambda=m'/2+ or -0.1(m'=0, 1, 2) is satisfied. The display is made by using the two states of the light shielding state and the light transmission state. The absorption axis or transmission axis of the polarizer is set at 30 to 60 deg. with the director directions of the liquid crystal molecules of the liquid crystal cell. |
