抄録
The voltage and angular dependences of the transmittance of nematic liquid crystal cell with a pretilt angle have been studied both experimentally and theoretically from the physical aspects of color. The cell with a pretilt angle was made by rubbing or by slant evaporating SiO at an incident angle of 85° from the substrate normal. The 4×4-matrix method by Ber-reman was used to determine the pretilt angle of nematic liquid crystal directors at the surface of the electrode. A nematic liquid crystal with a positive dielectric anisotropy (Δε>0) was used. Colorimetric data were shown on the UCS chromaticity diagram and various color informations are discussed.