| 摘要 |
PROBLEM TO BE SOLVED: To provide excellent optical performance such as a high contrast, a wide viewing angle, achromatic appearance. SOLUTION: The bistable twisted nematic cell 1 with excellent performance is equipped with a front side polarizing plate 2, a rear side polarizing plate 6, substrates 3, 5 and a liquid crystal layer 4 held between the substrates 3, 5. A front rubbing direction 7 and a back rubbing direction 8 are determined so as to provide a specified twist angle 9 of the liquid crystal. In the construction of the cell 1 an initial twist angle is an angle other than 180 deg. and an angle fixed between the two polarizing plates 2, 6 with respect to each other is an angle other than 90 deg.. Furthermore, the initial twist angle of the liquid crystal is an angle other than any multiple of 90 deg. and the angle fixed between the two polarizing plates 2, 6 with respect to each other is the angle other than 90 deg.. |
