| 摘要 |
<p>PURPOSE:To improve storing efficiency by applying two-way orientation processing to the surface of an electrode substrate in accordance with the orientation direction of liquid crystal molecules at the impression of an one-way electric field to a liquid crystal cell and the of liquid crystal molecules at the impression of a reverse electric field. CONSTITUTION:A PVA is applied as an orientation film and the surface of an electrode substrate P1 is rubbed in two directions 1, 2 forming 45 deg. angle which is almost twice a tile angle and the surface of an electrode substrate P2 is rubbed in the intermediate direction 3 between the two directions 1, 2 to produce a liquid crystal cell by orientation processing. Ferrodielectric liquid crystal is injected into the cell, and while impressing an AC electric field, the temperature of the liquid crystal is gradually cooled from its isotropic liquid state down to the temperature of a chiral smetic C-phase. When an electric field is impressed to the cell while keeping it at 85 deg.C, the liquid crystal molecules are orientated along the 45 deg. rubbing direction in accordance with the direction E of the impressed electric field. Thereby, the polarizing axis of one polarizing plate is made to coincide with one rubbing direction out of the 45 deg. rubbing directions and the polarizing axis of the other polarizing plate is arranged rectangularly to the former polarizing axis to attain multi-digit driving. Thus, the storing efficiency can be improved and high contrast display can be attained.</p> |
