| 摘要 |
PURPOSE:To improve the contrast of a ferroelectric liquid crystal for which an org. oriented film is used when said cell is used as an optical shutter by using the oriented layer formed by projecting an ion beam from a diagonal direction on the org. oriented film subjected to a rubbing treatment, thereby increasing the apparent tilt angle thereof. CONSTITUTION:Transparent electrode 3 are patterned and formed on a glass substrate 2 which supports the liquid crystal, then an SiO2 film is formed by a sputtering method on the transparent electrodes 3. After polyimide is spin- coated on the SiO2 film, the coating is calcined to form the org. oriented film and the org. oriented film is subjected thereupon to the uniaxial orientation treatment by rubbing using an acetate cloth; thereafter, the ion beam is projected on the org. oriented film from the diagonal direction to form the oriented layer 4. The apparent tilt angle of the cell is increased if the cell is produced by disposing two sheets of the resultant substrates 2 to face each other in such a manner that the rubbing directions with the upper and lower substrates are reversed from each other. The contrast when the cell is used as the optical shutter is thereby improved. |
