Liquid Crystal Actuator Using Nematic π-Cell
Yoshitaka Mieda and Katsushi Furutani
Department of Advanced Science and Technology, Toyota Technological Institute, 12-1 Hisakata 2-chome, Tempaku-ku, Nagoya 468-8511, Japan
We propose a liquid crystal actuator using the backflow effect in the nematic π-cell in which a unidirectional flow is generated after the electric field is removed. Applying rectangular AC voltage continuously drives dispersed objects in the π-cell in the direction of rubbing. Using this actuator, we drive microspheres and a film. The drive velocity of dispersed objects depends on the amplitude and frequency of applied voltage.
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