| 摘要 |
An liquid crystal apparatus, includes: (a) a liquid crystal device including: a pair of substrates each provided with a uniaxial alignment axis, and a chiral smectic liquid crystal having a negative dielectric anisotropy disposed between the pair of substrates and capable of forming a higher-temperature bistable alignment state and a lower-temperature bistable alignment state in its chiral smectic C phase, the chiral smectic liquid crystal being further placed in the lower-temperature bistable alignment state formed by cooling from the higher-temperature bistable alignment state; and (b) voltage application means including: an AC voltage application means for applying to the chiral smectic liquid crystal an AC voltage insufficient to cause a switching from one to the other or from the other to one of the bistable alignment state, and a switching voltage application means for applying to the chiral smectic liquid crystal a voltage of one polarity sufficient to cause a switching from one to the other of the bistable alignment state and a voltage of the other polarity sufficient to cause a switching from the other to one of the bistable alignment state.
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