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Aligning method of liquid crystal, production process of liquid crystal device, and liquid crystal device

  • US 5,798,056 A
  • Filed: 01/31/1996
  • Issued: 08/25/1998
  • Est. Priority Date: 02/01/1995
  • Status: Expired due to Fees
First Claim
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1. An aligning method of a chiral smectic liquid crystal, comprising:

  • disposing a chiral smectic liquid crystal between a pair of electrode plates at least one of which is provided with an alignment control layer, said chiral smectic liquid crystal showing a phase transition series of isotropic phase, smectic A phase and chiral smectic phase in this order on temperature decrease; and

    subjecting said chiral smectic liquid crystal to a treatment including a cycle of the steps of heating up to a first temperature at which said liquid crystal shows isotropic phase and smectic A phase in mixture and cooling down to a second temperature at which said liquid crystal shows chiral smectic phase.

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