A Driven Voltage-Controlled Reversible Electrooptic Effect in a Smectic A Phase II. PVA Anchoring
作者:
H.P. Hinov,
K. Avramova,
期刊:
Liquid Crystals
(Taylor Available online 1988)
卷期:
Volume 3,
issue 11
页码: 1505-1514
ISSN:0267-8292
年代: 1988
DOI:10.1080/02678298808086690
出版商: Taylor & Francis Group
数据来源: Taylor
摘要:
The driven voltage-controlled reversible electrooptic effect in a smectic A phase with a preceding nematic phase twisted by SiO anchoring, previously discovered (cf. the previous paper) has been studied with polyvinyl alcohol (PVA) anchoring. The unique feature of this novel electrooptic effect in smectic A phases is that it reverses by relaxing when the electric field is removed. For the case of PVA anchoring the reversibility of the effect only occurs near the smectic A-nematic phase transition in the smectic A phase. The temperature region of the reversibility of this effect can be widened with a higher voltage. A comparison with the case of a reversible electrooptic effect in a smectic A with a preceding twisted nematic phase and SiO anchoring is made. The possible application of this electrooptic effect in liquid crystal displays with storage is discussed briefly.
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