Process for controlling layer spacing in mixtures of smectic liq

Details Process for controlling layer spacing in mixtures of smectic liq Process for controlling layer spacing in mixtures of smectic liq

1994-04-11

1995-05-23

Wu, Shean

Compositions

Liquid crystal compositions

359 99, 359100, C09K 1752, G02F 113

Patent

active

054178835

ABSTRACT:
A process for controlling layer spacing in mixtures of smectic liquid crystal compounds comprises the step of combining a liquid crystal composition having a net negative thermal layer expansion in at least one tilted (or latent tilted) smectic mesophase and a liquid crystal composition having a net positive thermal layer expansion in at least one tilted (or latent tilted) smectic mesophase, each of the compositions comprising at least one smectic or latent smectic liquid crystal compound. The process enables control of layer spacing in the tilted smectic mesophase(s) and thereby control or suppression of chevron layer geometry.

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