Abstract
SSD-liquid crystal panels’ retardation switching dynamic behaviors have been investigated from their in-plane and out-of-plane retardation switching behaviors. In-plane-only and a mixture between in-plane and out-of-plane retardation switching behaviors are highly related to the initial smectic liquid crystal molecular stacking configurations. With uniformly stacked configuration, a completely symmetric retardation switching, as well as light throughput behavior, was obtained. With a slight twisted stacking configuration, the retardation switching behavior is dependent on the applied electric field strength, which may change the initial molecular stacking configuration, resulting in either symmetric or asymmetric retardation switching. When the molecular stacking has twisted heavily, the obtained retardation switching showed asymmetric behavior regardless of the applied electric field strength.
Highlights
A smectic single domain (SSD) liquid crystal mode shows some unique electro-optic dynamic behaviors, including in-plane-only retardation switching [1]
Smectic Single Domain-Liquid Crystal (SSD-LC) molecular switching dynamics have been discussed in terms of initial molecular stacking configuration
When the expected smectic liquid crystal molecular stacking is uniform, the liquid crystal molecular switching is in the same plane as where the liquid crystal molecules initially aligned
Summary
A smectic single domain (SSD) liquid crystal mode shows some unique electro-optic dynamic behaviors, including in-plane-only retardation switching [1]. Studies limited to the faster optical response performance of several liquid crystal driving modes have been carried out, including surface-stabilized ferroelectric liquid crystals (SSFLCs) [4,5], DeVries type of smectic A phase liquid crystals [6,7,8,9,10], antiferroelectric liquid crystals (AFLCs) [11,12,13], distorted helix ferroelectric liquid crystals (DH-FLCs) [14,15], flexo-electric liquid crystals [16,17,18,19], some different types of blue phase liquid crystals [20,21], and so on Most of these faster optical response liquid crystal drive modes, show both in-plane and out-of-plane retardation switching at their switching process. To clarify the relationship between retardation switching dynamics and an initial liquid crystal molecular stacking configuration, some optical measurement approaches have been investigated to distinguish in-plane and out-of-plane retardation switching
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