Journal ArticleDOI
Tristable Switching in Surface Stabilized Ferroelectric Liquid Crystals with a Large Spontaneous Polarization
TLDR
In this paper, a new switching process was observed in surface stabilized ferroelectric liquid crystals, associated with a third stable state in addition to the well-known bistable states.Abstract:
A new switching process was observed in surface stabilized ferroelectric liquid crystals. The switching is associated with a third stable state in addition to the well-known bistable states. The appearance of the third state is characteristic of materials with a large spontaneous polarization and is caused by minimizing induced polarization charges. The switching between each bistable state and the third state exhibits a sharp dc-threshold and hysteresis, suggesting a possible application for a switching device.read more
Citations
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Journal ArticleDOI
Antiferroelectric Chiral Smectic Phases Responsible for the Trislable Switching in MHPOBC
TL;DR: The antiferroelectric structure was strongly supported by selective reflections in oblique incidence; a full-pitch band does not appear in the antiferrous liquid crystalline phases, while it does appears in the ferroelectric phase as discussed by the authors.
Journal ArticleDOI
Liquid crystal materials and liquid crystal displays
TL;DR: In this article, a review of liquid crystal material properties and electro-optical effects that essentially determine the performance of twisted nematic displays are reviewed, including dual-frequency addressing phenomena in liquid crystal materials, in situ dielectric heating of displays, and conductivity phenomena that may either hamper or improve performance of high information content LCDs.
Journal ArticleDOI
Novel Phases Exhibiting Tristable Switching
A. D. L. Chandani,Yukio Ouchi,Hideo Takezoe,Atsuo Fukuda,Kanetsugu Terashima,Kenji Furukawa,Akira Kishi +6 more
TL;DR: In this article, the phase transition from Sm C* to Sm CA* is not observable by AC calorimetry but small peaks comparable to the Sm A-Sm C* transition are discernible in DSC.
Journal ArticleDOI
Current topics in smectic liquid crystal research.
TL;DR: This Review discusses some of the topics of highest interest in current smectic liquid crystal research, and address application-relevant research (de Vries-type tilting transitions without defect generation and high-tilt antiferroelectric liquid crystals with perfect dark state) as well as more curiosity-driven research.
Patent
Chiral smectic liquid crystal optical modulators having variable retardation
TL;DR: In this paper, the authors present optical modulators which consist of aligned chiral smectic liquid crystal cells within an optical resonance cavity, where the cavity configurations include symmetric and asymmetric Fabry-Perot etalons.
References
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Journal ArticleDOI
"Chevron" local layer structure in surface-stabilized ferroelectric smectic-C cells.
T. P. Rieker,Noel A. Clark,G. S. Smith,G. S. Smith,Devendra S. Parmar,Eric B. Sirota,Cyrus R. Safinya +6 more
TL;DR: Mise en evidence de the structure par des etudes de diffusion de rayons X haute resolution d'echantillons minces smectiques C prepares entre deux lames solides par refroidissement a partir de the phase smectique A.
Journal Article
Relation between Spontaneous Polarization and Rotational Viscosity in Enantiomeric Mixtures of Ferroelectric Liquid Crystals : Condensed Matter
TL;DR: In this article, the rotational viscosity of the C-director was measured in two series of mixtures of L- and D-enantiomers of ferroelectric liquid crystals.
Journal ArticleDOI
Relation between Spontaneous Polarization and Rotational Viscosity in Enantiomeric Mixtures of Ferroelectric Liquid Crystals
TL;DR: In this article, the rotational viscosity of the C-director was measured in two series of mixtures of L- and D-enantiomers of ferroelectric liquid crystals.
Journal ArticleDOI
Dispersion Relation of Optical Eigen Modes in Chiral Smectic C by 4×4 Matrix Method
TL;DR: In this paper, the dispersion relations of optical eigen modes (OEM's) in Sm C* are calculated by the 4×4 matrix method, where the first order reflection region consists of only a total reflection region.
Journal ArticleDOI
Two Kinds of Boundary Motions in Thin Ferroelectric Smectic C* Liquid Crystals
TL;DR: In this paper, the switching process in thin ferroelectric liquid crystal cells under low frequency triangular wave was studied and it was pointed out that there exist three switching processes which are classified into two kinds of boundary motions.