SID Symposium Digest of Technical Papers · 2013 · 33 citations · 8 references
Natural SciencesMaterials EngineeringMaterials ScienceCondensed Matter PhysicsOptical MaterialsThin FilmsDielectric MaterialsDielectric PropertiesDielectric ResponseDielectricsLiquid Crystal MaterialsLiquid CrystalsDielectric AnisotropyFringe AnalysisLiquid Crystal Dielectric PropertiesPolarizationSpontaneous Polarization
Abstract Orientation of liquid crystal (LC) in an on state of the fringe field switching (FFS) mode has splay and bend deformation of LC director, which might cause spontaneous polarization by LC layer itself. Existence of flexoelectric effect is confirmed by observing appearance of flickering while the device is driven by ac voltage. We have tested LC mixtures having positive dielectric anisotropy and studied flexoelectric effects dependent on frequency and temperature.
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