Zig-zag wall lattice in a nematic liquid crystal with an in-plane switching configuration.
Phys Rev E Stat Nonlin Soft Matter Phys
; 90(2): 022504, 2014 Aug.
Article
em En
| MEDLINE
| ID: mdl-25215746
ABSTRACT
Liquid crystals displays with tailoring electrodes exhibit complex spatiotemporal dynamics when a large voltage is applied. We report experimental observations of the appearance of a programmable zig-zag lattice using an in-plane-switching cell filled with a nematic liquid crystal. Applying a small voltage to a wide range of frequencies, the system exhibits an Ising wall lattice. Increasing the voltage, this lattice presents a spatial instability generating an undulating wall lattice, and to higher voltages it becomes zig-zag type. Experimentally, we characterize the bifurcations and phase diagram of the wall lattice. Theoretically, we develop, from first principles, a descriptive model. This model has a good qualitative agreement with experimental observations.
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Tipo de estudo:
Qualitative_research
Idioma:
En
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Phys Rev E Stat Nonlin Soft Matter Phys
Ano de publicação:
2014
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Article