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Molecular Crystals and Liquid Crystals Volume 561, 2012 - Issue 1: Proceedings of the 14th International Topical Meeting: Optics of Liquid Crystals (OLC 2011): Part III of III
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Original Articles

Optimizing of Control Signal Shape for Improving of Time Characteristics of Liquid Crystal Based Devices

H. L. Margaryan Yerevan State University, Yerevan, Armenia
,
N. H. Hakobyan Yerevan State University, Yerevan, Armenia
,
D. L. Hovhannisyan Yerevan State University, Yerevan, Armenia
,
V. K. Abrahamyan Yerevan State University, Yerevan, Armenia
,
D. K. Pokhsraryan Yerevan State University, Yerevan, Armenia
&
S. R. Manucharyan Yerevan State University, Yerevan, Armenia
Pages 170-176 | Published online: 13 Jun 2012
 
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Abstract

The dynamics of reorientation processes of planar oriented nematic liquid crystals can be controlled and improved by 1 kHz continuous, as well as pulsed, auxiliary electric fields. A device and a special software for forming a control signal of complex shape are created. We show that using a four-step control signal for optical switching allows fivefold reduction of switching time compared to conventional two-step signal.

Acknowledgment

The work is fulfilled in the framework of ISTC Project A-1484.

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