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Title: Liquid crystal device and method thereof

Abstract

The invention provides a liquid crystal device and method thereof. Subsequent to applying a first electrical voltage on a liquid crystal to induce a reorientation of the liquid crystal, a second electrical voltage with proper polarity is applied on the liquid crystal to assist the relaxation of the reorientation that was induced by the first electrical voltage. The "switch-off" phase of the liquid crystal can therefore be accelerated or temporally shortened, and the device can exhibit better performance such as fast response to on/off signals. The invention can be widely used LCD, LC shutter, LC lens, spatial light modulator, telecommunication device, tunable filter, beam steering device, and electrically driven LC device, among others.

Inventors:
; ;
Issue Date:
Research Org.:
Kent State University (Kent, OH)
Sponsoring Org.:
USDOE
OSTI Identifier:
1079239
Patent Number(s):
8294645
Application Number:
12/403,160
Assignee:
Kent State University (Kent, OH)
Patent Classifications (CPCs):
G - PHYSICS G02 - OPTICS G02F - DEVICES OR ARRANGEMENTS, THE OPTICAL OPERATION OF WHICH IS MODIFIED BY CHANGING THE OPTICAL PROPERTIES OF THE MEDIUM OF THE DEVICES OR ARRANGEMENTS FOR THE CONTROL OF THE INTENSITY, COLOUR, PHASE, POLARISATION OR DIRECTION OF LIGHT, e.g. SWITCHING, GATING, MODULATING OR DEMODULATING
G - PHYSICS G09 - EDUCATION G09G - ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
DOE Contract Number:  
FG02-06ER46331
Resource Type:
Patent
Country of Publication:
United States
Language:
English
Subject:
47 OTHER INSTRUMENTATION

Citation Formats

Shiyanovskii, Sergij V, Gu, Mingxia, and Lavrentovich, Oleg D. Liquid crystal device and method thereof. United States: N. p., 2012. Web.
Shiyanovskii, Sergij V, Gu, Mingxia, & Lavrentovich, Oleg D. Liquid crystal device and method thereof. United States.
Shiyanovskii, Sergij V, Gu, Mingxia, and Lavrentovich, Oleg D. Tue . "Liquid crystal device and method thereof". United States. https://www.osti.gov/servlets/purl/1079239.
@article{osti_1079239,
title = {Liquid crystal device and method thereof},
author = {Shiyanovskii, Sergij V and Gu, Mingxia and Lavrentovich, Oleg D},
abstractNote = {The invention provides a liquid crystal device and method thereof. Subsequent to applying a first electrical voltage on a liquid crystal to induce a reorientation of the liquid crystal, a second electrical voltage with proper polarity is applied on the liquid crystal to assist the relaxation of the reorientation that was induced by the first electrical voltage. The "switch-off" phase of the liquid crystal can therefore be accelerated or temporally shortened, and the device can exhibit better performance such as fast response to on/off signals. The invention can be widely used LCD, LC shutter, LC lens, spatial light modulator, telecommunication device, tunable filter, beam steering device, and electrically driven LC device, among others.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {2012},
month = {10}
}

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Works referenced in this record:

Dielectric Torque and Orientation Dynamics of Liquid Crystals with Dielectric Dispersion
journal, August 2005


Effects of dielectric relaxation on the director dynamics of uniaxial nematic liquid crystals
journal, December 2007


Directed vertical alignment liquid crystal display with fast switching
journal, February 2006


Pulsed addressing of a dual-frequency nematic liquid crystal
journal, September 2006


Levitation, Lift, and Bidirectional Motion of Colloidal Particles in an Electrically Driven Nematic Liquid Crystal
journal, September 2007