scholarly journals Optical, electro-optical, electrical and dielectric characterization of nematic liquid crystal (E7) layers doped with graphene nanoparticles for electro-optics

2019 ◽  
Vol 1186 ◽  
pp. 012031
Author(s):  
Y G Marinov ◽  
G B Hadjichristov ◽  
P M Rafailov ◽  
S H Lin ◽  
V M Marinova ◽  
...  
Keyword(s):  
Liquid Crystal ◽  
Nematic Liquid Crystal ◽  
Dielectric Characterization ◽  
Graphene Nanoparticles

NOISE MEASUREMENTS FOR MATERIAL DIELECTRIC CHARACTERIZATION: APPLICATION TO A LIQUID CRYSTAL

2001 ◽  
Vol 01 (03) ◽  
pp. L125-L130 ◽  
Author(s):  
LEROY GÉRARD ◽  
GEST JOËL ◽  
TABOURIER PIERRE
Keyword(s):  
Liquid Crystal ◽  
Complex Permittivity ◽  
Dielectric Material ◽  
Voltage Noise ◽  
The Real ◽  
Dielectric Characterization ◽  
Noise Measurements

In this paper, we show how noise measurements can be used for the characterization of a dielectric material. This nonperturbative technique allows the determination of the real and imaginary parts of the complex permittivity from current and voltage noise measurements. This technique is illustrated hereafter for the case of an antiferroelectric liquid crystal.

Optical Characterization of the Twisted Nematic Liquid Crystal Display

2009 ◽  
Vol 1242 ◽  
Author(s):  
Carolina Rickenstorff ◽  
A. S. Ostrovsky
Keyword(s):  
Liquid Crystal ◽  
Interference Pattern ◽  
Nematic Liquid Crystal ◽  
Phase Modulation ◽  
Liquid Crystal Display ◽  
Optical Characterization ◽  
Gray Level ◽  
Twisted Nematic ◽  
Twisted Nematic Liquid Crystal

ABSTRACTA simple optical characterization technique is developed for to find the amplitude and phase modulation modes for the twisted nematic liquid crystal display (TN-LCD). The developed technique is based on intensity and pixel shift measurements of the interference pattern obtained from the TN-LCD sandwiched between two polarizers in a modified Young's experiment. Particularly, specimen LC2002 Holoeye is characterized and its amplitude and phase modulation curves as a function of image's gray level, bright B and contrast C are presented.

The synthesis and dielectric characterization of a low temperature smectic a liquid crystal

2019 ◽  
Vol 6 (8) ◽  
pp. 085101
Author(s):  
Pinar Caglar ◽  
Hale Ocak ◽  
Nimet Yilmaz Canli ◽  
Alptekin Yildiz ◽  
Mustafa Okutan ◽  
...  
Keyword(s):  
Liquid Crystal ◽  
Low Temperature ◽  
Dielectric Characterization ◽  
Smectic A
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