Analysis of dichroic dye-doped polymer-dispersed liquid crystal materials for display devices

2011 ◽  
Vol 520 (1) ◽  
pp. 457-463 ◽  
Author(s):  
Pankaj Kumar ◽  
Neeraj ◽  
Shin-Woong Kang ◽  
Seung Hee Lee ◽  
K.K. Raina
Keyword(s):  
Liquid Crystal ◽  
Display Devices ◽  
Polymer Dispersed Liquid Crystal ◽  
Dichroic Dye ◽  
Polymer Dispersed ◽  
Doped Polymer ◽  
Liquid Crystal Materials

scholarly journals Polymer Dispersed Cholesteric Liquid Crystals With a Toroidal Director Configuration under an Electric Field

Polymers ◽  
2021 ◽  
Vol 13 (5) ◽  
pp. 732
Author(s):  
Anna P. Gardymova ◽  
Mikhail N. Krakhalev ◽  
Victor Ya. Zyryanov ◽  
Alexandra A. Gruzdenko ◽  
Andrey A. Alekseev ◽  
...  
Keyword(s):  
Optical Properties ◽  
Liquid Crystal ◽  
Electric Field ◽  
Point Defects ◽  
Structural Response ◽  
Optical Filters ◽  
Response Curves ◽  
Polymer Dispersed Liquid Crystal ◽  
Dichroic Dye ◽  
Polymer Dispersed

The electro-optical properties of polymer dispersed liquid crystal (PDLC) films are highly dependent on the features of the contained liquid crystal (LC) droplets. Cholesteric LC droplets with homeotropic boundaries can form several topologically different orientational structures, including ones with single and more point defects, layer-like, and axisymmetric twisted toroidal structures. These structures are very sensitive to an applied electric field. In this work, we have demonstrated experimentally and by computer simulations that twisted toroidal droplets reveal strong structural response to the electric field. In turn, this leads to vivid changes in the optical texture in crossed polarizers. The response of droplets of different sizes were found to be equivalent in terms of dimensionless parameters. In addition, the explanation of this phenomenon showed a comparison of theoretical and experimental structural response curves aids to determine the shape of the droplet. Finally, we demonstrated that the addition of a dichroic dye allows such films to be used as optical filters with adjustable color even without polarizers.

scholarly journals Low switching voltage ZnO quantum dots doped polymer-dispersed liquid crystal film

2016 ◽  
Vol 24 (7) ◽  
pp. 7063 ◽  
Author(s):  
Chuan-Chun Hsu ◽  
Yi-Xuan Chen ◽  
Hui-Wen Li ◽  
Jy-shan Hsu
Keyword(s):  
Quantum Dots ◽  
Liquid Crystal ◽  
Switching Voltage ◽  
Polymer Dispersed Liquid Crystal ◽  
Crystal Film ◽  
Polymer Dispersed ◽  
Zno Quantum Dots ◽  
Doped Polymer

Random lasing in dye-doped polymer dispersed liquid crystal film

2016 ◽  
Vol 25 (9) ◽  
pp. 094209 ◽  
Author(s):  
Rina Wu ◽  
Rui-xin Shi ◽  
Xiaojiao Wu ◽  
Jie Wu ◽  
Qin Dai
Keyword(s):  
Liquid Crystal ◽  
Random Lasing ◽  
Polymer Dispersed Liquid Crystal ◽  
Crystal Film ◽  
Polymer Dispersed ◽  
Doped Polymer

Contrast enhancement in double-layered dye-doped polymer-dispersed liquid-crystal cells

2007 ◽  
Vol 102 (1) ◽  
pp. 014502 ◽  
Author(s):  
Elizabeth Scherschener ◽  
Enrique A. Dalchiele ◽  
Erna M. Frins ◽  
César D. Perciante ◽  
José A. Ferrari
Keyword(s):  
Liquid Crystal ◽  
Contrast Enhancement ◽  
Polymer Dispersed Liquid Crystal ◽  
Polymer Dispersed ◽  
Crystal Cells ◽  
Doped Polymer

Cholesterol-oleate-doped polymer-dispersed liquid-crystal voltage-controlled ring projector

2002 ◽  
Vol 27 (12) ◽  
pp. 1022 ◽  
Author(s):  
A. Olivares-Pérez ◽  
M. Pérez-Cortéz ◽  
J. L. Juárez-Pérez ◽  
C. G. Treviño-Palacios
Keyword(s):  
Liquid Crystal ◽  
Polymer Dispersed Liquid Crystal ◽  
Polymer Dispersed ◽  
Doped Polymer
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