A method to produce reverse-mode polymer-dispersed liquid-crystal shutters

1999 ◽  
Vol 74 (26) ◽  
pp. 3945-3947 ◽  
Author(s):  
F. P. Nicoletta ◽  
G. De Filpo ◽  
J. Lanzo ◽  
G. Chidichimo
Keyword(s):  
Liquid Crystal ◽  
Polymer Dispersed Liquid Crystal ◽  
Reverse Mode ◽  
Polymer Dispersed

Photochromic Behavior of a Spiro-indolino-oxazine in Reverse-Mode Polymer-Dispersed Liquid Crystal Films

2002 ◽  
Vol 106 (37) ◽  
pp. 9490-9495 ◽  
Author(s):  
A. Romani ◽  
G. Chidichimo ◽  
P. Formoso ◽  
S. Manfredi ◽  
G. Favaro ◽  
...  
Keyword(s):  
Liquid Crystal ◽  
Photochromic Behavior ◽  
Liquid Crystal Films ◽  
Polymer Dispersed Liquid Crystal ◽  
Reverse Mode ◽  
Crystal Films ◽  
Polymer Dispersed

Preparation and Optical Properties of a Reverse-Mode Polymer Dispersed Liquid Crystal Film

1992 ◽  
Vol 277 ◽  
Author(s):  
Tomohisa Gotoh ◽  
Hideya Murai ◽  
Etsuo Hasegawa ◽  
Katsuhiro Mizoguchi
Keyword(s):  
Liquid Crystal ◽  
Porous Polymer ◽  
Dielectric Anisotropy ◽  
Distinct Advantage ◽  
Dual Frequency ◽  
Uv Curable ◽  
Polymer Dispersed Liquid Crystal ◽  
Reverse Mode ◽  
Polymer Dispersed ◽  
Substitution Type

ABSTRACTTwo new types of reverse-mode polymer-dispersed liquid crystal films have been developed and successfully produced. The first was produced by UV-curing of a mixture of dual frequency addressable liquid crystal (DFALC) and UV-curable polymers under an applied voltage at a frequency lower than the crossover frequency (fc) of the DFALC. This first type is referred to as a dual frequency type. The second type was produced by injecting a liquid crystal having negative dielectric anisotropy into a specially prepared porous polymer film from which liquid crystal having positive dielectric anisotropy had previously been extracted. The type thus produced through such “negative-for-positive” substitution is referred to as a substitution type. While the dual frequency type can not be driven at a low frequency, substitution type can, which gives it a distinct advantage. Other electro-optic characteristics of the two types of films, including alignment properties of the liquid crystal molecules, are also discussed.

Reverse mode operation polymer dispersed liquid crystal with a positive dielectric anisotropy liquid crystal

2010 ◽  
Vol 49 (4) ◽  
pp. 257-262 ◽  
Author(s):  
Daniela Cupelli ◽  
Fiore P. Nicoletta ◽  
Giovanni De Filpo ◽  
Patrizia Formoso ◽  
Giuseppe Chidichimo
Keyword(s):  
Liquid Crystal ◽  
Dielectric Anisotropy ◽  
Polymer Dispersed Liquid Crystal ◽  
Mode Operation ◽  
Reverse Mode ◽  
Polymer Dispersed

Fabrication Process of a Reverse Mode Polymer-Dispersed Liquid Crystal using UV Curing

2019 ◽  
Vol 23 (1) ◽  
Author(s):  
R. Martínez Martínez ◽  
Yun-Han Lee ◽  
Ma. Rosario Pastrana Sánchez ◽  
José Javier Sánchez-Mondragón ◽  
Shin-Tson Wu
Keyword(s):  
Liquid Crystal ◽  
Uv Curing ◽  
Fabrication Process ◽  
Polymer Dispersed Liquid Crystal ◽  
Reverse Mode ◽  
Polymer Dispersed

Surfactant-doped reverse-mode polymer-dispersed liquid crystal display with enhanced properties

2015 ◽  
Vol 43 (2) ◽  
pp. 162-167 ◽  
Author(s):  
Farzana Ahmad ◽  
Muhammad Jamil ◽  
Jin Woo Lee ◽  
Gwon Neung Jang ◽  
Young Jae Jeon
Keyword(s):  
Liquid Crystal ◽  
Liquid Crystal Display ◽  
Polymer Dispersed Liquid Crystal ◽  
Reverse Mode ◽  
Polymer Dispersed ◽  
Enhanced Properties
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