P-94: Polymer Cholesteric Liquid Crystal Flakes for Particle Displays

2003 ◽  
Vol 34 (1) ◽  
pp. 581
Author(s):  
Tanya Z. Kosc ◽  
Ken L. Marshall ◽  
Stephen D. Jacobs
Keyword(s):  
Liquid Crystal ◽  
Cholesteric Liquid Crystal ◽  
Liquid Crystal Flakes

scholarly journals Optimized Soft Lithography Method for Polymer Cholesteric Liquid Crystal Flakes Fabrication

Micromachines ◽  
2019 ◽  
Vol 10 (7) ◽  
pp. 441 ◽  
Author(s):  
Guanqing Zhou ◽  
Sunqian Liu ◽  
Wei Liu ◽  
Dong Yuan ◽  
Guofu Zhou
Keyword(s):  
Optical Properties ◽  
Liquid Crystal ◽  
Polyvinyl Alcohol ◽  
Soft Lithography ◽  
Cholesteric Liquid Crystal ◽  
Release Time ◽  
Pdms Mold ◽  
Speed Up ◽  
Liquid Crystal Flakes

Polymer cholesteric liquid crystal (PCLC) flakes are gaining increasing interest for a wide variety of applications because of their unique optical properties and capabilities. Soft lithography is the most effective way to fabricate regularly shaped PCLC flakes. However, it is not easy to peel the flakes from the mold without breaking them. In order to peel the PCLC flakes from the patterned polydimethylsiloxane (PDMS) mold in a convenient way, in this paper, a method of coating a layer of polyvinyl alcohol (PVA) on a PDMS mold was proposed. The influence of the thickness of the PVA layer on the shape of the PCLC flakes and the release time from the PDMS mold were investigated. The results show that the presence of the PVA layer can speed up the release of the PCLC flakes and help maintain the shape effectively. Notably, the utilization of a PVA layer makes the PDMS mold recyclable. The influence of PCLC flake shape was also studied. This work will promote the development of switchable PCLC flake-based technologies.

Motion of doped-polymer-cholesteric liquid crystal flakes in a direct-current electric field

2008 ◽  
Vol 103 (9) ◽  
pp. 094907 ◽  
Author(s):  
A. Trajkovska Petkoska ◽  
T. Z. Kosc ◽  
K. L. Marshall ◽  
K. Hasman ◽  
S. D. Jacobs
Keyword(s):  
Liquid Crystal ◽  
Electric Field ◽  
Direct Current ◽  
Cholesteric Liquid Crystal ◽  
Direct Current Electric Field ◽  
Liquid Crystal Flakes ◽  
Doped Polymer ◽  
Current Electric Field

Effect of Different Dopants on Polymer Cholesteric Liquid Crystal Flakes

2008 ◽  
Vol 495 (1) ◽  
pp. 334/[686]-347/[699] ◽  
Author(s):  
Anka Trajkovska Petkoska ◽  
Stephen D. Jacobs
Keyword(s):  
Liquid Crystal ◽  
Cholesteric Liquid Crystal ◽  
Liquid Crystal Flakes

Enhanced Electro-Optic Behavior for Shaped Polymer Cholesteric Liquid-Crystal Flakes Made Using Soft Lithography

2005 ◽  
Vol 15 (2) ◽  
pp. 217-222 ◽  
Author(s):  
A. Trajkovska-Petkoska ◽  
R. Varshneya ◽  
T. Z. Kosc ◽  
K. L. Marshall ◽  
S. D. Jacobs
Keyword(s):  
Liquid Crystal ◽  
Soft Lithography ◽  
Cholesteric Liquid Crystal ◽  
Electro Optic ◽  
Liquid Crystal Flakes

Modeling the effects of microencapsulation on the electro-optic behavior of polymer cholesteric liquid crystal flakes

2009 ◽  
Vol 106 (12) ◽  
pp. 124911 ◽  
Author(s):  
G. P. Cox ◽  
K. L. Marshall ◽  
J. C. Lambropoulos ◽  
M. Leitch ◽  
C. Fromen ◽  
...  
Keyword(s):  
Liquid Crystal ◽  
Cholesteric Liquid Crystal ◽  
Electro Optic ◽  
Liquid Crystal Flakes

Progress in the development of polymer cholesteric liquid crystal flakes for display applications

Displays ◽  
2004 ◽  
Vol 25 (5) ◽  
pp. 171-176 ◽  
Author(s):  
T.Z. Kosc ◽  
K.L. Marshall ◽  
Anka Trajkovska-Petkoska ◽  
Erin Kimball ◽  
S.D. Jacobs
Keyword(s):  
Liquid Crystal ◽  
Cholesteric Liquid Crystal ◽  
Liquid Crystal Flakes

Electric-field-induced motion of polymer cholesteric liquid-crystal flakes in a moderately conductive fluid

2002 ◽  
Vol 41 (25) ◽  
pp. 5362 ◽  
Author(s):  
Tanya Z. Kosc ◽  
Kenneth L. Marshall ◽  
Stephen D. Jacobs ◽  
John C. Lambropoulos ◽  
Sadeg M. Faris
Keyword(s):  
Liquid Crystal ◽  
Electric Field ◽  
Cholesteric Liquid Crystal ◽  
Conductive Fluid ◽  
Induced Motion ◽  
Liquid Crystal Flakes
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