scholarly journals Vertical alignment of liquid crystals on plant-based vanillin derivative-substituted polystyrene films

RSC Advances ◽  
2019 ◽  
Vol 9 (25) ◽  
pp. 14188-14193 ◽  
Author(s):  
Changha Ju ◽  
Chanhyuk Park ◽  
Taehyung Kim ◽  
Hyo Kang
Keyword(s):  
Liquid Crystal ◽  
Liquid Crystals ◽  
Vertical Alignment ◽  
Liquid Crystal Alignment ◽  
Crystal Alignment

Plant-based and renewable vanillin substituted polystyrene series are synthesized in order to investigate their liquid crystal alignment properties.

Liquid crystal alignment in cylindrical microcapillaries

2012 ◽  
Vol 20 (1) ◽  
Author(s):  
M. Chychłowski ◽  
O. Yaroshchuk ◽  
R. Kravchuk ◽  
T. Woliński
Keyword(s):  
Liquid Crystal ◽  
Liquid Crystals ◽  
Photonic Crystal ◽  
Boundary Conditions ◽  
Photonic Crystal Fibers ◽  
Optical Devices ◽  
Liquid Crystal Alignment ◽  
Disclination Line ◽  
Crystal Alignment ◽  
Crystal Fibers

AbstractA variety of alignment configurations of liquid crystals (LCs) inside the glassy cylindrical capillaries is realized by using alignment materials providing different anchoring. The radial configuration with central disclination line is obtained for homeotropic boundary conditions. In turn, the axial, transversal and tilted alignment structures are realized by using materials for planar anchoring. The uniformity and controlling of the latter structures were provided by photoalignment method. This approach can be further used to control LC alignment in the photonic crystal fibers recognized as advanced elements for different optical devices.

Aging of Liquid Crystal Alignment on Plasma Beam Treated Substrates: Choice of Alignment Materials and Liquid Crystals

2007 ◽  
Vol 479 (1) ◽  
pp. 111/[1149]-120/[1158] ◽  
Author(s):  
O. Yaroshchuk ◽  
R. Kravchuk ◽  
L. Dolgov ◽  
A. Dobrovolskyy ◽  
N. Klyui ◽  
...  
Keyword(s):  
Liquid Crystal ◽  
Liquid Crystals ◽  
Plasma Beam ◽  
Liquid Crystal Alignment ◽  
Crystal Alignment

Liquid Crystal Alignment and Electrooptical Characteristics of Vertical Alignment Liquid Crystal Display on SiOxThin Film Obliquely Deposited by Sputtering

2006 ◽  
Vol 45 (No. 48) ◽  
pp. L1280-L1282 ◽  
Author(s):  
Sung-Ho Choi ◽  
Jeoung-Yeon Hwang ◽  
Sungyeon Kim ◽  
Byeong-Yun Oh ◽  
Jae-Min Myoung ◽  
...  
Keyword(s):  
Liquid Crystal ◽  
Liquid Crystal Display ◽  
Vertical Alignment ◽  
Liquid Crystal Alignment ◽  
Crystal Alignment

Mechanisms Of Liquid Crystal Alignment On Buffed Polyimide Surfaces

1994 ◽  
Vol 345 ◽  
Author(s):  
Hirotsugu Kikuchi ◽  
J. A. Logan ◽  
Do Y. Yoon
Keyword(s):  
Liquid Crystal ◽  
Liquid Crystals ◽  
Amic Acid ◽  
Polymer Chains ◽  
Polymer Surfaces ◽  
Polyimide Films ◽  
Force Microscopy ◽  
Liquid Crystal Alignment ◽  
Smectic C ◽  
Crystal Alignment

AbstractThe surfaces of poly(amic acid) and cured polyimide films, subjected to different buffing and cure profiles, have been examined by atomic force microscopy (AFM). The ability of these buffed polymer surfaces to align nematic and chiral smectic C liquid crystals were also investigated. These studies show that the presence of microgrooves on buffed polymer surfaces are not necessary for alignment of liquid crystals. Rather, it is concluded that the liquid crystal alignment is mainly caused by the anisotropic intermolecular interactions between liquid crystal molecules and the polymer chains oriented by buffing. For the alignment of smectics, both the degree of order and mechanical properties of polyimide films are found to be important factors.

Orthogonal Liquid Crystal Alignment Layer: Templating Speed-Dependent Orientation of Chromonic Liquid Crystals

2017 ◽  
Vol 9 (21) ◽  
pp. 18355-18361 ◽  
Author(s):  
Yun Jeong Cha ◽  
Min-Jun Gim ◽  
Hyungju Ahn ◽  
Tae Joo Shin ◽  
Joonwoo Jeong ◽  
...  
Keyword(s):  
Liquid Crystal ◽  
Liquid Crystals ◽  
Alignment Layer ◽  
Liquid Crystal Alignment ◽  
Crystal Alignment

Bistable liquid crystal device fabricated via microscale liquid crystal alignment

2016 ◽  
Vol 120 (14) ◽  
pp. 143105 ◽  
Author(s):  
Michinori Honma ◽  
Wataru Toyoshima ◽  
Toshiaki Nose
Keyword(s):  
Liquid Crystal ◽  
Liquid Crystal Device ◽  
Liquid Crystal Alignment ◽  
Crystal Alignment
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