Surface alignment bistability of nematic liquid crystals by orientationally frustrated surface patterns

2001 ◽  
Vol 78 (20) ◽  
pp. 3055-3057 ◽  
Author(s):  
Jong-Hyun Kim ◽  
Makoto Yoneya ◽  
Jun Yamamoto ◽  
Hiroshi Yokoyama
Keyword(s):  
Liquid Crystals ◽  
Nematic Liquid Crystals ◽  
Surface Alignment ◽  
Surface Patterns

Study of surface alignment of nematic liquid crystals on polyimide Langmuir–Blodgett films

1995 ◽  
Vol 66 (14) ◽  
pp. 1753-1754 ◽  
Author(s):  
Ruipeng Sun ◽  
Jianxin Guo ◽  
Ximin Huang ◽  
Kai Ma
Keyword(s):  
Liquid Crystals ◽  
Nematic Liquid Crystals ◽  
Langmuir Blodgett ◽  
Surface Alignment ◽  
Langmuir Blodgett Films

Photo-Induced Surface Alignment Of Nematic Liquid Crystals On Polyamide-Imide Layers

1995 ◽  
Vol 413 ◽  
Author(s):  
David C. Rich ◽  
Enid K. Sichel ◽  
Peggy Cebet
Keyword(s):  
Liquid Crystal ◽  
Liquid Crystals ◽  
Ultraviolet Radiation ◽  
Short Wavelength ◽  
Optical Transmission ◽  
Nematic Liquid Crystals ◽  
Uv Exposure ◽  
Surface Alignment ◽  
Linearly Polarized ◽  
Crystal Cells

ABSTRACTA technique for producing surface-induced liquid crystal nematic alignment is presented. The alignment film is a simple, inexpensive polyamide-imide, which is treated with linearly polarized short wavelength ultraviolet radiation (λ = 254 nm). The alignment performance of UV-aligned layers is shown by optical transmission of the liquid crystal cells to be comparable to that of brushed layers. Strong alignment is produced within minutes of UV exposure and is maintained with long exposures.

Surface alignment of ferroelectric nematic liquid crystals

Soft Matter ◽  
2021 ◽  
Author(s):  
Federico Caimi ◽  
Giovanni Nava ◽  
Raouf Barboza ◽  
Noel A Clark ◽  
Eva Korblova ◽  
...  
Keyword(s):  
Liquid Crystals ◽  
Electric Fields ◽  
Nematic Liquid Crystals ◽  
Surface Alignment ◽  
Optical Applications

The success of nematic liquid crystals in displays and optical applications is due to the combination of their optical uniaxiality, fluidity, elasticity, responsiveness to electric fields and controllable coupling of...

The electrohydrodynamic instability in twisted nematic liquid crystals

1994 ◽  
Vol 4 (2) ◽  
pp. 239-252 ◽  
Author(s):  
A. Hertrich ◽  
A. P. Krekhov ◽  
O. A. Scaldin
Keyword(s):  
Liquid Crystals ◽  
Nematic Liquid Crystals ◽  
Electrohydrodynamic Instability ◽  
Twisted Nematic
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