High birefringence and low viscosity negative dielectric anisotropy liquid crystals

We have synthesised and evaluated the physical properties of some high birefringence, lateral difluoro-terphenyl compounds and mixtures. These mixtures exhibit a high birefringence (Δn∼0.24) in the visible spectral range and a relatively low viscosity. When doped in commercial mixtures, the difluoro...

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Bibliographic Details
Published in:Liquid crystals 2008-12, Vol.35 (12), p.1401-1408
Main Authors: Gauza, Sebastian, Jiao, Meizi, Wu, Shin-Tson, Kula, Przemysław, Dąbrowski, Roman, Liang, Xiao
Format: Article
Language:English
Subjects:
fluorinated terphenyl
high birefringence
liquid crystals
response time
vertical alignment
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Summary:We have synthesised and evaluated the physical properties of some high birefringence, lateral difluoro-terphenyl compounds and mixtures. These mixtures exhibit a high birefringence (Δn∼0.24) in the visible spectral range and a relatively low viscosity. When doped in commercial mixtures, the difluoro-terphenyl compounds enhance the mixture's birefringence while causing almost no penalty to the rotational viscosity. These mixtures are particularly attractive for achieving fast response times in thin-cell liquid crystal displays.
ISSN:0267-8292
1366-5855
DOI:10.1080/02678290802624381