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Title: Alignment of ferroelectric liquid crystals with photoanisotropic azodye aligning layers
Authors: Pozhidaev, E. P.
Chigrinov, Vladimir G.
Huang, D. D.
Kwok, Hoi-Sing
Keywords: Photo-induced alignment quality
Ferroelectric liquid crystals (FLC)
Azodye film photo-treatment
Deformed helix ferroelectric (DHF)
Issue Date: 2002
Citation: Proceedings Eurodisplay, Nice, France, 1-4 Oct. 2002, Society for Information Display, Santa Ana, CA, USA, 2002, p. 137-140
Abstract: The photo-induced alignment quality of a ferroelectric liquid crystals (FLC) onto a photochemical stable azodye film was studied for various procedures of the azodye film photo-treatment and the FLC structure. The alignment quality of FLC depends mainly on the order parameter of the azodye film, however the structure of FLC layer is also important. So, the photo-aligned deformed helix ferroelectric (DHF) liquid crystal exhibits the contrast ratio CR>500:1, while for the helix free FLC the contrast ratio CR>1500:1.
Rights: This paper is made available with permission of the Society for Information Display. One print or electronic copy may be made for personal use only. Systematic or multiple reproduction, distribution to multiple locations via electronic or other means, duplication of any material in this paper for a fee or for commercial purposes, or modification of the content of the paper are prohibited.
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