Thermo-reversible liquid-crystal gels : towards a new processing route for twisted nematic displays

R.H.C. Janssen, V. Stumpflen, C.W.M. Bastiaansen, D.J. Broer, T.A. Tervoort, P. Smith

Research output: Contribution to journalArticleAcademicpeer-review

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Abstract

Thermo-reversible gels of the liq.-crystal system LC-TL 213 with 12-hydroxyoctadecanoic acid (HOA) were cast in a twisted nematic (TN) configuration that is switchable by a.c. elec. fields. Crit. in this process was to choose a processing temp. higher than the sol-gel temp. but lower than the nematic-isotropic transition of the system. The latter condition originates in the phase diagram of the system which displays a monotectic-type point at which a liq. is in equil. with a solid and a mesophase. The solid-like nature of the gels produced, combined with their electrooptical activity, opens the possibility to manuf. flexible TN cells via continuous processes as an alternative to the currently employed batch-type methods. [on SciFinder (R)]
Original languageEnglish
Pages (from-to)2721-2726
JournalJapanese Journal of Applied Physics, Part 1 : Regular Papers and Short Notes & Review Papers
Volume39
Issue number5A
DOIs
Publication statusPublished - 2000

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