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Proceedings Paper

New fluorinated heterocyclic compounds for improved FLC mixtures
Author(s): Axel E. Pausch; Thomas Geelhaar; Eike Poetsch; Ulrich Finkenzeller
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Paper Abstract

New suitable homologues of SmC host materials including different classes of fluorinated and non-fluorinated alkyl-alkyloxy-phenylpyrimidines were developed. Some materials were chosen to develop a new SmC host mixture. Several new chiral dopants have been synthesized. We found an influence of the different ring-systems and various side chains on the physical properties. Chiral dopants with more than one chiral center exhibit interesting properties. One dopant with a fluorine atom at the chiral center and a biphenyl-cyclohexane core showed the best properties and was chosen to introduce, together with the new SmC host mixture, new FLC-mixtures with improved properties. By using low-volt multiplex driving schemes and also high-volt multiplex driving schemes it is shown that these mixtures with an adjustable Ps fulfill the requirements for both methods.

Paper Details

Date Published: 15 June 1992
PDF: 6 pages
Proc. SPIE 1665, Liquid Crystal Materials, Devices, and Applications, (15 June 1992); doi: 10.1117/12.60381
Show Author Affiliations
Axel E. Pausch, E. Merck (Germany)
Thomas Geelhaar, E. Merck (Germany)
Eike Poetsch, E. Merck (Germany)
Ulrich Finkenzeller, E. Merck (Germany)

Published in SPIE Proceedings Vol. 1665:
Liquid Crystal Materials, Devices, and Applications
Paul S. Drzaic; Uzi Efron, Editor(s)

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