New fluorinated heterocyclic compounds for improved FLC mixtures

Axel E. Pausch; Thomas Geelhaar; Eike Poetsch; Ulrich Finkenzeller

doi:10.1117/12.60381

15 June 1992 New fluorinated heterocyclic compounds for improved FLC mixtures

Axel E. Pausch, Thomas Geelhaar, Eike Poetsch, Ulrich Finkenzeller

Proceedings Volume 1665, Liquid Crystal Materials, Devices, and Applications; (1992) https://doi.org/10.1117/12.60381
Event: SPIE/IS&T 1992 Symposium on Electronic Imaging: Science and Technology, 1992, San Jose, CA, United States

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.

Citation Download Citation

Axel E. Pausch, Thomas Geelhaar, Eike Poetsch, and Ulrich Finkenzeller "New fluorinated heterocyclic compounds for improved FLC mixtures", Proc. SPIE 1665, Liquid Crystal Materials, Devices, and Applications, (15 June 1992); https://doi.org/10.1117/12.60381

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