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Polymer Dispersed Liquid Crystals for Electronic Applications

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Abstract

The electrooptic characteristics of liquid crystal-polymer composites (PDLC, PNLC, NCAP...) are strongly dependent on surface interactions between polymer and liquid crystal molecules. In order to clarify this dependence, we have investigated the chemical modification of the surface of the polymer, without affecting its bulk properties. We show that it is possible to greatly modify the electrooptic performances of composite cells, and thus to optimise them for an application in visualisation.

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References

  1. J.W. Doane, Liquid Crystals Applications and Uses, World Scientific, 1990, ch 14, p361.

    Google Scholar 

  2. E. Ginter, E. Lueder, T. Kallfass, S. Huttelmaier, M. Doblcr, V. Hochholzcr, D. Coates, M. Tillin, P. Nollan, “Optimized PDLCs for active-matrix addressed light valves in projection systems”, Proc. 13th IDRC, 1993, pl05.

    Google Scholar 

  3. H. Yoshida, K. Nakamura, H. Tsuda, M. Ohashi, I. Tomita, M. Okabe, “A direct view polymer-dispersed LCD with crossed Nicois and a uniaxial film”, Proc. 13th IDRC, 1993, p121.

    Google Scholar 

  4. N.A. Vaz, G.P. Montgomery, “Refractive indices of polymer-dispersed liquid crystal film materials: epoxy based systems”, J.Appl.Phys., vol 62(8), p3161, 1987.

    Article  CAS  Google Scholar 

  5. D. Seekola, J. Kelly, “A comparative study of the dielectric and optical response of PDLC films”, SPIE, vol 1455, p19, 1991.

    Article  Google Scholar 

  6. Y. Hirai, S. Niiyama, H. Kumai, T. Gunjima, “Phase diagram and phase separation in LC/prepolymer mixture”, SPIE, vol 1257, p2, 1990.

    Article  CAS  Google Scholar 

  7. H. Nomura, S. Suzuki, Y. Atarashi, “Interfacial interaction between nematic liquid crystal and polymer in composite film...”, JapJ. Appl.Phys., vol 30(2), p327, 1991.

    CAS  Google Scholar 

  8. G.P. Crawford, R.J. Ondris-Crawford, S. Zumer, S. Keast, M. Neubert, J.W. Doane, “Alignment and ordering mechanisms at a liquid crystal-solid interface”, Liquid Crystals, vol 14(5), p1573, 1993.

    Article  CAS  Google Scholar 

  9. L. Bouteiller, P. Le Barny, F. Massie, P. Robin, “Influence of the chemical nature of polymer surface on electrooptic properties of PNLC”, Proc. 13th IDRC, 1993, p325.

    Google Scholar 

  10. The swelling ratio measures the increase in volume of a piece of polymer immersed in a solvent. It is measured by weighing.

    Google Scholar 

  11. In ref 9, the polymer in cells modified for more than T do not recover their initial shape. This explains the dramatic increase of Tmin.

    Google Scholar 

  12. J. Fricke, A. Emmcrling, “Aerogels”, J.Am.Ceram. Soc., vol 75(8), p2027, 1992.

    Article  CAS  Google Scholar 

  13. K. Ogino, T. Otsuka, Kobunshi Ronbunshu, 42(12), 857, 1985.

    Article  CAS  Google Scholar 

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© 1995 Springer Science+Business Media New York

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Dubois, J.C., Bouteiller, L., Le Barny, P., Robin, P. (1995). Polymer Dispersed Liquid Crystals for Electronic Applications. In: Prasad, P.N., Mark, J.E., Fai, T.J. (eds) Polymers and Other Advanced Materials. Springer, Boston, MA. https://doi.org/10.1007/978-1-4899-0502-4_41

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  • DOI: https://doi.org/10.1007/978-1-4899-0502-4_41

  • Publisher Name: Springer, Boston, MA

  • Print ISBN: 978-1-4899-0504-8

  • Online ISBN: 978-1-4899-0502-4

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