Effects of Cell and Material Properties on Multiplexing Levels of Twisted Nematic Liquid Crystal Displays

  • H. Birecki
  • F. J. Kahn
Chapter
Part of the The IBM Research Symposia Series book series (IRSS)

Abstract

Multiplexed twisted nematic liquid crystal devices (TN-LCDs) are the mainstay of low power, medium information content displays. At present, the voltage threshold and the nonlinearity of the electrooptic response intrinsic to the twisted nematic structure are used to achieve multiplexing. The multiplexing level achievable using this technology is limited by the sharpness of the electrooptic response and by the variations of this response with viewing angle.1

Keywords

Anisotropy Torque Assure Refraction Azimuth 

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References

  1. 1.
    F. J. Kahn, H. Birecki, “Multiplexing Limits of Twisted Nematic Liquid Crystal Displays and Implications for the Future High Information Content LCDs,” this volume.Google Scholar
  2. 2.
    D. W. Berreman, J. Opt. Soc. Am. 63:1374 (1973).CrossRefGoogle Scholar
  3. 3.
    D. W. Berreman, J. Appl. Phys. 46:3746 (1975).CrossRefGoogle Scholar
  4. 4.
    C. Z. van Doorn, J. Appl. Phys. 46:3738 (1975).CrossRefGoogle Scholar
  5. 5.
    G. Baur, F. Windscheid and D. W. Berreman, Appl. Phys. 8:101 (1975).CrossRefGoogle Scholar
  6. 6.
    F. C. Frank, Disc. Farad. Soc. 25:19 (1958).CrossRefGoogle Scholar
  7. 7.
    M. Schadt and F. Müller, IEEE Trans. Electr. Dev. 25:1125 (1978).CrossRefGoogle Scholar
  8. 8.
    M. Schadt and F. Muller, 7th Intern. Liq. Cryst. Conf. Bordeaux, (1978).Google Scholar
  9. 9.
    M. Schadt and W. Helfrich, Appl. Phys. Lett. 18:127 (1971).CrossRefGoogle Scholar
  10. 10.
    H. Birecki and F. J. Kahn, submitted to J. Appl. Phys.Google Scholar
  11. 11.
    P. A. Penz, SID Int’l Symposium 1978, Digest Tech. Papers, p. 68.Google Scholar
  12. 12.
    E. P. Raynes, “Recent Advances in Liquid Crystal Materials and Display Devices,” Biennial Display Research Conference Record, 1978 p. 8.Google Scholar
  13. 13.
    K. Toriyama, K. Suzuki, T. Nakagomi, T. Ishibashi and K. Odawara, J. Phys. Colloq. 40-C3:317 (1978).Google Scholar
  14. 14.
    A. R. Kmetz, SID Int’l Symposium, 1978, Digest of Tech. Papers, p. 70.Google Scholar
  15. 15.
    C. Z. van Doorn, C. J. Gerritsma and J. J. M. J. de Klerk, IBM Symposium on Liq. Cryst., Feb. 1979.Google Scholar
  16. 16.
    C. Z. van Doorn and J. L. A. M. Heldens, Phys. Lett. 47A:135 (1974).Google Scholar
  17. 17.
    P. G. De Gennes, “Physics of Liquid Crystals,” Clarendon Press, Oxford (1974), Section 6.1.Google Scholar
  18. 18.
    D. W. Berreman, Appl. Phys. Lett. 25:12 (1979).CrossRefGoogle Scholar
  19. 19.
    F. M. Leslie, Mol. Crystl. Liq. Cryst. 12:57 (1970).CrossRefGoogle Scholar
  20. 20.
    D. W. Berreman, J. Opt. Soc. Am. 62:502 (1972).CrossRefGoogle Scholar
  21. 21.
    S. Teitler and B. W. Henvis, J. Opt. Soc. Am. 60:830 (1970).CrossRefGoogle Scholar

Copyright information

© Springer Science+Business Media New York 1980

Authors and Affiliations

  • H. Birecki
    • 1
  • F. J. Kahn
    • 1
  1. 1.Solid State LaboratoryHP LaboratoriesPalo AltoUSA

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