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Improved contrast uniformity in twisted nematic liquid-crystal electro-optic display devices

Improved contrast uniformity in twisted nematic liquid-crystal electro-optic display devices

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It has already been shown that one source of the patched appearance in twisted nematic displays is reverse twist; we now demonstrate the existence of another. Both types of patches have been eliminated by the use of cholesteric additives in combination with particular types of surface alignment.

References

    1. 1)
      • M. Schadt , W. Helfrich . Voltage dependent optical activity of a twisted nematic liquid crystal. Appl. Phys. Lett. , 127 - 128
    2. 2)
      • Kobayashi, S., Takenchi, F.: `Milticolour field-effect display devices with twisted nematic liquid crystals', Proceedings of Society for Information Display symposium, 1973, New York, USA.
    3. 3)
      • D.W. Berreman . Optics in smoothly varying anisotropic planar structures: application to liquid-crystal twist cells. J. Opt. Soc. Am. , 1374 - 1380
    4. 4)
      • E.P. Raynes . Twisted nematic liquid-crystal electro-opti devices with areas of reverse twist. Electron. Lett. , 101 - 102
    5. 5)
      • A. Sussman . Electro-optic liquid crystal devices: principles and applications. IEEE Trans. , 24 - 37
    6. 6)
      • Schadt, M., Helfrich, W.: `British Patent Application', 53678, 1971.
    7. 7)
      • I. Haller . Elastic constants of the nematic liquid crystalline phase of p-methoxybenzylidene-p-n butylaniline (MBBA). J. Chem. Phys. , 1400 - 1405
    8. 8)
      • G.W. Gray , K.J. Harrison , J.A. Nash . New family of nematic liquid crystals for displays. Electron. Lett. , 130 - 131
    9. 9)
      • E. Guyon , P. Pieranski , M. Boix . On different boundary conditions of nematic films deposited on obliquely evaporated plates. Appl. & Eng. Sci. , 19 - 24
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