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Electric‐field‐induced texture and phase transformation of liquid‐crystal films

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1 Author(s)
Lin‐Hendel, Catherine G. ; Applied Research Group, Tektronix Laboratories, Beaverton, Oregon 97077

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The electric‐field‐induced liquid‐crystal (LC) cholesteric‐to‐nematic (C‐N) phase transformation and its relaxation (N‐C) are examined using the anisotropic color absorption properties of a dichroic dye dopant. A tristability is observed. The stable memory associated with the tristability has potential application to display devices. The N‐C relaxation characteristics are found to be related to the ratio of LC‐film thickness to pitch length (d/p).

Published in:

Journal of Applied Physics  (Volume:53 ,  Issue: 2 )