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Proceedings Paper

Polymer-dispersed cholesteric liquid crystals
Author(s): Peter P. Crooker; H.-S. Kitzerow; F. Xu
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Paper Abstract

We describe recent progress on the polymer-dispersed cholesteric liquid crystal display. The display utilizes droplets of chiral liquid crystal with negative dielectric anisotropy in a polymer film. In zero electric field, the droplets take on the Frank-Pryce spherulitic texture which weakly scatters light. When a field is applied, the Frank-Pryce texture reverts continuously to a planar texture beginning from the center of the drop, resulting in a field-controllable reflectivity over a wavelength band dictated by the cholesteric pitch and the drop size. Results showing response times and reflection spectra for thermally-cured and UV-cured displays will be presented.

Paper Details

Date Published: 4 April 1994
PDF: 10 pages
Proc. SPIE 2175, Liquid Crystal Materials, Devices, and Applications III, (4 April 1994); doi: 10.1117/12.172123
Show Author Affiliations
Peter P. Crooker, Univ. of Hawaii (United States)
H.-S. Kitzerow, Univ. of Hawaii and Technische Univ. Berlin (United States)
F. Xu, Univ. of Hawaii (United States)

Published in SPIE Proceedings Vol. 2175:
Liquid Crystal Materials, Devices, and Applications III
Ranganathan Shashidhar, Editor(s)

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