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Proceedings Paper

Polymer-enhanced bend-mode nematic displays
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Paper Abstract

We describe a detailed study of the bend nematic structure stabilized by the polymer network. The formation of phase-separated polymer network in a bend nematic structure is affected by various factors, such as the polymer network morphology, polymer concentration, applied electric field, UV exposure time, and UV intensity. SEM images of the polymer network morphology show a templating effect, where highly ordered nanofibers mimic the bend state of the liquid crystal. At low monomer concentration and low curing voltage, liquid crystal can be oriented into the twist or splay state. High monomer concentration conveys excessive strength of the polymer network on liquid crystal and shows poor electro-optical properties of liquid crystal. With the current nematic host, the best condition of our experiments is 3% monomer concentration and 5V curing voltage. The resulted liquid crystal-polymer composite shows fairly fast optical response to the applied field.

Paper Details

Date Published: 30 April 2003
PDF: 7 pages
Proc. SPIE 5003, Liquid Crystal Materials, Devices, and Applications IX, (30 April 2003); doi: 10.1117/12.482351
Show Author Affiliations
Sang Hwa Kim, Kent State Univ. (United States)
Liang-Chy Chien, Kent State Univ. (United States)

Published in SPIE Proceedings Vol. 5003:
Liquid Crystal Materials, Devices, and Applications IX
Liang-Chy Chien, Editor(s)

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