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Proceedings Paper

Flexible and reflective polarizer-free liquid crystal displays using dye-doped liquid crystal gels
Author(s): Yi-Hsin Lin; Jhih-Ming Yang; Shie-Chang Jeng; Yan-Rung Lin; Chi-Chang Liao
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Paper Abstract

A flexible and reflective polarizer-free display using dye-doped liquid crystal (LC) gels is demonstrated. The electro-optical performances of both scattering and absorption based dye-doped LC gels depend on curing temperatures. The dye-doped LC gel shows good reflectance ~55%, good contrast ratio~450:1 and fast response~6.5ms at curing temperature 10 °C when UV curing intensity is 2.6 mW/cm2. The EO performance depends on the curing temperature. The hysteresis is independent of sampling time duration. The bending curvature is 21 mm. The response of dye-doped LC gels is faster under bending due to the bending-induced sheared force of polymer networks. The dye-doped LC gels open a new window for trimable electronic papers, decorative displays and switchable curtains.

Paper Details

Date Published: 29 January 2008
PDF: 8 pages
Proc. SPIE 6911, Emerging Liquid Crystal Technologies III, 691108 (29 January 2008); doi: 10.1117/12.762649
Show Author Affiliations
Yi-Hsin Lin, National Chiao Tung Univ. (Taiwan)
Jhih-Ming Yang, National Chiao Tung Univ. (Taiwan)
Shie-Chang Jeng, Industrial Technology Research Institute (Taiwan)
Yan-Rung Lin, Industrial Technology Research Institute (Taiwan)
Chi-Chang Liao, Industrial Technology Research Institute (Taiwan)

Published in SPIE Proceedings Vol. 6911:
Emerging Liquid Crystal Technologies III
Liang-Chy Chien, Editor(s)

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