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Optics Express

Optics Express

  • Editor: C. Martijn de Sterke
  • Vol. 16, Iss. 3 — Feb. 4, 2008
  • pp: 1777–1785

A polarizer-free flexible and reflective electro-optical switch using dye-doped liquid crystal gels

Yi-Hsin Lin, Jhih-Ming Yang, Yan-Rung Lin, Shie-Chang Jeng, and Chi-Chang Liao  »View Author Affiliations

Optics Express, Vol. 16, Issue 3, pp. 1777-1785 (2008)

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A polarizer-free flexible and reflective electro-optical switch 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 due to domain sizes of polymer networks. Such flexible electro-optical switch is bendable and trim-able because of the vertical polymer networks and gel-like materials. The dye-doped LC gel shows good reflectance ~55%, good contrast ratio~450:1 and fast response~6.4ms at curing temperature 10 °C. The bending curvature is 21 mm. The dye-doped LC gels open a new window for trim-able electronic papers, decorative displays, electrically switchable curtains, and electrically switchable sun control film for the automobiles, homes or commercial buildings

© 2008 Optical Society of America

OCIS Codes
(160.5470) Materials : Polymers
(230.3720) Optical devices : Liquid-crystal devices

ToC Category:
Optical Devices

Original Manuscript: November 16, 2007
Revised Manuscript: January 15, 2008
Manuscript Accepted: January 19, 2008
Published: January 25, 2008

Yi-Hsin Lin, Jhih-Ming Yang, Yan-Rung Lin, Shie-Chang Jeng, and Chi-Chang Liao, "A polarizer-free flexible and reflective electrooptical switch using dye-doped liquid crystal gels," Opt. Express 16, 1777-1785 (2008)

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