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

Yi-Hsin Lin*, Jhih Ming Yang, Yan Rung Lin, Shie-Chang Jeng, Chi Chang Liao

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

47 Scopus citations

Abstract

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

Original languageEnglish
Pages (from-to)1777-1785
Number of pages9
JournalOptics Express
Volume16
Issue number3
DOIs
StatePublished - 4 Feb 2008

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