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Materials 2009, 2(4), 1662-1673; doi:10.3390/ma2041662

A Polarizer-Free Electro-Optical Switch Using Dye-Doped Liquid Crystal Gels

* ,  and
Department of Photonics, National Chiao Tung University 1001 Ta Hsueh Rd., Hsinchu 30050, Taiwan
* Author to whom correspondence should be addressed.
Received: 3 September 2009 / Revised: 4 October 2009 / Accepted: 23 October 2009 / Published: 26 October 2009
(This article belongs to the Special Issue Liquid Crystals)
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We demonstrate a polarizer-free electro-optical switch using dye-doped liquid crystal (LC) gels. The mechanism of dye-doped LC gels mainly involves the combination of polymer scattering and dye absorption. However, the domain size of polymer networks, dye concentration, LC concentration, and fabrication process can all affect the phase separation process and thus result in dye-doped LC gels with different electro-optical performance. We have studied experimentally the factors which can affect the dye-doped LC gels. The potential applications for dye-doped LC gels are flexible displays and electrically tunable light shutters.
Keywords: liquid crystal; polarizer-free; electro-optical switch; LC gels liquid crystal; polarizer-free; electro-optical switch; LC gels
This is an open access article distributed under the Creative Commons Attribution License (CC BY) which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

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Lin, Y.-H.; Lin, H.-C.; Yang, J.-M. A Polarizer-Free Electro-Optical Switch Using Dye-Doped Liquid Crystal Gels. Materials 2009, 2, 1662-1673.

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