Temperature independent low voltage polymer stabilized blue phase liquid crystals

E. Kemiklioglu; J. Y. Hwang; L.-C. Chien

doi:10.1117/12.909043

6 February 2012 Temperature independent low voltage polymer stabilized blue phase liquid crystals

E. Kemiklioglu, J. Y. Hwang, L.-C. Chien

Proceedings Volume 8280, Advances in Display Technologies II; 82800H (2012) https://doi.org/10.1117/12.909043
Event: SPIE OPTO, 2012, San Francisco, California, United States

Abstract

Blue phases are types of liquid crystal phase which can appear in a narrow temperature range between a chiral nematic phase and isotropic liquid phase. Blue Phase (BP) liquid crystals have been known to exist in a small temperature range. Recently, broadening the temperature range of a BP liquid crystal has occurred by using a mixture of nematic bimesogenic liquid crystals or by polymerizing a small amount of monomer in a BP to stabilize the cubic lattice against temperature variation. In this study, we report a low switching voltage polymer stabilized blue phase (PSBP) liquid crystal device. We showed the stabilization of blue phases over a temperature range of 30.4 °C including room temperature. We observed the temperature independent of Bragg wavelength. Furthermore, the polymer effect on the electo-optic properties of a self assembled nanostructured blue phase liquid crystal composites have been investigated. As well as the ratio between two monomers, the overall monomers concentration is controlled.

Citation Download Citation

E. Kemiklioglu, J. Y. Hwang, and L.-C. Chien "Temperature independent low voltage polymer stabilized blue phase liquid crystals", Proc. SPIE 8280, Advances in Display Technologies II, 82800H (6 February 2012); https://doi.org/10.1117/12.909043

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