Electrically Switched Liquid Crystal Color and Device Applications


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We demonstrate a polymer-stabilized cholesteric liquid crystal (PSChLC) where the reflected color can be electrically-switched to reflect a different color at a shorter wavelength (blue-shift). A polymerizable additive formulation is used to ensure a wider range of color tuning and anisotropic reflection where on side reflects and the other side transmits the incident light in response to applied voltage. A second electrically switched color based on polymer-stabilized blue phase (PSBP) liquid crystal is also demonstrated. Applying an electric field across the cell results in a red-shift in Bragg reflected wavelength due to the electrostriction effect. These switchable color devices of are color filters and polarizers free which are suitable for electronic papers.



Key Engineering Materials (Volumes 428-429)

Edited by:

Yuan Ming Huang




S. Y. Lu and L. C. Chien, "Electrically Switched Liquid Crystal Color and Device Applications", Key Engineering Materials, Vols. 428-429, pp. 24-28, 2010

Online since:

January 2010




[1] T. Schneider, F. Nicholson, A. Khan, J.W. Doane and L. -C. Chien: SID 05 Digest (2005). p.1568.

[2] K. D. Hoke, D. J. Davis, A. A. Khan, and J. W. Doane: IDRC 97 Conf. Proc. (1997), p.163.

[3] P. Slikkerveer, P. Bouten, P. Cirkel, J. de Goede, H. Jagt, N. Kooyman, G. Nisato, R. van Rijswijk and P. Duineveld: SID 04 Digest (2004) , p.770.

DOI: https://doi.org/10.1889/1.1821393

[4] M. Okada, T. Hatano, and K. Hashimoto: SID 05 Digest (1997), p.1019.

[5] X.Y. Huang, D.K. Yang, N. Miller, D. Davis and J.W. Doane: SID 98 Digest (1998) , p.810.

[6] J. E. Adams, W. Haas and J. Wysocki: J. Chem. Phys. Vol. 50 (1969), p.2458.

[7] F. Kahn: Phys. Rev. Lett. Vol. 24 (1970) , p.5.

[8] W. Helfrich: Appl. Phys. Lett. Vol. 17 (1970) , p.531.

[9] P. P. Crooker. in Chiarality in Liquid Crystals (Eds. Kitzerow, H. -S. and Bahr, C. ) Springer, New York, 2001, Ch. 7.

[10] G. Heppke, B. Jerome, H. S. Kitzerow and P. Pieranski, J. Phys. (Paris) Vol. 50 (1989), p.549.

[11] H. J. Cole and H. F. Gleeson.: Mol. Cryst. Liq. Cryst. Vol. 167 (1989), p.213.

[12] J. W. Doane, N. A. Vaz, B. G. Wu, and S. Zumer: Appl. Phys. Lett. Vol. 48 (1986), p.269.

[13] T. Schneider, J. Harden, L.C. Chein, A. Kahn, and J. W. Doane: IDRC 06 Digest (2006), p.35.

[14] D.K. Yang, L. -C. Chien and J.W. Doane: Appl. Phys. Lett., Vol. 60 (1992), p.3102.

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