4.6 Article

Electrically switched color with polymer-stabilized blue-phase liquid crystals

Journal

OPTICS LETTERS
Volume 35, Issue 4, Pages 562-564

Publisher

OPTICAL SOC AMER
DOI: 10.1364/OL.35.000562

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Funding

  1. U.S. Air Force Office of Scientific Research (AFOSR)
  2. National Science Foundation (NSF) [DMR-0606357]
  3. Kent State University

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We report an electrical-field switched color device using a polymer-stabilized blue-phase ( PSBP) liquid crystal in which the Bragg-reflected color of the blue phase ( BP) can be switched to reflect a second color. The phase-separated three-dimensional polymer network transcribes the cubic structure of a BP liquid crystal and restrains the deformation of cubic lattice by the external electric field. The new wide-range electric-field switched colors with PSBP may be an important step toward ecofriendly color reflective displays. (C) 2010 Optical Society of America

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