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<p>Conventional color electronic books and commercial advertising displays typically employ multilayer liquid crystal structures, in which light reflection and transmission are controlled to generate color images. In this study, a novel reflective bistable cholesteric liquid crystal display device was developed to simplify fabrication and increase image sharpness. The fabricated dual-frequency bistable liquid crystal device exhibits stable opaque focal conic states and transparent planar states after a single switching cycle, and no additional energy is required to maintain either state. These results demonstrate the significant potential of dual-frequency bistable liquid crystal devices for energy-efficient smart windows, electronic books, and optical components, providing new directions for the development of future energy-saving technologies.</p>

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Application of a single-layer cholesteric liquid crystal film in full-color electronic books

  • 期刊论文

  • 出版模式：

    开放获取

  • 发表日期：

    2026年5月14日

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  • Chung-Yu Kuo,
  • Yan-Ting Lin,
  • Chia-En Lee,
  • Chun-Yen Liu

摘要

Conventional color electronic books and commercial advertising displays typically employ multilayer liquid crystal structures, in which light reflection and transmission are controlled to generate color images. In this study, a novel reflective bistable cholesteric liquid crystal display device was developed to simplify fabrication and increase image sharpness. The fabricated dual-frequency bistable liquid crystal device exhibits stable opaque focal conic states and transparent planar states after a single switching cycle, and no additional energy is required to maintain either state. These results demonstrate the significant potential of dual-frequency bistable liquid crystal devices for energy-efficient smart windows, electronic books, and optical components, providing new directions for the development of future energy-saving technologies.