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Magnetochromatic Microcapsule Arrays for Displays

机译：显示器用磁致变色微囊阵列

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摘要

An approach to construct displays based on magnetochromatic microcap-sules with narrow size distribution has been proposed. These magnetochromatic microcapsules are fabricated by a microfluidic technology. The shell layer of the obtained microcapsule is composed of transparent photocurable ethoxylated trimethylolpropane triacrylate (ETPTA) resin while the core is formed by the aqueous droplet containing monodisperse magnetic nanospheres. The capsule size, shell thickness, and morphology can be easily controlled by the flow rates during the fabrication. In the multipixel array formed by these microcapsules, each microcapsule acts as an individual display unit. The nanospheres in the core droplet can be influenced by an external magnetic field, forming ordered structures which determine light diffraction; therefore, various distinct colors are observed according to the intensity of the external magnetic field. These microcapsules have the advantage of long time stability, viewing angle independence, and dynamic tunable optics.
机译：已经提出了一种基于具有窄尺寸分布的磁致变色微囊构造显示器的方法。这些磁致变色微胶囊是通过微流体技术制造的。所获得的微胶囊的壳层由透明的可光固化的乙氧基化三羟甲基丙烷三丙烯酸酯（ETPTA）树脂组成，而核由包含单分散磁性纳米球的水性液滴形成。胶囊的大小，壳的厚度和形态可以通过制造过程中的流速容易地控制。在由这些微囊形成的多像素阵列中，每个微囊用作单独的显示单元。核心液滴中的纳米球会受到外部磁场的影响，形成决定光衍射的有序结构。因此，根据外部磁场的强度观察到各种不同的颜色。这些微胶囊具有长时间稳定性，视角独立性和动态可调光学特性的优点。

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  • 来源
    《Advanced Functional Materials》 |2011年第11期|p.2043-2048|共6页
  • 作者

    Cun Zhu; Wenyu Xu; Liangshui Chen; Wendong Zhang; Hua Xu; Zhong-Ze Gu;

  • 作者单位

    State Key Laboratory of Bioelectronics School of Chemistry and Chemical Engineering Southeast University Nanjing 210096, P. R. China;

    State Key Laboratory of Bioelectronics School of Biological Science and Medical Engineering Southeast University Nanjing 210096, P. R. China;

    State Key Laboratory of Bioelectronics School of Chemistry and Chemical Engineering Southeast University Nanjing 210096, P. R. China;

    State Key Laboratory of Bioelectronics School of Chemistry and Chemical Engineering Southeast University Nanjing 210096, P. R. China;

    State Key Laboratory of Bioelectronics School of Chemistry and Chemical Engineering Southeast University Nanjing 210096, P. R. China;

    State Key Laboratory of Bioelectronics School of Chemistry and Chemical Engineering Southeast University Nanjing 210096, P. R. China;

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