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横向电场对平面织构胆甾相液晶螺距及反射特性的影响

邓罗根 赵找栗

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横向电场对平面织构胆甾相液晶螺距及反射特性的影响

邓罗根, 赵找栗

Effect of the transverse electric field on the pitch and reflective characteristics of the planar texture cholesteric liquid crystals

Deng Luo-Gen, Zhao Zhao-Li
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  • 阐述一种理论模型,讨论共面转换(IPS)模式下横向电场对平面织构胆甾相液晶螺距及扭曲角的影响.利用琼斯矩阵法计算了光正入射情况下未加电场时胆甾相液晶的反射谱.在上述模型基础上,计算了施加电场后胆甾相液晶的反射峰值波长以及反射带宽随场强的变化关系.探讨了忽略锚定与强锚定两种边界条件下横向电场对平面织构胆甾相液晶螺距及反射特性的影响.所得结论在理论上证实:共面转换模式下电场可以调谐胆甾相液晶的反射光颜色,从而为基于电控螺距原理的胆甾相液晶反射式彩色显示方案提供了理论上的依据.
    The reflective spectrums of the cholesteric liquid crystals under the condition of normal incident light are computed by using Jones matrix method. A theoretical model for discussing the influence of the transverse electric field on the twist angle and the pitch of the planar texture cholesteric liquid crystals under the in-plane switching mode is established. Based on the model, the relation between the electric field and the reflective peak for the cholesteric liquid crystals, and the relation between the electric field and the reflective spectral width for the cholesteric liquid crystals are calculated. The effects of the transverse electric field on the pitch and the reflective characteristics of the planar texture cholesteric liquid crystals are studied under different anchoring conditions. The results show that, under the in-plane switching mode, the color of the light reflected from the cholesteric liquid crystals can be changed by the applied transverse electric field, which supplies a theoretical support for the planar texture cholesteric LC color display based on the electrically-controlled pitch.
    • 基金项目: 国家自然科学基金(批准号:10874016)资助的课题.
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  • 文章访问数:  7778
  • PDF下载量:  1710
  • 被引次数: 0
出版历程
  • 收稿日期:  2008-01-25
  • 修回日期:  2009-02-23
  • 刊出日期:  2009-11-20

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