Pretilt Control of a Nematic Liquid Crystal on Polymer Layers by Atmospheric Plasma Irradiation

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We present the pretilt control of a nematic liquid crystal (LC) on polymer layers exposed to a plasma beam under atmospheric pressure. Depending on the exposure parameters of the atmospheric pressure plasma (APP) in a sheetlike shape, the vertical or the planar alignment with a variable pretilt can be produced on a homeotropic polyimide (PI) layer. The polar anchoring energy of the APP-exposed PI layer is of the order of $10^{-4}$ J/m2, comparable to the rubbed PI layer. Our approach to the plasma-assisted LC alignment under ambient pressure would be applicable for the in-line process of producing wideviewing LC displays with multidomains.

収録刊行物

  • Japanese journal of applied physics. Pt. 2, Letters

    Japanese journal of applied physics. Pt. 2, Letters 45(46), L1238-L1240, 2006-12-25

    Japan Society of Applied Physics

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各種コード

  • NII論文ID(NAID)
    10018460866
  • NII書誌ID(NCID)
    AA10650595
  • 本文言語コード
    EN
  • 資料種別
    SHO
  • ISSN
    0021-4922
  • NDL 記事登録ID
    8589631
  • NDL 雑誌分類
    ZM35(科学技術--物理学)
  • NDL 請求記号
    Z54-J337
  • データ提供元
    CJP書誌  NDL  JSAP 
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