Surface sliding effect of nematic liquid crystals on soft- polymer

  • Lee, Chang-Hoon (Department of Information Display Engineering, Hanyang University) ;
  • Gwag, Jin-Seog (Research Institute of Information Display, Hanyang University) ;
  • Lee, You-Jin (Department of Information Display Engineering, Hanyang University) ;
  • Jin, Min-Young (Research Institute of Information Display, Hanyang University) ;
  • Kim, Jae-Hoon (Department of Information Display Engineering, Hanyang University)
  • Published : 2008.10.13

Abstract

Recently, study on the weak interaction energy between the soft polymer surface and liquid crystals has been a primary topic for new LC device applications. In this paper, to understand the switching property of nematic liquid crystals (LCs) at the interface with a weak anchoring boundary, we investigate experimentally the rotation property of surface nematic director by electric field on non-treated Poly-Methylmethacrylate (PMMA, $T_g=110^{\circ}C$, Sigma Aldrich) film observed under various temperatures including the glass transition temperature ($T_g$) of the polymer layer.

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