한국전기전자재료학회논문지 (Journal of the Korean Institute of Electrical and Electronic Material Engineers)

  • 제14권2호
  • /
  • Pages.130-132
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  • 2001
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  • 1226-7945(pISSN)
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  • 2288-3258(eISSN)
한국전기전자재료학회 (The Korean Institute of Electrical and Electronic Material Engineers)
권호 표지

수직배향층에서의 네마틱액정의 프리틸트각 발생

Pretilt Angle Generation for Nematic Liquid Crystal on a Homeotropic Alignment Layer

  • 서대식 (연세대학교 전기·전자공학과) ;
  • 김형규 (연세대학교 전기·전자공학과) ;
  • 이승희 (현대전자 TFT-LCD사업부)
  • 발행 : 2001.02.01
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초록

The mechanisms of pretilt angle generation in nematic liquid crystal (NLC) with negative dielectric anisotropy on a rubbed polyimide (PI) surface for homeotropic alignment were studied. The pretilt angle of negative type NLC was smaller than that of the positive type NLC for all rubbing strength regions on the rubbed PI surface. The pretilt angle generated in NLC does not attributable to steric interaction between the fluorine moiety of NLC and the polymer surface on the rubbed PI surface. Consequently, the mechanism of the pretilt angle generation for homeotropic alignment is different from the one for homogeneous alignment.

키워드

참고문헌

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  9. 전기전자재료학회논문지 v.12 no.5 부의 유전율 이방성 액정과 시아노 혼합물 액정에서의 프리틸트각 서대식;이승희;권덕용;한은주;김재형