Proceedings of the Korean Institute of Electrical and Electronic Material Engineers Conference (한국전기전자재료학회:학술대회논문집)

The Korean Institute of Electrical and Electronic Material Engineers (한국전기전자재료학회)
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The liquid crystal alignment effect of in-cell retarder using homogeneous alignment layer

수평 배향막을 이용한 내장형 위상지연 박막의 액정 배향 효과

  • Choi, Min-Oh (School of Advanced Materials Engineering, Chonbuk National University) ;
  • Lim, Young-Jin (School of Advanced Materials Engineering, Chonbuk National University) ;
  • Lee, Seung-Hee (School of Advanced Materials Engineering, Chonbuk National University)
  • 최민오 (전북대학교 신소재 공학부) ;
  • 임영진 (전북대학교 신소재 공학부) ;
  • 이승희 (전북대학교 신소재 공학부)
  • Published : 2005.07.07
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Abstract

Alignment characteristic of liquid crystal (LC) on in-cell retarder which is composed of reactive mesogens has been tested. The in-cell retarder which is polymerized on top of the homogeneous alignment layer (AL) has an optic axis along the rubbing direction of the homeogenous AL and does show good alignment effect of the LC without showing any defects, which possibly allows a skip of another AL on the in-cell retarder that was required conventionally to control alignment of the LC. However, the measured pretilt angle is only 0.04 degree so that disclination lines are generated for a cell that uses the in-cell retarder as an AL when the LC is tilted upward by a vertical electric field.

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