Journal of the Korean Institute of Telematics and Electronics D (전자공학회논문지D)

The Institute of Electronics and Information Engineers (대한전자공학회)
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Surface characterization of polyimides for LCDs by second-harmonic generation technique

SHG을 이용한 LCD 배향막 표면 특성분석

  • 정태혁 (부산대학교 전자공학과, 컴퓨터 및 정보통신연구소) ;
  • 윤태훈 (부산대학교 전자공학과, 컴퓨터 및 정보통신연구소) ;
  • 김재창 (부산대학교 전자공학과, 컴퓨터 및 정보통신연구소)
  • Published : 1997.03.01
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Abstract

The surface characteristics of polymers for liquid crystal alignment are studied by optical second-harmonic genertion (SHG) tecnique. Using SHG technique, the LC monolayers on rubbed polymer have already been studied. But, in this paper, the SH signals of polymer were observed and the orientational distribution of oriented polymer was studied. Te SHG experiments for side-chain type and main-chain type polymers are carried out as a function of rubbing strength. The orentational distribution of surface molecules of polymers is compared with the LC pretilt angle measured by the crystal rotation method.

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