한국전기전자재료학회:학술대회논문집 (Proceedings of the Korean Institute of Electrical and Electronic Material Engineers Conference)
- 한국전기전자재료학회 2008년도 춘계학술대회 및 기술 세미나 논문집 디스플레이 광소자
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- Pages.44-44
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- 2008
이온빔 조사각도에 따른 액정의 프리틸트각과 전기 광학적 특성
Pretilt angle and EO Characteristics of Liquid Crystal via Ion-beam Irradiation Angles
- 이강민 (연세대학교) ;
- 이원규 (연세대학교) ;
- 오병윤 (연세대학교) ;
- 김병용 (연세대학교) ;
- 한진우 (연세대학교) ;
- 전지연 (연세대학교) ;
- 한정민 (연세대학교) ;
- 이상극 (연세대학교) ;
- 서대식 (연세대학교)
- Lee, Kang-Min (Yonsei University) ;
- Lee, Won-Kyu (Yonsei University) ;
- Oh, Byeong-Yun (Yonsei University) ;
- Kim, Byoung-Yong (Yonsei University) ;
- Han, Jin-Woo (Yonsei University) ;
- Jeon, Ji-Yeon (Yonsei University) ;
- Han, Jeong-Min (Yonsei University) ;
- Lee, Sang-Keuk (Yonsei University) ;
- Seo, Dae-Shik (Yonsei University)
- 발행 : 2008.04.25
초록
To date, rubbing has been widely used to align LC molecules uniformly. Although rubbing can be simple, it has fundamental problems such as the generation of defects by dust and static electricity, and difficulty in achieving a uniform LC alignment on a large substrate. Therefore, non contact alignment has been investigated. Ion beam induced alignment method, which provides controllability, nonstop process, and high resolution display. In this study, we investigated liquid crystal (LC) alignment with ion beam (IB) that non contact alignment technique on polyimide and electro-optical characteristics of twisted nematic (TN)-liquid crystal display (LCD) on the polyimide under various ion beam angles. In this experiment, Polyimide layer was coated on glass by spin-coating and Voltage-transmittance(VT) and response time characteristics of the TN cell were measured by a LCD evaluation system. The good characteristics of the nematic liquid crystal (NLC) alignment with the ion beam exposure polyimide surface was observed. The tilt angle of NLC on the PI surface with ion beam exposure can be measured under