Photo-Rubbing: A General Method to Induce Durable Liquid-Crystal Pretilt Angle on Photo-Alignment Films
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概要
- 論文の詳細を見る
A normal-incidence single-exposure scheme to obtain a stable pretilted alignment of nematic liquid crystals on photo-alignment polymer layers is proposed. The new scheme consists in periodically modulating the intensity of the normally incident linearly polarized near-ultraviolet light and unidirectionally scanning it on the photosensitive alignment layer. By properly choosing the relative directions of scan and polarization, this scheme works for any types of photo-alignment materials regardless of the resultant alignment direction relative to the polarization direction of the UV light. The pretilt appears in such a way that the nematic director is lifted up in the scan direction, similar to the case of the conventional cloth rubbing. This "photo-rubbing" method allows a fairly accurate control of the pretilt angle by way of the scan speed.
- 社団法人応用物理学会の論文
- 2002-12-01
著者
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YOKOYAMA Hiroshi
Nanotechnology Research Institute, AIST and JST ERATO
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Kumano A
Display Research Laboratories Jsr Corporation
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KIMURA Masayuki
Display Research Laboratories, JSR Corporation
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NAKATA Shoichi
Display Research Laboratories, JSR Corporation
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MAKITA Yutaka
Display Research Laboratories, JSR Corporation
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Matsuki Yasuo
Display Research Laboratories, JSR Corporation
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KUMANO Atsuki
Display Research Laboratories, JSR Corporation
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TAKEUCHI Yasumasa
International Center for Materials Research
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Yokoyama Hiroshi
Nanotechnology Research Institute Aist
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YOKOYAMA Hiroshi
Nanotechnology Research Institute, National Institute of Advanced Industrial Science and Technology
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