Brewster Angle Microscope Imaging of Surface Inhomogeneity in Liquid Crystal Alignment Polyimide Layers : Structure and Mechanical and Thermal Properties of Condensed Matter
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概要
- 論文の詳細を見る
The surface structure of the polyimide alignment layer has been probed by various tools, but a direct visualization of the treated layer surface over a sizable area is lacking. We demonstrate Brewster angle microscope imaging of the micro-grooves formed on a rubbed polyimide alignment layer, compared with the flat surface image of a photo-aligned polyimide surface. Textures of cholesteric liquid crystal on these alignment layers showed that the rubbing causes a nonuniform orientational alignment of liquid crystals, in contrast to a uniform orientation in the photo-aligned cell. This tool enables early detection of surface defects in alignment layers, which would significantly reduce the failure in liquid crystal display fabrication.
- 社団法人応用物理学会の論文
- 2001-07-01
著者
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Park Byoungchoo
Department Of Organic And Polymeric Materials Tokyo Institute Of Technology
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Park Byoungchoo
Department Of Physics Ewha Womans University
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Wu J.w.
Department Of Physics Ewha Womans University
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Jung Chi-sup
Department Of Optical Engineering Chongju University
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