| 학회 |
한국공업화학회 |
| 학술대회 |
2008년 가을 (11/12 ~ 11/14, ICC 제주) |
| 권호 |
12권 2호 |
| 발표분야 |
콜로이드계면화학 심포지엄 |
| 제목 |
Nematic Liquid Crystal Alignment on Micro-grooved-patterned Surfaces |
| 초록 |
The soft embossing method is applied to fabricate periodical micro-grooved structure on polyimide surfaces. These micro-grooved polyimide surfaces are assembled to form liquid crystal cells. It is found that the director of liquid crystals uniformly aligns along the groove direction even when the groove width is as large as 3 μm. The pretilt angle of liquid crystals4-n-pentyl-4’-cyanobiphenyl (5CB) is adjusted by tuning the surface hydrophobicity of the polyimide alignment layer. The surface polarity of polyimide alignment layers is manipulated by simply mixing two kinds of polyimide: a more hydrophilic one and a more hydrophobic one. |
| 저자 |
Li-Jen Chen |
| 소속 |
Department of Chemical Engineering |
| 키워드 |
microgroved structure; liquid crystal; polyimide; hydrophobicity
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| E-Mail |
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