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http://dx.doi.org/10.4313/TEEM.2009.10.1.016

Liquid Crystal Orientation Properties on Homogeneous Polymer Surface by Various Alignment Methods  

Kim, Young-Hwan (Department of Electrical and Electronic Engineering, Yonsei University)
Lee, Kang-Min (Department of Electrical and Electronic Engineering, Yonsei University)
Kim, Byoung-Yong (Department of Electrical and Electronic Engineering, Yonsei University)
Oh, Byeong-Yun (Department of Electrical and Electronic Engineering, Yonsei University)
Han, Jeong-Min (Department of Electrical and Electronic Engineering, Yonsei University)
Seo, Dae-Shik (Department of Electrical and Electronic Engineering, Yonsei University)
Publication Information
Transactions on Electrical and Electronic Materials / v.10, no.1, 2009 , pp. 16-19 More about this Journal
Abstract
We have studied the liquid crystal alignment properties for various alignment methods on the homogeneous polyimide surface. Suitable liquid crystal alignment for one-side alignment cell on the polyimide surface by all alignment method was observed. Highly pre-tilt angle of the NLC for both-side rubbing cell was measured. But, low pre-tilt angle of the NLC for one-side ion beam and UV irradiation cell was observed. We consider that the pre-tilt angle of NLC for one-side ion beam and UV irradiation on the PI surface is lower than that of the PI surface with rubbing. Also, the suitable transmittance-voltage curves for the one-side rubbing TN-LCD on the PI surface with one-side UV irradiation were measured. Also, good response time characteristics of the one-side rubbing TN-LCD on the polyimide surface with one-side UV irradiation can be measured.
Keywords
Homogeneous polymer; Ion beam; UV; Pretilt angle; Liquid crystal alignment;
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1 J.-M. Han, S.-H. Choi, B.-Y. Kim, J.-W. Han, J.-Y. Hwang, C.-H. Ok, and D.-S. Seo, Trans. EEM 7, 293 (2006)
2 J.-M. Han, S.-H. Choi, B.-Y. Kim, J.-W. Han, J.-H. Kim, Y.-H. Kim, J.-Y. Hwang, S.-K. Lee, C.-H. Ok, and D.-S. Seo, Trans.EEM 8, 46 (2007)
3 B. O. Myrvold and K. Kondo, Liq. Cryst. 17, 437 (1994)   DOI   ScienceOn
4 J.-Y. Hwang, D.-S. Seo, and E.-J. Hahn, Liq. Cryst. 29, 4 (2002)
5 D.-S. Seo, S. Kobayashi, and M. Nishikawa, Appl. Phys. Lett. 61, 2392 (1992)   DOI
6 J.-Y. Kim, B.-Y. Oh, B.-Y. Kim, Y.-H. Kim, J.-W. Han, J.-M. Han, and D.-S. Seo, Appl. Phys. Lett. 92, 043505 (2008)   DOI   ScienceOn
7 J.-M. Han, B.-Y. Kim, J.-Y. Kim, Y.-H. Kim, J.-W. Han, J.-Y. Hwang, S.-K. Lee, D.-H. Kang, C.-H. Ok, and D.-S. Seo, J. of KIEEME(in Korean) 20, 245 (2007)
8 D.-S. Seo, K. Muroi, and S. Kobayashi, Mol. Cryst. Liq. Cryst. 213, 223 (1992)   DOI   ScienceOn
9 D.-S. Seo, S. Kobayashi, D.-Y. Kang, and H. Yokoyama, Jpn. J. Appl. Phys. 34, 3607 (1995)   DOI
10 R. Arafune, K. Sakamoto, S. Ushioda, S. Tanioka, and S. Murata, Phys. Rev. E. 58, 5914 (1998)   DOI
11 S.-K. Lee, J.-H. Kim, B.-Y. Oh, B.-Y. Kim, J.-W. Han, Y.-H. Kim, J.-M. Han, J.-Y. Hwang, C.-H. Ok, and D.-S. Seo, Jpn. J. Appl. Phys. 46, 7711 (2007)   DOI
12 D.-S. Seo, T. Oh-ide, and S. Kobayashi, Mol. Cryst. Liq. Cryst. 214, 97 (1992)   DOI   ScienceOn