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Cross-Sectional Observations of Molecular Orientation in LCDs using a UV Curable Liquid Crystal

  • Shin Masuda (a1) (a2), Toshiaki Nose (a1) and Susumu Sato (a1)

Abstract

Cross-sectional observations of the molecular orientation in typical display modes are demonstrated. ECB (Electrically Controlled Birefringence), Bend and TN (Twisted Nematic) cells are fabricated using a UV curable liquid crystal material. LC cells are photo-polymerized with applying appropriate AC voltages and cut into slices to obtain the cross-sectional images. As a result, frozen molecular orientation states in a cross section of the LC cell are successfully visualized clearly using a polarizing microscope.

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References

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1. Haas, G., Wohler, H., Fritsch, M. W. and Mlynski, D. A. in Proc. the 10th Int. Display Research Conf. (Berlin, 1990) p. 252.
2. Lien, A., Appl. Phys. Lett. 62, 1079(1993)
3. Masuda, S., Nose, T. and Sato, S., Jpn. J. Appl. Phys, 34, L1055(1995).
4. Masuda, S., Nose, T. and Sato, S. in Proc. the 15th Int. Display Research Conf. (Hamamatsu, 1995) p. 147.
5. Masuda, S., Nose, T. and Sato, S., Liq. Cryst. in press.
6. Miyashita, T., Vetter, P., Suzuki, M., Yamaguchi, Y. and Uchida, T. in Euro Display '93 (1993) p. 149.

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