Jpn. J. Appl. Phys. 45 (2006) pp. 5878-5884  |Previous Article| |Next Article|  |Table of Contents|
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Stabilization of Bend Alignment Using Optical Polymerization of UV Curable Liquid Crystalline Monomers

Youichi Asakawa, Kouji Yokota, Makoto Nanaumi, Naoki Takatuka, Taiju Takahashi and Susumu Saito

(Received January 20, 2006; accepted April 5, 2006; published online July 7, 2006)

Director profiles and electrooptical properties in polymer-stabilized π cells used in optically compensated bend (OCB) liquid crystal displays (LCDs) are theoretically investigated by introducing an additional term which expresses the effect of polymer stabilization on the free energy density. The conditions required to stabilize the bend alignment definitively have been theoretically clarified and experimentally confirmed. As a result, the bend alignment is successfully stabilized even if the twist state is more stable than the bend state before the application of polymer-stabilization treatment.

URL: http://jjap.jsap.jp/link?JJAP/45/5878/
DOI: 10.1143/JJAP.45.5878

References | Citing Articles (8)

1. T. Miyashita, Y. Yamaguchi and T. Uchida: Jpn. J. Appl. Phys. 34 (1995) 177[JSAP].
2. P. L. Bos and J. A. Rahman: SID Int. Symp. Dig. Tech. Pap., 1993, p. 273.
3. K. Sueoka, H. Nakamura and Y. Taira: Proc. AM-LCD & IDW, 1996, p. 133.
4. H. Mori, E. C. Gartland, Jr., J. R. Kelly and P. J. Bos: Proc. IDW, 1998, p. 77.
5. N. Nagae, T. Miyashita, T. Uchida, Y. Yamada and Y. Ishii: SID Int. Symp. Dig. Tech. Pap., 2000, p. 26.
6. T. Konno, T. Miyashita and T. Uchida: Asia Display '95, 1995, p. 581.
7. S. H. Kim and L. C. Chien: Jpn. J. Appl. Phys. 43 (2004) 7643[JSAP].
8. H. Kikuchi, H. Yamamoto, H. Sato, M. Kawakita, K. Takizawa and H. Fujikake: Jpn. J. Appl. Phys. 44 (2005) 981[JSAP].
9. P. A. Kossyrev, J. Qi, N. V. Priezjev, R. A. Pelcovits and G. P. Crawford: SID Int. Symp. Dig. Tech. Pap., 2002, p. 506.
10. T. Takahashi, T. Umeda, H. Furue and S. Kobayashi: Jpn. J. Appl. Phys. 38 (1999) 5991[JSAP].
11. D. W. Berreman: J. Appl. Phys. 46 (1975) 3746[AIP Scitation].