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Temporal electrical response of chiral smectic liquid crystal displays with V/W-shaped electrooptical characteristic

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EN
Abstrakty
EN
Chiral smectic liquid crystal cells showing V-shaped electrooptical switching have been reported as one of the most promising technologies for high-end display applications. In this work, time-resolved electrical behaviour of these devices has been obtained through a set of systematic measurements. The electrical equivalent circuit has been derived, a number of simulations at different frequencies have been performed using commercial software for analogue circuits. Performance of this electrical model to account for time domain variations of switching currents in chiral smectic LC displays with V/W-shaped electrooptical response has been analyzed as well.
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autor
  • Departamento de Tecnología Electrónica, Escuela Politécnica Superior, Universidad Carlos III de Madrid, Madrid, Spain, jmpena@ing.uc3m.es
Bibliografia
  • [1] S. Inui, N. Iimura, T. Suzuki, H. Iwane, K. Hiyachi, Y. Takanishi, and A Fukuda, “Thresholdless antiferroelectricity in liquid crystals and its application to displays”, J. Mater. Chem. 6, 671-673 (1996).
  • [2] B. Park, S.S. Seomun, M. Nakata, M. Takahashi, Y. Takanishi, K. Ishikawa, and H. Takezoe, “Collective molecular motion during V-shaped switching in a smectic liquid crystal”, Jpn. J. Appl. Phys. 38, 1474-1481 (1999).
  • [3] T. Matsumoto, A. Fukuda, M. Johno, Y. Motoyama, T. Yui, S.S. Seomun, and M. Yamashita, “A novel property caused by frustration between ferroelectricity and antiferroelectricity and its application to liquid crystal displays-frustoelectricity and V-shaped switching”, J. Mater. Chem. 9, 2051-2080 (1999).
  • [4] W. Haase, M. Gorkunov, L. Beresnev, and S. Pikin, “V-shaped switching: models and physical reasons”, Ferroelectrics 278, 29-36 (2002).
  • [5] S.Y.T. Tzeng, T.Y. Lin, R.H. Huang, J.J. Wu, and S.L. Wu, “Thresholdless, hysteresis-free, V-shaped, electro-optical switching for a ferroelectric liquid crystal cell”, Phys. Rev. E70, 011712 (2004).
  • [6] A.D.L. Chandani, Y. Cui, S.S. Seomun, Y. Takanishi, K. Ishikawa, and H. Takezoe, “Effect of alignment layer on V-shaped switching in a chiral smectic liquid crystal”, Liq. Cryst. 26, 167-179 (1999).
  • [7] S.P. Palto, F.V. Podgornov, W. Haase, and L.M. Blinov, “Modelling electroopcial effects in ferroelectric liquid crystals. 1. Basic equations and experimental tests”, Mol. Cryst. Liq. Cryst. 410, 95-104 (2004).
  • [8] L.M. Blinov, S.P. Palto, E.P. Pozhidaev, F.V. Podgornov, W. Haase, and A.L. Andreev, “Modelling electroopcial effects in ferroelectric liquid crystals. 2. V-shape switching in the SmC* phase”, Mol. Cryst. Liq. Cryst. 410, 105-115 (2004).
  • [9] J.M.S. Pena, J.I. Santos, I. Pérez, C. Vázquez, and A.B. Gonzalo, “An analogue-digital instrumentation system for characterizing the electrical behaviour of antiferroelectric liquid crystal display pixels”, Jpn. J. Appl. Phys. 43, 4376-4378 (2004).
  • [10] J.M.S. Pena, I. Pérez, I. Rodríguez, C. Vázquez, V. Urruchi, X. Quintana, J. De Frutos, and J.M. Otón, “Electrical model for thresholdless antiferroelectric liquid crystal cells”, Ferroelectrics 271, 1739-1744 (2002).
  • [11] T. Yamaguchi, Y. Hara, H. Fujiwara, G. Itoh, and H. Okumura, “Equivalent circuit model for thresholdless antiferroelectric liquid crystal displays”, Jpn. J. Appl. Phys. 38, 4127-4131 (1999).
  • [12] C. Bassett. A Nonlinear Capacitor Model for Use in PSpice. OrCAD PSpice Application Notes. Available: http://www.orcad.com.
  • [13] W.S. Park, J.W. Kang, C.G. Jhun, D.W. Choi, K.Y. Han, T.H Yoon, and J.C Kim, “Modified equivalent circuit model for frustrated antiferroelectric liquid crystal displays” Proc. of the 2001 Int. Meeting on Information Displays (IMID ’01), 396-399 (2001).
Typ dokumentu
Bibliografia
Identyfikator YADDA
bwmeta1.element.baztech-article-BWAK-0017-0011
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