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http://dx.doi.org/10.4313/TEEM.2006.7.1.030

Motion of Charged Micro-particle Immersed in Liquid Crystal Controlled by In-plane Field for Electro Paper Display

Baik, In-Su (School of Advanced Materials Engineering, Chonbuk National University)
Choi, Ju-Hwan (School of Advanced Materials Engineering, Chonbuk National University)
Jung, Byoung-Sun (School of Advanced Materials Engineering, Chonbuk National University)
Jeon, Sang-Youn (School of Advanced Materials Engineering, Chonbuk National University)
Song, Eun-Kyoung (School of Advanced Materials Engineering, Chonbuk National University)
Lee, Seung-Hee (School of Advanced Materials Engineering, Chonbuk National University)

Publication Information

Transactions on Electrical and Electronic Materials / v.7, no.1, 2006 , pp. 30-35 More about this Journal

Abstract

We have studied the motion of charged micro-particles that are immersed in a nematic liquid crystal (LC) and controlled by in-plane field. The LC is an anisotropic liquid such that the viscosity of the LC depends on flow direction, phase of the LC, and temperature, which affects the motion of the charged particles under the influence of electric field. This study shows that the motion of charged particles mainly depends on the applied voltage and the LC phase, but does not show any significant influence from the initial alignment of LC, although one may expect directional difference in drag force due to interaction between LC and particle. The viscosity changes due to temperature variations in nematic phase also show no signification influence on particle velocity when compared to the effect from varying in-plane field strength.

Keywords

Micro-particle; Electro paper display; Liquid crystal;

Citations & Related Records

Reference

1	T. Pham, N. Sheridon, and R. sprague, 'ElectroOptical Characteristics of the Gyricon Display', SID 02 Digest, p. 119,2002
2	B. Comiskey, J. D. Albert, H. Yoshizawa, and J. Jacobson, 'Electrophoretic ink for all-printed reflective electronic displays', Nature, Vol. 394, p. 253,1998 DOI ScienceOn
3	R. C. Liang, J. Hou, J. Chung, X. Wang, C. Pereira, and Y. Chen, 'Active and Passive Matrix Electrophoretic Displays by Roll-to-Roll Manufacturing Processes', SID 03 digest, p. 838, 2003
4	M. Ogawa, T. Takahashi, S. Saito, Y. Toko, Y. Iwakura, K. Kobayashi, and T. Akahane, 'Behavior of Fine Particles in Mobile Fine Particle Display Cells', SID 03 Digest, p. 584, 2003
5	E. Kishi, Y. Matsuda, Y. Uno, A. Ogawa, T. Goden, N. Ukigaya, M. Nakanishi, T. Ikeda, H. Matsuda, and K Eguchi, 'Development of In-Plane EPD', SID Tech. Digest 31, p. 24, 2000
6	R. A. Hayes and B. J. Feenstra, 'Video-speed electronic paper based on electrowetting', Nature, Vol. 425, p. 383, 2003 DOI ScienceOn
7	O. V. Kuksenok, R. W. Ruhwandl, S. V. Shiyanovskii, and E. M. Terentjev, 'Director structure around a colloid particle suspended in a nematic liquid crystal', Phys. Rev. E, Vol. 54, No.5, p. 5198, 1996 DOI ScienceOn
8	S. Grollau, N. L. Abbott, and J. J. de Pablo, 'Spherical particle immersed in a nematic liquid crystal: Effects of confinement on the director field configurations', Phys. Rev. E, Vol. 67, No.1, p. 011702, 2003 DOI
9	R. W. Ruhwandl and E. M. Terentjev, 'Friction drag on a particle moving in a nematic liquid crystal', Phys. Rev. E, Vol. 54, No.5, p. 5204,1996 DOI ScienceOn