DOI QR코드

DOI QR Code

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)
  • 발행 : 2006.02.01

초록

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.

키워드

참고문헌

  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 https://doi.org/10.1038/28349
  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 https://doi.org/10.1038/nature01988
  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 https://doi.org/10.1103/PhysRevE.54.5198
  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 https://doi.org/10.1103/PhysRevE.67.011702
  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 https://doi.org/10.1103/PhysRevE.54.5204

피인용 문헌

  1. Measurements of the electrokinetic forces on dielectric microparticles in nematic liquid crystals using optical trapping vol.113, pp.24, 2013, https://doi.org/10.1063/1.4809976