Journal of the Korean Institute of Electrical and Electronic Material Engineers (한국전기전자재료학회논문지)

The Korean Institute of Electrical and Electronic Material Engineers (한국전기전자재료학회)
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Study on Controlling Oil Movement in Electro-wetting Display

Electro-wetting Display의 오일의 움직임 제어 방법에 대한 연구

  • 김연식 (전북대학교 고분자 BIN 융합연구 사업팀, 신소재개발연구센터) ;
  • 김수영 (전북대학교 고분자 BIN 융합연구 사업팀, 신소재개발연구센터) ;
  • 김태현 (전북대학교 고분자 BIN 융합연구 사업팀, 신소재개발연구센터) ;
  • 송은경 (전북대학교 고분자 BIN 융합연구 사업팀, 신소재개발연구센터) ;
  • ;
  • 이승희 (전북대학교 고분자 BIN 융합연구 사업팀, 신소재개발연구센터)
  • Published : 2007.02.01
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Abstract

Electro-wetting display (EWD) that displays information by controling movement of fluid is one of the strong candidates for electronic paper display (EPD). In EWD cell. the movement of oil which locates between hydrophobic insulation layer and deionized water is rather random, which makes it difficult to realize gray scale, fast response time, and good color characteristics. In this paper, we investigated how to control the oil movement in specific one direction by surface treatment and pattered electrodes. From these experiments, we could control oil movement in a desired direction.

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References

  1. C. A. Kim, M. J. Joung, D. G. Yu, S. D. Ahn, S.-Y. Kang, K. S. Suh, and C. H. Kim, 'Multi-color electrophoretic display technique through the microcapsules', IDW'03, p. 1633, 2003
  2. T. Whitesides, M. Walls, R. Paolini, S. Sohn, H. Gates, M. McCreary, and J. Jacobson 'Towards video-rate microencapsulated dualparticle electrophoretic displays', SID'04 Digest, p. 133, 2004
  3. J. Hou, Y. Chen, Y.-S. Li, X. Weng, H. Li, and C. Pereira, 'Reliability and perfonnance of flexible electrophoretic displays by rollto-roll manufacturing processes', SID '04 Digest, p. 1066, 2004
  4. R. Hattori, S. Yamada, Y. Masuda, N. Nihei, and R. Sakurai, 'Ultra thin and flexible paper-like display using QR-LPD${\circleR}$ technology', SID'04 Digest, p. 136, 2004
  5. R. A. Hayes and B. J. Feenstra, 'Videospeed electronic paper based on electrowetting', Nature, Vol. 425, p. 383, 2003 https://doi.org/10.1038/nature01988
  6. Wim J. J. Welters and Lambertus G. J. Fokkink, 'Fast electrically switchable capillary effects', Langmuir, Vol. 14, No.7, p. 1535, 1998 https://doi.org/10.1021/la971153b
  7. S. Kuiper and B. H. W. Hendriks, 'Variable-focus liquid lens for miniature cameras', Appl. Phys. Lett., Vol. 85, No.7, p. 1128, 2004 https://doi.org/10.1063/1.1779954
  8. S. K. Cho, H. J. Moon, and C. J. Kim, 'Creating, transporting, cutting, and merging liquid droplets by electrowetting-based actuation for digital microfluidic circuits', J. Microelectromechanical Systems, Vol. 12, No.1, p. 70, 2003 https://doi.org/10.1109/JMEMS.2002.807467
  9. Y. B. Kim, H. Olin, S. Y. Park, J. W. Choi, L. Komitov, M. Matuszczyk, and S. T. Largewall, 'Rubbed polyimide films studied by scanning force microscopy', Appl. Phys. Lett., Vol. 66, No. 17, p. 2218, 1995 https://doi.org/10.1063/1.113172
  10. B. J. Feenstra, R. A. Hayes, I. G. J. Camps, L. M. Hage, T. Roques-Carmes, L. J. M. Schlangen, A. R. Franklin, and A. Valdes, 'Video-speed response in a reflective electrowetting display', IDW'03, p. 1633, 2003
  11. R. A. Hayes, B. J. Feenstra, I. G. J. Campus, L. M. Hage, T. Roques-Cannes, and L. J. M. Schlangen, 'A high brightness colour 160 ppi reflective display technology based on electrowetting ' , SID'04 Digest, p. 1674, 2004