Research on electricnic paper-like displays using dielectrophoretic force of fullerene particles immersed in liquid crystal medium

액정 매질내의 풀러린 입자의 Dielectrophoretic force를 이용한 전자종이 디스플레이의 연구

  • Kim, Mi-Kyung (Department of Polymer.Nano Science and Technology, Chonbuk National University) ;
  • Kim, Mi-Young (Department of Polymer.Nano Science and Technology, Chonbuk National University) ;
  • Kim, Sung-Min (Department of Polymer.Nano Science and Technology, Chonbuk National University) ;
  • Srivastava, Anoop Kumar (Department of Polymer.Nano Science and Technology, Chonbuk National University) ;
  • Lee, Myong-Hoon (Department of Polymer Nano Science and Technology, Chonbuk National University) ;
  • Lee, Seung-Hee (Department of Polymer Nano Science and Technology, Chonbuk National University)
  • 김미경 (전북대학교 고분자.나노공학과) ;
  • 김미영 (전북대학교 고분자.나노공학과) ;
  • 김성민 (전북대학교 고분자.나노공학과) ;
  • ;
  • 이명훈 (전북대학교 고분자.나노공학과) ;
  • 이승희 (전북대학교 고분자.나노공학과)
  • Published : 2009.04.24

Abstract

The dynamics of nano or micro sized-particles in liquid crystal (LC) medium under an external electric field is of theoretical and technological interest. A fullerene of 10 wt% was doped into the LC medium and its electric field induced motion was controlled by both in-plane and vertical electric fields. In the proposed device, pixel electrode I and pixel electrode II were designed consecutively on the bottom substrate and common electrode on the top of the substrate. When the electric field was applied, the fullerenes start to move in direction of applied electric field. The dark, grey and white states in the proposed device can be obtained by suitable combination of the polarity of applied electric field at pixel electrode I, pixel electrode II and common electrode. The dynamical motions of fullerene particles in LC medium suggest that fullerene can be designed for electronic-paper like displays.

Keywords