Proceedings of the Korean Institute of Electrical and Electronic Material Engineers Conference (한국전기전자재료학회:학술대회논문집)

The Korean Institute of Electrical and Electronic Material Engineers (한국전기전자재료학회)
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Effect of Carbon Nanotube Concentrations on Residual DC of a Twisted Nematic Liquid Crystal Cell

탄소 나노 튜브 함량에 따른 TN 액정 셀의 잔류 DC 연구

  • Baik, In-Su (School of Advanced Materials Engineering, Chonbuk National Univ.) ;
  • Park, Kyung-Ah (Department of Physics, Sungkyunkwan Univ.) ;
  • Jeon, Sang-Youn (School of Advanced Materials Engineering, Chonbuk National Univ.) ;
  • An, Kay-Hyeok (Department of Physics, Sungkyunkwan Univ.) ;
  • Lee, Seung-Hee (School of Advanced Materials Engineering, Chonbuk National Univ.) ;
  • Lee, Young-Hee (Department of Physics, Sungkyunkwan Univ.)
  • 백인수 (전북대학교 신소재공학부) ;
  • 박경아 (성균관대학교 물리학과) ;
  • 전상연 (전북대학교 신소재공학부) ;
  • 안계혁 (성균관대학교 물리학과) ;
  • 이승희 (전북대학교 신소재공학부) ;
  • 이영희 (성균관대학교 물리학과)
  • Published : 2005.11.10
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Abstract

We have fabricated twisted nematic (TN) liquid crystal cells doped by carbon nanotubes (CNTs) with different CNT wt. %. With a minute amount doping, multi-walled CNTs did not perturb the liquid crystal orientations at the off- and on-state. The hysteresis studies of voltage-dependent capacitance (V-C) under the influence of electric field generated by ac and dc voltage show that the residual do, which is tightly related to image sticking problem in liquid crystal displays, is greatly reduced due to ion trapping by CNTs. Also, the V-C hysteresis shows dependency of capacitance on concentration of multi-walled CNTs.

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