Authentic-color Characteristic of the Fringe-field Switching Mode using a Liquid Crystal with Negative Dielectric Anisotropy

유전율 이방성이 음인 액정을 이용한 Fringe-field Switching Mode의 Authentic-color 특성

  • 송제훈 (전북대학교 신소재공학부) ;
  • 최윤석 (전북대학교 신소재공학) ;
  • 문대규 (전자부품연구원 디스플레이연구센) ;
  • 한정인 (전자부품연구원 디스플레이연구센) ;
  • 이승희 (전북대학교 신소재공학부)
  • Published : 2004.06.01


We have studied color tracking of a fringe-field driven homogenously aligned nematic liquid crystal (LC) cell with negative dielectric anisotropy and compared it with other devices such as the twisted nematic(TN) and in-plane switching(IPS) modes. According to studies, the TN device shows bluish color at grey scale and even at a low retardation cell it cannot avoid color tracking. The authentic IPS device having cell retardation value of 0.23 ${\mu}{\textrm}{m}$ also shows bluish white color. However, the FFS device shows excellent color tracking characteristics even at high retardation value of the cell while keeping high transmittance and greenish white.


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