Viewing Angle Characteristics of the Ultra-FFS TFT-LCD

  • Kim, H.Y. (Hydis, R & D Laboratory) ;
  • Noh, J.D. (Hydis, R & D Laboratory) ;
  • Park, C.H. (Hydis, R & D Laboratory) ;
  • Koh, J.W. (Hydis, R & D Laboratory) ;
  • Lee, W.G. (Hydis, R & D Laboratory) ;
  • Park, H.S. (Hydis, R & D Laboratory) ;
  • Lee, S.H. (School of Advanced Materials Engineering, Chonbuk National University)
  • 발행 : 2002.08.21

초록

We report viewing angle characteristics of the Ultra-FFS TFT-LCD. The FFS mode is known to exhibit both a wide viewing angle and high transmittance, owing to the approximated in-plane rotation of the LC director. Nevertheless, in the bright state, the device shows bluish and yellowish color parallel and perpendicular to the LC director at off-normal directions since the LC director rotates onl.v in one direction, and in addition, the grey scale inversion exists in large oblique viewing angle. However, the Ultra-FFS shows no grey scale inversion and no color shift in wide viewing angle range.

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