한국정보디스플레이학회:학술대회논문집

The Korean Infomation Display Society (한국정보디스플레이학회)
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The viewing angle switching of TN-LCD using two tilted LC layer

  • Lim, Y.J. (School of Advanced Materials Engineering, Chonbuk National University) ;
  • Choi, M.O. (School of Advanced Materials Engineering, Chonbuk National University) ;
  • Jung, E. (School of Advanced Materials Engineering, Chonbuk National University) ;
  • Lee, M.H. (School of Advanced Materials Engineering, Chonbuk National University) ;
  • Lee, S.H. (School of Advanced Materials Engineering, Chonbuk National University)
  • Published : 2006.08.22
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Abstract

We have developed twist nematic liquid crystal displays (TN-LCDs), of which the viewing angle can be controlled. The TN-LCDs have the function of switching between the wide viewing mode and narrow viewing angle mode using two tilted LC layers. Tilt angles of the two LC layers, $14^{\circ}$ and $60^{\circ}$ were required in both wide viewing angle and narrow viewing angle modes, respectively. In this way, the viewing angle range in terms of contrast ratio 5:1 can be switched from $120^{\circ}$ to $60^{\circ}$.

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