한국정보디스플레이학회:학술대회논문집

The Korean Infomation Display Society (한국정보디스플레이학회)
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Super High Contrast Ratio of TN mode TFT- LCD by Taguchi Design

  • Huang, Y.J. (Product Technology Center, HannStar Display Corp.) ;
  • Chao, Andy (Product Technology Center, HannStar Display Corp.) ;
  • Huang, K.T. (Product Technology Center, HannStar Display Corp.) ;
  • Hung, Y.W. (Product Technology Center, HannStar Display Corp.) ;
  • Yu, C.H. (Product Technology Center, HannStar Display Corp.) ;
  • Wu, H.H. (Product Technology Center, HannStar Display Corp.)
  • Published : 2008.10.13
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Abstract

A new high contrast LCD structure for TN mode TFT-LCD, of which the contrast ratio is 1.2 times hi gher than that of the conventional one, has been developed. The contrast ratio of TFT-LCD display can be improved by some modified materials, which like as polarizer, liquid crystal, color filter and light enhancement film. In order to know which condition can get the major contribution for the upgrade of the contrast ratio, we used Taguchi method and analyzed the contribution ratio for each composition and succeed to build up the formula of contrast ratio. From this study, we could achieve the highest CR value as 1200:1 of TN mod e TFT-LCD nowadays.

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