Enhanced Super-IPS Display Performance in large size TV application

  • Park, S.J. (TV Development Division, LG.Philips LCD) ;
  • Moon, S.O. (TV Development Division, LG.Philips LCD) ;
  • Kim, J.H. (TV Development Division, LG.Philips LCD) ;
  • Kim, C.S. (TV Development Division, LG.Philips LCD) ;
  • Lim, J.C. (TV Development Division, LG.Philips LCD) ;
  • Oh, C.H. (TV Development Division, LG.Philips LCD)
  • Published : 2005.07.19

Abstract

Super In Plane Switching (S-IPS) technology is applied for large TFT-LCD panels used in TV applications. It has a lot of advantages in comparison to the alternative, VA technology. S-IPS shows excellent viewing angle properties and fast response time between intermediate gray levels. If the performance parameters which describe the actual visual performance are considered, S-IPS is much more $advantageous.^{1)}$ However, it shows relatively low contrast ratio in diagonal direction compared to viewing angle characteristic in upper/down direction in S-IPS. In order to compensate the relatively low diagonal contrast ratio, Super-IPS applying for optical film developed, but Super-IPS still has the problem of color shift in black $pattern.^{2)}$ So we improved this problem by developing Enhanced Super-IPS.

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