Film Compensation based on Discotic Film in Fringe Field Switching Mode

  • Hwang, Seong-Han (School of Advanced Materials Engineering, Chonbuk National University) ;
  • Jung, Byoung-Sun (School of Advanced Materials Engineering, Chonbuk National University) ;
  • Kim, Seong-Su (School of Advanced Materials Engineering, Chonbuk National University) ;
  • Lee, Seung-Hee (School of Advanced Materials Engineering, Chonbuk National University) ;
  • Lee, Gi-Dong (Department of Electronics Engineering, Dong-A University)
  • Published : 2007.08.27

Abstract

Film compensation to suppress a light leakage in the dark state of fringe-field switching (FFS) at off normal direction was performed by optimizing retardation value of discotic (negative A) and TAC films including in-plane switching (IPS). The normal FFS mode shows wide viewing angle characteristics that region of CR 10:1 is over $70^{\circ}$ of polar angle in all directions. The optimized FFS cell exhibits much better performances than other methods do in terms of CR and color uniformity.

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