Journal of the Korean Institute of Electrical and Electronic Material Engineers (한국전기전자재료학회논문지)

The Korean Institute of Electrical and Electronic Material Engineers (한국전기전자재료학회)
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Electro-optic Characteristics of the fringe-field Driven-reflective Liquid Crystal Display with One Polarizer

1매의 편광판으로 구성된 반사형 Fringe-field Switching Mode의 전기 광학 특성

  • 정태봉 (전북대학교 신소재공학부) ;
  • 박지혁 (Hydis LCO 연구소, 연구 3실) ;
  • 이종문 (전북대학교 신소재공학부) ;
  • 김용배 (건국대학교 화학화) ;
  • 이승희 (전북대학교 신소재공학부)
  • Published : 2003.02.01
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Abstract

We have performed computer simulation to obtain electro-optic chracteristics of reflective liquid crystal display (LCD) using wide viewing angle LC mode, fringe field switching(FFS). Unlike other reflective LCD modes, in the FFS mode, the LC director in plance so an application to reflective display consisted of polarizer, LC layer and reflector is possible. when an incident light is 550mm, the optimal cell retardation value is 0.1365${\mu}$m and the efficiency of reflectivity is high over 90% with very little wavelength dispersion. Further, we have studied a new reflective display with polarizer, optical compensation film with half plate, LC plus reflector. The display with optimized cell parameters shows high contrast ratio (CR) over 130 with high light efficiency over 90% at normal direction and the CR greater than 5 exists over 60$^{\circ}$ of polar angle in all directions.

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References

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