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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Power Consumption and Viewing Angle Characteristics Dependent on Liquid Crystal's Twist Angle in Reflective Twisted Nematic Mode

반사형 TN mode의 Twist angle에 따른 소비전력과 시야각 특성

  • 송제훈 (전북대학교 신소재공학부) ;
  • 정태봉 (전북대학교 신소재공학부) ;
  • 이승희 (전북대학교 신소재공학부)
  • Published : 2004.02.01
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Abstract

We have performed computer simulation to obtain a globa1 optimization of power consumption and viewing angle characteristic of reflective twisted nematic (R-TN) mode liquid crystal display (LCD) with sin81e polarizer and λ/4 plate. Our studies shout that with increasing the twist angle, a steepness of reflectance-voltage curve increase, operation voltages decreases, the region where contrast ratio (CR) greater than 10 increases but the reflectance of the white state starts to decrease at above the twist angle of 75$^{\circ}$. Above the twist angle of 90$^{\circ}$, the R-TN mode LCD shows the most favorable combination of low consumption and good viewing angle characteristic.

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References

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