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-Optical Characterization of Polymer Dispersed Liquid Crystals for Various Concentrations of Prepolymer

전폴리머 조성에 따른 고분자 분산형 액정의 전기 광학 특성 평가

  • Yang, Kee-Jeong (Department of Chemical Engineering, Kwangwoon University) ;
  • Yoon, Do-Young (Department of Chemical Engineering, Kwangwoon University)
  • Received : 2010.07.26
  • Accepted : 2010.10.15
  • Published : 2010.11.01
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Abstract

Polymer dispersed liquid crystal (PDLC) films were prepared by the phase separation method using the liquid crystal (E7) and prepolymers. This work investigated the electro-optical characteristics of various PDLC films. In order to have good contrast ratio, the polymer refractive index must be adjusted to the ordinary refractive index of the liquid crystal. The driving voltage of PDLC films were mainly affected by elastic deformation. E7-Ebecryl810-IOA-TMPTA-HMPPO system had good threshold voltage and driving voltage and E7-Ebecryl810-EHA-PEGDA-HMPPO system had good contrast ratio.

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References

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