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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Study on Initial Scattering State as a Function of Curing Temperature for Polymer Dispersed Liquid Crystal Cells with Different Mixing Ratio

고분자 분산형 액정 셀에서 혼합물의 비율에 따라 노광 온도가 초기 산란도에 미치는 영향

  • 김미숙 (전북대학교 신소재공학부) ;
  • 서영현 (전북대학교 신소재공학부) ;
  • 이명훈 (전북대학교 신소재공학부) ;
  • 이종문 (전북대학교 신소재공학부) ;
  • 이택수 (전북대학교 신소재공학부, (주)나노텍) ;
  • 이승희 (전북대학교 신소재공학부)
  • Published : 2004.01.01
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Abstract

We have fabricated the polymer dispersed liquid crystal (PDLC) cell where a control of phase separation is very important. The factors to influence the phase separation are mixing ratio of LC and polymer, curing temperature and UV intensity. In this paper, we inspected the change of a phase separation as a function of curing temperature for the mixture of E7 and. NOA65 with different ratios. When the LC concentration is less than polymer such as LC:NOA65 = 40:60wt％, the PDLC cell is influenced strongly by the curing temperature. However, when the LC concentration is much less than polymer such as LC:NOA65 = 80:20wt％, it is influenced slightly by the curing temperature. The reason is because the mixture shows upper critical solution temperature behavior and therefore it is important to know the behavior of phase separation as a function of curing temperature of the mixture.

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References

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