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 of Homeotropic Liquid Crystal Characteristics Using Photo-polymer and Homeotropic Polyimide Blended Alignment Layer via UV Irradiation Method

UV 광배향법을 통한 광폴리머와 수직 폴리이미드 혼합 배향막의 수직 배향 특성 연구

  • Lee, Jin-Woo (Technology Policy Department, Korea Electronics Technology Institute)
  • Received : 2012.11.02
  • Accepted : 2012.11.24
  • Published : 2012.12.01
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Abstract

From UV irradiation, we achieved homeotropic liquid crystal alignment on blended photo-polymer layer which is composed of polyvinyl-cinnamate (PVCi) and homeotropic polyimide (PI). From vertical alignment (VA) mode, we measured threshold voltages by various PVCi doping concentration. Also, the rise time and fall time of VA cells were measured to verify the best doping concentration. Transmittance curves showed about 70% value between 380 nm and 780 nm wavelength which mean visible region.

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References

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