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采用聚合物诱导柏分离(PIPS)方法制备了PDLC膜,研究了不同单体材料、温度、光强等对PDLC膜电光特性的影响.发现Bi-EMA-2和EHMA混合单体(质量组分为1:9)与液晶C70/02CN在折射率方面匹配较好,且在偏光显微镜下液晶微滴与聚合物单体的晶相边界清晰,易制备成对比度较高、阈值电压和饱和驱动电压较低的PDLC膜.温度和光强是控制和维持液晶与单体之间相分离速度平衡的重要工艺因素,直接影响到相分离过程中的液晶微滴形貌尺寸及其分布均一性,进而影响PDLC膜电光性能的优劣.通过工艺条件的优化,最终制备出了阈值电压为0.18 V/μm、饱和驱动电压为0.4 V/μm的PDLC膜.

参考文献

[1] 黄子强.液晶显示原理[M].北京:国防工业出版社,2008:175-184.
[2] Wang Pen-Cheng,MacDiarmid Alan G.Integration of polymer-dispersed liquid crystal composites with conducting polymer thin films toward the fabrication of flexible display devices[J].Displays,2007,28(3):101-104.
[3] Kikuchi Hiroshi,Fujii Takanori,Kawakita Masahiro,et al.High-definition imaging system based on spatial light modulators with light-scattering mode[J].Appl.Opt.,2004,43(1):132-142.
[4] Ramanitra H,Chanclou P,Dupont L,et al.Polymer-dispersed liquid crystal structure for variable optical attenuator application[J].Opt.Eng.,2004,43(6):1445-1453.
[5] Beev K,Criante L,Lucchetta D E,et al.New holographic gratings recorded in polymer-dispersed liquid crystals[J].Proc.SPIE Int.Soc.opt.Eng.,2006,6252:62522B.
[6] Kikuchi Hiroshi,Fujii Takanori,Kawakita Masahiro,et al.HDTV projection display based on high-efficiency optically addressed PDLC light valves[J].Proc.SPIE Int.Soc.Opt.Eng.,1999,3634:180-188.
[7] Vazquez Carmen,Perez Isabel,Oton Jose M,et al.Electro-optic system for online light transmission control of polymer-dispersed liquid crystal windows[J].Opt.Eng.,2002,41(7):1608-1611.
[8] Jain S C,Rout D K.Electro-optic response of polymer dispersed liquid-crystal films[JJ.J.Appl.Phys.,1991,70(11):6988-6992.
[9] Mucha M.Polymer as an important component of blends and composites with liquid crystals[J].Progress in Polymet Science,2003,28(5):837-873.
[10] 王丽萍,杨海莲,王立波,等.羟基和交联剂对PDLC膜电-光性能的影响[J].液晶与显示,2006,21(5):439-442.
[11] 石海兵,黄子强.低阈值电压聚合物网络液晶电光特性的研究[J].液晶与显示,2008,23(1):21-24.
[12] 杨文君,黄子强,夏都灵.液晶中聚合物网络的形貌研究[J].液晶与显示,2003,18(2):97-100.
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