| 低阈值高对比度PDLC薄膜的制备 |
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| 引用本文： | 谢建辉,黄子强. 低阈值高对比度PDLC薄膜的制备[J]. 液晶与显示, 2011, 26(1): 49-53. DOI: 10.3788/YJYXS20112601.0049 |
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| 作者姓名： | 谢建辉 黄子强 |
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| 作者单位： | 电子科技大学,光电信息学院,四川,成都,610054 |
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| 基金项目： | 国家“863”基金项目(No.2009AA8042018) |
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| 摘 要： | 采用PIPS法制备聚合物分散液晶(PDLC)薄膜,通过在液晶/预聚物复合体系中添加甲基丙烯酸丁酯调控聚合物与液晶微滴界面的锚定能,以改善PDLC的电光特性。研究了甲基丙烯酸丁酯含量对PDLC膜的偏光显微镜下形貌、光电性能的影响,最后优化工艺参数,制备出低阈值、高对比度的PDLC薄膜。实验结果表明,适量加入甲基丙烯酸丁酯有利于降低阈值电压和饱和驱动电压。另外,还研究了PDLC薄膜的电光特性与驱动电压频率的关系,发现PDLC的阈值电压和饱和驱动电压均随着频率的升高而增大,同时电光曲线趋于平缓。
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| 关 键 词： | 聚合物分散液晶 甲基丙烯酸丁酯 电光特性 形貌 |
Preparation of PDLC Films with Low-Threshold Voltage and High-CR |
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| XIE Jian-hui,HUANG Zi-qiang. Preparation of PDLC Films with Low-Threshold Voltage and High-CR[J]. Chinese Journal of Liquid Crystals and Displays, 2011, 26(1): 49-53. DOI: 10.3788/YJYXS20112601.0049 |
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| Authors: | XIE Jian-hui HUANG Zi-qiang |
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| Affiliation: | XIE Jian-hui,HUANG Zi-qiang(School of Optoelectronic Information,University of Electronic Science and Technology of China,Chengdu 610054,China) |
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| Abstract: | PDLC films were prepared by means of polymerization induced phase separation(PIPS),butyl methacrylate are mixed together with photosensitive prepolymer and nematic liquid crystal in certain ratio to reduce the anchoring energy of the surface between polymer and LC droplets,and to progress the U-T characteristics as well.The influence of different butyl methacrylate ratio on PDLC films was studied.The environment factors was optimized to prepare PDLC films with the best quality,low threshold-voltage and high... |
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| Keywords: | PDLC Butyl methacrylates electro-optical properties morphology |
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