低电压丙烯酸酯体系PDLC的研究  

Low Driving Voltage PDLC Made by Acrylate Polymers

作　　者：张胜茂[1,2] 刘文菊 田秋峰 牟俊霞 樊晓琴 乔云霞 王杰 梁晓[1] 唐洪[1] 

机构地区：[1]清华大学化学系,北京100084 [2]石家庄(开发区)永生华清液晶有限公司,河北石家庄05009

出　　处：《液晶与显示》2009年第6期799-803,共5页Chinese Journal of Liquid Crystals and Displays

基　　金：石家庄市科学技术研究与发展计划课题(No.07107541A)

摘　　要：选用合适的丙烯酸酯体系的聚合物制备了PDLC样品,光电测试曲线表明其驱动电压可以低至25V,改变聚合物中的稀释单体能够大幅降低PDLC的驱动电压。选用不同稀释单体的两种聚合物的介电常数及阻抗表明,聚合物的介电性能及阻抗为影响PDLC驱动电压的深层次原因,液晶的组分及PDLC的膜厚对PDLC的驱动电压也有一定影响。Low driving voltage PDLC samples were prepared by acrylate polymer in this paper. Optical-electric curve shows that the driving voltage of PDLC can be lowered to 25 V. By changing the diluent monomers in the polymer system, the driving voltage of PDLC can be changed largely. The experiment result shows that the dielectric constant and impedance of polymers play the key role in PDLC driving voltage. Besides, the composition of liquid crystal mixtures can also affect the driving voltage of PDLC to some extent.

关 键 词：聚合物分散型液晶 丙烯酸酯 介电性能 

分 类 号：TN27[电子电信—物理电子学] O753.2[理学—晶体学]