河北师范大学学报—

期刊信息

刊名：河北师范大学学报（自然科学版）Journal of Hebei Normal University (Natural Science)
主办：河北师范大学
ISSN： 1000-5854
CN： 13-1061/N
中国科技核心期刊
中国期刊方阵入选期刊
中国高校优秀科技期刊
华北优秀期刊
河北省优秀科技期刊

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一类高穿透二氟甲氧桥单体的合成与性能应用研究

张兴^1,2

员国良^1,2

徐凯^1,2

孟劲松^1,2

李明^1,2

华瑞茂^1,2,3

1. 石家庄诚志永华显示材料有限公司, 河北石家庄 050091;
2. 河北省平板显示材料工程技术研究中心, 河北石家庄 050091;
3. 清华大学化学系, 北京 100084
DOI： 10.13763/j.cnki.jhebnu.nse.2018.05.006

Synthesis and Properties of High Transmittance Liquid Crystal Molecules Containing Difluoromethoxy-bridge Groups

ZHANG Xing^1,2, YUN Guoliang^1,2, XU Kai^1,2, MENG Jinsong^1,2, LI Ming^1,2, HUA Ruimao^1,2,3

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摘要/Abstract

摘要：

随着液晶显示器件向高分辨率、高像素密度方向发展，提高液晶材料在FFS模式下的穿透率成为重要的研究方向，高穿透率、高可靠性及快响应速度的混合液晶材料具有广阔的应用前景.二氟甲氧桥液晶具有低粘度、高介电、高可靠性的特点，是正性FFS模式中常用的一类单体材料.设计、合成、评测了一类末端侧向二氟取代的二氟甲氧桥液晶单体，并且考察了在液晶组合物中的应用，相对于常见单体，该系类单体的ε_⊥>8，提高正性FFS液晶的穿透率5%以上，通过液质联用、核磁氢谱、差热分析等方法对结构进行了表征，并对性能参数与液晶分子结构之间的关系作了探讨.

Abstract：

Next main development trend about LCD panels is high resolution and high pixel density.Market development urgently needs to improve transmittance of liquid crystal materials in the FFS mode.In recent years,difluoromethoxy-bridge single material have improved the LCmixture performance at low viscosity,high Δε and high reliability.A series of Lateral difluoride substituted phenyl difluoromethoxy-bridge singles were synthesized and evaluated for LCD application in this paper.The single structure was confirmed by HPLC-MS,¹HNMR,DSC and other analytical methods.Compared with general liquid crystal single material,lateral difluoride substituted phenyl difluoromethoxy-bridge singles have higher ε_⊥>8,improving the transmittance of P-FFS mode liquid crystal materials above 5% at least.The relationship between the structure and the physical property of the difluoromethoxy-bridge liquid crystal is discussed in this paper.

关键词

关键词： 液晶 ; 高穿透 ; 二氟甲氧桥 ; 残像

Key words： liquid crystal ; high transmittance ; difluoromethoxy-bridge ; image sticking

参考文献 11

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