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1. 发明申请

US20110141418A1 LIQUID CRYSTAL COMPOUNDS 审中-公开
标题翻译：液晶化合物
公开(公告)号：US20110141418A1
公开(公告)日：2011-06-16
申请号：US13056924
申请日：2009-07-29
申请人： Joanne E. Ennis , John W. Goodby , Rachel P. Tuffin , Ian C. Sage
发明人： Joanne E. Ennis , John W. Goodby , Rachel P. Tuffin , Ian C. Sage
IPC分类号： G02F1/1337 , C07C321/00 , C07C69/74
CPC分类号： C09K19/28 , C09K19/3087 , C09K2019/0407
摘要： The present invention relates to improved liquid crystal compounds which contain a mesogenic core which comprises a group of sub-formula (i) wherein R3 and R4 are independently selected from hydrogen, halogen or CF3, provided at least one of R3 or R4 is selected from halogen or CF3. The sub-formula (i) group may be located at any position within the mesogenic core of the liquid crystal compound, either at the terminus of the liquid crystal core or alternatively substantially in the middle of the liquid crystal core. The compounds of the invention provide compounds which when added to LC mixtures provide increasing birefringence, lowering of melting points, lowering clearing points, and lowering viscosities. These compounds and mixtures may fmd particular use in imaging or display media, such as monitors or televisions.
摘要翻译：本发明涉及含有介晶核的改进的液晶化合物，其包含其中R 3和R 4独立地选自氢，卤素或CF 3的亚式（ⅰ）基团，只要R3或R4中的至少一个选自：卤素或CF 3。子式（i）基团可以位于液晶化合物的介晶核心内的任何位置，无论是在液晶核心的末端还是基本上在液晶核心的中间。本发明的化合物提供了当加入LC混合物时提供增加的双折射，降低熔点，降低清除点和降低粘度的化合物。这些化合物和混合物可能特别用于成像或显示介质，如显示器或电视机。

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