Invention Grant
- Patent Title: Liquid crystal composition and liquid crystal display device
- Patent Title (中): 液晶组成和液晶显示装置
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Application No.: US12999047Application Date: 2009-06-03
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Publication No.: US08491814B2Publication Date: 2013-07-23
- Inventor: Makoto Daigo , Hiroaki Fujita
- Applicant: Makoto Daigo , Hiroaki Fujita
- Applicant Address: JP Tokyo JP Tokyo
- Assignee: JNC Corporation,JNC Petrochemical Corporation
- Current Assignee: JNC Corporation,JNC Petrochemical Corporation
- Current Assignee Address: JP Tokyo JP Tokyo
- Agency: J.C. Patents
- Priority: JP2008-156263 20080616
- International Application: PCT/JP2009/060140 WO 20090603
- International Announcement: WO2009/154080 WO 20091223
- Main IPC: C09K19/00
- IPC: C09K19/00 ; C09K19/06 ; C09K19/34 ; C09K19/52

Abstract:
The subject is to provide a liquid crystal composition that satisfies at least one characteristic of characteristics such as a high maximum temperature of a nematic phase, a low minimum temperature of a nematic phase, a small viscosity, a suitable optical anisotropy, a negatively large dielectric anisotropy, a large specific resistance, a high stability to ultraviolet light and a high stability to heat, or that is suitably balanced regarding two characteristics thereof. The subject is to provide an AM device that has a short response time, a large voltage holding ratio, a large contrast ratio, a long service life and so forth.The invention provides a liquid crystal composition having a negative dielectric anisotropy that includes a specific four-ring compound replaced by fluorine having a high maximum temperature as a first component, and a specific compound having a negatively large anisotropy as a second component, and provides a liquid crystal display device containing the composition.
Public/Granted literature
- US20110163269A1 LIQUID CRYSTAL COMPOSITION AND LIQUID CRYSTAL DISPLAY DEVICE Public/Granted day:2011-07-07
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