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.: US13060053Application Date: 2009-08-25
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Publication No.: US08357436B2Publication Date: 2013-01-22
- Inventor: Masayuki Saito , Norikatsu Hattori
- Applicant: Masayuki Saito , Norikatsu Hattori
- 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: JP2008-237448 20080917
- International Application: PCT/JP2009/064749 WO 20090825
- International Announcement: WO2010/032587 WO 20100325
- Main IPC: C09K19/34
- IPC: C09K19/34 ; C09K19/30 ; C09K19/32 ; C09K19/12 ; C09K19/20

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 compound having 1-pyran-2,5-dyil as a first component, and a specific compound having a negatively large dielectric anisotropy as a second component , and provides a liquid crystal display device containing the composition.
Public/Granted literature
- US20110147658A1 LIQUID CRYSTAL COMPOSITION AND LIQUID CRYSTAL DISPLAY DEVICE Public/Granted day:2011-06-23
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