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.: US13060052Application Date: 2009-08-24
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Publication No.: US08206795B2Publication Date: 2012-06-26
- Inventor: Masayuki Saito , Norikatsu Hattori
- Applicant: Masayuki Saito , Norikatsu Hattori
- Applicant Address: JP Tokyo JP Tokyo
- Assignee: JNC Corporation,Chisso Petrochemical Corporation
- Current Assignee: JNC Corporation,Chisso Petrochemical Corporation
- Current Assignee Address: JP Tokyo JP Tokyo
- Agency: J.C. Patents
- Priority: JP2008-231103 20080909
- International Application: PCT/JP2009/064702 WO 20090824
- International Announcement: WO2010/029843 WO 20100318
- Main IPC: C09K19/32
- IPC: C09K19/32 ; C09K19/34 ; C09K19/30 ; C09K19/12 ; C09K19/20

Abstract:
A liquid crystal composition is provided that satisfies at least one characteristic among the 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, negatively large dielectric anisotropy, a large specific resistance, a high stability to ultraviolet light and a high stability to heat, or is properly balanced regarding at least two characteristics. An AM device is provided that has a short response time, a large voltage holding ratio, a large contrast ratio, a long service life and so forth.The liquid crystal composition contains tetrahedropyrene-2,5-diyl as the first component, a specific compound having negatively large dielectric anisotropy as the second component, and a negatively dielectric anisotropy. The liquid crystal display device contains the liquid crystal composition.
Public/Granted literature
- US20110149226A1 LIQUID CRYSTAL COMPOSITION AND LIQUID CRYSTAL DISPLAY DEVICE Public/Granted day:2011-06-23
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