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.: US12490088Application Date: 2009-06-23
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Publication No.: US08110256B2Publication Date: 2012-02-07
- Inventor: Shigeru Kibe , Masayuki Saito , Hiroyuki Tanaka
- Applicant: Shigeru Kibe , Masayuki Saito , Hiroyuki Tanaka
- 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: Hogan Lovells US LLP
- Priority: JP2008-165430 20080625
- Main IPC: C09K19/30
- IPC: C09K19/30 ; C09K19/34 ; 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 large optical anisotropy, a 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 having a nematic phase contains a specific five-ring compound having a large maximum temperature as the first component, a specific compound having a small viscosity as the second component, and a specific four-ring compound having a high maximum temperature as the third component. The liquid crystal display device contains the liquid crystal composition.
Public/Granted literature
- US20090321683A1 LIQUID CRYSTAL COMPOSITION AND LIQUID CRYSTAL DISPLAY DEVICE Public/Granted day:2009-12-31
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