发明授权
- 专利标题: Liquid crystal composition and liquid crystal display device
- 专利标题(中): 液晶组成和液晶显示装置
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申请号: US12437212申请日: 2009-05-07
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公开(公告)号: US07851032B2公开(公告)日: 2010-12-14
- 发明人: Masayuki Saito , Teru Shimada
- 申请人: Masayuki Saito , Teru Shimada
- 申请人地址: JP Osaka JP Tokyo
- 专利权人: Chisso Corporation,Chisso Petrochemical Corporation
- 当前专利权人: Chisso Corporation,Chisso Petrochemical Corporation
- 当前专利权人地址: JP Osaka JP Tokyo
- 代理机构: Hogan Lovells US LLP
- 优先权: JP2008-122422 20080508
- 主分类号: C09K19/30
- IPC分类号: C09K19/30 ; C09K19/12 ; C09K19/20 ; C07C25/24 ; C07C43/215 ; C07C43/225
摘要:
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 contains a specific compound having especially negatively large dielectric anisotropy as the first component, a specific bicyclic compound having a small viscosity as the second component, a specific compound having a high maximum temperature as the third component, a specific compound having a negatively large dielectric anisotropy, a low minimum temperature as the fourth component. The liquid crystal composition has a negative dielectric anisotropy. The liquid crystal display device contains the liquid crystal composition.
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