Invention Grant
US08389073B2 Four-ring liquid crystal compound having tetrahydropyran and 2,2′,3,3′-tetrafluorobiphenyl, liquid crystal composition and liquid crystal display device
有权
具有四氢吡喃和2,2'，3,3'-四氟联苯，液晶组合物和液晶显示装置的四环液晶化合物
- Patent Title: Four-ring liquid crystal compound having tetrahydropyran and 2,2′,3,3′-tetrafluorobiphenyl, liquid crystal composition and liquid crystal display device
- Patent Title (中): 具有四氢吡喃和2,2'，3,3'-四氟联苯，液晶组合物和液晶显示装置的四环液晶化合物
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Application No.: US13201626Application Date: 2010-02-01
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Publication No.: US08389073B2Publication Date: 2013-03-05
- Inventor: Kenji Hirata , Tokifumi Masukawa , Junichi Yamashita , Maiko Ito
- Applicant: Kenji Hirata , Tokifumi Masukawa , Junichi Yamashita , Maiko Ito
- 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: Jianq Chyun IP Office
- Priority: JP2009-036436 20090219
- International Application: PCT/JP2010/051356 WO 20100201
- International Announcement: WO2010/095506 WO 20100826
- Main IPC: C09K19/34
- IPC: C09K19/34 ; C09K19/30 ; C09K19/32 ; C09K19/12 ; C09K19/20 ; C07D309/02 ; C07D407/02
Abstract:
The invention provides a liquid crystal compound that has a large negative dielectric anisotropy (Δ∈) and also has at least one of characteristics such as the stability to heat, light or the like, a high clearing point, a suitable refractive index anisotropy (Δn), a large negative dielectric anisotropy (Δ∈) and an excellent compatibility with other liquid crystal compounds. An excellent effect in which especially the value of the dielectric anisotropy (Δ∈) is increased negatively is achieved by use of the compound having two moieties of 1) a tetrahydropyran ring and and thus the effect is utilized.
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