Invention Grant
- Patent Title: Nematic liquid crystal composition and liquid crystal display device using the same
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Application No.: US15027646Application Date: 2014-03-27
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Publication No.: US10093857B2Publication Date: 2018-10-09
- Inventor: Shinichi Hirata , Hyobok Cha , Naomi Hatano , Tomoaki Hara , Yasuo Umezu
- Applicant: DIC Corporation
- Applicant Address: JP Tokyo
- Assignee: DIC CORPORATION
- Current Assignee: DIC CORPORATION
- Current Assignee Address: JP Tokyo
- Agency: Westerman, Hattori, Daniels & Adrian, LLP
- Priority: JP2013-210978 20131008
- International Application: PCT/JP2014/058812 WO 20140327
- International Announcement: WO2015/052948 WO 20150416
- Main IPC: G02F1/1333
- IPC: G02F1/1333 ; C09K19/32 ; C09K19/12 ; C09K19/20 ; C09K19/30 ; C09K19/02 ; C09K19/04

Abstract:
There is provided a liquid crystal composition having the following properties without reductions in refractive index anisotropy (Δn) and nematic phase-isotropic liquid phase transition temperature (Tni): sufficiently small viscosity (η), sufficiently small rotational viscosity (γ1), a large elastic constant (K33), and negative dielectric anisotropy (Δε) with a large absolute value. There is also provided a liquid crystal display device of, for example, a VA type in which such a liquid crystal composition is used and which has a high response speed and excellent display quality with defective display being eliminated or reduced. The liquid crystal display device using the liquid crystal composition of the present invention is useful as an active-matrix liquid crystal display device and can be used in liquid crystal display devices of, for instance, a VA mode and PSVA mode.
Public/Granted literature
- US20160237349A1 NEMATIC LIQUID CRYSTAL COMPOSITION AND LIQUID CRYSTAL DISPLAY DEVICE USING THE SAME Public/Granted day:2016-08-18
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