Invention Grant
- Patent Title: Liquid crystal composition and liquid crystal display element
- Patent Title (中): 液晶组成和液晶显示元件
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Application No.: US13125249Application Date: 2009-09-25
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Publication No.: US08349414B2Publication Date: 2013-01-08
- Inventor: Takayoshi Yanai , Masayuki Saito
- Applicant: Takayoshi Yanai , Masayuki Saito
- 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: J.C. Patents
- Priority: JP2008-275151 20081027
- International Application: PCT/JP2009/066591 WO 20090925
- International Announcement: WO2010/050324 WO 20100506
- Main IPC: C09K19/30
- IPC: C09K19/30 ; C09K19/12 ; G02F1/133

Abstract:
A liquid crystal composition which satisfies at least one property selected from the properties including a high upper-limit temperature of a nematic phase, a low lower-limit temperature of a nematic phase, a low viscosity, high optical anisotropy, high positive dielectric anisotropy, a high specific resistance, high stability toward ultraviolet ray and high stability toward heat or has a proper balance between at least two properties selected from the aforementioned properties is described. And the liquid crystal composition which comprises a specific tetracyclic compound that enables the production of a nematic phase having a high upper-limit temperature and has high dielectric anisotropy as a first component and a specific compound having high positive dielectric anisotropy as a second component, and which has positive dielectric anisotropy; and a liquid crystal display element comprising the composition.
Public/Granted literature
- US20110193023A1 LIQUID CRYSTAL COMPOSITION AND LIQUID CRYSTAL DISPLAY ELEMENT Public/Granted day:2011-08-11
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