Invention Grant
- Patent Title: Nematic liquid crystal composition and liquid crystal display element that used the composition
- Patent Title (中): 向列液晶组合物和使用该组合物的液晶显示元件
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Application No.: US10540033Application Date: 2003-12-19
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Publication No.: US07718232B2Publication Date: 2010-05-18
- Inventor: Yoshikiyo Tanaka , Kiyofumi Takeuchi , Haruyoshi Takatsu
- Applicant: Yoshikiyo Tanaka , Kiyofumi Takeuchi , Haruyoshi Takatsu
- Applicant Address: JP Tokyo
- Assignee: Dainippon Ink & Chemical, Inc.
- Current Assignee: Dainippon Ink & Chemical, Inc.
- Current Assignee Address: JP Tokyo
- Agency: Edwards Angell Palmer & Dodge LLP
- Priority: JP2002-376844 20021226; JP2003-017294 20030127
- International Application: PCT/JP03/16376 WO 20031219
- International Announcement: WO2004/058917 WO 20040715
- Main IPC: C09K19/32
- IPC: C09K19/32 ; C09K19/30 ; C09K19/12

Abstract:
A nematic liquid crystal composition having a negative dielectric constant anisotropy, comprising one or more compounds selected from the compounds represented by (IA) and (IB) of 10-70% by mass, one or more compounds selected from the compounds represented by (IIA) to (IID) of 10-70% by mass, the total content of one or more compounds selected from the compounds represented by (IA) to (IID) being 35-80% by mass, and a compound represented by (III) of 20-65% by mass: wherein R1 to R14 each independently represents an alkyl group having 1 to 10 carbon atoms, etc.; Z1 to Z11 each independently represents a single bond, etc.; Z1 to Z6 and Z9 to Z11 each independently represents —CF2O—, etc.; l and m represent 0 or 1; rings A, B, C and D represent a trans-1,4-cyclohexylene group, etc.; and rings B, C and D represent a trans-1,4-cyclohexenylene group.
Public/Granted literature
- US20080149889A1 Nematic Liquid Crystal Composition and Liquid Crystal Display Element That Used the Composition Public/Granted day:2008-06-26
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