Title:
LIQUID CRYSTAL COMPOSITION AND LIQUID CRYSTAL DISPLAY ELEMENT
Document Type and Number:
WIPO Patent Application WO/2010/084810
Kind Code:
A1
Abstract:
Disclosed is a liquid crystal composition which satisfies at least one of such characteristics as high upper limit temperature of the nematic phase, low lower limit temperature of the nematic phase, low viscosity, adequate optical anisotropy, large negative dielectric anisotropy, high resistivity, high stability with respect to ultraviolet light and high stability with respect to heat, or which has an adequate balance between at least two of the above-mentioned characteristics. Also disclosed is an AM element having a short response time, high voltage holding ratio, high contrast ratio, long life and the like.
The liquid crystal composition contains a specific compound having a large negative dielectric anisotropy as a first component, and a specific compound containing a pyran ring and having a large negative dielectric anisotropy as a second component. The liquid crystal composition may also contain a specific compound having a low viscosity as a third component, and a specific compound having a large negative dielectric anisotropy as a fourth component. The liquid crystal composition has a negative dielectric anisotropy. The liquid crystal display element contains the composition.
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Inventors:
HATTORI Norikatsu (GOI RESEARCH CENTER 5-1, Goikaigan, Ichihara-sh, Chiba 51, 〒2908551, JP)
服部 憲和 (〒51 千葉県市原市五井海岸５番地の１ チッソ石油化学株式会社 五井研究所内 Chiba, 〒2908551, JP)
服部 憲和 (〒51 千葉県市原市五井海岸５番地の１ チッソ石油化学株式会社 五井研究所内 Chiba, 〒2908551, JP)
Application Number:
JP2010/050304
Publication Date:
July 29, 2010
Filing Date:
January 14, 2010
Export Citation:
Assignee:
CHISSO CORPORATION (3-23, Nakanoshima 3-chome Kita-ku, Osaka-sh, Osaka 08, 〒5306108, JP)
チッソ株式会社 (〒08 大阪府大阪市北区中之島三丁目３番２３号 Osaka, 〒5306108, JP)
CHISSO PETROCHEMICAL CORPORATION (2-1 Otemachi 2-chome, Chiyoda-ku Tokyo, 04, 〒1000004, JP)
チッソ石油化学株式会社 (〒04 東京都千代田区大手町二丁目２番１号 Tokyo, 〒1000004, JP)
チッソ株式会社 (〒08 大阪府大阪市北区中之島三丁目３番２３号 Osaka, 〒5306108, JP)
CHISSO PETROCHEMICAL CORPORATION (2-1 Otemachi 2-chome, Chiyoda-ku Tokyo, 04, 〒1000004, JP)
チッソ石油化学株式会社 (〒04 東京都千代田区大手町二丁目２番１号 Tokyo, 〒1000004, JP)
International Classes:
C09K19/42; C09K19/12; C09K19/14; C09K19/20; C09K19/30; C09K19/34; G02F1/13
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