Liquid crystalline compound having negative dielectric anisotropy value, liquid crystal composition containing the liquid crystal compound, and liquid crystal display element produced utilizing the liquid crystal composition
申请人:CHISSO CORPORATION
公开号:EP0964048A1
公开(公告)日:1999-12-15
The present invention provides a liquid crystal compound having a negative dielectric constant anisotropy value of a large absolute value, a controlled optically anisotropy value, a high resistivity, a high voltage retention, and high stability against heat and ultraviolet radiation; a liquid crystal composition containing such a liquid crystal compound; and a liquid crystal display element fabricated from such a liquid crystal composition.
There is disclosed a liquid crystal compound having 6,6-difluorotetrahydropyran-2,5-diyl, 6,6-difluoro-2,3-dihydro-6H-pyran-2,5-diyl, and/or 6-fluoro-3,4-dihydro-2H-pyran-2,5-diyl in the skeleton thereof; a liquid crystal composition containing such a liquid crystal compound; and a liquid crystal display element fabricated from such a liquid crystal composition.
本发明提供了一种液晶化合物,该液晶化合物具有绝对值较大的负介电常数各向异性值、可控的光学各向异性值、高电阻率、高电压保持率以及对热和紫外线辐射的高稳定性;一种含有这种液晶化合物的液晶组合物;以及一种用这种液晶组合物制造的液晶显示元件。
本发明公开了一种液晶化合物,其骨架中含有 6,6-二氟四氢吡喃-2,5-二基、6,6-二氟-2,3-二氢-6H-吡喃-2,5-二基和/或 6-氟-3,4-二氢-2H-吡喃-2,5-二基;一种含有这种液晶化合物的液晶组合物;以及一种用这种液晶组合物制造的液晶显示元件。