Chroman dervative and liquid-crystal composition containing the compound
申请人:Matsumoto Takashi
公开号:US20060163536A1
公开(公告)日:2006-07-27
The present invention relates to a liquid crystal compound which has negative dielectric anisotropy and a large absolute value thereof; and a liquid crystal display element which contains the compound as a constituent element and has a negative value of dielectric anisotropy in the vertical alignment mode, IPS, or the like. The liquid-crystal display element has a structure including a pair of substrates and a liquid crystal sandwiched therebetween, and includes at least an alignment control layer, a transparent electrode, and a polarizing plate, in which the liquid crystal includes at least one compound having a partial structure represented by general formula (A):
(wherein W
1
and W
2
each independently represents fluorine, chlorine, —CF
3
, —CF
2
H, —OCF
3
, or —OCF
2
H) and has negative dielectric anistropy.
CHROMAN DERIVATIVE AND LIQUID-CRYSTAL COMPOSITION CONTAINING THE COMPOUND
申请人:DIC Corporation
公开号:EP1640433B1
公开(公告)日:2010-08-25
Chroman derivative and liquid-crystal composition containing the compound
申请人:Dainippon Ink and Chemicals, Inc.
公开号:US07226644B2
公开(公告)日:2007-06-05
The present invention relates to a liquid crystal compound which has negative dielectric anisotropy and a large absolute value thereof; and a liquid crystal display element which contains the compound as a constituent element and has a negative value of dielectric anisotropy in the vertical alignment mode, IPS, or the like. The liquid-crystal display element has a structure including a pair of substrates and a liquid crystal sandwiched therebetween, and includes at least an alignment control layer, a transparent electrode, and a polarizing plate, in which the liquid crystal includes at least one compound having a partial structure represented by general formula (A):
(wherein W1 and W2 each independently represents fluorine, chlorine, —CF3, —CF2H, —OCF3, or —OCF2H) and has negative dielectric anistropy.