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.
本发明涉及一种具有负介电各向异性和大的绝对值的液晶化合物;以及一种液晶显示元件,其包含该化合物作为组分之一,并在垂直对准模式、IPS或类似模式下具有负的介电各向异性。该液晶显示元件具有包括一对基板和夹在其中的液晶的结构,并包括至少一个对准控制层、一个透明电极和一个偏振板,在其中液晶包括至少一种具有通式(A)所表示的部分结构的化合物:(式中W1和W2各自独立地表示氟、氯、-CF3、-CF2H、-OCF3或-OCF2H),并具有负的介电各向异性。