Tetrahydropyran compounds
    2.
    发明授权
    Tetrahydropyran compounds 有权
    四氢吡喃化合物

    公开(公告)号:US08465672B2

    公开(公告)日:2013-06-18

    申请号:US12377820

    申请日:2007-07-17

    摘要: The invention relates to mesogenic tetrahydropyran compounds having at least four rings, of the formula I in which R1, A1, A2, X1, L1, L2, m and n have the meanings indicated in Claim 1, and to a process for the preparation thereof, to the use thereof in liquid-crystalline media, to liquid-crystalline media comprising at least one compound of the formula I, and to electro-optical displays containing a liquid-crystalline medium of this type.

    摘要翻译: 本发明涉及具有至少四个式I的环的介晶四氢吡喃化合物及其制备方法,其中R1,A1,A2,X1,L1,L2,m和n具有权利要求1所示的含义。 涉及其在液晶介质中的应用,包含至少一种式I化合物的液晶介质和含有这种液晶介质的电光显示器。

    Electro-optical light control element and display having a control medium with an optically isotropic phase
    7.
    发明授权
    Electro-optical light control element and display having a control medium with an optically isotropic phase 有权
    电光控制元件和具有光学各向同性相的控制介质的显示器

    公开(公告)号:US07777930B2

    公开(公告)日:2010-08-17

    申请号:US10534036

    申请日:2003-10-30

    IPC分类号: G02F1/03

    摘要: The invention relates to an electro-optical light control element and to electro-optical displays and display systems, e.g. television screens and computer monitors, which contain elements of this type. The inventive light control elements contain a mesogenic control medium (2) that exists in an optically isotropic phase when the light control elements are in operation. In addition to having a good contrast, a low dependency on viewing angle and very short switching times, the light control elements are particularly characterized by having relatively low drive voltages. The inventive electro-optical light control elements contain a solid dielectric layer (5) between the electrode structure (3, 4) and the mesogenic control layer. The invention also relates to the mesogenic control media, which are used in the electro-optical light control elements and which can exist in a blue phase.

    摘要翻译: 本发明涉及电光控制元件和电光显示器和显示系统,例如, 电视屏幕和电脑显示器,其中包含此类元素。 本发明的光控制元件包含当光控元件工作时存在于光学各向同性相中的介晶控制介质(2)。 除了具有良好的对比度,对视角的低依赖性和非常短的开关时间之外,光控制元件的特征在于具有相对较低的驱动电压。 本发明的电光控制元件在电极结构(3,4)和介晶控制层之间包含固体电介质层(5)。 本发明还涉及用于电光控制元件中并可存在于蓝相中的介晶控制介质。