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    Electrooptical liquid crystal system
    3.
    发明授权
    Electrooptical liquid crystal system 失效
    电光液晶系统

    公开(公告)号：US06565769B2

    公开(公告)日：2003-05-20

    申请号：US09750102

    申请日：2000-12-29

    申请人： David Coates ,  Owain Llyr Parri ,  Simon Greenfield ,  Martin David Tillin ,  Mark John Goulding ,  Patrick Nolan

    发明人： David Coates ,  Owain Llyr Parri ,  Simon Greenfield ,  Martin David Tillin ,  Mark John Goulding ,  Patrick Nolan

    IPC分类号： C09K1912

    CPC分类号： C09K19/3469 ,  C09K19/12 ,  C09K19/14 ,  C09K19/2007 ,  C09K19/322 ,  C09K19/3444 ,  C09K19/38 ,  C09K19/544 ,  C09K2019/0448 ,  C09K2019/0481 ,  Y10T428/10 ,  Y10T428/1077

    摘要： To improve switching times, especially at low temperatures, one or more reactive liquid crystalline compounds is added to a liquid crystal mixture used in an electrooptical system. The electrooptical system comprises a PDLC film comprising a liquid crystal mixture forming micro- droplets in an optically isotropic, transparent polymer matrix between 2 electrode layers, one of the refractive indices of the liquid crystal mixture is matched to the refractive index of the polymer matrix, the PDLC film exhibits an electrically switching transparency essentially independent of the polarization of the incident light, the precursor of the PDLC film comprises one or more monomers, oligomers and/or prepolymers and a photoinitiator, and is cured photoradically, the liquid crystal mixture comprises one or more compounds of the formula I  wherein R, A1, A2, Z1, Z2, X1, X2, Q, Y and n are as defined herein.

    摘要翻译： 为了改善切换时间，特别是在低温下，将一种或多种反应性液晶化合物加入到用于电光学系统的液晶混合物中。 电光系统包括PDLC膜，其包含在2个电极层之间的光学各向同性的透明聚合物基质中形成微滴的液晶混合物，液晶混合物的折射率之一与聚合物基质的折射率相匹配， PDLC膜表现出基本上与入射光的极化无关的电切换透明体，PDLC膜的前体包含一种或多种单体，低聚物和/或预聚物以及光引发剂，并且在光电偶联下固化，液晶混合物包含一种或多种 更多的式I化合物，其中R，A1，A2，Z1，Z2，X1，X2，Q，Y和n如本文所定义。

    Electrooptical liquid crystal system
    5.
    发明授权
    Electrooptical liquid crystal system 有权
    电光液晶系统

    公开(公告)号：US06187222B1

    公开(公告)日：2001-02-13

    申请号：US09506815

    申请日：2000-02-18

    申请人： David Coates ,  Owain Llyr Parri ,  Simon Greenfield ,  Martin David Tillin ,  Mark John Goulding ,  Patrick Nolan

    发明人： David Coates ,  Owain Llyr Parri ,  Simon Greenfield ,  Martin David Tillin ,  Mark John Goulding ,  Patrick Nolan

    IPC分类号： C09K1934

    CPC分类号： C09K19/3469 ,  C09K19/12 ,  C09K19/14 ,  C09K19/2007 ,  C09K19/322 ,  C09K19/3444 ,  C09K19/38 ,  C09K19/544 ,  C09K2019/0448 ,  C09K2019/0481 ,  Y10T428/10 ,  Y10T428/1077

    摘要： An electroptical system which between 2 electrode layers contains a PDLC film comprising a liquid crystal mixture forming micro-droplets in an optically isotropic, transparent polymer matrix, in which one of the refractive indices of the liquid crystal mixture is matched to the refractive index of the polymer matrix, which exhibits an electrically switchable transparency essentially independent of the polarization of the incident light, the precursor of the PDLC film of which comprises one or more monomers, oligomers and/or prepolymers and a photoinitiator, and is cured photoradically, the liquid crystal mixture of which comprises one or more compounds of the formula I in which the substituents are defined herein characterized in that the liquid crystal mixture additionally contains one or more reactive liquid crystalline compounds in order to obtain improved switching times especially at low temperatures.

    摘要翻译： 在2个电极层之间的光学系统包含PDLC膜，其包含在光学各向同性的透明聚合物基质中形成微滴的液晶混合物，其中液晶混合物的折射率之一与聚合物的折射率相匹配 基质，其表现出基本上与入射光的极化无关的电可切换透明体，其PDLC膜的前体包含一种或多种单体，低聚物和/或预聚物和光引发剂，并且在光电偶存下固化，液晶混合物 其包含一种或多种式Iin的化合物，其取代基在本文中定义，其特征在于液晶混合物另外含有一种或多种反应性液晶化合物，以便获得改进的切换时间，特别是在低温下。