Liquid crystal device
    1.
    发明授权
    Liquid crystal device 失效
    液晶装置

    公开(公告)号:US06577363B1

    公开(公告)日:2003-06-10

    申请号:US09381505

    申请日:1999-09-21

    IPC分类号: G02F11336

    摘要: A liquid crystal device comprises a cell (1) formed by a layer (2) of nematic or long pitch cholesteric liquid crystal material contained between two cell walls (3, 4). One wall (4) carries a surface treatment giving a first azimuthal alignment direction with or without a surface pretilt to liquid crystal molecules. The other wall (3) carries a surface treatment capable of separately providing both a preferred, substantially homeotropic alignment of the adjacent liquid crystal, and a defined azimuthal second alignment direction to the adjacent liquid crystal dependant upon liquid crystal molecular arrangement. The first and second alignment directions are approximately orthogonal. Polarisers (13, 14) may be arranged on either side of the cells walls with their polarization axes parallel or perpendicular to the two azimuthal directions. In addition one or more birefringent compensator layers (19, 20) are disposed on one side or on both sides of the cell (1). The compensator layers (19, 20) may be formed of aligned polymer layers, or aligned liquid crystal material, either in a liquid form in a cell, or dispersed in a polymer sheet, or sheets of quartz or calcite slices. The device operates between two different voltage levels, one level (V1) providing a non twisted liquid crystal molecular arrangement, the other and higher voltage (V2) providing a twisted molecular arrangement.

    摘要翻译: 液晶装置包括由包含在两个单元壁(3,4)之间的向列型或长距离胆固醇型液晶材料层(2)形成的单元(1)。 一个壁(4)承载表面处理,给出具有或不具有预倾斜到液晶分子的表面的第一方位取向方向。 另一个壁(3)承载表面处理,其能够依赖于液晶分子排列,分别提供相邻液晶的优选的基本垂直取向和相邻液晶的定义的方位角第二取向方向。 第一和第二取向方向近似正交。 偏振器(13,14)可以布置在单元格壁的两侧,其偏振轴平行或垂直于两个方位角方向。 此外,一个或多个双折射补偿层(19,20)设置在电池单元(1)的一侧或两侧。 补偿层(19,20)可以由对准的聚合物层或排列的液晶材料形成,以液体形式存在于电池中,或分散在聚合物片材中,或石英或方解石片材片。 该器件在两个不同的电压电平之间工作,一个电平(V1)提供非扭曲的液晶分子排列,另一个和更高的电压(V2)提供扭曲的分子排列。

    Liquid crystal device
    2.
    发明授权
    Liquid crystal device 失效
    液晶装置

    公开(公告)号:US06549256B1

    公开(公告)日:2003-04-15

    申请号:US09117705

    申请日:1998-08-04

    IPC分类号: G02F11337

    摘要: A liquid crystal device comprises a layer of nematic or long pitch cholesteric liquid crystal material contained between two cell walls. One wall (A) carries a surface treatment giving a first azimuthal alignment direction with or without a surface pretilt to liquid crystal molecules. The other wall (B) carries a surface treatment (17) capable of separately providing both a preferred, substantially homeotropic alignment of the adjacent liquid crystal, and a defined azimuthal second alignment direction to the adjacent liquid crystal dependent upon liquid crystal molecular arrangement. The first and second alignment directions are approximately orthogonal. Polarisers may be arranged on either side of the cell walls with their polarisation axes parallel or perpendicular to the two azimuthal directions. Alternatively an amount of dichroic dye may be incorporated in the liquid crystal material, and the device operated with one or two polarisers. The device operates between two different voltage levels, one level providing a non twisted liquid crystal molecular arrangement, the other and higher voltage providing a twisted molecular arrangement.

    摘要翻译: 液晶装置包括两个单元壁之间包含的向列型或长距离胆固醇型液晶材料层。 一个壁(A)进行表面处理,给出具有或不具有预倾斜到液晶分子的表面的第一方位取向方向。 另一壁(B)承载能够根据液晶分子排列分别提供相邻液晶的优选的,基本上垂直取向的相对液晶的定向方位第二取向方向的表面处理(17)。 第一和第二取向方向近似正交。 偏振器可以布置在单元壁的任一侧上,其偏振轴平行或垂直于两个方位角方向。 或者,可以在液晶材料中引入一定量的二色性染料,并且该装置用一个或两个偏光镜操作。 该器件在两个不同的电压电平之间工作,一个级别提供非扭曲的液晶分子排列,另一个和更高的电压提供扭曲的分子排列。

    Polymers for liquid crystal alignment
    3.
    发明授权
    Polymers for liquid crystal alignment 失效
    聚合物用于液晶对准

    公开(公告)号:US5928561A

    公开(公告)日:1999-07-27

    申请号:US29101

    申请日:1998-02-12

    IPC分类号: G02F1/1337 C09K19/56

    摘要: A method of aligning liquid crystal material by bringing into contact with a thin layer of polymer which contains the anthracenyl group, the polymer having previously been treated with plane polarised ultraviolet light. A liquid crystal cell is described wherein each of the substrates defining two opposing cell walls are coated on their inner surface with a suitable polymer for carrying out the invention. A typical embodiment of the invention would have repeat unit (II). ##STR1##

    摘要翻译: PCT No.PCT / GB96 / 02361 Sec。 371日期1998年2月12日 102(e)1998年2月12日PCT PCT 1996年9月23日PCT公布。 公开号WO97 / 13176 日期1997年04月10日通过与含有蒽基的聚合物薄层接触来调整液晶材料的方法,该聚合物预先用平面偏振紫外光处理。 描述了液晶单元,其中限定两个相对的单元壁的每个基板在其内表面上涂覆有用于实施本发明的合适的聚合物。 本发明的典型实施方案将具有重复单元(II)。

    Conducting polymers
    5.
    发明授权
    Conducting polymers 有权
    导电聚合物

    公开(公告)号:US06716371B1

    公开(公告)日:2004-04-06

    申请号:US09959617

    申请日:2001-11-06

    IPC分类号: H01B112

    摘要: This invention relates to an organic semiconductor device comprising a substrate bearing an organic layer sandwiched between electrode structures wherein the organic layer comprises a polymer of general Formula (I): wherein X is selected from H, CN, F, Cl, Br, COOCH3. Y is given by the following general Formula (II): wherein A is a phenyl group which may be further substituted in 1 or 2 or 3 positions with groups independently selected from C1-8 alkyl, CN, F, Cl; B and C are both phenyl groups which may be further substituted, independently of each other, in 1 or 2 or 3 or 4 or 5 positions with groups independently selected from C1-8 alkyl, CN, F, Cl; A, B and C may also be, independently of each other, selected from pyrimidine, pyridazine and pyridine; m=5-20,000.

    摘要翻译: 本发明涉及一种有机半导体器件,其包含承载夹在电极结构之间的有机层的衬底,其中有机层包含通式(I)的聚合物:其中X选自H,CN,F,Cl,Br,COOCH 3。 Y由以下通式(II)给出:其中A是可以在独立地选自C 1-8烷基,CN,F,Cl的基团的1或2或3位进一步取代的苯基; B和C可以是独立地彼此独立地被1或2或3或4或5个位置独立地选自C 1-8烷基,CN,F,Cl的苯基; A,B和C可以彼此独立地选自嘧啶,哒嗪和吡啶; m = 5-20,000。

    Preconcentrator device
    8.
    发明授权
    Preconcentrator device 失效
    预浓缩器装置

    公开(公告)号:US08137979B2

    公开(公告)日:2012-03-20

    申请号:US12664724

    申请日:2008-06-25

    IPC分类号: G01N33/00

    摘要: Improved preconcentrators, particularly MEMs scale preconcentrators which possess a coating comprising polymers of intrinsic microporosity (PIMs). There is further provided devices comprising the preconcentrator, and methods of preparation and use. There is particular benefit directed to the use of a MEMs scale heater coated with the PIMs for use in hand-held or field portable chemical detection devices. The polymer of intrinsic microporosity comprises a polymer, with a monomer repeat unit of Formula I wherein A is one or more optionally substituted aryl, heterocyclic, cycloalkyl or bicycloalkyl rings, π is greater than 5, preferably 5 to 10000, and X may be selected from CH, CH2, O, S, N or NH.

    摘要翻译: 改进的预浓缩器,特别是具有包含固有微孔聚合物(PIM)的涂层的MEMs比例预浓缩器。 还提供了包括预浓缩器的装置,以及制备和使用方法。 对于使用涂覆有PIM的MEMs刻度加热器用于手持式或现场便携式化学检测装置的特别有益。 本征微孔聚合物包含聚合物,其具有式I的单体重复单元,其中A是一个或多个任选取代的芳基,杂环,环烷基或双环烷基环, 大于5,优选5至10000,X可以选自CH,CH 2,O,S,N或NH。

    Ferroelectric liquid crystal devices
    10.
    发明授权
    Ferroelectric liquid crystal devices 失效
    铁电液晶装置

    公开(公告)号:US5820786A

    公开(公告)日:1998-10-13

    申请号:US656303

    申请日:1996-06-18

    摘要: Ferroelectric liquid crystal devices are described which contain liquid crystal mixtures comprising components A and B. Component A consists of one or more optically active compounds capable of imparting a spontaneous polarization to the material. Component B is selected as one or more compounds having formula (I), wherein a, b and c are independently 0, 1, 2; R.sub.1 and R.sub.2 are C.sub.1-15 straight or branched chain alkyl or alkoxy, preferably C.sub.3-12. In the above (for component B) CH=CH linking groups may be replaced by C.sub.2 H.sub.4 and CH.sub.2 O linking groups may be replaced by OCH.sub.2.

    摘要翻译: PCT No.PCT / GB94 / 02693 Sec。 371日期1996年6月18日 102(e)1996年6月18日PCT 1994年12月9日PCT PCT。 公开号WO95 / 16760 日期:1995年6月22日描述了含有包含组分A和B的液晶混合物的介电液晶器件。组分A由能够赋予材料自发极化的一种或多种光学活性化合物组成。 选择组分B作为一种或多种具有式(I)的化合物,其中a,b和c独立地为0,1,2; R1和R2是C1-15直链或支链烷基或烷氧基,优选C3-12。 在上述(对于组分B)CH = CH连接基团可以被C 2 H 4代替,CH 2 O连接基团可以被OCH 2取代。