Liquid crystal display including dopant phase-separated from liquid
crystal
    1.
    发明授权
    Liquid crystal display including dopant phase-separated from liquid crystal 失效
    液晶显示器包括从液晶相分离的掺杂剂

    公开(公告)号:US6151096A

    公开(公告)日:2000-11-21

    申请号:US982555

    申请日:1997-12-02

    摘要: A mixture of a ferroelectric or anti-ferroelectric liquid crystal material and a monomer having a single photopolymeric functional group is injected in the space between two electrode substrates while heat is applied. After cooling of the mixture it is irradiated with ultraviolet light at a temperature at which the liquid crystal material remains in the smectic phase so as to polymerise the monomer. Areas of liquid crystal material requiring different threshold voltages for switching are thereby produced. Alternatively such areas can be produced by changing the conditions applied to a mixture of liquid crystal material with a suitable dopant so as to cause separation of the dopant out of the liquid crystal material in order to provide a polarity of nucleation points for controlling domain formation within the liquid crystal material. Such control of domain formation can be used to provide greyscale in a liquid crystal device.

    摘要翻译: 将铁电或反铁电液晶材料与具有单一光聚合官能团的单体的混合物注入到两个电极基板之间的空间中,同时施加热量。 在冷却混合物之后,在液晶材料保留在近晶相中的温度下用紫外线照射以使单体聚合。 由此产生需要用于切换的不同阈值电压的液晶材料区域。 或者,可以通过改变施加到液晶材料与合适掺杂剂的混合物的条件来产生这样的区域,以便使掺杂剂从液晶材料中分离出来,以便提供用于控制晶界形成的成核点的极性 液晶材料。 这种域形成的控制可用于在液晶装置中提供灰度级。

    Ferroelectric liquid crystal device alignment
    2.
    发明授权
    Ferroelectric liquid crystal device alignment 失效
    铁电液晶装置对准

    公开(公告)号:US5754264A

    公开(公告)日:1998-05-19

    申请号:US687495

    申请日:1996-08-06

    摘要: A ferroelectric liquid crystal device comprises a layer of a ferroelectric liquid crystal material contained between two cell walls carrying electrode structures and a surface alignment treatment. The surface alignment is provided by a profiled surface, e.g., a grating, on at least one cell wall. The grating may be a monograting or a bigrating, with a symmetric or asymmetric profile. Such a profiling enables surface tilt and alignment anchoring energy to be independently arranged to suit liquid crystal material and device type to give a required molecular arrangement and low device defect. The grating may be provided by interferography, photolithography, embossing, ruling, or carrier layer transfer. Alignment directions on the cell walls may be parallel or non-parallel. The surface tilt on both cell walls may be the same or different values. The cell walls may be relatively rigid, e.g., glass slides, or flexible, e.g., thin plastic which may have its inner face embossed to provide one or both a grating and a set of spacer pillars.

    摘要翻译: PCT No.PCT / GB95 / 00178 Sec。 371日期:1996年8月6日 102(e)日期1996年8月6日PCT 1995年1月30日PCT PCT。 公开号WO95 / 22076 日期:1995年8月17日铁电液晶装置包括含有电极结构的两个电池壁和表面取向处理之间的铁电液晶材料层。 表面对准由至少一个细胞壁上的成型表面,例如光栅提供。 光栅可以是单一或者大的,具有对称或不对称的轮廓。 这种轮廓使得表面倾斜和对准锚固能量被独立​​地布置成适合液晶材料和器件类型,以产生所需的分子排列和低的器件缺陷。 光栅可以通过干涉,光刻,压纹,刻线或载体层转移来提供。 单元壁上的对准方向可以是平行的或不平行的。 两个细胞壁上的表面倾斜可以是相同或不同的值。 细胞壁可以是相对刚性的,例如玻璃片,或柔性例如薄塑料,其可以具有压花的内表面以提供光栅和一组间隔柱。

    Liquid crystal device alignment
    3.
    发明授权
    Liquid crystal device alignment 失效
    液晶装置对准

    公开(公告)号:US5764325A

    公开(公告)日:1998-06-09

    申请号:US693092

    申请日:1996-10-03

    摘要: A twisted nematic type of liquid crystal device comprises two cell walls enclosing a layer of a nematic or long pitch cholesteric liquid crystal material. The device has both an alignment direction and a surface tilt provided by an asymmetric grooves structure alignment on one or both walls. The alignment treatment may be provided by a shaped layer of a photolithographic material. Embossing, ruling, or transferred from a carrier layer material may alternatively provide the alignment. The amount of twist may be multiples of about 90.degree. and the device arranged between two polarisers.

    摘要翻译: PCT No.PCT / GB95 / 00180 Sec。 371日期:1996年10月3日 102(e)日期1996年10月3日PCT 1995年1月30日PCT PCT。 公开号WO95 / 22078 日期1995年8月17日扭转向列型液晶装置包括两个单元壁,其包围向列型或长距离胆固醇型液晶材料层。 该装置具有在一个或两个壁上由不对称凹槽结构对准提供的对准方向和表面倾斜。 取向处理可以由光刻材料的成形层提供。 压花,裁定或从载体层材料转移也可以提供对准。 扭转量可以是大约90度的倍数,并且该装置布置在两个偏振器之间。

    Liquid crystal device alignment layer having an asymmetric profile
grating on its surface
    4.
    发明授权
    Liquid crystal device alignment layer having an asymmetric profile grating on its surface 失效
    在其表面上具有不对称轮廓光栅的液晶器件对准层

    公开(公告)号:US5724113A

    公开(公告)日:1998-03-03

    申请号:US687494

    申请日:1996-08-06

    摘要: The invention provides a liquid crystal device having an aligned and surface tilted liquid crystal layer contained between two cell walls. The cell walls carry electrodes for applying voltages across the layer thickness to provide a display. The alignment is provided by a layer of a material that undergoes optically induced ordering during cross linking. That is, a material capable of aligning liquid crystal molecules after cross linking with polarized light. One such material is polyvinylcinnamate. The aligning layer is profiled with an asymmetric grating, eg approximately sawtooth in cross section by interferometer, oblique incidence photolithography, or embossing. The shape of the grating provides the surface tilt. The liquid crystal material may be nematic, cholesteric, or smectic.

    摘要翻译: PCT No.PCT / GB95 / 00177 Sec。 371日期:1996年8月6日 102(e)日期1996年8月6日PCT 1995年1月30日PCT PCT。 公开号WO95 / 22075 日期1995年8月17日本发明提供一种液晶装置,其具有包含在两个单元壁之间的对准且表面倾斜的液晶层。 电池壁承载用于施加跨层厚度的电压以提供显示器的电极。 该对准由在交联期间经历光学排序的材料层提供。 也就是说,在与偏振光交联后能够使液晶分子对准的材料。 一种这样的材料是聚乙烯基肉桂酸酯。 对准层用不对称光栅进行成型,例如通过干涉仪在横截面中近似锯齿,倾斜入射光刻或压花。 光栅的形状提供了表面倾斜。 液晶材料可以是向列型,胆甾醇型或近晶型。

    Liquid crystal display element and manufacturing method thereof
    7.
    发明授权
    Liquid crystal display element and manufacturing method thereof 失效
    液晶显示元件及其制造方法

    公开(公告)号:US06462796B1

    公开(公告)日:2002-10-08

    申请号:US09295900

    申请日:1999-04-21

    IPC分类号: G02F11337

    摘要: A liquid crystal display element is formed by providing a liquid crystal layer made of ferroelectric liquid crystal material between electrode substrates. One of the electrode substrate is composed of a substrate, electrodes, an insulating film, and an alignment film, while the other substrate is composed of a substrate, electrodes, an insulating film, and an alignment plate. The alignment film is formed by mixing a substance with ionic bond in an alignment film material and thereafter applying the mixture on the paired substrates on each of which the electrodes and the insulating film are provided. With this arrangement, ions are eluted from the alignment films thus formed into the liquid crystal layer, thereby becoming dispersed therethrough homogeneously. This remarkably reduces influences of display history, and half-tone display with excellent response characteristics can be realized, being not affected by display history.

    摘要翻译: 通过在电极基板之间设置由铁电液晶材料制成的液晶层来形成液晶显示元件。 电极基板中的一个由基板,电极,绝缘膜和取向膜构成,而另一个基板由基板,电极,绝缘膜和对准板构成。 取向膜通过在取向膜材料中混合物质与离子键形成,然后将该混合物施加在设置有电极和绝缘膜的成对基板上。 通过这种布置,离子从这样形成的取向膜中洗脱到液晶层中,从而均匀地分散。 这显着降低了显示历史的影响,可以实现具有优异响应特性的半色调显示,不受显示历史的影响。

    Liquid crystal device and method of addressing liquid crystal device
    9.
    发明授权
    Liquid crystal device and method of addressing liquid crystal device 失效
    液晶装置及寻址液晶装置的方法

    公开(公告)号:US06417826B1

    公开(公告)日:2002-07-09

    申请号:US09245274

    申请日:1999-02-05

    IPC分类号: G09G336

    摘要: A method of addressing a liquid crystal device having a plurality of scanning electrodes and a plurality of data electrodes defining a plurality of pixels at the intersections between at least one of the plurality of scanning electrodes and at least one of the plurality of data electrodes, the method comprising applying one frame of a scanning signal to one of the plurality of scanning electrodes, applying a data signal to at least one of the plurality of data electrodes, one frame of the scanning signal comprising n strobe portions, where n is an integer greater than 1, for co-operation with the at least one data signal to address one of the plurality of pixels, and at least one blanking portion, the number of blanking portions not exceeding (n−1).

    摘要翻译: 一种寻址具有多个扫描电极和多个数据电极的液晶装置的方法,所述多个扫描电极和多个数据电极在所述多个扫描电极中的至少一个与所述多个数据电极中的至少一个之间的交点处限定多个像素, 该方法包括将扫描信号的一帧应用于所述多个扫描电极之一,将数据信号施加到所述多个数据电极中的至少一个数据电极,所述扫描信号的一帧包括n个选通部分,其中n为更大的整数 1以上,与至少一个数据信号进行协调以寻址多个像素中的一个,以及至少一个消隐部分,不超过(n-1)的消隐部分的数量。