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

    公开(公告)号:US5438443A

    公开(公告)日:1995-08-01

    申请号:US294603

    申请日:1994-08-23

    摘要: A liquid crystal device comprising a pair of parallel base plates and a ferroelectric liquid crystal disposed between the base plates. One of the pair of parallel base plates is provided with a plurality of stepwise elevations disposed in the form of stripes, and has been implemented with a uniaxial orientation treatment in a direction parallel to the edges of the stepwise elevations. The stepwise elevation may be formed by a transparent electrode alone or in combination with an alignment control film disposed thereon. Because of the above features, alignment defects liable to develop from the edges of the elevations are removed.

    摘要翻译: 一种液晶装置,包括一对平行基板和设置在基板之间的铁电液晶。 一对平行基板中的一个设置有以条纹形式设置的多个逐步升降,并且已经在平行于阶梯高度的边缘的方向上以单轴取向处理来实现。 可以通过单独的透明电极或与其上配置的取向控制膜组合来形成逐步升高。 由于上述特征,从高度边缘容易产生的对准缺陷被去除。

    Method and apparatus for driving liquid crystal device whereby a single
period of data signal is divided into plural pulses of varying pulse
width and polarity
    4.
    发明授权
    Method and apparatus for driving liquid crystal device whereby a single period of data signal is divided into plural pulses of varying pulse width and polarity 失效
    用于驱动液晶装置的方法和装置,其中单个周期的数据信号被分成变化的脉冲宽度和极性的多个脉冲

    公开(公告)号:US5521727A

    公开(公告)日:1996-05-28

    申请号:US166945

    申请日:1993-12-15

    IPC分类号: G09G3/20 G09G3/36 G02F1/141

    摘要: A liquid crystal device is constituted by a pair of oppositely disposed substrates respectively having thereon a group of stripe-shaped scanning electrodes and a group of stripe-shaped data electrodes disposed to intersect the scanning electrodes and a liquid crystal disposed between the scanning electrodes and the data electrodes so as to form a pixel at each intersection of the scanning electrodes and the data electrodes. The liquid crystal device is driven by applying a scanning selection signal sequentially to the scanning electrodes, and applying data signals to the data electrodes while phase modulating the data signals depending on given gradation data. One unit period of data signal is divided into plural sections, the data signals in each section are phase-modulated in one direction in accordance with an increase in gradation data, and the data signals in mutually adjacent sections are phase-modulated in mutually opposite directions in accordance with an increase in gradation data.

    摘要翻译: 液晶装置由分别具有一组条形扫描电极的一对相对设置的基板和与扫描电极交叉设置的一组条形数据电极和设置在扫描电极和第二扫描电极之间的液晶构成 数据电极,以在扫描电极和数据电极的每个交叉处形成像素。 通过将扫描选择信号顺序地施加到扫描电极来驱动液晶装置,并且根据给定的灰度数据对数据信号进行相位调制,将数据信号施加到数据电极。 一个单位周期的数据信号被分成多个部分,每个部分中的数据信号根据灰度数据的增加在一个方向进行相位调制,相互相邻的部分中的数据信号被相位调制 根据灰度数据的增加。

    Ferroelectric liquid crystal cell with particulate adhesive density
higher near side
    6.
    发明授权
    Ferroelectric liquid crystal cell with particulate adhesive density higher near side 失效
    铁电液晶电池,附着密度较高

    公开(公告)号:US5204766A

    公开(公告)日:1993-04-20

    申请号:US858338

    申请日:1992-03-26

    CPC分类号: G02F1/13392 G02F1/141

    摘要: A liquid crystal cell is constituted a pair of substrates each having an electrode thereon and disposed with their faces having the electrode opposite to each other, a spacer and a particulate adhesive disposed to leave a spacing between the substrates, and a liquid crystal disposed to fill the spacing between the substrates. The particulate adhesive is dispersed at a higher density in a region close to a side of the cell than in a central region of the cell, particularly in a direction of unidirectional alignment axis provided to the substrates. By such uneven distribution of the particulate adhesive, undesirable local thickening of the cell side due to movement of liquid crystal molecules during drive can be suppressed.

    摘要翻译: 液晶单元由一对基板构成,每个基板上具有电极,并且其表面具有彼此相对的电极,间隔物和设置成在基板之间留有间隔的颗粒状粘合剂,以及设置成填充的液晶 基板之间的间距。 颗粒状粘合剂在比电池的中心区域更接近于电池侧的区域以较高的密度分散,特别是在设置于基板的单向取向轴的方向上。 通过颗粒状粘合剂的这种不均匀分布,可以抑制由于驱动期间液晶分子的移动导致的电池侧的不期望的局部增厚。

    Liquid crystal device, alignment control method therefor and driving
method therefor
    7.
    发明授权
    Liquid crystal device, alignment control method therefor and driving method therefor 失效
    液晶装置及其对准控制方法及其驱动方法

    公开(公告)号:US5026144A

    公开(公告)日:1991-06-25

    申请号:US469809

    申请日:1990-01-22

    摘要: A liquid crystal device, comprises: a pair of opposite electrodes and a ferroelectric liquid crystal showing a first and a second alignment state depending on the direction of an electric field applied thereto and disposed between the opposite electrodes. The ferroelectric liquid crystal is placed in a stated of causing a relaxation such that, when a voltage pulse equal to the threshold is applied between the opposite electrodes, the ferroelectric liquid crystal causes a change in its molecular alignment state from one molecular alignment state toward the other molecular alignment state and continues the change in its molecular alignment state even after the removal of the voltage pulse until the change reaches a saturation in a certain period.

    摘要翻译: 一种液晶装置,包括:一对相对电极和强电介质液晶,其根据施加到其上的电场的方向而呈现第一和第二取向状态,并设置在相对电极之间。 将强电介质液晶置于引起松弛的状态,使得当在相对电极之间施加等于阈值的电压脉冲时,铁电液晶引起其分子取向状态从一个分子取向状态朝向 其他分子取向状态,即使在去除电压脉冲之后,仍继续其分子取向状态的变化,直到变化在一定周期内达到饱和。

    Ferroelectric liquid crystal element with an AC holding voltage below
the level at which the molecules migrate
    10.
    发明授权
    Ferroelectric liquid crystal element with an AC holding voltage below the level at which the molecules migrate 失效
    铁电液晶元件,其AC保持电压低于分子迁移的水平

    公开(公告)号:US5500749A

    公开(公告)日:1996-03-19

    申请号:US280583

    申请日:1994-07-26

    摘要: In a ferroelectric liquid crystal element, which is constituted by holding a chiral smectic liquid crystal exhibiting ferroelectricity between electrode substrates, and in which the liquid crystal presents a plurality of surface stabilization states according to an electric field applied through the electrode substrates, and an alternating electric field having a strength equal to or higher than a constant value is applied during a period for inhibiting transition of the surface stabilization state, and to a corresponding liquid crystal portion, within a range causing no transition, the strength of the alternating electric field to be applied during the period for inhibiting transition of the surface stabilization state, and to the corresponding liquid crystal portion is set to be equal to or lower than a predetermined value which does not cause the liquid crystal to flow.

    摘要翻译: 在通过在电极基板之间保持显示铁电性的手性近晶液晶构成的铁电液晶元件中,并且其中液晶根据通过电极基板施加的电场呈现多个表面稳定化状态,并且交替地 强度等于或高于恒定值的电场在用于抑制表面稳定化状态的转变的时段期间和相应的液晶部分在不产生转变的范围内被施加,交变电场的强度为 在抑制表面稳定化状态的转变的期间中施加,并且将相应的液晶部分设定为等于或低于不导致液晶流动的预定值。