利索-全球专利检索

  1. 登录
  2. 注册

搜索结果

37 条记录 (耗时 0.032 秒)

    Liquid crystal device
    11.
    发明授权
    Liquid crystal device 失效
    液晶装置

    公开(公告)号：US6016180A

    公开(公告)日：2000-01-18

    申请号：US899440

    申请日：1997-07-24

    申请人： Madeline Joan Bradshaw ,  John Clifford Jones ,  Ian Charles Sage ,  Damien Gerard McDonnell ,  Paul Anthony Gass

    发明人： Madeline Joan Bradshaw ,  John Clifford Jones ,  Ian Charles Sage ,  Damien Gerard McDonnell ,  Paul Anthony Gass

    IPC分类号： G02F1/1333 ,  G02F1/1339 ,  G02F1/1341 ,  G02F1/141

    CPC分类号： G02F1/1341 ,  G02F1/13394 ,  G02F1/141

    摘要： A liquid crystal device is provided with a pair of substrates (12, 16) containing a liquid crystal material (22). A wall structure comprising, for example, a plurality of walls (14) is provided between the two substrates. The wall structure provides mechanical strength to the device and resistance to flow of liquid crystal material which can cause deterioration in the device performance. The walls may extend in two mutually different directions (FIG. 8, 40) to provide mechanical strength and resistance to flow in two directions while the device can still be readily filled. The device is particularly applicable to a ferroelectric liquid crystal device.

    摘要翻译： 液晶装置具有包含液晶材料（22）的一对基板（12,16）。 包括例如多个壁（14）的壁结构设置在两个基板之间。 壁结构为器件提供了机械强度并且阻止液晶材料的流动，这可能导致器件性能的劣化。 壁可以在两个相互不同的方向上延伸（图8，40），以提供在两个方向上的流动的机械强度和阻力，同时装置仍然可以容易地被填充。 该装置特别适用于铁电液晶装置。

    Bistable liquid crystal devices
    14.
    发明授权
    Bistable liquid crystal devices 有权
    双稳态液晶装置

    公开(公告)号：US07006165B1

    公开(公告)日：2006-02-28

    申请号：US10332902

    申请日：2001-07-11

    申请人： Richard Jonathan Miller ,  John Clifford Jones

    发明人： Richard Jonathan Miller ,  John Clifford Jones

    IPC分类号： G02F1/133 ,  G02F1/139 ,  G02F1/1337

    CPC分类号： G02F1/133362 ,  G02F1/1391

    摘要： In a liquid crystal device a substrate (1) favors at least two stable or metastable differently directed liquid crystal alignments, and switching means for causing the liquid crystal material to switch between the alignments includes means arranged for optically irradiating said device. The latter may provide linearly polarized light (3) for inducing a torque on the liquid crystal to determine the alignment direction, and may optionally cooperate with a second energy supplying means such as an electric field (V) for assisting and switching. Alternatively, the alignment of the liquid crystal may be switched by a second energy supplying means such as an electric field, the light serving to produce heat to aid the switching. Either or both energy sources may be applied locally for switching of selected areas or pixels. Energy levels at the bistable substrate may be adjusted by the use of an oligomeric additive (slippery surface). As shown, the alignment at the surface of an opposed substrate (2) optionally follows the alignment at substrate (1).

    摘要翻译： 在液晶装置中，基板（1）有利于至少两个稳定或亚稳态的不同方向的液晶排列，并且用于使液晶材料在对准之间切换的切换装置包括用于光学照射所述装置的装置。 后者可以提供用于在液晶上引起扭矩的线性偏振光（3）以确定对准方向，并且可以可选地与诸如用于辅助和切换的电场（V）的第二能量供应装置协作。 或者，可以通过诸如电场的第二能量供应装置切换液晶的对准，该光用于产生热量以有助于切换。 可以局部地施加一个或两个能量来切换所选择的区域或像素。 可以通过使用低聚添加剂（光滑表面）来调节双稳态基材的能级。 如图所示，在相对基板（2）的表面处的对准可选地遵循基板（1）处的对准。

    Light modulating devices
    15.
    发明授权
    Light modulating devices 失效
    光调制装置

    公开(公告)号：US06417864B1

    公开(公告)日：2002-07-09

    申请号：US09301079

    申请日：1999-04-28

    申请人： John Clifford Jones ,  Alistair Graham

    发明人： John Clifford Jones ,  Alistair Graham

    IPC分类号： G09G502

    CPC分类号： G09G3/2051 ,  G09G3/2018 ,  G09G3/3629

    摘要： When a ferroelectric liquid crystal display (FLCD) panel is addressed in such a manner as to cause adjacent or successive pixels to display different levels of greyscale, the viewer may perceive a pseudo edge effect caused by the perceived error in the transmission level at the transition between the two grey levels. In order to decrease this perceived error, the panel is addressed such that, at the transition between the two grey levels, for example between the grey levels “3” and “4”, the most significant bit of the addressing scheme incorporates an analogue grey level, for example a half level. This results in a perception level exhibiting a lower absolute error in the relative grey level than would be obtained if no special measures were taken to compensate for the perceived error at the transition. This compensation technique is applicable to addressing schemes utilizing temporal dither (TD) as well as spatial dither (SD).

    摘要翻译： 当铁电液晶显示器（FLCD）面板被寻址以使得相邻或连续的像素显示不同级别的灰度时，观察者可以感知由转换中的传输级别中的感知错误引起的伪边缘效应 在两个灰色级别之间。 为了减少这种感知的误差，面板被寻址，使得在两个灰度级之间的转换，例如灰度级“3”和“4”之间的转换，寻址方案的最高有效位包含模拟灰度 级别，例如一半级别。 这导致感知水平在相对灰度级别表现出比如果没有采取特别措施来补偿过渡时感知到的误差所获得的较低的绝对误差。 该补偿技术适用于利用时间抖动（TD）以及空间抖动（SD）的寻址方案。

    Matrix array bistable device addressing
    16.
    发明授权
    Matrix array bistable device addressing 失效
    矩阵阵列双稳态器件寻址

    公开(公告)号：US6054973A

    公开(公告)日：2000-04-25

    申请号：US868096

    申请日：1997-06-03

    申请人： Jonathan Rennie Hughes ,  John Clifford Jones ,  Marie Harper Anderson

    发明人： Jonathan Rennie Hughes ,  John Clifford Jones ,  Marie Harper Anderson

    IPC分类号： G02F1/133 ,  G09G3/36

    CPC分类号： G09G3/3629 ,  G09G2310/06 ,  G09G2310/061

    摘要： A ferroelectric liquid crystal display comprises a matrix of pixels addressable by first and second sets of electrode tracks crossing one another at the locations of the pixels. The pixels ale addressed by applying data pulses to the first set of electrode tracks and strobe pulses to the second set of electrode tracks to switch certain pixels selected by the data pulses from a first state to a second state under the effect of the voltage difference between the data pulses and the strobe pulses, and blanking pulses are applied to the second set of electrode tracks to set the pixels to the first state in advance of the application of subsequent strobe pulses to switch selected pixels from the first state to the second state. Each blanking pulse includes a blanking portion of one polarity adapted to switch the pixels to a fully switched reunion of the first state and a trailing portion of the opposite polarity adapted to assist relaxation of the pixels from the fully switched region of the first state to a relaxed region of the first state from which rapid switching of pixels to the second state is possible during application of a subsequent strobe pulse.

    摘要翻译： 铁电液晶显示器包括可通过在像素的位置处彼此交叉的第一组电极轨道和第二组电极轨迹寻址的像素矩阵。 通过将数据脉冲施加到第一组电极轨迹并选通脉冲到第二组电极轨道以将由数据脉冲选择的某些像素从第一状态切换到第二状态，在第一状态到第二状态之间的电压差的作用下， 数据脉冲和选通脉冲以及消隐脉冲被施加到第二组电极轨迹，以便在施加随后的选通脉冲之前将像素设置为第一状态，以将所选择的像素从第一状态切换到第二状态。 每个消隐脉冲包括适于将像素切换到第一状态的完全切换的团聚的一个极性的消隐部分，以及适于帮助像素从第一状态的完全切换区域松弛到第一状态的相反极性的尾部 在应用随后的选通脉冲期间可以从其中快速切换像素到第二状态的第一状态的松弛区域。

    Ferroelectric liquid crystal devices
    18.
    发明授权
    Ferroelectric liquid crystal devices 失效
    铁电液晶装置

    公开(公告)号：US06326940B1

    公开(公告)日：2001-12-04

    申请号：US09340302

    申请日：1999-06-28

    申请人： Karl Philip Lymer ,  John Clifford Jones

    发明人： Karl Philip Lymer ,  John Clifford Jones

    IPC分类号： G09G336

    CPC分类号： G09G3/3629 ,  G02F1/141 ,  G09G2310/06

    摘要： A ferroelectric liquid crystal display includes a cell comprising a layer of ferroelectric liquid crystal material contained between two transparent glass substrates having alignment layers for determining the surface alignment of the molecules in the liquid crystal material. The display further incorporates switching circuitry for switching the molecules in the liquid crystal material between a first state and a second state by means of a switching signal having a duration &tgr; and a voltage V. The liquid crystal material and the alignment layers are such that the cell exhibits a &tgr;-V response in the form of a curve having two minima separated by an intermediate maximum. Such a &tgr;-V response, which may be termed a double turnaround response, allows a high degree of discrimination between the switched and non-switched states beyond the turnaround point and offers potential addressing advantages.

    摘要翻译： 铁电液晶显示器包括一个电池，包括一个铁电液晶材料层，该层包含在具有用于确定液晶材料中分子的表面取向的取向层的两个透明玻璃基板之间。 显示器还包括用于通过具有持续时间tgr的切换信号在第一状态和第二状态之间切换液晶材料中的分子的开关电路。 和电压V.液晶材料和取向层使得电池以具有两个最小值的曲线的形式表现出具有中间最大值的曲线。 这种可能被称为双周转响应的响应允许在转换点之外的切换状态和非切换状态之间的高度辨别，并提供潜在的寻址优点。

    Discotic compounds for use in liquid crystal mixtures
    19.
    发明授权
    Discotic compounds for use in liquid crystal mixtures 失效
    用于液晶混合物的盘状化合物

    公开(公告)号：US5750050A

    公开(公告)日：1998-05-12

    申请号：US564211

    申请日：1996-02-28

    申请人： John William Goodby ,  Michael Hird ,  David Richard Beattie ,  Paul Hindmarsh ,  George William Gray ,  Damien Gerard McDonnell ,  John Clifford Jones ,  Timothy Jonathan Phillips

    发明人： John William Goodby ,  Michael Hird ,  David Richard Beattie ,  Paul Hindmarsh ,  George William Gray ,  Damien Gerard McDonnell ,  John Clifford Jones ,  Timothy Jonathan Phillips

    IPC分类号： G02F1/13 ,  C07C43/20 ,  C07C43/205 ,  C07C43/215 ,  C07C43/225 ,  C07C69/00 ,  C07C69/76 ,  C07C69/773 ,  C07C69/92 ,  C07C255/54 ,  C07C255/55 ,  C07C255/57 ,  C09K19/32 ,  C09K19/52

    CPC分类号： C07C69/92 ,  C07C43/20 ,  C09K19/32 ,  C07C2103/00 ,  C07C2103/42 ,  C09K2019/328 ,  Y10T428/10

    摘要： Liquid crystal compounds have been synthesized of general formula (I) and may be mixed with other liquid crystal compounds to give useful liquid crystal mixtures which may then be used in liquid crystal devices. Such devices include linear and non-linear electrical, optical and electro-optical devices, magneto-optical devices and devices providing responses to stimuli such as temperature changes and total or partial pressure changes. Formula (I) where each Z.sub.1-6 is given by formula (II), where Y for each of Z.sub.1-6 is independently COO, OCO, CH.sub.2 O and OCH.sub.2, m defines the number of substituents on each of Z.sub.1-6 and is independently 0-5,and X is independently for each substituent on each of Z.sub.1-6 alkyl (straight chain, branched and chiral), alkoxy (straight chain, branched or chiral), alkanoyl (straight chain, branched or chiral), alkenyl (straight chain, branched or chiral), halogen, halogenoalkyl (straight chain, branched or chiral) and CN, provided that at least one of Z.sub.-6 1 has at least one substituent X, and excluding where m is 1 for each of Z.sub.1-6, Y is COO for each of Z.sub.1-6 and X is n-alkyl or n-alkoxy positioned para to Y for each of Z.sub.1-6 and also where M is 5 for each of Z.sub.1-6, Y is COO for each of Z.sub.1-6 and for each Z.sub.1-6 X is selected as n-alkoxy positioned para to Y and fluoride for all other substituents.

    摘要翻译： PCT No.PCT / GB93 / 01291 Sec。 371日期1996年2月28日 102（e）日期1996年2月28日PCT提交1993年6月16日PCT公布。 公开号WO94 / 29263 日本时间1994年12月22日<图像（I）<图像>（II）由通式（I）合成液晶化合物，可与其他液晶化合物混合，得到有用的液晶混合物，然后使用 在液晶装置中。 这样的器件包括线性和非线性电学，光学和电光器件，磁光器件和提供对诸如温度变化和全部或部分压力变化等刺激的响应的器件。 式（I）其中每个Z1-6由式（II）给出，其中Z1-6各自独立地为COO，OCO，CH2O和OCH2，m定义Z1-6各自的取代基数，独立地为 Z-6烷基（直链，支链和手性），烷氧基（直链，支链或手性），烷酰基（直链，支链或手性），烯基（直链） 链，支链或手性），卤素，卤代烷基（直链，支链或手性）和CN，条件是Z-61中的至少一个具有至少一个取代基X，并且除了Z1-6中的每一个之外，m为1， Y是Z1-6中的每一个的COO，X是Z1-6中每一个位于对Y的正烷基或n-烷氧基，并且对于Z1-6中的每一个，M为5，Y为Z 1 - 6并且对于每个Z1-6 X选择为位于Y对位的正烷氧基和所有其它取代基的氟化物。

    Liquid crystal devices
    20.
    发明授权
    Liquid crystal devices 失效
    液晶装置

    公开(公告)号：US6094251A

    公开(公告)日：2000-07-25

    申请号：US443270

    申请日：1999-11-18

    申请人： John Clifford Jones ,  Simon David Haslam ,  Robert William Bannister

    发明人： John Clifford Jones ,  Simon David Haslam ,  Robert William Bannister

    IPC分类号： G02F1/1337 ,  G02F1/1341 ,  G02F1/141 ,  C09K19/02 ,  G02F1/13

    CPC分类号： G02F1/13378 ,  G02F1/141 ,  G02F1/1341

    摘要： A ferroelectric liquid crystal display (FLCD), which comprises a cell including a layer of chiral smetic ferroelectric liquid crystal material contained between two substrates and at least one alignment layer for determining the surface alignment of the molecules in the liquid crystal material, is manufactured as follows. After selection of a suitable material for the alignment layer, the cell is filled by introducing liquid crystal material between the substrates to which the alignment layer is applied. After filling of the cell, a heat treatment is applied to the cell by raising the cell to an elevated temperature and maintaining the cell at that temperature for a predetermined period of time. The temperature and the period of time of this heat treatment are selected to cause the surface alignment properties of the alignment layer to be changed by the heat treatment in such a manner as to promote adoption of the C2 state by the liquid crystal material on subsequent cooling to the device operating temperature.

    摘要翻译： 一种铁电液晶显示器（FLCD），其包括包含两个基板之间的手性硅质铁电液晶材料层的单元和用于确定液晶材料中的分子的表面取向的至少一个取向层，被制造为 如下。 在选择用于取向层的合适材料之后，通过在施加了取向层的基板之间引入液晶材料来填充单元。 在电池填充之后，通过将电池升高到高温并将电池保持在该温度下一段预定的时间，对电池进行热处理。 选择这种热处理的温度和时间段，以便通过热处理改变取向层的表面取向性能，以便随后的冷却促进液晶材料的C2状态的采用 到设备工作温度。