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    Stereoscopic imaging display system
    1.
    发明授权
    Stereoscopic imaging display system 有权
    立体图像显示系统

    公开(公告)号：EP0919847B1

    公开(公告)日：2005-03-23

    申请号：EP98309640.5

    申请日：1998-11-25

    申请人： Sharp Kabushiki Kaisha

    发明人： Towler, Michael John ,  Walton, Harry Garth

    IPC分类号： G02B27/26 ,  H04N13/00

    CPC分类号： G02B27/26 ,  H04N13/337 ,  H04N13/359 ,  H04N13/363

    摘要： A stereoscopic display system comprises a layer of liquid crystal material (1) confined between two transparent electrodes (2 and 3) one of which is divided into a plurality of pixels A and B. The electrodes (2 and 3) and liquid crystal material (1) are confined between two linear polarisers (4 and 5) having polarising axes normal to one another. Furthermore a patterned half wave plate (20) is used comprising a region A' having an optic axis (21) orientated at -22.5 DEG to the polarisation axis (11) of the polariser (5) and the region B' having an optic axis (22) orientated at an angle +22.5 DEG to the polarisation axis (11). In order to view a stereoscopic image, viewing spectacles are provided having different polarising arrangements immediately in front of the viewer's two eyes, only the arrangement in front of the viewer's right eye (14) being shown and comprising a half wave plate (25) having its optic axis (26) orientated at -67.5 DEG to the polarisation axis (11) and a polariser (27) having its polarisation axis (28) orientated at 90 DEG to the polarisation axis (11). In use of such a system each of the viewer's eyes will receive substantially only light from a respective one of the pixels A and B, and a substantial improvement in achromaticity is possible as compared with known systems.

    A liquid crystal display device
    2.
    发明公开
    A liquid crystal display device 审中-公开

    公开(公告)号：EP1300721A3

    公开(公告)日：2004-09-08

    申请号：EP02256872.9

    申请日：2002-10-02

    申请人： SHARP KABUSHIKI KAISHA

    发明人： Acosta, Elizabeth Jane ,  Tillin, Martin David ,  Towler, Michael John

    IPC分类号： G02F1/1337 ,  G02F1/139

    CPC分类号： G02F1/1393 ,  G02F1/133753 ,  G02F1/1396 ,  G02F2001/133757

    摘要： A liquid crystal display device comprises a first substrate, a first alignment layer (3') disposed on a surface of the first substrate, a second substrate, second alignment layer (3) disposed on a surface of the second substrate, and a liquid crystal layer disposed between the first substrate and the second substrate. The alignment direction of the first alignment layer (3') has a non-zero component in a first azimuthal direction (7') in a first region (20') of the alignment layer and has a non-zero component in a second azimuthal direction (41') different from the first azimuthal direction (7') in a second region (21') of the first alignment layer. In consequence, in zero applied electric field across the liquid crystal layer, a first liquid crystal state is stable in a first volume (22) of the liquid crystal layer defined by the first region (20') of the first alignment layer (3') and a second liquid crystal state topologically equivalent to a desired operating state of the device is stable in a second volume (23) of the liquid crystal layer defined by the second region (21') of the first alignment layer (3'). The second volume (23) of the liquid crystal layer acts as a nucleation region and promotes formation of the desired operating state in the first volume (22) of the active layer when an electric field is applied across the liquid crystal layer. The first volume (22) of the liquid crystal layer acts as an active region for displaying an image.

    Spatial light modulator and display
    4.
    发明公开
    Spatial light modulator and display 失效
    空间光调制器和显示器

    公开(公告)号：EP0899606A2

    公开(公告)日：1999-03-03

    申请号：EP98306024.5

    申请日：1998-07-29

    申请人： Sharp Kabushiki Kaisha

    发明人： Robinson, Michael Geraint ,  Tombling, Craig ,  Mayhew, Nicholas ,  Bonnett, Paul ,  Towler, Michael John

    IPC分类号： G02F1/1343 ,  G02F1/29 ,  G02F1/141

    CPC分类号： G02F1/292 ,  G02F1/134309 ,  G02F1/141 ,  G02F2201/124 ,  G03H2225/23

    摘要： A spatial light modulator of the diffractive type comprises rows and columns of pixels (3, 3'). Row electrodes 4 are connected to a strobe signal generator 27 and column electrodes are connected to a data signal generator 25. The column electrodes comprise a first elongate electrodes 1 which are connected together and to the data signal generator 25. The column electrodes further comprise second elongate electrodes 2 which are connected together, are interdigitated with the first electrodes, and are connected to the data signal generator 25. In each row, apart from the end pixels, each pixel has its first electrodes 1 connected to the second electrodes of the preceding pixel and its second electrodes 2 connected to the first electrodes 1' of the succeeding pixel.

    摘要翻译： 衍射型的空间光调制器包括行和列像素（3,3'）。 行电极4连接到选通信号发生器27，列电极连接到数据信号发生器25.列电极包括连接在一起并连接到数据信号发生器25的第一细长电极1.列电极还包括第二 连接在一起的细长电极2与第一电极相互交叉，并且连接到数据信号发生器25.在每行中，除了端部像素之外，每个像素具有连接到前面的第二电极的第一电极1 像素及其连接到后续像素的第一电极1'的第二电极2。

    Active matrix light modulators, use of an active matrix light modulator, and display
    5.
    发明公开
    Active matrix light modulators, use of an active matrix light modulator, and display 失效
    Lichtmodulatoren mit aktiver Matrix，Verwendung eines Lichtmodulators mit aktiver Matrix and Anzeige

    公开(公告)号：EP0875881A2

    公开(公告)日：1998-11-04

    申请号：EP98303334.1

    申请日：1998-04-29

    申请人： SHARP KABUSHIKI KAISHA

    发明人： Gilmour, Sandra ,  Tillin, Martin David ,  Towler, Michael John ,  Robinson, Michael Geraint ,  Tombling, Craig ,  Mayhew, Nicholas

    IPC分类号： G09G3/36

    CPC分类号： G09G3/3651 ,  G09G3/2011 ,  G09G3/3413 ,  G09G3/3614 ,  G09G3/3648 ,  G09G2300/0823 ,  G09G2300/0842 ,  G09G2310/0235 ,  G09G2310/065 ,  G09G2320/041

    摘要： An active matrix light modulator, such as a thresholdless antiferroelectric active matrix liquid crystal display, comprises an active matrix of control elements 18 disposed at intersections of data lines 22 and scan lines 20, and an array 10 of pixels which are selectively addressable by data and scan signals applied to the control elements 18 by a data driver 12 and a scan driver 14. Such addressing is controlled so that a voltage is applied to each pixel during a corresponding addressing frame by the application of data and scan signals to an associated one of the control elements 18 in order to select the optical level of the pixel for each frame, and bipolar switching is applied to control the voltage applied to the pixel during successive subframes such that, when one optical level is selected for the frame, a positive voltage is applied to the pixel during one subframe of the frame and a negative voltage of equal magnitude but opposite polarity is applied to the pixel during another subframe of the frame and, when another optical level is selected for the frame, an intermediate voltage (preferably zero voltage) is applied to the pixel during both of the subframes of the frame, so as to provide DC balancing within the frame. The required grey level within each frame is accurately reproduced and is substantially independent of the previous state of the pixel. The use of such modulators to reduce the effects of asymmetrical optical performance and colour-sequential displays are also disclosed.

    摘要翻译： 诸如无阈值反铁电有源矩阵液晶显示器的有源矩阵光调制器包括设置在数据线22和扫描线20的交点处的控制元件18的有源矩阵和可由数据选择性地寻址的像素阵列10， 扫描信号由数据驱动器12和扫描驱动器14施加到控制元件18.这样的寻址被控制，使得在对应的寻址帧期间通过将数据和扫描信号施加到相关联的一个 控制元件18为了选择每帧的像素的光学电平，并且施加双极开关以控制在连续子帧期间施加到像素的电压，使得当对于帧选择一个光学电平时，正电压 在帧的一个子帧期间施加到像素，并且在anot期间将相同大小但相反极性的负电压施加到像素 她的帧的子帧，当帧的另一个光学级别被选择时，在该帧的两个子帧期间，将一个中间电压（优选为零电压）施加到像素，以便在该帧内提供直流平衡。 每个帧内所需的灰度级被精确地再现，并且基本上与像素的先前状态无关。 还公开了使用这种调制器来减少不对称光学性能和色顺显示器的影响。

    Liquid crystal devices
    6.
    发明公开
    Liquid crystal devices 失效
    Flüssigkristallvorrichtungen

    公开(公告)号：EP0816906A3

    公开(公告)日：1998-10-07

    申请号：EP97304496.9

    申请日：1997-06-25

    申请人： SHARP KABUSHIKI KAISHA

    发明人： Tillin, Martin David ,  Towler, Michael John

    IPC分类号： G02F1/139 ,  G02F1/1347

    CPC分类号： G02F1/13471 ,  G02F1/1395 ,  G02F1/1396

    摘要： A twisted liquid crystal device comprising a liquid crystal layer (112) and first and second alignment layers (104) disposed in opposite sides of the liquid crystal layer (112). The first and second alignment layers (108,110) having respective alignment directions (126,128) which are mutually inclined. A first linear polariser (114) is disposed on the opposite side of the first alignment layer (108) to the liquid crystal layer (112). Electrodes (104,106) apply a variable voltage across the liquid crystal layer (112) which has a twisted liquid crystal structure and is arranged for operation in surface switching mode with first and second regions (112a,112b) of the liquid crystal layer (112) adjacent the alignment layers (108,110) being mutually optically de-coupled so as to define, within the liquid crystal layer in use, a pair of separate, active optical retarders having mutually inclined optic axes.

    摘要翻译： 一种扭曲液晶装置，包括液晶层（112）和设置在液晶层（112）的相对侧的第一和第二取向层（104）。 具有相互倾斜的各自对准方向（126,128）的第一和第二取向层（108,110）。 第一线性偏振器（114）设置在第一取向层（108）的与液晶层（112）相对的一侧。 电极（104,106）在具有扭曲液晶结构的液晶层（112）上施加可变电压，并配置为以液晶层（112）的第一和第二区域（112a，112b）在表面切换模式下操作， 邻近对准层（108,110）被相互光学去耦合，以便在使用中的液晶层内限定具有相互倾斜的光轴的一对分离的有源光学延迟器。

    Liquid crystal device and method of making a liquid crystal device
    7.
    发明公开
    Liquid crystal device and method of making a liquid crystal device 失效
    液晶装置及其制造方法

    公开(公告)号：EP0768562A3

    公开(公告)日：1998-04-08

    申请号：EP96307391.1

    申请日：1996-10-10

    申请人： SHARP KABUSHIKI KAISHA

    发明人： Tillin, Martin David ,  Towler, Michael John ,  Raynes, Edward Peter

    IPC分类号： G02F1/139

    CPC分类号： G02F1/1395 ,  G02F2001/13775

    摘要： A surface mode liquid crystal device is made by forming a cell (1) containing a mixture of a liquid crystal (7) and a pre-polymer. An electric field is applied across the cell (1) to arrange the liquid crystal (7) in a predetermined surface mode state, such as the V state in the case of a pi-cell configuration. The liquid crystal (7) is held in this state by the field while the pre-polymer is polymerised or cross-linked, for instance by ultraviolet irradiation. The electric field is then removed. The polymer stabilises the predetermined surface mode state, for instance preventing relaxation of the V state to the twist or splay state in the pi-cell configuration.

    Addressable matrix array for a display screen
    9.
    发明公开
    Addressable matrix array for a display screen 失效
    Bildschirm的Matrix zur Ansteurung

    公开(公告)号：EP0807845A1

    公开(公告)日：1997-11-19

    申请号：EP97303370.7

    申请日：1997-05-16

    申请人： SHARP KABUSHIKI KAISHA ,  The Secretary of State for Defence in Her Britannic Majesty's Government of The United Kingdom of Great Britain

    发明人： Walton, Harry Garth ,  Towler, Michael John

    IPC分类号： G02F1/133 ,  G02F1/1343

    CPC分类号： G02F1/133382 ,  G02F1/13439

    摘要： An addressable matrix display comprises an addressable matrix of pixels, a first set of electrode tracks 4 on one side of the matrix and a second set of electrode tracks 5 on the other side of the matrix. The sets of electrode tracks 4 and 5 cross one another at the locations of the pixels, and the pixels are switchable by the application of respective switching waveforms to the electrode tracks 4 and 5. Furthermore at least one of the electrode tracks 4 and 5 has a resistance which varies along the length of the electrode track in order to provide increased temperature uniformity over the display due to power dissipation during switching by the switching waveforms applied to the electrode tracks 4 and 5. More particularly the resistance R middle in an intermediate section of the electrode track is greater than the resistance R end in two end sections of the electrode track.

    摘要翻译： 可寻址矩阵显示器包括可寻址的像素矩阵，在矩阵的一侧上的第一组电极轨道4和在矩阵的另一侧的第二组电极轨迹5。 电极轨道4和5的集合在像素的位置处彼此交叉，并且可以通过将各个开关波形应用于电极轨道4和5来切换像素。此外，电极轨道4和5中的至少一个具有 电阻沿着电极轨迹的长度变化，以便通过施加到电极轨道4和5的开关波形在切换期间由于功率耗散而在显示器上提供增加的温度均匀性。更具体地，电阻Rmiddle在中间部分 电极轨迹大于电极轨迹的两个端部中的电阻Rend。