Liquid crystal device
    2.
    发明公开
    Liquid crystal device 审中-公开
    液晶装置

    公开(公告)号:EP1102110A2

    公开(公告)日:2001-05-23

    申请号:EP00310110.2

    申请日:2000-11-14

    摘要: A liquid crystal device comprises pixels which are switchable between a white state 5 and a black state 6. Spacers 10 are disposed in gaps between the pixels and are birefringent such that the spacers 10 have the same optical properties as liquid crystal in the black state 6. For example, the spacers 10 may have the same retardation as the liquid crystal layer with an optic axis fixed in the direction of the optic axis of the liquid crystal when in the black state 6.

    摘要翻译: 液晶装置包括可在白色状态5和黑色状态6之间切换的像素。间隔物10设置在像素之间的间隙中并且是双折射的,使得间隔物10具有与黑色状态6中的液晶相同的光学性质 例如,当处于黑色状态6时,间隔物10可以具有与光轴在液晶的光轴方向上固定的液晶层相同的延迟。

    Spatial light modulator and display
    3.
    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

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

    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
    4.
    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

    IPC分类号: G09G3/36

    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。

    Integrated electro-optical liquid crystal device and method of using such a device
    5.
    发明公开
    Integrated electro-optical liquid crystal device and method of using such a device 失效
    集成电光液晶装置及其使用方法。

    公开(公告)号:EP0645825A3

    公开(公告)日:1995-12-13

    申请号:EP94306897.3

    申请日:1994-09-21

    摘要: An integrated electro-optical device comprises a pixellated liquid crystal modulation layer (6) superposed over an electronic detection layer (3). Modulator pads (12) for the liquid crystal layer (6) may be formed as electrically conductive combs to achieve optical polarisation. Where the liquid crystal layer provides selective absorption of unpolarised light, and separate polarisers between the liquid crystal and detection layers are therefore unnecessary, the device comprises such a liquid crystal layer (6) superimposed over the electronic detector layer (3). Further, an integrated electro-optical device, optionally of the above type, has a plurality of pixels (A', B') of the liquid crystal layer for each pixel (AB) of the detector array. This allows optical shuttering of the detector pixels by electrically modulating the pixellated liquid crystal layer (6).

    Active matrix light modulators, use of an active matrix light modulator, and display
    8.
    发明公开
    Active matrix light modulators, use of an active matrix light modulator, and display 失效
    光调制器使用具有有源矩阵显示器中的光调制器的有源矩阵和

    公开(公告)号:EP0875881A3

    公开(公告)日:2000-03-01

    申请号:EP98303334.1

    申请日:1998-04-29

    IPC分类号: G09G3/36 G09G3/34

    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.

    Address generator for display and light modulator including a reconfigurable shift register
    9.
    发明公开
    Address generator for display and light modulator including a reconfigurable shift register 失效
    显示器和光调制器的地址发生器,包括一个可重构的移位寄存器

    公开(公告)号:EP0821338A3

    公开(公告)日:1998-11-11

    申请号:EP97304638.6

    申请日:1997-06-27

    IPC分类号: G09G3/36

    摘要: A spatial light modulator or display comprises pixels (10 11 to 10 mn ), for instance arranged as an active matrix. Addressing the pixels (10 11 to 10 mn ) is controlled by shift registers (12, 24) which are configurable so as to vary the effective resolution of the display. Each shift register (12, 24) comprises a plurality of stages (13 1 to 13 m , 23 1 to 23 n ) which are controlled to operate normally or as "followers", in which latter mode the stage output follows the output of the preceding stage.

    摘要翻译: 空间光调制器或显示器包括像素(1011至10mn),例如被布置为有源矩阵。 寻址像素(1011到10mn)由可配置的移位寄存器(12,24)控制,以便改变显示器的有效分辨率。 每个移位寄存器(12,24)包括被控制为正常操作或作为“跟随者”操作的多个级(131至13m,231至23n),其中级输出跟随前一级的输出。

    Method of etching a III-V semiconductor by means of a plasma generated in SiC14
    10.
    发明公开
    Method of etching a III-V semiconductor by means of a plasma generated in SiC14 失效
    Verfahren zumÄtzeneines III-V Halbleiters手套在SiC14 erzeugten等离子体

    公开(公告)号:EP0795893A1

    公开(公告)日:1997-09-17

    申请号:EP97301372.5

    申请日:1997-02-28

    IPC分类号: H01L21/306 H01L33/00 H01S3/19

    摘要: An (Al,Ga)As/(Al,Ga,In)P semiconductor layer structure is etched using an SiCl 4 or an SiCl 4 /(He,Ne) plasma. The etching is carried out at 0 to 80°C and at a plasma pressure below 1.33x10 -1 Pa (1 mTorr). The etched surfaces are sufficiently smooth for the etching process to be used in the production of (Al,Ga)As/(Al,Ga,In)P semiconductor lasers.

    摘要翻译: 使用SiCl 4或SiCl 4 /(He,Ne)等离子体蚀刻Al(Al,Ga)As /(Al,Ga,In)P半导体层结构。 蚀刻在0至80℃和等离子体压力低于1.33×10 -1 Pa(1mTorr)下进行。 蚀刻表面足够光滑,用于(Al,Ga)As /(Al,Ga,In)P半导体激光器的制备中的蚀刻工艺。