Dark field projection display
    71.
    发明公开
    Dark field projection display 有权
    Dunkelfeld-Projektionsanzeigegerät

    公开(公告)号:EP0901031A2

    公开(公告)日:1999-03-10

    申请号:EP98306928.7

    申请日:1998-08-28

    IPC分类号: G02B26/08

    摘要: A dark field projection display comprises a spatial light modulator (7) and a light source in the form of a lamp (1) and a reflector (2). Light from the light source (1, 2) passes to a plurality of optical sub-systems, such as a split Fresnel lens (3) with the lens portions (3a, 3b) being relatively displaced. The sub-systems (3) form a spatial distribution of images of the source (1, 2) with the relative positions of the source images being different from the relative positions of input apertures of the sub-systems (3a, 3b). A plurality of reflectors, such as mirrored corner cubes and microlenses (4) arranged in a vertical array, receives the source images and forms overlapping images (8) at the modulator (7).

    摘要翻译: 暗场投影显示器包括空间光调制器(7)和灯(1)和反射器(2)形式的光源。 来自光源(1,2)的光通过多个光学子系统,例如分离的菲涅尔透镜(3),透镜部分(3a,3b)相对移位。 子系统(3)形成源(1,2)的图像的空间分布,源图像的相对位置与子系统(3a,3b)的输入孔径的相对位置不同。 多个反射器,例如以垂直阵列排列的镜像角立方体和微透镜(4),在调制器(7)处接收源图像并形成重叠图像(8)。

    Method of making a spatial light modulation
    73.
    发明公开
    Method of making a spatial light modulation 失效
    RäumlicherLichtmodulator和sein Herstellungsverfahren

    公开(公告)号:EP0887692A2

    公开(公告)日:1998-12-30

    申请号:EP98305128.5

    申请日:1998-06-29

    IPC分类号: G02F1/1335

    摘要: A method is provided of making a cell wall (1 to 5) of a liquid crystal spatial light modulator (1 to 11). The cell wall comprises a substrate (1) above which is formed a polariser (3) made of a polymer with conjugated double bonds. An alignment layer (5) is formed above the polariser (3) relative to the substrate (1). The conditions during manufacture are such that the performance of the polariser (3) is not excessively degraded. It is thus possible to provide a liquid crystal device containing an internal polariser and having acceptable performance.

    摘要翻译: 提供一种制造液晶空间光调制器(1至11)的细胞壁(1至5)的方法。 细胞壁包括基底(1),其上形成由具有共轭双键的聚合物制成的偏振器(3)。 在偏振器(3)上方相对于基板(1)形成取向层(5)。 制造时的条件使得偏振器(3)的性能不会过度劣化。 因此,可以提供一种含有内部偏振器并具有可接受性能的液晶装置。

    Diffractive spatial light modulator and display
    74.
    发明公开
    Diffractive spatial light modulator and display 失效
    Mit ung be ung ung ung ung ung ung ung ung ung ung ung ung ung ung

    公开(公告)号:EP0884628A2

    公开(公告)日:1998-12-16

    申请号:EP98304499.1

    申请日:1998-06-08

    IPC分类号: G02F1/29 G02F1/141 G09G3/36

    摘要: A diffractive spatial light modulator comprises an array of pixels (40) which can be actively or passively addressed. Each pixel comprises a material such as a ferroelectric liquid crystal addressed on one side by interdigitated elongate first and second electrodes (3a, 3b). The interdigitated electrodes are connected to an address signal generator, such as a strobe signal generator (43) and a data signal generator (41, 42). The address signal generator supplies signals which allow each pixel to be switched to any one of a non-diffractive state and a plurality of different diffractive states of different diffraction efficiencies. This may be achieved by varying the diffraction grating mark/space ratios. Alternatively or additionally, the individual interdigitated electrodes may be controlled so as to allow non-periodic gratings to be written at each pixel.

    摘要翻译: 衍射空间光调制器包括可以被主动或被动寻址的像素阵列(40)。 每个像素包括通过交错的细长的第一和第二电极(3a,3b)在一侧寻址的诸如铁电液晶的材料。 交叉电极连接到地址信号发生器,例如选通信号发生器(43)和数据信号发生器(41,42)。 地址信号发生器提供允许每个像素切换到不同衍射效率的非衍射状态和多个不同衍射状态中的任何一种的信号。 这可以通过改变衍射光栅标记/空间比来实现。 或者或另外,可以控制单独的交错电极,以便允许在每个像素处写入非周期性光栅。

    Voice menu optimization method and system
    75.
    发明公开
    Voice menu optimization method and system 失效
    方法和系统Sprachmenuoptimierung

    公开(公告)号:EP0827320A3

    公开(公告)日:1998-11-25

    申请号:EP97305579.1

    申请日:1997-07-24

    申请人: AT&T Corp.

    IPC分类号: H04M3/50

    摘要: A method and system adaptively substitutes a single dialing button sequence for a selected action in a voice menu of a telephone system. A shortcut message in the voice menu prompts a caller to select a shortcut button to acheive a shortcut action. The system then accumulates counts related to frequencies of occurrence of a plurality of actions prompted by the voice menu. The system then ranks the plurality of actions by their respective accumulated counts and determines if any one of the plurality of actions has an accumulated count greater than an accumulated count of the shortcut action. If it does, then the system causes the substitution the one of the plurality of actions and a corresponding message for the shortcut action and the shortcut message in the voice menu.

    Filter and method of making an optical device
    76.
    发明公开
    Filter and method of making an optical device 失效
    过滤器及其制备方法的光学装置

    公开(公告)号:EP0860718A3

    公开(公告)日:1998-10-21

    申请号:EP98300690.9

    申请日:1998-01-30

    IPC分类号: G02B5/30 G02B5/20

    CPC分类号: G02B5/3016

    摘要: A cholesteric film 1 is formed into an optical device comprising a plurality of layers 17, 18 and 19. The cholesteric film is initially placed in a first predetermined state, for instance heating to a first predetermined temperature, and is then irradiated with narrow band UV radiation. The properties of an upper layer 17 of the film are fixed, for instance for reflecting normally incident infrared radiation of a particular handedness. This process is repeated for different wavelengths of UV fixing radiation so as to penetrate to different depths from the surface 2 of the film 1 in order to form the layers 17, 18 and 19. This method may be used to produce a filter of reduced sensitivity to angle of incidence. In addition to the infrared reflecting layer 17, red and green reflecting layers 18 and 19 are provided. For normally incident radiation, the red and green layers 18 and 19 reflect red and green parts R and G, whereas the blue part B of the spectrum is transmitted. For off-axis illumination or viewing, the red part R is reflected by the infrared layer 17 and the green part G is reflected by the red layer 18. The birefringence of the layers 17 and 18 reverses the direction of circular polarisation of the blue part B, which thus passes through the green layer 19.

    Data signal transfer in an active matrix display
    77.
    发明公开
    Data signal transfer in an active matrix display 失效
    Datensignalübertragung在Anzeigevorrichtung mit aktiver Matrix

    公开(公告)号:EP0869471A1

    公开(公告)日:1998-10-07

    申请号:EP98302556.0

    申请日:1998-04-01

    IPC分类号: G09G3/36

    摘要: An active matrix liquid crystal display (40) includes a data line driver circuit (44) and a scan line driver circuit (42). The circuits are controlled so that a data input signal is sampled and stored to produce data signals for a first group of the control elements along the row in a first line subperiod and the stored data signals are applied to the first group of control elements in a second line subperiod, and so that the data input signal is sampled and stored to produce data signals for a second group of control elements along the row in the second line subperiod and the stored data signals are applied to the second group of control elements in a subsequent line subperiod. Such an arrangement requires only a single data memory for each data line.

    摘要翻译: 有源矩阵液晶显示器(40)包括数据线驱动电路(44)和扫描线驱动电路(42)。 控制电路使得数据输入信号被采样和存储,以便在第一行次周期中沿着行的第一组控制元件产生数据信号,并将所存储的数据信号施加到第一组控制元件 并且使得数据输入信号被采样和存储以产生沿着第二行次周期中的行的第二组控制元件的数据信号,并且所存储的数据信号被施加到第二组控制元件 后续行周期 这种布置对于每个数据线仅需要单个数据存储器。

    Liquid crystal display
    78.
    发明公开
    Liquid crystal display 失效
    Flüssigkristall-浏览量

    公开(公告)号:EP0864907A2

    公开(公告)日:1998-09-16

    申请号:EP98108421.3

    申请日:1995-09-01

    IPC分类号: G02F1/1335

    摘要: A liquid crystal display comprises, in order from the viewing side, a first glass substrate 10 carrying an electrode 12, a dichroic liquid crystal layer 16 provided with suitable alignment layers 14, 18, a half wave retarding layer 30, a quarter wave retarding layer 20, a reflector 24 and a second glass substrate 28 carrying an electrode 26. In use, in one of its states, the dichroic liquid crystal layer 16 absorbs a component of the light incident thereon, the transmitted component being plane polarised. The polarised light is incident upon the retarding layer 20 which converts the plane polarised light to circularly polarised light, this light being reflected and converted back to plane polarised light polarised in a direction perpendicular to the original plane of polarisation on returning through the retarding layer 20. Such polarised light is absorbed by the dichroic dye, no light being transmitted by the cell towards the viewer. The presence of the layer 30 improves the achromaticity of and light absorption in the dark state. In another state, the dichroic dye does not absorb, and hence does not polarise, the light, the cell then transmitting light to the viewer.

    摘要翻译: 液晶显示器从观看侧起依次包括承载电极12的第一玻璃基板10,设置有适当取向层14,18的二向色液晶层16,半波延迟层30,四分之一波长延迟层 20,反射器24和携带电极26的第二玻璃基板28.在使用中,在其状态之一中,二色性液晶层16吸收入射到其上的光的分量,透射分量是平面偏振的。 偏振光入射到延迟层20上,延迟层20将平面偏振光转换成圆偏振光,该光在通过延迟层20返回时被反射并转换成在与原始偏振平面垂直的方向上偏振的平面偏振光 这种偏振光被二色性染料吸收,细胞不会向观察者传播光。 层30的存在改善了黑暗状态下的消色差和光吸收。 在另一种状态下,二色性染料不吸收光,因此不会使光发生极化,所以细胞然后向观察者透射光。

    Filter and method of making an optical device
    79.
    发明公开
    Filter and method of making an optical device 失效
    Farbfilter和Verfahren zu dessen Herstellung

    公开(公告)号:EP0860718A2

    公开(公告)日:1998-08-26

    申请号:EP98300690.9

    申请日:1998-01-30

    IPC分类号: G02B5/30 G02B5/20

    CPC分类号: G02B5/3016

    摘要: A cholesteric film 1 is formed into an optical device comprising a plurality of layers 17, 18 and 19. The cholesteric film is initially placed in a first predetermined state, for instance heating to a first predetermined temperature, and is then irradiated with narrow band UV radiation. The properties of an upper layer 17 of the film are fixed, for instance for reflecting normally incident infrared radiation of a particular handedness. This process is repeated for different wavelengths of UV fixing radiation so as to penetrate to different depths from the surface 2 of the film 1 in order to form the layers 17, 18 and 19. This method may be used to produce a filter of reduced sensitivity to angle of incidence. In addition to the infrared reflecting layer 17, red and green reflecting layers 18 and 19 are provided. For normally incident radiation, the red and green layers 18 and 19 reflect red and green parts R and G, whereas the blue part B of the spectrum is transmitted. For off-axis illumination or viewing, the red part R is reflected by the infrared layer 17 and the green part G is reflected by the red layer 18. The birefringence of the layers 17 and 18 reverses the direction of circular polarisation of the blue part B, which thus passes through the green layer 19.

    摘要翻译: 胆甾型薄膜1形成为包括多个层17,18和19的光学装置。胆甾醇膜最初被放置在第一预定状态,例如加热到第一预定温度,然后用窄带UV 辐射。 膜的上层17的性质是固定的,例如用于反射具有特定手感度的正常入射的红外辐射。 对于不同波长的UV固定辐射重复该过程,以便从膜1的表面2穿透到不同的深度,以便形成层17,18和19.该方法可用于产生灵敏度降低的滤光器 到入射角。 除了红外线反射层17之外,还设有红色和绿色反射层18,19。 对于正常入射的辐射,红色和绿色层18和19反射红色和绿色部分R和G,而光谱的蓝色部分B被传输。 对于离轴照明或观看,红色部分R被红外层17反射,绿色部分G被红色层18反射。层17和18的双折射反转蓝色部分的圆偏振方向 B,从而穿过绿色层19.

    Method of and apparatus for addressing a ferroelectric liquid crystal device and a ferroelectric liquid crystal device
    80.
    发明公开
    Method of and apparatus for addressing a ferroelectric liquid crystal device and a ferroelectric liquid crystal device 失效
    用于寻址的铁电液晶显示器,铁电液晶显示器的方法和装置

    公开(公告)号:EP0838802A2

    公开(公告)日:1998-04-29

    申请号:EP97307638.3

    申请日:1997-09-29

    IPC分类号: G09G3/36

    摘要: A ferroelectric liquid crystal device, such as a display panel, has a plurality of pixels arranged as rows and columns in a passive matrix arrangement. Each pixel has a plurality of switching thresholds, for instance by having different regions (7, 8) of different thicknesses, so as to provide a plurality of grey levels. A voltage waveform is applied to each pixel for switching it to a desired grey level. A blanking pulse of a first polarity is applied to reset the pixel to a reset grey level. This is followed by a compensating pulse (20) of polarity opposite the first polarity, after which a waveform for selecting the desired grey level is provided. The effect of the compensating pulse (20) is to reduce the effect of τmin shift so as to provide a relatively wide driving window (13) to allow more reliable selection of an intermediate grey level.

    摘要翻译: 的铁电液晶装置中,检测作为显示面板,具有设置为在无源矩阵布置的行和列的像素的多元性。 每个像素由具有不同区域具有切换的阈值,例如有多个(7,8)不同厚度的,以便提供灰度级的复数。 的电压波形被施加到每个像素为它切换到灰度所需的水平。 第一极性的消隐脉冲被施加到所述像素复位到复位灰度级。 这是通过极性的补偿脉冲(20)与第一极性相反,afterwhich提供了一种用于选择期望的灰度级的波形其次。 所述补偿脉冲(20)的作用是降低tau蛋白分钟偏移的效果,从而提供相对宽的驱动窗口(13),以允许的中间灰度级的更可靠的选择。