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    NOR-BASED GRAYSCALE FOR A DIGITAL DISPLAY
    2.
    发明申请
    NOR-BASED GRAYSCALE FOR A DIGITAL DISPLAY 审中-公开
    用于数字显示的基于NOR的灰度图

    公开(公告)号：US20120069060A1

    公开(公告)日：2012-03-22

    申请号：US13247021

    申请日：2011-09-28

    申请人： Mark A. Handschy ,  James M. Dallas ,  Per Harold Larsen ,  David B. Hollenbeck

    发明人： Mark A. Handschy ,  James M. Dallas ,  Per Harold Larsen ,  David B. Hollenbeck

    IPC分类号： G09G3/36 ,  G09G5/10

    CPC分类号： G09G3/3629 ,  G09G3/2014 ,  G09G3/3618 ,  G09G2300/0809 ,  G09G2300/0857 ,  G09G2310/0235 ,  G09G2320/0285 ,  G09G2320/0673

    摘要： A digital display provides pulse-width-modulated pixel waveforms by applying a wired-NOR function to selected bits of stored image data. Image bits are selected according to a digital sequence and the wired-NOR function results in a trigger signal that may be used to switch the state of a pixel element. The pixel element may be a pixel state latch of a pixel driver circuit. The digital display may accept conventional 24-bit color video signals (one 8-bit gray-scale value for each pixel for each of the red, green, and blue primary colors), and convert this input signal to sequential color with PWM digital gray scale drive to each pixel.

    摘要翻译： 数字显示器通过对所存储的图像数据的选定位应用有线NOR功能来提供脉冲宽度调制的像素波形。 根据数字序列选择图像位，并且有线NOR功能产生可用于切换像素元件的状态的触发信号。 像素元件可以是像素驱动器电路的像素状态锁存器。 数字显示器可以接受常规的24位彩色视频信号（每个红色，绿色和蓝色原色的每个像素的一个8位灰度值），并将该输入信号转换成具有PWM数字灰度的顺序颜色 对每个像素进行刻度驱动。

    RGB illuminator with calibration via single detector servo
    6.
    发明授权
    RGB illuminator with calibration via single detector servo 失效
    RGB照明器，通过单个检测器伺服校准

    公开(公告)号：US06633301B1

    公开(公告)日：2003-10-14

    申请号：US09313227

    申请日：1999-05-17

    申请人： James M. Dallas ,  Ryan Patrick Donohue ,  Mark A. Handschy ,  Gani Jusuf ,  Colm Lysaght ,  Rainer Malzbender

    发明人： James M. Dallas ,  Ryan Patrick Donohue ,  Mark A. Handschy ,  Gani Jusuf ,  Colm Lysaght ,  Rainer Malzbender

    IPC分类号： G09G502

    CPC分类号： G09G3/3413 ,  G09G5/02 ,  G09G2310/0235 ,  G09G2320/0285 ,  G09G2320/029 ,  G09G2320/0633 ,  G09G2320/0666 ,  G09G2320/0693 ,  G09G2360/145

    摘要： A display system includes a light modulator divided into an array of individually controllable pixels and an input-driven illumination device. The illumination device is adapted to receive a variable input and is configured to direct light of variable intensity onto the modulator, depending on the input. The display system further includes a calibrating arrangement for establishing the input to the illumination device to produce a desired intensity level of light. The calibrating arrangement includes a light sensing mechanism, which senses the light from the illumination device while the illumination device is driven by an initial input. The calibration arrangement is configured to determine a comparison between the sensed light and a value representative of the desired-intensity level. The calibration arrangement further includes a control arrangement responsive to the comparison for varying the input so as to provide light of the desired intensity level.

    摘要翻译： 显示系统包括被分成独立可控像素阵列的光调制器和输入驱动照明装置。 照明装置适于接收可变输入，并且被配置为根据输入将可变强度的光引导到调制器上。 显示系统还包括校准装置，用于建立到照明装置的输入以产生期望的光强度水平。 校准装置包括光感测机构，其在通过初始输入驱动照明装置的同时感测来自照明装置的光。 校准布置被配置为确定感测的光与表示期望强度水平的值之间的比较。 校准装置还包括响应于比较以改变输入以便提供期望强度水平的光的控制装置。

    Phase masks for use in holographic data storage
    7.
    发明授权
    Phase masks for use in holographic data storage 有权
    用于全息数据存储的相位掩模

    公开(公告)号：US08107344B2

    公开(公告)日：2012-01-31

    申请号：US12639821

    申请日：2009-12-16

    申请人： Mark A. Handschy ,  Michael J. O'Callaghan ,  Christopher M. Walker

    发明人： Mark A. Handschy ,  Michael J. O'Callaghan ,  Christopher M. Walker

    IPC分类号： G11B7/00

    CPC分类号： G02F1/292 ,  G02F1/13363 ,  G02F2001/133565 ,  G03H1/02 ,  G03H1/16 ,  G03H2001/0224 ,  G03H2223/13 ,  G11B7/0065 ,  G11B7/128 ,  G11B7/1369

    摘要： A spatial light modulator (SLM) having a phase mask that is provided as an internal component thereof. The phase mask can be provided as a multilevel surface of relatively higher index of refraction material on an inner surface of a transmissive cover window or as a separate transmissive window between the cover window and the pixels of the SLM. If the phase mask is to be used with a liquid crystal SLM, then it may be desirable to planarize the surface of the cover window contacting the liquid crystal by providing a layer of relatively lower index of refraction material adjacent the multilevel surface. The phase mask can also be provided on the transmissive cover window by patterned ion deposition, exposing patterned light to a photopolymeric material, or in some other suitable fashion. Arranging for the pixel electrodes to be at one of multiple levels rather than lying in an exactly planar relationship can also effectively create the phase mask.

    摘要翻译： 具有作为其内部部件提供的相位掩模的空间光调制器（SLM）。 相位掩模可以被提供为在透射盖窗的内表面上的相对较高的折射率材料的多层表面，或者作为在窗口窗口和SLM的像素之间的单独透射窗口。 如果相位掩模与液晶SLM一起使用，则可能需要通过提供相邻较低折射率材料层与多层表面相邻来平坦化与液晶接触的盖窗的表面。 相位掩模也可以通过图案化离子沉积在透射覆盖窗口上提供，将图案化光曝光到光聚合物材料上，或以某种其它合适的方式。 将像素电极排列成多个电平中的一个而不是处于精确的平面关系，也可以有效地产生相位掩模。

    DC-balanced and non-DC-balanced drive schemes for liquid crystal devices
    9.
    发明授权
    DC-balanced and non-DC-balanced drive schemes for liquid crystal devices 失效
    用于液晶装置的直流平衡和非直流平衡驱动方案

    公开(公告)号：US06507330B1

    公开(公告)日：2003-01-14

    申请号：US09809741

    申请日：2001-03-14

    申请人： Mark A. Handschy ,  Jiuzhi Xue ,  Lianhua Ji

    发明人： Mark A. Handschy ,  Jiuzhi Xue ,  Lianhua Ji

    IPC分类号： G09G336

    CPC分类号： G09G3/3651 ,  G09G3/36 ,  G09G3/3614 ,  G09G3/3655 ,  G09G2310/0251 ,  G09G2310/06 ,  G09G2310/063 ,  G09G2320/02 ,  G09G2320/0204 ,  G09G2320/0257

    摘要： A method of operating a liquid crystal cell includes DC-balancing by displaying an inverse image with electric fields of increased magnitude relative to the image producing electric fields. While the inverse image is displayed the image is prevented from being visible by either turning off the light source or re-directing or blocking the light from reaching the viewing area. The image producing electric fields and the inverse image producing electric fields are such that the cumulative time integral of the electric fields that are present in one direction across the liquid crystal material is substantially equal to the cumulative time integral of the electric fields that are present in the opposite direction during the given period of time during the operation of liquid crystal cell. The time duration of the inverse image portion is shorter than the time duration of the image portion by an amount proportional to the increased magnitude of the additional electric fields. Because of the shorter time period when no image is visible, the system brightness is increased.

    摘要翻译： 操作液晶单元的方法包括通过相对于产生图像的电场显示具有增大幅度的电场的逆图像的DC平衡。 当显示逆图像时，通过关闭光源或重新引导或阻挡光线到达观看区域，防止图像可见。 图像产生电场和逆图像产生电场使得在液晶材料上沿一个方向存在的电场的累积时间积分基本上等于存在于电场中的电场的累积时间积分 在液晶单元操作期间的给定时间段内的相反方向。 逆图像部分的持续时间比图像部分的持续时间短，与附加电场的幅度增加成比例的量。 由于无图像可见时间较短，系统亮度增加。

    Optics arrangements including light source arrangements for an active matrix liquid crystal image generator
    10.
    发明授权
    Optics arrangements including light source arrangements for an active matrix liquid crystal image generator 失效
    光学布置包括有源矩阵液晶图像发生器的光源装置

    公开(公告)号：US06359723B1

    公开(公告)日：2002-03-19

    申请号：US09735109

    申请日：2000-12-13

    申请人： Mark A. Handschy ,  Michael R. Meadows ,  Holden Chase

    发明人： Mark A. Handschy ,  Michael R. Meadows ,  Holden Chase

    IPC分类号： G02B2600

    CPC分类号： G02F1/1336 ,  G02B6/0033 ,  G02B6/0056 ,  G02B27/1033 ,  G02B27/1053 ,  G02B27/1086 ,  G02B27/123 ,  G02B27/145 ,  G02B27/283 ,  G02F1/133526 ,  G02F1/133606 ,  G02F1/133609 ,  G02F1/13362 ,  G02F1/136277 ,  G02F2001/133616 ,  G02F2001/133622 ,  Y10S362/80

    摘要： A system for producing modulated light is disclosed. The system comprises a spatial light modulator including a light modulating medium switchable between different states so as to act on light in ways which form overall patterns of modulated light. The system also includes an arrangement for switching the modulating medium between the different states in a controlled way and an illumination arrangement for producing a source of light. The system further includes an optics arrangement for directing light from the source of light into the spatial light modulator and for directing light from the spatial light modulator through a predetermined source imaging area. The optics arrangement cooperates with the illumination arrangement and the spatial light modulator so as to produce a real image of the source of light within the source imaging area such that an individual is able to view a virtual image of the overall patterns of modulated light from the source imaging area. A variety of novel optics arrangements are disclosed including specific combinations of different light sources, diffusing plates, polarizers, beam splitters, analyzers, lenses, mirrors, and holographic optical elements which allow the overall optical arrangement to be miniaturized to the same degree and in coordination with the spatial light modulator. The different light sources include using a plurality of light sources, such as LEDs, to form an array of light sources, each of the light sources providing light to a corresponding portion of the spatial light modulator.

    摘要翻译： 公开了一种用于产生调制光的系统。 该系统包括空间光调制器，其包括可在不同状态之间切换的光调制介质，以便以形成调制光的整体图案的方式作用于光。 该系统还包括用于以受控方式在不同状态之间切换调制介质的装置和用于产生光源的照明装置。 该系统还包括用于将来自光源的光引导到空间光调制器中并用于引导来自空间光调制器的光通过预定源成像区域的光学装置。 光学装置与照明装置和空间光调制器配合，以产生源成像区域内的光源的真实图像，使得个体能够观察来自该成像区域的调制光的整体图案的虚像 源成像区域。 公开了各种新颖的光学装置，其包括不同光源，扩散板，偏振器，分束器，分析器，透镜，反射镜和全息光学元件的特定组合，其允许整体光学装置以相同的程度和协调地小型化 与空间光调制器。 不同的光源包括使用诸如LED的多个光源来形成光源阵列，每个光源向空间光调制器的相应部分提供光。