Flat-panel display containing electron-emissive regions of non-uniform spacing or/and multi-part lateral configuration
    11.
    发明授权
    Flat-panel display containing electron-emissive regions of non-uniform spacing or/and multi-part lateral configuration 失效
    平板显示器包含不均匀间隔或/和多部分横向配置的电子发射区域

    公开(公告)号:US06879097B2

    公开(公告)日:2005-04-12

    申请号:US09967728

    申请日:2001-09-28

    Inventor: James C. Dunphy

    CPC classification number: H01J29/467 H01J29/085 H01J31/127

    Abstract: A flat-panel cathode-ray tube display contains electron-emissive regions (54) spaced non-uniformly apart from one another in a line of the electron-emissive regions so as to better utilize the space where the electron-emissive regions are located. Alternatively or additionally, electron focusing can be appropriately made more concentrated by implementing each electron-emissive region as two or more portions 54A-54F) situated suitably with respect to openings (86A-86F) in an electron-focusing system (76).

    Abstract translation: 平板阴极射线管显示器包含在电子发射区域的线中彼此不均匀分开的电子发射区域(54),以便更好地利用电子发射区域所在的空间。 或者或另外,通过在电子聚焦系统(76)中相对于开口(86A-86F)适当定位的每个电子发射区域被实现为两个或更多个部分54A-54F),可以适当地使电子聚焦更加集中。

    Method and apparatus for scanning electronic barcodes
    12.
    发明授权
    Method and apparatus for scanning electronic barcodes 有权
    扫描电子条形码的方法和装置

    公开(公告)号:US06749120B2

    公开(公告)日:2004-06-15

    申请号:US09736731

    申请日:2000-12-11

    CPC classification number: G06K7/10881 G06K7/10702 G06K7/10732 G06K7/1095

    Abstract: A scanner is provided that can read two-dimensional barcodes from reflective or emissive electronic displays. Illumination, exposure, and contrast can be automatically adjusted according to the type of display and variations in brightness or reflectivity. The scanner includes an imaging camera with high spectral response for reading from color displays. The scanner can also adapt to read barcodes from displays with non-square pixels.

    Abstract translation: 提供了可以从反射或发射电子显示器读取二维条形码的扫描仪。 照明,曝光和对比度可以根据显示类型和亮度或反射率的变化自动调整。 该扫描器包括具有高光谱响应的成像相机,用于从彩色显示器读取。 扫描仪还可以适应从具有非正方形像素的显示器读取条形码。

    SYSTEM AND METHOD FOR REDUCING VISIBLE SPECKLE IN A PROJECTION VISUAL DISPLAY SYSTEM
    14.
    发明申请
    SYSTEM AND METHOD FOR REDUCING VISIBLE SPECKLE IN A PROJECTION VISUAL DISPLAY SYSTEM 有权
    在投影视觉显示系统中减少可见光斑的系统和方法

    公开(公告)号:US20120019918A1

    公开(公告)日:2012-01-26

    申请号:US13251904

    申请日:2011-10-03

    CPC classification number: G03B21/56

    Abstract: The disclosure provides an apparatus for reducing speckle in a projection visual display (PVD) system, a method of reducing visible speckle in a PVD system and a PVD system incorporating the method or apparatus. In one embodiment, the apparatus includes a diffuser interposable in an optical path of a PVD system and a diffuser actuator having a single drive axis configured to cause the diffuser to travel in a Lissajous curve at least partially transverse to the optical path.

    Abstract translation: 本公开提供了一种用于减少投影视觉显示(PVD)系统中的斑点的装置,减少PVD系统中的可见散斑的方法和包含该方法或装置的PVD系统。 在一个实施例中,该装置包括可在PVD系统的光路中插入的漫射器和具有单个驱动轴的扩散器致动器,该单个驱动轴构造成使扩散器至少部分地横向于光路穿过利萨如曲线。

    SYSTEM AND METHOD FOR REDUCING VISIBLE SPECKLE IN A PROJECTION VISUAL DISPLAY SYSTEM
    16.
    发明申请
    SYSTEM AND METHOD FOR REDUCING VISIBLE SPECKLE IN A PROJECTION VISUAL DISPLAY SYSTEM 有权
    在投影视觉显示系统中减少可见光斑的系统和方法

    公开(公告)号:US20090009871A1

    公开(公告)日:2009-01-08

    申请号:US11948881

    申请日:2007-11-30

    CPC classification number: G03B21/56

    Abstract: The invention provides an apparatus for reducing speckle in a projection visual display (PVD) system, a method of reducing visible speckle in a PVD system and a PVD system incorporating the method or apparatus. In one embodiment, the apparatus includes a diffuser interposable in an optical path of a PVD system and a diffuser actuator having a single drive axis configured to cause the diffuser to travel in a lissajous curve at least partially transverse to the optical path.

    Abstract translation: 本发明提供一种用于减少投影视觉显示(PVD)系统中的斑点的装置,减少PVD系统中的可见斑点的方法以及包含该方法或装置的PVD系统。 在一个实施例中,该装置包括在PVD系统的光路中可插入的漫射器和具有单个驱动轴的扩散器致动器,该单个驱动轴构造成使漫射器至少部分地横向于光路穿过假丝带曲线。

    Methods and systems for compensating row-to-row brightness variations of a field emission display
    17.
    发明授权
    Methods and systems for compensating row-to-row brightness variations of a field emission display 失效
    用于补偿场发射显示器的行到行亮度变化的方法和系统

    公开(公告)号:US07403175B1

    公开(公告)日:2008-07-22

    申请号:US10969494

    申请日:2004-10-19

    CPC classification number: G09G3/22 G09G2320/0233 G09G2320/0285

    Abstract: Methods for compensating for brightness variations in a field emission device. In one embodiment, a method and system are described for measuring the relative brightness of rows of a field emission display (FED) device, storing information representing the measured brightness into a correction table and using the correction table to provide uniform row brightness in the display by adjusting row voltages and/or row on-time periods. A special measurement process is described for providing accurate current measurements on the rows. This embodiment compensates for brightness variations of the rows, e.g., for rows near the spacer walls. In another embodiment, a periodic signal, e.g., a high frequency noise signal, is added to the row on-time pulse in order to camouflage brightness variations in the rows near the spacer walls. In another embodiment, the area under the row on-time pulse is adjusted to provide row-by-row brightness compensation based on correction values stored in a memory resident correction table. In another embodiment, the brightness of each row is measured and compiled into a data profile for the FED. The data profile is used to control cathode burn-in processes so that brightness variations are corrected by physically altering the characteristics of the emitters of the rows.

    Abstract translation: 补偿场致发射装置的亮度变化的方法。 在一个实施例中,描述了用于测量场发射显示(FED)装置的行的相对亮度的方法和系统,将表示测量的亮度的信息存储到校正表中,并且使用校正表在显示器中提供均匀的行亮度 通过调整行电压和/或行导通时间周期。 描述了一种特殊的测量过程,用于在行上提供精确的电流测量。 该实施例补偿行的亮度变化,例如用于靠近隔离壁的行。 在另一个实施例中,周期性信号,例如高频噪声信号,被添加到行准时脉冲,以伪装靠近隔离壁的行中的亮度变化。 在另一实施例中,根据存储在存储器驻留校正表中的校正值,调整行导通时间脉冲之下的面积以提供逐行亮度补偿。 在另一个实施例中,测量每行的亮度并将其编译成用于FED的数据简档。 数据轮廓用于控制阴极老化过程,从而通过物理地改变行的发射器的特性来校正亮度变化。

    Methods and systems for compensating row-to-row brightness variations of a field emission display
    18.
    发明授权
    Methods and systems for compensating row-to-row brightness variations of a field emission display 失效
    用于补偿场发射显示器的行到行亮度变化的方法和系统

    公开(公告)号:US06822628B2

    公开(公告)日:2004-11-23

    申请号:US09895985

    申请日:2001-06-28

    CPC classification number: G09G3/22 G09G2320/0233 G09G2320/0285

    Abstract: Methods for compensating for brightness variations in a field emission device. In one embodiment, a method and system are described for measuring the relative brightness of rows of a field emission display (FED) device, storing information representing the measured brightness into a correction table and using the correction table to provide uniform row brightness in the display by adjusting row voltages and/or row on-time periods. A special measurement process is described for providing accurate current measurements on the rows. This embodiment compensates for brightness variations of the rows, e.g., for rows near the spacer walls. In another embodiment, a periodic signal, e.g., a high frequency noise signal, is added to the row on-time pulse in order to camouflage brightness variations in the rows near the spacer walls. In another embodiment, the area under the row on-time pulse is adjusted to provide row-by-row brightness compensation based on correction values stored in a memory resident correction table. In another embodiment, the brightness of each row is measured and compiled into a data profile for the FED. The data profile is used to control cathode burn-in processes so that brightness variations are corrected by physically altering the characteristics of the emitters of the rows.

    Abstract translation: 补偿场致发射装置的亮度变化的方法。 在一个实施例中,描述了用于测量场发射显示(FED)装置的行的相对亮度的方法和系统,将表示测量的亮度的信息存储到校正表中,并且使用校正表在显示器中提供均匀的行亮度 通过调整行电压和/或行导通时间周期。 描述了一种特殊的测量过程,用于在行上提供精确的电流测量。 该实施例补偿行的亮度变化,例如用于靠近隔离壁的行。 在另一个实施例中,周期性信号,例如高频噪声信号,被添加到行准时脉冲,以伪装靠近隔离壁的行中的亮度变化。 在另一实施例中,根据存储在存储器驻留校正表中的校正值,调整行导通时间脉冲之下的面积以提供逐行亮度补偿。 在另一个实施例中,测量每行的亮度并将其编译成用于FED的数据简档。 数据轮廓用于控制阴极老化过程,从而通过物理地改变行的发射器的特性来校正亮度变化。

    System and method for reducing visible speckle in a projection visual display system
    19.
    发明授权
    System and method for reducing visible speckle in a projection visual display system 有权
    用于减少投影视觉显示系统中可见斑点的系统和方法

    公开(公告)号:US08444271B2

    公开(公告)日:2013-05-21

    申请号:US13251904

    申请日:2011-10-03

    CPC classification number: G03B21/56

    Abstract: The disclosure provides an apparatus for reducing speckle in a projection visual display (PVD) system, a method of reducing visible speckle in a PVD system and a PVD system incorporating the method or apparatus. In one embodiment, the apparatus includes a diffuser interposable in an optical path of a PVD system and a diffuser actuator having a single drive axis configured to cause the diffuser to travel in a Lissajous curve at least partially transverse to the optical path.

    Abstract translation: 本公开提供了一种用于减少投影视觉显示(PVD)系统中的斑点的装置,减少PVD系统中的可见散斑的方法和包含该方法或装置的PVD系统。 在一个实施例中,该装置包括可在PVD系统的光路中插入的漫射器和具有单个驱动轴的扩散器致动器,该单个驱动轴构造成使扩散器至少部分地横向于光路穿过利萨如曲线。

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