Method and apparatus for compensating crosstalk in liquid crystal
displays
    1.
    发明授权
    Method and apparatus for compensating crosstalk in liquid crystal displays 失效
    用于补偿液晶显示器串扰的方法和装置

    公开(公告)号:US5670973A

    公开(公告)日:1997-09-23

    申请号:US743413

    申请日:1996-11-01

    Abstract: A method and apparatus for compensating crosstalk in liquid crystal displays is disclosed which involves applying boost voltages to the rows and columns of the display in proportion to the number of ON pixels in a row or column, the number of transition between "ON-and-OFF" or "OFF-and-ON" in each column, and the position of the pixel in a row. "Boost" voltages are applied to each row as it is being actively scanned to provide horizontal crosstalk compensation, while "boost" voltages are applied to each column during the vertical retrace interval of the display sequence to provide vertical crosstalk compensation. In a preferred embodiment, the vertical crosstalk compensation is determined during the vertical retrace interval over several flames.

    Abstract translation: 公开了一种用于补偿液晶显示器中的串扰的方法和装置,其涉及将显示器的行和列的升压电压与行或列中的ON像素的数量成正比,“ON- OFF“或”OFF-ON“,以及像素在一行中的位置。 “Boost”电压被施加到每一行,因为它被主动地扫描以提供水平串扰补偿,而在显示序列的垂直回扫间隔期间,“升压”电压被施加到每列,以提供垂直串扰补偿。 在优选实施例中,在几个火焰的垂直回扫间隔期间确定垂直串扰补偿。

    PCMCIA video card
    2.
    发明授权
    PCMCIA video card 失效
    PCMCIA视频卡

    公开(公告)号:US6023266A

    公开(公告)日:2000-02-08

    申请号:US764876

    申请日:1996-12-03

    CPC classification number: H04N21/4143 G09G5/395 G09G5/42 H04N19/00 H04N19/98

    Abstract: Motion video may be imported into a personal or portable computer through an I/O port having a limited data bandwidth, such as a PCMCIA interface. Motion video data is compressed by sub-sampling both luminance and chrominance difference data for different sized groups of pixels. The compression apparatus may be formed on a PCMCIA card which interfaces with a personal or portable computer. Motion video data, compressed by as much as 5:1 or 6:1, is transferred through the PCMCIA card to a host computer. The host computer may serialize the compressed data and store the data in serialized compressed format in a video memory of a video controller. The video controller is provided with decompression circuitry to decompress the motion video data into luminance and chrominance difference data. The luminance and chrominance difference data is converted into RGB data and displayed in a video display.

    Abstract translation: 运动视频可以通过具有有限数据带宽的I / O端口(例如PCMCIA接口)导入个人或便携式计算机。 运动视频数据通过对不同大小的像素组的亮度和色差差分数据进行二次采样而被压缩。 压缩装置可以形成在与个人或便携式计算机接口的PCMCIA卡上。 压缩多达5:1或6:1的运动视频数据通过PCMCIA卡传输到主机。 主机可以串行化压缩数据,并将数据以串行压缩格式存储在视频控制器的视频存储器中。 视频控制器设置有解压缩电路,以将运动视频数据解压缩为亮度和色差差数据。 亮度和色差差数据被转换成RGB数据并显示在视频显示器中。

    PCMCIA video card
    3.
    发明授权
    PCMCIA video card 失效
    PCMCIA视频卡

    公开(公告)号:US5642139A

    公开(公告)日:1997-06-24

    申请号:US235761

    申请日:1994-04-29

    CPC classification number: H04N21/4143 G09G5/395 G09G5/42 H04N19/00 H04N19/98

    Abstract: Motion video may be imported into a personal or portable computer through an I/O port having a limited data bandwidth, such as a PCMCIA interface. Motion video data is compressed by sub-sampling both luminance and chrominance difference data for different sized groups of pixels. The compression apparatus may be formed on a PCMCIA card which interfaces with a personal or portable computer. Motion video data, compressed by as much as 5:1 or 6:1, is transferred through the PCMCIA card to a host computer. The host computer may serialize the compressed data and store the data in serialized compressed format in a video memory of a video controller. The video controller is provided with decompression circuitry to decompress the motion video data into luminance and chrominance difference data. The luminance and chrominance difference data is converted into RGB data and displayed in a video display.

    Abstract translation: 运动视频可以通过具有有限数据带宽的I / O端口(例如PCMCIA接口)导入个人或便携式计算机。 运动视频数据通过对不同大小的像素组的亮度和色差差分数据进行二次采样而被压缩。 压缩装置可以形成在与个人或便携式计算机接口的PCMCIA卡上。 压缩多达5:1或6:1的运动视频数据通过PCMCIA卡传输到主机。 主机可以串行化压缩数据,并将数据以串行压缩格式存储在视频控制器的视频存储器中。 视频控制器设置有解压缩电路,以将运动视频数据解压缩为亮度和色差差数据。 亮度和色差差数据被转换成RGB数据并显示在视频显示器中。

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