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公开(公告)号：US5877597A
公开(公告)日：1999-03-02
申请号：US778320
申请日：1997-01-02
Applicant: John Beeteson , Andrew Knox
Inventor： John Beeteson , Andrew Knox
CPC classification number: G09G1/20 , G09G3/22 , H01J29/68 , H01J29/862 , H01J31/15 , H04N13/0404 , H04N13/0422 , H01J2329/00 , H04N13/0497
Abstract: A display device comprises a cathode and a permanent magnet. A two dimensional array of rows and columns of channels extends between opposite poles of the magnet for receiving electrons from the cathode. A screen has a plurality of phosphor pixels each corresponding to a different channel and each comprising a plurality of sub-pixels facing the side of the magnet remote from the cathode. Grid electrode means is disposed between the cathode means and the magnet. A plurality of pairs of anodes are disposed between the magnet and the screen and extending parallel to the columns of channels. Each pair corresponds to a different column of channels and each pair has first and second anodes extending along opposite sides of the corresponding column of channels. Address means supplies control signals to the grid electrode means to selectively control flow of electrons from the cathode through each channel to the corresponding pixel. An anode drive circuit supplies anode drive signals to the first and second anodes respectively. The anode drive circuit comprises bias means for generating an acceleration component of each anode drive signal for accelerating electrons through the channels, deflection means for generating a deflection component of each anode drive signal for deflecting electrons emerging from each channel towards different sub-pixels of the corresponding pixel, and correction means for varying the deflection component to align the deflected electron beams with the corresponding sub-pixels.
Abstract translation: 显示装置包括阴极和永磁体。 通道的行和列的二维阵列在磁体的相对极之间延伸，用于从阴极接收电子。 屏幕具有多个磷光体像素，每个磷光体像素对应于不同的通道，并且每个磷光体像素包括面向远离阴极的磁体侧的多个子像素。 网格电极装置设置在阴极装置和磁体之间。 多个阳极设置在磁体和屏幕之间并且平行于通道列延伸。 每对对应于不同的通道列，并且每对具有沿对应的通道列的相对侧延伸的第一和第二阳极。 地址意味着向栅格电极装置提供控制信号，以选择性地控制电子从阴极通过每个通道流向对应的像素。 阳极驱动电路分别向第一和第二阳极提供阳极驱动信号。 阳极驱动电路包括用于产生每个阳极驱动信号的加速度分量以用于加速通过通道的电子的偏压装置，用于产生每个阳极驱动信号的偏转分量的偏转装置，用于将从每个通道出射的电子偏转到不同的子像素 以及用于改变偏转分量以使偏转的电子束与相应的子像素对准的校正装置。
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公开(公告)号：US5864370A
公开(公告)日：1999-01-26
申请号：US631276
申请日：1996-04-12
Applicant: Andrew Knox , John Beeteson
Inventor： Andrew Knox , John Beeteson
Abstract: Display apparatus comprises a display screen. Drive means generates an image on the display screen in response to a video signal input from an external video source. The drive means comprises a memory for storing a gamma value and gamma correction means for modifying the input video signal as a function of a gamma value. Gamma variation means permits adjustment or the gamma value stored in the memory in response to a control signal input.
Abstract translation: 显示装置包括显示屏。 驱动装置响应于从外部视频源输入的视频信号，在显示屏上产生图像。 驱动装置包括用于存储伽马值的存储器和用于根据伽马值修改输入视频信号的伽马校正装置。 伽马变化装置允许响应于控制信号输入而调节或存储在存储器中的伽马值。
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公开(公告)号：US5861712A
公开(公告)日：1999-01-19
申请号：US675552
申请日：1996-07-03
Applicant: John Beetson , Andrew Knox
Inventor： John Beetson , Andrew Knox
CPC classification number: H01J29/68 , B41J2/4476 , G09G1/20 , H01J29/46 , H01J3/24 , H01J2329/00
Abstract: An electron source having a cathode and a permanent magnet perforated by a plurality of channels extending between opposite poles thereof. The magnet generates, in each channel, a magnetic field which forms electrons received from the cathode into an electron beam for guidance towards a target. An electrode grid is disposed between the cathode and the magnet for controlling flow of electrons from the cathode into each channel. A magnetic field null region of each magnetic field is positioned at a location remote from the electrode grid. Because the null region is positioned remotely from the grid electrodes, flow of electrons can be improved without increasing electrode drive voltage.
Abstract translation: 电子源具有阴极和永久磁铁，该多个通道在其相对极之间延伸。 在每个通道中，磁体产生形成从阴极接收的电子到电子束的磁场，用于向目标引导。 电极栅格设置在阴极和磁体之间，用于控制电子从阴极到每个通道的流动。 每个磁场的磁场零区域位于远离电极栅格的位置。 因为零区域远离栅格电极，所以可以在不增加电极驱动电压的情况下改善电子流。
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公开(公告)号：US5432411A
公开(公告)日：1995-07-11
申请号：US220990
申请日：1994-03-31
Applicant: John Beeteson , Andrew Knox
Inventor： John Beeteson , Andrew Knox
CPC classification number: H01J29/003 , H01J2229/0015
Abstract: The present electrical apparatus comprises an antenna for directing towards an electric field source to detect the electric field (E) to be reduced. The antenna is connected to amplifier for generating an output signal in response to an input signal from the antenna. The output signal is in anti-phase to the input signal. A radiator is connected to the amplifier for radiating a cancelling electric field (E') in anti-phase to the electric field (E) from the source in response to the output signal from the amplifier to at least partially cancel reduce the electric field from the source. The antenna, when directed towards the source, is positioned relative to the radiator and the source to detect both the cancelling electric field (E') from the radiator and the electric field (E) from the source. The input signal produced by the antenna is thus derived from the sum of the electric field (E) to be reduced from the source and the cancelling electric field (E') from the radiator.
Abstract translation: 本电气设备包括用于引导电场源的天线，以检测要减小的电场（E）。 天线连接到放大器，用于响应于来自天线的输入信号而产生输出信号。 输出信号与输入信号反相。 放大器连接到放大器，用于响应于来自放大器的输出信号而从源极辐射与电场（E）反相的抵消电场（E'），以至少部分地抵消减小电场 来源。 天线指向源极时相对于辐射器和源定位，以检测来自散热器的消除电场（E'）和来自源的电场（E）。 因此，由天线产生的输入信号是从源极减小的电场（E）和来自散热器的消除电场（E'）之和得出的。
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