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    Display device
    14.
    发明专利
    Display device 未知

    公开(公告)号：GB2314201B

    公开(公告)日：2001-01-31

    申请号：GB9612345

    申请日：1996-06-13

    Applicant: IBM

    Inventor： BEETESON JOHN STUART ,  KNOX ANDREW RAMSAY

    IPC: G09G1/20 ,  G09G3/22 ,  H01J29/68 ,  H01J29/86 ,  H01J31/15 ,  H04N13/00 ,  H01J31/12 ,  H01J29/62 ,  H01J29/70 ,  H04N3/23

    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.

    Display system with image scanning apparatus
    16.
    发明专利
    Display system with image scanning apparatus 未知

    公开(公告)号：GB2307817B

    公开(公告)日：1999-10-20

    申请号：GB9524631

    申请日：1995-12-01

    Applicant: IBM

    Inventor： BEETESON JOHN STUART ,  KNOX ANDREW RAMSAY

    IPC: H04N1/00 ,  H04N1/028 ,  H04N1/10

    Abstract: A display system comprises a display screen and drive means for scanning a picture onto the display screen in response to a video signal. Image scanning apparatus in the display system comprises photo-detection means optically coupled to the display screen for generating an image signal on detection of any light from the scanned picture reflected back into the display screen by an external article and subsequently internally reflected within the display screen. Storage means stores the image signal detected by the photo-detection means.

    Auto-stereoscopic display device and system
    18.
    发明专利
    Auto-stereoscopic display device and system 未知

    公开(公告)号：GB2314203A

    公开(公告)日：1997-12-17

    申请号：GB9612578

    申请日：1996-06-15

    Applicant: IBM

    Inventor： BEETESON JOHN ,  KNOX ANDREW RAMSAY

    IPC: H01J29/68 ,  H01J29/74 ,  H01J29/89 ,  H04N13/00 ,  H04N13/04 ,  H01J31/12

    Abstract: An auto-stereoscopic display device comprises a plane viewing screen 90 a plane cathode 20, and a plane permanent magnet 60. A two dimensional array of rows and columns of channels 70 extends between opposite poles of the magnet for receiving electrons from the cathode. A phosphor layer 95 is disposed between the screen and the magnet and having a plurality of pixels each corresponding to a different channel. Grid electrode means 40 is disposed between the cathode and the magnet for selectively controlling flow of electrons from the cathode through each channel to the corresponding pixel in response to input video data. Deflection anode means 50 is disposed on the side of the magnet remote from the cathode for sequentially deflecting, orthogonally to the columns, each electron beam to different parts of the corresponding pixel in response to an input video clock signal. A lenticular lens array 260 is disposed between the phosphor layer and the screen and having a plurality of cylindrical lenses each corresponding to a different column of pixels. Such a display device may be used in a 16 view stereoscopic system, and may incorporate an interpolater if the device is supplied with fewer views from a video source.

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