中科微点-全球专利检索

  1. Login
  2. Sign Up

Search Results

72 records (took 0.02 seconds)

    Display device
    62.
    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.

    Magnetic channel cathode for a flat panel display
    63.
    发明专利
    Magnetic channel cathode for a flat panel display 未知

    公开(公告)号：GB2341269A

    公开(公告)日：2000-03-08

    申请号：GB9819234

    申请日：1998-09-03

    Applicant: IBM

    Inventor： BEETESON JOHN STUART

    IPC: H01J29/68 ,  H01J29/48 ,  H01J31/12

    Abstract: An electron source, e.g. for a flat panel display, comprises a permanent magnet 102,104 having channels extending between opposite poles. The internal surfaces of the channels are conductive. A cathode (204, fig 2) is located at a first pole of the magnet, at one end of the channels. Each channel within the magnet has a plurality of perforations 106 located on a surface of the permanent magnet. A potential applied between the cathode and the conductive internal surfaces of the channels causes electrons to be received into the channels Each perforation 106 gives rise to a null field region where electrons collect. An electron beam for guidance towards a target can be extracted from the null field region 602 by applying an electric field over the perforation. A variety of kinds of cathode are described, including line filament cathodes and micromachined cathodes.

    Display system with image scanning apparatus
    65.
    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.

    67.
    发明专利
    未知

    公开(公告)号：DE69025575D1

    公开(公告)日：1996-04-04

    申请号：DE69025575

    申请日：1990-12-14

    Applicant: IBM

    Inventor： LEWIS GRIFFITH JOHN ,  SHEPHERD EDWARD TREVOR ,  BEETESON JOHN STUART ,  CLITHEROE ADRIAN MARK

    IPC: G06F3/033 ,  G06F3/041 ,  G06K11/06 ,  G06F1/16 ,  G06K11/16

    Abstract: A touch sensitive display comprises a display screen (40). Mounting means (41) mounts a plate (20) of a rigid transparent material, on the display screen (40). Touch sensing means (21,22,23,24) cooperates with the mounting means to producing a plurality of electrical signals (25,26,27,28) in response to and indicative of a force corresponding to tactile stimulus applied to the plate (20). The mounting means (41) comprises a film (41) composed of a transparent, elastic, adhesive compound, having a similar refractive index to that of the display screen (40). The compound is applied to one surface of the plate (20) for bonding that surface to the display screen (40).

    TOUCH SENSITIVE DISPLAY
    70.
    发明专利
    TOUCH SENSITIVE DISPLAY 未知

    公开(公告)号：GB2239376A

    公开(公告)日：1991-06-26

    申请号：GB8928557

    申请日：1989-12-18

    Applicant: IBM

    Inventor： CLITHEROE ADRIAN MARK ,  BEETESON JOHN STUART ,  SHEPHERD EDWARD TREVOR ,  LEWIS GRIFFITH JOHN STEADMAN

    IPC: G06F3/033 ,  G06F3/041 ,  G06K11/06

    Abstract: A touch sensitive display comprises a display screen (40). Mounting means (41) mounts a plate (20) of a rigid transparent material, on the display screen (40). Touch sensing means (21,22,23,24) cooperates with the mounting means to producing a plurality of electrical signals (25,26,27,28) in response to and indicative of a force corresponding to tactile stimulus applied to the plate (20). The mounting means (41) comprises a film (41) composed of a transparent, elastic, adhesive compound, having a similar refractive index to that of the display screen (40). The compound is applied to one surface of the plate (20) for bonding that surface to the display screen (40).

Patent Agency Ranking