公开(公告)号：JPH10247463A

公开(公告)日：1998-09-14

申请号：JP3258698

申请日：1998-02-16

Applicant: IBM

Inventor： BEETESON JOHN ,  KNOX ANDREW RAMSAY ,  PIETRZAK CHRISTOPHER CARLO

IPC: H01J31/15 ,  G09G1/20 ,  H01J3/02 ,  H01J29/04 ,  H01J31/12

Abstract: PROBLEM TO BE SOLVED: To provide a display electron supply source having self-stability. SOLUTION: The position of a virtual remote cathode is related to a spatial charge cloud conserved by the shape of a fixed insulating plate 902. This plate 902 can be shaped to accurate size, and thereby the distance from a cathode 510 to a control grid 502 can be accurately controlled to exert no influence of the mechanical, electrical and physical change of a structure. The fixed insulating plate 902 is arranged on the face opposite from the cathode 510 of the control grid 502.

公开(公告)号：JP2000299074A

公开(公告)日：2000-10-24

申请号：JP33396999

申请日：1999-11-25

Applicant: IBM

Inventor： BEETESON JOHN

IPC: H01J31/12 ,  G09G3/22 ,  H01J29/46 ,  H01J29/64 ,  H01J29/68 ,  H01J29/74 ,  H01J31/15 ,  H04N5/68 ,  H04N9/22 ,  H04N9/24

Abstract: PROBLEM TO BE SOLVED: To obtain a flat-panel magnetic matrix display device using a magnetic matrix electron generation source. SOLUTION: This display device includes an electron source, while the electron source has a cathode 20, a permanent magnet 60 formed with a plurality of channels 70 extending between opposite poles of the magnet 60, a grid electrode 40 selectively addressing the channels 70 and controlling an electron stream from the cathode 20 through the addressed channels 70, and an anode 50 disposed on the opposite surface of the permanent magnet 60 to the cathode 20. The display device also includes a screen having a phosphor coating 80 on a surface facing to the permanent magnet 60, and a means applying a control signal to the grid electrode 40 and the anode 50 to selectively control the electron stream flowing from the cathode 20 to the phosphor coating 80 through the channels 70.

公开(公告)号：JPH10321165A

公开(公告)日：1998-12-04

申请号：JP31488897

申请日：1997-11-17

Applicant: IBM

Inventor： KNOX ANDREW RAMSAY ,  BEETESON JOHN

IPC: H01J31/12 ,  G09G1/20 ,  G09G3/22 ,  H01J29/68

Abstract: PROBLEM TO BE SOLVED: To correct rotational positional dislocation between an image screen and a magnet by arranging a grid electrode to control a flow of electrons to respective channels from a cathode, a deflecting means to successively address electron beams to groups of corresponding respective picture elements and a rotary positioning means to position the electron beams on the corresponding picture elements of a phosphor covering. SOLUTION: Electrons are emitted from a cathode 20, and are attracted toward a control grid 40. The electrons enter address designated picture element wells 70 by passing through the control grid 40. A strong magnetic field exists in the respective picture element wells 70. A pair of anodes 50 existing in an upper part of the picture element wells 70 accelerate the electrons passing through the picture element wells 70, and bring about a selective lateral directional swing of an electron beam 30. Next, the electron beam 30 is accelerated toward the anodes formed on a glass plate 90, and reaches a phosphor 80 existing in a lower part by passing through the anodes, and becomes a high speed electron beam 30 having energy sufficient to send out light output.

公开(公告)号：JPH10247464A

公开(公告)日：1998-09-14

申请号：JP3153698

申请日：1998-02-13

Applicant: IBM

Inventor： BEETESON JOHN ,  KNOX ANDREW RAMSAY

IPC: H01J31/15 ,  H01J29/46 ,  H01J29/68 ,  H01J31/12 ,  H04N5/68

Abstract: PROBLEM TO BE SOLVED: To provide a display device which serves an excellent control function. SOLUTION: This display device includes a cathode means 20 for radiating electrons, and also includes a permanent magnet 60 having a two-dimensional arrangement of channels extending between opposed poles of the magnet 60. A screen 90 receives an electron beam from each channel. The screen 90 has a phosphor coating 80 facing toward the magnet 60 remote from a cathode, and each section of the phosphor coating 80 includes several sections capable of being illuminated, and at least one section can be illuminated by several electron beams. A grid electrode means 40 is arranged between the cathode means 20 and the magnet 60 to control the flow of electrons from the cathode means 20 to each channel. Each element of the grid electrode means 40 includes several elements corresponding to different phosphor sections capable of being illuminated. A first anode means 50 is arranged between the magnet 60 and the screen 90 to accelerate the electron beam toward the screen 90.

公开(公告)号：JPH10208677A

公开(公告)日：1998-08-07

申请号：JP333198

申请日：1998-01-09

Applicant: IBM

Inventor： BEETESON JOHN ,  KNOX ANDREW RAMSAY

IPC: H01J31/12 ,  H01J29/46 ,  H01J29/52 ,  H01J1/30

Abstract: PROBLEM TO BE SOLVED: To provide a display device including a field emission cathode means to emit electrons. SOLUTION: Plural electron beams are formed by a field emission cathode 20. A screen having a phosphor covering 150 opposing to the cathode 20 receives plural electron beams. The phosphor covering 150 includes plural picture elements corresponding to different electron beams of the above plural electron beams. Grid electron means 71 and 72 are provided between the cathode means and the screen, so as to control the flow of the electron from the cathode means. The field emission cathode 20 includes an extract grid having plural parts allowable to address separately relating to the above plural picture elements respectively. In order to emulate a conventional type CRT, a gamma transmission function is provided between an input data and a beam current. This can be accomplished by using a lookup table.

公开(公告)号：JPH0963517A

公开(公告)日：1997-03-07

申请号：JP16724196

申请日：1996-06-27

Applicant: IBM

Inventor： BEETESON JOHN ,  KNOX ANDREW

IPC: B41J2/395 ,  G09F9/30 ,  G09G1/20 ,  H01J3/24 ,  H01J29/46 ,  H01J29/68 ,  H01J31/12

Abstract: PROBLEM TO BE SOLVED: To provide a flat type display apparatus manufactured easily and having high electroluminescence efficiency by controlling deflection of electrons by a magnetic matrix provided with a two-dimensional matrix of electron paths corresponding to picture elements. SOLUTION: A cathode 20 to emit electrons and a glass plate 90 coated with stripes of three color-emitting high voltage phosphors are put on the opposite to each other in a vacuum container and a magnet 60 is placed between them. The magnet 60 is made of a ferrite and provided with a two-dimensional matrix of picture element vertical holes 70. On the upper face of the magnet 60, a pair of anodes 50 are placed in both sides and along each row of the picture element vertical holes 70. On the lower face of the magnet 60, two groups of control grids 40 respectively arranged in the direction of rows and in the direction of lines of the picture element vertical holes 70 are placed and the picture element vertical holes 70 are so arranged as to be at respective crossing points of both grids. Electrons go into the picture element vertical holes 70 in a matrix address appointed by the control grids 40, are converged by a magnetic field, are deflected by the pair of the anodes 50, and irradiate high voltage phosphors which emit desiring colors.

公开(公告)号：DE69506829D1

公开(公告)日：1999-02-04

申请号：DE69506829

申请日：1995-10-17

Applicant: IBM

Inventor： BEETESON JOHN ,  MARTIN FRANK JOHN

IPC: H01J29/89 ,  C09J5/06 ,  B29C65/00

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.

公开(公告)号：GB2304983A

公开(公告)日：1997-03-26

申请号：GB9524613

申请日：1995-12-01

Applicant: IBM

Inventor： BEETESON JOHN ,  KERIGAN SHAUN ,  KNOX ANDREW RAMSAY

IPC: H01J31/12 ,  B41J2/447 ,  G09G1/20 ,  G09G3/22 ,  H01J3/02 ,  H01J3/24 ,  H01J9/02 ,  H01J29/46 ,  H01J29/68 ,  H01J29/70

Abstract: An electron source having a cathode and a permanent magnet having perforated channels extending between opposite poles of the magnet. Each channel forms electrons received from the cathode into an electron beam for guidance towards a target. The electron source has applications in a wide range of technologies, including display technology and printer technology.

公开(公告)号：GB2284927A

公开(公告)日：1995-06-21

申请号：GB9425415

申请日：1994-12-16

Applicant: IBM

Inventor： BEETESON JOHN ,  LOWE ANTHONY C

IPC: B32B17/10 ,  G06F1/16 ,  H01J9/24 ,  H01J29/86 ,  G06F3/033

Abstract: A method of bonding faceplates (20) to VDU screens is provided in which an adhesive material is dispensed (80) onto a surface of either the faceplate or the VDU (40), the faceplate and the VDU are brought together (90) to force the adhesive material outwards to fill the gap between the surfaces, and the adhesive material layer (41) which is formed is then cured. In a first curing step (100), curing is carried out around the edges of the faceplate to form a seal around the edges. This first step may be carried out in a dedicated positioning tool. A later curing step (120) ensures that all of the adhesive material layer is eventually cured. Positioning (90) in the dedicated tool may use specific reference points on the faceplate and the VDU rather than relying on physical spacers, and may be carried out under servo control of a system for detecting the onset of undesirable gas entrapment conditions within the adhesive layer. The invention is particularly useful for automated or semi-automated bonding of touch-plates to screens to form touch-input displays, with the avoidance of spacers and with the selective, two-stage curing enabling minimising of time in the positioning tool.