GB932212A - Improvements in electron discharge display device - Google Patents

Improvements in electron discharge display device

Info

Publication number
GB932212A
GB932212A GB613760A GB613760A GB932212A GB 932212 A GB932212 A GB 932212A GB 613760 A GB613760 A GB 613760A GB 613760 A GB613760 A GB 613760A GB 932212 A GB932212 A GB 932212A
Authority
GB
United Kingdom
Prior art keywords
electrodes
arrays
resistors
feb
envelope
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired
Application number
GB613760A
Inventor
Peter Gordon Lea
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Bush and Rank Cintel Ltd
Original Assignee
Bush and Rank Cintel Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Bush and Rank Cintel Ltd filed Critical Bush and Rank Cintel Ltd
Priority to GB613760A priority Critical patent/GB932212A/en
Publication of GB932212A publication Critical patent/GB932212A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
    • H01J29/00—Details of cathode-ray tubes or of electron-beam tubes of the types covered by group H01J31/00
    • H01J29/46—Arrangements of electrodes and associated parts for generating or controlling the ray or beam, e.g. electron-optical arrangement
    • H01J29/467—Control electrodes for flat display tubes, e.g. of the type covered by group H01J31/123
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
    • H01J31/00—Cathode ray tubes; Electron beam tubes
    • H01J31/08—Cathode ray tubes; Electron beam tubes having a screen on or from which an image or pattern is formed, picked up, converted, or stored
    • H01J31/10—Image or pattern display tubes, i.e. having electrical input and optical output; Flying-spot tubes for scanning purposes
    • H01J31/12—Image or pattern display tubes, i.e. having electrical input and optical output; Flying-spot tubes for scanning purposes with luminescent screen
    • H01J31/123—Flat display tubes
    • H01J31/125—Flat display tubes provided with control means permitting the electron beam to reach selected parts of the screen, e.g. digital selection
    • H01J31/127—Flat display tubes provided with control means permitting the electron beam to reach selected parts of the screen, e.g. digital selection using large area or array sources, i.e. essentially a source for each pixel group
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
    • H01J2201/00—Electrodes common to discharge tubes
    • H01J2201/34—Photoemissive electrodes
    • H01J2201/342—Cathodes

Landscapes

  • Cathode-Ray Tubes And Fluorescent Screens For Display (AREA)

Abstract

932,212. Cathode-ray tubes. BUSH & RANK CINTEL Ltd. Feb. 22, 1961 [Feb. 22, 1960], No. 6137/60. Class 39 (1). An electronic display tube includes a " cold " emissive layer 5, e.g. of MgO 2 , on an electrode support 1, one or more mesh electrodes 6, 9 for producing a uniform emission from the layer 5, and two arrays of mutually perpendicular control electrodes 12, 18 which are selectively energized to allow electrons to pass in the vicinity of intersection points to excite the luminescent screen 24. The electrostatic field in the vicinity of an intersection point also serves to focus the electrons. The arrays 12, 18 are connected by resistors 13, 19 to common leads 14, 20 and are normally at cathode potentials. Selected electrodes, or adjacent pairs of electrodes, of the arrays are raised to a positive potential by selector means 16, 22 which may comprise semi-conductor switches or electron beam switches incorporated inside the envelope. Resistors 13, 19 also may be inside the envelope.
GB613760A 1960-02-22 1960-02-22 Improvements in electron discharge display device Expired GB932212A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB613760A GB932212A (en) 1960-02-22 1960-02-22 Improvements in electron discharge display device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB613760A GB932212A (en) 1960-02-22 1960-02-22 Improvements in electron discharge display device

Publications (1)

Publication Number Publication Date
GB932212A true GB932212A (en) 1963-07-24

Family

ID=9809107

Family Applications (1)

Application Number Title Priority Date Filing Date
GB613760A Expired GB932212A (en) 1960-02-22 1960-02-22 Improvements in electron discharge display device

Country Status (1)

Country Link
GB (1) GB932212A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3421042A (en) * 1967-04-27 1969-01-07 Northrop Corp Electron beam scanner utilizing labyrinth structure
EP0598764A1 (en) * 1991-07-15 1994-06-01 Panocorp Display Systems Improved electronic fluorescent display
EP0920050A2 (en) * 1997-12-01 1999-06-02 Matsushita Electronics Corporation Image display apparatus

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3421042A (en) * 1967-04-27 1969-01-07 Northrop Corp Electron beam scanner utilizing labyrinth structure
EP0598764A1 (en) * 1991-07-15 1994-06-01 Panocorp Display Systems Improved electronic fluorescent display
EP0598764A4 (en) * 1991-07-15 1994-11-17 Panocorp Display Systems Improved electronic fluorescent display.
EP0920050A2 (en) * 1997-12-01 1999-06-02 Matsushita Electronics Corporation Image display apparatus
EP0920050A3 (en) * 1997-12-01 2001-04-11 Matsushita Electronics Corporation Image display apparatus
US6630782B1 (en) 1997-12-01 2003-10-07 Matsushita Electric Industrial Co., Ltd. Image display apparatus having electrodes comprised of a frame and wires

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