GB1360356A - Information display discharge devices - Google Patents

Information display discharge devices

Info

Publication number
GB1360356A
GB1360356A GB2536072A GB2536072A GB1360356A GB 1360356 A GB1360356 A GB 1360356A GB 2536072 A GB2536072 A GB 2536072A GB 2536072 A GB2536072 A GB 2536072A GB 1360356 A GB1360356 A GB 1360356A
Authority
GB
United Kingdom
Prior art keywords
cathode
energized
anode
strips
cathodes
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
GB2536072A
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.)
International Business Machines Corp
Original Assignee
International Business Machines Corp
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 International Business Machines Corp filed Critical International Business Machines Corp
Publication of GB1360356A publication Critical patent/GB1360356A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
    • H01J17/00—Gas-filled discharge tubes with solid cathode
    • H01J17/38—Cold-cathode tubes
    • H01J17/48—Cold-cathode tubes with more than one cathode or anode, e.g. sequence-discharge tube, counting tube, dekatron
    • H01J17/49—Display panels, e.g. with crossed electrodes, e.g. making use of direct current
    • H01J17/498—Display panels, e.g. with crossed electrodes, e.g. making use of direct current with a gas discharge space and a post acceleration space for electrons

Landscapes

  • Gas-Filled Discharge Tubes (AREA)
  • Control Of Indicators Other Than Cathode Ray Tubes (AREA)

Abstract

1360356 Cathode-ray tubes INTERNATIONAL BUSINESS MACHINES CORP 31 May 1972 [29 June 1971] 25360/72 Heading H1D A display device comprises an envelope filled with ionizable gas and containing a plurality of strip-like cathodes 108 and 110, Fig. 1, an anode 114, and a fluorescent screen 122 deposited over transparent strip electrodes 118 extending at right angles to the cathode strips. In operation the anode 114 is earthed and -250 V is applied to the start cathode 108 to generate a glow discharge which is sequentially transferred along the cathodes by the sequential application of -250 V to each of the lines 134, 136 and 138 whilst the other two are maintained at -150 V. The glow discharge provides a source of electrons, and ions are prevented from bombarding the screen by inclining the anode strips 114 as illustrated. When a particular cathode is energized, selected electrodes 118 are also energized so that electrons impinge on display points corresponding to the intersection of the cathode with the selected electrodes. The selected electrodes 118 may be energized with a constant voltage of 6-10 volts for an alphanumeric display, or with a variable analogue or digital voltage to provide a grey scale. For a colour display the groups of cathodes connected to lines 134-138 may correspond to three different colours, the luminescent screen then comprising strips of different colour phosphors.
GB2536072A 1971-06-29 1972-05-31 Information display discharge devices Expired GB1360356A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US15797171A 1971-06-29 1971-06-29

Publications (1)

Publication Number Publication Date
GB1360356A true GB1360356A (en) 1974-07-17

Family

ID=22566142

Family Applications (1)

Application Number Title Priority Date Filing Date
GB2536072A Expired GB1360356A (en) 1971-06-29 1972-05-31 Information display discharge devices

Country Status (5)

Country Link
US (1) US3725731A (en)
JP (1) JPS5443871B1 (en)
DE (1) DE2222907A1 (en)
FR (1) FR2143708B1 (en)
GB (1) GB1360356A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2235819A (en) * 1989-08-12 1991-03-13 Cathodeon Ltd Gas discharge display device

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL7214702A (en) * 1972-10-31 1974-05-02
US3961217A (en) * 1975-02-24 1976-06-01 Burroughs Corporation Gaseous discharge display panel having two color bar display
DE2926393C2 (en) * 1979-06-29 1982-10-07 Siemens AG, 1000 Berlin und 8000 München Gas discharge indicator
JPS58199390A (en) * 1982-05-17 1983-11-19 株式会社日立製作所 Gas discharge display
US5872541A (en) * 1987-07-15 1999-02-16 Canon Kabushiki Kaisha Method for displaying images with electron emitting device

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3262010A (en) * 1960-08-31 1966-07-19 Hughes Aircraft Co Electrical display apparatus incorpolrating electroluminescent and gas discharge devices
BE755591Q (en) * 1967-11-24 1971-02-15 Owens Illinois Inc GASEOUS DISCHARGE MEMORIZATION AND REPRODUCTION DEVICE AND ITS OPERATING MODE
US3603836A (en) * 1969-04-02 1971-09-07 John D Grier Conductor configurations for discharge panels

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2235819A (en) * 1989-08-12 1991-03-13 Cathodeon Ltd Gas discharge display device

Also Published As

Publication number Publication date
FR2143708B1 (en) 1974-07-26
DE2222907A1 (en) 1973-01-18
US3725731A (en) 1973-04-03
JPS5443871B1 (en) 1979-12-22
FR2143708A1 (en) 1973-02-09

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Legal Events

Date Code Title Description
PS Patent sealed [section 19, patents act 1949]
PCNP Patent ceased through non-payment of renewal fee