GB1363672A - Data display device of the gas discharge type - Google Patents

Data display device of the gas discharge type

Info

Publication number
GB1363672A
GB1363672A GB4404171A GB4404171A GB1363672A GB 1363672 A GB1363672 A GB 1363672A GB 4404171 A GB4404171 A GB 4404171A GB 4404171 A GB4404171 A GB 4404171A GB 1363672 A GB1363672 A GB 1363672A
Authority
GB
United Kingdom
Prior art keywords
cathodes
anode
screen electrode
gas discharge
anodes
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
GB4404171A
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.)
THOMSON CXF
Original Assignee
THOMSON CXF
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 THOMSON CXF filed Critical THOMSON CXF
Publication of GB1363672A publication Critical patent/GB1363672A/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
    • H01J17/491—Display panels, e.g. with crossed electrodes, e.g. making use of direct current with electrodes arranged side by side and substantially in the same plane, e.g. for displaying alphanumeric characters
    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09F—DISPLAYING; ADVERTISING; SIGNS; LABELS OR NAME-PLATES; SEALS
    • G09F9/00—Indicating arrangements for variable information in which the information is built-up on a support by selection or combination of individual elements
    • G09F9/30—Indicating arrangements for variable information in which the information is built-up on a support by selection or combination of individual elements in which the desired character or characters are formed by combining individual elements
    • G09F9/313—Indicating arrangements for variable information in which the information is built-up on a support by selection or combination of individual elements in which the desired character or characters are formed by combining individual elements being gas discharge devices

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Theoretical Computer Science (AREA)
  • Gas-Filled Discharge Tubes (AREA)
  • Control Of Indicators Other Than Cathode Ray Tubes (AREA)

Abstract

1363672 Gas discharge display tubes and panels THOMSON-CSF 21 Sept 1971 [24 Sept 1970] 44041/71 Heading H1D A. data display device of the gas discharge type comprises in combination at least one anode 8, a plurality of cathodes 4 separated from one another and from said anode, means 2 for applying voltages separately to each cathode, means defining a plurality of cavities each containing one of said cathodes, a screen electrode 6 and insulating elements 5 and 7 disposed respectively between said cathodes 4 and said screen electrode 6 and between said screen electrode 6 and said anode 8. The firing and extinguishing voltages of the anode-cathode gaps are controlled by the bias voltage applied to the screen electrode 6 so the device exhibits a "memory" effect. In the unit shown the cathodes 4 are seven metal segments arranged in "figure 8" formation, and the apertures in the insulating elements 5 and 7, screen electrode 6 and anode 8 are shaped correspondingly. In an alternative arrangement (Figs. 3 and 4, not shown) the apertures are circular, forming cells which are addressed by a cross-bar system of cathodes and anodes, the anodes being common to a plurality of display units. The device may alternatively be operated with the electrode 8 functioning as a cathode and the electrodes 4 functioning as anodes.
GB4404171A 1970-09-24 1971-09-21 Data display device of the gas discharge type Expired GB1363672A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR7034663A FR2106803A5 (en) 1970-09-24 1970-09-24

Publications (1)

Publication Number Publication Date
GB1363672A true GB1363672A (en) 1974-08-14

Family

ID=9061808

Family Applications (1)

Application Number Title Priority Date Filing Date
GB4404171A Expired GB1363672A (en) 1970-09-24 1971-09-21 Data display device of the gas discharge type

Country Status (3)

Country Link
US (1) US3735180A (en)
FR (1) FR2106803A5 (en)
GB (1) GB1363672A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0007562A1 (en) * 1978-07-20 1980-02-06 Siemens Aktiengesellschaft Cathode for a gas discharge display tube

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS566102B2 (en) * 1972-05-23 1981-02-09
US4259613A (en) * 1978-01-11 1981-03-31 Wagner Electric Corporation Fluorescent indicator and method of making same

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3559190A (en) * 1966-01-18 1971-01-26 Univ Illinois Gaseous display and memory apparatus
US3641383A (en) * 1968-09-25 1972-02-08 Matsushita Electronics Corp Glow discharge tube for code display

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0007562A1 (en) * 1978-07-20 1980-02-06 Siemens Aktiengesellschaft Cathode for a gas discharge display tube

Also Published As

Publication number Publication date
DE2147881B2 (en) 1975-11-20
FR2106803A5 (en) 1972-05-05
DE2147881A1 (en) 1972-03-30
US3735180A (en) 1973-05-22

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Legal Events

Date Code Title Description
PS Patent sealed [section 19, patents act 1949]
PLNP Patent lapsed through nonpayment of renewal fees