GB1340226A - Glow-discharge display device - Google Patents

Glow-discharge display device

Info

Publication number
GB1340226A
GB1340226A GB3897671A GB3897671A GB1340226A GB 1340226 A GB1340226 A GB 1340226A GB 3897671 A GB3897671 A GB 3897671A GB 3897671 A GB3897671 A GB 3897671A GB 1340226 A GB1340226 A GB 1340226A
Authority
GB
United Kingdom
Prior art keywords
discharge
cavities
arrays
plate
electrodes
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
GB3897671A
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.)
Philips Electronics UK Ltd
Original Assignee
Philips Electronic and Associated Industries 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 Philips Electronic and Associated Industries Ltd filed Critical Philips Electronic and Associated Industries Ltd
Publication of GB1340226A publication Critical patent/GB1340226A/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
    • H01J17/492—Display panels, e.g. with crossed electrodes, e.g. making use of direct current with crossed electrodes
    • H01J17/494—Display panels, e.g. with crossed electrodes, e.g. making use of direct current with crossed electrodes using sequential transfer of the discharges, e.g. of the self-scan type

Landscapes

  • Gas-Filled Discharge Tubes (AREA)

Abstract

1340226 Gas discharge display panels PHILIPS ELECTRONIC & ASSOCIATED INDUSTRIES Ltd 19 Aug 1971 [22 Aug 1970] 38976/71 Heading H1D A display device in which positive column discharge is produced comprises a plurality of cavities having walls coated with fluorescent material and each containing electrodes spaced apart by at least twice the cavity width and means for reducing the ignition voltage of the discharge. The device comprises crossed conductor arrays 35 ... 39, 56 ... 59 on either side of a plate 3 containing cavities coated with reflecting TiO 2 and Ca halophosphate phosphor. The ignition voltage is reduced by charged particles from cathode glow discharges in a corresponding array of cavities in a plate 18 between conductors 56 ... 59 and a third array 64 ... 66. A sustain voltage below the ignition voltage is applied between the first and second arrays. A potential between a selected pair of conductors in the second and third arrays produces the glow discharge. Current limiting resistors comprising a resistive layer on all electrodes of one array may be provided. The panel is filled with Hg and A at 7 cm. pressure. In another embodiment the cavities in the plate 3 extend into a gas space in which charged particles are produced by a plasma discharge between a pair of electrodes; a discharge is produced in selected cavities by varying the potential applied to the corresponding conductors of the first and second arrays. In a further embodiment the plate 18 is rotated through 90 degrees so that first and second arrays are parallel and a gas space in which plasma is generated by a discharge between two electrodes added behind plate 18. The passage of charged particles to the cavities in plate 3 and the display discharges then controlled by the potentials applied to the second array electrodes; the potential between the first and third arrays being constant. The device is used to display alpha-numeric symbols and colour TV if several phosphors are used.
GB3897671A 1970-08-22 1971-08-19 Glow-discharge display device Expired GB1340226A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
NL7012459A NL154617B (en) 1970-08-22 1970-08-22 DEVICE FOR DISPLAYING IMAGES CONTAINING A SYSTEM IN ROWS AND COLUMNS GAS DISCHARGE CELLS.

Publications (1)

Publication Number Publication Date
GB1340226A true GB1340226A (en) 1973-12-12

Family

ID=19810837

Family Applications (1)

Application Number Title Priority Date Filing Date
GB3897671A Expired GB1340226A (en) 1970-08-22 1971-08-19 Glow-discharge display device

Country Status (6)

Country Link
JP (1) JPS5242025B1 (en)
CA (1) CA943611A (en)
DE (1) DE2137760A1 (en)
FR (1) FR2104605A5 (en)
GB (1) GB1340226A (en)
NL (1) NL154617B (en)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2508393C2 (en) * 1975-02-26 1983-02-17 Siemens AG, 1000 Berlin und 8000 München Gas discharge indicating device and method for its operation
DE2929098A1 (en) * 1979-07-18 1981-02-05 Siemens Ag IMAGE DISPLAY DEVICE
DE3132070A1 (en) * 1981-08-13 1983-03-03 Siemens AG, 1000 Berlin und 8000 München Control of the electron flux in plasma displays

Also Published As

Publication number Publication date
NL7012459A (en) 1972-02-24
FR2104605A5 (en) 1972-04-14
JPS5242025B1 (en) 1977-10-21
NL154617B (en) 1977-09-15
CA943611A (en) 1974-03-12
DE2137760A1 (en) 1972-02-24

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Legal Events

Date Code Title Description
PS Patent sealed
PCNP Patent ceased through non-payment of renewal fee