US3803586A - Gas discharge display device - Google Patents

Gas discharge display device Download PDF

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Publication number
US3803586A
US3803586A US00341466A US34146673A US3803586A US 3803586 A US3803586 A US 3803586A US 00341466 A US00341466 A US 00341466A US 34146673 A US34146673 A US 34146673A US 3803586 A US3803586 A US 3803586A
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US
United States
Prior art keywords
auxiliary
discharge portion
anode
electrodes
display device
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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 - Lifetime
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US00341466A
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English (en)
Inventor
Gelder Z Van
M Mattheij
J Johanns
Boer T De
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US Philips Corp
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US Philips Corp
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Publication date
Application filed by US Philips Corp filed Critical US Philips Corp
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    • 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

Definitions

  • GAS DISCHARGE DISPLAY DEVICE Inventors: Johannes Hendricus Maria Johanns; Thiis Johannes De Boer; Zeger Van Gelder; Mathieu Martinus Maria Mattheii, all of Emmasingel, Eindhoven, Netherlands Assignee: U.S. Philips Corporation, New
  • ABSTRACT Gas discharge display device of a cross-bar type which comprises a cathode system, an auxiliary anode system and an anode system and in which in order to permit the use of low-dissipation control circuits the electrodes of the auxiliary anode system are at right angles to those of the anode system.
  • the invention relates to a gas discharge display device which includes a system of cathodes and auxiliary anodes which belongs to an auxiliary discharge portion and a system of anodes which together with the system of cathodes belongs to a main discharge portion which serves for visual display, a first control circuit being coupled to the auxiliary discharge portion for obtaining linewise firing, along an electrode of the auxiliary discharge portion substantially at right angles to the electrodes of the anode system, of part of the auxiliary discharge portion whilst a second control circuit is coupled to the main discharge portion for firing, along a fired line of the auxiliary discharge portion, parts of the main discharge portion which are situated along electrodes of the anode system.
  • a gas discharge display device of the aforementioned type in which by means of the first control circuit the electrodes of the cathode system which are at right angles to those of the anode system are successively energized.
  • the electrodes of the auxiliary anode system are at right angles to those of the cathode system and are connected via a limiting resistor to a fixed potential. The number of anodes of this display device is small.
  • a gas discharge display device of the type mentioned at the beginning of this specification is characterized in that the said electrode of the auxiliary discharge potion along which linewise firing takes place is an auxiliary anode of the auxiliary anode system, which auxiliary anode extends substantially at right angles to the electrodes of the anode system, the first control circuit being coupled to the electrodes of the auxiliary anode system.
  • the cathodes may be at a fixed potential, so that the first control circuit controls only the auxiliary anodes which pass auxiliary discharge current and hence need to draw appreciably less current than the cathodes, which pass both the auxiliary discharge current and the main discharge current.
  • all the cathodes may commonly be driven by a third control circuit, in which case only a single stage is required which must be capable of passing a large current.
  • the cathodes may be arranged at right angles to the anodes or at right angles to the auxiliary anodes.
  • the arrangement according to the invention results in that the current to be supplied by the control circuits are reduced to a minimum, which is of importance for obtaining cheap transistor circuits.
  • FIG. 1 shows a simplified block diagram of a gas discharge display device according to the invention
  • FIG. 2 shows the waveforms of the control signals which are produced at the various electrodes of the display device shown in FIG. 1.
  • a gas discharge display pannel 1 has a cathode system comprising cathodes 3, 5 and 7, an auxiliary anode system comprising auxiliary anodes 9, 11 and 13 each coated with a resistance layer 10, 12 and 14 respectively, and an anode system comprising anodes 15, 17 and 19.
  • auxiliary anodes 9, l1 and 13 together with the cathodes 3, 5 and 7 form part of an auxiliary discharge portion, and the anodes 15, 17 and 19 together with the cathodes 3, 5 and 7 form part of a main discharge portion.
  • the auxiliary anodes 9, 11 and 13 extend at right angles to the anodes 15, 17 and 19 and are each connected to an output 21, 23 and 25 respectively of a first control circuit 27 which comprises control stages 29, 31 and 33 each coupled to one of the said outputs.
  • the anodes 15, 17 and 19 are connected to outputs 35, 37 and 39 respectively of a second control circuit 41 which comprises control stages 43, 45 and 47 which each are connected to one of these outputs.
  • the cathodes 3, 5 and 7 are connected to one another and to an output 49 of a third control circuit 51.
  • Voltage wave forms 221, 223, 225, 235, 237, 239 and 249 shown in FIG. 2 are produced at the outputs 21, 23, 25, 35, 37, 39 and 49 respectively.
  • FIG. 2 further shows instants t, to 't which are of importance for explaining the operation of the circuit arrangement.
  • the voltage waveforms are idealized and not drawn to scale.
  • the voltages at the anodes 35 and 39 are increased, so that in the main discharge portion main discharges are produced at the points at which the fired line of the auxiliary discharge portion along the auxiliary anode 9 crosses the said anodes 35 and 39, and these main discharges are used for visual display either directly or, for example, via conversion of light by means of phosphors.
  • the voltage set up at the auxiliary anode 9 may be removed by decreasing it at the instant t
  • the main discharges at the anodes 35 and 39 are extinguished in that the voltage at these anodes is decreased and simultaneously the voltage at the cathodes 3, 5 and 7 is increased.
  • the voltage at the anode 37 is increased, causing the crossing of this anode and the fired auxiliary discharge line to emit light.
  • the auxliary discharge portion includes only one control circuit 51 which must be capable of supplying a large current. In many cases this circuit may even be dispensed with. In that case a fixed potential is applied to the cathodes.
  • the cathodes extend at right angles to the auxiliary anodes, they may obviously extend in the same direction as these auxiliary anodes.
  • the instants t t and t, for interrupting the current to the auxiliary anodes may advantageously be selected in the manner mentioned hereinbefore so as to reduce the dissipation in the first control circuit 27 to a minimum, however, if desired they may be later.
  • the deionisation time of the gas discharge must obviously. betaken into account.
  • the currents in the main discharge portion may be modulated in a suitable manner for obtaining a grey scale.
  • Gas discharge display device which includes a system of cathodes and auxiliary anodes which belongs to an auxiliary discharge portion and a system of anodes which together with the system of cathodes belongs to a main discharge portion which serves for visual display, a first control circuit being coupled to the auxiliary discharge portion for obtaining line-wise firing, along an electrode of the auxiliary discharge portion of substantially at right angles to electrodes of the anode system, of part of the auxiliary discharge portion whilst a second control circuit is coupled to the main discharge portion for firing, along a fired line of the auxiliary discharge portion, parts of the main discharge portion which are situated along electrodes of the anode system, characterized in that the said electrode of the auxiliary discharge portion along which linewise firing takes place is an auxiliary anode (9, 11 or 13) of the auxiliary anode system, which auxiliary anode extends substantially at right angles to the electrodes (l5, l7, 19) of the anode system, the first control circuit (27) being coupled to the electrodes of the auxiliary anode
  • Gas discharge display device as claimed in claim 1, characterized in that the electrodes (3, 5, 7) of the cathode system are connected to oneanother and to a third control circuit.
  • Gas discharge display device asclaimed in claim 1, characterized in that the said auxiliary anode (9, 11 or 13) extends substantially at right angles to the electrodes (3, 5, 7) of the cathode system.

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  • Gas-Filled Discharge Tubes (AREA)
  • Control Of Indicators Other Than Cathode Ray Tubes (AREA)
US00341466A 1972-04-06 1973-03-15 Gas discharge display device Expired - Lifetime US3803586A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
NL7204576A NL7204576A (ja) 1972-04-06 1972-04-06

Publications (1)

Publication Number Publication Date
US3803586A true US3803586A (en) 1974-04-09

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ID=19815788

Family Applications (1)

Application Number Title Priority Date Filing Date
US00341466A Expired - Lifetime US3803586A (en) 1972-04-06 1973-03-15 Gas discharge display device

Country Status (9)

Country Link
US (1) US3803586A (ja)
JP (1) JPS4917964A (ja)
AT (1) AT320754B (ja)
CA (1) CA970454A (ja)
DE (1) DE2314494A1 (ja)
FR (1) FR2179105B1 (ja)
GB (1) GB1422734A (ja)
IT (1) IT980752B (ja)
NL (1) NL7204576A (ja)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3986185A (en) * 1974-12-23 1976-10-12 Texas Instruments Gas discharge display with control cells
US3990068A (en) * 1976-01-26 1976-11-02 Control Data Corporation Plasma display panel drive system
US4044349A (en) * 1973-09-21 1977-08-23 Fujitsu Limited Gas discharge panel and method for driving the same
EP0141669A2 (en) * 1983-11-08 1985-05-15 Oki Electric Industry Company, Limited Plasma display system
US4839637A (en) * 1986-02-10 1989-06-13 Hitachi, Ltd. Method of driving gas-discharge panel

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4027195A (en) * 1974-08-23 1977-05-31 Nippon Electric Company Ltd. Voltage switching device comprising a gas discharge panel
JPS5261614A (en) * 1975-11-14 1977-05-21 Nissan Motor Co Ltd Direct charging method for solid propellant agent of rocket motor
JPS52123125A (en) * 1976-04-09 1977-10-17 Hitachi Ltd Memory panel driving system
JPS54159518A (en) * 1978-06-07 1979-12-17 Nissan Motor Co Ltd End face combustion type rocket motor
JPS6323195A (ja) * 1987-05-13 1988-01-30 株式会社日立製作所 平面放電表示素子の駆動方法

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3042823A (en) * 1958-11-28 1962-07-03 Ibm High speed electronic memory
US3157824A (en) * 1962-04-04 1964-11-17 Lear Siegler Inc Simplified memory circuit for x-y plotter
US3509408A (en) * 1967-12-13 1970-04-28 Burroughs Corp Display panel with separate signal and sustainer electrodes
US3683364A (en) * 1971-01-18 1972-08-08 Burroughs Corp Display panel wherein each scanning cell is associated with a plurality of display cells

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL7004088A (ja) * 1970-03-21 1971-09-23

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3042823A (en) * 1958-11-28 1962-07-03 Ibm High speed electronic memory
US3157824A (en) * 1962-04-04 1964-11-17 Lear Siegler Inc Simplified memory circuit for x-y plotter
US3509408A (en) * 1967-12-13 1970-04-28 Burroughs Corp Display panel with separate signal and sustainer electrodes
US3683364A (en) * 1971-01-18 1972-08-08 Burroughs Corp Display panel wherein each scanning cell is associated with a plurality of display cells

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4044349A (en) * 1973-09-21 1977-08-23 Fujitsu Limited Gas discharge panel and method for driving the same
US3986185A (en) * 1974-12-23 1976-10-12 Texas Instruments Gas discharge display with control cells
US3990068A (en) * 1976-01-26 1976-11-02 Control Data Corporation Plasma display panel drive system
EP0141669A2 (en) * 1983-11-08 1985-05-15 Oki Electric Industry Company, Limited Plasma display system
EP0141669A3 (en) * 1983-11-08 1986-02-19 Oki Electric Industry Company, Limited Plasma display system
US4839637A (en) * 1986-02-10 1989-06-13 Hitachi, Ltd. Method of driving gas-discharge panel

Also Published As

Publication number Publication date
DE2314494A1 (de) 1973-10-18
JPS4917964A (ja) 1974-02-16
AT320754B (de) 1975-02-25
CA970454A (en) 1975-07-01
IT980752B (it) 1974-10-10
GB1422734A (en) 1976-01-28
FR2179105B1 (ja) 1978-05-26
FR2179105A1 (ja) 1973-11-16
NL7204576A (ja) 1973-10-09

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