EP0021354A1 - Gasentladungsanzeigevorrichtung mit einem Lamellengitter im Gasentladungsraum - Google Patents

Gasentladungsanzeigevorrichtung mit einem Lamellengitter im Gasentladungsraum Download PDF

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Publication number
EP0021354A1
EP0021354A1 EP80103428A EP80103428A EP0021354A1 EP 0021354 A1 EP0021354 A1 EP 0021354A1 EP 80103428 A EP80103428 A EP 80103428A EP 80103428 A EP80103428 A EP 80103428A EP 0021354 A1 EP0021354 A1 EP 0021354A1
Authority
EP
European Patent Office
Prior art keywords
strip
gas discharge
grid
cathode
control plate
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.)
Ceased
Application number
EP80103428A
Other languages
German (de)
English (en)
French (fr)
Inventor
Burkhard Dipl.-Phys. Littwin
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.)
Siemens AG
Original Assignee
Siemens AG
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 Siemens AG filed Critical Siemens AG
Publication of EP0021354A1 publication Critical patent/EP0021354A1/de
Ceased legal-status Critical Current

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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

Definitions

  • the invention relates to a gas discharge display device with a gas-filled space, which is sealed gas-tight on one side by a front plate and on the opposite side by a rear plate and is divided by a control plate into a gas discharge space and a post-acceleration space, which is on one side as a line conductor and on it on the other side, as a column conductor, carries a matrix path that can be controlled separately and is broken together with these paths in the intersection points of the matrix, and on the front plate side there is a luminescent screen provided with an anode layer and delimiting the post-acceleration space, and on the rear plate side one or more insulated from one another , opposite the gas discharge space cathodes.
  • a gas discharge display device with a cathode which consists of cathode strips which are isolated from one another, parallel to one another and can be controlled separately, is known from DE-OS 26 43 915.
  • the division of the cathode into individual cathode strips which are insulated from one another is a further development of a surface cathode as is known from DE-OS 24 12 869 and is used for image reproduction in so-called flat screens or gas discharge displays.
  • Such a display device works on the principle of the spatial separation of electron generation and electron acceleration.
  • the tube used for this is divided into two chambers, which are connected to each other via a conductor matrix (control plate) perforated at the intersection of their rows and columns.
  • the chamber between the cathode or cathodes on the back plate and the strip-shaped auxiliary anodes as rows of the conductor matrix is the space for the gas discharge.
  • the other chamber is the post-acceleration space between the column level of the conductor matrix (control plate) and a surface anode, which is a fluorescent screen electrode.
  • DE-OS 26 01 925 discloses a flat gas discharge indicator element with a plurality of gas discharge cells arranged in a matrix, in which a grid electrode is arranged in each of the cells between an anode and a cathode and contains at least one opening, the edge profile of which matches the projection of the cathode is.
  • metal atoms sputtered from the cathode can appear on the row lines of the control plate precipitate and deteriorate the insulation resistance between the lines.
  • the present invention has for its object to avoid these disadvantages in a gas discharge display device.
  • the gas discharge display device has the advantage that the strip lamellae, which are interleaved and offset from one another and form a lamella grid between the cathode and control plate in the gas discharge space of the device, ensure that the direct path between the cathode and control plate is adjusted. Fast electrons, light and metal atoms are caught by the lamellar grid.
  • the lamellar grid is preferably composed of 1 mm to 20 mm wide strips that conduct the electrical current. It may be advantageous to connect the individual strips of the lamellar grid to one another in an electrically conductive manner, so that individual parts of the grid, which advantageously consists of aluminum, can be punched out of an aluminum sheet;
  • the lamellar grid is intended to shield the plasma of the gas discharge against the row lines of the control plate, it is expedient not to use the full cathode current, but rather to direct only part of the row lines.
  • the strong reduction in the dark current from, for example, a few 100 ⁇ A to values of approximately 1 ⁇ A in the case of uncontrolled row lines results in a reduction in the background brightness of a gas discharge display device according to the invention.
  • the gas discharge display device shown in Fig. 1 consists essentially of a cathode 1 and a control plate 2, which limit the gas discharge space, and a screen 4, which limits the post-acceleration space with the control plate 2.
  • the row lines 5 and the column lines 6 are applied to the cathode side of the control plate 2.
  • the lamella grid 3 according to the invention is arranged between the control plate 2 and the cathode 1.
  • distance cathode - lamella grid equal to 17 mm; Strip width of lamellar grid equal to 2.2 mm; Width of the spaces in the louvre grid equal to 2.0 mm; Distance control plate - lamella grid equal to 5 mm; Height of the post-acceleration room is 1 mm; Filling gas xenon with a pressure of less than or equal to 0.1 mbar; Burning voltage aluminum cathode equal to 315 V; Control voltage lamella grid equal to 0 V; row line connected equal to + 10 V; Control voltage blocked row lines between -4 and -30 V; Column lines lit up equal to +10 V; Column lines blocked equal to 0 V; Post-acceleration voltage equal to 3 kV, line scan equal to 300 lines / 40 ms; Pixel grid of the cell 0.32x0.64 mm.
  • FIGS. 2 to 4 show two exemplary embodiments of the lamellar grating schematically in section (FIGS. 2 and 4) and in plan view (FIGS. 3 and 5).
  • the straight connection between cathode 1 and control plate 2 is adjusted by the staggered arrangement of successive lamellar grid strips 3. There by forcing particles flying from the cathode 1 to the control plate 2 to curved paths, which lead to an obstacle to the movement of the particles, such as electrons, photons or metal atoms.
  • a suitable control voltage applied to the row lines 5 of the control plate 2 or to the lamellar grid 3 can ensure that some of the electrons emanating from the cathode 1 pass through the lamellar grid 3 to the row line 5 which is currently being driven.
EP80103428A 1979-06-29 1980-06-19 Gasentladungsanzeigevorrichtung mit einem Lamellengitter im Gasentladungsraum Ceased EP0021354A1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE2926393 1979-06-29
DE2926393A DE2926393C2 (de) 1979-06-29 1979-06-29 Gasentladungsanzeigevorrichtung

Publications (1)

Publication Number Publication Date
EP0021354A1 true EP0021354A1 (de) 1981-01-07

Family

ID=6074551

Family Applications (1)

Application Number Title Priority Date Filing Date
EP80103428A Ceased EP0021354A1 (de) 1979-06-29 1980-06-19 Gasentladungsanzeigevorrichtung mit einem Lamellengitter im Gasentladungsraum

Country Status (4)

Country Link
US (1) US4328444A (ja)
EP (1) EP0021354A1 (ja)
JP (1) JPS567332A (ja)
DE (1) DE2926393C2 (ja)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3104510A1 (de) * 1981-02-09 1982-09-16 Siemens AG, 1000 Berlin und 8000 München "gasentladungseinrichtung fuer eine bildanzeigevorrichtung"
EP0097304A2 (de) * 1982-06-18 1984-01-04 Siemens Aktiengesellschaft Flache Elektronenstrahlröhre mit einer Gasentladung als Elektronenquelle
EP0480518A1 (fr) * 1990-10-12 1992-04-15 Societe Anonyme D'etudes Et Realisations Nucleaires S.O.D.E.R.N. Source d'électrons présentant un dispositif de rétention de matières

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3207685A1 (de) * 1982-03-03 1983-09-15 Siemens AG, 1000 Berlin und 8000 München Gasentladungsanzeigevorrichtung
US4625148A (en) * 1983-03-28 1986-11-25 Siemens Ag Gas discharge display device with an auxiliary anode control plate
US5430605A (en) * 1992-08-04 1995-07-04 Murata Erie North America, Inc. Composite multilayer capacitive device and method for fabricating the same
US5227951A (en) * 1992-08-04 1993-07-13 Murata Erie North America, Inc. Composite multilayer capacitive device and method for fabricating the same

Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1811272A1 (de) * 1967-11-28 1970-04-02 Matsushita Electric Ind Co Ltd Schautafel
DE1614862A1 (de) * 1967-09-15 1970-12-23 Telefunken Patent Anzeigeroehre
DE2222907A1 (de) * 1971-06-29 1973-01-18 Ibm Anordnung zur bildlichen darstellung von informationen mit einem phosphoreszenzschirm
DE2236872A1 (de) * 1971-08-31 1973-03-15 Ibm Vorrichtung zur anzeige von daten
DE2412869A1 (de) * 1974-03-18 1975-10-02 Siemens Ag Entladungs-lumineszenz-anzeigeeinrichtung
DE2601925A1 (de) * 1975-01-24 1976-07-29 Hitachi Ltd Gasentladungsanzeigeelement
DE2645562A1 (de) * 1975-10-08 1977-04-21 Varian Associates Gasentladungsanzeigevorrichtung
DE2643915A1 (de) * 1976-09-29 1978-03-30 Siemens Ag Bildanzeigeeinrichtung

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL243432A (ja) * 1958-09-26
US3852634A (en) * 1972-02-17 1974-12-03 L Sullos Switch device for point selector electrodes in flat television screens

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1614862A1 (de) * 1967-09-15 1970-12-23 Telefunken Patent Anzeigeroehre
DE1811272A1 (de) * 1967-11-28 1970-04-02 Matsushita Electric Ind Co Ltd Schautafel
DE2222907A1 (de) * 1971-06-29 1973-01-18 Ibm Anordnung zur bildlichen darstellung von informationen mit einem phosphoreszenzschirm
DE2236872A1 (de) * 1971-08-31 1973-03-15 Ibm Vorrichtung zur anzeige von daten
DE2412869A1 (de) * 1974-03-18 1975-10-02 Siemens Ag Entladungs-lumineszenz-anzeigeeinrichtung
DE2601925A1 (de) * 1975-01-24 1976-07-29 Hitachi Ltd Gasentladungsanzeigeelement
DE2645562A1 (de) * 1975-10-08 1977-04-21 Varian Associates Gasentladungsanzeigevorrichtung
DE2643915A1 (de) * 1976-09-29 1978-03-30 Siemens Ag Bildanzeigeeinrichtung

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3104510A1 (de) * 1981-02-09 1982-09-16 Siemens AG, 1000 Berlin und 8000 München "gasentladungseinrichtung fuer eine bildanzeigevorrichtung"
EP0097304A2 (de) * 1982-06-18 1984-01-04 Siemens Aktiengesellschaft Flache Elektronenstrahlröhre mit einer Gasentladung als Elektronenquelle
EP0097304A3 (en) * 1982-06-18 1984-10-17 Siemens Aktiengesellschaft Flat electron beam tube with a gas discharge as an electron source
EP0480518A1 (fr) * 1990-10-12 1992-04-15 Societe Anonyme D'etudes Et Realisations Nucleaires S.O.D.E.R.N. Source d'électrons présentant un dispositif de rétention de matières
FR2667980A1 (fr) * 1990-10-12 1992-04-17 Sodern Source d'electrons presentant un dispositif de retention de matieres.

Also Published As

Publication number Publication date
DE2926393C2 (de) 1982-10-07
US4328444A (en) 1982-05-04
DE2926393A1 (de) 1981-01-08
JPS567332A (en) 1981-01-26

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PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

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Effective date: 19810603

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Inventor name: LITTWIN, BURKHARD, DIPL.-PHYS.