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EP0031921A1 - Dispositif d'affichage à décharge à gaz comportant au moins un cadre d'écartement limitant l'espace de post-accélération - Google Patents

Dispositif d'affichage à décharge à gaz comportant au moins un cadre d'écartement limitant l'espace de post-accélération Download PDF

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Publication number
EP0031921A1
EP0031921A1 EP80107828A EP80107828A EP0031921A1 EP 0031921 A1 EP0031921 A1 EP 0031921A1 EP 80107828 A EP80107828 A EP 80107828A EP 80107828 A EP80107828 A EP 80107828A EP 0031921 A1 EP0031921 A1 EP 0031921A1
Authority
EP
European Patent Office
Prior art keywords
post
spacer frame
gas discharge
acceleration
glass
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.)
Granted
Application number
EP80107828A
Other languages
German (de)
English (en)
Other versions
EP0031921B1 (fr
Inventor
Burkhard Dipl.-Phys. Littwin
Wilhelm Huber
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
Siemens Corp
Original Assignee
Siemens AG
Siemens 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 Siemens AG, Siemens Corp filed Critical Siemens AG
Priority to AT80107828T priority Critical patent/ATE7435T1/de
Publication of EP0031921A1 publication Critical patent/EP0031921A1/fr
Application granted granted Critical
Publication of EP0031921B1 publication Critical patent/EP0031921B1/fr
Expired 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 disk 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 ,
  • the gas discharge space delimiting cathodes, with spacing frames being provided between the control disk and the fluorescent screen and between the control disk and cathode (s).
  • 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 isolated from one another is a further development of a surface cathode, as is known from DE-OS 24 12 869 is 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 disk) 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 disk) and a surface anode, which represents a fluorescent screen electrode.
  • control disc control perforated plate
  • fluorescent screen which have metal layers on their surfaces.
  • the metal layers carry floating potentials and thereby homogenize the acceleration field (patent application P 28 55 108.8).
  • the present invention is based on the object of creating a gas discharge display device which makes it possible to use a high post-acceleration voltage in the post-acceleration space without causing electrical flashovers.
  • a gas discharge display device of the type mentioned at the outset that the post-free post-acceleration space 1 is limited in its lateral boundary by at least one spacing frame 2, the inner boundary of which largely corresponds to the outer boundary of the active luminescent screen surface and the width thereof It is designed that the inner frame edge remains free of the materials that produce a gas-tight connection and that separates the outer edge regions of the potential layers delimiting the post-acceleration space 1.
  • the spacer frame is preferably surrounded by a second, outer spacer frame, the vacuum tight sealing of the post-acceleration room.
  • the spacing frames are expediently made of glass, which is adapted in its thermal expansion coefficient to that of the fluorescent screen glass.
  • the gas discharge display device has the advantage that a high post-acceleration voltage can be used in the post-acceleration space without causing electrical flashovers. Electrical flashovers on insulators in vacuum occur compared to the breakdown field strength in vacuum at significantly lower field strengths. It is therefore expedient to use a support-free post-acceleration space so that the critical area in which insulator flashovers can occur is limited to the lateral boundary of the post-acceleration space.
  • the gas discharge display device shown schematically in FIG. 1 essentially consists of a post-acceleration chamber 1 with an excessively wide spacing frame 2 between the luminescent screen 4 and control disk 5 to increase the high-voltage strength of the device.
  • the adhesive seams between the spacer frame 2 and the control disk 5 or fluorescent screen 4 are provided with the reference number 6.
  • the spacer frame 2 projects beyond the adhesive seams 6 laterally.
  • the high-voltage strength of a 1 mm long acceleration path based on electrical arcing at the edge of the post-acceleration space 1 is increased, for example, from 2.5 kV to 6 kV when the 0.8 mm high glass spacer frame 2 laterally projects over the adhesive seam 6 by about 5 mm in each case.
  • Fig. 2 shows a schematic representation of the structure of the inner part of the spacer frame 2 in the gas ..Discharge display device with post-acceleration space 1.
  • the spacer frame 2 extends close to the active part of the with a potential layer 7 and a light Layer 8 provided fluorescent screen 4.
  • the potential layers 7 of the post-acceleration space 1 are separated from one another in their edge regions by the inner part of the spacing frame 2.
  • the inner edge of the spacer frame 2 is free of sealing material, for example glass solder.
  • the part of the spacer frame 2 which is directed towards the outer edge of the gas discharge display device is used for vacuum-tight sealing.
  • Adjusting pins 9 are attached to the glass of the fluorescent screen 4 and remain there during the manufacturing process including the glass soldering technique. which are used to adjust the phosphor grid 8, photo-form plate and control disc 5.
  • Figures 3 to 5 show examples of construction variants.
  • the height of the second, outer spacing frame 3 is greater than the height of the post-acceleration space 1 in order to be able to also seal additional control grids in a vacuum-tight manner without additional glass solder seams.
  • the outer spacer frame 8 you can now depending on the requirements. Requirements use pre-sintered glass solder rods, which are brought into the correct shape in the glass solder process by the plastic deformation of the glass solder that takes place.
  • an additional control grid 10 provided with a potential layer 7 is arranged in the post-acceleration chamber 1 between the phosphor screen 4 provided with a potential layer 7 and a phosphor layer 8 and the control disk 5 provided with a potential layer 7.
  • the control grid 10 When assembling the device, the control grid 10 is first brought into the correct position on the control disc 5 and fixed with a high-temperature adhesive at some points (adhesive seams 6) in relation to the control disc 5. Then the inner spacer frame 2 is also fixed on the control grid 10 with a few drops of a high-temperature adhesive.
  • four presintered glass soldering rods with a width of approx. 1 mm and a thickness of 2.5 mm to 3 mm are placed around the inner spacing frame 2. The entire structure is then subjected to an annealing process. The glass solder initially present in excess fills when the fluorescent screen 4 drops to the level determined by the control grid 10 and inner spacing frame 2, and thus creates a tight connection between the control disk 5 and the fluorescent screen 4. Adjusting pins 9 are again provided for adjusting the arrangement.
  • the inner spacing frame 2 delimits the post-acceleration space 1 between the fluorescent screen 4 provided with a potential layer 7 and a phosphor grid 8 and the control grid 10 provided with a potential layer 7, which is arranged on the control disk 5 provided with the potential layer 7 (column conductor).
  • Spacer frame Men 2 control grid 10 and control disc 5 are adjusted by means of adjusting pins 9 and fixed by adhesive seams 6 from a high temperature adhesive.
  • the outer spacer frame 3 consists on two opposite sides of glass strips pasted with glass solder 11 and on both other sides of glass solder. It is advisable to use the glass strips where the control disc extends far from the display and must be supported.
  • Fig. 5 shows the structure of the post-acceleration room 1 for a fluorescent screen g las with an integrated spacer frame. Since in contrast to the screen structure with a flat front glass in the structure according to FIG. 5, the conductive layer (potential layer 7) of the fluorescent screen 4 and so that the high voltage is only present within the screen glass, the outer part of the wide spacing frame can be dispensed with. Therefore, you can place the high-voltage flashover preventing and protruding into the interior part of the spacer frame 2 in the form of glass strips in the screen pan and attach it to the edge of the integrated spacer frame, for example with glass solder 11, after all layers important for the function of the screen have been applied to the screen glass.
  • the adjustment pin 9 attached to the screen 4 in turn serves to adjust the control disk 5, the control electrode 10, which is provided with a metallization (potential layer 7) and the spacer frame 2.
  • FIG. 6 shows a schematic representation of the structure of an inner and outer spacer frame 2 combined into one unit in a gas discharge display device with a post-acceleration space 1, that of the control disk 5 provided with a potential layer 7 and that with a potential layer 7 and one Fluorescent layer 8 provided fluorescent screen 4 is limited.
  • the adjusting pin 9 extends from the fluorescent screen 4 through the spacer frame 2 and the control disk 5.
  • the spacer frame 2 is connected to the control disk 5 and the fluorescent screen 4 in a gas-tight manner via glass solder layers 11.

Landscapes

  • Gas-Filled Discharge Tubes (AREA)
  • Cathode-Ray Tubes And Fluorescent Screens For Display (AREA)
  • Vessels And Coating Films For Discharge Lamps (AREA)
  • Vessels, Lead-In Wires, Accessory Apparatuses For Cathode-Ray Tubes (AREA)
EP80107828A 1979-12-28 1980-12-11 Dispositif d'affichage à décharge à gaz comportant au moins un cadre d'écartement limitant l'espace de post-accélération Expired EP0031921B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT80107828T ATE7435T1 (de) 1979-12-28 1980-12-11 Gasentladungsanzeigevorrichtung mit mindestens einem den nachbeschleunigungsraum begrenzenden abstandsrahmen.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE2952528A DE2952528C2 (de) 1979-12-28 1979-12-28 Gasentladungsanzeigevorrichtung
DE2952528 1979-12-28

Publications (2)

Publication Number Publication Date
EP0031921A1 true EP0031921A1 (fr) 1981-07-15
EP0031921B1 EP0031921B1 (fr) 1984-05-09

Family

ID=6089752

Family Applications (1)

Application Number Title Priority Date Filing Date
EP80107828A Expired EP0031921B1 (fr) 1979-12-28 1980-12-11 Dispositif d'affichage à décharge à gaz comportant au moins un cadre d'écartement limitant l'espace de post-accélération

Country Status (5)

Country Link
US (1) US4362967A (fr)
EP (1) EP0031921B1 (fr)
JP (1) JPS56102051A (fr)
AT (1) ATE7435T1 (fr)
DE (1) DE2952528C2 (fr)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0087140A2 (fr) * 1982-02-23 1983-08-31 Siemens Aktiengesellschaft Méthode pour réduire la luminosité de fond dans la région d'image inférieure d'un panneau d'affichage
EP0133492A2 (fr) * 1983-08-03 1985-02-27 Siemens Aktiengesellschaft Panneau de décharge à gaz ayant un cadre d'espace
EP0212109A2 (fr) * 1985-06-21 1987-03-04 Nokia Graetz Gesellschaft mit beschränkter Haftung Dispositif d'affichage
EP0451362A2 (fr) * 1990-04-11 1991-10-16 Mitsubishi Denki Kabushiki Kaisha Panneau de visualisation à plasma et son procédé de fabrication

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3036671A1 (de) * 1980-09-29 1982-05-13 Siemens AG, 1000 Berlin und 8000 München Flacher bildschirm, verfahren zu seiner herstellung und seine verwendung
DE3137653A1 (de) * 1981-09-22 1983-04-07 Siemens AG, 1000 Berlin und 8000 München Gasentladungsanzeigevorrichtung mit leuchtstoffschutzschicht und anodenschutzgitter
US4625148A (en) * 1983-03-28 1986-11-25 Siemens Ag Gas discharge display device with an auxiliary anode control plate
DE3329106A1 (de) * 1983-08-11 1985-02-21 Siemens AG, 1000 Berlin und 8000 München Gasentladungsanzeigevorrichtung mit einer nachbeschleunigungsstrecke
KR920015415A (ko) * 1991-01-30 1992-08-26 시기 모리야 평판형 음극선관
JPH0619551U (ja) * 1992-05-18 1994-03-15 和広 大王 補助持ち手
CN1089483C (zh) * 1994-10-19 2002-08-21 皇家菲利浦电子有限公司 照明单元、无电极低压放电灯,及用于照明单元的放电容器
EP0716438A1 (fr) * 1994-12-06 1996-06-12 International Business Machines Corporation Dispositif d'emission de champ et procédé pour sa fabrication
JPH11501416A (ja) * 1995-12-22 1999-02-02 フィリップス エレクトロニクス ネムローゼ フェンノートシャップ 窓フレームを有する薄型表示装置

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2059427A1 (de) * 1969-12-02 1971-06-09 Rca Corp Optische Einrichtung mit mindestens zwei Fluessigkristallzellen
DE2350712A1 (de) * 1972-11-06 1974-05-09 Burroughs Corp Anzeigetafel mit anoden aus leitfaehigem film
DE2147881B2 (de) * 1970-09-24 1975-11-20 Thomson-Csf, Paris Gasentladungs- Datenanzeige vorrichtung
DE2615721A1 (de) * 1976-04-09 1977-10-13 Siemens Ag Gasentladungsanzeigevorrichtung

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS4889679A (fr) * 1972-02-25 1973-11-22
DE2412869C3 (de) * 1974-03-18 1980-10-30 Siemens Ag, 1000 Berlin Und 8000 Muenchen Anzeigevorrichtung mit einem Gasentladungsraum als Elektronenquelle, mit einem Elektronennachbeschleunigungsraum und mit einem Leuchtschirm und Verfahren zum Betrieb dieser Anzeigevorrichtung
DE2643915C2 (de) * 1976-09-29 1983-10-06 Siemens Ag, 1000 Berlin Und 8000 Muenchen Anzeigevorrichtung
DE2750587A1 (de) * 1977-11-11 1979-05-17 Siemens Ag Gasentladungsanzeigevorrichtung mit abstandselementen
DE2855108A1 (de) * 1978-12-20 1980-06-26 Siemens Ag Abstandshalterung in einer gasentladungsanzeigevorrichtung

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2059427A1 (de) * 1969-12-02 1971-06-09 Rca Corp Optische Einrichtung mit mindestens zwei Fluessigkristallzellen
DE2147881B2 (de) * 1970-09-24 1975-11-20 Thomson-Csf, Paris Gasentladungs- Datenanzeige vorrichtung
DE2350712A1 (de) * 1972-11-06 1974-05-09 Burroughs Corp Anzeigetafel mit anoden aus leitfaehigem film
DE2615721A1 (de) * 1976-04-09 1977-10-13 Siemens Ag Gasentladungsanzeigevorrichtung

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0087140A2 (fr) * 1982-02-23 1983-08-31 Siemens Aktiengesellschaft Méthode pour réduire la luminosité de fond dans la région d'image inférieure d'un panneau d'affichage
EP0087140A3 (fr) * 1982-02-23 1984-05-23 Siemens Aktiengesellschaft Méthode pour réduire la luminosité de fond dans la région d'image inférieure d'un panneau d'affichage
EP0133492A2 (fr) * 1983-08-03 1985-02-27 Siemens Aktiengesellschaft Panneau de décharge à gaz ayant un cadre d'espace
EP0133492A3 (en) * 1983-08-03 1985-04-10 Siemens Aktiengesellschaft Gas discharge display having a spacing frame
EP0212109A2 (fr) * 1985-06-21 1987-03-04 Nokia Graetz Gesellschaft mit beschränkter Haftung Dispositif d'affichage
EP0212109A3 (fr) * 1985-06-21 1988-11-23 Nokia Graetz Gesellschaft mit beschränkter Haftung Dispositif d'affichage
EP0451362A2 (fr) * 1990-04-11 1991-10-16 Mitsubishi Denki Kabushiki Kaisha Panneau de visualisation à plasma et son procédé de fabrication
EP0451362A3 (en) * 1990-04-11 1992-03-18 Mitsubishi Denki Kabushiki Kaisha Plasma display panel and a process for producing the same
US5207607A (en) * 1990-04-11 1993-05-04 Mitsubishi Denki Kabushiki Kaisha Plasma display panel and a process for producing the same

Also Published As

Publication number Publication date
US4362967A (en) 1982-12-07
DE2952528A1 (de) 1981-07-02
EP0031921B1 (fr) 1984-05-09
JPS56102051A (en) 1981-08-15
ATE7435T1 (de) 1984-05-15
DE2952528C2 (de) 1985-10-10

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