EP0031524A1 - Gas discharge display device with control grid support in the post-acceleration space - Google Patents

Gas discharge display device with control grid support in the post-acceleration space Download PDF

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Publication number
EP0031524A1
EP0031524A1 EP80107829A EP80107829A EP0031524A1 EP 0031524 A1 EP0031524 A1 EP 0031524A1 EP 80107829 A EP80107829 A EP 80107829A EP 80107829 A EP80107829 A EP 80107829A EP 0031524 A1 EP0031524 A1 EP 0031524A1
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EP
European Patent Office
Prior art keywords
space
gas discharge
plate
control
display device
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
EP80107829A
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German (de)
French (fr)
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EP0031524B1 (en
Inventor
Manfred Dr.Phil. Dipl.-Phys. Kobale
Burkhard Dipl.-Phys. Littwin
Hans Peter Dr.Rer.Nat. Dipl.-Phys. Lorenz
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Siemens AG
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Siemens AG
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Filing date
Publication date
Application filed by Siemens AG filed Critical Siemens AG
Priority to AT80107829T priority Critical patent/ATE3227T1/en
Publication of EP0031524A1 publication Critical patent/EP0031524A1/en
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Publication of EP0031524B1 publication Critical patent/EP0031524B1/en
Expired legal-status Critical Current

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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
    • H01J17/498—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 other side as a column conductor carries a matrix-forming and separately controllable electrode tracks and, together with these tracks, has through-going control holes in the intersection points of the matrix, and the one on the front plate side is provided with an anode layer, which limits the post-acceleration space, and on the rear plate side one or more against each other insulated cathodes delimiting the gas discharge space.
  • a gas discharge display device constructed in this way and provided with a surface cathode is known from DE-OS 24 12 869.
  • the spacing between the control disc and the luminescent screen is a difficult problem because this distance must be maintained with high accuracy over the entire screen area.
  • 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 object of the present invention is to increase the mechanical stability in the control disc area in a gas discharge display device, to achieve improved high-voltage strength in the post-acceleration space and to avoid mechanical damage to the phosphor screen by spacers.
  • a gas Discharge display device of the type mentioned initially proposed according to the invention that the control disc on the side facing the post-acceleration space is supported by a support plate which has a hole pattern that corresponds to the pattern of the control holes in the control disc, and that the support plate on the side facing the fluorescent screen electrically is conductive and on the side facing the control disc is electrically non-conductive at least in the areas adjacent to the column conductors.
  • the support plate is preferably a photo-shaped glass plate and has a thickness of approximately 1 mm.
  • the support plate on the side facing the fluorescent screen has a metallization which extends wholly or partially into the hole pattern / and between the glass plate and the fluorescent screen an intermediate space of approximately 1 mm thick is formed without supports.
  • a gas discharge display device has the advantage that the mechanical strength of an approximately 1 mm thick support plate is sufficient to also build screens of larger dimensions (for example with a diagonal of 40 cm). The distance between the support plate and the "fluorescent screen can thus be maintained very precisely over the entire image area.
  • the high-voltage strength of the post-acceleration space is increased and mechanical damage to the fluorescent screen is avoided
  • Be Acceleration voltage is applied between the fluorescent screen and support plate, which is metallized on one side. It is also of advantage that the high-voltage hardening of the acceleration section essentially stresses the metallization of the support plate, while the sensitive control lines of the control plate are not impaired. Furthermore, damage to the fluorescent screen by the self-supporting support plate, which does not rest on the fluorescent screen, is completely ruled out.
  • the figure shows schematically in section a gas discharge display device according to the invention. Parts that are not essential to the invention are omitted from the drawing.
  • the gas discharge display device shown in the figure consists essentially of a cathode 8 and a control disc 5, which delimit the gas discharge space (plasma space), and a fluorescent screen (screen) 1, which delimits the post-acceleration space with the control disc 5.
  • the control disc 5 is supported on the side facing the post-acceleration space by a support plate 4, preferably a photo-shaped glass plate, which has a hole pattern, not shown, which corresponds to the pattern of the control holes, not shown, in the control disc 5.
  • the support plate 4 faces the luminescent screen 1
  • On the side of a metallization 3 on and between the fluorescent screen 1 and the metallized support plate 4, a space free of supports (post-acceleration space) is formed.
  • the spacing frame 2 surrounds the post-acceleration space and the frame 6 the gas discharge space (plasma space).
  • Suitable connecting means for example glass soldering, are provided for the gas-tight connection of spacer frame 2, with luminescent screen 1 and support plate 4 and of frame 6 with control disk 5 and cathode 8.
  • the respective connecting seams are provided with the reference number 7.

Landscapes

  • Gas-Filled Discharge Tubes (AREA)
  • Cathode-Ray Tubes And Fluorescent Screens For Display (AREA)

Abstract

1. A gas discharge display device comprising a gasfilled space which is closed in gas-tight manner on one side by means of a front plate and on the opposite side by means of a back plate, and which is divided into a gas discharge space and a postacceleration space by a control plate (5) which on its sides carries separately controllable electrode paths, those on one side forming row conductors and those on the other side forming column conductors of a matrix, said control plate, together with these paths, having continuous control holes at the intersection points of the matrix and said control plate facing, on the front plate side, a luminescent screen (1), which is provided with an anode layer and delimits the post-acceleration space, and, on the back plate side, facing one or more mutually insulated cathodes (8), which delimit the gas discharge space, characterized in that at its side facing the postacceleration space, the control plate (5) is supported by a supporting plate (4) which is spaced from the luminescent screen (1) and has a grid arrangement of holes which corresponds to the grid arrangement of the control holes in the control plate (5) ; and that at its side facing the luminescent screen (1), the supporting plate (4) is electrically conductive, and at its side facing the control plate (5), at least in the regions adjoining the column conductors, the supporting plate is electrically non-conductive.

Description

Die Erfindung betrifft eine Gasentladungsanzeigevorrichtung mit einem gasgefüllten Raum, der auf einer Seite durch eine Frontplatte und auf der gegenüberliegenden Seite durch eine Rückplatte gasdicht abgeschlossen und durch eine Steuerscheibe in einen Gasentladungsraum und einen Nachbeschleunigungsraum unterteilt ist, die auf ihrer einen Seite als Zeilenleiter und auf ihrer anderen Seite als Spaltenleiter eine Matrix bildende und jeweils getrennt ansteuerbare Elektrodenbahnen trägt und zusammen mit diesen Bahnen in den Kreuzungspunkten der Matrix durchgehende Steuerlöcher hat, und der auf der Frontplattenseite ein mit einer Anodenschicht versehener, den Nachbeschleunigungsraum begrenzender Leuchtschirm und auf der Rückplattenseite eine oder mehrere gegeneinander isolierte, den Gasentladungsraum begrenzende Kathoden gegenüberliegen.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 other side as a column conductor carries a matrix-forming and separately controllable electrode tracks and, together with these tracks, has through-going control holes in the intersection points of the matrix, and the one on the front plate side is provided with an anode layer, which limits the post-acceleration space, and on the rear plate side one or more against each other insulated cathodes delimiting the gas discharge space.

Eine derartig aufgebaute, mit einer Flächenkathode versehene Gasentladungsanzeigevorrichtung (Plasma-Panel) ist aus der DE-OS 24 12 869 bekannt. In dieser Ausführung eines sogenannten flachen Bildschirmes stellt die Abstandshalterung zwischen der Steuerscheibe und dem Leuchtschirm ein schwieriges Problem dar, weil dieser Abstand über die gesamte Bildschirmfläche mit hoher Genauigkeit eingehalten werden muß.A gas discharge display device (plasma panel) constructed in this way and provided with a surface cathode is known from DE-OS 24 12 869. In this version of a so-called flat screen, the spacing between the control disc and the luminescent screen is a difficult problem because this distance must be maintained with high accuracy over the entire screen area.

Aus der DE-OS 27 50 587 ist es bekannt, durch das Ausfüllen des Nachbeschleunigungsraumes zwischen Leuchtschirm und Steuerscheibe mit einem Stapel von dünnen Glasfolien, die durch einen Ätzvorgang mit Löchern versehen sind, einen stabilen Steuerscheibenaufbau zu erzielen.From DE-OS 27 50 587 it is known to achieve a stable control disc structure by filling the post-acceleration space between the fluorescent screen and the control disc with a stack of thin glass foils which are provided with holes by an etching process.

Für eine Abstandshalterung in einer Gasentladungsanzeigevorrichtung ist auch schon vorgeschlagen worden, zwischen Steuerscheibe (Steuerlochplatte) und Leuchtschirm mehrere aufeinandergestapelte gelochte Glasfolien anzuordnen, die auf ihren Oberflächen Metallschichten tragen. Die Metallschichten führen schwimmende Potentiale und homogenisieren dadurch das Beschleunigungsfeld (Patentanmeldung P 28 55 108.8).For a spacer in a gas discharge display device, it has also already been proposed to arrange several stacked perforated glass foils between the control disc (control perforated plate) and the 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).

Der vorliegenden Erfindung liegt die Aufgabe zugrunde, bei einer Gasentladungsanzeigevorrichtung die mechanische Stabilität im Steuerscheibenbereich zu erhöhen, eine verbesserte Hochspannungsfestigkeit im Nachbeschleunigungsraum zu erzielen und mechanische Beschädigungen des-Leuchtschirmes durch Abstandshalter zu vermeiden. Zur Lösung dieser Aufgabe wird bei einer Gasentladungsanzeigevorrichtung der eingangs genannten Art erfindungsgemäß vorgeschlagen, daß die Steuerscheibe auf der dem Nachbeschleunigungsraum zugewandten Seite durch eine Stützplatte abgestützt ist, die ein Lochraster aufweist, das mit dem Raster der Steuerlöcher in der Steuerscheibe übereinstimmt, und daß die Stützplatte auf der dem Leuchtschirm zugewandten Seite elektrisch leitend und auf der der Steuerscheibe zugewandten Seite zumindest in den an die Spaltenleiter angrenzenden Bereichen elektrisch nichtleitend ist.The object of the present invention is to increase the mechanical stability in the control disc area in a gas discharge display device, to achieve improved high-voltage strength in the post-acceleration space and to avoid mechanical damage to the phosphor screen by spacers. To solve this problem with a gas Discharge display device of the type mentioned initially proposed according to the invention that the control disc on the side facing the post-acceleration space is supported by a support plate which has a hole pattern that corresponds to the pattern of the control holes in the control disc, and that the support plate on the side facing the fluorescent screen electrically is conductive and on the side facing the control disc is electrically non-conductive at least in the areas adjacent to the column conductors.

Die Stützplatte ist dabei vorzugsweise eine Fotoformglasplatte und weist eine Dicke von ungefähr 1 mm auf.The support plate is preferably a photo-shaped glass plate and has a thickness of approximately 1 mm.

Gemäß einer vorteilhaften Weiterbildung der Erfindung weist die Stützplatte auf der dem Leuchtschirm zugewandten Seite eine Metallisierung auf, die ganz oder teilweise in das Lochraster hineinreicht/und zwischen Glasplatte und Leuchtschirm ist ein von Stützen freier Zwischenraum von ungefähr 1 mm Dicke gebildet.According to an advantageous development of the invention, the support plate on the side facing the fluorescent screen has a metallization which extends wholly or partially into the hole pattern / and between the glass plate and the fluorescent screen an intermediate space of approximately 1 mm thick is formed without supports.

Eine erfindnagsgemäße Gasentladungsanzeigevorrichtung hat den Vorteil, daß die mechanische Festigkeit einer ungefähr 1 mm dicken Stützplatte ausreicht, um auch Bildschirme größerer Abmessungen (z.B. mit einer Diagonale von 40 cm) aufzubauen. Der Abstand der Stützplatte zum" Leuchtschirm kann damit sehr genau auf der ganzen Bildfläche eingehalten werden. Durch das Einfügen eines von Stützen freien Zwischenraumes von ungefähr 1 mm zwischen Stützplatte und Leuchtschirm wird die Hochspannungsfestigkeit des Nachbeschleunigungsraumes erhöht und es werden mechanische Beschädigungen des Leuchtschirmes vermieden. Die Beschleunigungsspannung wird zwischen Leuchtschirm und -Stützplatte, die einseitig metallisiert ist, angelegt. Es ist dabei weiterhin von Vorteil, daß bei der Hochspannungshärtung der Beschleuni gungsstrecke im wesentlichen die Metallisierung der Stützplatte beansprucht wird, während die empfindlichen Steuerleitungen der Steuerplatte nicht beeinträchtigt werden. Ferner ist eine Beschädigung des Leuchtschirmes durch die freitragende Stützplatte, die auf dem Leuchtschirm nicht aufliegt, gänzlich ausgeschlossen.A gas discharge display device according to the invention has the advantage that the mechanical strength of an approximately 1 mm thick support plate is sufficient to also build screens of larger dimensions (for example with a diagonal of 40 cm). The distance between the support plate and the "fluorescent screen can thus be maintained very precisely over the entire image area. By inserting a space of approximately 1 mm free of supports between the support plate and the fluorescent screen, the high-voltage strength of the post-acceleration space is increased and mechanical damage to the fluorescent screen is avoided Be Acceleration voltage is applied between the fluorescent screen and support plate, which is metallized on one side. It is also of advantage that the high-voltage hardening of the acceleration section essentially stresses the metallization of the support plate, while the sensitive control lines of the control plate are not impaired. Furthermore, damage to the fluorescent screen by the self-supporting support plate, which does not rest on the fluorescent screen, is completely ruled out.

An Hand eines in der Figur der Zeichnung dargestellten Ausführungsbeispiels soll die Erfindung näher erläutert werden.On the basis of an embodiment shown in the figure of the drawing, the invention will be explained in more detail.

Die Figur zeigt schematisch im Schnitt eine erfindungsgemäße Gasentladungsanzeigevorrichtung. Für die Erfindung unwesentliche Teile sind in der Zeichnung weggelassen.The figure shows schematically in section a gas discharge display device according to the invention. Parts that are not essential to the invention are omitted from the drawing.

Die*in der Figur dargestellte Gasentladungsanzeigevorrichtung besteht im wesentlichen aus einer Kathode 8 und einer Steuerscheibe 5, die den Gasentladungsraum (Plasmaraum) begrenzen, sowie aus einem Leuchtschirm (Bildschirm) 1, der mit der Steuerscheibe 5 den Nachbeschleunigungsraum begrenzt. Die Steuerscheibe 5 ist auf der dem Nachbeschleunigungsraum zugewandten Seite durch eine Stützplatte 4, vorzugsweise eine Fotoformglasplatte, abgestützt, die ein nicht dargestelltes Lochraster aufweist, das mit dem nicht dargestellten Raster der Steuerlöcher in der Steuerscheibe 5 übereinstimmt. Die Stützplatte 4 weist auf der dem Leuchtschirm 1 zugewandten Seite eine Metallisierung 3 auf und zwischen Leuchtschirm 1 und metallisierter Stützplatte 4 ist ein von Stützen freier Raum (Nachbeschleunigungsraum) gebildet. Der Abstandsrahmen 2 umgibt den Nachbeschleunigungsraum und der Rahmen 6 den Gasentladungsraum (Plasmaraum). Für die gasdichte Verbindung von Abstandsrahmen 2, mit Leuchtschirm 1 und Stützplatte 4 sowie von Rahmen 6 mit Steuerscheibe 5 und Kathode 8 sind geeignete Verbindungsmittel, beispielsweise Glaslöt, vorgesehen. Die jeweiligen Verbindungsnähte sind mit dem Bezugszeichen 7 versehen.The gas discharge display device shown in the figure consists essentially of a cathode 8 and a control disc 5, which delimit the gas discharge space (plasma space), and a fluorescent screen (screen) 1, which delimits the post-acceleration space with the control disc 5. The control disc 5 is supported on the side facing the post-acceleration space by a support plate 4, preferably a photo-shaped glass plate, which has a hole pattern, not shown, which corresponds to the pattern of the control holes, not shown, in the control disc 5. The support plate 4 faces the luminescent screen 1 On the side of a metallization 3 on and between the fluorescent screen 1 and the metallized support plate 4, a space free of supports (post-acceleration space) is formed. The spacing frame 2 surrounds the post-acceleration space and the frame 6 the gas discharge space (plasma space). Suitable connecting means, for example glass soldering, are provided for the gas-tight connection of spacer frame 2, with luminescent screen 1 and support plate 4 and of frame 6 with control disk 5 and cathode 8. The respective connecting seams are provided with the reference number 7.

Claims (4)

1. Gasentladungsanzeigevorrichtung mit einem gasgefüllten Raum, der auf einer Seite durch eine Frontplatte und auf der gegenüberliegenden Seite durch eine Rückplatte gasdicht abgeschlossen und durch eine Steuerscheibe in einen Gasentladungsraum und einen Nachbeschleunigungsraum unterteilt ist, die auf ihrer einen Seite als Zeilenleiter und auf ihrer anderen Seite als Spaltenleiter eine Matrix bildende und jeweils getrennt ansteuerbare Elektrodenbahnen trägt und zusammen mit diesen Bahnen in den Kreuzungspunkten der Matrix durchgehende Steuerlöcher hat, und der auf der Frontplattenseite ein mit einer Anodenschicht versehener, den Nachbeschleunigungsraum begrenzender Leuchtschirm und auf der Rückplattenseite eine oder mehrere gegeneinander isolierte, den Gasentladungsraum begrenzende Kathoden gegenüberliegen, dadurch gekennzeichnet, daß die Steuerscheibe (5) auf der dem Nachbeschleunigungsraum zugewandten Seite durch eine Stützplatte (4) abgestützt ist, die ein Lochraster aufweist, das mit dem Raster der Steuerlöcher in der Steuerscheibe (5) übereinstimmt, und daß die Stützplatte (4) auf der dem Leuchtschirm (1) zugewandten Seite elektrisch leitend und auf der der Steuerscheibe (5) zugewandten Seite zumindest in den an die Spaltenleiter angrenzenden Bereichen elektrisch nichtleitend ist.1. 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 the other side as the column conductor carries a matrix path that can be controlled separately and has, together with these paths, continuous control holes in the intersection points of the matrix, and that on the front plate side has a luminescent screen provided with an anode layer and delimits the post-acceleration space, and on the back plate side one or more insulated against each other, opposite the gas discharge space are cathodes, characterized in that the control disc (5) is supported on the side facing the post-acceleration space by a support plate (4) which has a hole pattern which m it corresponds to the grid of the control holes in the control disc (5), and that the support plate (4) on the side facing the fluorescent screen (1) is electrically conductive and on the side facing the control disc (5) is electrically conductive at least in the areas adjacent to the column conductors is not conductive. 2. Gasentladungsanzeigevorrichtung nach Anspruch 1, dadurch gekennzeichnet, daB die Stützplatte (4) eine Fotoformglasplatte ist.2. Gas discharge display device according to claim 1, characterized in that the support plate (4) is a photo-shaped glass plate. 3. Gasentladungsanzeigevorrichtung nach Anspruch 1 oder 2, dadurch gekennzeichnet, daß die Stützplatte (4) eine Dicke von ungefähr 1 mm aufweist.3. Gas discharge display device according to claim 1 or 2, characterized in that the support plate (4) has a thickness of approximately 1 mm. 4. Gasentladungsanzeigevorrichtung nach einem der Ansprüche 1 bis 3, dadurch gekennzeichnet, daß die Stützplatte (4) auf der dem Leuchtschirm (1) zugewandten Seite eine Metallisierung (3) aufweist, die ganz oder teilweise in das Lochraster hineinreicht, und daß zwischen Stützplatte (4) und Leuchtschirm (1) ein von Stützen freier Zwischenraum von ungefähr 1 mm Dicke gebildet ist.4. Gas discharge display device according to one of claims 1 to 3, characterized in that the support plate (4) on the fluorescent screen (1) facing side has a metallization (3) which extends fully or partially into the hole pattern, and that between the support plate ( 4) and luminescent screen (1) a space free of supports of approximately 1 mm thickness is formed.
EP80107829A 1979-12-28 1980-12-11 Gas discharge display device with control grid support in the post-acceleration space Expired EP0031524B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT80107829T ATE3227T1 (en) 1979-12-28 1980-12-11 GAS DISCHARGE INDICATOR WITH POST-ACCELERATION ROOM SIDE SUPPORT OF THE CONTROL DISC.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE2952601A DE2952601C2 (en) 1979-12-28 1979-12-28 Gas discharge indicator
DE2952601 1979-12-28

Publications (2)

Publication Number Publication Date
EP0031524A1 true EP0031524A1 (en) 1981-07-08
EP0031524B1 EP0031524B1 (en) 1983-05-04

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EP80107829A Expired EP0031524B1 (en) 1979-12-28 1980-12-11 Gas discharge display device with control grid support in the post-acceleration space

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EP (1) EP0031524B1 (en)
JP (1) JPS56102050A (en)
AT (1) ATE3227T1 (en)
DE (1) DE2952601C2 (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0087819A2 (en) * 1982-03-03 1983-09-07 Siemens Aktiengesellschaft Gas discharge display device
EP0090197A2 (en) * 1982-03-29 1983-10-05 Siemens Aktiengesellschaft Gas discharge display panel
EP0189858A2 (en) * 1985-01-31 1986-08-06 Siemens Aktiengesellschaft Control unit and its manufacturing process, particularly for display devices

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3911346A1 (en) * 1989-04-07 1990-10-11 Nokia Unterhaltungselektronik Control system for flat picture-reproducing devices

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1389191A (en) * 1972-03-24 1975-04-03 Sperry Rand Corp Electrode structures
DE2855108A1 (en) * 1978-12-20 1980-06-26 Siemens Ag SPACER IN A GAS DISCHARGE DISPLAY DEVICE

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1389191A (en) * 1972-03-24 1975-04-03 Sperry Rand Corp Electrode structures
DE2855108A1 (en) * 1978-12-20 1980-06-26 Siemens Ag SPACER IN A GAS DISCHARGE DISPLAY DEVICE

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0087819A2 (en) * 1982-03-03 1983-09-07 Siemens Aktiengesellschaft Gas discharge display device
EP0087819A3 (en) * 1982-03-03 1984-06-06 Siemens Aktiengesellschaft Gas discharge display device
EP0090197A2 (en) * 1982-03-29 1983-10-05 Siemens Aktiengesellschaft Gas discharge display panel
EP0090197A3 (en) * 1982-03-29 1984-05-30 Siemens Aktiengesellschaft Gas discharge display panel
EP0189858A2 (en) * 1985-01-31 1986-08-06 Siemens Aktiengesellschaft Control unit and its manufacturing process, particularly for display devices
EP0189858A3 (en) * 1985-01-31 1986-10-29 Siemens Aktiengesellschaft Control unit and its manufacturing process, particularly for display devices

Also Published As

Publication number Publication date
ATE3227T1 (en) 1983-05-15
JPS56102050A (en) 1981-08-15
EP0031524B1 (en) 1983-05-04
DE2952601A1 (en) 1981-07-02
DE2952601C2 (en) 1982-09-02

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