DE2136333A1 - Gas discharge or storage panel with control and addressing circuit and method for applying operating potentials to such a panel - Google Patents

Description

PATENT LAWYERS

dr.ing. H. NEGENDANK ■ dipl-ino. H. HAUCK dipi.phys. W. SCHMITZ

HAMBURG-MUNICH O 1 O O O ^ ^

I ι 36333

STATE E LLUNGSANSCHRIFT: HAM BURG 36 · NEW WALL 41

TIiL. 36 74 28 AND 36 41 19

TELEGR. NEGEDAPATENT HAMBURG MUNICH 15 MOZARTSTR. 23

TEI .. .1 38 05 SO

TELEGH. NEGEi) APATENI MUNICH

HAMBURG, _ _

July 20 ft *

Gas discharge or storage panel with expensive " and addressing circuitry and method for applying operational potentials to such a panel.

The invention relates to a gas discharge and storage panel of the type disclosed in U.S. Patent No. 3,499 from 3.3.197ο described embodiment. At the in The gas discharge and storage device described in this patent is a pair of rectangular glass plates connected to each other at a mutual distance and each carry dielectrically coated conductor fields each of a large number of conductors, the row and column conductor fields in the active panel area consist of linear conductors running parallel to the longitudinal direction of the plate. The panels are by means of a

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Distance insulating means connected to each other that their Longitudinal axes aligned transversely to each other and the conductor ends over the point at which the plates are in a mutual Distance are connected to each other until each led out to the plate edges.

The object of the invention is to provide a novel and improved gas discharge or storage panel with a control and Addressing circuit, as well as a method for applying operating potentials to such a panel to create

According to the invention, a gas discharge panel is made up of a pair of identical plates of greater length than width, which are held at a mutual distance from one another transversely to one another by means of a spacing insulating means to form a thin gas chamber, with plates each arranged on these plates, in parallel linear row and column conductor fields extending to the plate longitudinal axes, each conductor being led out in a field at both ends of the respective plate beyond the spacer insulating means, and with a source of electrical operating potential for the row and column conductors, one continuously supply applied periodic holding voltage and pulses serving to influence the discharge state, and with a control and addressing circuit which serves to control individual linear conductors and to apply the pulse potentials to them, characterized according to the invention,

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that the control and addressing circuit each with both ends of each conductor is connected in the two fields.

The 'inventive method for applying operating potentials, in particular for influencing discharge states serving pulse voltages and discharge holding voltages to a gas discharge panel with transverse to each other arranged row and column conductor fields is characterized according to the invention that the operating potentials the row and column conductors are placed in the fields at both ends. According to another feature of the method according to the invention, the application takes place Operating potentials to the conductors at both ends in such a way that the conductor located between the ends has a Forms part of a control and addressing circuit for controlling individual conductors.

According to the invention, the natural geometry of the panel described above is used in conjunction with a special packing arrangement for the diodes and Resistors or other electrical circuit elements in a diode-resistor addressing matrix in a Another patent application by the same applicant with the title "Control and addressing circuit for a Matrix gas discharge panel "described embodiment used. The invention is based on the fact that the ladder

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each have two ends in the row and column conductor field and one end of the conductor can be used for the group selection or control diode, while the other end is brought into electrical contact with the holding voltage bypass diodes as well as with the bit selection or control resistors. On the other hand, the group control diode and the bit control resistor can also be located at one and the same conductor end, while the holding voltage bypass diode is connected to the opposite end of the conductor. When using discrete circuit elements, there are therefore six electrical circuit connections per conductor, with the two aforementioned diodes and one resistor per conductor. In order to reduce the cost of the assemblies, the method can be for the mass production of electrical circuit elements such as in the form of a strip or bar with either common anode or common cathode use, wherein also in head pieces disposed monolithic f see resistors may be used. In this way, a large number of electrical connections can be made, which can be applied by means of conventional connection methods such as, for example, re-flowable soldering or gold-ultrasonic bonding, etc.

The individual features and advantages of the invention are shown below with reference to the drawings Embodiments explained in more detail.

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Fig. 1 shows a basic diode resistor addressing and drive circuitry for a pair of conductors in either a row or a row Column ladder field.

Fig. 2 shows the arrangement of the electrical circuit elements on a panel, with the group control diodes and the bit drive resistors on the left side extension of a panel plate for the column conductors, and the withstand voltage bypass diodes are on the right-hand extension of the panel, while the column drive diodes and the column drive resistors together with the pulse generator circuits on an edge extension of the upper one Plate are arranged and the withstand voltage bypass diodes for the column ladder are located on the extension of the lower plate. Fig. 3 shows an arrangement of the circuit elements similar to Fig. 2, with the exception that the group drive diodes are in this case at one end of the panel line, during the Bit control resistor as well as the bypass diodes for the holding voltages on the other or opposite end of the panel plate edge lengthways for the row and column conductors are arranged.

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Figure h is a perspective view of a board edge extension, on a larger scale, showing the manner in which the dielectric coatings on the conductors are recessed.

FIG. 5 is a cross section taken along line 5-5 of FIG. 4.

6 shows the application of the invention to circuit elements arranged in discrete assemblies

ψ such as assemblies of the types LIDS, HSI and

LSI.

Fig. 7 shows a header and an assembly for a group of diodes with common anodes or cathodes or resistors.

The basic circuit shown in Fig. 1 corresponds to that in the aforementioned further patent application the same applicant circuit shown, the entire control and addressing circuit on the of the holding voltage waveform generated by the holding voltage generator Io floats, which is a rectangular, sine, trapezoidal bait may be any other periodic waveform of an alternating type. As detailed in the above-mentioned further patent application, the withstand voltage generator Io output voltage represents half of the holding voltage required to operate the panel,

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while the remaining half of the voltage is 180 ° out of phase is fed to the other conductors of the opposite field. Thus, it becomes a half of the withstand voltage potential to the row conductors, and the other half of the holding voltage potential with a phase offset of 180 ° applied to the column ladder of the panel. The pulse generator sources B, B ^ and S ^ shown in Fig. 1 consist of the secondary windings of pulse transformers, the pulse voltage sources of low impedance that in U.S. Patent No. 3,513,327 entitled "Pulse generator low impedance" described embodiment can be. However, the pulse sources can also from solid-state pulse generator circuits of the design described in the further patent application Aktz. P 2o 21 3o2.9 or from other solid state or hybrid pulse generator circuits exist.

The control resistor R. of the panel line A is connected in series with the pulse source or the pulse generator B-, while the control resistor R- for the panel line B is connected in series with its pulse generator B ^. The diodes D ^. and Dg- are operated in a pulsating manner by the pulses emitted by the pulse source S ^, ie acted upon in the reverse direction. The diode D _R1 serves as a holding voltage bypass diode (bypass diode) for the panel line B to the holding voltage source Io, as is described in the aforementioned patent application.

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The operation of this circuit is as follows: If the secondary winding of the transformer or the _{pulse source B 1} delivers a pulse while none of the other sources delivers a pulse, the resulting voltage is passed through the resistor R. to the diode Dg. applied, the entire voltage drop taking place across the resistor R ^. If, however, the pulse sources B. and S emit a pulse at the same time, the pulse emitted by the pulse _{source S 1 acts on the diode Dg 1} in the reverse direction, so that the voltage in the panel line A rises above the value of the holding voltage at the time in question by an amount which is equal to that of the lower of the two pulse sources B. and S ₁ , and in a width which corresponds to the coincidence superposition of the pulse sources B. and S _{1, respectively.} In the basic circuit shown in FIG. 1, the diodes consist of a group of diodes with a common anode on a head piece and a group of diodes with a common cathode on a head piece. A resistor and two diodes are also associated with each conductor in the panel. The diodes D _ß1 and D _ß2 are the aforementioned bypass diodes for the holding voltage and lead directly back to the holding voltage source Io. The diode bar shown in FIG. 1 can have any desired length and does not necessarily consist of a binary chain. On the other hand, the resistance inputs have the property that they are each driven by a pulse

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encoder, i.e. B ^ and B "are controlled. There are just as many Resistance pulse generators like diodes in each of one Group selector controlled group. In any case, the number of bit pulse generators is multiplied by the number the group selector equals the total number of conductors on the panel in each row and column conductor field. As can also be seen from FIG. 1, are for generation of pulses of opposite polarity both diodes are polarized in opposite directions and the generated pulses have opposite polarities Polarity.

In Fig. 2, a diode resistor address and control matrix is shown for the row conductors R1, R2, R3, ... RN, which for each conductor on the line circuit board from the resistors R _D. , R _{D o,.} .. R _{n λΤ} exists. In this

KI Κ— ί K— N

Leadership form are all line resistances from a single pulse source R ₃ -. operated with pulses of _s which the pulse source or as B ₂ in FIG. 1 corresponds. From Fig. 3 it can be seen that the row resistances as well as the column resistances in groups _s can be controlled in any order or in a binary scheme as desired. The pulse generators Rqi » ^R q2 * ^ 33 * R ₃₄ , R ₃₅₉ R ₃₆ > R ₃ 7 and R30J, which correspond to the diode pulse generator D ₁ in Fig. 1, are connected to the row conductors Rl, R2, R3, .. * RN by bit diodes DB connected, which are switched according to the representation in a digital logical Üge and scheme (pattern). The line

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the anodes of the bypass diodes and the connections of the connection ends of the row conductors on the left-hand edge extension is part of the control and addressing circuit. In this way, the best possible and economical use of the space available on the panel takes place. A similar scheme is used for the column conductors, with the column holding voltage bypass _{diodes D JC} at the lower edge of the panel extension and connected to the panel ladders, while the upper edge extension of the column conductors in the diagram shown is connected to the diode-resistor matrix is. As also shown in Fig. 2, the holding voltage generators IOC for the column conductors and 1OR for the row conductors, as well as the pulse generators R ₃₀ and R ₃₁ , R ₃₂ , ... R ₃₈ and C ₃₁ ... C ₃₈ directly on the Panel be arranged, wherein the connections to the primary windings of the pulse transformers are not shown. Of course, the secondary windings of the transformers shown here are only used to indicate pulse sources or transmitters and the invention is not limited to pulse transmitters of the transformer type, but also includes solid-state and hybrid pulse sources (transformer and solid-state).

In the embodiment of the invention shown in FIG. 3 has the line circuit board 5o edge extensions 5oL and 5oR and closes an angle of 90 ° with the

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Pulse generator bus line A from the pulse generator R _, and the complementary pulse generator bus line A driven by the pulse generator R ... (In the notation used here, Ä is not excited when A is excited, and when Ä is excited, A is not excited.) The same applies to the other line pulse generators R- - Rq ₁ ,, Rq ₁ - ~ R ₃ - and R- „- Rqg · If the pulse generator R ₃₀ sends a pulse to all series control resistors R _R _2> ··· Rp-M and the corresponding com

combinations of the pulse generators R «., - Rq- shown in the network are excited, becomes a corresponding one Row leader excited too. It should be noted that the potential of the holding voltage generator 1OR is constant is applied to the panel ladder. A corresponding arrangement can be found for the row conductors C1, C2, ... CN. Thus, each specific intersection point in the panel can be given by appropriate impulses by means of the illustrated Control pulse generators (select ").

As already stated above, the holding generators 1OR and 1OG are switched by means of the bypass ^{diodes d} tt3_-j »■ ^ JR-2 * · '* ⁰ JR-N UTOg ⁰¹¹ S ⁶³¹ » ^unc ^ the column conductors also have holding voltage bypass diodes Djn ^, ^ jp-2 * *** ⁰ JC-N ^au ^ »whose purpose and mode of operation is described in detail in the further patent application already mentioned. It should be noted that in the circuit shown in Fig. 2, the panel line between

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Column circuit board 52, which has edge extensions 52U and 52D, the plates being connected to one another by a spacing insulating means or insulating base 54. In this case, the group drive diodes Dgo are located on the edge extension 50R, while the line holding voltage return _{diodes D ßR are located} on the edge extension 50L. The line control resistors R1 are also located on the edge extension 50L. The components can be contained in a head piece assembly. (see Fig. 7) which includes all three types of circuit elements, namely resistors, diodes with common anodes, and diodes with common cathodes. The length of each such header 7o (Fig. 7) is determined by the number of circuit elements ("N" components long) with the electrical contacts consisting of a common header 72 on one side of the header and bonding pads 71 on the other side. The bond pads 71 can be made of either bead, bulb, or spherical solder or gold balls, which solder can be made flowable again to be soldered into electrical contact with the panel after proper alignment. Similarly, the gold balls could also be connected to the panel ladders by ultrasound. The binding pads can be offset from one another so that there are sufficiently large distances between them and a larger one

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There is a tolerance for the mechanical alignment. In addition, the head strip 7o can be used as a carrier for both the bit control resistors as well as the bypass or bypass diodes. In any case, the electrical contact takes place Component or head bar 7o in that this is reversed and by means of one of the methods described above is connected to the panel.

The component strip 7o shown in FIG. 7 can be produced by different production methods, including thick-film, thin-film or monolithic technology, or a combination of these processes. Component strips can be quite large Combine fields, e.g. to a circuit for 32 panel cables, 6M panel cables, 12 8 and even 512 panel lines. In the latter case, in which the bar takes on a very large width, it should be better be to replace the monolithic process with aluminum oxide pads, the aforementioned binding skis sen with the monolithic thick-film or thin-film platelets over the entire other side of the aluminum oxide base are distributed.

As FIG. H shows, the resistors can be formed by means of a hybrid method in that a recess is formed in the dielectric layer 6o, which extends beyond the spacer insulating base 54 for the actual

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borrowed panel extends. In this case, it becomes a recess pattern such as, for example, the recesses 61, 62, 63 ff. formed in the dielectric layer during manufacture, and these recesses are filled with a resistor paste 75 (Fig. 5), whereby the bit control resistor is formed. (Of course, the binding cushions 71 can, if necessary, also pass through these recesses. ) A corresponding series of recesses can be used to accommodate pellet diodes (not shown) "or the like. Diodes may be provided. Then the transverse conductors 76, 77, 78 and 79 are applied, which lead to the lateral Edges of the carrier plates run. Corresponding transverse conductors 8o, 81, ... (Fig. 3) are used for the row drive diodes upset. In a corresponding manner, conductors 85 are applied to the holding current bypass diodes (or formed on a common header for these diodes).

Since a gas discharge panel of the type disclosed in the aforesaid U.S. Patent 3 49 9 16 7 requires both plus and minus pulses and there as well in the circuit shown in Fig. 1 all that is required is that the diodes are reversed and pulses opposite polarity produces itferden, it results thereby an additional cost saving, since only two types of diode component strips are required and must be kept in stock.

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In addition, this technique is also quite simple by means of a solid state wafer carrier of the LID type or by means of a conventional DIP assembly or a standardized flat pack chip package, which a monolithic diode network with thin-film resistors included, serving the same purpose. A component of this type could by means of the above described method can also be directly connected to the panel.

The basic feature of the invention is its use the conductor on a gas discharge panel as part of the control and addressing circuit, both conductor ends be used.

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Claims (9)

Patent claims (l / gas discharge panel made of a pair of identical plates, each larger in length than width, which are held at a mutual distance transversely to one another by means of a spacer insulating means to form a thin gas chamber, with linear linear ones arranged on these plates and running parallel to the plate longitudinal axes Row and column conductor fields, where k each conductor is led out in a field at both ends of the respective plate beyond the spacer insulating means, and each with a source of an electrical operating potential for the row and for the column conductors, which have a continuously applied periodic holding voltage and delivering pulses serving to influence the discharge state, and with a control and addressing circuit which is used to control individual linear conductors and to apply the pulse potentials to them, characterized in that the control and addressing circuit has both ends each of the conductor (Rl, R2, R3, RN; Cl, C2, C3, ... CN) in the two fields. 2. Gas discharge panel according to claim 1, characterized in that the conductors between the spacing insulating means (54) and the gas chamber have a dielectric coating (6o) and the connections with the conductors 1 09887/1910 at least one end through recesses (61, 62, ...) are formed in the dielectric coating (6o) on the conductors. 3. Gas discharge panel according to claim 2, characterized in that the control and addressing circuit for each Linear conductor consists of a resistor-diode circuit and the resistance of each circuit in each case in place and Place is formed in a recess in the dielectric coating. 4. Gas discharge panel according to claim 2, characterized in that that the recesses are arranged in a selected geometric scheme and by means of an outer conductor a selected group of control and addressing circuits Operating potentials can be supplied. 5. Gas discharge panel according to claim 1, characterized in that the control and addressing circuit for each conductor has a resistor-diode circuit and a diode serving to bypass the Ilaltespannungspotentials of the resistor-diode circuit, at least all diodes of the control and Addressing circuit on an edge extension of the plates, and the bypass _{diodes (Dj R} , Djp) are arranged on the edge extension located at the opposite end of the plate. 109 8 87/1910 6. gas discharge panel according to claim 3, characterized in that that the control and addressing circuit is a selected number of resistor-diode circuit groups and having a common carrier for at least the diodes of each selected group, those for bypassing of the holding voltage potential serving diodes at their common electrodes are connected to a common outer conductor. ψ 7. gas discharge panel according to claim 1, characterized in that the driving and addressing a selected number of resistor-diode circuits in groups and a common module for the selected number of resistor-diode circuits with projecting from this bond pad (71) and wherein the electrical connections to the plate conductors each consist of the connection pads. 8. Gas discharge panel according to claim 1, characterized in that the control and addressing circuit is a selected one Number of resistor-diode circuit groups and a common carrier for at least the diodes in each selected group. 9. Method for applying operating potentials, in particular for influencing discharge states Pulse voltages and discharge sustaining voltages on a gas discharge panel with transversely arranged line 109887/1910 and column fields, characterized in that the operating potentials the row and column conductors are placed in the fields at both ends. Io. Method according to claim 9, characterized in that the application of the operating potentials to the conductors at both ends takes place in such a way that the one between the ends Head forms part of a control and addressing circuit for controlling individual conductors. 109887/1910 Blank page