JPH06150834A - Dc type plasma display panel - Google Patents

Abstract

PURPOSE:To provide a linear plasma display panel having a stable resistor for a memory at a highly accurate cell pitch in easily manufacturing work by linearly forming resistors facing to electric discharge electrodes on linear common electric discharge electrode connectors mounted on a substrate, and superposing the electric discharge electrodes on the resistors. CONSTITUTION:A plurality of linear common cathode connectors 2 are juxtaposed on a back plate 1 by silver paste printing or the like. Resistors 4 of ruthenium oxide or the like are disposed in a portion where cathodes 3 are formed by screen printing or the like. The cathode 3 is formed on the resistor 4 by screen-printing with Ni, Al or the like, thus obtaining the back plate 1 provided with the electric discharge cathodes 3 and the resistors 4. Linear anode 6 of an ITO film are disposed on the front plate 5 in a manner perpendicular to the linear common electric discharge electrode connectors 2, and a phosphor is applied to a required portion of the front plate 5. After the peripheral portion of the back plate 1 and the front plate 5 which are laminated to each other is sealed, Penning mixture gas such as He-Xe is sealed in, thus manufacturing a DC type plasma display panel.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a direct current (DC) type plasma display (PDP), and more specifically, it has a resistor for a current limiting memory in each cell and has a high cell pitch and a stable memory. DC with resistance and easy to manufacture
Form PDP.

[0002]

2. Description of the Related Art DC type PDPs include those for observing the emission color of discharge gas and those for causing a fluorescent substance to emit visible light by ultraviolet rays generated by discharge (color PDP).

Although various methods are known for the DC type PDP structure, in order to make it thin, the front plate and the rear plate facing each other are sealed with seal glass to form an airtight container for containing discharge gas. Is often adopted. In addition, low-priced soda-lime glass for windows is usually used for both the front plate and the rear plate.

In such a DC type PDP, higher brightness, higher luminous efficiency, longer life and the like are required. One means for that purpose is to form a current limiting memory resistor (hereinafter abbreviated as a resistor) for each cell. For example, Japanese Patent Laid-Open No. 48-21978 and "" DC
Gas Discharge Storage Di
"Sprays", Frank Walters, p. 1
26-127, 1974 ", it is shown that a resistor is formed in the same plane direction as the discharge electrode forming surface. However, in this method, a pixel is formed by the area of the resistor occupying the plane direction. There was a restriction on the arrangement pitch of the discharge electrodes used, and a DC PDP with a high definition cell pitch could not be obtained.

On the other hand, forming a resistor in the thickness direction of the discharge electrode is described in Japanese Utility Model Application Laid-Open No. 55-114954. However, this method has a problem that it is difficult to manufacture the resistor because the resistor is formed in the thickness direction in the substrate. Moreover, since the resistor is formed in the substrate, the film thickness of the resistor becomes non-uniform depending on the method of forming the resistor, which causes variations in memory resistance, which lacks stability of the memory resistor. Was there.

[0006]

SUMMARY OF THE INVENTION The present invention has been made to solve these problems of the prior art, and is a DC type PDP which has a cell pitch of high definition and has stable memory resistance and is easy to manufacture. The purpose is to provide.

[0007]

The above object of the present invention is to provide an independent resistor corresponding to each discharge electrode on a line-shaped common discharge electrode connector on a substrate, and to provide each resistor on each resistor. This is accomplished by forming a discharge electrode.

That is, the DC type PDP of the present invention has a plurality of discharge electrodes formed on a substrate and a counter electrode facing the discharge electrodes through a discharge space, and a resistor is provided on a line on the substrate. The common discharge electrode connector is independently provided so as to correspond to each of the discharge electrodes, and the discharge electrode is formed on the resistor.

The present invention will be described below in detail with reference to the drawings. FIG. 1 is a perspective view showing an example of the outline of a DC PDP of the present invention. In FIG. 1, 1 is a back plate, 2 is a line-shaped common discharge electrode (cathode) connector, 3 is a discharge electrode (cathode), Reference numeral 4 is a resistor, 5 is a front plate, and 6 is a counter electrode (anode).

In the DC type PDP of FIG. 1, the discharge electrode 3 is the cathode and the anode is the counter electrode 6, but the anode may be the discharge electrode and the cathode may be the counter electrode. Also, the front plate 5
Glass is preferably used for the back plate 1 and soda lime glass for windows is particularly preferably used in terms of price and the like.

As shown in FIG. 1, on the back plate 1,
A plurality of line-shaped common cathode connectors 2 are provided in parallel. Such a line-shaped common cathode connector is provided by printing silver paste or the like.

A resistor 4 is provided in a portion of the line-shaped common cathode connector 2 where the cathode 3 is formed. As the resistor material, ruthenium oxide, tin oxide, zinc oxide, tungsten oxide, nickel oxide or the like can be used. Further, this resistor can be uniformly formed in a desired thickness by screen printing.

The cathode 3 is formed on each of the resistors 4 described above. Therefore, an independent resistor is provided for each discharge electrode (cathode). This cathode is also formed by screen printing. Further, nickel, aluminum or the like can be used as the cathode material.

Further, it is desirable that the line-shaped common cathode connector exposed in the discharge space is covered with an insulating glass (not shown) or the like. Further, although cell walls (not shown) that form cell spaces are provided on the back plate, the cell walls may be provided on the front plate. In this way the cathode,
A back plate on which resistors and the like are formed can be obtained.

On the other hand, the front plate 5 is provided with a linear anode 6 formed of an ITO film or the like. The line-shaped anode is orthogonal to the line-shaped common cathode connector through the cell space. Also, in the required part of this front plate,
A phosphor is applied to excite and emit visible light.

The back plate and the front plate thus obtained are superposed on each other, and the periphery is sealed with a glass frit. After that, a predetermined Penning mixed gas such as He-Xe or Ne-Xe system is sealed, and a DC PDP is manufactured.

[0017]

EXAMPLES The present invention will be specifically described below based on Examples and the like.

[0018] The examples window soda lime made of a glass rear glass plate on a linear common electrode connector to the thick film silver paste, after forming a plurality of parallel in-line pitch 0.3 mm, 585 ° C.
Was fired at. Next, an insulating layer having a through hole for forming a resistor and a cathode is provided by printing, and then 585 ° C.
It was baked in. A low-melting glass paste was used for this insulating layer.

Subsequently, a ruthenium oxide-based paste was screen-printed on the through-hole portion of the insulating layer to provide a resistor, and then the paste was baked at 585.degree. Ni on top of this resistor
After screen-printing the paste again as a cathode, 58
It was baked at 5 ° C. Finally, a cell partition was formed by printing with a low melting point glass paste and heated to 585 ° C.

Thus, a back glass plate having a cathode, a resistor and the like formed thereon was obtained. A partially cutaway plan view of the cathode and resistor portions is shown in FIG. 2, and a sectional view of the XX 'portion is shown in FIG. 2 to 3, the same reference numerals as those in FIG. 1 indicate the same components, 7 indicates a cell partition wall, and 8 indicates an insulating layer.

On the other hand, a plurality of linear anodes made of ITO were formed in parallel at a line pitch of 0.3 mm on a front glass plate made of soda lime glass for windows. Next, the phosphor was applied to a predetermined portion of the front glass plate to obtain a front glass plate provided with an anode and a phosphor layer.

The rear glass plate and the front glass plate are overlapped with each other, and the periphery is sealed with a glass frit, and He-Xe
A Penning mixed gas consisting of (2%) was enclosed and the chip was turned off to produce a DC type PDP.

The cell pitch of the DC type PDP thus obtained was 0.3 mm × 0.3 mm, and high definition was realized.

Comparative Example As shown in FIG. 4, a DC PDP was manufactured in substantially the same manner as in Example except that the resistor was provided in the same plane direction as the surface where the cathode serving as the discharge electrode was formed. Note that, in FIG. 4, the same reference numerals as those in FIG. 1 denote the same components.

In the DC type PDP thus obtained, it is difficult to achieve high definition, and the cell pitch is 0.65 mm ×
It was 0.65 mm.

[0026]

The present invention as described above has the following effects.

Since the resistor is provided below the discharge electrodes, there is no restriction on the arrangement pitch of the discharge electrodes, so that the cell pitch can be made finer.

Since the resistor can be formed to have a uniform thickness by screen printing, there is no variation in the resistance value due to the uneven thickness of the resistor, so that the memory has a stable memory resistance.

Since it can be produced by screen printing or the like without requiring any special means, it is easy to produce and inexpensive.

[Brief description of drawings]

FIG. 1 is a perspective view showing an example of a DC PDP of the present invention.

FIG. 2 is a partially cutaway plan view of a cathode and a resistor portion of a DC type PDP manufactured in an example.

3 is a cross-sectional view of a portion X-X 'in FIG.

FIG. 4 is a plan view of a cathode and a resistor portion of a DC type PDP manufactured in a comparative example.

[Explanation of symbols]

1: Back plate, 2: Common line discharge electrode (cathode) connector, 3: Discharge electrode (cathode), 4: Resistor, 5: Front plate, 6: Counter electrode (anode), 7: Cell partition wall, 8: Insulation layer.

 ─────────────────────────────────────────────────── ─── Continuation of the front page (72) Inventor Hiroshi Yamada 1-3-1, Noritake Shinmachi, Nishi-ku, Nagoya, Aichi Prefecture, No. 36 Noritake Company Limited Limited (72) Fumitaka Kato 3-chome, Noritake Shincho, Nishi-ku, Nagoya, Aichi Prefecture No. 36 Noritake Company Limited (72) Inventor Yasuyuki Kani No. 36 Noritake Shincho 3-chome, Noritake Shincho, Nishi-ku, Nagoya, Aichi Prefecture No. 36 Noritake Company Limited

Claims (2)

[Claims] 1. A line-shaped common discharge electrode on a substrate, having a plurality of discharge electrodes formed on a substrate and a counter electrode facing the discharge electrodes through a discharge space, and a current limiting memory resistor. A direct current type plasma display panel, characterized in that the discharge electrodes are independently provided on the connector so as to correspond to the respective discharge electrodes, and the discharge electrodes are formed on the resistor. 2. The DC type plasma display panel according to claim 1, wherein the resistor and the discharge electrode are formed by screen printing.