JP2962858B2 - Gas discharge display - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a structure capable of minimizing characteristic deterioration of a gas discharge display device.

[0002]

2. Description of the Related Art FIG. 2 is a perspective view of a main part showing the inside of a conventional gas discharge display device.

As shown in FIG. 1, a conventional gas discharge display device includes a base glass 21 and a window glass 22 which are arranged opposite to each other at a predetermined interval. Has an airtight space filled with a rare gas. On the base glass 21, a trigger electrode 23, a dielectric layer 24, a protective film 25, and a cathode electrode 26 are laminated in order from the bottom. Here, a plurality of cathode electrodes 26 are arranged in parallel with each other.

Further, on the window glass 22, a plurality of anode electrodes 27 extending in a direction intersecting the cathode electrode 26 and arranged so as to face the cathode electrode 22, and the anode electrode 27 and the cathode electrode 26 And a light-shielding mask 28 formed in a lattice shape such that the intersection of the openings is opened. Further, a partition 29 is formed on the light-shielding mask 28, and a phosphor layer 30 is provided on the anode 27.

At the time of display, the cathode electrode 2
Ultraviolet rays are generated by a DC discharge between the anode 6 and the anode electrode 27, and visible light from the phosphor 30 excited by receiving the ultraviolet rays is emitted to the outside through the window glass 22. The trigger electrode 23 generates an AC discharge between the trigger electrode 23 and the anode electrode 27 in order to generate a DC discharge between the cathode electrode 26 and the anode electrode 27.

[0006]

However, in the above-mentioned conventional example, since the anode electrode 27 is covered by the fluorescent material 30 which is an insulator, the cathode electrode 26 is not covered.
DC discharge between the electrode and the anode electrode 27 is less likely to occur,
There was a problem that the discharge voltage had to be increased.

Accordingly, the present invention has been made to solve the above-mentioned problems, and an object of the present invention is to provide a gas discharge display device that operates at a low discharge voltage.

[0008]

A gas discharge display device according to the present invention comprises a first substrate, a plurality of first electrodes formed on the first substrate, and a predetermined distance from the first substrate. A second substrate and a plurality of transparent electrodes, each of which is a transparent electrode, extends on the second substrate in a direction intersecting the first electrode, and is disposed so as to face the first electrode. A gas discharge display device having a second electrode and a phosphor layer formed on the second electrode and emitting light between intersections of the first electrode and the second electrode, wherein the second electrode It has an auxiliary electrode that is elongated in the same direction as the above, overlaps the end of the second electrode, is electrically connected to the second electrode, and further has a top exposed on the phosphor layer. And

[0009]

In the present invention, since the auxiliary electrode whose top is exposed above the phosphor layer is provided, the discharge is not hindered by the phosphor.

Further, since the auxiliary electrode is formed to be elongated and only slightly overlaps the end of the transparent second electrode which is the opening of the discharge cell, the opening of the discharge cell is greatly narrowed by the auxiliary electrode. It will not be done.

[0011]

FIG. 1 is a perspective view showing the inside of an embodiment of a gas discharge display device according to the present invention.

As shown in FIG. 1, a gas discharge display device according to the present embodiment includes a base glass 1 as a first substrate and a window glass 2 as a second substrate which are opposed to each other at a predetermined interval. Is provided.

Further, on the base glass 1 of this embodiment,
The trigger electrode 3, the dielectric layer 4, the protective film 5, and the cathode electrode 6 as the first electrode are formed by thick film printing so as to be laminated in order from the bottom. Here, a plurality of cathode electrodes 6 are arranged in parallel with each other.

Further, an anode electrode 7 is formed on the window glass 2 of the present embodiment as a second electrode extending in a direction intersecting the cathode electrode 6 and disposed so as to face the cathode electrode 2. . This anode electrode 7
Is a transparent electrode, and a plurality of transparent electrodes are formed in parallel with each other by vapor deposition or the like.

On the window glass 2 of the present embodiment, a light-shielding mask 8 formed in a lattice pattern so as to open an intersection (discharge cell) between the anode electrode 7 and the cathode electrode 6 is formed by thick film printing. Is formed.

Further, a partition 9 is provided on the light shielding mask 8.
Is formed by thick-film printing, and the phosphor layer 10 is formed on the anode electrode 7 by thick-film printing.

The base glass 1 and the window glass 2
An airtight space filled with a rare gas is formed therebetween.

In the present embodiment, in addition to the above-described structure, the electrode is elongated in the same direction as the anode electrode 7, overlaps the end of the anode electrode 7, is electrically connected to the anode electrode 7, and further has a top portion formed of a phosphor. An auxiliary electrode 11 exposed on the layer 10 is provided. Here, FIG. 3 is a schematic plan view showing a case where the window glass 2 is viewed from above in FIG. 1, and shows the position of the auxiliary electrode 11.
The auxiliary electrode 11 is formed by printing a thick film of Ni paste.

In this embodiment, at the time of display, the auxiliary electrode 11 connected to the cathode electrode 6 and the anode electrode 7 is used.
Ultraviolet rays are generated by the DC discharge during this period, and visible light from the phosphor layer 10 excited by the ultraviolet rays is emitted to the outside through the transparent anode electrode 7 and the window glass 2.

As described above, in this embodiment, the auxiliary electrode 11 connected to the cathode electrode 6 and the anode electrode 7
And a DC discharge occurs. Therefore, the discharge is not hindered by the phosphor layer as in the related art, and the discharge voltage can be reduced.

The auxiliary electrode 11 is formed to be elongated, and the transparent anode electrode 7 serving as an opening of a discharge cell is formed.
Of the auxiliary electrode 11
Accordingly, the opening of the discharge cell is not greatly narrowed, and the display quality is not impaired.

In the above embodiment, the phosphor layer 10
Is described as an insulator, but the present invention can also be applied to an apparatus in which a powder of a conductive substance is mixed with the phosphor layer 10.

[0023]

According to the present invention, since a DC discharge is generated between the first electrode and the auxiliary electrode, the discharge is not hindered by the phosphor layer and the discharge voltage can be reduced. Also,
Since the auxiliary electrode is formed to be elongated and only slightly overlaps the end of the transparent second electrode which becomes the opening of the discharge cell, the opening of the discharge cell is greatly narrowed by the auxiliary electrode, and the display quality is improved. Does not hurt.

[Brief description of the drawings]

FIG. 1 is a perspective view of a main part showing the inside of an embodiment of a gas discharge display device according to the present invention.

FIG. 2 is a perspective view of a main part showing the inside of a conventional gas discharge display device.

FIG. 3 is a schematic plan view showing a case where the window glass of FIG. 1 is viewed from above.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Base glass (1st substrate) 2 Window glass (2nd substrate) 6 Cathode electrode (1st electrode) 7 Anode electrode (2nd electrode) 8 Shield mask 9 Partition 10 Phosphor layer 11 Auxiliary electrode

Claims (1)

(57) [Claims] A first substrate, a plurality of first electrodes formed on the first substrate, a second substrate opposed to the first substrate at a predetermined interval, and a transparent electrode. A plurality of second electrodes extending in a direction intersecting the first electrode on the second substrate and arranged to face the first electrode, and formed on the second electrode. In a gas discharge display device having a phosphor layer and emitting and emitting light between the intersections of the first electrode and the second electrode, the gas discharge display device is elongated in the same direction as the second electrode, and at the end of the second electrode. A gas discharge display device having an auxiliary electrode that overlaps, is electrically connected to the second electrode, and further has a top exposed on the phosphor layer.