JPH09251842A - Gas electric discharge display panel and manufacture thereof - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a gas electric discharge panel of a high contrast so as to form a monitor by constituting opaque bus electrodes of band members and branch members. SOLUTION: A pair of main discharging electrodes 6, 7 are provided in each display cell array. Branch members 18b of bus electrodes 62, 72 are disposed on one side of band members 18a of the bus electrodes 62, 72. In one display cell array, the bus electrodes 62, 72 of the pair of main discharging electrodes 6, 7 are disposed opposite to each other with the branch members 18b held therebetween. Viewed from a front base board, the branch members 18b are superposed at the bottom face of the front base board of a first member of a barrier rib along a laminating direction of a gas electric discharge display panel.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a gas discharge type display panel such as a plasma display, and more particularly to an AC drive type gas discharge type display panel having a high contrast and a method for manufacturing the same, and further a gas discharge type display panel. The present invention relates to a display unit such as a monitor using.

[0002]

2. Description of the Related Art A gas discharge type display panel such as a plasma display performs display by self-luminous display and thus has a wide viewing angle and is easy to see. In addition, it has features such as being able to manufacture a thin type and realizing a large screen,
It is expected to be applied to display devices of information terminal equipment and high-definition television receivers.

The gas discharge type display panel is roughly classified into a DC drive type and an AC drive type. Among them, the AC drive type plasma display has a memory function due to the action of the dielectric layer covering the electrodes, and has high brightness. In recent years, application of a protective film or the like has made it possible to obtain a practically useful life, and an AC drive type has been put into practical use as a versatile video monitor.

FIG. 9 is a partial perspective view showing the structure of a practical plasma display panel. This gas discharge type color display panel includes a back substrate 2 and a front substrate 1 which are arranged to face each other. The back substrate 2 includes barrier ribs 3a for keeping a constant gap with the front substrate 1, and the front substrate 1 and the back substrate 2 have the barrier ribs 3a.
Connected through. It should be noted that FIG. 9 shows the barrier ribs 3a of the front substrate 1 and the rear substrate 2 in order to make the diagram easy to see.
And are shown separately.

The front substrate 1 has a structure in which display electrodes (transparent electrodes) 61, 71, bus electrodes 62, 72, a dielectric layer 8 and a MgO film (protective film) 9 are formed on a front glass plate 4. There is. The back substrate 2 has a structure in which an address electrode 14, a barrier rib 3a, and a phosphor layer 12 are formed on a back glass plate 5. Then, the front substrate 1 and the rear substrate 2 are arranged in parallel with each other so that the surfaces on which the electrodes are formed face each other, and the front substrate 1 and the rear substrate 2 are bonded to each other to form a discharge space 3f between the front substrate 1 and the rear substrate 2. doing. The display electrodes 6 and 7 and the address electrode 14 are orthogonal to each other with the discharge space 3f interposed therebetween.

Cross-sectional views of this gas discharge type display panel are shown in FIGS. 10 (a) to 10 (c) and FIG. FIG. 10 (a)
FIG. 4 is a cross-sectional view when a part of the display panel of this embodiment is cut along a plane parallel to the address electrodes 14 and perpendicular to the surfaces of the substrates 1 and 2. In addition, FIG. 10B shows A of FIG.
Is a cross-sectional view at the position of, and its cut surface is a plane perpendicular to the address electrodes 14 and perpendicular to the surfaces of the substrates 1 and 2. FIG. 10C is a cross-sectional view at the position B in FIG. 10A, and the cut surface is a plane perpendicular to the address electrodes 14 and perpendicular to the surfaces of the substrates 1 and 2. In addition, FIG.
In (c), in order to make the drawing easy to see, only the cross-section is shown, and the illustration of the configuration that may be seen in the back of the screen is omitted. 22 is a cross-sectional view taken along the plane indicated by C in FIG. 10 (a).

As shown in FIGS. 10B and 10C, a display cell (also called a discharge cell) is formed between the substrates 1 and 2 for each set of display electrodes 61 and 71. A discharge space 3f is formed by the substrates 1 and 2 and the barrier rib 3a. A phosphor layer 12 is formed inside the discharge cell. A discharge gas is filled in the space 3f in the cell. In this conventional display panel, as shown in FIG. 22, the barrier ribs 3a are in the shape of parallel rods, and the discharge spaces 3f of horizontally (or vertically) continuous cells are not separated by the barrier ribs 3a. FIG. 22 is a parallel cross section of the discharge space.

When a pulse voltage is applied between the electrodes 6 and 7 of the front substrate 1 and the address electrodes 14 formed on the rear substrate 2, each cell formed by the front substrate 1, the rear substrate 2 and the barrier rib 3a. An auxiliary discharge is generated in 3f. By utilizing this auxiliary discharge, the front substrate 1 for each cell
Wall charges are formed on the surface of the protective layer 9 covering the parallel electrodes 6 and 7 formed in the above. Then, when a pulse voltage is applied between the electrode 6 and the electrode 7 on which the wall charges are formed, a main discharge occurs. The ultraviolet rays generated by this main discharge cause the fluorescent body 12 coated inside the cell to emit light. The display on the display panel is due to the light from the phosphor 12 observed through the front substrate 1.

The conventional example of the gas discharge type display device shown here is a flat panel display 1994 (edited by Nikkei Microdevices, 1993), pages 198 to 201.
Page.

[0010]

However, in the above-mentioned conventional technique, the display cells arranged in the extending direction of the address electrode 14 are separated only by the positional relationship between the display electrodes 6 and 7, and the adjacent display cells are separated from each other. In order to prevent erroneous discharge between cells, it is necessary to increase the distance between the display electrodes between adjacent display cells. The space between the display cells does not contribute to the display, but due to the emission of the existing phosphor 12,
Light bleeding and color mixing occur. In addition, the display electrodes 6 and 7
Bus electrodes 62 and 72 for reducing the electrode resistance are provided in the column, and many barrier ribs 11 are present between the display cells arranged in the direction in which the display electrodes extend. Since the bus electrodes 6 and 7 are made of an opaque material, they do not contribute to the display. The adverse effect of the presence of the bus electrode becomes large when the electrode width is widened to reduce the electrode resistance. As described above, the presence of the portion around the display cell that does not contribute to the display lowers the aperture ratio of the panel, which causes a decrease in brightness. Further, the light emission between the display cells and the presence of the non-black barrier ribs 11 cause the deterioration of the black display state. As described above, in the above-described conventional technique, it is difficult to reduce the brightness in the dark state and improve the brightness in the bright state, and it is not possible to realize high contrast.

An object of the present invention is to solve the above-mentioned drawbacks of the prior art and provide a gas discharge panel with high contrast,
Another object of the present invention is to provide a manufacturing method thereof and a monitor using the same. In addition, in this gas discharge display panel, the resistance of the bus electrode is low.

[0012]

In order to achieve the above object of the present invention, the gas discharge panel of the present invention is constructed as follows.

Generally, in a gas discharge type display panel, as a main discharge electrode provided on a front substrate, in addition to a transparent display electrode, an opaque conductor (in many cases, metal) is used to reduce the resistance of the display electrode. A bus electrode is provided. Therefore, in the present invention, in order to achieve the above object, the opaque bus electrode has a shape that divides individual display cells, that is, a shape that is composed of a band-shaped member and a branch-shaped member extending from the member. To Further, in the present invention, it is desirable to arrange the bus electrodes so as to surround the display cell.

Therefore, in the present invention, a front substrate provided with a main discharge electrode group for performing display and a display cell to be opposed to the front substrate with a space therebetween are selected. A gas discharge type display panel comprising: a rear substrate having an auxiliary discharge electrode group; and a phosphor layer formed on an inner wall of a space where a main discharge is performed, wherein the main discharge electrode is made of an opaque material. Equipped with a bus electrode,
When viewed from the front substrate side along the stacking direction of the gas discharge display panel, there is provided a gas discharge display panel that forms a frame that at least partially surrounds the periphery of each display cell.

Specifically, the bus electrode is provided with a strip-shaped member extending in the extending direction of the display electrode and a plurality of branch-shaped members extending from the strip-shaped member, and the strip-shaped member is seen from the front substrate side. If it is provided so as to separate adjacent display cell rows (display cell rows along the extending direction of the display electrode), and each branch member is provided so as to separate adjacent display cells in each cell row. Good. With this configuration, when viewed from the front substrate side, the strip-shaped members of the two bus electrodes are arranged along the parallel two sides of the four sides around each display cell, and the remaining two sides are respectively arranged. Following the above, two branch-shaped members (a total of four branch-shaped members) extending from the strip-shaped members of two adjacent bus electrodes are arranged, and as a whole, the periphery of each display cell (branch-shaped member) is arranged. (Excluding a gap for preventing a short circuit between them) is surrounded by the two bus electrodes, so that light bleeding or color mixing of light in the display cell can be prevented. That is, the bus electrode serves as a black stripe or a black matrix.

Further, according to the configuration of the present invention, the bus electrode 6
Since there are 2, 72 branch-shaped portions 18b, the resistance is lower than that of the conventional bus electrode having no branch-shaped portion. This will be described with reference to FIGS. 25a and 25b. This figure schematically shows the shape of the bus electrode pattern. FIG. 25a shows an electrode pattern shape according to the present invention, as shown in FIG.
5b shows the conventional electrode pattern shape.

In the figure, L is the display electrode 6 of the display cell,
7 is the length in the extending direction, and L1 is the branch portion 1 of the bus electrode.
8b is the width, W is the width of the display electrodes 6 and 7, W1 is the bus electrode 6
The width of 2, 72 (in FIG. 25a, the strip-shaped portion 18a of the bus electrode) is shown. In the case of this figure, the length of the branch portion 18b of the bus electrode shown in FIG. 25a is W-W1. The area of one display cell is shown surrounded by a wavy line. The barrier ribs that divide the discharge space overlap the wavy line portions that are orthogonal to the direction in which the display electrodes 6 and 7 extend. However, if the barrier ribs overlap the wavy line portions that are parallel to the direction in which the display electrodes extend. Not necessarily.

When the bus electrode has an electrode pattern shape according to the present invention as shown in FIG. 25a, the resistance R1 of the bus electrode per single cell in the direction in which the display electrode extends can be expressed by the following equation.

R1 = Rs × L / W1-Rs × L1 (1 / W1-1 / W) Here, Rs represents the sheet resistance of the electrode layers forming the bus electrodes 62 and 72.

In addition, the resistance per single display cell in the direction in which the display electrode of the conventional bus electrode shown in FIG. 25b extends.
R0 can be represented by the following equation.

R0 = Rs × L / W1 By comparing the above two equations, by providing the branch portion 18b on the bus electrode, the resistance of the bus electrode is (L1 / L) × ( It can be seen that the size is reduced by 1-W1 / W) x 100%.

This shows that the resistance is lowered by increasing the electrode width of the bus electrodes 6 and 7 at the branch portion 18b, but from the opposite side, the strip electrode portion 18a of the bus electrode is formed. It shows that the width can be reduced. Therefore, according to the configuration of the present invention, the aperture ratio can be increased by reducing the occupied area of the strip-shaped portion of the opaque bus electrode. Therefore, the brightness of the display panel increases,
The contrast can be increased.

In the above-mentioned conventional example, many barrier ribs 3a are present between the display cells when viewed from the front substrate 1 side. As described above, the presence of the portion where the display cannot be controlled around the display cell is a cause of lowering the quality of the black display state and consequently lowering the contrast.
Therefore, it is desirable that the strip-shaped member and the branch-shaped member of the bus electrode are arranged so as to cover the barrier ribs when viewed from the front side. This is because even if a white ceramic is used as the barrier rib, a high quality black display state can be secured, and as a result, the contrast can be increased. Also, by disposing the bus electrodes in this way, the aperture ratio of the display screen is increased, and the light emitted from the phosphor effective for display is efficiently radiated to the outside through the front substrate, thereby reducing the brightness. Can be higher

In addition to the bus electrodes, a band-shaped shielding member made of an opaque material is provided, and the shielding members cover the portions where the barrier ribs not covered with the bus electrodes and the phosphors between the display cells exist. This is more desirable because it can reduce the influence on the display image quality of the portion that does not contribute to the display around the display cell.

[0025]

BEST MODE FOR CARRYING OUT THE INVENTION A gas discharge type display panel of the present invention is a front substrate provided with a main discharge electrode group for performing display, and is arranged to face the front substrate with a space therebetween to emit light. A rear substrate having an electrode group for auxiliary discharge for selecting a display cell, a barrier rib made of an insulating material that divides a gap between the front substrate and the rear substrate into display cells, and formed on the inner wall of the space where the main discharge is performed. And a phosphor layer. Here, the main discharge electrode group is composed of a plurality of main discharge electrodes having the same extending direction, and each main discharge electrode is made of a transparent material, and is a strip electrode parallel to the main surface of the front substrate. And a bus electrode made of an opaque material, which is provided for each of the display electrodes and has one of the front and back surfaces in contact with the display electrode. In the auxiliary discharge electrode, the bus electrode includes a strip-shaped member extending in the extending direction of the display electrode, and a plurality of branch-shaped members extending from the strip-shaped member.

It is desirable that the bus electrode be configured to appear black when viewed from the front substrate side along the stacking direction of the gas discharge type display panel. This is because it is possible to improve the quality of the black display state by suppressing stray light that cannot be controlled.

When viewed from the front substrate side along the stacking direction of the gas discharge type display panel, the strip-shaped member separates the display cell rows along the extending direction of the display electrodes, and the branch-shaped member, It is desirable that the display cell columns are provided so as to separate the display cells adjacent to each other in the extending direction of the display electrodes. As mentioned above, with this arrangement,
This is because the individual display cells can be fractionated by the opaque bus electrodes.

Further, as described above, it is desirable to cover the barrier ribs in order to improve the quality of the black display state. Generally, the display cells are arranged in a matrix. Therefore, the barrier ribs provided for partitioning the display cells are adjacent to the first member that divides each display cell belonging to the display cell row along the extending direction of the display electrode and / or the display cell row. It has a 2nd member which divides with a display cell row. Therefore, when viewed from the front substrate side along the stacking direction of the gas discharge display panel, the branch member of the bus electrode seems to at least partially overlap with the bottom face of the first member of the barrier rib on the front substrate side. It is desirable that the strip-shaped member of the bus electrode is disposed so that at least a part of the strip-shaped member of the bus electrode can be seen to overlap with the bottom surface of the second member of the barrier rib on the front substrate side.

That is, the branch member is the first of the barrier ribs.
It is desirable that the bottom surface of the member is arranged so as to at least partially overlap with an image obtained by projecting the bottom surface from the back substrate side onto the surface on which the bus electrodes are provided along the stacking direction. The member is arranged so that at least a part thereof overlaps with an image obtained by projecting the bottom surface of the second member of the barrier rib along the stacking direction from the back substrate side to the surface provided with the bus electrode. Is desirable.

Also, when viewed from the front substrate side along the stacking direction of the gas discharge display panel, the above-mentioned shielding member is so arranged that at least a part of the second member of the barrier rib overlaps with the bottom face of the front substrate side. May be provided.

In the present invention, the bus electrode is made of an opaque conductor, and a metal usually used as an electrode can be used. As a material for the bus electrode and the electrode for auxiliary discharge, a metal such as Cu, Cr, Al, Ti, Ni, W, or Mo, or an alloy thereof can be used.
As a method for forming these electrodes, a sputtering method,
An electron beam evaporation method, a plating method, a resistance heating evaporation method, a thick film printing method, or the like can be applied. The bus electrode may be a composite film in which a first refractory metal, copper or aluminum, and a second refractory metal are laminated in this order. Here, the first refractory metal and the second refractory metal are each one kind of metal selected from chromium, titanium, nickel, tungsten, and molybdenum, or
It is an alloy of the metal. Of the front and back surfaces of the bus electrode, the surface facing the outside of the front substrate is preferably provided with the oxide film of the refractory metal.

For the display electrode, a transparent conductive material such as tin oxide or ITO is used. As a method of forming this display electrode, a sputtering method, an electron beam evaporation method, a chemical vapor reaction method, a sol-gel method or the like can be used.

Further, in the present invention, the main discharge electrode is formed on the surface of the base material made of a transparent insulating material, but the surface of the base material forming the main discharge electrode is roughened. Is desirable. This is to reduce the reflectance of the surface of the bus electrode on the front side of the panel. This roughening treatment can be performed by, for example, a sandblast method.

When the front substrate is manufactured, if the bus electrodes are first formed on the surface of the base material made of a transparent material and then the display electrodes are formed, the bus electrodes and the transparent base material (such as a glass plate) are formed. A metal oxide film having a reflectance lower than that of the metal surface can be easily formed on the interface. Therefore, the order of stacking the front substrate is as follows: a base material made of a transparent material, a bus electrode, a display electrode,
It is desirable to arrange the dielectric layers in order.

In the above-mentioned conventional technique, since the auxiliary discharge is performed in the same space as that of the main discharge, which is provided with the phosphor layer 12,
The phosphor layer 12 also emits light by the auxiliary discharge. Therefore,
With such a display panel, it is difficult to obtain sufficient contrast. Therefore, the display panel of the present invention is
It is desirable to further include a discharge space separating partition wall for separating the space in the discharge cell into a main discharge space on the front substrate side and an auxiliary discharge space on the rear substrate side. However, this discharge space separating partition wall has a through hole for connecting the main discharge space and the auxiliary discharge space. In this case, the phosphor layer 1
2 is formed on the side surface of the barrier rib and the surface of the partition wall, which form the inner wall of the main discharge space. By doing so, the main discharge space and the auxiliary discharge space are separated, and the light of the auxiliary discharge is also blocked by the partition walls, so that high contrast can be obtained. In many cases, it is desirable to provide the separating partition wall, but it is not always necessary.

When the barrier ribs are thus provided, the bus electrodes are arranged so as to cover the front substrate side openings of the through holes of the barrier ribs when viewed from the front substrate side along the stacking direction of the gas discharge display panel. It is desirable to do. With this configuration, the light of the auxiliary discharge that leaks through the through hole can be shielded, so that a higher contrast can be obtained.

Next, specific examples of the shape and arrangement of the bus electrodes in the present invention will be described. The "display cell row" means a row of display cells along the extending direction of the display electrodes.

According to the first aspect of the present invention, as shown in FIG. 1, two main discharge electrodes 6 and 7 are provided for each display cell column (the main discharge electrode 6 is provided for each display cell column). Since one main discharge electrode 7 is provided for each display cell column, a total of two main discharge electrodes 7 are provided for each display cell column). Branch member 18
b is provided on one side of the strip-shaped member 18a of the bus electrodes 62 and 72, and the bus electrodes 62 and 72 of the two main discharge electrodes corresponding to one display cell row are provided with the branch-shaped member 18b. The sides are arranged so as to face each other inside. Further, the branch member 18b is arranged so as to overlap the bottom surface of the first member of the barrier rib on the front substrate side when viewed from the front substrate side along the stacking direction of the gas discharge display panel.

In this first mode, as shown in FIG.
The strip-shaped member of one of the bus electrodes 62, 72 (62 in FIG. 2) is a through hole (priming path) of the partition wall 13 when viewed from the front substrate side along the stacking direction of the gas discharge display panel.
It is desirable to arrange so as to cover the front substrate side opening of 15.

Further, in the first mode, as shown in FIG. 5, a strip shape is formed between the main discharge electrode 6 or 7 and the main discharge electrode 7 or 6 provided in the adjacent display cell row. It is desirable to provide a shielding member 17 made of an opaque material to cover the upper surface of the barrier rib 11 between the display cell columns.

According to the second aspect of the present invention, as shown in FIG. 6, three main discharge electrodes 6 and 19 are provided for every two display cell columns, and these three main discharge electrodes are provided. The central one 7 out of 6, 19 is provided across the two display cell columns. In this embodiment, the three main discharge electrodes 6,
The bus electrode 192 of the central main discharge electrode 19 of the 19
Is provided with branch members 18b on both sides, and the other main discharge electrode 6
The bus electrode 62 has a branch member 18b on one side,
The bus electrode 62 of the other main discharge electrode 6 is the branch member 1
It is desirable that the side on which 8b is provided faces the central main discharge electrode 7. With this configuration, the periphery of each display cell can be surrounded by the bus electrode.

According to the third aspect of the present invention, the main discharge electrode is provided for each display cell row along the extending direction of the display electrode, and each main discharge electrode is provided in two display cell rows. It is provided astride. In this case, it is desirable that the branch members of the bus electrode are provided on both sides of the strip member of the bus electrode.

In the third mode, as shown in FIG.
Of the three main discharge electrodes 6 and 19, two 6 on both sides,
A shield member 17 made of a strip-shaped opaque material is provided between the main discharge electrodes 6 provided in the adjacent display cell rows,
It is desirable to cover the upper surface of the barrier rib 11 between the display cell rows.

In the above-mentioned second aspect or third aspect,
When viewed from the front substrate side along the stacking direction of the gas discharge type display panel, the strip-shaped member 1 of the bus electrode 192 of the common electrode 19 for the main discharge provided across the two display cell rows.
It is desirable to arrange 8a so as to overlap the bottom surface of the second member of the barrier rib on the front substrate side. Further, similar to the first aspect, the branch member 18b is arranged so that the bottom surface of the first member of the barrier rib on the front substrate side overlaps when viewed from the front substrate side along the stacking direction of the gas discharge display panel. It is desirable to be arranged.

In the fourth aspect of the present invention, as shown in FIG. 8, three main discharge electrodes 6 and 19 are provided for each display cell column, and three main discharge electrodes 6 and 19 are provided. Of these, the two electrodes 19 on both sides are electrodes common to the main discharge electrodes 19 of adjacent display cell columns. In this case, the branch members 18b of the bus electrodes 62, 192 are preferably provided on both sides of the strip member 18a of the bus electrodes 62, 192.

Further, in the case of the fourth aspect, in the structure further including the above-mentioned discharge space separating partition wall 13, when viewed from the front substrate side along the stacking direction, three main discharges for each display cell are provided. The strip-shaped member 18a of the bus electrode 192 of the common electrode 19 for main discharge on both sides of the electrodes 6 and 19 is arranged so as to overlap with the bottom surface of the second member of the barrier rib on the front substrate side, and the main discharge non-electrode for central discharge is provided. The strip-shaped member 18a of the bus electrode 62 of the common electrode 6 is preferably arranged so as to cover the front substrate side opening of the through hole (priming path) 15. Further, the strip-shaped member 1 of the bus electrode 192 of the common electrode 19
8a is preferably arranged so as to overlap the bottom surface of the second member of the barrier rib on the front substrate side when viewed from the front substrate side along the stacking direction of the gas discharge display panel.

Next, an embodiment of the present invention will be described with reference to the drawings. It should be noted that "upper" represents the direction from the back substrate to the front substrate in the stacking direction, and "lower" represents the direction from the front substrate to the back substrate in the stacking direction. Further, the “auxiliary discharge cell row” means a row of display cells along the extending direction of the auxiliary discharge electrode. The materials, sizes, manufacturing conditions, manufacturing apparatuses, and the like described in the following description merely show one embodiment. Therefore, the present invention is not limited only to these conditions.

Example 1 A cross section of a gas discharge type color display panel of this example is shown in FIG. 1A is a sectional view of the display panel cut along a plane parallel to the address electrodes 14 and perpendicular to the surfaces of the substrates 1 and 2. Also, FIG.
1B is a cross-sectional view taken along the line A in FIG. 1A, the cut surface of which is along the extending direction of the bus electrodes 62 and 72.
It is a plane parallel to the surface of the glass plate 4. FIG. 1 (b)
In the above, the display electrodes 61, 71 are not shown in cross section, but they are represented by adding a satin pattern for easy viewing. FIG.
FIG. 1C is a sectional view taken along the line BB ′ in FIG. 1A, and its cut surface is a plane perpendicular to the address electrodes 14 and perpendicular to the surfaces of the substrates 1 and 2.

The gas discharge type color display panel of the present embodiment, as shown in FIGS.
A back substrate 2 and a partition substrate 3 that forms a cell that defines a pixel by partitioning the gap therebetween are provided. In the gap between the front substrate 1 and the rear substrate 2, a mixed gas of He and Xe (Xe content of 5% by volume in this embodiment) is sealed.

The front substrate 1 includes a soda glass plate 4 and a pair of main discharge electrodes 6 and 7 formed on the surface of the soda glass plate 4, which are common to all cells in a cell row in a direction perpendicular to the plane of FIG. A dielectric layer 8 formed on the surface of the soda glass plate 4 so as to cover the electrodes 6 and 7, and a protective film (MgO film) 9 formed on the surface of the dielectric layer 8 are further provided. The main discharge electrode is an ITO (Indium Tin Oxi) transparent display electrode.
de) Electrodes 61 and 71 and bus electrodes 62 and 72 formed on the surfaces of the ITO electrodes 61 and 71.

The electrode pattern of the display electrodes 61, 71 is such that a large number of parallel electrodes are provided so that two electrodes are provided in parallel with each cell in the cell row arranged in one direction among the cells arranged in a matrix. It is patterned as a simple linear pattern.

The bus electrodes 62 and 72 are the display electrodes 6
It is provided for each of the parts 1 and 71, and as shown in FIG. Bus electrode 6
The second branch-shaped member 18b is provided on one side of the strip-shaped member 18a of the bus electrodes 62, 72, and the bus electrodes 62, 72 of the two main discharge electrodes corresponding to one display cell column are the branch-shaped members. The side where 18b is provided is inwardly disposed so as to face each other. Further, as shown in FIG. 1C, the branch member 18b
When viewed from the front substrate side along the stacking direction of the gas discharge display panel, the bottom surface of the first member of the barrier rib on the front substrate side overlaps, except for a gap for preventing a short circuit.

As can be seen from FIG. 1B, the bus electrode 6
By making the shapes and the arrangement of 2, 72 as described above, the periphery of each display cell 300 (excluding the gap for preventing the short circuit of the electrodes) is opaque when viewed from the front side. Since it is surrounded by 62 and 72, the bleeding and color mixing of the coloring of the display cells are prevented.

Further, the resistance of the bus electrodes 62 and 72 is low due to the existence of the branch portion, so that the width of the strip portion 18a can be made smaller than in the conventional example in which the branch portion is not provided. This will be described below with reference to FIG. For example, the length in the direction in which the display electrodes 6 and 7 of the display cell extend
(L) is 0.4 mm, the width (L1) of the branch portion 18b of the bus electrode is 0.1 m
m, the width (W1) of the strip portion 18a of the bus electrodes 62 and 72 is 0.08
mm, and the length (W-W1) of the branch portion 18b is 0.42 mm,
In order to obtain the same resistance as in the present embodiment with a conventional bus electrode having no branch portion as shown in FIG. 25b, the width of the bus electrode is
It must be 0.1 mm or more. This effect is great when the width W1 of the bus electrode is reduced to increase the aperture ratio, or when the width of the strip-shaped portion 18a of the bus electrode is not increased and the resistance value of the bus electrode is reduced. That is, according to the present embodiment,
It is effective in improving the brightness and contrast by improving the aperture ratio and increasing the driving speed by reducing the resistance of the bus electrodes.

The back substrate 2 covers the soda glass plate 5, the auxiliary discharge electrode 14 formed on the surface thereof, the dielectric layer 8 formed on the surface of the auxiliary discharge electrode 14, and the surface of the dielectric layer 8. The protective film (MgO film) 9 thus formed is provided. The auxiliary discharge electrode 14 is composed of two strip-shaped address electrodes 141 and 142 for each row of display cells (auxiliary discharge cell row) arranged at right angles to the extending direction of the display electrodes. The address electrodes 141 and 142 are patterned as a large number of linear patterns which are parallel to the substrate surface and parallel to each other and which are extended in a direction perpendicular to the extending direction of the display electrodes 61 and 71.

Since the MgO film 9 formed on the front substrate 1 and the rear substrate 2 has a low sputtering rate and excellent sputtering resistance, damage due to sputtering during discharge can be suppressed, and it functions as a protective film for the dielectric layer 8. .
The MgO film 9 is effective in extending the life of the display panel because it suppresses sputtering due to discharge, and is effective in lowering the discharge voltage and stabilizing discharge because it has a high secondary electron discharge coefficient. In addition, since the MgO film 9 is transparent, the phosphor 12
It is easy to let the light emitted from the device pass through and is suitable for use in a display panel.

The partition substrate 3 is a barrier rib 3a connected to the MgO film 9 of the front substrate 1 and the MgO film 9 of the rear substrate 2.
A barrier rib 13 connected to the barrier rib 3a and parallel to the front substrate 1 and the rear substrate 2, and a phosphor layer 12 formed on the barrier rib 3a and the barrier rib 13 on the front substrate side. The phosphor layer 12 is green due to the ultraviolet rays generated by the discharge,
It consists of a phosphor that emits blue or red. It should be noted that which color is used for the phosphor is determined for each cell so that the color scheme of the entire substrate has a predetermined pattern.

The barrier rib 3a comprises a barrier rib 11 on the front substrate side and a barrier rib 16 on the rear substrate side. The barrier ribs 11 and 16 are formed integrally with the partition wall 13, and these are made of glass or ceramic. In order to prevent color mixing due to light emitted in a display cell leaking into an adjacent display cell, a barrier rib 11
It is desirable that the partition wall 13 be opaque white or colored to shield light.

The cells formed by the front substrate 1, the rear substrate 2 and the partition substrate 3 are separated from the adjacent cells by the barrier ribs 3a. The space in this cell is divided into a main discharge space 100 and an auxiliary discharge space 200 by a partition wall 13. The partition wall 13 includes a through hole 15, and the through hole 15 functions as a conduction path (priming path) that connects the main discharge space 100 and the auxiliary discharge space 200. In this embodiment, the partition wall 13 is provided parallel to the glass plates 4 and 5, but it need not be horizontal as long as it does not hinder the movement of charged particles and the like.

As shown in FIG. 1A, the main discharge space 10
0 is surrounded by barrier ribs 11 and barrier ribs 13, and individual discharge cells are separated from each other. On the other hand, the auxiliary discharge space 200 is shown in FIGS.
As shown in FIG. 5, the auxiliary discharge spaces 200 are formed in stripes by the barrier ribs 16 parallel to the auxiliary discharge electrodes 14, and the auxiliary discharge spaces 200 of the discharge cells arranged along the auxiliary discharge electrodes 14 are not partitioned. That is, the discharge cells arranged along the auxiliary discharge electrode 14 share the stripe-shaped auxiliary discharge space.

The barrier ribs 11 are formed in a lattice shape, the thickness of the display electrodes 61 and 71 in the extending direction is 0.10 mm, the pitch in the direction is 1.2 mm, and the auxiliary discharge electrode 1 is formed.
The thickness of No. 4 in the stretching direction is 0.07 mm, and the pitch in that direction is 0.4 mm. The barrier rib 16 is formed in a stripe shape extending in the extending direction of the auxiliary discharge electrode 14, and has a thickness of 0.07 mm and a pitch of 0.4 mm.

The partition wall 13 has a thickness of 0.1 mm, is in contact with the barrier rib 3a extending in the extending direction of the display electrodes 61 and 71, and is 0.1 mm away from the barrier rib 3a extending in the extending direction of the auxiliary discharge electrode 14. In addition, the through hole 15 is provided. The size of the main discharge space 100 is 0.3 mm in height, 0.33 mm in the extending direction of the display electrodes 61 and 71, and 1.1 mm in the extending direction of the auxiliary discharge electrode 14. The size of the auxiliary discharge space common to the rows of the auxiliary discharge cells is 0.1 mm in height and 0.33 mm in the extending direction of the display electrodes 61 and 71. In addition, the barrier ribs 11, the barrier ribs 16, the partition walls 13, and the main discharge space 10 described here are used.
0, each dimension of the auxiliary discharge space 200 is a typical value in a display screen having a size of 40 inches or more, and it is desirable to appropriately determine it according to the size of the display screen and the required resolution.

In this embodiment, the main discharge electrodes 6 and 7 having the same extending direction are provided as the main discharge electrode pairs for each display cell column, and the address electrodes having the same extending direction are provided for each auxiliary discharge cell column. 141 and 142 are provided as an auxiliary discharge electrode pair.

The address electrodes 141 and 142 correspond to the address electrodes 141 and 14 corresponding to the adjacent auxiliary discharge cell column.
As long as it is not short-circuited with 2, it does not matter if a part thereof protrudes from below the auxiliary discharge space 200 and below the barrier rib 16. This is because the auxiliary discharge space 200 of each discharge cell arranged in the extending direction of the display electrodes 61, 71 is separated by the rear substrate side barrier rib 16.

In the gas discharge type color display panel of this embodiment, a display which emits light by applying a voltage between one of the main discharge electrode pairs (main electrode) 6 and one of the auxiliary discharge electrode pairs 141. The cell is selected. This will be described below.

In order to cause a certain display cell to emit light, first, a pulse voltage is applied to the auxiliary discharge electrode pairs 141 and 142 that pass under the display cell to emit light to generate auxiliary discharge. The influence of this auxiliary discharge on the phosphor 12 is blocked by the partition wall 13, so that the phosphor 12 does not emit light at this time. In this state, a voltage is applied between the main electrode 6 passing above the display cell to emit light and the auxiliary discharge electrode 141 passing below the display cell to emit light, and further the main electrode passing above the display cell to emit light. A pulse voltage is applied to the discharge electrode pairs 6 and 7. Then, charged particles and the like generated by the discharge in the auxiliary discharge space 200 spread to the main discharge space 100 through the priming path 15, and a wall charge pattern is formed on the surface of the front substrate side protective film 9 via the dielectric layer 8. The voltage due to the wall charges is superposed on the voltage applied to the main discharge electrode pair 6, 7 to generate the main discharge. That is, a main discharge is generated in a predetermined display cell that emits light.

By this main discharge, the sealing gas (Ne gas containing 5% Xe in this embodiment) is excited to generate ultraviolet rays, and the ultraviolet rays cause the phosphor 12 to emit light. The emitted light is emitted to the outside through the front substrate 1.

As described above, an auxiliary discharge is generated by applying a pulse voltage to the auxiliary discharge electrode pair 141, 142 passing under the specified discharge cell, and the main electrode 6 passing over the specified display cell. A voltage is applied between the auxiliary discharge electrode 141 and the auxiliary discharge electrode 141 to specify a display cell in which a main discharge is generated, and a pulse voltage is applied to the main discharge electrode pair 6 and 7 passing above the specified cell. An image is formed on the display panel by causing a main discharge in the display cell, generating visible light by the main discharge, and radiating the visible light to the outside through the front substrate 1.

Thus, in this embodiment, each cell is
The front substrate 1 and the rear substrate 2 are separated by the barrier rib 3a.
By partitioning the space between them by the partition wall 13, the radiation generated by the auxiliary discharge is prevented from hitting the phosphor 12.
Hide the auxiliary discharge from the phosphor 12. Therefore, in the display panel of the present embodiment, even if the auxiliary discharge electrode 14 on the rear substrate 2 side generates an auxiliary discharge, the light emission due to this auxiliary discharge is blocked by the barrier ribs 13, and only by the main discharge. Since the light body 12 emits light, only the auxiliary discharge occurs, and in the cell in which the main discharge does not occur, the phosphor 12 does not emit light, and only the light emission due to the main discharge can be observed from the front substrate 1 side. It is possible to obtain a high contrast.

In this embodiment, as can be seen from FIGS. 1B and 1C, the branch members 18b of the bus electrodes 62 and 72 are formed.
But extends toward the counter electrode on the barrier rib 11. That is, on the barrier rib 11 that partitions the main discharge space 100, the branch member 18 of the bus electrode 62 of the main electrode 6 is formed.
b extends toward the other main discharge electrode 7 forming the electrode pair, and the bus electrode 72 of this main discharge electrode 7
The branch-shaped member 18b extends toward the main electrode 6 forming the electrode pair. As can be seen from FIG. 1B, there is a bus electrode made of an opaque material between the display cells arranged in the direction in which the electrodes 6 and 7 of the front substrate are extended, which is more controlled than the conventional display panel. There is little stray light that cannot be displayed, and the quality of black display is high.

Further, in this embodiment, as can be seen from FIG. 1A, the bus electrode 62 of the main electrode 6 and the front substrate side opening of the priming path 15 are positioned so as to overlap with each other when viewed from above. There is. Thereby, the light due to the auxiliary discharge does not leak to the outside through the front substrate, and the contrast can be increased.

In this embodiment, the display electrodes 61, 71 are
Are elongated in a strip shape. However, the bus electrodes 62, 7
Since the electrical continuity from the power source is secured by 2, it is not necessary to make the display electrodes 61 and 71 continuous along the display cell row, and each discharge cell is formed as an independent electrode, and each display electrode is a bus electrode. You may connect by 62,72.

Next, a method of manufacturing the gas discharge type display panel of this embodiment will be described with reference to FIGS. 23 (a) to 23 (o). FIG. 23 is an explanatory view schematically showing the method of manufacturing the display panel of this embodiment.

A. Preparation of Front Substrate (1) Formation of Main Discharge Electrode First, the front substrate 1 was prepared. Soda lime glass plate 4 (width: about 85 cm, depth: washed with neutral detergent etc.)
About 70 cm, thickness: about 2.8 mm)
An ITO film (which may be another transparent conductive film such as a tin oxide (SnO2) film) 5c was formed by a sputtering method (another film forming method such as an electron beam evaporation method may be used) (FIG. 23).
(A)).

A photosensitive resin composition is applied to the surface of the ITO film 5c in a dustproof room at room temperature of 15 to 25 ° C. and a humidity of 60%, and the coated film of the photosensitive resin composition is applied through a mask having a predetermined pattern for 3 kW Exposure with an ultrahigh pressure mercury lamp (output 8 kW) at an exposure dose of 200-250 mJ / cm2,
Using a 0.7 to 1.0% sodium carbonate aqueous solution, under the conditions of a developing temperature of 25 ° C. and a pressure of 1.2 kg / cm 2,
After spray development for 5 seconds, it was washed with water and dried to form a resist film having a predetermined pattern. Next, the exposed portion of the ITO film 5c was etched with an etching liquid, and then the resist film was peeled with a peeling liquid. With this, IT
The O film 5c is patterned, and the ITO electrode 6 is formed at a predetermined position.
1, 71 were formed (FIG. 23 (b)). The pattern dimensions of the display electrodes 61, 71 may be determined according to the size of the display cell to be manufactured.

Next, on the front glass substrate 4 on which the display electrodes 61 and 71 are formed, a chromium film, a copper film, and a chromium film are formed in this order by a film forming method such as a sputtering method or an electron beam evaporation method. A film was formed. As a result, Cr / Cu / Cr
A laminated film was formed. This laminated film is patterned by the same photo-etching method as described above, and the display electrodes 61, 7 are formed.
Bus electrodes 62 and 72 were formed on the surface of No. 1 (see FIG. 23).
(C)). The thickness of the Cu film and the pattern size of the bus electrode may be determined according to the resistance value required for the bus electrode.

(2) Formation of Dielectric Layer A well-known hydrolyzable coating agent containing Al, Si, and O as the main components on the surface of the glass plate 4 so as to cover the obtained electrodes 61, 62, 71, 72. Is applied by the blade method and 10
By heating at a temperature of 0 to 400 ° C. for 1 to 60 minutes, a dielectric layer 8 having a thickness of 0.005 to 0.03 mm was formed (FIG. 23 (d)).

As the hydrolyzable coating agent containing Al, Si, and O as main components, tri (n-butoxy) aluminum and tetra (n-butyl) silicate are converted into oxides. The gel obtained by hydrolyzing the n-butanol solution containing the weight ratio of 37:63 at room temperature was used.

(3) Formation of Protective Film On the surface of the obtained dielectric layer 8, a thickness of 0.0001 to 0.
A MgO film 9 of 005 mm was formed (FIG. 23 (e)).
The front substrate 1 was produced by the above steps (1) to (3).

B. Production of Back Substrate (4) Formation of Address Electrode Next, the back substrate 2 was produced. First, a soda lime glass plate 5 having a width of about 90 cm, a depth of about 65 cm, and a thickness of about 2.8 mm washed with a neutral detergent or the like (FIG. 23).
In (f)), a chromium film, a copper film, and a chromium film were formed in this order by using a film forming method such as a sputtering method or an electron beam evaporation method. As a result, a Cr / Cu / Cr laminated film was formed. This laminated film is patterned by the photoetching method similar to the above, and the address electrodes 141 and 14 are formed.
2 was formed (FIG. 23 (g)). The thickness of the Cu film and the pattern size of the address electrode may be determined by the resistance value required for the auxiliary discharge electrode.

(5) Formation of Dielectric Layer The same hydrolyzable coating agent containing Al, Si and O as the main component as in the step (2) is coated on the glass plate 5 so as to cover the obtained address electrode 14. Coating with a blade method and a thickness of 0.005 to 0.03 m in the same manner as in step (2) above.
A dielectric layer 8 of m was formed (FIG. 23 (h)).

(6) Formation of Protective Film Since the dielectric layer 8 is formed as described above,
Similar to the step (3), the thickness is 0.001 to 0.0
A 05 mm MgO film 9 was formed (FIG. 23 (i)). The back substrate 2 was manufactured by the above steps (4) to (6). As described in the description of the structure of the display panel in this example, a chip tube (not shown) for exhausting and introducing gas was attached to the rear substrate 2 after the panel was assembled.

C. Preparation of Partition Substrate (7) Formation of Resist Film Next, the partition substrate 3 was prepared. First, width: about 85 cm,
A ceramic plate 30 (or a borosilicate glass plate) having a depth of about 65 cm and a thickness of 0.5 mm and containing alumina as a main component is prepared, and the photosensitive resin composition is applied to one of the front and back surfaces thereof, Through a mask having a predetermined pattern for creating a discharge conduction path between the front substrate side and the rear substrate side in each cell, an ultrahigh pressure mercury lamp of 3 kW (output 8 mW) is used, and 200 mJ / cm 2 to 250 mJ / cm 2 The photosensitive resin composition film was exposed with a photosensitive amount. Next,
Using a 0.2% to 0.5% aqueous sodium carbonate solution,
Development temperature: 25 ° C., pressure: 1.2 kg / cm 2, time:
After spray development for 105 seconds, 0.1
% Of diluted acid, washed with water and dried to form a resist film 31 having a predetermined pattern (FIG. 23 (j)).

(8) Formation of Conduction Path Next, a through hole is formed in the ceramic plate 30 in a portion not covered with the resist film 31 by the sandblast method,
Space 100 on the front substrate 1 side and space 200 on the rear substrate 2 side
A discharge conduction path 15 was formed, and the resist film 31 was stripped with a stripping solution (FIG. 23 (k)). The conduction path 15 is a through hole having a bottom surface of 0.1 mm × 0.15 mm.

(9) Formation of Resist Film A resist film 32 having a predetermined pattern was obtained on both surfaces of the obtained ceramic plate 30 having the conductive path 15 in the same manner as in the above step (7) (FIG. 23 (l). )).

(10) Formation of Barrier Rib and Partition Wall Next, the resist film 32 is formed by the double-sided sandblasting method.
The ceramic plate 30 in the portion not covered with the shavings is shaved to form a space 100 for the main discharge of the cell and a space 200 for the auxiliary discharge.
Then, the resist film 32 was peeled off by a peeling solution. Thereby, the barrier rib 3a in which the barrier rib 11 on the front substrate side and the barrier rib 16 on the rear substrate side are integrally configured,
A component including the partition wall 13 for separating the main discharge and the auxiliary discharge was formed (FIG. 23 (m)).

(11) Formation of Phosphor Layer On the front substrate side of this component, green is formed by a spray method (a blade method or the like may be used) through masks having predetermined patterns for green, blue, and red, respectively. , Blue, and red phosphors, and then dried at a temperature of 150 ° C. to 300 ° C. for 5 minutes to 60 minutes to form a phosphor layer 12 (FIG. 23).
(N)). If color display is not required, the phosphor layers of the same color may be formed in all cells.

By the above steps (7) to (11), the partition substrate 3 which is a component having the barrier rib 3a, the partition 13 and the phosphor layer 12 was obtained.

D. Assembly (12) Assembly of Substrates 1 to 3 Aligning the Substrates 1 to 3 obtained as described above,
The periphery thereof was coated with a sealing material (frit glass) with a dispenser and covered, and then heat-treated at 350 ° C. to 450 ° C. to fix the sealing material 33 (FIG. 23 (o)). At this time, the extending directions of the main discharge electrodes 6 and 7 provided on the front substrate 1 and the extending direction of the auxiliary discharge electrodes 14 provided on the rear substrate 5 are set to be orthogonal to each other.

(13) Injecting gas Further, air between the front substrate 1 and the rear substrate 2 is sucked through the chip tube provided in the rear substrate 2 to make a vacuum, and then 5% Xe is applied. Ne gas containing 35-70 kP
It was introduced until the internal pressure reached a. After that, the tip tube was heated by local heating and the tip was turned off to produce the gas discharge type color display panel shown in FIG.

E. Results In the gas discharge display panel manufactured by the above steps (1) to (13), the bus electrodes 62 and 72 have the shape and arrangement as shown in FIG. At this time, the bus electrodes 62 and 72 look like a matrix that vertically and horizontally divides the display cell 300, which prevents uncontrollable stray light and reduces the brightness in the dark state. Further, the light emission of the auxiliary discharge is shielded by the partition wall 13,
Since only the light emission due to the main discharge is observed, it was possible to obtain a sufficient contrast (100: 1 or more) between the cell in which the main discharge occurred and the cell in which the main discharge did not occur. .

In the present embodiment, the bus electrodes 62, 72
And as a material of the auxiliary discharge electrode 14, Cr / Cu /
Although a Cr laminated film is used, Ag, Cu, Cr, Al,
Ti, Ni, W, Mo, etc., alloys of these metals, or laminated films of these metals or alloys may be used. The bus electrodes 62, 72 and the auxiliary discharge electrode 14 are formed by a thick film printing method, a vacuum vapor deposition method (electron beam vapor deposition method, resistance heating vapor deposition method), or a plating method (electroless plating method, electrolytic plating method). You may form by.
The material forming the display electrodes 71 and 72 is not limited to ITO, and any transparent material having sufficient conductivity such as tin oxide may be used. Further, the forming method is not limited to the sputtering method, and may be appropriately selected from a vacuum vapor deposition method (electron beam vapor deposition method, resistance heating vapor deposition method), a chemical vapor phase reaction method, a sol-gel method, or the like.

The method for forming the dielectric layer 8 is not particularly limited, and a sputtering method, a chemical vapor reaction method, a sol-gel method, a thick film printing method or the like may be appropriately selected. In addition, although MgO is used as the protective layer in this embodiment,
A material having a low sputtering rate with respect to the discharge gas and a high secondary electron emission ability may be used, and CaO, SrO, or a mixture thereof may be used in addition to MgO.

Further, in the present embodiment, the sandblast method is used for forming the partition substrate 3, but other methods may be used. However, since the sandblast method, the etching method, and the like have good positional accuracy, they are more suitable for the present invention than the method of molding and sintering a ceramic slurry. In particular, when forming the barrier rib 16 on the rear substrate side, a lift-off method or a thick film printing technique in which a glass material or a ceramic material is embedded after forming a film pattern is also an effective forming method.

Furthermore, in this embodiment, N is used as the discharge gas.
Although a mixed gas of e and Xe is used, the mixed gas is not limited to these, and may be a mixed gas of He and Xe, for example, as long as it is necessary to cause the phosphor to emit light by discharge and to generate radiation. .

Although the soda glass plates 4 and 5 are used as the base materials of the substrates 1 and 2 in this embodiment, other base materials may be used. However, a transparent material is used as the base material of the front substrate 1.

The gas discharge type display device of this embodiment has four
Since it can be manufactured by a low temperature process of 00 ° C. or less, inexpensive glass such as soda glass having a low strain point can be used as a substrate. However, the temperature of the manufacturing process is not required to be 400 ° C. or lower, and the gas discharge display device of this embodiment can be manufactured even when the temperature of the manufacturing process is 400 ° C. or higher.

When a thin film material such as Cr / Cu / Cr is used as the constituent material of the bus electrodes 62 and 72 as in the present embodiment, the place where the Cr / Cu / Cr pattern of the front glass substrate 4 is formed. It is effective to reduce the reflectance of Cr / Cu / Cr by applying a surface roughening treatment such as sandblasting. This is because the reflectance of Cr is high. If a material having a high reflectance is used for the bus electrodes 62 and 72, the reflected light of the light incident from the front substrate 1 side becomes strong. Therefore, in order to improve the quality of the black display state, it is desirable to roughen the front surface of the bus electrode and diffusely reflect the incident light.

Example 2 A cross section of a gas discharge type color display panel of this example is shown in FIG. 2A is a cross-sectional view of the display panel cut along a plane parallel to the address electrodes 14 and perpendicular to the surfaces of the substrates 1 and 2. FIG.
2B is a cross-sectional view taken along the line A in FIG. 2A, the cut surface of which is along the extending direction of the bus electrodes 62 and 72.
It is a plane parallel to the surface of the glass plate 4. FIG. 2 (b)
In the above, the display electrodes 61, 71 are not shown in cross section, but they are represented by adding a satin pattern for easy viewing. FIG.
2C is a cross-sectional view taken along the line BB ′ in FIG. 2A, and its cut surface is a plane perpendicular to the address electrodes 14 and perpendicular to the surfaces of the substrates 1 and 2.

As can be seen from FIG. 2C, the difference between this embodiment and Embodiment 1 is that one electrode of the auxiliary discharge electrode 14 is the common electrode 143 with the adjacent display cell. is there. In the display panel of this embodiment, two adjacent display cells are used as a unit for selecting the address of the display cell.
The auxiliary discharge electrode 141 is provided, and the common electrode 143 is provided across the auxiliary discharge cell column. A barrier rib 16 is provided on the central portion of the auxiliary discharge common electrode 143 via the dielectric layer 8 and the protective layer 9 to separate the auxiliary discharge spaces 200 of the adjacent auxiliary discharge cell rows. .

In this display panel, by applying a voltage between the non-common electrode 141 for auxiliary discharge and the main electrode 6, the display cell which causes the main discharge is selected.

By configuring the auxiliary discharge electrodes 14 in this way, the number of auxiliary discharge electrodes can be significantly reduced.
This means that the auxiliary discharge space can be reduced, which is effective in realizing a high-definition display screen. Further, by reducing the size of the common auxiliary discharge electrode 143, the area of the non-common auxiliary discharge electrode 141 that overlaps the priming path 15 can be increased, and alignment can be facilitated. Therefore, the manufacturing process of the present embodiment is more stable than that of the first embodiment, the size of the priming path 15 can be reduced, and the contrast can be further increased.

The present invention can be applied regardless of the structure of the auxiliary discharge electrode. Therefore, Example 1 and the auxiliary discharge electrode 14
Also in the present example, which is different only in the configuration of, a display panel with high quality and high contrast similar to that of Example 1 could be obtained.

Example 3 A cross section of a gas discharge type color display panel of this example is shown in FIG. Note that FIG. 3A is a sectional view of the display panel cut along a plane parallel to the address electrodes 14 and perpendicular to the surfaces of the substrates 1 and 2. FIG.
3B is a cross-sectional view taken along the line A in FIG. 3A, the cut surface of which is along the extending direction of the bus electrodes 62 and 72.
It is a plane parallel to the surface of the glass plate 4. FIG. 3 (b)
In the above, the display electrodes 61, 71 are not shown in cross section, but they are represented by adding a satin pattern for easy viewing. FIG.
FIG. 3C is a sectional view taken along the line BB ′ in FIG. 3A, and its cut surface is a plane perpendicular to the address electrodes 14 and perpendicular to the surfaces of the substrates 1 and 2.

As can be seen from FIG. 3C, the difference between this embodiment and the first embodiment is that three address electrodes 143, 141, 143 are provided for each auxiliary discharge cell row, and among these,
The point is that the two electrodes 143 on both sides are used as electrodes common to the adjacent auxiliary discharge cell rows. Barrier ribs 16 are provided on the central portion of the common electrode 143 with the dielectric layer 8 and the protective layer 9 made of MgO interposed therebetween to separate the auxiliary discharge spaces 200 of the auxiliary discharge cell row.

In the display panel of this embodiment, the auxiliary discharge is
This occurs between the auxiliary discharge non-common electrode 141 and the two auxiliary discharge common electrodes 143, and selection of each display cell is performed by applying a voltage between the auxiliary discharge non-common electrode 141 and the main discharge main electrode 6. Is applied.

In this embodiment, the auxiliary discharge in each display cell is generated between the two electrodes between the non-common address electrode 141 and the two common address electrodes 143, so that the auxiliary discharge space is widened. Therefore, charged particles etc.
It becomes easy to spread to the main discharge space 100 through the priming path 15. Further, since the auxiliary discharge is generated between the two electrodes, even if a slight displacement occurs between the partition substrate 3 and the rear substrate 2 forming the auxiliary discharge space 200, the auxiliary corresponding to each display cell is generated. Discharge can be generated, and the partition substrate and the rear substrate can be easily assembled.

As described above, the present invention can be applied regardless of the structure of the auxiliary discharge electrode. Therefore, also in this example, which is different from Example 1 only in the configuration of the auxiliary discharge electrode 14, a display panel of high quality and high contrast similar to that of Example 1 could be obtained.

Example 4 A cross section of a gas discharge type color display panel of this example is shown in FIG. 4A is a sectional view of the display panel cut along a plane parallel to the address electrodes 141 and perpendicular to the surfaces of the substrates 1 and 2. FIG.
4B is a cross-sectional view at the position A in FIG. 4A, the cut surface of which is along the extending direction of the bus electrodes 62 and 72.
It is a plane parallel to the surface of the glass plate 4. FIG. 4 (b)
In the above, the display electrodes 61, 71 are not shown in cross section, but they are represented by adding a satin pattern for easy viewing. FIG.
4C is a cross-sectional view taken along the line BB ′ in FIG. 4A, and the cut surface is a plane perpendicular to the address electrodes 141 and perpendicular to the surfaces of the substrates 1 and 2.

As can be seen from FIGS. 4A and 4C, the difference between this embodiment and Embodiment 1 lies in the structure of the back substrate 2. The other configurations and manufacturing methods are the same as those in the first embodiment. The auxiliary discharge electrode 14 of this embodiment includes an address electrode 141 and a trigger electrode 144 extending in a direction perpendicular to the extending direction of the address electrode 141. The address electrode 141 and the trigger electrode 144 are arranged with the dielectric layer 8 in between.

In the display cell of this embodiment, the auxiliary discharge space 200 in which the discharge is generated is defined by the two auxiliary discharge electrodes 141, 1.
By designating by applying a voltage to 44, the display cell in which the main discharge is generated is selected. A voltage may be applied between the main electrode 6 and the address electrode 141 in order to spread charged particles and the like due to the auxiliary discharge into the main discharge space 100.

In the present embodiment, which is different from the above-mentioned first embodiment only in the structure of the auxiliary discharge electrode 14, the bus electrodes 62,
The function of 72 as a black stripe made it possible to obtain a display panel of high quality and high contrast.

In the display panels of Examples 1 to 3, the display cell that causes the main discharge is selected by applying the voltage for moving the overcharged particles by the auxiliary discharge. However, in the present embodiment, the auxiliary discharge electrode pairs intersect in the extending direction.
Since the book includes the auxiliary discharge electrodes 141 and 144, the auxiliary discharge space 200 itself for generating the auxiliary discharge can be selected by selecting the auxiliary discharge electrode pair to which the voltage is applied. Therefore, in the display panel of the present embodiment, the auxiliary discharge does not occur in the display cell in which the main discharge does not occur. In addition, in this embodiment, the address electrode 141 and the trigger electrode 1
Since the electrodes 44 and 44 are formed in different layers, the auxiliary discharge electrode 1
The presence density of 4 is lower than that of Example 1. Therefore, the degree of freedom in arranging the address electrode 141 facing the main electrode 6 is increased, and the overlapping area of the address electrode 141 and the liming path 15 can be increased. As a result, in this embodiment, it is possible to almost eliminate the influence of the light emission due to the auxiliary discharge on the display image quality, and it is possible to reduce the voltage for spreading the charged particles and the like due to the auxiliary discharge into the main discharge space 100. .

The manufacturing method of the display panel of this embodiment is the same as that of the first embodiment except the manufacturing method of the back substrate 2. Therefore, here, only the method of manufacturing the rear substrate 2 will be described.
This will be described with reference to FIG.

(I) Formation of Trigger Electrode First, washed with a neutral detergent or the like, width: about 90 cm, depth:
Cr / Cu / on the surface of the soda glass plate 5 having a thickness of about 65 cm and a thickness of about 2.8 mm in the same manner as in the above step (1).
A Cr laminated film is formed, and the laminated film is patterned by the photo-etching method similar to the step (1) to obtain a width of 0.1.
A trigger electrode 144 having a thickness of 0.002 mm and a thickness of 0.002 mm was formed (FIG. 24B). The thickness and pattern size of the trigger electrode 144 may be determined according to the required resistance value.

(Ii) Formation of Dielectric Layer On the glass plate 5 so as to cover the obtained trigger electrode 144, a part 8c of the dielectric layer 8 (thickness: 0. 005 to 0.03 mm) was formed (FIG. 24).
(C)).

(Iii) Formation of Address Electrodes and Dielectric Layer Further, a Cr / Cu / Cr laminated film was formed on the surface of the obtained dielectric layer portion 8c in the same manner as in the above step (i). Address electrodes 141 are formed (see FIG. 24).
(D)), so as to cover the obtained address electrode 141,
On the dielectric layer 8c, the rest of the rear substrate side dielectric layer 8 (thickness: 0.005 to 0.03 mm) is formed in the same manner as in step (ii).
Was formed (FIG. 24 (e)).

(Iv) Formation of Protective Film Since the dielectric layer 8 is formed as described above,
Similar to the step (3), the thickness is 0.0001 to 0.00
A 5 mm MgO film 9 was formed. A chip tube (not shown) was attached to the rear substrate 2 for exhaust and gas introduction after panel assembly.

The back substrate 2 obtained as described above,
The front substrate 1 manufactured in the same manner as in Example 1 (see FIG.
The display panel of this example was obtained by assembling (a)) and the partition substrate 3 (FIG. 24 (g)) in the same manner as in the example (FIG. 24 (h)) and enclosing gas.

As the material of the trigger electrode 144, a Cr / Cu / Cr laminated film is used in the present embodiment, but like the address electrode 141, Cr, Cu, Al, Ti, Ni,
It can be appropriately selected from W, Mo, alloys thereof, and laminated films thereof. Also, as the method of forming the trigger electrode 144, an electron beam vapor deposition method, a plating method, a resistance heating vapor deposition method, a printing method, or the like can be appropriately used similarly to the address electrode 144.

<Embodiment 5> A cross section of a gas discharge type color display panel of this embodiment is shown in FIG. Note that FIG. 5A is a sectional view of the display panel cut along a plane parallel to the address electrodes 14 and perpendicular to the surfaces of the substrates 1 and 2. Also, FIG.
5B is a cross-sectional view taken along the line A in FIG. 5A, the cut surface of which is along the extending direction of the bus electrodes 62 and 72.
It is a plane parallel to the surface of the glass plate 4. In addition, FIG.
In the above, although the display electrodes 61 and 71 and the shielding member 17 are not cross-sections, they are represented by adding a satin pattern for easy viewing. FIG. 5C is a cross-sectional view taken along the line BB ′ of FIG.
4 is a plane perpendicular to 4 and perpendicular to the surfaces of the substrates 1 and 2.

As can be seen from FIGS. 5A and 5B, the difference between this embodiment and the first embodiment is that the shielding member 17 is provided between the main discharge electrode pair and the main discharge electrode pair. That is the point. The shielding member 17 is a pattern made of a strip-shaped opaque material stretched in the same direction as the stretching direction of the display electrodes 61, 71. The shielding member 17 is arranged so as to cover at least a part of the upper surface of the barrier rib 11 formed in a grid shape and extending in the same direction as the extending direction of the display electrodes 61, 71 when viewed from the upper part of the front substrate. Has been done.

The shield member 17 is made of the same material as the bus electrodes 62 and 72 in this embodiment. This shielding member 1
7 can be formed simultaneously with the formation of the bus electrodes 62 and 72 by changing the mask used when photo-etching the Cr / Cu / Cr laminated film in the above step (1). Therefore, even if the shielding member 17 is provided, the manufacturing process does not become long. The other configurations and manufacturing methods are the same as those in the first embodiment.

In this embodiment, the occupied area of the pattern made of the opaque material in the front substrate 1 is larger than that in the first embodiment, and the barrier rib 11 seen through the transparent material when viewed from above the front substrate 1 The upper surface (white in this embodiment) is almost covered with the shielding member 17 and the bus electrodes 62 and 72. Therefore, the quality of the black display state of this embodiment is higher than that of the first embodiment. The shielding member 17 is
Since it is formed so as to overlap the barrier rib 11 that does not contribute to the display, the provision of this shielding member 17 does not reduce the brightness. Therefore, the contrast of the gas discharge display device according to the present embodiment is higher than that of the first embodiment.

<Embodiment 6> A cross section of a gas discharge type color display panel of this embodiment is shown in FIG. Note that FIG. 6A is a sectional view of the display panel cut along a plane parallel to the address electrodes 14 and perpendicular to the surfaces of the substrates 1 and 2. FIG.
6B is a cross-sectional view at the position A in FIG. 6A, and the cut surface is a plane parallel to the surface of the glass plate 4 along the extending direction of the bus electrodes 62 and 192. FIG.
In (b), although the display electrodes 61 and 191 are not cross-sections, they are expressed with a satin pattern for easy viewing. FIG. 6C is a sectional view taken along the line BB ′ of FIG. 6A, and its cut surface is a plane perpendicular to the address electrodes 14 and perpendicular to the surfaces of the substrates 1 and 2.

As can be seen from FIG. 6, the difference between this embodiment and Embodiment 1 is that three main discharge electrodes 6 and 19 are provided for every two display cell columns, and these three main discharges are provided. Electrode 6,
Of the nineteen, one in the center is provided across the two display cell columns. Common electrode for main discharge 1
The bus electrode 192 of No. 9 includes branch members 18b on both sides. The bus electrode 62 of the non-common electrode 6 for main discharge is provided with a branch member 18b on one side, and the side provided with this branch member 18b is arranged toward the common electrode 19 for main discharge. ing. In addition, the strip-shaped member 18a of the bus electrode 192 of each common electrode 19 is formed on a member that partitions the display cells in the barrier rib 11, and the branch-shaped member 18b of each bus electrode 62, 192 is formed in the display cell array. Is formed on the member of the barrier rib 11 that partitions each display cell.

In the present embodiment, the area occupied by the pattern made of the opaque material when viewed from the front side is larger than that in the first embodiment, but the area of the display cell 300 is not changed. This is because every other upper surface of the member along the display cell row of the barrier rib 11 is covered with the strip electrode 18a of the bus electrode 192 of the common electrode 19. Therefore, in the display panel of this embodiment, the quality in the black display state is higher than that of the first embodiment.

Further, in the first embodiment, the opening viewed from the front surface of the main discharge space 100 is partially covered with the bus electrode 72, whereas in the present embodiment, the main discharge common electrode 19 is formed. Since the bus electrode 192 is located on the barrier rib 11, the opening area viewed from the front surface of the main discharge space 100 is large. Therefore, the gas discharge display panel of this embodiment has higher brightness than that of the first embodiment.

As a result, the gas discharge display panel of this embodiment can obtain a higher contrast than that of the first embodiment. Further, in the case of this embodiment, the number of electrodes of the front substrate 1 is smaller than that of the first embodiment, and there is an effect that it is easy to manufacture.

In this embodiment, the display electrode 191 is
The display electrode 191 does not necessarily have to be the common electrode although it is a common electrode extending over the display cell row, and the bus electrode 192 may be the common electrode. Further, in the panel of this example, the electrode structure of the back substrate is the same as that of Example 1, but the effects of this example can be obtained regardless of the electrode structure of the back substrate. The structure of 4 does not matter.

The display panel of this embodiment is the same as that of the fifth embodiment.
The display panel is inferior in the black display state to the display panel, but is excellent in the brightness.

Example 7 A cross section of a gas discharge type color display panel of this example is shown in FIG. Note that FIG. 7A is a sectional view of the display panel cut along a plane parallel to the address electrodes 14 and perpendicular to the surfaces of the substrates 1 and 2. FIG.
7B is a cross-sectional view at the position A in FIG. 7A, and the cut surface is a plane parallel to the surface of the glass plate 4 along the extending direction of the bus electrodes 62 and 192. FIG.
In (b), although the display electrodes 61 and 191 and the shielding member 17 are not cross-sections, they are expressed with a satin pattern for easy viewing. FIG. 7C shows B of FIG. 7A.
It is a cross-sectional view at the position of -B ', and its cut surface is a plane perpendicular to the address electrodes 14 and perpendicular to the surfaces of the substrates 1 and 2.

As can be seen from FIGS. 7A and 7B, the difference between this embodiment and Embodiment 6 is that the non-common electrode 6 for main discharge and the non-common electrode 6 of the adjacent display cell are different. Between,
By providing the shielding member 17, the upper surface of the barrier rib 11 which was visible from the front surface in the sixth embodiment is covered. The other configuration and manufacturing method are the same as in the sixth embodiment.

In the present embodiment, the area occupied by the pattern made of the opaque material when viewed from the front is wider than that of the sixth embodiment, but the area of the display cell 300 is not changed. This is because the upper surfaces of the members along the display cell rows of the barrier ribs 11 are all the strip electrodes 1 of the bus electrode 192.
This is because it is covered with 8a or the shielding member 17. Therefore, in the display panel of this embodiment, the quality in the black display state is higher than that of the sixth embodiment. In addition, the shielding member 17
Does not reduce the opening area of the main discharge space 100 when viewed from the front surface, so that the provision of the shielding member 17 does not reduce the brightness. Therefore, the contrast of the gas discharge display panel of the present embodiment is higher than that of the sixth embodiment.

Comparing the display panel of the present embodiment with the display panel of the fifth embodiment, which also includes the shielding member 17, the occupying area of the shielding member 17 viewed from the front surface is the same, but in the present embodiment, Since the bus electrode 192 of the discharge common electrode 19 is located on the barrier rib 11, the opening area on the front surface side of the main discharge space 100 is wider in this embodiment. Therefore, the gas discharge display panel of the present embodiment has higher brightness than the panel of the fifth embodiment, and therefore the contrast is also high. The shielding member 17 is similar to the fifth embodiment in that the bus electrodes 62,
Since they are simultaneously formed in the forming step of 192, the number of manufacturing steps of this embodiment is the same as that of the sixth embodiment.

<Embodiment 8> A cross section of a gas discharge type color display panel of this embodiment is shown in FIG. Note that FIG. 8A is a sectional view of the display panel cut along a plane parallel to the address electrodes 14 and perpendicular to the surfaces of the substrates 1 and 2. FIG.
FIG. 8B is a cross-sectional view at the position A in FIG. 8A, and the cut surface is a plane parallel to the surface of the glass plate 4 along the extending direction of the bus electrodes 62 and 192. FIG.
In (b), although the display electrodes 61 and 191 are not cross-sections, they are expressed with a satin pattern for easy viewing. FIG. 8C is a sectional view taken along the line BB ′ in FIG. 8A, and the cut surface is a plane perpendicular to the address electrodes 14 and perpendicular to the surfaces of the substrates 1 and 2.

The difference between this embodiment and the first embodiment is that, as can be seen from FIG. 8, three main discharge electrodes 6 and 19 are provided for each display cell column. Electrodes 6,1
Two of the electrodes 19 on both sides of the column 9 are common to the main discharge electrodes 19 of the adjacent display cell columns. In this embodiment, the bus electrodes 62 and 192 are respectively connected to the branch member 1
8b is provided on both sides of the strip-shaped member 18a. The other configurations and manufacturing methods are the same as those in the first embodiment.

In the present embodiment, the strip-shaped member 18a of the bus electrode 192 of each common electrode 19 is formed on the member for partitioning the display cell rows of the barrier rib 11, and each bus electrode 62,
The branch member 18b of 192 is formed on the member of the barrier rib 11 that partitions each display cell in the display cell row. In addition, the strip-shaped member 1 of the bus electrode 62 of each non-common electrode 6
8a is arranged so as to pass over the opening on the front substrate side of the priming path 15. Therefore, when viewed from the front, almost the entire upper surface of the barrier rib 11 is covered by the bus electrode 6.
Covered by 2,192, priming pass 1
The opening of 5 is covered with the bus electrode 62.

Therefore, the display panel of this embodiment is different from the display panels of Embodiments 1 to 7 in the main discharge space 1.
No. 00 has the largest aperture ratio when viewed from above the front substrate 1, and almost the entire area around the main discharge space 100 that does not contribute to display is covered with the opaque material. For this reason, the highest contrast can be obtained in the present embodiment as compared with the first to seventh embodiments.

Further, in this embodiment, the non-common electrode 6 for main discharge is arranged at the center of the display cell as the main electrode characterizing the display cell column, and is formed on both sides of this common electrode 6.
Main discharge is performed by two electrode pairs. Therefore, according to the configuration of this embodiment, the following effects (a) to (c) can be obtained.

(A) Since two main discharges are generated by the two pairs of electrodes in the main discharge space 100 of each display cell, the ultraviolet rays generated in the main discharge space 100 become strong and the discharge space also expands. Therefore, the amount of light emitted from the phosphor increases, and the brightness and contrast can be further increased as compared with the first embodiment. In this embodiment, in particular, the light emission from the phosphor 12 applied to the side wall of the barrier rib 11 effectively contributes to the display.

(B) In this embodiment, the priming pass 1
Since the opening of 5 is covered by the bus electrode 62,
There is no problem even if the priming path 15 is formed in the center of the main discharge space 100, and the partition substrate 3 can be easily manufactured.

(C) Since the main discharge of each display cell is generated between the two electrode pairs, even if there is a slight displacement between the partition substrate 13 forming the main discharge space 100 and the front substrate 1. The main discharge corresponding to each display cell can be generated, and the partition substrate 3 and the front substrate 1 can be easily assembled.

As in the sixth embodiment, the display electrode 191 of the common electrode 19 does not necessarily have to extend over two cell rows, and the bus electrode 192 need only be a common electrode. Further, similarly to the first embodiment, it is not necessary to make the display electrodes 61 and 191 continuous along the display cell row, but they are formed as independent electrodes for each discharge cell, and the respective display electrodes are connected by the bus electrodes 62 and 192. You may.

<Embodiment 9> FIG. 11 shows a cross section of a gas discharge type color display panel of this embodiment. Note that FIG.
(A) is a cross-sectional view of the display panel cut along a plane parallel to the address electrodes 14 and perpendicular to the surfaces of the substrates 1 and 2. Further, FIG. 11B is a cross-sectional view at the position A in FIG. 11A, and its cut surface is a plane parallel to the surface of the glass plate 4 along the extending direction of the bus electrodes 62 and 192. Is. In FIG. 11B, the display electrodes 61 and 191 are not shown in cross section, but are depicted with a satin pattern for easy viewing. FIG. 11C shows B- of FIG.
It is a cross-sectional view at a position B ′, and its cut surface is a plane perpendicular to the address electrodes 14 and perpendicular to the surfaces of the substrates 1 and 2.

As can be seen from FIG. 11C, this example differs from the example 8 only in the structure of the auxiliary discharge electrode 14 formed on the rear substrate 2. In this embodiment, three auxiliary discharge electrodes 14 are provided for every two auxiliary discharge cell rows, and one of the three auxiliary discharge electrodes 14 is the central one 143 and two auxiliary discharge cells are provided. Equipped across rows.

In the display panel of this embodiment, display cells are selected by applying a voltage between the auxiliary discharge non-common electrode 141 and the main electrode 6. The auxiliary discharge common electrode 143 is provided below the barrier rib 16 that divides the auxiliary discharge space 200 of each display cell in the display cell column.

In the case of this embodiment, since one electrode of the auxiliary discharge electrode pair is shared by the two auxiliary discharge cell columns, the number of auxiliary discharge electrodes can be reduced. In addition, by reducing the size of the common auxiliary discharge electrode 143, the area of the non-common auxiliary discharge electrode 141 that overlaps the priming path 15 can be increased. As a result, the alignment of the priming path 15 is facilitated. For this reason, the size of the priming path 15 can be reduced, so that the contrast can be further increased, and the manufacturing process of the present embodiment is more stable than that of the eighth embodiment.

As can be seen from this example, by using the same main discharge electrode structure as that of Example 8, the same effect as that of Example 8 can be obtained regardless of the structure of the back substrate 2.

<Embodiment 10> A cross section of a gas discharge type color display panel of this embodiment is shown in FIG. FIG.
(A) is a cross-sectional view of the display panel cut along a plane parallel to the address electrodes 14 and perpendicular to the surfaces of the substrates 1 and 2. 12B is a cross-sectional view taken along the line A in FIG. 12A, and its cut surface is a plane parallel to the surface of the glass plate 4 along the extending direction of the bus electrodes 62 and 192. Is. Although the display electrodes 61 and 191 are not cross-sections in FIG. 12B, they are represented by adding a satin pattern for easy viewing. FIG. 12C shows B- in FIG.
It is a cross-sectional view at a position B ′, and its cut surface is a plane perpendicular to the address electrodes 14 and perpendicular to the surfaces of the substrates 1 and 2.

As can be seen from FIG. 12, the display panel of the present embodiment includes a front substrate 1 similar to that of the eighth embodiment, a partition substrate 3 similar to that of the first embodiment, and a rear substrate 2 similar to that of the third embodiment. Has a laminated structure. In this embodiment, the same high contrast as that of the eighth embodiment can be obtained, and further, the same effect as that of the third embodiment can be obtained by generating the auxiliary discharge between the two pairs of auxiliary discharge electrode pairs.

<Embodiment 11> FIG. 13 shows a cross section of a gas discharge type color display panel of this embodiment. Note that FIG.
(A) is a cross-sectional view of the display panel cut along a plane parallel to the address electrodes 141 and perpendicular to the surfaces of the substrates 1 and 2. 13B is a cross-sectional view taken along the line A in FIG. 13A, and its cut surface is a plane parallel to the surface of the glass plate 4 along the extending direction of the bus electrodes 62 and 192. Is. In FIG. 13B, the display electrodes 61 and 191 are not shown in cross section, but are depicted with a satin pattern for easy viewing. FIG. 13C shows B- in FIG.
It is a cross-sectional view at the position of B ′, and its cut surface is a plane perpendicular to the address electrodes 141 and perpendicular to the surfaces of the substrates 1 and 2.

As can be seen from FIG. 12, the display panel of this embodiment includes a front substrate 1 similar to that of the eighth embodiment, a partition substrate 3 similar to that of the first embodiment, and a rear substrate 2 similar to that of the fourth embodiment. Has a laminated structure. In this embodiment, the same high contrast as that of the eighth embodiment can be obtained, and further, as in the case of the fourth embodiment, the auxiliary discharge electrode 14 for intersecting the auxiliary discharge is provided.
The effect associated with generating between 1,144 pairs is obtained.

<Embodiment 12> In the above Embodiments 1 to 11, the example in which the present invention is applied to the gas discharge type display panel having the barrier ribs 13 has been described. The present invention can be applied to a gas discharge type display panel that does not include 13.

14 (a) to 14 (c) are sectional views of the gas discharge type color display panel of this embodiment. FIG. 14 (a)
FIG. 4 is a cross-sectional view when a part of the display panel of this embodiment is cut along a plane parallel to the address electrodes 14 and perpendicular to the surfaces of the substrates 1 and 2. In addition, FIG. 14B shows A of FIG.
Is a cross-sectional view at the position of, and its cut surface is a plane perpendicular to the address electrodes 14 and perpendicular to the surfaces of the substrates 1 and 2. FIG. 14C is a cross-sectional view at the position B in FIG. 14A, and its cut surface is a plane perpendicular to the address electrodes 14 and perpendicular to the surfaces of the substrates 1 and 2. Note that FIG.
In (c), only the cross section is shown, and the illustration of the structure that may be seen in the back of the screen is omitted.

As shown in FIGS. 14B and 14C,
A display cell 300 is formed between the substrates 1 and 2 for each set of display electrodes 61 and 71, and a discharge space 3f is formed by the substrates 1 and 2 and the barrier rib 3a. A phosphor layer 12 is formed inside the display cell. A discharge gas is filled in the space 3f in the cell.
In the display panel of the present embodiment, the barrier ribs 3a are in the shape of parallel rods, and the discharge space 3f of each display cell in the auxiliary discharge cell row is the same as that shown in FIG.
Not separated by.

In addition, the bus electrode 6 of the display panel of this embodiment.
As shown in FIG.
The bus electrodes 62 and 72 have the same shape and form the frame of the display cell 300 as in the first embodiment. Therefore, this frame suppresses the display bleeding and color mixture, and has a high quality in the black display state as compared with the conventional display panel shown in FIG. 10, so that a high contrast is obtained. Also,
By extending the branch member 18b of the low-resistance bus electrodes 62 and 72 toward the counter electrode on the barrier rib 3a, it is possible to obtain an effect of reducing the resistance value of the entire display electrodes 6 and 7.

The display panel of this embodiment does not include the partition substrate 3. Therefore, a method of manufacturing the display panel of this embodiment will be described below.

First, a predetermined pattern is printed with a silver paste by a thick film printing method on a rear glass substrate 5 made of soda lime glass or the like that has been washed with a neutral detergent or the like, and the temperature is 100 to 150 ° C. After drying at temperature, 500-6
By firing at a temperature of 00 ° C., the address electrode 14
Was formed.

On this substrate, a barrier rib forming paste is printed in a predetermined pattern by a thick film printing method, and 100
Dried at a temperature of ~ 150 ° C. Since the barrier ribs 3a are required to be thick, printing and drying of this barrier rib forming paste is repeated a plurality of times and then 500 to 600 is obtained.
The barrier ribs 3a were formed by firing at a temperature of ° C.

Further, a red, blue, or green phosphor paste is thick-film printed on the barrier rib side surface forming the inner wall of each discharge cell formed by the barrier rib 3a, the surface of the glass plate 5, and the surface of the address electrode 14. Printing using a method and drying at a temperature of 100-150 ° C., then 500
The phosphor layer 12 was formed by baking at ˜600 ° C.

Finally, the back substrate 2 having the barrier ribs 3a and the phosphor layer 12 manufactured as described above and the front substrate manufactured in the same manner as in Example 1 are aligned and opposed to each other. Gas was enclosed in the same manner as the assembly process of Example 1.

Although the address electrodes 14 are formed by the thick film printing method in this embodiment, they are formed by the vacuum evaporation method such as the sputtering method or the electron beam evaporation method as shown in the first to eleventh embodiments. You may. The material of the address electrode 14 may be copper or aluminum, or a material in which these are sandwiched by refractory metals such as chromium, titanium, nickel, tungsten, and molybdenum. Further, the barrier rib 3a is manufactured by repeating printing, drying and firing of a thick film paste. The thick film paste is applied thickly on the entire surface, and a resist film of a predetermined pattern made of a photosensitive resin is formed on the thick film paste. Alternatively, unnecessary regions may be removed by sandblasting or the like, or the barrier rib paste may be embedded after forming the resist film.
Further, the formation of the phosphor layer 12 is not limited to the thick film printing method, and a spray method or the like may be used.

<Embodiment 13> FIGS. 15A to 15C are sectional views of a gas discharge type color display panel of this embodiment. FIG. 15A is a sectional view when a part of the display panel of this embodiment is cut along a plane parallel to the address electrode 14 and perpendicular to the surfaces of the substrates 1 and 2. FIG. 15 (b)
15A is a cross-sectional view at a position A in FIG. 15A, and a cut surface thereof is a plane perpendicular to the address electrodes 14 and perpendicular to the surfaces of the substrates 1 and 2. Although the display electrodes 61, 191 and the shielding member 17 are not cross-sections in FIG. 7B,
In order to make the figure easier to see, it is expressed with a satin pattern.
FIG. 15C is a cross-sectional view at the position of B in FIG. 15A, and its cut surface is a plane perpendicular to the address electrodes 14 and perpendicular to the surfaces of the substrates 1 and 2. Note that FIG.
In (c), only the cross section is shown, and the illustration of the structure that may be seen in the back of the screen is omitted.

The display panel of the present embodiment is different from that of the twelfth embodiment only in that it has the same shielding member 17 as that of the fifth embodiment. Also in the present example, as in the case of Example 5, the effect of improving the quality in the black display state without lowering the brightness was obtained by including the shielding member 17.

<Embodiment 14> FIGS. 16A to 16C are sectional views of the gas discharge type color display panel of the present embodiment. FIG. 16A is a sectional view when a part of the display panel of this embodiment is cut along a plane parallel to the address electrodes 14 and perpendicular to the surfaces of the substrates 1 and 2. FIG. 16 (b)
16A is a cross-sectional view taken along the line A in FIG. 16A, and its cut surface is a plane perpendicular to the address electrodes 14 and perpendicular to the surfaces of the substrates 1 and 2. FIG. 16C shows B of FIG. 16A.
Is a cross-sectional view at the position of, and its cut surface is a plane perpendicular to the address electrodes 14 and perpendicular to the surfaces of the substrates 1 and 2. 16 (a) to 16 (c), only the cross section is shown, and the illustration of the configuration that may be seen in the back of the screen is omitted.

The display panel of this example is different from that of Example 1 only in that the structure of the main discharge electrode is the same as that of Example 6.
Different from 2. Also in this embodiment, the bus electrode 192 of the common electrode 19 is the barrier rib 3a as in the sixth embodiment.
The effect of improving the quality and brightness of the black display state by covering the upper surface was obtained.

<Embodiment 15> FIGS. 17A to 17C are sectional views of the gas discharge type color display panel of the present embodiment. FIG. 17A is a sectional view when a part of the display panel of this embodiment is cut along a plane parallel to the address electrode 14 and perpendicular to the surfaces of the substrates 1 and 2. Also, FIG. 17 (b)
17A is a cross-sectional view taken along the line A in FIG. 17A, and its cut surface is a plane perpendicular to the address electrodes 14 and perpendicular to the surfaces of the substrates 1 and 2. Although the display electrodes 61, 191 and the shielding member 17 are not cross-sections in FIG. 7B,
In order to make the figure easier to see, it is expressed with a satin pattern.
FIG. 17C is a sectional view taken along the line B in FIG. 17A, and the cut surface is a plane perpendicular to the address electrodes 14 and perpendicular to the surfaces of the substrates 1 and 2. Note that FIG.
In (c), only the cross section is shown, and the illustration of the structure that may be seen in the back of the screen is omitted.

In the display panel of this embodiment, the front substrate 1 is
The display panel according to the twelfth embodiment differs from the display panel according to the twelfth embodiment in that the common electrode 19 and the shielding member 17 are provided as in the seventh embodiment. Also in the present embodiment, as in the case of the seventh embodiment, the effect of improving the quality in the black display state without lowering the brightness by providing the shield member 17 and the one electrode 19 of the main discharge electrode pair are common. The electrode, and the bus electrode 1 of the electrode 19
By covering the upper surface of the barrier rib 3a with 92, the effect of improving the quality and brightness in the black display state was obtained.

<Embodiment 16> FIGS. 18A to 18C are sectional views of the gas discharge type color display panel of the present embodiment. FIG. 18A is a sectional view when a part of the display panel of this embodiment is cut along a plane parallel to the address electrodes 14 and perpendicular to the surfaces of the substrates 1 and 2. FIG. 18 (b)
18A is a cross-sectional view at the position A in FIG. 18A, and the cut surface is a plane perpendicular to the address electrodes 14 and perpendicular to the surfaces of the substrates 1 and 2. FIG. 18C shows B of FIG. 18A.
Is a cross-sectional view at the position of, and its cut surface is a plane perpendicular to the address electrodes 14 and perpendicular to the surfaces of the substrates 1 and 2. Note that in FIGS. 18A to 18C, only the cross section is illustrated, and the illustration of the configuration that may be seen in the back of the screen is omitted.

In the display panel of this embodiment, the front substrate 1 is
The display panel according to the twelfth embodiment is different from the display panel according to the twelfth embodiment in that each display cell column includes two common electrodes 19 and one non-common electrode 6, as in the eighth embodiment. Also in this embodiment, the main discharge is generated by the two pairs of main discharge electrodes to increase the light emission amount, increase the aperture ratio of the discharge space 3f, and stabilize the manufacturing process, and the bus electrode 192 of the common electrode 19.
By covering the upper surface of the barrier rib 3a with the effect of enhancing the contrast such as the improvement of the quality and brightness in the black display state, the manufacturing process of providing two main discharge electrode pairs in one discharge cell row The effect of stability was also obtained.

<Embodiment 17> A cross section of a gas discharge type color display panel of the present embodiment is shown in FIG. Note that FIG.
(A) is a cross-sectional view of the display panel cut along a plane parallel to the address electrodes 14 and perpendicular to the surfaces of the substrates 1 and 2. 19B is a cross-sectional view taken along the line A in FIG. 19A, and its cut surface is a plane parallel to the surface of the glass plate 4 along the extending direction of the bus electrodes 62 and 192. Is. In addition, in FIG. 19B, the display electrodes 61 and 191 are not shown in a cross section, but are shown by hatching for easy viewing. FIG. 19C shows B- of FIG. 19A.
It is a cross-sectional view at a position B ′, and its cut surface is a plane perpendicular to the address electrodes 14 and perpendicular to the surfaces of the substrates 1 and 2.

As can be seen from FIG. 19, the difference between this embodiment and the tenth embodiment is that the display electrodes (transparent electrodes) 61, 19 are different.
1 and the bus electrodes 62 and 192 are stacked in reverse order. That is, the front substrate 1 of Example 10 was
Glass plate 4, display electrodes 61, 191, bus electrodes 62, 1
92, the dielectric layer 8 and the protective film 9 are laminated in this order, whereas the front substrate 1 of this embodiment has the glass plate 4, the bus electrodes 62 and 192, the display electrodes 61 and 191, and the dielectric layer 8. ,
The protective film 9 is laminated in this order.

A cross section of the front substrate 1 in this embodiment is shown in FIG. However, in FIG. 20A, the illustration of the dielectric layer 8 and the protective film 9 is omitted. The bus electrodes 62 and 192 of this embodiment are directly formed on the surface of the glass plate 4,
Similar to the tenth embodiment, the first refractory metal layers 621 and 192 are formed.
1, a low resistance metal layer 622, 1922, and a second high melting point metal layer 623, 1923 are laminated in this order. In this embodiment, the first refractory metal layers 621 and 1921 and the second refractory metal layers 623 and 1 are used.
923 is made of Cr, and has a low resistance metal layer 622, 1922.
Is made of Cu.

When the bus electrodes 62 and 72 function as a black matrix (black mask) for partitioning the front surface of the display panel into the display cells 300, reflection of incident light from the front substrate 1 side on the bus electrode surface is reduced. It is preferable to improve the quality in the black display state. Therefore,
In this embodiment, the surface of the first refractory metal layers 621 and 1921 on the glass plate 4 side is covered with an oxide film of the refractory metal. As a result, the metallic luster on the surfaces of the bus electrodes 62, 192 disappears, and reflection is suppressed, so that the quality of the display screen is improved.

When the thin film layers forming the bus electrodes 62, 72 are thicker than the thin film layers forming the display electrodes (transparent electrodes) 61, 71, the bus electrode patterns 62, 7 are formed.
The coverage of the transparent electrode patterns 61 and 71 with respect to No. 2 is not good, and step breakage or large resistance may occur. In such a case, the glass plate 4, the display electrodes 61, 191, and the bus electrodes 62, 192 must be laminated in this order, as in the tenth embodiment. Therefore, as shown in FIG. 20B, shielding films 620 and 720 made of a refractory metal oxide are formed between the glass plate 4 and the display electrodes 61 and 191 and the shielding films 620 and 72 are formed.
The front surfaces of the bus electrodes 62 and 192 may be covered with 0. Here, the film thicknesses of the shielding films 620 and 720 are the refractive index and the plate thickness of the front glass plate 4, the ITO films 61 and 191.
The reflectance may be determined to be small based on the refractive index and the film thickness, the refractive index of the refractory metal, and the refractive index of the refractory metal oxide film.

The display panel of this example is different from the manufacturing process described in Example 1 not only in the pattern of the electrodes but also in the process of forming the electrodes of the front substrate 1 (process (1)). Therefore, next, the electrode forming step of the front substrate 1 is performed.
This will be described with reference to FIG.

First, soda lime glass plate 4 (width: about 85 cm, depth: about 70 c, which was washed with a neutral detergent or the like.
m, thickness: about 2.8 mm), on one of the front and back surfaces, a chromium oxide film and a chromium film 7210 and a copper film 7 are formed by a sputtering method (other film forming methods such as an electron beam evaporation method may be used).
220 and a chrome film 7230 were formed in this order. Thereby, the interface with the glass plate 4 is an oxide film C
An r / Cu / Cr laminated film 21 was formed (FIG. 21).
(A)). The thickness of the uppermost chromium oxide film is preferably determined so that the reflectance is small when viewed from the front side of the substrate. This laminated film 21 was patterned by a photoetching method similar to the method used in step (1) of Example 1 to form bus electrodes 62 and 192 on the surface of the glass plate 4 (FIG. 21 (B)).

Next, an ITO film (tin oxide (SnO 2) film) is formed on the surface of the glass plate 4 by a sputtering method (an electron beam evaporation method or another film forming method may be used) so as to cover the bus electrodes 62 and 192. Other transparent conductive film such as film may be used)
22 was formed (FIG. 21 (C)). This ITO film 22
Is patterned by the photoetching method similar to the method used in the step (1) of Example 1, and the display electrode 6 is formed on the surface of the glass plate 4 so as to cover the bus electrodes 62 and 192.
1, 191 were formed (FIG. 21 (D)).

Since the main discharge electrode was formed on the surface of the glass plate 4 as described above, the dielectric layer 8 and the protective layer 9 were formed on the surface of the glass plate 4 so as to cover the electrode, in the same manner as in Example 1. Then, the front substrate 1 of this example was manufactured.

In this embodiment, since the bus electrodes 62, 192 are formed before the display electrodes 61, 191 are formed, a refractory metal oxide film is formed on the upper surfaces (bottom surfaces on the front surface side of the substrates) of the bus electrodes 62, 192. It can be easily formed.

<Embodiment 18> FIG. 26 shows a block diagram of a display unit using a gas discharge display panel to which the present invention is applied. In the figure, 1100 is an address driver and 1200 is a scan driver.
Is a pulse generator, 1400 is a level shifter,
Reference numeral 1500 indicates a control unit, 1600 indicates an auto power control circuit, and 1700 indicates a DC / DC converter. In this embodiment, a display cell is selected by the address driver 1100 and the scan driver 1200, and a main discharge for display is generated by the voltage generated by the pulse generator 1300. These controls are
It is done by the control circuit. The transfer of the control signal from the control circuit 1500 to the scan driver 1200 is performed via the level shifter 1400. The overpower control circuit detects a high-voltage power supply current and sends out a signal to reduce the number of sustain discharge pulses when the voltage exceeds a specified value. The DC / DC converter 1700
Is to generate an internal voltage for a drive circuit from a voltage supplied from an external circuit.

In the display unit shown in this embodiment, since the gas discharge type display panel 1000 according to the present invention, which can increase the contrast of display image quality, is used, there is an effect that a clear image with high contrast can be obtained.

[0184]

In the gas discharge type display panel according to the present invention, the portion where the display cannot be controlled around the display cell can be covered with the pattern made of the opaque material such as the bus electrode, so that the quality of the black display state can be improved. .

By arranging the pattern made of the bus electrode and the opaque material so as to overlap the barrier rib when viewed from the front substrate side, the aperture ratio of the display screen can be increased, and the light emitted from the phosphor effective for display can be obtained. Since it can be efficiently emitted to the outside through the front substrate, the brightness can be increased. As described above, according to the present invention, it is possible to obtain the effect of providing a gas discharge type display panel having high contrast.

Further, the conventional bus electrode is composed only of the strip portion in the present invention, but in the present invention, it has a branch portion, and the branch portion is arranged in the direction in which the address electrode extends. It is provided in a cell separation region between cells. If the cell separation is performed by the barrier rib, the branch portion exists on this barrier rib. As a result, each display cell is surrounded by an opaque bus electrode, so that color bleeding and color mixing can be prevented, and the resistance of the bus electrode can be reduced. As a result, since the aperture ratio can be increased, the brightness is increased, and the brightness in the dark state can be decreased, so that the contrast is increased.

[Brief description of drawings]

FIG. 1 is a partially enlarged sectional view of a gas discharge type display panel of Example 1.

FIG. 2 is a partially enlarged sectional view of a gas discharge type display panel of Example 2.

FIG. 3 is a partial enlarged cross-sectional view of a gas discharge type display panel of Example 3.

FIG. 4 is a partially enlarged sectional view of a gas discharge type display panel of Example 4.

FIG. 5 is a partially enlarged sectional view of a gas discharge type display panel of Example 5.

FIG. 6 is a partially enlarged sectional view of a gas discharge type display panel of Example 6.

FIG. 7 is a partial enlarged cross-sectional view of a gas discharge type display panel of Example 7.

FIG. 8 is a partial enlarged cross-sectional view of a gas discharge type display panel of Example 8.

FIG. 9 is a partial perspective view (schematic diagram) showing a conventional example of a gas discharge type display panel.

FIG. 10 is a partially enlarged sectional view showing a conventional example of a gas discharge type display panel.

FIG. 11 is a partially enlarged cross-sectional view of a gas discharge type display panel of Example 9.

FIG. 12 is a partially enlarged sectional view of a gas discharge type display panel of Example 10.

FIG. 13 is a partial enlarged cross-sectional view of a gas discharge type display panel of Example 11.

FIG. 14 is a partially enlarged sectional view of a gas discharge type display panel of Example 12.

FIG. 15 is a partial enlarged cross-sectional view of a gas discharge type display panel of Example 13.

FIG. 16 is a partially enlarged cross-sectional view of a gas discharge type display panel of Example 14.

FIG. 17 is a partially enlarged cross-sectional view of a gas discharge type display panel of Example 15.

FIG. 18 is a partial enlarged cross-sectional view of a gas discharge type display panel of Example 16.

FIG. 19 is a partial enlarged cross-sectional view of a gas discharge type display panel of Example 17.

FIG. 20 is a partial enlarged cross-sectional view of a front substrate of Example 17 and its application example.

FIG. 21 is an explanatory diagram showing the manufacturing process of the main discharge electrode of Example 17;

FIG. 22 is a partially enlarged cross-sectional view showing the structure of barrier ribs in a conventional example of a gas discharge type display panel.

FIG. 23 is an explanatory diagram showing the manufacturing process of the gas discharge display panel of Example 1.

FIG. 24 is an explanatory diagram showing the manufacturing process of the gas discharge display panel of Example 4;

FIG. 25 is a diagram showing a shape of a bus electrode of a gas discharge type display panel.

FIG. 26 is a diagram showing a block configuration of a display unit.

[Description of Reference Signs] 1 ... Front substrate, 2 ... Back substrate, 3 ... Partition substrate, 3a ... Barrier rib, 3f ... Discharge space, 4 ... Front glass plate, 5 ... Back glass plate, 6 ... Non-common electrode for main discharge, 7 ... Electrodes on front substrate, 8 ... Dielectric layer, 9 ... Protective layer (MgO), 11 ... Barrier ribs on front substrate side, 12 ... Phosphor layer, 13 ... Partition wall, 1
4 ... Auxiliary discharge electrode, 15 ... Priming path, 16 ...
Rear substrate side barrier ribs, 17 ... Shielding member, 18a ... Bus electrode strip member, 18b ... Bus electrode branch member, 19 ...
Common electrode for main discharge, 21 ... Laminated film for bus electrode, 22 ... ITO film for display electrode, 61, 71, 191 ... Display electrode, 6
2, 72, 192 ... Bus electrode, 100 ... Main discharge space, 1
41, 142 ... Non-common address electrode, 143 ... Common address electrode, 144 ... Trigger electrode, 200 ... Auxiliary discharge space, 300 ... Display cell surface.

 ─────────────────────────────────────────────────── ─── Continuation of the front page (72) Inventor Teruo Takai 292 Yoshida-cho, Totsuka-ku, Yokohama-shi, Kanagawa Incorporated company Hitachi Ltd.

Claims (23)

[Claims] 1. A front substrate provided with a main discharge electrode group for performing display, and an auxiliary discharge for selecting display cells to be emitted, which are arranged facing the front substrate with a space therebetween. The main discharge includes: a rear substrate including an electrode group; a barrier rib that divides a gap between the front substrate and the rear substrate into display cells; and a phosphor layer formed on an inner wall of a space where the main discharge is performed. The electrode group for use is composed of a plurality of main discharge electrodes having the same extending direction as each other, and the main discharge electrode is a strip electrode made of a transparent material and extending parallel to the main surface of the front substrate. A display electrode and a bus electrode provided on each of the display electrodes, one surface of which is in contact with the display electrode, the front and back surfaces of the display electrode are provided, and the auxiliary discharge electrode, the bus electrode is stretched in a stretching direction of the display electrode A belt-shaped member, Gas discharge display panel, characterized in that it comprises a plurality of branch members extending from Jo member. 2. The band member according to claim 1, when viewed from the front substrate side along the stacking direction of the gas discharge display panel, the strip-shaped member is provided between display cell rows along the extending direction of the display electrodes. The gas discharge type display panel is characterized in that the branch member is provided so as to separate display cells adjacent to each other in the extending direction of the display electrodes of the display cell row. 3. The branch member of the bus electrode according to claim 1, wherein the barrier rib has a first member that divides each display cell belonging to a display cell row along the extending direction of the display electrode. When viewed from the front substrate side along the stacking direction of the gas discharge display panel, at least a part of the barrier rib appears to overlap the bottom face of the first member of the first member on the front substrate side. Gas discharge type display panel. 4. The barrier rib according to claim 1, wherein the barrier rib has a second member for partitioning a display cell row along an extending direction of the display electrode and an adjacent display cell row, When viewed from the front substrate side along the stacking direction of the gas discharge display panel, the strip-shaped member appears to at least partially overlap with the bottom face of the second member of the barrier rib on the front substrate side. Gas discharge type display panel characterized by. 5. The front rib according to claim 1, wherein the barrier rib has a second member that separates a display cell row along an extending direction of the display electrode and an adjacent display cell row. Further comprising a plurality of shielding members that are parallel to the main surface and that are made of an opaque material and that extend in the extending direction of the display electrodes, wherein the shielding members are arranged in the stacking direction of the gas discharge display panel. Then, when viewed from the front substrate side, the gas discharge display panel is characterized in that at least a part of the barrier rib overlaps with the bottom face of the second member on the front substrate side. 6. The gas discharge display panel according to claim 5, wherein the shielding member is made of the same material as the bus electrode. 7. A partition wall for separating a discharge space for separating a space inside the discharge cell into a main discharge space on the front substrate side and an auxiliary discharge space on the rear substrate side, further comprising: The gas discharge display panel is characterized in that the discharge space separating partition wall has a through hole for communicating the main discharge space and the auxiliary discharge space. 8. The bus electrode according to claim 7, covering the opening of the through hole on the front substrate side when viewed from the front substrate side along the stacking direction of the gas discharge display panel. Gas discharge type display panel characterized by. 9. The main discharge electrode according to claim 1, wherein two main discharge electrodes are provided for each row of the display cells along the extending direction of the display electrodes, and the branch-shaped member of the bus electrode is the bus electrode. The bus electrodes of the two main discharge electrodes, which are provided on one side of the strip-shaped member of the electrode and correspond to one display cell row, are arranged to face each other with the side provided with the branch-shaped member facing inward. A gas discharge type display panel characterized by being provided. 10. The main discharge electrode according to claim 1, wherein three main discharge electrodes are provided for every two rows of the display cells along the extending direction of the display electrode. , The center one is the above 2
A gas discharge type display panel, which is provided so as to extend over a display cell column. 11. The bus electrode of the central main discharge electrode among the three main discharge electrodes is provided with the branch members on both sides, and the bus electrode of the other main discharge electrode is formed. Is provided with the branch member on one side, and the bus electrode of the other main discharge electrode is arranged with the side provided with the branch member facing the main discharge electrode at the center. A gas discharge type display panel characterized in that 12. The display device according to claim 1, wherein the main discharge electrode is provided for each column of the display cells along the extending direction of the display electrode, and each main discharge electrode has two columns of the display cells. A gas discharge type display panel characterized by being provided across rows. 13. The barrier rib according to claim 10, further comprising a second member for partitioning a display cell row along the extending direction of the display electrode and an adjacent display cell row, The strip-shaped member of the bus electrode of the main discharge electrode provided across the display cell column of the column is the barrier rib when viewed from the front substrate side along the stacking direction of the gas discharge display panel. 2. The gas discharge display panel, wherein at least a part of the second member of the second member on the front substrate side appears to overlap. 14. The main discharge electrode according to claim 1, wherein three main discharge electrodes are provided for each display cell column, and two of the three main discharge electrodes on both sides are adjacent display cells. A gas discharge type display panel, characterized in that it is an electrode common to the main discharge electrodes of the column. 15. The gas discharge display panel according to claim 12, wherein the branch member of the bus electrode is provided on both sides of the strip member of the bus electrode. 16. A discharge space separating partition wall for separating the space in the discharge cell into a main discharge space on the front substrate side and an auxiliary discharge space on the rear substrate side, further comprising: The discharge space separating partition wall has a through hole for communicating the main discharge space and the auxiliary discharge space, and the barrier rib is a display cell row along the extending direction of the display electrode. And a second member that separates adjacent display cell rows from each other, and the strip-shaped member of the bus electrodes of the main discharge electrodes on both sides of the three main discharge electrodes is the gas discharge type. When viewed from the front substrate side along the stacking direction of the display panel, at least a part of the barrier rib is seen to overlap with the bottom surface of the second member of the second substrate, and the three main discharge electrodes are provided. Of the central main discharge electrode bus The gas discharge display characterized in that the strip-shaped member of the pole covers the opening of the through hole on the front substrate side when viewed from the front substrate side along the stacking direction of the gas discharge display panel. panel. 17. The bus electrode according to claim 1, wherein the bus electrode is formed of a composite film in which a first refractory metal, copper or aluminum, and a second refractory metal are laminated in this order. The high-melting-point metal and the second high-melting-point metal are each a metal selected from the group consisting of chromium, titanium, nickel, tungsten, and molybdenum, or an alloy of these metals. . 18. The front surface and the back surface of the bus electrode according to claim 17, wherein the surface of the bus electrode facing the outside of the front substrate is provided with the oxide film of the first or second refractory metal. Gas discharge type display panel. 19. The gas discharge display panel according to claim 1, wherein the main discharge electrode is formed on a surface of a transparent insulating material having a roughened surface. 20. The front substrate according to claim 1, wherein at least a base material made of a transparent material, the bus electrodes, the display electrodes, and the dielectric layer are laminated in this order. Gas discharge type display panel characterized by. 21. A step of forming a front substrate provided with a main discharge electrode group for displaying, a step of forming a rear substrate provided with an auxiliary discharge electrode group for selecting a display cell to emit light, A step of forming barrier ribs for dividing a gap between the front substrate and the back substrate into display cells; a step of forming a phosphor layer on an inner wall of a space where the main discharge is performed; and assembling the front substrate and the back substrate In the method for manufacturing a gas discharge display panel having an assembling step, the step of forming the front substrate includes the step of forming a substrate made of a transparent material, the bus electrode, the display electrode, and the dielectric layer. A method of manufacturing a gas discharge type display panel, comprising a step of stacking layers in order. 22. A front substrate provided with a main discharge electrode group for performing display, and an auxiliary discharge electrode for selecting a display cell to emit light, which is arranged to face the front substrate with a space therebetween. In a gas discharge display panel comprising a rear substrate having a group and a phosphor layer formed on an inner wall of a space where the main discharge is performed, the main discharge electrode includes a bus electrode made of an opaque material, The gas discharge is characterized in that the bus electrode forms a frame that at least partially surrounds the periphery of each display cell when viewed from the front substrate side along the stacking direction of the gas discharge display panel. Type display panel. 23. A display unit comprising the gas discharge type display panel according to claim 1.