JP2000106089A - A.c. surface discharge type plasma display device, a.c. surface discharge type plasma display panel, its manufacture, and substrate for a.c. surface discharge type plasma display panel - Google Patents

Abstract

PROBLEM TO BE SOLVED: To securely generate gas discharge in the entire discharge space in aging and to reduce impurities remaining in the discharge space by providing dummy electrodes arranged parallel with one another for at least one of multiple scanning electrode couples and by not covering one end of each of the dummy electrodes with a dielectric layer. SOLUTION: Aging dummy electrodes 13 each comprise one transparent electrode body film or one metal film, and is arranged for every couple of multiple scanning electrode couples (X, Y). Each of the dummy electrodes 13 straddles respective picture elements of adjacent scanning lines, and each discharge space 10 right under them which is defined by adjacent barrier plate 7 abuts on boundary spaces between identically-colored unitary light emission regions EU adjacent to each other. In order to continue gas discharge even if local disconnection occurs in the dummy electrode 13 in aging, an external connection terminal part on the common electrode Y side of the dummy electrode 13 is exposed without covering it with a dielectric layer like one end of the electrode 13 and led to the outside of a frame of a low melting point glass layer.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an AC surface discharge type plasma display panel (hereinafter abbreviated as PDP) used for personal computers and office workstations, which are remarkably progressing in recent years, and wall-mounted televisions which are expected to develop in the future. ) Related to technology.

[0002]

FIG. 13 shows, for example, US Pat. No. 5,661,500.
FIG. 14 is a schematic plan view of an AC surface discharge type PDP having a three-electrode structure described in FIG. 1, and FIG. 14 is an exploded perspective view showing a cross-sectional structure of one pixel of the PDP shown in FIG.

First, reference numerals in FIG. 14 indicate the following. That is, 1 is a first glass substrate on the display surface side, (X, Y) is a pair of scanning electrodes extending adjacent to each other in the horizontal direction, 4 is a dielectric layer for AC driving,
Is a discharge protection film, 6 is a second glass substrate on the back side, 7
A plurality of partition walls extending in a direction perpendicular to the scanning electrode pair (X, Y) and defining the interval dimension of the discharge space 10 by contact with the discharge protection film 5, W is provided between the partition walls 7; Address electrodes, 9R, 9G, 9B are R (red), G
(Green) and B (blue) phosphors of three primary colors. The internal discharge space 10 is partitioned by the partition walls 7 for each unit light emitting region EU, and the discharge spaces 10 include phosphors 9R, 9G, 9
A neon-xenon mixed gas is sealed as a discharge gas that emits ultraviolet light for exciting B so as to have a pressure of about 500 (Torr). Since the scanning electrode pairs (X, Y) are arranged on the display surface side, a strip-shaped transparent conductor film (Nesa film: tin oxide) 3 and a metal film (for example, Ag: silver) for supplementing this conductivity are used. 2 is comprised. In addition, the partition 7
The upper layer is a partition wall 8 mixed with a black pigment for improving the display contrast.

In the above PDP, surface discharge occurs at each intersection between the scanning electrode pair (X, Y) and the address electrode (W), and a unit light emitting area EU is defined. This PDP
In this case, a portion corresponding to each unit light emitting region EU can be selectively made to emit light, and full color display can be performed by a combination of three primary colors of R, G, and B.

[0005] As shown in FIG. 13, in a PDP, each pixel EG constituting a display screen is arranged in one direction.
The three primary color phosphors 9R, 9G, and 9B for full-color display are sequentially arranged in association with each of the unit light emitting regions EU. In each of the pixels EG, a scanning electrode pair (X, Y) extending in the arrangement direction of the unit light emitting regions EU is arranged as an electrode for generating a surface discharge.

FIG. 15 shows an overall configuration of an AC surface discharge type plasma display device. In this figure, the scanning electrode pair (X, Y) is represented as a scanning electrode (X1 to Xn) and a common electrode (Y), respectively, and the address electrode (W) is represented as an address electrode (W1 to Wm). For example, in the case of a display having the number of display dots of (H) 640 × (V) 480, n = 480 and m = 1920 = (640 × 3). In FIG. 15, the common electrode (Y) is a Y driver 2
0, and the scanning electrodes (X1 to Xn) are connected to the output terminal of the X driver 21 and the address electrodes (W1 to Wn).
Wm) is connected to the output terminal of the address driver 22. These Y driver 20, X driver 21, and address driver 22 are controlled by control signals from a control circuit 23.

FIG. 16 is a panel configuration diagram schematically showing only the PDP portion extracted from the plasma display device of FIG. As mentioned above, PDP is the first
Is a display panel having a structure in which a discharge space 10 is sandwiched between a glass substrate 1 and a second glass substrate 6. In the main discharge space 10, the first glass substrate 1 and the second glass substrate 6 are provided with a frame-like low melting point glass layer 11 as a sealing material on the surface of one of the substrates, and the two substrates are superposed. 4
It is formed by fusing / integrating by heating to about 00 ° C to 450 ° C. The first and second glass substrates 1, 6
Then, in order to clean the discharge space 10, the discharge space 10 is heated to about 350 ° C., for example.
Then, the discharge gas is filled into the same space 10. The through holes 12 for this purpose are provided in advance at the corners of the second glass substrate 6.

After the discharge gas is filled, the PDP discharges the entire discharge space 10 and performs aging to make the discharge voltage and discharge luminance uniform and stabilize these discharge characteristics. FIG. 17 shows an example of such a PDP aging method. As illustrated in the figure, when aging is performed, for example, with respect to the first glass substrate 1, one end of the scanning electrode (X1 to Xn) and the other end of the common electrode (Y) are clip-type. The scanning electrodes (X1 to Xn) are brought into contact with the first aging short bar 30 and the clip-type second aging short bar 31, and by connecting both short bars 30, 31.
And the common electrode, and the second glass substrate 6 is connected to the address electrodes (W1 to Wm) and the clip-type third
And the aging short bar 32 are connected to each other by contact. In this state, an external AC high voltage generator 33 is connected between the first and second aging short bars 30 and 31 and the third aging short bar 32 which are commonly connected.
A predetermined AC high voltage is applied to discharge the discharge space of the PDP to perform aging.

[0009]

Incidentally, in a PDP, it is desirable to minimize impurities remaining in the discharge space 10 as much as possible. That is, if impurities such as moisture and carbon dioxide gas remain in the discharge space 10, the discharge characteristics become unstable or burn-in (when a certain pattern is displayed on a screen, the same pattern is displayed thereafter). This is because the phenomenon of continuation is more likely to occur. Therefore, in PDP, an impurity is physically and chemically removed by discharge (plasma) (aging process). That is, the aging process of the PDP includes (1) not only stabilization of discharge characteristics due to uniform discharge voltage and discharge luminance, but also (2) further stabilization of discharge characteristics by removing impurities remaining in the discharge space 10. This has the effect of preventing image sticking. In particular, if the cleaning by the discharge is performed during an evacuation process in which the inner wall surface in the discharge space 10 is heated to about 350 ° C. in an active state, it is more effective (generally called aging evacuation).

[0010] However, in the AC surface discharge type PDP having the conventional structure described above or the aging method, even if the aging is performed by discharging the entire discharge space, the discharge space actually aged is shown by a bold line in FIG. This is only the region A0 shown, that is, the region surrounded by the scanning electrode pair (X, Y) in the unit light emitting region Eu. Therefore, impurities such as moisture and carbon dioxide gas remain in a portion other than the region A0, for example, in the region B0, and the discharge characteristics become unstable or burn-in occurs over a long period of use due to the influence of the residue. The problem that it becomes easy occurs.

Such a problem is caused by the above-described A on the reflection side.
In addition to the occurrence of a C-surface discharge type PDP, the same may occur in a transmission type AC surface discharge type PDP.

SUMMARY OF THE INVENTION The present invention has been made to solve the above-mentioned conventional problems, and it is intended to ensure that a gas discharge can be generated in the entire discharge space during aging so that the amount of impurities remaining in the discharge space can be reduced. High performance AC surface discharge type PDP, PDP substrate and PDP with stable discharge characteristics even after long use
It is an object of the present invention to provide a plasma display device using the same.

[0013]

The invention according to claim 1 is a substrate for an AC surface discharge type plasma display, wherein the substrate and the substrate are laid in parallel on a main surface of the substrate, and each pair is formed of a substrate. A plurality of scan electrode pairs having a first scan electrode and a second scan electrode; and the second end facing one end of the first scan electrode and the other end of the first scan electrode of each pair. A dielectric layer formed on the main surface, and a discharge protection film formed on the surface of the dielectric layer, so as to cover the plurality of scan electrode pairs except for the other end of the scan electrode. A dummy electrode laid between the main surface and the surface of the dielectric layer in parallel with at least one of the plurality of scan electrode pairs, and one end of the dummy electrode Is not covered with the dielectric layer.

According to a second aspect of the present invention, in the substrate for an AC surface discharge type plasma display panel according to the first aspect, the dummy electrode is provided for each of the plurality of scanning electrode pairs. It is characterized by.

According to a third aspect of the present invention, in the AC surface discharge type plasma display, the AC surface discharge type plasma display panel substrate according to the second aspect, wherein the dummy electrode is formed on the main surface. It is characterized by the following.

According to a fourth aspect of the present invention, in the substrate for an AC surface discharge type plasma display panel according to the second aspect, the dielectric layer includes the one end of the first scan electrode and the second end. A first dielectric layer formed on the main surface, and a first dielectric layer formed on the surface of the first dielectric layer so as to cover the plurality of scan electrode pairs except for the other end of the scan electrode; A second dielectric layer, the discharge protection film is formed on a surface of the second dielectric layer, and the dummy electrode is formed on the surface of the first dielectric layer. The one end of the dummy electrode is not covered with the second dielectric layer.

According to a fifth aspect of the present invention, in the substrate for an AC surface discharge type plasma display panel according to the second aspect, the other end of the dummy electrode is not covered with the dielectric layer. And

The invention according to claim 6 is the substrate for an AC surface discharge type plasma display panel according to claim 5, wherein the one ends of each of the dummy electrodes are connected to each other, and The other end of each of the dummy electrodes is also connected to each other.

According to a seventh aspect of the present invention, in the substrate for an AC surface discharge type plasma display panel according to any one of the second to sixth aspects, the dummy electrode is blackened.

The invention according to claim 8 relates to an AC surface discharge type plasma display panel, wherein
A first substrate as the substrate for the AC surface discharge type plasma display panel according to any one of the above, and a plurality of address electrodes laid in parallel to each other in a direction orthogonal to the laying direction of the plurality of scan electrode pairs; A plurality of stripe-shaped partitions laid in parallel with each other with respect to the plurality of address electrodes so as to sandwich the plurality of address electrodes, and the address electrodes and the main surface sandwiched by the partition walls adjacent to each other; A second substrate having a phosphor layer formed on the adjacent partition wall;
The substrates are combined so as to face each other while maintaining a predetermined discharge space, and are sealed to each other at their peripheral portions by a low-melting glass layer. The one end of the first scan electrode, The other end of the second scan electrode and the end of the dummy electrode may be out of the frame of the low melting point glass layer.

According to a ninth aspect of the present invention, in the AC surface discharge type plasma display panel according to the eighth aspect, the end of the dummy electrode is coated with an insulating resin after aging of the panel. Features.

According to a tenth aspect of the present invention, there is provided the AC surface discharge type plasma display panel according to the eighth or ninth aspect.

The invention according to claim 11 is a method for manufacturing an AC surface discharge type plasma display panel,
(A) The first substrate, which is the substrate for an AC surface discharge type plasma display panel according to any one of claims 1 to 6, is laid in parallel with each other in a direction orthogonal to the laying direction of the plurality of scan electrode pairs. A plurality of address electrodes, and a plurality of stripe-shaped partition walls laid in parallel with each other with respect to the plurality of address electrodes so as to sandwich the plurality of address electrodes on its main surface, and adjacent to each other. A phosphor layer is formed on the address electrode and the main surface sandwiched by the partition walls and on the partition walls adjacent to each other, and a ventilation hole for exhausting and filling a predetermined discharge space is further provided. Preparing a second substrate having (b)
After combining the first and second substrates so as to face each other while maintaining the predetermined discharge space, the one end of the first scan electrode, the other end of the second scan electrode and The first and second substrates are sealed to each other by the low melting point glass layer around the first and second substrates so that the end of the dummy electrode is out of the frame of the low melting point glass layer, (C) exhausting the predetermined discharge space through the vent, introducing a predetermined discharge gas into the predetermined discharge space, and then filling the vent to completely fill the predetermined discharge space. (D) applying a predetermined AC high voltage between the plurality of scanning electrode pairs and the dummy electrode and the plurality of address electrodes for a predetermined time to generate a gas discharge in the predetermined discharge space. Aging of the panel. To.

A twelfth aspect of the present invention is a method of manufacturing an AC surface discharge type plasma display panel,
(A) The first substrate, which is the substrate for an AC surface discharge type plasma display panel according to any one of claims 1 to 6, is laid in parallel with each other in a direction orthogonal to the laying direction of the plurality of scan electrode pairs. A plurality of address electrodes, and a plurality of stripe-shaped partition walls laid in parallel with each other with respect to the plurality of address electrodes so as to sandwich the plurality of address electrodes on its main surface, and adjacent to each other. A phosphor layer is formed on the address electrode and the main surface sandwiched by the partition walls and on the partition walls adjacent to each other, and a ventilation hole for exhausting and filling a predetermined discharge space is further provided. Preparing a second substrate having (b)
After combining the first and second substrates so as to face each other while maintaining the predetermined discharge space, the one end of the first scan electrode, the other end of the second scan electrode and The first and second substrates are sealed to each other by the low melting point glass layer around the first and second substrates so that the end of the dummy electrode is out of the frame of the low melting point glass layer, (C) during the step of exhausting the predetermined discharge space through the ventilation port, temporarily stopping the exhaust and introducing a predetermined discharge gas into the predetermined discharge space; Aging the panel by applying a predetermined alternating high voltage between the dummy electrode and the plurality of address electrodes for a predetermined time to generate a gas discharge in the predetermined discharge space; and (d) After exhausting the predetermined discharge space again Serial introducing the predetermined discharge gas in a predetermined discharge space, then, characterized by completely sealing the predetermined discharge space by filling the vent.

[0025]

DESCRIPTION OF THE PREFERRED EMBODIMENTS AC surface discharge type PDP according to the present invention
Are combined so as to oppose each other to form a predetermined discharge space, and the first and second substrates or the first and second substrates sealed to each other by a low-melting glass layer (for example, frit glass) at their peripheral portions. In the panel, the first substrate having a plurality of pairs of scanning electrodes or the structure of the first panel is characterized. That is, in the present invention, the aging dummy electrode is laid between the main surface of the substrate and the surface of the dielectric in parallel to at least one of the plurality of scanning electrode pairs. More preferably, it is practical to provide the above-mentioned dummy electrode for each scanning electrode pair. In the following, the latter case is referred to as a reflection type A
The C-surface discharge type PDP will be described in detail. Of course, it is possible to apply the following embodiments and their modifications to a transmission type AC surface discharge type PDP.

(Embodiment 1) FIG. 1 is a perspective plan view schematically showing a configuration of an AC surface-type discharge PDP according to Embodiment 1, and FIG. 2 is a cross section of one pixel EG in FIG. It is an exploded perspective view which expands and shows a structure.

Each part will be described with reference to FIGS.
First, reference numeral 100 denotes a first panel or a front panel including the components 1, (X, Y), 4, 5, and 13 as constituent elements.
In these elements, reference numeral 1 denotes a first glass substrate (hereinafter, simply referred to as a first substrate) on a display surface side, and (X, Y) are adjacent to each other in a first direction (scan line direction) in parallel with each other. A plurality of extended scanning electrode pairs. A plurality of scan electrode pairs (X,
Each pair of Y) has a first scan electrode and a second scan electrode laid in parallel with each other, but here, for convenience, one scan electrode X is also called a “first scan electrode”, and The scanning electrode (common electrode) Y common to the scanning lines is also referred to as “second scanning electrode”. Of course, this definition may be called in reverse. Reference numeral 13 (X ') denotes an aging dummy electrode laid in parallel with each of the plurality of scanning electrode pairs (X, Y). It is formed on the surface on the discharge space side (hereinafter referred to as the main surface). In addition, as shown in FIG.
(X ′) is disposed over each pixel of the adjacent scanning line, and the discharge space 10 immediately below each dummy electrode 13 defined by an adjacent partition 7 described later is a unit of an adjacent unit of the same color. It corresponds to a boundary space between the light emitting areas EU.
Reference numeral 4 denotes a dielectric layer for AC driving formed on the main surface. As shown in FIG.
One end (left side in FIG. 3) of each pair of first scan electrodes X;
Each scan electrode pair (X, Y) except for the other end of the second scan electrode Y facing the other end (right side in FIG. 3) of the first scan electrode X, and each dummy electrode Except for one end (the left end in FIG. 3) of each of the dummy electrodes 13, the portion of each dummy electrode 13 is covered. Reference numeral 5 denotes a discharge protection film made of, for example, an MgO film, which is formed on the surface of the dielectric layer 4, and the surface forms a part of the inner wall of each discharge space 10.

On the other hand, the back panel or the second panel 200
Consists of the following components: That is, reference numeral 6 denotes a second glass substrate (hereinafter, referred to as a second substrate) on the opposite surface side, and 7
Are laid in parallel to each other in a direction (second direction) orthogonal to the laying direction of the scan electrode pairs (X, Y), and the tops thereof are in contact with the surface of the discharge protection film 5 so that the discharge space 10 is formed. A plurality of partition walls defining the interval dimension of
It is formed on a surface on the discharge space side of the substrate 6 (hereinafter, referred to as a main surface). W is an address electrode provided between the partition walls 7 on the main surface of the substrate 6, and R (red),
G (green), B (blue) phosphor layers 9R, 9G, 9 of three primary colors
B are formed on the corresponding address electrodes W sandwiched between the adjacent partitions 7, on the main surface of the second substrate 6, and on both the partitions 7.

The inner discharge space 10 is partitioned by the partition walls 7 into unit light emitting areas EU.
As a discharge gas that emits ultraviolet light that excites the phosphor layers 9R, 9G, and 9B, a neon-xenon mixed gas is 500 (To
(rr).

Since each of the plurality of scanning electrode pairs (X, Y) is arranged on the display surface side, a strip-shaped transparent conductor film (for example, a Nesa film: tin oxide) 3 and a conductive material of the film 3 are formed. And a metal film (for example, Ag: silver) 2 serving as a bus electrode for compensating for the above.

Here, the dummy electrode 13 (X ′) is formed of one transparent conductor film or one metal film, but the dummy electrode 13 (X ′) is also formed of the scan electrode pair (X, Y). At the same time, a strip-shaped transparent conductor film (Nesa film: tin oxide)
It may be formed using a metal film (for example, Ag: silver) for supplementing the conductivity. In this case, there is an advantage that both (X, Y) and 13 can be formed in the same step.

In the present PDP, in each discharge space 10,
Surface discharge occurs at each intersection between the scanning electrode pair (X, Y) and the address electrode (W), and the unit light emitting region EU is defined. Since a portion corresponding to each unit light emitting region EU can be selectively made to emit light, full color display can be performed by a combination of three primary colors R, G, and B.

As shown in FIG. 2, also in the present PDP, each pixel EG constituting the display screen is composed of three unit light emitting areas EU arranged in one direction, and is associated with each unit light emitting area EU for full color display. Primary color phosphor layer 9R for
9G and 9B are arranged in order. Each such pixel E
In G, scanning electrode pairs (X, Y) extending in the arrangement direction of the unit light emitting regions EU are arranged as electrodes for causing surface discharge. Further, as a feature of the present embodiment, a dummy electrode 13 (X ′) used only during aging is arranged in parallel with each scanning electrode pair (X, Y).

FIG. 3A is a see-through plane schematically showing the structure of the panel portion. 3 (b) and 3 (c) are longitudinal sectional views taken along lines I-IA and II-IIA of FIG. 3 (a), respectively. In FIG. 3A, for convenience,
The dielectric layer 4 is indicated by hatching, and its outer frame is drawn by broken lines.

As described above, the PDP is a display panel having a structure in which the discharge space 10 is sandwiched between the first glass substrate 1 and the second substrate 6. That is, a frame-shaped low-melting glass layer 11 is provided as a sealing material around the surface of one of the first substrate 1 and the second substrate 6, and the substrates 1 and 6 are overlapped and pressed. To about 400 ° C to 450 ° C and
By integration, the main discharge space 10 is formed.
In the present embodiment, in the region where the dielectric layer 4 is formed, one side of the frame of the low-melting glass layer 11 is in contact with the peripheral edge of the discharge protection film 5 of the first substrate 1, Same layer 1
The other side of the frame 1 is in contact with the peripheral edge of the main surface of the second substrate 2. Of course, the discharge protection film 6 may be formed so that (the formation area of the dielectric layer 4)> (the formation area of the discharge protection film 6). In this case, one side of the frame of the low melting point glass layer 11 is formed of the dielectric layer. 4, the discharge protection film 6 is located inside and outside the frame of the low melting point glass layer 11.

Following the integration of the first and second substrates 1 and 6, the discharge space 10 is evacuated while being heated to, for example, about 350.degree.
The space 10 is filled with a discharge gas. The through holes 12 for this purpose are provided in advance near the corners of the second substrate 6.

Next, the AC surface discharge type P shown in FIGS.
An example of a DP aging method will be described. Here, FIG. 4 is a perspective plan view of the PDD schematically shown for explaining the aging method, and unlike the case of FIG. 3, the dielectric layer 4 of FIG. 2 is not shown. In FIG. 4, reference numeral 33 denotes an AC high voltage generator having a constant period, and its voltage is applied between the address electrodes W facing each scan electrode pair (X, Y) and the address electrodes W corresponding to each dummy electrode 13. It has a necessary and sufficient value to start the gas discharge in the discharge space 10 in between.

In this aging step, first, after the integration of both panels 100 and 200 by the low melting point glass layer 11, the discharge space 10 is evacuated, and then each discharge space 1 is exhausted.
Then, the discharge gas is introduced into the space 0, and then the discharge space 10 is completely sealed by filling the through holes 12. Thereafter, a common first voltage is applied to each scan electrode pair (X, Y) and each dummy electrode 13 (X ′) from the AC high voltage generator 33, and at the same time, to each address electrode W, for example, a ground potential. By applying two voltages, a gas discharge is generated in the discharge space 10, and the gas discharge is continued for a predetermined time (for example, 24 hours). That is, the first
With respect to the substrate 1, each scanning electrode (X1 to Xn) and each dummy electrode (X'1 to X'n-1) are clipped by a clip-type first aging short bar 30, and each scanning electrode X And each dummy electrode 13 are connected to a first output terminal T1 of an AC high voltage generator 33, and the common electrode Y is clipped by a clip-type second aging short bar 31 also connected to the first output terminal T1. , All the scanning electrode pairs (X, Y) and all the dummy electrodes 13 are commonly connected to each other. Further, a third clip-type
Each address electrode W is clipped by the aging short bar 32 and each address electrode W is connected to the AC high voltage generator 3.
3 to the second output terminal T2. In this state, the commonly connected first and second aging short bars 30,
A predetermined AC high voltage is continuously applied from the AC high voltage generator 33 for a predetermined time between the short bar 31 and the third aging short bar 32 to cause gas discharge in the entire discharge space 10 of the present PDP to perform aging of the panel. Do.

By performing the above-described aging on the AC surface discharge type PDP having the structure shown in FIGS. 1 to 3, the area of the discharge space 10 in which gas discharge occurs during aging is dramatically improved as compared with the conventional case. Can be increased. In order to clearly illustrate this point, a region actually aged in the entire discharge space 10 is schematically shown in FIG. 5 which is a perspective plan view. As shown in FIG. 5, each unit light emitting area EU
Of the discharge space 1 defined by the area where the dummy electrode 13 (X ′) is provided and the address electrode W immediately below the area.
The region A1 of 0 also generates gas discharge during aging at the same time as gas discharge in the region A0 of the discharge space immediately below the area region of the scan electrode pair (X, Y).
Increase as an actually aged area. Therefore,
In the present embodiment, the region where impurities such as moisture and carbon dioxide gas remain is limited to the region B0 in FIG. Then, the occupation ratio of the region B0 to the discharge space 10 is small, and in fact, it can be considered that almost all regions of the discharge space 10 are aged at the same time. As described above, since gas discharge occurs during aging in most regions in each discharge space 10, the amount of impurities remaining in the discharge space 10 can be drastically reduced by the action of gas discharge due to aging. .

The AC surface discharge type PDP which has been aged by the above-described method can be used, for example, as the panel portion of the plasma display device shown in FIG.
It is incorporated in the same device. Therefore, the plasma display device having the present PDP has a panel on which the panel aging process has already been performed for drastically reducing residual impurities and stabilizing discharge characteristics. However, stable discharge characteristics without burn-in can be maintained, and a high-quality screen can be displayed.

(Modification 1) In this modification, even if a local disconnection occurs in one or a plurality of dummy electrodes 13 during aging, energization to the cut dummy electrode 13 can be directly performed. , The discharge space 10 defined by the dummy electrode 13 and the partition 7 adjacent to the address electrode W
The purpose is to avoid a situation where gas discharge becomes impossible in the region A1 (FIG. 5). That is, the dummy electrode 13 may have a part where the electrode width is narrowed due to its manufacture, and when the aging AC high voltage is applied to the thin part at the start of aging, Because the discharge current tends to concentrate on that part,
In some cases, the part may be cut. Therefore, the present modified example is based on the premise that such a situation occurs (rather than avoiding this situation), and the discharge cell formed by the cut dummy electrode and the corresponding address electrode. Is a modification of the structure of the dummy electrode 13 of the first embodiment so that the gas discharge can be continued without being affected by the above-described disconnection. The modifications will be described with reference to the drawings.

FIG. 6 shows an AC surface discharge type PD according to this modification.
FIG. 4 is a perspective plan view showing the structure of P, and corresponds to FIG. 3. The structural difference between FIGS. 3 and 6 is that the external connection terminal portion on the common electrode Y side (the side connecting the second aging short bar 31) of the dummy electrodes 13 (X ′ 1 to X′n−1) Like the one end of the same electrode 13, the other end was exposed without being covered with the dielectric layer 4, and thus was exposed outside the frame of the low-melting glass layer 11 as a sealing material. The other parts are the same as the corresponding parts in FIGS. That is, in the aging step, a predetermined AC high voltage output by the AC high voltage generator 33 from the external connection terminal portions at both ends can be applied to each dummy electrode 13.

FIG. 7 shows an example of the aging method of the AC surface discharge type PDP in the first modification. Basically, it is the same as the method described in Embodiment 1 with reference to FIG. That is, after glass sealing of both panels, first, the discharge space 10 is evacuated, a discharge gas is introduced into the space 10, and then the discharge space 10 is completely sealed. Then, when aging is performed, the exposed scanning electrodes X (X1 to Xn) and the dummy electrodes 13 (X'1
To X′n−1) are simultaneously clipped by a clip-type first aging short bar 30 to connect the two electrodes X and 13 in common, and to form a common electrode Y and a dummy electrode 13 ( X'1 to X'n-1) simultaneously clip the other end of the second short bar 3 for aging.
The first and second electrodes Y and 13 are connected in common by clipping at 1, and the address electrodes W are commonly connected to the second substrate 6 by a clip-type third aging short bar 32. In this state, the first and second aging short bars 30 and 31 and the third aging short bar 3
2, a predetermined AC high voltage is applied from the AC high voltage generator 33 to discharge all the discharge areas (except for the area B0 in FIG. 5) of the present PDP at the same time, thereby aging the panel for a predetermined time. I do.

Thus, even if one or a plurality of dummy electrodes 13 (X ') are disconnected, both portions of each of the dummy electrodes 13 bisected by cutting are still connected to the respective portions. Since the aging AC high voltage is still supplied from the connection terminal side, the discharge cells formed at the cut dummy electrode 13 continue gas discharge without being in a discharge impossible state. ,
Aging by gas discharge is possible in the entire discharge region (except region B0 in FIG. 5).

(Modification 2) This modification is a modification of Modification 1, in which a certain dummy electrode 13 is cut off, and the electrical connection between one end of the dummy electrode 13 and the first aging short bar 30 is made. Even if simultaneous contact failure or contact failure with the other end of the dummy electrode 13 or the second aging short bar 31 occurs simultaneously, all dummy electrodes 13 are not affected by such a situation. This ensures that an aging AC high voltage is supplied.

FIG. 8 shows an AC surface discharge type PD according to this modification.
6 schematically shows the structure of P, and corresponds to FIGS. The structural difference between FIG. 8 and FIG. 6 is that one end of each dummy electrode 13 (X ′) is commonly connected to each other, and the other end is also commonly connected to each other. In this case, the common connection of both ends of the dummy electrode 13 (X ′) is performed using the common dummy electrode 14 as shown in FIG.
The aging method in this case is the same as that in the first modification.

Thus, in the aging step, some connections between the clip-type first aging short bar 30 or the clip-type second aging short bar 31 and the dummy electrodes 13 (X1 'to X'n-1). Even if a dummy electrode that has not been electrically connected to the terminal unit (one or the other end) due to a contact failure and has a contact failure is disconnected, the dummy electrode 13 The discharge cell defined by the address electrode W and the corresponding address electrode W does not fail to discharge, and the panel can be reliably aged by gas discharge in the entire discharge region. For example, even if the dummy electrode X1 'in FIG. 8 is disconnected and there is a contact failure between the electrode X1' and the first aging short bar 30, the divided dummy electrode X1 '
8 is supplied with aging AC high voltage from one end (left end) of the dummy electrode X2 'via the left common dummy electrode 14, and the energized state of the same is maintained. Is done.

(Modification 3) In Embodiment 1 and Modifications 1 and 2 described above, the dummy electrode 13 (X ′) is formed only of a strip-shaped transparent conductor film (Nesa film: tin oxide). Or a metal film (for example, Ag: silver) 2 or a two-layer structure as described above. In this modification, a metal film (for example, Ag: silver) mixed with a black pigment is used as a modification of the first embodiment and the first and second modifications thereof, from the viewpoint of simultaneously achieving a display contrast improving effect. To form the dummy electrode 13 directly. Alternatively, the dummy electrode 13 may be composed of the above and a metal film containing a black pigment as a material for supplementing the above conductivity.

As a result, it is possible to provide the dummy electrode with both the functions of improving aging and improving the contrast without particularly providing an insulating black stripe as in the prior art, and a further effect is expected. You.

(Modification 4) This modification is a modification of Embodiment 1 and all of Modifications 1 to 3 described above. Specifically, this modification relates to a modification of the aging method of the AC surface discharge type PDP, that is, aging exhaust. First, the evacuation is temporarily stopped in the middle of evacuation of the discharge space 10 after the sealing of both panels. At this time, the inner wall surface of the discharge space 10 is heated to about 350 ° C., which is an active state. The discharge gas is immediately introduced into the discharge space 10 by utilizing the state during the exhaust, and the aging AC voltage is applied between the scan electrode pair (X, Y) and the dummy electrode 13 (X ′) and the address electrode W. By continuing to apply the voltage for a predetermined time, a gas discharge is generated in the discharge space 10. Thereafter, the discharge space 10 is evacuated again, and the discharge gas is again discharged into the discharge space 1.
0 to fill the through-holes 12 so that the discharge space 10
Seal completely. By utilizing such aging exhaust gas for aging the PDP according to the present invention, an effect of further reducing the amount of residual impurities can be obtained.

(Modification 5) This modification is applicable to the first embodiment and all the modifications 1-4. That is, in the present modification, the end of the dummy electrode 13 that is exposed after the aging of the AC surface discharge type PDP is completed (corresponding to one of the one end or the other end, or both ends).
Is covered with an insulating resin. That is,
In the PDP panel after the aging step, the external connection terminal portions at both ends of the dummy electrode 13 (X ′) are outside the frame of the low-melting glass layer 11 and are exposed. When the PDP is used in the plasma display device in such a state, for example, fibrous foreign matter adheres to the end of the dummy electrode 13 and the end of the scanning electrode pair (X, Y). In this case, both electrodes 13, (X, Y) are short-circuited. Therefore, after the aging is completed, the end of the dummy electrode 13 is finally covered with an insulating resin (for example, a silicon resin), thereby preventing the occurrence of a problem such as insulation failure due to adhesion of a foreign substance or the like. can do.

(Embodiment 2) Embodiment 1 (Modification 1)
To 5) (including AC surface discharge type PDP),
Although the dummy electrode 13 is formed on the main surface of the first substrate 1, in the present embodiment, the dummy electrode 13 (X ′) is laid on one main surface inside the dielectric layer 4. That is, the dummy electrodes 13 (X ′) are formed as a layered structure on the main surface of the first substrate 1 together with the scanning electrode pairs (X, Y). Specifically, in order to provide the dummy electrode 13 (X ′) on one main surface inside the dielectric layer 4, the dielectric layer 4 is usually formed by stacking several dielectric layers. Focusing on this, the dielectric layer 4 has a laminated structure of at least two layers, and the dummy electrode 13 is sandwiched between two adjacent dielectric layers. Such a specific example is shown in FIG. 10 in which only the panel portion is taken out and schematically drawn, and FIG. 11 showing a decomposition structure for one pixel.

As shown in FIGS. 10 and 11, first, a first dielectric layer 4A of the first layer is formed on the main surface of the first substrate 1, and one end of the scanning electrode X and the common electrode Y are formed. Except for the other end of the scanning electrode pair (X, Y),
And a dummy electrode 13 (X ') on the surface of the same layer 4A.
Then, one end of the dummy electrode 13 (FIG. 1)
The left second dielectric layer 4 </ b> B is covered with the first dielectric layer 4 </ b> B so as to cover all the dummy electrodes 13 except the left end of the first dielectric layer 4.
A may be formed on the surface of A. That is, in consideration of the connection between the clip-type first aging short bar 30 and the dummy electrode 13 in the aging step, the lower second dielectric layer 4B is formed as shown in FIG. The dummy electrode 13 (X ′) is formed so as to have a smaller area than the layer 4A and not to cover the connection terminal portion of the dummy electrode 13 (X ′).

When adopting such a hierarchical structure,
For example, even when the pitch between the scanning electrode pairs (X, Y) has become narrower with higher definition, the dummy electrodes 13
(X ′) and the adjacent scanning electrode pair (X, Y) can be prevented from being short-circuited.

The dummy electrode 13 according to the second embodiment
The first modification of the first embodiment described above and the second modification can be applied to the above structure. A perspective plan view of a panel structure when the second embodiment is applied to Modifications 1 and 2,
These are shown in FIGS. 11 and 12, respectively.

Further, Modifications 3 to 5 described above can be applied to a PDP having a dummy structure according to the second embodiment, and the effects described in Modifications 3 to 5 can be similarly obtained.

(Summary) (1) As described above, according to the substrate for AC surface discharge type PDP (first substrate), the PDP using the same, the method of manufacturing the same, and the plasma display device according to the present embodiment. In addition, it is possible to perform aging by simultaneously performing gas discharge in discharge spaces between adjacent unit light emitting regions of different pixels, and to control the amount of impurities such as moisture and carbon dioxide gas remaining in the discharge spaces to be smaller. As a result, it is possible to obtain a high-performance, high-quality AC surface-discharge PDP with stable discharge characteristics even after long-term use, less burn-in, and a display device using the same.

(2) In the aging step, even if the single or plural dummy electrodes 13 are disconnected,
The discharge cells formed by the dummy electrode portion from the connection terminal side of the dummy electrode to the cut portion do not become unable to discharge, and the entire discharge region can be reliably aged by gas discharge. .

(3) Further, if a metal film (for example, Ag: silver) mixed with a black pigment is used for the dummy electrode 13 (X '), an AC surface discharge type PDP device having a high display contrast can be obtained at the same time. Becomes

(Supplementary Note) (1) In the first and second embodiments, the partition 7 and the address electrode W are formed directly on the main surface of the second substrate 6 as shown in FIGS. Instead, an address electrode W is formed on the surface of the second substrate 6 in order to prevent migration of silver or the like used for the address electrode W and suppress and reflect visible light from the second substrate. Alternatively, after forming an insulating base layer covering the address electrodes W on the surface of the second substrate 6, the partition walls 7 may be formed on the surface of the base layer. In this case, the glass substrate 6
And the underlayer are collectively referred to as a “second substrate”, and the surface of the underlayer corresponds to the “principal surface of the second substrate”.

(2) In the first embodiment, the dummy electrode 13
Is formed on the main surface of the first substrate 1 and is covered with the dielectric layer 4. In the second embodiment, the dummy electrode 13 is sandwiched between the first dielectric layer 4A and the second dielectric layer 4B. It is arranged in the state where it was. Taking such a situation,
Here, “the dummy electrode 13 is formed on one main surface in the first panel” or “the dummy electrode 13 is laid between the main surface of the substrate and the surface of the dielectric layer”. It is described.

[0062]

According to the first, eighth, tenth, eleventh, and twelfth aspects of the present invention, at least one dummy electrode and each address electrode intersect with each other when a plasma display panel is aged. Since gas discharge can be generated, the amount of impurities remaining in the discharge space can be reduced as compared with the conventional case,
It is possible to realize a high-performance AC surface discharge type plasma display panel having stable discharge characteristics and less burn-in.

According to the second, eighth, tenth, eleventh, and twelfth aspects of the present invention, a gas discharge can be generated in the entire discharge space when the plasma display panel is aged, so that the gas remains in the discharge space. The amount of impurities can be further reduced, the discharge characteristics are stable even when the panel is used for a long time, and there is less seizure, and the higher performance A
A C-surface discharge type plasma display panel can be realized.

According to the third, eighth, tenth, eleventh, and twelfth aspects of the present invention, it is possible to form a dummy electrode on the main surface at the same time as forming the scanning electrode pair. The structure can be simplified.

According to the fourth, eighth, tenth, eleventh, and twelfth aspects of the present invention, the scanning electrode pairs and the dummy electrodes have a hierarchical structure. Even if the pitch becomes narrow, the dummy electrodes can be provided for each scanning electrode pair without bringing the dummy electrode and the adjacent scanning electrode pair into contact with each other. As described above, the present invention has a structural feature capable of flexibly coping with high definition.

According to each of the fifth, eighth, tenth, eleventh, and twelfth aspects of the present invention, since both ends of each dummy electrode are not covered, the dummy electrode may be tentatively used during the aging step. Even if a disconnection occurs, a voltage for discharging is always applied to each part of the dummy electrode bisected by the disconnection line through the end of the dummy electrode connected to that part, so that the disconnection part and the address electrode This makes it possible to prevent the discharge space where と intersects from becoming impossible to discharge, and as a result, the entire discharge space can always be continuously discharged during the aging process.

According to the sixth, eighth, tenth, eleventh and twelfth aspects of the present invention, the same voltage is supplied to the dummy electrode through electrical contact between the external discharge voltage application terminal and each end of the dummy electrode. In the case of aging, even if there is a poor electrical contact between the application terminal of each part and the one with the dummy electrode, even if the dummy electrode is disconnected, it will be affected by them Therefore, the discharge voltage can be reliably supplied to all the dummy electrodes, and aging due to the discharge in the entire discharge space can be reliably realized.

According to the seventh, eighth, tenth, eleventh, and twelfth aspects of the present invention, it is possible to suppress the reflection of visible light from the outside on the dummy electrode. There is an effect that the display contrast can also be improved by using the dummy electrodes without being provided in an overlapping manner.

According to the ninth aspect of the present invention, it is possible to prevent the dummy electrodes from being exposed to the outside after the aging step. As a result, the occurrence of a short circuit can be completely prevented.

According to the twelfth aspect of the present invention, during the exhaust,
Since the aging is performed for all the active discharge spaces in a state in which the exhaust is temporarily stopped, the effect of reducing the amount of impurities due to the discharge during the aging can be more efficiently realized.

[Brief description of the drawings]

FIG. 1 is a perspective plan view of an AC surface discharge type PDP according to Embodiment 1 of the present invention.

FIG. 2 is an exploded perspective view showing a cross-sectional structure for one pixel of the AC surface discharge type PDP according to Embodiment 1 of the present invention.

FIG. 3 is a perspective plan view showing a configuration of a panel portion of the AC surface discharge type PDP according to the first embodiment.

FIG. 4 is a diagram showing an example of an aging method of the AC surface discharge type PDP in the first embodiment.

FIG. 5 is a schematic plan view showing a region actually discharged by discharging the entire discharge region by the aging method of the AC surface discharge type PDP according to the first embodiment.

FIG. 6 shows an AC surface discharge type P according to a modification of the first embodiment.
It is a block diagram of the panel part of DP.

FIG. 7 is a diagram showing an example of an aging method of an AC surface discharge type PDP in a modification of the first embodiment.

FIG. 8 shows an AC surface discharge type P according to a modification of the first embodiment.
It is a block diagram of the panel part of DP.

FIG. 9 is a perspective plan view of an AC surface discharge type PDP according to Embodiment 2 of the present invention.

FIG. 10 is a perspective view showing a cross-sectional structure for one pixel of an AC surface discharge type PDP according to a second embodiment.

FIG. 11 is a configuration diagram of a panel portion of an AC surface discharge type PDP according to a modification of the second embodiment.

FIG. 12 is a configuration diagram of a panel portion of an AC surface discharge type PDP according to a modification of the second embodiment.

FIG. 13 is a schematic plan view of a conventional AC surface discharge type PDP.

FIG. 14 is an exploded perspective view showing a cross-sectional structure of a conventional AC surface discharge type PDP.

FIG. 15 is an overall configuration diagram of an AC surface discharge type plasma display device.

FIG. 16 is a configuration diagram of a panel portion of a conventional AC surface discharge type plasma display device.

FIG. 17 is a diagram showing an example of a conventional aging method of an AC surface discharge type PDP.

FIG. 18 is a schematic plan view showing a region actually discharged by discharging all discharge regions by an aging method of a conventional AC surface discharge type PDP.

[Explanation of symbols]

REFERENCE SIGNS LIST 1 First glass substrate, 2 bus electrode, 3 transparent conductive film, 4 dielectric layer, 4A first dielectric layer, 4B second dielectric layer, 5 discharge protection film, 6 second glass substrate, 7 partition, 8 Partition wall mixed with black pigment, 8A Notch of partition wall mixed with black pigment, 9R phosphor (red), 9G phosphor (green), 9B phosphor (blue), 10 discharge space, 11
Low melting point glass layer, 12 through-hole, 13 (X ′) dummy electrode, 14 common dummy electrode, 20 Y driver, 21
X driver, 22 W driver, 23 control circuit, 30
Clip-type short bar for first aging, 31
Clip-type second aging short bar, 32 Clip-type third aging short bar, 33 AC high-voltage generator, EU unit light-emitting region, EG unit pixel region, X, Y scanning electrode pair, W address electrode.

Claims (12)

[Claims] A substrate, a plurality of pairs of scan electrodes laid on the main surface of the substrate in parallel with each other, each pair having a first scan electrode and a second scan electrode; One end of a first scan electrode and the first scan electrode;
As to cover the plurality of scan electrode pairs except for the other end of the second scan electrode facing the other end of the scan electrode,
A dielectric layer formed on the main surface, a discharge protection film formed on the surface of the dielectric layer, between the main surface and the surface of the dielectric layer,
An AC surface, comprising: a dummy electrode laid in parallel to at least one of the plurality of scanning electrode pairs, and one end of the dummy electrode is not covered with the dielectric layer. Substrate for discharge type plasma display panel. 2. The AC surface discharge type plasma display panel substrate according to claim 1, wherein said dummy electrode is provided for each of said plurality of scanning electrode pairs. Substrate for surface discharge type plasma display panel. 3. The substrate for an AC surface discharge type plasma display panel according to claim 2, wherein the dummy electrode is formed on the main surface. substrate. 4. The substrate for an AC surface discharge type plasma display panel according to claim 2, wherein the dielectric layer comprises: one end of the first scan electrode and the other end of the second scan electrode. A first dielectric layer formed on the main surface so as to cover the plurality of scan electrode pairs excluding end portions; and a second dielectric layer formed on the surface of the first dielectric layer. Wherein the discharge protection film is formed on the surface of the second dielectric layer, the dummy electrode is formed on the surface of the first dielectric layer, A substrate for an AC surface discharge type plasma display panel, wherein the one end is not covered with the second dielectric layer. 5. The AC surface discharge type plasma display panel substrate according to claim 2, wherein the other end of the dummy electrode is not covered with the dielectric layer. Type substrate for plasma display panel. 6. The substrate for an AC surface discharge type plasma display panel according to claim 5, wherein the one end of each of the dummy electrodes is connected to each other, and the one of each of the dummy electrodes is connected to each other. A substrate for an AC surface discharge type plasma display panel, wherein the other ends are also connected to each other. 7. The AC according to claim 2, wherein
A surface discharge type plasma display panel substrate, wherein the dummy electrode is blackened,
Substrate for AC surface discharge type plasma display panel. 8. A first substrate as the substrate for an AC surface discharge type plasma display panel according to claim 1, wherein the first substrate and the plurality of scanning electrode pairs are parallel to each other in a direction orthogonal to the laying direction. A plurality of address electrodes laid, a plurality of stripe-shaped partition walls laid in parallel with each other to the plurality of address electrodes so as to sandwich the plurality of address electrodes, and the plurality of address electrodes sandwiched by the partition walls adjacent to each other. A second substrate having a phosphor layer formed on the address electrode, on the main surface, and on the partition wall adjacent to each other, wherein the first and second substrates are relatively maintained while maintaining a predetermined discharge space. Facing each other and are sealed to each other by a low-melting glass layer at their peripheral portions, and the one end of the first scan electrode and the other end of the second scan electrode Wherein the other end and the end of the dummy electrode are out of the frame of the low melting point glass layer.
Surface discharge type plasma display panel. 9. The AC surface discharge type plasma display panel according to claim 8, wherein the end of the dummy electrode is covered with an insulating resin after aging of the panel. Discharge type plasma display panel. 10. An AC surface discharge type plasma display device comprising the AC surface discharge type plasma display panel according to claim 8. 11. A method for manufacturing an AC surface discharge type plasma display panel, comprising: (a) a first substrate as the substrate for an AC surface discharge type plasma display panel according to any one of claims 1 to 7; A plurality of address electrodes laid in parallel with each other in a direction orthogonal to the laying direction of the plurality of scan electrode pairs, and stripes laid in parallel with the plurality of address electrodes so as to sandwich the plurality of address electrodes A plurality of partition walls on the main surface thereof, and a phosphor layer is formed on the address electrode and the main surface sandwiched between the partition walls adjacent to each other and on the partition walls adjacent to each other. And a second substrate further provided with a vent for exhausting and filling a predetermined discharge space, and (b) maintaining the predetermined discharge space and facing each other so as to face each other. After combining the first and second substrates, the one end of the first scan electrode, the other end of the second scan electrode, and the end of the dummy electrode are outside the frame of the low-melting glass layer. (C) sealing the first and second substrates together with the low-melting glass layer at the periphery of the first and second substrates, and (c) discharging the predetermined discharge through the ventilation holes After exhausting the space, a predetermined discharge gas is introduced into the predetermined discharge space, and thereafter, the predetermined discharge space is completely sealed by filling the ventilation holes. (D) The plurality of scan electrode pairs Aging the panel by applying a predetermined AC high voltage between the dummy electrode and the plurality of address electrodes for a predetermined time to generate a gas discharge in the predetermined discharge space. AC surface discharge type plasma display Method of manufacturing a panel. 12. A method of manufacturing an AC surface discharge type plasma display panel, comprising: (a) a first substrate as the substrate for an AC surface discharge type plasma display panel according to claim 1; A plurality of address electrodes laid in parallel with each other in a direction orthogonal to the laying direction of the plurality of scan electrode pairs, and stripes laid in parallel with the plurality of address electrodes so as to sandwich the plurality of address electrodes A plurality of partition walls on the main surface thereof, and a phosphor layer is formed on the address electrode and the main surface sandwiched between the partition walls adjacent to each other and on the partition walls adjacent to each other. And a second substrate further provided with a vent for exhausting and filling a predetermined discharge space, and (b) maintaining the predetermined discharge space and facing each other so as to face each other. After combining the first and second substrates, the one end of the first scan electrode, the other end of the second scan electrode, and the end of the dummy electrode are outside the frame of the low-melting glass layer. (C) sealing the first and second substrates together with the low-melting glass layer at the periphery of the first and second substrates, and (c) discharging the predetermined discharge through the ventilation holes In the middle of evacuation of the space, the evacuation is temporarily stopped, a predetermined discharge gas is introduced into the predetermined discharge space, and a space between the plurality of scan electrode pairs and the dummy electrode and the plurality of address electrodes is provided. Aging is performed on the panel by applying a predetermined AC high voltage to the predetermined discharge space to generate a gas discharge in the predetermined discharge space, and (d) exhausting the predetermined discharge space again. The predetermined discharge gas in the predetermined discharge space; Introduced, then, characterized in that said completely sealing the predetermined discharge space by filling vents, AC surface-discharge plasma display panel manufacturing method of.