JP2003123645A - Plasma display panel and its manufacturing method and glass composite - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a manufacturing method for sealing the front plate and the rear plate excellently in the plasma display panel in which the electrode, dielectric, and bulkhead are arranged between the opposing front plate and rear plate, and the front plate and rear plate are sealed by the sealing member, and a plasma display panel manufactured by that manufacturing method, and a glass composite constituting the sealing member. SOLUTION: This is a manufacturing method in which the sealing member is sealed in the temperature condition which is 70 deg.C or more lower and 30 deg.C or less higher than the operating point of the glass composite that constitutes the sealing member. And the glass composite is made a glass composite that has an operating point that is 30 deg.C or more lower and 70 deg.C or less higher than the firing temperature of the sealing process, and sealing is made by a sealing member containing this.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a plasma display panel used for image display, a manufacturing method for sealing a front plate and a back plate thereof, and a glass composition contained in a sealing member.

[0002]

2. Description of the Related Art A conventional plasma display panel will be described below. FIG. 2 is a partial cross-sectional perspective view showing the main configuration of a general plasma display panel. In FIG. 2, 1 is a front plate. Reference numeral 2 denotes a front glass substrate, and a display electrode 5 including a transparent conductive film 3 and a bus electrode 4 is formed on the front glass substrate 2.
Further, the display electrode 5 is a dielectric layer 6 made of dielectric glass.
And a dielectric protection layer 7 made of magnesium oxide.

Reference numeral 8 is a back plate. Reference numeral 9 denotes a rear glass substrate. On the rear glass substrate 9, an address electrode 10, a dielectric layer 11 and a partition wall 12 for covering the address electrode, and a phosphor layer 13 are provided, and 14 is a discharge for enclosing a discharge gas. It is a space. For the color display, the phosphor layer 13 corresponds to any one of three colors of red (R), green (G), and blue (B), and the phosphor layers 13 (R), 13 (G), 13
(B) are arranged in order. Each phosphor layer 13 (R),
13 (G) and 13 (B) are excited to emit light by short wavelength ultraviolet rays (for example, wavelength 147 nm) generated by discharge.

The front plate 1 and the rear plate 8 having such a structure are opposed to each other so that the longitudinal directions of the display electrodes 5 and the address electrodes 10 are orthogonal to each other. FIG. 3 is a front view of the plasma display panel. Front plate 1 and back plate 8
Are sealed by a sealing member 15 made of glass frit at their peripheral portions, and the inside of the facing surface is sealed. Furthermore, the display electrode 5 and the address electrode 10 are connected to an external drive circuit (not shown), respectively.

Hereinafter, a conventional method of manufacturing a plasma display panel will be described. First, a display electrode composed of a transparent conductive film and a bus electrode is formed on the front glass substrate,
A dielectric layer made of dielectric glass is formed so as to cover this, and a protective layer made of magnesium oxide is further formed on the dielectric layer. Next, an address electrode is formed on the back glass substrate, and a dielectric layer and partition walls made of a glass material are formed on the address electrode at a predetermined pitch. A phosphor layer is formed by disposing and firing each color phosphor paste containing a red phosphor, a green phosphor, and a blue phosphor in each space sandwiched between these partition walls.

After that, a sealing member made of glass frit used for sealing the front plate and the rear plate is applied to the periphery of at least one of the front glass substrate and the rear glass substrate, and the resin component and the like in the sealing member. Calcination to remove the. Then, the surface of the front plate on which the display electrode, the dielectric glass layer and the protective layer are sequentially formed is arranged so as to face the rear plate so that the display electrode and the address electrode are orthogonal to each other through the partition wall, and is sealed by firing. The member is softened and fixed to seal the periphery.

After that, the inside of the panel is evacuated while being heated to a predetermined temperature, and after the discharge, the discharge gas is introduced so as to have a predetermined pressure. Further, the panel manufactured as described above is, if necessary, discharged for a predetermined time to stabilize the light emission characteristics and the discharge characteristics.

In the above manufacturing method, in the sealing step using the sealing member made of glass frit, it is necessary to perform heat treatment at a low temperature so as not to hinder other members. The reason is that the glass substrate, electrodes, dielectric layers, and partition walls contain glass materials, and it is necessary to avoid softening or deformation of these glass materials due to heating in the sealing step. It will not happen. Furthermore, it also has the purpose of preventing deterioration of the dielectric protective layer and the phosphor. For these reasons, generally, the processing temperature in the sealing step should be kept at 500 ° C. or lower.

From the above, the glass composition contained in the sealing member used for sealing the front plate and the rear plate of the plasma display panel is typified by lead glass containing PbO as a main component. So-called low melting glass has been used.

[0010]

As described above, in the manufacture of the plasma display panel, the sealing step for sealing the front plate and the back plate with consideration for not affecting other members. It is necessary to select the firing temperature and the appropriate glass composition that constitutes the sealing member.

However, until now, an appropriate temperature condition for sealing using the sealing member has not been clarified. Further, the physical properties required for the glass composition constituting the sealing member have not been clarified, and many trials and errors have been used to determine an appropriate firing temperature and glass composition.

FIG. 1 is a cross-sectional view of the periphery of the plasma display panel, which is a cross-sectional view taken along the address electrodes. If good sealing is performed by the sealing member, good sealing is possible as shown in FIG.

However, if the baking temperature and the sealing member are not appropriate, the sealing member will not be sufficiently softened, and as shown in FIG. 4, the sealing member cannot be sealed due to poor wetting of the front plate or the rear plate. There was something that happened.

On the other hand, if the sealing member is excessively softened by heating in the sealing step, the sealing member may flow and spread as shown in FIG. 5, and the front plate and the rear plate may not be sealed. .

In order to solve such a conventional problem, the present invention provides a plasma display panel in which a front plate and a back plate are well sealed, and a method for manufacturing the same, and a suitable glass constituting a sealing member. It is intended to provide a composition.

[0016]

In order to achieve the above-mentioned object, a method of manufacturing a plasma display panel according to the present invention is characterized in that an electrode, a dielectric and a partition wall are provided between a front plate and a back plate which face each other, and A method for manufacturing a plasma display panel in which a face plate and a back plate are sealed with a sealing member, wherein the working temperature of the glass composition constituting the sealing member is 70 ° C.
The sealing is performed at a temperature in the range of a low temperature or higher and a temperature 30 ° C. higher than the working point. As described above, if the sealing is performed under an appropriate temperature condition depending on the working point of the glass composition used, the front plate and the back plate can be well sealed.

The working point means that the viscosity of the glass is 10 ³
It is defined as the temperature at which Pa · s is reached.

Further, in the method for manufacturing a plasma display panel according to the present invention, the electrodes, the dielectric and the partition wall are disposed between the front plate and the back plate facing each other, and the front plate and the back plate are sealed by the sealing member. A method for manufacturing a plasma display panel, which comprises sealing with a sealing member containing a glass composition having a working point that is 30 ° C. lower than the firing temperature of the sealing step and 70 ° C. higher than the firing temperature. Is characterized by.

As described above, by using the sealing member containing the glass composition having the working point in the appropriate range depending on the firing temperature in the sealing step, the front plate and the rear plate are well sealed. be able to.

In addition to the above, the plasma display panel of the present invention is characterized by being manufactured by the manufacturing method described above, and is a plasma display panel in which a front plate and a rear plate are well sealed.

Further, the glass composition of the present invention is a plasma display panel in which electrodes, dielectrics and partition walls are arranged between a front plate and a back plate which face each other, and the front plate and the back plate are sealed by a sealing member. In the glass composition constituting the sealing member, the working point is at least 30 ° C. lower than the firing temperature in the sealing step and 70 ° C. above the firing temperature.
It is characterized by being at a high temperature or lower.

As described above, by selecting a glass composition having a working point in an appropriate range according to the firing temperature in the sealing step, a sealing member for sealing well the front plate and the back plate is provided. be able to.

The plasma display panel, the method for producing the same, and the glass composition according to the present invention are more effective when the firing temperature is in the range of 400 to 500 ° C.

Further, in the plasma display panel and the manufacturing method thereof and the glass composition according to the present invention, the glass composition is Pb, Bi, Zn, P, Sn,
It is more preferable when it contains at least one oxide selected from Te, V, and Cu.

Further, the plasma display panel, the method for producing the same, and the glass composition according to the present invention can be applied to the case where the sealing member contains a filler made of low expansion ceramics.

[0026]

BEST MODE FOR CARRYING OUT THE INVENTION [First Embodiment] The First Embodiment
The plasma display panel in 1) basically has the same configuration as that in FIGS. 1 to 3 described above, but limits the temperature conditions for sealing the front plate and the back plate. That is, the glass composition constituting the sealing member is sealed at a temperature in the range of 70 ° C lower than the working point and 30 ° C higher than the working point depending on the working point of the glass composition. It is obtained by the following manufacturing method.

Next, a method of manufacturing the plasma display panel according to the first embodiment will be described.

<Preparation of Front Plate> First, a front glass substrate made of soda lime glass was coated with a paste for forming a transparent conductive film by screen printing, and then a bus electrode for supplementing the conductivity was formed. The paste is applied by screen printing and baked to form a display electrode. The transparent conductive film is made of, for example, ITO,
The bus electrode is, for example, an Ag film or Cr / Cu / Cr 3
It consists of a layer structure film. The transparent conductive film and the bus electrode can be formed by a photo-etching method as well as a screen printing method.

Then, a paste containing a glass for dielectrics (for example, PbO-B ₂ O ₃ based lead glass) is applied by a screen printing method so as to cover the display electrodes, and baked to form a dielectric layer. To do. This dielectric layer may be formed by arranging a dielectric glass formed into a sheet shape with a resin and a solvent or the like on a display electrode and firing the glass.

Further, a protective layer made of magnesium oxide is formed on the surface of this dielectric layer by a vapor deposition method or a CVD method to prepare a front plate.

<Production of Back Plate> Next, a paste for electrodes (for example, Ag or Cr / Cu / Cr) is applied in stripes at regular intervals on a back glass substrate made of soda lime glass by a screen printing method or the like. Then, the address electrodes are formed by firing.

Then, a paste containing a dielectric glass (for example, PbO-B ₂ O ₃ based lead glass) is applied on the address electrodes by screen printing and fired to form a dielectric layer.

Next, partition walls are formed on the dielectric layer for each gap between the address electrodes. The partition wall can be formed by repeatedly screen-printing a paste containing a glass material and firing the paste.

The address electrodes, the dielectric layers, and the partition walls may be formed by a photoetching method or the like.

Next, pastes containing phosphors of red, green and blue colors are applied by screen printing to the spaces between the partition walls and baked to form phosphor layers of respective colors. As an example of each color phosphor used here, a red phosphor is Y ₂ O ₃ : Eu, a green phosphor is Zn ₂ SiO ₄ : Mn,
The blue phosphor includes BaMgAl ₁₀ O ₁₇ : Eu and the like.

<Sealing Step> A glass composition (for example, PbO)
Powder of a sealing member containing —B ₂ O ₃ based lead glass) is kneaded with a resin and a solvent, and the obtained paste is applied to the peripheral portion of the back plate prepared as described above by screen printing.
This is pre-baked at about 350 ° C. to remove the resin component and the like contained in the paste to form a layer of the sealing member. afterwards,
The front plate and the rear plate are overlapped so that the display electrodes and the address electrodes are orthogonal to each other and baked to soften the sealing member and cool and fix it to perform sealing.

The sealing member may be formed on at least one of the front plate and the rear plate, and is not limited to the above method.

In order to satisfactorily seal the front plate and the back plate, it is necessary to heat the sealing member containing the glass composition to appropriately soften it, and how to determine the treatment temperature at that time. What you do is important.

One of the characteristic temperatures of glass is called the softening point, which is the temperature determined by measurement according to JIS test method R3104. Specifically, it refers to the temperature at which a glass rod having a diameter of 0.55 to 0.75 mm and a length of 235 mm is heated and the rate of elongation due to its own weight becomes 1 mm / min. The viscosity of glass at the softening point is about 10 ^6.
6 Pa · s. When the front plate and the back plate are sealed, if heating is performed at the softening point of the glass composition constituting the sealing member, the sealing member does not soften sufficiently and the sealing cannot be completed. .

In view of the above, the first embodiment is characterized in that the glass composition is sealed within a certain temperature range including the working point. The working point is that the viscosity of the glass is 10
^The temperature is ³ Pa · s, which is higher than the softening point and has a certain degree of fluidity.

If the glass composition is sufficiently softened so that the front plate and the back plate are in a good wetting state, good sealing can be achieved. For this purpose, it is preferable to seal at a temperature 70 ° C. lower than the working point of the glass composition.

However, if the temperature at the time of sealing is too high, the viscosity of the glass composition becomes low, the shape of the sealing member cannot be maintained due to the high fluidity of the sealing member, and it spreads as shown in FIG. The back plate cannot be sealed. In order to satisfactorily seal the front plate and the back plate, it is preferable to seal at a temperature 30 ° C. higher than the working point of the glass composition as an upper limit.

From the above, firing in the sealing step in the plasma display panel is performed at a temperature 70 ° C. lower than the working point of the glass composition constituting the sealing member,
It is preferable to seal at a temperature in the range of 30 ° C. higher than the working point or lower. The reason why the temperature of the sealing step is limited will be described in detail in Example 1 described later.

Here, it goes without saying that it is necessary to prevent other members of the plasma display panel from being adversely affected by heat such as deterioration and deterioration in the sealing step. In a general plasma display panel, it is desirable to perform sealing at a temperature of 500 ° C. or lower.

The sealing with the sealing member containing the glass composition is not limited to the method using the paste kneaded with the resin and the solvent as described above. For example, a stick-shaped or frame-shaped sealing member made of a glass composition is prepared, and the sealing member is placed on the peripheral portion of the back plate and heated and softened to perform the same sealing as described above.

Further, since the firing temperature in the sealing step is limited to 500 ° C. or lower, the glass composition contains Pb, Bi and Z.
It is preferable to use a glass composition containing at least one oxide selected from n, P, Sn, Te, V and Cu.

Although the above-mentioned sealing member may consist of only the glass composition, it may be appropriately used for a certain purpose.
It may be a mixture with a low expansion ceramics filler, a pigment, or the like.

Further, if the glass composition is appropriately softened at the time of sealing and can be hermetically sealed, there is no problem with crystallization after sealing, and crystallized glass may be used.

<Completion of Plasma Display Panel> After the above, the gas is once released by firing while exhausting from the inner space of the sealed front plate and back plate. And
A discharge gas is sealed in this internal space at a predetermined pressure. Next, driving circuits for driving the display electrodes and the address electrodes are connected to complete the plasma display panel.

It should be noted that the members used in the plasma display panel described above can basically be made of conventionally used materials.

The structure of the plasma display panel is basically as described above, but is not limited to these.

Further, the present invention does not limit the discharge method of the plasma display panel, but may be AC type or D type.
It can be applied to any of C type.

[Second Embodiment] The plasma display panel according to the second embodiment is basically the same as that shown in FIG.
3 to 3, but the glass composition constituting the sealing member used for sealing the front plate and the back plate is limited to one having a specific working point in accordance with the firing temperature. That is, the method is characterized in that a sealing member containing a glass composition having a working point of 30 ° C. lower than the firing temperature of the sealing step and 70 ° C. higher than the firing temperature is used for sealing, and the following production is performed. Obtained by the method.

Next, a method of manufacturing the plasma display panel according to the second embodiment will be described. In addition,
The manufacturing of the front plate, the manufacturing of the rear plate, and the completion of the plasma display panel other than the sealing step are the same as the method described in the first embodiment, and therefore the description thereof is omitted.

<Sealing Step> A glass composition (for example, PbO-B) is formed on the peripheral portion of the back plate manufactured in the same manner as in the first embodiment.
A paste obtained by kneading a powder of a sealing member containing ₂ O ₃ based lead glass) with a resin and a solvent is applied by screen printing. This is pre-baked at about 350 ° C. to remove the resin component and the like contained in the paste to form a layer of the sealing member. After that, the front plate and the rear plate are overlapped so that the display electrodes and the address electrodes are orthogonal to each other, and baked to soften the sealing member and cool and fix it for sealing.

The sealing member may be formed on at least one of the front plate and the rear plate, and is not limited to the above method.

As described above, in the sealing step, it is necessary to perform the heat treatment at a temperature below the temperature at which other members are not hindered. Therefore, the firing temperature is limited depending on the members used. On the other hand, impurities such as impure gas that may adversely affect the emission characteristics and discharge characteristics of the plasma display panel may be adsorbed on each member of the front plate and the back plate and the sealing member. In order to remove it in the sealing step, it is desirable to perform firing at a certain temperature or higher. For these reasons, the firing temperature in the sealing step is generally determined in the range of 400 to 500 ° C.

When the firing temperature is limited in this way and the working point of the glass composition constituting the sealing member is specified, a suitable sealing member can be selected.

In order to sufficiently soften the sealing member at the firing temperature in the sealing step, it is necessary to use a glass composition having a low working point. In order to improve the wetting of the sealing member with respect to the front plate and the rear plate in the sealing step and to perform good sealing, the working point of the glass composition is 7
It is preferable that the upper limit is 0 ° C. higher temperature.

However, if the working point of the glass composition is too low, the shape of the sealing member cannot be maintained due to the high fluidity of the sealing member, and it spreads as shown in FIG. It will be possible. In order to satisfactorily seal the front plate and the back plate, the working point of the glass composition preferably has a lower limit of 30 ° C. lower than the firing temperature.

From the above, the working point of the glass composition in Embodiment 2 is 30 ° C. or more lower than the firing temperature in the sealing step and 70 ° C. or more higher than the firing temperature. It is a glass composition characterized by the above. The reason why the working point range of the glass composition is limited in this way will be described in detail in Example 2 described later.

Here, the sealing with the sealing member containing the glass composition is not limited to the method using the paste kneaded with the resin and the solvent as described above. For example, a stick-shaped or frame-shaped sealing member made of a glass composition is prepared, and the sealing member is placed on the peripheral portion of the back plate and heated and softened to perform the same sealing as described above.

Further, since the firing temperature in the sealing step is limited to 500 ° C. or lower, the glass composition contains Pb, Bi and Z.
It is preferable to use a glass composition containing at least one oxide selected from n, P, Sn, Te, V and Cu.

Although the above-mentioned sealing member may consist of only the glass composition, it may be appropriately used for a certain purpose.
It may be a mixture with a low expansion ceramics filler, a pigment, or the like.

Further, if the glass composition is appropriately softened at the time of sealing and can be hermetically sealed, there is no problem with crystallization after sealing, and crystallized glass may be used.

After the front plate and the back plate are sealed as described above, the plasma display panel is completed in the same manner as in the first embodiment.

The members used in the above plasma display panel can basically be made of conventionally used materials.

The structure of the plasma display panel is basically as described above, but is not limited to these.

Further, the present invention does not limit the discharge method of the plasma display panel, but may be AC type or D type.
It can be applied to any of C type.

[0070]

EXAMPLES The present invention will now be described in detail with reference to examples, but the present invention is not limited to these examples.

[Example 1] As an example of the method for manufacturing a plasma display panel according to the first embodiment of the present invention, the following sealing members (No. 1 to No. 1) containing a glass composition were prepared.
3) is used to seal the front and back plates at various temperatures,
A plasma display panel was produced. The manufacturing method other than the sealing step is the same as the method described in the first embodiment.

Sealing member No. The glass composition constituting No. 1 is, by weight%, PbO: 75%, SiO ₂ : 3%, B ₂ O.
_It consists of ₃ : 10%, ZnO: 11%, and Al ₂ O ₃ : 1%, and the working point is 460 ° C. 80% by weight of the powder of this glass composition and 20% by weight of a filler composed of cordierite were mixed, and nitrocellulose and isoamyl acetate were added to form a paste.

Sealing member No. The glass composition constituting 2 is, by weight%, PbO: 78%, SiO ₂ : 1%, B ₂ O.
₃ : 11%, ZnO: 8%, Al ₂ O ₃ : 1%, BaO:
It consists of 1% and the working point is 455 ° C. Filler 2 consisting of 80% by weight of powder of this glass composition and lead titanate
0% by weight was mixed, and nitrocellulose and isoamyl acetate were added to form a paste.

Sealing member No. The glass composition constituting No. 3 is, by weight%, PbO: 80%, SiO ₂ : 4%, B ₂ O.
_It consists of ₃ : 9%, ZnO: 2%, CdO: 5%, and the working point is 450 ° C. 80% by weight of the powder of this glass composition and 20% by weight of a filler composed of cordierite were mixed, and nitrocellulose and isoamyl acetate were added to form a paste.

The pastes of the sealing members (Nos. 1 to 3) described above were applied to the respective back plates by screen printing,
Calcination was performed at 350 ° C. Next, the front plate and the back plate were overlapped with each other, held at various temperatures for 10 minutes, and fired.

Table 1 shows the working points of the glass compositions constituting the sealing members (Nos. 1 to 3), the firing temperature at the time of sealing, and the results after sealing. . The results after the sealing are shown by ◯ when the front plate and the back plate were well sealed, and the airtightness required for the plasma display panel was satisfied, and when the lighting display was possible, it was indicated by ◯, and when it was not, by x.

The working point of the glass composition is to measure the viscosity by examining the change in the load applied when pulling up the platinum spheres in the glass melt to determine the temperature at which the viscosity reaches 10 ³ Pa · s. Got by

[0078]

[Table 1]

As can be seen from the results shown in Table 1, No.
No. 1 (working point: 460 ° C.) is 390 to 490 ° C. Two
(Working point: 455 ° C.) is 385 to 485 ° C., No. Three
(Working point: 450 ° C.) When the firing was performed at 380 to 480 ° C., good sealing could be achieved. Whichever sealing member is used, when it is fired at a temperature of 70 ° C. lower than the working point of the glass composition and 30 ° C. higher than the working point, the sealing member is appropriately softened and good sealing is obtained. It was possible.

[Example 2] As an example of the method for manufacturing a plasma display panel in accordance with the second embodiment of the present invention, sealing containing a glass composition having various working points depending on the firing temperature in the sealing step. The front plate and the back plate were sealed by using the member to produce a plasma display panel.
The manufacturing method other than the sealing step is the same as the method described in the first embodiment.

First, each glass composition constituting the sealing member was prepared by mixing and mixing predetermined raw materials, and then placed in a platinum crucible, melted in an electric furnace at 1000 to 1100 ° C. for 1 hour, and rapidly cooled by a roller. It was produced by The powder of the glass composition and the filler were mixed in a predetermined weight ratio, and nitrocellulose and isoamyl acetate were added to form a paste for the sealing member. Each of these pastes was applied to the back plate by screen printing, and calcined at 350 ° C. Next, the front plate and the back plate were overlapped and held at 450 ° C. for 10 minutes for firing.

Table 2 shows a sealing member (No. 5 to 5) which is an example of the glass composition according to the second embodiment of the present invention.
8) and the sealing members (Nos. 4 and 9) of the comparative example. The composition ratio and working point by weight% of the glass composition constituting each sealing member, the composition ratio with the filler made of cordierite or lead titanate, and the thermal expansion coefficient of the sealing member are shown. The results after sealing are also described. The result after sealing is
The front plate and the back plate were well sealed, and the airtightness required for the plasma display panel was shown. The ones that could be lit and displayed were indicated by ◯, and the ones that were not displayed were indicated by x.

The working point of the glass composition is to measure the viscosity by examining the change in the load applied when pulling up the platinum spheres in the glass melt, and determine the temperature at which the viscosity reaches 10 ³ Pa · s. Got by

As for the coefficient of thermal expansion, the coefficient of linear expansion was measured when the rod produced by firing the sealing member was heated at 5 ° C./min, and the average coefficient of thermal expansion at 30 to 300 ° C. was calculated. .

[0085]

[Table 2]

As can be seen from the results of (Table 2), when the baking temperature was 450 ° C., when a sealing member containing a glass composition having a working point of 420 to 520 ° C. was used,
Good sealing was achieved. That is, when a sealing member containing a glass composition having a working point in the range of 30 ° C. lower than the firing temperature of the sealing step and 70 ° C. higher than the firing temperature is used, the sealing member is It softened moderately and good sealing was possible.

[0087]

As described above, according to the plasma display panel of the present invention, the method for manufacturing the same, and the glass composition, the electrodes, the dielectrics, and the partition walls are disposed between the front plate and the back plate facing each other, and the front plate and the back plate are disposed. It is possible to provide a plasma display panel in which the face plate is well sealed with the sealing member.

[Brief description of drawings]

FIG. 1 is a sectional view of a peripheral portion of a plasma display panel common to the embodiments of the present invention.

FIG. 2 is a partial sectional perspective view of a plasma display panel.

FIG. 3 is a top view of a plasma display panel.

FIG. 4 is a sectional view of a peripheral portion of a conventional plasma display panel.

FIG. 5 is a sectional view of a peripheral portion of a conventional plasma display panel.

[Explanation of symbols]

1 Front plate 2 Front glass substrate 3 Transparent conductive film 4 bus electrodes 5 display electrodes 6 Dielectric layer 7 Dielectric protective layer 8 Back plate 9 Rear glass substrate 10 address electrodes 11 Dielectric layer 12 partitions 13 Phosphor layer 13 (R) Phosphor layer (R) 13 (G) Phosphor layer (G) 13 (B) Phosphor layer (B) 14 discharge space 15 Sealing member

Continued front page    F-term (reference) 4G062 AA08 AA09 BB04 DA01 DA02                       DA03 DA10 DB01 DB02 DB03                       DC01 DC02 DC03 DC04 DD01                       DD02 DE01 DE02 DE03 DE04                       DF01 DF02 DF03 DF04 DF05                       DF06 DF07 EA01 EA10 EB01                       EC01 ED01 EE01 EF01 EG01                       EG02 EG03 FA01 FA02 FA03                       FA10 FB01 FC01 FD01 FE01                       FE02 FF01 FF02 FG01 FH01                       FJ01 FK01 FL01 GA01 GA02                       GA03 GA04 GA10 GB01 GC01                       GD01 GD02 GE01 HH01 HH03                       HH04 HH05 HH07 HH09 HH11                       HH13 HH15 HH17 HH20 JJ01                       JJ03 JJ05 JJ07 JJ10 KK01                       KK03 KK05 KK07 KK10 MM08                       MM25 PP06 PP09                 5C012 AA09 BC03                 5C040 HA01 HA02 JA22 KA09 KA10                       KB02 KB03 KB11 KB19 LA17                       MA23

Claims (14)

[Claims] 1. A method of manufacturing a panel in which an electrode, a dielectric, and a partition wall are provided between a front plate and a back plate facing each other, and the front plate and the back plate are sealed by a sealing member. A method for producing a plasma display panel, which comprises sealing the glass composition constituting the member at a temperature in the range of 70 ° C. lower than the working point and 30 ° C. higher than the working point. 2. A method for manufacturing a panel in which an electrode, a dielectric and a partition wall are provided between a front plate and a back plate facing each other, and the front plate and the back plate are sealed by a sealing member, which comprises a sealing step. 30 ° C. lower than the firing temperature of 70 ° C. or more and 70 ° C. above the firing temperature
A method for manufacturing a plasma display panel, which comprises sealing with a sealing member containing a glass composition having a working point of not higher than ℃. 3. The method of manufacturing a plasma display panel according to claim 2, wherein the firing temperature is 400 to 500 ° C. 4. The glass composition comprises Pb, Bi, Zn,
4. At least one kind of oxide selected from P, Sn, Te, V and Cu is contained, The claim 1, 2 or 3.
A method for manufacturing a plasma display panel according to item 1. 5. The method for producing a plasma display panel according to claim 1, wherein the sealing member contains a filler made of low expansion ceramics. 6. A plasma display panel in which an electrode, a dielectric, and a partition wall are disposed between a front plate and a back plate facing each other, and the front plate and the back plate are sealed by a sealing member. 70 ° C from the working point of the glass composition constituting the
A plasma display panel, which is sealed at a temperature in the range of a low temperature to a temperature 30 ° C. higher than the working point. 7. A plasma display panel in which an electrode, a dielectric, and a partition wall are provided between a front plate and a back plate facing each other, and the front plate and the back plate are sealed by a sealing member. A plasma display panel, which is sealed with a sealing member containing a glass composition having a working point that is 30 ° C. lower than the firing temperature and 70 ° C. higher than the firing temperature. 8. The plasma display panel according to claim 7, wherein the firing temperature is 400 to 500 ° C. 9. The glass composition comprises Pb, Bi, Zn,
9. At least one oxide selected from P, Sn, Te, V and Cu is included, and the oxide is contained in the oxide film.
Plasma display panel according to. 10. The sealing member contains a filler made of low expansion ceramics.
Or the plasma display panel according to item 9. 11. A plasma display panel in which an electrode, a dielectric, and a partition wall are provided between a front plate and a back plate facing each other, and the front plate and the back plate are sealed by a sealing member.
A glass composition, which is a composition constituting the sealing member, wherein a working point is at least 30 ° C. lower than the firing temperature of the sealing step and at most 70 ° C. higher than the firing temperature. . 12. The glass composition according to claim 11, wherein the firing temperature is 400 to 500 ° C. 13. Pb, Bi, Zn, P, Sn, Te,
The glass composition according to claim 11 or 12, containing at least one oxide selected from V and Cu. 14. The sealing member contains a filler made of low-expansion ceramics.
Or the glass composition as described in 13 above.