JP3695527B2 - Plasma display panel and manufacturing method thereof - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a plasma display panel and a method for manufacturing the same, and more particularly to a technique for exhausting a discharge space formed between two substrates on the front side and the back side and introducing a discharge gas into the discharge space.
[0002]
[Prior art]
A plasma display panel (PDP) is basically a front glass having a plurality of long electrodes on one main surface and a back glass substrate having a plurality of long electrodes on one main surface. Two glass substrates are separated from each other by a predetermined distance so that the electrode forming surface of the front glass substrate and the electrode forming surface of the rear glass substrate face each other, and the electrodes of both glass substrates are orthogonal to each other. The two glass substrates are hermetically sealed at the edges of the glass substrate, and the gas is discharged from the gas-tight hollow space (discharge space) formed between the two glass substrates. Is introduced to a predetermined pressure and sealed.
[0003]
FIG. 2 shows a cross-sectional view of an example of a PDP. Referring to FIG. 2, the PDP shown in FIG. 2 is a matrix display AC type three-electrode surface discharge type PDP, and the front glass substrate 1 and the rear glass substrate 2 face each other at a distance. ing. Between the two glass substrates 1 and 2, a frame-shaped sealing layer 3A made of a low-melting glass layer is disposed on the edge of each glass substrate. The two glass substrates on the front side and the back side are hermetically fixed (sealed) to the sealing layer 3A at the edge of each glass substrate to form an airtight discharge space 4, and this discharge space 4, a rare gas for discharge, such as a mixed gas of Ar and Xe, is sealed at a predetermined pressure.
[0004]
On the inner surface of the front glass substrate 1, a plurality of X display electrodes and Y display electrodes for causing surface discharge are run in the horizontal direction on the paper surface (represented by the X display electrode 5 in FIG. 2). ) The X display electrode and the Y display electrode are both long electrodes, and run alternately every other line in parallel. One X display electrode and one Y display electrode adjacent thereto Thus, one scan line is formed. On the X (Y) display electrode 5, a dielectric layer 6 that covers the electrode and an MgO film 7 that protects the dielectric layer 6 are provided.
[0005]
On the other hand, on the inner surface of the rear glass substrate 2, a plurality of long address electrodes 8 run in parallel in a direction orthogonal to the X (Y) display electrode 5 (direction perpendicular to the paper surface). . Between each address electrode 8, a long partition wall 9 having a height of about 100 to 200 μm is provided along the address electrode 8, and the phosphor film 10 is formed on the upper surface of the address electrode 8, the partition wall 9. And the exposed surface of the back side glass substrate 2 are provided.
[0006]
In the above PDP, when viewed from a direction perpendicular to the front glass substrate 1 or the rear glass substrate 2, the intersection of the X display electrode and Y display electrode pair and the address electrode forms a row and a column. Each of the intersections arranged in the matrix form a unit light emitting region (pixel). That is, a region where the intersections of the X and Y display electrode pairs and the address electrodes are arranged in a matrix is a display region.
[0007]
Here, the above-described barrier rib 9 is in contact with the front glass substrate 1, and physically extends the extending direction of the X (Y) display electrode 5 in the discharge space 4 in units of address electrodes. This partition wall 9 is for preventing erroneous discharge between adjacent address pixels and causing crosstalk, and is indispensable for obtaining a good display image quality.
[0008]
The above-described PDP is generally manufactured by the following process. First, an X (Y) display electrode 5, a dielectric layer 6, an MgO film 7, an address electrode 8, a partition wall 9, and a phosphor film 10 are individually formed on the front side glass substrate 1 and the back side glass substrate 2. To do. Thereafter, a frame-shaped sealing layer 3A is formed on the electrode forming surface of one glass substrate, and the other glass substrate is overlaid with the electrode forming surface inside, and heat treatment is performed in a state where they are pressed against each other. . As a result, the edge of the front glass substrate 1 and the sealing layer 3A and the edge of the rear glass substrate 2 and the sealing layer 3A are hermetically fused, and an airtight hollow discharge space 4 is formed. .
[0009]
Next, the inside of the discharge space 4 is evacuated, and a discharge gas is introduced to a predetermined pressure, followed by sealing.
[0010]
Thus, in manufacturing the PDP, a process of exhausting the discharge space, a process of introducing a discharge gas into the discharge space after exhaust, and a process of sealing the discharge space are indispensable. An example of a conventional method (conventional example 1) for exhausting the discharge space, introducing gas into the discharge space, and sealing is described in Japanese Patent Laid-Open No. 8-255573. FIG. 3 shows again FIG. 2 of the above publication. In the following, for convenience of explanation, the reference numerals and names in the figures may be different from those used in the above publication. With reference to FIG. 3, the back side glass substrate 2 is provided with one through-hole 12 </ b> A passing through the inside and outside of the discharge space 4 in a region outside the display region 11 and inside the sealing layer 3 </ b> A. In the case of the example shown in this figure, it is provided at the corner on the left front side of the rectangular display area. A chip tube 13 </ b> A, which is a hollow glass tube, is fused to the through-hole 12 </ b> A perpendicularly to the rear glass substrate 2 on the surface opposite to the discharge space 4. 3 shows the completed PDP, the tip tube 13A has a shape after being sealed at the tip portion. However, in the middle of the manufacturing process, the tip tube is formed on the upper surface and the lower surface. Both end faces are open cylinders.
[0011]
In manufacturing the PDP according to Conventional Example 1, the above-described tip tube 13A is used for exhausting the discharge space 4 and introducing the discharge gas. That is, the front glass substrate 1 and the rear glass substrate 2 are fused and integrated to form the discharge space 4, and then the through-hole 12A provided in the rear glass substrate prior to the discharge of the discharge space. In addition, the tip tube 13A having both end surfaces open is fused in advance. Then, an exhaust device (not shown) and a discharge gas cylinder are connected to the tip tube 13A in a switchable manner. After the discharge space is exhausted and the discharge gas is introduced, the tip tube 13A is melted and sealed. .
[0012]
By the way, the dimension of the gap of the discharge space 4 (distance between the front glass substrate 1 and the rear glass substrate 2: almost the height of the barrier ribs 9) is 100 regardless of the plane dimension of the screen. It is about -200 micrometers. Therefore, in the case of Conventional Example 1, as the screen size increases, there arises a problem that it becomes difficult to ensure and clean a sufficient degree of vacuum inside the discharge space by exhaust. In particular, since the partition wall 9 that partitions the discharge space 4 by address unit increases the exhaust resistance, impure gas tends to remain in the pixel space far from the through hole 12A. If the inside of the discharge space is not sufficiently cleaned by the exhaust, the gas composition in the pixel does not become the intended composition even if the discharge gas having a predetermined composition is filled after the exhaust. And the display operation becomes unstable.
[0013]
In order to improve the unstable phenomenon of the display operation caused by the distance from the through hole 12A as described above, for example, as shown in FIG. 4, it is considered to increase the exhaust efficiency by providing a plurality of through holes 12A. (Conventional example 2). In the case of the PDP shown in FIG. 4, one through hole is provided in each of the four corners of the rectangular discharge space, and the tip tubes 13B to 13E are fused to each one.
[0014]
However, if the number of through-holes and thus the number of tip tubes are increased, the attachment of the tip tubes 13B to 13E to the rear glass side substrate, the connection between the tip tubes 13B to 13E and the exhaust device or the gas cylinder, the tips A series of exhaust, gas introduction, and sealing operations such as sealing of the tubes 13B to 13E are required as many as the number of chip tubes, which not only increases the number of work steps but also increases the number of operation errors and associated defects. .
[0015]
Therefore, in the above-mentioned Japanese Patent Application Laid-Open No. 8-255573, the number of through-holes provided in the back glass substrate is made plural, and the tip tube and the exhaust device are connected by devising one chip tube. It is simple, and the difference in the exhaust state in the discharge space due to the difference in distance from the tip tube is reduced (conventional example 3). FIG. 5 shows again FIG. 1 of the above publication. Referring to FIG. 5, the back side glass substrate 2 is provided with two through holes 12 </ b> L and 12 </ b> R separately on the left and right sides outside the display area. Another glass substrate (gas reservoir glass substrate) 14 is further arranged on the side of the rear glass substrate 2 opposite to the discharge space, and the gas reservoir glass substrate 14 has a through hole. One 12B is provided.
[0016]
The gas reservoir glass substrate 14 and the back glass substrate 2 are hermetically fused to a frame-shaped sealing layer 3B made of low-melting glass disposed on the edge of each substrate, and an airtight gas reservoir. A space 15A is formed. The gas reservoir space 15 </ b> A and the discharge space 4 communicate with each other through the two through holes 12 </ b> L and 12 </ b> R provided in the rear glass substrate 2.
[0017]
In the PDP according to Conventional Example 3, the tip tube 13F is fused to the through hole 12B of the gas reservoir glass substrate at an appropriate stage until the discharge process of the discharge space 4, and the tip tube 13F and the gas reservoir are fused. The discharge space 4 is exhausted through the space 15A, and a discharge gas is introduced. Therefore, the tip tube and the exhaust device or gas cylinder need only be connected at one location. Moreover, since the inside of the discharge space 4 is exhausted by the plurality of through holes 12L and 12R provided at appropriate positions on the back side glass substrate 2, the difference in the exhaust state in the discharge space due to the distance from the tip tube 13F is As in the conventional example 2 (see FIG. 4), the size can be reduced.
[0018]
[Problems to be solved by the invention]
As described above, according to the technique of Conventional Example 3, the connecting operation between the tip tube and the exhaust device is simple, and the difference in the exhaust state in the discharge space due to the distance from the tip tube can be reduced.
[0019]
However, in the PDP according to Conventional Example 3, since the gas reservoir glass substrate 14 has the same size as the rear glass substrate 2, the weight of the entire PDP increases. In addition, the thickness of the entire PDP increases by the gap (the distance between the back-side glass substrate 2 and the gas reservoir glass substrate 14) of the gas reservoir space 15A. Furthermore, spacers 16 for defining the distance between the rear glass substrate 2 and the gas reservoir glass substrate 14 must be disposed on the inner surface of the gas reservoir glass substrate 14, even just. For this reason, the manufacturing process is increased and the manufacturing cost is increased. However, if the panel is increased in size, the gas reservoir glass substrate 14 is increased and the bending is increased accordingly. Therefore, the spacer 16 is accurately arranged in a wide range. And the manufacturing process is complicated by the control.
[0020]
Eventually, the overall weight and thickness of the panel will increase, and the manufacturing cost will increase. This is a very important problem for a PDP that is a promising candidate for a large wall-mounted TV.
[0021]
Therefore, according to the present invention, the connecting operation between the tip tube and the exhaust device when exhausting the discharge space is simple, and there is no unevenness in the exhaust state due to the distance from the tip tube in the discharge space. An object of the present invention is to provide a PDP that is less likely to increase in weight and thickness of the entire panel than a PDP and that can be easily manufactured, and a method for manufacturing the PDP.
[0022]
[Means for Solving the Problems]
The plasma display panel of the present invention was obtained by facing a front side substrate having electrodes on one main surface and a back side substrate having electrodes on one main surface at a predetermined distance, and sealing the edges of each substrate. In the plasma display panel in which the discharge gas is sealed in the discharge space, the back substrate is provided on the outer side of the display area, and has a plurality of through holes passing through the front and back sides, and the opposite side of the discharge space. A box-shaped, ventilated duct with a bottom and a lid, hermetically fixed on the surface, covering the through-hole around the edge of the back-side substrate in a corridor, and the internal space is independent of the beginning and end A vent conduit having a structure connected to an endless, and a tip tube provided in the vent conduit for exhausting the discharge space and introducing gas into the discharge gas when the discharge gas is sealed. Features.
[0023]
The plasma display panel includes a process of manufacturing a front substrate having an electrode on the one main surface, and an electrode on the one main surface, and the plurality of through-holes outside the region to be the display region. Manufacturing the back side substrate having the above-mentioned structure, the front side substrate and the back side substrate face each other with a predetermined distance with the electrode forming surface of each substrate facing inside, and the edges of each substrate are hermetically sealed A plasma display panel manufacturing method comprising: a sealing process; and a sealing process in which a discharge gas is introduced into the discharge space after sealing the discharge space formed between the front substrate and the back substrate and sealed. In the method, the step of previously forming the bottomless covered box-shaped vent conduit and the tip tube before sealing is integrated, and the vent conduit integrally formed with the tip tube is previously formed on the back side substrate. What is the electrode forming surface? A process of fixing the airtightly so as to cover the through-hole on the pair-side surface, and in the sealing process, the discharge space is exhausted through the tip tube, and the discharge space is exhausted After the discharge gas is introduced through the chip tube, the chip tube is sealed, and the plasma display panel can be manufactured by the manufacturing method.
[0024]
Alternatively, a process of integrally forming the bottomless covered box-shaped ventilation conduit and the tip tube before sealing is provided in advance, and in the sealing step, the front substrate and the rear substrate are connected to each substrate. At the same time hermetically sealing at the edge, the vent conduit formed integrally with the tip tube is hermetically sealed on the surface of the back side substrate opposite to the electrode forming surface so as to cover the through hole. In the sealing process, the discharge space is evacuated through the tip tube, the discharge gas is introduced into the discharged discharge space through the tip tube, and then the tip tube is sealed. The plasma display panel can be manufactured by a method for manufacturing a plasma display panel.
[0025]
DETAILED DESCRIPTION OF THE INVENTION
Next, embodiments of the present invention will be described with reference to the drawings. FIG. 1 is a perspective view showing an entire PDP according to an embodiment of the present invention and a cross-sectional view taken along line Aa. Referring to FIG. 1, the PDP according to this embodiment is a matrix display AC type three-electrode surface discharge type PDP, and the internal structure of the discharge space 4 is the same as that of the general PDP shown in FIG. The same.
[0026]
In terms of appearance, the PDP according to the present embodiment is provided with a ventilation conduit 17 on the surface opposite to the discharge space of the rear glass substrate 2 with respect to Conventional Example 1, Conventional Example 2, and Conventional Example 3. The difference is that one tip tube 13G is provided on the side wall of the ventilation conduit 17 in a direction parallel to the rear glass substrate 2. Also, the manufacturing method for realizing the appearance feature is different. Therefore, the following description will focus on the above differences.
[0027]
The back glass substrate 2 in the PDP according to the present embodiment includes two through holes 12L and 12R in a region outside the display region and inside the sealing layer 3A. These two through holes are arranged one by one in the vicinity of the center of the short sides facing each other in the rectangular display area.
[0028]
The rear glass substrate 2 is also provided with a ventilation conduit 17 on the surface opposite to the discharge space 4. The ventilation conduit 17 is a glass molded product and has a bottomless covered box structure, and surrounds the edge of the rear side glass substrate 2 in a corridor shape and covers the two through holes 12L and 12R. The beginning and end of the corridor are connected, so the space inside the vent conduit communicates endlessly. The ventilation conduit 17 has a minimum size such that the exhaust resistance of the endless hollow space (gas reservoir space 15B) formed between the rear side glass substrate 2 and the exhaust resistance of the discharge space 4 is smaller.
[0029]
On the side wall of the ventilation conduit 17, one tip tube 13 </ b> G, which is also a glass molded product, is provided in a direction parallel to the rear glass substrate 2. Since FIG. 1A shows a completed PDP, the tip tube 13G is in a sealed state. However, the tip tube 13G has exhaust in the discharge space and introduction of discharge gas. Until the end, the cylinder is open at both ends.
[0030]
In this embodiment, the gas reservoir space 15B formed by the rear glass substrate 2 and the vent conduit 17 and the discharge space 4 between the front glass substrate 1 and the rear glass substrate 2 are the rear glass substrate. The two through holes 12L and 12R provided in 2 communicate with each other. Therefore, when the discharge space 4 is exhausted and the discharge gas is introduced in the manufacturing process of the PDP, the exhaust tube and the gas cylinder of the discharge gas are connected to the tip tube 13G so that the tip tube 13G can be switched. The gas is introduced into the discharge space after evacuation. At the time of exhaust, the exhaust resistance of the gas reservoir space 15B is smaller than the exhaust resistance of the discharge space 4 partitioned by the partition walls 9, so that there are a plurality of discharge spaces 4 (in this case, two in this case). ) Is individually connected to each of the through holes 12L and 12R and exhausted at the same time. Therefore, unlike the case of exhausting with only one through hole as in the conventional example 1, the distance between the through hole and the farthest part is shortened, and there is only one tip tube. The discharge space 4 is exhausted efficiently and uniformly. In addition, since the exhaust device and the tip tube can be connected to only one place, the operation can be performed quickly.
[0031]
The PDP according to the present embodiment is manufactured as follows. First, each constituent member is individually provided on each of the front glass substrate 1 and the back glass substrate 2 by a conventionally known method. That is, the X (Y) display electrode 5, the dielectric layer 6 and the MgO film 7 are sequentially formed on the front glass substrate 1. Further, the address electrodes 8, the barrier ribs 9 and the phosphor film 10 are sequentially formed on the rear glass substrate 2. The rear glass substrate 2 is provided with through holes 12L and 12R in advance outside the display area.
[0032]
On the other hand, separately from the preparation of the front and back glass substrates described above, a bottomless, covered, box-shaped ventilation conduit 17 with a tip tube 13G is prepared. For this purpose, a carbon mold having a structure in which the tip tube 13G and the box-shaped vent conduit 17 are integrated is used, and the tip tube 13G and the vent conduit 17 are integrally molded by glass molding.
[0033]
Then, a frame-shaped sealing layer 3A made of low melting point glass having a width of about 2 to 4 mm is disposed on the edge of the surface on the electrode forming side of the front glass substrate 1 or the back glass substrate 2. Further, a low-melting glass layer 18 is disposed on the surface of the rear glass substrate 2 opposite to the discharge space 4 at a position where the ventilation conduit 17 is to be fixed.
[0034]
Then, the front side glass substrate 1 and the back side glass substrate 2 were overlapped, and the ventilation conduit 17 with the tip tube 13G was placed at a predetermined position on the back side glass substrate 2 and pressed against each other. Heat in state. As a result, the glass substrates 1 and 2, the sealing layer 3 </ b> A, and the vent conduit 17 with the tip tube are hermetically fused.
[0035]
Thereafter, the exhaust device and the gas cylinder for the discharge gas are connected to the tip tube 13G in a switchable manner by a conventionally known method. Then, the discharge space 4 is evacuated through the tip tube 13G, the ventilation conduit 17, and the two through holes 12L and 12R, the discharge gas is introduced to a predetermined pressure, the tip tube 13G is sealed, and this embodiment is performed. The PDP is completed.
[0036]
Unlike the conventional example 3, the present embodiment requires a gas reservoir glass substrate 14 (same as the rear-side glass substrate 2) for forming the gas reservoir space 15A (see FIG. 5). do not do. Therefore, the weight increase of the entire PDP is small.
[0037]
Further, the spacer 16 (same as above) for preventing the gas reservoir glass substrate 14 from being bent in the third conventional example is unnecessary. Therefore, the work for arranging the spacers is unnecessary and the manufacturing process is simple. In the case of the conventional example 3, the spacers 16 must be arranged with high precision as the PDP becomes larger, and the work becomes more sophisticated and complicated. Since there is no spacer arrangement work itself, the same work can be performed regardless of the size of the PDP.
[0038]
Further, in the present embodiment, the box-shaped ventilation conduit 17 and the tip tube 13G are integrally formed in advance, so that the step of attaching the tip tube to the ventilation conduit prior to the exhausting step is unnecessary, and the manufacturing process is simple.
[0039]
Furthermore, since the ventilation conduit 17 has a box shape and has a side wall, the tip tube 13G can be directed in a direction parallel to the rear glass substrate 2 by attaching the tip tube 13G to the side wall. Therefore, unlike the conventional example 3, the tip tube 13F (see FIG. 5) can be attached only in the direction perpendicular to the gas reservoir glass substrate 14, and the thickness of the PDP is increased accordingly. The increase in the thickness of the PDP can be small.
[0040]
In the embodiment, the ventilation conduit 17 and the tip tube 13G are formed integrally in advance, and the integrated ventilation conduit 17, the front side glass substrate 1, and the rear side glass substrate 2 are subjected to a single heat treatment. However, the order of the manufacturing process is not necessarily limited to this. That is, the integrated ventilation conduit 17 with the tip tube 13G is previously fused to the rear glass substrate 2, and then the rear glass 2 with the ventilation conduit 17 and the front glass substrate 1 are fused. May be. Alternatively, the front side glass substrate 1 and the back side glass substrate 2 may be fused first, and then the integrated ventilation conduit 17 may be fused to the back side glass substrate.
[0041]
Furthermore, even if the ventilation conduit 17 and the tip tube 13G are prepared separately, and the tip tube 13G is attached to the ventilation conduit 17 later, the tip tube 13G is placed in a direction parallel to the rear glass substrate 2. Can be attached. In the present invention, since the ventilation conduit 17 is a box shape with a bottomless lid and has a side wall, a through hole is provided in the side wall, and the tip tube 13G prepared separately in the through hole in the side wall. This is because it may be fused by a conventionally known method. Even in the case of such a manufacturing method in which the tip tube 13G is attached to the ventilation conduit 17 later, the order of fusion of the tip tube 13G, the ventilation conduit 17, the front glass substrate 1, and the rear glass substrate 2 is any. You can do as well. However, considering that the phosphor film 10 is provided on the rear glass substrate 2 and that the phosphor film 10 may be deteriorated by heat, the thermal history of the rear glass substrate 2 is minimized. It is desirable to follow the order of the manufacturing processes.
[0042]
In addition, in the Example, although the example which provided two through-holes 12L and 12R in the back side glass substrate 100 was described, of course, three or more through-holes may be sufficient. The number and the opening area should be as large as possible so as not to affect the mechanical strength of the back glass substrate 2.
[0043]
【The invention's effect】
As described above, according to the present invention, the connection work between the tip tube and the exhaust device when exhausting the discharge space is simple, and there is no unevenness in the exhaust state caused by the distance from the tip tube in the discharge space. Further, it is possible to provide a PDP that is less likely to increase in weight and thickness of the entire panel and that can be easily manufactured, and a method for manufacturing the PDP.
[Brief description of the drawings]
FIG. 1 is a perspective view and a cross-sectional view of a PDP according to an embodiment of the present invention.
FIG. 2 is a sectional view showing a basic structure of a PDP.
FIG. 3 is a perspective view of a PDP according to Conventional Example 1;
4 is a perspective view of a PDP according to Conventional Example 2. FIG.
5 is a cross-sectional view of a PDP according to Conventional Example 3. FIG.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 Front side glass substrate 2 Back side glass substrate 3A Sealing layer 4 Discharge space 5 Display electrode 6 Dielectric layer 7 MgO film 8 Address electrode 9 Partition 10 Phosphor film 11 Display area 12L, 12R Through-hole 13G Chip tube 15B Gas reservoir Space 17 Ventilation conduit 18 Low melting point glass layer

Claims (7)

Gas for discharge in the discharge space obtained by facing the front side substrate having electrodes on one main surface and the back side substrate having electrodes on one main surface with a predetermined distance and sealing the edges of each substrate In a plasma display panel encapsulating
The back side substrate is provided outside the display area, a plurality of through holes through the front and back, and
A box-shaped, ventilated duct with a bottom, which is airtightly fixed on a surface opposite to the discharge space, covering the through-hole around the edge of the back-side substrate in a gallery shape, A ventilation conduit with a structure where the space is connected to the endless end and end,
A plasma display panel comprising: a tip tube provided in the ventilation conduit for exhausting the discharge space and introducing gas into the discharge space when the discharge gas is sealed. The plasma display panel according to claim 1, wherein the tip tube and the ventilation conduit are integrally formed. 3. The plasma display panel according to claim 1, wherein the tip tube is provided on a side wall of the ventilation conduit in a direction parallel to a main surface of the back-side substrate. 4. The plasma display panel according to claim 1, wherein an exhaust resistance of the ventilation conduit is smaller than an exhaust resistance of the discharge space. 5. The plasma display panel according to claim 1, wherein the number of the tip tubes is one. The method of manufacturing a plasma display panel according to claim 1, wherein a process for manufacturing a front side substrate having an electrode on the one main surface, and an electrode on the one main surface to be the display region. A process of manufacturing a back side substrate having a plurality of through holes on the outside of the region, and the front side substrate and the back side substrate face each other with a predetermined distance with the electrode forming surface of each substrate facing inside, A sealing process for hermetically fixing the edge of the substrate, and sealing which introduces a discharge gas into the discharge space after exhausting the discharge space formed between the front substrate and the back substrate In a method of manufacturing a plasma display panel including a process,
In advance, a process of integrally forming the bottomed covered box-shaped ventilation conduit and the tip tube before sealing is provided,
In the sealing step, the front side substrate and the back side substrate are hermetically sealed at the edges of the respective substrates, and at the same time, the ventilation conduit formed integrally with the chip tube is formed on the electrode forming surface of the back side substrate. On the surface opposite to the above, the airtightly fixed so as to cover the through hole,
In the sealing process, the discharge space is evacuated through the tip tube, the discharge gas is introduced into the discharged discharge space through the tip tube, and then the tip tube is sealed off. A method for manufacturing a plasma display panel. The method of manufacturing a plasma display panel according to claim 1, wherein a process for manufacturing a front side substrate having an electrode on the one main surface, and an electrode on the one main surface to be the display region. A process of manufacturing a back side substrate having a plurality of through holes on the outside of the region, and the front side substrate and the back side substrate face each other with a predetermined distance with the electrode forming surface of each substrate facing inside, A sealing process for hermetically sealing the edge of the substrate, and after discharging the discharge space formed between the front substrate and the rear substrate, a discharge gas is introduced into the discharge space and sealed In a manufacturing method of a plasma display panel including an encapsulation process,
In advance, the process of integrally forming the bottomless covered box-shaped ventilation conduit and the tip tube before sealing,
A process of fixing a ventilation conduit formed integrally with the tip tube in advance on the surface on the side opposite to the electrode forming surface of the back side substrate so as to cover the through hole,
In the sealing process, the discharge space is evacuated through the tip tube, the discharge gas is introduced into the discharged discharge space through the tip tube, and then the tip tube is sealed off. A method for manufacturing a plasma display panel.

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