JP2002216647A - Plasma display panel and its sealing structure - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a structure of a plasma display panel which loads a plural ity of conventional sized panels in array on a front base glass plate and a rear base glass, on the ground that there are many problems to be overcome in manufacturing a large plasma display panel, such as complicated electrode wiring or structure of a panel, manufacturing apparatus for producing the large panel. SOLUTION: In this sealing structure of the large plasma display panel, a plurality of front face panels and a plurality of rear face panels are sequentially loaded in array on a front base glass plate and a rear base glass plate individually, and an air-sealing is individually processed by applying a seal adhesive sequentially. Then, these panels are assembles so as to be opposed each other and the clearance is sealed by applying a seal adhesive.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

[0001] 1. Field of the Invention [0002] The present invention relates to a plasma display panel suitable for increasing the size of an AC type plasma display device, and a vacuum hermetic sealing structure thereof.

[0002]

2. Description of the Related Art Conventionally, an AC type plasma display device is mounted on a back panel 20 shown in FIGS. 4 (a) and 4 (b).
(C) The front panels 10 of (d) are bonded one by one to face each other, and a sealing agent is applied to a sealing agent application portion S around the bonding surface (outside the plasma display screen) to seal and fix. I was FIGS. 5A and 5B show the state. Here, T is a chip tube, V is a PDP screen, 19 is a lead line of the first and second electrodes 11a and 11b,
Reference numeral 29 denotes a lead line of the third electrode 21.

[0003] The role of the sealant is to create a discharge space for displaying an image on the PDP screen V. The sealant has a seal structure in which the tip tube T is evacuated and filled with a discharge gas.

As shown in FIGS. 4A to 4D, the front panel 10 and the rear panel 20 are glass substrates 15, 2 respectively.
Many electrode lines are arranged on 5. That is, the front panel 10 has a transparent electrode 12 formed on a glass substrate 15, a first metal electrode 11 a for scanning and a second metal electrode 11 b for sustain formed on each of the transparent electrodes 12, and a discharge electrode pair 1.
1, the discharge electrode pairs are arranged in the column direction at a pitch of the center interval P1, and the dielectric 13 and the protective film (M
gO) 14 is formed. On the other hand, the back panel 20 has the back electrodes 21 arranged on the glass substrate 25 in the row direction at a pitch having the center interval P2, the dielectric 23 is formed thereon, and the back partition ribs are provided between the back electrodes 21. 22 are provided, and phosphors (R, G, B) 24 are formed therebetween.

As described above, the front panel 10 and the rear panel 20 have a complicated electrode structure on one side. The plasma display device has such front and rear panels 10,
The conventional method is to combine and manufacture 20 pieces one by one.

Here, in order to increase the size of the plasma display device, a large front panel 10 and a large back panel 20 must be used. Further, the formation of a complicated electrode structure as described above in a large panel also tends to lower the yield and make the production extremely difficult.
Further, a large-sized manufacturing apparatus is required, and handling of a glass plate has been more difficult than before.

[0007]

DISCLOSURE OF THE INVENTION The present invention has been made in view of the above points, and has as its object the following:
Conventionally, a plurality of front and rear panels of approximately the same area are manufactured in advance, and they are mounted on a single front base glass plate of the required size, arranged on the rear base glass plate, and combined with the electrode forming parts facing each other. To facilitate the manufacture of large plasma display devices.

[0008]

In order to solve the above-mentioned problems, a plasma display panel according to the present invention has a center spacing between a plurality of pairs of electrodes including a first metal electrode for scanning and a second metal electrode for sustain which extend in one direction. Are arranged at a first predetermined pitch, and a plurality of third rear metal electrodes for data extending in a direction perpendicular to the direction are arranged at a second predetermined pitch, and a center interval between the front panels is arranged at a second predetermined pitch. An AC in which a rear panel having an electrode configuration in which a rear partition rib is disposed is opposed to each other across a discharge gas space, and addressing is performed by first and third electrodes, and discharge is maintained by the first and second electrodes. In the plasma display panel, a plurality m of the front panels are mounted and arranged such that respective electrode pairs are parallel to each other.
One front base glass plate having about twice the area and the two rear panels are opposed to each other at one end, which is one end of the rear metal electrode, and the other end is an electrode lead wire in the opposite direction. To be connected to
Further, one rear base glass plate formed and mounted so that the shape of the two rear panel groups is substantially the same as that of the front panel group in which the m panels are combined is mounted with the respective electrode forming surfaces inside. , And a center interval between electrode pairs at adjacent ends, which are boundaries between adjacent front panels, is a first predetermined pitch.

[0009] Further, the front panel mounted on the front base glass plate has two front panels, which are symmetrical with respect to the arrangement boundary thereof, and the rear panel is symmetrical with respect to the boundary. It is characterized by.

Next, a seal structure for a plasma display panel according to the present invention is the seal structure for a plasma display panel according to claim 1 or 2, which is mounted and arranged on the front base glass plate and formed by combining m sheets. Between the outer peripheral side surface of the square front panel group and the upper peripheral portion of the front base glass plate along the side surface, and along the boundary surface of the front panel, from the peripheral portion to a position where a discharge gas space is formed. A first seal portion formed by applying a sealant with a sealing agent, a square outer peripheral side surface portion of a rear panel group mounted and arranged on the rear base glass plate, and a rear base along the side surface. A second seal portion formed by applying a sealant between the upper peripheral portion of the glass plate surface and an outer peripheral surface of a rectangular region to be the discharge gas space on the two rear panel group surfaces; And applying a sealing agent on the rear panel combination boundary surface between the outer peripheral surface portion and the second sealing portion, and stacking the front base glass plate on which the front panel group is mounted with their electrode forming portions on the inside. And a third seal portion forming an assembly seal.

In the case where the number of the front panels mounted on the front base glass plate is two, and the front panels and the rear panels are arranged at positions substantially coincident with each other, the first mode is adopted. The application of the sealant from both ends of the boundary surface of the front panel to the discharge gas space region in the seal portion can be simultaneously performed in the third seal portion.

[0012]

Embodiments of the present invention will be described below with reference to the drawings.

FIGS. 1 to 3 show an embodiment of a seal structure for a plasma display panel according to the present invention.

In this embodiment, one front base glass plate 1 is provided with m front panels 10 (here, m = 2) arranged in an area which can be usually efficiently manufactured, while two rear panels 20 are arranged. -1, 20-2 with their respective tips, which are one ends of the back metal electrodes 21, opposed to each other,
One rear base glass plate 2 arranged and mounted so that the other end is connected to the electrode lead wire 29 in the opposite direction.
Shows a case where m = 2 assembled on the front base glass plate 1 with the electrode forming portion inside.

A detailed description will be given with reference to FIGS.

FIG. 1 is a plan view of a front base glass plate 1.
On which two front panels 10-1 and 10-2 are arranged and mounted
Shown structure. (A) is its plan view, (b) is its X₁
-X ₁FIG. Each front panel 10-1,
10-2 is a conventional front panel shown in FIGS.
This is the same electrode formation structure as 10.

The vicinity of the adjacent boundary surface 17 between the front panels 10-1 and 10-2 is shown in enlarged views in FIGS. That is, the first metal electrode 11 for scanning is located at the adjacent end of the adjacent boundary surface 17 between the front panels 10-1 and 10-2.
electrode pair 11 consisting of a and a second metal electrode 11b for sustain
Are parallel to each other and the front panels 10-1, 10-
2 are arranged such that the interval between the electrode pairs 11 at the adjacent ends is equal to the electrode pair center interval pitch P1 (first predetermined pitch).

When there are three or more front panels 10 (m> 2)
), But the respective front panels 10-1, 10-
What is necessary is just to arrange | position as above-mentioned at the adjacent end of 2,10-3 ,.

In FIGS. 1C and 1D, reference numeral 16 denotes a black stripe area. As shown in FIG.
If the position of the gap 7 substantially coincides with the position of the black stripe region 16, the effect of the arrangement boundary of the front panel 10 does not appear on the image viewed from the front of the front base glass plate 1.

Incidentally, reference numeral 19 in FIG. 1A indicates the electrode lead lines of the first and second metal electrodes 11a and 11b.

Further, S1 in FIGS. 1A and 1B indicates a first seal portion. The first seal portion S1 has a seal structure for maintaining airtightness between a front panel group including the front base glass plate 1 and m (here, two) front panels.

As can be seen from FIGS. 1 (a) and 1 (b), the first seal portion S1 has a square outer peripheral side surface portion of a front panel group in which front panels 10-1 and 10-2 are combined, and a side surface thereof. Is applied between the front base glass plate 1 and the peripheral edge of the surface along the front base glass plate 1.

Further, a sealant is applied along the boundary surface of the front panel from the peripheral portion S1 to a position where the discharge gas space V is formed.

V is a discharge gas space, that is, PDP
Indicates a region to be a screen.

Next, FIGS. 2A and 2B are diagrams in which two rear panels 20-1 and 20-2 are mounted and arranged on the rear base glass plate 2. FIG. 2C shows a back panel 20-.
The enlarged view of the arrangement boundary surface 27 of 1,20-2 is shown. In addition,
The rear panel 20 has the same formation structure as the conventional one shown in FIGS.

Here, the two rear panels are each connected to one end of each of the rear metal electrodes 21 by a boundary surface 2.
7 and the other end is arranged in the opposite direction so as to be connected to the electrode lead wire 29. The arrangement of the two rear panel groups is m (here, m = 2). The figure shows a state in which it is formed so as to substantially match the front panel group and mounted.

Here, FIG. 2C shows a back panel 20-.
This shows that the rear metal electrodes 21 face each other at the arrangement boundary surface 27 of 1, 20-2. Here, T indicates a chip tube.

Reference numeral S2 denotes a second seal portion, which is mounted and arranged on the rear base glass plate 2 and has a rectangular outer peripheral side surface portion of a rear panel group formed by combining the two, and the rear base glass plate 2 along the side surface. It is formed by applying a sealant between the surface and the peripheral edge.

S3 is a third seal portion, which is an outer peripheral surface of a rectangular region to be a discharge gas space V on the two back panel group surfaces, and a portion between the outer peripheral surface and the second seal portion. A sealant is applied on the rear panel combination boundary surface 27 of FIG. 1, and then on the front base glass plate 1 (FIG. 1) on which the front panel group is mounted as shown in FIGS. 3 (a) and 3 (b).
Rear base glass plate 2 with rear panel group mounted (Fig. 2)
Are assembled with the electrode forming portion facing inward to form a seal.

T in FIGS. 2 and 3 is a chip tube on the rear base glass plate 2.

The number of front panels mounted on the front base glass plate 1 is two (m = 2), and the front and rear panels 17 and 27 are arranged at screen positions where the respective boundary surfaces 17 and 27 substantially coincide with each other. In this case, the application of the sealant from both ends of the boundary surface 17 of the front panel in the first seal portion S1 to the discharge gas space V can be performed simultaneously in the third seal portion. This reduces the number of steps.

At the time when the sealing agent applied as the above-described sealing structure is baked at about 430 ° C. and melted and fixed, the first to third sealing portions S1, S2, S3 are shut off from the outside air, and the tip tube T , And then discharge gas is introduced to complete a predetermined large-sized plasma display panel. In addition, the tip tube T is 2 as shown in FIG.
Not only one, but any one may be used.

[0033]

The plasma display panel of the present invention and its sealing structure have the following effects.

That is, a plurality of front panels and rear panels each having an area which can be usually efficiently manufactured are prepared, and one front base glass plate having an area for mounting at least two or more front panels is placed on the front panel glass plate. With one rear front base glass plate, which is mounted with two rear panels and arranged in a shape that almost covers the front panel group, is assembled on top of the front panel group surface, the plasma When the size of the display panel device is increased, the yield is prevented from being reduced by increasing the size of the panel composed of a complex electrode group, and there is no need to increase the size of the manufacturing equipment including glass handling, and the equipment cost and process stability are sufficient. There is an effect that can be obtained.

[Brief description of the drawings]

FIG. 1 is a diagram showing a configuration of a front base glass plate and a front panel group of the present invention and a sealing structure thereof.

FIG. 2 is a diagram showing a configuration of a rear base glass plate and a rear panel group of the present invention and a sealing structure thereof.

FIG. 3 is a diagram showing a configuration diagram of a plasma display panel of the present invention and a seal structure thereof.

FIG. 4 is a configuration diagram of a front panel and a rear panel.

FIG. 5 is a configuration diagram of a conventional plasma display panel.

[Explanation of symbols]

 Reference Signs List 1 front base glass plate 2 rear base glass plate 10, 10-1, 10-2 front panel 11 electrode pair (light emitting cell) 11a first metal electrode for scanning (Ag) 11b second metal electrode for sustaining (Ag) 12 transparent Electrode (ITO) 13 Dielectric 14 Protective film (MgO) 15 Glass substrate 16 Black stripe film 17 Boundary surface (between front panels) 19 Electrode lead (first and second electrodes) 20, 20-1, 20-2 Back panel 21 Third metal electrode for data (back electrode) 22 Back rib rib 23 Dielectric 24 Phosphor 25 Glass substrate 27 Boundary surface (between back panels) 29 Electrode lead (back electrode) P1 Electrode-to-center pitch (first P2 Back electrode center pitch (second predetermined pitch) S Sealant application section S1 First seal section S2 Second sheet Part S3 third sealing portion T chip tube V PDP screen (discharge gas space)

Claims (4)

[Claims] 1. A front panel having an electrode configuration in which a plurality of pairs of electrodes including a first metal electrode for scanning and a second metal electrode for sustaining extending in one direction are arranged at a first predetermined pitch. A plurality of third rear metal electrodes for data extending in a direction orthogonal to each other are arranged at a second predetermined pitch, and a rear panel having an electrode configuration in which a rear rib is disposed between the third rear metal electrodes for data sandwiches a discharge gas space. And an AC type plasma display panel in which addressing is performed by the first and third electrodes and discharge is maintained by the first and second electrodes. Are mounted and arranged so that they are parallel to each other, one front base glass plate having an area about m times that of the front panel, and two back panels, and a back metal electrode thereof. The front panel is formed such that one end portion, which is one end, faces each other, and the other end is arranged so as to be connected to the electrode lead in the opposite direction, and the arrangement of the two rear panel groups is m. One rear base glass plate formed and mounted so as to substantially match the group, and assembled so that the respective electrode forming surfaces face inward and orthogonal to each other, and each boundary surface of the adjacent front panel The center interval between the pair of electrodes at adjacent ends is a first predetermined pitch. 2. A front panel mounted on the front base glass plate and having two front panels symmetrical with respect to a boundary between the two panels, and a rear panel is symmetric with respect to the boundary. The plasma display panel according to claim 1, wherein: 3. The sealing structure for a plasma display panel according to claim 1, wherein the outer peripheral side surfaces of the front panel group formed by combining and mounting m pieces on the front base glass plate are formed. A first seal formed by applying a sealant between the upper peripheral portion of the front base glass plate along the side surface thereof and the position from the peripheral portion to the position where the discharge gas space is formed, along the boundary surface of the front panel. And a sealant between the rectangular outer peripheral side surface portion of the rear panel group, which is mounted and arranged on the rear base glass plate, and formed by combining the two, and the upper peripheral edge portion of the rear base glass plate surface along the side surface. A second seal portion formed by applying the same, and an outer peripheral surface portion of a rectangular region to be the discharge gas space on the two rear panel group surfaces, and a back surface between the outer peripheral surface portion and the second seal portion. Panel set A front base glass plate on which the front panel group is mounted by applying a sealant on a mating boundary surface, and a third seal portion which is formed by assembling a seal by stacking the front base glass plates with their electrode forming portions inside. A seal structure for a plasma display panel characterized by the following. 4. The method according to claim 1, wherein the number of the front panels mounted on the front base glass plate is two, and the front panels and the rear panels are arranged at positions substantially coincident with each other. 4. The seal structure for a plasma display panel according to claim 3, wherein the application of the sealant from both ends of the boundary surface of the front panel to the discharge gas space region in the seal portion can be simultaneously performed by the third seal portion.