KR20060132363A - Plasma display panel and fabricating method thereof - Google Patents

Abstract

A plasma display panel is provided to perform smoothly a gas exhaust process and a gas implantation process by forming an exhaust hole at a lateral face of one of an upper panel and a lower panel. A plasma display panel includes an upper panel(102), a lower panel(114), a sealing agent(130), and an exhaust hole(136). The upper panel includes a plurality of first electrodes formed on an upper substrate. The lower panel includes a plurality of second electrodes formed on a lower substrate. The sealing agent is used for attaching the upper substrate and the lower substrate to each other. The exhaust hole is formed at a lateral face of one of the upper panel and the lower panel.

Description

Plasma Display Panel And Fabricating Method Thereof}

1 is a perspective view showing a conventional three-electrode alternating surface discharge plasma display panel.

2 is a view showing an exhaust process in the method of manufacturing a plasma display panel according to the prior art.

3A to 3C are cross-sectional views sequentially illustrating an exhaust process and a discharge gas injection process in a conventional plasma display panel by cutting with a cutting line A-A 'shown in FIG.

4 is a perspective view illustrating a plasma display panel according to an exemplary embodiment of the present invention.

5 is a flowchart illustrating a method of manufacturing a plasma display panel according to an exemplary embodiment of the present invention in stages.

FIG. 6 is a cross-sectional view illustrating an exhaust pipe cut by the BB ′ cutting line illustrated in FIG. 4 and attached to an exhaust port; FIG.

<Description of the symbols for the main parts of the drawings>

2, 102: top plate 4: upper board

6 bus / hold electrode 10 top dielectric layer

12: protective film 14114: bout

16: lower substrate 18: address electrode

20: lower dielectric layer 22: partition wall

24R, 24G, 24B: Phosphor 30, 130: Seal material

36, 136 exhaust port 38, 138 exhaust pipe

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a plasma display panel, and more particularly, to a plasma display panel capable of easily performing an exhaust and gas injection process after the panel is bonded.

Recently, various flat panel displays have been developed to reduce weight and volume, which are disadvantages of cathode ray tubes. Such flat panel displays include liquid crystal displays (LCDs), field emission displays (FEDs), plasma display panels (hereinafter referred to as "PDPs"), and electroluminescence ( Electro-Luminescence (EL) display.

PDP is a display device using a gas discharge has the advantage that it is easy to manufacture a large panel. As a PDP, a three-electrode AC surface discharge type PDP having three electrodes and driven by an alternating voltage is typical.

Referring to FIG. 1, a discharge cell of a three-electrode PDP includes an upper plate 2 including a bus / hold electrode 6 formed on an upper substrate 4, and an address electrode formed on the lower substrate 16. And a lower plate 14 including 18).

The upper dielectric layer 10 and the passivation layer 12 are stacked on the upper substrate 4 on which the bus / hold electrode 6 is formed. The passivation layer 12 prevents damage to the upper dielectric layer 10 due to ions generated during plasma discharge and increases emission efficiency of secondary electrons. As the protective film 12, magnesium oxide (MgO) is usually used.

The lower dielectric layer 20 and the barrier rib 22 are formed on the lower substrate 16 on which the address electrode 18 is formed, and the phosphor layers 24R, 24G, and 24B are coated on the lower dielectric layer 20 and the barrier rib surface.

The address electrode 18 is formed in the direction crossing the bus / sustain electrode 6. The partition wall 22 is formed in parallel with the address electrode 18 to prevent ultraviolet rays and visible light generated by the discharge from leaking to the adjacent discharge cells. The phosphor layers 24R, 24G, and 24B are excited by ultraviolet rays generated during plasma discharge to generate visible light of any one of red, green, and blue.

When the upper and lower plates 2 and 14 are formed in this manner, they are bonded to each other at right angles by the seal material 30 as shown in FIG. 2. The exhaust port 36 formed on the lower plate 14 is sealed with the glass frit 34 using the exhaust pipe 32. This will be described in detail with reference to FIGS. 3A to 3C.

First, as shown in FIG. 3A, the upper plate 2 and the lower plate 14 are attached to the material 30 having a plastic form. Then, the exhaust pipe 38 is placed on the lower plate 14 so that the exhaust port 36 formed on the lower plate 14 is positioned inside the exhaust pipe 38 made of glass, and the glass frit 34 made of low melting glass is formed. After the exhaust pipe 38 and the lower plate 14 are fixed, they are cooled by heat treatment at 400 to 500 ° C.

When the exhaust pipe 38 and the lower plate 14 are bonded to each other, the stainless pipe 42 connected to the pump and the gas line 40 is connected to the exhaust pipe 38 as shown in FIG. 3B. Then, the pump 44 and the gas line 40 are used to remove the air 44 existing between the upper plate 2 and the lower plate 14 and inject the discharge gas 46.

When the discharge gas 46 is injected between the upper plate 2 and the lower plate 14, the exhaust pipe 32 is melted and sealed with a torch as shown in FIG. 3C, thereby completing the production of the PDP.

However, when the PDP is manufactured in this manner, since the exhaust port 36 is formed in one of the upper plate 2 and the lower plate 14, the exhaust port 36 should be turned upside down when the PDP is moved. Scratch defects may occur. In addition, when the system is made using the PDP protruding from the exhaust pipe, the PDP takes up a lot of space. Therefore, there is a disadvantage that causes a lot of inconvenience in manufacturing the system.

Accordingly, it is an object of the present invention to provide a PDP that facilitates the exhaust and gas injection process after panel bonding.

In order to achieve the above object, the PDP according to the present invention is a top plate comprising a plurality of first electrodes formed on the upper substrate, a lower plate comprising a plurality of second electrodes formed on the lower substrate, and It is provided with a real material for joining the lower plate, and an exhaust port formed on either side of the upper plate and the lower plate.

The exhaust port is formed to a depth of approximately 0.08 mm.

Other objects and features of the present invention in addition to the above objects will be apparent from the description of the embodiments with reference to the accompanying drawings.

Hereinafter, exemplary embodiments of the present invention will be described with reference to FIGS. 4 to 6.

4 is a perspective view illustrating a PDP according to an embodiment of the present invention.

Referring to FIG. 4, a PDP according to an embodiment of the present invention includes an upper plate 102 including a bus / hold electrode formed on an upper substrate, a lower plate 114 including an address electrode formed on a lower substrate; And a seal member 130 for joining the upper plate 102 and the lower plate 114, and an exhaust port 136 formed on either side of the upper plate 102 and the lower plate 114.

On the upper plate 102, a bus / sustaining electrode (not shown) is formed on the upper substrate, and an upper dielectric layer and a protective film (not shown) are stacked thereon. In this case, the protective layer prevents damage to the upper dielectric layer by ions generated during plasma discharge and increases emission efficiency of secondary electrons. Magnesium oxide (MgO) is usually used as a protective film.

The lower electrode 114 is formed with an address electrode (not shown) on the lower substrate, a lower dielectric layer and a partition wall are formed thereon, and a phosphor layer (not shown) is applied to the lower dielectric layer and the partition wall surface. In this case, the address electrode is formed in a direction crossing the bus / sustain electrode. The partition wall is formed in parallel with the address electrode to prevent the ultraviolet rays and the visible light generated by the discharge from leaking to the adjacent discharge cells. In addition, the phosphor layer is excited by ultraviolet rays generated during plasma discharge to generate visible light of any one of red, green, and blue.

The exhaust port 136 is formed in a groove having a depth of about 0.08 mm on the side of the upper substrate by an etching method or a sand blast method. On the other hand, the exhaust port 136 may be formed on the side of the lower plate (114). The exhaust port 136 is formed after the bonding process of the upper plate 102 and the lower plate 114 by the real material 130, and after the exhaust process and the discharge gas injection process of air existing between the upper plate 102 and the lower plate 114. Is sealed.

When the upper and lower plates 2 and 14 are formed in this manner, the real material 130 is applied along at least one edge of the upper plate 102 and the lower plate 114 so that the upper plate 102 and the lower plate 114 are perpendicular to each other. Stick together.

5 is a flowchart illustrating a method of manufacturing a PDP according to an embodiment of the present invention as described above in stages.

Referring to FIG. 5 and FIG. 4, a method of manufacturing a PDP according to an embodiment of the present invention is as follows.

First, each of the upper plate 102 and the lower plate 114 shown in FIG. 4 is manufactured through a separate manufacturing process. First and second steps S1 and S2

Then, the exhaust port (1) is formed on the side of any one of the upper plate 102 and the lower plate 114 manufactured in the first and second steps S1 and S2 using an etching method or a sand blast method. 136). Third step (S3)

And after apply | coating the real material 130 to the edge of at least one of the upper board 102 and the lower board 114, the upper board 102 and the lower board 114 are bonded together using the real board 130. FIG. Fourth step (S4)

Subsequently, as illustrated in FIG. 6, the exhaust pipe 138 is attached to the exhaust port 136 formed on either side of the upper plate 102 and the lower plate 114. 5th step (S5)

Then, the air existing between the upper plate 102 and the lower plate 114 is exhausted through the exhaust pipe 138 attached to the exhaust port 136 in the fifth step S5 using the pumping device. Sixth step (S6)

Then, the discharge gas is injected between the upper plate 102 and the lower plate 114 through the exhaust pipe 138 attached to the exhaust port 136 in the fifth step S5 using the discharge gas injection device. Seventh Step (S7)

Finally, in the fifth step S5, the exhaust pipe 138 attached to the exhaust port 136 is removed and the exhaust port 136 is sealed. 8th step (S8)

As described above, the PDP and the manufacturing method thereof according to the embodiment of the present invention form an exhaust port 136 on one side of the upper plate 102 and the lower plate 114 to facilitate the exhaust and gas injection process after the panel is attached. It can be done.

That is, when the PDP is manufactured in this manner, since the exhaust port 136 is formed on either side of the upper plate 102 and the lower plate 114, the exhaust process and the discharge gas injection process may be performed on the conveyor. Scratch defects as in the prior art can be prevented. In addition, since the exhaust pipe 138 is attached to the side of the panel, a system can reduce the space occupied by the panel.

As described above, the PDP according to the embodiment of the present invention can easily perform the exhaust and gas injection process after the panel is bonded by forming an exhaust port on either side of the upper plate and the lower plate.

Those skilled in the art will appreciate that various changes and modifications can be made without departing from the technical spirit of the present invention. Therefore, the technical scope of the present invention should not be limited to the contents described in the detailed description of the specification but should be defined by the claims.

Claims (2)

An upper plate including a plurality of first electrodes formed on the upper substrate; A lower plate including a plurality of second electrodes formed on the lower substrate; Real material for bonding the upper plate and the lower plate, And an exhaust port formed on one side of the upper and lower plates. The method of claim 1, And said exhaust port is formed to a depth of approximately 0.08 mm.

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