KR101143440B1 - Plasma display sign board and method for manufacturing the same - Google Patents

Abstract

A plasma display sign board according to an embodiment of the present invention, the first substrate is provided with a discharge space is engraved on one surface, the first discharge is laminated on the other surface facing one surface of the first substrate to induce discharge in the discharge space An electrode, a transparent second substrate coupled to one surface of the first substrate to seal the discharge space, and a second interposed between the first substrate and the second substrate to induce discharge in the discharge space together with the first discharge electrode The discharge electrode, a fluorescent material applied to the bottom of the discharge space to generate visible light, and an inert gas filled in the discharge space to excite the fluorescent material. Plasma display sign board according to the present invention is disposed by the discharge electrode on the back of the substrate of the insulating material exposed to the front of the product, while reducing the risk of electric shock, thickness and weight are reduced.

Description

Plasma display sign board and manufacturing method thereof {PLASMA DISPLAY SIGN BOARD AND METHOD FOR MANUFACTURING THE SAME}

The present invention relates to a plasma display sign board, and more particularly, to a plasma display sign board and a method for manufacturing the same, which can reduce the thickness and weight of a product, and manufacturing cost.

The plasma display signboard is a display device using light emitted from an inert gas. Plasma display signboards are suitable for large billboards because they can be made thin and large.

Figure 1 shows the structure of a conventional plasma display sign board.

As shown in FIG. 1, in the conventional plasma display sign board 10, an upper plate glass 12 having a discharge electrode 11 attached to an upper surface thereof and a lower plate glass 14 having a discharge electrode 13 attached to a lower surface thereof adhered thereto. It is made. A protective layer 15 is interposed between the upper glass 12 and the lower glass 14 to prevent damage to the upper glass 12 due to discharge and to lower the discharge sustain voltage.

The discharge space 16 is formed on the upper surface of the lower plate 14, and the fluorescent material 17 is coated on the lower portion of the discharge space 16. An inert gas such as xenon (Xe), neon (Ne), or the like is injected into the discharge space 170. The discharge space 16 is formed in accordance with the characters or drawings to be displayed. In manufacturing the plasma display signboard, after applying a bonding adhesive to the upper edge of the lower glass 14 so that the discharge space 16 can be sealed, the upper glass 12 is in close contact with the lower glass 14 The upper glass 12 and the lower glass 14 are bonded to each other by baking.

The operation of the plasma display signboard having such a structure will be briefly described as follows. When power is applied to the upper and lower discharge electrodes 11 and 13, ultraviolet rays are emitted from the inert gas in the discharge space 16. When the emitted ultraviolet rays excite the fluorescent material 17, visible light is emitted from the fluorescent material 17, and the display pattern is displayed to the outside by the visible light.

However, in the conventional plasma display sign board, the discharge electrodes 11 and 13 are exposed on the upper surface of the upper glass 12 and the lower surface of the lower glass 14, so that there is a high risk of a safety accident due to electric shock. In order to prevent this, insulating glass should be attached to the outer surface of each discharge electrode (11, 13). If the insulating glass is attached, the weight of the product becomes heavy, making it difficult to handle, complicated manufacturing process, and manufacturing cost. There is a rising problem.

The present invention is to solve the above problems, an object of the present invention is to provide a plasma display signboard that can reduce the risk of electric shock, thin thickness and light weight, and simplify the manufacturing process to reduce the manufacturing cost.

Plasma display sign board according to an embodiment of the present invention for achieving the above object, the first substrate is provided with a discharge space engraved on one surface, and the one surface of the first substrate to induce discharge in the discharge space A first discharge electrode stacked on an opposite surface, a transparent second substrate coupled to one surface of the first substrate to seal the discharge space, and together with the first discharge electrode to induce discharge in the discharge space A second discharge electrode interposed between the first substrate and the second substrate, a fluorescent material applied to the bottom of the discharge space to generate visible light, and an inert gas filled in the discharge space to excite the fluorescent material It includes.

The second discharge electrode may be disposed around the discharge space to deviate from the discharge space.

The second discharge electrode may be stacked on one surface of the first substrate on which the discharge space is provided.

A plasma display sign board according to an embodiment of the present invention includes a first power supply electrode connected to the first discharge electrode and the second discharge electrode, respectively, to supply power to the first discharge electrode and the second discharge electrode. And a second power supply electrode.

The second discharge electrode is stacked on the first substrate, the second substrate is coupled with the first substrate to partially cover the second discharge electrode, and the second power supply electrode is connected to the second discharge electrode. It may be laminated on a portion not covered by the second substrate.

The second discharge electrode is stacked on the second substrate, the first substrate is coupled with the second substrate to partially cover the second discharge electrode, and the second power supply electrode is connected to the second discharge electrode. It may be laminated on a portion not covered by the first substrate.

Method of manufacturing a plasma display sign board according to an embodiment of the present invention for achieving the above object, a) preparing a first substrate, b) depositing a first discharge electrode on one surface of the first substrate c) depositing a second discharge electrode on the other surface of the first substrate opposite the one surface; d) removing a portion of the portion where the second discharge electrode of the first substrate is deposited to provide a discharge space; E) applying a fluorescent material to the bottom of the discharge space; f) preparing a transparent second substrate; g) discharging the discharge space of the first substrate to seal the discharge space with the transparent second substrate. Attaching to the prepared surface; h) discharging air in the discharge space to make the discharge space into a vacuum; i) injecting an inert gas into the discharge space into a vacuum; .

Step d) may use a sand blasting method.

The method of manufacturing a plasma display sign board according to an embodiment of the present invention further includes attaching a power supply electrode for power supply to the first discharge electrode and the second discharge electrode after step g). can do.

Method of manufacturing a plasma display sign board according to another embodiment of the present invention for achieving the above object, a) preparing a first substrate, b) depositing a first discharge electrode on one surface of the first substrate c) partially removing the other surface of the first substrate facing one surface of the first substrate to provide a negative discharge space; d) applying a fluorescent material to the bottom of the discharge space; e) transparent Preparing a second substrate, f) depositing a second discharge electrode on one surface of the second substrate, g) a surface on which the discharge space of the first substrate is provided, and the second discharge electrode of the second substrate Bonding the first substrate and the second substrate so that the deposited surface abuts; h) discharging air in the discharge space to make the discharge space into a vacuum; i) inert to the discharge space in vacuum;And a step of injecting a scan.

According to another aspect of the present invention, there is provided a method of manufacturing a plasma display sign board, further comprising: drilling an exhaust hole in one of the first substrate and the second substrate before step g), and h) In the step, the air in the discharge space is discharged through the exhaust hole, and in step i), the inert gas may be injected into the discharge space through the exhaust hole.

The step d) may include d-1) partially covering the discharge space with a masking tape, d-2) applying the fluorescent material to a portion of the discharge space not covered with the masking tape. have.

According to another aspect of the present invention, there is provided a method of manufacturing a plasma display sign board according to any one of a surface on which the discharge space of a first substrate is provided and a surface on which the second discharge electrode of the second substrate is deposited before step g). The method may further include applying an adhesive seal for adhering the first substrate and the second substrate to one.

The step g) may include firing the first substrate and the second substrate in close contact with each other to fix the adhesive seal to the first substrate and the second substrate.

In the step c), c-1) preparing a sheet in which a pattern to be displayed is formed in a hole shape, c-2) attaching the sheet to the other surface on which the first discharge electrode of the first substrate is not deposited. Step, c-3) may include sandblasting the first substrate to partially remove the other surface of the first substrate in the design form.

A method of manufacturing a plasma display sign board according to another embodiment of the present invention further includes attaching a power supply electrode for power supply to the first discharge electrode and the second discharge electrode after step i). can do.

As described above, the present invention has the effect of lowering the risk of electric shock and light weight while simplifying the manufacturing process by lowering the risk of electric shock by disposing the discharge electrode on the back of the substrate of the insulating material exposed to the front of the product.

In addition, the present invention has the effect of reducing the power consumption by reducing the area of the discharge electrode by forming a discharge electrode only in the portion corresponding to the discharge space on both sides of the lower plate glass.

In addition, the present invention has the effect of increasing the efficiency of the power supply as the power consumption is reduced and to improve the brightness of the display pattern displayed to the outside.

Hereinafter, with reference to the accompanying drawings, a plasma display sign board according to an embodiment of the present invention will be described in detail.

In describing the present invention, the size or shape of the components shown in the drawings may be exaggerated or simplified for clarity and convenience of description. In addition, terms defined in consideration of the configuration and operation of the present invention may be changed according to the intention or custom of the user, the operator. These terms are to be construed in accordance with the meaning and concept consistent with the technical idea of the present invention based on the contents throughout the present specification.

2 is a cross-sectional view showing a plasma display sign board according to an embodiment of the present invention.

As shown in FIG. 2, the plasma display signboard 100 according to an exemplary embodiment of the present invention may include a first substrate 110, a second substrate 120, a first discharge electrode 130, and a second discharge. Electrode 140. The first discharge electrode 130 is stacked on one surface (lower surface in the drawing) of the first substrate 110 and the second discharge electrode 140 is stacked on the other surface (upper surface in the drawing) of the first substrate 110. . The second substrate 120 is coupled to one surface of the first substrate 110 to cover the second discharge electrode 140. The first power supply electrode 150 and the second power supply electrode 160 for supplying external power are connected to each outer surface of the first discharge electrode 130 and the second discharge electrode 140.

Here, the second substrate 120 is made of a transparent and electrically insulating material such as glass. The first substrate 110 may be made of the same material as the second substrate 120 or may be made of another material having electrical insulation. Since the size of the second substrate 120 is smaller than that of the first substrate 110, the second substrate 120 partially covers the second discharge electrode 140 stacked on the first substrate 110. The second power supply electrode 160 is stacked on a portion of the second discharge electrode 140 not covered by the second substrate 120. This is to facilitate the attachment work of the second power supply electrode 160 during manufacturing, and the second power supply electrode 160 may be easily exposed to the outside when the second power supply electrode 160 is easily exposed to the second discharge electrode 140. ) Can be attached. To this end, the first substrate 110 and the second substrate 120 may have the same size, and the second substrate 120 may be coupled to the first substrate 110 so as to be biased to one side.

A portion of the first substrate 110 is removed from the other surface of the first substrate 110 to form an engraved discharge space 170, and a fluorescent material 180 is coated on the bottom of the discharge space 170. The discharge space 170 is formed in accordance with display patterns such as letters and symbols to be displayed. An inert gas for discharging, such as xenon (Xe), neon (Ne), argon (Ar), or a mixed gas thereof, is injected into the discharge space 170.

Although the first discharge electrode 130 is illustrated as being attached to the entire surface of the first substrate 110 in the drawing, the first discharge electrode 130 is attached only to the portion corresponding to the discharge space 170 and the periphery thereof. will be. In addition, although the second discharge electrode 140 is illustrated as being attached to all parts except the discharge space 170 on the other surface of the first substrate 110, the second discharge electrode 130 may be formed in the discharge space 170. It is attached only to the surroundings.

In the plasma display sign board 100 according to an exemplary embodiment of the present invention, when power is applied to the first discharge electrode 130 and the second discharge electrode 140, ultraviolet rays are emitted from the inert gas in the discharge space 170. do. When the emitted ultraviolet rays excite the fluorescent material 180 in the discharge space 170, the visible light is emitted from the fluorescent material 180, and the display pattern corresponding to the shape of the discharge space 170 is generated by the emitted visible light. It is displayed to the outside through one surface of the second substrate 120.

In the plasma display sign board 100 according to an exemplary embodiment of the present invention, a discharge electrode is not provided on an outer surface of the second substrate 120 on which a display pattern is displayed to the outside, and the second substrate 120 itself is used as an insulating plate. do. Therefore, the separate insulating plate can be omitted, the thickness of the product is thinner and lighter than the conventional, and the manufacturing process is simplified. In addition, if the first substrate 110 and the second discharge electrode 140 that do not need to be exposed to the outside are disposed properly on the wall or the bottom, there is no need to provide a separate insulating plate on the first discharge electrode 130 side.

In addition, the plasma display sign board 100 according to an exemplary embodiment of the present invention is disposed by discharging the electrodes 130 and 140 only at the periphery of the discharge space 170, thereby reducing the area of the discharge electrodes 130 and 140. There is an effect that can reduce the power.

3A to 3C illustrate a process of manufacturing a plasma display sign board according to an embodiment of the present invention.

First, as shown in FIG. 3A, after preparing the first substrate 210, the pattern mask 215 is attached to any one surface of the first substrate 210. Here, a metal mask made of metal may be used as the pattern mask 215. The pattern mask 215 has an opening 217, and the opening 217 has a larger area than the display pattern in a shape corresponding to the display pattern to be displayed. Of course, the opening 217 does not necessarily have to have a shape corresponding to the display pattern. The opening 217 has a portion corresponding to the extension electrode portion 230b (see FIG. 3C) for power supply.

The pattern mask 215 is also attached to the other side of the first substrate 210. For convenience of description, the pattern mask attached to the other surface of the first substrate 210 is omitted in FIG. 3A.

After the pattern mask 215 is attached to both surfaces of the first substrate 210, indium tin oxide (hereinafter, referred to as “ITO”) to be used as a discharge electrode is deposited. Here, ITO can be replaced with another material that can be used as a transparent electrode such as indium oxide, tin oxide or zinc oxide.

After the ITO is deposited on the first substrate 210 and the pattern mask 215 is removed, it is transparent to the opening 217 of the pattern mask 215 on the first substrate 210 as shown in FIG. 3B. An electrode 225 is formed. The formed transparent electrode 225 includes a first portion 225a having a larger area than the display pattern in the shape of the opening 217 of the pattern mask 215 and a second portion 225b for power supply.

After forming the transparent electrode 225, as shown in FIG. 3C, the first portion 225a of the transparent electrode 225 is partially removed in accordance with a display pattern to be displayed. In this case, various processing methods such as sand blasting, grinding, and laser processing may be used.

Through this method, a portion of the upper surface of the transparent electrode 225 and the first substrate 210 is removed to form a discharge space 270 corresponding to the display pattern, and the second discharge electrode 240 around the discharge space 270. ) Is provided. Here, the second discharge electrode 240 means a portion 240a around the discharge space 270 and an extension electrode portion 240b extending from this portion for power supply.

In the case of using the sand blasting method in forming the second discharge electrode 240, the sand sheet after attaching a protective sheet such as a sand sheet having a pattern corresponding to the display pattern in the form of a hole to one surface of the first substrate 210 Run blasting.

As described above, the transparent electrode is deposited on the other surface of the first substrate 210 in the shape of the opening 217 of the pattern mask 215. Thus, the transparent electrode deposited on the other surface of the first substrate 210 forms the first discharge electrode as it is.

After depositing the first discharge electrode 230 and the second discharge electrode on the first substrate 210, a fluorescent material is applied to the bottom surface of the discharge space 270. Next, the second substrate is bonded to one surface of the first substrate 210 to cover the second discharge electrode 240, and then fired to fix the first substrate 210 and the second substrate.

Thereafter, the exhaust tip is attached to make the discharge space 270 in a vacuum state, and then an inert gas is injected into the discharge space 270 in a vacuum state. Finally, a power supply electrode for power supply is attached to the first discharge electrode and the second discharge electrode 240. An electrode tape or an electrode paste may be used as the power supply electrode.

4 is a cross-sectional view schematically illustrating a plasma display sign board according to another embodiment of the present invention.

As shown in FIG. 4, the plasma display signboard 300 according to another embodiment of the present invention may include a first substrate 310, a second substrate 320, a first discharge electrode 330, and a second discharge. Electrode 340. The first discharge electrode 330 is stacked on one surface (lower surface in the drawing) of the first substrate 310, and the second discharge electrode 340 is stacked on one surface (lower surface in the drawing) of the second substrate 320. . The second substrate 320 is coupled to the other surface of the first substrate 310 (upper surface in the drawing), and the second discharge electrode 340 is disposed between the first substrate 310 and the second substrate 320. do. A first power supply electrode 340 and a second power supply electrode 350 for supplying external power are attached to the first discharge electrode 330 and the second discharge electrode 340.

The second substrate 320 is made of a transparent and electrically insulating material such as glass. The first substrate 310 may be made of the same material as the second substrate 320 or may be made of another material having electrical insulation. Since the size of the first substrate 310 is smaller than that of the second substrate 320, the second discharge electrode 340 stacked on the second substrate 320 is partially covered by the first substrate 310. The second power supply electrode 360 is stacked on a portion of the second discharge electrode 340 not covered by the first substrate 310.

A part of the first substrate 310 is removed from the other surface of the first substrate 310 to form an engraved discharge space 370, and a fluorescent material 380 is coated on the bottom of the discharge space 370. The discharge space 370 is formed in accordance with a letter or a figure to be displayed. An inert gas for discharging, such as xenon (Xe) and neon (Ne), is injected into the discharge space 370. The discharge space 370 is sealed by bonding the second substrate 320 on which the second discharge electrode 340 is deposited to the first substrate 310. The first substrate 310 and the second substrate 320 are adhered to each other by an adhesive seal 390.

In the drawing, the first discharge electrode 330 is shown as being attached to all parts of the first substrate 310 except for the discharge space 370, but the first discharge electrode 330 is formed in the discharge space 370. It can only be attached to the perimeter. Similarly, the second discharge electrode 340 may also be attached only to the periphery of the discharge space 370.

Operation of the plasma display signboard 300 according to another embodiment of the present invention is the same as the plasma display signboard 300 according to the embodiment of the present invention described above. That is, when power is applied to the first discharge electrode 330 and the second discharge electrode 340, ultraviolet rays are emitted from the inert gas in the discharge space 370, and the emitted ultraviolet rays are fluorescent materials 380 in the discharge space 370. Excitation) emits visible light from the fluorescent material 380. The display pattern corresponding to the shape of the discharge space 370 is displayed to the outside through the other surface of the second substrate 320 by the visible light emitted as described above.

In the plasma display sign board 300 according to another exemplary embodiment of the present invention, a discharge electrode is not provided on an outer surface of the second substrate 320 on which a display pattern is displayed to the outside, and the second substrate 320 itself is used as an insulating plate. do. Therefore, a separate insulating plate is not required, so that the thickness of the product is thinner and lighter than in the related art, and the manufacturing process is simplified.

On the other hand, the plasma display sign board 300 according to another embodiment of the present invention, the second discharge electrode 340 is exposed to the discharge space 370, when the plasma is generated in the discharge space 370, the second discharge electrode Electron collision may occur at 340. However, such a phenomenon can be suppressed by appropriately adjusting the frequencies of currents applied to the first discharge electrode 330 and the second discharge electrode 340.

5A and 7F illustrate a process of manufacturing a plasma display sign board according to another embodiment of the present invention.

5A to 5G illustrate a process of preparing the first discharge electrode 430 and the discharge space 470 on the first substrate 410. First, as shown in FIG. 5A, a surface of the first substrate 410 is formed. The first discharge electrode 430 is deposited. The first discharge electrode 430 is made of a material used for a transparent electrode such as ITO, indium oxide, tin oxide, or zinc oxide, and is formed on the entire surface of one surface of the first substrate 410 or in a later process of the discharge space 470 to be formed. Can only be arranged around.

Since the deposition process of the first discharge electrode 430 is the same as the manufacturing process of the plasma display sign board according to the embodiment of the present invention described above, a detailed description thereof will be omitted. Although not shown, a process of chamfering an edge of the first substrate 410 after the deposition of the first discharge electrode 430, a process of cleaning the first substrate 410, and then drying the same may be performed.

Next, as illustrated in FIG. 5B, an exhaust hole 411 is formed in the first substrate 410. In this case, the exhaust hole 411 may be provided to be biased toward the edge of the first substrate 410 so as not to overlap with the discharge space 470 to be formed in a later process. For processing the exhaust hole 411, various drilling apparatuses such as a drill 415 may be used.

Next, as illustrated in FIG. 5C, the sheet 435 having the pattern 436 corresponding to the display pattern to be displayed on the other surface of the first substrate 410 on which the first discharge electrode 430 is not provided is provided. Attach. Of course, the operation of cutting the sheet 435 to fit the pattern 436 is preceded by attaching the sheet 435. Here, the sand sheet may be used as the sheet 435.

Next, as shown in FIG. 5D, a sand blasting process is performed. At this time, the other surface of the first substrate 410 is cut into a shape corresponding to the pattern 436 to form a discharge space 470. In the present invention, as the method of forming the discharge space 470 in the first substrate 410, various processing methods such as grinding and laser processing may be used in addition to sand blasting. Although not shown, after the sand blasting process, a grinding process, a cleaning process, a drying process, and the like may be performed.

After the discharge space 470 is formed in the first substrate 410, the fluorescent material 480 is coated on the discharge space 470 as shown in FIGS. 5E and 5F. In this case, various kinds of fluorescent materials 480 may be partially applied to the discharge space 470 using the masking tape 438. That is, as shown in FIG. 5E, first, a portion of the discharge space 470 is covered with the masking tape 438 and the fluorescent material 480 is applied to the discharge space 470 not covered with the masking tape 438. Subsequently, as shown in FIG. 5F, the masking tape 438 covers the remaining portion of the discharge space 470, and then another kind of fluorescent material 480 is applied to another portion of the discharge space 470. Through this process, display patterns of various colors can be realized.

After application of the fluorescent material 480, the sheet 435 is removed from the first substrate 410, as shown in FIG. 5G.

6A and 6B illustrate a process of preparing a second substrate 420 for bonding to the first substrate 410 which has completed the above-described process.

First, as shown in FIG. 6A, a second discharge electrode 440 is deposited on one surface of the second substrate 420. The process of depositing the second discharge electrode 440 is the same as the process of depositing the first discharge electrode 430 described above. Although not shown, a process of chamfering an edge of the second substrate 420 after the deposition of the second discharge electrode 440, a process of cleaning the first substrate 410, and then drying the same may be performed.

After depositing the second discharge electrode 440, as shown in FIG. 6B, an adhesive seal 490 is applied to one surface of the second substrate 420 on which the second discharge electrode 440 is deposited. . Although not shown in the drawing, after applying the adhesive seal 490, a process of plasticizing the second substrate 420 to fix the adhesive seal 490 to the second substrate 420 may be performed.

Thus, when the first substrate 410 and the second substrate 420 is prepared, they are bonded. 7A to 7G illustrate a process of bonding the first substrate 410 and the second substrate 420 together.

First, as illustrated in FIGS. 7A and 7B, the first surface of the first substrate 410 is disposed such that the surface on which the discharge space 470 is provided and the surface on which the second discharge electrode 440 of the second substrate 420 is provided face each other. After the substrate 410 and the second substrate 420 overlap, the clamp 444 is fixed. In addition, as illustrated in FIG. 7B, the exhaust tip 446 is coupled to the exhaust hole 411 provided in the first substrate 410. Next, the assembly of these 1st board | substrate 410 and the 2nd board | substrate 420 is baked. At this time, the first substrate 410 and the second substrate 420 are firmly fixed by the adhesive seal 490.

Next, as illustrated in FIG. 7C, air is discharged from the discharge space 470 between the first substrate 410 and the second substrate 420 through the exhaust tip 446 to vacuum the discharge space 470. Make it. After the discharge space 470 is vacuumed, inert gas is injected through the exhaust tip 446, as shown in FIG. 7D. The air discharge and the inert gas injection may be made through a minute gap between the first substrate 410 and the second substrate 420 provided in the inner region of the adhesive seal 490.

Next, as shown in FIG. 7E, the torch 448 is used to disconnect the exhaust tip 446 and close the exhaust hole 411 to completely block the discharge space 470 from the outside.

Next, as shown in FIG. 7F, a first power supply electrode 450 and a second power supply electrode 460 are attached to the first discharge electrode 430 and the second discharge electrode 440, respectively. Each power supply electrode 450, 460 may be provided by attaching an electrode tape or applying an electrode paste. Since both the first discharge electrode 430 and the second discharge electrode 440 are exposed to the outside, the attachment operation of the first power supply electrode 450 and the second power supply electrode 460 may be smoothly performed.

Finally, as shown in FIG. 7G, a wire 465 is connected to each of the power supply electrodes 450 and 460 to complete the product. Of course, a transparent protective plate may be attached to each outer surface of the first substrate 410 and the second substrate 420.

Meanwhile, in the manufacturing process of the plasma display signboard as described above, the exhaust hole 411 for discharging air from the discharge space 470 and injecting an inert gas into the discharge space 470 is formed on the first substrate 410. It may also be formed on the second substrate 420. In addition, an adhesive seal 490 for bonding the first substrate 410 and the second substrate 420 may be applied to the first substrate 410.

The embodiments of the present invention described above and illustrated in the drawings should not be construed as limiting the technical spirit of the present invention. The protection scope of the present invention is limited only by the matters described in the claims, and those skilled in the art can change and change the technical idea of the present invention in various forms. Accordingly, these modifications and variations are intended to fall within the scope of the present invention as long as it is obvious to those skilled in the art.

1 is a cross-sectional view showing the structure of a conventional plasma display sign board.

2 is a cross-sectional view showing a plasma display sign board according to an embodiment of the present invention.

3A to 3C illustrate some processes of manufacturing a plasma display sign board according to an embodiment of the present invention.

4 is a cross-sectional view showing a plasma display sign board according to another embodiment of the present invention.

5A to 5G illustrate a process of preparing a first discharge electrode and a discharge space on a first substrate of a plasma display sign board according to another embodiment of the present invention.

6A to 6B illustrate a process of preparing a second substrate for bonding to a first substrate of a plasma display sign board according to another embodiment of the present invention.

7A to 7G illustrate a process of bonding the first substrate and the second substrate of the plasma display sign board according to another embodiment of the present invention.

Description of the Related Art [0002]

110, 210, 310, 410: first substrate 120, 320, 420: second substrate

130, 230, 330, 430: first discharge electrode

140, 340, 440: second discharge electrode

150, 160, 340, 350, 450, 460: power supply electrode

170, 270, 370, 470: discharge space 180, 380, 480: fluorescent material

411: exhaust hole 490: adhesive seal

Claims (16)

A first substrate having a discharge space formed in a negative manner on one surface thereof; A first discharge electrode stacked on the other surface of the first substrate to induce discharge in the discharge space; A second discharge electrode which is stacked around the discharge space formed on one surface of the first substrate to induce discharge in the discharge space together with the first discharge electrode; A transparent second substrate coupled to one surface of the first substrate on which the second discharge electrodes are stacked to seal the discharge space; A fluorescent material applied to the bottom of the discharge space to generate visible light; And an inert gas filled in the discharge space to excite the fluorescent material. delete delete The method of claim 1, And a first power supply electrode and a second power supply electrode respectively connected to the first discharge electrode and the second discharge electrode to supply power to the first discharge electrode and the second discharge electrode. Plasma display signboard. The method of claim 4, wherein The second substrate is coupled to one surface of the first substrate to partially cover the second discharge electrode including the discharge space, and the second power supply electrode is connected by the second substrate of the second discharge electrode. Plasma display sign board, characterized in that laminated on the uncovered portion. delete a) preparing a first substrate; b) depositing a first discharge electrode on the other surface of the first substrate; c) depositing a second discharge electrode on an opposite side of the first substrate; d) removing a portion of the second discharge electrode and the first substrate on one surface of the first substrate on which the second discharge electrode is deposited to provide a discharge space; e) applying a fluorescent material to the bottom of the discharge space; f) preparing a transparent second substrate; g) attaching said transparent second substrate to a surface provided with said discharge space of said first substrate to seal said discharge space; h) discharging air in the discharge space to make the discharge space into a vacuum; And i) injecting an inert gas into the discharge space which becomes a vacuum; The method of claim 7, wherein Step d) is a manufacturing method of the plasma display sign board, characterized in that using the sand blasting method. The method of claim 7, wherein After the step g), further comprising attaching a power supply electrode for power supply to the first discharge electrode and the second discharge electrode, respectively. delete delete delete delete delete delete delete

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