KR20050099804A - Plasma display panel and method for making the same - Google Patents

Abstract

The present invention relates to a plasma display type light emitting plate, and more particularly, to the upper plate glass 10 and the lower plate glass 30 having discharge electrodes 20-1 and 20-2 corresponding to each other on each lower surface thereof. The lower plate glass has a structure in which the lower plate glass is in close contact with the discharge electrode of the upper plate glass, and the cavity 32 is filled with an inert discharge gas G on one surface of the lower plate glass. In the display panel of the plasma display type provided with the phosphor 34, a space bar 100 is provided between the discharge electrode of the upper plate glass and the lower plate glass so that an inert discharge gas is injected and moved between the discharge electrode and the lower plate glass. Is configured to form a space 102.

In this configuration, since the space is formed between the upper plate glass, the discharge electrode, and the lower plate glass by the space bar, the injection and discharge of the discharge gas can be smoothly and quickly performed. Since it is formed to have a letter or a figure, the space bar during the day can maximize the advertising effect.

Description

Plasma display panel and its manufacturing method {Plasma Display Panel and method for making the same}

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a plasma display board, and more particularly, to a plasma display board and a method of manufacturing the same, which facilitate the injection and discharge of gas through a space bar between the top glass and the bottom glass. It is about.

In general, a neon sign may be used as a light emitting device for displaying a character or a picture (hereinafter, the term advertising pattern is used to include all designs such as a letter or a logo for an advertisement) used for advertising purposes.

The neon sign used as such a use heats and deforms a glass tube to a desired shape, and then injects a discharge gas such as neon into the glass tube to complete a shape of an advertisement pattern to be advertised.

However, a typical neon sign makes an advertising pattern using a glass tube, and since the glass tube has a structure supported by a basic frame, there is a disadvantage in that the overall structure becomes large. In addition, due to the structural weakness of the glass tube itself, there is also a disadvantage that there is a high risk of breakage due to external pressure. In addition, since a high voltage of 1KW or more is used as the main power source, there is a disadvantage that the risk of electric shock always follows. In addition, the advertising pattern provided by the ordinary neon sign can not only be limited by the diameter of the glass tube, and thus can not make finer characters or figures than the diameter of the glass tube, there is a disadvantage that the size of the advertising pattern is also limited.

On the other hand, U.S. Patent No. 4,703,574 discloses a flat plate light emitting sign board that improves the above disadvantages of neon signs.

According to this invention, it consists of a front transparent legend plate, a center feedthrough plate, and a back crossover cavity plate, and these three plates combine with each other to display a character or figure to be expressed. Is optionally molded. In addition, the discharge sign is provided in the cavity to provide the light emitting sign board.

However, the technology of the US patent has a disadvantage that the overall configuration is complicated, and the neon light is used as a back light source that is indirect lighting, so that the effect of neon fluorescent color is inferior.

Meanwhile, Korean Patent No. 312613 discloses a flat neon sign apparatus and a method of manufacturing the same.

According to the present invention, a flat plate neon sign apparatus (hereinafter, referred to as an "electroluminescent plate") has an upper plate glass having a discharge electrode, and an advertisement pattern to be displayed is formed into a cavity to have a discharge space and adheres to the lower surface of the upper plate glass. It is configured to include a bottom plate glass.

Therefore, since the configuration is simple, it can be manufactured in a thin shape, and can be miniaturized, and at the same time, more detailed letters or symbols can be implemented, more stable to external pressure, and there is an advantage of relieving an electric shock.

However, such an electronic board has a problem in that a defective rate occurs in the process of injecting and discharging gas through a fine gap between the upper glass and the lower glass.

Referring to the attached Figures 1 and 2 to help understand the problem of the flat neon sign device as follows. 1 is a cross-sectional view of a portion of a conventional plasma display-type electric signboard, which may be called a flat panel neon sign, and a manufacturing method thereof is shown in FIG.

First, referring to FIG. 1, a conventional plasma display type display board includes an upper plate glass 10 having a discharge electrode 20 on a lower surface thereof, and a lower plate glass 30 bonded to a lower surface of the upper plate glass by a seal line S. Referring to FIG. It is configured to include).

The lower plate 30 is formed with a cavity 32 forming an advertisement pattern to be displayed. Here, the cavity 32 is formed by engraving a portion of the lower plate glass 30 by etching or the like, the phosphor 34 is provided on the inner surface thereof, and the inert discharge gas G is injected into the inner space thereof. Is filled.

Here, the method of injecting the inert discharge gas (G) into the cavity 32 is installed in communication with the cavity 32, the tip (Tip) made of a glass tube, and then injected through the tip of the inert discharge gas after the tip of the tip Applying a method of melting and sealing one end or forming an injection hole communicating with the cavity 32 in the lower plate glass 30 and injecting an inert discharge gas through the injection hole and then sealing the injection hole with a separate sealing material. do. Of course, before the inert discharge gas is injected into the cavity 32, the inside air should be evacuated and maintained in a vacuum state.

In addition, the discharge electrode 20 provided in the upper plate glass is to cause a discharge action of gas, and is composed of a transparent electrode of high conductivity type. In addition, the lower surface of the discharge electrode 20 is surface hardened so that a fine gap is formed between the discharge electrode 20 and the bottom glass 30 when they are bonded together. And through this gap it is possible to inject the discharge gas into the cavity (32).

Referring to FIG. 2, a method of manufacturing the display board configured as described above is performed. First, a discharge electrode is formed on the upper glass (S10), and a cavity formed as an advertisement pattern is formed on the lower glass (S20). At this time, the lower surface of the discharge electrode is subjected to a surface strengthening treatment (S12) so that a fine gap is formed between the discharge electrode and the lower plate glass.

Then, the upper glass and the lower glass is bonded through the seal line (S30).

Then, the air in the cavity is evacuated to make the cavity in a vacuum state, and at the same time, a gas for generating a discharge is injected, and a getter, which is a very oxidizable material, is injected (S40). At this time, the gas injected into the cavity does not have a specific color by the discharge, and when the ultraviolet rays are simply emitted by the discharge, such ultraviolet rays are applied to the cavity to emit the fired phosphor, for example, neon You will be able to use a mixture of gas, genome, and helium mixed with each other.

When the electric plate is constructed and manufactured as described above, when a predetermined current is applied through the discharge electrode, a discharge action occurs in an inert discharge gas injected in a vacuum state, and thus the phosphor coated in the cavity emits light in the cavity through the emitted ultraviolet rays. Advertising patterns such as letters or logos formed by the display are displayed to obtain the advertising effect.

However, since the gap between the discharge electrode and the lower plate glass is very narrow, the conventional electronic display plate configured as described above frequently causes a problem that injection of the discharge gas is not performed smoothly. In other words, if the injection of the discharge gas is not made correctly, a defective product that does not easily occur the discharge occurs. In addition, since the gap is very narrow, the injection time of the discharge gas is delayed.

The present invention has been made to solve the above-mentioned conventional problems, the object is to provide a space between the discharge electrode of the upper plate glass and the lower plate glass to form a predetermined space to discharge between the discharge electrode and the lower plate glass An object of the present invention is to provide a plasma display type electronic display panel for smoothly injecting gas.

Another object of the present invention is to provide a method of manufacturing the plasma display board.

In order to achieve the above object, the plasma display board according to the present invention is divided into an upper plate glass and a lower plate glass having discharge electrodes corresponding to each other on each lower surface, and the lower plate glass is adhered to and adhered to the discharge electrode of the upper plate glass. A cavity in which an inert discharge gas is filled is formed in an advertisement pattern on one surface of the lower plate glass, and in the cavity, a plasma display type electric display plate is provided between the discharge electrode of the upper plate glass and the lower plate glass. A space bar is provided at the space bar so as to form a predetermined space in which an inert discharge gas is injected and moved between the discharge electrode and the lower plate glass.

Here, the space bar is preferably configured to have a form of a character or a figure.

In accordance with another aspect of the present invention, there is provided a method of manufacturing a display board of a plasma display type, the method including: forming a discharge electrode on a bottom surface of an upper plate glass; Forming a cavity on an upper surface of the lower plate glass in an advertisement pattern, applying a phosphor in the cavity, and forming a discharge electrode on the lower surface of the lower plate glass corresponding to the discharge electrode of the upper plate glass; Silkscreen printing the liquid dielectric on the upper surface of the lower plate glass, and then firing the substrate to prepare a space bar; Bonding the upper glass and the lower glass to have a predetermined space by a space bar; And injecting a gas for causing a discharge into the cavity through the space between the upper glass and the lower glass.

Hereinafter, the present invention will be described in detail with reference to the accompanying drawings. The same components as in the prior art will be described using the same names and symbols.

3 is a cross-sectional view showing a part of a plasma display panel according to the present invention, and FIG. 4 is a block diagram sequentially illustrating a method of manufacturing a plasma display panel according to the present invention.

Referring to FIG. 3, an electric display plate of the plasma display type according to the present invention is divided into an upper plate glass 10 and a lower plate glass 30, and each of the upper plate glass 10 and the lower plate glass 30 corresponds to each other. Discharge electrodes 20-1 and 20-2 are provided. The lower glass 30 is bonded to the lower surface of the discharge electrode 20-1 formed on the upper glass 10 by the seal line S.

Here, the discharge electrodes 20-1 and 20-2 provided in the upper glass 10 and the lower glass 30 are intended to cause gas to be discharged by interaction. It is preferable that it consists of.

Then, the cavity 32 is formed on the upper surface of the lower plate glass 30, and the advertisement pattern to be displayed is formed by the cavity 32. Here, the cavity 32 is formed by engraving a portion of the lower plate glass 30 by etching or the like, the phosphor 34 is provided on the inner surface thereof, and the inert discharge gas G is injected into the inner space thereof. Is filled.

Here, the method of injecting the inert discharge gas (G) into the cavity 32 is installed in communication with the cavity 32, the tip (Tip) made of a glass tube, and then injected through the tip of the inert discharge gas after the tip of the tip Applying a method of melting and sealing one end or forming an injection hole communicating with the cavity 32 in the lower plate glass 30 and injecting an inert discharge gas through the injection hole and then sealing the injection hole with a separate sealing material. do. Of course, before the inert discharge gas is injected into the cavity 32, the inside air should be evacuated and maintained in a vacuum state.

In addition, a space bar 100 is formed on the bottom glass 30 on the surface of the top glass 10 that is bonded to the discharge electrode 20. When the lower glass 30 and the discharge electrodes 20 of the upper glass 10 are bonded to each other by the space bar 100, the lower glass 30 has a predetermined space 102 therebetween, and through this space 102 the cavity. At 32, the discharge gas is injected quickly and accurately.

Here, the space bar 100 is a liquid dielectric material, and a component thereof is a glass raw material (frit), which includes ethyl cellulose resin as a binder to lead glass (PbO) and butyl carminol acetate (BCA) as a solvent. It consists of a solution. The space bar 100 is silkscreen printed in a predetermined pattern on the lower plate glass 30 using a liquid dielectric, and then protruded through a sintering process. At this time, the space bar 100 is preferably formed to have a letter or a figure separately from the advertising pattern of the cavity 32 to have an advertising effect by itself during the day.

Now, with reference to Figure 4 describes the manufacturing method of the electric sign according to the present invention is as follows.

First, a discharge electrode is formed on the bottom surface of the upper glass (S10). A discharge electrode interacting with the discharge electrode of the upper glass is also formed on the lower surface of the lower plate glass, and a cavity formed as an advertisement pattern is formed on the upper surface of the lower plate glass (S20). Of course, a phosphor is provided inside the cavity.

In addition, after the silkscreen printing process is performed in a predetermined pattern using a liquid dielectric on the lower plate glass, a space bar is formed to protrude from the surface through a sintering process at a high temperature of 500 to 600 ° C. for about 30 minutes to 1 hour (S22). .

Then, the discharge electrode of the upper plate glass and the lower plate glass are bonded through the seal line (S30). At this time, a predetermined space is formed between the discharge electrode of the upper glass and the lower glass by the space bar formed on the lower glass.

Then, the air in the cavity is evacuated to make the cavity in a vacuum state, and at the same time, gas for generating a discharge is injected through a space formed between the discharge electrode of the upper glass and the lower glass to be filled in the cavity (S40). At this time, the getter (getter) which is a very high oxidizing material is injected together. Then, the electric sign is completed thin. Here, the gas injected into the cavity does not have a specific color by the discharge, and when ultraviolet rays are simply emitted by the discharge, the ultraviolet rays are applied to the cavity to emit the fired phosphor, for example, neon You will be able to use a mixture of gas, genome, and helium mixed with each other.

Now, the operation and effect of the signboard according to the invention thus constructed and manufactured will be described.

First, when a predetermined current is applied through the discharge electrode, a discharge action occurs in an inert discharge gas injected in a vacuum state, and thus, a letter or logo formed by the cavity while the phosphor coated in the cavity emits light through the emitted ultraviolet rays. As the advertising pattern is displayed, it is possible to maximize the advertising effect at night.

In addition, the display board of the present invention is formed so that the space bar has a character or a figure of a separate advertising pattern, so that the advertising effect can be obtained only by the space bar during the day when the power of the display board is normally cut off.

Therefore, it can be seen that the present invention is a product having an excellent advertising effect compared to the conventional electronic sign.

In addition, the light emitting plate according to the present invention has an advantage that the injection and discharge of the discharge gas is smoothly and quickly because a space is formed between the discharge electrode of the upper plate glass and the lower plate glass through a space bar. The smooth communication of the discharge gas as described above means that the discharge gas is always accurately filled in the cavity, and therefore, there is an advantage that the defective rate due to the imbalance of the discharge gas supply does not occur.

As described above, in the plasma display panel according to the present invention, since space is formed between the upper plate glass and the discharge electrode and the lower plate glass by the space bar, the injection and exhaust of the discharge gas is smooth and quick. Since the space bar is formed to have letters or graphics in the form of advertisements or logos, the space bar can maximize the advertising effect during the day.

While the invention has been shown and described in connection with specific embodiments as described above, it is well known in the art that various modifications and changes can be made without departing from the spirit and scope of the invention as indicated by the claims. Anyone who owns it can easily find out.

1 is a cross-sectional view showing a part of a conventional plasma display type display board;

2 is a block diagram sequentially showing a method of manufacturing a conventional plasma display type display board;

3 is a cross-sectional view showing a portion of a plasma display type display board according to the present invention;

Figure 4 is a block diagram sequentially showing a method of manufacturing a plasma display type signboard according to the present invention.

?? Explanation of symbols for the main parts of the drawings ??

10: top glass 20-1, 20-2: discharge electrode

30: bottom glass 32: cavity

34: phosphor 100: space bar

102: space G: discharge gas

S: Seal Line

Claims (4)

Each of the bottom glass is divided into a top glass and a bottom glass provided with a discharge electrode corresponding to each other, the bottom glass has a structure that is in close contact with the discharge electrode of the top glass, and one surface of the bottom glass is filled with inert discharge gas In the cavity of the plasma display panel, the cavity is formed into an advertisement pattern, and the phosphor is provided in the cavity. And a space bar is provided between the discharge electrode of the upper plate glass and the lower plate glass, and a predetermined space is formed between the discharge electrode and the lower plate glass to inject and move the inert discharge gas. The method of claim 1, The space bar is a display panel of the plasma display type, characterized in that configured to have the form of a character or figure. Forming a discharge electrode on a lower surface of the upper glass; Forming a cavity on an upper surface of the lower plate glass in an advertisement pattern, applying a phosphor in the cavity, and forming a discharge electrode on the lower surface of the lower plate glass corresponding to the discharge electrode of the upper plate glass; Silkscreen printing a liquid dielectric on an upper surface of the lower plate glass, and then firing the same to prepare a space bar; Bonding the upper glass and the lower glass to have a predetermined space by the space bar; And And injecting a gas for causing a discharge into the cavity through the space between the upper plate glass and the lower plate glass. The method of claim 3, The space bar is a display panel manufacturing method of the plasma display type, characterized in that processed to have the form of a character or figure.