JPH04105447U - plasma display panel - Google Patents

Abstract

(57) [Summary] [Structure] At least a part of the peripheral area is made up of two glass substrates 1
The low melting point frit glass 13 is sandwiched between the glass substrates 1 and 12 for sealing.
Seal by applying 4. [Effect] While the conventional sandwich-shaped seal part usually had a space of 4 to 10 mm, the coated seal part only requires a space of about 0.5 to 2 mm, allowing the plasma display panel to be configured as a module for display. Sometimes, the joints in the display are invisible or can be made inconspicuous.

Description

[Detailed explanation of the idea]

0001

[Industrial application field]

The present invention relates to plasma display panels, especially plasma display panels for module configuration. Regarding the display panel.

0002

[Conventional technology]

Conventional plasma display panels are shown in FIGS. 7(a), (b), (c) and FIG. As shown in FIG. Does it have a sealing part made of low melting point frit glass 13 sandwiched in a switch shape? As shown in (a), (b), (c) and FIG. A seal made of low melting point frit glass 13 applied to the side surface around the seam of the plates 12. The structure was either one with a round part or the other with a round part.

0003

[Problem that the idea aims to solve]

In this conventional plasma display panel, in the case of the structure shown in FIGS. 7 and 8, In order to completely seal the sealed gas, a low melting point frit glass 13 is used. It is necessary to seal the seal part with a relatively wide width (usually 4 to 10 mm), and Due to poor pace factor, multiple plasma display panels are arranged vertically or horizontally. The disadvantage is that it creates space constraints when installed in a modular configuration. Ta.

0004 In addition, in the case of the structure shown in FIGS. 9 and 10, low melting point frit glass for sealing is used. In the coating step 13, only the cover substrate 11 and back substrate 12 are combined. condition, and the jig (metal clip, etc.) used for temporarily fixing the combination is not attached. It is difficult to perform the coating process due to the fact that it is difficult to perform the coating process. There was a drawback that the seal was likely to be incomplete due to the cloth.

[0005] Furthermore, in order to prevent the low melting point frit glass 13 from dripping during melting, It is necessary to make the lower board slightly larger to prevent it from hanging, but it is difficult to attach the terminals. In many cases, the cover substrate 11 and the back substrate are separated from each other over the entire periphery due to reasons such as protrusion. It is difficult to increase the size of one of the 12 substrates, and the substrate may sag during encapsulation. There was also the problem that the yield rate was lowered due to the tendency to occur.

[0006] The purpose of this invention is to provide a good space factor, easy work, and reliable sealing. The purpose of the present invention is to provide a plasma display panel with high yield.

[0007]

[Means to solve the problem]

In this invention, two glass substrates with electrodes are connected through a space filled with discharge gas. A plasma display panel is arranged and sealed so that the electrodes face each other. In the channel, at least a portion of the peripheral portion is placed between the two glass substrates with a low melting point. Seal the fritted glass by sandwiching it, and seal the other parts of the periphery. by applying the low melting point frit glass to the sides of the two glass substrates. Seal.

[0008]

[Effect]

According to the above method, the dead space in the coating seal area can be reduced, so the coating When plasma display panels are lined up at the seal part, the display joints are difficult to see. Alternatively, it can be made less noticeable, and the sandwich seal can be By forming by film printing, the coating and sealing work can be made more efficient.

[0009] In addition, after the two boards are assembled, they can be temporarily fixed using metal clips, etc. in a sandwich-like manner. By stopping only at the seal part, there is nothing blocking the application seal part, and the application seal This makes it easier to perform work.

0010 Furthermore, by selecting the sandwich-shaped seal part at an appropriate position, it can prevent sagging. can be done reliably.

[0011]

【Example】

Next, embodiments of the present invention will be described with reference to the drawings.

0012 Figures 1 (a), (b), and (c) are configuration diagrams of the first embodiment of the present invention, and (a) is a plane view. , (b) is a side view, (c) is a bottom view, FIG. 2 is a sectional view taken along the line A-A' in FIG. 1, and FIG. 3 is a FIG. 2 is a cross-sectional view taken along line BB' in FIG. 1. FIG. In addition, to prevent the diagram from becoming complicated, the plasma Electrodes, spacers, etc. inside the map display panel are omitted from illustration.

[0013] The first embodiment, as shown in FIGS. 1(a), (b), (c), FIGS. 2 and 3, First, either the cover substrate 11 or the back substrate 12 on which discharge electrodes, etc. have been formed. Low melting point frit glass 13 is applied to the inner surface of one long side using screen printing technology. It is formed thicker (several hundred μm) than the gap between the discharge spaces.

[0014] Next, the low melting point frit glass 13 is sandwiched between the cube substrates. 11 and back substrate 12, and attach a low melting point film by sandwiching them with metal clips, etc. Only the two long sides sandwiching the lit glass 13 are temporarily fixed.

[0015] Next, the low melting point frit glass 14 is attached to the rectangular side of the back substrate 12 and the cover. The coating is applied to the margins (widths d, d') of the substrate 11 and other parts without any gaps.

[0016] Next, the exhaust pipe 15 is fixed with a low melting point frit glass 16, and the low melting point glass is fixed in an electric furnace or the like. The glass is sealed at a temperature higher than the melting point of the lit glasses 13, 14, and 16, and then released with Ne, etc. It is sealed by filling it with a rare gas capable of generating electricity at a pressure of several hundred Torr.

[0017] In the plasma display panel prototyped as a result, d and d' were set to 1 mm. The low melting frit glasses 13 and 14 can be connected to the cover substrate 11 and the back substrate without hanging down. The plate 12 can be sufficiently sealed, and the four sides can be sealed in a sandwich-like manner. The result is a product that is comparable to the previous version, and requires less man-hours to manufacture by coating and sealing all four sides. Approximately 1/2 compared to that, it is almost equivalent to sandwich sealing on 4 sides, and the horizontal direction ( Plasma display panels that provide seamless display when lined up in the direction of the coating seal Modules can now be provided at the same or lower cost than before.

[0018] 4(a), (b), and (c) are block diagrams of the second embodiment of the present invention, and (a) is a plane view. Figure (b) is a side view, (c) is a bottom view, Figure 5 is a sectional view taken along line C-C' in Figure 4, and Figure 6 is a diagram. 4 is a sectional view taken along line DD' of FIG. In addition, to prevent the diagram from becoming complicated, the plasma display Electrodes, spacers, etc. in the spray panel are omitted from illustration.

[0019] The differences between the second embodiment and the first embodiment shown in FIG. 1 are shown in FIGS. 4, 5, and 6. As shown in FIG. 3 sides are sandwich-like seals), and the width of d' in Fig. 1 is 0, that is, The coating and sealing surfaces of the cover substrate 11 and back substrate 12 are on the same plane, and the low melting point The point is that the frit glass 14 is formed by roller coating. In addition, the seal To prevent the die from dripping, the seal is sealed with the coated seal side facing upward.

[0020] With this method, the dead space can be reduced to about 0.2 to 0.5 mm, and By using roller coating, the number of man-hours required could be further reduced.

[0021]

[Effect of the idea]

As explained above, the present invention provides a method for sealing plasma display panels. Low melting point frit glass is sandwiched between two glass substrates. Seal the other parts and apply low melting point frit glass to the sides of the two glass substrates. Since the seal was made by wrapping the cloth, the conventional sandwich-shaped seal was replaced with a seal. Whereas the dead space due to the seal part was usually 4 to 10 mm, the application seal part In this case, only about 0.5 to 2 mm of dead space is required, and plasma display When arranging display panels to configure and display modules, the display joints It has the effect that it is possible to make it invisible or inconspicuous. .

[0022] Additionally, during manufacturing, the sandwich-shaped seal can be formed using thick film printing. It is excellent in mass production and requires less coating and sealing work. It is not possible to perform coating work with two glass substrates temporarily attached using only the patch-shaped seal. This has the effect of greatly improving workability.

[0023] Furthermore, by selecting the sandwich-shaped seal part at an appropriate position, the application seal can be It also has the effect of completely preventing sagging caused by the metal and improving yield.

[Brief explanation of drawings]

FIG. 1 is a configuration diagram of a first embodiment of the present invention.

FIG. 2 is a sectional view taken along line AA' in FIG. 1;

FIG. 3 is a sectional view taken along line BB' in FIG. 1;

FIG. 4 is a configuration diagram of a second embodiment of the present invention.

FIG. 5 is a sectional view taken along line CC' in FIG. 4;

FIG. 6 is a sectional view taken along the line DD' in FIG. 4;

FIG. 7 is a configuration diagram of an example of a conventional plasma display panel.

8 is a sectional view taken along the line EE' in FIG. 7. FIG.

FIG. 9 is a configuration diagram of another example of a conventional plasma display panel.

10 is a sectional view taken along line FF' in FIG. 9;

[Explanation of symbols]

11 Cover board 12 Back board 13,14,16 Low melting point frit glass 15 Exhaust pipe

Claims (1)

[Scope of utility model registration request] 1. A plasma display panel in which two glass substrates having electrodes are arranged and sealed so that the electrodes face each other with a space filled with discharge gas interposed therebetween. A portion is sealed by sandwiching low melting point frit glass between the two glass substrates, and the other portion of the periphery is coated with the low melting point frit glass on the sides of the two glass substrates. A plasma display panel characterized by a seal.