JPS59178476A - Manufacturing method of flat display panel - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

[Detailed description of the invention] (&l Technical field of invention The present invention relates to a method of manufacturing a flat display panel.

In particular, the present invention is directed to an improvement in a method of forming a spacer for defining a gas discharge gap in a flat display panel using gas discharge.

(1)) Background of the Technology - A flat display panel known as an iK plasma display panel consists of a pair of glass panels each having a plurality of vertical and horizontal electrodes covered by a dielectric layer on their inner surfaces. After the substrates are placed facing each other with a predetermined gas discharge gap and the periphery thereof is hermetically sealed with low melting point glass for sealing, a predetermined discharge gas is sealed in the gas discharge gap to discharge the gas. This constitutes a discharge area. In order to keep the gas discharge gap uniform at each part and to prevent deformation of the substrate due to the pressure difference between the inside and outside, a W configuration is adopted in which spacers are interposed throughout the gap facing the substrate.

(C) Difference between the prior art and the prior art In order to maintain the force discharge gap of the above-mentioned flat display panel at a constant interval, a 1i1 is applied to the opposing substrate.
In order to identify and distribute power to a spacer defining one gap, conventionally, for example, C1) is placed at a predetermined position on one of a pair of glass component substrates disposed opposite to each other.

Fix the spacer with an adhesive such as water glass. (2) Spacers are placed at predetermined positions on the surface of the dielectric coating layer made of low-melting glass coated on one glass substrate on which multiple electrodes are arranged, and the dielectric coating layer 9-11 is formed. When melting to form a dielectric layer, the spacer is fixed at the same time.

(3) A fixing method is used, such as welding a metal spacer to a predetermined electrode portion on one glass substrate on which a plurality of electrodes are disposed.

However, in the above-mentioned spacer fixing force method, for example (1), in order to increase the adhesive strength of the spacer,
It is necessary that the area of the water glass applied be greater than the area of the spacer, and as shown in the partially enlarged cross-sectional view (a) of Figure 1, the water that protrudes from the disc-shaped spacer 2 fixed on the glass constituent thread &1 The three glass layers change the discharge ritIfjA around the spacer 2. In example (2), the entire dielectric layer is once in a molten state, making it easier for the spherical or round bar-shaped spacer to move from its fixed position. The @electric material barbs are drawn around the spacer 2 placed on the spacer 1a by surface tension, and the thickness of the dielectric layer 4 around the spacer 2 becomes non-uniform. Furthermore, in the example (3), there is no particular problem when 1) a c-drive type gas discharge display panel is constructed, but Aat1git! When removing an IJ-type gas discharge display panel, a dielectric layer 4 is coated on the entire surface of the glass substrate &la to which, for example, a rectangular plate-shaped metal sheave 2 is welded, as shown in the first part (C). To form, dazzling Subazu 2 @
Each rise of the dielectric layer 4 occurs in the surrounding area.

2. The effect is the same as when a large spacer is placed. It is not possible to make the quality of the force discharge gap uniform, and it not only has a negative effect on the h-characteristics of the discharge point on the same side of the spacer, but also
There is a drawback that a defective discharge point occurs.

This makes it difficult to increase the resolution of the flat display panel.

ta+ OBJECT OF THE INVENTION In order to eliminate the above-mentioned conventional drawbacks, the present invention provides a spacer for defining the gap between the gas discharge characters of the panel at a predetermined position on at least one of the pair of panel component substrates arranged facing each other. A glass equivalent to the low melting point glass for panel sealing is used and fixed by a temporary firing process of the low melting point glass layer for sealing provided on the panel component substrate or a panel sealing process. The object of the present invention is to provide a novel method for manufacturing a flat display panel that improves viscosity and eliminates defective discharge points.

(e) Structure and object of the invention According to the present invention, a pair of panel component substrates each having a plurality of electrodes supported on at least one substrate are arranged facing each other with a predetermined gas discharge space in between. In the method of manufacturing a panel by sealing with a low melting point glass for sealing, a glass equivalent to the low melting point glass for sealing the panel is placed at a predetermined position on at least one of the pair of panel component substrates. A spacer is temporarily installed through a low melting point glass, and the spacer is fixed by a temporary firing process of a low melting point glass layer for panel sealing around the substrate, or a sealing process □ for both panel constituent substrates. This has been achieved by providing a manufacturing method for a flat display panel and panel characterized by the following (fl) Embodiments of the Invention The embodiments of the manufacturing method of the present invention will be explained in detail with reference to the drawings below. .

FIGS. 2 and 3 are schematic cross-sectional views illustrating, in order of process, an embodiment in which the manufacturing method according to the present invention is applied to manufacturing a flat display panel of the counter electrode square type.

In the second part 1, 21 and 22 are a pair of glass substrates, and on the inner surfaces of the glass substrates 21 and 22, a plurality of horizontal electrodes 23. Direction and direction vertical electrodes 24 are arranged, and each surface N thereof is covered with a dielectric layer i25. A low melting point glass layer 26 for panel sealing, which has a melting point lower than that of the current conductor layer 25, is placed on the base of the pair of panel component substrates 210 and 220 configured in this manner.
．． 27, at the same time, apply low melting point glass i26.27 for panel sealing to a plurality of predetermined positions on one of the pair of panel component substrates 210 and 220, for example, 220. A disk-shaped spacer 28 made of, for example, glass, ceramic, or 14% gold, coated with a low melting point glass of the same material as the above, is arranged respectively, or.

The low melting point glass for panel sealing is applied in advance at predetermined positions where the spacers 28 are to be placed, and the disk-shaped spacers 28 to which the low melting point glass is not applied are respectively placed thereon. After that, one panel Umenari substrate 22 is attached.
When the low melting point glass layer 27 for panel sealing of No. 0 is preliminarily fired, the low melting point glass in the space f'28 arrangement portion is simultaneously melted and each spacer 28 is fixed. Of course, in this pre-firing step, the other panel component substrate 210 that becomes the pair
The upper low melting point glass layer 26 for sealing the pile is also pre-fired.

Next, a protective layer 29 made of magnesium oxide (MgO) or the like is selectively deposited on the upper surface of each dielectric layer 25 on the pair of panel constituent substrates 210 and 220.

Thereafter, the pair of panel component substrates 210 and 220 configured in this manner are placed facing each other with the plurality of spacers 28 in between, as shown in FIG. 3, and both substrates 210 and 220 are sealed by a sealing process. By doing so, the desired display panel is completed. During this sealing process, the spacer 2
The low melting point glass that had fixed the spacer 8 is melted again, but due to the presence of the other panel component substrate 210, surface tension prevents it from flowing out of the spacer 28 and it is fixed to the pattern. Therefore, the positional shift of the spacer 28 and @electric body 1
Since there is no change in the thickness of iJ25, gas release IJ
The L gap 30 can be accurately and uniformly image-held, and a display panel with good discharge characteristics and no display defects can be obtained with good angle conversion.

In the above embodiment, the gas discharge gap 3 of the panel
An example has been described in which a disc-shaped spacer 28 is used as a spacer that defines 0. However, the present invention is not limited to such a shape. Disc with melting point glass suspicious hole)
Of course, the present invention can be implemented using a spacer having a shape of a square or a rectangular plate. In this example, it is shortened.

The explanation has been made using an example in which after the spacer 28 is placed at a predetermined location on the electric layer 25 of the panel component substrate 220, the insulation layer b29 made of MgO or the like is selectively formed on the dielectric layer 25. However, the present invention is not limited to this.9For example, after forming a protective layer 29 made of MgO or the like on the dielectric layer 25, a space f'28 is placed at a predetermined position on the protective layer 29. , they may be fixed at the same time in the panel sealing process. Furthermore, in this embodiment, an example of a panel with a matrix electrode structure was explained, but the present invention is different.

Applicable to display panels with special electrode structures such as Numerink type or Al7 Anonymous type.'5J
Nonako (!: Needless to say.

(g) Effects of the Invention As is clear from the above explanation, according to the method for manufacturing a flat display panel according to the present invention, a pair of pile-ru structures are provided in which spacers defining the gas discharge gap of one display panel are arranged opposite each other. A method is used in which a low melting point glass for panel sealing is used on one of the panel constituent substrates, and a molten layer is fixed by a temporary firing process or a sealing process of the low melting point glass layer for panel sealing. Therefore, the low melting point glass for sealing does not flow out of the spacer, and the positional deviation of the spacer is also eliminated, making it possible to reliably keep the spacer in the fixed position. Furthermore, the thickness of the dielectric layer on one side where the spacer is fixed is 1
Since no movement occurs, the ability of CIJ is to precisely and uniformly define the scum discharge gap.

It is possible to manufacture flat display panels with high display quality and excellent discharge characteristics without display defects. others,
The spacer alignment is easy.

The self-W transformation of the space sentence becomes Tj'k'e, etc.

People have advantages over people. Therefore, it is extremely advantageous to apply it to the manufacture of high-resolution matrix-type plate-like waste release/removal panels.

In the above embodiments, the explanation was given for an AC running type display panel which is formed by coating a dielectric layer on a glass substrate supporting electrodes. Needless to say, it is also applicable to the manufacture of DCt4: dynamic type glaze scum discharge display panels that do not use DCt4, and similar effects can be obtained. It goes without saying that the manufacturing method of the present invention can also be applied to flat display panels using liquid display media such as twisted liquid crystals.

[Brief explanation of the drawing]

FIG. 1 (al (1)l (el) is a partially enlarged perspective view illustrating the spacer arrangement configuration of a conventional flat display panel, and FIGS. 2 and 3 show the manufacturing method according to the present invention for a matrix-type flat display panel. 1 is a schematic cross-sectional view illustrating an embodiment applied to manufacturing a gas discharge display panel in the order of steps. In the drawing, 21 and 22 are glass plates, 23 is a horizontal electrode, 24 is a vertical pole, and 25 is a dielectric layer. , 26 and 27 are low melting point glass layers for panel sealing, 28 are spacers, 29 are protective layers, and 210 and 220 are panel constituent substrates.

Claims (1)

[Claims] A device comprising m number of electrodes supported on at least one substrate.
In a method for manufacturing a panel in which a pair of panel component substrates are arranged opposite to each other with a predetermined gas discharge gap in between and the periphery of one is sealed with low melting point glass for sealing, the pair of pile-ru component substrates are A spacer is temporarily installed at a predetermined position on at least one of the panel constituent substrates through a low melting point glass equivalent to the above low melting point glass for panel sealing, and the spacer is attached to the above base &
Temporary firing process of the surrounding panel sealing paper FIIi point glass layer. Alternatively, a method for manufacturing a flat display panel, characterized in that one is placed in the sealing process for both panel constituent substrates.