JPH02204939A - Gas discharge display panel - Google Patents

Abstract

PURPOSE:To take out leads of a discharge electrode installed on a spacer simply and with good reliability to the outside by forming each lead from an electroconductive substance on the surface of crystallized glass frit. CONSTITUTION:A transparent face plate 60 and spacers 20, 21 are piled up and the peripheries are fusion welded together by the use of crystalline glass frit 70. A lead 80 of an aux. anode 40 is formed on the surface of this glass frit 70 crystallized, for ex. by the use of Au paste. This aux. anode lead 80 connects a terminal 41 of the aux. anode 40 with a connection terminal 42 for an external circuit provided on the abovementioned transparent face plate 60. These transparent face plate 60, spacers 20, 21, 22, and insulation base board 10 are piled up to constitute a single body construction, and the peripheries are sealed airtightly with a low melting point glass frit 90 for sealing.

Description

DETAILED DESCRIPTION OF THE INVENTION [Industrial Application Field] The present invention relates to a gas discharge display panel that utilizes visible light or ultraviolet light generated by gas discharge.

[Conventional technology]

Gas discharge display panels having spacers forming discharge cells are not limited to the known example described in Japanese Patent Application No. 47-124468, but also include gas discharge display panels having a structure in which electrodes are inserted between spacers. used a thin metal plate etched into a rectangular shape as the internal electrode, and after the panel was hermetically sealed, one end of the rectangular strip was used as an electrode lead wire and connected to an external drive circuit.

Another method for taking out the lead wires of electrodes formed by thick film printing is to print conductor electrodes on a glass plate and form each electrode as described in Technical Report No. 78-96. A strip-shaped Fθ-Ni plate or the like was placed along the terminals of the terminal, adhered with a conductive material, and one end of the strip was connected to an external circuit.

[Problem to be solved by the invention]

The method of using metal strips as discharge electrodes and lead wires as described in the above conventional technology is difficult to handle when the discharge cell pitch is small, the screen is large, or the shape is complicated, and It had the disadvantage of being easily short-circuited.

Furthermore, the method in which the electrodes are formed on a spacer using a thick film printing method and a strip-shaped metal lead wire is connected has the disadvantage of being easily short-circuited as described above, and the spacer is thin and may be damaged when connecting the lead wire. Because it is easy to use, it also has problems such as lack of reliability and high cost.

An object of the present invention is to use a simple structure to take out the electrode lead wires of the discharge electrodes provided on the spacer to the outside, thereby simplifying the panel manufacturing method, reducing costs, and improving reliability.

[Means to solve the problem]

The above purpose is to take out the lead wire of the discharge electrode provided on the spacer to the outside. First, the spacer and the face plate or substrate are melted and fixed using a crystalline low-melting glass frit, and the surface of the crystallized glass frit is This is accomplished by forming lead wires using a conductive material, connecting the electrodes on the spacer to electrode terminals previously provided on the face plate, and then hermetically sealing the face plate, spacer, and substrate together.

[Effect]

Glass frits with a low melting point (~450°C) are usually used to bond soda glass, lead glass, etc. or to seal them airtight.
is used. Among these glass frits, crystalline glass frit is heated and melted, and when it is crystallized, it has a high softening point even when reheated, and has the property that it does not deform even when heated to the initial working temperature. Therefore, if lead wires are formed on the surface of crystallized glass frit using a conductive material, the frit glass will not soften even if reheated for panel sealing, and the lead wires formed on the surface will not break. It operates stably without any short circuit or short circuit. Therefore, the lead wire of the discharge electrode provided on the spacer can be easily and reliably taken out to the outside, and the panel manufacturing method can be simplified.

〔Example〕

An embodiment of the present invention will be described below with reference to FIG. 1st
The figure is a partially sectional perspective view showing the structure of a gas discharge display panel according to the present invention. Here, 1° is an insulating substrate made of soda glass, ceramic, etc., and cathode lead 11.0 is made of Au or Ag. Resistance 12. The cathode 13 is formed by a thick film printing method or the like. A resistor 12 is connected in series with each cathode, and the entire surface except for the cathode 13, which performs a memory operation, is covered with an insulating layer 14.
covered with.

20.11.22 is a spacer for forming a discharge cell, and it is used by laminating chemically etched thin glass sheets of about 0.2 m, or by etching photosensitive glass (photoceram, etc.). .

The cross section of the auxiliary discharge space 30 is, for example, 0.3 am wide and 0.3 am high.
2+m, an auxiliary anode 40 is provided at one end and performs auxiliary discharge with the cathode 13. The auxiliary anode $41140 is formed by printing and firing Ni paste on the surface of the spacer 21.

The auxiliary anode wires are arranged vertically and the cathode leads are arranged horizontally to form a matrix.

50 is a display discharge space 1. For example, in the case of a cell pitch of 11 Ifi, the wall surface of the 0 display discharge space 50 is formed with a cross section of 0.8 mm and a length of 0.5 to 31111 in the direction perpendicular to the translucent face plate 60. A phosphor 51 is coated, and is excited and emitted by ultraviolet rays generated by display discharge to display 0. For example,
If each cell is coated with a phosphor that emits red, green, and blue in one color, it is possible to display color television images.

A display anode 61 is attached to a translucent face plate 60 made of soda glass or the like.
It is formed by a thick film printing method using i or Au, and a black insulating layer (not shown) is provided except for the display area.

In order to take out the electrode lead of the auxiliary anode 40 formed on the spacer 21, first, the transparent face plate 60 and the spacer 21 are
．． 21 and the surrounding area is melted and fixed using a crystalline glass frit 70 (for example, Iwaki Glass 11WF-7572°7575W, Asahi Glass @ASF-1307, etc.). The working conditions for crystalline glass frit are usually held at 450°C for 30 minutes to melt and crystallize it.

Next, the lead wire 80 of the auxiliary anode 40 is attached to the surface of the crystallized glass frit 70 using, for example, Au paste (ESL).
g18839 etc.). The forming method may be, for example, a thick film printing method or a transfer method.

It doesn't matter if it's handwritten.

The auxiliary anode lead wire 80 connects the terminal 41 of the auxiliary anode 40 and the terminal 42 for connection to an external circuit provided on the transparent face plate 60.

The light-transmitting face plate 60, the spacers 20, 21, 22, and the insulating substrate 10 are stacked together, and the periphery is hermetically sealed with a low-melting glass frit 90 for sealing. This glass frit 90 may be the crystalline glass frit described above, or may be an amorphous glass frit (for example, Nichiden Glass @LS-0
206 etc.) may also be used.

The gas discharge display panel manufactured with the above configuration is
Furthermore, each discharge cell is sealed with X e from the outside world.

It is completed by sealing with one or a mixture of rare gases such as Ar, He, Ne, and Kr. Enclosing a small amount of Hg is effective in preventing spatter on the electrode.

FIG. 2 is a sectional view showing another embodiment of the gas discharge display panel according to the present invention.

In this embodiment, a lead wire of a discharge electrode provided on a spacer is taken out onto a substrate.A terminal electrode 42 is provided on an insulating substrate 10, an auxiliary anode 40 is formed on a spacer 21, and then a terminal electrode 42 is provided on an insulating substrate 10. Spacer 21 is bonded with crystalline glass frit 70, lead wire 80 is formed on its surface, and auxiliary anode 40 and terminal 42 are connected.

Spacer 20. In the one-piece configuration in which the translucent face plate 60 is mounted and the sealing glass frit 90 is used to hermetically seal it, the terminal of the auxiliary anode is exposed on the substrate.

For example, a connector can be directly attached to the drive circuit, making connection to the circuit even easier.

As described in detail above, according to this embodiment, it becomes possible to take out the lead wires of the electrodes provided on the spacer to the outside by a simple method, and the panel manufacturing process is greatly streamlined.

〔Effect of the invention〕

As mentioned above, the gas discharge panel according to the present invention is extremely simple, using commercially available crystalline glass frit in order to take out the lead wires of the electrodes provided on the spacer to the outside, and special materials and processes are also required. It can also be applied to electrodes formed using thick-film printing, which greatly simplifies the panel manufacturing process and reduces costs.

Furthermore, accidents such as breakage of lead wires and short circuits can be prevented, and reliability can be improved.

Furthermore, it is now possible to directly attach a connector to the drive circuit, and the effect is very large because the WJ can be simply connected.

[Brief explanation of the drawing]

FIG. 1 is a partially sectional perspective view of a gas discharge display panel according to one embodiment of the present invention, and FIG. 2 is a sectional view showing another embodiment of the present invention. 10... Insulating substrate, 13... Cathode, 20, 21.
22...Spacer, 40...Auxiliary anode, 6o...
Transparent face plate, 61...Display anode, 70...Crystalline glass frit, 80...Auxiliary anode lead wire, 90...
・Glass frit for sealing. dirt l Σ

Claims (1)

[Claims] 1. In a gas discharge display panel having a transparent face plate, an insulating substrate, and a spacer placed between the two plates to form a discharge cell, the spacer is melted and fixed to the face plate or the substrate using crystalline glass, A gas discharge display panel characterized in that an electrode lead group is formed on the surface of the crystalline glass using a conductive material, and the electrodes provided on the spacer are connected to the terminals provided on the face plate or the substrate.