JPH07105200B2 - Gas discharge type display device - Google Patents

Description

Description: FIELD OF THE INVENTION The present invention relates to a gas discharge type display device for displaying characters and figures using gas discharge.

[Background of the Invention]

A typical conventional gas discharge display device (for example, Japanese Patent Laid-Open No.
51-85318) in FIG. 1 (exploded perspective view) and second
It is shown in the figure (cross-sectional view). This device is provided with a plurality of cathodes 20, a bus bar 21 thereof, and a resistor 30 for each cathode, and a substrate 10 on which an insulating layer 40 is provided except for the operating portion of the cathode 20, and a spacer having an auxiliary discharge space 60. 50, the auxiliary anode 70 that three-dimensionally intersects with the cathode bus 21 and the spacer 50.
And a plurality of ionization coupling paths 10 corresponding to the auxiliary discharge space 60.
A spacer 90 having 0, a spacer 110 having a plurality of display discharge spaces 120 corresponding to the ionization coupling path 100, and a plurality of anodes provided in parallel with each other on the back surface of the transparent face plate 150 so as to intersect with the auxiliary anode 70. 140, at least the phosphor 130 provided on the side wall of the display discharge space, and at least the auxiliary discharge space 60 and the gas filled in the display discharge space 120.

The cross section of one discharge cell that constitutes this display device is as shown in FIG. 2, and the major features are: (1) One discharge cell has three electrodes, cathode 20, auxiliary anode 70, and anode 140, and the cathode 20 And (2) using an auxiliary discharge between the cathode 20 and the auxiliary anode 70, and an ionization coupling phenomenon between the cathode 20 and the anode 140 with the auxiliary discharge. Display discharge for information display is shared by the resistor 30 and both discharges. (3) Since the cathode 20 is provided on the substrate 10, there are few restrictions on the cathode material (electron discharge coefficient It is easy to form a large material), and it is also easy to form the resistor 30. (4) The display discharge can be operated at low voltage and high speed by using ionization coupling with the auxiliary discharge, and also has a memory function. (5) The display discharge was applied between the anode 140 and the cathode 20. High luminous efficiency can be obtained by maintaining a pulse voltage with a narrow pulse width t _p (0 <t _p <3 μs).
52-117024), and the like.

However, when the device is made large or the discharge cell is made small to have a high density (high definition), (a) it is difficult to form and take out the auxiliary anode 70, and (b) the ionization coupling path. It is difficult to form 100, and (c) the spacer 50 and the spacer 90 are required, which increases the number of components and further increases the cost.

[Object of the Invention]

An object of the present invention is to provide a display device having a simple structure suitable for a high-definition large-sized display that solves the problems while taking advantage of the excellent features of the prior art.

[Outline of Invention]

The present invention, as shown in FIG.
The dielectric layer 160 is filled between the anode 20 and the auxiliary anode 70, and the cathode 2
A resistor 30 is connected to 0 to generate an auxiliary discharge (AC discharge type) between the cathode 20 and the auxiliary anode 70, and then an ionization coupling phenomenon between the cathode 20 and the anode 140 is formed. The present invention is characterized in that it is configured to generate a display discharge for displaying information to solve the above-mentioned problems of the prior art.

Example of Invention

An embodiment of the present invention will be described below with reference to FIGS. 3 and 4. FIG. 3 shows a sectional view of a discharge cell constituting the display device of FIG. 4 (exploded perspective view). A plurality of parallel auxiliary anodes 70 are formed on the substrate 10 by printing and firing Au or Ag spaces. A dielectric layer 160 formed by printing and firing a glass paste, for example, is provided thereon. Next, a plurality of cathode buses 21 formed by printing and firing Au or Ag paste are formed in parallel with each other so as to intersect with the auxiliary anode 70. At this time,
A plurality of cathodes 20 and a plurality of resistors 30 corresponding to the number of the cathodes 20.
A plurality of conducting wires 22 for connecting and are simultaneously formed by using the same material.

Next, each of the conducting wires 22 and the front cathode bus bar 21 are connected by a resistor 30 obtained by printing and firing a resistance paste or the like.

Further, a cathode 20 having an area slightly larger than that of the conductor 22 is provided on each of the conductors 22 by printing and firing Ni paste or the like.

Next, an insulating layer 40 formed by printing and firing glass paste or the like is provided except at least the cathode bus 21, the resistor 30, the conducting wire 22, and the operating portion of the cathode 20. A spacer 110 having a plurality of display discharge spaces 120 corresponding to the cathode 20 is provided thereon. The spacer 110 may be formed by a thick film technique or the like (formed on the substrate or the face plate). On the other hand, on the back surface of the face plate 150 made of transparent glass or the like, at least corresponding to (parallel to) the auxiliary anode 70.
A plurality of anodes 140 are provided so that at least a part thereof is exposed to the display discharge space 120. In order to increase the display contrast ratio, at least the face plate 150 may be processed into a non-reflection surface. In the case of color display, a phosphor 130 is provided at least on the side wall of the display discharge space. The face plate 150 thus formed and the substrate 10 are overlapped with each other via the spacer 110, the periphery is hermetically sealed using a glass frit or the like, and after heating and exhausting, Xe or He-
Enclose a gas such as Xe, Ne-Xe, Ne, Ne-Ar at 10 to 600 Torr.

On the other hand, while using the ionization coupling phenomenon by the auxiliary discharge, between the anode 140 and the cathode 20, the discharge sustaining pulse voltage train for maintaining the display discharge and the pulse voltage for generating the display discharge corresponding to the display information signal. Basically, the display discharge is provided with a memory function by superimposing the erase pulse voltage on the display discharge voltage.

〔The invention's effect〕

As described above, the present invention fills the space between the auxiliary anode 70 and the cathode 20 with the dielectric layer 160, eliminating the need for the auxiliary discharge space 60 of the prior art, and thereby the auxiliary discharge space 60 and the display discharge space 120. There is an effect that the spacer 80 having the ionization coupling path 100 for connecting to and from is unnecessary and the structure can be simplified, the device can be upsized, the definition can be increased, and the cost can be reduced.

Further, a resistor 30 is provided for each cathode 20, and a display discharge for information display is formed between the anode 140 and the cathode 20 by using an ionization coupling phenomenon with the auxiliary discharge, and a low voltage (200 V) and a high speed (0.1 V) are applied. It has an effect of achieving high brightness and high efficiency display by operating in μs) and having a memory function.

[Brief description of drawings]

1 is an exploded perspective view of the prior art, FIG. 2 is a sectional view of a discharge cell constituting FIG. 1, FIG. 3 is a sectional view of a discharge cell of the present invention, and FIG. 4 is a discharge cell of FIG. 3 is an exploded perspective view of the display device of the present invention formed in FIG. 10 ... Substrate, 20 ... Cathode, 30 ... Resistor, 40 ... Insulating layer,
50 …… Spacer I, 60 …… Auxiliary discharge space, 70 …… Auxiliary anode, 90 …… Spacer II, 100 …… Ionizing coupling path, 110 …… Spacer III, 120 …… Display discharge space, 130 …… Phosphor , 140
…… Anode, 150 …… face plate, 160 …… derivative layer, 21 …… cathode busbar, 141 …… anode busbar, 22,142 …… conductor wire.

Claims (2)

[Claims] 1. A plurality of anodes, a plurality of auxiliary anodes, and a plurality of cathodes, wherein the anodes, the cathodes, and the auxiliary anodes intersect three-dimensionally, and between the auxiliary anodes and the cathodes. A dielectric is provided, and a display discharge space is provided between the cathode and the anode corresponding to the intersection of the cathode and the anode, and each display discharge space is connected to the cathode. Gas discharge type display device, characterized in that the discharge resistance is provided, and these are hermetically sealed, and the auxiliary discharge generated between the auxiliary anode and the cathode is an AC discharge through the resistance. . 2. The gas discharge type display device according to claim 1, wherein a phosphor is provided on a side wall of the display discharge space.