JPS61273832A - Gas discharge type display device - Google Patents

Abstract

PURPOSE:To simplify the structure of a display device by generating a display discharge by means of ionization coupling phenomenon between an anode and an auxiliary discharge generated in the space between a cathode and an auxiliary anode, the space being filled with a dielectric material layer and a resistor being connected to the cathode. CONSTITUTION:Multiple auxiliary anodes 70 are formed parallelly on a substrate 10, over which a dielectric layer 160 is provided. Multiple cathode busbars 21 are placed parallelly crossing the auxiliary anodes 70. Multiple resistors 30 and lead wires 22 are formed with each lead wire provided with a cathode 20, and these are covered by an insulation layer 40. Then a spacer 110, which has display discharge spaces 120 corresponding to the cathodes 20, is placed, over which a transparent face plate 150 provided with multiple anodes 140 parallel to the auxiliary anodes 70 is placed. Inner space of this structure is filled with a gas such as Xe and is hermetically sealed to form a display device. Thus the number of parts is reduced and the structure is simplified, enabling large or high-precision display device to be made easily.

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Application of the Invention] The present invention relates to a gas discharge type display device that displays characters, figures, etc. using gas discharge.

[Background of the invention]

A typical conventional gas discharge type display device (for example, Japanese Patent Application Laid-Open No. 51-85318) is shown in FIG. 1 (exploded perspective view) and FIG. 2 (cross-sectional view). A resistor 30 is provided for each bus bar 21 and each cathode,
A substrate 10 on which an insulating layer 40 is provided except for the moving part of the cathode 20, and a spacer 5 having an auxiliary discharge space 60.
0, an auxiliary anode 70 that three-dimensionally intersects with the cathode bus bar 21 and the spacer 50, and the auxiliary discharge space 6.
0, a spacer 90 having a plurality of ionization coupling paths 100 corresponding to the ionization coupling paths 100, a spacer 110 having a plurality of display discharge spaces 120 corresponding to the ionization coupling paths 100, and a transparent face plate 15.
0, a plurality of anodes 140 provided in parallel to each other so as to intersect with the auxiliary anode 70, a phosphor 130 provided on at least the side wall of the display discharge space, and at least the auxiliary discharge space 60□(・'j and a gas sealed in the display discharge space 120.

,gu2. ) in' 1 that configures this display device
Two discharge cells □, 2. □1, Oh. *. ,
□yo,'::゛・1 1''9゛r (1) Connect one discharge cell to cathode 2
0. Auxiliary anode 70°f:, 6J, pole 14
06F) 3 electrodes 2, front or cathode. . ,. I.

゛Winter 1 ・゛Constructed with a connected resistor 30 1, ′, Go (2) An auxiliary number ↑ current is applied between the cathode 20 and the auxiliary anode 70, and the , ゛, Display discharge for information display using the ionization coupling phenomenon with the auxiliary discharge is connected to the resistor 3o.
and 1゛ is shared by the above-mentioned surface discharge.

:17 (3) Since the cathode 20 is provided on the substrate 10, there are few restrictions on the cathode material (it is easy to form a material with a large electron discharge coefficient), and the resistor 3o no 2 (゛, 3)・Easy to form・：”
(4) It can operate at low voltage and at high speed by using ionization coupling between the display discharge and the auxiliary discharge, and it also has a memory function. The narrow pulse width t, applied between 20
S) High luminous efficiency can be obtained by maintaining it with a pulse voltage (for example, Japanese Patent Laid-Open No. 117024/1983).

However, when increasing the size of this device or miniaturizing the discharge cells to increase the density (high definition), (a) it becomes difficult to form and take out the auxiliary anode 70.

(b) It becomes difficult to form the ionization coupling path 100.

(c) The spacer 50 and the spacer 9o are required, which increases the number of parts and further increases the cost.

There are problems such as:

[Purpose of the invention]

SUMMARY OF THE INVENTION An object of the present invention is to provide a display device with a simple structure suitable for high-definition, large-sized displays that takes advantage of the excellent features of the prior art and solves its problems.

,, [Summary of the Invention] As shown in FIG. 3 (cross-sectional view of a discharge cell), the present invention provides a dielectric layer between the cathode 20 and the auxiliary anode 70.
iti+20 (*r, :it・Figure 5 9゛,゛Z;, 3., As shown in the anode 140), resistor 3
0 is connected, and an auxiliary discharge (AC ℃ 1゜Lゝ++ □゛゛ discharge type) is generated between the cathode 20 and the auxiliary anode 70, and then the cathode 20
The problem of the prior art is solved by using an ionization coupling phenomenon between the auxiliary discharge and the anode 140 to generate a display discharge for displaying information.

゛ [Embodiments of the Invention] Embodiments of the present invention will be described below with reference to FIGS. 3, 4, and 5. Figure 3 shows a cross-sectional view of a discharge cell constituting the display device in Figure 4 (exploded □° perspective view). It is formed by printing and firing. For example, print glass paste on top of this, □,
- A dielectric layer 160 formed by firing is provided. Next, a cathode bus bar 2 is formed by printing and firing 'Au or A g paste, etc.
1 are formed in parallel to each other so as to intersect with the auxiliary anode 70. At this time, a plurality of cathodes 20 and the cathode 20
A plurality of conductive wires 22 for connecting a plurality of resistors 30 corresponding to the number of resistors 30 are simultaneously formed using the same material.

Next, each of the conductive wires 22 and the front cathode bus bar 21 are connected with a resistor 3o made by printing and firing a resistor paste or the like.

Further, on each of the conductive wires 22, -
A cathode 2o with a large circumferential area is provided by printing and baking Ni paste or the like.

Next, an insulating layer 4 (liR4t!,
=O. , □1lnli20i:JjSL
A spacer 110 having a plurality of display discharge spaces 120
will be established. Note that the spacer 110 may be formed using 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, a plurality of anodes 140 are provided so as to correspond to (parallel to) at least the auxiliary 114170 and at least a part of which is exposed to the display discharge space 120. . In order to increase the contrast ratio of the display, it is preferable to process at least the face plate 150 into a non-reflective surface.In the case of color display, at least the side wall of the display discharge space is coated with phosphor 1.
30 will be provided. The face plate 150 and the substrate 10 formed in this way are connected to each other by the spacer "' 1
10, the surroundings are hermetically sealed using glass frit, etc., and after heating and exhausting, Xe, He-Xe, N
gas such as e-Xe, Ne, Ne-Ar, etc. from 10 to 600
Enclose Torr.

FIG. 5 shows a cross section of a discharge cell according to another embodiment. This embodiment has a resistor 3 connected in series with the cathode 20 in FIG.
0 is connected in series with the anode 140 as shown in FIG.

In this figure, 141 is an anode bus bar, 142 is the anode 140
A conductive wire connecting the resistor 30 and the resistor 30 is shown.

This configuration has the advantage of facilitating the formation (material, etc.) of the dielectric layer 160.

Next, the operating principle of this device will be briefly explained. First, pulsed electricity is applied between the auxiliary anode 70 and the cathode 20 to generate an auxiliary discharge.

On the other hand, the ionization coupling phenomenon caused by the auxiliary discharge is used, and between the anode 140 and the cathode 20, a discharge sustaining pulse voltage train for maintaining the display discharge and a pulse voltage generated for the display discharge corresponding to the display information signal are provided. The basic idea is to superimpose the erase pulse voltage and the erase pulse voltage to provide the display discharge with a memory function.

In the above embodiment, the resistor 30 may be omitted when impedance specific to discharge (for example, abnormal discharge mode) or pulse memory mode is used.

(Effects of the Invention) As explained above, the present invention fills the space between the auxiliary anode 70 and the cathode 20 with the dielectric layer 160, thereby eliminating the need for the auxiliary discharge space 60 of the prior art. The spacer 80 having the ionization coupling path 100 that connects the display discharge space 120 to the display discharge space 120 is also not required, which simplifies the configuration and has the effect of making the device larger, higher in definition, and lower in cost.

Furthermore, a resistor 30 is provided for each cathode 20 or anode 140, and the ionization coupling phenomenon with the auxiliary discharge is used.
The display discharge for displaying information is caused by the anode 140□゛
A low voltage (≦200
V) memory function by operating at high speed (≦0.1 μs).

This has the effect of achieving high brightness and high efficiency display.

\, Incidentally, the operation method is not limited to the above, and for example, the operation method is
An auxiliary discharge is generated between the auxiliary anode 70 and the anode 4o using the ionization coupling phenomenon with the auxiliary discharge, and a display discharge is generated between the auxiliary anode 70 and the anode 4o. The resistor 30 may be omitted in the case of 3.

[Brief explanation of drawings]

Hoho □ - Fig. 1 is an exploded perspective view of the prior art, Fig. 2 is a sectional view of the discharge cell constituting Fig. 1, '□NK,t, and Fig. 3 is the present invention. , 1 PA:5; FIG. 4 is a cross-sectional view of the discharge cell of FIG. 3; FIG. 5 is an exploded perspective view of the display device of the present invention formed with; FIG. A cross-sectional view of the cell is shown. 10... Substrate, 20... Cathode, 30... Resistor, 4
0... Insulating layer, 50... Spacer I, 60... Auxiliary discharge space. 70... Auxiliary anode, 90... Spacer ■, 100...
...Ionization coupling path, 110...Spacer ■, 120...
-Display discharge space, 130...phosphor, 140...anode, 150...face plate, 160...dielectric layer, 21.
・・Cathode bus line, deaf 1 deaf 2nd eye・）゛ Bodhisattva 3rd eye 4th deaf eye

Claims (1)

[Scope of Claims] 1. It has a plurality of anodes, a plurality of auxiliary anodes, and a plurality of cathodes, the anode, the cathode, and the auxiliary anode intersect with each other three-dimensionally, and the auxiliary anode and the cathode A dielectric layer is formed between the cathode and the anode, a display discharge space is formed between the cathode and the anode corresponding to the intersection of the cathode and the anode, and a resistance is provided to the cathode for each display discharge space. A gas discharge type display device characterized by comprising: a gas discharge type display device having a gas discharge type display device provided therein and airtightly sealing the same. 2. A gas discharge type display device according to claim 1, wherein the resistor is provided at the anode. 3. A gas discharge type display device according to claim 1 or 2, characterized in that a phosphor is provided on at least a side wall of the display discharge space.