JPS59154729A - Gas discharge type display device - Google Patents

Abstract

PURPOSE:To obtain a bar graph display device which can be manufactured easily and assures high brightness color display by stacking and sealing the first and second substrates respectively providing many parallel electrodes and phosphor material between such electrodes through a discharge space in such a way that respective electrodes are overlapped. CONSTITUTION:The multi-phase wirings 20, 100 of the first and second electrodes 30, 90 are printed and baked on the first and second substrates 10, 80 made of galss, etc. Next, the Ni pasted, etc. is printed and baked in order to form the first and second electrodes 30, 90 respectively. Moreover, an insulating layer on which the glass paste, etc. is printed and baked on such electrodes, except for the operating part of the first and second electrodes 30, 90. The first and second substrates 10, 80 thus constituted are overlapped through an insulator 60 consisting of the glass plate having the discharge space 70 so that the first electrode 30 and second electrode 90 are overlapped and the circumference thereof is baked using a glass flit so that it becomes resistive to a high vacuum condition.

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Application of the Invention] The present invention relates to a gas discharge type display device, and particularly to a color high-brightness, high-definition bar graph gas discharge type display device suitable for analog (bar-shaped) display.

[Prior art]

FIG. 1 shows an exploded perspective view of a conventional analog display gas discharge type bar graph panel. A large number of first electrodes 30 parallel to each other are provided on the first substrate 1°, and these first electrodes 3
0 is a three-phase connection 20 on the first substrate 10. On the other hand, on the inner surface of the second substrate 80, a transparent second electrode 9o made of tin or the like and a one-phase connection 100 are provided, and a black film 110 is provided on a portion other than the display section. A spacer 60 having a discharge space 70 connects the first substrate 1° and the second substrate 80.
They are stacked on top of each other through the wafer, and the surrounding area is sealed to withstand high vacuum.

In a panel configured in this way, (1) color display is not possible; (2) when the first electrode 30 is connected to the three-phase connection 20, a through hole 50 is provided in the insulating layer 40, and a multi-phase (3) The second electrode 90 is required to be transparent, so it is necessary to use thin film technology. There were problems such as compatibility and the need for complex process technology.

[Purpose of the invention]

SUMMARY OF THE INVENTION An object of the present invention is to solve the above-mentioned problems of the prior art and to provide a gas discharge type display device capable of color display and high brightness.

[Summary of the invention]

As shown in the exploded perspective view of FIG.
The first electrode 3o on the second substrate 80 is connected in a multi-phase (for example, two-phase) connection 20, and a phosphor 130 for color display is provided between the first electrodes 30, while the second electrode 9o on the second substrate 80 is The present invention is characterized in that the problems of the prior art are solved by making a multi-phase (for example, two-phase) connection.The number of phases is not limited to two phases.

[Embodiments of the invention]

Hereinafter, embodiments of the present invention will be described in detail using FIG. 2. On a first substrate lo made of glass or the like, a multi-phase (for example, two-phase) connection 2o of the first electrode 30 is printed and fired with Au-paste, etc. Then, the first electrode 30 is formed.Furthermore, an insulating layer 4o formed by printing and baking glass paste or the like is provided on this, except for the moving parts of the first electrode 30.Next, the first electrode 30 is
In between, a phosphor 130 for color display is provided using a simple printing method. On the other hand, on the inner surface of the second substrate 8o made of transparent glass or the like, a film 110 is formed by printing and firing a black glass paste or the like, except for the display part 120, in order to increase the contrast of the display. Next, Au-
Multi-phase (for example, two-phase) second electrode 9o using paste etc.
Print and fire all 100 wire connections (3 or more phases are also possible). next,
The second electrode 9o is formed by printing and firing Ni-paste or the like. Further, on this, an insulating layer (not shown) is formed by printing and baking glass paste or the like, except for the display section 120 and the movable section of the second electrode 90.

Next, the second substrate on the left of the first substrate configured in this way is
The first electrode 30 and the second electrode 9o are overlapped with each other with an insulator 60 made of a glass plate or the like having a discharge space 7o interposed therebetween, and the surrounding area is baked using a glass frit or the like to withstand high vacuum.

The panels made in this way are placed under high vacuum (~1o-7To
After heating (for example, 400 r for 3 hours) to
-(e+10 to 50 mixtures or single rare gases such as
Select from a range of 0 Torr and encapsulate to form a panel.

FIGS. 3A and 3B are cross-sectional views showing other embodiments of the present invention. FIG. 3(a) shows that the thickness of the insulating layer 40 in the embodiment of FIG. 2 is made thicker, and the phosphor 1.
30, which reduces the adhesion of sputtered material to the surface. FIG. 3(b) shows a first electrode 3 on an insulating layer 40.
By forming 0, a step is provided between the surface of the phosphor 130 and the surface of the first electrode 300, thereby further reducing the adhesion resistance of the sputtered material.

Next, the basic lKfi method shown in FIG. 4(a) and the panel shown in FIG. 2 using → will be briefly explained. FIG. 4(1) shows the first electrode 30 as a cathode (Kl, K2
°...Km), and the second electrode 90 is an anode (Ax, A2
, . . . An) (the reverse case is also possible, of course). At one end of the second electrode 90 (or the first electrode 30), there are provided a reset electrode R that determines the repetition of discharge, and a pair of key-alive electrodes KP for facilitating the generation of discharge. Anode terminals Aφ1 and Aφ2, cathode terminal j (φ1 and φ2
, a pulse voltage having a time-series pulse width t and amplitudes VK, VA, and Va as shown in FIG. 4(b) is applied to the reset electrode terminal BT. When such a pulse voltage is applied to each terminal, the reset discharge p1 generated between the electrodes (1% - K 1 ) is sequentially (AI K2 ), (
A2 K3).

(A3 K4)...discharge between pz+ p3t
l) Transferred as 4... (equipped with self-scanning function),
Displayed in a bar shape.

In this way, when the anode and cathode are used diagonally, the entire surface of the phosphor can be effectively excited with the vacuum ultraviolet rays generated by the discharge, and the light emitting surface can be viewed directly (reflective structure).
, high brightness characteristics can be obtained. Furthermore, the discharge path length (
According to the present invention, the thickness of the insulator 6o is the same, but the distance between the cathode and the anode is also 1 compared to the conventional case where they are vertically opposed.
/cosθ times (θ indicates the angle formed by the viewing plane and a line segment connecting the cathode and the anode that operate diagonally.) Therefore, if the length of the discharge path is constant, the thickness of the insulator 60 can be made thinner by a factor of cos θ in the present invention. For example, θ=
When the angle is 60°, the thickness can be reduced to 1/2 compared to the conventional one. This has the great advantage of not only making it easier to process the insulator, but also improving the directional characteristics of the display.

〔Effect of the invention〕

As described above, according to the present invention, the panel is manufactured using thick film technology, and the anode is divided into individual parts and operated diagonally with the cathode. A color bar graph display device can be realized.

[Brief explanation of drawings]

FIG. 1 is an exploded perspective view of a conventional display panel, FIG. 2 is an exploded perspective view of one embodiment of the present invention, and FIGS. 3 (A) and (B) are cross sections showing another embodiment of the present invention. 4A and 4B are diagrams for explaining a method for driving a display device according to the present invention. DESCRIPTION OF SYMBOLS 10... First board, 20... First electrode connection, 30...
...first electrode, 70...discharge space, 80...second substrate, 90...second electrode, 100...second electrode connection,
120...Table 2, Figure 3

Claims (1)

[Claims] A first substrate having at least a large number of first electrodes parallel to each other, a phosphor provided between the first electrodes, and a multiphase connection of the first electrodes, a large number of second electrodes parallel to each other, and the second electrode. a second board having at least a multiphase connection of
A gas discharge type display device characterized in that the first electrode and the second electrode are stacked and sealed so as to overlap with each other with a discharge space in between.