JPS6220223A - Gas discharge display device - Google Patents

Abstract

PURPOSE:To obtain a high quality display panel easily mounted and without misregistration by providing a base glass constructing the base part and anode electrodes, insulating spacers, and cathode electrodes crossing the anode electrodes which are constructed sequentially on the said base glass. CONSTITUTION:The linear anode electrodes 22 are constructed on the base glass 21 by printing, and on which the insulating spacers 23 provided with the window 24 to expose the anode electrode to the glass space are constructed by printing. Then the cathode electrodes 25 are constructed on the insulating spacers 23 by printing so as to be perpendicular to the anode electrodes 22. Thereby the display panel of high brightness easily mounted and without misregistration and ununiformity of the brightness can be obtained.

Description

DETAILED DESCRIPTION OF THE INVENTION (Industrial Application Field) The present invention relates to a gas discharge display device, and particularly to a flat panel type gas discharge display device that displays information to the outside by selectively emitting light from discharge cells arranged in a matrix. The present invention relates to a plasma display device including an information display unit.

(Prior Art) Plasma display devices have been used as text or image display devices in electronic devices and the like. For example, Japanese Patent Laid-Open No. 58
-30038 publication is mentioned. As shown in FIGS. 3 and 4, this conventional device has an upper surface portion A having a plurality of anode electrodes 3 on the lower surface of the window glass 1, and a plurality of trigger electrodes 9 on the base glass 2. An insulating layer 8 is printed on the insulating layer 8, and a plurality of cathode electrodes 4 are arranged on the insulating layer 8 along the trigger electrode 9. The cathode electrodes 4 are separated into respective discharge cells. The anode electrode 3 and the cathode electrode 4 are tied together in a perpendicular manner, and the surroundings of the combination are placed in a high vacuum. It is sealed and the inside is replaced with a rare gas such as Ne. In this display device, information is displayed externally by selecting the anode electrode 3 and the cathode electrode 4 and applying a voltage to cause a discharge between the selected electrodes. G from intermediate potential
The trigger electrode 9 is connected in synchronization with the ND (ground) level.
By raising the voltage to a high voltage to cause a small preliminary discharge and activating the rare gas, the discharge delay of the display cell is eliminated and stable display can be performed.

Further, this type of device is shown in, for example, Japanese Patent Laid-Open No. 1-101595 filed by the same applicant. This device is shown in FIGS. 5 and 6. A plurality of grooves for accommodating a plurality of anode electrodes 12, 12□, .

Moreover, the plurality of cathode electrodes 14, 14□... are placed on the base glass 11, and the anode electrodes 121, 12□...1
211 to form a matrix. On the other hand, the window glass 15 has hidden cells 13.
', 13□' ... 13, 1', respectively, a plurality of grooves are formed, and these grooves correspond to the display cells 13 and 1.
3□...13. , constitutes.

That is, a discharge cell is formed by the display cells 13, 13□...1311 and the non-display cells 13,', 13□'...13□', is provided so as to cross the middle part of the discharge cell and separate them.The discharge cell is sealed after being replaced with a rare gas such as Nl1.The discharge display device configured in this way is As is generally known, a voltage is applied to a selected cathode electrode and an anode electrode, and a display is performed by emitting light from a cell at the selected intersection point.

(Problems to be Solved by the Invention) The conventional devices shown in FIGS. 3 and 4 have disadvantages when applied to display devices with a fine dot pitch. That is, since the anode electrode 3 on the lower surface of the window glass 1 covers the discharge cell, the actual display area of the discharge dots is narrowed, and the discharge dots appear small from the outside, making it difficult to display the display using the display surface effectively. I can't do it,
Further, there was a problem in that brightness unevenness occurred on the display surface.

Furthermore, since the anode electrode 3 is provided on the upper surface part A and the cathode electrode 4 is provided on the base part B, and the -F surface part A and the base part B are mechanically combined, it is easy for them to be misaligned (high quality It was difficult to obtain a display surface.

Furthermore, the conventional devices shown in FIGS. 5 and 6 have disadvantages, especially when applied to large-sized display devices. That is, the cathode electrode is sandwiched between the base glass and the window glass, which causes a problem of misalignment during assembly. Furthermore, it has been difficult to combine the grooves provided in the base glass and the grooves provided in the window glass so that they match accurately.

The present invention eliminates the above problems, is easy to assemble, does not shift in position, eliminates uneven brightness on the display surface, provides a bright display surface, uniformizes the discharge conditions of each discharge cell, and stabilizes the discharge voltage. The purpose of the present invention is to provide a gas discharge display device capable of displaying high quality images.

(Means for Solving the Problems) In order to solve the above problems, the present invention provides an anode electrode and a cathode electrode arranged in a matrix, and a discharge electrode installed at each intersection of the anode electrode and the cathode electrode. In a discharge display device that performs display using cells, an anode electrode is provided on a base glass, the electrodes are formed so as to intersect with each other via insulating spacers, and all discharge elements are assembled at the base. By covering this base portion with wind gas, a gas discharge display device can be assembled.

(Function) According to the present invention, the discharge cell emits light at the base, and there is nothing on the light-emitting surface to block the light-emission, making it possible to obtain a bright light-emitting display. Further, with advances in printing technology and the like, the base portion can be formed accurately, the discharge conditions of each discharge cell can be made uniform, and the discharge voltage can be stabilized.

(Example) Hereinafter, an example of the present invention will be described in detail with reference to the drawings.

FIG. 1 is a partially exploded perspective view of a discharge display device showing a first embodiment of the present invention, and FIG. 2 is a partial sectional view of the same discharge display device.

As shown in these figures, a plurality of linear anode electrodes 22 are formed on a base glass 21 by printing.

Next, an insulating spacer 23 having a window 24 for exposing the anno-1ξ electrode 22 to the gas space is formed thereon by printing. Next, a cathode electrode 25 is formed on the insulating spacer by printing so as to be orthogonal to the anode electrode 22. At this time, the discharge cell anode electrodes 26 corresponding to each discharge cell connected to the anode electrode 22 are also printed at the same time.

In this case, the discharge cell anode electrode 26 is arranged by printing so as to be flush with the cathode electrode 25 on the insulating spacer 23. Thereafter, partition walls 27 are formed by printing in order to separate each discharge cell and provide a space for the discharge cells in the cathode electrode -F.
Bake to harden at about ℃. Thereafter, the base glass 21 and the window gas 27 are combined, the surroundings are sealed with a sealing glass 28, and the inside is replaced with rare gas N8 or the like.

Therefore, since a difference in brightness is generated by changing the current flowing through the discharge cells, the display is performed by utilizing this difference in brightness, or by providing a separate trigger electrode to cause a preliminary discharge to stabilize the display. It can also be done.

Note that the discharge cell anode electrode 26 does not necessarily have to be printed at the same time as the cathode electrode, and may be printed twice.

By printing in this way, the window can be precisely formed during printing, and only the necessary parts are exposed to the gas space, so that the discharge can occur precisely. Furthermore, in this embodiment, the anode electrode and the cathode electrode on the insulating spacer are provided on the same plane, so there is no variation in the discharge voltage in each discharge cell, and it is easy to stabilize the discharge voltage. There are advantages such as

Next, a second example will be described.

FIG. 7 is a partial perspective view of a discharge display device showing a second embodiment;
FIG. 8 is a partial sectional view of the same discharge display device.

As shown in these figures, a plurality of anode electrodes 22 and trigger electrodes 30 are formed on a base gas 21 by printing.

Next, an insulating spacer 23 having a window 24 for exposing the anode electrode 22 to the gas space is formed on these holes by printing.

Next, a cathode electrode 25 is formed on the insulating spacer 23 by printing so as to be perpendicular to the anode electrode 22 .

The subsequent formation of each discharge cell and the filling of the rare gas are the same as those of the first embodiment, and the explanation thereof will be omitted.

With this configuration, the cathode electrodes 25 set at an intermediate potential are brought to the GND (ground) level one after another, and in synchronization, the anode electrode 22, which is also set at an intermediate potential, is brought to a high voltage in accordance with the dot to be displayed. However,
In synchronization with the cathode electrode 25 going to GND and becoming a bell, the trigger electrode 30 is raised to a high voltage to cause a preliminary discharge to help start discharge in the display cell, thereby making it possible to perform stable display.

The insulating spacer 23 covers the trigger electrode 30 so that it is not exposed to the gas space, and a window is formed so that the anode electrode 22 is exposed to the gas space. As described above, in this embodiment, the insulating spacer 23 is configured to have both the function of an insulating member between the anode electrode and the cathode electrode and the function of a dielectric member for causing the trigger electrode to perform the triggering action.

Next, a third example will be described.

FIG. 9 is a partial perspective view of a discharge display device showing a third embodiment, and FIG. 10 is a partial sectional view of the same discharge display device.

As shown in these figures, a trigger electrode 30 is formed on a base glass 21 by printing. Next, a lower insulating spacer 31 is printed on top of this in a planar shape. Next, a plurality of linear anode electrodes 22 are formed on this by printing. Next, an insulating spacer 23 is formed perpendicularly to the anode electrode 22.

Next, a plurality of cathode electrodes 2 are placed on the insulating spacer 23.
form 5.

Note that the subsequent formation of each discharge cell and the filling of the rare gas are the same as those of the first embodiment, and a description thereof will be omitted.

Further, the trigger electrode 30 does not necessarily have to be formed into a single planar sheet, and a plurality of trigger electrodes 30 may be arranged in a linear manner.

With this configuration, the cathode electrodes 30 set at an intermediate potential are brought to the GND level one after another, and in synchronization, the anode electrode 22, which is also set at an intermediate potential, is raised to a high voltage in accordance with the dot to be displayed. Trigger electrode 30 synchronizes with electrode 25 becoming GND level.
is set to a high voltage to cause a preliminary discharge to help the display cells start discharging and to provide stable display.

In this embodiment, particularly in the case of fine dot pitch display on a graphic display panel, efficient and bright display can be achieved.

Next, a fourth example will be described.

1. FIG. 11 is a partially cutaway perspective view of a discharge display device showing a fourth embodiment, and FIG. 12 is a partial sectional view of the same discharge display device.

As shown in these figures, a trigger electrode 22 is formed on a base glass 21 by printing. Next, insulating spacers 23 are formed thereon by printing.

Next, a cathode electrode 25 is formed thereon by printing so as to be perpendicular to the anode electrode 22 . In this case, the anode electrode 22 is formed in a comb shape, and windows 24 are provided in the insulating spacer 23 so that the comb teeth are exposed to the gas space. When formed in this way, the anode electrode can be made as thin as about 60 μm.

Therefore, the display is performed by using the difference in brightness that occurs by changing the current flowing through the discharge cells, or by providing a separate trigger electrode to cause a preliminary discharge, thereby stabilizing the display. Good too.

In any of the above embodiments, the partition wall 27 provided between the base and the window glass usually projects from the base, but may also project from the lower surface of the window glass.

Furthermore, the present invention is not limited to the above embodiments,
Various modifications are possible based on the spirit of the present invention, and these are not excluded from the scope of the present invention.

(Effects of the Invention) As described above in detail, according to the present invention, the anode electrode and the cathode electrode are arranged in a matrix, and the display is performed by the discharge cells installed at each intersection of the anode electrode and the cathode electrode. In a gas discharge display device that performs
A base glass forming a base, an anode electrode formed on the base glass, an insulating spacer formed on the anode electrode, and a cathode electrode formed on the insulating spacer and intersecting the anode electrode. (1) Assembly is extremely easy, and there is no possibility of misalignment of the discharge cells as in the conventional case.

(2) A bright display surface can be obtained without uneven brightness on the display surface as in the conventional case.

(3) The discharge conditions of each discharge cell can be made uniform;
The discharge voltage can be stabilized.

Thus, the present invention has various advantages, and the effects brought about by it are significant.

[Brief explanation of drawings]

FIG. 1 is a partially cutaway perspective view of a discharge display device according to the present invention;
FIG. 2 is a partial sectional view of the same discharge display device, FIG. 3 is a partially cutaway perspective view of the conventional discharge display device, and FIG. 4 is the IV of FIG.
-IV' line sectional view, FIG. 5 is a partially broken perspective view of another conventional discharge display device, FIG. 6 is a cross-sectional view of the same discharge display device,
FIG. 7 is a partially cutaway perspective view of a discharge display device showing a second embodiment of the present invention, FIG. 8 is a partial cross-sectional view of the same discharge display device,
FIG. 9 is a partially cutaway perspective view of a discharge display device showing a third embodiment of the present invention, FIG. 10 is a partial cross-sectional view of the same discharge display device, and FIG. 11 is a discharge display device showing a fourth embodiment of the present invention. FIG. 12 is a partially cutaway perspective view of the display device, and FIG. 12 is a partially sectional view of the same discharge display device. 21... Base glass, 22... Anode electrode, 2
3... Insulating spacer, 24... Window, 25... Cathode electrode, 26... Discharge cell anode electrode part, 27...
... Partition wall, 28 ... Wind glass, 29 ... Seal glass, 30 ... Trigger electrode, 31 ... Lower insulating spacer.

Claims (6)

[Claims] (1) In a gas discharge display device in which an anode electrode and a cathode electrode are arranged in a matrix and display is performed by discharge cells installed at each intersection of the anode electrode and the cathode electrode, (a) a base forming a base; (b) an anode electrode formed on the base glass; (c) an insulating spacer formed on the anode electrode; (d) an insulating spacer formed on the insulating spacer and intersecting the anode electrode. A gas discharge display device characterized by comprising a cathode electrode. (2) The gas discharge display device according to claim 1, wherein a window is formed in the insulating spacer, and the anode electrode of the discharge cell portion is exposed through the window. (3) The gas discharge display device according to claim 1, wherein the surface of the anode electrode of the discharge cell portion formed in the window is disposed on the same plane as the surface of the cathode electrode. (4) The gas discharge display device according to claim 1, wherein the anode electrode is formed in a comb shape, and teeth of the comb are exposed through the window. (5) The gas discharge display device according to claim 1, wherein a trigger electrode is formed between the insulating spacer and the base glass. (6) The gas discharge display device according to claim 1, wherein a trigger electrode and a lower insulating spacer are formed between the anode electrode and the base glass.