JPH0724194B2 - Discharge display device - Google Patents

Description

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a discharge display device, and more particularly, to a flat plate type display for externally displaying information by selective emission of discharge cells arranged in a matrix. Plasma equipped with information display
Display device

(Prior Art) Conventionally, a plasma display device has been used as a display device of characters or images in electronic devices and the like. Examples of devices of this type include, for example, Japanese Patent Publication Sho 59
-10525 publication is mentioned. As shown in FIGS. 3 and 4, this conventional device is arranged in such a manner that a plurality of cathode electrodes (ends are not yet separated) 5 and a plurality of cathode electrodes 5 are orthogonal to the cathode electrodes. An insulating spacer 3 having a small hole for forming a discharge cell is sandwiched between the plurality of anode electrodes 6 at the intersection of the anode electrode 6 and the cathode electrode 5, and the insulating spacer 3 is further attached to the wind glass 2 and the base glass 4.
It is sandwiched between, and the circumference is sealed with a high vacuum, and the inside is Ne.
It was configured to replace with a rare gas such as. In this discharge cell, a display cell that uses discharge for display to the outside,
There is a scanning cell for helping the discharge start of the display cell, and by discharging the discharge of this scanning cell one after another, the discharge of the display cell is discharged without delay,
The display does not flicker. That is, DC
The plasma display apparatus does not start discharge immediately even if a voltage is applied between the anode electrode and the cathode electrode.
The time until the start of discharge depends on the state of ionization in the discharge cell, and normally, fluctuation of heat due to temperature and
Although the gas is ionized to some extent by the light from the outside, the ionization is not sufficient to immediately discharge by applying a voltage. Therefore, if the gas is not ionized and activated by some means, the gas is not immediately discharged even when the display voltage is applied, and a discharge delay occurs, which causes flickering. In order to eliminate this discharge delay, preliminary discharge is performed by a scanning cell to obtain ionized gas. The scanning cell is hidden so that it cannot be seen from the outside.

(Problems to be Solved by the Invention) However, in the apparatus having the above-mentioned configuration, a plurality of parts are mechanically combined as shown in FIGS. Has a lot of trouble and time. In particular, the insulating spacer 3
Since thin glass with a thickness of about 200μ to 300μ was processed by etching from both sides, both material cost and processing cost were high, and it was fragile and required sufficient consideration in its handling and management.

An object of the present invention is to eliminate the above-mentioned problems, to provide a high-quality discharge display device which is easy to manufacture and is inexpensive.

(Means for Solving Problems) In the present invention, in order to solve the above problems, an anode electrode and a cathode electrode are arranged in a matrix and are installed at respective intersections of the anode electrode and the cathode electrode. A discharge display device for performing display in a discharge cell, comprising a cathode electrode provided on a base glass and a base portion including a first partition wall provided so as to intersect with the cathode electrode, and provided on a lower surface of the wind glass. An anode electrode for the display cell, a black mask provided on the lower surface of the window glass in parallel with the anode electrode for the display cell, and a scanning provided on the lower surface of the black mask so as to be hidden by the black mask. Intersect the anode electrode for the cell, the anode electrode for the display cell, and the anode electrode for the scanning cell. An upper surface portion including a second partition wall provided in such a manner is provided, and the base portion and the upper surface portion are combined so that the first partition wall and the second partition wall intersect.

(Operation) According to the present invention, when a high voltage is applied between the desired cathode electrode 12 and the anode electrode 17 for the display cell, discharge is performed and information is displayed. In this case, the preliminary discharge is performed between the scanning cell anode electrode 17 'and the cathode electrode 12 so that the discharge is not delayed. This preliminary discharge is hidden by the black mask 16.

Further, the anode electrode 17 and the cathode electrode 12 are formed orthogonal to the respective partition walls 13 and 18, and the respective partition walls 13 and 18 are formed.
Since they are combined so as to be orthogonal to each other, since the partition walls 13 and 18 are orthogonal to each other between the scanning cell and the two discharge cells located around the scanning cell, a gap is formed. The influence of the preliminary discharge by the cell anode electrode 17 'can be quickly and accurately transmitted to the two discharge cells located around the scanning cell.

Further, since the regions of the two discharge cells are clearly shown by the barrier ribs, the display range of the adjacent discharge cells becomes clear.

Further, an anode electrode 17 for a display cell is provided on the lower surface of the window glass 15, and a black mask provided on the lower surface of the window glass 15 in parallel with the anode electrode 17 for the display cell.
16 and the anode electrode 17 'for the scanning cell provided on the lower surface of the black mask 16 so as to be hidden by the black mask 16, the anode electrode 17 for the display cell and the scanning electrode 17' are provided. By applying the same voltage to any of the cell anode electrodes 17 ', it is possible to easily and directly perform the discharge.

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

FIG. 1 is a partially cutaway perspective view of a discharge display device according to the present invention,
FIG. 2 is a partial cross sectional view thereof. In the figure, 11 is a base glass, 12 is a cathode electrode provided on the base glass 11, 13 is a first partition wall provided orthogonal to the cathode electrode 12, 15 is wind glass, and 16 is a predetermined lower surface of the wind glass 15. , 17 is a display cell anode electrode provided on the lower surface of the window glass 15, 17 'is a scanning cell anode electrode provided on the black mask, and 18 is orthogonal to the anode electrodes 17 and 17'. The second barrier rib 19 for forming the discharge cell is a seal glass.

As shown in these figures, a plurality of cathode electrodes 12 are formed on the base glass 11 by, for example, thick film printing, and are orthogonal to the cathode electrodes 12 thereon, and the cathode electrodes 12 are separated into respective discharge cells. Further, the first partition wall 13 for providing the space 14 for the discharge cell on the cathode electrode 12 is formed by, for example, thick film printing, and this is baked at about 500 ° C. to form the base portion A. On the other hand, on the lower surface of the window glass 15, a black mask 16 for hiding the scanning line for discharging the scanning cell is formed by, for example, thick film printing,
An anode electrode 17 'for the scanning cell is formed on the black mask 16. Further, although the anode electrode 17 for the display cell is formed on the lower surface of the window glass 15, it may be provided on the end portion of the black mask 16. Further, a second partition 18 that is orthogonal to the anode electrodes 17 and 17 'and is for forming a discharge cell is formed by, for example, thick film printing, and this is baked at about 500 ° C. to form the upper surface portion B. .

Therefore, the cathode electrode 12 of the base portion A and the anode electrodes 17 and 17 'of the upper surface portion B are combined so as to be orthogonal to each other, and the periphery of this assembly is sealed in a high vacuum with a seal glass 19.
The inside is replaced with a rare gas such as Ne to obtain a discharge display device.

The anode electrode 17 is an anode electrode for a display cell, the anode electrode 17 'is an anode electrode for scanning, and the anode electrode 17' is a scanning cell.
14 'is discharged, but this discharge is not used for display but for ionizing gas to eliminate the discharge delay of the display cell.Therefore, the discharge in the scanning cell 14' should not be displayed externally. Not preferable. Therefore, the black mask 16 is provided so as to cover the scanning cell 14 '. The black mask 16 can be easily formed on the lower surface of the wind glass 15 by printing.

Further, the anode electrode 17 and the cathode electrode 12 are formed orthogonal to the respective partition walls 13 and 18, and the respective partition walls 13 and 18 are formed.
Since they are combined so as to be orthogonal to each other, the partition walls 13 and 18 are orthogonal to each other between the scanning cell and the two discharge cells located around the scanning cell, thereby forming a gap.

Therefore, the influence of the preliminary discharge by the scanning cell anode electrode 17 'can be transmitted to the two discharge cells located around the scanning cell.

Further, since the regions of the two discharge cells are clearly shown by the barrier ribs, the display range of the adjacent discharge cells can be made clear.

Here, the dimensions of each part in this embodiment are exemplified as follows.

Line width of cathode electrode 12 ... 500μ Thickness of cathode electrode 12 ... 20μ Thickness of first partition 13 ... 100μ Line width of anode electrodes 17 and 17 '... 100μ Thickness of anode electrodes 17 and 17' ... 20μ Second partition 18 It was confirmed that under these conditions, high voltage could be sufficiently driven at 170 V and flicker-free display could be performed under these conditions.

(Effects of the Invention) As described in detail above, according to the present invention, in the discharge cells arranged at each intersection of the anode electrode and the cathode electrode, the anode electrode and the cathode electrode are arranged in a matrix. A discharge display device for displaying, comprising a cathode electrode provided on a base glass and a base portion including a first partition provided so as to intersect with the cathode electrode, and a display cell provided on a lower surface of the wind glass. Anode electrode, a black mask provided on the lower surface of the window glass in parallel with the display cell anode electrode, and a scanning cell provided on the lower surface of the black mask so as to be concealed by the black mask. Provided so as to intersect the anode electrode, the anode electrode for the display cell, and the anode electrode for the scanning cell. An upper surface portion formed of a second partition wall is provided, and the base portion and the upper surface portion are combined so that the first partition wall and the second partition wall intersect with each other. It is possible to provide a high-quality discharge display device that is easy to manufacture and has a high yield, unlike a device that forms a discharge display device by combining parts.

In particular, in place of the insulating spacer which is expensive and difficult to handle as in the conventional device, in the present invention, the function of the insulating spacer and the function of forming the discharge cell in the first partition wall and the second partition wall are provided. Also, since the partition walls can be combined by simply crossing them, the manufacturing is extremely easy and the cost can be reduced.

Further, since the anode electrode and the cathode electrode are formed so as to be orthogonal to the respective barrier ribs and the respective barrier ribs are combined so as to be orthogonal to each other, the space between the scanning cell and the two discharge cells located around the scanning cell is formed. Since the partition walls are orthogonal to each other to form a gap, the influence of the preliminary discharge by the scanning cell anode electrode can be transmitted to the two discharge cells located around the scanning cell. Further, since the regions of the two discharge cells are clearly shown by the barrier ribs, the display range of the adjacent discharge cells becomes clear.

Further, on the lower surface of the wind glass, an anode electrode for the display cell, a black mask provided on the lower surface of the wind glass in parallel with the anode electrode for the display cell, and the black mask so as to be hidden by the black mask. Since the anode electrode for the scanning cell provided on the lower surface of the black mask is provided, by applying the same voltage to both the anode electrode for the display cell and the anode electrode for the scanning cell, Direct discharge can be easily performed, and it is not necessary to apply a pulse having a voltage different from the voltage applied to the anode electrode for the display cell to the anode electrode for the scanning cell, and the cost can be reduced accordingly. be able to.

Further, the formation of electrodes and the formation of partition walls in the present invention is mainly performed by using a printing technique, but recent printing techniques have advanced,
The cost is reduced, and it is clear that the present invention utilizing these techniques has many advantages over the conventional techniques, and the effect of the present invention is remarkable.

[Brief description 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 cross-sectional view of a discharge display device according to the present invention, FIG. 3 is an exploded perspective view of a conventional discharge display device, and FIG. 4 is a cross-sectional view of a conventional discharge display device. A: Base part, 11 ... Base glass, 12 ... Cathode electrode, 13 ... First partition wall, B ... Top part, 15 ... Wind glass, 16 ... Black mask, 17, 17 '... Anode electrode, 18 ... Second partition, 19 ... Seal glass.

Claims (1)

[Claims] 1. A discharge display device in which an anode electrode and a cathode electrode are arranged in a matrix, and a display is performed by a discharge cell installed at each intersection of the anode electrode and the cathode electrode. A cathode electrode provided, and a first electrode provided so as to intersect with the cathode electrode
A base portion composed of the partition walls, a display cell anode electrode provided on the lower surface of the window glass, a black mask provided on the lower surface of the wind glass parallel to the display cell anode electrode, and the black mask. From the anode electrode for the scanning cell provided on the lower surface of the black mask so as to be hidden, and the second partition wall provided so as to intersect with the anode electrode for the display cell and the anode electrode for the scanning cell. The discharge display device is characterized in that the upper surface portion is formed, and the base portion and the upper surface portion are combined so that the first partition wall and the second partition wall intersect.