JP3350360B2 - DC gas discharge display - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a gas discharge display device, and more particularly to a DC gas discharge display device driven by a pulse memory.

[0002]

2. Description of the Related Art Generally, reference 1 (Reference 1: Technical Report of the Institute of Television Engineers of Japan, ITE Technical Repo)
rt Vol. 17, No. 71 pp. See pages 37-42. ), In a conventional direct current gas discharge display device driven by a pulse memory (hereinafter sometimes referred to as a DC type PDP or simply as a panel), a resistor is provided for each display cell and each auxiliary cell. It is known that the discharge current is limited by the above method to extend the life of the device (a panel having such a structure is referred to as a panel with a resistor). Further, in a panel obtained by improving this panel with a resistor, for example, a panel disclosed in Document 2 (Japanese Patent Application Laid-Open No. 08-124488), a strip-shaped wiring anode, a strip-shaped resistor, and a discharge anode are provided via an insulating layer. The resistor was formed in a three-dimensional configuration, and the length of the resistor was formed longer than that of the previous panel. Further, the material for forming the connection electrode portion was smaller than the resistor in specific resistance, and the discharge anode, the discharge auxiliary anode, and the first and second connection electrode portions were simultaneously formed.
This panel has a sufficiently low discharge current, prolongs its life, and reduces variations in the resistance of each cell. Can be made uniform.

[0003]

SUMMARY OF THE INVENTION
According to the structure of the C-type PDP, the resistor is longer than the previous resistor, so that the discharge current can be sufficiently suppressed and the life can be sufficiently extended. The resistance is a combination of the resistance of the resistor and the resistance of the connection electrode portion. However, since the material for forming the first and second connection electrode portions has a smaller specific resistance than that of the resistor, the resistance in the connection electrode portion is small. The variation in the resistance value is so small that it can be ignored, and the variation in the resistance value for each cell is reduced. Further, since the discharge anode, the discharge auxiliary anode, and the first and second connection electrode portions are all formed at the same time, the length of the resistor becomes uniform, and the variation in the resistance value can be further reduced.

However, depending on the structure of the DC type PDP,
Since the discharge characteristics are different due to the difference in the size of the discharge space between the display cell and the auxiliary cell, it may be necessary to provide resistors having different resistance values to the display cell and the auxiliary cell. However, the first resistor of the display cell and the second resistor of the auxiliary cell
If the shape or size of the resistor is changed, that is, if the pattern is made thicker in order to lower the resistance value of any one of the resistors, high definition may not be possible. When different resistors are formed by the thick film printing method, the amounts of the resistor paste to be applied are different, so that there is a possibility that the resistors having different shapes affect each other and the resistors cannot be stably applied.

[0005]

According to the present invention, a cathode common to a display cell and an auxiliary cell, a discharge anode, a wiring anode, and a first connection electrode portion connected to the wiring anode are provided. A first resistor connected between the discharge anode and the first connection electrode, and a discharge current from the wiring anode to the cathode via the first connection electrode, the first resistor and the discharge anode. To discharge the above-mentioned display cell. Further, a discharge auxiliary anode, a wiring auxiliary anode, a second connection electrode portion connected to the wiring auxiliary anode, and a gap between the discharge auxiliary anode and the second connection electrode portion. A second resistor connected to the auxiliary cell, and an auxiliary discharge current flows from the wiring auxiliary anode to the cathode via the second connection electrode portion, the second resistor and the discharge auxiliary anode to discharge the auxiliary cell. In the gas discharge display device configured in (1), the first resistor and When the discharge space of the auxiliary cell is smaller than that of the display cell and the auxiliary discharge current does not easily flow in the auxiliary cell when the same material is used to form the two-resistor, the two-resistor and the discharge auxiliary anode on the wiring insulating layer are It is characterized in that the second interval between the two connection electrodes is made smaller than the first interval between the discharge anode and the first connection electrode.

[0006] With this configuration, the resistance length of the second resistor sandwiched between the discharge auxiliary anode and the second connection electrode portion (referred to as the second resistance length), that is, the second resistor existing in the second interval. Is the resistance length of the first resistor sandwiched between the discharge anode and the first connection electrode portion (referred to as first resistance length), that is, the length of the portion of the resistor existing during the first interval. Shorter than that. Therefore, the distance through which the auxiliary discharge current flows in the second interval is reduced, and the current limiting effect of the second resistor during that time is reduced, so that the substantial resistance value can be reduced. In the auxiliary cell having a decreased resistance value, the discharge current value increases.

In addition, when the auxiliary cell and the display cell have the same discharge space by increasing the definition of the display cell, or when the speed of transmitting the potential to the display cell is increased by increasing the driving frequency, the wiring insulating layer It is preferable that the first distance between the discharge anode and the first connection electrode is smaller than the second distance between the discharge auxiliary anode and the second connection electrode. With this configuration, the resistance value of the display cell can be lower than that of the auxiliary cell, and the discharge current value can be increased.

In the above-described gas discharge display device, when display cells each having a red, blue and green phosphor are separately provided as display cells, four display cells adjacent to each other vertically and horizontally are provided. When you look at the 4
One display cell is painted in a color that is not adjacent to each other, but two of the cells are configured in the same color. For example, the two cells are green display cells, and the remaining two cells are red display cells and blue display cells, respectively. Discharge anodes corresponding to red, blue and green display cells are provided. When the first intervals between the first connection electrodes are the first intervals for red, blue, and green, respectively, the first interval for red and the first interval for blue are preferably smaller than the first interval for green. It is. With such a configuration, the resistance values of the red display cell and the blue display cell can be reduced, and the discharge current value can be increased. When four display cells are simultaneously lit and displayed, red, blue, The luminance balance of the three green colors is improved, and white display with good chromaticity can be performed.

In addition, since the first resistor and the second resistor are formed of the same material at the same time, a resistor having a stable shape can be provided without increasing a new process for changing a resistance value. Can be provided.

[0010]

Embodiments of the present invention will be described below with reference to the drawings. The drawings are schematically shown to the extent that the invention can be understood, and hatching or the like showing a cross section is omitted except for a part. In the following description, specific materials and conditions are used, but these materials and conditions are only one of preferred examples, and therefore, the present invention is not limited thereto.

(First Embodiment) A main structure of a DC PDP will be briefly described with reference to FIGS. 1, 2, 3, 4 and 5, and an electrode will be described with reference to FIG. The relationship between the distance and the resistance value will be described, and then, an example of reducing the resistance value on the auxiliary cell side according to an embodiment of the present invention will be described. FIG. 1 is a schematic plan view showing a partial structure of a DC type PDP of the present invention, which is partially cut away. 2 (A), 3 (A) and 4 (A) are partial plan views of a part of the structure in the middle of forming the structure on the rear substrate as viewed from above. (B), FIG. 3 (B), and FIG. 4 (B) are views showing cutaways of cross sections taken along line XX in each of FIG.
5A is a cross-sectional view of a main part of the present invention. FIG. 5A shows a path through which a discharge current flows in a display cell, and FIG. 5B shows a path through which an auxiliary discharge current flows through an auxiliary cell.
FIG. 9 is a characteristic curve diagram showing the relationship between the inter-electrode distance and the resistance value.

In FIG. 1, two rows of strip-shaped wiring anodes 13 and two strip-shaped wiring auxiliary anodes 15 are repeatedly arranged in parallel on a back substrate 11 in the order of one row. A plurality of rows of strip-shaped cathodes 19 are arranged in parallel on the front substrate 17. The rear substrate 11 and the front substrate 17 are opposed to each other and are bonded to each other with lead glass or the like with a gap for filling discharge gas. A plurality of display cells 23 separated by the partition walls 21 in the gap, and the display cells 23 adjacent to each other between the display cells 23 (with the wiring auxiliary anode 15 interposed therebetween).
Between the display cells 2).
The auxiliary cell 25 is disposed at a position adjacent to the auxiliary cell 3. In addition, a priming slit 27 that spatially communicates the display cell 23 and the auxiliary cell 25 adjacent to each other with the partition 21 interposed therebetween is provided in the partition 21.

The configuration on the rear substrate 11 according to the present invention among the panels configured as described above will be further described. As already described, in FIG.
On one, two rows of strip-shaped wiring anodes 13 and two strip-shaped wiring auxiliary anodes 15 are repeatedly arranged in parallel in the order of one row.
In the drawing, one wiring anode is shown as a first wiring anode 13a and the other is shown as a second wiring anode 13b. A wiring insulating layer 31 is provided so as to cover the rear substrate 11 on the side where the wiring anodes 13 (13a, 13b) and the wiring auxiliary anode 15 are provided. A discharge anode 33 is provided on the wiring insulating layer 31 at a position where the wiring anode 13 and the cathode 19 intersect. Further, a discharge auxiliary anode 35 is provided at a position between two adjacent discharge anodes 33 such that the wiring auxiliary anode 15 and the cathode 19 intersect. A first through-hole 37 is formed at a position separated from the discharge anode 33 and on the wiring anode 13 so as to penetrate the wiring insulating layer 31.
A second through-hole 39 is provided at a position separated from the wiring auxiliary anode 15 so as to penetrate the wiring insulating layer 31. The first through holes 37 correspond to the display cells 23, and the second through holes 39 correspond to the auxiliary cells 25. In FIG. 1, these first through holes 37 and second through holes 39 are formed. This is indicated by a dotted circle.

In this embodiment, the back substrate 1
1 when viewed from above (front substrate 17 side),
The through holes 39 are preferably formed so as to be aligned on a straight line. As will be clear from the description below,
The first through-hole 37 provided in the vicinity of the discharge anode 33 in the arbitrary display cell 23 is connected to the arbitrary display cell 2.
3. It has an association with another display cell 23 adjacent to 3. The second through hole 39 provided in the vicinity of the auxiliary anode 35 in any of the auxiliary cells 25 is similarly associated with another auxiliary cell 25 adjacent to the arbitrary auxiliary cell 25.
In this case, the term “adjacent” means that the wiring anode 13 and the wiring auxiliary anode 15 are sequentially adjacent to each other in the extending direction.

The first connection electrode portion 41 is buried so as to fill the first and second through holes 37 and 39.
And a second connection electrode portion 43 are formed.
Then, the discharge anode 33 and the first connection electrode portion 41 are connected by a first resistor 45, and similarly, the discharge auxiliary anode 35 and the second connection electrode portion 43 are connected by a second resistor 47. As will be apparent from the following description, the first and second connection electrode portions close to the discharge anode 33 and the discharge auxiliary anode 35 correspond to the adjacent cells. Here, the first resistor 45 is provided between the first connection electrode portion 41 of the two first connection electrode portions provided on the wiring anode 13 and on both sides of the discharge anode 33, which is farther from the discharge anode 33.
And the corresponding discharge anode 33. Therefore, the discharge anode 33 belonging to a certain display cell 23 is electrically connected to the first connection electrode portion 41 provided below the adjacent display cell 23 by the first resistor 45.

Similarly, the second resistor 47 is provided on the wiring auxiliary anode 15 and on both sides of the discharge auxiliary anode 35, the second second connection electrode portion which is farther from the discharge auxiliary anode 35. 1 connection electrode section 43 and corresponding discharge auxiliary anode 35
Are provided so as to be connected. Therefore, the discharge auxiliary anode 35 provided beside a certain display cell 23 is
Second connection electrode portion 43 provided beside the next display cell
Are electrically connected to each other by the second resistor 47. The wiring anode 13 and the first resistor 45 and the wiring auxiliary anode 15
The second resistor 47 is electrically connected to the second resistor 47 by a first connection electrode 41 and a second connection electrode 43, respectively. Then, the first and second resistors and the first and second resistors
The wiring insulating layer 31 including the connection electrode portion and the discharge anode 33 is covered with the resistor insulating layer 49. At the positions corresponding to the discharge anode 33 and the discharge auxiliary anode 35 of the resistor insulating layer 49, the third surfaces of the upper surfaces of the discharge anode 33 and the discharge auxiliary anode 35 are respectively exposed so that at least the central portion through which the discharge current passes is exposed. A through hole 51 and a fourth through hole 53 are formed for each display cell 23 and each auxiliary cell 25.

Here, the first connection electrode portion 41 and the second
Connection electrode part 43, discharge anode 33, and discharge auxiliary anode 3
Reference numeral 5 indicates that the first resistor 45 and the second resistor 47 are formed of the same material at the same time by the thick film printing method, the sand blast method, the embedding method, or the like.
Further, at least the film thicknesses of the discharge anode 33, the discharge auxiliary anode 35, the first connection electrode portion 41, and the second connection electrode portion 43 on the wiring insulating layer 31 are equal, and when the rear substrate 11 is viewed from above. Are also equal in width.

In the above-described configuration example, the area of the display cell 23 is made larger than that of the auxiliary cell 25 in order to obtain high brightness in the display cell of the PDP. In this auxiliary cell 25, since the discharge space is smaller than that of the display cell 23,
When a discharge current is passed through the cell with the same resistance as the display cell 23,
A discharge current (hereinafter, a discharge current in an auxiliary cell is referred to as an auxiliary discharge current) becomes difficult to flow.

Therefore, according to the present invention, the auxiliary cell 25
In order to make the resistance value of the second connection electrode section 43 and the discharge auxiliary anode 35 on the wiring insulating layer 31 extend in the direction in which the second connection electrode section Interval between 43 and discharge auxiliary anode 35 (second interval)
H is the distance between the first connection electrode portion 41 and the discharge anode 33 (first
The gap is arbitrarily and preferably increased only in a direction in which the distance is smaller than D (FIGS. 2A and 2B). Here, FIG.
In the configuration example shown in FIG. 5, both the second connection electrode 43 and the discharge auxiliary anode 35 are greatly extended in the extending direction, but as shown in FIGS. It may be greatly extended. In that case, the second connection electrode 4
3 (FIGS. 3 (A) and 3 (B)) and only the size of the discharge auxiliary anode 35 (FIGS. 4 (A) and 4 (B)). Adjust.

As a result, the distance (second distance) through which the auxiliary discharge current flows through the portion of the second resistor, which actually acts as a resistor, between the second intervals H in the area (auxiliary cell area) 63 of the auxiliary cell 25. The resistance length (H) is shorter than the distance (first resistance length) D through which the discharge current flows through a part of the first resistor between the first intervals D in the area (display cell area) 61 of the display cell 23. (FIGS. 5A and 5B), the current limiting effect of the resistance decreases, that is, the resistance value in the auxiliary cell 25 decreases. Therefore, a sufficient auxiliary discharge current can be supplied to the auxiliary cell. A bent straight line with an arrow in FIG. 4 indicates a path through which the discharge current and the auxiliary discharge current flow. Also, the first resistance length D and the first interval D
Have the same length, they are represented by the same symbol D, and the second resistance length H and the second interval H are similarly represented by the same symbol H.

FIG. 9 shows a distance (first interval) D between the discharge anode and the first connection electrode portion and a distance (second interval) H (here, the second interval) between the discharge auxiliary anode and the second connection electrode portion. First interval D
The second interval H is collectively referred to as an inter-electrode distance. FIG. 4 is a characteristic curve diagram for explaining the relationship between the resistance values. In this figure, the horizontal axis represents the distance between the electrodes (μm), and the vertical axis represents the resistance value (kΩ). Curve A shows the case where the distance between the electrodes is shortened by increasing the size of both the first or second connection electrode portion and the discharge anode or discharge auxiliary anode in the extending direction, and curve B shows the first or second connection electrode portion.
This shows a case where the size of one of the connection electrode portion and one of the discharge anode and the discharge auxiliary anode is greatly extended to reduce the distance between the electrodes.

According to this measurement example, the distance between the electrodes is 100
The resistance was 250 for curves A and B when μm was used.
They are about kΩ and 300 kΩ. 200 between electrodes
If μm, the respective resistance values are around 400 kΩ, and if the distance between the electrodes is further increased to 350 kΩ, the respective resistance values are approximately 730 kΩ and 790 kΩ. As can be understood from the curves A and B, it can be seen that there is no great difference between the resistance values regardless of how the distance between the electrodes is increased.

From this experimental result, it is considered that the present invention is effective if the second interval H is 200 (μm) or more.
However, since the first distance D between the first connection electrode portion 41 and the discharge anode 33 is set to 350 (μm) conventionally,
The interval H is preferably set to a shorter value of 200 to less than 350 (μm). The reason why the lower limit value is set to 200 (μm) is that if the thickness is 200 (μm) or more, high definition can be achieved, and the longer the width of the second resistor 47, the easier it is to control the resistance value. In addition, the first interval D and the second interval H
The optimum range common to both is 200 to 400 (μm), and the upper limit is set to 400 (μm) because the display cell 2
3 and the auxiliary cell 25 have a resistance value within 1000 kΩ and a preferable discharge current flows therethrough. Thus, the first
In consideration of the set value of the interval D, the above-described 200 to 400 are set so that the resistance value of the auxiliary cell is smaller than that of the display cell within a range not exceeding the set value.
It is preferable to set the second interval H to a suitable value within (μm).

Second Embodiment Next, as a second embodiment, in the DC type PDP having the structure described in the first embodiment, display cells are respectively set to red, blue, and blue.
An example in which green phosphors are separately applied will be described with reference to FIG. FIG. 6A shows four display cells 23 which are vertically and horizontally adjacent to each other with the auxiliary cell 25 interposed therebetween and defined by partition walls 21.
Is simply shown. FIG. 6B is a plan view showing the configuration up to the point where the structure on the substrate is formed (until the resistor is formed) as viewed from above. The hatching (hatched lines) shown in the figure is used to clearly show the structure.

When the four display cells 23 of FIG. 6A are simultaneously lit and displayed, when adjusting the luminance so that the luminance balance of the three colors (red, blue, and green) is improved, four pixels are used. The display cells are painted in colors that are not adjacent to each other. For example, a red phosphor is applied to the upper left cell of FIG. 6A, a blue phosphor is applied to the lower right cell, and a green phosphor is applied to the lower left and upper right cells. Assuming that the display cell 23a, the blue display cell 23c, and the green display cells 23b and 23d are the green display cell 2
Since there are two 3b and 23d, the other two display cells,
The luminance balance is higher than that of the red display cell 23a and the blue display cell 23c. Therefore, the first interval between the red and blue display cells 23a and 23c (the first interval for red and blue) is reduced to reduce the resistance value, and the green display cell 2
It is necessary to increase the luminance until the balance with 3b and 23d is improved. Referring now to FIG. 6B, a display cell area corresponding to the red display cell 23a in FIG. 6A is shown as a red display cell area 61a surrounded by a dotted line in FIG. The display cell areas corresponding to the display cell 23c and the green display cells 23b and 23d are a blue display cell area 61b and green display cell areas 61b and 6 respectively.
1d. The first interval (first interval for red) of the red display cell area 61a is set to D _A , and the blue display cell area 61 is set to D _A.
c, green display cell area 61b, first the first distance D _C for spacing the respective blue 61d, the first distance D _B for green, and D _D.

The first distance D _A for red and the first distance D _C for blue are used.
Is to increase the size of both the first connection electrode portion 41 and the discharge anode 33 on the wiring insulating layer 31 in the extending direction, as in the case of shortening the second interval H of the first embodiment. , Or by increasing the size of either one of the first green spaces D _B and D _D, which are shorter than the first green spaces D _B and D _D.
An interval is formed (FIG. 6B). As a result, the resistance values of the red and blue display cells 23a and 23c decrease, the discharge current value increases, and the luminance can be increased. Therefore, when the above four display cells 23 are simultaneously lit and displayed, the luminance balance of the three colors (red, blue, and green) is improved, and white display with good chromaticity can be performed.

(Third Embodiment) As a third embodiment, in a DC type PDP whose main steps and structure are almost the same as those of the first embodiment, the high definition of the display cell 23 is realized. When the auxiliary cell 25 and the display cell 23 have the same discharge space, or when the speed of transmitting the potential to the display cell 23 is increased by increasing the driving frequency, the resistance of the display cell 23 is increased. The case where the resistance value needs to be smaller than the cell 25 will be described with reference to FIGS. FIGS. 7A, 8A, and 8B are plan views showing the configuration of a part of the structure on the substrate (until the resistor is formed) as viewed from above. In addition,
The hatching (oblique lines) in the figure is used to clearly show the structure. FIG. 7 (B) shows Y in FIG. 7 (A).
It is an incision sectional view cut along the -Y line. The cross-sectional view of FIG. 8 is omitted.

In this example, the steps for constructing the structure on the rear substrate are the same as those in the first embodiment, and will not be described here. The difference is that the resistance value of the display cell 23 needs to be smaller than the resistance value of the auxiliary cell 25. Therefore, the first connection electrode portion 4 on the wiring insulating layer
1 and the length of the discharge anode 33 in the extending direction, the distance (first distance) D between the first connection electrode part 41 and the discharge anode 33, the distance (second distance) between the second connection electrode part 43 and the discharge auxiliary anode 35. (2 intervals) It is arbitrarily and preferably increased only in a direction narrower than H (FIGS. 7A and 7B). Here, FIG.
Although the size of the first connection electrode 41 and the discharge anode 33 in the extending direction is increased, as shown in FIGS. 8A and 8B, one of the sizes is increased. You may. In that case, only the size of the first connection electrode 41 is increased (FIG. 8A), and only the size of the discharge anode 33 is increased (FIG. 8B), and the first interval D is adjusted. . As a result, the above-described first interval D becomes shorter, so that the resistance value of the first resistor 45 during that period decreases, and the discharge current value increases. Therefore, a sufficient discharge current can flow through the display cell 23. Therefore, the display cell 23 and the auxiliary cell 25
Have the same discharge space, the discharge current value of the display cell 23 can be increased, so that high-luminance display can be performed, and the transmission speed to the display cell 23 can be easily increased even if the driving frequency is increased.

(Fourth Embodiment) Next, as a fourth embodiment, in a DC type PDP in which the resistance value of the display cell 23 described in the third embodiment is reduced,
An example in which the display cells 23 are separately painted with red, blue, and green phosphors will be described. Since it has already been described in the second embodiment, detailed description is omitted. When two of the four display cells 23 are green display cells 23b and 23d,
The display cells 23 whose resistance values need to be reduced are the red and blue display cells 23a and 23c. Therefore, the relationship between the resistance values of the respective cells is that the auxiliary cell 25 is the largest, the green display cells 23b and 23d are next, and the cells with the smallest resistance are the red and blue display cells 23a and 23c. . As a result, when the four display cells 23 are simultaneously lit and displayed, white balance with good chromaticity can be obtained with good luminance balance of three colors (red, blue, and green).

[0030]

As is apparent from the above description, in the DC type gas discharge display device described in Document 2, the first resistor and the second resistor have the same material, size and shape. When the discharge space of the auxiliary cell is smaller than that of the display cell and the auxiliary discharge current does not easily flow in the auxiliary cell, the second interval between the discharge auxiliary anode and the second connection electrode on the wiring insulating layer is set to the distance between the discharge anode and the first connection electrode. It is smaller than the first interval between the connection electrodes. By doing so, the distance through which the auxiliary discharge current flows in the second interval becomes shorter, and the current limiting effect of the second resistor during that time becomes smaller, so that the substantial resistance value can be reduced. In the auxiliary cell having a decreased resistance value, the discharge current value increases.

In the case where the auxiliary cell and the display cell have the same discharge space by increasing the definition of the display cell, or the speed of transmitting the potential to the display cell is increased by increasing the driving frequency, the wiring insulating layer The first distance between the discharge anode and the first connection electrode is smaller than the second distance between the discharge auxiliary anode and the second connection electrode. Thereby, the resistance value of the display cell can be lower than that of the auxiliary cell, and the discharge current value can be increased.

In the gas discharge display device as described above, when display cells are provided as display cells in which phosphors are painted in red, blue, and green, respectively, four display cells adjacent to each other vertically and horizontally are provided. When attention is paid, the four display cells are painted in colors that are not adjacent to each other, but two of them are configured with the same color. For example, the two cells are green display cells, and the remaining two cells are red display cells and blue display cells, respectively. Discharge anodes corresponding to red, blue and green display cells are provided. The first intervals between the first connection electrodes are for red,
When the first interval for blue and the first interval for green are used, the first interval for red and the first interval for blue are made smaller than the first interval for green. Thereby, the resistance value of the red display cell and the blue display cell can be reduced and the discharge current value can be increased. When four display cells are simultaneously lit and displayed, the luminance of three colors of red, blue and green is obtained. The balance is improved, and white display with good chromaticity can be displayed.

The first and second resistors have the same shape,
Since the resistors can be formed in the same size and simultaneously, a resistor having a stable shape can be provided without increasing the number of new steps when a resistor having a different resistance value needs to be provided for each cell.

[Brief description of the drawings]

FIG. 1 is a partial plan view for explaining the structure of a DC PDP of the present invention.

FIG. 2A is a partial plan view for explaining a structure according to the invention on the back substrate of the first embodiment, and FIG. 2B is a XX line of FIG. It is sectional drawing cut off by.

FIG. 3A is a partial plan view for explaining a structure according to the invention on the back substrate of the first embodiment, and FIG. 3B is a XX line of FIG. 3A; It is sectional drawing cut off by.

FIG. 4A is a partial plan view used to explain a structure according to the invention on the back substrate of the first embodiment, and FIG. 4B is an XX line of FIG. It is sectional drawing cut off by.

FIGS. 5A and 5B are main-portion cross-sectional views of a DC-type PDP illustrating a path through which a discharge current flows in a display cell and an auxiliary cell according to the first embodiment;

FIG. 6A is a partial schematic view for explaining a structure according to a second embodiment, and FIG. 6B is a partial plan view of a main part;

FIG. 7A is a partial plan view for explaining a structure on a rear substrate according to a third embodiment;
(B) is a sectional view taken along line YY of (A).

FIGS. 8A and 8B are partial plan views for explaining a structure on a rear substrate according to a third embodiment;

FIG. 9 is a characteristic curve diagram for explaining a relationship between a distance between electrodes and a resistance value.

[Explanation of symbols]

 11: Rear substrate 13: Wiring anode 13a: First wiring anode 13b: Second wiring anode 15: Wiring auxiliary anode 17: Front substrate 19: Cathode 21: Partition wall 23: Display cell 23a: Red display cell 23b, 23d: Green Display cell 23c: blue display cell 25: auxiliary cell 27: priming slit 31: wiring insulating layer 33: discharge anode 35: discharge auxiliary anode 37: first through hole 39: second through hole 41: first connection electrode portion 43: second connection electrode portion 45: first resistor 47: second resistor 49: resistor insulating layer 51: third through hole 53: fourth through hole 61: display cell area 61a: red display cell area 61b 61d: green display cell area 61c: blue display cell area 63: auxiliary cell area

Claims (4)

(57) [Claims] A cathode common to the display cell and the auxiliary cell; a discharge anode; a wiring anode; a first connection electrode connected to the wiring anode; A first resistor connecting between the electrodes, and a discharge current is passed from the wiring anode to the cathode via the first connection electrode portion, the first resistor, and the discharge anode to cause the display cell to operate. Discharging is further performed, and a discharge auxiliary anode, a wiring auxiliary anode, a second connection electrode portion connected to the wiring auxiliary anode, and a connection between the discharge auxiliary anode and the second connection electrode portion. A second resistor, and an auxiliary discharge current is supplied from the wiring auxiliary anode to the cathode via the second connection electrode portion, the second resistor and the discharge auxiliary anode to discharge the auxiliary cell. In the gas discharge display device according to the first aspect, the first When the same material is used for forming the antibody and the second resistor, the second distance between the discharge auxiliary anode and the second connection electrode is larger than the first distance between the discharge anode and the first connection electrode. A direct current type gas discharge display device characterized by being narrowed. 2. The direct-current gas discharge display device according to claim 1, wherein, when attention is paid to four display cells adjacent to each other vertically and horizontally across the auxiliary cell, a red display cell is used as the display cell.
When the blue display cell and the green display cell are provided such that the display cells of the same color are not adjacent to each other, two of the four display cells are set to the green display cell, and the remaining display cells are set to the green display cell. When the two display cells are the red and blue display cells, respectively, and the first intervals corresponding to the display cells are the first intervals for red, blue and green, respectively, the first interval for red And a first space for blue and a first space for blue are narrower than the first space for green. 3. A cathode common to a display cell and an auxiliary cell, a discharge anode, a wiring anode, a first connection electrode portion connected to the wiring anode, and a discharge electrode and the first connection electrode portion. A first resistor connecting between the electrodes, and a discharge current is passed from the wiring anode to the cathode via the first connection electrode portion, the first resistor, and the discharge anode to cause the display cell to operate. Discharging is further performed, and a discharge auxiliary anode, a wiring auxiliary anode, a second connection electrode portion connected to the wiring auxiliary anode, and a connection between the discharge auxiliary anode and the second connection electrode portion. A second resistor, and an auxiliary discharge current is supplied from the wiring auxiliary anode to the cathode via the second connection electrode portion, the second resistor and the discharge auxiliary anode to discharge the auxiliary cell. 2. The discharge display device according to claim 1, wherein the first resistor When the same material is used for forming the second resistor, the first distance between the discharge anode and the first connection electrode is smaller than the second distance between the discharge auxiliary anode and the second connection electrode. A DC-type gas discharge display device, comprising: 4. The direct-current gas discharge display device according to claim 3, wherein, when attention is paid to four display cells adjacent to each other vertically and horizontally across the auxiliary cell, a red display cell is used as the display cell.
When the blue display cell and the green display cell are provided such that the display cells of the same color are not adjacent to each other, two of the four display cells are set to the green display cell, and the remaining display cells are set to the green display cell. When the two display cells are the red and blue display cells, respectively, and the first intervals corresponding to the display cells are the first intervals for red, blue and green, respectively, the first interval for red And a first space for blue and a first space for blue are narrower than the first space for green.