JP3190714B2 - DC discharge panel and display device driven by pulse memory - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a DC discharge panel and a display device for driving the DC discharge panel with a pulse memory.

[0002]

2. Description of the Related Art A first conventional example of a color DC discharge type display panel has a structure shown in FIG. (a) is a sectional view thereof, and (b) is a diagram showing a surface plate thereof. Figure F
P, BM, BA, A, Ph, C, D, TH and RP are the front plate (glass), black lattice (black matrix), partition,
Represents anode (indium tin oxide), phosphor, cathode (Ni), dielectric, third electrode and back plate (glass). The details of this panel are described in Publication (1). However, since the XY matrix panel is driven by a single-row (line) simultaneous driving method and flows a relatively large current (about 490 μA), the luminous efficiency is low. It is bad at 0.025lm / W (white), and is not suitable for television receiving panels except for special applications. He (93%)-Kr (5%)-Xe (2%)
0torr is used.

A second conventional example has a structure shown in FIG. 30. In the figure, the same elements as those in FIG. 29 are denoted by the same reference numerals, but other AA, DA, R-Ph , G-Ph, B-Ph, P
S, DC, W and ACE are auxiliary anode, display anode,
Red-phosphor, green-phosphor, blue-phosphor, priming space, display cells, embankments and auxiliary cells,
See Publication (2) for the operation of this panel.

A third conventional example has a structure shown in FIG. 31. In the figure, the same elements as those in FIGS. 29 and 30 are given the same reference numerals. CB, WB, AAL
And DAL are the filter, cathode bus, white background,
It represents an auxiliary anode line and a display anode line, and the description of the reference numerals will be continued. See Publication (3) for details of the third conventional example.

Further, a fourth conventional example of the structure shown in FIG. 32 is (a) a plan view of this panel viewed from the display side, and (b)
Is a cut surface when the panels were cut along the cutting line X ₁ -X ₂ of FIG. (A). The panel having this structure is closest to the configuration of the DC discharge display panel of the present invention to be described below. In the drawing, reference symbols AC, DAB, and R are auxiliary cathodes, respectively.
Represents the indicated anode bus and current limiting resistance, see publications (4) and (5) for details.

The above-described second to fourth prior art examples are each driven by a pulse memory drive system, and the cathodes of these panels are
Ni, Al, is composed of a material such as LaB _6, as the filler gas
He-Xe is used at 1.5 to 5%, and the total gas pressure is used at 200 to 250 torr.

List of Publications (1) Niwa et al .: "17-inch DC Type High-Definition Color Plasma Display", Journal of the Institute of Television Engineers of Japan, Vol.45, No.5 (19
90), pp. 571-577 (2) Murakami et al .: "20-inch color discharge display panel", Technical Report of the Institute of Television Engineers of Japan, ID88-37 (1988.3) (3) Sakai et al .: "Ultra-low reflectivity color display discharge" Panel (I
V) ”, IEICE Technical Report, EID87-72 (19
88.2.5.) (4) JP-A-60-253131 (Japanese Patent Application No. 59-107687) "Gas discharge display panel" (5) Takano et al .: "Pulse memory drive of discharge display panel with resistance", Television Conference Annual Meeting '90, Proceedings 4-3, pp.
77−78

[0008]

In the first conventional example described above, as described in detail in the publication (1), the peak luminance of the image is as low as about 33 cd / m ² and the luminous efficiency is low. Therefore, it is not suitable as a large television image panel.

Although the life of this panel is not described in the publication, it is presumed that the luminance is low and the life is relatively long because the light emission time ratio, which is inversely proportional to the number of rows of the panel, is as small as 1/480. You. Defining the operating time until the luminance becomes 1/2 of the initial luminance is defined as the lifetime.In general, if the luminance is reduced by lowering the luminous time rate, the life will naturally be extended. X Life needs to be measured.

In the second and third conventional examples, the brightness is increased by the memory effect, the peak brightness is estimated to be 50 to 100 cd / m ² , and the actual life is estimated to be 1000 to 2000 hr (hour). Practically, it is said that the life is required to be about 100 cd / m ² × 10000 hr.

It has been found that the biggest factor that determines the life is that the luminance is reduced by the deposition of the cathode material into the cells by sputtering. It has been found that it is important to reduce the discharge current in order to reduce sputtering.In the second and third conventional examples, the discharge sustaining current was kept at about 100 μA, but the life was still short. I understand.

The fourth prior art is an improvement on this point. Since the maintenance current is further reduced by adding a current limiting resistor, the life is doubled but is still insufficient. .

An object of the present invention is to eliminate the above-mentioned drawbacks and to provide a DC discharge panel whose lifetime is as long as 10,000 hours at a luminance of 100 cd / m ² and a display device using the same. is there. Therefore, the inventors of the present application applied for a method of driving a resistance-equipped panel by increasing the pressure of an enclosed gas with a He-Xe-based gas in the specification of Japanese Patent Application No. 3-202135 previously filed. After that, further experiments were conducted, and similar effects were found with other gases.

[0014]

In order to achieve the above-mentioned object, a DC discharge panel according to the present invention comprises a front plate and a back plate, and forms discharge cells in a matrix by spacers or partition walls. In a DC-type discharge panel having a phosphor screen that emits a predetermined emission color in each cell and a discharge current limiting element for limiting a discharge current of each discharge cell, Ne gas, Xe gas, and Kr gas as filling gas are used. Occupies at least 95% of the total gas pressure,
X is the partial pressure ratio of the Xe gas to the total gas pressure, k is the partial pressure ratio of the Kr gas to the total gas pressure, and p tor is the total gas pressure.
When r, 0.01 ≦ x ≦ 0.5, 0 ≦ k ≦ 0.5, p ≦ 50
0 is satisfied, and

## EQU4 ## The configuration is such that the condition of max ｛80xk (1-3.3x), 1｝ xp ⁵ ≧ 8.0 × 10 ⁹ is satisfied. In the above, the formula max ｛80xk (1-3.3x),
1｝ means that the larger value of 80xk (1-3.3x) and 1 is used.

A display device of the present invention for driving a DC discharge panel according to the present invention with a pulse memory includes a front plate and a back plate, and forms discharge cells in a matrix by spacers or partition walls. In a display device that drives a pulse discharge memory of a DC discharge panel including a phosphor screen that emits a predetermined emission color and a discharge current limiting element for limiting a discharge current of each discharge cell, Ne as an enclosed gas of the panel is used. The sum of the partial pressure ratios of gas, Xe gas and Kr gas occupies at least 95% of the total filled gas pressure, x represents the partial pressure ratio of Xe gas to the total filled gas pressure, and k represents the partial pressure ratio of Kr gas to the total filled gas pressure. When the total gas pressure is p torr, the conditions of 0.01 ≦ x ≦ 0.5, 0 ≦ k ≦ 0.5, p ≦ 500 are satisfied, and the effective cathode area per discharge cell of the discharge display panel is Sm. m ² , and the discharge sustaining current per discharge cell is I μA,

[Mathematical formula-see original document] The present invention is characterized in that the condition that maxx80xk (1-3.3x), 1｝ xp ⁵ (S / I) ³ ≧ 2.4 is satisfied.

A display device of the present invention for driving a DC discharge panel according to the present invention with a pulse memory has a front plate and a back plate, and forms discharge cells in a matrix by spacers or partition walls. In a display device for driving a DC discharge panel including a phosphor screen that emits a predetermined emission color and a discharge current limiting element for limiting a discharge current of each discharge cell by pulse memory, a He gas as a sealing gas for the panel is used. The sum of the partial pressure ratios of gas, Xe gas and Kr gas occupies at least 95% of the total filled gas pressure, x represents the partial pressure ratio of Xe gas to the total filled gas pressure, and k represents the partial pressure ratio of Kr gas to the total filled gas pressure. When the total gas pressure is p torr, the conditions of 0.01 ≦ x ≦ 0.5, 0 <k ≦ 0.5, and p ≦ 600 are satisfied, and the effective cathode area per discharge cell of the discharge display panel is Sm. m ² , and the discharge sustaining current per discharge cell is I μA,

６1 + 700 × k ² / (p / 200) ⁴ ｝ xp ⁵ (S / I) ² ≧ 6.3 × 10 ^{4 The} condition is satisfied.

[0017]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, the present invention will be described in detail with reference to the accompanying drawings by way of embodiments. Prior to this, the history of the present inventors reaching the present invention will be described in detail. That is, the inventors of the present application have considered the life factor of the pulse memory operation in more detail, and confirmed this in several basic experiments. The experiment was performed using the panel shown in FIG. (a) is a plan view of this panel, a cross-sectional view in (b) is X ₁ -X ₂ cut surface.

The cathode material of this panel is Al, Ni, BaAl ₄
Others were used. For the cathode C, use part of the bus CB directly or
The cathode material was attached or formed on the CB. A white glass material was used for the cell barrier BA and the white background WB. Phosphor Ph is red: (YGd) BO ₃ : Eu, green: Zn ₂ SiO ₄ : Mn, blue: BaM
g Al ₁₄ O ₂₃ : Eu was paste-printed and used.
As a result of various experiments, the present inventors were able to confirm the following facts.

(1) The life of the pulse memory at the time of sustain pulse operation is the same as that at the time of constant current drive, considering the operation time rate D, if the current is the same as that at the time of constant current drive. Of course, the life when driven at a constant current is also a value obtained by dividing the life when D = 1 by the actual value of D.

(2) As shown in FIG.
It can be approximated by p (−bt) + c. Where b and c are constants and t
Is the operating time. In the case of FIG. 4, Al cathode, Ne-Xe 10%,
This is a time-dependent deterioration characteristic due to a total discharge gas pressure of 150 torr, a constant current I of 150 μA, and DC discharge.

(3) When the operating current increases, the life T
Becomes shorter. For example, it was also found that when the light emission time ratio was 1 and I = 100 μA, T = 100 hr, whereas when I = 300 μA, T = 2 hr.

(4) The service life when operated at several different current values could also be estimated. This is because, as the pulse memory, a method of life can be evaluated when a write current I ₁ and the sustain pulse current I ₂ in size both different time rates. This can be summarized as follows. The two characteristic curves are similar and the life at the current value I ₁ is T ₁ , and the life at I ₂ is T ₂ ,
Assuming that the respective operation time rates are D ₁ and D ₂ , the life T when they are mixed is

T = (D ₁ / T ₁ + D ₂ / T ₂ ) ⁻¹ (1) For example, for pulse memory I ₁ =
_{300 μA, T 1 = 2hr,} D 1 = 1/2000, I 2 = 100 μA, T 2 =
Assuming that 100 hr, D ₂ = 1/60, the life when writing only is T ₁ / D ₁ = 4000 hr, and the life when maintaining only is T ₂ / D ₂ = 60.
Although it is 00 hr, the lifetime T when actually mixed is 2400 hr, which is a very small time rate, but it has been revealed that the lifetime is shortened by a large current at the time of writing.
From these facts, it was found that, in the fourth conventional example, the write current was reduced and the life was extended.
However, the service life is still insufficient, and the present invention has solved this problem for the first time.

The limiting conditions according to the present invention were confirmed by changing the gas composition in a panel having substantially the same configuration as that of the fourth conventional example. For example, 250 torr of Ne-Xe 10% gas
It was found that the lifespan was dramatically increased by encapsulation.
This is shown in FIG. The panel used for the measurement is shown in FIG. From Figure 5 the pressure is only 10 to 200 torr
It was found that the life was nearly doubled just by increasing the percentage and exceeded 10,000 hours. The brightness is within this range (150-300t
orr) was almost constant at 40 cd / m ² .

FIG. 6 shows that the data is represented on a logarithmic scale. The life versus pressure characteristics of the filled gas Ne-Xe-Kr and He-Xe-Kr are also shown in FIGS.
Shown in Life from the slope of these curves p ⁵ ~p ⁶ (p
Is substantially proportional to the sealing pressure).

FIG. 9 shows the life vs. Xe partial pressure ratio characteristics of Ne-Xe. Furthermore, in Ne-Xe-Kr and He-Xe-Kr, the life versus Kr partial pressure ratio characteristics with pressure as a parameter are shown in FIG.
Figures 12 and 13 show the Xe partial pressure ratio as a parameter in 0 and 11.
Are shown below. In addition, the inventors of the present invention have taken a lot of data.

FIG. 14 shows the life versus current characteristics of Ne-Xe. Figures 15 and 16 show the efficiency versus current characteristics in Ne-Xe.
The parameters are pressure in FIG. 15 and Xe partial pressure ratio in FIG. FIG. 17 shows the efficiency versus current characteristics of Ne-Xe-Kr with the Kr partial pressure ratio as a parameter. FIGS. 18 and 19 show luminance versus current characteristics in Ne-Xe.
Xe partial pressure ratio. FIGS. 20 and 21 show the sustaining voltage versus current characteristics in Ne-Xe.
Xe partial pressure ratio. FIG. 22 shows a sustain voltage vs. pressure characteristic in Ne-Xe. FIG. 23 shows the minimum discharge sustaining current versus pressure characteristics in Ne-Xe. 24 and 25 show that only the auxiliary discharge cells are discharged in Ne-Xe-Kr, and the brightness of the visible light of Ne is Kr.
And how the relative pressure changes with a change in the partial pressure ratio of Xe. FIG. 26 shows luminance and pressure characteristics of Ne visible light.
FIGS. 24 and 25 show that when Kr is further added at 10% Xe, the visible light emission of Ne decreases. For all of the above measurements,
Hg was not used. The measurement of the gas containing Ne includes the visible light of Ne.

6, 7, 9, 10, 12, and 14, the life T of the Ne—Xe—Kr-based gas when D = 1/60 is equal to that of this panel.

T = max８80 × k (1-3.3 ×), 1｝ 2.7 × 10 ⁻⁷ xp ⁵ (100 / I) ³ [hour] (2) Where x is the partial pressure ratio of Xe,
k is the partial pressure ratio of Kr, p is the total pressure [torr], I is the current value [μ
A]. Table 1 shows a comparison between the actually measured values and Equation (2), which is a relatively good evaluation method. Since this panel is usually stable when used at about 60 μA, it is necessary to obtain T exceeding 10,000 hours.

９80xk (1-3.3x), 1｝ xp ⁵ ≧ 8.0 × 10 ⁹ (3) It is necessary to fill a gas.

[0028]

[Table 1]

8, 11 and 13, the life T of the He-Xe-Kr-based gas when D = 1/60 is

T = ｛1+ 700 × k ² / (p / 200) ⁴ ｝ 7 × 10 ⁻⁸ xp ⁵ (60 / I) ² [hour] (4) Where x is the partial pressure ratio of Xe,
k is the partial pressure ratio of Kr, p is the total pressure [torr], I is the current value [μ
A]. Table 2 shows a comparison between the actually measured values and equation (4), which is a relatively good evaluation method. Since this panel is usually stable when used at about 60 μA, it is necessary to obtain T exceeding 10,000 hours.

１１ 1+ 700xk ² / (p / 200) ⁴ ｝ xp ⁵ ≧ 1.4 × 10 ¹¹ (5) It is necessary to fill a gas.

[0030]

[Table 2]

As for the magnitude of the discharge current, it is necessary to consider a value per unit area of the cathode per discharge cell, and for that purpose, it is necessary to consider an effective cathode area per discharge cell. In the case where the distance from the anode is not constant, as in the cathode of the panel shown in FIG. 3, the place where the normal glow discharge actually operates generally depends on the pd product. In this case, the shortest distance d is 1.2 times. To the point. This is because a slightly higher sustaining voltage of, for example, about 20 V is required to operate the remaining portion as a cathode, so that the discharge at the shortest distance d becomes abnormal glow discharge and spatter increases rapidly. This can be seen from FIGS. 6 and 20. In the case of the panel of FIG. 3, as shown in FIG. 27, it is about 2/3 of the total cathode area. In this figure, the anode is one point and dm
= 1.2d, the effective cathode area S per discharge cell is

(Equation 12) In this panel, S = 0.04 mm ² .

Now that the effective area S of the cathode per discharge cell has been defined, the current density I / S (I is the discharge sustaining current per discharge cell) is calculated, and in Ne-Xe-Kr, (2) If you modify the formula,

T = max ｛80xk (1-3.3x), 1｝ 4.2 × 10 ³ xp ⁵ (S / I) ³ (6) In He-Xe-Kr, when equation (4) is modified,

T = ｛1+ 700 × k ² / (p / 200) ⁴ ｝ 0.16 × p ⁵ (S / I) ² (7)

For the upper limit of the total pressure, the atmospheric pressure (760 torr
r), but if the life is sufficient, the lower the better, the more stable the minimum sustaining current increases as the pressure p increases, as shown in Fig. 23. The maximum value is 500torr for Ne-Xe-Kr system,
For He-Xe-Kr system, it is set to 600torr. In addition, x ≦ 0.5 and k ≦ 0.5 from the stability of discharge. Regarding the discharge distance d,
pd product is 1-10 (torrcm) for He-Xe-Kr system, Ne-X
For e-Kr system, it should be selected from 0.5 to 10 (torr · cm).

The writing at the time of driving the memory of the panel is as follows.
The voltage must be increased by several tens of volts, for example, 50 volts, than the sustain voltage. However, as shown in FIG. 20, such a write voltage causes a large current to flow, and the life is shortened. Therefore, it is necessary to insert some kind of current limiting element in series. Usually, since a resistor is used, it is necessary to attach it as shown in FIG. 32, for example.

From the above, the resistance in the panel is:
For the Ne-Xe-Kr system, (a) max ｛80xk (1-3.3x), 1｝ xp
⁵ ) Memory drive method for gas filled gas of 8.0 × 10 ⁹ and (b) Request for panel and memory drive method with max ｛80xk (1-3.3x), 1｝ xp ⁵ (S / I) ³ ≧ 2.4 A range is obtained. For the He-Xe-Kr system, (c) ｛1 + 700xk ² / (p / 200) ⁴ ｝
xp ⁵ ≧ 1.4 × 10 ¹¹ Gas-filled memory drive method and (d) ｛1 + 700xk ² / (p / 200) ⁴ ｝ xp ⁵ (S / I) ² ≧ 6.3
A panel of × 10 ⁴ and a claim of a memory driving method can be obtained.

FIG. 28 shows the range when the condition (a) consists only of Ne-Xe. Even if a small amount of rare gas, He or Ar of 5% or less is added in addition to Ne-Xe-Kr, characteristics that are not much different are obtained.

Although the above description has been made with reference to the case where Al is used as the cathode material, it has been found that almost the same effect can be obtained with other materials.

When the material is Ni, as it is, the life is shorter than that of Al.
Since it can be extended to about 0 times, the life is longer than that of Al.

As other materials, BaAl ₄ , LaB ₆ , BaB ₆
Such as boride, Ba (N ₃ ) ₂ , alkali metal, Y ₂ O ₃ , ZnO, RuO
₂ , Cr, Co, graphite, Ca _0.2 La _0.8 CrO ₃ , Mg, BaLa ₂ O
₄ , BaAl ₂ O ₄ and LaCrO ₃ have almost the same effect. The attachment method is applied by a method such as printing, plasma spraying, vapor deposition, and sputtering.

The phosphor is usually Y ₂ O ₃ : Eu, Y for red.
VO ₃ : Eu, YP _0.65 V _0.35 O ₄ : Eu, YBO ₃ : Eu, (YGa) BO ₃ :
Eu, for green use Zn ₂ SiO ₄ : Mn, BaMg ₂ Al ₁₄ O ₂₄ : Eu.Mn,
BaAl ₁₂ O ₁₉ : Mn, for blue Y ₂ SiO ₄ : Ce, YP _0.85 V
_{0.15 O 4: Eu, BaMg 2} Al 14 O 24: Eu, BaMgAl 14 O 23: Eu is used. Adhesion printing, photo etching method, adhesive method,
By spray method. Depending on the location where the phosphor is attached, it is called a reflection type (back panel or cell wall) or a transmission type (front panel). The position of the resistance must be changed accordingly. When a fluorescent substance is attached to the front panel, a reflection type has a greater degree of freedom because a place for attaching a resistance is limited.

The filter for increasing the contrast can be incorporated in the panel as described in detail in the technical report on television technology ED-993 (November 13, 1986).

The resistor-attached panel may be one shown in Documents 4 and 5, but FIG. 1 shows another example. This cell structure is characterized in that a front plate FG is provided with a resistor R, and the rest is substantially the same as FIG.

FIG. 2 shows another example in which only the write electrode has a resistance. There is a cathode on the front panel, a writing anode bus (WAB) runs on the rear panel in the vertical direction,
From there, it is connected to the write anode (WA) via a resistor (R). On the other hand, the display anode (DA) protrudes from the bus (DAB) to the center of the cell. DAB is parallel to C, but may be parallel to WAB. Since the sustain discharge is performed between DAB and C, either may be used. In this case, it can be driven only in the pulse memory mode.

The panel with a resistor includes (1) a place where a resistor is provided,
Front plate or back plate, (2) Electrodes to be attached, anode side, cathode side, or write electrode only, (3) Classification by combination of presence or absence of auxiliary discharge, corresponding to each of the above two examples And other examples are considered as well. Further, when used together with the resistive panel described in the inventions (Kawasawa, Sakai, Motoyama) filed almost simultaneously, a much better panel can be obtained.

There are two types of driving of the panel with the resistor, that is, a DC memory mode and a pulse memory driving method, but it can be used in both modes.

Although the embodiments of the present invention have been described in detail above, it is obvious that the present invention is not limited to these embodiments, and that various modifications and changes can be made within the scope of the claims. Will.

[0047]

As described in detail in the embodiments of the present invention, the use of the DC discharge panel of the present invention and the display device according to the present invention for driving the pulse discharge memory of the present invention greatly increases the life of the DC discharge panel. It can be expected to expand practically.

Further, in a configuration in which only the write electrode has a resistance as in the panel shown in FIG. 2, there is an advantage that even if there is some variation in the resistance, luminance unevenness does not occur.
Further, in the configuration in which the cathode and the display anode bus are parallel, the power consumption of the sustain pulse is small.

[Brief description of the drawings]

1 (a) is a plan view of a panel with resistance according to the present invention viewed from the display side, and FIG. 1 (b) is a cut surface X ₁ -X _{2 of} FIG. ₁ (a).
FIG.

FIG. 2 (a) is a plan view of another embodiment of the resistance-equipped panel according to the present invention as viewed from the display side, and FIG. 2 (b) is a sectional view of FIG. 2 (a).
A cross sectional view taken along X ₁ -X _2.

FIG. 3A is a plan view of a panel configuration used in an experiment for the present invention viewed from the display side, and FIG. 3B is a cut plane X _{1 in} FIG.
A cross sectional view taken along -X _2.

FIG. 4 shows a temporal change in luminance due to DC discharge when the experimental panel shown in FIG. 3 is used.

FIG. 5 shows life versus pressure characteristics for quantitatively explaining the effect of the present invention.

FIG. 6 shows life versus pressure characteristics for quantitatively explaining the effect of the present invention.

FIG. 7 shows life versus pressure characteristics for quantitatively explaining the effect of the present invention.

FIG. 8 shows life versus pressure characteristics for quantitatively explaining the effect of the present invention.

FIG. 9 is a graph showing life versus time for quantitatively explaining the effect of the present invention.
The Xe partial pressure ratio characteristics are shown.

FIG. 10 shows life versus Kr partial pressure ratio characteristics for quantitatively explaining the effect of the present invention.

FIG. 11 shows life versus Kr partial pressure ratio characteristics for quantitatively explaining the effect of the present invention.

FIG. 12 shows life versus Kr partial pressure ratio characteristics for quantitatively explaining the effect of the present invention.

FIG. 13 shows life versus Kr partial pressure ratio characteristics for quantitatively explaining the effect of the present invention.

FIG. 14 shows life versus current characteristics for quantitatively explaining the effect of the present invention.

FIG. 15 shows luminous efficiency versus current characteristics according to the present invention.

FIG. 16 shows luminous efficiency versus current characteristics according to the present invention.

FIG. 17 shows luminous efficiency versus current characteristics according to the present invention.

FIG. 18 shows a light emission output luminance vs. current characteristic according to the present invention.

FIG. 19 shows a light emission output luminance versus current characteristic according to the present invention.

FIG. 20 shows a sustain voltage versus current characteristic according to the present invention.

FIG. 21 shows a sustain voltage-current characteristic according to the present invention.

FIG. 22 shows a sustain voltage versus pressure characteristic according to the present invention.

FIG. 23 shows a stable minimum discharge sustaining current versus pressure characteristic according to the present invention.

FIG. 24 shows luminance versus Kr partial pressure ratio characteristics of an auxiliary discharge cell according to the present invention.

FIG. 25 shows luminance versus Xe partial pressure ratio characteristics of an auxiliary discharge cell according to the present invention.

FIG. 26 shows luminance versus pressure characteristics of an auxiliary discharge cell according to the present invention.

FIG. 27 is a view for explaining a cathode effective area of the discharge display panel according to the present invention.

FIG. 28 shows the range of the pressure to Xe partial pressure ratio when I = 60 μA and S = 0.04 mm ^{2 according to} the present invention.

29 (a) is a cross-sectional view of a first conventional example of a discharge display panel, and FIG. 29 (b) is a plan view as viewed from the display side.

FIG. 30 shows a configuration of a second conventional example of a discharge display panel.

FIG. 31 shows a configuration of a third conventional discharge display panel.

[Figure 32 (a) is a plan view as viewed from the display side of the fourth conventional example of discharge display panel, (b) is a sectional view of the cutting plane X ₁ -X ₂ of the (a) diagram.

[Explanation of symbols]

 FP Front plate RP Back plate BM Black lattice BA Partition DCE Display cell ACE Auxiliary cell A Anode DA Display anode DAB Display anode bus DAL Display anode wire AA Auxiliary anode AAL Auxiliary anode wire C Cathode AC Auxiliary cathode CB Cathode bus DC display cathode Ph Fluorescent Body W Embankment WB White back WW White wall material R Resistance D Dielectric TH Third electrode PS Priming space WA Write anode WAB Write anode bus

────────────────────────────────────────────────── ─── Continuation of the front page (56) References JP-A-3-127431 (JP, A) JP-A-60-253131 (JP, A) Niwa Akio, 5 others, “17-inch DC type high-definition color Plasma Display ", Journal of the Institute of Television Engineers of Japan, 1990, Vol. 45, No. 5, p. 571-577 (58) Field surveyed (Int. Cl. ⁷ , DB name) H01J 17/20 H01J 17/06 G09G 3/282

Claims (3)

(57) [Claims] 1. A discharge panel comprising a front plate and a back plate, wherein discharge cells are formed in a matrix by spacers or partitions, and a discharge screen for emitting a predetermined luminescent color to each discharge cell and a discharge current of each discharge cell are limited. In a DC-type discharge panel provided with a discharge current limiting element for
The sum of the partial pressure ratios of gas, Xe gas and Kr gas occupies at least 95% of the total filled gas pressure, x represents the partial pressure ratio of Xe gas to the total filled gas pressure, and k represents the partial pressure ratio of Kr gas to the total filled gas pressure. When the total gas pressure is p torr, 0.01 ≦ x ≦
0.5, 0 ≦ k ≦ 0.5, with p ≦ 500 following condition is satisfied, Equation 1] max {80xk (1-3.3x), 1 } xp 5 ≧ 8.0 × 10 as ⁹ following condition is satisfied configured DC-type discharge panel characterized by being done. 2. A discharge panel comprising a front plate and a rear plate, wherein discharge cells are formed in a matrix by spacers or partition walls, and a discharge screen for emitting a predetermined emission color to each discharge cell and a discharge current of each discharge cell are limited. In a display device for driving a DC discharge panel provided with a discharge current limiting element for performing pulse memory, a Ne gas, Xe
The sum of the partial pressure ratios of the gas and the Kr gas occupies at least 95% of the total charged gas pressure, the partial pressure ratio of the Xe gas to the total charged gas pressure is x, the partial pressure ratio of the Kr gas to the total charged gas pressure is k, and the total charged gas is When the pressure is p torr, 0.01 ≦ x ≦ 0.5, 0
≦ k ≦ 0.5 and p ≦ 500 are satisfied, and
Further, the effective area of the cathode per discharge cell of the discharge display panel is Smm ² , and the sustaining current per discharge cell is IμA.
Where the following condition is satisfied: max ｛80xk (1-3.3x), 1｝ xp ⁵ (S / I) ³ ≧ 2.4
A display device that drives a DC discharge panel with a pulse memory . 3. A discharge panel comprising a front plate and a rear plate, wherein discharge cells are formed in a matrix by spacers or partition walls, and a fluorescent screen which emits a predetermined emission color to each discharge cell and a discharge current of each discharge cell are limited. In a display device for driving a DC discharge panel provided with a discharge current limiting element for performing pulse memory, a He gas, Xe
The sum of the partial pressure ratios of the gas and the Kr gas occupies at least 95% of the total charged gas pressure, the partial pressure ratio of the Xe gas to the total charged gas pressure is x, the partial pressure ratio of the Kr gas to the total charged gas pressure is k, and the total charged gas is When the pressure is p torr, 0.01 ≦ x ≦ 0.5, 0
<K ≦ 0.5 and p ≦ 600 are satisfied, and
Further, the effective area of the cathode per discharge cell of the discharge display panel is Smm ² , and the sustaining current per discharge cell is IμA.
Where 【1 + 700xk ² / (p / 200) ⁴ ｝ xp ⁵ (S / I) ² ≧ 6.3 × 10 ⁴
A display device that drives a DC discharge panel with a pulse memory .