WO2008032408A1

WO2008032408A1 - Plasma display panel

Info

Publication number: WO2008032408A1
Application number: PCT/JP2006/318412
Authority: WO
Inventors: Kazushige Takagi; Yoshiho Seo; Hajime Inoue; Tadayoshi Kosaka; Koichi Sakita
Original assignee: Hitachi Plasma Display Limited
Priority date: 2006-09-15
Filing date: 2006-09-15
Publication date: 2008-03-20
Also published as: JPWO2008032408A1

Abstract

Irregular strong discharge is prevented to occur when a feeble reset discharge is caused between display electrodes by applying a voltage increasing/decreasing with time between the display electrodes of a plasma display panel. The plasma display panel comprises mutually opposed front and rear substrates (11, 21). A partition (29) defining a unit light-emitting region is provided on the rear substrate. Pairs of display electrodes (X, Y) each spaced by a discharge slit (47) for surface discharge are arranged with spaces which are nondischarge regions (49) on the front substrate. The pairs of discharge electrodes are covered with a dielectric layer (17). In each nondischarge region of the dielectric layer has a conductive particle containing part (45). Wall discharge accumulated on the surfaces of the nondischarge regions of the dielectric layer and causing strong discharge leaks through the conductive particle containing parts to the display electrodes and is removed.

Description

Specification

Plasma display panel

Technical field

[0001] The present invention relates to a plasma display panel.

Background art

FIG. 11 is an exploded perspective view of a general surface discharge type plasma display panel (hereinafter referred to as “PDP”) 10 and shows a basic structure of a portion corresponding to one pixel EG.

[0003] The PDP 10 is a three-electrode structure PDP that is referred to as a reflection type according to the classification according to the arrangement form of the phosphor. The front-side substrate structure on the display surface H side and the rear-side surface opposed to this It consists of a substrate structure. The front side substrate structure consists of a front side substrate 11 made of a glass substrate, a pair of display electrodes X and Y for surface discharge extending in the display line direction, a dielectric layer 17 for AC drive, and a protective film with MgO force It is composed of 18 powers. The back side substrate structure includes a back side substrate 21 that also has glass substrate power, stripe-like or grid-like partition walls 29 that divide the discharge space, address electrodes A for selectively emitting light in the unit emission region EU, and for full-color display. The three primary color phosphors 28R, 28G, and 28B are included!

[0004] Each pixel EG of display is composed of three unit light-emitting areas EU arranged in the line direction. The internal discharge space 30 is partitioned by the partition walls 29 in the line direction or in the line direction and the column direction for each unit light emitting region (cell) EU, and the gap size is defined. The discharge space 30 is filled with a suitable discharge gas.

[0005] The display electrodes X and Y are arranged on the display surface H side with respect to the phosphors 28R, 28G, and 28B, so that the surface discharge is wide and the light shielding of the display light is minimized. The transparent electrode 41 and a metal electrode 42 that supplements the conductivity of the transparent electrode 41 are provided.

[0006] When a predetermined voltage is applied to the display electrodes X and Y, discharge in the surface direction of the substrate (surface discharge) occurs, and phosphors 28R, 28G, and 28B are excited by the ultraviolet light emitted from the discharge gas to emit light. To do.

[0007] For PDP display, display electrode Y is used as a scan electrode for row selection, and A discharge for addressing (address discharge) is generated between the display electrode Y and the address electrode A. Unit discharge area to be lit by performing line sequential addressing (cell) After a predetermined amount of wall charge has been formed in the EU, a lighting sustain voltage of alternating polarity is applied simultaneously to the display electrode pairs in all rows, A surface discharge (sustain discharge) is periodically generated in a cell in which a predetermined amount of wall charges is formed.

[0008] After the sustain discharge is completed, a blunt wave reset discharge is generated between all the display electrodes X and Y, and the wall charges existing on all the display electrodes X and Y are substantially erased. (For example, see Patent Document 1). The blunt wave reset discharge is a weak discharge between the display electrodes X and Y by applying a voltage that changes (increases or decreases) with the passage of time between the display electrodes X and Y. This is a method of substantially erasing the wall charges existing in the dielectric layers on the display electrodes X and Y constituting the cell without causing a strong discharge between the display electrodes X and Y. .

Patent Document 1: Japanese Patent Laid-Open No. 2000-75835

Disclosure of the invention

Problems to be solved by the invention

[0009] As described above, the blunt wave reset discharge is a technique for erasing wall charges by a weak discharge, but the present inventors have found that irregular strong discharge may occur during the blunt wave reset discharge. I found it. If a strong discharge occurs, the display quality will deteriorate, so it is desirable to suppress the strong discharge.

[0010] The present invention has been made in view of such circumstances, and provides a plasma display panel capable of suppressing the occurrence of strong discharge during blunt wave reset discharge. Means for Solving the Problems and Effects of the Invention

[0011] The plasma display panel of the present invention includes a plurality of display electrode pairs arranged on a front side substrate across a discharge slit for surface discharge, with a non-discharge region where no discharge occurs, and A plasma display panel in which a front side substrate structure having a dielectric layer covering the display electrode and a back side substrate structure having a partition partitioning an adjacent unit light emitting region on the back side substrate are arranged to face each other. The dielectric layer includes a conductive particle-containing portion in the dielectric layer in the non-discharge region. [0012] The inventors of the present invention, as a result of intensive research, have found that strong discharge generated during blunt wave reset discharge is accumulated on the surface of the dielectric layer in the non-discharge region (usually normal sustain discharge) Obtained the negative charge). Based on this finding, it was found that the occurrence of strong discharge can be suppressed by providing the dielectric layer with the conductive particle-containing portion serving as the charge leakage path, and the present invention has been completed. .

By the way, the above knowledge is obtained based on a graph or the like showing the wall charge distribution after the sustain discharge by the discharge simulation shown in FIG. Here, the graph in Fig. 1 is explained.

FIG. 1 also shows a cross-sectional view of the display electrodes X and Y. The horizontal axis of the graph of FIG. 1 indicates the intermediate position between the display electrode X and the display electrode Y (hereinafter referred to as “origin”). The vertical axis represents the density of wall charges existing on the surface of the dielectric layer. The graph in Fig. 1 shows that there is a negative charge on the surface of the dielectric layer near the display electrode X, a positive charge on the surface of the dielectric layer near the display electrode Y, and a small amount of charge at the origin. Showing

[0015] Of particular note in the graph of FIG. 1 is that in both the display electrodes X and Y, at a position away from the origin (that is, a position close to the non-discharge region, around the dotted circle in FIG. 1). It is that Daraf is falling. This indicates that the amount of negative charge is increasing on the display electrode X side, and that the amount of positive charge is decreasing on the display electrode Y side. This result for both display electrodes X and Y! This is thought to be due to the accumulation of unnecessary negative charges near the non-discharge region. In addition to the above, the inventors also performed a simulation of the blunt wave reset discharge, and found that the negative charge accumulated at the position near the non-discharge region was not erased by the blunt wave reset discharge.

[0016] By comprehensively considering the results of these simulations and the fact that irregular strong discharges occur during blunt wave reset discharge, negative charges accumulate at a position close to the non-discharge region in the sustain discharge. However, a mechanism has been found in which this negative charge continues to be accumulated without being erased by the blunt wave reset discharge, and when it is accumulated to some extent, a strong discharge is generated during the blunt wave reset discharge.

Next, an operation capable of suppressing the occurrence of strong discharge by providing the conductive particle-containing portion in the dielectric layer will be described with reference to FIG. Figure 2 shows the front substrate structure. It is sectional drawing. In FIG. 2, the display electrode X, the display electrode Y, and the display electrode Y are formed on the front substrate 11 in this order, and the dielectric layer 17 covers these display electrodes. A slit between the display electrode X and the display electrode Y is a discharge slit 47 where discharge occurs, and a region between the display electrode Y and the display electrode Y is no discharge! / Non-discharge region 49. The state in which unnecessary wall charges (negative charges) 44 are accumulated on the surface of the dielectric layer 17 in the non-discharge region 49 is schematically shown. Note that FIG. 2 is shown for easy understanding of the present invention, and the present invention is not limited to the configuration of FIG. 2, but actually a protective film such as MgO is formed on the dielectric layer. Yes.

[0018] As described above, the present inventors have found that the strong discharge during the blunt wave reset discharge is caused by the presence of this unnecessary wall charge 44. Power to remove It can be said that it leads to suppression of strong discharge during blunt wave reset discharge. For this purpose, in the present invention, the dielectric layer 17 is provided with a conductive particle-containing portion 45 that serves as a leakage path for unnecessary wall charges 44. Since the conductive particle containing portion 45 has a relatively low electrical resistance value, the wall charges 44 accumulated on the surface of the dielectric layer 17 leak to the display electrode X or Y through the conductive particle containing portion 45. (Or leaked to a separately provided ground portion), thereby removing unnecessary wall charges 44 from the surface of the dielectric layer 17, and as a result, strong discharge during blunt wave reset discharge is suppressed. .

[0019] Incidentally, the unnecessary wall charges 44 reduce the amount of positive charges to be accumulated in the display electrodes in addition to causing a strong discharge, thereby reducing the sustain discharge and reducing the luminance. May cause. According to the present invention, unnecessary wall charges 44 are removed, so that such a problem is solved at the same time.

Brief Description of Drawings

FIG. 1 is a graph showing wall charge distribution after sustain discharge by discharge simulation according to the present invention.

FIG. 2 is a cross-sectional view of the front substrate structure of the PDP of the present invention for explaining the principle of the present invention.

FIG. 3 (a) is a plan view of the back side force of the PDP according to the first embodiment of the present invention, and FIG. 3 (b) is a sectional view taken along line II in FIG. 3 (a). FIG. 4 is a cross-sectional view showing a step of forming a dielectric layer having a conductive particle-containing portion of the PDP according to the first embodiment of the present invention.

[FIG. 5] (a) is a plan view of the back side force of the PDP according to the second embodiment of the present invention, and (b) is a cross-sectional view taken along line II in (a).

[FIG. 6] (a) is a plan view of the back side force of the PDP of the third embodiment of the present invention, and (b) is a cross-sectional view taken along line II in (a).

FIG. 7 (a) is a plan view of the back side force of the PDP according to the fourth embodiment of the present invention, and FIG. 7 (b) is a cross-sectional view taken along line II in FIG. 7 (a).

[FIG. 8] (a) is a plan view of the back side force of the PDP of the fifth embodiment of the present invention, and (b) is a cross-sectional view taken along line II in (a).

[FIG. 9] (a) is a plan view of the back side force of the PDP of the sixth embodiment of the present invention, and (b) is a cross-sectional view taken along line II in (a).

[FIG. 10] (a) is a plan view of the back side force of the PDP of the seventh embodiment of the present invention, and (b) is a cross-sectional view taken along line II in (a).

FIG. 11 is an exploded perspective view showing a configuration of a conventional PDP.

Explanation of symbols

10… PDP (Surface Discharge Plasma Display Panel)

11… Front side substrate (glass substrate)

17… Dielectric layer

18… Protective film

21… Back side substrate (glass substrate)

28R- phosphor layer (red)

28G- phosphor layer (green)

28Β ····· Phosphor layer (blue)

29… Bulkhead

29a… Part of the partition perpendicular to the display electrode

29b… Part of the partition parallel to the display electrode

30… discharge space 41 ··· Transparent electrodes

42 ··· Metal electrode

44 ··· Unnecessary wall charges

45 ·-Conductive particle containing part

47 ··· Discharge slit

49 ·-Non-discharge region

51

53 ··· Display electrode body

55 ··· Display electrode branches

A · · · Address electrode

X ··· Display electrode

Y · · · Display electrode

EU… Unit emission area

EG… 1 pixel

BEST MODE FOR CARRYING OUT THE INVENTION

Hereinafter, an embodiment of the present invention will be described with reference to the drawings. The configurations shown in the drawings and the following description are examples, and the scope of the present invention is not limited to those shown in the drawings and the following description.

[0023] 1. First Embodiment

A PDP according to the first embodiment of the present invention will be described with reference to FIGS. 3 (a) and 3 (b). In the present embodiment, a reflective three-electrode surface discharge type PDP will be described as an example. FIG. 3 (a) is a plan view from the back side of the PDP of the present embodiment, and FIG. 3 (b) is a cross-sectional view taken along line I I in FIG. 3 (a). For convenience of illustration, the phosphor layer, the address electrode and the like included in the back side substrate structure are not shown.

[0024] A plurality of PDPs in the present embodiment are arranged on the front substrate 11 with a non-discharge region 49 in which the pair of display electrodes X and Y arranged with a discharge slit 47 for surface discharge separated by no discharge. And a front-side substrate structure having a dielectric layer 17 covering the display electrodes X and Y, and a rear-side substrate structure having a partition wall 29 that partitions a unit light emitting region adjacent to the rear-side substrate 21. Are arranged opposite to each other. In the PDP of the present embodiment, the dielectric layer 17 includes a conductive particle containing portion 45 serving as a leak path for wall charges accumulated on the surface of the dielectric layer 17 in the non-discharge region 49. The display electrodes X and Y are each composed of a strip-shaped transparent electrode 41 and a metal electrode 42 that supplements the conductivity. The partition walls 29 have a stripe shape extending in a direction perpendicular to the direction in which the display electrodes X and Y extend. The partition wall 29 is positioned in the uppermost layer in the plan view of FIG. 3A, but is represented by a dotted line for convenience of illustration.

[0025] As shown in Fig. 3 (a), the conductive particle-containing portion 45 has at least the display electrodes X and Y in a plan view (that is, when viewed in a plan view as shown in Fig. 3 (a)). It is provided so that it overlaps with one. The conductive particle-containing portion 45 is preferably provided so as to reach at least one of the display electrodes X and Y from the surface of the dielectric layer 17 in the non-discharge region 49. As a result, wall charges accumulated on the surface of the dielectric layer 17 can be leaked to the display electrodes X or Y.

Incidentally, the conductive particle containing portion 45 is provided only in the non-discharge region 49 and its vicinity, and is not provided in the vicinity of the discharge slit 47. This is because when a conductive particle containing portion 45 exists in the vicinity of the discharge slit 47, a large discharge current flowing between the display electrode X and the display electrode Y passes through the conductive particle containing portion 45 and the display electrode X or Y This is because there is a risk that the panel will be destroyed. Therefore, the conductive particle-containing portion 45 is provided in a region where the local discharge current density is small, that is, the non-discharge region 49.

[0027] The conductive particle-containing portion 45 is made of a conductive material (metal such as Cr or Ni or metal acid such as indium oxide, tin oxide or titanium oxide) as a dielectric material for forming the dielectric layer 17. It can also be formed using a material containing a conductive oxide doped with impurities.

[0028] The size of the conductive particles is not particularly limited, but it is preferable that the average particle diameter (D50) of the conductive particles is smaller than the thickness of the dielectric layer 17. When the average particle diameter of the conductive particles is sufficiently smaller than the thickness of the dielectric layer 17, the conductive particles are uniformly dispersed in the dielectric layer 17, and the electric resistance value in the conductive particle containing portion 45 is immediately This is because it makes you feel evenly crushed.

[0029] If the content of the conductive particles in the conductive particle containing portion 45 is too small, the wall charges accumulated on the surface of the dielectric layer 17 in the non-discharge region 49 are not sufficiently removed, and if the content is too large. ,Removal It shouldn't! Even wall charges may be removed, so it is preferable to set the value to a value that does not cause any of these problems.

Here, an example of preferable content of electroconductive particle is illustrated. When the conductive particles are made of metal, the content of the conductive particles in the conductive particle-containing portion 45 is more preferably about 5 wt%, preferably 1 to 10 wt%. This is because the resistance value becomes an appropriate value in the case of such a content.

[0030] The size, type, and content of the conductive particles are not limited to those shown here, and are determined experimentally so that no irregular strong discharge occurs during blunt wave reset discharge. There may be. An example of the experiment is as follows, for example. (1) First, a conductive particle containing part 45 containing 0.1 wt% of conductive particles whose average particle diameter is about half of the thickness of the dielectric layer 17 is formed. In this case, during blunt wave reset discharge Check whether irregular strong discharges occur. (2) If irregular strong discharge occurs, the content of conductive particles is too small, so increase the content a little and check again whether strong discharge occurs. Or, change the size and type of the conductive particles and check again whether or not a strong discharge occurs. (3) By repeating this, determine the optimal size, type and content of the conductive particles.

Next, a method for forming the dielectric layer 17 having the conductive particle containing portion 45 will be described with reference to FIG. FIG. 4 is a cross-sectional view corresponding to FIG. 3 (b), showing a process for forming the dielectric layer 17 having the conductive particle containing portion 45. Fig. 4 shows only the front substrate structure.

First, as shown in FIG. 4, the display electrodes X and Y are formed on the front substrate 11, and then, a binder and a low melting point glass frit are formed in a portion where the conductive particle containing portion 45 is formed. A glass paste containing a solvent and containing conductive particles is applied by screen printing. Next, the remaining portion is coated with a glass paste obtained by adding a binder and a solvent to a low-melting glass frit and baked, whereby the dielectric layer 17 having the conductive particle-containing portion 45 can be formed. The method shown here is an example, and the method of forming the dielectric layer 17 having the conductive particle-containing portion 45 is not limited to that shown here!

The conductive particle containing portion 45 may be formed in an island shape or a band shape.

[0033] 2. Second Embodiment A PDP according to the second embodiment of the present invention will be described with reference to FIGS. 5 (a) and 5 (b). In the present embodiment, a reflective three-electrode surface discharge type PDP will be described as an example. FIG. 5 (a) is a plan view from the back side of the PDP of the present embodiment, and FIG. 5 (b) is a sectional view taken along the line II in FIG. 5 (a). For convenience of illustration, the phosphor layer, the address electrode and the like included in the back side substrate structure are not shown.

[0034] This embodiment is similar to the first embodiment, but the conductive particle-containing portion 45 does not have an overlapping portion with any of the display electrodes X and Y in a plan view. It differs in that it is grounded at a separately provided ground 51. In the present embodiment, wall charges accumulated on the surface of the dielectric layer 17 can be leaked to the ground portion 51.

In the first embodiment, when the conductive particle-containing portion 45 has an overlapping portion with the display electrodes on both sides of the non-discharge region 49, the voltages applied to the display electrodes on both sides need to be equal. (Because there is a possibility of short-circuiting if the voltage is different), in this embodiment, the conductive particle-containing portion 45 has an overlapping portion with both the display electrodes X and Y in plan view. The voltage applied to the display electrodes on both sides of the discharge area 49 need not be the same. In this embodiment, the voltage applied to the display electrodes on both sides of the non-discharge region 49 may be the same.

[0036] 3. Third Embodiment

A PDP according to the third embodiment of the present invention will be described with reference to FIGS. 6 (a) and (b). In the present embodiment, a reflective three-electrode surface discharge type PDP will be described as an example. FIG. 6 (a) is a plan view from the back side of the PDP of this embodiment, and FIG. 6 (b) is a cross-sectional view taken along line I I in FIG. 6 (a). For convenience of illustration, the phosphor layer, the address electrode and the like included in the back side substrate structure are not shown.

This embodiment is similar to the first embodiment, but the display electrodes X and Y each have a main body 53 extending in one direction and a branch extending from the main body 53 toward the non-discharge region 49. The conductive particle containing part 45 is provided so as not to overlap with the main body part 53 in plan view and to overlap with the branch part 55 in plan view. .

[0038] As in the first embodiment, when the conductive particle-containing portion 45 has a portion where the display electrode XX overlaps with the Y main body portion 53 in plan view, the discharge generated in the discharge slit 47 is reduced. , Non-free In this embodiment, the conductive particle-containing portion 45 may have any of the main body portions of the display electrodes X and Y in a plan view. Since 53 has an overlapping portion, the occurrence of DC type abnormal discharge can be suppressed.

In addition, since the conductive particle-containing portion 45 has an overlapping portion with the branch portion 55 in plan view, the wall charges accumulated on the surface of the dielectric layer 17 are transmitted through the branch portion 55 to the display electrode. XX can leak to Y.

[0040] 4. Fourth Embodiment

A PDP according to the fourth embodiment of the present invention will be described with reference to FIGS. 7 (a) and (b). In the present embodiment, a reflective three-electrode surface discharge type PDP will be described as an example. FIG. 7A is a plan view from the back side of the PDP of the present embodiment, and FIG. 7B is a cross-sectional view taken along line I I in FIG. 7A. For convenience of illustration, the phosphor layer, the address electrode and the like included in the back side substrate structure are not shown.

[0041] This embodiment is similar to the third embodiment, but the branch portion 55 of the display electrode X or Y is provided so as to overlap the partition wall 29 in a plan view! The point is different

[0042] Since the discharge generated in the discharge slit 47 does not proceed in the vicinity of the partition wall 29, the branch portion 55 of the display electrode X or Y is provided so as to overlap with the partition wall 29 in plan view. Therefore, the occurrence of DC type abnormal discharge can be further suppressed.

[0043] 5. Fifth Embodiment

A PDP according to the fifth embodiment of the present invention will be described with reference to FIGS. 8 (a) and 8 (b). In the present embodiment, a reflective three-electrode surface discharge type PDP will be described as an example. FIG. 8 (a) is a plan view from the back side of the PDP of this embodiment, and FIG. 8 (b) is a cross-sectional view taken along line I I in FIG. 8 (a). For convenience of illustration, the phosphor layer, the address electrode and the like included in the back side substrate structure are not shown.

This embodiment is similar to the fourth embodiment, except that the partition walls 29 have a lattice shape (both box or ruffle) and are perpendicular to the direction in which the display electrodes X and Y extend. The extending part (vertical part) 29a and the part extending in parallel with the direction in which the display electrodes X and Y extend (parallel part) 29b. The parallel portion 29b is disposed so as to overlap with the non-discharge region 49 in plan view.

[0045] Since the discharge generated in the discharge slit 47 does not proceed in the vicinity of the partition wall 29, the parallel portion 29b of the partition wall 29 is provided so as to overlap with the non-discharge region 49 in a plan view. Therefore, it is possible to prevent the discharge generated in the discharge slit 47 from proceeding to the vicinity of the conductive particle containing portion 45 in the non-discharge region 49, thereby suppressing the occurrence of DC type abnormal discharge.

[0046] 6. Sixth Embodiment

A PDP according to the sixth embodiment of the present invention will be described with reference to FIGS. 9 (a) and 9 (b). In the present embodiment, a reflective three-electrode surface discharge type PDP will be described as an example. FIG. 9 (a) is a plan view from the back side of the PDP of the present embodiment, and FIG. 9 (b) is a cross-sectional view taken along line I I in FIG. 9 (a). For convenience of illustration, the phosphor layer, the address electrode and the like included in the back side substrate structure are not shown.

[0047] This embodiment is similar to the fifth embodiment, but the transparent electrodes 41 of two display electrodes adjacent to each other across the non-discharge region 49 are connected, and these two display electrodes are common. It has a metal electrode 42! / And it has a different point!

[0048] Also in the present embodiment, the parallel portion 29b of the partition wall 29 is provided so as to have an overlapping portion with the non-discharge region 49 in a plan view, so that the discharge generated in the discharge slit 47 is prevented. It does not proceed to the vicinity of the conductive particle containing portion 45 in the non-discharge region 49, and the occurrence of DC type abnormal discharge is suppressed. The width of the region near the parallel portion 29b of the partition wall 29 where the discharge generated in the discharge slit 47 does not proceed is, for example, about 5 to 30 / ζ πι.

[0049] 7. Seventh Embodiment

A PDP according to the seventh embodiment of the present invention will be described with reference to FIGS. 10 (a) and 10 (b). In the present embodiment, a reflective three-electrode surface discharge type PDP will be described as an example. FIG. 10 (a) is a plan view from the back side of the PDP of this embodiment, and FIG. 10 (b) is a cross-sectional view taken along the line II in FIG. 10 (a). For the convenience of illustration, the phosphor layer electrode and the like included in the rear substrate structure are not shown.

[0050] This embodiment is similar to the sixth embodiment except that (1) the display electrode X or Y is A metal electrode 42 extending in parallel with the lit 47 and a T-shaped transparent electrode 41 extending in a branch shape from the metal electrode 42 toward the discharge slit 47; and (2) the conductive particle containing portion 45 is seen in a plan view. However, the metal electrode 42 is formed in an island shape so as to have an overlapping portion and the transparent electrode 41 not to have an overlapping portion.

[0051] In the present embodiment, the conductive particle containing portion 45 is not formed in the portion overlapping the transparent electrode 41 through which the discharge current substantially flows in a plan view, and the discharge current does not flow substantially! /, By forming the conductive particle containing portion 45 in the portion overlapping the metal electrode 42 in plan view, it is possible to efficiently remove unnecessary wall charges while suppressing the occurrence of abnormal discharge. Yes.

[0052] Various features shown in the above embodiments can be combined with each other. In the case where a plurality of features are included in one embodiment, one or a plurality of features among them can be extracted appropriately and used in the present invention alone or in combination.

Claims

The scope of the claims

[1] A plurality of pairs of display electrodes arranged on the front side substrate with a discharge slit for surface discharge separated from each other! / ヽ a plurality of dielectric electrodes arranged with a non-discharge region therebetween and covering the display electrode A plasma display panel in which a front-side substrate structure having a body layer and a back-side substrate structure having partition walls that divide adjacent unit light-emitting regions on the back-side substrate are arranged to face each other.

The plasma display panel, wherein the dielectric layer includes a conductive particle-containing portion in the dielectric layer in the non-discharge region.

2. The plasma display panel according to claim 1, wherein the conductive particle-containing portion of the dielectric layer is provided so as to overlap with at least one of the display electrodes in a plan view.

[3] The conductive particle-containing portion of the dielectric layer is grounded at a separately provided ground portion.

The plasma display panel according to claim 1, wherein the plasma display panel is V.

[4] The display electrode includes a main body extending in one direction and a branch extending from the main body toward the non-discharge region.

The plasma display according to claim 1, wherein the conductive particle-containing portion of the dielectric layer is provided so as not to have an overlapping portion with the main body portion and to have an overlapping portion with the branch portion in a plan view. panel.

5. The plasma display panel according to claim 4, wherein the branch portion is provided at a position having an overlapping portion with the partition in a plan view.

[6] The display electrode includes a metal electrode extending in parallel to the discharge slit, and a transparent electrode extending in a branch shape from the metal electrode toward the discharge slit,

The conductive particle-containing portion of the dielectric layer is formed in an island shape so as to have an overlapping portion with the metal electrode and not to have an overlapping portion with the transparent electrode in a plan view. The plasma display panel as described.

[7] The reset discharge is generated between the display electrodes by applying a voltage that increases or decreases over time between the display electrodes that generate the surface discharge. The plasma display panel.