KR20050088535A - Plasma display panel - Google Patents

Abstract

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a plasma display panel which can prevent phosphor deterioration due to address discharge, improve light and dark room contrast, and secure sufficient space for discharging the electric power to improve brightness and luminous efficiency. Plasma display panel according to the present invention, the back substrate; Address electrodes arranged to extend in one direction on the rear substrate; A first dielectric layer covering the address electrodes; Barrier ribs formed to partition a discharge space on the first dielectric layer; A front substrate spaced apart from the rear substrate by a predetermined interval to face each other; Sustain electrode pairs arranged to intersect the address electrodes on one surface of the front substrate facing the rear substrate; A second dielectric layer covering the sustain electrode pairs; A protective layer formed on the second dielectric layer; A discharge gas charged in the discharge space; A protruding dielectric connected to the address electrodes and protruding at a predetermined height from the first dielectric layer toward the front substrate in the discharge space; And a phosphor layer formed on at least the first dielectric.

Description

Plasma display panel {Plasma display panel}

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a plasma display panel (PDP). More particularly, the present invention relates to a plasma display panel (PDP). A plasma display panel can improve luminous efficiency.

Plasma display panels are attracting attention as flat panel display panels that can replace cathode ray tubes due to their excellent display performance such as display capacity, brightness, contrast, and viewing angle. The plasma display panel is roughly classified into a direct current (DC) type and an alternating current (AC) type according to its operation principle. The DC plasma display panel has a structure in which all electrodes are exposed to a discharge space, and charges are directly transferred between the corresponding electrodes.

In contrast, the AC plasma display panel has a structure in which at least one electrode of the corresponding electrodes is surrounded by a dielectric material, and thus no direct charges are transferred between the corresponding electrodes, but by an electric field of wall charge. Discharge is performed.

In addition, the plasma display panel can be roughly divided into a counter discharge type and a surface discharge type according to the configuration of the electrodes. In the opposite discharge type plasma display panel, an address electrode and a scan electrode for selecting a pixel to emit light are opposed to each unit pixel so that an address discharge for selecting and discharging a desired pixel and a sustaining discharge for maintaining the address discharge are performed. Occurs between two electrodes. On the other hand, in the surface discharge plasma display panel, a scan electrode and a common electrode facing the address electrode are provided for each unit pixel, and the address discharge is generated between the address electrode and the common electrode, and the scan electrode and the common electrode are provided. The sustain discharge occurs in between.

Hereinafter, one structure of the three-electrode surface discharge plasma display panel 100 will be schematically described with reference to FIG. 1.

As illustrated, the first electrode layer 104 is formed on the rear substrate 101 in a predetermined pattern, and the address electrode 102 and the upper surface of the rear substrate 101 are embedded in the first dielectric layer 104. Is formed. A partition 106 is formed on the first dielectric layer 104 to maintain a discharge distance, and a phosphor layer 108 is coated on the surfaces of the first dielectric layer 104 and the partition 106.

In addition, a common electrode 112a and a scan electrode 112b orthogonal to the address electrode 102 are formed on the bottom surface of the front substrate 111 disposed above the rear substrate 101, and the electrodes 112a and 112b are formed. ) Is electrically connected to the bus electrode 112c made of a predetermined metal to generate an initial discharge. Here, the electrodes 112a, 112b and 112c constitute the display electrode 112. The front substrate 111 and the electrodes 112a, 112b, and 112c formed on the bottom surface of the front substrate 111 are buried by the second dielectric layer 114, and a protective layer of magnesium monoxide (MgO) is formed on the top surface of the second dielectric layer 114. 115 is formed.

Accordingly, when a predetermined voltage is applied to each of the electrodes, ions of the discharge gas are accumulated in the first dielectric layer 104, and a trigger discharge occurs between the address electrode 102 and the common electrode 112a via the ions. Charged particles are formed on the lower surface of the second dielectric layer 114 of the front substrate 111. In this state, when a predetermined voltage is applied between the scan electrode 112b and the common electrode 112a in accordance with the image signal, sustain discharge occurs in the discharge space. At this time, a plasma is formed in the discharge gas, and the phosphor of the phosphor layer 108 is excited by the ultraviolet radiation to generate light.

In a conventional plasma display panel having such a configuration, in order to improve luminous efficiency and luminance, a method of forming a partition wall in a matrix or a delta type has recently been devised. Such a partition wall has been designed to provide as much luminous efficiency as desired. There is a limit to gaining. The luminous efficiency can generally be improved by increasing the height of the barrier ribs to increase the coating area and the discharge space of the phosphor. However, as the barrier ribs increase, the addressing voltage must be increased, so that the barrier rib height cannot be increased without limit.

In addition, since the address electrode 102 is located under the phosphor layer 108, the phosphors constituting the phosphor layer 108 deteriorate due to the address discharge generated between the address electrode 102 and the scan electrode 112b. Thereby, there is a problem that permanent afterimage occurs.

In addition, since the visible light is emitted from the phosphor formed between the address electrode 102 and the scan electrode 112b at the time of address discharge, there is a problem that the contrast deteriorates.

SUMMARY OF THE INVENTION The present invention has been made to solve the above problems, and is formed so that the inside of the discharge space has a step, and no phosphor is formed between the address electrode and the scan electrode causing the address discharge, thereby preventing the occurrence of phosphor degradation due to the address discharge. It is an object of the present invention to provide a plasma display panel capable of preventing, improving light and dark room contrast, and ensuring sufficient discharge space to improve brightness and luminous efficiency.

Plasma display panel according to the present invention in order to achieve the above object,

Back substrate;

Address electrodes arranged to extend in one direction on the rear substrate;

A first dielectric layer covering the address electrodes;

Barrier ribs formed to partition a discharge space on the first dielectric layer;

A front substrate spaced apart from the rear substrate by a predetermined distance to face each other;

Sustain electrode pairs arranged to intersect the address electrodes on one surface of the front substrate facing the back substrate;

A second dielectric layer covering the sustain electrode pairs;

A protective layer formed on the second dielectric layer;

A discharge gas charged in the discharge space;

A protruding dielectric connected to the address electrodes and protruding at a predetermined height from the first dielectric layer toward the front substrate in the discharge space; And

And a phosphor layer formed on at least the first dielectric.

In addition, it is preferable to further include a stepped partition wall formed in at least a partial region on the protruding dielectric.

According to the present invention, occurrence of phosphor deterioration due to address discharge can be prevented, and sufficient discharge space can be secured while improving brightness and light emission efficiency while improving bright and dark room contrast.

Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings.

2 is an exploded perspective view schematically showing a plasma display panel as a preferred embodiment of the present invention. 3 is a cross-sectional view schematically illustrating a cross section of the plasma display panel of FIG. 2. 4 is a plan view schematically illustrating a lower plate of the plasma display panel of FIG. 2.

Referring to the drawings, the plasma display panel 2 according to the present invention includes a rear substrate 21; A front substrate 31; Protruding dielectric 25; And a phosphor layer 28.

The rear substrate 21 is formed with barriers 26 partitioning the address electrodes 22 and the discharge space on one surface thereof. The front substrate 31 is disposed to face the surface on which the address electrodes 22 and the partition walls 26 of the rear substrate 21 are spaced apart from the rear substrate 21 by a predetermined interval. The sustain electrodes 32 are formed to intersect the address electrodes 22 on one surface opposite to the? The protruding dielectric 25 extends from the address electrodes 22 to protrude into the discharge space 29. The phosphor layer 28 is formed by applying a phosphor to at least a portion of regions other than the surface of the protruding dielectric 25 facing the front substrate and the surface on which the storage electrodes are formed.

The technical idea of the present invention having such a technical configuration can be applied to various types of plasma display panels including a three-electrode AC surface discharge plasma display panel.

In particular, the three-electrode type AC surface discharge plasma display panel 2 as a specific embodiment as shown in FIG. 2 includes a back substrate 21, address electrodes 22, a first dielectric layer 24, and partition walls 26. And a front substrate 31, a sustain electrode 32, a second dielectric layer 34, a protective layer 35, a protruding dielectric 25, and a phosphor layer 28.

The address electrode 22 is disposed to extend in one direction on the rear substrate 21. The first dielectric layer 24 is formed on the rear substrate 21 to cover the address electrodes 22. The partition wall 26 is formed on the first dielectric layer 24 to partition the discharge space 29. At this time, the discharge gas is filled in the discharge space 29.

The front substrate 31 is disposed to face each other at a predetermined interval from the rear substrate 21. The sustain electrode 32 is disposed below the front substrate 31 so as to intersect the address electrodes 22. In this embodiment, the sustain electrode 32 is preferably formed on the front substrate 31 so as to cross at right angles. The second dielectric layer 34 is disposed under the front substrate 31 to cover the storage electrode 32. The protective layer 35 is formed on the bottom surface of the second dielectric layer 34.

The protruding dielectric 25 is connected to the address electrode 22 and is formed to protrude from the first dielectric layer 24 toward the front substrate 31 at a predetermined height in the discharge space 29. The phosphor layer 28 is formed on at least a first dielectric 24, preferably a surface facing the front substrate 31 of the protruding dielectric 25 in the discharge space 29 and the sustain electrode 32. Phosphors are formed on at least some of the regions except for the surface to be formed.

In this case, the back substrate 21, the address electrodes 22, the first dielectric layer 24, the partitions 26, the protruding dielectric 25, and the phosphor layer 28 form a lower plate, and the front substrate 31 is formed. ), The sustain electrode 32, the second dielectric layer 34, and the protective layer 35 form an upper plate, and the upper plate and the lower plate are coupled to each other to form the plasma display panel 2. In particular, the discharge space 29 formed by the back substrate 21, the front substrate 31, and the partition wall 26 forms respective discharge cells.

The front substrate 31 and the rear substrate 21 are spaced apart from each other by a predetermined distance so as to face each other so that a discharge space 29 is formed therebetween. A thin glass substrate made of transparent glass is generally used.

The sustain electrode 32 includes a common electrode 32a, a scan electrode 32b, and a bus electrode 32c, respectively. The scan electrode 32b selects a discharge cell to be displayed by generating an address discharge with the address electrode 22. The common electrode 32a, together with the scan electrode 32a, causes an electrical discharge to express the luminance in each discharge cell. In this case, since the scan electrode 32b and the common electrode 32a are disposed on the front substrate 31 on which the image is expressed, a transparent indium tin oxide (ITO) electrode is used to allow visible light emitted from the phosphor to pass therethrough. desirable. However, since the ITO electrode typically has low electrical conductivity, a bus electrode 32c of a metallic material may be used to compensate for this problem.

The second dielectric layer 34 is disposed under the front substrate 31 so as to cover the sustain electrode pairs 32 to prevent the direct electrode from being exposed to gas discharge, and the protective layer 35 is formed as the second dielectric layer 34. It is formed on the lower surface of the dielectric layer 34 to protect the second dielectric layer 34 from being damaged by gas discharge.

The address electrode 22 is disposed to extend in at least one direction on the rear substrate 21. In this case, as in the conventional plasma display panel, at least one or more electrode lines may be arranged in a stripe form in parallel with each other. In addition, the first dielectric layer 24 is formed on the rear substrate 21 to cover the address electrode 22 to prevent the address electrode 22 from being directly exposed to the gas discharge generated in the discharge space 29. do.

The partition wall 26 is formed between the rear substrate 21 and the front substrate 31 to maintain the discharge distance, and partition each discharge space 29 to prevent interference with the adjacent discharge space. In particular, in the present embodiment, as shown in FIG. 2, it is preferable that the partition wall is arranged in a stripe shape in a direction parallel to the address electrode. However, according to the exemplary embodiment, the present invention may be applied to various types of partition wall arrangements including a lattice form.

The protruding dielectric 25 extends from the address electrode 22 to protrude into the discharge space 29, so that address discharge between the address electrode 22 and the scan electrode 32b can be more easily performed. will be. That is, since the distance between the address electrode 22 and the scan electrode 32b becomes close, a predetermined voltage is applied to each of the address electrode 22 and the scan electrode 32b for the address discharge to select the discharge cell to be displayed. According to the present invention, the address voltage applied to the address electrode can be made smaller than in the conventional case.

In particular, the height of the protruding dielectric 25 protruding into the discharge space may be adjusted to adjust the address discharge voltage. In order to make a high efficiency plasma display panel, it is necessary to increase the ratio of xenon (Xe) in the discharge gas charged inside the discharge space. In this case, a large address voltage is required to cause discharge. However, according to the present invention, the height of the protruding dielectric 25 may be adjusted to increase discharge efficiency and brightness without applying a high voltage to the address electrode.

In this case, the protruding dielectric 25 may be formed of the same dielectric material that forms the first dielectric layer 24 and the second dielectric layer 34, but extends from the address electrode 22 by a predetermined distance to the scan electrode 32b. Since it is necessary to be able to cause an address discharge, it is desirable to be formed of a material having a dielectric property that can satisfy these characteristics.

In addition, in order to increase the discharge space 29 in order to increase the brightness and efficiency of the conventional plasma display panel, the distance between the address electrode and the scan electrode is increased, so that the address voltage has to be increased accordingly, thereby increasing the discharge space. However, according to the present invention, by applying the protruding dielectric 25, the address discharge distance can be reduced, so that the discharge space can be increased without increasing the address voltage, thereby increasing brightness and efficiency.

In addition, the distance between the scanning electrode 32b which causes the sustain discharge, which is the electric discharge for expressing luminance, and the surface on which the phosphor on the back substrate 21 is coated from the lower surface of the front substrate 31 on which the common electrode 32a is formed Since the deep space discharge space 29 can be formed, the portion where the gas discharge at the time of sustain discharge reaches the phosphor directly can be reduced, thereby alleviating the problem of permanent afterimage.

Also, as shown in FIGS. 2 and 3, the protruding dielectric 25 extending from the address electrode 22 is preferably located in an area immediately below the portion where the scan electrode 32b in the discharge space is formed. This makes the distance between the address electrode 22 and the protruding dielectric 25 as close as possible, making the address discharge easier, and the space causing the address discharge between the scan electrode 32b and the address electrode 22 and the scan electrode. This is to make it possible to separate the space causing the sustain discharge between the 32b and the common electrode 32a.

The phosphor layer 28 is preferably formed so that phosphors are not coated on the surface facing the front substrate 31 of the protruding dielectric 25 in the discharge space 29 and the surface on which the sustain electrode 32 is formed. Do. In other words, the phosphor is not applied to the surface of the protruding dielectric 25 extending from the address electrode 22 toward the scan electrode 32b, so that the address discharge between the scan electrode 32b and the address electrode 22 at the time of discharge. This is to prevent phosphor deterioration due to gas discharge.

Therefore, the phosphor deterioration due to the address discharge is eliminated, and thus the problem of permanent afterimage can be prevented. In addition, since light emission of visible light due to discharge between the address electrode and the scan electrode can be reduced during address discharge and reset discharge, darkroom contrast can be improved.

In addition, since the discharge between the address electrode and the scan electrode is mainly used during the reset discharge, the light emission of the visible light due to the discharge between the address electrode and the scan electrode during the reset discharge can be reduced, so that the darkroom contrast can be improved.

In addition, FIG. 5 shows a plasma display panel as another preferred embodiment of the present invention. It is preferable that a part of the address electrode 22 formed under the first dielectric layer 24 is embedded in the protruding dielectric 25. Do. Accordingly, it may be formed to extend 23 from the lower surface to the inside of the protruding dielectric 25.

Accordingly, while having the same effect of the present invention in the embodiment shown in FIG. 2, the distance between the address electrode 22 and the scan electrode 32b becomes closer, so that address discharge can be generated more easily. Can be.

In addition, the surface of the protruding dielectric 25 facing the front substrate may be formed to have a black color, thereby reducing the luminance of reflection to the outside by the black protruding dielectric 25 to improve clear room contrast. have.

6 is an exploded perspective view schematically showing a plasma display panel as another preferred embodiment of the present invention. FIG. 7 is a cross-sectional view schematically illustrating a cross section of the plasma display panel of FIG. 6. FIG. 8 is a plan view schematically illustrating a lower plate of the plasma display panel of FIG. 7.

Referring to the drawings, the plasma display panel 3 according to the present embodiment includes the same components having the same functions and effects except for the plasma display panel 2 shown in FIGS. 2 to 5 and the technical details described below. The same reference numerals are used for these, and detailed description thereof is omitted.

The partition wall 26 may be disposed in a stripe shape in a direction parallel to the address electrode. In addition, it is preferable to further include a stepped partition wall 27 formed in at least a portion of the area over the projecting dielectric 25, the stepped partition wall 27 is on the projecting dielectric 25 so as to intersect the partition 26. It can be formed in some areas of the.

In order to allow the address discharge to occur through the upper surface of the protruding dielectric 25 extending from the address electrode 22 and the surface of the second dielectric layer 34 covering the scan electrode 32b. It is preferable to have a width smaller than the width of the protruding dielectric 25 so that the upper surface of the protruding dielectric 25 is not covered by the stepped partition wall 27. By such a stepped partition wall 27, interference with adjacent discharge cells due to discharge in the discharge space of the discharge cells can be prevented.

In addition, the stepped partition wall 27 is preferably formed in black. Accordingly, the brightness of the reflection to the outside may be reduced by the black stepped partition wall 27 to improve the clear room contrast.

9 is an exploded perspective view schematically showing a plasma display panel as another preferred embodiment of the present invention. FIG. 10 is a cross-sectional view schematically illustrating a cross section of the plasma display panel of FIG. 9. FIG. 11 is a plan view schematically illustrating a bottom plate of the plasma display panel of FIG. 9. 12 is a plan view schematically illustrating an address electrode arrangement of the plasma display panel of FIG. 9.

Referring to the drawings, the plasma display panel 4 according to the present embodiment includes the same components having the same functions and effects except for the plasma display panel 2 shown in FIGS. 2 to 5 and the technical details described below. The same reference numerals are used for these, and detailed description thereof is omitted.

In the plasma display panel 4 according to the present exemplary embodiment, it is preferable that an address electrode 42 is embedded in the partition 46 and formed along the partition 46. In addition, it is preferable to further include a protruding address electrode 42a which extends from the address electrode 42 and is embedded in the protruding dielectric 45.

As a result, the address electrode 42b and the address electrodes 42 and 42a causing the address discharge may be located closer to the scan electrode 52b, thereby making the address discharge easier.

In addition, the partition wall 46 is disposed in a stripe shape in a direction parallel to the address electrode, and further includes a stepped partition wall 47 formed in a partial region on the protruding dielectric 45 to intersect the partition wall 46. can do.

FIG. 13 is an exploded perspective view schematically showing a four-electrode plasma display panel as another preferred embodiment of the present invention. 14 is a cross-sectional view schematically illustrating a cross section of the plasma display panel of FIG. 13. FIG. 15 is a plan view schematically illustrating a bottom plate of the plasma display panel of FIG. 13.

Referring to the drawings, the plasma display panel 6 according to the present embodiment includes the same components having the same functions and effects except for the plasma display panel 2 shown in FIGS. 2 to 5 and the technical details described below. The same reference numerals are used for these, and detailed description thereof is omitted.

In the plasma display panel 6 according to the present embodiment, the sustain electrode 72 includes a scan electrode 72b, a first common electrode 72d, and a second common electrode 72e. The discharge plasma display panel 6 can be formed.

The scan electrode 72b causes an address discharge with the address electrode 62 in the discharge space of the discharge cell to be displayed, and the first common electrode 72d and the second common electrode 72e are the scan electrode ( 72b) and spaced apart from each other by a predetermined interval to generate sustain discharge with the scan electrode 72b.

Thus, by forming the four-electrode plasma display 6, by adjusting the area and the distance of the first common electrode (72d) to adjust the size of the unit light it is easier to express low gradation, and to ensure the discharge stability have. In addition, the distance between the scan electrode 72b and the second common electrode 72e and the widths of the first common electrode 72d and the second common electrode 72e are more easily adjusted to adjust the scan electrode 72b and the second common electrode 72e. The opening ratio due to the long gap between the common electrodes 72e can be improved.

The above description of the plasma display panel according to the present invention is mainly described with respect to the surface discharge type AC plasma display panel, but includes a protruding dielectric extending from the address electrode to protrude into the discharge space, and the address discharge Since the phosphor is not applied to the opposite surface of the scanning electrode and the protruding dielectric, the plasma display panel may be applied to various types of plasma display panels capable of suppressing phosphor degradation and emission of visible light during address discharge.

According to the plasma display panel according to the present invention, the following effects can be obtained.

First, the inside of the discharge space is formed to have a step, and no phosphor is formed between the address electrode and the scan electrode causing the address discharge, thereby preventing the occurrence of permanent deterioration by preventing the occurrence of phosphor degradation due to the address discharge. .

Further, since no phosphor is formed between the address electrode and the scan electrode causing the address discharge, the light emission of the visible light due to the discharge between the address electrode and the scan electrode can be reduced during the address discharge, so that the darkroom contrast can be improved.

In addition, since the discharge between the address electrode and the scan electrode is mainly used during the reset discharge, the light emission of the visible light due to the discharge between the address electrode and the scan electrode during the reset discharge can be reduced, so that the darkroom contrast can be improved.

In addition, the discharge distance between the address electrode and the scan electrode can be reduced by the step formed in the discharge space, so that the discharge space can be large without further increasing the address voltage. Therefore, deterioration of the phosphor during the sustain discharge between the scan electrode and the common electrode can be reduced, so that the occurrence of permanent afterimage can be suppressed, and the luminance and the light emitting efficiency can be improved by increasing the phosphor coating area and the discharge space. .

In addition, since the luminance of reflection can be reduced by increasing the black region by the stepped portion, bright room contrast can be improved.

Although the present invention has been described with reference to one embodiment shown in the accompanying drawings, it is merely an example, and those skilled in the art may realize various modifications and equivalent other embodiments therefrom. I can understand. Accordingly, the true scope of protection of the invention should be defined only by the appended claims.

1 is an exploded perspective view showing the structure of a conventional three-electrode surface discharge type plasma display panel.

2 is an exploded perspective view schematically showing a plasma display panel as a preferred embodiment of the present invention.

3 is a cross-sectional view schematically illustrating a cross section of the plasma display panel of FIG. 2.

4 is a plan view schematically illustrating a lower plate of the plasma display panel of FIG. 2.

5 is a cross-sectional view schematically showing one cross section of the plasma display panel according to another exemplary embodiment of the present invention.

6 is an exploded perspective view schematically showing a plasma display panel as another preferred embodiment of the present invention.

FIG. 7 is a cross-sectional view schematically illustrating a cross section of the plasma display panel of FIG. 6.

8 is a plan view schematically illustrating a lower plate of the plasma display panel of FIG. 6.

9 is an exploded perspective view schematically showing a plasma display panel as another preferred embodiment of the present invention.

FIG. 10 is a cross-sectional view schematically illustrating a cross section of the plasma display panel of FIG. 9.

FIG. 11 is a plan view schematically illustrating a bottom plate of the plasma display panel of FIG. 9.

12 is a plan view schematically illustrating an address electrode arrangement of the plasma display panel of FIG. 9.

FIG. 13 is an exploded perspective view schematically showing a four-electrode plasma display panel as another preferred embodiment of the present invention.

14 is a cross-sectional view schematically illustrating a cross section of the plasma display panel of FIG. 13.

FIG. 15 is a plan view schematically illustrating a bottom plate of the plasma display panel of FIG. 13.

<Description of the symbols for the main parts of the drawings>

101, 21, 41, 61: back substrate, 102, 22, 42, 62: address electrode,

104, 24, 44, 64: first dielectric layer, 25, 45, 65: protruding dielectric,

106, 26, 46, 66: bulkhead, 27, 47, 67: step bulkhead,

108, 28, 48, 68: phosphor layer, 29, 49, 69: discharge space,

111, 31, 51, 71: front substrate, 112, 32, 52, 72: sustain electrode,

114, 34, 54, 74: second dielectric layer, 115, 35, 55, 75: protective layer.

Claims (10)

Back substrate; Address electrodes arranged to extend in one direction on the rear substrate; A first dielectric layer covering the address electrodes; Barrier ribs formed to partition a discharge space on the first dielectric layer; A front substrate spaced apart from the rear substrate by a predetermined distance to face each other; Sustain electrode pairs arranged to intersect the address electrodes on one surface of the front substrate facing the back substrate; A second dielectric layer covering the sustain electrode pairs; A protective layer formed on the second dielectric layer; A discharge gas charged in the discharge space; A protruding dielectric connected to the address electrodes and protruding at a predetermined height from the first dielectric layer toward the front substrate in the discharge space; And And a phosphor layer formed on at least the first dielectric. The method of claim 1, And the barrier ribs are arranged in a stripe shape in a direction parallel to the address electrodes. The method of claim 2, And a stepped barrier rib formed in at least a portion of the protruding dielectric. The method of claim 3, And the stepped partition wall is black. The method of claim 1, And a portion of the address electrode is embedded in the protruding dielectric. The method of claim 1, And the address electrode is buried in the barrier rib and formed along the barrier rib. The method of claim 6, And a protruding address electrode extending from the address electrode and embedded in the protruding dielectric. The method of claim 1, And the phosphor layer is formed on at least a portion of the protruding dielectric in the discharge space and the first dielectric region. The method of claim 1, And the protruding dielectric is formed so that the surface facing the front substrate is black. The method of claim 1, The sustain electrode pairs, A scan electrode causing an address discharge with the address electrode in the discharge space; And first and second common electrodes spaced apart from the scan electrode at predetermined intervals to cause sustain discharge with the scan electrode, respectively.