KR100659073B1 - Plasma display panel - Google Patents

Abstract

According to an embodiment of the present invention, a first substrate and a second substrate are disposed to face each other, and are disposed between the first substrate and the second substrate, for a plasma display panel capable of low voltage driving and improving light emission efficiency while ensuring discharge stability. Partition walls defining discharge cells in which discharge occurs together with the first substrate and the second substrate, and first and second discharge electrodes extending in one direction and spaced apart from each other to correspond to the discharge cells. A plurality of pairs of discharge electrodes provided, at least one igniter electrode corresponding to each of the discharge cells, and disposed between the first and second discharge electrodes of each of the discharge electrode pairs, and the discharge electrode pairs And an extension part extending in the direction in which the discharge electrode pairs extend and vice versa in a portion intersecting the discharge electrode pairs. And a plurality of address electrodes having, a phosphor layer disposed in the discharge cells, and provides a plasma display panel comprising the gas discharge inside the discharge cells.

Description

Plasma display panel {Plasma display panel}

1 is an exploded perspective view schematically showing a conventional plasma display panel.

FIG. 2 is a schematic cross-sectional view taken along the line II-II of FIG. 1.

3 is an exploded perspective view schematically illustrating a plasma display panel according to an exemplary embodiment of the present invention.

4 is a perspective view schematically illustrating an arrangement structure of electrodes of the plasma display panel illustrated in FIG. 3.

FIG. 5 is a plan view schematically illustrating an arrangement structure of electrodes and a partition of the plasma display panel illustrated in FIG. 3.

6 is a cross-sectional view schematically showing a cross section taken along the line VI-VI of FIG. 3.

FIG. 7 is a cross-sectional view schematically illustrating a modified example of the plasma display panel shown in FIG. 6.

FIG. 8 is a plan view schematically illustrating a modification of the arrangement of the electrodes and the partition walls of the plasma display panel illustrated in FIG. 5.

9 is a cross-sectional view schematically illustrating a modified example of the plasma display panel shown in FIG. 7.

FIG. 10 is a plan view schematically illustrating a modification of the plasma display panel illustrated in FIG. 3.

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

212: first discharge electrode 213: second discharge electrode

214: discharge electrode pair 222: address electrode

222a: address electrode extension 232: first igniter electrode

233: second igniter electrode 234: igniter electrode

The present invention relates to a plasma display panel, and more particularly, to a plasma display panel capable of low voltage driving and ensuring discharge stability while improving luminous efficiency.

In general, a plasma display panel is a flat panel display device that realizes a predetermined image by exciting phosphors by ultraviolet rays generated by gas discharge, and is a next-generation thin flat panel display device that can be thinned and composed of a large screen with high resolution. Be in the spotlight. In order to increase the discharge efficiency of such a plasma display panel, the volume of the space in which the sustain discharge is generated to excite the discharge gas in the panel must be large, the surface area of the phosphor layer must be large, and the visible light emitted from the phosphor layer. Conditions such as fewer components that obstruct the beam should be met.

1 illustrates an example of a conventional plasma display panel, and FIG. 2 illustrates a cross section taken along line II-II of FIG. 1. The plasma display panel 100 includes a first substrate 111 and a second substrate 121 that face each other. Discharge electrode pairs 114 are disposed on the surface 111a of the first substrate in the direction of the second substrate, and a first dielectric layer 115 covering the discharge electrode pairs and a protective layer covering the first dielectric layer 115. 116 is provided. The discharge electrode pair includes an X electrode 112 and a Y electrode 113, and the X electrode 112 and the Y electrode 113 are transparent electrodes 112b and 113b and bus electrodes 112a and 113a, respectively. It is provided. On the surface 121a of the second substrate 121 opposite to the first substrate 111, address electrodes 122 disposed in parallel with each other are provided, and a second dielectric layer covering the address electrodes is disposed. 123, barrier ribs 124 formed on the second dielectric layer 123, and a phosphor layer formed on a surface of the second dielectric layer 123 in the direction of the first substrate 111 and on side surfaces of the barrier rib 124. 125 is provided.

However, in the conventional plasma display panel 100, since the sustain discharge occurs only in the space between the X electrode 112 and the Y electrode 113 disposed only on the bottom surface of the first substrate 111, the space where the sustain discharge occurs. The volume of is small and part of the visible light emitted from the phosphor layer 125 is absorbed and / or reflected by the transparent electrodes 112b and 113b and the bus electrodes 112a and 113a, and thus passes through the first substrate 111. The amount of visible light is significantly smaller than the amount of visible light emitted from the phosphor layer, which causes a problem that the luminous efficiency is significantly lowered. In addition, when the distance between the X electrode 112 and the Y electrode 113 is increased in order to increase the volume of the space in which the sustain discharge occurs and to reduce the factors that hinder the progress of generated light, the driving voltage for the sustain discharge is increased. There was a problem of rising.

The present invention has been made to solve various problems including the above problems, and an object of the present invention is to provide a plasma display panel capable of low voltage driving and improving discharge stability while ensuring light emission efficiency.

In order to achieve the above object and various other objects, the present invention provides a first substrate and a second substrate disposed to face each other, and disposed between the first substrate and the second substrate and the first substrate and A plurality of discharge electrodes including a partition wall defining discharge cells in which discharge occurs together with the second substrate, and first and second discharge electrodes extending in one direction and spaced apart from each other to correspond to the respective discharge cells; Pairs, at least one igniter electrode corresponding to each of the discharge cells, and disposed between the first and second discharge electrodes of the respective discharge electrode pairs, the discharge electrode pairs intersecting the discharge electrode pairs; A plurality of address electrodes having an extension part extending in the direction in which the discharge electrode pairs extend and vice versa in a portion crossing the pairs; A phosphor layer arranged in the cell, and provides a plasma display panel comprising the gas discharge will be within the discharge cells.

According to another aspect of the present invention, the igniter electrode may include a first igniter electrode electrically connected to the first discharge electrode, and a second igniter electrode electrically connected to the second discharge electrode.

According to another feature of the invention, the extension portion of the address electrode may be arranged to correspond to the first igniter electrode and the second igniter electrode.

According to another feature of the invention, the extension portion of the address electrode may be arranged to correspond to the first discharge electrode and the second discharge electrode.

According to another feature of the invention, the discharge electrode pairs may be disposed on the surface of the first substrate in the direction of the second substrate.

According to another feature of the invention, it may be further provided with a first dielectric layer covering the discharge electrode pairs.

According to another feature of the present invention, a protective film covering at least a portion of the first dielectric layer may be further provided.

According to another feature of the present invention, the first discharge electrode of each pair of discharge electrodes may be provided with at least one first protrusion projecting toward the igniter electrode.

According to another feature of the present invention, the cross-sectional area of the first protruding portion may be increased toward the igniter electrode.

According to another feature of the invention, the second discharge electrode of each pair of discharge electrodes may be provided with at least one second protrusion protruding in the direction of the igniter electrode.

According to another feature of the present invention, the cross-sectional area of the second protruding portion may be increased toward the igniter electrode.

According to another feature of the present invention, each of the first discharge electrode and the second discharge electrode of each discharge electrode pair may further include a bus electrode.

According to another feature of the invention, the bus electrode may be disposed in the non-discharge region on the partition wall.

According to another feature of the present invention, the address electrodes may be disposed on a surface of the second substrate in the direction of the first substrate.

According to another feature of the invention, it may be further provided with a second dielectric layer covering the address electrodes.

According to another feature of the invention, the partition wall is formed to surround each discharge cell, each discharge cell has a non-discharge space defined by the partition wall with at least one discharge cell of the neighboring discharge cells to can do.

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

3 is an exploded perspective view schematically showing a plasma display panel according to an exemplary embodiment of the present invention, and FIG. 4 is a perspective view schematically showing an arrangement of electrodes of the plasma display panel shown in FIG. 3, and FIG. 5. 3 is a plan view schematically illustrating an arrangement structure of electrodes and partition walls of the plasma display panel illustrated in FIG. 3, and FIG. 6 is a cross-sectional view schematically illustrating a cross section taken along a line VI-VI of FIG. 3.

Referring to the drawings, the first substrate 211 and the second substrate 221 are disposed to face each other. The first substrate 211 and the second substrate 221 may be formed of a transparent material such as glass. A partition wall 224 is provided between the first substrate 211 and the second substrate 221. In FIG. 3, the barrier rib 224 is provided only on an upper surface of the second substrate 221 in the direction of the first substrate 211, but the second substrate 221 of the first substrate 211 ( Various modifications are possible, such as a partition wall may be provided on the upper surface of the 221 direction.

The partition wall 224 defines discharge cells 226 (see FIG. 6) in which gas discharge occurs along with the first substrate 211 and the second substrate 221. In this case, the partition wall 224 is provided in a lattice form to limit the discharge cells, but the present invention is not limited thereto. That is, the partition 224 may be provided in a stripe shape in one direction, for example, the x direction of FIG. 3. In addition, although the discharge cells are illustrated as being arranged in a matrix form in FIG. 3, the present invention is not limited thereto, and various modifications are possible, such as being arranged in a delta form. In addition, although the cross section of each discharge cell is illustrated in FIG. This is also the same in the embodiments or modifications described later.

As described above, discharge electrode pairs 214 are provided in the discharge cells defined by the first substrate 211, the second substrate 221, and the partition wall 224. That is, the plasma display panel 200 includes discharge electrode pairs 214 extending in one direction to correspond to each discharge cell. 3 to 6, the discharge electrode pairs 214 extend in the y direction. 3 to 6, the discharge electrode pairs 214 are disposed on a surface of the first substrate 211 in the direction of the second substrate 221, but the present invention is not limited thereto.

In this case, each of the discharge electrode pairs 214 may include a first discharge electrode 212 and a second discharge electrode 213 spaced apart from each other. 3 to 6, the first discharge electrode 212 and the second discharge electrode 213 are disposed to extend in the y direction. The first discharge electrode 212 and the second discharge electrode 213 are electrodes for sustain discharge, and sustain discharge is performed between the electrodes to implement an image of the plasma display panel.

The first discharge electrode 212 and the second discharge electrode 213 may be formed of a conductive metal such as aluminum or copper, and light generated inside the plasma display panel 200 may be disposed in the discharge electrode pair 214. When discharged in the provided direction, that is, when discharged to the outside through the first substrate 211, it is preferable that the discharge electrode pair 214 is formed to be transparent. In order to form the transparent electrode, a transparent material such as indium tin oxide (ITO) may be used.

In this case, the first bus electrode 212a and the second bus electrode 213a may be further provided in the first discharge electrode 212 and the second discharge electrode 213 as necessary. Since the transparent portions 212a, 212b, 213a, and 213b of the first discharge electrode 212 and the second discharge electrode 213 generally have high resistances, the transparent discharges 212a, 212b, 213a, and 213b generally have high resistances. Bus electrodes 212a and 213a, such as to be further provided. Accordingly, the bus electrodes 212a and 213a may be formed of silver, copper, gold, aluminum, or the like having low resistance and high electrical conductivity. In addition, the contrast may be improved by including a black additive in the bus electrodes 212a and 213a or by having the multilayer structure including a layer formed of a black material in the bus electrodes 212a and 213a.

The discharge electrodes 212 and 213 are connected to a connection cable arranged at an edge of the plasma display panel 200 to receive power, so that only the bus electrodes 212a and 213a are connected to the connection cable. Various modifications are possible as well.

3 to 6, at least one igniter electrode 234 is provided between the first discharge electrode 212 and the second discharge electrode 213 of each discharge electrode pair 214. . Of course, the igniter electrode may be provided to correspond to each discharge cell. In this case, the igniter electrode may extend in the one direction as shown in the drawings, but the present invention is not limited thereto.

The igniter electrode 234 may include a first igniter electrode 232 and a second igniter electrode 233, and the first igniter electrode 232 is electrically connected to the first discharge electrode 212. The second igniter electrode 233 may be electrically connected to the second discharge electrode 213. The igniter electrode 234 is disposed between the first discharge electrode 212 and the second discharge electrode 213 to lower the discharge start voltage, improve discharge efficiency, and increase luminous efficiency. This will be described later.

In this case, the first discharge electrode 212 of each pair of discharge electrodes 214 may include at least one first protrusion 212b protruding in the direction of the igniter electrode 234, and likewise the second discharge electrode ( 213 may also include at least one second protrusion 213b protruding toward the igniter electrode 234. 3 to 5, the first discharge electrode 212 and the second discharge electrode 213 may be stripe types without protrusions.

When the protrusions are provided as illustrated in FIGS. 3 to 5, the bus electrodes 212a and 213a may be provided on the lines 212c and 213c connecting the protrusions 212b and 213b. In contrast, the bus lines 212a and 213a are not provided with the lines 212c and 213c but only the protrusions 212b and 213b and electrically connected to the protrusions 212b and 213b. Various modifications are possible as well.

The discharge electrode pairs 214 and the igniter electrode 234 as described above are covered with the first dielectric layer 215. This prevents the first discharge electrode 212 and the second discharge electrode 213 provided in each discharge electrode pair 214 from directly energizing each other, and the charged particles collide with the discharge electrodes 212 and 213. This is to prevent damaging them. Such dielectrics include PbO, B ₂ O ₃ and SiO ₂ . When light generated in the plasma display panel 200 is emitted to the outside through the first substrate 211, the first dielectric layer 215 may be formed of a transparent material.

In this case, at least part of the surface of the first dielectric layer 215 is preferably covered by a protective film. 3 and 6, the entire surface of the first dielectric layer 215 is shown covered by the protective film 216. The protective film 216 is formed by depositing a material such as MgO. In addition to protecting the first dielectric layer 215, the passivation layer also emits secondary electrons to further activate discharge.

Meanwhile, in the plasma display panel 200 according to the present exemplary embodiment illustrated in FIGS. 3 to 6, the discharge electrode pairs 214 extend in the one direction, that is, the y direction, and the discharge electrode pairs 214. Address electrodes 222 extending to intersect with each other, that is, extending in the x-direction. In this electrode arrangement structure, an address discharge occurs between at least one of the first discharge electrode 212 and the second discharge electrode 213 and the address electrode 222, and then the first discharge electrode ( The sustain discharge is caused to occur between the 212 and the second discharge electrode 213.

As such, each discharge cell of the plasma display panel driven by the address discharge and the sustain discharge may further include at least one address electrode in addition to two discharge electrodes (one discharge electrode pair), which are commonly referred to as X electrodes and Y electrodes. Can be. The address discharge is a discharge occurring between the Y electrode and the address electrode. As in the case of the plasma display panel according to the present embodiment, the address electrode 222 is lower than the first discharge electrode 212 and the second discharge electrode 213. In the case of, the one of the first discharge electrode 212 and the second discharge electrode 213 becomes a Y electrode and the other electrode becomes an X electrode. The address electrode 222 may also be formed of a conductive metal.

In this case, an extension part extending in the y-direction in which the discharge electrode pairs 214 extend and in the opposite direction (-y direction) is formed at a portion crossing the discharge electrode pairs 214 of the address electrode 222. 222a).

As will be described later, the plasma display panel 200 selects discharge cells to emit light through an address discharge between any one electrode of each of the discharge electrode pairs 214 and the address electrode 222, and Thereafter, light is generated through sustain discharge between the first discharge electrode 212 and the second discharge electrode 213 of the selected discharge cells.

At this time, the closer the distance between the first discharge electrode 212 and the second discharge electrode 213, the lower the voltage applied for sustain discharge can ultimately lower the power consumption. However, since discharge occurs only in a space between the first discharge electrode 212 and the second discharge electrode 213, the closer the distance between the first discharge electrode 212 and the second discharge electrode 213 is, the closer it is maintained. The volume of the space where the discharge takes place becomes small, resulting in a smaller amount of generated light and a lower discharge efficiency. In addition, when light generated in the plasma display panel 200 is emitted to the outside through the first substrate 211 on which the first discharge electrode 212 and the second discharge electrode 213 are disposed, The luminous efficiency may be lowered due to absorption or reflection of light by the first discharge electrode 212 and the second discharge electrode 213.

Accordingly, the distance between the first discharge electrode 212 and the second discharge electrode 213 is preferably far from each other, thereby preventing the sustain discharge voltage from increasing. An igniter electrode 234 is provided between the first discharge electrode 212 and the second discharge electrode 213. That is, even when the distance between the first discharge electrode 212 and the second discharge electrode 213 is far between the first igniter electrode 232 and the second igniter electrode 233 of the igniter electrode 234 Since the distance is short, the voltage applied to initiate the sustain discharge between the first igniter electrode 232 and the second igniter electrode 233 can be lowered. The discharge initiated between the first igniter electrode 232 and the second igniter electrode 233 is gradually diffused to generate a discharge between the first discharge electrode 212 and the second discharge electrode 213. .

At this time, in order to facilitate the sustain discharge between the first igniter electrode 232 and the second igniter electrode 233, between the first igniter electrode 232 and the second igniter electrode 233. It is preferable to allow sufficient wall charges to be generated when the address discharge is made before the sustain discharge is started. Therefore, the extension electrode 222a extended in the y direction and the opposite direction (-y direction) in which the discharge electrode pairs 214 extend, is provided in the address electrode 222, thereby extending the first extension in the direction. Sufficient wall charges may be generated around the first igniter electrode 232 and the second igniter electrode 233.

In particular, since the first sustain discharge is generated between the first igniter electrode 232 and the second igniter electrode 233, the extension 222a of the address electrode is formed of the first igniter electrode 232 and the first igniter electrode 232. It is preferable to be disposed so as to correspond to the two igniter electrodes 233. For example, the width W of the extension part 222a of the address electrode (see FIG. 4) may correspond to a gap between the first igniter electrode 232 and the second igniter electrode 233. Of course, many other variations are possible.

The address electrodes 222 as described above may be disposed on a surface of the second substrate 221 in the direction of the first substrate 211. In this case, the address electrodes 222 may be covered to charge particles during discharge. It is preferable to further include a dielectric layer 223 to prevent the collision with the address electrode 222 to damage the address electrode 222. The dielectric layer 223 is preferably formed as a dielectric capable of inducing charged particles. Such dielectrics include PbO, B ₂ O ₃ , SiO _2, and the like.

On the other hand, the phosphor layer 225 is provided inside the discharge cell 226 (see FIG. 6), more specifically, on the upper surface 223a of the dielectric layer and the side surface 224a of the partition wall. The phosphor layer 225 is coated with a phosphor paste of a red light emitting phosphor, a green light emitting phosphor and a blue light emitting phosphor, and a phosphor paste mixed with a solvent and a binder on the upper surface 223a of the dielectric layer and the side surface 224a of the partition wall. It is formed by drying and baking it. Examples of the red light-emitting phosphor include Y (V, P) O ₄ : Eu, and examples of the green light-emitting phosphor include Zn ₂ SiO ₄ : Mn, YBO ₃ : Tb, and the blue light-emitting phosphor includes BAM: Eu.

3 and 6 illustrate that the phosphor layer 225 is disposed on the upper surface 223a of the dielectric layer and the side surface 224a of the partition wall. However, the phosphor layer receives visible light emitted from discharge gas, which will be described later. Since the emission is performed, the position is not limited to the upper surface 223a of the dielectric layer and the side surface 224a of the partition wall, but may be in the discharge cell 226.

In addition, a discharge gas is filled in the discharge cell 226. The discharge gas is, for example, Ne-Xe mixed gas containing 5% to 15% of Xe, and at least a part of Ne may be replaced with He as necessary. Of course, other gases can also be used.

The operation of the plasma display panel having the above configuration will be briefly described as follows.

First, an address voltage Va is applied between one of the first igniter electrode 232 and the second igniter electrode 233 and the address electrode 222 to generate an address discharge, and as a result of the address discharge, a sustain discharge is generated. The discharge cell to occur is selected. Selecting a discharge cell in which sustain discharge is to be performed may cause sustain discharge to occur on the surface of the protective film 216 of the first dielectric layer 215 covering the first igniter electrode 232 and the second igniter electrode 233. Wall charges are accumulated. When the address discharge is completed, cations are accumulated in the region adjacent to the first igniter electrode 232 and electrons are accumulated in the region adjacent to the second igniter electrode 233. Of course, the opposite charge may accumulate.

After the address discharge, when the sustain discharge voltage Vs is applied between the first igniter electrode 232 and the second igniter electrode 233 of the selected discharge cell, the positive ions accumulated in the region adjacent to the first igniter electrode 232. And electrons accumulated in the region adjacent to the second igniter electrode 233 move to cause sustain discharge. The sustain discharge is diffused into sustain discharge between the first discharge electrode 212 and the second discharge electrode 213. As the sustain discharge progresses, the discharge sustain voltage Vs is applied backward between the first discharge electrode 212 and the second discharge electrode 213.

During the sustain discharge, the energy level of the discharge gas increases, and ultraviolet rays are emitted from the discharge gas while the energy level of the discharge gas changes from the high energy level to the low energy level. This ultraviolet light raises the energy level of the phosphor contained in the phosphor layer 225 disposed in the discharge cell 226. The visible light is emitted while the energy level of the phosphor transitions from the high energy level to the low energy level. In this way, an image is implemented on the panel of the plasma display by the visible light emitted from the respective discharge cells 226.

By taking the above structure, the discharge voltage of the plasma display panel can be lowered, the discharge efficiency can be improved, and the light emission efficiency can be increased.

7 is a cross-sectional view schematically showing a modification of the plasma display panel according to the embodiment described above. Referring to FIG. 7, the width of the extension 222a of the address electrode is larger than that shown in FIG. 6.

As described above, the sustain discharge initiated between the first igniter electrode 232 and the second igniter electrode 233 should ultimately be diffused into the discharge between the first discharge electrode 212 and the second discharge electrode 213. Light of desired luminance is generated through the discharge. Therefore, the sustain discharge initiated between the first igniter electrode 232 and the second igniter electrode 233 is enlarged to the sustain discharge between the first discharge electrode 212 and the second discharge electrode 213. It is important. To this end, it is preferable that the extension portion 222a of the address electrode corresponds to the first discharge electrode 212 and the second discharge electrode 213. For example, the width of the extension portion 222a of the address electrode may correspond to the interval between the first discharge electrode 212 and the second discharge electrode 213.

During the sustain discharge time, the address electrode 222 has the lowest potential among the electrodes provided in each discharge cell, so that the shape of the electric field is spread along the address electrode 222. Since the sustain discharge is spread along the shape of the electric field, the first igniter is made to correspond to the first discharge electrode 212 and the second discharge electrode 213 by extending the extension portion 222a of the address electrode. The sustain discharge initiated between the electrode 232 and the second igniter electrode 233 may be easily diffused into the sustain discharge between the first discharge electrode 212 and the second discharge electrode 213. This will ensure the discharge stability and the like.

8 is a plan view schematically showing a modification of the arrangement of the electrodes and the partition walls of the plasma display panel according to the above-described embodiment.

Referring to FIG. 8, the cross-sectional area of the first protrusion 212b of the first discharge electrode 212 is increased toward the igniter electrode 234. Of course, the cross-sectional area of the second protrusion 213b of the second discharge electrode 213 also becomes wider toward the igniter electrode 234. This causes the area of the edge region of the discharge cell of the first protrusion 212b and the second protrusion 213b to be small, thereby partitioning the walls 224 of the first protrusion 212b and the second protrusion 213b. This is to reduce the amount of unnecessarily accumulated charge in the portion adjacent to. Through this, it is possible to reduce the effects of unnecessary accumulation of charges on the generation and destruction of charges. In addition, since the charges are concentrated in the central portion of the discharge cell, it is possible to improve the discharge efficiency.

9 is a cross-sectional view schematically showing a modification of the plasma display panel according to the embodiment described above.

As described above, the contrast may be improved by including a black additive in the bus electrodes 212a and 213a or by having the multilayer structure including a layer formed of a black material in the bus electrodes 212a and 213a. . In this case, the bus electrodes 212a and 213a may be disposed in the non-discharge area on the partition wall 224. In this case, when the discharge electrodes 212, 213 have transparent portions 212a, 212b, 213a, 213b and bus electrodes 212a, 213a, the bus electrodes 212a, 213a are transparent portions. It may be arranged at one edge of the fields (212a, 212b, 213a, 213b).

10 is a plan view schematically showing a modification of the form of a partition wall provided in the plasma display panel, in particular, the plasma display panel according to the above-described embodiment.

Referring to FIG. 10, the partition wall 224 is formed to surround each discharge cell 226, and each discharge cell 226 is defined by a partition wall between at least one discharge cell among neighboring discharge cells. The non-discharge space 226a is provided. As described above, the non-discharge space 226a is provided between the discharge cells 226 so that heat generated during the driving of the plasma display panel through the non-discharge space 226a can be easily discharged to the outside.

According to the plasma display panel of the present invention made as described above, the following effects can be obtained.

First, since the igniter electrode is provided between the discharge electrode pairs, it is possible to manufacture a plasma display panel capable of low voltage driving and improved luminous efficiency.

Second, wall charges generated during the address discharge are uniformly formed on the entire discharge electrode pairs by providing an extension in the direction in which the discharge electrode pair extends and the opposite direction in an area where the address electrode crosses the discharge electrode pair. You can do that.

Third, in the region where the address electrode intersects with the discharge electrode pair, an extension part is provided in a direction in which the discharge electrode pair extends and the opposite direction, and the width of the extension part corresponds to a gap between the electrodes provided in the igniter electrode. The initial sustain discharge between the igniter electrodes can be smoothly performed.

Fourth, in an area where the address electrode crosses the discharge electrode pair, an extension part is provided in a direction in which the discharge electrode pair extends and the opposite direction, and the width of the extension part corresponds to a gap between the electrodes provided in the discharge electrode pair. As a result, the sustain discharge by the igniter electrode can be easily diffused into the sustain discharge between the electrodes provided in the pair of discharge electrodes, thereby ensuring higher discharge stability.

Although the present invention has been described with reference to the embodiments shown in the drawings, these are merely exemplary, and those skilled in the art will understand that various modifications and equivalent other embodiments are possible. Therefore, the true technical protection scope of the present invention will be defined by the technical spirit of the appended claims.

Claims (16)

A first substrate and a second substrate disposed to face each other; Barrier ribs disposed between the first substrate and the second substrate and defining discharge cells in which discharge occurs together with the first substrate and the second substrate; A plurality of pairs of discharge electrodes extending in one direction to correspond to the respective discharge cells and having a first discharge electrode and a second discharge electrode disposed to be spaced apart from each other; At least one igniter electrode corresponding to each of the discharge cells and disposed between the first discharge electrode and the second discharge electrode of each discharge electrode pair; A plurality of address electrodes disposed to intersect the discharge electrode pairs and having an extension part extending in a direction in which the discharge electrode pairs extend and an opposite direction in an area crossing the discharge electrode pairs; A phosphor layer disposed in the discharge cell; And And a discharge gas in the discharge cell. The method of claim 1, And the igniter electrode comprises a first igniter electrode electrically connected to the first discharge electrode, and a second igniter electrode electrically connected to the second discharge electrode. The method of claim 2, And the extension part of the address electrode is disposed to correspond to the first igniter electrode and the second igniter electrode. The method of claim 1, And the extension part of the address electrode is disposed to correspond to the first discharge electrode and the second discharge electrode. The method of claim 1, And the discharge electrode pairs are disposed on a surface of the first substrate in a direction of the second substrate. The method of claim 1, And a first dielectric layer covering the discharge electrode pairs. The method of claim 6, And a passivation layer covering at least a portion of the first dielectric layer. The method of claim 1, And a first discharge electrode of each pair of discharge electrodes includes at least one first protrusion projecting toward the igniter electrode. The method of claim 8, And the cross-sectional area of the first protrusion widens toward the igniter electrode. The method of claim 1, And the second discharge electrode of each pair of discharge electrodes includes at least one second protrusion protruding toward the igniter electrode. The method of claim 10, And the cross-sectional area of the second protrusion widens toward the igniter electrode. The method of claim 1, And each of the first and second discharge electrodes of the pair of discharge electrodes further comprises a bus electrode. The method of claim 12, And the bus electrode is disposed in a non-discharge area on the partition wall. The method of claim 1, And the address electrodes are disposed on a surface of the second substrate in a direction of the first substrate. The method of claim 1, And a second dielectric layer covering the address electrodes. The method of claim 1, And the partition wall is formed to surround each discharge cell, and each discharge cell has a non-discharge space defined by the partition wall between at least one of the neighboring discharge cells.

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