KR100615313B1 - Plasma display panel and method for manufacturing the same - Google Patents

Abstract

An object of the present invention is to increase the space utilization of the entire discharge cell, to lower the initial discharge start voltage, to increase the transmittance of visible light to increase the brightness, and to prevent permanent afterimage, and a plasma display panel To provide a method of manufacturing a plasma display panel that can eliminate the problems caused by the error of the alignment process in the manufacturing process. To this end, the present invention, (a) forming a plurality of dielectric layers at predetermined intervals on the front substrate; (b) forming an X electrode and a Y electrode on top of each dielectric layer formed in step (a); (c) further forming a dielectric layer to cover each of the X and Y electrodes; (d) forming an address electrode on top of each dielectric layer formed in step (c); (e) further forming a dielectric layer to cover each address electrode formed in step (d); (f) forming a phosphor layer on walls of each of the discharge cells partitioned by dielectric layers comprising the X electrode, the Y electrode and the address electrode and the front substrate; And (g) sealing the rear substrate to block the discharge cells of the completed front panel through the step (f), exhausting the impurity gas therein, and then filling the discharge cells with discharge gas necessary for discharge. It provides a plasma display panel manufacturing method and a plasma display panel produced thereby.

Description

Plasma display panel and method for manufacturing the same

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

2 is a partially cutaway perspective view of the plasma display panel according to the present invention.

3 is a cross-sectional view taken along a plane in which the X and Y electrodes are disposed.

4 is a perspective view showing the relative arrangement of the discharge electrodes shown in FIGS. 2 and 3.

FIG. 5 is a cross-sectional view taken along line V-V of FIG. 3 as a cross-sectional view of the discharge cell of the plasma display panel shown in FIGS.

6A through 6H are cross-sectional views sequentially illustrating a method of manufacturing a plasma display panel according to an embodiment of the present invention.

<Description of Symbols for Major Parts of Drawings>

200: plasma display panel 210: front substrate

220: back substrate 230: dielectric layer

231: first dielectric layer 232: second dielectric layer

240: X electrode 250: Y electrode

260: address electrode 270: protective film layer

290: phosphor layer 310: discharge cell

311: first corner 312: second corner

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a plasma display panel and a method of manufacturing the same, and more particularly, to increase the space utilization of the entire discharge cell, to lower the initial discharge start voltage, to increase the transmittance of visible light, to increase luminance, and to provide permanent afterimage The present invention relates to a plasma display panel capable of preventing a plasma display panel and a method of manufacturing the plasma display panel capable of eliminating a problem caused by an error in an alignment process in the process of manufacturing the plasma display panel.

In general, a plasma display panel injects a discharge gas between two substrates on which a plurality of discharge electrodes are formed, and discharges the discharge, and excites the fluorescent material of the phosphor layer by the ultraviolet rays generated thereby to implement desired numbers, letters, or graphics. A flat display device is referred to.

1 is a partially separated perspective view illustrating a structure of a conventional plasma display panel.

As shown in FIG. 1, the conventional three-electrode surface discharge plasma display panel 100 includes a front substrate 110 and an X electrode 121 and a Y electrode 122 formed on an inner surface of the front substrate 110. And a front dielectric layer 130 filling the X and Y electrodes 121 and 122, and a protective layer 140 coated on a surface of the front dielectric layer 130. The X electrode 121 may include a first transparent electrode 121a and a first bus electrode 121b connected to the first electrode 121a, and the Y electrode 122 may include a second transparent electrode 122a. And a second bus electrode 122b connected to the second transparent electrode 122a.

In addition, the conventional plasma display panel 100 is formed on the rear substrate 150 disposed to face the front substrate 110 and the inner surface of the rear substrate 150, and the X and Y electrodes 121. An address electrode 160 disposed in a direction intersecting the 122 is formed, and a back dielectric layer 170 filling the address electrode 160 is embedded.

Meanwhile, a partition wall 180 defining a discharge cell is provided between the front and rear substrates 110 and 150, and a phosphor layer of red, green, and blue is formed for each discharge cell inside the partition wall 180. It is applied.

The conventional plasma display panel 100 having the above structure selects a discharge cell by applying an electrical signal to the Y electrode 122 and the address electrode 160, and alternates the X and Y electrodes 121 and 122. By applying an electrical signal, surface discharge occurs from the surface of the front substrate 110 to generate ultraviolet rays, and visible light is emitted from the phosphor layer 190 of the selected discharge cell, thereby realizing a still image or a moving image.

However, the conventional plasma display panel 100 has the following problems.

First, a discharge is started from a gap between the X and Y electrodes 121 and 122 so that discharge is spread to both ends of the X and Y electrodes 121 and 122, and the discharge is the front surface. Since the diffusion along the plane of the substrate 110, the space utilization of the entire discharge cell is low.

Second, when the high concentration of Xe gas is applied to the discharge cell of 10% by volume or more, the ionization and excitation reaction of the atoms increases the generation of charged particles and excitation species, thereby increasing the brightness and discharge efficiency, but applying a high concentration of Xe gas For this reason, there is a disadvantage in that the initial discharge firing voltage is increased.

Third, since the X and Y electrodes 121 and 122, the bus electrode 123, the front dielectric layer 130, and the protective layer 140 are formed on the inner surface of the front substrate 110, the visible light The transmittance is less than 60%, and the luminance is reduced, thereby causing a problem as a high efficiency flat panel display.

Fourth, when the plasma display panel 100 is driven for a long time, since the X and Y electrodes 121 and 121 are disposed on the inner surface of the front substrate 110, the discharge is diffused toward the phosphor layer 190, so that the discharge gas is discharged. The charged particles of cause ion sputtering on the phosphor layer 190 by the electric field, causing permanent afterimages.

Fifth, the process of manufacturing the plasma display panel includes a method of manufacturing a front substrate and a rear substrate, aligning each other, and then suturing them, and aligning the front substrate and the rear substrate having a minute shape. If this is difficult and not correctly aligned, there is a problem that causes a significant drop in the quality of the display panel.

The present invention is to solve the above problems, an object of the present invention can increase the space utilization of the entire discharge cell, lower the initial discharge start voltage, increase the transmittance of visible light to increase the brightness, discharge gas The present invention provides a plasma display panel capable of preventing permanent image retention caused by charged particles of ions sputtering the phosphor layer 190 by an electric field.

In addition, an object of the present invention is to provide a method of manufacturing a new plasma display panel that can eliminate the problems caused by the error of the alignment process in the process of manufacturing the plasma display panel.

An object of the present invention as described above, (a) forming a plurality of dielectric layers at predetermined intervals on the front substrate; (b) forming an X electrode and a Y electrode on top of each dielectric layer formed in step (a); (c) further forming a dielectric layer to cover each of the X and Y electrodes; (d) forming an address electrode on top of each dielectric layer formed in step (c); (e) further forming a dielectric layer to cover each address electrode formed in step (d); (f) forming a phosphor layer on walls of each of the discharge cells partitioned by dielectric layers comprising the X electrode, the Y electrode and the address electrode and the front substrate; And (g) sealing the rear substrate to block the discharge cells of the completed front panel through the step (f), exhausting the impurity gas therein, and then filling the discharge cells with discharge gas necessary for discharge. It is achieved by providing a method of manufacturing a plasma display panel.

In addition, the object of the present invention as described above, (a) forming a plurality of dielectric layers at predetermined intervals on the front substrate; (b) forming an address electrode on top of each dielectric layer formed in step (a); (c) further forming a dielectric layer to cover each address electrode; (d) forming an X electrode and a Y electrode on top of each dielectric layer formed in step (c); (e) further forming a dielectric layer to cover the X electrode and the Y electrode formed in step (d); (f) forming a phosphor layer on walls of each of the discharge cells partitioned by dielectric layers comprising the X electrode, the Y electrode and the address electrode and the front substrate; And (g) sealing the rear substrate to block the discharge cells of the completed front panel through the step (f), exhausting the impurity gas therein, and then filling the discharge cells with discharge gas necessary for discharge. It is achieved by providing a method of manufacturing a plasma display panel.

The address electrode may extend in one direction, and the X electrode and the Y electrode may extend to intersect the address electrode.

Here, the address electrode is preferably formed in the shape of a comb.

Here, the X electrode and the Y electrode is preferably formed in the shape of a comb, and are arranged to form a ladder shape together.

Here, the step (e) and the step (f) preferably further comprises a step of forming a protective film layer covering at least a portion of the dielectric layer formed in the step (a), step (c) and step (e). .

Here, the protective film layer is preferably formed on the side of the dielectric layer formed in the step (a), step (c) and step (e).

In addition, the object of the present invention as described above, the front substrate; A rear substrate disposed to face the front substrate; A dielectric layer disposed between the front substrate and the rear substrate and defining discharge cells together with the front and rear substrates; An X electrode embedded in the dielectric layer and disposed to surround the first edge of the discharge cell; A Y electrode embedded in the dielectric layer and disposed to surround a first corner portion and a second corner portion in a diagonal direction; An address electrode embedded in the dielectric layer and disposed in a direction crossing the Y electrode; And a red, green, and blue phosphor layer coated in the discharge cell.

Here, the X electrode extends along one direction of the adjacent discharge cells, and the Y electrode extends from the opposite side of the discharge cell where the X electrode is disposed along a direction parallel thereto.

Herein, the X electrode preferably includes a strip-shaped X electrode line and an X electrode protrusion protruding from the X electrode line in a direction in which the Y electrode is disposed to surround the first corner of the discharge cell together with the X electrode line. Do.

Here, the Y electrode preferably includes a strip-shaped Y electrode line and a Y electrode protrusion protruding from the Y electrode line in a direction in which the X electrode is disposed to surround the second corner of the discharge cell together with the Y electrode line. Do.

Here, the X and Y electrodes are preferably comb-shaped alternately arranged from opposite sides of the discharge cell.

The address electrode may be disposed in a direction parallel to the direction in which the Y electrode protrusion is disposed.

The address electrode may further include an address electrode protrusion which protrudes in parallel with the Y electrode line.

Here, the address electrode is preferably in the shape of a comb arranged in a direction crossing the Y electrode.

Here, it is preferable that the X and Y electrodes are disposed on the same plane, and the address electrode is disposed on one of the upper and lower portions of the X and Y electrodes.

Hereinafter, with reference to the accompanying drawings will be described an embodiment of the present invention;

2 is a partially cutaway perspective view of the plasma display panel 200 according to the present invention.

As shown in FIG. 2, the plasma display panel 200 according to the present invention includes a front substrate 210 and a rear substrate 220 disposed in parallel with the front substrate 210. The front and rear substrates 210 and 220 are sealed by frit glass (not shown) along edges of surfaces facing each other, thereby sealing an inner space.

In FIG. 2, the phosphor layer is omitted from essential components in order to show the structure of the plasma display panel according to the present invention.

The front substrate 210 may be made of a transparent substrate, for example, soda lime glass. The back substrate 210 is made of substantially the same material as the front substrate 210.

A dielectric layer 230 is disposed between the front and rear substrates 210 and 220 to define a discharge cell together with the front and rear substrates 210 and 220. The dielectric layer 230 is formed by adding various fillers to glass paste.

The dielectric layer 230 may include a first dielectric layer 231 disposed in the y-axis direction of the front and rear substrates 210 and 220, and a first dielectric layer 231 disposed in the x-axis direction of the front and rear substrates 210 and 220. Two dielectric layers 232 are included. The second dielectric layer 232 extends integrally in a direction opposite from the inner side walls of the pair of adjacent first dielectric layers 231 to define a grid-shaped discharge cell.

In addition, the dielectric layer 230 may have various types of embodiments, such as a meander type, a delta type, a hexagon, or a honeycomb. In addition, the discharge cell defined by the dielectric layer 230 is not limited to any structure as long as it is capable of defining a discharge cell such as a polygon or a circle in addition to a quadrangle.

The X electrode 240, the Y electrode 250, and the address electrode 260 are embedded in the dielectric layer 230. The X electrode 240, the Y electrode 250, and the address electrode 260 are disposed along the circumference of the discharge cell. In addition, since the X and Y electrodes 240 and 250 and the address electrode 260 are electrically insulated from each other, different voltages may be applied.

A material such as magnesium oxide (MgO) is formed on the inner surface of the dielectric layer 230 so that ions generated inside the front substrate 210 along the four sides of the discharge cell may emit secondary electrons by interacting with the surface. A protective film layer 270 is formed. The passivation layer 270 may be coated for each discharge cell, or may be covered to the rear of the dielectric layer as shown.

Meanwhile, discharge gases such as neon (Ne) -xenon (Xe) and helium (He) -xenon (Xe) are formed in the discharge cells defined by the front and rear substrates 210 and 220 and the dielectric layer 230. It is injected.

The X electrode 240 and the Y electrode 250 are arranged to cause opposite discharge in a diagonal direction of the discharge cell, and the Y electrode 250 and the address electrode 260 are disposed up and down. The shape of the electrodes is described in more detail below.

3 is a cross-sectional view taken along a plane in which the X and Y electrodes of FIG. 2 are disposed, and FIG. 4 is a perspective view showing the shape and relative positions of the discharge electrodes shown in FIGS. 2 and 3.

3 and 4, the plasma display panel 200 according to the present invention includes a first dielectric layer 231 disposed in the y-axis direction and a direction opposite to a pair of adjacent first dielectric layers 231. And a second dielectric layer 232 disposed in the x-axis direction. The discharge cells 310 defined by the first and second dielectric layers 231 and 232 have a rectangular shape due to the lattice dielectric layer 230. The rectangular discharge cells 310 are continuously disposed at predetermined intervals along the x-axis and y-axis directions.

The X electrode 240 is buried in the dielectric layer 230. The X electrode 240 is disposed to surround the first corner portion 311 of the discharge cell 310. The Y electrode 250 is embedded in the dielectric layer 230. The Y electrode 250 is disposed to surround the first corner portion 311 and the second corner portion 312 in a diagonal direction. In addition, an address electrode 260 is embedded in the dielectric layer 230 in a direction crossing the Y electrode 250.

The X electrode 240 includes an X electrode line 241 extending along the X direction of an adjacent discharge cell 310. The X electrode line 241 has a strip shape. The X electrode line 241 has a structure in which a single strip is disposed for each first dielectric layer 231.

The X electrode line 241 is integrally connected to the X electrode protrusion 242 protruding along the Y direction of the discharge cell 310, which is the direction in which the Y electrode 250 is disposed. The length of the X electrode protrusion 242 corresponds to the side of the discharge cell 310. At least one X electrode protrusion 242 is positioned for each of the second dielectric layers 232.

As such, the X electrode 240 has a structure surrounding the first edge 311 of the discharge cell 310 due to the coupling of the X electrode line 241 and the X electrode protrusion 242 integrally extending therefrom. . In addition, the combined structure of the X electrode line 241 and the X electrode protrusion 242 has a comb type. Alternatively, the X electrode 240 is not limited to a comb shape as long as it has a structure surrounding the first edge portion 311.

The Y electrode 250 includes a Y electrode line 251 extending along a direction parallel to the X electrode 240 from an opposite side of the discharge cell 310 in which the X electrode 240 is disposed. have. The Y electrode line 251 is paired for each of the X electrode lines 241 and the discharge cells 310 causing the sustain discharge, and is disposed opposite the portion where the X electrode lines 241 are disposed. The Y electrode line 251 has a strip shape. In the Y electrode line 251, a single strip is disposed for each first dielectric layer 231. As described with reference to the discharge cells 310 continuously disposed in the X and Y directions of the substrate, the single first dielectric layer 231 has an X electrode line 241 and a Y electrode line associated with different discharge cells 310. 251 is disposed.

The Y electrode protrusion 252 protruding along the Y direction of the discharge cell 310, which is the direction in which the X electrode 240 is disposed, is integrally connected to the Y electrode line 251. The length of the Y electrode protrusion 252 corresponds to the side of the discharge cell 310. At least one Y electrode protrusion 252 is positioned for each of the second dielectric layers 252.

As such, the Y electrode 250 has a structure surrounding the second corner portion 312 of the discharge cell 310 due to the coupling of the Y electrode line 251 and the Y electrode protrusion 252 integrally extending therefrom. . The second corner portion 312 is a portion diagonally opposite to the first corner portion 311 surrounded by the X electrode 240. In addition, the combined structure of the Y electrode line 251 and the protruding Y electrode protrusion 252 has a comb shape.

Alternatively, the X electrode 240 may be disposed to surround both corners of one side of the discharge cell 310, and the Y electrode 250 may be disposed to surround both corners of the other side of the discharge cell 310. It is not limited to one shape.

In addition, the X and Y electrodes 240 and 250 are alternately arranged with the X electrode protrusion 242 and the Y electrode protrusion 252 in a comb shape from opposite sides of the discharge cell 310.

The address electrode 260 is disposed on the upper end of the Y electrode 250. The address electrode 260 is in a direction crossing the Y electrode line 251 and is arranged along the Y direction of the discharge cell 310 in a direction parallel to the direction in which the Y electrode protrusion 252 is disposed. 261). The address electrode line 261 is strip-shaped and is formed to extend adjacent discharge cells 310. One address electrode line 261 is positioned for each of the second dielectric layers 232.

The address electrode protrusion 262 may be integrally connected to the address electrode line 261. The address electrode protrusion 262 is disposed in the X direction of the discharge cell 310 that is parallel to the Y electrode line 251. The address electrode protrusion 262 is disposed at a position corresponding to the Y electrode line 251.

As described above, due to the combination of the address electrode line 261 and the address electrode protrusion 262, the address electrode 260 is disposed in a comb shape in a direction crossing the Y electrode 250.

The X electrode 240, the Y electrode 250, and the address electrode 260 are disposed along the circumference of the discharge cell 310, not inside the discharge cell 310, and thus are not related to the aperture ratio. The paste may be formed using a metal material having excellent conductivity such as Ag paste or chromium-copper-chromium (Cr-Cu-Cr).

FIG. 5 is a cross-sectional view taken along the line V-V of FIG. 3.

As illustrated in FIG. 5, red, green, and blue phosphor layers 290 that are excited by ultraviolet rays generated from the discharge gas and emit visible light are formed in the discharge cells. In this case, the phosphor layer 290 may be coated anywhere in the discharge cell, but in the present embodiment, the phosphor layer 290 is coated with a predetermined thickness on the inner wall of the barrier rib 280 and the upper surface of the rear substrate 220.

The red, green, and blue phosphor layers 290 are coated for each discharge cell. It is preferable that the red phosphor layer consists of (Y, Gd) BO3; Eu + 3, the green phosphor layer consists of Zn2SiO4: Mn2 +, and the blue phosphor layer consists of BaMgAl10O17: Eu2 +.

Hereinafter, the operation of the plasma display panel 200 having the above structure will be described in more detail.

First, when a predetermined pulse voltage is applied between the address electrode 260 and the Y electrode 250 from an external power source, the discharge cell 310 to emit light is selected. Wall charges are accumulated on the inner surface of the selected discharge cell 310.

In this case, the address electrode 260 and the Y electrode 250 are vertically disposed in the dielectric layer 230, and the address electrode line 261 and the Y electrode protrusion 252 are in the Y direction of the discharge cell 310. The address electrode protrusion 262 and the Y electrode line 251 are arranged side by side along the X direction of the discharge cell 310.

As described above, as the distance between the address electrode 260 and the Y electrode 250 becomes short, the pulse voltage applied between the address electrode 260 and the Y electrode 250 may cause the address electrode 260 on the rear substrate 220. It can be lower than the conventional case disposed in the. In addition, the addressing speed between the address electrode 260 and the Y electrode 250 is increased.

Subsequently, when a voltage of “+” is applied to the X electrode 240 and a voltage higher than this is applied to the Y electrode 250, the wall is formed by the voltage difference applied between the X and Y electrodes 240 and 250. The charge will move.

In this case, the X electrode line 241 and the X electrode protrusion 242 protruding therefrom surround the first corner portion 311 of the discharge cell 310, and the Y electrode line 251 and the Y electrode protruding therefrom. The protrusion 252 surrounds the first corner portion 311 and the second corner portion 312 in a diagonal direction.

The movement of the wall charges causes a discharge while colliding with the discharge gas atoms in the discharge cell 310 to generate a plasma, which discharges the edges 311 and 312 of the discharge cell 310 in which a relatively strong electric field is formed. Starting from the enlarged direction in the center of the discharge cell 310.

In this manner, after the discharge is formed, if the voltage difference between the X and Y electrodes 240 and 250 becomes lower than the discharge voltage, the discharge no longer occurs, and the space charge and the wall charge are discharged to the discharge cell 310. Is formed. At this time, if the polarities of the voltages applied to the X and Y electrodes 240 and 250 are changed to each other, the discharge is generated again with the help of the wall charge. If the polarities of the X and Y electrodes 240 and 250 are immediately changed, the first discharge process is repeated. The discharge is stably generated while repeating this process.

In this case, the ultraviolet rays generated by the discharge excite the fluorescent material of the phosphor layer 290 applied to each discharge cell 310. Through this process, visible light is obtained. The generated visible light is emitted to the discharge cells 310 to implement a still image or a moving picture.

Hereinafter, a method of manufacturing a plasma display panel according to the present invention will be described.

6A to 6H are diagrams sequentially illustrating a method of manufacturing a plasma display panel according to the present invention.

First, as shown in FIG. 6A, a dielectric layer 230a is formed to a predetermined thickness on a front substrate 210 made of glass such as soda lime glass. The dielectric layer 230a is formed by adding various fillers to glass paste. Next, as shown in FIG. 6B, the X electrode 240 and the Y electrode 250 are formed. At this time, the X electrode 240 and the Y electrode 260 is formed of a conductive metal such as aluminum, copper, etc., as shown in FIGS. 3 and 4, the two electrodes together to form a ladder shape. The X electrode 240 and the Y electrode 250 are preferably formed using a photoetching method, a photosensitive paste method, a printing paste method, or the like.

After the X electrode 240 and the Y electrode 250 are formed, as shown in FIG. 6C, a dielectric layer 230b is further formed to fill the X electrode 240 and the Y electrode 250. In this case, the dielectric layer 230b may be formed using a printing method or a dry film method.

The dielectric layer 230b is formed of a dielectric material that prevents cations or electrons from colliding with the electrode and damages the electrode at the time of discharge and at the same time induces charge. Such dielectrics include PbO, B 2 O 3, SiO 2, and the like.

Next, as shown in FIG. 6D, an address electrode 260 is formed on the dielectric layer 230b. In this case, the address electrode 260 may be formed using a photoetching method, a printing method, or the like, and extends in one direction as shown in FIGS. 3 and 4 to partition each discharge cell. It is formed in the shape of a comb having a protruding portion along the.

These address electrodes 260 are intended to cause an address discharge to facilitate sustain discharge between the X electrode 240 and the Y electrode 250, and more specifically, serve to lower a voltage at which sustain discharge is initiated. The address discharge is a discharge occurring between the scan electrode and the address electrode. When the address discharge is completed, positive ions accumulate on the scan electrode side and electrons accumulate on the common electrode side, thereby making it easier to sustain discharge between the scan electrode and the common electrode. .

Next, as shown in FIG. 6E, a dielectric layer 230c is further formed to cover the address electrode 260. Next, as shown in FIG. 6F, the passivation layer 270 is formed on the outer surface of the dielectric layers 230a, 230b, and 230c. The passivation layer 270 may be made of MgO. Although the process of forming the passivation layer 270 is not essential, it is preferable to form the protective film layer 270 because it functions to prevent the charged particles from colliding with the dielectric layer 230 formed of the dielectric material. The passivation layer 270 may be formed using a sputtering method or the like.

After the passivation layer 270 is formed, the phosphor layer 290 is formed on the front substrate side of the discharge cell partitioned by the dielectric layer 230 and the front substrate 210. The phosphor layer 290 is a component that generates ultraviolet light by receiving ultraviolet rays. The phosphor layer formed on the red light emitting subpixel includes phosphors such as Y (V, P) O4: Eu, and the like, and is formed on the green light emitting subpixel. The layer includes phosphors such as Zn 2 SiO 4: Mn, YBO 3: Tb and the like, and the phosphor layer formed on the blue light emitting subpixel includes phosphors such as BAM: Eu and the like. The phosphor layer 290 may be formed by various methods, but it is preferable to use a pattern printing method, a photosensitive paste method, or a dry film method. The phosphor layer 290 receives ultraviolet rays emitted by the discharge between the X electrode 240 and the Y electrode 250 to emit visible light. The phosphors are not limited to the above-described phosphors, and various phosphors may be selected and used.

After the phosphor layer is formed, as shown in FIG. 6H, the front substrate 210 is turned upside down, disposed substantially parallel to the back substrate made of the same or similar material as that of the front substrate, and both substrates are sealed. . The front and rear substrates 210 and 220 are sealed by frit glass (not shown) along edges of surfaces facing each other, thereby sealing an inner space.

When the sealing is completed, the shape of the plasma display panel including a plurality of discharge cells as shown in FIG. 6H is completed, and the gas in the discharge cells is exhausted and the discharge gas is sealed in the space. In the case of the plasma display panel manufactured according to the present embodiment, the discharge surface can be increased and the discharge region can be enlarged, so that the amount of plasma formed is increased, thereby enabling low voltage driving. Therefore, a high concentration of Xe gas can be sealed in the discharge cell.

On the other hand, unlike the above description, the step of forming the address electrode is different from the step of forming the X electrode and the Y electrode, it is also possible to position the address electrode in front of the final plasma display panel.

The front substrate 210 is made of a material having good light transmittance such as glass, and the front substrate 210 has an indium tin oxide present in the front substrate of a conventional plasma display panel as shown in FIG. 1. Since the scan electrode 121 formed of the film, the common electrode 122, and the dielectric layer 130 covering the electrodes 121 and 122 form a partition, the front transmittance of visible light is remarkably improved. Therefore, if the image is implemented at the luminance of the conventional level, the electrodes 121 and 122 are driven at a relatively low voltage, thereby improving the luminous efficiency.

In the method of manufacturing the plasma display panel 200 according to the present invention, since the dielectric layer 230 and the electrodes formed on the front substrate form a partition wall, an alignment for sealing the rear panel after the process of the front panel is performed. alignment process is unnecessary. Therefore, the problem of alignment due to the assembly process error of the front panel and the rear panel does not occur fundamentally.

As described above, the plasma display panel having the improved structure of the discharge electrode of the present invention can obtain the following effects.

First, the discharge is implemented along the side of the discharge cell, so that the discharge surface is greatly enlarged.

Second, as the discharge electrode, the dielectric layer, or the protective film layer are not formed on the inner surface of the substrate through which visible light is transmitted, the aperture ratio is greatly improved.

Third, since the discharge is generated from the edge of the discharge cell and diffused to the center, the discharge efficiency is increased, and the path of the ion particles is formed in the horizontal direction of the phosphor layer during the sustain discharge, thereby preventing ion sputtering of the phosphor layer and thus lifespan. Can be improved.

Fourth, since the Y electrode and the address electrode are buried together in the vicinity of the dielectric layer, the distance can be shortened to enable low voltage driving and high speed addressing.

Fifth, the alignment process is unnecessary in the process of manufacturing the plasma display panel, so that the problem due to the alignment error does not fundamentally occur.

Although the present invention has been described with reference to the embodiments shown in the drawings, this is merely exemplary, and it will be understood by those skilled in the art 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) forming a plurality of dielectric layers on the front substrate at predetermined intervals; (b) forming an X electrode and a Y electrode on top of each dielectric layer formed in step (a); (c) further forming a dielectric layer to cover each of the X and Y electrodes; (d) forming an address electrode on top of each dielectric layer formed in step (c); (e) further forming a dielectric layer to cover each address electrode formed in step (d); (f) forming a phosphor layer on walls of each of the discharge cells partitioned by dielectric layers comprising the X electrode, the Y electrode and the address electrode and the front substrate; And (g) sealing the rear substrate to block the discharge cells of the completed front panel through step (f), exhausting the impurity gas therein, and then filling the discharge cells with discharge gas necessary for discharge; Method of manufacturing a plasma display panel. (a) forming a plurality of dielectric layers on the front substrate at predetermined intervals; (b) forming an address electrode on top of each dielectric layer formed in step (a); (c) further forming a dielectric layer to cover each address electrode; (d) forming an X electrode and a Y electrode on top of each dielectric layer formed in step (c); (e) further forming a dielectric layer to cover the X electrode and the Y electrode formed in step (d); (f) forming a phosphor layer on walls of each of the discharge cells partitioned by dielectric layers comprising the X electrode, the Y electrode and the address electrode and the front substrate; And (g) sealing the rear substrate to block the discharge cells of the completed front panel through step (f), exhausting the impurity gas therein, and then filling the discharge cells with discharge gas necessary for discharge; Method of manufacturing a plasma display panel. The method according to claim 1 or 2, And the address electrode extends in one direction, and the X electrode and the Y electrode extend to intersect the address electrode. The method according to claim 1 or 2, And the address electrode is formed in the shape of a comb. The method according to claim 1 or 2, The X electrode and the Y electrode is formed in the shape of a comb, the method of manufacturing a plasma display panel, characterized in that arranged to form a ladder shape. The method according to claim 1 or 2, Between the step (e) and the step (f) further comprises the step of forming a protective film layer covering at least a portion of the dielectric layer formed in the step (a), step (c) and step (e) Method for manufacturing a display panel. The method of claim 6, The protective film layer is a method of manufacturing a plasma display panel, characterized in that formed on the side of the dielectric layer formed in the step (a), step (c) and step (e). Front substrate; A rear substrate disposed to face the front substrate; A dielectric layer disposed between the front substrate and the rear substrate and defining discharge cells together with the front and rear substrates; An X electrode embedded in the dielectric layer and disposed to surround the first edge of the discharge cell; A Y electrode embedded in the dielectric layer and disposed to surround a first corner portion and a second corner portion in a diagonal direction; An embedding electrode embedded in the dielectric layer and disposed in a direction crossing the Y electrode; And And a red, green, and blue phosphor layer coated in the discharge cell. The method of claim 8, The X electrode extends along one direction of an adjacently disposed discharge cell, and the Y electrode extends along a direction parallel to the opposite side of the discharge cell on which the X electrode is disposed; . The method of claim 9, The X electrode includes a strip-shaped X electrode line and an X electrode protrusion protruding from the X electrode line in a direction in which the Y electrode is disposed to surround the first corner of the discharge cell together with the X electrode line. Plasma display panel. The method of claim 9, The Y electrode includes a strip-shaped Y electrode line and a Y electrode protrusion protruding from the Y electrode line in a direction in which the X electrode is disposed to surround the second corner of the discharge cell together with the Y electrode line. Plasma display panel. The method of claim 9, And the X and Y electrodes have a comb shape alternately arranged from opposite sides of the discharge cell. The method according to any one of claims 9 to 12, And the address electrode is disposed in a direction parallel to a direction in which the Y electrode protrusion is disposed. The method of claim 13, And the address electrode further includes an address electrode protrusion protruding in a direction parallel to the Y electrode line. The method of claim 14, And the address electrode has a comb shape disposed in a direction crossing the Y electrode. The method of claim 8, And the X and Y electrodes are disposed on the same plane, and the address electrodes are disposed on either one of upper and lower portions of the X and Y electrodes.

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