KR100747319B1 - Plasma Display Panel - Google Patents

Abstract

The present invention relates to a plasma display panel, and more particularly, to a plasma display panel having improved structures of a front panel and a rear panel of the plasma display panel.

The plasma display panel according to the present invention includes a front panel having a front glass and a rear panel formed to face the front panel, and a plurality of address electrodes and a plurality of address electrodes formed on the rear glass formed to face the front glass. It includes a lower dielectric layer formed to cover the electrode and a plurality of partitions located on the lower dielectric layer formed to partition the discharge cells, characterized in that at least one scan electrode and the sustain electrode is formed in the plurality of partitions.

Plasma Display Panel, Front Glass, Rear Glass, Address Electrode, Lower Dielectric Layer, Bulkhead, Scan Electrode, Sustain Electrode

Description

Plasma Display Panel

1 is a perspective view schematically showing the structure of a conventional plasma display panel.

FIG. 2 is a view illustrating an electric field path in which an electric field is formed between a scan electrode and a sustain electrode provided in the plasma display front panel of FIG. 1.

3 is a view illustrating in detail the address electrode provided in the plasma display rear panel shown in FIG.

4 is a diagram showing a plasma display front panel and a rear panel as a first embodiment according to the present invention;

FIG. 5 is a diagram illustrating an electric field path in which an electric field is formed between a scan electrode and a sustain electrode provided in the plasma display front panel of FIG. 4.

FIG. 6 is a diagram illustrating in more detail an address electrode and a protruding electrode provided in the plasma display rear panel shown in FIG. 4.

7 shows a plasma display front panel and a back panel as a second embodiment according to the present invention;

FIG. 8 is a view showing an electric field path in which an electric field between a scan electrode and a sustain electrode provided in the plasma display front panel shown in FIG. 7 is formed;

FIG. 9 illustrates an address electrode and a protruding electrode provided in the plasma display rear panel of FIG. 7 in more detail.

10 illustrates a plasma display front panel and a back panel as a third embodiment according to the present invention.

FIG. 11 is a view illustrating an electric field path in which an electric field is formed between a scan electrode and a sustain electrode provided in the plasma display front panel of FIG. 10;

12 is a perspective view showing in more detail a rear panel including an address electrode and a protrusion electrode shown in FIG.

The present invention relates to a plasma display panel, and more particularly, to a plasma display panel having improved structures of a front panel and a rear panel of the plasma display panel.

In general, a plasma display panel is a partition wall formed between a front substrate and a rear substrate to form a unit cell, and each cell includes neon (Ne), helium (He), or a mixture of neon and helium (Ne + He) and An inert gas containing the same main discharge gas and a small amount of xenon is filled. When discharged by a high frequency voltage, the inert gas generates vacuum ultraviolet rays and emits phosphors formed between the partition walls to realize an image. Such a plasma display panel has a spotlight as a next generation display device because of its thin and light configuration.

1 is a perspective view schematically showing the structure of a conventional plasma display panel. As shown in FIG. 1, a plasma display panel includes a front substrate in which a plurality of sustain electrode pairs formed by pairing a scan electrode 102 and a sustain electrode 103 are formed on a front glass 101, which is a display surface on which an image is displayed. The rear substrate 110 having the plurality of address electrodes 113 arranged to intersect the plurality of sustain electrode pairs on the back glass 111 forming the back surface 100 and the rear surface is coupled in parallel with a predetermined distance therebetween. .

The front panel 100 is made of a scan electrode 102 and a sustain electrode 103, that is, a transparent electrode (a) formed of a transparent ITO material and a metal material to mutually discharge and maintain light emission of the cells in one discharge cell. The scan electrode 102 and the sustain electrode 103 provided as the bus electrode b are included in pairs. Here, a metal material such as silver (Ag) constituting the bus electrode is not known to transmit light due to discharge, and reflects external light, thereby causing a problem of poor contrast. In order to solve this problem, a black layer (not shown) is formed between the transparent electrode a and the bus electrode b to improve contrast. The scan electrode 102 and the sustain electrode 103 are covered by one or more upper dielectric layers 104 that limit the discharge current and insulate the electrode pairs, and to facilitate the discharge conditions on the upper dielectric layer 104 top surface. A protective layer 105 on which magnesium oxide (MgO) is deposited is formed.

The rear panel 110 is arranged such that a plurality of discharge spaces, that is, barrier ribs 112 of a stripe type (or well type) for forming discharge cells are maintained in parallel. In addition, a plurality of address electrodes 113 for performing address discharge to generate vacuum ultraviolet rays are disposed in parallel with the partition wall 112. On the upper side of the rear panel 110, R, G, and B phosphors 114 which emit visible light for image display during address discharge are coated. A lower dielectric layer 115 is formed between the address electrode 113 and the phosphor 114 to protect the address electrode 113.

Looking at the front panel of the plasma display panel formed as described above in more detail as shown in FIG.

FIG. 2 is a diagram illustrating an electric field path in which an electric field is formed between a scan electrode and a sustain electrode provided in the plasma display front panel of FIG. 1. First, one example of the conventional plasma display front panel includes a plurality of scan electrodes 201 and sustain electrodes 202 formed on the front glass 200, and the plurality of scan electrodes 201 and sustain electrodes 202 described above. Top dielectric layer 203 is formed. In addition, a protective layer 204 made of MgO is formed on the upper side of the upper dielectric layer 203 described above to facilitate the discharge condition.

Meanwhile, as shown in FIG. 3, in the conventional plasma display rear panel, a plurality of address electrodes 311 are formed on the rear glass 310, and the lower panel covers the plurality of address electrodes 311. Dielectric layer 312 is formed. In addition, a plurality of barrier ribs 313 for partitioning discharge cells are formed on the upper surface of the lower dielectric layer 312, and a phosphor layer 314 is applied to a light emitting space between the plurality of barrier ribs 313. .

However, the plasma display front panel and the rear panel, which are one example described above with reference to FIGS. 2 and 3, are manufactured in a larger size for pursuing high definition, and are used between the scan electrode and the sustain electrode during plasma surface discharge. Increasing the strength of the electric field to be formed, the limit is followed, the address performance is reduced between the scan electrode and the address electrode even during the plasma facing discharge, a problem that the luminous brightness and discharge efficiency is lowered.

In order to solve the above problems, the plasma display panel of the present invention improves the structure of the front panel and the rear panel to provide a plasma display panel that can improve the luminous brightness and discharge efficiency of the plasma display panel during plasma discharge. It is done.

Plasma display panel of the present invention for solving the above technical problem is a front panel provided with a front glass and a rear panel formed to face the front panel is a plurality of rear glass and the rear glass formed to be positioned to face the front glass A lower dielectric layer formed to cover the address electrode and the plurality of address electrodes and a plurality of barrier ribs positioned on the lower dielectric layer to define discharge cells, wherein at least one scan electrode and a sustain electrode are formed in the plurality of barrier ribs; It features.

In addition, a scan electrode is formed inside one of the plurality of partition walls, and a sustain electrode is formed inside the other partition wall formed to partition one discharge cell while being positioned to face one partition wall.

In addition, each of the scan electrode and the sustain electrode is formed in the central portion of the partition wall in the height direction of the partition wall.

In addition, each of the scan electrode and the sustain electrode is formed to correspond to each other in the distance direction between the partition walls.

In addition, the upper dielectric layer is formed on one side of the partition wall provided with the scan electrode and the sustain electrode.

In addition, the upper dielectric layer is formed on one side of the barrier rib, which is linear on one side of the scan electrode and the sustain electrode facing each other.

In addition, the plurality of address electrodes may further include a plurality of protruding electrodes to be close to the scan electrodes.

In addition, the plurality of protruding electrodes are positioned on side surfaces of the plurality of address electrodes, and are connected to the plurality of address electrodes to protrude by a predetermined length in the distance direction between the partition walls.

In addition, the plurality of protruding electrodes may be positioned on the upper surfaces of the plurality of address electrodes and protruded by a predetermined length in a distance direction between the partition walls so as to intersect the plurality of address electrodes.

In addition, the plurality of protruding electrodes are positioned on an upper surface of the lower dielectric layer formed to cover the plurality of address electrodes, and protrude by a predetermined length in a distance direction between the partition walls so as to intersect the plurality of address electrodes.

Hereinafter, with reference to the accompanying drawings will be described in detail a preferred embodiment of the present invention.

<First Embodiment>

4 is a diagram illustrating a plasma display front panel and a rear panel as a first embodiment according to the present invention. First, unlike the plasma display front panel described above with reference to FIG. 1, the plasma display front panel includes only a front glass made of a transparent material, and the rear panel includes a scan electrode, a sustain electrode, and an address electrode. do. The plasma display front panel and the rear panel according to the present invention will be described in more detail with reference to FIG. 4.

As shown in FIG. 4, first, the plasma display front panel according to the present invention includes only the front glass 400 made of a transparent material.

In addition, the rear panel includes a plurality of address electrodes 411 including a plurality of protruding electrodes (not shown) on an upper surface of the rear glass 410, and a lower dielectric layer to cover the plurality of address electrodes 411 described above. 412b is formed. Here, the plurality of address electrodes 411 according to the present invention may include a plurality of protruding electrodes (not shown) to be close to the scan electrode 415. In this case, the plurality of protruding electrodes (not shown) are positioned at the side surfaces of the plurality of address electrodes 411 and connected to the plurality of address electrodes 411 to protrude by a predetermined length in the distance direction between the partition walls 413. Is formed.

In addition, a plurality of partitions 413 are formed on the upper surface of the lower dielectric layer 412b so as to partition discharge cells, and a phosphor layer 414 is formed in a light emitting space between the plurality of partitions 413. Here, at least one scan electrode 415 and a sustain electrode 416 are formed in the plurality of partitions 413 according to the present invention. Preferably, one of the plurality of partitions 413 scans inside the partition wall 413. An electrode 415 is formed, and a sustain electrode 416 is formed inside the other partition wall 415 formed so as to face one of the partition walls 415 described above to partition one discharge cell. More preferably, each of the above-described scan electrode 415 and the sustain electrode 416 are located at the central portion of the partition wall 413 in the height direction of the partition wall 413 to correspond to each other in the distance direction between the partition walls 413. do.

In addition, an upper dielectric layer 412a is formed on one side of the partition wall 413 provided with the scan electrode 415 and the sustain electrode 416. Preferably, the upper dielectric layer 412a is the scan electrode 415 described above. ) And the sustain electrode 416 are formed on one side of the partition wall 413 which is linear on one side facing each other.

As described above, the plasma display panel according to the present invention has a large sized plasma display panel for pursuing high resolution, and is formed between the scan electrode 515 and the sustain electrode 516 during plasma surface discharge. The intensity of the electric field formed is stronger than that of the electric field formed between the scan electrode (201 of FIG. 2) and the sustain electrode (202 of FIG. 2) described above with reference to FIG.

In addition, as shown in FIG. 6, in the plasma display rear panel according to the present invention, the plurality of protruding electrodes 611a are disposed on the plurality of address electrodes 611 so that the plurality of address electrodes 611 are close to the scan electrodes 615. Located at the side surface and protruded by a predetermined length in the distance direction between the partition walls 613, the address performance between the scan electrode 615 and the address electrode 611 at the time of plasma facing discharge is shown in FIG. It is further improved than the display panel, so that the light emission luminance and the discharge efficiency are further increased.

On the other hand, the plasma display panel according to the present invention can improve the structure of the address electrode to further improve the light emission luminance and discharge efficiency, look at another example of the plasma display panel according to the present invention as shown in FIG.

Second Embodiment

7 is a diagram illustrating a plasma display front panel and a rear panel according to a second embodiment of the present invention. First, the plasma display panel according to the present invention is formed in the same manner as the plasma display panel described above with reference to FIG. 4. However, in the rear panel of the plasma display panel according to the present invention, a plurality of protruding electrodes provided in the plurality of address electrodes is formed on the upper surface of the plurality of address electrodes. Such a plasma display panel according to the present invention will be described in more detail with reference to FIG. 7.

As shown in FIG. 7, the plasma display front panel according to the present invention is provided with only the front glass 700 made of a transparent material.

In addition, the rear panel has a plurality of address electrodes 711 including a plurality of protruding electrodes 711a formed on an upper surface of the rear glass 710 and a lower dielectric layer to cover the plurality of address electrodes 711 described above. 712b is formed. Here, the plurality of address electrodes 711 according to the present invention includes a plurality of protruding electrodes 711a to be close to the scan electrode 715. In this case, the plurality of protruding electrodes 711a described above are positioned on the upper surfaces of the plurality of address electrodes 711 to intersect the plurality of address electrodes 711 to protrude by a predetermined length in the distance direction between the partition walls 713. Is formed.

Meanwhile, the plurality of partitions 713, the phosphor layer 714, the scan electrode 715, the sustain electrode 716, and the like, which are formed on the upper surface of the lower dielectric layer 712b, are described with reference to FIG. 4. Since it is formed in the same manner as the panel it will be omitted below.

As described above, the plasma display panel according to the present invention has a large sized plasma display panel for pursuing high definition, and is formed between the scan electrode 815 and the sustain electrode 816 during plasma surface discharge. The intensity of the electric field formed is stronger than that of the electric field formed between the scan electrode (201 of FIG. 2) and the sustain electrode (202 of FIG. 2) described above with reference to FIG.

In addition, as shown in FIG. 9, in the plasma display rear panel according to the present invention, the plurality of protruding electrodes 911a are disposed on the plurality of address electrodes 911 so that the plurality of address electrodes 911 are close to the scan electrodes 915. Since it is formed on the upper surface and protrudes by a predetermined length in the distance direction between the partition walls 913 to intersect with the plurality of address electrodes 911 described above, the scan electrode 915 and the address electrode 911 at the time of plasma facing discharge However, the address performance is further improved than the above-described plasma display panel shown in Fig. 6, so that the light emission luminance and discharge efficiency are further increased.

On the other hand, the plasma display panel according to the present invention can improve the structure of the address electrode to further improve the light emission luminance and discharge efficiency, another example of such a plasma display panel according to the present invention is as follows.

Third Embodiment

FIG. 10 is a diagram illustrating a plasma display front panel and a rear panel as a third embodiment according to the present invention. First, the plasma display panel according to the present invention is formed in the same manner as the plasma display panel described above with reference to FIGS. 4 and 7. However, the rear panel of the plasma display panel according to the present invention is located on the upper surface of the lower dielectric layer formed so that the plurality of protruding electrodes provided on the plurality of address electrodes covers the plurality of address electrodes, and intersects with the plurality of address electrodes described above. It is formed so as to protrude a predetermined length in the distance direction between the partition walls. The plasma display panel according to the present invention will be described in more detail with reference to FIG. 10.

As shown in FIG. 10, the plasma display front panel according to the present invention is provided with only the front glass 1000 made of a transparent material.

In addition, a plurality of address electrodes 1011 are formed on an upper surface of the rear glass 1010 and a first lower dielectric layer 1012b is formed to cover the plurality of address electrodes 1011 described above. In addition, a plurality of protruding electrodes 1011a are formed on an upper surface of the first lower dielectric layer 1012b to be close to the scan electrode 1015, and the second lower dielectric layer 1012c to cover the plurality of protruding electrodes 1011a described above. ) Is formed.

Preferably, the plurality of protruding electrodes 1011a are disposed on an upper surface of the first lower dielectric layer 1012b to cover the plurality of address electrodes 1011, so that the plurality of barrier electrodes 1011a intersect the plurality of address electrodes 1011. 1013 is formed to protrude by a predetermined length in the distance direction.

Meanwhile, the plurality of partitions 1013, the phosphor layer 1014, the scan electrode 1015, the sustain electrode 1016, and the like formed on the upper surface of the second lower dielectric layer 1012c described above are illustrated in FIGS. 4 and 7. Therefore, since it is formed in the same manner as the plasma display panel described above, it will be omitted.

The plasma display panel according to the present invention formed as described above is shown in FIG. 11, in the plasma display panel manufactured to be enlarged in order to pursue high resolution, between the scan electrode 1115 and the sustain electrode 1116 during plasma surface discharge. The intensity of the electric field formed is stronger than that of the electric field formed between the scan electrode (201 of FIG. 2) and the sustain electrode (202 of FIG. 2) described above with reference to FIG.

In addition, as shown in FIG. 12, the plasma display rear panel according to the present invention includes the aforementioned plurality of plasma display devices when the plasma driving is performed on the upper surface close to the scan electrode of the first lower dielectric layer 1212b formed to cover the plurality of address electrodes 1211. The plurality of protruding electrodes 1211a are formed to protrude by a predetermined length in the distance direction between the partition walls 1214 so as to intersect the plurality of address electrodes 1211 so as to be coupled to the plurality of address electrodes 1211. The address performance between the scan electrode 1215 and the address electrode 1211 is further improved than the plasma display panel shown in Fig. 9, so that the light emission luminance and discharge efficiency are further improved.

Those skilled in the art to which the present invention pertains will understand that the present invention can be implemented in other specific forms without changing the technical spirit or essential features. Therefore, the above-described embodiments are to be understood as illustrative and not restrictive in all respects, and the scope of the present invention is indicated by the appended claims rather than the detailed description, and the meaning and scope of the claims and All changes or modifications derived from the equivalent concept should be interpreted as being included in the scope of the present invention.

As described above, the plasma display panel of the present invention has an effect of improving the structure of the front panel and the rear panel to improve the light emission luminance and discharge efficiency of the plasma display panel during plasma discharge.

Claims (10)

A front panel provided with a front glass; A rear panel formed to face the front panel; The rear panel A rear glass formed to face the front glass; A plurality of address electrodes formed on the rear glass; A lower dielectric layer formed to cover the plurality of address electrodes; A plurality of partition walls positioned above the lower dielectric layer and formed to partition a discharge cell; A scan electrode is formed inside one of the plurality of partitions, And a sustain electrode formed inside the other partition wall facing the one partition wall and formed to partition the one discharge cell. delete The method of claim 1, And the scan electrode and the sustain electrode are formed at a central portion of the partition wall in the height direction of the partition wall. The method of claim 3, wherein And the scan electrodes and the sustain electrodes are formed to correspond to each other in the distance direction between the barrier ribs. The method of claim 4, wherein And an upper dielectric layer formed on one side of the partition wall provided with the scan electrode and the sustain electrode. The method of claim 5, And the upper dielectric layer is formed on one side of the partition wall which is linear on one side of the scan electrode and the sustain electrode facing each other. The method of claim 1, The plurality of address electrodes, the plurality of protruding electrode is further provided so as to be close to the scan electrode. The method of claim 7, wherein The plurality of protruding electrodes are positioned on side surfaces of the plurality of address electrodes, And a plurality of address electrodes connected to the plurality of address electrodes so as to protrude by a predetermined length in a distance direction between the partition walls. The method of claim 7, wherein Wherein the plurality of protruding electrodes are disposed on upper surfaces of the plurality of address electrodes and protruded by a predetermined length in a distance direction between the barrier ribs so as to intersect with the plurality of address electrodes. The method of claim 7, wherein The plurality of protruding electrodes are positioned on an upper surface of a lower dielectric layer formed to cover the plurality of address electrodes, and protrude by a predetermined length in a distance direction between the partition walls to intersect the plurality of address electrodes. Plasma display panel.

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