KR100658340B1 - Plasma display panel - Google Patents

Abstract

A plasma display panel is provided to overcome a restriction of height of a barrier rib by improving a structure of a front panel and a rear panel. A rear panel is installed at a predetermined position separated from a front panel. A plurality of barrier ribs(413) are formed to define a discharge space between the front panel and the rear panel. A scan electrode(415) and a sustain electrode(416) are formed inside the barrier rib. An upper dielectric layer(412a) is formed on one side of the barrier ribs including the scan electrode and the sustain electrode. The scan electrode and the sustain electrode are formed with one or more unit layers in a height direction of the barrier ribs.

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 illustrates a plasma display front panel and a back panel according to an embodiment of the present invention.

FIG. 5 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 rear panel of FIG. 4.

6 illustrates a plasma display front panel and a rear panel according to another embodiment of the present invention.

FIG. 7 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 rear panel of FIG. 6.

       (Explanation of symbols for the main parts of the drawing)

       400: front glass 411: address electrode

       412a: upper dielectric layer 412b: lower dielectric layer

       413: partition 414: phosphor layer

       415: scan electrode 416: sustain electrode

       617: bridge electrode

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 which perform address discharge to generate vacuum ultraviolet rays are arranged 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 the plasma display panel is formed 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.

Technical problems to be achieved by the present invention are not limited to the above-mentioned technical problems, and other technical problems not mentioned above will be clearly understood by those skilled in the art from the following description. Could be.

In the plasma display panel according to an embodiment of the present invention for achieving the technical problem, the front panel, the rear panel spaced apart and bonded to the front panel at a predetermined interval, the discharge space is partitioned between the front panel and the rear panel And a plurality of partition walls, and scan electrodes and sustain electrodes formed in the partition walls, and upper dielectric layers formed on one side of the partition walls provided with the scan electrodes and the sustain electrodes.

The scan electrode and the sustain electrode may be formed by forming one or more unit layers in the height direction of the partition wall.

In addition, the scan electrode and the sustain electrode is characterized in that the thickness of 1 to 50 μm.

In addition, the distance between the scan electrode and the sustain electrode formed by forming one or more unit layers in the height direction of the partition wall is characterized in that each 50 to 150 μm.

In addition, a scan electrode is formed inside one of the plurality of partition walls, and a sustain electrode is formed inside another partition wall formed to partition the one discharge cell so as to face the one partition wall. It is done.

The scan electrodes and the sustain electrodes may be 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 which is linear on one side of the scan electrode and the sustain electrode facing each other.

In the plasma display panel according to an embodiment of the present invention, a front panel, a rear panel spaced apart from the front panel and bonded to each other, a plurality of partition walls for partitioning a discharge space between the front panel and the rear panel, the A scan electrode and a sustain electrode in the partition wall, an upper dielectric layer formed on one side of the partition wall including the scan electrode and the sustain electrode, and a bridge electrode connected to at least one of the scan electrode and the sustain electrode Characterized in that.

The scan electrode and the sustain electrode may be formed by forming one or more unit layers in the height direction of the partition wall.

In addition, the bridge electrode is characterized in that formed in the central portion of the scan electrode and the sustain electrode.

In addition, the scan electrode, the sustain electrode and the thickness of the bridge electrode is characterized in that 1 to 50 μm.

In addition, the distance between the scan electrode and the sustain electrode formed by forming one or more unit layers in the height direction of the partition wall is characterized in that each 50 to 150 μm.

In addition, a scan electrode is formed inside one of the plurality of partition walls, and a sustain electrode is formed inside another partition wall formed to partition the one discharge cell so as to face the one partition wall. It is done.

The scan electrodes and the sustain electrodes may be 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 which is linear on one side of the scan electrode and the sustain electrode facing each other.

Specific details of other embodiments are included in the detailed description and the drawings. Advantages and features of the present invention and methods for achieving them will become apparent with reference to the embodiments described below in detail in conjunction with the accompanying drawings. Like reference numerals refer to like elements throughout.

4 to 5, a plasma display panel according to an exemplary embodiment of the present invention will be described. 4 is a diagram illustrating a plasma display front panel and a rear panel according to an embodiment of 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 included in the plasma display rear panel of FIG. 4.

Unlike the plasma display front panel described above with reference to FIG. 1, the plasma display front panel according to an embodiment of the present invention 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. Is provided. Such a plasma display front panel and a rear panel according to an embodiment of 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 exemplary embodiment of the present invention includes only the front glass 400 made of a transparent material.

In addition, a plurality of address electrodes 411 are formed on an upper surface of the rear glass 410, and a lower dielectric layer 412b is formed to cover the plurality of address electrodes 411 described above.

In addition, a plurality of partitions 413 are formed on the upper surface of the lower dielectric layer 412b to define a discharge space, and a phosphor layer 414 is formed in the light emitting space between the plurality of partitions 413. In addition, a scan electrode 415 and a sustain electrode 416 are formed in the plurality of partitions 413 according to the present invention, and the scan electrode 415 and the sustain electrode 416 are in the height direction of the partition wall 413. It is preferred to form one or more unit layers.

In addition, the thickness A of the scan electrode 415 and the sustain electrode 416 is preferably 1 to 50 μm. Here, the lower limit of the thickness A of the scan electrode 415 and the sustain electrode 416 is limited to 1 μm to form a minimum thickness of the electrode, and the scan electrode 415 and the sustain electrode 416 The upper limit of the thickness (A) of) is 50 μm in order to ensure sufficient wall charge.

In addition, the distance B between the scan electrode 415 and the sustain electrode 416 formed by forming one or more unit layers in the height direction of the barrier rib 413 is preferably 50 to 150 μm. In this case, the distance B between the scan electrode 415 and the sustain electrode 416 is limited in order to ensure sufficient wall charge within a limit capable of freely securing a vertical space.

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, and the upper dielectric layer 412a is formed of the scan electrode 415 and It is preferable that the sustain electrode 416 is formed on one side surface of the partition wall which is linear on one side surface facing each other.

In addition, a scan electrode 415 is formed inside one of the plurality of partitions 413 and positioned to face the one partition 413 to define the one discharge space. The sustain electrode 416 is formed in one partition 413. Here, each of the scan electrode 415 and the sustain electrode 416 may be formed to correspond to each other in the distance direction between the partition wall 413.

As described above, the plasma display panel according to the exemplary embodiment of the present invention has a plasma display panel fabricated with a large size for pursuing high definition, and includes a scan electrode 515 and a sustain during plasma surface discharge. The intensity of the electric field formed between the electrodes 516 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) shown in FIG. Will rise.

On the other hand, the plasma display panel according to an embodiment of the present invention can further improve the light emission luminance and discharge efficiency by improving the structure of the scan electrode and the sustain electrode, looking at another example according to an embodiment of the present invention Same as FIG. 6.

6 to 7, a plasma display panel according to another exemplary embodiment will be described. 6 is a diagram illustrating a plasma display front panel and a rear panel according to another exemplary embodiment of the present invention. FIG. 7 is a diagram illustrating an electric field path in which an electric field is formed between the scan electrode and the sustain electrode provided in the plasma display rear panel of FIG. 6.

First, the plasma display panel according to another exemplary embodiment of the present invention is formed in the same manner as the plasma display panel described above with reference to FIG. 4. However, a bridge electrode is connected to the scan electrode and the sustain electrode formed in the partition wall of the plasma display panel according to another embodiment of the present invention. Such a plasma display panel according to another exemplary embodiment of the present invention will be described in more detail with reference to FIG. 6.

As shown in FIG. 6, first, the plasma display front panel according to the exemplary embodiment of the present invention includes only the front glass 600 made of a transparent material.

In addition, a plurality of address electrodes 611 are formed on an upper surface of the rear glass 610, and a lower dielectric layer 612b is formed to cover the plurality of address electrodes 611.

In addition, a plurality of partitions 613 are formed on the upper surface of the lower dielectric layer 612b so as to partition the discharge space, and a phosphor layer 614 is formed in the light emitting space between the plurality of partitions 613. In addition, a scan electrode 615 and a sustain electrode 616 are formed in the plurality of partitions 613 according to the present invention, and the scan electrode 615 and the sustain electrode 616 are in the height direction of the partition wall 613. It is preferred to form one or more unit layers.

In addition, a bridge electrode 617 is connected to at least one of the scan electrode 615 and the sustain electrode 616. The bridge electrode 617 is preferably formed at the center of the scan electrode 615 and the sustain electrode 616.

In addition, the thickness (C) of the bridge electrode is preferably 1 to 50 μm. Here, limiting the lower limit of the thickness C of the bridge electrode to 1 μm is for forming a minimum electrode thickness, and limiting the upper limit of the thickness C of the bridge electrode to 50 μm is sufficient wall charge. This is to secure.

In addition, the plurality of partitions 613, the phosphor layer 614, the upper dielectric layer 612a, and the like, which are formed on the upper surface of the lower dielectric layer 612b, are formed in the same manner as the plasma display panel illustrated in FIG. Let's do it.

As described above, the plasma display panel according to the present invention has a large sized plasma display panel for pursuing high definition, and the scan electrode 715 and the sustain electrode 716 during plasma surface discharge. The intensity of the electric field formed in the liver is stronger than that of the electric field formed between the scan electrode (201 in FIG. 2) and the sustain electrode (202 in FIG. 2) shown in FIG. 2, resulting in an increase in luminous luminance and discharge efficiency.

In addition, as shown in FIG. 7, the plasma display rear panel according to the exemplary embodiment of the present invention is formed by connecting a bridge electrode 717 to at least one of the scan electrode 715 and the sustain electrode 716. Since sufficient wall charges can be ensured even with a small electrode area, the intensity of the electric field formed between the scan electrode 715 and the sustain electrode 716 during plasma surface discharge is further improved than the plasma display panel shown in FIG. Luminance luminance and discharge efficiency are further increased.

Plasma display panel according to an embodiment of the present invention made as described above can improve the structure of the front panel and the rear panel not only to escape the constraint of the height of the partition wall, but also the luminance of the plasma display panel during the plasma discharge and There is an effect that can improve the discharge efficiency.

Claims (15)

Front panel; A rear panel spaced apart from the front panel at predetermined intervals; A plurality of partition walls for partitioning a discharge space between the front panel and the rear panel; A scan electrode and a sustain electrode formed in the partition wall; And 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 1, The scan electrode and the sustain electrode are formed by forming one or more unit layers in the height direction of the partition wall. The method of claim 2, The thickness of the scan electrode and the sustain electrode is 1 to 50 μm plasma display panel. The method of claim 2, The distance between the scan electrode and the sustain electrode formed by forming at least one unit layer in the height direction of the partition wall is characterized in that 50 to 150 μm each. The method according to any one of claims 1 to 4, A scan electrode is formed inside one of the plurality of partitions, And a sustain electrode formed inside the other partition wall positioned to face the one partition wall so as to partition the one discharge space. The method of claim 5, 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 1, 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. Front panel; A rear panel spaced apart from the front panel at predetermined intervals; A plurality of partition walls for partitioning a discharge space between the front panel and the rear panel; A scan electrode and a sustain electrode in the partition wall; An upper dielectric layer formed on one side of the partition wall provided with the scan electrode and the sustain electrode; And And a bridge electrode connected to at least one of the scan electrode and the sustain electrode. The method of claim 8, The scan electrode and the sustain electrode are formed by forming one or more unit layers in the height direction of the partition wall. The method of claim 9, And the bridge electrode is formed at a central portion of the scan electrode and the sustain electrode. The method of claim 9, The thickness of the scan electrode and the sustain electrode and the bridge electrode is 1 to 50 μm plasma display panel. The method of claim 9, The distance between the scan electrode and the sustain electrode formed by forming at least one unit layer in the height direction of the partition wall is characterized in that 50 to 150 μm each. The method according to any one of claims 8 to 12, A scan electrode is formed inside one of the plurality of partitions, And a sustain electrode formed inside the other partition wall positioned to face the one partition wall so as to partition the one discharge space. The method of claim 13, 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 8, 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.

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