KR20060074674A - Plasma display panel - Google Patents

Abstract

The present invention relates to the bonding of a plasma display panel.

The plasma display panel according to the present invention includes a front electrode having a sustain electrode pair formed on the front glass, an upper dielectric layer and a protective layer, a rear panel having an address electrode formed on the rear glass by crossing the sustain electrode pair, and a front panel and a rear A panel is a plasma display panel bonded by a sealing material, wherein barrier ribs for partitioning R, G, and B discharge regions are formed between the front panel and the rear panel, and the protective layer is divided into a discharge region and a non-discharge region by a pair of sustain electrodes. And a protective layer and the partition wall are joined by an adhesive.

Therefore, the present invention has the effect of improving the driving efficiency of the plasma display panel by preventing cross-talk generated when the plasma display panel is driven by bonding the panel by applying an adhesive to the protective layer of the front panel and the partition of the rear panel. .

Description

Plasma Display Panel

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

2 is a view showing the bonding of the front panel and the rear panel of the conventional plasma display panel.

3 is a diagram illustrating cross-talk occurring when a conventional plasma display panel is driven.

4 is a view showing the bonding of the front panel and the rear panel of the plasma display panel according to the present invention.

5 is a diagram illustrating cross-talk generated when driving a plasma display panel according to the present invention;

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

400: front glass 410: sustain electrode

420: upper dielectric layer 430: protective layer

440: partition 450: phosphor

460: lower dielectric layer 470: address electrode

480: rear glass

The present invention relates to a plasma display panel, and more particularly, to bonding of the plasma display panel.

In general, a plasma display panel is a partition wall formed between a front panel and a rear panel to form one unit cell, and each cell includes neon (Ne), helium (He), or a mixture of neon and helium (Ne + He). An inert gas containing a main discharge gas such as 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 illustrates a structure of a general plasma display panel.

As shown in FIG. 1, a plasma display panel includes a front panel in which a plurality of sustain electrode pairs formed by pairing a scan electrode 102 and a sustain electrode 103 are arranged on a front glass 101 that is a display surface on which an image is displayed. The rear panel 110 on which the plurality of address electrodes 113 are arranged so as 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. The scan electrode 102 and the sustain electrode 103 are covered by a dielectric layer 104 which limits the discharge current and insulates the electrode pairs, and the upper surface of the upper dielectric layer 104 is made of magnesium oxide to facilitate discharge conditions. A protective layer 105 on which MgO) is deposited is formed.

The rear panel 110 is arranged in such a manner that a plurality of discharge spaces, that is, stripe-type partitions 112 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.

The front panel and the rear panel thus formed are coated with a sealing material, such as frit glass, on an ineffective surface and bonded to form a plasma display panel.

2 is a view showing the bonding of the front panel and the rear panel of the conventional plasma display panel.

As shown in FIG. 2, the conventional plasma display panel includes a sustain electrode pair in which a scan electrode and a sustain electrode are paired with a transparent electrode formed of a transparent ITO material on a front glass 200 and a bus electrode made of a metal material. 210, a protective layer in which magnesium oxide is deposited on the upper dielectric layer 220 and upper dielectric layer 220 to limit the current of the sustain electrode pair 210 and insulate the electrode pairs to facilitate discharge conditions. 230 is formed on the front panel and the rear glass 280 formed on the address electrode 270 and the lower dielectric layer 260 and the address electrode 270 to protect the address electrode 270. Partition walls 240 arranged in parallel with each other and a rear panel on which R, G, B, and phosphor layers 250 which emit visible light for image display upon address discharge are formed using a sealing material such as frit glass. The.

However, in the bonding shape, it can be seen that a gap of a predetermined length is formed between the protective layer 230 of the front panel and the partition wall 240 of the rear panel. This is because when the partition is formed, the partition is ground after the partition is fired.

Accordingly, a large number of cross-talks are generated when the plasma display panel is driven.

3 is a diagram illustrating cross-talk generated when a conventional plasma display panel is driven.

As shown in FIG. 3, wall charges formed between the front panel and the rear panel of the plasma display panel invade adjacent cells through gaps of a predetermined length. That is, when the plasma display panel is bonded and driven, the charges in the discharge cells to be discharged invade into other adjacent discharge cells, resulting in unstable distribution of wall charges.

Accordingly, there is a problem that the entire discharge of the plasma display panel becomes unstable such that the discharge cells that do not discharge are discharged and the discharge cells that are to be discharged are weakened. Accordingly, there is a problem of deteriorating driving efficiency of the plasma display panel.

Accordingly, an object of the present invention is to provide a plasma display panel which can prevent cross-talk by bonding the plasma display panel using an adhesive.

Plasma display panel according to the present invention for achieving the above object is a front panel having a sustain electrode pair formed on the front glass, an upper dielectric layer and a protective layer, the rear of the address electrode formed on the rear glass by crossing the sustain electrode pair In the plasma display panel in which the panel, the front panel, and the rear panel are bonded by a sealing material, partition walls for partitioning the R, G, and B discharge regions are formed between the front panel and the rear panel, and the protective layer is formed by a pair of sustain electrodes. A discharge region and a non-discharge region are formed, and the protective layer and the partition wall are bonded by an adhesive.

The discharge region and the non-discharge region are characterized in that they are formed differentially.

The protective layer thickness of the non-discharge region is characterized in that it is thinner than the protective layer thickness of the discharge region.

The adhesive is characterized by the same material as the sealing material.

The adhesive is characterized by consisting of sheet-type tape.

Melting point of the adhesive is characterized in that more than 500 ℃ 600 ℃.                     

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

4 is a view showing the bonding of the front panel and the rear panel of the plasma display panel according to the present invention.

Before looking at FIG. 4, the plasma display panel according to the present invention includes a front panel having a sustain electrode pair, an upper dielectric layer, and a protective layer formed therebetween, and a rear panel having an address electrode arranged to intersect the sustain electrode pair, and a front panel and a rear panel. R, G, B, and a partition wall for partitioning the discharge region are bonded together by a sealing material such as frit glass.

As shown in FIG. 4, the plasma display panel according to the present invention maintains a pair of scan electrodes and sustain electrodes provided with a transparent electrode formed of a transparent ITO material on the front glass 400 and a bus electrode made of a metal material. Protection for depositing magnesium oxide on the upper dielectric layer 420 and the upper dielectric layer 420 upper surface to limit the current of the electrode pair 410 and the sustain electrode pair 410 and to insulate the electrode pairs The address electrode 470 formed on the front panel and the back glass 480 formed with the layer 430 intersecting the sustain electrode pair 410, the lower dielectric layer 460 for protecting the address electrode 470, and the address electrode 470. ) And a rear panel on which the barrier ribs 440 arranged in parallel with each other and the R, G, B, and phosphor layers 450 which emit visible light for image display during address discharge use a sealing material such as frit glass. W is seated.

In the plasma display bonding according to the present invention, an adhesive is applied to the protective layer 430 of the front panel and the partition wall 440 of the rear panel. In this case, the protective layer 430 of the front panel of the plasma display panel according to the present invention does not have a protective layer formed at a position facing the front panel and the rear panel when they are joined. That is, the protective layer of the plasma display panel according to the present invention is formed differentially.

Therefore, the protective layer 430 of the non-discharge area of the plasma display panel, that is, the area of the front panel facing the partition wall 440, is the protective layer of the discharge area of the plasma display panel, that is, the area of the front panel not facing the partition wall 440. It is thicker than 430.

As described above, the adhesive used for bonding the plasma display panel according to the present invention is usually the same as the material of the sealing material and is made of sheet-type tape.

In addition, it should be an insulator, such as frit glass, which is usually used when bonding a conventional plasma display panel. If the adhesive applied to the protective layer 430 of the front panel and the partition wall 440 of the rear panel is a conductor, it affects the wall charges formed when the panel is driven, thereby adversely affecting the discharge.

In addition, the adhesive should use a material having a melting point of 500 ° C. or higher and 600 ° C. or lower, which is a high temperature of 500 ° C. or higher. This is to allow the adhesive formed on the protective layer 430 to melt and bond.

In addition, as described above, the plasma display panel according to the present invention does not form a gap between the front panel and the rear panel by bonding the partition panel and the protective layer 430 using an adhesive when the front panel and the rear panel are bonded. Therefore, it is possible to prevent cross-talk occurring when the plasma display panel is driven.

5 illustrates cross-talk generated when the plasma display panel is driven according to the present invention.

As shown in FIG. 5, unlike the case of FIG. 3, when the plasma display panel is driven after panel bonding, the charges in the discharge cells do not invade adjacent discharge cells, and thus the distribution of wall charges in the discharge cells is also stabilized. .

As a result, the discharge cells which do not discharge are neither discharged nor weakened.

As such, when the plasma display panel is attached, the panel is bonded by applying an adhesive to the protective layer of the front panel and the partition of the rear panel to prevent cross-talk generated when the plasma display panel is driven, thereby driving the plasma display panel. Has the effect of improving.

As described above, it will be understood by those skilled in the art that the technical configuration of the present invention may be implemented in other specific forms without changing the technical spirit or essential features of the present invention.

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.

The present invention described in detail above, by applying an adhesive to the protective layer of the front panel and the partition of the rear panel to bond the panel to prevent the cross-talk generated when driving the plasma display panel to improve the driving efficiency of the plasma display panel There is.

Claims (6)

A front panel having a sustain electrode pair formed on the front glass, an upper dielectric layer and a protective layer, a rear panel crossing the sustain electrode pair and having an address electrode formed on the rear glass, and the front panel and the rear panel joined by a sealing material. In the plasma display panel, A partition wall is formed between the front panel and the rear panel to partition R, G, and B discharge regions. The protective layer is formed of a discharge region and a non-discharge region by the sustain electrode pair, And the protective layer and the partition wall are bonded by an adhesive. The method of claim 1, And the discharge region and the non-discharge region are differentially formed. The method of claim 2, The protective layer thickness of the non-discharge region is thinner than the protective layer thickness of the discharge region. The method of claim 1, The adhesive is plasma display panel, characterized in that the same as the material of the sealing material. The method according to claim 1 or 4, And said adhesive is made of sheet tape. The method of claim 5, Melting point of the adhesive is a plasma display panel, characterized in that more than 500 ℃ 600 ℃.

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