KR100264730B1 - Plasma display panel - Google Patents

Abstract

PURPOSE: A plasma display panel is provided to prevent a mis-discharge by forming two discharge cells for sharing one discharge electrode Y. CONSTITUTION: The first transparent electrode(32a) is formed on a front substrate(30). The second transparent electrode(34a) is arranged between two the first transparent electrodes(32a). The first bus electrode(32b) is formed on an upper portion of a position faced to two the first transparent electrodes(32a). The second bus electrode(34b) is formed on the center portion of the second transparent electrode(34a). The second transparent electrode(34a) has a width larger than the width of the first transparent electrode(32a). The second bus electrode(34b) has a width larger than the width of the first bus electrode(32b).

Description

Plasma display panel

The present invention relates to a plasma display panel, and more particularly, to a plasma display panel in which two adjacent discharge cells share one discharge holding Y electrode.

Plasma Display Panel (PDP), which is one of the flat panel display devices, is a display device that uses gas discharge, and can be manufactured with a relatively thin thickness. In addition, due to the advantages of being able to reduce and easily produce a large display device, it is emerging as a next generation display device.

A typical example of the PDP as described above is illustrated in FIG. 1, which will be described below. 1 is a perspective view showing an AC PDP.

As shown, the rear substrate 10 and the front substrate 20 are arranged so that the arrangement surfaces of the electrodes formed on each of them face each other, where a plurality of address electrodes 1 are formed on the rear substrate 10. The address electrodes 1 are covered by the first dielectric layer 2 and define independent discharge spaces on the first dielectric layer 2 and crosstalk between adjacent discharge spaces. Barrier ribs (3) are formed between the address electrodes (1), and red, green, and blue (colors) are formed between the adjacent barrier ribs 3 to realize colorization. Blue) Phosphor layers 4 are formed, respectively.

On the front substrate 20, a plurality of discharge sustaining electrodes 22 called X electrodes 12a and Y electrodes 12b are formed, respectively, and the discharge sustain electrodes 22 are formed on the second dielectric layer 14. ), And a protective film 16 is formed on the second dielectric layer 14. Here, each discharge holding electrode 22 is composed of a transparent electrode 10a such as indium tin oxide (ITO) and a bus electrode 10b of metal formed thereon, and a pair of discharges in one discharge cell. A sustain electrode, that is, one X electrode 12a and one Y electrode 12b is disposed.

In detail, as shown in FIG. 2, on the front substrate 20, two transparent electrodes 10a spaced apart from each other at a first interval d _{1 form a pair} , and a plurality of pairs are formed at a second interval d ₂ . Bus electrodes 10b are formed on upper portions of the non-facing surfaces between the two transparent electrodes 10a forming the pair. At this time, the transparent electrode 10a and the bus electrode 10b formed thereon become one discharge sustaining electrode 22, and one of the two discharge sustaining electrodes 22 forming one set is the X electrode 12a. The other is the Y electrode 12b.

Therefore, in one discharge cell, one X electrode 12a and one Y electrode 12b are arranged to maintain the first gap d ₁ .

On the other hand, although not shown, the back substrate and the front substrate are bonded together so that their electrode arrangement surfaces face each other, and then, in the discharge space between the substrates defined by the partition walls, argon (Ar), neon (Ne), or xenon. A discharge gas (not shown) such as (Xe) is sealed.

However, in the conventional PDP as described above, as shown in FIG. 2, the X electrode and the Y electrode are alternately arranged with each other, and the X and Y electrodes have a second interval so that a discharge does not occur between them. Although the condition that it should be smaller than the interval is arranged so as to be satisfied, nevertheless, there is a problem in that display characteristics of the PDP are deteriorated because erroneous discharge may occur between two adjacent discharge cells.

In addition, since unnecessary charge and discharge current flows between adjacent discharge cells, there is a problem that the discharge efficiency is lowered.

In addition, when manufacturing a high-definition PDP, it was difficult to secure a discharge space.

Accordingly, the present invention has been made to solve the above problems, by allowing two adjacent discharge cells share one Y electrode, to prevent mis-discharge between adjacent discharge cells, as well as adjacent discharge cells SUMMARY OF THE INVENTION An object of the present invention is to provide a plasma display panel which can prevent the flow of charge and discharge currents between them.

1 is a view showing an AC plasma display panel according to the prior art;

2 is a diagram illustrating a front substrate of a conventional plasma display panel.

3 is a view showing discharge sustaining electrodes of a plasma display panel according to a first embodiment of the present invention;

4 is a view showing discharge sustain electrodes of a plasma display panel according to a second embodiment of the present invention;

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

30: front glass substrate 32a: first transparent electrode

32b: first bus electrode 34a: second transparent electrode

34b: second bus electrode 40: X electrode

50: Y electrode 60: black dielectric

In order to achieve the above object, the PDP of the present invention has a rear substrate provided with a plurality of address electrodes, a front substrate provided with a plurality of discharge sustaining X electrodes and a Y electrode, and facing the arrangement surface of the electrodes. At the same time, the address electrode and the discharge holding electrode are bonded to each other to be orthogonal, and a discharge gas is enclosed in discharge cells defined by the bonding of the back and front substrates, and the X electrodes are formed on the front substrate. Are alternately arranged at two different intervals, and the Y electrodes are disposed between two X electrodes spaced at a wider interval, and two adjacent discharge cells are disposed at the wider intervals. It is characterized in that the one Y electrode disposed between the X electrodes and the X electrodes.

According to the present invention, by allowing two adjacent discharge cells to share one Y electrode, it is possible to prevent the unnecessary discharge of the adjacent cells, as well as the flow of unnecessary charge and discharge current, even when manufacturing a fine pattern Sufficient discharge space can be secured.

(Example 1)

Hereinafter, with reference to the accompanying Figure 3 will be described in more detail a first embodiment of the present invention.

3 illustrates discharge sustaining electrodes of a PDP according to an exemplary embodiment of the present invention.

As shown in the drawing, on the front substrate 30, two adjacent first transparent electrodes 32a are formed in one pair, and a plurality of pairs are formed at regular intervals, and the two first transparent electrodes forming one pair are formed. One second transparent electrode 34a is disposed between two adjacent first transparent electrodes 32a adjacent to the field 32a to form another pair, and the two pairs forming the pair A first bus electrode 32b is formed on each of the opposing surfaces between the first transparent electrodes 32a, and a second bus electrode 34b is formed on the center of each of the second transparent electrodes 34a. Here, the width of the second transparent electrode 34a is approximately two times larger than the width of the first transparent electrode 32a, and the width of the second bus electrode 34b is approximately two times larger than the width of the first bus electrode 32b. .

Meanwhile, the first transparent electrode 32a and the first bus electrode 32b formed thereon serve as the X electrode 40 as in the prior art, and the second transparent electrode 32a and the upper portion formed thereon The second bus electrode 34b serves as the Y electrode 50. In addition, each of the X electrodes 40 and the Y electrodes 50 arranged as described above is one Y electrode 50 in two adjacent discharge cells and two X electrodes 40 adjacent to each of both sides thereof. In this case, the Y electrode 50 is shared by two adjacent discharge cells.

Therefore, the X electrodes 40 and the Y electrodes 50 are arranged in the form of X electrode-Y electrode-X electrode on the front substrate 30, and the above-described form is repeatedly arranged as a whole. Will have

Therefore, an X electrode and an X electrode are adjacent between two pairs of discharge cells forming a pair, and two pairs of discharge cells adjacent to each other, and thus there is a possibility of mis-discharge and unnecessary charge / discharge currents therebetween. The flow can be prevented from occurring.

In addition, since the distance between two adjacent discharge cells does not need to be widened, the electrode area can be increased, thereby increasing the luminance of the PDP and lowering the discharge start voltage.

In addition, sufficient discharge space can be ensured even in the production of a high-definition pattern.

(Example 2)

Hereinafter, a second embodiment of the present invention will be described in more detail with reference to FIG. 4.

4 is a view showing discharge sustaining electrodes of a PDP according to a second embodiment of the present invention. Here, the same parts as in Fig. 3 are denoted by the same reference numerals.

As shown, a plurality of discharge holding electrodes having the same shape as the Y electrode described in the first embodiment are formed on the front substrate 30 at regular equal intervals, and alternately black dielectrics are alternately formed at the centers of the discharge holding electrodes. (60) is filled. At this time, in order to fill the black dielectric 60 in the discharge sustaining electrode, the center of the discharge sustaining electrode is removed by a known method, and then the black dielectric is filled in the center of the removed discharge sustaining electrode by a printing method.

In the above description, the two discharge sustaining electrodes adjacent to the black dielectric 60 are the X electrodes 40, and the discharge sustaining electrodes disposed between the X electrodes 40 are the Y electrodes 50. Therefore, the X electrodes 40 and the Y electrodes 50 are arranged in the form of X electrode-Y electrode-X electrode on the front substrate 30 as in the first embodiment. Two X electrodes 40 and one Y electrode 50 are disposed in two adjacent discharge cells defined by the black dielectrics 60, and the two adjacent electrodes are arranged repeatedly. Discharge cells share one Y electrode 50.

Therefore, in the second embodiment of the present invention, as in the first embodiment, the X electrode 40 and the X electrode 40 are formed between two discharge cells forming a pair and two discharge cells forming a pair adjacent to each other. Since the () is adjacent to each other, it is possible to prevent the occurrence of erroneous discharge and unnecessary flow of charge and discharge currents between adjacent discharge cells during gas discharge.

In addition, in the second embodiment, since the black dielectric 60 filled between adjacent X electrodes serves as a black matrix, the contrast ratio of the PDP may be improved, and the black matrix may be formed. Since there is no need to perform a separate process for this, the effect of process reduction can be obtained.

In addition, since the width of the X electrode 40 made of the transparent electrode and the bus electrode can be made wider than before, the discharge start voltage can be lowered, and the luminance of the PDP can be further improved.

As described above, since the PDP of the present invention can prevent the occurrence of erroneous discharges between adjacent discharge cells, the display characteristics of the PDP can be improved, and the flow of charge and discharge currents between adjacent discharge cells is also improved. This can be prevented from occurring, so that the discharge efficiency of the PDP can be improved.

In addition, since the distance between two adjacent discharge cells does not need to be widened, the electrode area can be increased, thereby increasing the luminance of the PDP and lowering the discharge start voltage.

Meanwhile, although specific embodiments of the present invention have been described and illustrated, modifications and variations can be made by those skilled in the art. Accordingly, the following claims are to be understood as including all modifications and variations as long as they fall within the true spirit and scope of the present invention.

Claims (4)

A back substrate provided with a plurality of address electrodes, and a front substrate provided with a plurality of discharge holding X electrodes and Y electrodes are bonded to each other such that the address electrode and the discharge holding electrodes are perpendicular to each other while the arrangement surface of the electrodes faces each other. A plasma display panel in which discharge gas is enclosed in discharge cells defined by bonding of the back and front substrates; The X electrodes are repeatedly arranged alternately at two different intervals on the front substrate, and the Y electrodes are respectively disposed between two X electrodes spaced at a wider interval, and the two discharge cells are adjacent to each other. And two Y electrodes arranged at a wide interval and one Y electrode disposed between the X electrodes. The plasma display panel of claim 1, wherein the Y electrode is shared by two adjacent discharge cells. The plasma display panel of claim 1, wherein the Y electrode has a width approximately twice that of the X electrode. The plasma display panel of claim 1, wherein a black dielectric material is interposed between two adjacent X electrodes arranged at narrow intervals.

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