KR100484644B1 - Plasma display panel having dummy electrode - Google Patents

Abstract

A plurality of scan electrodes, sustain electrodes and address electrodes are disposed on a display area set on a substrate, and at least one dummy scan electrode and a dummy sustain electrode are disposed on a non-display area set on the substrate, and the plasma The first scan electrode and the dummy scan electrode corresponding to the first driving line of the display panel are commonly connected.

Description

Plasma display panel having a dummy electrode {PLASMA DISPLAY PANEL HAVING DUMMY ELECTRODE}

The present invention relates to a plasma display panel, and more particularly, to a plasma display panel in which a dummy electrode is formed on a non-display area.

In recent years, plasma display panels, which have been spotlighted by large-screen image display devices such as flat wall-mounted televisions, as well known, realize arbitrary images according to discharge mechanisms occurring in discharge cells.

The discharge mechanism includes a priming and reset section for initializing a full screen, an address section for writing data while scanning the full screen in a sequential manner, a sustain section for maintaining a light emission state of cells to which data is to be written, and a sustain discharge. It is divided into an erasing section.

To this end, the plasma display panel includes two substrates, which are divided into upper and lower plates, a sustain electrode (or X electrode) and a scan electrode (or Y electrode) disposed on the upper plate among the substrates, and an address disposed on the lower plate. A partition wall disposed between an electrode, the upper plate, and the lower plate to form a space corresponding to the discharge cell, and a dielectric layer disposed in the upper plate and the lower plate are provided.

Looking at the configuration of such a plasma display panel further through the drawings, as follows.

FIG. 3 is a view schematically showing a general plasma display panel. As shown in FIG. 3, a plurality of barrier ribs 3 forming discharge cells are formed between two substrates 1 forming upper and lower plates at regular intervals. The address electrodes 5 are arranged on the lower plate of the substrate 1 between the partitions 3 so as to receive an address signal.

In addition, the scan electrode 7 and the sustain electrode which form a pair of sustain electrodes for one discharge cell at arbitrary intervals in a direction crossing the address electrode 5 are arranged on the upper plate of the substrate 1. (9) is formed in plural.

Furthermore, the dummy scan electrode 15 and the dummy sustain electrode 17 are formed on the substrate 1 in regions other than the light emitting region 11 set on the substrate 1, that is, the non-light emitting region 13. .

In the conventional plasma display panel formed as described above, a driving voltage is applied to the address electrode 5 and the scan electrode 7 to generate an address discharge between the electrodes, and thus the upper and lower plates of the substrate 1 are respectively formed. Wall charges are formed on the formed dielectric layer (not shown), and the positive and negative electrodes 7, and 9 are alternately supplied to the scan electrode 7 and the sustain electrode 9 in the cells selected by the address discharge. ) Causes sustain discharge to the liver.

Accordingly, in the discharge space forming the discharge cell, ultraviolet rays are generated as the discharge gas filled in the space is excited and transitioned, so that the plasma display panel generates a visible light by excitation of the phosphor caused by the ultraviolet light. The image will be implemented.

As described above, in the plasma display panel, since a substantial action is started from the address discharge occurring between the address electrode 5 and the scan electrode 7, the address discharge must occur properly, so that the sustain discharge to be progressed also occurs properly and thus stable visible light. Light emission of lines makes it possible to properly implement a desired image.

However, the conventional plasma display panel has sufficient address discharges occurring between the first scan electrode disposed above the substrate 1 and the corresponding address electrode, based on the first driving line, that is, FIG. 3. Otherwise, when a substantial image is realized, the image of the boundary between the light emitting region 11 and the non-light emitting region 13 is inferior in quality to the image implemented at another portion.

This problem is because, during the address discharge, the charged particles due to priming are not sufficiently supplied to the discharge cells corresponding to the first drive line as compared with other discharge cells.

SUMMARY OF THE INVENTION The present invention has been made in view of the above problems, and an object of the present invention is to provide a plasma display panel capable of supplying sufficient flying charged particles to a discharge cell corresponding to the first driving line.

Accordingly, in the plasma display panel according to the present invention, a plurality of scan electrodes, sustain electrodes and address electrodes are arranged on a display area set on a substrate, and the dummy scan electrode and the sustain electrode are placed on a non-display area set on the substrate. 1 or more, and the scan electrode and the dummy scan electrode for the first driving line of the plasma display panel are connected in common.

In addition, in the plasma display panel according to the present invention, a plurality of scan electrodes, sustain electrodes and address electrodes are arranged on a display area set on a substrate, and the dummy scan electrode and sustain electrodes are placed on a non-display area set on the substrate. 1 or more, and a scan electrode and a dummy scan electrode which are disposed closest to the boundary between the display area and the non-display area are commonly connected.

Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings.

1 is a partial perspective view showing a plasma display panel according to an embodiment of the present invention, Figure 2 is a plan view schematically showing a plasma display panel according to an embodiment of the present invention.

As shown in the figure, the plasma display panel of the present invention is formed with two first substrates (lower substrates) 20 and second substrates (upper substrates) 22 facing each other similarly to a general plasma display panel. In addition, the substrate 20, 22 has a configuration capable of realizing the image by the discharge.

Looking at the configuration thereof, first, the inner surface of the second substrate 22 is formed with a plurality of stripe-shaped scan electrode 26 and the sustain electrode 28 covered by a transparent dielectric layer 24 at arbitrary intervals. . The dielectric layer 24 is covered and protected by a protective film such as MgO (not shown).

In addition, the inner surface of the first substrate 20 has a stripe address electrode 32 covered by the dielectric layer 30 having high reflectance in a direction crossing the scan electrode 26 and the sustain electrode 28. The plurality of bar electrodes are arranged in plural to form a discharge cell 34 between the adjacent address electrodes 32 in a direction parallel to the longitudinal direction of the address electrodes 32 so as to form discharge cells 34 which are spaces for performing gas discharge. The partition 36 is provided. In addition, a phosphor 38 capable of emitting red (R), green (G), and blue (B) light is formed inside each discharge cell 34, respectively.

In the above, the scan electrode 26, the sustain electrode 28 and the address electrode 32 are disposed in the light emitting region 40 set on the substrates 20 and 22, which emit light on the substrates 20 and 22. In addition to the region 40, the non-light emitting region 42 is formed outside the light emitting region 40 along the circumference of the light emitting region 40. The same pattern as that of the scan electrode 26 and the sustain electrode 28 is shown. The dummy scan electrode 44 and the dummy sustain electrode 46 are further formed. Here, the number of the dummy scan electrode 44 and the dummy sustain electrode 46 may be 1 or more. In this embodiment, the upper and lower sides of the light emitting area 40 are centered on the light emitting area 40. Each one is formed in the non-emission area | region 42 corresponding to this.

Meanwhile, in the present invention, the first driving line of the plasma display panel, that is, the scan electrode 26a which is first positioned in the electrode line positioned in the upper portion of the emission area 40 when the reference is made to the drawings. Is commonly connected to the dummy scan electrode 44 disposed thereon.

In other words, in the plasma display panel, the boundary between the emission area 40 and the non-emission area 42 is disposed, and the scan electrode 26a and the dummy scan electrode 44 disposed closest to the boundary are connected in common. do.

The reason why the two electrodes 26a and 44 are commonly connected in the present invention is to supply a larger amount of charged particles by priming to the discharge cells 34 formed by the first driving line. .

In the plasma display panel as described above, both of the substrates 20 and 22 are opposed to each other in a state in which rare gases such as Ne and He are enclosed in the respective discharge cells 34, and the surroundings thereof are sealed with adhesive means such as frit. It is formed by.

The plasma display panel having such a configuration includes an address discharge formed between the address electrode 32 and the scan electrode 26 with respect to the selected discharge cell 34, and between the scan electrode 26 and the sustain electrode 28. Any image is implemented according to the sustain discharge to be formed. In this case, the address discharge and the sustain discharge can be stably achieved even with respect to the discharge cell formed by the first driving line. The image of the boundary portion of the non-light emitting area 42 can also be correctly implemented.

The operation of the present invention is that when the discharge to the discharge cell of the first drive line, a driving pulse supplied to the first scan electrode 26a is also applied to the dummy scan electrode 44 connected in common to the Discharge is generated between the scan electrode 26a and the dummy scan electrode 44, at which time the priming charged particles generated are supplied to the discharge cells of the first drive line.

Accordingly, in the plasma display panel of the present invention, the image embodied in the discharge cell on the first driving line can be properly represented according to sufficient address discharge and sustain discharge, similarly to the image embodied in other regions.

Although the preferred embodiments of the present invention have been described above, the present invention is not limited thereto, and various modifications and changes can be made within the scope of the claims and the detailed description of the invention and the accompanying drawings. Naturally, it belongs to the scope of the invention.

As described above, the plasma display panel according to the present invention can properly implement an image of the display area and the non-display area boundary area according to the structure of the improved dummy electrode, thereby having an advantage in improving the overall image quality. have.

In addition, it is possible to have a good advantage in securing a voltage margin based on stable address discharge.

1 is a partially exploded perspective view illustrating a plasma display panel according to an exemplary embodiment of the present invention.

2 is a plan view schematically illustrating a plasma display panel according to an exemplary embodiment of the present invention.

3 is a plan view schematically illustrating a general plasma display panel.

Claims (2)

Plasma display in which a plurality of scan electrodes, sustain electrodes and address electrodes are arranged on the display area set on the substrate, and one or more dummy scan electrodes and dummy sustain electrodes are arranged on the non-display area set on the substrate. In the panel, And a first scan electrode corresponding to the first driving line of the plasma display panel and the dummy scan electrode are connected in common. Plasma display in which a plurality of scan electrodes, sustain electrodes and address electrodes are arranged on the display area set on the substrate, and one or more dummy scan electrodes and dummy sustain electrodes are arranged on the non-display area set on the substrate. In the panel, And a first scan electrode disposed closest to a boundary between the display area and the non-display area and the dummy scan electrode.