KR20040098910A - Plasma display panel - Google Patents

Abstract

PURPOSE: A plasma display panel is provided to achieve improved discharge characteristics by enhancing arrangement of scan electrodes and display electrodes such that the arrangement is suitable to dual scan operation. CONSTITUTION: A plasma display panel comprises first address electrodes(8a) and second address electrodes(8b) arranged in a first region and a second region on a first substrate, respectively; and scan electrodes(16Y) and display electrodes(16X) arranged perpendicularly to the first and second address electrodes on a second substrate facing the first substrate. An arrangement order of the scan electrodes and the display electrodes in the first region is opposite to an arrangement order of the scan electrodes and the display electrodes in the second region.

Description

Plasma Display Panel {PLASMA DISPLAY PANEL}

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a plasma display panel, and more particularly, to a plasma display panel having improved discharge characteristics by changing an arrangement of scan electrodes and display electrodes to be suitable for dual scan driving.

In general, a plasma display panel (PDP) excites a fluorescent film with vacuum ultraviolet rays caused by gas discharge occurring in a discharge cell to realize an arbitrary image. Such discharge cells are typically formed by barrier ribs positioned on the back substrate with any pattern (stripe, grating or other shape).

In a conventional three-electrode surface discharge type AC plasma display panel, an address electrode is disposed on a rear substrate and a scan electrode and a display electrode disposed orthogonally to an address electrode on a rear substrate corresponding to each discharge cell.

As a result, the plasma display panel, as is well known, includes an initialization section for preparing new information in a cell, an address section for selecting a cell through discharge between the address electrode and the scan electrode, and a discharge between the scan electrode and the display electrode. The driving is divided into sustaining sections in which actual light emission is performed, and one screen is displayed through these three sections.

On the other hand, in a high-definition plasma display panel having a vertical resolution of 768 or more, it is common to separate the address electrode into two regions and drive the dual scan method. In this case, at the center of the panel, the address electrodes are positioned apart from each other at a processable distance without causing mutual interference.

3 is a schematic diagram illustrating an address electrode, a scan electrode, and a display electrode in a plasma display panel driven by a dual scan method. As shown, the address electrode 1 is divided into the upper and lower regions A and B of the panel. In a typical plasma display panel, the scan electrode 3Y is disposed on the display electrode 3X in all pixels. Alternatively, as shown in the drawing, the display electrode 3X is disposed on the scan electrode 3Y.

Thus, when looking at the pixels located at the lowest end of the upper region A of the panel, the intersection of the address electrode 1 and the scan electrode 3Y where the address discharge occurs in these pixels is an arbitrary end of the address electrode 1. In the pixels located at the top of the lower region B of the panel, the intersection of the address electrode 1 and the scan electrode 3Y where the address discharge occurs is almost at the end of the address electrode 1 while being spaced apart from each other. do.

In general, however, the end of a long conductor has a drastic change in electromagnetic characteristics due to the so-called "edge effect", and furthermore, when the pixel size is reduced for high resolution in a plasma display panel, the edge effect has a greater effect. Go crazy.

As a result, the address discharge characteristics of the pixels positioned at the lowermost end of the upper panel area A and the pixels positioned at the uppermost end of the panel lower area B are different. In particular, the pixel at which the address discharge occurs at the end of the address electrode 1 is different. In this case, the address discharge characteristic becomes much weaker. As a result, there is a problem in that the address discharge characteristics are deteriorated in the pixels at the uppermost end of the panel lower region B, thereby degrading display quality.

Accordingly, an object of the present invention is to solve the above problems, and an object of the present invention is to improve the display quality by improving the discharge characteristics of pixels having poor discharge characteristics in a plasma display panel driven by a dual scan method. To provide a panel.

1 is a schematic diagram of an address electrode, a scan electrode, and a display electrode of a plasma display panel according to an exemplary embodiment of the present invention.

FIG. 2 is a partially exploded perspective view of the plasma display panel having the electrodes shown in FIG. 1.

3 is a schematic diagram of an address electrode, a scan electrode, and a display electrode in a plasma display panel according to the prior art.

In order to achieve the above object, the present invention,

First and second address electrodes positioned in the first and second regions of the panel on the first substrate, respectively, and a scan electrode disposed orthogonally to the first and second address electrodes on the second substrate facing the first substrate. And a display panel including a plurality of display electrodes for driving in a dual scan method, the arrangement of a scan electrode and a display electrode positioned in a first area and a scan electrode and a display electrode arranged in a second area. A plasma display panel is provided which is made in the reverse order.

The first region has a first pixel line facing the second region, and the display electrode and the scan electrode are positioned at the end of the first address electrode facing the second region in the first pixel line. In addition, the second region has a second pixel line facing the first region, and the display electrode and the scan electrode are positioned at an end of the second address electrode facing the first region in the second pixel line.

Preferably, in the first region, the display electrode and the scan electrode are sequentially positioned from the end of the first address electrode facing the second region along the direction of the first address electrode, and in the second region, the second address electrode facing the first region. The display electrode and the scan electrode are sequentially positioned from the ends along the direction of the second address electrode.

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

FIG. 1 is a schematic view of an address electrode, a scan electrode, and a display electrode of a plasma display panel according to an exemplary embodiment of the present invention, and FIG. 2 is a partially exploded perspective view of a plasma display panel having electrodes shown in FIG. 1.

As shown, the plasma display panel arranges the two transparent first substrates 2 and the second substrates 4 substantially parallel at random intervals, and implements an image by a discharge mechanism between the substrates. It is provided with a configuration that can.

In detail, first, the plurality of address electrodes 8 covered with the dielectric layer 6 are formed in a stripe pattern on the first substrate 2, and are parallel to the address electrodes 8 over the dielectric layer 6. A plurality of partitions 10 are installed. In addition, a fluorescent layer 12 including red (R), green (G), and blue (B) phosphors is provided on the side surfaces of the barrier ribs 10 and the top surface of the dielectric layer 6.

On one surface of the second substrate 4 opposite to the first substrate 2, scan electrodes 16Y and display electrodes 16X disposed at right angles to the address electrode 8 and covered with the transparent dielectric layer 14 are covered. It is formed in a stripe pattern. In addition, a transparent protective film 18 made of MgO or the like is disposed on the transparent dielectric layer 14.

The partitions 10 constitute a space formed therebetween as a discharge space, and discharge gas is injected into the discharge space to form a discharge cell 20. In the present embodiment, the partition wall 10 is formed in a lattice shape, but the shape of the partition wall 10 in the present invention is not limited thereto, and may also be formed in other shapes such as, for example, a stripe pattern.

The plasma display panel having the above-described configuration seals the first substrate 2 and the second substrate 4 facing each other with the frit 22 around each other, and injects discharge gas into the frit 22. Through the process, one display device is completed.

The plasma display panel may include discharge cells 20 through an initialization period, an address period using the address electrode 8 and the scan electrode 16Y, and a sustain period using the scan electrode 16Y and the display electrode 16X. The light is emitted to implement an arbitrary image.

In the plasma display panel according to the present invention, the address electrode 8 is divided into two parts, so that the first address electrodes 8a and the second address electrodes 8b are respectively disposed on the upper and lower regions A and B of the panel. ) Is driven by a known dual scan method, and the arrangement of the scan electrode 16Y and the display electrode 16X is performed as follows so-called "edge effect" of the address electrode 8. The structure which prevents the fall of the discharge characteristic by "" is employ | adopted.

In the present invention, the above configuration consists of reversing the arrangement order of the scan electrode 16Y and the display electrode 16X along the direction of the address electrode 8 in the upper region A and the lower region B of the panel.

In more detail, in the plasma display panel according to the present exemplary embodiment, the scan electrode 16Y is disposed on the display electrode 16X in the upper region A of the panel where the first address electrodes 8a are positioned. In the lower region B of the panel where the two address electrodes 8b are positioned, the display electrode 16X is disposed on the scan electrode 16Y.

That is, in the upper area A of the panel, the display electrode 16X and the scan electrode 16Y are arranged in the order from the end of the first address electrode 8a facing the lower area B in the direction of the first address electrode 8a. In the lower region B of the panel, the display electrode 16X and the scan electrode 16Y are arranged along the direction of the second address electrode 8b from the end of the second address electrode 8b facing the upper region A. FIG. Located in order.

According to the above structure, the first address electrode 8a and the scan electrode where address discharge occurs in the pixels located at the lowermost end of the panel upper region A (hereinafter referred to as 'first pixel line 24A' for convenience). The crossing portion of 16Y is positioned apart from the end of the first address electrode 8a at an arbitrary distance.

In addition, the second address electrode 8b and the scan electrode 16Y in which address discharge occurs in pixels positioned at the uppermost end of the panel lower region B (hereinafter, referred to as 'second pixel line 24B' for convenience). The intersecting portions of are positioned to be spaced apart from the end of the second address electrode 8b in the same manner as the pixels at the bottom of the upper region A described above.

As described above, in the plasma display panel according to the present exemplary embodiment, the scan electrodes 16Y are formed at the first pixel line 24A and the second pixel line 24B forming the boundary between the panel upper region A and the lower region B. FIG. Since the electrodes are spaced apart by the same distance from the ends of the address electrodes 8, the effect of the ends of the address electrodes 8 on the address discharge of these pixel lines is equalized to improve the discharge characteristics of the panel.

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 range of.

As described above, according to the present invention, in the plasma display panel driven by the dual scan method, the address discharge characteristics are uniform in the pixel lines forming the boundary between the upper region and the lower region. As a result, the plasma display panel according to the present invention improves the discharge characteristics of the upper and lower region boundary portions to improve the display quality.

Claims (5)

First and second address electrodes positioned in the first and second regions of the panel on the first substrate, respectively, and a scan electrode disposed orthogonally to the first and second address electrodes on the second substrate facing the first substrate. And a plasma display panel having display electrodes to drive in a dual scan method. And an arrangement order of the scan electrodes and the display electrodes positioned in the first area in a reverse order to an arrangement order of the scan electrodes and the display electrodes located in the second area. The method of claim 1, The first region includes a first pixel line facing the second region, the display electrode and the scan electrode are positioned from an end of the first address electrode facing the second region in the first pixel line, and the second A plasma display panel in which a region has a second pixel line facing the first region, and the display electrode and the scan electrode are positioned from the end of the second address electrode facing the first region in the second pixel line. The method of claim 1, In the first region, the display electrode and the scan electrode are sequentially positioned from the end of the first address electrode facing the second region along the direction of the first address electrode, and in the second region, the end of the second address electrode facing the first region. And a display electrode and a scan electrode are sequentially positioned in the direction of the second address electrode from the plasma display panel. First and second address electrodes positioned in the first and second regions of the panel on the first substrate, respectively, and a scan electrode disposed orthogonally to the first and second address electrodes on the second substrate facing the first substrate. And a plasma display panel having display electrodes to drive in a dual scan method. The first region has a first pixel line facing the second region, the second region has a second pixel line facing the first region, and each of the first and second pixel lines A plasma display panel in which a display electrode and a scan electrode are positioned from the ends of the first and second address electrodes. The method of claim 4, wherein In the first region, the display electrode and the scan electrode are sequentially positioned from the end of the first address electrode facing the second region along the direction of the first address electrode, and in the second region, the end of the second address electrode facing the first region. And a display electrode and a scan electrode are sequentially positioned in the direction of the second address electrode from the plasma display panel.