KR100439267B1 - A Plasma Display Panel - Google Patents

Abstract

The present invention relates to a front substrate electrode structure of a plasma display panel.

The configuration of the present invention includes a pair of substrates arranged at a predetermined interval, a plurality of address electrodes formed on the one substrate, a plurality of sustain electrodes and scan electrode pairs formed to cross the address electrodes on another substrate, and the pair 10. A plasma display panel comprising a partition wall disposed between substrates of a substrate, the partition electrode defining a discharge space, wherein the sustain electrode and the scan electrode extend in a direction orthogonal to the address electrode and in an address electrode extending direction from the bus electrode. It consists of transparent electrodes projecting alternately up and down, the transparent electrode between the sustain electrode and the scan electrode adjacent to each other are formed to face each other to constitute a discharge cell; Two adjacent upper and lower transparent electrodes alternately formed on the bus electrode of the sustain electrode or the bus electrode of the scan electrode do not overlap at least in the column direction with respect to the bus electrode; The transparent electrode of the sustain electrode and the transparent electrode of the scan electrode are characterized in that the opposite side is formed larger than the portion in contact with the bus electrode, respectively.

Therefore, according to the present invention, a high quality image can be displayed by providing a means for suppressing interference between adjacent discharge cells in a plasma display panel having a delta pixel structure.

Description

Plasma Display Panel {A 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 front substrate electrode structure of a plasma display panel having a delta pixel structure in which sustain electrodes and scan electrodes are associated with upper and lower discharge cells in order to realize high resolution and high brightness. .

FIG. 1 is a view showing a schematic configuration of a general AC surface discharge plasma display panel, and includes a front glass substrate 1, an address electrode 3 formed on the front glass substrate, and a back glass substrate 2 facing the front glass substrate. On the back glass substrate, the X electrode 7 and the Y electrode 8 arranged in parallel with each other, the dielectric layer 6 and the dielectric layer 6 formed to cover the X electrode 7 and the Y electrode 8 And a barrier rib 4 disposed between the front glass substrate 1 and the rear glass substrate to partition the discharge space.

FIG. 2 is a diagram illustrating an arrangement of driving electrodes of the plasma display panel of FIG. 1, wherein a plurality of address electrodes A1, A2, A3,..., Am-1, Am are arranged in parallel with each other. It consists of a plurality of X electrodes and Y electrodes Y1, Y2, Y3, ..., Yn-1, Yn arranged to cross substantially vertically. A discharge cell is formed at the intersection of the plurality of X electrodes, the Y electrodes and the address electrodes, the Y electrode is a scan electrode, and the X electrodes are commonly connected common electrodes.

3 is a front substrate electrode structure of a plasma display panel for a conventional high resolution display, in which one sustain electrode and a scan electrode can apply a sustain pulse or a scan pulse to upper and lower adjacent cells. 1, iodd-2, ...) and an even-numbered display line (ieven-1, ieven-2, ...) are used to display the interlace (interlaced) scanning method separately. Such a structure is easy to manufacture and has an excellent priming effect due to free movement of space charge between discharge cells, but there is a problem in that crosstalk is generated between discharge cells and vertically adjacent discharge cells.

In order to solve this problem, as shown in FIG. 4, transparent electrodes 11 and 11 ′ are alternately formed above and below the bus electrode 10, so that the sustain electrodes and the scan electrodes are adjacent to each other and the scan electrodes are adjacent to each other. A front substrate electrode structure related to the electrodes is proposed (US Pat. No. 6,281,628).

In the structure shown in FIG. 4, one pixel composed of red (R), green (G), and blue (B) discharge cells forms a delta-type pixel, and is addressed through the scan electrodes Y1, Y2,... Thereafter, sustain discharge is performed through the odd sustain electrodes Xodd-1... And the scan electrodes Y1, Y2,..., And then addressed through the scan electrodes Y1, Y2,. High resolution and high brightness display are possible by using an interlace scanning method of driving sustain discharge through Xeven-1... And scan electrodes Y1, Y2,.

However, this structure has a portion in which two adjacent transparent electrodes overlap each other in the column direction with the bus electrode as a boundary, and thus, when the adjacent discharge cells have different operating states, that is, adjacent discharge cells. When one of the discharge cells is turned on and the other discharge cell is turned off, a malfunction occurs due to mutual interference, which causes a problem that the image quality of the plasma display device is significantly degraded.

SUMMARY OF THE INVENTION An object of the present invention is to solve the above-described problem. In order to realize high resolution and high brightness, between two transparent electrodes adjacent to a bus electrode in a delta pixel structure in which a sustain electrode and a scan electrode are respectively associated with upper and lower discharge cells. An object of the present invention is to provide a transparent substrate structure of a front substrate of a plasma display panel that can suppress mutual interference.

1 is a diagram showing a schematic configuration of a typical AC surface discharge PDP;

FIG. 2 is a diagram illustrating a front substrate electrode array structure of a conventional plasma display panel;

3 is a view illustrating in detail a front substrate electrode structure of a conventional plasma display panel;

4 is a diagram illustrating in detail a front substrate electrode structure of a plasma display panel for a conventional high resolution display;

5 is a diagram showing the interference occurrence probability according to the overlap ratio of adjacent transparent electrodes protruding up and down alternately from the bus electrode;

6 is a diagram illustrating a front substrate electrode structure of a plasma display panel according to an exemplary embodiment of the present invention;

7 illustrates a structure of an electrode of a front substrate of a plasma display panel according to another exemplary embodiment of the present invention.

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

1: front glass substrate 2: back glass substrate

3: address electrode 4: partition wall

5: phosphor 6: dielectric layer

7: X electrode 8: Y electrode

The first technical solution of the present invention for achieving the above object is a pair of substrates arranged at regular intervals, a plurality of address electrodes formed on one substrate, a plurality of substrates formed to cross the address electrodes on another substrate 12. A plasma display panel comprising a sustain electrode and a scan electrode pair of the substrate, and a partition wall disposed between the pair of substrates to define a discharge space, wherein the sustain electrode and the scan electrode extend in a direction orthogonal to the address electrode. An electrode and transparent electrodes projecting alternately up and down in the address electrode extending direction from the bus electrode, wherein transparent electrodes between the sustain electrodes and the scan electrodes adjacent to each other are formed to face each other to constitute a discharge cell; Two adjacent upper and lower transparent electrodes formed by alternating bus electrodes of the sustain electrode or scan electrode do not overlap at least in the column direction with respect to the bus electrode; The transparent electrode of the sustain electrode and the transparent electrode of the scan electrode are characterized in that the opposite side is formed larger than the portion in contact with the bus electrode, respectively.

Another technical solution for achieving the object of the present invention is a pair of substrates arranged at regular intervals, a plurality of address electrodes formed on the one substrate, a plurality of sustain electrodes formed to cross the address electrode on the other substrate And a scan electrode pair, a dielectric layer formed on the other substrate to cover the sustain electrodes and the scan electrodes, and a partition wall disposed between the pair of substrates to partition a discharge space. And the scan electrode are composed of a bus electrode extending in a direction orthogonal to the address electrode and transparent electrodes projecting alternately up and down in the address electrode extension direction from the bus electrode, and a transparent electrode between the sustain electrode and the scan electrode adjacent to each other. Are formed to face each other to constitute a discharge cell; A protrusion that surrounds the transparent electrode is formed on the dielectric layer.

In addition, it is preferable to form the protrusion so as to surround two transparent electrodes facing each other up and down.

Hereinafter, embodiments of the present invention according to the above configuration will be described with reference to the accompanying drawings.

FIG. 5 is a graph illustrating mutual interference probability depending on the degree of overlap between two adjacent transparent electrodes A 'and B protruding up and down from the bus electrode of the sustain electrode or the scan electrode in the column direction.

As in the conventional front substrate electrode structure shown in FIG. 4, the degree of overlapping of two adjacent transparent electrodes A 'and B protruding up and down alternately from the bus electrode of the sustain electrode or the scan electrode is increased in the column direction. Overlapping ratio <0) When the discharge states are different from each other, the probability of mutual interference increases.

However, in the case where the overlapping portions of two adjacent transparent electrodes A 'and B protruding up and down alternately from the bus electrode of the sustain electrode or the scan electrode are eliminated, the opposing area between the transparent electrodes A and B on the upper side or the lower side is removed. It becomes narrower, which causes a problem of lowering the luminance due to the reduction of the discharge area.

Fig. 6 shows the opposite area between the transparent electrodes A and B at the same time while eliminating the overlapping portions of two adjacent transparent electrodes A 'and B which protrude alternately from the bus electrode of the sustain electrode or the scan electrode. The front substrate electrode structure that can be widened is also shown. That is, the overlapping direction of the transparent electrodes protruding up and down on the boundary of the bus electrode is eliminated, and the opposite side is increased by protruding the opposite side larger than the transparent electrode portion in contact with the bus electrode.

FIG. 7 is a view showing another embodiment of the present invention. After forming a dielectric layer formed to cover sustain electrodes and scan electrodes formed on a front substrate, a protrusion 13 surrounding the transparent electrode is formed on the dielectric layer. Form. In this way, it is possible to prevent mutual interference between the transparent electrodes protruding up and down alternately by forming the protrusions 13 so as to surround the facing transparent electrodes A and B, respectively. Of course, in FIG. 6, the two protrusions 13 are formed to surround the opposite transparent electrodes, but the transparent electrodes A or B may be individually wrapped.

Therefore, according to the present invention, the delta pixel structure formed of an electrode structure for high-resolution high brightness display on the front substrate of the plasma display panel, that is, a transparent electrode structure protruding up and down alternately from the bus electrode of the sustain electrode or the scan electrode, is moved up and down. There is an effect that can reduce the brightness while reducing the mutual interference of the protruding adjacent transparent electrode.

Although the present invention has been described in detail as the embodiments described above, it will be apparent to those skilled in the art that various modifications and variations are possible within the technical spirit of the present invention, and such modifications and modifications belong to the appended claims.

Claims (3)

A pair of substrates arranged at regular intervals, a plurality of address electrodes formed on the one substrate, a plurality of sustain electrodes and scan electrode pairs formed to cross the address electrodes on another substrate, and disposed between the pair of substrates A plasma display panel including partition walls for partitioning a discharge space, comprising: The sustain electrode and the scan electrode are composed of a bus electrode extending in a direction orthogonal to the address electrode and transparent electrodes protruding up and down alternately from the bus electrode in an address electrode extending direction, and between the sustain electrode and the scan electrode adjacent to each other. Are formed to face each other to constitute a discharge cell, and one pixel consisting of the discharge cells forms a delta type pixel; Two adjacent upper and lower transparent electrodes formed by alternating bus electrodes of the sustain electrode or scan electrode do not overlap at least in the column direction with respect to the bus electrode; And the opposite side of each of the sustain electrode and the scan electrode is larger than the contact portion of the sustain electrode. A pair of substrates arranged at regular intervals, a plurality of address electrodes formed on the one substrate, a plurality of sustain electrodes and scan electrode pairs formed to cross the address electrodes on another substrate, and the sustain electrodes on the other substrate A plasma display panel comprising: a dielectric layer formed to cover scan electrodes; and a partition wall disposed between the pair of substrates to partition a discharge space. The sustain electrode and the scan electrode are composed of a bus electrode extending in a direction orthogonal to the address electrode and transparent electrodes protruding up and down alternately from the bus electrode in an address electrode extending direction, and between the sustain electrode and the scan electrode adjacent to each other. Are formed to face each other to constitute a discharge cell, and one pixel consisting of the discharge cells forms a delta type pixel; And a protrusion that surrounds the transparent electrode is formed on the dielectric layer. The method of claim 2, And the projections are formed so as to surround two transparent electrodes adjacent to each other and facing up and down.