KR20020008253A - Plasma display panel - Google Patents

Abstract

PURPOSE: A plasma display panel is provided to prevent a cross-talk phenomenon between cells by using a barrier electrode for preventing a movement of charged particles to neighboring cells. CONSTITUTION: A plasma display panel is formed with an upper structure and a lower structure. In the upper structure, a sustain electrode(4) is formed on a surface of a front glass substrate(1) in order to sustain discharge. The sustain electrode(4) is formed with a couple of scan electrode and common electrode. A dielectric layer(2) is formed on the sustain electrode(4). A protective layer is formed on the dielectric layer(2). In the lower structure, an address electrode(10) is formed on a rear glass substrate(9) in order to drive the initial discharge of the sustain electrode(4). A barrier(6) is formed between the address electrodes(10). A barrier electrode(21) is formed on a predetermined region within the barrier(6). A fluorescent layer(8) is formed on the whole surface of the address electrode(10) including the barrier(6) and the barrier electrodes(21).

Description

Plasma Display Panel {PLASMA DISPLAY PANEL}

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to flat panel display devices, and more particularly, to a plasma display panel.

In general, the plasma display panel is a flat panel display device that can be manufactured in a thin film form compared to the conventional CRT (Cathode Ray Tube) and is attracting attention due to its high contrast ratio and high brightness. However, in order to fully commercialize, there is an urgent need for technology development to reduce price and power consumption.

As shown in FIG. 1, the plasma display panel is divided into an upper structure and a lower structure.

1 is a cross-sectional view of one cell of the plasma display panel, and the same structure is repeated on both sides. In particular, the upper structure shows a structure rotated by 90 ° for convenience of description.

The upper structure consists of a pair of scan electrodes and a common electrode on the surface of the front glass substrate 1 to form a sustain electrode 4 for maintaining a discharge, and a dielectric layer 2 on the sustain electrode 4 It is formed by a printing technique. The protective layer 3 is formed on the dielectric layer 2 by a deposition method.

On the other hand, in the lower structure, an address electrode 10 for driving an initial discharge of the sustain electrode 4 is formed on the rear glass substrate 9, and the sustain electrode 4 is disposed with the address electrode 10 interposed therebetween. The partition wall 6 is formed to prevent crosstalk between adjacent cells between the electrode and the address electrode 10. The fluorescent layer 8 is formed on the entire surface of the address electrode 10 including the partition 6 and the glass substrate 9.

Meanwhile, an inert gas is sealed in the space between the upper structure and the lower structure to form a discharge region 5.

In this structure, when a driving voltage is applied to the pair of sustain electrodes 4 by the address electrode 10, the surfaces of the dielectric layer 2 and the protective layer 3 in the discharge region 5 are applied. Surface discharge occurs and thus ultraviolet rays 7 are generated. The ultraviolet light 7 excites the phosphor of the fluorescent layer 8 to emit light. Subsequently, the color of each pixel is displayed by the light emission of the fluorescent layer 8.

In addition, as driving voltages are applied to the sustain electrodes 4, charged particles are generated and accumulated in the dielectric layer 2, and are discharged when the voltage changes, thereby lowering the driving voltage.

However, in the actual manufacturing process, the panel or the partition wall 6 may not be formed in a perfectly uniform shape. Thus, as shown in FIG. 2, gaps exist between the cells, and thus, the partition wall 6 plays a role. In this case, the charged particles generated when the driving voltage is applied may flow to neighboring cells through the gap.

In the plasma display panel according to the related art, a panel or a partition wall is not formed in a perfectly uniform shape in the manufacturing process, and there is a gap between each cell, and charged particles generated when a driving voltage is applied through the gap flow to neighboring cells. Therefore, there is a problem of generating a cross talk and thereby causing an erroneous discharge of the corresponding cell.

Accordingly, an object of the present invention is to provide a plasma display panel capable of preventing cross talk as charged particles flow to neighboring cells.

1 is a cross-sectional view showing the structure of a general plasma display panel

2 is a view for explaining the generation and flow of charged particles of the plasma display panel

3 is a cross-sectional view illustrating a structure of a plasma display panel according to a first embodiment of the present invention.

4 is a cross-sectional view illustrating a structure of a plasma display panel according to a second embodiment of the present invention.

Explanation of symbols for main parts of the drawings

1: glass substrate 2: dielectric layer

3: protective layer 4: sustaining electrode

5: discharge area 6: partition wall

7: ultraviolet ray 8: fluorescent layer

9: glass substrate 10: address electrode

21, 21 ', 31, 31': partition electrode

The present invention is formed between an upper substrate, a plurality of upper electrodes formed on the upper substrate, a lower substrate, a plurality of lower electrodes formed on the lower substrate, and between the lower substrate and the upper substrate with each lower electrode therebetween. In the plasma display panel having a plurality of partitions, an electrode is formed in a predetermined region of the inner or outer surface of each partition.

The present invention is formed between an upper substrate, a plurality of upper electrodes formed on the upper substrate, a lower substrate, a plurality of lower electrodes formed on the lower substrate, and between the lower substrate and the upper substrate with each lower electrode therebetween. In the plasma display panel having a plurality of partitions, an electrode is formed in a predetermined region of each partition.

The present invention is formed between an upper substrate, a plurality of upper electrodes formed on the upper substrate, a lower substrate, a plurality of lower electrodes formed on the lower substrate, and between the lower substrate and the upper substrate with each lower electrode therebetween. In the plasma display panel having a plurality of partitions, an electrode is formed in a predetermined region of the outer surface of each partition.

Hereinafter, the first and second embodiments of the plasma display panel according to the present invention will be described in detail with reference to the accompanying drawings.

3 is a cross-sectional view illustrating a structure of a plasma display panel according to a first embodiment of the present invention, and FIG. 4 is a cross-sectional view illustrating a structure of a plasma display panel according to a second embodiment of the present invention.

First embodiment

As shown in FIG. 3, the first embodiment of the plasma display panel according to the present invention is largely divided into an upper structure and a lower structure.

First, the upper structure consists of a pair of scan electrodes and a common electrode on the surface of the front glass substrate 1 to form a sustain electrode 4 for maintaining a discharge, and a dielectric layer 2 on the sustain electrode 4. ) Is formed. A protective layer 3 is formed on the dielectric layer 2.

On the other hand, in the lower structure, an address electrode 10 for driving the initial discharge of the sustain electrode 4 is formed on the rear glass substrate 9, and the partition wall 6 is formed with the address electrode 10 interposed therebetween. do.

In this case, barrier electrodes 21 and 21 ′ are formed in a predetermined region inside the barrier rib 6 to prevent the charged particles from flowing to neighboring cells through a gap generated due to the non-uniformity of the barrier rib 6.

The fluorescent layer 8 is formed on the entire surface of the address electrode 10 including the partition wall 6, the partition electrodes 21, 21 ′, and the glass substrate 9.

When a driving voltage is applied to the sustain electrode 4 of the plasma display panel configured as described above, a predetermined voltage is also applied to the partition electrodes 21 and 21 ′, whereby the partition electrodes 21 and 21 ′ are charged with the corresponding polarities. .

At this time, the partition electrodes 21 and 21 ′ charge both of the partition electrodes 21 and 21 ′ based on one cell to '+' or '-', or the partition electrode 21 on one side is' It is charged with + 'and the other partition wall electrode 21' is charged with '-'.

Accordingly, charged particles generated when a driving voltage is applied to the sustain electrode 4 are attracted to the partition electrode 21 or the opposite partition wall electrode according to the electromagnetic characteristics of the partition electrodes 21 and 21 ′. Moving in the direction of (21 ') does not flow to the neighboring cells, so eventually crosstalk between the cells is prevented.

Second embodiment

The second embodiment of the plasma display panel according to the present invention is largely divided into an upper structure and a lower structure, as shown in FIG.

First, the upper structure consists of a pair of scan electrodes and a common electrode on the surface of the front glass substrate 1 to form a sustain electrode 4 for maintaining a discharge, and a dielectric layer 2 on the sustain electrode 4. ) Is formed. A protective layer 3 is formed on the dielectric layer 2.

On the other hand, in the lower structure, an address electrode 10 for driving an initial discharge of the sustain electrode 4 is formed on the rear glass substrate 9, and a partition wall 6 is formed with the address electrode 10 interposed therebetween. do.

In this case, barrier electrodes 31 and 31 ′ are formed in a predetermined region of the outer surface of the barrier rib 6 to prevent the charged particles from flowing to neighboring cells through a gap generated due to the non-uniformity of the barrier rib 6.

The fluorescent layer 8 is formed on the entire surface of the address electrode 10 including the partition 6, the partition electrodes 31, 31 ′, and the glass substrate 9.

When a driving voltage is applied to the sustain electrode 4 of the plasma display panel configured as described above, a predetermined voltage is also applied to the partition electrodes 31 and 31 ′, whereby the partition electrodes 31 and 31 ′ are charged with the corresponding polarity. .

Accordingly, charged particles generated when a driving voltage is applied to the sustain electrode 4 are attracted to the partition electrode 31 or the opposite partition electrode according to the electromagnetic characteristics of the partition electrodes 31 and 31 ′. Moving in the (31 ') direction to prevent flow to the neighboring cells, eventually crosstalk between the cells is prevented.

Plasma display panel according to the present invention has the effect of improving the product operation characteristics by forming an electrode in a predetermined region of the partition wall to prevent cross-talk through the gap between the cells generated by the non-uniformity of the partition wall and thereby mis-discharge.

Claims (5)

An upper substrate, a plurality of upper electrodes formed on the upper substrate, a lower substrate, a plurality of lower electrodes formed on the lower substrate, and between the lower substrate and the upper substrate with each lower electrode therebetween In the plasma display panel having a plurality of partitions formed, And an electrode is formed in a predetermined region of each of the partition walls. An upper substrate, a plurality of upper electrodes formed on the upper substrate, a lower substrate, a plurality of lower electrodes formed on the lower substrate, and between the lower substrate and the upper substrate with each lower electrode therebetween In the plasma display panel having a plurality of partitions formed, And an electrode is formed in a predetermined region within each of the barrier ribs. The method of claim 2, And an electrode formed in each of the partition walls is charged with the same polarity. The method of claim 2, And an electrode formed inside the barrier ribs facing each other among the barrier ribs is charged with different polarities. An upper substrate, a plurality of upper electrodes formed on the upper substrate, a lower substrate, a plurality of lower electrodes formed on the lower substrate, and a partition wall formed between the lower substrate and the upper substrate with the lower electrode interposed therebetween A plasma display panel having And an electrode is formed in a predetermined region of the outer wall of the barrier rib.