KR100320479B1 - Plasma display panel - Google Patents

Abstract

The present invention is to provide a plasma display panel which can improve luminous efficiency and exhaust capacity, and improve contrast, wherein the upper electrode pairs formed on the first substrate intersect with the upper electrode pairs. A plasma display panel having cell regions defined at intersections with X electrodes formed on a second substrate, wherein the plasma display panel is formed on the second substrate to prevent crosstalk between adjacent cells on the left and right sides of the cell regions. And a plurality of second partitions formed on the second substrate and separated from the first partition to prevent crosstalk between the first partitions and the cells adjacent to the upper and lower sides of the cell regions. It is done.

Description

Plasma Display Panel {PLASMA DISPLAY PANEL}

The present invention relates to a plasma display panel, and more particularly, to a partition structure of a plasma display panel suitable for improving luminous efficiency and exhaust capability.

In general, a plasma display panel (PDP), which is a gas discharge display device, has a DC type, an AC type, and a hybrid type in which a DC type and an AC are combined according to the electrode structure thereof. Classified as The direct current type and the alternating current type are determined by whether the electrode is exposed to the discharge plasma. That is, in the direct current type, the electrode is directly exposed to the discharge plasma, and in the alternating current type, the electrode is indirectly coupled with the plasma through the dielectric. This difference appears as a difference in discharge phenomenon, and in the case of an alternating current type, charged particles formed by the discharge accumulate in the dielectric layer. In other words, electrons are accumulated in the dielectric layer on the positively charged electrode, and ions are accumulated in the dielectric layer on the negatively charged electrode.

1 is a layout diagram of a typical three-electrode surface discharge AC plasma display panel.

As shown in FIG. 1, the front substrate 1 and the rear substrate 1a are formed, and the Y electrode 2 and the Z electrode 3 are formed in the row direction, and the Y electrode 2 and the Z electrode are formed. The X electrode 4 is formed in the direction intersecting with (3).

The cell 5 is formed at the intersection of each electrode, the Y electrode 2 is used as a scan electrode, and used for scanning the screen, and the Z electrode 3 is used as a sustain electrode. It is used to maintain the discharge. The X electrode 4 is used for data input.

The X electrode 4 formed in each cell is connected to the X electrode driver to receive an address, and the Y electrode 2 is connected to the Y electrode driver to receive a scan voltage. The Z electrode 3 is connected to the Z electrode driver to receive a sustain voltage.

The X electrode 4, the Y electrode 2, and the Z electrode 3 are formed in a matrix form.

Hereinafter, a conventional plasma display panel having a barrier rib structure will be described with reference to the accompanying drawings.

FIG. 2 is a layout diagram of a plasma display panel according to a first exemplary embodiment, and has a structure employing a stripe type partition wall.

As shown in FIG. 2, a plurality of pairs of upper electrode pairs formed of the Y electrode 11 and the Z electrode 12 are formed in a row direction at a predetermined interval, and are formed in a direction crossing the upper electrode pairs and fixed to each other. Stripe-type partitions 13 having a spacing are formed, and an X electrode (not shown) is formed at the central portion between the partitions and the partitions.

Reference numeral '21' denotes a discharge region, and '22' denotes a discharge region.

The first embodiment of the present invention has excellent exhaust capacity, but since there are no partition walls at the upper and lower boundary portions of the cell, there is a lot of ultraviolet light loss and causes cross talk between neighboring cells.

3 is a layout diagram of a plasma display panel according to a second exemplary embodiment employing a well type partition structure.

The arrangement of the electrodes is similar to that of FIG. 2, but FIG. 2 is a partition wall formed only in a direction crossing the upper electrode pairs, whereas the plasma display panel shown in FIG. 3 is formed in a direction crossing the upper electrode pairs. The horizontal partition 13a is also formed in the direction in which the upper electrode pairs are formed.

For reference, a partition wall formed in a direction crossing the upper electrode pair is referred to as a vertical partition wall 13, and a partition wall formed in the same direction as the upper electrode pair is referred to as a horizontal partition wall 13a.

As can be seen from the layout diagram shown in FIG. 3, even when the well-type partition wall is employed, it can be seen that the four corner portions of the discharge region 21 are located far from the kitchen region 22.

The reason for employing the well-type partition walls is that when the stripe-type partition walls are employed, losses may occur and be wasted while the ultraviolet rays reaching the cell boundary portions are discharged.

That is, the ultraviolet rays generated by forming the horizontal partition wall 13a together with the vertical partition wall 13 may excite the phosphor formed on the horizontal partition wall to generate visible light, thereby preventing the waste of ultraviolet rays as much as possible. Cross talk could be prevented.

However, the plasma display panel according to the related art has the following problems.

First, the structure employing the stripe-type partition wall is easy to exhaust, but because of the ultraviolet light and visible light can move to the adjacent cell in the vertical direction, thereby causing mis-discharge and cross talk. In addition, since the edge portion of the discharge region is far from the discharging region, the luminance decreases.

Secondly, the structure employing the well-type partition wall can prevent cross talk between adjacent cells, but there is a risk of erroneous discharge caused by residual gas due to poor exhaust, and the edge of the discharge area is far from the kitchen area. Because of the separation, the brightness deterioration could not be prevented as in the structure employing the stripe type partition wall.

SUMMARY OF THE INVENTION The present invention has been made to solve the above problems of the prior art, and an object thereof is to provide a plasma display panel which can improve luminous efficiency and exhaust capacity and improve contrast.

1 is a layout of a typical three-electrode surface discharge AC plasma display panel

2 is a layout diagram of a plasma display panel according to a first embodiment of the present invention;

3 is a layout diagram of a plasma display panel according to a second exemplary embodiment employing a well type partition structure.

4 is a layout view of a plasma display panel according to an embodiment of the present invention.

5 is a layout view of a plasma display panel according to another embodiment of the present invention.

6 is a layout view of a plasma display panel according to another embodiment of the present invention.

7 is a layout view of a plasma display panel according to another embodiment of the present invention;

Explanation of symbols for main parts of the drawings

41: Y electrode 42: Z electrode

43 X electrode 44 First partition wall

44a: second bulkhead 45: kitchen area

The plasma display panel of the present invention for achieving the above object is defined at the intersection of the upper electrode pairs formed on the first substrate and the X electrode formed on the second substrate in the direction crossing the upper electrode pairs. A plasma display panel having cell regions, comprising: first partition walls formed on the second substrate to prevent crosstalk between cells adjacent to the left and right sides of the cell regions, and cells adjacent to the top and bottom sides of the cell regions; And a plurality of second partitions formed on the second substrate and separated from the first partition to prevent crosstalk therebetween.

Hereinafter, a plasma display panel of the present invention will be described with reference to the accompanying drawings.

4 is a layout diagram of a plasma display panel according to a first embodiment of the present invention, which is a plasma display panel having no black matrix layer.

First, the plasma display panel according to the first embodiment of the present invention is configured to form a plurality of partition walls having a predetermined distance from each other at the cell boundary in the vertical direction, and separate the partition walls from the vertical partition walls.

Therefore, since a plurality of partitions are formed at predetermined intervals, not only an exhaust passage can be secured but also the exhaust passage can be maximized by separating from the vertical partition.

The plasma display panel according to the first embodiment of the present invention will be described in more detail.

As shown in FIG. 4, the upper electrode pairs formed of the Y electrode 41 and the Z electrode 42 and formed in one direction, the X electrode 43 formed in the direction crossing the upper electrode pairs, and the First barrier walls 44 formed in a direction intersecting the upper electrode pairs on both sides of a cell region defined at an intersection of an upper electrode pair and the X electrode, and a center of the cell region. It is formed of a plurality of second partitions (44a) formed on the upper and lower portions and separated from the first partition (44).

Here, the second partitions 44a are formed in the same direction as the upper electrode pairs as shown in FIG. 4 or in the same direction as the first partitions 44 as shown in FIG. 5.

In addition, the first partitions 44 and the plurality of second partitions 44a are separated from each other and use a separated area as an exhaust passage.

In addition, since at least two second partitions 44a are formed and separated from each other, the second partitions 44a may use the separated area as an exhaust passage, thereby maximizing the exhaust capacity.

As such, by forming the first partition walls on the left and right sides and the second partition walls on the upper and lower sides as the center of the cell region, crosstalk that may occur between neighboring cells due to the charged particles using the second partition walls can be prevented. .

For reference, reference numeral '45' indicates a kitchen area.

6 to 7 are layout views of the plasma display panel according to the second embodiment of the present invention.

For reference, FIGS. 6 to 7 form a large width of the barrier rib in the boundary region between the cells to improve contrast and to secure an exhaust passage.

That is, a conventional plasma display panel configures a black matrix to improve contrast, but the second embodiment of the present invention can be applied to a plasma display panel when the black matrix is not used.

That is, the first partitions 44 are formed in a direction crossing the upper electrode pairs, and the second partitions 44a are formed to a sufficient width in the boundary area between the upper and lower cells between the first partitions 44. To improve contrast.

In addition, by changing the shape of the second partition wall 44a, it is possible to improve the contrast and to secure the exhaust passage as much as possible.

This will be described in more detail as follows.

As shown in FIG. 6, the plasma display panel according to the second embodiment of the present invention includes the upper electrode pairs formed in one direction and intersect the upper electrode pairs formed of the Y electrode 41 and the Z electrode 42. A first partition wall formed in a direction crossing the upper electrode pairs on both sides of a cell region defined at an intersection of the upper electrode pair and the X electrode; 44 and second partitions 44a formed at upper and lower portions of the cell region and separated from the first partition 44.

Here, as shown in FIG. 6, the second partition 44a has a rectangular shape or a portion facing the cell has a first width, and a central portion thereof has a second width smaller than the first width. It can also be configured to have.

When configured as shown in FIG. 6, it is more effective in terms of contrast, and when configured as shown in FIG. 7, it is more effective in terms of exhaust capacity.

For reference, reference numeral '45' indicates a kitchen area.

As described above, the plasma display panel of the present invention has the following effects.

By utilizing the ultraviolet rays generated in the discharge area to improve the brightness in the cell and forming a plurality of horizontal partition walls, the contrast is improved in the absence of the black matrix layer, and the upper and lower exhaust passages are formed compared to the simple well structure to maximize the exhaust capacity. have.

Claims (6)

A plasma display panel having cell regions defined at intersections of upper electrode pairs formed on a first substrate and X electrodes formed on a second substrate in a direction crossing the upper electrode pairs, First barrier ribs formed on the second substrate to prevent crosstalk between cells adjacent to left and right sides of the cell regions; And a plurality of second partition walls formed on the second substrate and separated from the first partition wall to prevent crosstalk between cells adjacent to the upper and lower sides of the cell regions. The plasma display panel of claim 1, wherein the plurality of second barrier ribs are formed along a direction in which the upper electrode pairs are formed. The plasma display panel of claim 1, wherein the plurality of second partitions are formed along a direction in which the first partitions are formed. A plasma display panel having cell regions defined at intersections of upper electrode pairs formed on a first substrate and X electrodes formed on a second substrate in a direction crossing the upper electrode pairs, A first barrier rib formed on the second substrate to prevent crosstalk between cells adjacent to left and right sides of the cell regions; And a second partition formed on the second substrate and separated from the first partition to prevent crosstalk between cells adjacent to the upper and lower sides of the cell regions. 5. The plasma display panel of claim 4, wherein the second partition wall has a first width at a portion of the second partition wall facing the upper and lower cells, and a central portion thereof has a second width smaller than the first width. The plasma display panel of claim 4, wherein the second partition wall has a rectangular shape.