JP3120133B2 - Plasma display panel - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a plasma display panel (hereinafter abbreviated as PDP) using discharge light emission.

[0002]

2. Description of the Related Art A conventional surface discharge type ACPDP is configured as shown in FIG. In FIG. 3, first, a first electrode (address electrode) 3 is arranged on a first flat plate 1,
A dielectric layer 7 is formed on the entire surface so as to cover it.
A second electrode 5 is disposed on the second electrode 5 so as to be orthogonal to the first electrode 3, and a dielectric layer 7 is formed again so as to cover the second electrode 5, thereby forming a discharge cell. Here, 7a is a protective film.

In recent years, a three-electrode surface-discharge type ACPDP as shown in FIG. 4 has been manufactured. That is, the first flat plate 1
The sustain electrode 5a and the scan electrode 5b are arranged in parallel on the upper side, and the selection of the discharge cell is performed by the address electrode 3.

[0004]

However, in the former configuration, it is necessary to alternately form the electrodes and the dielectric layers twice, which complicates the manufacturing process. For it,
In the latter configuration, the sustain electrode 5a, the scan electrode 5b, and the dielectric layer 7 may be formed only once, but when driving the panel, it is necessary to use the memory function of the panel without fail. High technology is required.

An object of the present invention is to solve the above-mentioned problems of the prior art, and an object of the present invention is to provide a plasma display panel capable of simplifying the manufacturing process, improving the yield, and reducing the cost. .

[0006]

In order to achieve the above object, the present invention relates to a first electrode group provided on a first flat plate, and a group of first electrodes each being parallel to the first electrode and provided for each discharge cell. A second electrode group, a dielectric layer covering the first electrode group and the second electrode group, and a second electrode group disposed on the dielectric layer at right angles to the first electrode. An extraction electrode connected to the second electrode group through a plurality of through holes provided in the dielectric layer, and a phosphor disposed on the second flat plate via a partition partitioning the discharge cell. You.

[0007]

According to this structure, the first electrode and the second electrode are formed on the same plane, and a dielectric layer is formed on the first electrode and the second electrode. And a two-electrode surface discharge type AC
Since it is a PDP, a refresh driving method that does not require the memory function of the panel can be adopted. The refresh driving method can be sufficiently used even if the precision of the panel structure and the manufacturing process is not high. As a result, the manufacturing process management can be simplified, the yield can be dramatically improved, and the dielectric layer protective material does not require special specifications.
It leads to cost reduction.

[0008]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Embodiments will be described below in detail with reference to the drawings. FIGS. 1 and 2 show a two-electrode surface discharge type ACPDP according to an embodiment of the present invention, in which 1 is a first flat plate, and 3 is a plurality of The first electrodes 5 are a plurality of second electrodes which are respectively arranged in parallel with the first electrode 3 and independently for each discharge cell. Reference numeral 7 denotes a dielectric layer that covers the group of the first electrode 3 and the group of the second electrode 5, and 6 is disposed on the dielectric layer 7 at right angles to the first electrode 3 and provided on the dielectric layer 7. The second electrode 5 through the plurality of through holes 8
Are connected to the extraction electrode. 4 is a discharge cell
Partitions 9 partitioning 10 are phosphors (R, G, B) disposed on the second flat plate 2 via the partition 4.

Here, the first electrode 3 and the second electrode 5 are used when the excitation light emission of the plasma display panel is viewed through the phosphor 9 (when viewed from the second flat plate 2 side; hereinafter, referred to as a transmission type). It is not necessary to be transparent, but when viewed from the first flat plate 1 side (hereinafter referred to as a reflection type), it must be transparent. In the present embodiment, the first electrode 3 and the second electrode 5 are made of ITO, which is a transparent conductive film, and formed in a predetermined shape by a photolithographic method in order to obtain a reflection type which is advantageous for improving the luminance.

In the embodiment, the second electrodes 5 are formed on both sides of the first electrode 3 in a strip shape. However, the first electrode 3 and the second electrode 5 may be paired one by one. Also ITO
In this case, the first electrode 3 is an elongated electrode, and therefore has a resistance value that cannot be ignored. Therefore, here
A bus line 3a is formed on the first electrode 3. It is desirable that the bus line 3a has a low sheet resistance.
r-Cu-Cr is used.

The dielectric layer 7 is formed by screen printing or the like. This dielectric layer 7 also needs to be transparent in the case of the reflection type. The dielectric layer 7 is provided with a through hole 8 for connecting the extraction electrode 6 and the second electrode 5. On the dielectric layer 7, in order to lower the discharge starting voltage and to suppress sputtering of the dielectric layer, M
A protective layer 7a represented by gO is formed.

The extraction electrode 6 is formed by screen printing or the like. The material of the extraction electrode 6 need not be specified as long as it is a conductive substance.

The partition 4 is formed so as to completely cover the extraction electrode 6, thereby forming a discharge cell 10. By doing so, erroneous discharge can be prevented and the aperture ratio can be improved.

The second flat plate 2 on which the phosphor 9 is formed is superimposed on the first flat plate 1 and closely adhered thereto. After the discharge cells are sealed and baked, the discharge gas is sealed.

[0015]

As described above in detail, according to the present invention, it is not necessary to use two dielectric layers in the two-electrode surface-discharge type ACDP, and the manufacturing process can be simplified. In addition, since it is of a two-electrode type and has a surface discharge type, a discharge area in a discharge cell can be widened, and luminance and electric characteristics can be improved. Further, a refresh driving method which does not use the memory function of the panel because it is a two-electrode type ACPDP can be adopted.
The refresh driving method can be used even if the accuracy of the panel structure and the manufacturing process is not high. This allows
The process management can be simplified, the yield can be dramatically improved, and the dielectric layer protective material does not require special specifications, leading to cost reduction.

[Brief description of the drawings]

FIG. 1 shows a two-electrode surface discharge type A according to an embodiment of the present invention.
FIG. 3 is a perspective view illustrating an internal configuration of a CPDP.

FIG. 2 is a plan view showing a positional relationship between the electrode groups.

FIG. 3 is a perspective view showing a main part of a conventional two-electrode ACDP.

FIG. 4 is a perspective view showing a configuration of a conventional three-electrode surface discharge type ACDP.

[Explanation of symbols]

1 ... 1st flat plate, 2 ... 2nd flat plate, 3 ... 1st
Electrode, 4 ... Partition wall, 5 ... Second electrode, 6 ... Lead-out electrode, 7 ... Dielectric layer, 8 ... Through hole, 9 ... Phosphor, 10 ... Discharge cell.

Claims (3)

(57) [Claims] 1. A surface-discharge type plasma display panel that performs discharge on the same plane, wherein a group of first electrodes disposed on a first flat plate and a group of first electrodes are respectively parallel to the first electrodes.
A second electrode group independently disposed for each discharge cell, a dielectric layer covering the first electrode group and the second electrode group, and a first electrode on the dielectric layer orthogonal to the first electrode. And an extraction electrode connected to the second electrode group through a plurality of through holes provided in the dielectric layer, and an extraction electrode disposed on a second flat plate via a partition partitioning a discharge cell. A plasma display panel comprising a phosphor. 2. The plasma display panel according to claim 1, wherein a partition partitioning the discharge cell is formed on the extraction electrode. 3. The plasma display panel according to claim 2, wherein the width of the partition formed on the extraction electrode is wider than the width of the extraction electrode.