JP2000133140A - Plasma display panel - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a plasma display panel designed to extract scanning electrodes an common electrodes from one side of the plasma display panel while equalizing the combined resistances of the scanning and the common electrodes up to each discharge cell. SOLUTION: In a plasma display panel, a plurality of scanning electrodes 5, a plurality of common electrodes 6 extending almost parallel to the scanning electrodes and placed at almost equal intervals to alternate with the scanning electrodes, a display area consisting of pixels arranged in the form of a matrix, and a drive circuit for processing signals of the scanning electrodes 5 and the common electrodes 6 are placed on one side of a glass substrate 3a. An extraction electrode 4 extending almost parallel to the common electrodes is provided outside the display area on the glass substrate and the common electrodes 6 are connected to the extraction electrode 4 whereby the wiring resistances of the scanning electrodes and the common electrodes from either of the pixels to the drive circuit are made almost equal.

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.

[0002]

2. Description of the Related Art A conventional plasma display panel will be described with reference to FIG. FIG. 5 is a plan view schematically illustrating a configuration of a conventional plasma display panel. Conventionally, as shown in FIG. 5, the common electrode 6 is all connected at the end opposite to the lead-out end of the scanning electrode 5, and the common electrode 6 is formed by using the non-display portions above and below the scanning / common electrode side glass substrate 3a. 6 was not drawn out to the same side as the scanning electrode 5.

[0003]

Therefore, if both the scan electrode 5 and the common electrode 6 are drawn out from one end of the plasma display panel, the combined resistance of the scan electrode 5 and the common electrode 6 up to each discharge cell is reduced. They cannot be equal. Therefore, in order to make the combined resistance values uniform, the scanning electrode 5 must be separately drawn from one end of the plasma display panel, and the common electrode 6 must be separately drawn from the opposite end, and connected to the respective driving circuits. As a result, the flexible substrates 2a and 2b and the drive circuit substrates 1a and 1b must be separately provided for extracting electrodes from the viewpoint of the configuration of the device, so that the number of components of the plasma display device increases and it is difficult to realize the device at low cost. There are drawbacks.

SUMMARY OF THE INVENTION The present invention has been made in view of the above-mentioned problems, and has as its main object to scan a common electrode of a plasma display panel while equalizing the scanning resistance of each discharge cell and the combined resistance of the common electrode. An object of the present invention is to provide a plasma display panel that is drawn out from one side.

[0005]

In order to achieve the above object, the present invention provides, in a first aspect, a plurality of scanning electrodes and signal electrodes arranged in a matrix in a substrate,
It has a display area in which pixels formed in an area surrounded by the scanning electrodes and the signal electrodes are arranged in a matrix, extends substantially in parallel with the scanning electrodes, and alternately with the scanning electrodes at substantially equal intervals. A plasma display panel comprising a common electrode disposed, wherein the common electrodes are connected to each other at ends thereof, outside the display area on the substrate,
An extraction electrode extending substantially in parallel with the common electrode is provided, and the common electrode and the extraction electrode connected to each other at the ends are connected.

According to a second aspect of the present invention, in a second aspect, a plurality of scanning electrodes and signal electrodes are arranged in a matrix in a substrate, and pixels formed in a region surrounded by the scanning electrodes and the signal electrodes are provided. It has a display area arranged in a matrix, extends substantially parallel to the scanning electrodes, is disposed at substantially equal intervals alternately with the scanning electrodes, and includes a common electrode connected to each other at an end thereof, A driving circuit for processing signals of the scanning electrode and the common electrode is provided outside the substrate, a plasma display panel, outside the display area on the substrate, substantially in parallel with the common electrode. A lead electrode that extends and is connected to the common electrode that is connected to each other at an end portion, and is provided at any pixel on the matrix in a path connected to the pixel and transmitting a signal to the drive circuit. And the resistance value of the scanning electrodes that, as the sum of the resistance of the common electrode in the path that is connected to the pixel for transmitting signals to the driving circuit are substantially equal, in which the extraction electrode is disposed.

Further, according to a third aspect of the present invention, in a third aspect, there are provided a plurality of scanning electrodes and signal electrodes arranged in a matrix in a substrate, and a pixel formed in a region surrounded by the scanning electrodes and the signal electrodes is provided. It has a display area arranged in a matrix, extends substantially parallel to the scanning electrodes, is disposed at substantially equal intervals alternately with the scanning electrodes, and includes a common electrode connected to each other at an end thereof, A driving circuit for processing signals of the scanning electrode and the common electrode is provided outside the substrate, a plasma display panel, outside the display area on the substrate, substantially in parallel with the common electrode. A drive circuit that extends and is connected to the common electrode that is connected to each other at an end, and that processes a signal transmitted from the pixel via a scan electrode; A driving circuit for processing a signal transmitted by reason, but those that are both disposed on one side of the substrate.

In the present invention, the width of the extraction electrode may be larger than the width of the common electrode, or the thickness of the extraction electrode may be larger than the thickness of the common electrode. Further, a groove having a predetermined depth is provided in the extraction electrode formation region of the substrate, and the thickness of the extraction electrode is made larger than the thickness of the common electrode, and the height from the substrate is extracted. It is preferable that the electrode and the common electrode be substantially equal.

[0009]

BEST MODE FOR CARRYING OUT THE INVENTION In a preferred embodiment of the plasma display panel according to the present invention, a plurality of scanning electrodes (5 in FIG. 1) are provided on a glass substrate (3a in FIG. 1).
A common electrode (6 in FIG. 1) extending substantially parallel to the scanning electrodes and arranged at substantially equal intervals alternately with the scanning electrodes; a display region including pixels arranged in a matrix; A plasma display panel in which a driving circuit (1 in FIG. 1) for processing a signal of an electrode is disposed on one side of a glass substrate, and is provided outside a display area on the glass substrate in substantially parallel with a common electrode. By providing an extended lead electrode (4 in FIG. 1) and connecting the common electrode and the lead electrode, the wiring resistance of the scanning electrode and the common electrode from any pixel to the drive circuit is made substantially equal.

In this manner, all the common electrodes are connected at the end opposite to the scanning electrode lead-out end, and are pulled out to the panel end on the same side as the scanning electrodes by the lead-out electrodes provided at the upper and lower ends of the panel or at both side ends. With this configuration, it is possible to scan from the panel drive circuit to each of the discharge cells, and to extract both the common electrode and the common electrode from one side of the panel without causing irregularities in the combined resistance value of the common electrode. Therefore, the electrode-leading flexible substrate and the drive circuit board, which are attached to both ends of the conventional plasma display panel, can be attached to one end of the plasma display panel, thereby simplifying the configuration of the plasma display device. it can.

[0011]

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a block diagram showing an embodiment of the present invention;

[Embodiment 1] A plasma display panel according to a first embodiment of the present invention will be described with reference to FIGS. FIG. 1 is a plan view schematically showing an electrode structure of a scanning / common side glass substrate of a plasma display panel according to a first embodiment of the present invention, and FIG. 2 is an electrode structure of a data electrode side glass substrate. FIG. 2 is a plan view schematically showing FIG.
As shown in FIG. 3, scanning electrodes 5 and common electrodes 6 are alternately arranged in parallel on the scanning / common side glass substrate 3. The scanning electrodes 5 are all independent, are separately drawn to the left end of the panel, and are connected to the drive circuit board 1 via the flexible board 2.

On the other hand, the common electrode 6 is all connected at the right end of the panel, and further connected to the extraction electrode 4 provided at the non-display portion at the upper and lower ends of the glass substrate, and is pulled out to the left end of the panel. Like the scanning electrode 5, the flexible substrate 2 is connected to the drive circuit board 1 via the flexible board 2.

The operation of this embodiment will be described below.
The light emission of the three-electrode surface discharge type plasma display panel is performed by scanning electrodes 5 and common electrodes 6 provided on the scanning / common side glass substrate 3.
The ultraviolet light generated by the discharge occurring between the light source and the fluorescent material strikes the phosphor applied to the data-side glass substrate 3b, and is generated by generating visible light. Here, in order to obtain the discharge characteristics between the scan electrode 5 and the common electrode 6 uniformly over the entire surface of the plasma display panel, the combined resistance value of the scan electrode 5 and the common electrode 6 from the drive circuit to each discharge cell is determined. It is necessary to make them equal so that the voltage drop obtained by the product of the discharge current and the combined resistance value becomes uniform.

In order to satisfy this requirement, conventionally, the scanning electrode 5 and the common electrode 6 are configured to be drawn out from the opposite sides (the sides facing each other) of the glass substrate 3, and from each cell to the scanning and common electrode lead-out portions. Was made constant over the entire surface of the plasma display panel.

However, in this method, the electrodes must be taken out from both sides of the glass substrate 3, and the drive circuit must also be scanned and divided into separate circuit boards on the common electrode side and placed near the electrode take-out portion. Was. Therefore, the number of components has increased, which has been an obstacle to configuring the plasma display device at low cost.

On the other hand, in the plasma display panel of this embodiment shown in FIG. 1, the common electrodes 6 are all connected to each other at the opposite end of the electrode lead-out portion, and the upper and lower ends of the scanning / common electrode side glass substrate 3a Are drawn out to the same end face as the drawing side of the scanning electrode 5 by the drawing electrode 4 provided in the non-display portion.

Further, considering the combined resistance of the scan electrode 5 and the common electrode 6 up to each discharge cell, the electrode resistance from each discharge cell on the glass substrate 3a to the portion where the scan electrode 5 is taken out is determined by the scan electrode. 5, the electrode resistance value from each discharge cell to the common electrode 6 extraction portion decreases as the distance from the electrode extraction portion increases, so that the scanning from each discharge cell to the electrode extraction portion increases. The total resistance of the common electrode is kept constant over the entire surface of the plasma display panel.

In the case of such an electrode structure, the wiring resistance is increased by the amount of the extraction electrode 4.
This does not pose a problem if the resistance is lowered by making the width sufficiently wide.

As described above, the common electrode 6 is drawn out to the panel end on the same side as the scanning electrode 5 by the extraction electrodes 4 provided at the upper and lower ends of the panel, so that the scanning from the panel driving circuit to each discharge cell is performed. The combined resistance of the electrode 5 and the common electrode 6 is kept constant, and the scanning electrode 5 and the common electrode 6
Can be pulled out from one end of the panel, so that the flexible substrate and the driving circuit board can be concentratedly attached to one end of the plasma display panel, and the configuration of the plasma display device can be simplified. .

Embodiment 2 A second embodiment of the present invention will be described with reference to FIG. FIG. 3 is a perspective view for explaining the structure of the plasma display panel according to the second embodiment. The basic configuration of this embodiment is the same as that of the first embodiment described above, except that the extraction electrode provided in the non-display portion is further improved.

As shown in FIG. 3, in order to reduce the resistance value of the extraction electrode 4 where the entire current of the common electrode is concentrated, not only the width of the extraction electrode 4 is increased, but also the width of the extraction electrode 4 is larger than that of the scanning electrode 5 and the common electrode 6. Also, the resistance value is further reduced by increasing the electrode thickness. However, in the electrode lead portion, the scanning electrode and the electrode thickness are made uniform to facilitate the subsequent process.

As described above, by decreasing the resistance value of the extraction electrode 4, it is possible to suppress an increase in the combined resistance value of the scanning electrode 5 and the common electrode 6 from the panel drive circuit to each discharge cell to a small value. .

[Embodiment 3] A third embodiment of the present invention will be described with reference to FIG. FIG. 4 is a perspective view for explaining the structure of the plasma display panel according to the third embodiment. The basic configuration of this embodiment is the same as that of the above-described first or second embodiment, and the lead electrode provided in the non-display portion is obtained by improving the second embodiment by another method. is there.

In the second embodiment, the thickness of the extraction electrode 4 is increased. However, at the end of the glass substrate, the film pressure of the scanning electrode 5 or the common electrode 6 and the extraction electrode 4 is made substantially equal, and the scanning electrode 5 Alternatively, the height of the common electrode 6 and the extraction electrode 4 from the glass substrate 1 is substantially equal. In the third embodiment, as shown in FIG. 4, by forming a groove in the glass substrate 1 before forming the extraction electrode 4, the thickness of the extraction electrode 4 is increased so that the resistance value is increased. While maintaining the effect of lowering the height, the height with the scanning electrode 5 or the common electrode 6 can be made equal to facilitate the subsequent process. As described above, according to the configuration of the present embodiment, the same effects as those of the first or second embodiment can be obtained.

[0026]

As described above, according to the present invention,
The combined resistance from the electrode lead-out portion to each discharge cell is substantially equal to prevent the drive voltage applied to each discharge cell during light emission discharge from being uneven, and to simplify the configuration of the plasma display device. This has the effect that it can be performed.

The reason is that all the common electrodes are connected at the end opposite to the scanning electrode lead-out end, and lead-out is provided at the upper and lower ends of the panel so as to lead to the same panel end as the scanning electrode. Because.

[Brief description of the drawings]

FIG. 1 is a plan view illustrating an electrode structure of a plasma display panel according to a first embodiment of the present invention.

FIG. 2 is a plan view showing an electrode structure on a data electrode side of the plasma display panel according to the first embodiment of the present invention.

FIG. 3 is a perspective view illustrating an electrode structure of a plasma display panel according to a second embodiment of the present invention.

FIG. 4 is a perspective view illustrating an electrode structure of a plasma display panel according to a third embodiment of the present invention.

FIG. 5 is a plan view showing an electrode structure of a conventional plasma display panel.

[Explanation of symbols]

 Reference Signs List 1 drive circuit board 1a drive circuit board for scan electrode 1b drive circuit board for common electrode 1c drive circuit board for data electrode 2 flexible board 2a flexible board for scan electrode 2b flexible board for common electrode 3 glass substrate 3a glass for scan / common electrode side Substrate 3b Data electrode side glass substrate 4 Lead electrode 5 Scan electrode 6 Common electrode 7 Data electrode

Claims (6)

[Claims] A plurality of scanning electrodes and signal electrodes arranged in a matrix on a substrate, and a display area in which pixels formed in a region surrounded by the scanning electrodes and the signal electrodes are arranged in a matrix. A plasma display panel, comprising: a common electrode extending substantially in parallel with the scan electrode and alternately arranged at substantially equal intervals with the scan electrode, and the common electrodes are connected to each other at their ends. Including an extraction electrode extending substantially in parallel with the common electrode outside the display area on the substrate, wherein the common electrode and the extraction electrode connected to each other at the end are connected to each other; A plasma display panel characterized by the above-mentioned. 2. A semiconductor device comprising: a plurality of scanning electrodes and signal electrodes arranged in a matrix on a substrate; and a display area in which pixels formed in a region surrounded by the scanning electrodes and the signal electrodes are arranged in a matrix. A common electrode extending substantially in parallel with the scan electrode, arranged alternately at substantially equal intervals with the scan electrode, and connected to each other at an end thereof; and a signal of the scan electrode and the common electrode is provided. A plasma display panel, wherein a driving circuit for processing is disposed outside the substrate, and extends substantially parallel to the common electrode outside the display area on the substrate, and is connected to each other at an end. A lead electrode connected to the common electrode, and at any pixel on the matrix, a resistance value of a scan electrode in a path connected to the pixel and transmitting a signal to the driving circuit; As the sum of the resistance of the common electrode in the path for transmitting the signal to the connected said drive circuit are substantially equal, the extraction electrode is disposed, a plasma display panel, characterized in that. 3. A display area comprising a plurality of scanning electrodes and signal electrodes arranged in a matrix on a substrate, and a display area in which pixels formed in an area surrounded by the scanning electrodes and the signal electrodes are arranged in a matrix. A common electrode extending substantially in parallel with the scan electrode, arranged alternately at substantially equal intervals with the scan electrode, and connected to each other at an end thereof; and a signal of the scan electrode and the common electrode is provided. A plasma display panel, wherein a driving circuit for processing is disposed outside the substrate, and extends substantially parallel to the common electrode outside the display area on the substrate, and is connected to each other at an end. A drive circuit for processing a signal transmitted from the pixel via a scanning electrode, and a signal processing circuit for processing a signal transmitted from the pixel via a common electrode. A plasma display panel, wherein the driving circuit, but are both disposed on one side of the substrate, the. 4. The plasma display panel according to claim 1, wherein the width of the extraction electrode is larger than the width of the common electrode. 5. The semiconductor device according to claim 1, wherein the thickness of the lead electrode is larger than the thickness of the common electrode.
The plasma display panel according to any one of the above. 6. A groove having a predetermined depth is formed in the extraction electrode forming region of the substrate, and the thickness of the extraction electrode is made larger than the thickness of the common electrode, and the height from the substrate is reduced. 4. The plasma display panel according to claim 1, wherein the extraction electrode and the common electrode are substantially equal.