KR100692038B1 - Plasma Display Panel - Google Patents

Abstract

The present invention forms one or more holes and two or more protruding electrodes in transparent electrodes of R, G, and B subpixels having the same area to compensate for the equivalent color temperature and improve luminance. In addition, the present invention relates to an electrode structure of a plasma display panel capable of reducing the sheet resistance of a transparent electrode and at the same time lowering power consumption to improve driving characteristics of the panel.

The present invention relates to a front substrate having a plurality of sustain electrode pairs formed by pairing a scan electrode and a sustain electrode, a rear substrate having a plurality of address electrodes arranged in a direction crossing the plurality of sustain electrode pairs, between a front substrate and a rear substrate. A plasma display panel including partition walls arranged at regular intervals to partition R, G, and B subpixels, wherein the areas of the R, G, and B subpixels are the same, and any one of the R, G, and B subpixels is disposed. The length of the transparent electrode parallel to the longitudinal direction of the bus electrode formed on the subpixel is longer than the length of the transparent electrode parallel to the longitudinal direction of the bus electrode formed on the other two subpixels, and the transparent electrode is connected to the scanning bus electrode and is sustained. The second protrusion electrode protruding in the direction of the scanning bus electrode connected to the first protruding electrode protruding in the direction of the bus electrode and the sustain bus electrode; It includes a one or more holes, the first protruding electrode and the second protruding electrode may be formed to cross each other.

B subpixel, transparent electrode, first projection electrode, second projection electrode, hole, sheet resistance, color temperature

Description

Plasma Display Panel

1 is a view showing the structure of a conventional three-electrode AC surface discharge type plasma display panel.

2 is a view showing a structure in which the areas of the R, G, and B subpixels of the conventional three-electrode AC surface discharge type plasma display panel are different from each other.

3 is a view showing a structure in which the areas of the R, G, and B subpixels of the three-electrode AC surface discharge type plasma display panel according to the present invention are the same.

***** Explanation of symbols for the main parts of the drawing *****

310a, 310b, 310c: R, G, B subpixels 320a, 320b: bus electrodes

340: partition wall 360a, 360b, 360c: transparent electrode

360a ₁ , 360b ₁ , 360c ₁ : first projection electrode 360a ₂ , 360b ₂ , 360c ₂ : second projection electrode

380a, 380b, 380c: discharge space 390a, 390b, 390c: hole

The present invention relates to a plasma display panel, and more particularly, to an electrode structure of a plasma display panel.

In general, a plasma display panel (hereinafter referred to as "PDP") displays an image including a character or a graphic by emitting phosphors by 147 nm ultraviolet rays generated when a He + Xe or Ne + Xe inert mixed gas is discharged. Done.

Such a PDP is not only thin and easy to enlarge, but also greatly improved in quality due to recent technology development.

In particular, the three-electrode AC surface discharge type PDP has advantages of low voltage driving and long life because wall charges are accumulated on the surface during discharge and protect the electrodes from sputtering caused by the discharge.

1 is a view showing the structure of a conventional three-electrode AC surface discharge type plasma display panel. Referring to FIG. 1, in the three-electrode AC surface discharge type PDP 100, a front substrate 10, which is a display surface on which an image is displayed, and a rear substrate 20 forming a rear surface are coupled in parallel with a predetermined distance therebetween.

The front substrate 10 is made of a scan electrode 30Y and a sustain electrode 30X, that is, a transparent electrode 16a formed of a transparent ITO material and a metal material to mutually discharge one pixel at a lower side and maintain light emission of the cell. The scan electrode 30Y provided with the bus electrode 16b and the sustain electrode 30X provided in pairs are formed in pairs.

The sustain electrode 30X is covered by a dielectric layer 11 which limits the discharge current and insulates the electrode pairs, and protects the upper surface of the dielectric layer 11 by depositing magnesium oxide (MgO) to facilitate the discharge condition. Layer 12 is formed.

The rear substrate 20 has a plurality of discharge spaces, that is, a stripe type (or well type) barrier rib 23 for forming a cell is arranged in parallel with each other and the address discharge is performed at the intersection with the sustain electrode 30X. A plurality of address electrodes 22 which are performed to generate vacuum ultraviolet rays are arranged in parallel with the partition wall 23.

In addition, a dielectric layer 21 is formed on an upper surface of the address electrode 22, and R, G, and B fluorescent layers 25 that emit visible light for displaying an image during address discharge are coated on the upper surface of the dielectric layer 21. .

2 is a view showing a structure in which the areas of the R, G, and B subpixels of the conventional three-electrode AC surface discharge type plasma display panel are different from each other. As shown in FIG. 2, R, G, and B subpixels 210a, 210b, and 210c having different areas form one discharge cell 210.

In addition, the scan bus electrode 220a and the sustain bus electrode 220b are formed on the partition wall 240 and are connected to the scan bus electrode 220a and the sustain bus electrode 220b. One discharge space 280a, 280b, and 280c is formed in each of the R, G, and B subpixels 210a, 210b, and 210c by 260c.

In this case, the area of the R, G, and B subpixels 210a, 210b, and 210c may be changed to compensate for the color temperature because the color temperature of the B subpixel 210c is low.

In addition, since the color temperature of the B subpixel 210c is low, the size of the transparent electrode 260c formed in the B subpixel 210c is larger than that of the R and G subpixels 210a and 210b. The color temperature of the subpixel 210c is compensated.

However, as described above, when the areas of the R, G, and B subpixels 210a, 210b, and 210c are different, the voltage margin is very disadvantageous on the discharge side, and difficulty in controlling the wall charge also on the driving side. .

In addition, when the size of the transparent electrode is large, the sheet resistance is increased to increase the power consumption. In addition, the discharge start voltage for driving operation of the panel is increased and jitter is increased, thereby deteriorating the overall driving characteristics of the panel.

The present invention is to solve the above problems, to form the same area of the R, G, B subpixel, to form one or more holes in the transparent electrode of the B subpixel, two or more first projection electrode and The second protruding electrodes are formed to cross each other to compensate for the equivalent color temperature of the B subpixels and to improve luminance.

In addition, the present invention provides an electrode structure of a plasma display panel capable of reducing the sheet resistance of the transparent electrode of the B subpixel and at the same time lowering power consumption to improve driving characteristics of the panel.

In order to achieve the above object, the present invention provides a front substrate in which a plurality of sustain electrode pairs are formed by pairing a scan electrode and a sustain electrode, and a rear substrate in which a plurality of address electrodes are arranged in a direction crossing the plurality of sustain electrode pairs. In a plasma display panel including partition walls arranged at regular intervals between a substrate and a rear substrate to partition R, G, and B subpixels, the areas of the R, G, and B subpixels are the same, and the R, G, and B subpixels are the same. The length of the transparent electrode parallel to the longitudinal direction of the bus electrode formed in one subpixel of the pixels is longer than the length of the transparent electrode parallel to the longitudinal direction of the bus electrode formed in the other two subpixels. A first projection electrode connected to the electrode and protruding in the direction of the sustain bus electrode and a second stone connected to the sustain bus electrode and protruding in the direction of the scan bus electrode It comprises an electrode and at least one hole, the first protruding electrode and the second protruding electrode may be formed to cross each other.

In addition, any one subpixel is characterized in that the B subpixel.

In addition, the transparent electrodes formed on each of the R, G, and B subpixels may include two or more protruding first and second protruding electrodes.

In addition, the transparent electrode formed on each of the R, G, and B subpixels may include one or more holes.

Further, the number of the first and second protrusion electrodes formed on one subpixel is greater than the number of the first and second protrusion electrodes formed on two different subpixels.

In addition, any one subpixel is characterized in that the B subpixel.

In addition, the number of holes formed in one subpixel is larger than the number of holes formed in the other two subpixels.

In addition, any one subpixel is characterized in that the B subpixel.

Hereinafter, with reference to the accompanying drawings will be described in detail a preferred embodiment of the present invention.

3 is a view showing a structure in which the areas of the R, G, and B subpixels of the three-electrode AC surface discharge type plasma display panel according to the present invention are the same. As shown in FIG. 3, R, G, and B subpixels 310a, 310b, and 310c having the same area are formed by forming one discharge cell 310.

In addition, the scan bus electrode 320a and the sustain bus electrode 320b are formed on the partition wall 340 and are connected to the scan bus electrode 320a and the sustain bus electrode 320b, and the transparent electrodes 360a, 360b, 360c), one discharge space 380a, 380b, 380c is formed in each of the R, G, and B subpixels 310a, 310b, and 310c.

In this case, the length of the transparent electrode 360c formed in the B subpixel 310C is greater than the length of the transparent electrodes 360a and 360b formed in the R and G subpixels 310a and 310b. That is, the lengths of the transparent electrodes 360a, 360b, and 360c are parallel to the longitudinal directions of the bus electrodes 320a and 320b and perpendicular to the longitudinal direction of the partition wall 340.

In addition, the transparent electrodes 360a, 360b, and 360c formed on the R, G, and B subpixels 310a, 310b, and 310c, respectively, are connected to the scan bus electrodes 320a to face the sustain bus electrodes 320b. The second protruding electrodes 360a ₂ , 360b ₂ , 360c connected to the protruding first protruding electrodes 360a ₁ , 360b ₁ , 360c ₁ and the sustain bus electrodes 320b protrude toward the scanning bus electrodes 320a. ₂ ) and one or more holes 390a, 390b, 390c.

At this time, two or more first protrusion electrodes 360a ₁ , 360b ₁ , 360c ₁ and second protrusion electrodes 360a ₂ , 360b ₂ , 360c ₂ protrude, and the first protrusion electrodes 360a ₁ , 360b ₁ , 360c ₁ ) and the second protrusion electrodes 360a ₂ , 360b ₂ , and 360c ₂ are formed to cross each other.

Here, the number of the protruding electrodes 360c ₁ formed in the B subpixel 310c is greater than the number of the protruding electrodes 360a ₁ and 360b ₁ formed in the R and G subpixels 310a and 310b. This is to cause stronger discharge to the transparent electrode 360c to improve the color temperature and brightness of the B subpixel 310c.

On the other hand, the holes 390a, 390b, and 390c formed in the transparent electrodes 360a, 360b, and 360c described above are preferably 'polygonal', but may also have an 'elliptical' or 'circular' shape.

At this time, the number of holes 390c formed in the transparent electrode 360c of the B subpixel 310c is equal to the number of holes 390a and 390b formed in the transparent electrodes 360a and 360b of the R and G subpixels 310a and 310b. More than the number is formed to reduce the sheet resistance generated when the size of the transparent electrode 360c is increased, and to reduce power consumption.

As such, when the area of the R, G, and B subpixels is the same, and the size of the transparent electrode of the B subpixel is increased and the number of the first and second protrusion electrodes is formed, the color temperature of the B subpixel is reduced. It can be compensated and the brightness is also improved.

In addition, the voltage margin characteristic is improved on the discharge side, and the wall charge can be easily controlled on the driving side, thereby reducing the sheet resistance and lowering the power consumption.

In addition, since the discharge start voltage for the driving operation of the panel is lowered, jitter is reduced to improve the overall driving characteristics of the panel.

As described above, it will be understood by those skilled in the art that the above-described technical configuration may be implemented in other specific forms without changing the technical spirit or essential features of the present invention. Therefore, the above-described embodiments are to be understood as illustrative and not restrictive in all respects, and the scope of the present invention is indicated by the appended claims rather than the detailed description, and the meaning and scope of the claims and All changes or modifications derived from the equivalent concept should be interpreted as being included in the scope of the present invention.

As described above, in the electrode structure of the plasma display panel, one or more holes and two or more protruding electrodes are formed in transparent electrodes of R, G, and B subpixels having the same area to compensate for equivalent color temperature and improve luminance. Let's do it. In addition, it is possible to improve the driving characteristics of the panel by reducing the sheet resistance of the transparent electrode and at the same time lowering the power consumption.

Claims (8)

A front substrate on which a plurality of sustain electrode pairs formed by pairing a scan electrode and a sustain electrode are arranged, a back substrate on which a plurality of address electrodes are arranged in a direction crossing the plurality of sustain electrode pairs, between the front substrate and the back substrate A plasma display panel comprising partition walls arranged at regular intervals to partition R, G, and B subpixels. The areas of the R, G, and B subpixels are the same, The length of the transparent electrode parallel to the longitudinal direction of the bus electrode formed in any one of the R, G, and B subpixels is longer than the length of the transparent electrode parallel to the longitudinal direction of the bus electrode formed in the other two subpixels. , The transparent electrode is connected to the scanning bus electrode and protrudes in the direction of the sustain bus electrode and the second projection electrode and one or more holes connected to the sustain bus electrode protruding in the direction of the scanning bus electrode. Equipped, And the first and second protruding electrodes are formed to cross each other. The method of claim 1, Wherein the one subpixel is a B subpixel. The method of claim 1, And the transparent electrodes formed on each of the R, G, and B subpixels include first and second protruding electrodes protruding at least two. delete The method of claim 3, Wherein the number of the first and second protruding electrodes formed on the one subpixel is greater than the number of the first and second protruding electrodes formed on the other two subpixels. Display panel. The method of claim 5, Wherein the one subpixel is a B subpixel. The method of claim 1, And the number of holes formed in the one subpixel is greater than the number of holes formed in the other two subpixels. The method of claim 7, wherein Wherein the one subpixel is a B subpixel.

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