KR100667590B1 - Plasma Display Panel - Google Patents

Abstract

The present invention relates to a structure of a plasma display panel, and more particularly, to a structure of a plasma display panel for improving color temperature characteristics by changing structures of electrodes and partitions.

The present invention is a plasma including a transparent electrode and a bus electrode formed on the front substrate and the rear substrate, and partition walls disposed between the front substrate and the rear substrate to partition the R, G, B subpixels (red, green, blue). The display panel of claim 1, wherein the partition wall partitioning the subpixel includes a first partition wall, a second partition wall, a third partition wall, and a fourth partition wall having a constant upper width of the partition wall, and at least one of the partition walls is formed by bending. The size of at least one subpixel among the G, B subpixels is different from the size of the remaining subpixels.

Sizes of barrier ribs, transparent electrodes, address electrodes and subpixels

Description

Plasma Display Panel

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

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

FIG. 2A illustrates a barrier rib structure of an AC surface discharge plasma display panel according to a first embodiment of the present invention.

2b shows a second embodiment according to the invention;

2c shows a third embodiment according to the invention;

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

210a, 210b: bus electrodes 220a, 220b, 220c: address electrodes

230a, 230b, 230c: transparent electrodes 250a, 250b, 250c: R, G, B subpixels

270a, 270b, 270c, 270d: bulkhead

The present invention relates to a structure of a plasma display panel, and more particularly, to a structure of a plasma display panel for improving color temperature characteristics by changing structures of electrodes and partitions.

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.

1A is a diagram showing the structure of a conventional three-electrode AC surface discharge type plasma display panel. As shown, in the three-electrode AC surface discharge type PDP 100, the front glass substrate 10, which is the display surface on which an image is displayed, and the rear glass substrate 20 constituting the rear surface are coupled in parallel with a predetermined distance therebetween.

The front glass substrate 10 is formed of a scan electrode 30Y and a sustain electrode 30X, ie, a transparent electrode 16a formed of a transparent ITO material and a metal material to maintain light emission of cells by mutual discharge in one pixel below. The scan electrode 30Y and the sustain electrode 30X provided by the bus electrode 16b manufactured as a pair are formed in pairs. The sustain electrode 30X is covered by a dielectric layer 12 that limits the discharge current and insulates the electrode pairs, and a protective layer in which magnesium oxide (MgO) is deposited on the top surface of the dielectric layer 12 to facilitate discharge conditions. (13) is formed.

The rear glass substrate 20 generates vacuum ultraviolet rays by performing address discharge at a portion where the plurality of discharge spaces, that is, the partition walls 21 for forming the cells, are arranged in parallel and intersect with the sustain electrode 30X. A plurality of address electrodes 22 are arranged in parallel with the partition wall 21. In addition, an upper surface of the rear substrate 20 is coated with R, G, and B fluorescent layers 23 that emit visible light for image display during address discharge.

FIG. 1B is a view showing the electrode structure of the upper substrate 10 of the conventional three-electrode AC surface discharge type plasma display panel. As shown, the sustain electrode 30X and the scan electrode 30Y corresponding to one subpixel are formed in the discharge space, and the transparent electrode 16a provided in the electrodes is formed on the bus electrode 16b.

However, since the size of the R, G, and B subpixels of the conventional electrode structure shown in FIG. 1B is constant, when the bus electrode is formed via each of the R, G, and B subpixels, the G and B subpixels have a strong discharge. Does not happen. Thus, the G and B subpixel luminance and color temperature are lowered.

In order to solve the above-mentioned problems, the present invention provides a structure of a plasma display panel which can improve luminance and color temperature by forming one or more bent partition walls and changing one or more subpixels among R, G, and B subpixels. It is to provide.

In order to achieve the above object, the present invention is a front glass substrate having a transparent electrode and a bus electrode, a rear glass substrate having an address electrode formed in a direction crossing the transparent electrode and the bus electrode, disposed between the front glass substrate and the rear glass substrate R In the plasma display panel including partitions for partitioning the (red), G (green), and B (blue) subpixels, the partitions partitioning the subpixels include a first partition, a second partition, and a first width of the partition. And a third partition and a fourth partition, wherein at least one of the partitions is bent to form a size of at least one of the R (red), G (green), and B (blue) subpixels. It is characterized by another.

In addition, the size of the G (green) and B (blue) subpixel is larger than the size of the R (red) subpixel.

In addition, the size of the G (green) and B (blue) subpixel is characterized in that the same.

In addition, the first and fourth barrier ribs are straight, and the second and third barrier ribs are bent in the direction of the R (red) subpixel.

In addition, the size of the transparent electrode formed on the G (green) and B (blue) subpixel is larger than the size of the transparent electrode formed on the R (red) subpixel.

In addition, the sizes of the transparent electrodes formed on the G (green) and B (blue) subpixels are the same.

In addition, the size of the B (blue) subpixel of the R (red), G (green), B (blue) subpixel is the largest.

Also, the first partition is bent in the direction of the G (green) subpixel, the second and third partitions are bent in the direction of the R (red) subpixel, and the fourth partition is the direction of the G (green) subpixel. It is characterized by being bent.

In addition, the size of the transparent electrode formed on the B (blue) sub-pixel is the largest.

In addition, the address electrodes formed at the center of the G (green) subpixel may be arranged in the same direction as that of the third and fourth barrier ribs.

In addition, the first partition is bent in the direction of the B (blue) subpixel, the second and third partitions are bent in the direction of the R (red) subpixel, and the fourth partition is the direction of the B (blue) subpixel. It is characterized by being bent.

In addition, the size of the transparent electrode formed on the G (green) sub-pixel is the largest.

The address electrodes formed at the center of the B (blue) subpixel are arranged in the same direction as the direction of the first partition wall and the direction of the second partition wall.

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

FIG. 2A illustrates a partition structure of an AC surface discharge plasma display panel according to a first embodiment of the present invention. As shown in FIG. 2A, the scan bus electrode 210a and the sustain bus electrode 210b are connected to the transparent electrodes 230a, 230b, and 230c on the front glass substrate.

In addition, barrier ribs 270 may be formed on the rear glass substrate to partition the R, G, and B subpixels 250a, 250b, and 250c, and the address electrodes 220a, 220b, and 220c for address discharge may be used to scan the bus electrodes 210a. And intersect with the sustain bus electrode 210b.

At this time, the R, G, and B subpixels 250a, 250b, and 250c form pixels 250 having the same size. The G and B subpixels 250b and 250c have the same size and the G and B subpixels 250b. , 250c is formed larger than the size of the R subpixel 250a.

In addition, the partition wall 270 includes a first partition 270a and a second partition 270b, a third partition 270c, and a fourth partition 270d having a constant upper width of the partition 270.

The upper width of the partition wall 270 referred to herein refers to the width of the partition wall 270 that appears when the front glass substrate is viewed toward the rear glass substrate.
In this case, the first partition 270a and the fourth partition 270d are straight, and the second partition 270b and the third partition 270c are formed to be bent in the direction of the R subpixel 250a.

Meanwhile, the sizes of the transparent electrodes 230b and 230c formed in the G and B subpixels 250b and 250c are the same, and the sizes of the transparent electrodes 230b and 230c formed in the G and B subpixels 250b and 250c are R. It is formed larger than the size of the transparent electrode 230a formed in the subpixel 250a.

As described above, the barrier rib structure of the present invention has the luminance of the G and B subpixels as compared to the R subpixels by forming the first and fourth barrier ribs in a straight line and forming the second and third barrier ribs in the direction of the R subpixel. And color temperature can be improved.

2B is a view showing a second embodiment according to the present invention. As shown in FIG. 2B, the scan bus electrode 210a and the sustain bus electrode 210b are connected to the transparent electrodes 230a, 230b, and 230c on the front glass substrate.

In addition, barrier ribs 270 may be formed on the rear glass substrate to partition the R, G, and B subpixels 250a, 250b, and 250c, and the address electrodes 220a, 220b, and 220c for address discharge may be used to scan the bus electrodes 210a. And intersect with the sustain bus electrode 210b.

In this case, the R, G, and B subpixels 250a, 250b, and 250c form pixels 250 having the same size. The R, G, and B subpixels 250a, 250b, and 250c have different sizes, and the B subpixels are different. The size of 250c is formed largest.

In addition, the partition wall 270 includes a first partition 270a and a second partition 270b, a third partition 270c, and a fourth partition 270d having a constant upper width of the partition 270.

In this case, the first partition 270a is formed to be bent in the direction of the G subpixel 250b, and the second partition 270b and the third partition 270c are formed to be bent in the direction of the R sub pixel 250a. The fourth partition 270d is formed to be bent in the direction of the G subpixel 250b.

Meanwhile, the sizes of the transparent electrodes 230a, 230b, and 230c formed in the R, G, and B subpixels 250a, 250b, and 250c are different from each other, and the size of the transparent electrodes 230c formed in the B subpixel 250c is the largest. It is largely formed.

In addition, the address electrodes 220b formed at the center of the G subpixel 250b are arranged in the same direction as the direction of the third partition 270c and the direction of the fourth partition 270d to cause address discharge.

As described above, the barrier rib structure of the present invention forms the first partition to be bent in the direction of the G subpixel, the second partition and the third partition to be bent in the direction of the R subpixel, and the fourth partition is formed in the direction of the G subpixel. By forming it to be bent, the luminance and color temperature of the B subpixel can be improved as compared with the R and G subpixels.

Figure 2c is a diagram showing a third embodiment according to the present invention. As shown in FIG. 2C, the scan bus electrode 210a and the sustain bus electrode 210b are connected to the transparent electrodes 230a, 230b, and 230c on the front glass substrate.

In addition, barrier ribs 270 are formed on the rear substrate to partition the R, G, and B subpixels 250a, 250b, and 250c, and the address electrodes 220a, 220b, and 220c for address discharge are scanned bus electrodes 210a. And intersect with the sustain bus electrode 210b.

In this case, the R, G, and B subpixels 250a, 250b, and 250c form pixels 250 having the same size. The R, G, and B subpixels 250a, 250b, and 250c have different sizes, and the G subpixels are different. The size of 250b is formed largest.

In addition, the partition wall 270 includes a first partition 270a and a second partition 270b, a third partition 270c, and a fourth partition 270d having a constant upper width of the partition 270.

In this case, the first partition 270a is formed to be bent in the direction of the B subpixel 250c, and the second partition wall 270b and the third partition 270c are formed to be bent in the direction of the R sub pixel 250a. The fourth partition 270d is formed to be bent in the direction of the B subpixel 250c.

Meanwhile, the sizes of the transparent electrodes 230a, 230b, and 230c formed in the R, G, and B subpixels 250a, 250b, and 250c are different from each other, and the size of the transparent electrodes 230b formed in the G subpixel 250b is the largest. It is largely formed.

In addition, the address electrodes 220c formed at the center of the B subpixel 250c are arranged in the same direction as the direction of the first partition 270a and the direction of the second partition 270b to cause address discharge.

As described above, the barrier rib structure of the present invention forms the first partition to bend in the direction of the B subpixel, the second partition and the third partition to be bent in the direction of the R subpixel, and the fourth partition to the B subpixel. By forming bent in the direction, the luminance and color temperature of the G subpixel can be improved as compared with the R and B subpixels.

As described above, it will be understood by those skilled in the art that the technical configuration of the present invention may be implemented in other specific forms without changing the technical spirit or essential features of the present invention. Therefore, the embodiments described in the directors are to be understood in all respects as illustrative and not restrictive, and the scope of the present invention is indicated by the claims which follow 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, the present invention has the effect of improving luminance and color temperature by forming one or more bent partition walls and changing the sizes of one or more subpixels among R, G, and B subpixels.

Claims (13)

A front glass substrate having a transparent electrode and a bus electrode formed thereon, a rear glass substrate having an address electrode formed in a direction intersecting the transparent electrode and the bus electrode, and disposed between the front glass substrate and the rear glass substrate and having R (red) and G (green In the plasma display panel including a partition wall partitioning the B (blue) sub-pixel, The partition wall defining the subpixel includes a first partition wall, a second partition wall, a third partition wall, and a fourth partition wall having a constant upper width of the partition wall. At least one of the barrier ribs is formed to be bent such that a size of at least one of the R (red), G (green), and B (blue) subpixels is different from that of the remaining subpixels. The method of claim 1, And the size of the G (green) and B (blue) subpixels is larger than that of the R (red) subpixel. The method of claim 2, And the G (green) and B (blue) subpixels have the same size. The method of claim 1, And the first and fourth partition walls are straight and the second and third partition walls are curved in the direction of the R (red) subpixel. The method of claim 1, And the size of the transparent electrodes formed on the G (green) and B (blue) subpixels is larger than the size of the transparent electrodes formed on the R (red) subpixels. The method of claim 5, And a size of the transparent electrodes formed on the G (green) and B (blue) subpixels. The method of claim 1, And the B (blue) subpixel has the largest size among the R (red), G (green), and B (blue) subpixels. The method of claim 1, The first partition is bent in the direction of the G (green) subpixel, the second partition and the third partition are bent in the direction of the R (red) subpixel, and the fourth partition is the G (green). Plasma display panel, characterized in that the curved in the direction of the sub-pixel The method of claim 5, And the largest size of the transparent electrode formed on the B (blue) subpixel. The method of claim 8, And an address electrode formed at the center of the G (green) subpixel is arranged in the same direction as the direction of the third partition and the direction of the fourth partition. The method of claim 1, The first partition is bent in the direction of the B (blue) subpixel, the second partition and the third partition are bent in the direction of the R (red) subpixel, and the fourth partition is the B (blue). Plasma display panel, characterized in that the curved in the direction of the sub-pixel The method of claim 5, And the largest size of the transparent electrode formed on the G (green) subpixel. The method of claim 11, And the address electrodes formed at the center of the B (blue) subpixel are arranged in the same direction as the direction of the first partition and the direction of the second partition.

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