KR100692035B1 - Plasma Display Panel - Google Patents

Abstract

The present invention relates to a partition structure of a plasma display panel.

The plasma display panel according to the present invention has a plurality of address electrodes arranged on the rear glass in a direction crossing the front substrate and the plurality of sustain electrode pairs, in which a plurality of sustain electrode pairs are formed by pairing a scan electrode and a sustain electrode on the front glass. In the plasma display panel in which the rear substrates are arranged at regular intervals, the rear substrate includes a lattice-shaped partition wall consisting of horizontal and vertical partition walls to partition discharge cells, and an upper region, a lower region, a left region, and a rear substrate. The transverse bulkhead is opened in at least one or more regions of the right region.

Therefore, according to the present invention, the partition wall of the plasma display panel is formed into a lattice-shaped partition wall structure, and the partition wall structure of a certain area of the effective display area including the periphery of the exhaust port is formed by forming an open partition wall structure such as a fishbone partition structure or a stripe partition structure. There is an effect of improving the luminance uniformity by improving the exhaust characteristics of the plasma display panel.

Description

Plasma Display Panel

1 is a view showing the structure of a conventional plasma display panel.

2A and 2B illustrate stripe-type barrier rib structures of a conventional plasma display panel.

3A and 3B illustrate a lattice structure of a conventional plasma display panel.

4A and 4B illustrate a partition structure of a plasma display panel according to the present invention.

5 is a view illustrating a forming range in a panel of a fishbone type barrier rib structure or a stripe type barrier rib structure in a multi barrier rib structure of a plasma display panel according to an exemplary embodiment of the present invention;

6 is a view illustrating a forming range in a panel of a fishbone type barrier rib structure or a stripe type barrier rib structure in a multi barrier rib structure of a plasma display panel according to another exemplary embodiment of the present invention;

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

In general, a plasma display panel is a partition wall formed between a front substrate and a rear substrate to form a unit cell, and each cell includes neon (Ne), helium (He), or a mixture of neon and helium (Ne + He). An inert gas containing a main discharge gas such as and a small amount of xenon is filled. When discharged by a high frequency voltage, the inert gas generates vacuum ultraviolet rays and emits phosphors formed between the partition walls to realize an image. Such a plasma display panel has a spotlight as a next generation display device because of its thin and light configuration.

1 illustrates a structure of a general plasma display panel.

As shown in FIG. 1, a plasma display panel includes a front substrate on which a plurality of sustain electrode pairs formed by pairing a scan electrode 102 and a sustain electrode 103 on a front glass 101 that is a display surface on which an image is displayed. The rear substrate 110 having the plurality of address electrodes 113 arranged to intersect the plurality of sustain electrode pairs on the back glass 111 forming the back surface 100 and the rear surface is coupled in parallel with a predetermined distance therebetween. .

The front substrate 100 is made of a scan electrode 102 and a sustain electrode 103, that is, a transparent electrode (a) formed of a transparent ITO material and a metal material to mutually discharge and maintain light emission of the cells in one discharge cell. The scan electrode 102 and the sustain electrode 103 provided as the bus electrode b are included in pairs. The scan electrode 102 and the sustain electrode 103 are covered by a dielectric layer 104 which limits the discharge current and insulates the electrode pairs, and the upper surface of the upper dielectric layer 104 is made of magnesium oxide to facilitate discharge conditions. A protective layer 105 on which MgO) is deposited is formed.

The rear substrate 110 is arranged such that a plurality of discharge spaces, that is, stripe-type partitions 112 for forming discharge cells are maintained in parallel. In addition, a plurality of address electrodes 113 which perform address discharge to generate vacuum ultraviolet rays are arranged in parallel with the partition wall 112. On the upper side of the rear substrate 110, R, G, and B phosphors 114 which emit visible light for image display during address discharge are coated. A lower dielectric layer 115 is formed between the address electrode 113 and the phosphor 114 to protect the address electrode 113.

In such a plasma display panel, the partition structure formed on the rear substrate is variously designed in consideration of brightness characteristics, exhaust characteristics, phosphor coating area, and the like.

Such a partition structure is typically divided into a stripe-type partition structure and a lattice-type partition wall structure.

2A and 2B illustrate stripe-type barrier rib structures of a conventional plasma display panel.

As shown, in the stripe-type partition wall structure, the partition wall 210 is arranged in a stripe shape while being perpendicular to the sustain electrode formed of the bus electrode 220 and the transparent electrode 230.

Although the manufacturing process of the stripe-type barrier rib structure is simple, there is a problem that visible light generated during discharge leaks in the stripe direction of the barrier rib, and phosphor printing and exhausting are easy, but mis-discharge and phosphor coating area affecting neighboring cells are difficult. There is a problem of becoming smaller.

Due to these problems, the trend of adopting a lattice structure in which horizontal bulkheads separating R, G and B in the vertical direction of the screen, as well as distinguishing each R, G and B cells is arranged in recent years. to be.

The lattice-shaped partition wall structure will be described with reference to FIGS. 3A and 3B below.

3A and 3B illustrate a lattice structure of a conventional plasma display panel.

As shown, the partition wall 310 of the lattice-shaped partition wall structure is horizontally or perpendicular to the sustain electrode formed of the bus electrode 320 and the transparent electrode 330 and arranged in a grid shape.

Unlike the stripe-type barrier rib structure, the grid-shaped barrier rib structure can designate each color cell, thereby improving luminance, blocking leakage light, and preventing crosstalk in all directions.

However, the lattice-type bulkhead structure has a problem in that the exhaust characteristics are deteriorated in the process of performing exhaust after bonding the front substrate and the rear substrate. This causes defects caused by foreign matters around the exhaust pipe for exhausting impurities and gas injection. Due to such a defect, there is a problem in that luminance uniformity of the plasma display panel is deteriorated.

Accordingly, an object of the present invention is to provide a plasma display panel which can improve luminance uniformity by improving a lattice-shaped partition wall structure.

A plasma display panel according to the present invention for achieving the above object is a plurality of sustain electrode pairs formed in a pair of scan electrodes and sustain electrodes on the front glass in a direction intersecting a plurality of sustain electrode pairs and a front substrate is arranged In a plasma display panel in which a rear substrate in which address electrodes are arranged on a rear glass is bonded at regular intervals, the rear substrate includes a lattice-shaped partition wall formed of a horizontal partition and a vertical partition to partition discharge cells, and an upper region of the rear substrate. And at least one horizontal barrier rib formed in at least one of the lower region, the left region, and the right region.
In another plasma display panel according to the present invention, a front substrate having a plurality of sustain electrode pairs formed by pairing a scan electrode and a sustain electrode on a front glass and a plurality of address electrodes in a direction crossing the plurality of sustain electrode pairs are rear glass. In the plasma display panel in which the rear substrates arranged on the substrate are bonded to each other at regular intervals, the rear substrate includes upper and lower regions, a lower region, a left region, and a lattice-shaped partition wall formed of a horizontal partition wall and a vertical partition wall to partition discharge cells. The vertical partition wall is formed only in at least one region of the right region.

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The upper and lower regions have a vertical length ranging from 10% to 20% of the vertical length from the outermost partition or outermost effective display area of the rear substrate to the opposite outermost partition or outermost effective display area. It is characterized in that it comprises an area.

The left and right areas are horizontal lengths of 10% or more and 20% or less of the horizontal length from the outermost partition or outermost effective display area of the rear substrate to the opposite outermost partition or outermost effective display area. Characterized in that the area containing.

At least one of the upper region, the lower region, the left region and the right region may include a periphery of a hole.

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

4A and 4B illustrate a partition structure of a plasma display panel according to the present invention.

Before referring to FIGS. 4A and 4B, the plasma display panel according to the present invention includes a plurality of sustain electrodes paired with scan electrodes and sustain electrodes in a direction intersecting with a plurality of sustain electrode pairs. The rear substrate on which the address electrodes are arranged is bonded at regular intervals.

As shown in FIG. 4A, the barrier rib structure of the plasma display panel according to the present invention forms a grid barrier rib structure 410 and a fish bone type barrier rib structure 420. Thus, the structure which takes two or more partition structures is called multi partition structure. The reason for forming such a multi-barrier structure is to compensate for the bad exhaust characteristics of the grid-shaped partition wall structure 410.

Such a multi-barrier structure may form the fishbone-type barrier rib structure 420 as described above in the grid-shaped barrier rib structure 410, but may also form the stripe-type barrier rib structure 430 as illustrated in FIG. 4B. At this time, the fishbone partition wall structure 420 has a similar shape of fish bone as shown, and the fishbone partition wall structure 420 having such a shape has a partition structure having a horizontal protrusion in the stripe partition wall structure 410. Say.

The reason for forming such a multi-barrier structure is to improve the exhaust characteristics of the plasma display panel due to the poor exhaust characteristics of the lattice-shaped barrier rib structure 410 as described above. That is, the overall barrier rib structure forms a grid-shaped barrier rib structure 410 and forms a fishbone barrier rib structure 420 or a stripe barrier rib structure 430 at an outer portion of the display area. In particular, it is preferable to form a fishbone barrier rib structure 420 or a stripe barrier rib structure 430 around an exhaust port where foreign substances or the like are adsorbed during impurity exhaust and gas injection to cause erroneous discharge or abnormal discharge.

FIG. 5 is a view illustrating a forming range in a panel of a fishbone barrier rib structure 420 or a stripe barrier rib structure 430 in the multi barrier rib structure of the plasma display panel according to an exemplary embodiment of the present invention.

According to an embodiment of the present invention, a predetermined region in the upper or lower portion of the plasma display panel in the horizontal direction (longitudinal direction) is formed of the fishbone partition wall structure 420 which is an open partition wall structure, and the remaining part is a closed partition wall structure. The grid-shaped partition wall structure 410 is formed. At this time, the formation range of the fishbone barrier rib structure 420 formed in a predetermined area of the upper or lower portion of the panel is the outermost partition wall opposite the panel from the outermost partition wall of the panel or the outermost effective display area of the panel. The range is 10% or more and 20% or less (hereinafter, referred to as an 'open bulkhead area') with respect to the vertical length from the opposite outermost effective display area. Here, not only the fishbone type barrier rib structure 420 in which a portion of the horizontal barrier rib is opened in the open barrier rib region, but also the stripe barrier rib structure 430 in which the horizontal barrier rib itself does not exist is of course possible.

Meanwhile, according to the exemplary embodiment of the present invention, the open barrier rib structure formed in the open barrier rib area may be formed in a shape different from that shown in FIG. 5. That is, as shown in FIG. 5, some or all of the horizontal bulkheads may be removed instead of some or all of the horizontal bulkheads existing in the open partition area. For example, some or all of the transverse bulkheads may be removed for one or more of the left, right or central regions of the open bulkhead region.

FIG. 6 is a view illustrating a forming range in a panel of a fishbone type barrier rib structure 420 or a stripe type barrier rib structure 430 in the multi barrier rib structure of the plasma display panel according to another exemplary embodiment of the present invention.

As shown in FIG. 6, a predetermined region on the left or right side of the plasma display panel according to another exemplary embodiment of the present invention is formed of a fishbone barrier rib structure 420, which is an open barrier rib structure, and the remaining portion thereof is closed. It is formed of a lattice-shaped partition wall structure 410 which is a partition wall structure. At this time, the formation range of the fishbone barrier rib structure 420 formed in a predetermined area on the left or right side of the panel is the outermost edge opposite the panel from the outermost partition of the panel or the outermost effective display area of the panel. It is the range of 10% or more and 20% or less with respect to the horizontal length to a partition or the opposite outermost effective display area (henceforth an "open partition area"). Here, as described with reference to FIG. 5, in addition to the fishbone type barrier rib structure 420 in which a part of the horizontal barrier ribs is opened, the streaked barrier rib structure 430 in which the horizontal barrier rib itself does not exist is also possible in the open barrier rib area.

On the other hand, the open barrier rib structure formed in the open barrier rib area according to another embodiment of the present invention does not remove all or part of all the horizontal barrier ribs existing in the open barrier rib area as described in FIG. Some or all of the bulkheads may be removed. For example, some or all of the transverse bulkheads may be removed for one or more of the upper, lower or central regions of the open bulkhead region.

Meanwhile, according to the technical idea of the present invention, a panel having a partition structure combining the partition structure shown in FIG. 5 and the partition structure shown in FIG. 6 is also possible. That is, according to an exemplary embodiment of the present invention, an open barrier region in which part or all of the horizontal barrier ribs are removed may be formed on all of the upper, lower, left and right sides of the panel.

 The plasma display panel according to the present invention forms an open partition structure such as a fishbone partition wall structure 420 or a stripe partition wall structure 430, unlike a peripheral area of an effective display area including an exhaust port peripheral part, unlike other peripheral parts. As a result, it is possible to improve the luminance uniformity by improving the bad exhaust characteristic, which is a disadvantage of the grid-shaped partition wall structure 410.

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 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.

According to the present invention described above, the partition wall of the plasma display panel is formed in a lattice-shaped partition wall structure, and the partition wall structure of a certain area of the outer portion of the effective display area including the periphery of the exhaust port is an open partition wall structure such as a fishbone partition wall structure or a striped partition wall structure. By forming the A and D, the exhaust characteristics of the plasma display panel may be improved, thereby improving luminance uniformity.

Claims (6)

The front substrate on which the plurality of sustain electrode pairs formed by pairing the scan electrodes and the sustain electrodes on the front glass is arranged, and the rear substrate on which the plurality of address electrodes are arranged on the rear glass in a direction intersecting the plurality of sustain electrode pairs has a constant distance. In the plasma display panel to be bonded together The rear substrate is A lattice-shaped partition wall consisting of a horizontal partition wall and a vertical partition wall to partition discharge cells; And And the horizontal barrier rib is opened in at least one of an upper region, a lower region, a left region, and a right region of the rear substrate. The front substrate on which the plurality of sustain electrode pairs formed by pairing the scan electrodes and the sustain electrodes on the front glass is arranged, and the rear substrate on which the plurality of address electrodes are arranged on the rear glass in a direction intersecting the plurality of sustain electrode pairs has a constant distance. In the plasma display panel to be bonded together The rear substrate is A lattice-shaped partition wall consisting of a horizontal partition wall and a vertical partition wall to partition discharge cells; And And only the vertical barrier ribs are formed in at least one or more of an upper region, a lower region, a left region, and a right region of the rear substrate. The method according to claim 1 or 2, The upper region and the lower region correspond to a range of 10% or more and 20% or less with respect to the vertical length from the outermost partition or outermost effective display area of the rear substrate to the opposite outermost partition or outermost effective display area. And a region including a vertical length. The method according to claim 1 or 2, The left region and the right region correspond to a range of 10% or more and 20% or less with respect to a horizontal length from the outermost partition or outermost effective display area of the rear substrate to the opposite outermost partition or outermost effective display area. And a region including a horizontal length. delete The method according to claim 1 or 2, And at least one of the upper region, the lower region, the left region, and the right region includes a periphery of a tip hole.

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