KR19990054287A - Plasma display panel - Google Patents

Abstract

The present invention relates to a plasma display panel, wherein the plasma display panel includes: a first glass substrate having first stripe-shaped electrodes formed at equal intervals; A second glass substrate disposed on the first glass substrate and having stripe-shaped second electrodes formed on the upper portion at equal intervals; And barrier ribs interposed between the first glass substrate and the second glass substrate to limit independent discharge cells and to prevent crosstalk between adjacent discharge cells, wherein the first glass substrate and the second glass substrate are interposed between the first glass substrate and the second glass substrate. Is a plasma display panel in which the electrodes are disposed so that the electrodes are orthogonal to each other and the discharge surfaces are filled in the discharge cells defined by the barrier ribs. A plurality of first partition walls arranged in parallel with the first electrodes of the glass substrate and two second partition walls arranged along both edges of the first glass substrate in parallel with the second electrode of the second glass substrate. The first and second barrier ribs may be connected to each other to have an integrated structure.

Description

Plasma display panel

The present invention relates to a plasma display panel, and more particularly, to a plasma display panel in which a barrier rib made of a metal alloy is interposed between a rear surface and a front substrate.

Plasma Display Panel (PDP) is one of the flat panel display devices, and its overall thickness can be made less than 1 cm, which can significantly reduce its thickness and weight compared to CRT displays using electron guns. It has advantages

1 is a diagram illustrating a PDP according to the prior art, and as shown, the PDP has a structure in which a pair of glass substrates, that is, rear and front substrates 1 and 6, are sealed. Is filled with a discharge gas 10 such as argon (Ar), neon (Ne), or xenon (Xe).

Here, the back and front substrates are manufactured through independent processes. On the back substrate 1, a plurality of address electrodes 2 for transmitting data and a first dielectric layer 3 covering them are formed, and address electrodes Barrier ribs 4 are formed on the first dielectric layer 3 between the two to define independent discharge spaces and to suppress crosstalk between adjacent cells. On the side of the and the first dielectric layer 3, a phosphor 5 for realizing colorization is applied.

Meanwhile, a plurality of discharge sustaining electrodes 7 are formed on the front substrate 6 to generate a discharge, and the discharge sustaining electrodes 7 are protected on the front substrate 6 including the discharge sustaining electrodes 7. A second dielectric film 8 and a protective layer 9 such as an MgO film are laminated.

However, such a conventional PDP defines an independent unit cell and forms a partition wall for preventing crosstalk between adjacent cells through a normal printing process. In this case, 10 repeated printing processes are performed. It was difficult to control the width of the bulkhead because it should be formed as.

In addition, there is a problem that the manufacturing yield is lowered by not accurately positioning the front substrate on the partition wall formed on the rear substrate at the time of sealing the back and front substrate.

Accordingly, an object of the present invention is to independently fabricate barrier ribs made of metal alloys using a lithography process instead of forming barrier ribs on the back substrate through a printing process, and then between them during sealing of the back and front substrates. By interposing, the PDP which can control a partition width is provided.

It is also an object of the present invention to provide a PDP which can facilitate alignment of the back substrate and the front substrate by displaying at least two alignment marks on the corner portion of the partition wall made of a metal alloy.

1 is a cross-sectional view for explaining a conventional plasma display panel.

2 is a plan view showing a partition wall of the plasma display panel according to the embodiment of the present invention;

3 is an exploded perspective view showing a plasma display panel according to an embodiment of the present invention.

(Explanation of symbols for the main parts of the drawing)

1: back substrate 2: address electrode

3: first dielectric layer 6: front substrate

7: discharge sustain electrode 8: second dielectric layer

9: protective layer 11: first partition

12: second partition wall 13: projection

14: alignment mark 20: bulkhead

The above object comprises: a first glass substrate having stripe-shaped first electrodes formed thereon at equal intervals; A second glass substrate disposed on the first glass substrate and having stripe-shaped second electrodes formed on the upper portion at equal intervals; And barrier ribs interposed between the first glass substrate and the second glass substrate to limit independent discharge cells and to prevent crosstalk between adjacent discharge cells, wherein the first glass substrate and the second glass substrate are interposed between the first glass substrate and the second glass substrate. Is a plasma display panel in which the electrodes are disposed so that the electrodes are orthogonal to each other and the discharge surfaces are filled in the discharge cells defined by the barrier ribs. A plurality of first barrier ribs arranged in parallel with the first electrodes of the glass substrate and two second barrier ribs arranged along both edges of the first glass substrate in parallel with the second electrode of the second glass substrate. According to the PDP according to the present invention, the first and second partitions have an integrated structure in which points meeting each other are connected to each other. Is achieved.

According to the present invention, by forming a barrier rib integrated with a metal alloy and interposing them between the substrates when the barrier ribs are formed, the barrier rib width can be controlled.

Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings.

2 is a view showing a partition wall of a PDP according to the present invention, the partition wall 20 is a metal alloy similar in thermal expansion with a glass substrate, for example, a metal alloy of nickel, chromium and iron using a conventional lithography process. To produce. The manufactured partition wall has a structure in which a plurality of first partition walls 11 arranged at equal intervals and two second partition walls 12 connecting both ends of the first partition walls 11 are integrated. to be. In addition, the partition wall 20 has at least two or more protrusions 13 protruding outwardly from portions where the two sides and the second partitions 12 meet each other in the first partitions 11. The upper and lower surfaces of (13) are provided with alignment marks 14 for aligning the rear substrate and the front substrate at the time of manufacturing the PDP.

3 is an exploded perspective view of a PDP according to the present invention, in which the same parts as in FIGS. 1 and 2 are denoted by the same reference numerals.

A plurality of address electrodes 2 for transmitting data are formed on the rear substrate 1 at equal intervals, and the first dielectric layer 3 is formed on the front surface of the rear substrate 1 so as to cover the address electrodes 2. ) Is applied. In addition, a plurality of discharge sustaining electrodes 7 are formed on the front substrate 6 to generate a discharge, and a second dielectric layer 8 is covered on the front substrate 6 including the discharge sustaining electrodes 7. A protective layer 9 such as MgO is formed thereon.

The back and front substrates 1 and 6 are sealed such that the substrate surfaces on which the electrodes 2 and 7 are formed face each other and the electrodes 2 and 7 are orthogonal to each other. Each corner portion of 6) is provided with at least two alignment marks (not shown) for their exact sealing, and these alignment marks are matched to seal the substrates.

Subsequently, partition walls 20 according to the present invention are provided between the rear and front substrates 1 and 6 to define independent discharge spaces and to prevent crosstalk between adjacent cells. The first partition wall 11 is disposed to be parallel to the address electrode 2 between the address electrodes 2 formed on the rear substrate 1.

In addition, at least two or more protrusions 13 protruding outward from a portion where the first and second partition walls 11 and 12 meet at the time of sealing the back substrate 1, the partition wall 20, and the front substrate 6. The alignment marks 14 provided on the upper and lower surfaces of the upper and lower surfaces, respectively, and the alignment marks provided at the corners of the rear and front substrates 1 and 6, so that the rear substrate 1 and the partition wall 20 and Seal the front substrate 6 accurately.

On the other hand, although not shown, after sealing the back and front substrates through the partition walls, the discharge gas is injected into the discharge cells defined by the partition walls to manufacture and complete the PDP.

As described above, the PDP according to the present invention can control the width of the partition wall by fabricating a partition wall made of a metal alloy using a lithography process, and further includes at least two projections at the corners of the partition wall, On the upper and lower surfaces, alignment marks for accurate alignment of the substrates and the partition walls are displayed, thereby facilitating alignment between them.

Meanwhile, although specific embodiments of the present invention have been described and illustrated, modifications and variations can be made by those skilled in the art. Accordingly, the following claims are to be understood as including all modifications and variations as long as they fall within the true spirit and scope of the present invention.

Claims (4)

A first glass substrate on which stripe-shaped first electrodes are formed at equal intervals; A second glass substrate disposed on the first glass substrate and having stripe-shaped second electrodes formed on the upper portion at equal intervals; And barrier ribs interposed between the first glass substrate and the second glass substrate to limit independent discharge cells and to prevent crosstalk between adjacent discharge cells, wherein the first glass substrate and the second glass substrate are interposed between the first glass substrate and the second glass substrate. Is a plasma display panel in which the electrodes are formed so as to face each other at the same time as the arrangement surface of the electrodes formed on each other, and the discharge gas is filled in the discharge cells defined by the partition walls, The barrier ribs may include a plurality of first barrier ribs arranged in parallel with the first electrodes of the first glass substrate, and two barrier ribs arranged along both edges of the first glass substrate in parallel with the second electrode of the second glass substrate. And two second barrier ribs, wherein the first barrier rib and the second barrier rib are connected to each other and have an integrated structure. The plasma display panel of claim 1, wherein the barrier rib is made of a metal alloy of nickel, chromium, and iron. The barrier rib of claim 1, wherein the barrier rib has at least two protrusions protruding outward from a portion where two sides of the first barrier rib and the second barrier rib meet each other. Plasma display panel, characterized in that the alignment mark is provided for alignment with the first and second glass substrate. An alignment mark provided at at least two corner portions, and the first glass substrate having first stripe-shaped electrodes formed at equal intervals; A second glass substrate disposed on an upper portion of the first glass substrate, having an alignment mark at a portion of at least two corners, and having second electrodes in a stripe shape at equal intervals; First electrodes interposed between the first glass substrate and the second glass substrate to define independent discharge cells and prevent crosstalk between adjacent discharge cells, and are formed at equal intervals on the first glass substrate. A plurality of first partition walls each disposed in parallel with each other therebetween, and two second partition walls formed along both edges of the first glass substrate in parallel with the second electrodes to connect both ends of the first partition walls. This integrated structure has at least two protrusions protruding outwardly from the first and second portions of the first and second partitions, respectively, and the first and the bottom surfaces of the first and second partitions. A partition wall having an alignment mark for alignment with a second glass substrate; And A discharge gas filled in a discharge cell defined by the barrier ribs, wherein the first glass substrate and the second glass substrate are sealed such that the electrodes are orthogonal at the same time as the arrangement surfaces of the electrodes formed on each of them face each other. Plasma display panel, characterized in that the alignment marks provided on each of the first glass substrate, the partition wall and the second glass substrate is sealed to match.