KR101022326B1 - Transparent plasma display panel using glass barrier rib and method of manufacturing the same - Google Patents

Abstract

The present invention relates to a transparent plasma display panel using a glass partition wall and a method for manufacturing the same, comprising a transparent electrode layer and a transparent dielectric layer on each of the first and second transparent substrates, and adding a protective layer to the first transparent substrate, By additionally providing a glass partition and a phosphor made of a glass material on the second transparent substrate, it is possible to have a high transmittance by the glass partition to provide a more vivid bidirectional image information implementation.

PDP, bulkhead, glass, transparent, phosphor, electrode, transparency

Description

Transparent plasma display panel using glass barrier rib and method of manufacturing the same

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a plasma display (or plasma display panel, also referred to as " PDP ") which is one of flat panel display devices, and more particularly, to a transparent plasma display panel before and after.

A plasma display is an apparatus which displays an image using the visible light which arises from a fluorescent substance when the ultraviolet-ray generate | occur | produces a fluorescent substance by gas discharge.

The PDP uses a plurality of glass substrates and barrier ribs to create a plurality of cells (fine fluorescent discharge tubes) and expresses an image by a combination of plasma discharges generated in the cells. The discharge gas is used to generate a plasma discharge.

In the case of the DC type PDP, the cathode and the anode are exposed to the discharge space, whereas in the case of the AC type, each electrode is covered with a dielectric layer and an MgO layer. In either manner, the ultraviolet rays generated by the discharge between the electrodes excite the phosphor coated on the inner surface of the discharge cell, and visible light is emitted from the phosphor by the principle of photoluminescence. At this time, color display is performed by applying red, green, and blue phosphors to each display cell in the same manner as in CRT.

1 is a structural diagram of a typical AC plasma display panel. As shown in FIG. 1, an electrode layer, a dielectric layer 15, and a protective layer 17, which are formed of a transparent electrode 12 and a bus electrode 13, are sequentially stacked on the glass substrate 11 on the front plate 10. .

The address plate 22, the rear dielectric layer 23, the partition wall 25, and the phosphor 27 are sequentially stacked on the glass substrate 21 on the back plate 20.

Since the AC type plasma display panel transmits light generated therein only to the front plate 10, the electrode layers 12 and 13, the dielectric layer 15, and the passivation layer 17 of the front plate 10 are all transparent. On the other hand, the electrode 22, the dielectric layer 23, the partition 25, the phosphor 27, and the like, which are formed of the back plate 20, are made of an opaque material.

Recently, research has been conducted on transparent plasma display panels that can implement image information in both directions for use in commercial advertisements.

The transparent plasma display panel is composed of all the components of the back plate 20 is made of a transparent material, the opaque rear dielectric can be easily replaced with a transparent front dielectric, the most important key technology for implementing a transparent plasma display panel It is composed of a transparent partition and a transparent phosphor.

Here, the use of materials such as oxides can form transparent barrier ribs. Thus, prior art studies have been conducted to fabricate barrier ribs using oxides. However, these barrier barrier formation techniques using oxides are not intended to form a transparent plasma display panel, but rather a general AC type. These studies have been conducted to improve the bulkhead characteristics of plasma display panels or to reduce manufacturing costs.

Therefore, there is a need for an efficient configuration of a transparent partition wall having a high transmittance on the back plate side in order to implement a transparent plasma display panel.

SUMMARY OF THE INVENTION The present invention has been made to solve the above-mentioned problems, and is easy to manufacture by forming a back plate using a partition wall made of a transparent channel material on a glass substrate, and has a high transmittance to allow glass to realize bidirectional image information. An object of the present invention is to provide a transparent plasma display panel using a partition and a method of manufacturing the same.

According to an aspect of the present invention, there is provided a transparent plasma display panel using a glass partition wall, including: first and second transparent substrates spaced apart at regular intervals and disposed to face each other; A transparent electrode layer formed on the first and second transparent substrates in a direction crossing each other; A transparent dielectric layer formed on each of the transparent electrode layers formed on the first and second transparent substrates; A protective layer formed on the transparent dielectric layer of any one of the first and second transparent substrates; A glass partition wall disposed between the first and second transparent substrates to form a unit discharge cell; It characterized in that it comprises a phosphor formed in the inner region of the glass partition on the transparent substrate side where the protective layer is not formed.

In this case, the glass partition wall is preferably composed of soda-lime glass (Soda-lime Glass).

In addition, the glass partition wall may be formed by etching a glass plate to form a plurality of partition walls.

A transparent plasma display panel using a glass partition wall according to the present invention for realizing the above object is a first transparent substrate; A transparent electrode layer, a transparent dielectric layer, and a transparent protective layer provided on one surface of the first transparent substrate in order; A second transparent substrate having integrally formed partition walls for forming discharge cells on a surface facing the transparent protective layer of the first transparent substrate; A transparent electrode layer and a transparent dielectric layer provided in order between partition walls of the second transparent substrate; And a phosphor formed on the transparent dielectric layer between partitions of the second transparent substrate.

In this case, the partition wall is preferably formed by etching the second transparent substrate.

Plasma display panel using a glass partition wall according to the present invention for realizing the above object is a front substrate and a rear substrate disposed side by side; An address electrode, a dielectric layer, a partition, and a phosphor disposed in the rear substrate in order; The front substrate includes a bus electrode, a transparent electrode, a dielectric layer, and a protective layer, which are sequentially provided on a surface of the front substrate opposite to the rear substrate, and the partition wall is formed of a transparent glass partition wall.

According to an aspect of the present invention, there is provided a method of manufacturing a transparent plasma display panel using a glass partition wall, comprising: a first step of sequentially forming a transparent electrode, a bus electrode, a dielectric layer, and a protective layer on a first transparent substrate; A second step of sequentially forming a transparent address electrode and a transparent dielectric layer on the second transparent substrate; Fixing a glass partition wall made of a glass material on the second transparent substrate; A fourth step of applying the phosphor between the glass partitions of the second transparent substrate after the third step; A fifth step of matching the first transparent substrate manufactured in the first step with the second transparent substrate manufactured through the second to fourth steps; And a sixth step of performing a vacuum evacuation process and a gas injection process between the two transparent substrates matched after the fifth step.

The glass partition of the third step is preferably formed by etching the glass plate.

According to an aspect of the present invention, there is provided a method of manufacturing a transparent plasma display panel using a glass partition wall, comprising: a first step of sequentially forming a transparent electrode, a bus electrode, a dielectric layer, and a protective layer on a first transparent substrate; A second step of integrally forming a partition on the second transparent substrate; A third step of sequentially forming a transparent address electrode and a transparent dielectric layer between the partition walls fabricated in the second step; Applying a phosphor between the partition walls; A fifth step of matching the first transparent substrate manufactured through the first step with the second transparent substrate manufactured through the second to fourth steps; And a sixth step of performing a vacuum evacuation process and a gas injection process between the two substrates matched after the fifth step.

The transparent plasma display panel using the glass partition wall and the method for manufacturing the same according to the present invention can form a partition wall using a glass material between two transparent substrates, and thus have a high transmittance, thereby realizing bi-directional image information with clearer image quality. There is a repelling effect.

In addition, since the partition is formed by forming a glass plate or one transparent substrate by an etching process, the present invention also facilitates the manufacture of the partition, and also has the effect that the installation of the partition can be easily performed.

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

An embodiment of the present invention will be described with reference to FIGS. 2 to 6, and another embodiment of the present invention will be described with reference to FIGS. 7 to 8.

An embodiment of the present invention will be described.

2 is an exploded perspective view of a plasma display panel according to an embodiment of the present invention, Figure 3 is a perspective view showing a glass partition wall applied to an embodiment of the present invention.

4 and 5 are an entire photograph and an enlarged photograph of an actual glass partition wall manufactured according to an embodiment of the present invention.

In the transparent plasma display panel using the glass partition wall according to an embodiment of the present invention, referring to Figures 2 and 3, the first transparent substrate 51 and the second transparent substrate ( 61) is configured. The first transparent substrate 51 and the second transparent substrate 61 are preferably made of a glass substrate made of a material such as soda-lime glass.

The first transparent substrate 51 has a transparent electrode layer 54 formed of a bus electrode 53 and a transparent electrode 52 on a surface facing the second transparent substrate 61, and a transparent dielectric layer formed thereon ( 55, a protective layer 57 is formed on the transparent dielectric layer.

Since the configuration of the first transparent substrate set 50 is a well-known configuration, a detailed description of each layer is omitted.

The transparent electrode layer 62 and the transparent electrode layer constituting the address electrode are disposed on the second transparent substrate 61 in a direction opposite to the transparent electrode 52 on a surface opposite to the first transparent substrate 51. A transparent dielectric layer 63 formed thereon, a glass partition wall 65 made of a glass material to adhere to the transparent dielectric layer to form a discharge cell, and a phosphor 67 formed in an inner region of the glass partition wall.

In this way, all the major components of the second transparent substrate 61 are configured by applying a transparent material.

In particular, the glass partition wall 65 may be made of soda-lime glass, which is the same material as the first and second transparent substrates 51 and 61, soda-lime glass 200 to 300 Hmv It is known to have a hardness of 65 kg / mm 2 or more, an elongation of 5% or more, and a thermal expansion coefficient of 91 to 98 ° 10 −7 / ° C. in the range of 30 to 380 ° C.

The glass partition wall 65 may be manufactured by etching, and when the metal mask for forming the partition wall is covered on a thin glass plate to form the partition wall, and the glass partition wall is etched using an etchant such as hydrofluoric acid, the glass partition wall in which each cell is formed in a lattice structure is formed. 65 is produced. Of course, the metal mask is formed in a lattice shape to form each cell.

4 and 5 are views illustrating a state in which the glass partition wall 65 is manufactured by etching the thin glass plate as described above. 4 is a photograph showing the entire glass partition wall 65 of the actual unit cell lattice structure, reference numeral 65a indicates a partition wall formed in a lattice structure, and 65b indicates an edge portion to be attached to the second transparent substrate 61.

FIG. 5 is an enlarged photograph of some cell portions in the glass partition wall 65, where 65c is a portion where holes are formed by etching. Of course, it is also possible to form a partition by etching only a certain depth without forming a hole.

As such, the glass partition wall 65 is made of pure glass only, thereby providing high transparency in the actual display process.

It is preferable to attach the glass partition 65 produced as mentioned above to the 2nd transparent substrate 61 using an adhesive agent etc .. Of course, it is also possible to attach to the 1st transparent substrate 51 instead of the 2nd transparent substrate 61, and to comprise it.

In addition, as a raw material of the glass partition 65, it is not limited to the soda-lime glass mentioned above, If it is a glass material which can form a transparent partition, it can apply variously and can use.

Now, referring to FIG. 6, a method of manufacturing a transparent plasma display panel according to an exemplary embodiment of the present invention configured as described above will be described.

In the method of manufacturing a transparent plasma display panel according to an embodiment of the present invention, first, an electrode layer 54, a dielectric layer 55, and a transparent electrode 52 and a bus electrode 53 are formed on a first transparent substrate 51. The protective layer 57 is formed in order.

That is, after coating ITO or SnO ₂ on the first transparent substrate 51, the transparent electrode 52 is patterned by photolithography or the like, and the thinner bus electrode 53 on the transparent electrode 52 is photosensitive Ag paste. After printing the patterning by a photolithography method and the like to complete the electrode layer. Thereafter, the glass powder paste is printed on the electrode layer 54 by screen printing to form the transparent dielectric layer 55. The protective layer 57 is deposited on the dielectric layer 55 using a vacuum deposition method to manufacture the first transparent substrate set 50.

Apart from fabrication of the first transparent substrate, the transparent electrode layer 62 and the transparent dielectric layer 63 are sequentially formed on the second transparent substrate 61.

That is, the transparent electrode layer 62 constituting the address electrode is formed on the second transparent substrate 61 and the transparent dielectric layer 63 is formed thereon. The transparent electrode layer 62 and the transparent dielectric layer 63 are described above. It is preferable to proceed in the same manner as the method for forming the transparent electrode layer 54 and the transparent dielectric layer 55 in the first transparent substrate 51.

Apart from fabrication of the two transparent substrate sets, the glass plate is etched to produce a glass partition wall 65. At this time, the glass plate is set in consideration of the actual height of the partition wall, and the etching treatment method, as described above, puts a metal mask having a lattice structure on the thin glass plate to form a grid structure, and dissolves the glass material in Foshan. When the etching is performed using an etchant such as the glass plate, the glass partition wall 65 material having a plurality of cells arranged in a lattice structure on the glass plate is completed.

Next, the plate-shaped glass partition wall 65 manufactured as described above is fixed on the second transparent substrate 61. At this time, in the method of fixing the glass partition wall 65, it is preferable to attach the edge portion of the glass partition wall plate member to the second transparent substrate 61 using an adhesive or the like.

Next, the phosphor 67 is coated on the second transparent substrate 61 to which the glass partition wall 65 is attached. The phosphor 67 is a pore-known R.G.B. Printing method, the photosensitive paste method which exposure-etches by adding a photosensitive solvent using the fluorescent material, and the inkjet method which discharges the ink containing fluorescent substance by inkjet, and forms a fluorescent substance pattern can be used. At this time, it is also possible to use a transparent phosphor material.

In this way, the second transparent substrate set 60 is completed.

Next, as described above, when the first transparent substrate set 50 and the second transparent substrate set 60 are completed, the two transparent substrate sets 50 and 60 are made in the same manner as in the manufacturing method of a conventional plasma display panel. The transparent plasma display panel is manufactured by performing a vacuum evacuation process, a gas injection process, and the like between the two transparent substrates 50 and 60 which are matched with each other.

Another embodiment of the present invention will be described.

In the description of another embodiment of the present invention, the same reference numerals are given to the same components as those of the above-described embodiment, and repeated description thereof will be omitted.

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

The above-described transparent plasma display panel according to the exemplary embodiment of the present invention is a structure and a method of separately manufacturing the glass partition wall 65 and attaching and fixing the glass partition wall 65 to the second transparent substrate 61. The partition 61A is formed integrally with the transparent substrate 61 '.

That is, the transparent plasma display panel according to another embodiment of the present invention includes a transparent electrode layer 54, a transparent dielectric layer 55, and a transparent protective layer 57 that are sequentially provided on the first transparent substrate 51. The transparent electrode layer 62 ', the transparent dielectric layer 63', and the phosphor 67 'are formed in this order on the second transparent substrate 61' in which 61A is integrally formed.

Here, the barrier rib 61A formed integrally with the second transparent substrate 61 'may be formed using the same method as the method of forming the glass barrier wall 65 by etching the glass plate in the above-described embodiment. 61 ') is preferably formed by etching. Of course, the second transparent substrate 61 ′ uses a glass substrate having a thickness capable of forming a barrier rib 61A having a predetermined height, and in the etching process, only the desired depth is etched into the glass substrate, thereby partitioning the barrier rib 61A. Should be formed.

The transparent electrode layer 62 ', the transparent dielectric layer 65', and the phosphor 67 'are sequentially formed between the partition walls 61A of the second transparent substrate 61'.

To this end, the partition wall 61A formed on the second transparent substrate 61 'is preferably formed in a stripe structure instead of a lattice structure, unlike the glass partition wall 65 in the above-described embodiment.

Now, referring to FIG. 8, a manufacturing method of a transparent plasma display panel according to another embodiment of the present invention configured as described above will be described.

8 is a flowchart illustrating a method of manufacturing a transparent plasma display panel according to another embodiment of the present invention.

First, the transparent electrode layer 54, the transparent dielectric layer 55, and the protective layer 57 made of the transparent electrode 52 and the bus electrode 53 are sequentially placed on the first transparent substrate 51 in the same manner as in the above-described embodiment. Form.

Separately, the second transparent substrate 61 ′ is etched in the same manner as described above to form the partition wall 61A in a stripe structure.

The transparent electrode layer 62 ', the transparent dielectric layer 63', and the phosphor 67 'which constitute the address electrode are formed between the partition wall 61A having the stripe structure of the second transparent substrate 61' and the partition wall 61A. Apply sequentially. In this case, the transparent electrode layer 62 'and the transparent dielectric layer 63' may be formed using the photolithography method, the screen printing method, and the like described above.
Thereafter, the first transparent substrate set 50 and the second transparent substrate set 60 'manufactured as described above are matched, and a vacuum and gas injection process is performed between the matched two substrates 50 and 60'. To produce a transparent plasma display panel.

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Such a method of manufacturing a transparent plasma display panel according to another embodiment of the present invention is a method of forming another configuration except that the partition wall 61A is integrally formed on the second transparent substrate 61 '. It is preferred to be made the same or similar as in.

Meanwhile, various embodiments of the present invention described above have been described with respect to a transparent plasma display panel, but the present invention is not limited thereto, and the known plasma display panel having the rear substrate (for example, the second transparent substrate) is opaque in the same manner. In addition, a glass partition may be provided or the back substrate may be etched to form a structure in which the partition is integrally formed. At this time, the electrode layer, the dielectric layer, the phosphor, and the like, which are formed on the rear substrate, are made of an opaque material.

Plasma display panel according to the present invention as described above can provide a higher transmittance than the conventional partition wall made of an opaque material as the partition wall made of a glass material, and constitutes a rear substrate (second transparent substrate) If the component is also made of a transparent material, it is possible to provide image information in both directions, it can be easily applied to use for advertising or industrial display.

1 is an exploded perspective view illustrating a conventional AC plasma display panel;

2 is an exploded perspective view of a transparent plasma display panel according to an embodiment of the present invention;

3 is a perspective view illustrating a glass partition wall applied to an embodiment of the present invention;

4 is a photograph of a real glass partition wall manufactured according to an embodiment of the present invention,

5 is an enlarged photograph of an actual glass partition wall manufactured according to an embodiment of the present invention;

6 is a flowchart illustrating a method of manufacturing a transparent plasma display panel according to an embodiment of the present invention;

7 is an exploded perspective view of a transparent plasma display panel according to another embodiment of the present invention;

8 is a flowchart illustrating a method of manufacturing a transparent plasma display panel according to another embodiment of the present invention.

Claims (10)

First and second transparent substrates 51 and 61 spaced apart from each other at regular intervals to face each other; A transparent electrode layer 54 formed on a surface of the first transparent substrate 51 opposite to the second transparent substrate 61 and composed of a transparent electrode 52 and a bus electrode 53; The second transparent substrate 61 is formed on a surface of the second transparent substrate 61 opposite to the first transparent substrate 51 and formed in a direction crossing the transparent electrode layer 54 of the first transparent substrate 51. Transparent electrode layer 62 which comprises; Transparent dielectric layers 55 and 63 formed on the transparent electrode layer 54 of the first transparent substrate 51 and the transparent electrode layer 62 of the second transparent substrate 61, respectively; A protective layer 57 formed on the transparent dielectric layer 55 of the first transparent substrate 51; A glass partition wall 65 made of a glass material separately manufactured and disposed between the first and second transparent substrates to form a unit discharge cell; And a phosphor (67) formed in an inner region of the glass partition wall in the second transparent substrate (61). The method according to claim 1, The glass partition wall 65 is made of soda-lime glass (Soda-lime Glass), characterized in that the transparent plasma display panel. The method according to claim 1, The glass partition wall 65 is formed by etching a glass plate to form a plurality of partition walls, characterized in that the transparent plasma display panel. A first transparent substrate 51; A transparent electrode layer 54, a transparent dielectric layer 55, and a transparent protective layer 57 which are provided in order on one surface of the first transparent substrate 51; A second transparent substrate 61 'in which stripe-like partitions 61A for forming a discharge cell are integrally formed on a surface facing the transparent protective layer 54 of the first transparent substrate 51; A transparent electrode layer 62 'and a transparent dielectric layer 63' which are sequentially provided between the partition walls 61A of the stripe structure of the second transparent substrate 61 '; And a phosphor (67 ') formed on the transparent dielectric layer (63') between the partition walls (61A) of the second transparent substrate (61 '). The method according to claim 4, The partition wall 61A is formed by etching the second transparent substrate 61 '. delete A first step of sequentially forming a transparent electrode (52), a bus electrode (53), a dielectric layer (55), and a protective layer (57) on the first transparent substrate (51); A second step of sequentially forming a transparent electrode layer (62) made of transparent electrodes and a transparent dielectric layer (63) so as to form an address electrode on the second transparent substrate (61); A third step of etching the glass plate on the second transparent substrate 61 to separately manufacture, attach and fix the glass partition wall 65 in which each cell is formed in a lattice structure; A fourth step of applying the phosphor 67 between the glass partition walls 65 of the second transparent substrate 61 after the third step; A fifth step of matching the first transparent substrate 51 manufactured in the first step with the second transparent substrate 61 manufactured through the second to fourth steps; And a sixth step of performing a vacuum evacuation process and a gas injection process between the two transparent substrates (51) (61) matched after the fifth step. delete A first step of sequentially forming a transparent electrode (52), a bus electrode (53), a dielectric layer (55), and a protective layer (57) on the first transparent substrate (51); A second step of integrally forming the partition wall 65A having a stripe structure on the second transparent substrate 61 '; A third step of sequentially forming the transparent electrode layer 62 'and the transparent dielectric layer 63' between the stripe barriers 65A prepared in the second step by photolithography and screen printing; A fourth step of applying a phosphor (67 ') between the partition walls (65A); A fifth step of matching the first transparent substrate 51 manufactured through the first step with the second transparent substrate 61 'manufactured through the second to fourth steps; And a sixth step of performing a vacuum evacuation process and a gas injection process between the two substrates (51, 61 ') matched after the fifth step. The method according to claim 9, And forming a partition wall (65A) by etching the second transparent substrate (61 ') in the second step.

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