KR20060055245A - Manufacturing method of six separated glass substrate for plasma display panel - Google Patents

Abstract

The present invention relates to a six-chamfered glass substrate for a plasma display panel for adjusting the position of the exhaust hole of each unit panel on the six-chamfered mother glass substrate has an effect of reducing the manufacturing cost.

The present invention relates to a method for manufacturing a six-chamfered glass substrate for a plasma display panel for chamfering a unit panel for manufacturing a plasma display panel, wherein the mother glass substrate is divided into six regions to form a unit panel. And a panel partitioning step and forming exhaust holes at the same positions in the unit panels divided into six areas.

Plasma Display Panel, Glass Board, Exhaust Hole, Multifaceted, 6 Chamfered

Description

Manufacturing Method of Six Separated Glass Substrate for Plasma Display Panel

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

2 is a view for explaining a method of manufacturing a general plasma display panel.

3 is a view for explaining a conventional method for manufacturing a glass substrate for a plasma display panel.

4 is a view showing an example in which an exhaust pipe is connected to an exhaust hole formed on a glass substrate for a conventional plasma display panel.

5 is a view for explaining a manufacturing method of a six-chamfered glass substrate for a conventional plasma display panel.

FIG. 6 is a diagram for describing the unit panel of FIG. 5 in more detail.

7 is a view for explaining a manufacturing method of a six-chamfered glass substrate for a plasma display panel of the present invention.

8A to 8D are views for explaining a method of forming the exhaust hole in more detail.

9A to 9D are views for explaining in more detail to each region 8A to 8D.                 

<Explanation of symbols for the main parts of the drawings>

80: mother glass substrate 81: exhaust hole

The present invention relates to a glass substrate for a plasma display panel, and more particularly, to a six chamfered glass substrate for a plasma display panel to reduce the manufacturing cost by adjusting the position of the exhaust hole of each unit panel on the six-chamfered mother glass substrate.

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) and An inert gas containing the same main discharge gas 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 in which a plurality of sustain electrode pairs formed by pairing a scan electrode 102 and a sustain electrode 103 are formed on a front glass 101, which is a display surface on which an image is displayed. The back 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 back 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 one or more upper dielectric layers 104 that limit the discharge current and insulate the electrode pairs, and to facilitate the discharge conditions on the upper dielectric layer 104 top surface. A protective layer 105 on which magnesium oxide (MgO) is deposited is formed.

The rear substrate 110 is arranged in such a manner that a plurality of discharge spaces, that is, barrier ribs 112 of a stripe type (or well type) 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. A method of manufacturing a general plasma display panel having such a structure will be described with reference to FIG. 2.

2 is a view for explaining a method of manufacturing a general plasma display panel.

As shown in FIG. 2, a general method of manufacturing a plasma display panel includes a substrate forming step (S20) of forming a front substrate and a rear substrate using a front glass substrate and a rear glass substrate, and bonding the front substrate and the rear substrate to each other. (S21) and the exhaust step (S22) for exhausting the impurity gas such as moisture or nitrogen between the bonded front substrate and the rear substrate to the outside through a predetermined exhaust pipe (S22), and then helium between the bonded front substrate and the rear substrate The discharge gas injection step (S23) for injecting a discharge gas, such as xenon through a predetermined exhaust pipe.

The substrate forming step (S20) of forming the front substrate and the rear substrate with the front glass substrate and the rear glass substrate, respectively, is performed by combining with a predetermined guide plate for fixing the electrode, dielectric layer, and protection on the front glass substrate and the rear glass substrate which are fixed and aligned. It is a step of forming a layer, a partition, a phosphor layer, and the like. In more detail, an electrode, a dielectric layer, a protective layer are formed on the front glass substrate and the rear glass substrate, or an electrode, a dielectric layer, a partition wall, and a phosphor layer are formed to form the front substrate and the rear substrate. At this time, an impurity gas remaining inside the panel is discharged to the rear glass substrate in which the electrode, the dielectric layer, the partition wall, and the phosphor layer are formed during the exhaust gas of the exhausting step (S22) or the discharging gas injection process of the discharging gas injection step (S23). The exhaust hole for connecting the exhaust pipe for exhausting the furnace or for injecting the discharge gas into the panel is integrally formed.

Bonding step (S21) is a step of applying a predetermined seal (Seal) between the front substrate and the rear substrate and a predetermined pressing means such as a clip on the edges of the front substrate and the rear substrate is bonded to each other. Hereinafter, the front substrate and the rear substrate are bonded to each other.

The evacuation step S22 is a step of discharging impurities, such as moisture or nitrogen, between the front substrate and the back substrate bonded in the bonding step S21 to the outside of the panel using a predetermined exhaust means, for example, a vacuum pump. .

Discharge gas injection step (S23) is an inert gas containing a small amount of xenon and a main discharge gas such as neon, helium or a mixture of neon and helium inside the panel, the front substrate and the rear substrate as a predetermined gas injection means Injecting into the panel.

Thereafter, the plasma display panel is completed through a process such as sealing, firing, and module attaching.

In such a method of manufacturing a plasma display panel, an exhausting process of exhausting impurity gas remaining inside the panel to the outside of the panel and an injection process of injecting discharge gas into the panel are performed through an exhaust pipe in the above-described exhausting step (S22). This exhaust pipe is connected to the exhaust hole. Such an exhaust hole is formed on a glass substrate for manufacturing a plasma display panel. Looking at the glass substrate for manufacturing a plasma display panel having such an exhaust hole is as shown in FIG.

3 is a view for explaining a conventional method for manufacturing a glass substrate for a plasma display panel.

As shown in FIG. 3, a conventional glass substrate for a plasma display panel includes an exhaust hole 31, which is formed at a predetermined position on the glass substrate 30 for a plasma display panel. The exhaust hole 31 is preferably formed on the ineffective surface on the glass substrate 30, the size of the exhaust hole 31 can be changed according to the size of the exhaust pipe to be connected. Here, the glass substrate 30 for the plasma display panel is a front glass substrate or a rear glass substrate. An example in which an exhaust pipe is connected to the exhaust hole 31 is as shown in FIG. 4.

4 is a view showing an example in which an exhaust pipe is connected to an exhaust hole formed on a glass substrate for a conventional plasma display panel. As illustrated, the exhaust pipe 40 is connected to the exhaust hole 31 formed on the glass substrate 30 for the conventional plasma display panel.

On the other hand, in recent years, in order to lower the manufacturing cost of the plasma display panel, a multi-faceted method of producing a plurality of panels with a single glass substrate has been applied. This multi-faceted method first takes a plurality of unit panels by cutting and grinding one mother glass substrate, which is the base material of the unit panel, to take a unit panel that is a substrate of the front substrate and the rear substrate. In this way, a method of taking a plurality of unit panels from a single mother glass substrate is called a multifaceted method, and is divided into three chamfered and four chamfered methods according to the number of unit panels to be taken. As many exhaust holes as the number of chamfered unit panels are formed on the mother glass substrate. An example in which an exhaust hole is formed in a glass substrate for a plasma display panel applied to the multi-sided chamfering method will be described below with reference to six chamfering examples.

FIG. 5 is a view for explaining a method of manufacturing a six-chamfered glass substrate for a plasma display panel having a conventional exhaust hole.

As shown in FIG. 5, the six-chamfered glass substrate 50 for a plasma display panel in which a conventional exhaust hole is formed has six zones, that is, six unit panels P ₁ , P ₂ , P ₃ , P ₄ , and P. _5, P ₆ ) divided into zones for chamfering, and a predetermined exhaust pipe in each of the zones for chamfering the _six unit panels P ₁ , P ₂ , P ₃ , P ₄ , P _{5, and} P ₆ set in this way Exhaust holes 51 for connecting (not shown) are integrally formed. Thereafter, a dielectric layer, an electrode, and the like are patterned to form a glass substrate 50 for the plasma display panel, and each unit panel P ₁ , P ₂ , P ₃ , P ₄ , P _{5, and} P ₆ is divided. By separating along the spare parts (A, B) for the purpose, one glass substrate 50 eventually produces six unit panels (P ₁ , P ₂ , P ₃ , P ₄ , P _5, P ₆ ) .

Here, the above-described exhaust hole 51 is formed at a predetermined position of a zone for chamfering each unit panel P ₁ , P ₂ , P ₃ , P ₄ , P _5, P ₆ , and the plasma display of such exhaust hole The position on the panel glass substrate 50 is formed at a position where the formation process of the exhaust hole 51 is easily performed. For example, each exhaust hole 51 is formed in the edge portion of the glass substrate 50 for the plasma display panel. The unit panels P ₁ , P ₂ , P ₃ , P ₄ , P _{5, and} P ₆ in which the exhaust holes 51 are formed will be described in more detail as shown in FIG. 6.

FIG. 6 is a diagram for describing the unit panel of FIG. 5 in more detail.

As shown in FIG. 6, in the unit panels P ₁ , P ₂ , and P ₃ of (a), an exhaust hole 51 is formed in the upper left portion, and unit panels P ₄ , P _{5, and} P ₆ of (b). The exhaust hole 51 is formed in the lower right end portion. As the portions in which the exhaust holes 51 are located are different from each other, the phosphor array structure of the unit panel is affected. For example, assuming that the phosphors are arranged in the order of red (R), green (G), and blue (B) as shown in FIG. 6, the unit panels P ₁ , P ₂ , and P ₃ of (a) are exhaust holes ( 51, R, G, and B phosphors are arranged in order, and in the unit panels P ₄ , P _{5, and} P ₆ of (b), B, G, and R phosphors are arranged in order along the exhaust hole 51. As a result, (a) units of panel P _1, P _2, Unit panel P _4, P _5, P ₆ and P ₃ in (b) of the units to each other becomes a panel of other structures. Accordingly, the management of the unit panels P ₁ , P ₂ , P ₃ of (a) and the management of the unit panels P ₄ , P _5, P ₆ of (b) should be different. For example, the position of the exhaust pipe of the plasma display panel manufactured from the unit panels P ₁ , P ₂ , and P ₃ of (a) is changed, and thus the position on the plasma display panel to which the driving circuit is attached is changed. As a result, the unit panels P ₁ , P ₂ , P ₃ of (a) and the unit panels P ₄ , P _5, P ₆ of (b) must go through different logistics systems, and also through different manufacturing processes. It must be made of panels.

For this reason, costs such as logistics costs, design costs, etc. are increased, which causes the manufacturing cost to rise rapidly.

In order to solve this problem, an object of the present invention is to provide a method for manufacturing a six-chamfered glass substrate for a plasma display panel in which exhaust holes are formed at the same position on each unit panel.

The present invention for achieving the above object, the present invention, in the manufacturing method of a six-chamfered glass substrate for plasma display panel for chamfering six unit panels for plasma display panel manufacturing, mother glass to form a unit panel And a unit panel partitioning step of partitioning the substrate into six areas, and forming exhaust holes at the same position in the unit panel partitioned into six areas.

Here, the exhaust holes are each formed in any one corner portion on the area partitioned to form the unit panel.

In addition, the center of the exhaust hole is characterized in that spaced apart from each other by a distance of 1mm or more and 50mm or less from the cutting surface for cutting the mother glass substrate for each unit panel.

Hereinafter, a method of manufacturing a four chamfered glass substrate for a plasma display panel of the present invention will be described in detail with reference to the accompanying drawings.

7 is a view for explaining a manufacturing method of a six-chamfered glass substrate for a plasma display panel of the present invention.

As shown in FIG. 7, in the method of manufacturing a six-chamfered glass substrate for a plasma display panel of the present invention, first, six mother glass substrates are formed to form six unit panels in a unit panel partitioning step S70. Partition into zones.

Thus, the formation position of the exhaust hole for connecting the exhaust pipe to the predetermined position of each of the six areas divided by the unit panel partition step is specified (S71). Here, when designating the positions for forming the exhaust holes, designate that the positions of the exhaust holes are the same on each of the six areas.

The exhaust hole having a predetermined depth and diameter is drilled at the position specified in the exhaust hole formation position designation step at the position specified in step S71 (S72).

Here, a method of designating a position at which the exhaust hole is to be formed and forming the exhaust hole at the designated position will be described in more detail with reference to FIGS. 8A to 8D.

8A to 8D are diagrams for describing a method of forming an exhaust hole in more detail.

As shown in FIGS. 8A to 8D, the mother glass substrate 80 is divided into six regions P ₁ , P ₂ , P ₃ , P ₄ , P _{5, and} P ₆ for forming six unit panels. Exhaust holes 81 are formed in each of the _six divided regions P ₁ , P ₂ , P ₃ , P ₄ , P _{5, and} P ₆ . In the case of dividing into six areas in this manner, the mother glass substrate 80 is arranged along the margins A and B for dividing the unit panels P ₁ , P ₂ , P ₃ , P ₄ , P _{5, and} P ₆ . Separate. At this time, the formation positions of the exhaust holes 81 are the same in each of the six regions P ₁ , P ₂ , P ₃ , P ₄ , P _{5, and} P ₆ . Here, the formation position of the above-described exhaust hole 81 is any of the six areas described above, that is, the area P ₁ , P ₂ , P ₃ , P ₄ , P _5, P ₆ partitioned to form the unit panel. It is more preferable that they are respectively formed in one corner portion.

For example, referring to 8a, the exhaust holes 81 are formed at the upper left of each of the _six regions P ₁ , P ₂ , P ₃ , P ₄ , P _{5, and} P ₆ . The exhaust hole 81 is formed at this point on the ineffective surface of the plasma display panel. 8B shows an example in which the exhaust holes 81 are formed on the six upper regions P ₁ , P ₂ , P ₃ , P ₄ , P _{5, and} P _{6 in the} upper right side, respectively. In addition, an example in which the exhaust hole 81 is formed on the lower right side on each of the _six areas P ₁ , P ₂ , P ₃ , P ₄ , P _{5, and} P _{6 is} shown on the left side of each of the six areas. An example in which the exhaust hole 81 is formed at the bottom is shown in FIG. 8D.

Here, the position of the exhaust hole 81 in each of the areas P ₁ , P ₂ , P ₃ , P ₄ , P _{5, and} P ₆ partitioned to form the unit panel is described. Since the exhaust hole 81 has a diameter of a predetermined size, it must be located on an ineffective surface on the areas P ₁ , P ₂ , P ₃ , P ₄ , P _{5, and} P ₆ , the center of the exhaust hole 81 ₁ mm from the cutting surface for cutting the edges of the mother glass substrate 80 or the respective regions P ₁ , P ₂ , P ₃ , P ₄ , P _{5, and} P ₆ partitioned to form the unit panel It is formed to be spaced apart by a distance of more than 50mm.

In addition, in consideration of efficiency and workability in manufacturing the plasma display panel, the mother glass substrate 80 having the above-described exhaust hole 81 is preferably a mother glass substrate for manufacturing a back substrate.

In this manner, each region P ₁ , P ₂ , P ₃ , P ₄ , P _{5, and} P ₆ for dividing the unit panel in which the exhaust hole 81 is formed will be described in more detail with reference to FIGS. 9A to 9D. .

9A to 9D are diagrams for describing FIG. 8A to FIG. 8D in more detail for each region.                     

First, referring to 9a, the arrangement of phosphors in each region P ₁ , P ₂ , P ₃ , P ₄ , P _{5, and} P _{6 in} which exhaust holes are formed by the method of FIG. 8A is illustrated. When the exhaust hole 81 is formed by the method of FIG. 8A, as shown in FIG. 9A, after the exhaust hole 81 in all regions P ₁ , P ₂ , P ₃ , P ₄ , P _{5, and} P ₆ , Red (R), green (G), and blue (B) phosphors are arranged side by side in order. Similarly, when the exhaust hole 81 is formed by the method of FIG. 8B, as shown in FIG. 9B, the red (R), in all regions P ₁ , P ₂ , P ₃ , P ₄ , P _5, P ₆ , The exhaust hole 81 is positioned after the green (G) and blue (B) phosphors are arranged in order.

In addition, when the exhaust hole 81 is formed by the method of FIG. 8C, as shown in FIG. 9C, red (R) and green color are applied in all regions P ₁ , P ₂ , P ₃ , P ₄ , P _{5, and} P ₆ . The exhaust holes 81 are positioned after the (G) and blue (B) phosphors are arranged in sequence. In FIG. 9C, unlike the case of FIG. 9B, each region P ₁ , P ₂ , P ₃ , P ₄ , The exhaust hole 81 is located at the lower right end of P _{5 and} P ₆ .

In addition, when the exhaust hole 81 is formed by the method of FIG. 8D, as shown in FIG. 9D, after the exhaust hole 81 in all regions P ₁ , P ₂ , P ₃ , P ₄ , P _{5, and} P ₆ . Red (R), green (G), and blue (B) phosphors are arranged in order in parallel to each other. In FIG. 9D, unlike the case of FIG. 9A, each region P ₁ , P ₂ , P ₃ , P ₄ , and P _{5 , The} exhaust hole 81 is located at the lower left end of P ₆ ).

As a result, the unit panels of all the areas P ₁ , P ₂ , P ₃ , P ₄ , P _{5, and} P _{6 become} unit panels having a mode-like structure. Accordingly, management of unit panels of all areas P ₁ , P ₂ , P ₃ , P ₄ , P _{5, and} P ₆ may be integrated into one. For example, a plasma display panel made of unit panels of such areas P ₁ , P ₂ , P ₃ , P ₄ , P _{5, and} P ₆ has the same exhaust pipe position, and a plasma display to which a driving circuit is attached. The positions on the panels are identical to each other. As a result, the unit panels of all regions P ₁ , P ₂ , P ₃ , P ₄ , P _{5, and} P ₆ may be manufactured as plasma display panels through the same manufacturing process.

For this reason, costs such as logistics costs and design costs are reduced.

As described above, those skilled in the art will appreciate that the present invention can be implemented in other specific forms without changing the technical spirit or essential features.

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 in detail above, the present invention is to form an exhaust hole in the same position of each area partitioned by each unit panel of the plasma display panel six-chamfered glass substrate to reduce the cost such as logistics cost, design cost, It is effective in lowering the manufacturing cost.

Claims (3)

In the manufacturing method of a six-chamfered glass substrate for a plasma display panel for chamfering six unit panels for plasma display panel manufacturing, A unit panel partitioning step of partitioning a mother glass substrate into six regions to form the unit panel; Forming exhaust holes at the same positions in the unit panels divided into the six areas; Method of manufacturing a six-chamfered glass substrate for a plasma display panel comprising a. The method of claim 1, And the exhaust holes are formed at any one corner portion of the area partitioned to form the unit panel, respectively. The method according to claim 1 or 2, The center of the exhaust hole is a chamfered glass substrate for plasma display panel, characterized in that spaced apart from the edge of the mother glass substrate or the cutting surface for cutting the mother glass substrate for each unit panel by a distance of 1mm or more and 50mm or less, respectively. Way.

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