KR100604273B1 - Tray and fabricating apparatus of electro-luminescence display device having the same - Google Patents

Abstract

The present invention relates to a tray capable of improving productivity and an apparatus for manufacturing an electro-luminescence display device having the same.

An apparatus for manufacturing an electro-luminescence display on a substrate according to the present invention includes a substrate; A tray for supporting a plurality of packaging plates respectively corresponding to different electro-luminescence displays formed on the substrate; A plurality of pushers through the tray to simultaneously attach the plurality of packaging plates onto the substrate; The spacing between neighboring packaging plates on the tray is characterized in that between 0.1mm-3mm.

Description

TRAY AND FABRICATING APPARATUS OF ELECTRO-LUMINESCENCE DISPLAY DEVICE HAVING THE SAME}             

1 is a perspective view showing an apparatus for manufacturing a conventional electro-luminescence display.

FIG. 2 is a view showing an electro-luminescence display device formed on a substrate in the electro-luminescence display device shown in FIG.

3 is a view showing a packaging plate in the electro-luminescence display shown in FIG.

4 is a perspective view illustrating a tray in the electro-luminescence display shown in FIG. 1.

5 is a plan view of the tray shown in FIG.

6 is a perspective view showing an apparatus for manufacturing an electroluminescent display device according to an embodiment of the present invention.

FIG. 7 is a diagram showing an electro-luminescence display device formed on a substrate in the electro-luminescence display device shown in FIG.

FIG. 8 is a view showing a packaging plate in the electro-luminescence display shown in FIG.

FIG. 9 is a perspective view illustrating a tray in the electroluminescence display shown in FIG. 6. FIG.

10 is a plan view of the tray shown in FIG.

<Description of Symbols for Main Parts of Drawings>

1, 101: electro-luminescence display device 2, 102: substrate

4, 104 anode electrode 6, 106 hole injection layer

8, 108: hole transport layer 10, 110: organic light emitting layer

12, 112: electron transport layer 14, 114: electron injection layer

16, 116 cathode electrode 18, 118 organic compound layer

22, 122: seal system 27, 127: getter

30, 130: packaging plate 32, 132: first side

34, 134: second surface 36, 136: connecting surface

40, 140: tray 42, 142: guide hole

44: partition 46, 146: support surface

48, 148: protrusion 144, 145: first and second partition wall

50, 150: Pusher

The present invention relates to an apparatus for manufacturing an electro-luminescence display device, and more particularly, to a tray for improving productivity and an apparatus for manufacturing an electro-luminescence display device having the same.

Recently, various flat panel displays have been developed to reduce weight and volume, which are disadvantages of cathode ray tubes. Such flat panel displays include liquid crystal displays (hereinafter referred to as "LCDs"), field emission displays (FEDs) and plasma display panels (hereinafter referred to as "PDPs") and electro-lumines. Nessence (EL) display apparatuses, etc. Researches are being actively conducted to improve the display quality of such flat panel display apparatuses and to make large screens.

Among them, PDP is attracting attention as a display device which is light and small and is most advantageous for large screen because of its simple structure and manufacturing process. However, PDP has low luminous efficiency, low luminance and high power consumption. On the other hand, active matrix LCDs with thin film transistors ("TFTs") as switching elements are difficult to screen due to the use of semiconductor processes, but demand is increasing as they are mainly used as display elements in notebook computers. have. However, LCDs are difficult to make large areas and consume large power consumption due to the backlight unit. In addition, the LCD has a large optical loss and a narrow viewing angle by optical elements such as a polarizing filter, a prism sheet, and a diffusion plate.

In contrast, the EL display device is classified into an inorganic EL and an organic EL according to the material of the light emitting layer. The EL display device is a self-luminous device that emits light by itself and has advantages such as fast response speed and high luminous efficiency, luminance and viewing angle.

1 is a view showing an apparatus for manufacturing a conventional electro-luminescence display device.

Referring to FIG. 1, a conventional apparatus for manufacturing an electroluminescent display device includes a substrate 2 on which a plurality of EL display devices 1 are formed, and a plurality of EL display devices 1 formed on a substrate 2. A plurality of packaging plates 30 corresponding to the plurality of packaging plates 30, a tray 40 supporting the plurality of packaging plates 30, and a plurality of packaging plates 30 passing through the tray 40 simultaneously on the substrate 2. And a pusher 50 for attaching.

In each of the EL display devices 1, as shown in Fig. 2, an anode electrode 4 is formed on a substrate 2 in a transparent electrode pattern, and an organic compound layer 18 for light emission is formed thereon. The cathode electrode 16 is formed on the organic compound layer 18 as a metal electrode.

The anode electrode 4 is made of indium tin oxide (ITO), indium zinc oxide (IZO), indium tin oxide (zinc) on the substrate 2. It is formed by photolithgraphy using any one of materials such as oxide (Indium-Tin-Zinc-Oxide; ITZO). This anode electrode 4 is used as a data electrode.

In the organic compound layer 18, a hole injection layer 6 and a hole transfer layer 8 are sequentially formed on the anode electrode 4. An emission layer 10 is formed on the hole transport layer 8 to emit light. In addition, an electron transport layer 12 and an electron injection layer 14 are sequentially formed on the light emitting layer 10.

On the organic compound layer 18, a cathode electrode 16 such as aluminum (Al) having a high reflectance is formed. The cathode electrode 16 is used as a scan electrode.

In the EL display device 1, when a driving voltage and a current are applied to the anode electrode 4 and the cathode electrode 16, holes in the hole injection layer 6 and electrons in the electron injection layer 14 are respectively emitted from the light emitting layer 10. Proceed toward) to excite the fluorescent material in the light emitting layer (10). In this way, the visible light generated from the light emitting layer 10 displays an image or an image on the principle of escaping out through the transparent anode electrode 4.

As shown in FIG. 3, the packaging plate 30 is formed of glass, plastic, canister, or the like to prevent the light emitting layer 10 from being easily deteriorated by moisture and oxygen in the atmosphere. The packaging plate 30 may include a first surface 32 having a sealant 22 applied to an edge thereof, a second surface 34 having a getter 27 for absorbing moisture and oxygen, and It is provided with a connection surface 36 connecting the first and second surfaces 32, 34 so that the first and second surfaces 32, 34 have a step height of a predetermined height.

After the sealant 22 is applied to the first surface 32, the sealant 22 is bonded to the substrate 2 so that the packaging plate 30 is attached to the substrate 2. The first surface 32 of the packaging plate 30 is bonded to the substrate 2 by the sealant 22 to be in a vacuum state, and the cathode electrode 16 and the organic compound layer 18 are formed by moisture and oxygen in the air. This damage can be prevented from being catastrophically affected. Here, the sealant 22 is ultraviolet curing epoxy or the like. The ultraviolet curable epoxy is pressurized between the substrate 2 and the packaging plate 30 by using a technique such as dispensing or printing to be bonded, and then irradiated with ultraviolet rays to cure. Then, after sealing using the sealant 22, the organic EL device is filled with an inert gas without moisture or oxygen.

The second surface 34 is formed with a getter 27 made of a material such as barium oxide (BaO) or calcium oxide (CaO) to absorb moisture and oxygen. The bottom surface of the second surface 34 is formed concave so that the getter 27 can be formed. In order to prevent the getter 27, which is a moisture absorbent, from falling on the organic compound layer 18, a semipermeable membrane (not shown) is attached to the second surface 34 so that moisture, oxygen, and the like enter and exit. As the semipermeable membrane, materials such as Teflon, polyester, and paper are used.

The connection surface 36 vacuums the internal space of the packaging plate 30 by allowing the first surface 32 attached to the substrate 2 and the second surface 34 on which the getter 27 is formed to have a step height. It plays a role in making a state. In this case, the connection surface 36 may vertically connect the first and second surfaces 32 and 34, and may connect the first and second surfaces 32 and 34 with a predetermined slope.

The tray 40 serves to support a plurality of packaging plates 30 for attaching to the substrate 2. To this end, the tray 40 includes a plurality of guide holes 42 and a plurality of guide holes for guiding each of the plurality of pushers 50 toward the packaging plates 30 as shown in FIGS. 4 and 5. A partition wall 44 for partitioning 42, a support surface 46 formed on the partition wall 44 to support the packaging plates 30, and protrude from the support surface 46 to seat the substrate 2. And a protrusion 48 to be formed.

The packaging plate 30 placed in the guide hole 42 is pushed up by the pusher 50 to bond the packaging plate 30 to the substrate 2. The size of the guide holes 42 is determined according to the size of the packaging plate 30. Here, the guide holes 42 are formed differently from the shape of the packaging plate 30 (for example, a circle or a polygon including a rhombus) so that each corner of the packaging plate 30 can be placed.

The partition 44 serves to partition the adjacent guide holes 42 in the horizontal direction (or vertical direction). The height of the partition wall 44 is set to approximately 8 to 10 mm, and in consideration of this height, the width of the partition wall 44 is processed to be set to approximately 3 mm due to workability. At this time, when the height of the partition wall 44 is set to 10 mm or more, the width of the partition wall 44 is processed to be greater than at least 3 mm.

The support surface 46 is formed on the partition wall 44 of the tray 40 to support each corner of the packaging plates 30. This support surface 46 causes the packaging plates 30 to be placed on the tray 40.

The substrate 2 on which the packaging plate 30 is to be bonded is seated on the protrusion 48, and the packaging plate 30 on which the seal member 22 is applied is spaced apart from the substrate 2 at predetermined intervals. It protrudes from the support surface 46 formed in the predetermined height.

The pusher 50 is pressed in the direction of the arrow to pass through the guide hole 42 formed in the tray 40 serves to attach a plurality of packaging plates 30 on the substrate (2) at the same time.

However, since the tray 40 for attaching the packaging plate 30 to the substrate 2 must be processed so that the width of the partition wall 44 is set to approximately 3 mm due to workability, the packaging plate 30 laminated on the tray 40 ( The number of 30 is limited. That is, since the distance T1 between the plurality of packaging plates 30 is wide, the number of organic EL display devices that can be fabricated on the substrate 2 is limited, resulting in a decrease in productivity.

Accordingly, an object of the present invention is to provide a tray capable of improving productivity and an apparatus for manufacturing an electro-luminescence display device having the same.

In order to achieve the above object, a tray according to an embodiment of the present invention includes a partition wall for supporting a plurality of packaging plates respectively corresponding to different electro-luminescence display devices formed on a substrate; The spacing between neighboring packaging plates on the partition is characterized in that between 0.1mm-3mm.

The tray further includes a plurality of guide holes for guiding each of the plurality of pushers to push the packaging plates toward the substrate.

In the tray, the partition wall may include a first partition wall for partitioning the guide holes, a second partition wall protruding from the first partition wall to provide a gap between the packaging plates, and formed on the second partition wall. It has a support surface for supporting the plates.

The tray further includes a protrusion protruding from the support surface to seat the substrate.

An apparatus for manufacturing an electroluminescent display device according to an embodiment of the present invention includes a substrate; A tray for supporting a plurality of packaging plates respectively corresponding to different electro-luminescence displays formed on the substrate; A plurality of pushers through the tray to simultaneously attach the plurality of packaging plates onto the substrate; The spacing between neighboring packaging plates on the tray is characterized in that between 0.1mm-3mm.

In the tray, the partition wall may include a first partition wall for partitioning the guide holes, a second partition wall protruding from the first partition wall to provide a gap between the packaging plates, and formed on the second partition wall. It has a support surface for supporting the plates.

The tray further includes a protrusion protruding from the support surface to seat the substrate.

In the manufacturing apparatus of the electro-luminescence display device, the thickness of the first partition wall is 3mm-5mm.

In the manufacturing apparatus of the electro-luminescence display device, the packaging plate is mounted on the upper end of the support surface.

In the manufacturing apparatus of the electro-luminescence display device, the spacing between the packaging plates is characterized in that between 0.1mm-1mm.

Other objects and features of the present invention in addition to the above objects will become apparent from the description of the embodiments with reference to the accompanying drawings.

A preferred embodiment of the present invention will be described with reference to FIGS. 6 to 10.

6 is a diagram illustrating an apparatus for manufacturing an electro-luminescence display according to an embodiment of the present invention.

Referring to FIG. 6, an apparatus for manufacturing an electroluminescent display device according to an exemplary embodiment of the present invention includes a substrate 102 on which a plurality of EL displays 101 are formed, and a plurality of ELs formed on a substrate 102. A plurality of packaging plates 130 corresponding to the display device 101, a tray 140 supporting the plurality of packaging plates 130, and a plurality of packaging plates 130 penetrate through the tray 140 to form a substrate ( And a pusher 150 for attaching simultaneously on 102.

Each of the EL display devices 101 forms an anode electrode 104 in a transparent electrode pattern on a substrate 102 as shown in Fig. 7, and forms an organic compound layer 118 for light emission thereon. The cathode electrode 116 is formed on the organic compound layer 118 as a metal electrode.

The anode electrode 104 is formed of indium tin oxide (ITO), indium zinc oxide (IZO), indium tin oxide (ZIN), and the like on the substrate 102. It is formed by photolithography using any one of materials such as oxide (Indium-Tin-Zinc-Oxide; ITZO). The anode electrode 104 is used as a data electrode.

In the organic compound layer 118, a hole injection layer 106 and a hole transfer layer 108 are sequentially formed on the anode electrode 104. An emission layer 110 is formed on the hole transport layer 108 to emit light. In addition, an electron transport layer 112 and an electron injection layer 114 are sequentially formed on the emission layer 110.

On the organic compound layer 118, a cathode electrode 116 such as aluminum (Al) having high reflectance is formed. The cathode electrode 116 is used as a scan electrode.

In the EL display device 101, when a driving voltage and a current are applied to the anode electrode 104 and the cathode electrode 116, the holes in the hole injection layer 106 and the electrons in the electron injection layer 114 respectively emit light. Proceeding to 110, the fluorescent material in the light emitting layer 110 is excited. In this way, the visible light generated from the light emitting layer 110 displays an image or an image on the principle that the light exits through the transparent anode electrode 104.

As shown in FIG. 8, the packaging plate 130 is formed of glass, plastic, canister, or the like in order to prevent the light emitting layer 110 from being easily degraded by moisture and oxygen in the atmosphere. The packaging plate 130 may include a first surface 132 on which the sealant 122 is applied, a second surface 134 on which a getter 127 for absorbing moisture and oxygen is formed, and the first and second surfaces. The connection surface 136 connects the first and second surfaces 132 and 134 such that the second surfaces 132 and 134 have a step height of a predetermined height.

After the sealant 122 is applied to the first surface 132, the sealant 122 is bonded to the substrate 12 so that the packaging plate 130 is attached to the substrate 102. The first surface 132 of the packaging plate 130 is bonded to the substrate 102 by the sealant 122 to be in a vacuum state, and thus the cathode electrode 116 and the organic compound layer 118 by moisture and oxygen in the air. This damage can be prevented from being catastrophically affected. Here, the sealant 122 is an ultraviolet curing epoxy or the like. The ultraviolet curable epoxy is pressurized between the substrate 102 or the packaging plate 130 using a technique such as dispensing or printing to be bonded, and then irradiated with ultraviolet rays to cure. Then, after sealing using the sealant 122, the organic EL device is filled with an inert gas without moisture or oxygen.

The second surface 134 is formed with a getter 127 made of a material such as barium oxide (BaO) or calcium oxide (CaO) to absorb moisture and oxygen. The bottom surface of the second surface 134 is formed to be concave so that the getter 127 can be formed. In order to prevent the getter 127, which is a moisture absorbent, from falling on the organic compound layer 118, a semipermeable membrane (not shown) is attached to the second surface 134 to allow moisture, oxygen, and the like to enter and exit. As the semipermeable membrane, materials such as Teflon, polyester, and paper are used.

The connection surface 136 vacuums the internal space of the packaging plate 130 by allowing the first surface 132 attached to the substrate 102 and the second surface 134 on which the getter 127 is formed to have a step height. It plays a role in making a state. In this case, the connection surface 136 may vertically connect the first and second surfaces 132 and 134, and may connect the first and second surfaces 132 and 134 with a predetermined slope.

The tray 140 serves to support a plurality of packaging plates 130 for attaching to the substrate 102. To this end, the tray 140 includes a plurality of guide holes 142 and a plurality of guide holes for guiding each of the plurality of pushers 150 toward the packaging plates 130 as shown in FIGS. 9 and 10. On the first partition 144 for partitioning 142, the second partition 145 protruding from the first partition 144 to provide a gap between the packaging plates 130, and on the second partition 145. And a support surface 146 formed to support the packaging plates 130, and a protrusion 148 protruding from the support surface 146 to seat the substrate 102.

The packaging plate 130 placed in the guide hole 142 is pushed up by the pusher 150 to bond the packaging plate 130 to the substrate 102. The size of the guide holes 142 is determined according to the size of the packaging plate 130. Here, the guide holes 142 are formed differently from the shape of the packaging plate 130 (for example, a circle or a polygon including a rhombus) so that each corner of the packaging plate 130 can be placed.

The first partition wall 144 partitions the adjacent guide holes 142 in the horizontal direction (or vertical direction). The height of the partition wall 144 is set to approximately 8 to 10 mm, and in consideration of this height, the width of the partition wall 144 is processed to be set to approximately 3 mm to 5 mm due to workability. At this time, when the height of the partition wall 144 is set to 10mm or more, the width of the partition wall 144 is processed to be larger than at least 3mm.

The second partition wall 145 protrudes to a predetermined height from the first partition wall 144 to serve as a gap between the packaging plates 130 placed on the tray 140. The width of the second partition wall 145 is set between 0.1 mm and 3 mm, preferably between 0.1 mm and 1 mm. Here, the width of the second partition 145 can be processed to be set between 0.1mm to 3mm because the width of the first partition 144 is processed to be set to approximately 3mm to maintain the stability of processing.

The support surface 146 is formed on the second partition 145 of the tray 140 to support each corner of the packaging plates 130. That is, the packaging plates 130 are mounted on the upper end of the support surface 146.

The substrate 12 to which the packaging plate 130 is to be bonded is seated on the protrusion 148, and the second partition wall 144 is spaced apart from the packaging plate 130 to which the seal member 122 is applied and the substrate 102 at predetermined intervals. Protrude to a predetermined height.

The pusher 150 is pressed in the direction of the arrow to penetrate through the guide hole 142 formed in the tray 140 serves to attach a plurality of packaging plates 130 on the substrate 102 at the same time.

In the manufacturing apparatus of the electro-luminescence display device according to the embodiment of the present invention, the tray 140 supporting the plurality of packaging plates 130 is formed on the first partition wall 144 having a width of approximately 3 mm to 5 mm. The second partition wall 145 is formed between about 0.1mm to 3mm. The spacing T2 between the plurality of packaging plates 130 seated on the tray 140 may be reduced by mounting the packaging plate 130 on the support surface 146 formed on the narrow second partition wall 145. It becomes possible. Accordingly, more packaging plates 130 may be stacked on the tray 140, thereby manufacturing more electro-luminescence display 101 on the substrate 102. Accordingly, not only can productivity be improved, but cost can be reduced.

As described above, according to the tray and the manufacturing apparatus of the electro-luminescence display device having the same according to the present invention, the width of the first partition wall is set within the range in which the tray can be stably processed. The second barrier ribs having a narrower width than the first barrier ribs may be formed on the first barrier ribs to reduce the distance between the packaging plates stacked on the tray. Accordingly, it is possible to stack more packaging plates on the tray, thereby manufacturing more electro-luminescence displays on the substrate, thereby improving productivity as well as reducing costs.

Those skilled in the art will appreciate that various changes and modifications can be made without departing from the technical spirit of the present invention. Therefore, the technical scope of the present invention should not be limited to the contents described in the detailed description of the specification but should be defined by the claims.

Claims (10)

Barrier ribs for supporting a plurality of packaging plates respectively corresponding to different electro-luminescence displays formed on the substrate; And a distance between neighboring packaging plates on the partition wall is between 0.1 mm and 3 mm. The method of claim 1, And a plurality of guide holes for guiding each of the plurality of pushers to push the packaging plates toward the substrate. The method of claim 2, The partition wall, A first partition wall for partitioning the guide holes; A second partition wall protruding from the first partition wall to provide a gap between the packaging plates; And a support surface formed on the second partition wall to support the packaging plates. The method of claim 3, wherein And a protrusion protruding from the support surface to mount the substrate. A substrate; A tray for supporting a plurality of packaging plates respectively corresponding to different electro-luminescence displays formed on the substrate; A plurality of pushers through the tray to simultaneously attach the plurality of packaging plates onto the substrate; And an interval between neighboring packaging plates on the tray is between 0.1 mm and 3 mm. The method of claim 5, The tray, A guide hole for guiding each of the plurality of pushers toward packaging plates; A first partition wall for partitioning the guide holes; A second partition wall protruding from the first partition wall to provide a gap between the packaging plates; And a support surface formed on the second partition wall to support the packaging plates. The method of claim 6, And a protruding portion protruding from the support surface to seat the substrate. The method of claim 6, And a thickness of the first partition wall is between 3 mm and 5 mm. The method of claim 6, And the packaging plate is mounted on an upper end of the support surface. The method of claim 5, Wherein the spacing between the packaging plates is between 0.1 mm and 1 mm.

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