KR101083321B1 - Plasma display pannel for multi-screen and producing forming method thereof - Google Patents

Abstract

The present invention relates to a plasma display panel for a multi-screen, the front substrate and the back substrate is sealed with an airtight sealing material, and as a part of the sealing material is exposed to the outside of the front substrate and the back substrate as compressed, the conductive epoxy is pressed on the transparent film In the plasma display panel for multi-screen, wherein the conductive mesh film filter is attached to the front surface of the front substrate to absorb electromagnetic waves, the transparent film filter is attached so that the conductive mesh is exposed to a width less than or equal to the width where the sealing material is exposed to the outside. On the ground, a grounding means is applied in the form of bonding with the exposed mesh as a means for providing a grounding of the conductive mesh to shield the electromagnetic waves. By minimizing the space for shielding electromagnetic waves by such a configuration, it is possible to configure a multi-screen in which each screen is closely coupled.

Description

Plasma display panel for multi-screen {PLASMA DISPLAY PANNEL FOR MULTI-SCREEN AND PRODUCING FORMING METHOD THEREOF}

1 is a schematic diagram of a plasma display panel for a multi-screen for explaining a conventional electromagnetic shielding method.

Figure 2a is a side view of a plasma display panel for a multi-screen according to the present invention.

Figure 2b is a perspective view of a multi-screen plasma display panel according to an embodiment of the present invention.

2C is a perspective view of a multi-screen plasma display panel according to another embodiment of the present invention.

The present invention relates to a multi-screen plasma display panel, and more particularly, in a multi-screen plasma display panel through a side junction, a conductive mesh film filter is directly attached to a front substrate, but the conductive mesh in the conductive mesh film filter The sealing material for hermetically sealing the front substrate and the rear substrate is exposed within the range protruding to the outside of the plasma display panel, and the conductive material such as conductive epoxy is coated on the sealing material and connected to the exposed mesh at the same time. The present invention relates to a plasma display panel capable of minimizing a seam due to the formation of a multi-plasma display panel.

Plasma Display Panels (PDPs) have a myriad of compact fluorescent lamps that emit stronger electromagnetic waves than conventional cold-cathode-ray tubes (CRTs) or liquid crystal displays (LCDs). There is a problem. Therefore, in order to commercialize the plasma display panel, a stronger electromagnetic shielding function is required as compared with the conventional electromagnetic shielding method.

1 is a side view of a plasma display panel set for explaining a conventional electromagnetic shielding method. Referring to FIG. 1, the conventional plasma display panel set 10 includes a plasma display panel 11, a plasma display panel driver 12, and a glass filter 14 for shielding electromagnetic waves.

The plasma display panel 11 displays a predetermined image on the screen by neon light generated from a gas such as Ne + Ar or Ne + Xe inserted into a space between the hermetically sealed front substrate and the rear substrate, and displays a plasma display panel driver ( 12 applies a voltage corresponding to a shape to be expressed on the electrodes of the anode and cathode of the plasma display panel 12 so that the neon light is emitted.

The glass filter 14 is a tempered glass with a conductive mesh film filter having an electromagnetic shielding function, and a conductive mesh is provided at the edge of the glass filter 14 to provide a ground for shielding electromagnetic waves generated from the plasma display panel 12. Some areas are exposed.

The exposed ground mesh 16 is grounded through the ground structure 18 provided in the free space inside the plasma display panel frame, thereby shielding the electromagnetic waves emitted from the plasma display panel 12.

However, it has become difficult to use such a conventional electromagnetic shielding method in a multi-screen that combines a plurality of plasma display panels 11 adjacent to the same plane to form a large screen. That is, in the conventional method using a single plasma display panel, the exposed mesh 16 may be grounded through a free space outside the plasma display panel 11, but when a plurality of plasma display panels are combined to form a large screen, Since each plasma display panel 11 should be coupled as closely as possible to eliminate seams between panels, it is difficult to provide a predetermined space for grounding therebetween.

It is an object of the present invention to provide an electromagnetic wave shielding device capable of minimizing seams between panels when a large screen is formed by combining a plurality of plasma display panels.

According to the present invention for solving the above problems, as the front substrate and the rear substrate are hermetically sealed with an encapsulant and then compressed, a portion of the encapsulant is exposed to the outside of the front substrate and the rear substrate and is conductive to the transparent film. In the multi-screen plasma display panel that the epoxy-compressed conductive mesh film filter is attached to the front of the front substrate to absorb electromagnetic waves,
The transparent film filter is attached so that the conductive mesh is exposed to less than the width of the encapsulant exposed to the outside,
On the encapsulant, grounding means is applied as a means for providing a ground of the conductive mesh to shield the electromagnetic wave, and bonded to the exposed mesh.

In this case, preferably, the conductive mesh film filter has an electrode formed on the exposed conductive mesh, and the grounding means is bonded to the electrode. In this case, preferably, the grounding means is entirely applied to the outer surface of the encapsulant. And preferably the grounding means is partially applied to the outer surface of the encapsulant.

And preferably, the grounding means is any one of a conductive epoxy, a conductive paste, and a conductive tape.

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

2A is a cross-sectional view of a plasma display panel for a multi-screen according to the present invention. Referring to FIG. 2A, in the plasma display panel according to the present invention, the front substrate 124 and the rear substrate 126 are hermetically sealed by the encapsulant 132, and for shielding electromagnetic waves directly on the front surface of the front substrate 124. The conductive mesh film filter 120 is attached. In addition, the grounding means 136 is applied outside the encapsulant 132 so that the conductive mesh film filter 120 may be connected to a predetermined ground line (not shown).                     

At this time, the conductive mesh film filter 120 to be attached is a structure in which the conductive mesh 122 is compressed between the front transparent film 121 and the rear transparent film 123 of the filter, the front substrate 124 The rear transparent film 123, which is a part directly attached to the rear surface, is the same as the size of the rear substrate 126, and the front transparent film 121 and the conductive mesh 122 are largely cut compared to the rear transparent film 123 and are conductive. A portion of the mesh 122 is exposed to the outside.

At this time, the conductive material so that the sealing material 132 for hermetically sealing the front substrate 124 and the rear substrate 126 is exposed below the range of the width protruding toward the side of the front substrate 124 and the rear substrate 126, The mesh 122 is cut.

Meanwhile, in order to easily ground the electromagnetic wave absorbed on the conductive mesh 122 of the conductive mesh film filter 120, an electrode (not shown) is formed on the exposed conductive mesh 134.

In the manner in which the conductive mesh film filter 120 and the conductive mesh film filter 120 according to the present invention are attached to the front substrate 124, a portion of the conductive mesh 122 is exposed to the outside within the above-described range. If the transparent film 123 is attached to the rear as in this embodiment, the method of using a mesh film filter 120 produced separately, the front transparent film 121 and the conductive mesh 134 without the rear transparent film 123. Of course, various modifications may be made to directly attach the mesh to the front substrate 124.

As described above, when the conductive mesh film filter 120 is attached to the front surface of the front substrate 124, the conductive mesh film filter 120 is then contacted with an electrode formed on the exposed conductive mesh 134, and the outer surface of the encapsulant 132 is attached. The grounding means 136 is formed in the form of coating. At this time, the grounding means 136 has a conductivity such as a conductive epoxy, a conductive paste, or a conductive tape, and is made of a material that can be applied thinly. At this time, the grounding means is preferably applied to about 1mm, it is formed so as not to exceed 1.5mm as possible. This is because the total thickness of the seal line and the insulating coating layer of the plasma display is 1 mm to 1.5 mm, so that the fins must be designed within the corresponding range (1 mm to 1.5 mm) to maintain the minimum fins.

Plasma display panel for a multi-screen configuration as described above is a conductive mesh 122 inside the conductive mesh film filter 120 attached to the front substrate 124, the airtight sealing of the front substrate 124 and the rear substrate 126. The encapsulant 132, which must be essentially added in order to expose the front substrate 124 and the rear substrate 126, is exposed in the range of the width or less protruding outside, and then contact the exposed conductive mesh 134, the encapsulant ( The conductive mesh film filter 120 is grounded through the grounding means 136 thinly applied to the 132 to shield the electromagnetic wave absorbed onto the conductive mesh film filter 120. This requires little extra space for shielding electromagnetic waves.

On the other hand, the grounding means 136 is bonded to the exposed conductive mesh 134, the shape of applying the encapsulant 132, if the form can be connected to the electromagnetic wave absorbed on the conductive mesh 134 and the ground line, Various modifications can be made.

FIG. 2B is a side view of the plasma display panel for explaining the form of the grounding means 136 according to the first embodiment of the present invention, and shows a form in which the grounding means 136 is applied over the entire side.

2C is a side view of the plasma display panel for explaining the form of the grounding means 136 according to the second embodiment of the present invention, in which the grounding means 136-1 to 136-n are partially applied to the side surface. Illustrated. Since the electrodes are formed on the exposed conductive mesh 134, even if the grounding means 136-1 to 136-n are partially formed as shown in FIG. 2C, the respective grounding means 136-1 to 136-n are formed. Is connected to the exposed mesh.

When the grounding means 136 is configured as shown in FIG. 2C, there may be a slight difference in shielding effect compared to the case shown in FIG. 2B, but the process is simplified, and the material cost for forming the grounding means may be reduced. There is an advantage.

By the method as described above, the electromagnetic waves emitted from the plasma display panel can be shielded using a minimum space.

Therefore, according to the present invention, a sealing material is provided for hermetic sealing of the front substrate and the rear substrate, thereby exposing the ground wire for shielding electromagnetic waves within the space on the side of the plasma display panel, which is inevitably generated, and the exposed conductive seal material. By applying a conductive epoxy to the ground wire for shielding the electromagnetic wave, a separate space for the electromagnetic shielding is hardly needed. Therefore, as the seam between panels widens during the conventional side joining, separation of the screen can be prevented from occurring.

In addition, even in a PDP set consisting of a single PDP module, by reducing unnecessary volume, it can meet the needs of consumers.

It will be apparent to those skilled in the art that various modifications, additions, and substitutions are possible, and that various modifications, additions and substitutions are possible, within the spirit and scope of the appended claims. As shown in Fig.

Claims (5)

As the front substrate and the rear substrate are hermetically sealed with an encapsulant and then compressed, a portion of the encapsulant is exposed to the outside of the front substrate and the back substrate, and a conductive mesh film filter in which a conductive epoxy is compressed on the transparent film is formed on the front substrate. In the plasma display panel for multi-screen attached to the front side to absorb electromagnetic waves, The transparent film filter is attached so that the conductive mesh is exposed to less than the width of the encapsulant exposed to the outside, The means for shielding the electromagnetic wave by providing a ground of the conductive mesh on the encapsulant, the grounding means for multi-screen plasma display panel, characterized in that the coating is applied in the form of bonding to the exposed mesh. The method of claim 1, An electrode is formed on the exposed conductive mesh, And the grounding means is bonded to the electrode. 3. The method of claim 2, The grounding means is a plasma display panel for a multi-screen, characterized in that the overall coating on the outer surface of the encapsulant. 3. The method of claim 2, And said grounding means is partially applied to the outer surface of said encapsulant. The method of claim 1, The grounding means is a plasma display panel for a multi-screen, characterized in that any one of a conductive epoxy, a conductive paste, and a conductive tape.

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