KR20050032848A - Plasma display apparatus - Google Patents

Abstract

Disclosed is a plasma display device that can reduce costs while facilitating a process.

In the plasma display device of the present invention, a black frame extends to one side of the front cabinet. In this case, when the filter is a glass-type filter, the black frame is fastened to the glass filter using one of adhesive or screw-assembled, and when the filter is a film-type filter, the black frame is one of adhesive or screw-assembled. It can be fastened to the panel using.

Description

Plasma display apparatus

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a plasma display device, and more particularly, to a plasma display device that can reduce manufacturing costs while facilitating a process.

In general, a plasma display panel (PDP) is a device that displays a predetermined image by exciting phosphors by vacuum ultraviolet rays caused by gas discharge. It is attracting attention as a device. In the PDP, an upper substrate having a plurality of sustain electrode pairs and a lower substrate having an address electrode and a partition wall are bonded to each other to form a single panel.

The PDP device has four edges fixed to a chassis base on which a circuit board of the PDP is mounted, and the chassis base is integrally assembled with the front cabinet and the back cover to complete the product.

The PDP device is provided with a filter for shielding electromagnetic waves and preventing reflection of external light on the upper substrate. Such a filter may include a glass filter in which films having various functions are attached to the tempered glass and a film filter in which films having various functions are attached without the tempered glass.

1 is a cross-sectional view schematically showing a plasma display device having a conventional glass filter.

Referring to FIG. 1, a plasma display device having a glass filter according to the related art includes a panel 101 formed by bonding an upper substrate 102 and a lower substrate 103 to a front surface spaced apart from the panel 101 by a predetermined distance. A glass filter 104 installed at the rear surface, a heat sink 105 installed at the rear of the panel 101, and a chassis base 106 for fixing the panel 101 and the heat sink 105 and mounting a printed circuit board. ), A back cover 107 provided to surround the panel 101, and a front cabinet 108 for connecting the glass filter 104 and the back cover 107.

The chassis base 106 is produced by diecasting aluminum, for example.

The heat sink 105 dissipates heat generated from the panel 101 and the printed circuit board.

The back cover 107 protects the panel 101 from external shocks and blocks electromagnetic waves emitted to the rear surface (hereinafter referred to as "EMI").

The front cabinet 108 fixes the filter support 110 for holding the glass filter 104 and the filter support 110, and the glass filter 104 and the back cover 107. And a support member 109 for supporting the connection. The filter support 110 electrically connects the glass filter 104 to the back cover 107. The filter support 110 grounds the glass filter 104 to the back cover 107 and prevents EMI from being emitted to the side. The support member 109 supports the filter support 110, the glass filter 104, the back cover 107, and the like.

The glass filter 104 is generally placed between the end of the support member 109 and one side of the filter support 110 to be fixed.

As shown in FIG. 2, the glass filter 104 includes an antireflection coating 111, an optical film 112, a glass 113, an EMI shielding film 114, and near infrared (NIR). And a shielding film 115. Here, in practice, an adhesive layer is formed between the films 111, 112, 114, and 115 of the glass filter 104 to adhere the films. In addition, the glass filter 104 further includes a black frame 116 formed at an edge thereof.

The antireflective film 111 prevents light incident from the outside from being reflected back to the outside to improve the contrast of the PDP. Such an antireflection film 111 is formed on the surface of the glass filter 104. Meanwhile, the antireflective film 111 may be further formed on the rear surface of the glass filter 104. The optical characteristic film 112 lowers the luminance of red (R) and green (G) among the light incident from the panel 101 and improves the optical characteristic of the PDP by increasing the luminance of blue (B).

The glass 113 prevents the glass filter 104 from being damaged from an external impact. In other words, the glass 113 supports the glass filter 104 to prevent the glass filter 104 from being damaged by an external impact.

The EMI shielding film 114 shields the EMI to prevent the EMI incident from the panel 101 from being emitted to the outside.

The NIR shielding film 115 shields the NIR emitted from the panel 101 to prevent the NIR above the reference from being emitted to the outside so that signals transmitted using the IR, such as a remote controller, can be normally transmitted.

Meanwhile, the EMI shielding film 114 and the NIR shielding film 115 may be formed of one layer.

The black frame 116 defines an effective display area A / A of the panel 104 and at the same time obscures unnecessary portions of the edge portion of the PDP module.

The glass filter 104 is electrically connected to the back cover 107 through the filter support 110. In detail, the filter support 110 is connected to the rear surface of the glass filter 104 at one end of the glass filter 104. In this case, the filter support 110 is electrically connected to at least one of the EMI shielding film 114 and the NIR shielding film 115. That is, the filter support 110 connects the glass filter 104 to the back cover 107 to shield EMI and / or NIR.

3 is a schematic cross-sectional view of a plasma display device having a conventional film filter.

In FIG. 3, the panel 121, the heat sink 125, the chassis base 126, the back cover 127, and the front cabinet 128 formed of the upper substrate 122 and the lower substrate 123 are the same as those of FIG. 1. The above description is omitted.

However, the film filter 124 of FIG. 3 is attached to the upper substrate 122 instead of being installed on the front surface spaced apart from the upper substrate 122 of the panel 121 by a predetermined distance. In addition, the upper surface of one side of the film filter 124 attached on the upper substrate 122 is supported by the filter support 130 and the support member 129. In this case, the filter support 130 is to electrically connect the film filter 124.

As shown in FIG. 4, the film filter 124 includes an antireflection film 131, an optical characteristic film 132, an EMI shielding film 133, and a near infrared (NIR) shielding film 134. It is provided. Here, in practice, an adhesive layer is formed between the films 131 to 134 of the film filter 124 to adhere the films. Here, the film filter 124 may be manufactured in a flexible film form by removing the reinforcement film for supporting the filter.

In this case, the functions of the films 131 to 134 are the same as those of FIG. 2, and thus, further description thereof will be omitted.

On the other hand, a black frame is not currently formed in the film filter 124. FIG.

As described above, in the conventional glass filter, a black frame may be positioned at an edge to define an effective display area A / A of the panel 121 and to block unnecessary portions of the edge of the PDP module.

However, in the case of the conventional glass filter, forming a black frame is a factor that increases the price in the process. For example, in order to form a black frame, a process of printing and firing ceramics is generally involved, thereby increasing the price. In addition, there is a method of forming a black frame by blackening a mesh electrode that blocks electromagnetic waves, but this also increases the price due to the complexity of the process.

On the other hand, in the case of the conventional film filter, since the filter is made in the form of a film, there are many difficulties in the process and a black frame has not yet been formed.

Accordingly, an object of the present invention is to provide a plasma display apparatus which can reduce manufacturing costs while facilitating a process by forming a black frame in a front cabinet.

According to a preferred embodiment of the present invention for achieving the above object, the plasma display device, the panel is formed by the upper substrate and the lower substrate is bonded; A filter installed at the front of the panel; A chassis base for fixing the panel and mounting a printed circuit board; A back cover provided to surround the panel; And a front cabinet connecting the filter and the back cover, wherein the filter includes a film filter attached to the panel and a glass filter installed at a predetermined distance from the panel, and one side of the front cabinet. As a result, the black frame is extended.

In this case, when the filter is a glass-type filter, the black frame is fastened to the glass filter using one of adhesive or screw-assembled, and when the filter is a film-type filter, the black frame is one of adhesive or screw-assembled. It can be fastened to the panel using.

Hereinafter, a plasma display device of the present invention will be described in detail with reference to the accompanying drawings.

5 is a cross-sectional view schematically illustrating a plasma display device having a glass filter according to an exemplary embodiment of the present invention.

Referring to FIG. 5, a plasma display device having a glass filter according to an embodiment of the present invention includes a panel 3 formed by joining an upper substrate 1 and a lower substrate 2 to a predetermined distance from the panel 3. Glass base (4) installed on the front surface, heat sink (5) installed on the back of the panel (3), and the chassis base for mounting the printed circuit board while fixing the panel (3) and the heat sink (5) (6), a back cover (7) provided to surround the panel (3), and a front cabinet (8) for connecting the glass filter (4) and the back cover (7).

The front cabinet 8 fixes the filter support 10 for fixing the glass filter 4 and the filter support 10, while the glass filter 4 and the back cover 7 are fixed. It is provided with a support member (9) for supporting the connection. The filter support 10 electrically connects the glass filter 4 to the back cover 7.

In this case, the glass filter 4 is generally placed between the end of the support member 109 and one side of the filter support 10 to be fixed. In this case, the glass filter 4 is in contact with the filter support 10 is electrically connected.

One side of the support member 9 of the front cabinet 8 is formed by extending the black frame 11. Preferably, the black frame 11 may be integrally formed with the support member 9. The black frame 11 preferably has a thickness in the range of 01 mm to 10 mm. The black frame 11 may be formed in a rectangular shape extending to a certain degree. In addition, as shown in FIGS. 7A and 7B, the black frame 11 may be formed as a triangular frame 13 or a frame 14 having a central convex shape. As such, since the shape of the black frame 11 may be variously changed, the design of the plasma display device may be freely modified, thereby enabling the implementation of an elegant design.

The black frame 11 integrally formed with the support member 9 is fastened to the glass filter 4. That is, the black frame 11 may be fastened by adhesive or screw assembly. For example, when the black frame 11 is fastened to the support member 9 by using an adhesive type, an adhesive material is attached to the rear surface of the black frame 11, and the support member is attached by the adhesive material. (9) will be attached.

The black frame 11 may be made of a plastic material. In addition, the black frame 11 may be made of an organic synthetic material including urethane, acrylic, EVA, or vinyl. In addition, the black frame 11 may be made of a metallic material including a metal alloy or plating. In addition, the black frame 11 may be made of a silicon rubber material or a thick resin material.

6 is another cross-sectional view schematically illustrating a plasma display device having a glass filter according to an exemplary embodiment of the present invention.

As shown in FIG. 6, the black frame 12 may be formed on the support member 9 by using an adhesive or screw assembly type. That is, the black frame 12 overlaps the rear surface of the support member 9 to a certain degree, and the black frame 12 and the support member 9 by using the superimposed black frame 12 by adhesive or screw assembly or the like. It can be tightened. In addition, an adhesive material is attached to an upper surface of the black frame 12, and may be coupled to the support member 9 using such an adhesive material.

As such, the black frame 12 formed on the support member 9 may be fastened to the glass filter 4 positioned below the black frame 12. In this case, the black frame 12 is fastened to the glass filter 4 by adhesive or screw assembly.

The structure in which the black frame is formed on the support member of the front cabinet in the plasma display panel having the glass filter has been described.

Meanwhile, the black frame formed on the support member of the front cabinet can be applied to a plasma display device having a film filter.

8 is a cross-sectional view schematically illustrating a plasma display device having a film filter according to another exemplary embodiment of the present invention.

Referring to FIG. 8, the plasma display device including the film filter of the present invention includes a panel 23 formed by joining an upper substrate 21 and a lower substrate 22, and an upper substrate of the panel 23. 21, a chassis for mounting a printed circuit board while fixing the film filter 24 attached on the panel 21, the heat sink 25 provided at the rear of the panel 23, and the panel 23 and the heat sink 25 at the same time. A base 26, a back cover 27 provided to surround the panel 23, and a front cabinet 28 for connecting the film filter 24 and the back cover 27 are provided.

The front cabinet 28 fixes the filter support part 30 and the filter support part 30 to fix and support the film filter 24, while the film filter 24 and the back cover 27 are fixed. It is provided with a support member 29 for supporting the connection. The filter support part 30 electrically connects the film filter 24 to the back cover 27.

In this case, the film filter 24 is generally fixedly supported by the end of the support member 109, and is in contact with one side of the filter support 110 to be electrically connected.

One side of the support member 29 of the front cabinet 28 is formed by extending the black frame 31. Preferably, the black frame 31 may be integrally formed with the support member 29. The black frame 31 preferably has a thickness in the range of 01 mm to 10 mm. The black frame 31 may be formed in a rectangular shape extending to a certain degree. 7A and 7B, the black frame 31 may be formed of a triangular frame 13 or a frame 14 having a central convex shape. As such, since the shape of the black frame 31 may be variously changed, the design of the plasma display device may be freely modified, thereby enabling the implementation of a high-quality design.

The black frame 31 integrally formed with the support member 29 is fastened to the panel 23 to which the film filter 24 is attached. That is, the black frame 31 may be fastened by adhesive or screw assembly. For example, when the black frame 31 is fastened to the panel 23 by using an adhesive, an adhesive material is attached to the rear surface of the black frame 31, and the panel 23 is attached by the adhesive material. ), To be precisely attached to the film filter 24.

The black frame 31 may be made of a plastic material. In addition, the black frame 31 may be made of an organic synthetic material including urethane, acrylic, EVA, or vinyl. In addition, the black frame 31 may be made of a metallic material including a metal alloy or plating. In addition, the black frame 31 may be made of a silicon rubber material or a thick resin material.

9 is another schematic cross-sectional view of a plasma display device having a film filter according to another exemplary embodiment of the present invention.

As shown in FIG. 9, the black frame 32 overlaps with the rear surface of the support member 29 of the front cabinet 28 to a certain degree, and the superimposed black frame 32 is bonded or screw-assembled to the black frame. It is possible to fasten between the 32 and the support member 29.

As such, the black frame 32 formed on the support member 29 may be fastened to the panel 23 to which the film filter 24 is disposed. At this time, the black frame 32 is fastened to the panel 23 by adhesive or screw assembly.

Accordingly, the present invention can simply form a black frame in the front cabinet to define the effective display area (A / A) of the panel and to block unnecessary portions of the edge of the PDP module.

As described above, according to the plasma display device of the present invention, by forming a black frame that is difficult to form in the filter in the front cabinet and fastening the black frame to the filter, the manufacturing process can be facilitated and the cost can be reduced.

1 is a cross-sectional view schematically showing a plasma display device having a conventional glass filter.

2 is a view schematically showing the structure of the glass filter of FIG.

3 is a cross-sectional view schematically showing a plasma display device having a conventional film filter.

4 is a view schematically showing the structure of a film filter of FIG.

5 is a cross-sectional view schematically showing a plasma display device having a glass filter according to an embodiment of the present invention.

6 is another schematic cross-sectional view of a plasma display device having a glass filter according to an exemplary embodiment of the present invention.

7A and 7B illustrate the shape of a black frame according to an embodiment of the present invention.

8 is a cross-sectional view schematically illustrating a plasma display device having a film filter according to another exemplary embodiment of the present invention.

9 is another schematic cross-sectional view of a plasma display device having a film filter according to another exemplary embodiment of the present invention.

<Name of the code for the main part of the drawing>

3, 23: panel 4, 24: filter

6, 26: chassis base 7, 27: back cover

8, 28: front cabinet 11, 12, 31, 32: black frame

Claims (11)

A panel formed by bonding the upper substrate and the lower substrate; A filter installed at the front of the panel; A chassis base for fixing the panel and mounting a printed circuit board; A back cover provided to surround the panel; And Front cabinet connecting the filter and the back cover Including, The filter includes a film-type filter attached on the panel and a glass-type filter installed at a predetermined distance from the panel, And a black frame extending to one side of the front cabinet. The heat dissipation plate of claim 1, wherein the heat dissipation plate is installed at a rear surface of the panel to release heat generated from the panel and the printed circuit board. Plasma display device further comprising. The method of claim 1, wherein the front cabinet, A filter support for fixedly holding the filter; And Support member for fixing the filter support, while connecting and supporting the filter and the back cover Plasma display device comprising a. The plasma display apparatus of claim 1, wherein the black frame is integrally formed with the front cabinet. The plasma display apparatus of claim 1, wherein the black frame is fastened to one side of the front cabinet by using one of an adhesive type and a screw assembly type. The method of claim 5, wherein when the black frame is fastened to the front cabinet by adhesive, an adhesive material is attached to an upper surface of the black frame, and overlapped with the rear surface of the front cabinet using the attached adhesive material. Plasma display device, characterized in that. The plasma display apparatus of claim 1, wherein when the filter is a glass filter, the black frame is fastened to the glass filter using one of an adhesive type and a screw assembly type. The plasma display apparatus of claim 1, wherein when the filter is a film type filter, the black frame is fastened to the panel using one of an adhesive type and a screw assembly type. The plasma display apparatus of claim 1, wherein the black frame has a thickness in a range of 0.1 mm to 10 mm. The plasma display apparatus of claim 1, wherein the black frame is made of one of a plastic material, an organic synthetic material, a metallic material, a silicon rubber material, and a thick resin material. The plasma display apparatus of claim 1, wherein the black frame is formed of one of a triangular shape, a square shape, or a convex shape of the center portion.