KR100637531B1 - A plasma display apparatus - Google Patents

Abstract

The plasma display device of the present invention integrates a portion for reinforcing the stiffness of the chassis base and a portion for disassembling and combining the PDP and the chassis base, thereby facilitating the disassembly and coupling between the PDP and the chassis base while ensuring the rigidity of the chassis base. A plasma display panel, a thermally conductive sheet attached to one side of the plasma display panel, a chassis base attached to the thermally conductive sheet side plasma display panel, a reinforcing member mounted as a fastening member at a tip of the chassis base, and the reinforcing member and the And an attachment member interposed between opposing plasma display panels and positioned outside the thermal conductive sheet.

Driver IC, TCP, Chassis Base, Reinforcing Member, Fastening Member, Attachment Member

Description

Plasma display device {A PLASMA DISPLAY APPARATUS}

1 is a schematic exploded perspective view of a plasma display device according to an embodiment of the present invention.

FIG. 2 is a cross-sectional view of the first exemplary embodiment in which the plasma display device of FIG. 1 is assembled and cut along the line A-A.

FIG. 3 is a cross-sectional view of the second exemplary embodiment in which the plasma display device of FIG. 1 is assembled and cut along the line A-A.

FIG. 4 is a cross-sectional view of the third exemplary embodiment in which the plasma display device of FIG. 1 is assembled and cut along the line A-A.

FIG. 5 is a cross-sectional view of the fourth exemplary embodiment in which the plasma display device of FIG. 1 is assembled and cut along the line A-A.

FIG. 6 is a cross-sectional view of the fifth exemplary embodiment in which the plasma display device of FIG. 1 is assembled and cut along the line A-A.

FIG. 7 is a cross-sectional view of the sixth exemplary embodiment in which the plasma display device of FIG. 1 is assembled and cut along the line A-A.

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 secures the rigidity of the chassis base and facilitates the decomposition coupling of the chassis base and the plasma display panel.

The plasma display device generates a plasma by gas discharge and displays the image using the plasma (Plasma Display Panel, hereinafter referred to as 'PDP'), a chassis base supporting the PDP, and the chassis base PDP. A plurality of driving circuit boards mounted on the opposite side and connected to a display electrode or an address electrode located inside the PDP through a flexible printed circuit (FPC) and a connector or a tape carrier package (TCP) are provided. do.

Since PDP seals two glass substrates in a surface facing structure and forms a discharge space therein, the PDP is weak in mechanical rigidity against impact. In order to secure the mechanical rigidity of this PDP, the chassis base has a banding section bent at its end in a "L" shape and has a plurality of reinforcing members properly disposed on its rear surface.

During the manufacturing process of the plasma display device, the chassis base is combined with the PDP. In order to discard one side of the chassis base or the PDP and take the other side for recycling, the PDP and the chassis base are mutually connected. It needs to be disassembled.

To disassemble the PDP and the chassis base, the chassis base is provided with a bracket and the bracket is provided with double-sided tape. In other words, the bracket is screwed to the chassis base with screws, and the double-sided tape attaches the bracket to the PDP. When the screw is loosened in this structure, the bracket is separated from the chassis base and remains attached to the PDP by double-sided tape, so that the chassis base and the PDP are separated from each other.

The plasma display device is formed by bending an outer portion of the chassis base to form a reinforcement part to secure the rigidity of the chassis base, and to form an exploded coupling structure of the chassis base and the PDP through a separate bracket and screws. There is a problem that complicates the manufacturing process and its shape.

Accordingly, the present invention has been made to solve the above problems, the object of which is to integrate the part to reinforce the stiffness of the chassis base and the part to disassemble and combine the PDP and the chassis base, while ensuring the rigidity of the chassis base The present invention provides a plasma display device that facilitates the decomposition coupling of a PDP and a chassis base.

In order to achieve the above object, the plasma display device according to the present invention, the plasma display panel, the thermal conductive sheet attached to one side of the plasma display panel, the chassis base attached to the heat conductive sheet side plasma display panel, the chassis base And a reinforcing member mounted to the front end as a fastening member, and an attachment member interposed between the reinforcing member and the plasma display panel facing the reinforcing member and positioned outside the heat conductive sheet.

The chassis base is formed on a flat plate that is not bent, and secures rigidity by a reinforcing member assembled at its tip, thereby facilitating its manufacture.

The reinforcing member includes a coupling portion coupled to the fastening member at the front end of the chassis base, and a reinforcement portion bent to the opposite side of the plasma display panel at the coupling portion, thereby securing the stiffness of the chassis base and closely contacting the reinforcement portion. By dissipating the driver IC (Integrated Circuit), the heat dissipation for the driver IC of TCP is realized.

The engaging portion is formed in a cross-section " U " shape and is inserted into the front end of the chassis base to support the front end of the chassis base on both sides, and is fastened by the fastening member at the front end of the chassis base. In this case, the attachment member is formed of a double-sided tape and is interposed between the coupling portion of the reinforcement member and the plasma display panel facing the reinforcement member to attach the reinforcement member and the plasma display panel to each other.

In addition, the coupling portion is disposed overlapping with the front end of the chassis base on the plasma display panel side, and is fastened by the fastening member at the front end of the chassis base. At this time, the attachment member is interposed between the coupling portion of the reinforcement member and the plasma display panel facing the reinforcement member to attach the reinforcement member and the plasma display panel to each other.

The reinforcement part may include a parallel part formed in a state parallel to the plasma display panel, and may further include a finishing part bent toward the chassis base in the parallel part.

In addition, the reinforcing portion may include an inclined portion formed to be inclined with respect to the planar direction of the plasma display panel, and the inclined portion may shorten the length of the FPC connected to the electrode of the plasma display panel.

Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings so that those skilled in the art may easily implement the present invention. As those skilled in the art would realize, the described embodiments may be modified in various different ways, all without departing from the spirit or scope of the present invention.

1 is a schematic exploded perspective view of a plasma display device according to an embodiment of the present invention, Figure 2 is a cross-sectional view of the first embodiment showing the plasma display device of Figure 1 assembled and cut along the line A-A.

The plasma display device is provided with a PDP 11 for displaying an image by using gas discharge and a rear surface of the PDP 11 so that heat generated from the PDP 11 due to gas discharge is directed in the plane direction of the PDP 11. And a chassis base 15 attached to the PDP 11 on the heat conductive sheet 13 side.

Since the present invention relates to the coupling relationship between the PDP 11 and other components described above, a detailed description of the configuration of the PDP 11 is omitted here. The PDP 11 can be configured in various ways and can be driven in various ways, and includes such PDPs.

As described above, the thermal conductive sheet 13 quickly conducts and dissipates heat generated in the PDP 11 due to the driving of the PDP 11 in the plane direction of the PDP 11, thereby achieving a heat dissipation balance of the PDP 11. So as to be attached to the rear surface of the PDP 11. In addition, the thermal conductive sheet 13 may be formed of various materials, that is, an acrylic thermal conductive sheet, a graphite (graphite) thermal conductive sheet, a metallic thermal conductive sheet, or a carbon nanotube thermal conductive material.

The chassis base 15 is attached to the rear side of the PDP 11 via the thermal conductive sheet 13, and typically supports the PDP 11 formed of glass material to reinforce the mechanical rigidity of the PDP 11. In addition, heat generated by the driving of the PDP 11 and conducted through the heat conductive sheet 13 is radiated, thereby enabling stable driving of the PDP 11.

In addition, the driving circuit boards 16 for driving the PDP 11 are provided on the opposite side of the chassis base 15 to the PDP 11. The chassis base 15 is preferably formed of a metal material such as aluminum to ground the circuit formed on the drive circuit board 16 and to ground the EMI (electromagnetic interference) generated from the drive circuit board 16.

This chassis base 15 requires conditions that are in conflict with each other, such as having sufficient rigidity to support the PDP 11 and being made lightweight to reduce the weight of the entire apparatus. In order to satisfy this condition, the chassis base 15 is preferably formed on a flat plate. This flat shape facilitates the fabrication of the chassis base 15.

In addition to the PDP 11, the thermal conductive sheet 13, and the chassis base 15, the plasma display device of the present invention includes a reinforcing member 17 and a reinforcing member 17 for reinforcing the mechanical rigidity of the chassis base 15. It further includes an attachment member 19 for attaching the reinforcement member 17 to the PDP 11 in a structure capable of disassembling the reinforcement member 17 with the chassis base 15.

The reinforcing member 17 is formed on a flat plate to reinforce the mechanical rigidity of the chassis base 15, which may be somewhat lacking in mechanical rigidity, and may disassemble and bond the chassis base 15 and the PDP 11 to each other. Form. In other words, the reinforcing member 17 is formed as a single part to integrally form a portion for reinforcing the rigidity of the chassis base 15 and a portion for disassembling and combining the PDP 11 and the chassis base 15.

To this end, the reinforcing member 17 may be mounted to the front end of the chassis base 15 according to the shape of the reinforcement member, may be mounted as a fastening member 22 at the front end of the chassis base 15, the interference fit Mounting by means of the fastening member 22 is more advantageous in fastening stability. The fastening member 22 may be formed of a set screw as an example. That is, depending on whether the fastening member 22 is fastened or released, the PDP 11 and the chassis base 15 are integrally disassembled or disassembled. In addition, the reinforcing member 17 may be provided at at least one edge of the chassis base 15 formed in a substantially rectangular shape, and FIG. 1 illustrates a reinforcing member 17 formed at upper and lower edges of the chassis base 15. It is more preferable to form (not shown) at both the upper and lower sides and the left and right edges of the chassis base 15 to improve the rigidity of the chassis base 15.

The attachment member 19 is interposed between the reinforcement member 17 and the PDP 11 opposite thereto to attach the reinforcement member 17 and the PDP 11 to each other. The attachment member 19 is interposed between the reinforcing member 17 and the PDP 11 and is disposed outside the thermal conductive sheet 13. That is, it is more preferable that the attachment member 19 does not overlap with the thermal conductive sheet 13, since the attachment of the thermal conductive sheet 13 and the PDP 11 is closely performed. The attachment member 19 includes a double-sided tape for adhesives commonly used.

The reinforcing member 17 is maintained by being attached to the chassis base 15 or separated from the chassis base 15 by the attachment member 19 and the fastening member 22 as necessary. Can form a state. That is, when the reinforcing member 17 and the chassis base 15 are fastened by the fastening member 22 while the reinforcing member 17 and the PDP 11 are attached by the attachment member 19, the PDP ( 11) and the chassis base 15 are integrally formed to form a plasma display device, and when the fastening member 22 is released, the reinforcing member 17 is separated from the chassis base 5 and attached to the PDP 11. The plasma display device is attached to the chassis base 15 side (a) and the PDP 11 side (b).

Such a reinforcing member 17 may be formed in various shapes, the reinforcing portion is bent to the opposite side of the PDP 11 in the coupling portion 17a and the coupling portion 17a coupled to the front end of the chassis base 15 17b is provided. Coupling portion 17a is a portion that directly couples one side of the reinforcing member 17 to the tip of the chassis base 15, the reinforcing portion 17b is a driver IC 23 of the TCP 21 in close contact with one side It acts as a heat dissipation part. The reinforcing member 17 forms a rigid reinforcing structure of the chassis base 15 through the coupling part 17a and the reinforcing part 17b as described above, and is formed through the coupling part 17a. In addition to the decomposition coupling structure of the chassis base 15, the heat dissipation structure of the driver IC 23 is further formed through the reinforcing portion 17b.

Referring to the reinforcing member 17 acting in more detail, the coupling portion 17a may be formed in a "U" shape as shown in FIG. The engaging portion 17a on the "U" shape has a stable structure at the tip of the chassis base 15, that is, a double-sided support structure. The coupling portion 17a is fastened to the front end of the chassis base 15 by the fastening member 22. A fastening hole 22a is provided at the front end of the coupling part 17a and the chassis base 15 so that the fastening member 22 is coupled thereto. This fastening hole 22a is preferably formed of a screw hole. At this time, the attachment member 19 is interposed between the coupling portion 17a on the "U" shape and the PDP 11 opposite thereto.

Also, as shown in FIGS. 2 and 3, the reinforcement part 17b may include a parallel part 17c that maintains a parallel state with the PDP 11, and the chassis in the parallel part 17c may be used. It may further include a finish portion (17d) is bent at a right angle toward the base 15 to form a finish thereof in the state coupled to the chassis base (15). This parallel part 17c enables stable close contact of the driver IC 23 of the TCP 21, and the finishing part 17d connects the FPC which connects the TCP 21 and the electrode 11a of the PDP 11 to each other. The arrangement shape of the 25 is guided to maintain a stable state that does not flow between the reinforcing member 17 and the PDP 11.

The driver IC 23 in close contact with the reinforcing portion 17b of the reinforcing member 17 is pressed toward the reinforcing portion 17b by a cover plate 27 provided on the outside of the reinforcing member 17. At this time, the thermally conductive material 29 is interposed on both sides of the driver IC 23 to quickly conduct heat generated by the driver IC 23 to the reinforcing member 17 or the cover plate 27 to enable heat dissipation. The thermally conductive material 29 may be provided as a thermal grease on the reinforcing member 17 side, and may be provided as a thermal conductor on the cover plate 27 side.

3 to 7 described below are similar to and identical in configuration and operation and effect to the above-described first embodiment, and therefore, the embodiments are the same as those of the first embodiment. The description will be omitted and the different parts will be compared.

In the reinforcing member 17, the engaging portion 17a of Fig. 3 is formed in a single layer unlike the engaging portion 17a on the "U" shape of the first embodiment. Therefore, this coupling part 17a is arrange | positioned in the structure overlapping with the front end of the chassis base 15 by the PDP 11 side, and is fastened by the fastening member 22 to the front end of this chassis base 15. FIG. Of course, the above-mentioned fastening hole 22a is preferably provided at the front end of the coupling portion 17a and the chassis base 15. At this time, the attachment member 19 is interposed between the single-ply coupling portion 17a and the opposite PDP 11 to attach the two to each other.

4 and 5 are embodiments corresponding to FIGS. 2 and 3, respectively, and FIG. 4 is provided with the reinforcing portion 17b with only the parallel portion 17c without the finishing portion 17d, as compared with the embodiment of FIG. 2. FIG. 5 forms the reinforcing portion 17b using only the parallel portion 17c without the finishing portion 17d as compared to the embodiment of FIG. 3. 4 and 5, the stiffness of the chassis base 15 may be somewhat lower than that of the embodiments of FIGS. 2 and 3, but the configuration of the reinforcing member 17 is more simple within the allowable range of the stiffness. This can reduce the weight of the device.

6 and 7 are embodiments corresponding to FIGS. 4 and 5, respectively, and FIG. 6 is provided with an inclined portion 17e instead of the parallel portion 17c to provide the reinforcement portion 17b as compared with the embodiment of FIG. 4. 7 is provided with an inclined portion 17e instead of the parallel portion 17c to form the reinforcement portion 17b as compared with the embodiment of FIG. 5. These inclined portions 17e maintain their inclined state with respect to the planar direction of the PDP 11. This inclined portion 17e can shorten the length of the FPC 25 disposed between the reinforcing member 17 and the PDP 11.

Although the preferred embodiments of the present invention have been described above, the present invention is not limited thereto, and various modifications and changes can be made within the scope of the claims and the detailed description of the invention and the accompanying drawings. Naturally, it belongs to the scope of the invention.

As described above, according to the plasma display device according to the present invention, by forming the outer portion of the chassis base on a flat plate which is not bent and having a reinforcing member having a decomposed coupling structure on the outer portion thereof, the chassis is provided through the reinforcing member. The rigidity of the base is also secured, and the PDP and the chassis base can be easily combined with each other. Further, according to the present invention, the driver IC of TCP is arranged on this reinforcing member so that a separate heat dissipation member for the heat dissipation of the driver IC is not required, thereby further simplifying the structure of the chassis base.

Claims (12)

A plasma display panel; A thermal conductive sheet attached to one side of the plasma display panel; A chassis base attached to the thermal conductive sheet side plasma display panel; A reinforcing member mounted to the front end of the chassis base as a fastening member; And An attachment member interposed between the reinforcement member and a plasma display panel facing the reinforcement member and positioned outside the thermal conductive sheet; Including, The reinforcing member is coupled to the coupling portion is coupled by the fastening member at the front end of the chassis base, And a reinforcing part bent from the coupling part to the opposite side of the plasma display panel. The method of claim 1, And the chassis base is formed on a flat plate. delete The method of claim 1, The coupling portion is formed in a cross-section "U" shaped to support the front end of the chassis base on both sides, the plasma display device is fastened by the fastening member at the front end of the chassis base. The method of claim 4, wherein And the attachment member is interposed between the coupling portion and the plasma display panel opposite thereto. The method of claim 1, And the coupling part overlapping the front end of the chassis base on the plasma display panel side and fastened to the front end of the chassis base by the fastening member. The method of claim 6, And the attachment member is interposed between the coupling portion and the plasma display panel opposite thereto. The method of claim 1, And the reinforcement part includes a parallel part formed in parallel with the plasma display panel. The method of claim 8, And the reinforcing part includes a finishing part bent from the parallel part toward the chassis base. The method of claim 1, And the reinforcing part includes an inclined part formed to be inclined with respect to the planar direction of the plasma display panel. The method according to any one of claims 1, 2 and 4 to 10, And a driver IC electrically connected to an electrode of the plasma display panel and in close contact with the reinforcement unit. The method of claim 11, And a cover plate positioned outside the reinforcing member to press the driver IC toward the reinforcing portion.

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