KR100615886B1 - Plasma display device - Google Patents

Abstract

The present invention relates to a plasma display device for expressing a character or an image using gas discharge, and to provide a plasma display device having a chassis member having a stable support structure by having rigidity that can withstand external shocks and vibrations sufficiently. For this purpose, a plasma display panel, a chassis member for supporting it, a reinforcing member provided on the rear surface of the chassis member to reinforce the rigidity of the chassis member, and a support member installed to cross the rear surface of the chassis member to support the chassis member And a circuit board arranged behind the chassis member to drive the plasma display panel, and a case.

Description

Plasma display device

1 is an exploded perspective view showing a conventional plasma display device.

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

3A and 3B are perspective views illustrating the reinforcing member of FIG. 2.

4A is a perspective view illustrating the bracket of FIG. 2.

4B is a cross-sectional view taken along line II of FIG. 4A.

5 to 7 are exploded perspective views showing other embodiments of the present invention.

<Brief description of symbols for the main parts of the drawings>

100, 200: plasma display device

110, 210: plasma display panel

120, 220: chassis member

122, 223: circuit board

121, 221: reinforcing members

222: Bracket

140, 240: Case

BACKGROUND OF THE INVENTION 1. Field of the Invention [0001] The present invention relates to a flat panel display device having a plasma display panel for expressing characters or images using gas discharge, and more particularly, to a plasma display device having a chassis member for supporting a plasma display panel.

Recently, as a flat panel display device having a plasma display panel, the plasma display device has a large screen and has excellent characteristics of high definition, ultra-thin, light weight, and wide viewing angle, and is easier to manufacture and larger in size than other flat panel display devices. It is attracting attention as a large flat panel display device.

Such a plasma display device is generally composed of a front panel and a rear panel spaced apart at predetermined intervals to face each other, and a plasma display panel for generating plasma discharge in a discharge space formed between the front panel and the rear panel, and such plasma A rear panel of the display panel includes a chassis member supporting the panel and a substrate arranged on the rear surface of the chassis member so as to operate by applying a predetermined electrical signal so that the plasma display panel expresses a desired character or image.

In such a plasma display device, a plasma display panel supported by the chassis member is vibrated or damaged due to an impact or vibration applied to the chassis member from the outside during distribution, thereby deteriorating operational reliability.

In order to solve this problem, in the conventional plasma display apparatus 100, as shown in FIG. 1, a reinforcement member 121 is locally installed on the rear surface of the chassis member 120 to reinforce the rigidity of the chassis member. The chassis member was able to withstand external shocks well.

However, in the conventional plasma display apparatus 100, as the plasma display apparatus 100 becomes high quality and large in size, the number of necessary reinforcement members 121 increases, and it is difficult to secure sufficient rigidity to withstand external shocks and vibrations. When the boss 121a is formed on the reinforcing member 121 to install and use the plasma display apparatus 100 on the wall, the load of the plasma display apparatus 100 is concentrated on the boss 121a. There is a problem that the local breakdown of the plasma display panel 110 supported by the member 120 is increased, and the support structure is weak.

An object of the present invention is to provide a plasma display device having a chassis member having a stable support structure by having a rigidity that can withstand external shocks and vibrations sufficiently.

Another object of the present invention is to provide a plasma display device having a plasma display panel capable of sufficiently high reliability by withstanding external shocks and vibrations.                         

It is still another object of the present invention to provide a plasma display device which can be supported on a wall, comprising a chassis member having a stable support structure by preventing a load of the plasma display device from being concentrated locally on a part of the chassis member through the support structure. It is to provide a plasma display device.

Still another object of the present invention is to prevent a breakage of a plasma display panel by preventing a load of the plasma display device from being locally concentrated on the plasma display panel through the support member in the plasma display device that can be supported on the wall. It is to provide a plasma display device capable of doing so.

In order to achieve the above object and various other objects, the present invention provides a plasma display panel for implementing an image using plasma discharge, a chassis member for supporting the plasma display panel behind the plasma display panel, and the chassis member. At least one reinforcing member installed at a rear surface of the at least one reinforcing member to reinforce the rigidity of the chassis member, at least one support member connected to the reinforcing member and installed to cross the rear surface of the chassis member to support the chassis member; And a circuit board disposed behind the chassis member to drive the plasma display panel, and a case accommodating the plasma display panel, the chassis member, the reinforcing member, and the support member. do.

Here, the support member may have a portion extending from one edge of the chassis member to the edge facing it and may be coupled to the case.

In addition, it is preferable that the support member intersects with the reinforcement member or is disposed to be substantially parallel to the reinforcement member and overlap.

The support member may be composed of at least two members arranged to intersect with each other.

The reinforcing member may be a strip-shaped metal plate extending continuously, or a plurality of strip-shaped metal plates partially cut.

At least one coupling portion may be further formed at an edge of the chassis member to protrude therefrom to couple the chassis member to the case.

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

Referring to FIG. 2, which is an exploded perspective view illustrating a plasma display apparatus 200 according to an exemplary embodiment of the present invention, the plasma display apparatus 200 includes a plasma display panel 210, a chassis member 220, a circuit board 223, and the like. A case 240 is provided.

The plasma display panel 210 is disposed to face each other so as to be separated by a predetermined distance to display an image using plasma discharge generated in a discharge space between the front substrate 211 and the rear substrate 212 having edges sealed. do.

Although not shown in FIG. 2 between the front substrate 211 and the rear substrate 212, a plurality of electrodes causing plasma discharge by a predetermined voltage controlled according to an electrical signal generated from the circuit board 223; A gas for causing plasma discharge by a voltage applied between the electrodes and a phosphor for generating visible light by ultraviolet rays generated from the plasma discharge are provided.

A chassis member 220 supporting the plasma display panel 210 is coupled to the rear of the plasma display panel 210. The combination of the plasma display panel 210 and the chassis member 220 is arranged on the edge and the center of the rear surface of the plasma display panel 210, as shown in Figure 2, the double-sided adhesive tape 213 is disposed on the chassis member ( 220) by close contact. The chassis member 220 is formed using a metal having high thermal conductivity, such as aluminum, in order to effectively transfer heat generated from the plasma display panel 210 to the outside. Plasma display by disposing a thermally conductive medium 214 having a thickness substantially equal to that of the double-sided adhesive tape 213 in an area where the double-sided adhesive tape 213 is not disposed between the chassis member 220 and the plasma display panel 210. Heat generated in the panel 210 is easily transferred to the chassis member 220 through the heat conducting medium 214. The heat conducting medium 214 is formed of a material such as silicon glass, silicon sheet, acrylic sheet having high thermal conductivity.

On the rear surface of the chassis member 220, one reinforcing member 221 transversing the rear surface thereof is provided at the top and the bottom, respectively. The reason for installing the reinforcing member 221 in this way is as follows. That is, since the plasma display apparatus 200 generally has a relatively larger size than other flat panel display apparatuses, the structural stability may be reduced by buckling of the chassis member 220 due to a load applied from the outside. There is a risk, and this risk increases as the plasma display apparatus 200 becomes larger. Also, when the temperature of the chassis member 220 becomes high during the operation of the plasma display apparatus 200, the chassis member 220 is caused by thermal expansion. As it is bent forward or backward, the plasma display panel 210 cannot be stably supported, and heat is generated between the chassis member 220 and the plasma display panel 210 so that heat generated in the plasma display panel 210 is effectively prevented. There is a problem that can not be delivered to (220), Is one such that a plurality of reinforcing members 221 in the rear of the chassis member 220 are disposed to solve these problems.

The reinforcing member 221 is made of a strip-shaped plate or flange having a cross section as shown in Figs. 3A and 3B, and is connected to the chassis by screws 226 passing through a plurality of holes 221a formed in a portion thereof. Is coupled to the member 220. Although the reinforcing member 221 may be made of various materials, it is preferable that the reinforcing member 221 is made of a rigid metal and is suitable for reinforcing the rigidity of the chassis member 220.

A plurality of brackets 222 are coupled to the reinforcing member 221 at the rear of the reinforcing member 221 and fixed to the case 240 while crossing the rear surface of the chassis member 220 in the vertical direction. The support members such as) are arranged in parallel to each other to support the chassis member 220 and the like. The joining of the bracket 222 and the reinforcing member 221 may be made, for example, by screwing, in which the gap between the bracket 222 and the reinforcing member 221 is prevented from occurring in the joining portion. An auxiliary material of conductive material may be interposed. The reason why the auxiliary is conductive is to enable electrical conduction between the bracket 222 and the reinforcing member 221, but a non-conductive auxiliary may be used if necessary. The bracket 222 may be formed of various materials, but it is preferable that the bracket 222 is formed of a rigid member such as aluminum or steel to be suitable for supporting the chassis member 220.

As such, the bracket 222 is coupled to the reinforcing member 221 coupled to the chassis member 220 and both ends thereof are fixed to the case 240 to thereby secure the chassis member 220 and the plasma display panel 210 supported thereon. Since the case 240 can be firmly supported, a stable support structure can be secured, and the plasma display apparatus 200 can greatly reduce the influence of the external shock or vibration.

The bracket 222 is a strip-shaped plate extending continuously as shown in FIG. 4A or 4B and in one direction, for example, toward the case 240 which is fixed in the vicinity of both ends coupled with the case 240. It is preferable to be in a shape to bend. Because the center portion of the bracket 222 is in a straight line can be easily coupled to the reinforcing member 221 and the vicinity of both ends is bent toward the case 240 can be easily fixed to the case 240 to be. The bracket 222 may be fixed to the case 240 by allowing the screw 245 passing through the holes 222a formed near both ends thereof to be coupled to the receiving groove 244 formed in the case 240.

The reinforcing member 221 coupled to the bracket 222 is provided with means for fastening the plasma display apparatus 200 to a wall or the like like the boss 228. In this way, the boss 228 is installed on the reinforcing member 221 coupled to the bracket 222 and traverses the rear surface of the chassis member 220 in the horizontal direction, thereby fastening the plasma display panel 210 to the wall to thereby display the plasma display. The reinforcement member 221 and the bracket 222 in which the boss 228 is formed may weigh the weight of the plasma display apparatus 200 concentrated on the site where the boss 228 is formed, as well as fastening the device 200 to the wall. The self-concentration of the plasma display apparatus 200 is concentrated on the site where the boss 228 is formed by dispersing it in the related art, so that the chassis member 220 and the plasma display panel 210 may be locally damaged near the boss 228. This high thing can be greatly reduced.

As shown in FIG. 2, the protrusion 224 protruding therefrom is formed at the corner of the chassis member 220, thereby assembling the chassis member 220 to the case 240. The protrusion 224 is formed by being integrally coupled with the chassis member 220 or by coupling a separate member to the chassis member 220 by screws or the like. The coupling part 224 may be formed at the edges in addition to the corners of the chassis member 220 and may be formed in an appropriate number as necessary. The protrusion 224 is coupled to the case 240 by a screw 227 coupled to the hole 246 of the case 240 through the hole 224a formed therein.

A circuit for generating a predetermined electrical signal applied to an electrode of the plasma display panel 210 to cause a plasma discharge so that an image can be displayed on the plasma display panel 210 on a rear surface of the chassis member 220. A plurality of circuit boards 223 made of substrates are provided. The circuit board 223 is disposed in an area other than the reinforcing member 221 and the bracket 222 of the chassis member 220.

Electrical signals for driving the plasma display panel 210 generated on the circuit board 223 are the circuit board 223 and the plasma display panel 210 disposed at the edge of the chassis member 220 as shown in FIG. 2. It is transmitted to the plasma display panel 210 by the signal transmitting means 225 disposed over the edge of the (). The signal transmission means 225 may be formed in various forms, for example, in the form of a flexible printed circuit (FPC) or a tape carrier package (TCP).

The plasma display panel 210, the chassis member 220, the circuit board 223, and the like are accommodated in the case 240 as shown in FIG. 2. The case 240 is disposed in front of the plasma display panel 210 and the front case 241 in which the opening 243 is formed so that a user can view an image, and the case 240 is disposed behind the chassis member 220. A rear case 242 having a plurality of holes 244 and 245 through which air is introduced and discharged is formed.

As shown in FIG. 2, a filter 250 disposed to fit the opening 243 of the front case 240 is installed between the front case 241 and the plasma display panel 210 to display the plasma display panel 210. Protects against external shock or blocks electromagnetic waves generated when the plasma display apparatus 200 is driven.

The plasma display apparatus 200 according to another exemplary embodiment of the present invention includes various reinforcing members 221 and brackets 222 as shown in FIGS. 5 to 7. That is, as shown in FIG. 5, the reinforcing member 221 may be intermittently broken instead of being continuously connected in the horizontal direction of the chassis member 220. As shown in FIG. ) And the bracket 222 may be arranged to be combined so as to overlap each other in the same direction, for example, the longitudinal direction of the chassis member 220, as shown in Figure 7 bracket 222 is the longitudinal direction of the chassis member 220 At least one additional bracket 222 may be disposed in the horizontal direction of the chassis member 220 so as to pass through the plurality of brackets 222 disposed in the direction and the center thereof. As described above, in the plasma display apparatus 200 of the present invention, the bracket 222 may have the structure of the chassis member 220 having the reinforcing member 221 formed by having the structures of the various types of the reinforcing member 221 and the bracket 222. The case 240 may be stably fixed and the chassis member 220 may be effectively prevented from being deformed.

Hereinafter, the operation of the present invention configured as described above.

When the plasma display apparatus 200 starts to operate, an electrical signal generated from the circuit board 223 is transmitted to the electrode of the plasma display panel 210 by the signal transmitting means 225, thereby causing the plasma display panel 210 to operate. Plasma discharge is generated in the to generate ultraviolet rays from the plasma gas, the phosphor is excited by such ultraviolet rays to emit visible light to implement the image.

According to the above configuration, the present invention can stably fix the chassis member and the plasma display panel supported by the case to the case so that they can sufficiently withstand external shocks or vibrations, thereby ensuring high reliability.

In addition, the present invention is to prevent the local failure of the chassis member and the plasma display panel supported by it by distributing the local concentration of the plasma display device through the fastening means when the plasma display device is fastened to the wall. It can be prevented.

Although the present invention has been described with reference to the embodiments shown in the drawings, this is merely illustrative, and those skilled in the art to which the present invention pertains have various modifications and equivalent other embodiments from these embodiments. I can understand that it is possible. Therefore, the protection scope of the present invention is defined by the technical spirit of the appended claims.

Claims (9)

A plasma display panel for implementing an image using plasma discharge; A chassis member supporting the plasma display panel behind the plasma display panel; At least one reinforcing member installed at a rear surface of the chassis member to reinforce the rigidity of the chassis member; At least one support member coupled to the reinforcement member and installed to cross the rear surface of the chassis member to support the chassis member; A circuit board disposed behind the chassis member to drive the plasma display panel; And And a case accommodating the plasma display panel, the chassis member, the reinforcement member, and the support member. The method of claim 1, And the support member is coupled to the case and has a portion extending from one edge of the chassis member to an edge facing the chassis member. The method of claim 1, And the support member crosses the reinforcement member. The method of claim 1, And the support member is disposed to be substantially parallel to the reinforcement member and overlap with the support member. The method of claim 1, And the support member comprises at least two members arranged to intersect with each other. The method of claim 1, And the connecting member and the reinforcing member are screwed together. The method of claim 1, And the reinforcing member is a strip-shaped metal plate extending continuously. The method of claim 1, And the reinforcing member is a plurality of strip-shaped metal plates, some of which are cut. The method of claim 1, And at least one coupling portion formed at an edge of the chassis member to protrude therefrom, the coupling portion coupling the chassis member to the case.

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