KR100709181B1 - Plasma display device - Google Patents

Abstract

A plasma display apparatus including a plasma display panel (PDP), a chassis base supporting a rear surface of the PDP, a reinforcing member, and a circuit board assembly is provided. The reinforcement member is attached to the rear of the chassis base. The circuit board assembly is mounted to the reinforcing member and electrically connected to the plasma display panel. Since the circuit board assembly is not mounted to the chassis base but to the reinforcing member, damage and breakage of the chassis base and the plasma display panel due to the mounting of the circuit board assembly may be minimized.

PDP, chassis base, circuit board assembly, reinforcement

Description

Plasma display device {PLASMA DISPLAY DEVICE}

1 is a view showing a plasma display device according to a first embodiment of the present invention.

FIG. 2 is a cross-sectional view illustrating a cross section taken along line II of FIG. 1.

3 is a cross-sectional view of a plasma display device according to a second embodiment of the present invention.

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 capable of minimizing damage to a chassis base by mounting a circuit board assembly.

As is well known, a plasma display apparatus is an apparatus for implementing an image using plasma discharge. Such a plasma display apparatus includes a plasma display panel (PDP) for realizing a desired image through plasma discharge, and a chassis base for firmly supporting the PDP. One side of the chassis base on the opposite side to which the PDP is mounted is mounted with at least one printed circuit board assembly PBA required to drive the PDP.

In general, the chassis base is formed of a metal material such as aluminum, which has good rigidity and thermal conductivity, so as to firmly support the PDP and the circuit board assembly and effectively discharge heat generated from the PDP and the circuit board assembly to the outside.

According to the conventional plasma display device, the front surface of the chassis base supports the rear surface of the plasma display panel (PDP).

The rear surface of the chassis base is formed with a reinforcing member for reinforcing the structural strength of the chassis base.

In addition, a circuit board assembly for driving the PDP is mounted on the rear of the chassis base. At this time, the circuit board assembly is mounted directly to the rear of the chassis base through a connecting boss. This circuit board assembly is connected to the PDP through a connecting member. For example, the connecting member may be a flexible printed circuit (FPC) film.

In a conventional plasma display device, a connecting boss for mounting a circuit board assembly is formed by tapping or the like. When tapping, stress is concentrated in the portion of the plasma display panel corresponding to the connection boss of the chassis base and the connection of the circuit board assembly. As a result, when vibration occurs as in the vibration reliability test of the plasma display apparatus, there is a problem that the plasma display panel corresponding to the tapped connection boss may be damaged.

SUMMARY OF THE INVENTION The present invention has been made to solve the above problems, and an object thereof is to provide a plasma display apparatus which can minimize damage or damage to a chassis base or a plasma display panel by mounting a circuit board assembly. .

A plasma display device according to an embodiment of the present invention for achieving the above object includes a plasma display panel (PDP), a chassis base, a reinforcing member, and a circuit board assembly. The chassis base supports the rear surface of the PDP, and the reinforcing member is attached to the rear surface of the chassis base. The circuit board assembly is mounted to the reinforcing member and electrically connected to the plasma display panel.

The reinforcing member may include a first plate member that is surface-bonded to the chassis base, and a second plate member that protrudes from the first plate member to the rear of the chassis base, wherein the circuit board assembly includes the first plate member. It can be mounted to the plate member.

The first plate member may include a connecting boss protruding to the rear of the chassis base, and the circuit board assembly may be mounted to the connecting boss.

The reinforcing member may include a surface contact portion which is in surface contact with the rear surface of the chassis base, and a bent portion that is bent from the surface contact portion to form a jaw protruding to the rear of the chassis base.

The circuit board assembly may be mounted on the surface contact portion.

The surface contact part may include a connection boss protruding to the rear of the chassis base, and the circuit board assembly may be mounted on the connection boss.

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

1 and 2, a plasma display device according to an embodiment of the present invention supports a plasma display panel (PDP) 203 and a rear surface 205 of the PDP 203. A chassis base 201.

The rear surface 205 of the PDP 203 is attached to the front surface 207 of the chassis base 201 so that the PDP 203 can be supported by the chassis base 201. In this case, as shown in FIG. 2, a heat dissipating layer 202 may be disposed between the chassis base 201 and the PDP 203. The heat dissipation layer 202 may be formed of any material having good thermal conductivity so as to transfer heat generated from the PDP 203 to the chassis base 201. For example, as the heat dissipation layer 202, a heat dissipation sheet of a known type may be used.

Reinforcing members 211 and 212 are fixedly attached to the rear surface 209 of the chassis base 201. According to the first embodiment of the present invention, the reinforcing members 211 and 212 may include a first plate member 211 which is surface-bonded to the chassis base 201, and from the first plate member 211 to the chassis base 201. And a second plate member 212 protruding backward. The reinforcing members 211 and 212 are members for reinforcing the structural strength of the chassis base 201. In the first embodiment of the present invention, the two plate-shaped first plate member 211 and the second plate member 212 are formed in combination, but the shape of the reinforcing members 211 and 212 may be variously modified. to be. 1 and 2 may form a reinforcing member when the reinforcing member 211 is a separate member from the chassis base 201, or a part of the chassis base 201 is extended to overlap. have.

A circuit board assembly 215 including a circuit for driving the PDP 203 is mounted to the first plate member 211. As shown in FIG. 2, the first plate member 211 has at least one connecting boss 217 protruding rearward of the chassis base 201, and the circuit board assembly 215 is provided with the at least one connecting boss 217. The at least one connecting boss 217 may be mounted by a screw 218. Thus, the circuit board assembly 215 is mounted on the first plate member 211 to be spaced apart from the first plate member 211.

The connection member 219 electrically connects the circuit board assembly 215 and the PDP 203. For example, a flexible printed circuit FPC film of known type may be used as the connecting member. A cover plate 220 may be disposed outside the connection member 219 to protect it.

Fig. 3 shows a cross section of the plasma display device according to the second embodiment of the present invention. The overall configuration and operation of the plasma display device according to the second embodiment are similar to or the same as those of the first embodiment. Detailed descriptions of similar or identical parts between the two parts will be omitted and different parts will be described.

Referring to FIG. 3, in the second embodiment of the present invention, the reinforcing members 311 and 312 may include a surface contact portion 311 which contacts the rear surface of the chassis base 201, and a jaw that protrudes rearward of the chassis base 201. It includes a bent portion 312 is bent from the surface contact portion 311 to form a (313). The bent portion 312 and the surface contact portion 311 may be formed by bending a plate extending from the chassis base 201. By providing the bent portion 312, the rigidity of the chassis base 201 and the mounting of the circuit board assembly 215 are facilitated.

The surface contact portion 311 includes a connecting boss 217 protruding to the rear of the chassis base 201. The circuit board assembly 215 is mounted to the connecting boss 217 with a screw 218.

In the above, preferred embodiments of the present invention have been described, but the present invention is not limited to the above embodiments, and easily changed by those skilled in the art to which the present invention pertains. It includes all changes and / or modifications to the extent deemed acceptable.

According to the embodiment of the present invention as described above, the circuit board assembly is not mounted to the chassis base, but is mounted on the reinforcing member, thereby minimizing damage and damage to the chassis base by mounting the circuit board assembly.

Claims (6)

Plasma display panel (PDP), A chassis base supporting a rear surface of the PDP, A reinforcing member attached to a rear surface of the chassis base, And a circuit board assembly mounted to the reinforcing member and electrically connected to the plasma display panel. In claim 1, The reinforcing member includes a first plate member that is surface-bonded to the chassis base, and a second plate member that protrudes from the first plate member to the rear of the chassis base. The circuit board assembly is mounted on the first plate member. In claim 2, The first plate member has a connecting boss protruding to the rear of the chassis base, The circuit board assembly is mounted on the connection boss. In claim 1, The reinforcing member includes a surface contact portion which is in surface contact with the rear surface of the chassis base and a bent portion that is bent from the surface contact portion to form a jaw protruding to the rear of the chassis base. In claim 4, The circuit board assembly is mounted on the surface contact portion. In claim 5, The surface contact portion has a connecting boss protruding to the rear of the chassis base, The circuit board assembly is mounted on the connection boss.

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