JPH11194718A - Plasma display device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To efficiently dissipate heat by forming a gas for heat dissipation by putting plural flexible wiring boards, which connect a plasma display panel and a control circuit part, partially one over the other. SOLUTION: The curved flexible wiring boards 16 and 17 are arrayed in opposite directions and arranged so that they partly overlap with each other. A nearly elliptic gap part 101 can be formed between the adjacent flexible wiring boards 16 and 17 of this configuration. Further, a slight gap can be formed at the overlap part 100. In this device, heat generated by the plasma display panel and the control circuit part is dissipated out of the housing by forcible suction by a fan or natural convection through the gap (gap part 101, gap formed by the overlap part 100, gap between arrays, etc.), of the flexible wiring board group. Consequently, gap area wider than the total area of the flexible wiring boards 16 and 17 is obtained to enable more efficient heat dissipation.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a heat radiation mounting structure for a plasma panel and a control circuit in a plasma display device.

[0002]

2. Description of the Related Art Conventionally, as a plasma display device having a structure in which a rise in temperature of a plasma display panel is suppressed, for example, Japanese Patent Application Laid-Open No. Hei 7-21094 has been proposed.

A conventional plasma display device will be briefly described with reference to FIG. In FIG.
11, a plasma display panel; 512, a control circuit unit; 513, a flexible wiring board; and 551, a mounting plate. Next, the mounting structure of the above device will be briefly described.

An L-shaped mounting plate 551 is disposed on the rear surface of the plasma display panel 511, a control circuit 512 is mounted on the main plane, and a flexible wiring board 513 is provided between the plasma display panel 511 and the control circuit 512. Connect with. The flexible wiring board 513 extends from four directions of the plasma display panel 511. As the heat radiating means, a part of the L-shape of the mounting plate 551 is extended rearward to increase the surface area. In addition, the outer shape of the flexible wiring board 513 disposed so as to surround the plasma display panel 511 is shaped like a drum with a narrow central portion, and a gap is formed between adjacent flexible wiring boards to radiate heat.

[0005]

However, the above configuration has a problem that the amount of constriction is limited by the standard dimensions of the conductor width and the distance between conductors inside the flexible wiring board, and only a small gap can be formed. Was. Further, in order to comply with the standards of the conductor width and the distance between conductors, a multilayer flexible wiring board is required, and the cost is increased.

[0006]

In order to solve the above-mentioned problems, a plasma display device according to the present invention is characterized in that a plurality of flexible wiring boards for connecting a plasma display panel and a control circuit partially overlap each other, so that heat is radiated. The configuration is such that the use space is widened.

The end of the flexible wiring board is formed as one block on the panel connection side, and divided into a plurality of blocks on the control circuit connection side to form a heat radiation gap.

According to the above configuration, heat radiation to the outside of the housing, which has been hindered by a large number of flexible wiring boards, is promoted, and a rise in the temperature of the plasma display panel can be suppressed.

[0009]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS A first invention of the present invention is to form a heat radiation gap by partially overlapping a plurality of flexible wiring boards for connecting a plasma display panel and a control circuit section. The feature of the plasma display device is that the heat is dissipated more efficiently.

Further, the second invention is the plasma display device according to the first invention, characterized by alternately arranging flexible wiring boards curved in the opposite direction, and more efficiently dissipates heat. I can do it.

Further, a third aspect of the present invention is the plasma display device according to the first aspect, wherein flexible wiring boards having the same shape provided with through holes are arranged, and the heat is more efficiently radiated. Can be performed.

Further, a fourth aspect of the present invention includes a plasma display panel, a control circuit unit attached to a rear surface of the panel, and a plurality of flexible wiring boards for transferring signals between the control circuit unit and an end of the flexible wiring board. The plasma display device is characterized in that the shape is one block on the side of the plasma display panel connection part and divided into a plurality of blocks on the side of the control circuit part to form a heat radiating gap. Can be performed.

A fifth aspect of the present invention provides a plasma display panel comprising: a plasma display panel; a control circuit unit mounted on a rear surface of the panel; and a plurality of flexible wiring boards for transmitting and receiving signals therebetween. A substantially horseshoe-shaped end portion is divided into one block on the plasma display panel connection portion side and two blocks on the control circuit portion connection side, and a part of the flexible wiring boards is overlapped with each other. This is a plasma display device characterized in that a heat radiation gap is formed, and heat radiation can be performed more efficiently.

A sixth aspect of the present invention provides a plasma display panel comprising: a plasma display panel; a control circuit unit mounted on a rear surface of the panel; and a plurality of flexible wiring boards for transmitting and receiving signals therebetween. Each of them has a substantially U-shape and has an end shape divided into one block on the plasma display panel connection side and two blocks on the control circuit connection side. Further, the lengths of the divided blocks are made different from each other. In addition, the plasma display device is characterized in that a heat radiation gap is formed, and heat radiation can be performed more efficiently.

(Embodiment 1) Hereinafter, a plasma display device according to Embodiment 1 of the present invention will be described with reference to FIGS. FIG. 1 is a perspective view of an essential part showing a concept of a plasma display device according to a first embodiment of the present invention, and shows a perspective state in which an escutcheon is removed for convenience. FIG. 2 is a plan view of the flexible wiring board constituting FIG.

In FIG. 1, reference numeral 11 denotes a plasma display panel, 12 denotes a control circuit unit, 13 denotes a group of flexible wiring boards, 14 denotes a heat dissipation fan, 15 denotes a housing, and 51 denotes a mounting plate. In FIG. 1, a flat mounting plate 51 is arranged on the rear surface of the plasma display panel 11,
The control circuit section 12 is mounted on the main plane of the mounting plate 51, and the flexible display board 13 connects between the plasma display panel 11 and the control circuit section 12. The flexible wiring board group 13 extends from the four sides of the plasma display panel 11. A plurality of radiating fans 14 are attached to the upper part of the housing, and suck and discharge heated air in the housing.

As shown in FIG. 2, the flexible wiring boards 16 and 17 in the first embodiment have a substantially U-shape with a curved outer shape. One end is connected to the plasma display panel 11 and the other end is connected to the control circuit unit 12 side. (Not shown) Furthermore, the flexible wiring boards 16 and 17 which were curved were alternately arranged in the opposite direction, and a part of the flexible wiring boards was arranged so as to overlap each other. With this configuration, a substantially elliptical void portion 101 can be formed between the adjacent flexible wiring boards 16 and 17. Further, a slight gap can be formed in the overlapping portion 100.

In FIGS. 1 and 2, heat generated by the plasma display panel 11 and the control circuit section 12 is forcibly sucked by a fan 14 or natural convection, thereby forming a gap in the flexible wiring board group 13 (a gap section 101, an overlapping section). 100A, and is radiated to the outside of the housing 15 through the gaps between the arrays.

As described above, according to the configuration of the first embodiment, it is possible to obtain a larger void area with respect to the total area of the flexible wiring board, and it is possible to more efficiently radiate heat.

Embodiment 2 Hereinafter, a plasma display device according to Embodiment 2 of the present invention will be described with reference to FIG.
This will be described with reference to FIG. FIG. 3 is a plan view of another flexible wiring board constituting FIG. FIG.
Is similar to that of the first embodiment, and the description is omitted.

The outer shape of the flexible wiring board is different from that of FIG. That is, the outer shape of the flexible wiring board 18 in the case of FIG. 3 was substantially Φ-shaped, and the through-hole 102 was provided at the center. One end is connected to the plasma display panel 11 and the other end is connected to the control circuit 12 side. (Not shown) Further, the flexible wiring boards were arranged so that a part of them overlapped each other. Thereby, a slight gap can be formed in the overlapping portion 100A.

The heat generated by the plasma display panel 11 and the control circuit unit 12 is forcibly sucked by the fan 14 or by natural convection. Through the gap, etc.) to the outside of the housing 15,
Heat is dissipated.

As described above, according to the configuration of the second embodiment, it is possible to obtain a larger void area with respect to the total area of the flexible wiring board, and it is possible to more efficiently dissipate heat. In addition, excellent productivity is exhibited by arranging flexible wiring boards having the same shape.

Embodiment 3 Hereinafter, a plasma display device according to Embodiment 3 of the present invention will be described with reference to FIG.
This will be described with reference to FIG. FIG. 4 shows a plan view of another flexible wiring board constituting FIG. FIG.
Is similar to that of the first embodiment, and the description is omitted.

The outer shape of the flexible wiring board is different from that of FIG. That is, the flexible wiring boards 21 and 22 in the case of FIG.
Has a substantially horseshoe-shaped outer shape, and a void portion 103 corresponding to a through hole is provided at the center. One end is connected to the plasma display panel 11 to form one block. The other end is connected to the control circuit section 12 and divided into two blocks. In addition, the flexible wiring boards are arranged so that a part thereof overlaps each other. Thereby, a slight gap can be formed in the overlapping portion 100B.

The heat generated by the plasma display panel 11 and the control circuit section 12 is forcibly sucked by the fan 14 or natural convection, and the gaps (the gaps and gaps formed by the gaps 103 and the overlapping portions 100B) of the flexible wiring board group 13 are formed. Through the gap, etc.) to the outside of the housing 15,
Heat is dissipated.

As described above, according to the configuration of the third embodiment, it is possible to obtain a larger gap area with respect to the total area of the flexible wiring board, and the gap formed on each side of the plasma display panel becomes larger. Heat can be dissipated efficiently.

(Embodiment 4) A plasma display device according to Embodiment 4 of the present invention will be described below with reference to FIGS. FIG. 5 shows a plan view of another flexible wiring board constituting FIG. FIG. 6 is a perspective view of a main part of the flexible wiring board connected to the control circuit unit 12 side. The configuration of FIG.
Therefore, the description is omitted.

The outer shape is different from that of the flexible wiring board shown in FIG. That is, the flexible wiring boards 31 and 32 in the case of FIG.
Has a substantially U-shaped outer shape. One end is connected to the plasma display panel 11 to form one block. The other end is connected to the control circuit section 12 and divided into two blocks. Further, the length dimensions of the two blocks are different on the left and right. Further, flexible wiring boards were arranged at predetermined intervals. That is, in the case of this embodiment, no overlapping portion is provided.

In FIG. 6, reference numeral 41 denotes a connector group for connecting a flexible wiring board and a circuit. By arranging the connector group 41 linearly in parallel with one side of the panel in the control circuit 12, when the flexible wiring board group 13 and the connector group 41 are connected, unevenness in position occurs between adjacent flexible wiring boards. .

The heat generated by the plasma display panel 11 and the control circuit unit 12 is forcibly sucked by the fan 14 or natural convection. (A gap or the like), and is sucked out of the housing 15 and radiated.

As described above, according to the configuration of the fourth embodiment, it is possible to obtain a larger void area with respect to the total area of the flexible wiring board, and the voids formed on each side of the plasma display panel become larger. Heat can be dissipated efficiently.

[0033]

As described above, according to the plasma display device of the present invention, it is possible to obtain a larger void area with respect to the total area of the flexible wiring board, and to more efficiently radiate heat. An apparatus can be provided.

[Brief description of the drawings]

FIG. 1 is a perspective view of a main part showing a concept of a plasma display device according to a first embodiment of the present invention.

FIG. 2 is a plan view of a flexible wiring board constituting FIG. 1;

FIG. 3 is a plan view of a flexible wiring board according to Embodiment 2 of the present invention.

FIG. 4 is a plan view of a flexible wiring board according to Embodiment 3 of the present invention.

FIG. 5 is a plan view of a flexible wiring board according to Embodiment 4 of the present invention.

FIG. 6 is a perspective view of a main part of a plasma display device according to a fourth embodiment of the present invention.

FIG. 7 is a perspective view of a conventional plasma display device.

[Explanation of symbols]

DESCRIPTION OF SYMBOLS 11 Plasma display panel 12 Control circuit part 13 Flexible wiring board group 14 Fan 15 housing | casing 16, 17, 18, 21, 22, 31, 32 Flexible wiring board 41 Connector group 51 Mounting plate 100, 100A, 100B Overlapping parts 101, 103 Void 102 Through hole

Claims (6)

[Claims] 1. A plasma display device, wherein a plurality of flexible wiring boards for connecting a plasma display panel and a control circuit unit partially overlap with each other to form a heat radiation space. 2. The plasma display device according to claim 1, wherein curved flexible wiring boards are alternately arranged in the opposite direction. 3. The plasma display device according to claim 1, wherein flexible wiring boards of the same shape provided with through holes are arranged. 4. A plasma display panel comprising: a plasma display panel; a control circuit unit attached to a rear surface of the panel; and a plurality of flexible wiring boards for transmitting and receiving signals between the panels. A plasma display device characterized in that one block is formed on the side of the unit and a plurality of blocks are formed on the side connected to the control circuit to form a heat-radiating gap. 5. A plasma display panel comprising: a plasma display panel; a control circuit unit attached to a rear surface of the panel; and a plurality of flexible wiring boards for transmitting and receiving signals therebetween, wherein the plurality of flexible wiring boards have a substantially horseshoe shape, and The end shape is divided into one block on the side of the plasma display panel connection part and two blocks on the side of the control circuit part connection, and furthermore, a part of the flexible wiring board is overlapped with each other to form a heat radiation gap. A plasma display device characterized by the above-mentioned. 6. A plasma display panel comprising: a plasma display panel; a control circuit unit mounted on a rear surface of the panel; and a plurality of flexible wiring boards for transmitting and receiving signals therebetween, wherein each of the plurality of flexible wiring boards has a substantially U-shape. ,
The end shape is divided into one block on the side of the plasma display panel connection part and two blocks on the side of the control circuit part connection. Further, the length of the divided blocks is made different to form a heat radiation gap. A plasma display device characterized by the above-mentioned.