JPH10116036A - Plasma display device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a plasma display device which suppresses the local temp. rise of a PDP(plasma display panel). SOLUTION: This plasma display device is constituted by using the PDP 1 as a display device for display television videos, etc. An elastic material 2, such as silicone resin sheet, having high thermal conductivity, is affixed by an adhesive material, etc., to approximately the entire surface of the rear surface of the PDP 1. A metallic sheet 3, such as aluminum, having high thermal conductivity, is mounted by affixation, etc., with an adhesive material, etc., to the rear surface of the elastic material 2. Heat pipes may be previously fixed by brazing, etc., to the rear surface of the metallic sheet 3.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a plasma display device for displaying a television picture or the like using a PDP and preventing a local temperature rise of the PDP.

[0002]

2. Description of the Related Art In recent years, a plasma display device using a PDP has been generally used as a device capable of displaying television images and the like on a thin and large screen. However, since the PDP is thin, a heat generating portion is concentrated on a panel portion. In particular, the temperature of the upper part of the PDP rises due to heat convection, and the temperature rise of a white portion or the like having a large light emission luminance increases in accordance with the light emission luminance distribution of the display screen. Affect. In addition, there is also a problem that discomfort is caused when contact is made with a person.

[0003]

SUMMARY OF THE INVENTION The present invention has been made in view of the above problems, and has as its object to provide a plasma display device in which a local temperature rise of a PDP is suppressed.

[0004]

Means for Solving the Problems A metal plate having a high thermal conductivity is adhered to an almost entire back surface of a PDP (plasma display panel) via an elastic body having a high thermal conductivity, so that the entire surface of the PDP is uniformly heated. Promote heat radiation to prevent temperature rise.

[0005]

BEST MODE FOR CARRYING OUT THE INVENTION In a plasma display apparatus for displaying television images and the like using a PDP (plasma display panel) as a display device, a high thermal conductivity is provided over substantially the entire back surface of the PDP via an elastic body having a high thermal conductivity. Attach a metal plate.

The elastic body having a high thermal conductivity is a sheet made of silicone resin.

The metal plate is an aluminum plate.

[0008] A heat pipe is attached to the metal plate.

The heat pipe is welded to the back of the metal plate.

[0010] The heat pipe is sandwiched between the elastic body and the metal plate.

A plurality of heat radiating plates are planted on the metal plate at substantially right angles to the metal plate.

[0012]

1 shows (A) a plan view, (B) a rear view, and (b) a main part of an embodiment of a plasma display device according to the present invention.
(C) It is a side view. A plasma display device is configured using the PDP 1 as a display device for displaying television images and the like. An elastic body 2 such as a silicon resin sheet having a high thermal conductivity is attached to almost the entire back surface of the PDP 1 with an adhesive or the like. A metal plate 3 of high thermal conductivity, such as aluminum or copper, is attached to the back surface of the elastic body 2 with an adhesive or the like.

FIG. 2A is a plan view, FIG. 2B is a rear view, and FIG. 2C is a side view of a main part of another embodiment of the plasma display device according to the present invention. Similarly to the above, a plasma display device is configured using the PDP 1 as a display device for displaying television images and the like. An elastic body 2 such as a silicon resin sheet having a high thermal conductivity is provided on almost the entire back surface of the PDP 1.
With an adhesive or the like. A metal plate 3 of high thermal conductivity, such as aluminum or copper, is attached to the back surface of the elastic body 2 with an adhesive or the like. Further, a heat pipe 4 is fixed to the back surface of the metal plate 3 by brazing or the like.

FIG. 3 is (A) a plan view, (B) a rear view, and (C) a side view of a main part of another embodiment of the plasma display device according to the present invention. Similarly to the above, an elastic body 2 such as a silicon resin sheet having a high thermal conductivity is attached to substantially the entire back surface of the PDP 1 with an adhesive or the like. A metal plate 3 of high thermal conductivity, such as aluminum or copper, is screwed on the back of the elastic body 2 to a boss 5 planted with an adhesive or the like on the back of the PDP 1 with screws 6. The heat pipe 4 is sandwiched between the elastic body 2 and the metal plate 3.

FIG. 4A is a plan view of a main part of another embodiment of the plasma display device according to the present invention, and FIG.
It is a rear view, (C) side view. As above, PDP1
An elastic body 2 such as a silicon resin sheet having a high thermal conductivity is adhered to an almost entire surface of the back surface with an adhesive or the like. A metal plate 3 of high thermal conductivity, such as aluminum or copper, is attached to the back surface of the elastic body 2 with an adhesive or the like. A plurality of heat radiating plates 7 are planted on the rear surface of the metal plate 3 at substantially right angles to the metal plate 3.

[0016]

The present invention is embodied in the form described above, and has the following effects.

By attaching a metal plate having a high thermal conductivity to an almost entire back surface of the PDP via an elastic body having a high thermal conductivity, heat conduction in the plane direction of the PDP is improved, so that the entire surface of the PDP is uniformly heated. Is done. In addition, since the heat dissipation of the PDP is promoted by the metal plate, the temperature rise of the PDP is suppressed. Therefore, the PDP will not be locally heated to a high temperature,
The service life is extended.

Since the metal plate can be uniformly contacted with the PDP by using a silicon resin sheet for the elastic body having a high thermal conductivity, the metal plate can be attached to the PDP with low thermal resistance.

When the metal plate is an aluminum plate, a lightweight metal plate having high thermal conductivity can be obtained.

By attaching a heat pipe to the metal plate, the effective thermal conductivity of the metal plate can be further increased.

The heat pipe can be attached to the metal plate with low thermal resistance by welding to the back surface of the metal plate.

By sandwiching the heat pipe between the elastic body and the metal plate, the initial purpose can be achieved with a simple structure.

By arranging a plurality of heat radiating plates at substantially right angles on the metal plate, a metal plate having high thermal conductivity can be obtained at low cost and effectively.

[Brief description of the drawings]

FIG. 1A is a plan view, FIG. 1B is a rear view, and FIG. 1C is a side view of a main part of an embodiment of a plasma display device according to the present invention.

FIG. 2 is (A) a plan view, (B) a rear view, and (C) a side view of a main part of another embodiment of the plasma display device according to the present invention.

3A is a plan view, FIG. 3B is a rear view, and FIG. 3C is a side view of a main part of another embodiment of the plasma display device according to the present invention.

4A is a plan view, FIG. 4B is a rear view, and FIG. 4B is an essential part of a plasma display device according to still another embodiment of the present invention.
(C) It is a side view.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 PDP (Plasma display panel) 2 Elastic body 3 Metal plate 4 Heat pipe 5 Boss 6 Screw 7 Heat sink

Claims (7)

[Claims] 1. A plasma display apparatus for displaying television images and the like using a PDP (plasma display panel) as a display device, wherein substantially the entire back surface of the PDP is provided with a high thermal conductivity through an elastic body having a high thermal conductivity. A plasma display device characterized by attaching a metal plate. 2. The plasma display apparatus according to claim 1, wherein the elastic body having a high thermal conductivity is a sheet made of a silicone resin. 3. The plasma display device according to claim 1, wherein said metal plate is an aluminum plate. 4. The plasma display device according to claim 1, wherein a heat pipe is attached to the metal plate. 5. The plasma display device according to claim 4, wherein the heat pipe is welded to a back surface of the metal plate. 6. The plasma display device according to claim 4, wherein said heat pipe is sandwiched between said elastic body and said metal plate. 7. The plasma display device according to claim 1, wherein a plurality of heat radiating plates are implanted on the metal plate at substantially right angles to the metal plate.