JP2001282114A - Plasma display device - Google Patents

Abstract

(57) Abstract: To reduce a temperature difference between a display portion and a non-display portion or a non-display portion and an external electrode portion of a panel, and to suppress high stress generated by the temperature difference. An elastic body having high thermal conductivity is fixed to a back surface of a panel, a metal plate having high thermal conductivity is fixed to a back surface of the elastic body, and a back surface of the metal plate is attached to a display portion of the panel. A heat pipe 4 is provided to extend from the opposing display unit to the non-display unit opposing the non-display unit of the panel 1.

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 television images and the like using a plasma display panel.

[0002]

2. Description of the Related Art In recent years, a plasma display device has become popular as a device capable of displaying television images and the like on a thin and large screen. However, since the plasma display device is thin, a plasma display panel (PDP) is used.
However, there is a problem that the temperature rises locally.

For this reason, conventionally, a metal plate having a high thermal conductivity is adhered to the back surface of the PDP via an elastic body having a high thermal conductivity, so that the entire surface of the PDP is uniformly heated and heat radiation is promoted to reduce the temperature rise. Had been prevented. Further, by attaching a heat pipe to the metal plate, the high thermal conductivity of the metal plate has been further increased. Japanese Patent Application Laid-Open No. 10-116036 discloses a technique related to this kind of technology.

[0004]

SUMMARY OF THE INVENTION However, PDP
In addition to the display part of the displayable area,
An external electrode portion for connecting to the external control device is required, and there is a non-display portion between the external electrode portion and the display portion for securing a margin for routing the electrode wire. No consideration is given to high stress generated due to a temperature difference between the display unit, the external electrode unit, and the display unit.

An object of the present invention is to provide a plasma display device which reduces a temperature difference between a display portion and a non-display portion or a non-display portion and an external electrode portion of a PDP, and suppresses high stress caused by the temperature difference. Is to do.

[0006]

According to the present invention, an elastic body having high thermal conductivity is fixed to the back of a plasma display panel.
A metal plate having high thermal conductivity is fixed to the back surface of the elastic body, and extends from the opposed display portion facing the display portion of the panel to the opposed non-display portion facing the non-display portion of the panel on the back surface of the metal plate. A plasma display device provided with an existing heat pipe.

Further, according to the present invention, the heat pipe extends from the non-display portion facing the non-display portion of the panel to the panel through a side surface of the metal plate and the elastic body. A plasma display device characterized by the following.

The present invention is also directed to an external device in which the heat pipe is provided at an end of the panel through a side surface of the metal plate and the elastic body from a non-display portion facing the non-display portion of the panel. A plasma display device extending to an electrode portion.

The present invention also relates to a plasma display panel, wherein an elastic body having a high thermal conductivity is fixed to the back surface, a metal plate having a high thermal conductivity is fixed to the back surface of the elastic body, and a non-display portion of the panel is opposed to the non-display portion. The non-display portion facing or the opposing non-display portion and the external electrode portion provided at the end of the panel are disposed and sandwiched between the opposing non-display portion and the elastic body or the elastic body and the metal plate. A plasma display device provided with a heater using a heating wire.

Further, the present invention is the plasma display device, wherein the heater is reciprocated several times in a non-display portion facing the non-display portion of the panel.

[0011] The present invention also relates to a plasma display panel, wherein an elastic body having a high thermal conductivity is fixed to the back surface of the plasma display panel, a metal plate having a high thermal conductivity is fixed to the back surface of the elastic body, and the non-display portion of the panel is opposed to the non-display portion. A heater by a heating wire sandwiched between the opposing non-display portion and the elastic body or the elastic body and the metal plate, extending along the opposing non-display portion opposing the non-display portion of the panel, and extending the panel from there. And extending substantially to the vicinity of the center of the opposing display section facing the display section, and vertically returning to the opposing non-display section facing the non-display section of the panel. It is a plasma display device.

[0012]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS First, FIG. 4 will be described. FIG. 4 is a configuration diagram of a plasma display panel (PDP). (A) is a plan view and (B) is a rear view.
A plasma display panel (PDP) 1 has a front glass 11, a rear glass 12, and a frit glass 13 made of glass.
The rear glass 12 has a display electrode 121 and an insulating dielectric 122 attached thereto, and the front glass 11 and the rear glass 12 are sealed with frit glass 13 made of glass.

Here, the two display electrodes 121, 121 and the address electrode 111 form a cell in the discharge space by the partition wall 9, and the two display electrodes 121, 121 are formed.
A large number of cells each formed of a cell and an address electrode 111 are arranged vertically and horizontally between the front glass 11 and the rear glass 12. A display area is a display area in which cells formed by the two display electrodes 121 and 121 and the address electrode 111 are arranged. In the rear view of FIG. Since it is covered with the back glass 12, a portion facing the display of the panel on the back surface of the back glass 12 is an opposing display portion H.

On the other hand, a non-displayable area outside the opposing display section H, in which cells formed by the two display electrodes 121 and 121 and the address electrode 111 are not arranged, is a non-display area. In the rear view of FIG. 4B, a portion facing the non-display of the panel on the rear surface of the rear glass 12 is a facing non-display portion N.

Next, FIG. 1 will be described. FIG. 1 is a configuration diagram showing a first embodiment of the present invention. (A) is a plan view, (B) is a rear view, and (C) is a side view. In FIG. 1, reference numeral 1 denotes the plasma display panel (PDP) 1 described with reference to FIG. An elastic body 2 such as a silicon resin sheet having a high thermal conductivity is attached to the back surface of the plasma display panel (PDP) 1 with an adhesive or the like, and a metal plate 3 having a high thermal conductivity such as aluminum or copper is attached to the back surface of the elastic body 2. Is attached with an adhesive or the like, and extends from the opposing display portion (H in FIG. 4) opposing the display portion of the panel 1 to the back surface of the metal plate 3 from the opposing non-display portion opposing the non-display portion of the panel 1. Heat pipe 4 to be fixed by brazing or the like. This heat pipe 4
It extends from the opposing non-display portion facing the non-display portion of one panel to the panel 1 through the side surfaces of the metal plate 3 and the elastic body 2. The heat pipe 4 extends from an opposing non-display section facing the non-display section of the panel 1 to the metal plate 3 and the elastic body 2 through the side surface, and an external electrode (not shown) provided at an end of the panel 1. It may extend to the portion 113.

The heat pipe 4 can reduce the temperature difference between the display part and the non-display part or the non-display part and the external electrode part of the PDP, and can suppress the high stress generated by the temperature difference.

FIG. 2 is a configuration diagram showing a second embodiment of the present invention. (A) is a plan view, (B) is a rear view, (C)
Is a side view. 2, reference numeral 1 denotes the plasma display panel (PDP) 1 described with reference to FIG. An elastic body 2 such as a silicon resin sheet having a high thermal conductivity is attached to the back surface of the plasma display panel (PDP) 1 with an adhesive or the like, and a metal plate 3 having a high thermal conductivity such as aluminum or copper is attached to the back surface of the elastic body 2. To the panel 1
The non-display section (H in FIG. 4) facing the non-display section or the external non-display section opposite to the external electrode section 113 provided at the end of the panel 1 (not shown). Heaters 5 and 5 are provided by a non-display section and an elastic body 2 or a heating wire (not shown) sandwiched between the elastic body 2 and the metal plate 3. In FIG. 2, the heater 5 is
In this configuration, the panel 1 is reciprocated several times in an opposing non-display section facing the non-display section.

The heater 5 can reduce the temperature difference between the display part and the non-display part or the non-display part and the external electrode part of the PDP, and can suppress the high stress generated by the temperature difference.

FIG. 3 is a block diagram showing a third embodiment of the present invention. (A) is a plan view, (B) is a rear view, (C)
Is a side view. 3, reference numeral 1 denotes the plasma display panel (PDP) 1 described with reference to FIG. An elastic body 2 having a high thermal conductivity such as a silicon resin sheet is attached to the back of the plasma display panel (PDP) with an adhesive or the like, and a metal plate 3 having a high thermal conductivity such as aluminum or copper is attached to the back of the elastic body 2. Non-display portion (H in FIG. 4) which is adhered with an agent or the like and which faces the non-display portion of panel 1 and elastic body 2
Alternatively, although not shown, the heaters 5 and 5 formed by heating wires sandwiched between the elastic body 2 and the metal plate 3 are extended along the facing non-display section (H in FIG. 4) facing the non-display section of the panel 1. From there, the opposing display section facing the display section of panel 1 (N in FIG. 4)
Opposing non-display section (H in FIG. 4) which extends to near the center of the panel 1 and crosses the vicinity of the center to face the non-display section of the panel 1.
It is configured to return to. Here, the heaters 5 and 5 are arranged symmetrically.

With this heater 5, the temperature difference between the display portion and the non-display portion or the non-display portion and the external electrode portion of the PDP can be reduced, and the high stress generated by the temperature difference can be suppressed.

Further, by the configuration of the heaters 5, 5, the elastic body which bonds the plasma display panel and the metal plate is burned out by drawing out the heating wire while supplying electricity to the heating wire at the time of the disposal processing or the recycling processing, thereby cutting off the plasma display panel. And the metal plate can be easily separated.

[0022]

According to the present invention, a plasma display device which reduces a temperature difference between a display portion and a non-display portion or a non-display portion and an external electrode portion of a PDP and suppresses high stress generated by the temperature difference. Can be provided.

[Brief description of the drawings]

FIG. 1 is a configuration diagram showing a first embodiment of the present invention.

FIG. 2 is a configuration diagram showing a second embodiment of the present invention.

FIG. 3 is a configuration diagram showing a third embodiment of the present invention.

FIG. 4 is a configuration diagram of a plasma display panel.

[Explanation of symbols]

DESCRIPTION OF SYMBOLS 1 ... Plasma display panel, 11 ... Front glass of plasma display panel, 12 ... Back glass,
Reference numeral 13: frit glass made of glass; 111, address electrodes; 112, partition walls; 113, external electrode portions;
... display electrodes, 122 ... insulating dielectrics, 123 ... external electrode parts, 2 ... elastic bodies with high thermal conductivity, 3 ... metal plates with high thermal conductivity, 4 ... heat pipes, 5 ... heaters.

 ──────────────────────────────────────────────────続 き Continued on the front page (72) Inventor Atsushi Osawa 64 Nishiwaki, Okubo-cho, Akashi City, Hyogo Prefecture Fujitsu Hitachi Plasma Display Limited Akashi Office (72) Inventor ▲ Taka ▼ Masanori Kanagawa Prefecture 292, Machi F-term in Hitachi Image Information System Co., Ltd. (Reference) 5C040 GH10 5C058 AA11 AB01 BA35 5E322 AB04 AB06 AB09 DB10 EA02 EA11 5G435 AA12 BB06 EE02 GG44 HH00 HH18 LL04

Claims (6)

[Claims] An elastic body having a high thermal conductivity is fixed to the back of a plasma display panel, a metal plate having a high thermal conductivity is fixed to a back of the elastic body, and a display portion of the panel is formed on a back of the metal plate. A plasma display device comprising: a heat pipe extending from an opposing display section to an opposing non-display section opposing a non-display section of the panel. 2. The panel according to claim 1, wherein the heat pipe extends from the non-display section facing the non-display section of the panel to the panel through a side surface of the metal plate and the elastic body. A plasma display device. 3. The panel according to claim 1, wherein the heat pipe is provided at an end of the panel through a side surface of the metal plate and the elastic body from an opposing non-display part opposing the non-display part of the panel. A plasma display device extending to the external electrode portion. 4. A high thermal conductivity elastic body is fixed to the back surface of the plasma display panel, a high thermal conductivity metal plate is fixed to the back surface of the elastic body, and an opposing non-display opposing a non-display portion of the panel. Or an opposing non-display portion and an external electrode portion provided at an end portion of the panel, and are disposed so as to extend and sandwiched between the opposing non-display portion and the elastic body or the elastic body and the metal plate. A plasma display device comprising a heater using a hot wire. 5. The plasma display device according to claim 4, wherein said heater is reciprocated several times in a non-display portion facing said non-display portion of said panel. 6. An opposing non-display which has a high thermal conductivity elastic body fixed to the back surface of the plasma display panel, a high thermal conductivity metal plate fixed to the back surface of the elastic body, and faces a non-display portion of the panel. A heater by a heating wire sandwiched between the portion and the elastic body or the elastic body and the metal plate, extends along an opposing non-display portion opposing a non-display portion of the panel, and from there to a display portion of the panel. A plasma display device, wherein the plasma display device extends to substantially the vicinity of a center of an opposing display unit and returns to an opposing non-display unit opposing a non-display unit of the panel by traversing the center.