JP2003008252A - Flat display device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a flat display device such as a plasma display device or the like, capable of easily executing a maintenance work or the like, while maintaining a state in which the device is supported by a stand. SOLUTION: The plasma display device comprises a plasma display panel unit 2 mounted at a rear part of a front cover 1, a rear-surface cover 3 mounted at a rear part of the unit, and a stand 4 mounted at the cover 3. The cover 3 is divided into a split cover 31 mounted at the stand 4, and a split cover 32 which is not mounted at the stand 4.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a flat panel display device such as a plasma display device, and more particularly to a structure of a rear surface cover.

[0002]

2. Description of the Related Art FIG. 8 shows an exploded perspective view of a conventional plasma display device, and FIG. 9 shows a perspective view of its assembled state. This plasma display device has a front cover 1
A plasma display panel (PDP) unit 2 arranged at the rear of the PDP unit 2, a rear cover 3 arranged at the rear of the PDP unit 2, and a pair of stands 4 and 4. A circuit board 5 is attached to the back side of the PDP unit 2. The rear cover 3 is attached to the front cover 1 with a plurality of screws 6. Further, the stand 4 is attached to the back surface of the rear cover 3 by screwing a screw 9 that is inserted into the screw insertion hole 7 through a washer 8 into a stand mounting hole 10 of the rear cover 3. The stand 4 supports the entire plasma display device.

[0003]

However, in the above configuration, the rear cover 3 is removed to adjust the various voltage adjusting volumes 11 of the circuit board 5 mounted on the rear surface of the PDP unit 2 and replace the fuse 12. If an attempt is made to perform other maintenance work on the circuit board, the stand 4 integrated with the rear cover 3 will also come off, so that the above maintenance work can be performed while the plasma display device is supported by the stand 4. However, there is a problem that the operation cannot be performed easily.

Further, since the stand 4 is supported by the rear cover 3 as an integral part, the rear cover 3
It is necessary to increase the supporting plate strength by increasing the thickness of the entire material plate, which causes a problem that the weight of the device becomes heavy.

Therefore, it is an object of the present invention to carry out maintenance work and the like easily, such as a plasma display device and other flat display devices, and particularly preferably to easily perform maintenance work while being supported by a stand. Another object of the present invention is to provide a flat panel display device such as a plasma display device which can be reduced in weight.

[0006]

A flat panel display device according to the present invention is a flat panel display device in which a display panel unit is attached to a rear portion of a front cover, and a rear cover is attached to a rear portion of the unit. Is divided into a plurality of divided cover portions.

In the flat panel display device, a stand is attached to the rear cover, and the plurality of divided cover portions include a first divided cover portion to which the stand is attached and a second divided cover to which the stand is not attached. It may also include a part.

Further, in the flat display device, a circuit board including an externally adjustable component may be arranged in a region of the back surface of the display panel unit facing the second divided cover portion. good.

In the flat panel display device, the size of the second divided cover portion may be limited to the size facing the circuit board.

In the flat panel display device, the second divided cover portion may be made of a material that is lighter in weight and thinner than the first divided cover portion.

In the flat panel display device, a part of the fixture used for attaching the second split cover portion may be a hinge.

[0012]

BEST MODE FOR CARRYING OUT THE INVENTION The present invention will be specifically described below with reference to the drawings showing the embodiments thereof. The same or equivalent members as those in the conventional example shown in FIGS. 8 and 9 are designated by the same reference numerals.

Embodiment 1. 1 is an exploded perspective view showing a schematic configuration of a plasma display device according to a first embodiment of the present invention. This plasma display device
The front cover 1, a PDP unit 2 arranged at the rear of the front cover 1, a rear cover 3 arranged at the rear of the PDP unit 2, and a pair of left and right stands 4 and 4.
On the back side of the PDP unit 2, a circuit board 5 including various voltage adjusting volumes 11 and fuses 12, which are externally adjustable parts, is attached.

The front cover 1 is made of a lightweight material such as aluminum or plastic. The rear cover 3 includes left and right split cover parts 31, 31 to which the respective stands 4 are attached.
And a central division cover part 32 to which the stand 4 is not attached. Left and right split cover part 31
As shown in FIG. 3, is a main member 31 made of a plate material such as a galvanized steel plate, aluminum or plastic.
A reinforcing portion member 31b made of a plate material such as a galvanized steel plate is laminated on the back surface of a, so that the strength for attaching the stand 4 is secured.

The plasma display device is assembled in the following procedure. First, PD on the back of the front cover 1
The P unit 2 is attached, and the circuit board 5 is attached to the back surface of the PDP unit 2. The circuit board 5 is a PDP
The split cover portion 32 at the center of the rear cover 3 on the back surface of the unit 2 is attached to the opposing region. Next, the left and right divided cover portions 31 and 31 and the central divided cover portion 32 that form the rear cover 3 are fastened to the front cover 1 with screws 6. Next, the stands 4 are attached to the left and right split cover portions 31, respectively. As shown in FIG. 3, a stand mounting hole 10 is formed in a portion of the split cover portion 31 where the main member 31 a and the reinforcing member 31 b overlap with each other, and the stand mounting hole 10 has a crimp nut 13 formed therein.
Is installed. The stand 4 is formed with a screw insertion hole 7 that is aligned with the crimp nut 13. The screw 9 inserted through the washer 8 into the screw insertion hole 7 is screwed into the crimp nut 13 to divide the stand 4 into pieces. It is attached to the cover portion 31. The stand 4 supports the entire plasma display device as shown in FIG.

In the plasma display device having the above structure, the split cover portion 32 at the center of the rear cover 3 is kept in the state of being supported by the stand 4 as shown in FIG.
Since it is possible to remove, the various voltage adjusting volume 11 of the circuit board 5 exposed in this state can be adjusted, the fuse 12 can be replaced, and the work such as maintenance of other circuit boards can be easily performed. . After work such as maintenance, the central split cover portion 32 can be returned to the assembled state by attaching it in the reverse order of the removal procedure.

In the rear cover 3, the central divided cover portion 32 to which the stand 4 is not attached is the left and right divided cover portions 31 and 31 to which the stand 4 is attached.
Since it can be made of a material that is lighter in weight and thinner in thickness than that of, the overall plasma display device can be made lighter.

Embodiment 2. 5 is a perspective view of a plasma display device according to a second embodiment of the present invention.
In this plasma display device, the rear cover 3 is
It is divided into two parts, that is, a divided cover portion 31A having an opening 33 (see FIG. 6) in a portion facing the circuit board 5 and a divided cover portion 32A covering the opening 33. Split cover part 31
A pair of left and right stands 4 and 4 is attached to A. The split cover portion 32A that covers the opening 33 is attached to the split cover portion 31A with screws 14 (see FIG. 6). Other configurations are the same as those in the first embodiment.

In this plasmonic display device, the divided cover portion 32A of the rear cover 3 is small in size so as to face the circuit board 5, and therefore, as shown in FIG. Also, it is possible to easily remove the split cover portion 32A during maintenance work or the like. FIG. 6 shows a state in which the split cover portion 32A is removed.

Embodiment 3. FIG. 7 shows a perspective view of a plasma display device according to a third embodiment of the present invention.
Also in this plasma display device, the rear cover 3 is
As in the case of the second embodiment, a divided cover portion 31A having an opening 33 in a portion facing the circuit board 5 and a divided cover portion 32A covering the opening 33 are divided into two.
However, here, the attachment of the divided cover portion 32A to the divided cover portion 31A is performed by the pair of hinges 15 and 15 and the two screws 14. That is, the split cover portion 32
The lower side of A is connected to the lower edge of the opening 33 through the hinges 15 and 15, and the upper side of the split cover portion 32A has two screws 1
4 is fastened to the upper edge of the opening 33. Then, by releasing the fastening with the screw 14, the split cover portion 32A pivots up and down around the hinges 15 and 15 as a support shaft to open the opening 3
3 is designed to open and close. Other configurations are similar to those in the second embodiment.

In this plasma display device, when the split cover portion 32A is removed, the screw 14 for releasing the fastening is used.
Only a small number of split covers 32 have been removed.
Since the lower side of A is still supported at a fixed position by the hinges 15, 15, the split cover portion 32 at the time of work such as maintenance is performed.
The removal and installation of A becomes easier.

A hinge may be used to attach the split cover portion 32 in the first embodiment as in the above.
Even in that case, the same effect as described above is obtained.

Further, in each of the above-described embodiments, the present invention is applied to the plasma display device among the flat panel display devices, but the present invention is also applicable to the flat panel display devices other than the plasma display device. Of course, it can be applied to. In that case, the PDP unit 2 is replaced with another flat display panel unit.

[0024]

The flat panel display device according to claim 1 of the present invention is a flat panel display device in which a display panel unit is attached to the rear portion of the front cover and a rear cover is attached to the rear portion of the unit. Since the rear cover is divided into a plurality of divided cover portions, only the required divided cover portion may be removed for maintenance or the like, and maintenance or other work can be performed easily.

In the flat display device according to the second aspect of the present invention, a stand is attached to the rear cover,
Since the plurality of divided cover portions include a first divided cover portion to which the stand is attached and a second divided cover portion to which the stand is not attached, only the second divided cover portion of the rear cover is included. By removing it, it is possible to easily perform work such as maintenance while being supported by the stand.

Further, in the flat-panel display device according to claim 3 of the present invention, a circuit board including an externally adjustable component in a region of the back surface of the display panel unit facing the second divided cover portion. Since the second divided cover part to which the stand is not attached is removed, the circuit board including the externally adjustable component is exposed, and the external adjustment can be easily performed.

In the flat panel display device according to the fourth aspect of the present invention, since the size of the second divided cover part is limited to the size facing the circuit board, the size of the second cover part is fixed. The number of tools is small and the split cover part can be easily removed during maintenance work.

In the flat panel display device according to the fifth aspect of the present invention, in the rear cover, the second split cover portion to which the stand, which does not require so much strength, is not attached, is of the stand which requires strong strength. Since it is made of a material that is lighter in weight and thinner in thickness than the attached first split cover portion, the weight of the entire flat panel display device can be reduced.

Further, in the flat-panel display device according to claim 6 of the present invention, the second display device is not provided with a stand.
Since a part of the fixture used for attaching the split cover part of is a hinge, when removing the second split cover part,
The number of fixtures to be unfastened is small, and the removed second split cover is still supported in place by the hinge, so it is easier to remove and install the split cover during maintenance work. become.

[Brief description of drawings]

FIG. 1 is an exploded perspective view showing a schematic configuration of a plasma display device according to a first embodiment of the present invention.

FIG. 2 is a perspective view showing an assembled state of the plasma display device according to the first embodiment of the present invention.

FIG. 3 is an enlarged sectional view showing an exploded stand mounting structure in the plasma display device according to the first embodiment of the present invention.

FIG. 4 is a perspective view showing a detached state of the split cover portion of the plasma display device according to the first embodiment of the present invention.

FIG. 5 is a perspective view showing an assembled state of the plasma display device according to the second embodiment of the present invention.

FIG. 6 is a perspective view showing a detached state of the split cover portion of the plasma display device according to the second embodiment of the present invention.

FIG. 7 is a perspective view showing an assembled state of the plasma display device according to the third embodiment of the present invention.

FIG. 8 is an exploded perspective view showing a schematic configuration of a conventional plasma display device.

FIG. 9 is a perspective view showing an assembled state of a conventional plasma display device.

[Explanation of symbols]

1 front cover, 2 PDP unit, 3 rear cover, 4 stand, 5 circuit board, 11 voltage adjustment volume (externally adjustable parts), 15 hinges, 31, 31
A division cover part, 32, 32A division cover part, 33
Opening.

   ─────────────────────────────────────────────────── ─── Continued front page    (72) Inventor Toshifumi Ueda             2-3 2-3 Marunouchi, Chiyoda-ku, Tokyo             Inside Ryo Electric Co., Ltd. F-term (reference) 4E360 AA02 AB03 AB08 AB61 BA02                       EA11 EA24 ED02 GA06 GA47

Claims (6)

[Claims] 1. A flat panel display device having a display panel unit attached to a rear portion of a front cover and a rear cover attached to a rear portion of the unit, wherein the rear cover is divided into a plurality of divided cover portions. Flat display device. 2. A stand is attached to the rear cover, and the plurality of divided cover portions include a first divided cover portion to which the stand is attached and a second divided cover portion to which the stand is not attached. The flat panel display device of claim 1, comprising: 3. The flat panel display according to claim 2, wherein a circuit board including an externally adjustable component is arranged in a region of the back surface of the display panel unit where the second split cover portion faces. apparatus. 4. The flat panel display device according to claim 3, wherein the size of the second split cover portion is limited to a size facing the circuit board. 5. The flat panel display according to claim 2, wherein the second split cover portion is made of a material that is lighter in weight and thinner than the first split cover portion. apparatus. 6. The flat panel display device according to claim 2, wherein a part of a fixture used for attaching the second split cover portion is a hinge.