JPH0713502A - Display device - Google Patents

Abstract

PURPOSE:To narrow the spacing between the front surface plates of adjacent display units in the state of mounting gaskets on the flank plates of the display units. CONSTITUTION:The display device 10 is formed with step parts 14 on the outer periphery on the rear surface side of the flank plates 13 of casings 12 of the display units 11. The parts formed with the step parts 14 are formed as fitting parts 15 to be fitted with the gaskets 4. The gaskets 41 are formed of rubber as a blank material to a frame shape and are formed to the inside diameter smaller than the inside diameter of the flank plates 13 and to the same outside diameter as the outside diameter of the front surface plates 17. Groove parts 42 are formed on the front surface side of the gaskets 41 and the fitting parts 15 are fitted into the groove parts 42. The spacing between the front surface plates 17 of the adjacent display units 11 is narrowed in the state of mounting the gaskets 14 to the flank plates 13 of the display units 11 by such a structure.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a display device having a plurality of display elements arranged in a matrix to form one screen, and more particularly to a display device suitable for outdoor display devices. Regarding

[0002]

2. Description of the Related Art In recent years, a large number of light emitting display elements such as light emitting diodes are arranged in a matrix in a vertical direction and a horizontal direction, and the light emitting display elements are independently controlled by blinking and dimming to display characters or images. Large display devices are being used in public facilities such as roads and stadiums. In such a display device, in order to facilitate replacement and maintenance of display elements, a plurality of display units in which a plurality of light emitting display elements are arranged in a matrix are attached to a display plate body, and one display unit is selected from the plurality of display units. Make up the screen.

FIG. 12 is a front view showing a display unit of such a conventional display device.

In FIG. 12, a display unit 61 has light emitting diodes 62 arranged in 16 rows in the vertical direction and 16 rows in the horizontal direction on the front side.

On the back side of the display unit 61, a plurality of printed wiring boards 63 for driving the light emitting diodes 62 are arranged with their board surfaces facing sideways.

FIG. 13 is a sectional view showing a display device 60 to which the display unit 61 of FIG. 12 is attached.

In FIG. 13, a display device 60 has a structure in which a plurality of display units 61 are mounted vertically and horizontally on a display plate body 81. The display unit 61 includes a housing 64.
And a front plate 66 attached to the entire surface of the housing via a packing 65, and a plurality of light emitting diodes 6 on one side surface.
2 is attached to the printed wiring board 63.

The front plate 66 is formed so that its outer diameter is the same as that of the side plate 71 of the housing 64. Case 6
4 is formed by bending a metal plate into a box shape, forms a mouth portion 67 for inserting the printed wiring board 63 on the back side, and exposes the plurality of light emitting diodes 62 on the front side. A plurality of open holes 68 are formed.
Further, the packing 65 and the front plate 66 are also formed with a plurality of openings 69 and 70 for exposing the plurality of light emitting diodes 62 to the front side, respectively. The opening 68 of the housing 64 and the opening 70 of the front plate 66 are formed larger than the outer diameter of the light emitting diode 62.
The hole 69 of No. 5 is formed to be smaller than the outer diameter of the light emitting diode 62. With such a structure, the packing 6
5 has a waterproof property between the light emitting diode 62 and the housing 64.

The housing 64 is provided with a screw stop portion (not shown). By fixing the screw stop portion to the display plate main body 81 by screwing, the housing 64 is attached to the display plate main body 81. A plate-like packing 82 is attached to the display plate body 81 at a position corresponding to the side plate 71. The packing 82 includes a rear end 72 of the side plate 71 of the housing 64.
Is pressed. With such a structure, the packing 82
Has a waterproof property between the display plate body 81 and the side plate 71. Although not shown, the back surface side of the display plate body 81 is a waterproof casing, and various control circuits are provided in this casing.

According to such a display device, the packing 6
Although the plurality of display units 61 are made waterproof by 5, 82, since the packing 65 is attached to the display plate main body 81, the attachment work to the display plate main body 81 is troublesome, and the work is also difficult. It also takes time. In consideration of this, there has been developed one in which a packing is attached to an end of a side plate of a display unit.

FIG. 14 is a cross-sectional view showing a display device in which a packing is attached to the end portion of the side plate of such a display unit. The same components as those in FIG. 13 are designated by the same reference numerals and their description is omitted.

The display device shown in FIG. 14 has a display plate body 91.
A packing 92 is attached to the side surface plate 71 in order to provide waterproofness between the side surface plate 71 and the side surface plate 71 of the housing 64. The packing 92 is made of rubber in a frame shape, and has an inner diameter smaller than the inner diameter of the side plate 71 and an outer diameter larger than the outer diameter of the side plate 71. That is, the packing 92 has an outer diameter larger than that of the front plate 66.

A groove 93 is formed on the front side of the packing 92, and the side plate 71 is inserted into the groove 93. The width of the groove portion 93 is set to be narrower than the thickness of the side surface plate 71 when the side surface plate 71 is not inserted, so that the groove portion 93 is pressed against the side surface plate 71 and does not drop off from the side surface plate 71. The packing 92 is attached to the side plate 71 and is pressed against the display plate body 91. With such a structure, the packing 92 is waterproof between the display plate body 91 and the side plate 71.

According to such a display device, since the packing 92 is attached to the display unit 61, the packing 92 can be easily replaced by removing the display unit 61. However, the packing 92 is attached to the front plate 6
Since it is larger than the outer diameter of 6, the gap A1 between the front plates 66 of the adjacent display units 61 has to be wide. For this reason, in the screen in which the plurality of display units 61 are arranged, this gap A1 becomes a black line and stands out, giving an unnatural impression to the person who views the display device.

[0015]

In the conventional display device described above, when the packing is attached to the side plate of the display unit in order to facilitate the replacement of the packing, the gap between the front plates of the adjacent display units is reduced. It had to be wide, and this gap became a black line and stood out on the screen, giving an unnatural impression to the viewer of the display device.

Therefore, an object of the present invention is to provide a display device in which a gap between the front plates of adjacent display units can be narrowed in a state where the packing is attached to the side plate of the display unit.

[0017]

According to the present invention, a plurality of display elements are arranged in a matrix on a front plate, and a peripheral outer diameter of a rear end of a side plate is smaller than that of the front plate. A display unit, a peripheral outer diameter that is the same as or smaller than the front plate of the display unit, and a packing that fits on the rear end of the side plate of the display unit; and a plurality of the display units. Is provided with a plurality of display plate main bodies mounted from the back side, and a plate-like member that is in pressure contact with the packing provided at the position of the display plate main body corresponding to the packing of the display unit.

[0018]

With this structure, since the outer circumference of the packing is formed to be the same as or smaller than the outer circumference of the front plate of the display unit, the side plates of adjacent display units are brought close to each other and the packing is attached. Even in the open state, the gap between the front plates of the adjacent display units can be narrowed.

[0019]

Embodiments of the present invention will be described in detail below with reference to the drawings.

FIG. 1 is a sectional view of a main part showing an embodiment of a display device according to the present invention.

In FIG. 1, the display device 10 of this embodiment.
Has a step portion 14 formed on the outer periphery of the rear side end portion 13a of the side plate 13 of the housing 12 of the display unit 11, and the portion where the step portion 14 is formed is used as a fitting portion 15 for fitting with the packing 41. .

The packing 41 is made of rubber in the shape of a frame and has an inner diameter smaller than the inner diameter of the side plate 13 and an outer diameter equal to the outer diameter of the side plate 13. A groove portion 42 is formed on the front side of the packing 41, and the fitting portion 15 is inserted into the groove portion 42. This groove 4
No. 2 has a width narrower than the thickness of the fitting portion 15 in a state where the fitting portion 15 is not inserted, and the packing 41 is pressed against the fitting portion 15 so as not to fall off from the side surface plate 13. There is. Further, the packing 41 is pressed against the plate-shaped member 52 of the display plate main body 51 while being attached to the fitting portion 15. With such a structure, the packing 41 has a waterproof property between the display plate body 51 and the side plate 13.

A front plate 17 is provided on the front side of the housing 12 via a packing 16. The outer diameter of the front plate 17 is the same as the outer diameter of the side plate 13. Case 12
An opening 19 is formed on the front side to expose the light emitting diode 18 to the front side. Further, the packing 16 and the front plate 17 are also formed with openings 20 and 21 respectively exposing the light emitting diodes 18 to the front side. The packing 16 is waterproof between the light emitting diode 18 and the housing 12.

FIG. 2 is a perspective view of the display device of FIG. 1 with the display unit removed.

In FIG. 2, the display device 10 has a structure in which the display unit 11 is attached to the display plate body 51.

On the front plate 17 of the display unit 11, light emitting diodes 18 as display elements are arranged in 16 columns vertically and 16 columns horizontally.
They are arranged in rows. The light emitting diode 18 emits light of red and green and also emits light of yellow and orange by controlling the balance of the two colors of red and green. Further, the front plate 17 includes
A light-shielding louver 22 that laterally partitions the light-emitting diode 18 is provided in a protruding manner.

The front plate 17 is screwed and fixed to the housing 12 via the packing 16 with screws 23. On the rear surface side of the display unit 11, there are provided four rod-shaped members 24 each having an internal thread portion into which a screw 43 is screwed. On the other end side of the rod-shaped member 24, the housing 12, the packing 16, and the front plate 1 of the display unit 11 are fixed by screws 25.
It is attached and fixed to 7.

On the outer periphery of the side plate 13 of the housing 12 on the back side,
The packing 41 is attached.

The display plate main body 51 has a structure in which a wall portion 53 for reinforcing the plate member 52 is provided on the back side of the plate member 52. The plate-shaped member 52 is formed in a lattice shape having openings 54 at positions corresponding to the display unit 11. The opening 54 is formed to be larger than the side surface of the display unit 11, and the display unit 11 can be attached by moving the display unit 11 from the back side to the front side of the plate member 52. On the back side of the wall portion 53, a screw stop plate 56 having an insertion hole 55 into which the screw 43 is inserted is provided.

FIG. 3 is a front view of the display device 10 of FIG.

In FIG. 3, on the front side of the display device 10, the display units 11 are arranged side by side in three rows and seven columns. A frame portion 50 is provided around the display units 11 arranged in three rows vertically and seven rows horizontally. The wall portion 53 shown in FIG. 2 is formed in a lattice shape along the boundary of the display unit 11. On the back side of the display device 10, a waterproof case is provided, and various control circuits are provided in the case.

FIG. 4 is an enlarged front view of the display unit 11 attached to the display device 10 of FIG.

In FIG. 4, the outer diameter of the front side of the display unit 11 is larger than the opening 54 formed in the plate member 52.

FIG. 5 is a sectional view of the display device 10 of FIG.

In FIG. 5, the casing 1 of the display unit 11
2, the packing 16 and the front plate 17 have a plurality of openings 19, 2 respectively corresponding to the plurality of light emitting diodes 18.
0 and 21 are formed. A plurality of light emitting diodes 18
Are arranged in a matrix on one surface of the printed wiring board 26. The printed wiring board 26 is attached and fixed to the rear surface side of the housing 12 with the light emitting diode 18 inserted in the openings 19, 20, and 21.

One end of the rod member 24 is screwed and fixed to the screw plate 56 by the screw 43.

The other end of the rod-shaped member 24 has a printed wiring board 26.
The housing 1 is inserted into a through hole (not shown) of FIG.
2, fixed to the packing 16 and the front plate 17 with screws.

The operation of such an embodiment will be described below.

When removing the display unit 11 from the display plate main body 51 of the display device 10, the worker removes the rod-shaped member 24 from the screw fixing plate 56 by loosening and removing the screw 43 from the back side of the display device 10. Thereby, with the packing 41 attached to the side surface plate 13 of the display unit 11, the worker can display the display unit 1 on the front side of the display device 10.
1 can be removed.

Since the packing 41 has the same outer diameter as the outer diameter of the front plate 17, the gap between the front plates 17 of the adjacent display units 11 is set to be narrower than that of the conventional example shown in FIG. be able to.

According to such an embodiment, it is possible to narrow the space between the front plates 17 of the adjacent display units 11 with the packing 41 attached to the side plate 13 of the display unit 11, so that the packing 41 is With easy replacement, the gap between the front plates 17 of the adjacent display units 11 can be made inconspicuous on the screen, and both high maintainability and high image quality can be achieved.

FIG. 6 is a cross-sectional view of an essential part showing another embodiment of the display device according to the present invention. The same components as those in FIG. 1 are designated by the same reference numerals and the description thereof is omitted.

In FIG. 6, the display device 110 of this embodiment.
Forms a step portion 114 on the outer periphery of the back surface side end portion 113a of the side surface plate 113 of the housing 112 of the display unit 111, and forms the step portion 10 on the inner periphery of the back surface side end portion 113a of the side surface plate 113.
4 is formed, and the portion where the step portions 114 and 104 are formed is used as a fitting portion 115 that fits with the packing 141.

The packing 141 is made of rubber and has a frame shape. The inner diameter is the same as the inner diameter of the side plate 113, and the outer diameter is the same as the outer diameter of the side plate 113. . On the front side of the packing 141, the groove 14
2 is formed, and the fitting portion 115 is inserted into this groove portion 142. The width of the groove portion 142 is set to be narrower than the thickness of the fitting portion 115 when the fitting portion 115 is not inserted, and the packing 141 is pressed against the fitting portion 115 so as not to fall off from the side surface plate 113. Has become. The packing 141 is attached to the fitting portion 115,
It is pressed against the plate member 52 of the display plate body 51. Case 11
A front plate 17 is provided on the front side of 2 via a packing 16. The outer diameter of the front plate 17 is the same as the outer diameter of the side plate 113. The other structure is the same as that of the embodiment of FIG.

According to such an embodiment, the packing 14
Since the outer diameter of 1 is the same as the outer diameter of the front plate 17,
The same effect as that of FIG. 1 can be obtained, and since the inner diameter of the packing 141 is the same as the inner diameter of the side surface plate 113, the space inside the display unit 111 can be widened.

FIG. 7 is a cross-sectional view of a main part showing another embodiment of the display device according to the present invention. The same components as those in FIG. 1 are designated by the same reference numerals and their description is omitted. .

In FIG. 7, the display device 210 of this embodiment.
Forms an inclined surface 214 on the outer periphery of the back side end portion 213a of the side plate 213 of the housing 212 of the display unit 211, and the portion where the inclined surface 214 is formed is used as a fitting portion 215 for fitting with the packing 241. .

The packing 241 is made of rubber and has a frame shape. The packing 241 has an inner diameter smaller than that of the side plate 213 and an outer diameter equal to that of the side plate 213.
A groove 242 is formed on the front side of the packing 241, and the fitting portion 215 is inserted into the groove 242. The groove portion 242 has a cut angle smaller than the angle formed by the inclined surface 214 of the fitting portion 215 and the inner side surface 204 in a state where the fitting portion 215 is not inserted, and the packing 241 is fitted into the fitting portion 215. The portion 215 is pressed against the side plate 213 so as not to fall off. Packing 24
1 is pressed against the plate-shaped member 52 of the display plate main body 51 while being attached to the fitting portion 215. This front plate 17 is
The outer diameter is the same as the outer diameter of the side plate 213. The other structure is the same as that of the embodiment of FIG.

According to such an embodiment, the packing 24
Since the outer diameter of 1 is the same as the outer diameter of the front plate 17,
The same effect as that of FIG. 1 is obtained, and the inclined surface 214 is formed on the outer periphery of the side surface plate 213 on the rear surface side.
There is also an effect that the packing 241 can be easily attached to the 13.

FIG. 8 is a cross-sectional view of a main part showing still another embodiment of the display device according to the present invention. The same components as those in FIG. 1 are designated by the same reference numerals and the description thereof will be omitted. There is.

In FIG. 8, the display device 310 of the present embodiment.
Forms inclined surfaces 304 and 314 on the inner and outer peripheries of the back side end 313a of the side plate 313 of the housing 312 of the display unit 311 and fits the parts where the inclined surfaces 314 and 304 are formed with the packing 341. The fitting portion 315 is shaped like a letter.

The packing 341 is made of rubber and has a frame shape. The inner diameter is the same as the inner diameter of the side plate 313 and the outer diameter is the same as the outer diameter of the side plate 313. . A V-shaped groove portion 342 is formed on the front side of the packing 341, and the fitting portion 315 is inserted into the groove portion 342. The groove portion 342 is formed in the fitting portion 3
15 is not inserted, the inclined surface 31 of the fitting portion 315
4 is set to be smaller than the angle formed by the inclined surface 304, and the packing 341 has the fitting portion 31.
5 is pressed against the side plate 313 so as not to fall off the side plate 313. The packing 341 is pressed against the plate-shaped member 52 of the display plate body 51 while being attached to the fitting portion 315.
The outer diameter of the front plate 17 is the same as the outer diameter of the side plate 313. Further, the packing 341 has a back end 343 formed in a wavy cross section. The other structure is the same as that of the embodiment of FIG.

According to such an embodiment, the packing 34
Since the outer diameter of 1 is the same as the outer diameter of the front plate 17 and the inner diameter of the packing 341 is the same as the inner diameter of the side plate 313, the same effect as the embodiment of FIG. Also, since the groove portion 342 is formed in a V shape, there is an effect that the packing 341 can be easily attached to the side surface plate 313. Also, the back end 34 of the packing 341 is
By forming 3 having a wavy cross section, the waterproof property is further improved.

FIG. 9 is an exploded perspective view of a display unit showing an embodiment of the display device according to the present invention.

In FIG. 9, the display unit 4 of the present embodiment.
11, a front plate 417 made of a resin having elasticity is attached to the front side of a housing 412 made of a material having high strength such as an aluminum alloy, and a rear side end portion 413a of a side plate 413 of the housing 412 is attached. The waterproof member 441 is fitted.

The housing 412 and the front plate 417 are formed with a plurality of openings 419 and 421, respectively, corresponding to the plurality of light emitting diodes 418. The plurality of light emitting diodes 418 are arranged in a matrix on one surface of the printed wiring board 426. The printed wiring board 426 has an opening 41.
The light emitting diode 418 is inserted into the 9, 421 and mounted on the back surface side of the housing 412. A plurality of plate-shaped portions 420 for increasing strength are formed on the inner side surface of the side surface plate 413 of the housing 412. In addition, the front plate 417,
Light-shielding louver 42 that horizontally divides the light-emitting diode 418
2 is projected.

The waterproof member 441 has a structure in which the first packing 442 on the display unit 411 side and the second packing 443 on the plate-shaped member side are attached by an attachment 444.

FIG. 10 is a rear view showing a state in which the display unit of FIG. 9 is attached to the display plate body.

The display plate main body 451 has a structure in which a wall portion (not shown) for reinforcing the plate member 452 is provided on the back side of the plate member 452. The display unit 411 is attached to the plate member 452 of the display plate body 451.
The screws 453 are fixed by screws at positions corresponding to the four corners of 1. The plate-shaped member 452 is formed in a lattice shape having openings 454 at positions corresponding to the display unit 411. The opening 454 is formed to be larger than the side surface of the display unit 411, and the display unit 411 can be attached by moving the display unit 411 from the back side to the front side of the plate member 452.

FIG. 11 is a sectional view of an essential part showing a state in which the display unit of FIG. 9 is attached to the display plate body.

In FIG. 11, the attachment 444 of the waterproof member 441 is formed of a material having low elasticity such as polycarbonate or metal in a frame shape, and is used for attaching the first packing 442 to the outer periphery of the display unit side. A step portion 445 is formed, and a groove portion 446 that fits into the second packing 443 is formed on the back surface side. An inclined portion 448 for weight reduction is formed on the inner periphery of the attachment 444 on the display unit side.

The first packing 442 is made of rubber material in the shape of a frame. The inner diameter of the first packing 442 is smaller than the inner diameter of the side surface plate 413, and the outer diameter is the same as the outer diameter of the side surface plate 413. . On the front side of the first packing 442, the step 4
42a is formed, and this step portion 442a forms the side plate 4
13 is fitted to the rear end portion 413a. This step 4
The outer diameter of 42a is set to be larger than the inner diameter of the rear end 413a in a state where it is removed from the rear end 413a, and the first packing 442 is pressed against the rear end 413a. Has become. The inner diameter of the first packing 442 is set smaller than the outer diameter of the step portion 445 in a state where it is not attached to the step portion 445 of the attachment 444, and the first packing 442 is pressed against the step portion 445. Has become. The second packing 443 is formed of a rubber material in a frame shape and has a circular cross section. The groove portion 446 of the attachment 444 has an arc bottom. The second packing 443 has a groove portion 44.
The width of the groove 446 is larger than the width of the groove 446 when the groove 446 is removed from the groove 6, so that the groove 446 does not fall off when attached to the groove 446. Also, the second packing 443 is attached to the groove portion 446,
It is pressed against the plate-shaped member 452 of the display plate body 451. With such a structure, the second packing 443 has a waterproof property between the display plate body 451 and the side plate 413.

The opening 421 of the front plate 417 is formed to be smaller than the light emitting diode 418 in a state where the plurality of light emitting diodes 418 are removed, and between the front plate 417 and the plurality of light emitting diodes 418. , Is waterproof.

The front plate 417 is fixed to the housing 412 by screws 423. Display unit 411
On the rear surface side of the above, four rod-shaped members 424 having female screw portions into which the screws 443 are screwed are provided at one end side.
The other end of the rod member 424 is attached and fixed to the housing 412 and the front plate 417 of the display unit 411 with a screw 425.

According to this embodiment, the same effect as that of the embodiment of FIG. 1 is obtained, and the first packing 442 on the display unit 411 side and the second packing 443 on the plate member 451 side are elastic. Since the structure is such that the display unit 411 is attached to the plate-shaped member 451 with a strong force, the packing 44 is attached.
It is possible to prevent 2, 443 from bending inside or outside the display unit. As a result, even though the display unit 411 is screwed to the plate-shaped member 451, the plate-shaped member 4
The width of 51 can be made sufficiently small, the weight can be reduced, and the air flowability can be improved to prevent the printed wiring board 426 from being overheated. Further, the attachment 444 of the waterproof member 441 has a structure in which the groove 446 is fitted to the packing 443. Therefore, when the display unit 411 is pressed against the plate member 451 with a strong force, the packing 443 is attached.
Can be prevented from coming off.

In the embodiments of FIGS. 1 to 11, a light emitting diode which emits light of red and green and emits light by controlling the balance of the two colors of red and green is used as the display element. , Other display elements, eg red, green, blue 3
Another display element such as a light emitting diode which emits light of a color or a tungsten lamp may be used. Moreover, FIGS.
In the embodiment described above, the outer diameter of the packing is the same as the outer diameter of the front plate, but the outer diameter of the packing may be smaller than the outer diameter of the front plate as long as sufficient strength can be obtained. In the embodiment shown in FIG. 9, the outer diameters of the attachment and the first packing are the same as the outer diameter of the front plate. However, if the strength is sufficient, the outer diameters of the attachment and the first packing should be positive. It may be smaller than the outer diameter of the face plate.

[0067]

According to the present invention, even if the side plates of the adjacent display units are close to each other and the packing is attached, the gap between the front plates of the adjacent display units can be narrowed, so that the adjacent display units are adjacent to each other. The gap between the front plates can be made inconspicuous on the screen, and both high maintainability and high image quality can be achieved.

[Brief description of drawings]

FIG. 1 is a sectional view of essential parts showing an embodiment of a display device according to the present invention.

FIG. 2 is a perspective view of the display device of FIG. 1 with a display unit removed.

FIG. 3 is a front view of the display device of FIG.

4 is an enlarged front view of a display unit attached to the display device of FIG.

5 is a cross-sectional view of the display device of FIG.

FIG. 6 is a cross-sectional view of a main part showing another embodiment of the display device according to the present invention.

FIG. 7 is a cross-sectional view of a main part showing another embodiment of the display device according to the present invention.

FIG. 8 is a cross-sectional view of a main part showing still another embodiment of the display device according to the present invention.

FIG. 9 is an exploded perspective view of a display unit showing an embodiment of the display device according to the present invention.

FIG. 10 is a rear view showing a state in which the display unit of FIG. 9 is attached to the display plate body.

11 is a sectional view showing a state in which the display unit of FIG. 9 is attached to a display plate body.

FIG. 12 is a front view showing a display unit of a conventional display device.

13 is a sectional view showing a display device to which the display unit shown in FIG. 12 is attached.

FIG. 14 is a cross-sectional view showing a conventional display device in which packing is attached to a side plate of a display unit.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 10 Display device 11 Display unit 12 Housing 13 Side plate 14 Step part 15 Fitting part 17 Front plate 18 Light emitting diode 41 Packing 42 Groove part 43 Screw 51 Display plate body 52 Plate member 56 Screw plate

 ─────────────────────────────────────────────────── ─── Continuation of the front page (72) Inventor Takeo Yamaguchi 4-3-1, Higashishinagawa, Shinagawa-ku, Tokyo Inside Toshiba Lighting & Technology Corporation

Claims (5)

[Claims] 1. A display unit in which a plurality of display elements are arranged in a matrix on a front plate, and a peripheral outer diameter of a rear end of a side plate is smaller than that of the front plate; A packing that is formed to be the same as or smaller than the front plate of the display unit, and that is fitted to the rear end of the side plate of the display unit, and a display in which a plurality of the plurality of display units are attached from the rear side. A display device comprising: a plate main body; and a plate-shaped member provided at the position of the display plate main body corresponding to the packing of the display unit and in pressure contact with the packing. 2. A fitting portion is formed by forming a step portion on an outer periphery of an end portion on the rear surface side of the side plate, and a groove portion fitted to the fitting portion is formed in the packing. The display device according to claim 1. 3. A fitting portion is formed by forming a rear end portion of the side plate into a V shape, and a V-shaped groove portion that fits into the fitting portion is formed in the packing. The display device according to claim 1. 4. A display unit in which a plurality of display elements are arranged in a matrix on a front plate, and a peripheral outer diameter of a rear end of a side plate is smaller than that of the front plate. A first packing that is formed to be the same as the front plate of the display unit or smaller than the front plate, and that fits on the rear end of the side plate of the display unit, and a peripheral outer diameter of the front plate of the display unit. A smaller second packing and a peripheral outer diameter that is the same as or smaller than the front plate of the display unit, and is fitted from the back side of the first packing to the inside of the first packing. An attachment in which a first fitting portion to be fitted is formed on the front surface side, and a second fitting portion which is fitted to the front surface side of the second packing is formed on the back surface side, and a plurality of the display units. From the back side A display device comprising: a plurality of display plate main bodies to be attached; and a plate-like member provided at the position of the display plate main body corresponding to the second packing of the display unit and in pressure contact with the second packing. . 5. The display device according to claim 4, wherein the second fitting portion is formed by forming a groove portion on the back surface side of the attachment.