JPH0522950Y2 - - Google Patents

Description

[Detailed Description of the Invention] [Industrial Field of Application] The present invention relates to a structure of a housing of a display device in which the display on the display panel is made to stand out by back lighting.

[Conventional technology]

Conventionally, a display device that uses back lighting to make the display on a display panel stand out has, for example, a second
It is configured as shown in the figure.

The display device 1 includes a housing 2 formed by sheet metal processing into a box shape with a substantially open front end surface, a flat display panel 3 such as a liquid crystal cell attached to the open front end surface of the housing 2, and a housing. The display panel 3 is composed of a plurality of light source lamps 4 attached to the rear end surface of the inside of the housing 2, and as shown in FIG. It is fixed by a frame 5 which is formed to hold against the peripheral area of. In the illustrated case, the frame 5 is fixed by screwing mounting portions 5a projecting on both sides thereof to mounting portions 2f projecting on both sides of the front end surface of the housing 2.

Then, the display device is attached to the main body of the device using screw holes formed in each of the attachment portions 2f and 5a.

[The problem that the idea attempts to solve]

Here, the housing 2 has portions 2b extending outward from the four sides of the rear end surface 2a,
By bending 2c, 2d, and 2e forward, upper, lower, left, and right walls are formed (see FIG. 2B).

However, in such a display device 1, since the housing 1 is formed by bending the upper, lower, left, and right walls of the housing 1 forward with respect to the rear end surface by sheet metal processing, the wall portions 2b, 2
Among the side walls 2c, 2d, and 2e, when the side walls 2c, 2e are formed by two-stage bending as in the illustrated case, the side walls 2c, 2e are bent as shown by the arrows by so-called spring back. It spreads outward.

Therefore, a gap is created between each wall and the adjacent wall, and light from the light source lamp 4 disposed near the rear end surface of the housing 2 leaks to the outside through the gap. This will result in

In view of the above points, the present invention prevents springback of each wall part due to sheet metal processing.
It is an object of the present invention to provide a housing for a display device that prevents light from leaking from a light source.

[Means to solve the problem]

The above object, according to the present invention, includes a housing formed by sheet metal processing into a box shape with a substantially open front end surface, and a flat display panel such as a liquid crystal cell attached to the open front end surface of the housing. , and a light source disposed in a rear region within the housing, and the display device includes a light source disposed in a rear region within the housing, and the light from the light source back-illuminates the display panel from the rear. By bending the portions extending outward from the four sides forward, upper, lower, left, and right walls are formed, and at least one of these walls is in contact with the adjacent walls on both sides. This is achieved by providing a protrusion that is bent so as to abut the adjacent wall portion from the outside.

[Effect]

According to this invention, protrusions are provided on both sides of one wall, and the protrusions are bent and abut against the outer surfaces of two walls adjacent to the one wall, thereby allowing the two walls to be connected to each other. Since the two walls are locked together, the two walls do not expand outward due to so-called spring back, and therefore a gap is created between each wall and the wall adjacent to it. There is no such thing.

Therefore, light from, for example, a light source lamp disposed near the rear end surface does not leak to the outside through the spaces between the walls.

Moreover, since the protrusion that locks adjacent wall parts is formed to protrude from at least one wall part of the housing as described above, it can be formed at the same time as the sheet metal processing of this housing. There is no need for additional steps to form the protrusion, and therefore manufacturing and assembly costs can be kept low.

〔Example〕

Hereinafter, the present invention will be described in detail based on an embodiment shown in the drawings.

FIG. 1 shows an embodiment of a display device according to the present invention, and this display device 10 includes a housing 11 formed by sheet metal processing into a box shape with a substantially open front end surface, and an open front end surface of the housing 11. The display panel 12 includes a flat display panel 12 such as a liquid crystal cell attached to the front end surface thereof, and a plurality of light source lamps 13 attached to the rear end surface inside the housing 11.

The above structure is the same as that of the conventional display device housing 1 shown in FIG. 11a
Projections 14 and 15 extending outward beyond the walls 11b and 11c on both sides of the housing 11 are integrally formed on the upper wall 11a on both sides near the front end of the housing 11.

The projections 14, 15 are partially bent downward, in the illustrated case, at their rear regions, to form engagement portions 14a, 15a. The engagement portions 14a, 15a are fitted at their inner edges to the wall portions 11b, 11c of the housing 11.
11c.

The display device 10 according to the present invention is constructed as described above, and is provided by bending the rear regions of the two protrusions 14 and 15 on both sides of the upper wall portion 11a of the housing 11 downward. The inner edges of the stop portions 14a and 15a are connected to the housing 11.
By contacting the outer surfaces of both side walls 11b and 11c, the spring back caused by the bending of the side walls 11b and 11c due to sheet metal processing,
This means that any attempt to spread outwards can be reliably prevented.

In addition, when attaching the display device 10 formed in this way to a device main body, each of the above-mentioned protrusions 14,
The device can be fixed to the main body of the device by screwing through screw holes 14b and 15b formed in the 15 locking portions 14a and 15a.

[Effect of idea]

As described above, according to the present invention, protrusions are provided on both sides of one wall, and the protrusions are bent and come into contact with the outer surfaces of the two side walls, so that the two walls are separated. The locking prevents the two walls from expanding outwards due to so-called spring back.

Therefore, there is no gap between each wall and the wall adjacent to it, and there is no gap between each wall and the wall adjacent to it.

Therefore, for example, light from a light source lamp or the like disposed near the rear end surface does not leak outside through the spaces between the walls, and as described above, the adjacent walls are locked together. Since the protrusion is formed to protrude from at least one wall of the housing, it can be formed at the same time as the sheet metal processing of the housing, so there is no need to increase the number of steps required to form the protrusion. Therefore, manufacturing and assembly costs can be kept low.

Thus, according to the present invention, by preventing the spring back of each wall portion due to sheet metal processing,
An extremely excellent housing for a display device is provided that prevents light from leaking from a light source.

[Brief explanation of the drawing]

FIG. 1 shows an embodiment of a display device according to the present invention; A is a plan view, B is a front view, C is a side view, and D is a schematic perspective view. FIG. 2 shows an example of a conventional display device, in which A is an exploded perspective view thereof and B is a schematic perspective view showing an assembled state. 10...Display device, 11...Housing, 12
...Display panel, 13...Light source lamp, 14,1
5...Protrusion part, 14a, 15a...Locking part.

Claims (1)

[Claims for Utility Model Registration] A housing formed by sheet metal processing into a box-like shape with a substantially open front end, a flat display panel such as a liquid crystal cell attached to the open front end of the housing, and a light source disposed in a rear region within the housing, the display device comprising: a light source disposed in a rear region within the housing, the light from the light source backlighting the display panel from the rear; By bending the portions extending outward from the four sides forward, upper, lower, left, and right walls are formed, and at least one of the walls is bent toward the adjacent walls on both sides. A housing for a display device, comprising a protruding portion bent so as to abut the adjacent wall portion from the outside.