JP2000330481A - Display device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To prevent the deformation in the peripheral part of the superposed portions of the flanks of front and rear surface frames when these frames are screwed in the superposed portions described above. SOLUTION: This display device has a display device body which has threaded holes in at least one flanks and the front surface frame and rear surface frame which has the flanks 15 and 16 existing on the front surface side and rear surface side of this body and overlapping on each other in the positions facing the flanks and are formed with holes 17 and 18 for penetration of screws in correspondence to the threaded holes on these flanks. The threaded holes are formed in screw receiving members mounted at the body. The screw receiving members are mounted freely movably at spacings (having allowance t1 for play) of about the same extent as the insertion allowance t2 formed between the flanks of the body and the front surface frame or rear surface frame facing the same.

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 screw receiver on a side surface.

[0002]

2. Description of the Related Art In a thin display device such as a liquid crystal display device, a metal frame is mounted on a surface side of a display device main body in order to prevent EMI and increase rigidity (see, for example, Japanese Patent Application Laid-Open No. H08-208,878). Publication No. -148011). FIG. 9 is a view showing the vicinity of a screw receiver for mounting an external device of a liquid crystal display device having a metal frame on the front surface and a metal frame on the rear surface as described above, in a direction parallel to the display surface. It is principal part sectional drawing. With reference to FIG. 9, a conventional structure will be briefly described. Each of the side surfaces 100 and 200 of the metal front frame and the rear frame arranged on the front side and the rear side of the liquid crystal display device is formed of a resin middle frame 3.
00 side by side. On the side surface of the resin middle frame 300, a metal screw receiver 400 is integrally incorporated. Through holes 500 are formed on the side surfaces 100 and 200 of the front and rear frames in correspondence with the screw receivers 400. The side surface 200 of the rear frame is arranged to be inserted between the front frame side surface 100 and the middle frame 300. The hole 70 formed in the side surface 600 of the external device or the mounting bracket is formed.
The liquid crystal display device is attached to the external device or the mounting bracket by screwing the mounting screw 800 so that 0 and the screw receiver 400 correspond to each other.

[0003]

As described above, in order to improve the workability when inserting the side surface 200 of the rear frame between the side surface 100 of the front frame and the middle frame 300, the side surface 1 of the front frame is required.
It is desirable to secure a certain amount of insertion allowance between 00 and the middle frame 300 in addition to the thickness of the rear frame side surface 200. However, in the conventional structure, the screw receiver 400 is
When the insertion margin is increased, the side surfaces 100 and 200 of the front and rear frames and the middle frame 3 are fixed when the insertion margin is increased.
00 is deformed so as to eliminate the insertion allowance therebetween. Then, this deformation may adversely affect the appearance and display of the display device. Therefore, the present invention has been made in consideration of these points, and has an object to prevent deformation of a frame when a screw is inserted into a screw receiver.

[0004]

According to a first aspect of the present invention, there is provided a display device which supports a main portion of the display device and has a screw hole on at least one side surface, A front frame and a rear frame having side surfaces that are located on the front side and the rear side and overlap with each other at a position facing the side surface, and having a hole for screw penetration formed in these side surfaces in correspondence with the screw holes. A display device comprising:
The screw hole is formed in a screw receiving member movably mounted on the middle frame.

A display device according to the present invention is characterized in that a display device main body having a screw hole on at least one side surface, and a position located on the front side and the rear side of the main body and facing the side surface. A display device comprising a front frame and a rear frame having side surfaces overlapping with each other and having a hole for screw penetration formed in these side surfaces corresponding to the screw holes, wherein the screw holes are provided in the main body. And the screw receiving member moves about the same amount as an insertion margin formed between the side surface of the main body and the side surface of the front frame or the rear frame facing the main body. It is characterized by being freely mounted.

[0006]

BEST MODE FOR CARRYING OUT THE INVENTION Hereinafter, embodiments of the present invention will be described.
This will be described with reference to the drawings. FIG. 1 is a partially exploded perspective view of a liquid crystal display device according to an embodiment of the present invention in a state where the liquid crystal display device is turned upside down, and FIGS. 2 and 3 are enlarged views of portions A and B in FIG.
FIG. 5 is a longitudinal sectional view and a transverse sectional view along the screw receiving member 11 of FIG. 2, and FIGS. 6A and 6B are perspective views of the screw receiving member 11 as viewed from the front and back.

The display device 1 has a metal front frame 3 mounted on the front side of a display device main body 2 constituting a main part thereof, and a metal rear frame 4 mounted on the rear side. The front frame 3 covers the entire front surface of the display device main body 2 except for the display window in a frame shape.
The rear frame 4 can cover the entire rear surface of the display device main body 2, but in this example, it covers a part of the display device main body 2 so as to cover a drive circuit 7 described later. Display device body 2
Is a liquid crystal display panel 6 in a synthetic resin middle frame 5.
(See FIG. 4) and its driving circuits 7, 8 and backlight unit 9 are positioned and held. When the display panel 6 is a reflection type or the like and does not require a backlight, the display panel 6 and the driving circuits 7 and 8 may be held by the middle frame 5.

A plurality of screw holes 10 are formed on both sides of the display device body 2, that is, on the side surfaces of the middle frame 5 so as to form a pair on the left and right. The screw hole 10 is formed by incorporating a metal screw receiving member 11 into the middle frame 5.
As shown in FIG. 6, the screw receiving member 11 is provided with a pair of split pin-shaped cylindrical pieces 13, 13 integrally with the head 12 by cutting out a part of a cylindrical female screw with a head. It has a shape. The pair of cylindrical pieces 13 and 13 can be elastically deformed, and a hook 14 for retaining the body is integrally formed at the tip. As shown in FIG. 5, the screw receiving member 11 is inserted into the hole formed in the inner frame 5 by elastically deforming the cylindrical pieces 13, 13. Is installed by inserting until it returns to its original state. Here, the length of the screw receiving member 11 from the head 12 to the hook 14 is set so as to secure a play allowance t1 such that the screw receiving member 11 can slightly move in the screw mounting direction. The play allowance t1 is set to the same length as an insertion allowance t2 described later.

A side surface 15 is formed on the front frame 3 so as to cover four side surfaces of the display device main body 2.
A pair of side surfaces 16 on its short side and one side surface 16 on its long side,
It is formed so as to overlap with the side surface 15 of the front frame 3. On these side surfaces, through holes 17 and 18 for screw insertion are formed corresponding to the screw holes 10.

Next, the assembly of the display device 1 having the above configuration will be described. The backlight unit 9 is positioned on the middle frame 5, and the display panel 6 to which the drive circuits 7 and 8 have been connected is positioned and arranged thereon. The drive circuits 7 and 8 are arranged so as to be bent toward the rear surface side of the middle frame 5. Then, the front frame 3 is mounted from above the display panel 6. The display device main body 2 and the front frame 3 are fixed by folding and locking the fixing bending pieces 19 formed on the side surfaces 15 of the front frame 3 at predetermined positions of the middle frame 5 (see FIGS. 2 and 3). ).

Next, this is turned upside down as shown in FIG. 1, and the rear frame 4 is mounted. The rear frame has its side 16
Is placed at a predetermined position by inserting it between the middle frame 5 and the front frame side surface 15.
A gap between the thickness of the side surface 16 of the rear frame 4 and the insertion allowance (distance t2) is secured between the rear frame 4 and the front frame side surface 15. The rear frame 4 is fixed to the display device main body 2 by inserting the side surface 16 into the gap and arranging the rear frame 4 at a predetermined position, and then tightening a plurality of screws 20. Here, as shown in FIGS. 2 and 3, by tightening the screws 20 for fixing the both sides of the rear frame 4, a pattern 2 for the ground (ground) potential of the rear frame 4 and the drive circuit 7 located thereunder is formed.
1 are electrically connected, and the rear frame 4 is connected to the ground potential.

The display device 1 is assembled as described above, and this device is used by being incorporated in an external device such as a personal computer. At the time of assembling, as shown in FIGS. 7 and 8, a hole 23 provided on a predetermined surface of an external device or a mounting surface 22 of an external device mounting device or the like is provided.
The screw receiving member 11 is arranged correspondingly. As shown in the figure, a screw 24 is provided in the through hole 23 of the mounting surface 22 and the through holes 1 provided in the side surfaces 15 and 16 of the front and rear frames.
It is screwed into the screw hole of the screw receiving member 11 via 7, 18. Due to this screwing, a force is applied to the screw receiving member 11 in the direction opposite to the insertion direction of the screw 24, so that the screw receiving member 11 closes the insertion margin t2 so that the side surfaces 15, 16 of the frame are closed.
Move in the direction. Here, when the head 12 of the screw receiving member 11 has moved to such an extent that it comes into contact with the side surface 16 of the rear frame 4,
The catch 14 hits the middle frame 5 to restrict its movement. Here, the screw receiving member 11 can be freely moved in the screw insertion direction, but its rotation is prohibited due to the presence of the upper and lower cutout surfaces. Thus, the middle frame 5 and the front frame side 1
The screw receiving member 11 moves in the direction opposite to the insertion direction of the screw 24 while keeping the distance between the middle frame 5 and the rear frame side surface 16 constant.
2, the insertion margin t2 can be closed by the movement of the screw receiving member 11. As a result, the insertion allowance t2
Is provided, almost no deformation of the middle frame 5 and the front and back frames 3 and 4 due to the tightening of the screw 24 can be achieved.

Then, the front frame 3 and the rear frame 4 are electrically connected at the side portions thereof by tightening the screws 24, so that the rear frame 4 and the front frame 3 are held at the ground potential of the drive circuit 7. . The front surface frame 3 and the rear surface frame 4 held at the ground potential function as electromagnetic shields, and absorb noise generated in the drive circuits 7, 8, and the like. As a result, EMI countermeasures can be strengthened with a relatively simple configuration.

In the above-described embodiment, the case where a part of the rear frame 4 is inserted between the middle frame 5 and the front frame 3 is shown. The present invention can also be applied to a case where a part of the front frame 4 is inserted and arranged. Further, although the frames 3 and 4 on the front and rear surfaces are made of metal, the present invention can be applied to a case where the frames 3 and 4 are made of other members such as a resin frame.

[0015]

As described above, the display device of the present invention can prevent the deformation of the periphery of the screw receiving member and the frame when the screw is mounted on the screw receiving member, and can improve the appearance and display state of the display device. Can be kept good.

[Brief description of the drawings]

FIG. 1 is a partially exploded perspective view of a liquid crystal display device according to an embodiment of the present invention in a state where the liquid crystal display device is turned upside down.

FIG. 2 is an enlarged view of a portion A in FIG.

FIG. 3 is an enlarged view of a portion B in FIG. 1;

FIG. 4 is a longitudinal sectional view taken along a screw hole 10 of FIG. 2;

FIG. 5 is a cross-sectional view taken along a screw hole 10 of FIG. 2;

FIG. 6 is a perspective view of the front (A) and the back (B) of the screw receiving member 11;

FIG. 7 is a longitudinal sectional view corresponding to FIG. 4 and showing a mounted state of a screw 24;

FIG. 8 is a cross-sectional view corresponding to FIG.

FIG. 9 is a cross-sectional view showing a conventional example.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Display apparatus 2 Display apparatus main body 3 Front frame 4 Rear frame 5 Middle frame 10 Screw hole 11 Screw receiving member 15 Side surface 16 Side surface 24 Screw

Claims (2)

[Claims] 1. A middle frame that supports a main part of a display device and has a screw hole on at least one side surface, and overlaps with each other at a position on the front side and the rear side of the main part and facing the side surface. A display device having side surfaces, and a front frame and a rear frame formed with holes for screw penetration corresponding to the screw holes on the side surfaces, wherein the screw holes are movable to the middle frame. A display device formed on a screw receiving member mounted on the display device. 2. A display device main body having a screw hole on at least one side surface, and a side surface located on a front side and a rear side of the main body and overlapping each other at a position facing the side surface. A display device comprising a front frame and a rear frame formed with holes for screw penetration corresponding to the screw holes, wherein the screw holes are formed in a screw receiving member attached to the main body. A display device, wherein the screw receiving member is mounted so as to be movable as much as an insertion margin formed between the side surface of the main body and the side surface of the front frame or the rear frame facing the main body. .