JPH11190974A - Display device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To make adjustable the position of a display panel even after it is built in a device case. SOLUTION: The display device is constituted by fixing the display panel 2 to a fitting base 1, which is provided with a screw reception part 10 facing two adjacent sides of the display panel 2 and with a spring reception part 11 opposite the other two sides. Here, the display panel 2 is energized toward the screw reception part 10 by a leaf spring 3 interposed between the spring reception part 11 and the side edge of the display panel 2, an adjusting screw 4 whose tip abuts against both the ends of each opposite side edge of the display panel 2 is screwed to the screw reception part 10 in a freely movable state, and this adjusting screw 4 is operated to change the mount position of the display panel 2.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

2. Description of the Related Art When manufacturing a display device by fixing a display panel such as a liquid crystal panel to a device housing such as a cover, the display area of the display panel is accurately positioned on a display window opened in the device housing. There is a need. On the other hand, since the display area of the display panel has variations due to manufacturing errors, it cannot be accurately known unless it is turned on. For this reason, when a display deviation is found in a lighting test performed after the display device is assembled to the device housing, there is a problem that the display device needs to be reassembled.

[0002]

SUMMARY OF THE INVENTION The present invention has been made to solve the above-mentioned drawbacks, and an object of the present invention is to provide a display device capable of adjusting the position of a display panel even after the display panel is assembled to a device housing. .

[0003]

According to the present invention, there is provided a display device comprising a mounting base and a display panel fixed to the mounting base. A screw receiving portion 10 facing the side is provided, and a spring receiving portion 11 is provided facing the other two sides. The display panel 2 includes the spring receiving portion 11 and the display panel 2.
Screw receiving part 1 by a leaf spring 3 interposed between the
An adjustment screw 4, which is urged toward the zero side and whose leading end abuts on each end of each corresponding edge of the display panel 2, is screwed into the screw receiving portion 10 so as to freely advance and retreat. This is achieved by providing a display device in which the mounting position of the display panel 2 can be changed.

In the present invention, the tip 40 of the adjusting screw 4 is in contact with two adjacent sides of the display panel 2, and the other two sides are in contact with each other.
It is pressed by the reaction force of the leaf spring 3 applied to the side and stops at a predetermined position. If the display area does not match the display window 80 of the device housing 8 in the lighting test after assembly to the device housing 8, the adjustment screw 4 is moved forward and backward with respect to the screw receiving portion 10 to adjust the position of the display panel 2. Can be adjusted. The adjusting screws 4 are arranged corresponding to both ends of each edge, and
Since the adjustment screw 4 is not screwed into the edge of the display panel 2 but just abuts on the tip 40, it is possible to adjust the rotation direction by making a difference in the adjustment amount of the adjustment screw 4 at both ends as well as the parallel movement. Can also be done easily.

Therefore, in the present invention, it is possible to easily adjust the rotation direction in addition to the adjustment in the parallel direction with a simple configuration. The invention according to claim 2 is
A movable body 5 movable along a guide 12 of the mounting base 1; and a display panel 2 stacked on the movable body 5 so as to be movable in a direction intersecting the moving direction of the movable body 5,
The movable body 5 is provided with a rack 50 that meshes with the first pinion 6 mounted on the mounting base 1, and the display panel 2 is mounted on the movable body 5 in the vicinity of the first pinion 6. The display device is provided with a rack 20 that meshes with the pinion 7 and can change the mounting position of the display panel 2 by operating the first and second pinions 6 and 7.

In the present invention, the movable body 5 and the display panel 2 are mounted on the mounting base 1 in a stacked state. The display panel 2 is movable on the movable body 5. The movable body 5 has a rack 50 that meshes with the first pinion 6 mounted on the mounting base 1, and the display panel 2 is mounted on the movable body 5. Rack 20 meshing with the second pinion 7
Is provided.

Therefore, in the present invention, the position of the display panel 2 can be easily adjusted only by operating the first and second pinions 6 and 7. Further, since the first and second pinions 6 and 7 are arranged in the vicinity, the vertical and horizontal positions can be changed by operating one place, so that the operability is improved.

[0008]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS As shown in FIGS. 1 and 2, a display device is formed by fixing a display panel 2 such as a liquid crystal panel or a plasma display panel to a device housing 8. Device housing 8
Is formed by connecting upper and lower covers 81 and 82, and a display window 80 having a size substantially matching the display area of the display panel 2 is opened in the upper cover 81.

Reference numeral 21 denotes a mounting tray for fixing the display panel 2 to the apparatus housing 8, which is formed in a rectangular tray shape with rising walls on four sides. An adjusting screw 4 is screwed to two adjacent sides (screw receiving portions 10) of the rising wall so as to be able to advance and retreat. When the mounting base 1 is formed of sheet metal, as shown in FIG. 2B, a burring process is performed on the rising wall, and a screw hole 10a for screwing the adjusting screw 4 is formed. Two adjusting screws 4 are mounted on both ends of each rising wall. Further, a rising wall (spring receiving portion 1) facing the rising wall on which the adjusting screw 4 is mounted.
A leaf spring 3 is arranged between 1) and the edge of the display panel 2. The leaf spring 3 has a U-shape, and one end is fixed to a rising wall of the mounting base 1 by an appropriate means such as spot welding. Each leaf spring 3 is arranged at the center of each edge.

As shown in FIG. 2A, the sub-assembly constructed as described above has a tray 21 for mounting.
Is fixed to the lower cover 82 serving as the mounting base 1 by fastening the bottom wall. Although FIG. 2A shows a case where the mounting tray 21 is fixed to the lower cover 82,
When fixing to the upper cover 81, as shown by a chain line in FIG. 1, a mounting piece 22 may be extended at the upper end of the rising wall, and the mounting piece 22 may be fixed to the upper cover 81.

When the display panel 2 is mounted on the housing 8, the display panel 2 is urged toward the adjusting screw 4 by the elastic restoring force of the leaf spring 3, and the side wall is sandwiched between the tip end 40 of the adjusting screw 4 and the leaf spring 3. It is held in a predetermined posture in the state of being moved. A lighting test is performed in this state, and when the display area of the display panel 2 is displaced from the display window 80 of the upper cover 81, the position of the display panel 2 can be adjusted by adjusting the adjustment screw 4. As shown in FIG. 3A, when the adjustment amount of the adjustment screw 4 on each side is made the same, the adjustment in the parallel movement direction is possible, and as shown in FIG. If the adjustment amount of the adjustment screw 4 is made different, adjustment in the rotation direction can be performed. Note that the adjustment work can be performed once by separating the upper cover 81 and the lower cover 82. However, as shown in FIG. 2, the head 41 of the adjustment screw 4 can be seen through the upper cover 81 or the lower cover 82. When the through holes 83 are formed, the adjustment can be performed without separating the upper and lower covers 81 and 82, which is convenient. FIG. 1 shows a case where the side wall of the display panel 2 is directly sandwiched between the leaf spring 3 and the tip end 40 of the shaft portion of the adjusting screw 4. However, as shown in FIG. , And the side wall of the auxiliary plate 23 can be sandwiched by the leaf spring 3 and the adjustment screw 4, so that no load is applied to the display panel 2.

FIG. 2 shows another modification of the present embodiment. In the description of this modified example and other embodiments described below, components that are substantially the same as those of the above-described embodiments are given the same reference numerals in the drawings, and descriptions thereof will be omitted. In this modification, the display panel 2 is fixed on the auxiliary plate 23. The control board of the display panel 2 and the like are accommodated in the auxiliary plate 23. The auxiliary plate 23 is placed on the lower cover 82, and the leaf spring 3 is screwed between the inner wall surface of the lower cover 82 and the auxiliary plate 23, and the adjustment screw 4 is screwed on the wall surface of the lower cover 82. FIG. 5B shows a case where the wall surface of the lower cover 82 is used as it is as the screw receiving portion 10 and the spring receiving portion 11.
As shown in (c), one or both of the screw receiving portion 10 and the spring receiving portion 11 can be separately formed on the back surface of the lower cover 82.

FIG. 6 shows a second embodiment of the present invention.
In this embodiment, the display panel 2 is fixed on the auxiliary plate 23 and is held on the movable body 5 placed on the lower cover 82. The moving direction of the movable body 5 is regulated by fitting a guide groove 51 provided on the back surface of the movable body 5 into a rail-shaped guide projecting from the lower cover 82. Is biased in a movable direction by a coil spring 52 fixed to the movable member. A rack 50 is formed at one corner of the movable body 5, and a lower cover 82 is provided.
The first pinion 6 is rotatably supported by the first pinion 6.

Further, a guide groove 51 is provided on the upper surface of the movable body 5.
The guide rail 53 is formed so as to be orthogonal to the guide plate 23, and is fitted into the guide groove 23 a of the
3 is restricted. The auxiliary plate 23 is a movable body 5
A rack 20 is provided at one corner corresponding to the corner at which the rack 50 is formed, and meshes with the second pinion 7 rotatably supported on the movable body 5. Further, the movable body 5 and the auxiliary plate 23 are connected via a coil spring 53.

Therefore, in this embodiment, the first
When the pinion 6 is operated, the movable body 5 moves along the guide 12 of the lower cover 82, and when the second pinion 7 is operated, the auxiliary plate 23 moves along the guide 53 of the movable body 5, The position can be adjusted.

In FIG. 6, coil springs 52, 53 are used to prevent backlash between the racks 20, 50 and the pinion due to backlash.
As shown in FIG. 7, a leaf spring 3 can be used.
Although FIGS. 6 and 7 show the case where the racks 20 and 50 are formed directly on the movable body 5 and the side walls of the auxiliary plate 23, they can be formed separately. In this case, the first and second
Since the positions of the pinions 6 and 7 are not regulated, the pinions 6 and 7 can be stacked one above the other. When a part of these is exposed from the lower cover 82 or the upper cover 81, adjustment from outside the housing 8 can be performed. Will be possible.

[0017]

As is apparent from the above description, according to the present invention, since the displacement of the display panel can be adjusted with a simple structure, the manufacturing efficiency can be improved.

[Brief description of the drawings]

FIG. 1 is a diagram showing the present invention.

FIGS. 2A and 2B are cross-sectional views of the display device, in which FIG. 2A shows a state in which the display panel is fixed to a lower cover, FIG. 2B is an enlarged view of the vicinity of an adjustment screw in FIG. FIG. 5 is a cross-sectional view showing a state in which is fixed to an upper cover.

3A and 3B are diagrams illustrating an adjustment state of a display panel, wherein FIG. 3A is a diagram illustrating a state where adjustment is performed in a parallel direction, and FIG. 3B is a diagram illustrating a state where adjustment is performed in a rotation direction.

FIG. 4 is a diagram showing a modification of FIG. 1;

5A and 5B are diagrams showing another modification of FIG. 1, wherein FIG. 5A shows a state in which the display panel is mounted on a lower cover, FIG. 5B is a sectional view of FIG. It is sectional drawing which shows the modification of ().

FIG. 6 is a diagram showing a second embodiment of the present invention.

FIG. 7 is a diagram showing a modification of FIG. 6;

[Description of Signs] 1 Mounting base 10 Screw receiving part 11 Spring receiving part 12 Guide 2 Display panel 20 Rack 3 Leaf spring 4 Adjusting screw 5 Movable body 50 Rack 6 First pinion 7 Second pinion

Claims (2)

[Claims] 1. A display device comprising a display panel fixed to a mounting base, wherein the mounting base is provided with a screw receiving portion facing two adjacent sides of the display panel, and a screw receiving portion is provided on the other two sides. A spring receiving portion is provided so as to face the display panel, and the display panel is urged toward the screw receiving portion by a leaf spring interposed between the spring receiving portion and an edge of the display panel. A display device in which an adjusting screw whose tip is in contact with both ends of each corresponding edge of the display panel is screwed forward and backward freely, and a mounting position of the display panel can be changed by operating the adjusting screw. 2. A movable body movable along a guide of a mounting base, and a display panel stacked on the movable body so as to be movable in a direction intersecting a moving direction of the movable body. A rack that meshes with the first pinion mounted on the mounting base is provided, and a rack that meshes with the second pinion mounted on the movable body near the first pinion is provided on the display panel; A display device capable of changing a mounting position of a display panel by operating a first and a second pinion.