JPH11160686A - Display device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To prevent a display device from breakage, etc., and also to reduce its thickness and weight. SOLUTION: Since a display panel 2 is coupled to a stand part 3 by elastic coupling members 21, an impact from the stand part 3 is attenuated by the elastic coupling member 21 and hardly transmits to the liquid crystal panel P even if the stand part 3 is shocked by dropping the device on the floor. Thus, the orientation of the liquid crystal can be prevented from failure and also the liquid crystal panel P can be prevented from breakage. Moreover, since an impact and other stresses can be absorbed by the coupling members 21, it is not necessary to increase the plate of a main frame 5 in thickness, the display part 2 can be reduced in thickness and the weight is reduced by that amount.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a display device for displaying various information on a display unit, and more particularly to a structure of a connecting portion between the display unit and a stand supporting the display unit.

[0002]

2. Description of the Related Art Hitherto, various structures have been proposed as display devices for displaying various information.

FIG. 1 is a view showing an example of the structure of a conventional display device. This display device 1 has a display section 2 for displaying various information, and a stand for supporting the display section 2 movably. And a unit 3.

FIG. 2 is an exploded perspective view showing the detailed structure of the display unit 2. The display unit 2 is provided with a liquid crystal panel P for displaying various information and a rear surface of the liquid crystal panel P. A backlight device B for irradiating the liquid crystal panel P with light,
The liquid crystal panel P and the backlight device B are fixed to the main frame 5 with screws or the like (not shown). Note that the liquid crystal panel P is configured by sandwiching liquid crystal between a pair of substrates.

A front cover C1 is attached to the main frame 5 by four screws 6 (FIG. 2).
(c)), the front side of the liquid crystal panel P is protected by the front cover C1. Further, a back cover C2 is attached to the back side of the main frame 5.

Reference numeral 7 in FIG. 2 denotes a circuit board for driving the liquid crystal panel P and the backlight device B.

The stand 3 has a hinge 3a, and the hinge 3a has the main frame 5a.
Are attached by screws 9, whereby the display unit 2 is movably supported by the stand unit 3.

[0008]

By the way, in the display device 1 described above, the display unit 2 and the stand unit 3 are connected with the screws 9.
The main frame 5
There were various problems when the plate thickness was reduced. That is, when the display device 1 is dropped on the floor or the like, the impact from the stand unit 3 is transmitted to the display unit 2, but if the main frame 5 is thin, the liquid crystal panel P is damaged or the alignment unevenness of the liquid crystal is reduced. Or could occur. When the display unit 2 is rotated by applying an excessive force to the display unit 2 in order to adjust the attitude (inclination angle) of the display unit 2 when the display device 1 is used, the thickness of the main frame 5 is reduced. If it is thin, an excessive force is transmitted to the liquid crystal panel P, and similarly, there is a problem that the liquid crystal panel P is damaged or alignment unevenness of the liquid crystal occurs.

Therefore, in order to avoid such a problem, it is necessary to increase the thickness of the main frame 5 to some extent, and there is a limit in reducing the thickness and weight of the display unit 2.

A display device 10 shown in FIG. 3 solves such a problem. In the display device 10, at least the back cover C2 is formed of an elastic resin, and the stand 3 is provided with the back cover C2.
It is connected to.

In the case of the display device 10, the impact applied to the stand portion 3 due to a drop or the like is absorbed by the back cover C2, and the above-mentioned problem is solved. However, another new problem arises.

That is, in order to incorporate a power supply circuit and the like in the stand portion 3 and reduce radiation noise, it is necessary to use a conductive member for the stand portion 3 and to conduct the member to the main frame 5. However, the display device 10 has a problem in that radiation noise is generated because the stand portion 3 and the main frame 5 are not electrically connected. In addition, a separate conductive member is required to achieve these conductions.
Since the relative position changes, the conductive member attached between them has a complicated structure, and there is a problem that the cost is increased accordingly.

Accordingly, an object of the present invention is to provide a display device that reduces the transmission of an impact and an extra force to a display unit.

Another object of the present invention is to provide a display device for preventing a display unit from being damaged.

Still another object of the present invention is to provide a display device capable of reducing the thickness and weight of the display unit.

Still another object of the present invention is to provide a display device capable of avoiding defective alignment of liquid crystal, breakage of a liquid crystal panel, and the like.

Another object of the present invention is to provide a display device capable of reducing radiation noise.

[0018]

SUMMARY OF THE INVENTION The present invention has been made in view of the above circumstances, and is directed to a display device having a display unit for displaying various information and a stand unit for supporting the display unit. The display unit and the stand unit are connected by a connecting member having conductivity and elasticity.

In this case, it is preferable that a portion of the display unit to which the connecting member is connected and a portion of the stand unit to which the connecting member is connected are formed of conductive members.

[0020]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Referring to FIGS.
An embodiment of the present invention will be described. Note that the same parts as those shown in FIG.

FIG. 4 is a diagram showing one embodiment of the structure of the display device according to the present invention. The display device 20 shown in FIG.
Comprises a display unit 2 for displaying various information, and a stand unit 3 for supporting the display unit 2. The display unit 2 and the stand unit 3 are connected to each other by a conductive and elastic connecting member. It is connected by.

As the connecting member, any material having conductivity and elasticity may be used. For example, as shown in FIG.
And a coil spring 22 shown in FIG.
May be used.

The portion of the display unit 2 where the connecting members 21 and 22 are connected and the portion of the stand unit 3 where the connecting members 21 and 22 are connected are formed of conductive members. It is preferable to do so. For example, the display unit 2 includes a liquid crystal panel P configured to sandwich liquid crystal between a pair of substrates, and a conductive frame member 5 to which the liquid crystal panel P is attached, and the connecting member 21 and 22 may be connected to the frame member. In this case, the liquid crystal is
Liquid crystal exhibiting a ferroelectric state may be used.

Next, the operation and effect of this embodiment will be described.

According to the present embodiment, since the impact from the stand 3 is attenuated by the elastic connecting members 21 and 22, it is hardly transmitted to the display 2, and the
There is no breakage. Also, even when an excessive force is applied to grasp and rotate the display unit 2,
The extra force is absorbed by the deformation of the connecting members 21 and 22 and is hardly applied to the display unit 2 and the display unit 2 is not damaged. Further, since the impact and the extra force can be absorbed by the connecting members 21 and 22 as described above, the thickness of the frame member 5 can be reduced, and the display unit 2 can be reduced in thickness and weight.

Even when the display section 2 is constituted by a liquid crystal panel P or the like in which liquid crystal is sandwiched between a pair of substrates, almost no impact or extra force is applied to the liquid crystal panel P. In addition, it is possible to avoid poor alignment of the liquid crystal, breakage of the liquid crystal panel P, and the like. Such an effect is remarkable when a liquid crystal exhibiting a ferroelectric state is used as the liquid crystal.

On the other hand, the chassis potential (GND) of the stand unit 3 and the display unit 2 by the connecting members 21 and 22 described above.
Can be shared, so that radiation noise can be reduced. In addition, since the connecting members 21 and 22 are arranged at the connecting portion between the display unit 2 and the stand unit 3, they are hardly affected by a change in their relative positions. Therefore, the connecting member 2
1 and 22 can have a simple structure, and cost increase can be minimized.

[0028]

(Embodiment 1) The display unit 2 in this embodiment is
As shown in FIG. 4, a liquid crystal panel P and a conductive main frame (frame member) 5 to which the liquid crystal panel P is attached are provided. A leaf spring (connecting member) 21 made of a material having elasticity and conductivity is attached to the rear side of the main frame 5 so as to swell toward the stand 3. The spring 21 and the hinge portion 3a are connected by the plate member 25 and the screw 9. The stand 3 is made of a conductive material.
Is in a state of conduction by the leaf spring 21 and the plate member 25.

According to the present embodiment, the same effects as those of the above-described embodiment of the present invention can be obtained. (Embodiment 2) In this embodiment, as shown in FIG.
A plate-shaped conductive member 23 is attached to the hinge portion 3a, and the conductive member 23 and the main frame 5 are connected by a coil spring (connection member) 22.

According to this embodiment, the same effects as those of the above-described embodiment can be obtained.

[0031]

As described above, according to the present invention,
Since the impact from the stand is attenuated by the elastic connecting member, it is hardly transmitted to the display, and the display is not damaged. Also, when an excessive force is applied to grasp and rotate the display unit,
The extra force is absorbed by the deformation of the connecting member and is hardly applied to the display unit, and the display unit is not damaged. Further, since the impact and the extra force can be absorbed by the connecting member, the thickness of the display-side member (for example, the frame member) can be reduced, and the display unit can be made thinner and lighter.

Even when the display section is constituted by a liquid crystal panel or the like in which a liquid crystal is sandwiched between a pair of substrates, the liquid crystal panel is hardly subjected to impact or extra force, and Of the liquid crystal panel and damage to the liquid crystal panel can be avoided. Such an effect is remarkable when a liquid crystal exhibiting a ferroelectric state is used as the liquid crystal.

On the other hand, since the connecting member is formed of a conductive material, a portion where the connecting member is connected in the display portion and a portion where the connecting member is connected in the stand portion are conductive. In the case of being formed of a member having a property, the chassis potential (GND) of the stand portion and the display portion can be made common to reduce radiation noise.

[Brief description of the drawings]

FIG. 1 is a diagram showing an example of the structure of a conventional display device;
(a) is a front view, (b) is a side view, and (c) is a rear view with a back cover removed.

FIG. 2 is an exploded perspective view showing a detailed structure of a display unit.

FIG. 3 is a diagram showing another example of the structure of a conventional display device.

4A and 4B are diagrams showing one embodiment of the structure of the display device according to the present invention, wherein FIG. 4A is a front view, FIG. 4B is a side view, and FIG.

FIG. 5 is a diagram showing another embodiment of the structure of the display device according to the present invention.

[Explanation of symbols]

 Reference Signs List 2 display unit 3 stand unit 5 main frame (frame member) 20 display device 21 leaf spring (connection member) 22 coil spring (connection member) P liquid crystal panel

Claims (6)

[Claims] 1. A display device comprising: a display unit for displaying various information; and a stand unit for supporting the display unit, wherein the display unit and the stand unit are connected members having conductivity and elasticity. A display device, characterized by being connected by: 2. The display device according to claim 1, wherein a portion of the display unit to which the connecting member is connected and a portion of the stand unit to which the connecting member is connected are formed of a conductive material. 2. The display device according to 1. 3. The display device according to claim 1, wherein the connecting member is a plate-like elastic member. 4. The display device according to claim 1, wherein the connecting member is a coil spring. 5. The display section has a liquid crystal panel formed by sandwiching liquid crystal between a pair of substrates, and a conductive frame member to which the liquid crystal panel is attached, and wherein the connection is performed. The display device according to any one of claims 2 to 4, wherein a member is connected to the frame member. 6. The display device according to claim 5, wherein the liquid crystal is a liquid crystal exhibiting a ferroelectric state.