JPH0580307A - Liquid crystal display - Google Patents

Abstract

(57) [Summary] [Object] To provide a fixing structure capable of protecting a liquid crystal display device against vibration and impact applied from the outside. [Structure] A cushion material (4) for absorbing impact force is interposed between a screw (7) inserted through a mounting hole (10) of a liquid crystal display device (1) and an exterior frame (8). [Effect] Vibration and impact force applied from the exterior frame (8) are prevented from being transmitted to the liquid crystal display device (1) side by the cushion material (4), and the liquid crystal display device (1) is protected from damage.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a liquid crystal display device, and more particularly to a liquid crystal display device having a mounting structure which has a large impact resistance against an impact from the outside and is easy to assemble.

[0002]

2. Description of the Related Art Conventionally, a liquid crystal display device has a liquid crystal display element and a drive circuit for driving the same mounted on the periphery or the back surface of the liquid crystal display element and has a display unit such as a personal computer or a word processor incorporating these as display means. It is housed in the electronic device side case (exterior frame) that constitutes it.

FIG. 3 is an external view of a liquid crystal display device.
Reference numeral 1 is a liquid crystal display element, 2 is a metal frame of the liquid crystal display device 1, and 3 is an integrally formed plastic mold that houses the liquid crystal display device 1. As shown in the drawing, a mounting portion A for fixing to the exterior frame is provided at two or more required portions (four corners in the same figure) around the liquid crystal display device 1.
Is provided, and a screw is inserted into the screw hole formed in the mounting portion A to be fixed to the bracket on the exterior frame side.

FIG. 4 is an enlarged view of the mounting portion A of FIG. 3, and the same reference numerals as those in FIG. 3 denote the same parts, 6 is a bracket which is erected on the exterior frame, and 7 is a fixing screw. As shown in the figure, the liquid crystal display device 1 and the exterior frame are fixed by using screws 7 in screw holes 10 formed in brackets 6 that are erected on the exterior frame.

FIG. 5 shows the liquid crystal display device B- of FIG.
FIG. 5 is a cross-sectional view of the entire liquid crystal display device taken along line B ′, where the same reference numerals as those in FIGS. 3 and 4 denote the same parts, 9 is a drive circuit for driving the liquid crystal display element 11, and 5 is this drive circuit 9. A flexible cable, which is a connecting means for electrically connecting the liquid crystal display device 1, 8 is an exterior frame. In FIG. 5, the liquid crystal display element 11 is illustrated as a so-called reflective liquid crystal display element, but in the case of a transmissive liquid crystal display element, a backlight light source is arranged on the back side of the liquid crystal display element 11. In the case of this transmissive liquid crystal display element, the fixing to the exterior frame is similarly performed.

[0006] As a disclosure of the prior art relating to this type of liquid crystal display device, Japanese Utility Model Publication No. 2-5780 can be cited.

[0007]

In the above-mentioned prior art, since the exterior frame for accommodating the liquid crystal display device and the liquid crystal display element are fixed by tightening the screws, the impact applied from the outside is directly applied to the liquid crystal display element. And the glass plate constituting the liquid crystal element may be damaged. In particular, since recent liquid crystal display elements tend to be thinned, it is difficult to sufficiently protect against vibration and impact with the above-mentioned conventional fixing structure.

An object of the present invention is to provide a liquid crystal display device having a fixing structure capable of protecting the liquid crystal display element against vibration and impact applied from the outside.

[0009]

In order to achieve the above object, the present invention is characterized in that a member having a shock absorbing function is inserted in a fixed portion between a liquid crystal display element and an exterior frame. That is, the present invention comprises a liquid crystal display element (11),
Connecting means (5) for electrically connecting the drive circuit board (9), the liquid crystal display element (11) and the drive circuit board (9).
A metal frame (2) for accommodating and a plastic mold (3), and mounting holes (1
In a liquid crystal display device in which a screw (7) is inserted into 0) and fixed to the exterior frame (8), between the screw (7) inserted into the mounting hole (10) and the exterior frame (8). A cushion material (4) that absorbs impact force is inserted.

[0010]

The liquid crystal display device (vibration and impact force applied from the outside world by the cushion material (4) inserted in the screw hole (10) for fixing the liquid crystal display device (1) and the exterior frame (8). The liquid crystal display device is well protected without being directly transmitted to 1).

[0011]

Embodiments of the present invention will now be described in detail with reference to the drawings. 1 is a perspective view similar to FIG. 4 for explaining one embodiment of a liquid crystal display device according to the present invention, in which 1 is a liquid crystal display device, 2 is a metal frame, 3 is a plastic mold, and 4 is a cushion material. , 6 is a bracket which is erected on the exterior frame, 7 is a screw, 10 is a mounting screw hole, and 11 is a liquid crystal display element. Here, the liquid crystal display element 11, the drive circuit board, and the flexible cable as the connecting means have the same structure as in FIG.

In this embodiment, the liquid crystal display device 1 is fixed to the external frame by a mounting hole 10 between the mounting screw 7 and the liquid crystal display device 1 or between the liquid crystal display device 1 and the external frame (exterior). The cushioning material 4 is inserted into one or both of the abutting portions of the bracket 6) that is planted in the frame, so that an impact force absorbing action is imparted between the exterior frame and the liquid crystal display device 1.

In this embodiment, as the cushion member 4, a plate-like member as shown in FIG. 2A is inserted, but the shape of this cushion member is not limited to this, and for example, as shown in FIG. As shown in (b), a cushion material having a shape that extends inside the mounting hole 10 can also be used. Further, instead of the bracket 6 (see FIG. 5) fixed to the exterior frame, a fixing member having an arbitrary shape fixed to the exterior frame may be provided on the exterior frame.

According to this embodiment, vibration and impact force from the exterior frame side are prevented from being directly transmitted to the liquid crystal display device 1 as in the prior art, and the liquid crystal display device 1 is protected from damage. be able to.

[0015]

As described above, according to the present invention,
Since the cushioning material is interposed between the liquid crystal display device and the exterior frame, it is possible to prevent vibration and impact from the exterior frame from being transmitted to the liquid crystal display device, and thus protect the liquid crystal display device from damage. .

[Brief description of drawings]

FIG. 1 is a perspective view of an essential part for explaining an embodiment of a liquid crystal display device according to the present invention.

FIG. 2 is a perspective view illustrating the shape of a cushion material used in the liquid crystal display device according to the present invention.

FIG. 3 is an external view of a liquid crystal display device.

4 is an enlarged view of a mounting portion A of the liquid crystal display device in FIG.

5 is a cross-sectional view of the liquid crystal display device shown in FIG. 3 taken along line BB ′ when the liquid crystal display device is fixed to an exterior frame.

[Explanation of symbols]

1 ... Liquid crystal display device, 2 ... Metal frame, 3
・ ・ ・ ・ Plastic mold, 4 ・ ・ ・ ・ ・ ・ Cushion material, 5 ・ ・ ・ ・ ・ ・ Flexible cable, 6 ・ ・ ・ ・ Bracket, 7 ・ ・ ・ ・ Mounting screw, 8 ・ ・ ・ ・ ・ ・ External frame, 9 ・... Drive circuit board, 10 ... Mounting hole, 11 ... Liquid crystal display element.

 ─────────────────────────────────────────────────── ─── Continuation of the front page (72) Hitoshi Suzuki, 3300 Hayano, Mobara-shi, Chiba, Hitachi, Ltd. Mobara factory (72) Inventor Takayuki Iura, 3300, Hayano, Mobara-shi, Chiba, Hitachi Ltd., Mobara, Hitachi, Ltd.

Claims (1)

[Claims] 1. A liquid crystal display element (11), a drive circuit board (9), and a connecting means (5) for electrically connecting the liquid crystal display element (11) and the drive circuit board (9). A liquid crystal display device having a metal frame (2) and a plastic mold (3) to be fixed to each other, and a screw (7) is inserted into a mounting hole (10) provided in a peripheral portion and fixed to an exterior frame (8). A liquid crystal display device according to claim 1, wherein a cushion material (9) for absorbing impact force is interposed between the screw (7) inserted through the mounting hole (10) and the exterior frame (8).