JPH11167108A - LCD module - Google Patents

Abstract

(57) [Summary] [PROBLEMS] To provide a liquid crystal display module in which caulking does not come off even when a strong impact is dropped. SOLUTION: A backlight unit 8 in which required equipment is accommodated in a resin case 3, a liquid crystal display panel 7 provided on an upper part of the backlight unit 8, a backlight unit 8, the liquid crystal display panel 7, And a metal frame 1 having an opening 12 formed in a display range of the liquid crystal display panel 7. The resin case 3 has a guide hole 4, and the metal frame 1 has a caulking claw 2 penetrating the guide hole 4. The tip of the caulking claw 2 penetrating the guide hole 4 is caulked.

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 module using a caulking structure.

[0002]

2. Description of the Related Art In recent years, liquid crystal display devices have been widely used in display devices for information devices such as notebook type personal computers, taking advantage of the features of light weight, thinness, and low power consumption. Further, as a recent tendency, as the size of the liquid crystal display screen becomes larger, on the contrary, there is a demand for a lighter and thinner liquid crystal display screen. Furthermore, in order to take advantage of the portability of a notebook-type personal computer, it is required to improve the durability against impact drop and vibration.

FIG. 4 shows a caulking structure of a conventional liquid crystal module having a backlight unit. In FIG. 4, reference numeral 11 denotes a main body, which includes a backlight unit and a liquid crystal display panel. 1 is a metal frame, and a main body 1
1 and has an opening 12 corresponding to the display range of the liquid crystal display panel of the main body 11. The metal frame 1 is integrally formed with a claw 2 for crimping, and the resin case 3 of the main body 11 is formed with a concave portion 13 into which the claw 2 for crimping is inserted by a caulking process. As shown in the figure, usually, a crimping claw 2 provided on a metal frame 1 has a crimping structure bent inward from the outside of the liquid crystal display module.

[0004]

However, in the caulking structure as shown in the conventional example of FIG. 4, when the metal frame 1 is dropped in the direction of arrow A as shown by arrow B, the metal frame 1 is positioned outside the liquid crystal display module. There is a possibility that a problem may occur in that the caulking claw 2 comes off from the resin case 3 without bending, and the weight of the backlight unit and the liquid crystal display panel cannot be supported. In particular, recently, as the size of the liquid crystal display screen increases, the weight of one liquid crystal display module tends to increase, and there is a concern that occurrence of such a problem is likely to increase.

[0005] The present invention has been made in view of the above points, and has as its object to provide a liquid crystal display module that does not come off when a strong impact is dropped.

[0006]

In order to achieve this object, the present invention provides a case wherein a case has a guide hole, and a metal frame has a caulking claw passing through the guide hole. The claw is configured such that a tip end portion penetrating the guide hole is swaged.

According to this structure, even if a strong shock is applied to the metal frame and a force to bend outwardly acts on the metal frame, the caulking claw is passed through the guide hole of the case and held. The caulking does not come off.

[0008]

DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention according to claim 1 is a backlight unit in which required equipment is housed in a case, a liquid crystal display panel provided on an upper portion of the backlight unit, and the backlight. While covering the unit and the liquid crystal display panel, the display range of the liquid crystal display panel has a perforated metal frame, the case has a guide hole, and the metal frame is for caulking penetrating the guide hole. The claw has a claw, and the claw for crimping is configured such that a tip end portion penetrating the guide hole is crimped.

Thus, even if a strong shock is applied to the metal frame and a force to bend outwardly acts on the metal frame, the caulking claw is held through the guide hole of the case.
The crimping is prevented from coming off.

According to a second aspect of the present invention, the caulking structure is such that the caulking direction is outward of the liquid crystal display module. Accordingly, even if the metal frame bends to the outside of the liquid crystal display module upon impact drop, the warp acts to further strengthen the crimped state, so that the caulking is similarly prevented from coming off.

Hereinafter, embodiments of the present invention will be described with reference to the drawings. FIG. 2 shows a sectional structure of a main part of the liquid crystal display module according to the embodiment of the present invention. Where 2
Is a resin case, inside the resin case 2, a light guide 5 provided with light equalizing means, and a fluorescent light which is arranged on the side of the light guide 5 and supplies light to the light guide 5. A tube 6 is provided to constitute a backlight unit 8. A liquid crystal display panel 7 is provided above the backlight unit 8.

In FIG. 1 and FIG. 2, reference numeral 1 denotes a metal frame, which is formed as a box-like body that covers the liquid crystal display panel 7 and the backlight unit 8. Also metal frame 1
Has an opening at the bottom and an opening 12 at the top corresponding to the display range of the liquid crystal display panel 7.

A plurality of projections 9 are provided around the resin case 3 constituting the backlight unit, and each of the projections 9 is formed with a guide hole 4 penetrating therethrough. On the side portion of the metal frame 1, a caulking claw 2 that penetrates the guide hole 4 when the metal frame 1 is put on the resin case 3 is integrally formed.

FIG. 3 (a) shows a state where crimping is applied to the concave portion 14 formed in the projection 9 after the crimping claw 2 is passed through the guide hole 4 from the bottom side. It is. As shown in FIGS. 3A and 2, the caulking claw 2 uses the thick portion 10 of the projection 9 located outside the liquid crystal display module with respect to the guide hole 4 to form the caulking. The tightening direction is configured to be outside of the liquid crystal display module.

In this case, as shown in FIG. 3 (b), a strong impact drop is applied in the direction of arrow A, and a bending force acts on the metal frame 1 in the outward direction indicated by arrow B. However, since the caulking claw 2 is passed through and held by the guide hole 4 of the resin case 3, the caulking is prevented from coming off. Further, as shown in FIG. 3, the caulking direction of the claw 2 is the outward direction of the liquid crystal display module, that is, the bending direction at the time of impact drop of the metal frame 1 shown by the arrow B, and the caulking state is changed by this bending. It also acts to reinforce and similarly prevents the crimping from coming off. Therefore, durability against a strong impact drop is satisfied.

In the above description, the case 3 made of resin is used.
However, the same effect can be obtained when this case is formed of metal or other material.

[0017]

As described above, according to the present invention,
The case has a guide hole, the metal frame has a caulking claw penetrating the guide hole, and the caulking claw is
Because the tip that penetrated the guide hole is configured to be caulked, even if a strong impact drop is applied and a force that bends outwardly acts on the metal frame, the caulking claw is inserted into the guide hole of the case. Since it is passed through and held, it is possible to reliably prevent the caulking from coming off.

[Brief description of the drawings]

FIG. 1 is an exploded perspective view of a main part of a liquid crystal display module according to an embodiment of the present invention.

FIG. 2 is a diagram showing a cross-sectional structure of a main part of the liquid crystal display module.

FIG. 3 is a view showing a crimping structure of the liquid crystal display module.

FIG. 4 is a diagram showing a caulking structure of a conventional liquid crystal display module.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Metal frame 2 Clamping nail 3 Resin case 4 Guide hole 7 Liquid crystal display panel 8 Backlight unit

Claims (2)

[Claims] 1. A backlight unit in which required equipment is accommodated in a case, a liquid crystal display panel provided on an upper portion of the backlight unit, and a liquid crystal display that covers the backlight unit and the liquid crystal display panel. A display area of the display panel having a perforated metal frame;
The case has a guide hole, the metal frame has a claw for caulking penetrating the guide hole, and the claw for caulking is that a tip end portion penetrating the guide hole is caulked. Characteristic liquid crystal display module. 2. The liquid crystal display module according to claim 1, wherein the caulking structure has a caulking direction outside the liquid crystal display module.