KR101232514B1 - Liquid crystal display device - Google Patents

Abstract

The present invention discloses a liquid crystal display device for improving the assemblability of the liquid crystal display module and the system case. The disclosed liquid crystal display device includes a liquid crystal display module having a top case which supports and protects the liquid crystal panel and the backlight assembly, and has first and second protrusions protruding in both lateral directions, and the first and second protrusions. It characterized in that it comprises a fastened system case.

Protrusions, System Case, Brackets, Screw Holes

Description

[0001] LIQUID CRYSTAL DISPLAY DEVICE [0002]

1 is an exploded perspective view of a liquid crystal display device in which a liquid crystal display module and a system case according to the related art are assembled;

FIG. 2 is a cross-sectional view taken along the line II ′ of the liquid crystal display module of FIG. 1. FIG.

3 is an exploded perspective view of a liquid crystal display device in which a liquid crystal display module and a system case according to the present invention are assembled;

4 is a cross-sectional view taken along the line II-II ′ of FIG. 3.

5 is a detailed view of A of FIG. 3 according to the present invention;

Description of the Related Art [0002]

110: liquid crystal display 120: bottom case

130: liquid crystal panel 140: mold frame

150: top case 160: backlight assembly

170: system case 180: bracket

190: screw 200: protrusion

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 which prevents warpage of a top case and improves assembling of a liquid crystal display module and a system case.

CRT (Cathode Ray Tube), one of the widely used display devices, is mainly used for monitors such as TVs, measuring devices, information terminal devices, etc., but due to the weight and size of the CRT itself, the miniaturization and weight of electronic products Could not actively respond to the response.

On the other hand, the liquid crystal display device is a display device, which has the advantage of being able to realize light and small size and low power consumption compared to the CRT. In particular, liquid crystal displays using thin film transistors have been used in various fields in the notebook PC and monitor market as well as in recent years since they have achieved high quality, large size, and color display screen comparable to CRTs.

Another display device, a liquid crystal display, includes a liquid crystal panel for displaying an image, a driving circuit for driving the liquid crystal panel, and a backlight assembly for providing light, and these components are placed in a mold frame. The liquid crystal display module is completed by being assembled by a bezel in a stacked arrangement. Here, the driving circuit is usually attached to the back of the backlight assembly by a flexible film connected to the liquid crystal panel. The liquid crystal display module assembled by the bezel is assembled with a system case having a predetermined shape to manufacture a practical liquid crystal display device such as a notebook PC or a monitor.

1 is an exploded perspective view of a liquid crystal display device in which a liquid crystal display module and a system case according to the related art are assembled, and FIG. 2 is a cross-sectional view taken along the line II ′ of the liquid crystal display module of FIG. 1.

As shown in FIG. 1 and FIG. 2, the liquid crystal display device 10 accommodates and supports the liquid crystal panel 30, a backlight assembly (not shown) that provides light, and the liquid crystal panel 30 and the backlight assembly. The liquid crystal display module 15 includes a top case 50 and a bottom case (not shown).

The liquid crystal display device 10 includes a bracket 80 to prevent damage to the top case 50 and to facilitate the assembly of the liquid crystal display module 15 and the system case 70. It further comprises a screw (90).

The bracket 80 serves to prevent damage to the top case 50 of the liquid crystal display module when the liquid crystal display module and the system case 70 are assembled, and to facilitate the assembly.

The bracket 80 is assembled by fastening the screw 90 to a plurality of screw holes 83 formed on the one side and the other side of the top case 50 is formed with a plurality of screw holes (83). .

Both sides of the bracket 80 are provided with a screw hole 83 for assembly with the system case 70 is fastened by a screw (90).

The liquid crystal display module includes a liquid crystal panel 30 for displaying an image, a backlight assembly 60 for providing light, a mold frame 40 in which the liquid crystal panel 30 and the backlight assembly 60 are stacked, and The top case 50 and the bottom case 20 accommodate and support the liquid crystal panel 30 and the backlight assembly 60.

The liquid crystal display device 10 includes a bracket 80 and a screw 90 for assembling the liquid crystal display module 15 and the system case 70.

The top case 80 is made of a light and thin metal material, and a plurality of screw holes 83 are formed on one side and the other side.

The bracket 80 is formed with a screw hole facing one side and the other side of the top case 50 is fastened to the top case 50 by the screw (90).

The bracket 80 further includes screw holes 86 for assembling with the system case 70 on both sides.

After the bracket 80 and the top case 50 are fastened, the screws 90 are fastened to the screw holes 86 and the screw holes 73 of the system case 70 at both sides of the bracket 80. Assembly of the liquid crystal display device is completed.

However, the conventional liquid crystal display device uses a large number of screws 90 at the time of assembling the liquid crystal display module 15 and the system case 70, thereby causing a complicated assembly, a low work rate, and a high cost. . In addition, due to the weak strength of the light and thin top case 50, as the assembly process proceeds, a bending phenomenon occurs in the top case by external force. Due to such warpage, friction between components inside the liquid crystal display device is caused, so that failure of components is frequently caused.

SUMMARY OF THE INVENTION An object of the present invention is to provide a liquid crystal display device in which protrusions are formed on a top case to prevent component breakage due to warpage and improve assembly.

In order to achieve the above object, the liquid crystal display device according to the present invention,

A liquid crystal display module having a top case for supporting and protecting the liquid crystal panel and the backlight assembly and having first and second protrusions protruding in both lateral directions; And

And a system case fastened to the first and second protrusions.

In addition, the liquid crystal display device according to the present invention for achieving the above object,

Bottom case;

A backlight assembly accommodated in the bottom case;

A liquid crystal panel disposed on the backlight assembly;

A top case supporting and protecting the liquid crystal panel and having first and second protrusions protruding in both lateral directions;

A system case disposed on a bottom surface of the bottom case;

And screws for fastening the first and second protrusions to the system case.

Hereinafter, embodiments according to the present invention will be described in detail with reference to the accompanying drawings.

3 is an exploded perspective view of a liquid crystal display device in which a liquid crystal display module and a system case according to the present invention are assembled, and FIG. 4 is a cross-sectional view taken along the line II-II ′ of FIG. 3.

As shown in FIGS. 3 and 4, the liquid crystal display 110 accommodates a liquid crystal panel 130 for displaying an image, a backlight assembly for providing light, the liquid crystal panel 130, and a backlight assembly. And a liquid crystal display module 115 including a top case 150 and a bottom case (not shown) and a system case 170.

The liquid crystal display device 110 further includes first and second brackets 180 and 185 and a screw 190 for fastening the liquid crystal display module 115 and the system case 170.

Although not shown, the backlight assembly includes a light source for generating light, a light source housing for protecting the light source, a light guide plate for converting light generated from the light source into a surface light source, and a reflecting plate for reflecting light directly from the light guide plate. And an optical sheet disposed on the light source for diffusing and condensing light generated from the light source.

The top case 150 has first and second protrusions 200 and 210 protruding in a lateral direction of one side thereof, and the first and second protrusions 200 and 210 may include at least one screw hole 202. ) Is formed. That is, the first and second protrusions 200 and 210 protrude from the bottom of the top case 150 by a predetermined length in the lateral direction of each side surface. The first and second protrusions 200 and 210 may be formed in a plate shape.

In FIG. 3, two screw holes 202 are formed in each of the protrusions 200 and 210, but a plurality of screw holes 202 may be formed as necessary.

The first and second protrusions 200 and 210 are integrally formed with the top case ().

The first and second brackets 180 and 185 preferably have the same size as each of the protrusions 200 and 210 of the top case 150. In addition, a screw hole 183 corresponding to the screw holes 202 formed in the protrusions 200 and 210 may be formed in the first and second brackets 180 and 185.

The system case 170 is disposed on a bottom surface of the liquid crystal display module 115. The system case 170 preferably has at least a width of the liquid crystal display module 115 and a width of the first and second protrusions 200 and 210. In this case, a screw hole 173 may be formed in the system case 170 in a region corresponding to the screw holes 202 formed in the protrusions 200 and 210.

When the first and second brackets 180 and 185 are disposed on the protrusions 200, and the system case 170 is disposed below the first and second protrusions 200 and 210, the screw 190 is disposed. The first and second protrusions 200 and 210, the first and second brackets 180 and 185, and the system case 170 are fastened to coincide with each other. In this case, the screw 190 may include a screw hole 183 of the first and second brackets 180 and 185, a screw hole 202 of the first and second protrusions 200 and 210, and a system case 170. It can be fastened through the screw hole 173 of the.

In the liquid crystal display device 110, first and second protrusions 200 and 210 are formed on one side and the other side of the top case 150, respectively, so that the liquid crystal display module may be formed by two screws 190. 115 and the system case 170 may be coupled, thereby reducing assembly costs and improving assembly performance.

In addition, since the protrusion 200 is formed on the top case 150, the strength of the top case 150 is improved to improve the warpage of the top case 150, thereby contacting the liquid crystal display module in contact with the top case 150 ( It is possible to prevent the damage of the product by suppressing the friction between the parts of 115).

FIG. 5 is a detailed view of FIG. 3A according to the present invention. FIG.

As shown in FIG. 5, the LCD device includes a top case 150 for protecting the liquid crystal panel 130 (130), a protrusion 200 formed in a planar shape on a lower side of the top case 150, and A bracket 180 disposed on the protrusion 200 and a system case 170 provided below the protrusion 200 are included.

The protrusion 200, the bracket 180, and the system case 170 include at least one screw hole 183, 202, and 173 facing each other.

The protrusion 200 may be formed of the same material as the top case 150 and may be formed during the manufacturing process of the top case 150.

The bracket 180 prevents damage to the protrusion 200 and reinforces a supporting force when the liquid crystal display module and the system case 170 are assembled.

A plurality of screw holes facing each other of the protrusion 200, the bracket 180, and the system case 170 may be fastened with one screw 190, respectively.

In the assembly of the liquid crystal display, the bracket 180 is disposed on the protrusion 200, the system case 170 is disposed below the protrusion 200, and the protrusion 200 is formed by using the screw 190. The screw holes of the bracket 180 and the system case 170 are fastened to coincide with each other.

The top case 150 may be assembled by surface contact between the protrusion 200 and the system case 170, thereby preventing component damage due to warpage of the light and thin top case 150.

Accordingly, in the liquid crystal display device 110 of the present invention, the first and second protrusions 200 and 210 are formed on one side and the other side of the top case 150, respectively, so that the liquid crystals are each formed by two screws 190. By fastening the display module 115 and the system case 170, the assembly cost can be improved while reducing the component cost.

In addition, since the protrusion 200 is formed on the top case 150, the strength of the top case 150 is improved to improve the warpage of the top case 150, thereby contacting the liquid crystal display module in contact with the top case 150 ( It is possible to prevent the damage of the product by suppressing the friction between the parts of 115).

As described above, according to the present invention, the protrusions are formed on one side and the other side of the top case, thereby improving the assemblability of the bracket, the protrusion and the system case.

In addition, since the protrusion is assembled in surface contact with the system case, there is an effect of improving the strength of the top case to prevent component damage due to the bending phenomenon.

Those skilled in the art through the above description will be capable of various changes and modifications without departing from the spirit of the present invention. Therefore, the technical scope of the present invention should not be limited to the contents described in the detailed description of the specification but should be defined by the claims.

Claims (11)

A liquid crystal display module having a top case for supporting and protecting the liquid crystal panel and the backlight assembly and having first and second protrusions protruding in both lateral directions; A flat plate type system case fixed to the first and second protrusions; First and second brackets disposed on the first and second protrusions to reinforce the bearing force of the first and second protrusions; and A bottom case accommodating the backlight assembly; The first and second protrusions protrude horizontally in the outward direction of the bottom case with respect to the bottom case in the outward direction of the bottom case, bent outwardly from the entire lower end of both sides of the top case, The first and second brackets have the same area as the first and second protrusions and are in surface contact with the first and second protrusions, And the first and second protrusions, the system case, and the first and second brackets include screw holes overlapping each other. delete The method of claim 1, And the liquid crystal display module and the system case are fastened by screws. delete delete The method of claim 1, And the first and second protrusions are integrally formed with the top case. The method of claim 1, And the first and second protrusions extend laterally from a bottom surface of the top case. delete delete delete delete

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