KR20080042285A - Method for manufacturing housing for LCD module and housing manufactured by - Google Patents

Abstract

A method for manufacturing a housing for an LCD(Liquid Crystal Display) module and a housing manufactured by the same are provided to form linear frames continuously by using only a pair of progressive type molds, thereby processing a housing frame at speed significantly higher than an existing method using several pairs of molds. A module housing frame is linearly, sequentially and continuously pressed to manufacture a linear frame(10) by using a progressive type mold. In the linear frame, plural horizontal frames(10a) and vertical frames(10b) are installed. In an end of one side of the linear frame, a prolongation unit(13) is formed. After forming a polygon housing frame by contacting ends of the linear frame, the contacted ends are coupled through a mechanical coupling method. In an overlapped portion between the prolongation unit and the vertical frame, a protrusion unit(17) protruded towards the inside of a housing(19) is formed..

Description

The manufacturing method of the housing for an LCD module, and the housing manufactured by it are the MANUFACTURING METHOD OF THE HOUSING FOR LCD MODULE AND HOUSING MADE BY THE SAME}

BRIEF DESCRIPTION OF THE DRAWINGS Fig. 1 is a view sequentially showing a state of processing a straight frame by a progressive mold in a method of manufacturing a housing for an LCD module according to embodiments of the present invention.

2A to 2D are views sequentially showing a method of manufacturing a housing for an LCD module according to a first embodiment of the present invention.

3A to 3D are views sequentially showing a method of manufacturing a housing for an LCD module according to a second embodiment of the present invention.

4A to 4B are views sequentially showing a method of manufacturing a housing for an LCD module according to a third embodiment of the present invention.

5A to 5C are views sequentially showing a method of manufacturing a housing for an LCD module according to a fourth embodiment of the present invention.

6A to 6C are views sequentially showing a method of manufacturing a housing for an LCD module according to a fifth embodiment of the present invention.

7 is a view sequentially showing a manufacturing method of a housing for a conventional LCD module.

     Explanation of symbols on main parts of drawing

8, 10, 20, 30, 40, 50: straight frame

10a, 20a, 30a, 40a, 50a: horizontal frame

10b, 20b, 30b, 40b, 50b: vertical frame

11: folding notch 13, 43, 45, 53: extension

15: clinching equipment

17, 47: protrusions 19, 29, 39, 49, 59: housing

33: protrusion 35: recess

50a1, 50b1: Side 50a2, 50b2: Top

55: opening

The present invention relates to a method for manufacturing a housing for an LCD module (hereinafter referred to as "LCD module housing") and to a housing manufactured thereby, and more particularly, to simplify the manufacturing process of the housing and to reduce the consumption of unnecessary materials The present invention relates to a method for manufacturing an LCD module housing that can dramatically improve productivity compared to existing production methods, and a housing manufactured thereby.

In general, the LCD module housing serves to support the LCD module at the outer portion of the LCD module to which the LCD panel is mounted, and is also referred to as a top chassis, a bezel frame, or the like. to be.

The LCD module housing has a characteristic of being precisely manufactured by a mold operation using a metallic material so as to accurately wrap the outer side of the LCD module.

However, the LCD module housing is conventionally manufactured through various complicated processes at the time of metal mold | die work.

Looking at an example of the manufacturing process of the conventional LCD module housing, it is performed in the order of the process as shown in Figs.

That is, the manufacturing process of the conventional LCD module housing is performed through the single mold | die which requires one mold of a mold for each advancing process.

Such a conventional manufacturing process will be described in detail below.

As shown in Figure 7 (a), using the steel plate of the plate rolled in the form of a roll to draw it into the first mold machine while compounding is carried out in the first step.

In the compound process of FIG. 7 (a), the flat plate is rolled into a flat state while being pulled in a flat state to press the plate to be cut out according to the size of the LCD module in the mold machine.

In the compound step at this time, processes such as blanking, piercing and notching are simultaneously performed in one work step.

As described above, after the compounding process for machining the rectangular flat plate 2 having the shape as shown in Fig. 7A by the first die is completed, the piercing, as shown in Fig. 7B, is followed. The secondary work process is carried out using a second mold machine for the embossing and burring process.

Subsequently, as shown in (c) of FIG. 7 using a third mold machine in which the piercing, embossing and burring plate 2 is successively connected in FIG. 7 (b), the L-bending and Z bending is performed at the same time.

Here, the L bending is to be bent to surround the outer surface of the LCD module, Z bending is to press the process to be pushed inward so that the front of the LCD module is fixed to the outer side when the LCD module is mounted.

At this time, the Z-bending mold LCD module housing fixes the front surface of the LCD module in close contact. When there is no bending part, the fixing force on the LCD module is weakened. do.

As shown in (c) of FIG. 7, when the L bending and Z bending processes are completed, the fourth mold as shown in (d) of FIG. 7 so that the front surface of the LCD module is visible when the LCD module is mounted. A bezel piercing process is performed using a machine to remove the unneeded central flat plate 4 except the L-bend and Z-bend areas.

When the bezel piercing process performed in the process of FIG. 7 (d) is completed, the portion remaining in the bezel piercing process by the fourth mold machine, i.e., unnecessarily adheres to the portion to be pressed when being processed by the mold. Tapping process that can remove the metal residue and the like to be bonded using a screw or the like is performed using the fifth mold machine as shown in Figure 7 (e).

Subsequently, the finishing process is carried out in detail using a sixth mold machine to manufacture the finished product of the desired LCD module housing.

In the conventional manufacturing method of the LCD module housing made of such complex processes, the operation must be carried out using at least six expensive mold machines.

In particular, from the point of view of equipment investment, if a large amount of expensive mold machine is to be installed, the investment cost is quite high, and a large number of mold machines must be used to fit the work process by using a mold suitable for the shape of each housing. There is a problem that a large number of workers need to operate or manage a mold.

In addition, in the process of FIG. 7 (d), in order to make a frame frame for fixing only the edge except for the part where the module is seen by mounting the LCD module, unnecessary parts are pierced, that is, parts that are unnecessary in the form of a square in the inner part. The operation | work which needs to be cut by the press cutting process is performed. In this case, there are more problems than the border frame that is unnecessarily cut out.

In addition, although this part is recycled, there is a problem in that a work process that requires a new flat plate processing at the time of recycling is added.

Therefore, in the conventional manufacturing method of the LCD module housing, not only a large amount of mold machines are required, but also a mobile robot for transferring the workpiece from one mold machine to the next mold machine is required between the respective mold machines. Not only does it cost a lot of equipment investment, but also has a problem of increasing management costs.

In addition, the conventional manufacturing method of the LCD module housing has a problem in that a steel sheet material cost is required because it is necessary to press-cut and discard the inner part in order to obtain a rectangular frame with the inner part opened.

The present invention has been made in view of the above-described conventional problems, and an object thereof is to provide a method of manufacturing an LCD module housing and a housing using the same, which can simplify the process of manufacturing the housing and at the same time eliminate unnecessary waste of flat plate material. It is.

In order to achieve the above object, the manufacturing method of the LCD module housing according to an embodiment of the present invention, using a progressive type (progressive type) of the linear frame to continuously press the module housing frame in a straight line sequentially The manufacturing step may include a step of engaging the ends of the linear frame with each other to form a polygonal housing frame, and then joining the end parts contacted with each other by a mechanical coupling method. In this case, the mechanical method may be a caulking or clinching method.

In addition, the manufacturing method of the LCD module housing according to another embodiment of the present invention, using a progressive mold, a linear frame manufacturing step of successively pressing a straight module housing frame having a projection and a recess at the end sequentially And engaging the ends of the linear frame with each other to form a polygonal housing frame, and then engaging the protrusions and the recesses provided at the ends of the linear frame with each other so as to engage with each other by interference fitting. It may include.

In addition, according to another embodiment of the present invention, a method for manufacturing a housing for an LCD module is formed by contacting one end surface of a linear frame with an inner surface of the other end to form a polygonal housing frame, and then contacting each other. And a bonding step of mutually bonding the two by laser welding. In this case, the straight frame may be bent to form upper and side surfaces, and an opening may be formed at a boundary portion between the upper surface and the side surface of the abutted portions.

In embodiments of the present invention, a bending step of bending the straight frame to form a horizontal frame and a vertical frame may be further included.

Meanwhile, a notch for bending may be formed at a boundary between the adjacent vertical frame and the horizontal frame of the straight frame, and a hole may be formed inside the bending notch.

In addition, in embodiments of the present invention, a plurality of linear frames may be pressed during the linear frame manufacturing step, and the ends of the plurality of linear frames may contact each other to form a polygonal housing frame.

Hereinafter, with reference to the accompanying drawings will be described in detail an embodiment of the present invention. As those skilled in the art would realize, the described embodiments may be modified in various different ways, all without departing from the spirit or scope of the present invention. In the drawings, parts irrelevant to the description are omitted in order to clearly describe the present invention, and like reference numerals designate like elements throughout the specification.

1 is a view sequentially showing a state of processing into a linear frame by a progressive mold in the manufacturing method of the LCD module housing according to the embodiments of the present invention.

Referring to FIG. 1, a manufacturing method of a housing for an LCD module according to embodiments of the present invention includes a straight frame manufacturing step of sequentially processing a straight frame 8 using only one progressive mold. It includes. That is, according to the embodiments of the present invention, the housing for the LCD module using a straight frame 8 that is continuously processed, rather than using a flat plate cut to the size of the LCD module as in the conventional manufacturing method Is manufactured. When press working by such a progressive mold, the linear frame 8 can be produced at a speed of about 60 to 300 per minute depending on the performance of the press. In addition, in such a straight frame manufacturing step, a blanking, notching, and a piercing process may be performed together with the straight frame 8, and L bending and Z bending may also be simultaneously performed in the width direction of the straight frame 8. .

In this way, when manufacturing the housing for the LCD module using the straight frame 8, there is no need to remove the unnecessary central plate portion later, there is an effect that can significantly reduce the material cost. In addition, the progressive mold has a very high processing speed, so that the production speed and productivity can be further improved.

On the other hand, the straight frame 8 processed in this way is transferred to the next process using a conveying means such as a conveyor belt. Hereinafter, various embodiments of the present invention for a manufacturing method for manufacturing a housing for an LCD module using the transferred straight frame will be described in detail with reference to the drawings.

2A to 2D are views sequentially showing a method of manufacturing a housing for an LCD module according to a first embodiment of the present invention.

First, as described above, a straight frame 10 having a shape extending in one direction through a straight frame manufacturing step is provided (see FIG. 2A).

In the straight frame manufacturing step, L bending and Z bending may be simultaneously performed in the width direction of the straight frame. However, in FIG. 2A, a straight frame 10 without L bending and Z bending is illustrated for convenience of understanding. The straight frame 10 may include a plurality of horizontal frames 10a and a vertical frame 10b, and a notch 11 for bending may be formed. In addition, in the present embodiment, the extension part 13 is formed at one end of the straight frame 10.

The plurality of horizontal frames 10a and the vertical frames 10b are portions corresponding to one side of the housing when the straight frame 10 is bent to form the frame of the housing for the LCD module, as shown in FIG. 2B. In the present embodiment, two pairs of horizontal frames 10a and vertical frames 10b are provided in the straight frame 10 to form a rectangular appearance, but combinations of various horizontal frames and vertical frames may be performed according to the external shape of the LCD module. Equipped with a straight frame 10, which is also within the scope of the present invention.

The notch 11 for folding is formed by cutting in one side to the predetermined part of the linear frame 10 in the longitudinal direction. Specifically, the notch 11 for bending is formed between the horizontal frame 10a and the vertical frame 10b which adjoin each other of the linear frame 10. FIG. By forming the notch 11 for bending as described above, when the straight frame 10 is bent to form the housing of the housing, the horizontal frame 10a and the vertical frame 10b do not interfere with each other. 10) can be bent smoothly.

In addition, although not shown, a circular hole may be further formed at the end of the notch 11 for bending, that is, at the vertex portion of the notch 11 for V-shape. In the case where the circular hole is formed, when the inner end of the notch 11 for folding is folded at the time of bending the straight frame 10, the contact surface can be reduced to a minimum, thereby preventing the machining of the bent portion. In the bending process, the inside of the notch 11 for bending can be prevented from touching first, so that the bending process can be performed more smoothly.

Meanwhile, an extension part 13 is formed at one end of the straight frame 10. That is, the extension part 13 is formed to protrude in the longitudinal direction of the straight frame 10 at one end of the straight frame 10. The extension 13 is coupled to the other end of the linear frame 10, the specific configuration and operation will be described in detail with reference to Figures 2b to 2d later.

Next, a bending step of bending the straight frame 10 so as to form the horizontal frame 10a and the vertical frame 10b is performed.

That is, the linear frame 10 is continuously bent in one direction so that the horizontal frame 10a and the vertical frame 10b substantially form a housing frame for the LCD module, and the horizontal frame 10a and the vertically processed vertical frame 10a. The ends of the frame 10b abut against each other to form a polygonal housing frame. In this embodiment, since two pairs of the horizontal frame 10a and the vertical frame 10b are provided, the rectangular housing appearance is formed.

When forming a rectangular housing appearance as described above, the extension part 13 formed at one end of the straight frame 10 is bent in the same direction as the bending direction of the straight frame 10 and the other end of the straight frame 10. Arranged overlapping each other (see FIG. 2B). In the present embodiment, an extension part 13 is formed at one end of the horizontal frame 10a, and the extension part 13 is disposed to overlap an inner side of the adjacent vertical frame 10b.

Next, the extension 13 and the vertical frame 10b of the overlapped horizontal frame 10a are coupled to each other using a clinching method (see FIG. 2C).

That is, the horizontal frame 10a using the clinching method of arranging the extension 13 and the vertical frame 10b of the horizontal frame 10a overlapped with each other between a pair of male and female clinching equipments 15 and then pressurizing them. ) And the vertical frame 10b are bonded to each other. In this embodiment, although the mechanical clinching method of joining the extension portion 13 and the vertical frame 10b of the horizontal frame 10a overlapped with each other by mechanical pressing is used, the horizontal frame 10a overlapped with each other is used. By disposing and pressing a separate coupling member on the extension portion 13 and the vertical frame 10b of the), the self-piercing clean in which the horizontal frame 10a and the vertical frame 10b are mutually bonded through this coupling member. A quenching method may be used, which is also within the scope of the present invention.

By such a clinching method, the horizontal frame 10a and the vertical frame 10b are bonded to each other, so that the housing 19 for the LCD module can be easily manufactured. That is, since the housing 19 for the LCD module can be manufactured using a clinching method after bending a straight frame, instead of going through a complicated process using a plurality of mold machines, the manufacturing process is performed. It is simple and the production speed can be improved. In addition, the material cost can be greatly reduced when the housing is manufactured because the work of cutting out unnecessary parts inside the flat plate is not necessary.

On the other hand, in the present embodiment, since the pressure is applied from the outside of the housing 19 to the inward direction by using the clinching method, the overlapping portion of the extension portion 13 and the vertical frame 10b is inside the housing 19 (negative in the figure). Protrusion 17 formed in the y-axis direction). Specifically, as shown in the enlarged view of FIG. 2D, circular protrusions 17 may be formed at two locations in the vertical direction at the overlapping portions of the extension part 13 and the vertical frame 10b.

As such, the protrusion 17 protrudes to the inside of the housing 19, so that the outer surface of the LCD module housing 19, that is, the housing that is substantially visible to the user when the LCD module is coupled to the housing 19 ( The outer surface of 19 may be smoothly formed.

3A to 3C are views sequentially showing a method of manufacturing a housing for an LCD module according to a second embodiment of the present invention.

In the present embodiment, unlike the first embodiment, extension portions 23a and 23b are provided at both ends of the straight frame 20, respectively. That is, a straight frame 20 having a horizontal frame 20a and a vertical frame 20b is provided through a manufacturing step of the straight frame 20, and both ends of the straight frame 20, that is, the horizontal frame 20a are provided. Extension portions 23a and 23b are formed at one end of the one end and one end of the vertical frame 20b, respectively. (See Figure 3A)

Next, as illustrated in FIG. 3B, a bending step of bending the straight frame 20 to form the horizontal frame 20a and the vertical frame 20b is performed. In this embodiment, the bending frame is in contact with each other. The end portion of 20) is joined by a caulking method.

That is, the extension part 23a formed at one end of the horizontal frame 20a and the extension part 23b formed at one end of the vertical frame 20b are hooked and then coupled to each other. (See FIG. 3C) Then, the ends of the straight frames 20 which are in contact with each other are joined to each other by tapping with a caulking tool such as a caulking tool to fill the gap between the extensions 23a and 23b.

By this caulking method, the horizontal frame 20a and the vertical frame 20b are bonded to each other, so that the housing 29 for the LCD module can be easily manufactured. That is, since the housing for the LCD module can be manufactured by using the caulking method after bending the straight frame, the manufacturing process can be simplified and the production speed can be improved.

4A to 4B are views sequentially showing a method of manufacturing a housing for an LCD module according to a third embodiment of the present invention.

In the present embodiment, unlike the first embodiment, the protrusion 33 is formed at one end of the straight frame 30, and the concave shape has a shape in which the protrusion 33 is doped with the protrusion 33 at the other end. The part 35 is formed. That is, a straight frame 30 having a horizontal frame 30a and a vertical frame 30b is provided through a straight frame manufacturing step (see FIG. 4A), and protrusions formed at both ends of the straight frame 20 are engaged with each other. The part 33 and the recessed part 35 are formed, respectively.

In the present embodiment, the protrusion part 33 is formed at the end of the horizontal frame 30a, and the concave part 35 is formed at the end of the vertical frame 30b to be coupled with the horizontal frame 30a, but is not limited thereto. The protrusion 33 and the recess 35 may be formed at opposite positions, respectively.

Next, the straight frame 30 is continuously bent along one direction, and the ends of the bent horizontal frame 30a and the vertical frame 30b abut each other to form a polygonal housing frame. Specifically, the end of the horizontal frame 30a is further bent so that the protrusion 33 formed at the end of the horizontal frame 30a and the concave portion 35 formed at the end of the vertical frame 30b are engaged with each other. It forms a substantially rectangular housing frame.

Next, the projections 33 and the concave portions 35, which are configured to engage with each other, are mutually coupled by interfitting to form an LCD module housing 39 in which the horizontal frame 30a and the vertical frame 30b are bonded to each other. Manufacture. (See Figure 4b)

In this way, since the horizontal frame 30a and the vertical frame 30b can be easily joined by the interference fitting, the production speed can be further improved.

5A to 5C are views sequentially showing a method of manufacturing a housing for an LCD module according to a fourth embodiment of the present invention.

First, a plurality of straight frame 40 is provided through a straight frame manufacturing step. In the present embodiment, two pairs of the horizontal frame 40a and the vertical frame 40b are provided. Unlike the first embodiment, the horizontal frame 40a and the vertical frame 40b are separated from each other. do. In addition, extensions 43 and 45 are formed at one end of each of the horizontal frame 40a and the vertical frame 40b.

Next, a rectangular housing frame is formed by arranging the end portions of the horizontal frame 40a and the vertical frame 40b to abut each other. (See Figure 5b)

That is, the end part in which the extension part 43 of the horizontal frame 40a was formed is arrange | positioned so that it may contact the end part in which the extension part 45 of the vertical frame 40b is not formed, and the extension part 45 of the vertical frame 40b is carried out. By arranging the end where the) is formed to abut the end where the extension portion 43 of the horizontal frame 40a is not formed, a substantially rectangular housing frame can be formed.

In this case, the extension parts 43 and 45 are arranged to overlap with the inner parts of the respective frames as in the first embodiment, and the plurality of linear frames 40 are arranged as described above to form the housing frame body. An overlapping portion of the extension parts 43 and 45 and the straight frame 40 is formed at the corner part.

Next, similarly to the first embodiment, the extension parts 43 and 45 and the ends of the straight frame 40 which are arranged to be in contact with each other are joined to each other using a clinching method to manufacture the housing 49 for the LCD module. . (See Figure 5c)

In the present embodiment, since four linear frames 40 separately produced as described above are combined with each other to manufacture a rectangular housing 49, the protrusions 47 protruding due to clinching are formed in the housing 49. It is formed in each corner part.

By manufacturing the housing 49 by using the plurality of linear frames 40 separately produced in this way, there is no need to bend the linear frame 40 additionally, thereby making the manufacturing process simpler.

In addition, in the present embodiment, the end portions of the linear frames 40 which are in contact with each other by using a clinching method are fixed to each other by coupling to each other, but the present invention is not limited thereto, and through other coupling means such as caulking or interference fitting. End portions of the straight frame may be coupled to each other.

Further, in this embodiment, since the ends of the straight frame 40 are coupled to each other at each corner portion of the housing 49, the protrusions 47 are formed at each corner portion of the housing 49, but the protrusions are provided at the housing. It may be formed at the edge portion rather than the corner portion of the. That is, a pair of vertical frames arranged opposite to each other after bending both ends of the vertical frame in the same direction and arranging these bent ends to face both ends of the opposite vertical frame that are likewise bent. By arranging linear horizontal frames therebetween and mutually joining, a rectangular LCD module housing with protrusions formed at the edge of the housing may be manufactured, which is also within the scope of the present invention.

6A to 6C are views sequentially illustrating a method of manufacturing a housing for an LCD module according to a fifth embodiment of the present invention.

In the present embodiment, similarly to the second embodiment, extension portions 53 are formed at both ends of the straight frame 50, respectively. That is, extension portions 53 are formed at one end of the horizontal frame 50a and one end of the vertical frame 50b, respectively. Unlike the second embodiment, these extension parts 53 are formed in a shape in which a part of the extension parts 53 are extracted. Specifically, the part corresponding to the boundary which is bent when L-bending the straight frame 50 is formed to have a partially drawn shape.

Next, as illustrated in FIG. 6B, a bending step of bending the straight frame 50 to form the horizontal frame 50a and the vertical frame 50b is performed. In this embodiment, the bending frame is in contact with each other. The end portion of 50) is joined by laser welding.

That is, as shown in the enlarged view of FIG. 6C, the end surfaces of the vertical frames 50b are abutted with the inner surfaces of the horizontal frames 50a to form a rectangular housing frame, and then the portions which are in contact with each other are laser The housing 59 for the LCD module can be manufactured by bonding to each other by welding.

By using the laser welding method in this way, it is possible to manufacture the housing 59 which is excellent in fixing force while reducing thermal strain to the material. In addition, by contacting the end surface of the vertical frame 50b and the inner surface of the horizontal frame 50a and then joining the abutted portions by laser welding, the fixing force of the abutted portions can be further improved. have.

In addition, in the present embodiment, since the extension part of the straight frame 50 is partially formed, the parts contacted with each other when bending the straight frame 50 to form a polygonal housing frame as shown in FIG. 6C. The opening 55 is formed in the.

Specifically, when the L frame is bent to form the side surfaces 50a1 and 50b1 and the upper surfaces 50a2 and 50b2, the curved boundary portion is pushed out in the longitudinal direction of the straight frame 50 to the outside. Some stretch. Therefore, when the ends of the horizontal frame 50a and the vertical frame 50b abut each other, it is difficult to form a close contact with each other.

However, in the present embodiment, since the extension portion 53 formed at the boundary portion between the side surfaces 50a1 and 50b1 of the straight frame 50 and the upper surfaces 50a2 and 50b2 is provided inward, the horizontal frame 50a and When the vertical frame 50b is in contact with each other, the openings 55 are formed, and the opposing surfaces may be in close contact with each other.

Although the preferred embodiments of the present invention have been described above, the present invention is not limited thereto, and various modifications or changes can be made within the scope of the claims and the detailed description of the invention and the accompanying drawings. In addition, it is natural that it belongs to the scope of the present invention.

As described above, according to the manufacturing method of the LCD module housing according to the present invention and the housing manufactured by the same, since the linear frame is continuously taken out using only one progressive mold, the production speed is reduced to the existing mold. It can process at a much faster speed than the method by the method.

In addition, after the straight frame is processed, the straight frame is bent to form a rectangular housing frame, so that the material cost can be greatly reduced compared to the prior art, and thus a very economical effect can be obtained.

In addition, since a large number of expensive mold machines are not required and only one progressive mold is needed, facility investment cost according to mold installation can be reduced.

In addition, since the end portions of the linear frames which are in contact with each other are mutually bonded and fixed by using a mechanical coupling method such as clinching, caulking or the like, or a method such as interference fitting or laser welding, the manufacturing process is simple and has sufficient mechanical strength. The housing for the LCD module can be easily manufactured.

In addition, by providing a plurality of linear frames and the ends of the linear frames abut each other to be coupled to each other, a polygonal LCD module housing can be easily manufactured without going through a bending process.

Claims (8)

In the manufacturing method of the housing for an LCD module, A linear frame manufacturing step of successively pressing the module housing frame in a straight line by using a progressive mold; And forming a polygonal housing frame by bringing the ends of the linear frame into contact with each other, and then joining the end portions joined to each other by a mechanical coupling method. The method of manufacturing a housing for an LCD module according to claim 1, wherein the mechanical coupling method is caulking or clinching. In the manufacturing method of the housing for an LCD module, A linear frame manufacturing step of successively pressing a straight module housing frame having protrusions and recesses at the ends by using a progressive die; And engaging the ends of the linear frame with each other to form a polygonal housing frame, and then engaging the protrusions and the recesses provided at the ends of the linear frame with each other so as to engage each other by interference fitting. Method for manufacturing a housing for an LCD module, characterized in that. In the manufacturing method of the housing for an LCD module, A straight frame manufacturing step of successively press-processing the module housing frame in a straight line using a progressive mold; And a joining step of engaging one end surface of the linear frame with the inner surface of the other end to form a polygonal housing frame, and then joining the parts joined to each other by laser welding. Method of manufacturing a housing for a module. The method of claim 4, wherein the linear frame is bent to form an upper surface and a side surface, and an opening is formed in a boundary portion between the upper surface and the side surface of the abutted portions. . The method of manufacturing a housing for an LCD module according to any one of claims 1 to 5, further comprising a bending step of bending the straight frame to form a horizontal frame and a vertical frame. 7. The method of manufacturing a housing for an LCD module according to claim 6, wherein a notch for bending is formed at a boundary between the adjacent vertical frame and the horizontal frame of the straight frame. A plurality of vertical and horizontal frames constituting the polygon, It is formed by the manufacturing method of Claim 6 provided with the extension part formed in the one end or both ends of the said vertical frame and the horizontal frame, and couple | bonded with an adjacent horizontal frame or a vertical frame, It characterized by the above-mentioned. Housing for LCD module.

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