TW201615320A - Laser welding structure of aluminum extension front frame of excessive-part type display - Google Patents

Abstract

A laser welding structure of an aluminum extension front frame of an excessive-part type display includes: at least a first front frame workpiece and a second front frame workpiece, wherein an end part of the first front frame workpiece is provided with a first protrusion part and a first recess part; the end part of the second front frame workpiece is provided with a second protrusion part and a second recess part; the first protrusion part and the second recess part are complementary after the end part of the first front frame workpiece and the end part of the second front frame workpiece are mutually docked with each other, and the first recess part and the second protrusion part are complementary and mutually located with each other, then welding parts are arranged at local or full docking positions of the first front frame workpiece and the second front frame workpieces by using a laser welding technology, so that the first front frame workpiece and the second front frame workpiece form the display front frame.

Description

Laser welded structure of multi-piece display aluminum extruded front frame

The present invention relates to a front frame structure for mounting in front of a frame of a flat display, and more particularly to a structure in which a plurality of aluminum extruded front frame workpieces are formed into a large-sized front frame by laser welding.

In the structure of a flat panel display such as a liquid crystal or a plasma, in addition to key components such as a display panel, a backlight module, a polarizing plate, and the like, a front frame as a frame member to be mounted in front of the display is included; The front frame is generally manufactured by stamping a metal sheet.

The size of the front frame that can be manufactured by stamping and forming a metal sheet involves the tonnage of the press forming machine. The higher the tonnage, the larger the volume of the machine, and the more factory space is occupied. Therefore, unless there is a special requirement for the specification and it is necessary to manufacture a large-sized front frame by integral molding, otherwise, based on economic scale considerations, a plurality of small-sized front frame workpieces of a plurality of different parts are generally manufactured by a press forming machine. Then fix the front frame workpieces into a large size front frame (ie "multi-piece front frame").

As shown in FIG. 1A and FIG. B, the conventional aluminum extruded multi-piece display front frame A is constructed by arranging different sizes of the small-sized front frame workpieces A1 and A1 after molding. The hole is then connected to the two front frame workpieces A1 and A2 by a connecting member B (for example, an angle iron), and then the connecting member B and the two front frame workpieces A1 and A2 are locked by screws C to be adjacent. The small-sized front frame workpiece fixing group constitutes a large-sized front frame; therefore, the manufacture of the conventional multi-piece display front frame is not only increased The labor cost of the screw material, the connecting member, and the lock screw is added, and the production efficiency is low.

It is an object of the present invention to provide a laser welded structure of a multi-piece display front frame that can produce a large-sized display front frame with higher efficiency and lower cost.

A feature of the present invention is that a complementary convex portion and a concave portion are respectively disposed at ends of at least one of the first front frame workpiece and the second front frame workpiece; and the first front frame is obtained by complementing the convex portion and the concave portion The workpiece and the second front frame workpiece are quickly positioned, and even in the complementary structure of the convex portion and the concave portion, a connecting member is further disposed to assist positioning, and then the laser welding technique is used at the docking portion, and the connecting member and the first and second front frames are connected. Laser welding is applied to the joint of the workpiece, so that the first and second front frame workpiece groups constitute a complete display front frame.

The technical means of the first embodiment of the present invention uses aluminum extrusion molding technology to respectively form a first front frame workpiece and a second front frame workpiece of relatively small size, and uses a machining method in which the workpiece of the first front frame is Forming a first protrusion and a first recess; and forming a second protrusion and a second recess at an end of the second front frame workpiece; an end of the first front frame workpiece and the second When the ends of the front frame workpiece are butted, the first convex portion is complementary to the second concave portion, and the first concave portion and the second convex portion are complementary to each other, and the first or second front frame workpieces are partially or completely docked. The position is set by laser welding technology to make the first and second front frame workpiece groups form a complete display front frame.

In the foregoing first embodiment, the aluminum material may be extruded, such that the first front frame workpiece comprises a first vertical wall and two first transverse walls, and one side of the two first transverse walls are respectively connected to the The opposite sides of the first vertical wall, the second front frame workpiece comprises a second vertical wall and two second transverse walls, and one side of the two second transverse walls respectively connect opposite sides of the second vertical wall, Make the first The first and second front frame workpieces are viewed from a longitudinal direction thereof, and the first convex portion and the first concave portion are continuously disposed on two sides of the first front frame workpiece to form a stepped shape, and the second convex portion is formed. The second concave portion is continuously provided on both sides of the second front frame workpiece to form a stepped shape.

The second embodiment of the present invention can be based on the basis of the foregoing first embodiment structure Further, a protrusion extending toward the longitudinal direction thereof is formed at the end of the first vertical wall, and the inner side surface of the second vertical wall is provided with a groove complementary to the shape of the protrusion, when the first front frame workpiece is When the second front frame workpieces are butted together, the convex block is inserted into the groove to obtain auxiliary positioning, and the partial or all butt joint positions of the first and second front frame workpieces, and the joint of the convex block and the groove The welded parts are all set by laser welding.

The third embodiment of the present creation can be based on the basis of the foregoing first embodiment structure And arranging at least one through hole in the first vertical wall. After the first front frame workpiece and the second front frame workpiece are mutually abutted, the perforation is corresponding to the second vertical wall position of the second front frame workpiece, and then the first Part or all of the mating positions of the first and second front frame workpieces, and the welds are provided by laser welding in the perforations.

The technical means of the fourth embodiment of the present invention is formed by aluminum extrusion molding technology. Forming a first front frame workpiece and a second front frame workpiece of a relatively small size, and using a machining method, a first notch is formed at an end of the first front frame workpiece, and the second front frame workpiece is The end portion is provided with a second notch symmetrical with the first notch; and a first connecting member is provided for connecting to the first notch and the second notch; when the end of the first front frame workpiece is After the ends of the second front frame workpiece are butted, the first connecting component is placed in the recessed space formed by the first notch and the second notch, and the first connecting component and the first and second notches are located. The joint position is set by the laser welding technique.

The fifth embodiment of the present invention can be based on the basis of the foregoing fourth embodiment structure The first notch and the second notch are respectively set to be symmetrical L-shaped first notches and second notches, and a second connecting element is formed in a meandering shape to make the second connection of the meander shape The component may be positioned to be complementary to the two recessed spaces in which the first recess and the second recess are symmetrically juxtaposed.

The first front frame workpiece and the second front frame workpiece of the present invention of the foregoing embodiments may be extruded by aluminum to have a T shape, an L shape or an F shape as viewed from the longitudinal direction thereof.

The invention utilizes the aluminum extrusion molding technology to form a small-sized front frame workpiece with a positioning structure, and then cooperates with the laser welding technology to connect and fix the joints of the two front frame workpieces, so that the multi-piece front frame can be quickly positioned and combined when combined. And maintain the original structural strength, reduce material and labor costs, and increase production speed.

"this invention"

1A, 1B, 1C, 1D, 1E, 1F, 1G, 1H‧‧‧ first front frame workpiece

10‧‧‧First vertical wall

101‧‧‧ first transverse wall

11‧‧‧First convex

12‧‧‧ First recess

13‧‧‧Bumps

14‧‧‧Perforation

15‧‧‧ first gap

16‧‧‧ first notch

2A, 2B, 2C, 2D, 2E, 2F, 2G, 2H‧‧‧ second front frame workpiece

20‧‧‧Second vertical wall

201‧‧‧ second transverse wall

21‧‧‧second convex

22‧‧‧Second recess

23‧‧‧ Groove

25‧‧‧ second gap

26‧‧‧second notch

3‧‧‧First connecting element

4‧‧‧Second connection element

"Knowledge"

A‧‧‧Display front frame

A1, A2‧‧‧ front frame workpiece

B‧‧‧Connecting components

C‧‧‧screw

The first A is a plan view showing the structure of the front frame of the conventional display; the first B is a partial enlarged view of the L area of the first A; the second A is the first front frame of the molded body of the present invention. FIG. 2B is a perspective view showing the first front frame workpiece and the second front frame workpiece in the first embodiment of the present invention; FIG. A schematic plan view showing the structure and combination relationship between the first front frame workpiece and the second front frame workpiece in the first embodiment of the present invention; the third A is a view showing the first front frame workpiece and the second front frame workpiece structure after molding according to the present invention. The second embodiment is a perspective view showing the first front frame workpiece and the second front frame workpiece in the second embodiment of the present invention. FIG. 3 is a schematic plan view showing the structure and combination relationship between the first front frame workpiece and the second front frame workpiece according to the second embodiment of the present invention; FIG. 4A is a view showing the molding of the present invention. A perspective view of a third embodiment of a front frame workpiece and a second front frame workpiece structure; and a fourth perspective view showing a first front frame workpiece and a second front frame workpiece of the third embodiment of the present invention; FIG. 4C is a plan view showing the structure and combination relationship between the first front frame workpiece and the second front frame workpiece according to the third embodiment of the present invention; FIG. 5A is a view showing the first front frame workpiece and the first shape after molding according to the present invention; A perspective view of a fourth embodiment of a workpiece structure of a front frame; a fifth schematic view showing a first front frame workpiece and a second front frame workpiece of the fourth embodiment of the present invention; A plan view showing the structure and combination relationship between the first front frame workpiece and the second front frame workpiece according to the fourth embodiment of the present invention; FIG. 6A is a view showing the structure of the first front frame workpiece and the second front frame workpiece after molding according to the present invention. Fifth embodiment Figure 6 is a perspective view showing the first front frame workpiece and the second front frame workpiece in the fifth embodiment of the present invention after welding; the sixth C is a first front frame showing the fifth embodiment of the present invention. Schematic diagram of the structure and combination relationship between the workpiece and the second front frame; FIG. 7A is a perspective view showing the first and second front frame workpieces of the present invention which can be formed into a T shape Intent; FIG. 7B is a perspective view showing an embodiment in which the first and second front frame workpieces of the present invention can be formed into an L shape; and FIG. 7C is a view showing that the first and second front frame workpieces of the present invention can be formed into F A perspective view of an embodiment of the shape.

The embodiments of the present invention will be described in more detail below with reference to the drawings and the <RTIgt; </ RTI> <RTIgt; </ RTI> <RTIgt; </ RTI> <RTIgt; </ RTI> <RTIgt;

The second embodiment A, the second B and the second C show the first embodiment of the present invention, which first forms an aluminum material into a first front frame workpiece 1A and a second front frame workpiece by an aluminum extrusion molding machine. 2A, the first and second front frame workpieces 1A, 2A are only a schematic form, and are used to represent the combined structure between the two components, and do not mean that the front frame of the display is only composed of the first and second front frame component groups. The front frame of the display can be designed in the shape, size and quantity according to the actual required specifications.

The first front frame workpiece 1A and the second front frame workpiece 2A shown in the second to second C drawings are extruded by aluminum to have a meander shape as viewed from the longitudinal direction thereof; more specifically, the first front frame The workpiece 1A includes a first vertical wall 10 and two first transverse walls 101. One side of the two first transverse walls 101 is respectively connected to opposite sides of the first vertical wall 10; the second front frame workpiece 2A includes a a second vertical wall 20 and two second transverse walls 201, one side of the two second transverse walls 201 are respectively connected to opposite sides of the second vertical wall 20, thereby making the first and second front frame workpieces 1A, 2A is viewed from its length as a dome.

In the first embodiment, at least one end portion of the first front frame workpiece 1A is formed with a first convex portion 11 and a first concave portion 12, and the first convex portion 11 and the first concave portion 12 are continuously provided at the first portion. The first vertical wall 10 of the front frame workpiece 1A and the first horizontal wall 101 of the lower side (ie, the two sides of the dome shape) form a step shape; the end of the second front frame workpiece 2A is provided with a second convex portion 21 and a a second recess 22, the second protrusion 21 and the second recess 22 are continuously disposed on the second vertical wall 20 of the second front frame workpiece 2A and the second lateral wall 201 on the lower side (ie, both sides of the dome) Formed in a stepped shape. With this configuration, the end of the first front frame workpiece 1A and the end of the second front frame workpiece 2A can abut each other, thereby making the first convex portion 11 and the second concave portion 22 complementary, and the first concave portion 12 and the second portion The convex portions 21 are complementarily and quickly positioned (as shown in FIG. 2B), and then laser welded to form a welded portion at a partial joint or all joints of the first and second front frame workpieces 1A, 2A to form a welded portion. The first and second front frame workpieces 1A, 2A are connected and fixed together; by the foregoing technique, a plurality of front frame workpieces are butted together and then welded, and a complete front frame for the display can be constructed.

The third A, third B and third C drawings show a second embodiment of the present invention, Wherein, the first front frame workpiece 1B is extruded by aluminum to include a first vertical wall 10 and two first transverse walls 101, and one side of the two first transverse walls 101 is respectively connected to the first vertical wall. The second front frame workpiece 2B is extruded by aluminum to include a second vertical wall 20 and two second transverse walls 201, and one side of the two second transverse walls 201 is connected to the second vertical The opposite sides of the wall 20, whereby the first and second front frame workpieces 1B, 2B are viewed from the length thereof as a dome shape. However, in the second embodiment, the end portion of the first vertical wall 10 of the first front frame workpiece 1B is formed with a projection 13 extending to a proper length in the longitudinal direction thereof, and the second vertical wall of the second front frame workpiece 2B is formed. The side surface is provided with a groove 23 complementary to the shape of the protrusion 13; by this structure, the end of the first front frame workpiece 1B and the end of the second front frame workpiece 2B can be mutually abutted, thereby making the first convex portion 11 and The second recess 22 is complementary, the first recess 12 and the second protrusion 21 are complementary, and the bump 13 is inserted into the groove 23 for rapid positioning (as shown in FIG. 3B), and then the first and second are laser welding techniques. Part or all of the joints of the front frame workpieces 1B, 2B, and the bumps 13 Laser welding is performed at the joint of the groove 23 to form a welded portion, and the first and second front frame workpieces 1B and 2B are connected and fixed together; by the above-mentioned technique, a plurality of front frame workpieces are butted to each other and then welded. A complete display can be used with the front frame.

The fourth A, fourth B and fourth C drawings show a third embodiment of the present invention, Wherein, the first front frame workpiece 1C is extruded by aluminum to include a first vertical wall 10 and two first transverse walls 101, and one side of the two first transverse walls 101 is respectively connected to the first vertical wall. The second front frame workpiece 2C is extruded by aluminum to include a second vertical wall 20 and two second transverse walls 201, and one side of the two second transverse walls 201 is respectively connected to the second vertical The opposite sides of the wall 20, whereby the first and second front frame workpieces 1B, 2B are viewed from the length thereof as a dome shape. However, in the third embodiment, the first vertical wall 10 of the first front frame workpiece 1C is provided with at least one perforation 14, which may be elongate or of any suitable shape. With this configuration, the end of the first front frame workpiece 1C and the end of the second front frame workpiece 2C can abut each other, thereby making the first convex portion 11 and the second concave portion 22 complementary, the first concave portion 12 and the second convex portion 21 is complementary, while the perforation 14 is positioned rapidly corresponding to the inner side of the position of the second recess 21 of the second vertical wall 20 of the second front frame workpiece 2C (ie, the direction toward the dome opening) (eg, FIG. 4B) And then, by laser welding technology, laser welding is performed at part or all of the joints of the first and second front frame workpieces 1C, 2C, and the through holes 14 are formed to form the welded portion, so that the first and second front frame workpieces 1C, The 2C connections are fixed together; by the aforementioned technique, a plurality of front frame workpieces are butted together and then welded, and a complete front frame for the display can be constructed.

5A, 5B, and 5C show a fourth embodiment of the present invention, Wherein, the first front frame workpiece 1D is extruded by aluminum to include a first vertical wall 10 and two first transverse walls 101, and one side of the two first transverse walls 101 is respectively connected to the first vertical wall. The opposite sides of the second side; the second front frame workpiece 2D is extruded from aluminum to include a second vertical wall 20 and two second transverse walls 201, one side of the two second transverse walls 201 are respectively connected to opposite sides of the second vertical wall 20, whereby the first and second front frame workpieces 1D, 2D are viewed from the longitudinal direction thereof. However, in the fourth embodiment, the first front frame workpiece 1D has a first notch 15 at its end, and a second notch 25 symmetrical with the first notch 15 at the end of the second front frame workpiece 2D. In addition, a first connecting element 3 is provided, and the shape of the first connecting element 3 corresponds to a recessed space formed by the first notch 15 and the second notch 25 being symmetrically juxtaposed. With this configuration, the end of the first front frame workpiece 1D and the end of the second front frame workpiece 2D can be butted together, so that the first notch 15 and the second notch 25 are symmetrically juxtaposed to form a recessed space, and then A connecting element 3 is placed in the recessed space for rapid positioning (as shown in FIG. 5B), and laser welding is performed at the junction of the first connecting member 3 and the first notch 15 and the second notch 25 by laser welding. The welding portion is formed to fix the first and second front frame workpieces 1D and 2D together; and the plurality of front frame workpieces are butted together and then welded by the foregoing technique to form a complete front frame for the display.

6A, 6B, and 6C show a fifth embodiment of the present invention, Wherein, the first front frame workpiece 1E is extruded by aluminum to include a first vertical wall 10 and two first transverse walls 101, and one side of the two first transverse walls 101 is respectively connected to the first vertical wall. The second front frame workpiece 2E is extruded by aluminum to include a second vertical wall 20 and two second transverse walls 201, and one side of the two second transverse walls 201 is connected to the second vertical The opposite sides of the wall 20, whereby the first and second front frame workpieces 1E, 2E are viewed from the length thereof as a dome shape. However, in the fifth embodiment, the end of the first front frame workpiece 1E is provided with an L-shaped first recess 16 and at the end of the second front frame workpiece 2D is provided with a first recess 16 a symmetrical L-shaped second recess 26; further provided with a second connecting element 4 in the shape of a weir, the second connecting element 4 having a shape corresponding to the first recess 16 and the second recess 26 being symmetrically juxtaposed The recessed space formed. With this structure, the end of the first front frame workpiece 1E The ends of the second front frame workpiece 2E can be mutually abutted, so that the first recess 16 and the second recess 26 are juxtaposed symmetrically to form a recessed space, and then the second connecting element 4 is placed in the recessed space. Quickly positioning (as shown in Figure 6B), then laser welding to form a welded portion at the junction of the second connecting member 4 with the first recess 16 and the second recess 26, so that the first and second The front frame workpieces 1E, 2E are connected and fixed together; by the foregoing technique, a plurality of front frame workpieces are butted together and then welded, and a complete front frame for the display can be constructed.

The first front frame workpieces 1A, 1B, 1C, 1D, 1E and the second front frame workpiece 2A, 2B, 2C, 2D, 2E are all formed into a crucible shape by aluminum extrusion technology; however, the first front frame workpiece 1F may be formed to include a first vertical as shown in FIG. 7A according to the requirements of the display product. The wall 10 is connected to a first transverse wall 101, one side of which is connected to an intermediate position of a side of the first vertical wall 10, and the second front frame workpiece 2F is also shaped to include a second vertical wall 20. And a second lateral wall 201, one side of the second lateral wall 201 is connected to an intermediate position of a side surface of the second vertical wall 20, so that the first and second front frame workpieces 1F, 2F are T-shaped as viewed from the longitudinal direction thereof The structure of the foregoing first embodiment to the fifth embodiment can be applied to the abutting and soldering structure of the T-shaped first front frame workpiece 1F and the second front frame workpiece 2F, and details are not described herein again.

As shown in Figure 7B, this creation can also shape the first front frame workpiece 1G to include A first vertical wall 10 and a first transverse wall 101, one side of the first transverse wall 101 is connected to one side of the first vertical wall 10, and the second front frame workpiece 2G is also shaped to include a second vertical wall 20 And a second lateral wall 201, one side of the second horizontal wall 201 is connected to one side of the second vertical wall 20, so that the first and second front frame workpieces 1G, 2G are L-shaped when viewed from the longitudinal direction thereof; The structure of the first embodiment to the fifth embodiment can be applied to the abutting and welding structure of the L-shaped first front frame workpiece 1G and the second front frame workpiece 2G, and details are not described herein again.

As shown in Figure 7C, this creation can also form the first front frame workpiece 1H into a package. A first vertical wall 10 and two first transverse walls 101 are included, one side of one of the first transverse walls 101 is connected to one side of the first vertical wall 10, and the other side of the other first horizontal wall 101 is connected to the first vertical An intermediate position of one side of the wall 10; the second front frame workpiece 2H is also formed to include a second vertical wall 20 and two second transverse walls 201, one of which is connected to the second side of the second transverse wall 201 One side of the vertical wall 20 and one side of the other second horizontal wall 201 are connected to an intermediate position of one side of the second vertical wall 20, so that the first and second front frame workpieces 1H, 2H are F-shaped when viewed from the longitudinal direction thereof; However, the structure of the first embodiment to the fifth embodiment can be applied to the abutting and welding structure of the F-shaped first front frame workpiece 1H and the second front frame workpiece 2H, and details are not described herein again.

In summary, the present invention utilizes an aluminum extrusion technique to form a small positioning structure. The front frame workpiece of the size is combined with the laser welding technology to fix the joints of the two front frame workpieces, so that the multi-piece front frame can be quickly positioned and combined while maintaining the original structural strength and the material is reduced. And labor costs, increase production speed, is a novelty and progressive invention.

The above is only a preferred embodiment for explaining the present invention, and is not intended to be It is intended that the present invention be construed as being limited by the scope of the invention.

1A‧‧‧ first front frame workpiece

10‧‧‧First vertical wall

101‧‧‧ first transverse wall

11‧‧‧First convex

12‧‧‧ First recess

2A‧‧‧Second front frame workpiece

20‧‧‧Second vertical wall

201‧‧‧ second transverse wall

21‧‧‧second convex

22‧‧‧Second recess

Claims (9)

A laser welding structure for a multi-piece display aluminum extrusion front frame, comprising at least a first front frame workpiece and a second front frame workpiece, wherein: the first front frame workpiece has a first convex portion at an end thereof And a first recess; and an end of the second front frame workpiece is provided with a second protrusion and a second recess; when the end of the first front frame workpiece is docked with the end of the second front frame workpiece, The first convex portion is complementary to the second concave portion, and the first concave portion and the second convex portion are complementary to each other, and a part or all of the abutting positions of the first and second front frame workpieces are disposed with the welded portion. The laser welding structure of the multi-piece display aluminum extrusion front frame according to the first aspect of the invention, wherein the first front frame workpiece and the second front frame workpiece are extruded by an aluminum material, so that the The first front frame workpiece comprises a first vertical wall and two first transverse walls, one side of the two first transverse walls respectively connected to opposite sides of the first vertical wall, and the second front frame workpiece comprises a second a vertical wall and two second transverse walls, wherein one side of the two second transverse walls are respectively connected to opposite sides of the second vertical wall, so that the first and second front frame workpieces are shaped like a dome from a length thereof. The first convex portion and the first concave portion are continuously disposed on two sides of the first front frame workpiece to form a step shape, and the second convex portion and the second concave portion are continuously disposed on the second front frame workpiece The sides of the dome form a stepped shape. The laser welded structure of the aluminum extruded front frame of the multi-piece display according to the second aspect of the invention, wherein the first vertical wall end is formed with a protrusion extending in a longitudinal direction thereof, and the second vertical wall The inner side surface is provided with a groove complementary to the shape of the protrusion. After the protrusion is inserted into the groove, the joint of the protrusion and the groove is further provided with a welded portion. The laser welding structure of the multi-piece display aluminum extrusion front frame according to the second aspect of the invention, wherein the first vertical wall is provided with at least one perforation, and the first and second front frame workpieces are butted to each other, the perforation Corresponding to the inner concave surface of the second vertical wall position, and the weld is further provided in the perforation. A laser welding structure of a multi-piece display aluminum extrusion front frame, comprising at least a first front frame workpiece and a second front frame workpiece, wherein: the first front frame workpiece has a first notch at an end thereof; An end of the second front frame workpiece is provided with a second notch symmetrical with the first notch; and a first connecting component is connected to the first notch and the second notch; the end of the first front frame workpiece After the portion is in contact with the end of the second front frame workpiece, the first connecting element is positioned by the recessed space formed by the first notch and the second notch, and the first connecting element and the first and second notches are positioned. The joint positions are all provided with welded portions. A laser welding structure for a multi-piece display aluminum extrusion front frame, comprising at least a first front frame workpiece and a second front frame workpiece, wherein: the first front frame workpiece has an L-shaped end a recess; an end of the second front frame workpiece is provided with an L-shaped second recess symmetrical with the first recess; and a second connecting element having a meandering shape connected to the first recess and The second recess; after the end of the first front frame workpiece abuts the end of the second front frame workpiece, the second connecting element is inserted into the recess formed by the first recess and the second recess Positioned by the space, the joint position of the second connecting element and the first and second recesses is provided with a welded portion. The laser welding structure of the aluminum extrusion front frame of the multi-piece display according to claim 1, 5 or 6, wherein the first front frame workpiece and the second front frame workpiece are extruded by aluminum material Forming, the first front frame workpiece comprises a first vertical wall and a first transverse wall, one side of the first transverse wall is connected to an intermediate position of a side of the first vertical wall, and the second front frame workpiece comprises a The second vertical wall and a second transverse wall, one side of the second horizontal wall is connected to an intermediate position of a side surface of the second vertical wall, so that the first and second front frame workpieces are T-shaped when viewed from the longitudinal direction thereof. The laser welding structure of the aluminum extrusion front frame of the multi-piece display according to claim 1, 5 or 6, wherein the first front frame workpiece and the second front frame workpiece are extruded from aluminum material The first front frame workpiece comprises a first vertical wall and a first transverse wall, one side of the first transverse wall is connected to one side of the first vertical wall, and the second front frame workpiece comprises a second vertical wall And a second lateral wall, one side of the second transverse wall is connected to one side of the second vertical wall, so that the first and second front frame workpieces are L-shaped when viewed from a longitudinal direction thereof. The laser welding structure of the aluminum extrusion front frame of the multi-piece display according to claim 1, 5 or 6, wherein the first front frame workpiece and the second front frame workpiece are extruded from aluminum material The first front frame workpiece comprises a first vertical wall and two first transverse walls, wherein one side of the first transverse wall connects one side of the first vertical wall and one side of the other first transverse wall An intermediate position connecting a side of the first vertical wall, the second front frame workpiece comprising a second vertical wall and two second transverse walls, wherein one of the second transverse walls is connected to the second vertical wall One side of the other second transverse wall is connected to an intermediate position of one side of the second vertical wall so that the first and second front frame workpieces are F-shaped when viewed from the longitudinal direction thereof.