WO2020124580A1

WO2020124580A1 - Fixing method for metal sheet and flexible display equipment

Info

Publication number: WO2020124580A1
Application number: PCT/CN2018/122772
Authority: WO
Inventors: 丁有翔
Original assignee: 深圳市柔宇科技有限公司
Priority date: 2018-12-21
Filing date: 2018-12-21
Publication date: 2020-06-25
Also published as: CN112638576A

Abstract

Disclosed is a fixing method for a metal sheet (10), the method comprising a step of arranging the metal sheet on an object, wherein a slot (30) is formed near a position where the metal sheet is to be welded, and the welding is performed on the sheet metal at the position to be welded, such that the metal sheet is welded to the object. Further disclosed is flexible display equipment (700). The slot releases the deformation of the metal sheet due to heating, preventing the metal sheet from being deformed by a larger amount due to being heated locally, therefore improving the welding effect.

Description

Fixing method of metal sheet and flexible display device

Technical field

The present application relates to the technical field of manufacturing processes, and in particular, to a metal sheet fixing method and a flexible display device.

Background technique

Metal sheets such as steel sheets, iron sheets, and aluminum sheets are usually used as supporting sheets to support various objects. With the advancement of technology and technology, the thickness of the metal sheet can now reach the micron level. However, correspondingly, the fixed welding of metal sheets is also challenged. Existing welding methods are likely to cause local deformation of ultra-thin metal sheets, which affects the welding effect.

Summary of the invention

The technical problem to be solved by the present application is to provide a method for fixing a metal sheet and a flexible display device, to solve the problem in the prior art that the ultra-thin metal sheet is locally deformed.

To solve the above technical problems, on the one hand, a metal sheet fixing method is provided, including:

The metal sheet is provided on the object, and the metal sheet is provided with a slot near the position to be welded;

Welding the metal sheet at the position to be welded, and welding the metal sheet to the object.

On the other hand, a flexible display device is provided, which includes a flexible display screen, a carrier, and a metal sheet, one side of the metal sheet is connected to the flexible display screen, and the other side is welded and fixed to the carrier, the metal The sheet is provided with a slot, and the slot is used to release the deformation of the metal sheet caused by heat at the welding position.

The beneficial effects of the above technical solution are as follows: the slotting releases the deformation of the metal sheet caused by heating, avoids the large deformation of the metal sheet due to local heating, and improves the welding effect.

BRIEF DESCRIPTION

In order to more clearly explain the technical solutions in the embodiments of the present application, the following will briefly introduce the drawings required in the embodiments. Obviously, the drawings in the following description are only some embodiments of the present application. Those of ordinary skill in the art can obtain other drawings based on these drawings without creative work.

FIG. 1 is a flowchart of a method for fixing a metal sheet according to an embodiment of the present invention.

Fig. 2 is a schematic diagram of metal sheet fixing.

Figure 3 is a schematic diagram of the structure of the metal sheet.

Figure 4 is a schematic diagram of the welding method.

5 is a schematic structural diagram of an embodiment of a metal sheet.

6 is a schematic structural diagram of another embodiment of a metal sheet.

FIG. 7 is a schematic diagram in the direction A of FIG. 3.

FIG. 8 is a schematic diagram in the direction B of FIG. 3.

9 is a side view of the flexible display device when it is in a deployed state.

FIG. 10 is a side view when the flexible display device is in a folded state.

detailed description

The technical solutions in the embodiments of the present application will be described clearly and completely in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are only a part of the embodiments of the present application, but not all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by a person of ordinary skill in the art without making creative efforts fall within the protection scope of the present application.

Please refer to FIGS. 1 and 2. FIG. 1 is a flowchart of a method for fixing a metal sheet 10 according to an embodiment of the present invention. FIG. 2 is a schematic diagram of fixing the metal sheet 10. In this embodiment, the method of fixing the metal sheet 10 is used to weld the metal sheet 10 to the object 20. Specifically, the metal sheet 10 is an iron sheet, an aluminum sheet, a steel sheet, etc. The thickness of the metal sheet 10 may be on the order of micrometers. In one embodiment, the metal sheet 10 has good toughness, and the metal sheet 10 can be bent. Because the thickness of the metal sheet 10 is small, the metal sheet 10 can have a small bending radius. Further, the metal sheet 10 can also be wound . In this embodiment, the object 20 is a structure welded to the metal sheet 10, and the specific structure of the object 20 is not limited in the embodiment of the present invention.

In this embodiment, the fixing method of the metal sheet 10 includes the following steps:

S101. Place the metal sheet 10 on the object 20, and the metal sheet 10 is provided with a slot 30 near the position 100 to be welded.

In this embodiment, the metal sheet 10 is disposed on the object 20, including but not limited to, placing the metal sheet 10 on the object 20, or pasting the metal sheet 10 on the object 20, or magnetically attracting the metal sheet 10 to a magnetic member On the object 20, or the metal sheet 10 is fixed on the object 20 by a mechanical structure such as a snap. Specifically, the metal sheet 10 is attached to the object 20, the metal sheet 10 is magnetically attracted to the object 20 with a magnetic member, and the metal sheet 10 is fixed to the object 20 by a mechanical structure such as a snap. The object 20 has a pre-fixing function. In other words, before welding, the metal sheet 10 and the object 20 are pre-fixed, so that the relative position of the metal sheet 10 and the object 20 is determined, and in the subsequent welding process, the metal sheet The relative position of 10 and the object 20 will not change, so as to avoid inaccurate welding position and poor welding effect.

Please refer to FIG. 3, which is a schematic structural diagram of the metal sheet 10. The metal sheet 10 includes a position 100 to be welded. The position 100 to be welded is an area on the surface of the metal sheet 10 for contacting and welding the object 20. In other words, the welding spot 40 is located in the position 100 to be welded, and the object 20 is fixed at the position 100 to be welded after welding . In fact, after the subsequent welding operation is completed, a welding spot 40 is formed on the position to be welded 100, and the position to be welded 100 forms a welding position. In one embodiment, the position to be welded 100 is located at the edge of the surface of the metal sheet 10, so that other positions on the surface of the metal sheet 10 can be used to set up or connect other structures. In other embodiments, the position to be welded 100 is located at the metal The middle position of the surface of the sheet 10, so that the surface of the metal sheet 10 and the object 20 have a larger contact area, that is, to provide a position 100 to be welded with a larger area.

In this embodiment, the slot 30 has a long shape. Of course, in other embodiments, the slot 30 may have other shapes.

S102. Weld the metal sheet 10 at the position to be welded 100, and weld the metal sheet 10 to the object 20.

In this embodiment, heating the to-be-welded position 100 of the metal sheet 10 partially melts the metal sheet 10 or the object 20, thereby fixing the metal sheet 10 and the object 20 together.

Please refer to FIG. 4. In one embodiment, the method of welding the metal sheet 10 is laser welding. Specifically, the laser is used to irradiate the position 100 of the metal sheet 10 to be welded. The energy of the laser is concentrated, the heating power is high, and the operation is easy. The metal sheet 10 or the object 20 can be accurately heated. The metal sheet 10 or the object 20 is quickly heated and partially melted. Thereby, the metal sheet 10 and the object 20 are welded. In this embodiment, a gas laser, a solid-state laser, or a semiconductor laser can be used to provide laser light.

In this embodiment, the slot 30 is used to release the deformation of the metal sheet 10 at the position to be welded 100 due to heat. Specifically, the metal sheet 10 will expand and deform after being heated at the welding position 100. The deformation due to expansion is transferred from the position of the welding point 40 to the surrounding of the welding point 40. When the deformation is transmitted to the vicinity of the slot 30, the slot 30 A certain space is provided to release the deformation, that is, the slot 30 can accommodate the deformation, and within a certain threshold of the deformation, the deformation will not cross the slot 30, so that the deformation will not continue to extend.

The slot 30 releases the deformation of the metal sheet 10 caused by heating, avoids the large deformation of the metal sheet 10 due to local heating, and improves the welding effect.

Please continue to refer to FIG. 3. In this embodiment, the position to be welded 100 includes a plurality of welding points 40, and the slot 30 is provided between adjacent welding points 40. Specifically, one slot 30 is provided between every two welding spots 40, and it can also be understood that one weld spot 40 is provided between every two slots 30. In one embodiment, the position 100 to be welded is intermittently irradiated by the laser, and each irradiation is separated by an end distance, thereby forming a plurality of spaced welding spots 40.

In the process of welding the metal sheet 10 to the object 20, the heat generated by welding one of the welding points 40 is blocked by the slot 30, thereby preventing the heat from directly passing through the welding point 40 and the adjacent welding The linear distance between the points 40 is conducted to the adjacent solder joint 40.

As shown in FIG. 5, taking the first welding spot 42 and the second welding spot 44 as an example, the first welding spot 42 and the second welding spot 44 have a slot 30 between them. When welding the first welding spot 42, the first welding spot The heat generated at the position of the spot 42 is partially transferred to the direction of the second welding spot 44, the slot 30 is located between the first welding spot 42 and the second welding spot 44, and the metal sheet 10 is placed between the first welding spot 42 and the second welding spot 44 Is cut off, that is, the slot 30 cuts off the linear propagation path of the first solder joint 42 and the second solder joint 44. The heat of the first solder joint 42 needs to bypass the slot 30 to be transferred to the second solder joint 44. Passing the slot 30 increases the heat transfer path, the heat is lost more during the propagation process, so that the second solder joint 44 receives less heat from the first solder joint 42 and less deformation will occur . Correspondingly, when welding the second welding point 44, the heat generated at the position of the second welding point 44 is partially transmitted to the direction of the first welding point 42, and the slot 30 is located between the first welding point 42 and the second welding point 44 to remove the metal The sheet 10 is interrupted between the first solder joint 42 and the second solder joint 44, that is, the slot 30 interrupts the linear propagation path of the first solder joint 42 and the second solder joint 44, and the heat of the second solder joint 44 needs to be bypassed Only the slot 30 can be transferred to the first welding spot 42, and bypassing the slot 30 increases the heat transfer path, and the heat is lost more during the propagation process, so that the second welding spot received by the first welding spot 42 Point 44 has less heat and less deformation will occur.

In one embodiment, the adjacent solder joints 40 are symmetrically distributed on both sides of the slot 30. In other words, the distance between the solder joints 40 on both sides of the slot 30 and the slot 30 is the same. As shown in FIG. 5, the distance between the first solder joint 42 and the second solder joint 44 to the slot 30 is the same. When welding the first solder joint 42, the heat transferred from the first solder joint 42 to the second solder joint 44 is the same as the second The heat transferred from the welding point 44 to the first welding point 42 is the same, the deformation of the first welding point 42 and the second welding point 44 is the same, and the deformation of the metal sheet 10 is uniform.

Please refer to FIG. 3, in this embodiment, the adjacent solder joints 40 have the same pitch. Specifically, each welding spot 40 corresponds to the area irradiated by the laser, the movement distance of the laser action area is the same every time, and the pitch of the corresponding welding spot 40 is the same. The solder joints 40 with the same pitch make the influence between the adjacent solder joints 40 the same, the metal sheet 10 is heated uniformly, and the deformation is uniform, and there is no concentration of deformation due to heat concentration. Further, the size of each solder joint 40 is the same, in other words, the size of the laser action area is the same, the influence between adjacent solder joints 40 is the same, the metal sheet 10 is heated uniformly, and the deformation is uniform, and there is no concentration of deformation due to heat concentration Case.

Please continue to refer to FIG. 3. In this embodiment, the number of the slots 30 is multiple and are all arranged in parallel with each other. Specifically, there is a slot 30 between each two solder joints 40, and the number of the solder joints 40 corresponds to the number of the solder joints 40. The slots 30 are parallel to each other. The slot 30 has the same effect on each solder joint 40. Specifically, the shape and arrangement of each slot 30 are the same. Each slot 30 blocks the heat transfer of the solder joint 40 and releases the metal sheet. The effect of the deformation occurring at 10 is the same, and the deformation at each solder joint 40 position of the metal sheet 10 is uniform.

In one embodiment, the spacing between adjacent slots 30 is the same. Specifically, the slots 30 with the same pitch make the influence between the adjacent solder joints 40 the same, the metal sheet 10 is heated uniformly, and the deformation is uniform, and there will be no concentration of deformation due to heat concentration. Further, the size of each slot 30 is the same, in other words, each slot 30 blocks the heat transfer of the solder joint 40, and the deformation of the metal sheet 10 is the same, and the influence between the adjacent solder joints 40 is the same, the metal sheet 10 The heating is uniform and the deformation is uniform, and there will be no concentrated heating and deformation.

Referring to FIG. 6, in one embodiment, the length of the slot 30 near the center of the position to be welded 100 is greater than the length of the slot 30 away from the center of the position to be welded 100. Specifically, the closer to the center of the position to be welded 100, the deformation of the metal sheet 10 due to heat is easy to accumulate, so the closer to the center of the position to be welded 100, the greater the deformation of the metal sheet 10 is caused by heating. The greater the length of the slot 30, the better the effect of the slot 30 in blocking heat transfer, and the better the effect of releasing the deformation. For example, when welding one solder spot 40, the heat generated at the position of the solder spot 40 is partially transferred to the direction of the other solder spot 40, the slot 30 is located between the two solder spots 40, and the metal sheet 10 is placed between the two solder spots 40 Truncated, that is, the slot 30 cuts off the linear propagation path of the two solder joints 40. The heat of the solder joint 40 needs to bypass the slot 30 to be transferred to the other solder joint 40, and bypassing the slot 30 increases the heat transfer The longer the length of the slot 30, the longer the heat transfer path, and the more heat is lost in the propagation process, so that the other solder joint 40 receives less heat and less deformation will occur. At the same time, the greater the length of the slot 30 and the larger the size of the slot 30, the slot 30 can accommodate more deformation, thereby releasing more deformation.

Please refer to FIG. 7. FIG. 7 is a schematic diagram in the direction A of FIG. 3. In one embodiment, the slot 30 penetrates the metal sheet 10 along the thickness direction of the metal sheet 10. Specifically, the metal sheet 10 includes a first surface 10a and a second surface 10b disposed opposite to each other, and the slot 30 penetrates the first surface 10a and the second surface 10b, that is, the slot 30 is perpendicular to the first surface 10a and the second surface. The direction of the surface 10b penetrates through the metal sheet 10. The size of the slot 30 is large, and the part of the metal sheet 10 on both sides of the slot 30 is completely disconnected, that is, the connection path of the welding spot 40 on both sides of the slot 30 is completely cut off, and the slot 30 releases the deformation and blocks the effect of heat transfer. better.

Please refer to FIG. 8. FIG. 8 is a schematic diagram in the direction B of FIG. 3. In one embodiment, the slot 30 penetrates the side surface 10 c of the metal sheet 10 along the surface of the metal sheet 10. Specifically, the metal sheet 10 further includes a side surface 10c connected between the first surface 10a and the second surface 10b. The slot 30 penetrates the side surface 10c of the metal sheet 10, that is, the slot 30 is located at the edge of the metal sheet 10. When welding the area to be welded, the deformation of the metal sheet 10 caused by the welding spot 40 can be transferred to the edge of the side of the metal sheet 10 where the side 10c is located, and the slot 30 penetrating the side 10c is more conducive to releasing the deformation.

Please refer to FIG. 4. In this embodiment, during the welding of the metal sheet 10 at the position to be welded 100, the metal sheet 10 is irradiated with laser light. The power of laser irradiation is easy to control, and the duration of laser irradiation is easy to control, so that the heat absorbed by the metal sheet 10 during welding is easy to control.

In this embodiment, the energy of each laser irradiation is the same, that is, the energy absorbed by each solder joint 40 is the same. Specifically, during the process of irradiating the position to be welded 100 with a laser, the output power of the laser is the same every time. In the process of irradiating the position to be welded 100 with laser, the duration of the laser output is the same every time. The energy of laser irradiation is equal to the product of the power of the laser output and the duration of the output. The laser control device is used to control the laser to output the same power and the same time every time. The control method is simple. The deformation of the metal sheet 10 after welding is uniform, to avoid the occurrence of deformation accumulation and large deformation at a certain position.

In one embodiment, during the process of setting the metal sheet 10 on the object 20, glue is applied to the object 20 to pre-fix the metal sheet 10 and the object 20. In the process of welding the metal sheet 10, since the metal sheet 10 will be deformed by heat, the metal sheet 10 may undergo a certain displacement relative to the object 20 during heat deformation, resulting in an inaccurate position of the next laser irradiation and an inaccurate position of the welding spot 40. The welding effect is not good. The glue has a certain viscosity, and the glue is used to paste the metal sheet 10 and the object 20 so that the object 20 and the metal sheet 10 have a certain connection strength. During the welding process, the glue fixes the relative position of the metal sheet 10 and the object 20. Even if there is a certain tendency of relative movement between the metal sheet 10 and the object 20 during the welding process, the glue can fix the metal sheet 10 and the object 20 Therefore, the relative movement of the metal sheet 10 and the object 20 will not occur during the welding process, the position of the laser irradiation is accurate every time, the position of the welding spot 40 is accurate, and the welding effect is good.

In one embodiment, before soldering the metal sheet 10 at the position to be soldered 100, the solder is clamped between the metal sheet 10 and the object 20. In this embodiment, the metal sheet 10 and the object 20 are welded by melting the solder. The solder is made of a material that is easy to melt and has a strong viscosity after melting. The solder plays a connecting role, so that the metal sheet 10 and the object 20 are fixedly connected. In other embodiments, the metal sheet 10 and the object 20 may be fixedly connected by melting and solidifying the metal sheet 10 or the object 20 without solder.

In this embodiment, before the solder is sandwiched between the metal sheet 10 and the object 20, the surface of the metal sheet 10 is roughened. Roughening the surface of the metal sheet 10 enhances the connection effect of the solder and the metal sheet 10, thereby enhancing the fixation firmness of the object 20 and the metal sheet 10.

Referring to FIGS. 9 and 10, an embodiment of the present invention further provides a flexible display device 700. The flexible display device 700 includes a flexible display screen 90, a carrier 80, and a metal sheet 10, and one side of the metal sheet 10 is connected to the The flexible display screen 90 is welded and fixed to the carrier 80 on the other side, and the metal sheet 10 is provided with a slot 30, the slot 30 is used to release the deformation of the metal sheet 10 heated at the welding position . In this embodiment, the metal sheet 10 and the carrier 80 are welded and fixed by the method for fixing the metal sheet 10 provided in the embodiment of the present invention. Further, the thickness of the metal sheet 10 is relatively thin, for example, 0.07 mm, and the deformed metal sheet 10 after welding is small, and the deformation is uniform. The metal sheet 10 is flat. After the flat metal sheet 10 is attached to the flexible display screen 700, the flexible display The surface of the screen 90 is flat, the effect of the flexible display 90 and the metal sheet 10 is good, and the flexible display 90 can provide a better display effect.

The carrier 80 includes a first carrier 82, a second carrier 84, and a bendable connector 86 connected between the first carrier 82 and the second carrier 84, the first carrier 82 and the second carrier 84 Rotatingly connected via the bendable connecting member 86, the flexible display screen 90 includes a first portion 92, a second portion 94, and a bendable portion 96 connected between the first portion 92 and the second portion 94.

In this embodiment, when the flexible display device 700 is in the folded state, the flexible display screen 90 is located outside the carrier 80. Specifically, when the first carrier 82 and the second carrier 84 are relatively folded, the first portion 92 is located on the side of the first carrier 82 facing away from the second carrier 84, and the second portion 94 is located on the side of the second carrier 84 facing away from the second On one side of a carrier 82, no matter when the flexible display device 700 is in the folded state or the unfolded state, the user can observe the image displayed by the flexible display screen 90.

In an embodiment, the first carrier 82 and the second carrier 84 may be a housing, and the inside of the housing may be used to place electronic devices such as circuit boards and batteries. The first carrier 82 and the second carrier 84 may also be It is a rigid bracket or the like used to support the flexible display 90. In this embodiment, the flexible display screen 90 may be an organic light-emitting diode display (Organic Light-Emitting Diode, OLED). Further, the flexible display screen 90 may be a display screen with only a display function, or a display screen with integrated touch function. In this embodiment, the flexible display screen 90 is a complete display screen, and the first portion 92, the second portion 94, and the bendable portion 96 are different parts of the flexible display screen 90 divided according to positions.

In this embodiment, the first carrier 82 corresponds to the position of the first portion 92, the second carrier 84 corresponds to the position of the second portion 94, and the bendable connecting member 86 corresponds to the position of the bendable portion 96. The first carrier 82 is fixedly connected to the first part 92, the second carrier 84 is fixedly connected to the second part 94, and the bendable connector 86 and the bendable part 96 may or may not be connected. In one embodiment, on a plane perpendicular to the thickness of the first carrier 82, the size of the first portion 92 is the same as the size of the first carrier 82, or the size of the first portion 92 is smaller than that of the first carrier 82 Dimensions, in other words, the orthographic projection of the first portion 92 on the surface of the first carrier 82 is completely within the first carrier 82, so that the first carrier 82 can support the first portion 92 and expand the first portion 92; On a plane perpendicular to the thickness of the second carrier 84, the size of the second portion 94 is the same as the size of the second carrier 84, or the size of the second portion 94 is smaller than the size of the second carrier 84, in other words, the second The orthographic projection of the portion 94 on the surface of the second carrier 84 is completely within the second carrier 84 so that the second carrier 84 can support the second portion 94 and expand the second portion 94. In this embodiment, the bendable connecting member 86 may be a hinge structure, so that the first carrier 82 can rotate relative to the second carrier 84 through the bendable connecting member 86.

In one embodiment, the first carrier 82 and the second carrier 84 have the same shape and size, and the first carrier 82 and the second carrier 84 are symmetrically connected to both ends of the bendable connector 86. Correspondingly, the first portion 92 and the second portion 94 have the same shape and size, and the first portion 92 and the second portion 94 are symmetrically connected to both ends of the bendable portion 96.

It should be understood that in the description of the embodiments of the present application, the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front" ", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise" and other instructions The azimuth or position relationship is based on the azimuth or position relationship shown in the drawings, just to facilitate the description of the embodiments of the present application and simplify the description, and does not indicate or imply that the device or element referred to must have a specific orientation, specific The azimuth configuration and operation cannot be understood as a limitation to the embodiments of the present application. In addition, the terms "first" and "second" are used for description purposes only, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of indicated technical features. Thus, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the embodiments of the present application, the meaning of "plurality" is two or more, unless otherwise specifically limited.

In the description of the embodiments of the present application, it should be noted that the terms “installation”, “connected”, and “connected” should be understood in a broad sense, for example, it can be a fixed connection or It is a detachable connection, or an integral connection; it can be a mechanical connection, an electrical connection, or can communicate with each other; it can be directly connected, or it can be indirectly connected through an intermediary, it can be a connection between two components or two components Interaction. Those of ordinary skill in the art can understand the specific meanings of the above terms in the embodiments of the present application according to specific situations.

In the embodiments of the present application, unless clearly specified and defined otherwise, the first feature "above" or "below" the second feature may include the first and second features in direct contact, or may include the first and The second feature is not in direct contact but through another feature between them. Moreover, the first feature is “above”, “above” and “above” the second feature includes that the first feature is directly above and obliquely above the second feature, or simply means that the first feature is higher in level than the second feature. The first feature is "below", "below" and "below" the second feature includes that the first feature is directly above and obliquely above the second feature, or simply means that the first feature is less horizontal than the second feature.

The above disclosure provides many different embodiments or examples for implementing different structures of the embodiments of the present application. In order to simplify the disclosure of the embodiments of the present application, the components and settings of specific examples are described below. Of course, they are only examples, and the purpose is not to limit this application. In addition, the embodiments of the present application may repeat reference numerals and/or reference letters in different examples. Such repetition is for the purpose of simplification and clarity, and does not itself indicate the relationship between the various embodiments and/or settings discussed. . In addition, the embodiments of the present application provide examples of various specific processes and materials, but those of ordinary skill in the art may be aware of the application of other processes and/or the use of other materials.

In the description of this specification, reference to descriptions of the terms "one embodiment", "some embodiments", "schematic embodiments", "examples", "specific examples" or "some examples", etc. is meant to be combined with the implementation The specific features, structures, materials, or characteristics described in the modes or examples are included in at least one embodiment or example of the present application. In this specification, the schematic expression of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

The above is only the specific implementation of this application, but the scope of protection of this application is not limited to this, any person skilled in the art can easily think of various equivalents within the technical scope disclosed in this application Modifications or replacements, these modifications or replacements should be covered within the scope of protection of this application. Therefore, the protection scope of the present application shall be subject to the protection scope of the claims.

Claims

A method for fixing a metal sheet, characterized in that it includes:

The metal sheet is provided on the object, and the metal sheet is provided with a slot near the position to be welded;

Welding the metal sheet at the position to be welded, and welding the metal sheet to the object.
The method for fixing a metal sheet according to claim 1, wherein the slot is used to release the deformation of the metal sheet caused by heating at the position to be welded.
The method for fixing a metal sheet according to claim 2, wherein the position to be welded includes a plurality of welding points, and the slot is provided between adjacent welding points.
The method for fixing a metal sheet according to claim 3, characterized in that, in the process of welding the metal sheet to the object, the heat generated by welding one of the welding points is blocked by the slot, thereby It is avoided that the heat is directly transmitted to the adjacent welding spot through the linear distance between the welding spot and the adjacent welding spot.
The method for fixing a metal sheet according to claim 4, wherein the adjacent solder joints are symmetrically distributed on both sides of the slot.
The method for fixing a metal sheet according to claim 3, characterized in that the pitches of adjacent welding points are the same.
The method for fixing a metal sheet according to claim 1, wherein the number of the grooves is plural and all are arranged parallel to each other.
The method for fixing a metal sheet according to claim 7, wherein the adjacent grooves have the same pitch.
The method for fixing a metal sheet according to claim 8, wherein the length of the slot near the center of the position to be welded is greater than the length of the slot away from the center of the position to be welded.
The method for fixing a metal sheet according to claim 1, wherein the slot penetrates the metal sheet in a thickness direction of the metal sheet.
The method for fixing a metal sheet according to claim 1, wherein the slot penetrates the side surface of the metal sheet along the surface of the metal sheet.
The method of fixing a metal sheet according to claim 1, wherein the metal sheet is irradiated with laser light during welding of the metal sheet at the position to be welded.
The method for fixing a metal sheet according to claim 12, wherein during laser irradiation of the position to be welded, the power of the laser output is the same every time.
The method for fixing a metal sheet according to claim 13, wherein during the process of irradiating the position to be welded with a laser, the duration of the laser output is the same every time.
The method for fixing a metal sheet according to claim 1, wherein in the process of setting the metal sheet on the object, glue is applied on the object to pre-fix the metal sheet and the object.
The method for fixing a metal sheet according to claim 1, wherein before soldering the metal sheet at the position to be soldered, a solder is clamped between the metal sheet and the object.
The method of fixing a metal sheet according to claim 16, wherein the surface of the metal sheet is roughened before solder is sandwiched between the metal sheet and the object.
A flexible display device is characterized by comprising a flexible display screen, a carrier and a metal sheet, one side of the metal sheet is connected to the flexible display screen, and the other side is welded and fixed to the carrier body and the metal sheet A slot is provided for releasing the deformation of the metal sheet that is heated at the welding position.
The flexible display device according to claim 18, wherein the welding position includes a plurality of welding points, and the slot is provided between adjacent welding points.
The flexible display device according to claim 18, wherein the number of the grooves is a plurality and all are arranged parallel to each other.
The flexible display device according to claim 18, wherein the length of the slot near the center of the welding position is greater than the length of the slot away from the center of the position to be welded.
The flexible display device according to claim 18, wherein the slot penetrates the metal sheet in a thickness direction of the metal sheet.
The flexible display device according to claim 18, wherein the slot penetrates the side surface of the metal sheet along the surface of the metal sheet.