Locking assembly, display module and display device

Abstract

The utility model discloses a locking assembly, a display module and a display device, and relates to the technical field of display. The locking assembly is applied to the display module. The display module comprises a shell assembly, a display panel and a flexible circuit board. After the flexible circuit board is fixedly connected with the second panel part of the display panel, and under the condition that the flexible circuit board and the second panel part are both located outside the containing cavity, the locking assembly can be fixedly connected with the shell assembly of the display module. Due to the existence of the locking assembly, the flexible circuit board and the shell assembly can be relatively fixed, the shaking amplitude of the flexible circuit board is reduced, the acting force generated by shaking of the flexible circuit board on the bent part of the display panel is reduced, cracks are prevented from being generated in the bent part, and the yield of the display module is improved.

Description

Technical Field

[0001] The present application relates to the field of display technology, and in particular to a locking component, a display module and a display device. Background Art

[0002] The display module generally includes a housing and a display panel. The housing is usually a cavity-type housing, which may have a receiving cavity, and the display panel is disposed in the receiving cavity.

[0003] In some embodiments, the display module further comprises a flexible circuit board that is bound and connected to the display panel. During the preparation of the display module, the flexible circuit board is first fixedly connected to the display panel and then bound and connected to the display panel.

[0004] However, before the flexible circuit board and the display panel are bound and connected, the flexible circuit board is located outside the accommodating cavity, and the shaking of the flexible circuit board can easily cause cracks in the display panel, thereby resulting in a low yield of the display module. Summary of the invention

[0005] The present application provides a locking component, a display module and a display device, which can solve the problem of low yield of the display module. The technical solution is as follows:

[0006] On the one hand, a locking assembly is provided, which is applied to the display module, wherein the display module includes a housing assembly, a display panel and a flexible circuit board; the housing assembly has a housing cavity, the display panel includes a first panel portion, a bending portion and a second panel portion connected in sequence, the first panel portion and the bending portion are located in the housing cavity, and the bending portion is close to the edge of the housing cavity relative to the first panel portion, and the flexible circuit board is connected to the second panel portion; the locking assembly includes:

[0007] a first locking portion, the first locking portion being used for fixedly connecting with the second panel portion or the flexible circuit board;

[0008] a second locking portion, the second locking portion being rotatable relative to the first locking portion;

[0009] In which, when the second panel portion is located outside the accommodating cavity, the second locking portion is also used to be fixedly connected to the shell assembly; when the second panel portion is arranged on the side of the first panel portion away from the shell assembly through the bending portion and is located in the accommodating cavity, the second locking portion is also used to rotate relative to the first locking portion so that the second locking portion is located on the side of the second panel portion away from the first panel portion.

[0010] Optionally, the housing assembly includes a first housing portion and a second housing portion, the second housing portion is an annular structure and is connected to an edge of the first housing portion, and the first housing portion and the second housing portion constitute the accommodating cavity;

[0011] When the second panel portion is located outside the accommodating cavity, the second locking portion is located on a side of the second shell portion away from the first shell portion, and the orthographic projection of the second locking portion on the shell assembly overlaps with the second shell portion, and the surface of the second locking portion close to the second shell portion is configured to be bonded to the side of the second shell portion away from the first shell portion through a first bonding adhesive, and the first bonding adhesive is configured to be located between the second locking portion and the second shell portion.

[0012] Optionally, the housing assembly includes a first housing portion and a second housing portion, the second housing portion is an annular structure and is connected to an edge of the first housing portion, and the first housing portion and the second housing portion constitute the accommodating cavity;

[0013] When the second panel is partially located outside the accommodating cavity, the second locking portion is located on a side of the second housing portion away from the first housing portion, and an end surface of the second locking portion away from the first locking portion and a surface of the second housing portion away from the accommodating cavity are configured to be bonded to the first bonding adhesive;

[0014] The first bonding adhesive includes a first adhesive portion and a second adhesive portion of an integral structure, the first adhesive portion is configured to be located on an end surface of the second locking portion away from the first locking portion, and the second adhesive portion is configured to be located on a surface of the second shell portion away from the accommodating cavity.

[0015] Optionally, the housing assembly includes a first housing portion and a second housing portion, the second housing portion is an annular structure and is connected to an edge of the first housing portion, and the first housing portion and the second housing portion constitute the accommodating cavity;

[0016] The locking assembly further comprises: a third locking portion, the third locking portion being fixedly connected to a surface of the second locking portion away from the first locking portion;

[0017] When the second panel portion is located outside the accommodating cavity, the second locking portion is located on a side of the second shell portion away from the first shell portion, the third locking portion is located on a side of the second shell portion away from the accommodating cavity, and the third locking portion and the second shell portion are configured to be fixedly connected via a first bonding adhesive, and the first bonding adhesive is configured to be located between the third locking portion and the second shell portion.

[0018] Optionally, the locking assembly further includes: a supporting portion, the supporting portion including an annular first supporting structure, and a second supporting structure fixedly connected to the first supporting structure;

[0019] When the second panel portion is located outside the accommodating cavity, the first supporting structure is configured to be arranged on a side of the shell assembly away from the display panel, the first supporting structure is configured to surround the shell assembly, and is fixedly connected to the edge of the shell assembly, and is used to support the shell assembly, the display panel and the flexible circuit board; the second supporting structure has a fixing groove, the first locking portion and the second locking portion are both located in the fixing groove, and the second locking portion is configured to be fixedly connected to the second supporting structure, and the second supporting structure is configured so that its orthographic projection on the flexible circuit board is located within the flexible circuit board.

[0020] Optionally, the display panel further comprises a driving chip, and the driving chip is partially fixedly connected to the second panel;

[0021] The second locking portion includes a second main body portion and an annular protrusion structure located on one side of the second main body portion, and the second main body portion and the annular protrusion structure constitute a receiving groove;

[0022] When the second panel portion is arranged on a side of the first panel portion away from the shell assembly through the bending portion and is located in the accommodating cavity, the accommodating groove is used to accommodate the driving chip, the annular protrusion structure is arranged around the driving chip, and the second main body portion is located on a side of the driving chip away from the second panel portion.

[0023] Optionally, the second locking portion further includes a protective layer, the protective layer is located in the area surrounded by the annular protruding structure, and the protective layer is connected to the second main body portion;

[0024] The material of the protective layer includes at least one of copper foil, aluminum foil, absorbing material, semi-conductive material, and foam.

[0025] Optionally, the second locking portion further includes a second bonding adhesive, and the second bonding adhesive is located in the area surrounded by the annular convex structure;

[0026] One side of the second bonding adhesive is bonded to the surface of the second main body portion, and the other side of the second bonding adhesive is used to bond to the surface of the driving chip away from the second panel portion.

[0027] Optionally, the annular protrusion structure includes a first protrusion portion and a second protrusion portion, and the first protrusion portion is closer to the flexible circuit board than the second protrusion portion;

[0028] The wall thickness of the first protruding portion is greater than the wall thickness of the second protruding portion.

[0029] Optionally, the first locking portion is a Mylar sheet, which is used to be bonded to the second panel portion, and the Mylar sheet can be bent so that the second locking portion can rotate relative to the first locking portion.

[0030] Optionally, at least a portion of the first locking portion is located on a side of the second locking portion away from the display panel, and the first locking portion and the side of the second locking portion away from the display panel are bonded; or,

[0031] The first locking portion is located between the second locking portion and the display panel, and the first locking portion and the second locking portion are bonded to each other at a side close to the display panel.

[0032] Optionally, one end of the second locking portion close to the first locking portion includes at least one connecting structure, each of the connecting structures has a through hole; the locking assembly further includes a rotating shaft;

[0033] The rotating shaft is located in the through hole of the connecting structure, and the rotating shaft can rotate with the axis of the through hole as the rotation axis, and both ends of the rotating shaft are fixedly connected to the first locking part.

[0034] Optionally, the first locking portion includes a first main body portion and two fixing portions, the two fixing portions are connected to the sides of the first main body portion, and there is a gap between the two fixing portions;

[0035] The connecting structure and the rotating shaft are located in the interval, and both of the two fixed parts have fixing holes. One end of the rotating shaft is connected to the fixing hole of one of the fixed parts, and the other end of the rotating shaft passes through the through hole of the connecting structure and is connected to the fixing hole of the other fixed part.

[0036] Optionally, the display panel further comprises a driving chip, and the driving chip is partially fixedly connected to the second panel;

[0037] The first locking portion is connected to the second panel portion, and a first connection between the first locking portion and the second panel portion is closer to the first panel portion than a second connection between the flexible circuit board and the second panel portion, and a third connection between the driving chip and the second panel portion is located between the first connection and the second connection; or

[0038] The first locking portion is connected to the flexible circuit board, and a fourth connection between the first locking portion and the flexible circuit board is away from the first panel portion relative to a second connection between the flexible circuit board and the second panel portion, and a third connection between the driving chip and the second panel portion is located on a side of the second connection away from the fourth connection.

[0039] In another aspect, a display module is provided, the display module comprising:

[0040] A shell assembly, the shell assembly comprising a first shell portion and a second shell portion, the second shell portion is an annular structure and is connected to the edge of the first shell portion, the first shell portion and the second shell portion constitute the accommodating cavity;

[0041] a display panel, the display panel comprising a first panel portion, a bent portion and a second panel portion, the first panel portion and the bent portion being located in the accommodating cavity, the bent portion being closer to an edge of the accommodating cavity relative to the first panel portion, and the second panel portion being connected to the first panel portion via the bent portion;

[0042] A flexible circuit board, wherein the flexible circuit board is partially connected to the second panel;

[0043] And, a first locking part and a second locking part of a locking assembly, the locking assembly is the locking assembly described in the above aspect, the first locking part is connected to the second panel part or the flexible circuit board, the second locking part can rotate relative to the first locking part, and the second locking part is located on the side of the second panel part away from the first panel part.

[0044] Optionally, the display panel further includes a driving chip, and the driving chip is partially fixedly connected to the second panel;

[0045] The second locking portion includes a second main body portion and an annular protrusion structure located on one side of the second main body portion, and the second main body portion and the annular protrusion structure constitute a receiving groove;

[0046] The driving chip is located in the accommodating groove, and the annular protruding structure is arranged around the driving chip. The second main body portion is located at a side of the driving chip away from the second panel portion.

[0047] Optionally, the display module further includes a third locking portion in the locking assembly, and the third locking portion is fixedly connected to a surface of the second locking portion away from the first locking portion.

[0048] Optionally, the display module further comprises: a protective film, the protective film being located between the second panel portion and the first locking portion, or the protective film being located on a side of the second locking portion away from the first locking portion;

[0049] The orthographic projection of the protective film on the housing assembly covers the orthographic projection of the second locking portion on the housing assembly, and the orthographic projection of the protective film on the housing assembly overlaps with the orthographic projection of the target portion of the flexible circuit board on the housing assembly.

[0050] In another aspect, a method for preparing a display module is provided, the method comprising:

[0051] Obtain a shell assembly, the shell assembly comprising a first shell portion and a second shell portion, the second shell portion is an annular structure and is connected to an edge of the first shell portion, the first shell portion and the second shell portion constitute the accommodating cavity;

[0052] The display panel and the housing assembly are fixedly connected, the first panel portion of the display panel is located in the accommodating cavity, the bent portion of the display panel is bent at the edge of the accommodating cavity, and the second panel portion of the display panel is located outside the accommodating cavity;

[0053] connecting the first locking portion of the locking assembly and the second panel portion or the flexible circuit board;

[0054] The second locking portion of the locking assembly is fixedly connected to the housing assembly;

[0055] The flexible circuit board is fixedly connected to the second panel portion, and the flexible circuit board is also located outside the accommodating cavity;

[0056] The connection between the second locking portion and the shell assembly is released, and the second panel portion is bent to the side of the first panel portion away from the shell assembly through the bending portion, and the second panel portion is located in the accommodating cavity, the flexible circuit board is located on the side of the first panel portion away from the shell assembly, a part of the flexible circuit board is located in the accommodating cavity, and the second locking portion is rotated relative to the first locking portion and buckled on the side of the second panel portion away from the first panel portion.

[0057] In another aspect, a display device is provided, the display device comprising: a power supply component and the display module as described in the above aspect;

[0058] Wherein, the power supply component is connected to the display module, and the power supply component is used to supply power to the display module.

[0059] Optionally, the display device is a wearable display device.

[0060] The beneficial effects of the technical solution provided by this application include at least:

[0061] The present application provides a locking assembly, a display module and a display device, wherein the display module includes a housing assembly, a display panel and a flexible circuit board. After the flexible circuit board and the second panel portion of the display panel are fixedly connected, and the flexible circuit board and the second panel portion are both located outside the accommodating cavity, the locking assembly can be fixedly connected to the housing assembly of the display module. The presence of the locking assembly can make the flexible circuit board and the housing assembly relatively fixed, reduce the shaking amplitude of the flexible circuit board, and reduce the force exerted by the shaking of the flexible circuit board on the bending portion of the display panel, avoid cracks in the bending portion, and improve the yield of the display module. BRIEF DESCRIPTION OF THE DRAWINGS

[0062] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings required for use in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0063] Figure 1 is a partial structural schematic diagram of a display module provided in an embodiment of the present application;

[0064] Figure 2 is a structural schematic diagram of a locking assembly provided in an embodiment of the present application;

[0065] Figure 3 is a structural schematic diagram of a display module provided in an embodiment of the present application;

[0066] Figure 4 is a schematic diagram of the structure of another display module provided in an embodiment of the present application;

[0067] Figure 5 yes Figure 4 Schematic diagram of the local structure in area A;

[0068] Figure 6 is a structural schematic diagram of another display module provided in an embodiment of the present application;

[0069] Figure 7 yes Figure 6 Schematic diagram of the local structure in area B;

[0070] Figure 8 is a structural schematic diagram of another display module provided in an embodiment of the present application;

[0071] Fig. 9 is an exploded schematic diagram of a locking assembly provided in an embodiment of the present application;

[0072] Fig.10 is an exploded schematic diagram of a locking component and a display module provided in an embodiment of the present application;

[0073] Fig.11 It is a structural schematic diagram of a locking component and a display module provided in an embodiment of the present application;

[0074] Fig.12 is a structural schematic diagram of another locking assembly provided by an embodiment of the present application;

[0075] Fig.13 is a structural schematic diagram of another locking assembly provided in an embodiment of the present application;

[0076] Fig.14 is a structural schematic diagram of another locking assembly provided in an embodiment of the present application;

[0077] Fig.15 is a structural schematic diagram of another display module provided in an embodiment of the present application;

[0078] Fig.16 is a structural schematic diagram of another display module provided in an embodiment of the present application;

[0079] Fig.17 It is a structural schematic diagram of a locking assembly and a flexible circuit board provided in an embodiment of the present application;

[0080] Fig.18 is a structural schematic diagram of another display module provided in an embodiment of the present application;

[0081] Fig.19 is a structural schematic diagram of another display module provided in an embodiment of the present application;

[0082] Fig. 20 is a schematic diagram of a locking assembly and a protective film provided in an embodiment of the present application;

[0083] Fig.21 is a structural schematic diagram of another display module provided in an embodiment of the present application;

[0084] Fig. 22 It is a structural schematic diagram of another display module provided in an embodiment of the present application. DETAILED DESCRIPTION

[0085] In order to make the objectives, technical solutions and advantages of the present application clearer, the implementation methods of the present application will be further described in detail below with reference to the accompanying drawings.

[0086] In some embodiments, the display module includes a housing, a display panel, and a flexible circuit board. The housing has a receiving cavity. The display panel includes a first part and a second part. The flexible circuit board includes a driving circuit, and the flexible circuit board can be bound and connected to the second part, so that the driving circuit on the flexible circuit board can provide a driving signal for the display panel. During the preparation of the display module, the first part of the display panel is fixed in the receiving cavity of the housing, and the second part of the display panel is made to exceed the housing design and form a certain angle with the first part. Then, the flexible circuit board and the second part are fixedly connected, and after a series of related processes, the second part finally drives the flexible circuit board to bend to one side of the first part, thereby realizing the binding connection between the flexible circuit board and the display panel.

[0087] However, after the flexible circuit board and the second part of the display panel are fixedly connected and before the flexible circuit board and the second part of the display panel are bound and connected, the shaking of the flexible circuit board can easily cause cracks at the junction of the first part and the second part of the display panel, thereby resulting in a low yield of the display module.

[0088] The embodiment of the present application provides a locking assembly 104, which can be applied to a display module. For example, the locking assembly 104 can be applied to the preparation process of the display module, and the display module does not include the locking assembly 104. Alternatively, the locking assembly 104 can not only be applied to the preparation process of the display module, but the display module can also include at least part of the locking assembly 104.

[0089] Figure 1 1 is a partial structural diagram of a locking assembly 104 provided in an embodiment of the present application applied to a display module. Figure 1 The display module 100 includes: a housing component 101, a display panel 102 (panel) and a flexible printed circuit 103 (flexible printed circuit, FPC). The housing component 101 can be a cover glass (CG) component, and the housing component 101 has a housing cavity 101a. The display panel 102 includes a first panel portion 1021, a bending portion 1022 and a second panel portion 1023. The first panel portion 1021 and the bending portion 1022 are located in the housing cavity 101a, and the bending portion 1022 is close to the edge of the housing cavity 101a relative to the first panel portion 1021, and the second panel portion 1023 is connected to the first panel portion 1021 through the bending portion 1022. The flexible printed circuit 103 can be connected to the second panel portion 1023.

[0090] Optionally, the second panel portion 1023 and the first panel portion 1021 may have a certain angle through the bending portion 1022. For example, in the preparation process of the display module 100, after the display panel 102 and the housing assembly 101 are assembled (the assembly of the display panel 102 and the housing assembly 101 may be referred to as D-Lami assembly), the bending portion 1022 may be bent so that the angle between the second panel portion 1023 and the first panel portion 1021 is approximately 90 degrees; after the flexible circuit board 103 (FPC) and the display panel 102 (panel) are connected by bonding, that is, the second panel portion 1023 of the display panel 102 needs to drive the flexible circuit board 103 to bend to the back side of the first panel portion 1021, and the angle between the second panel portion 1023 and the first panel portion 1021 is approximately 180 degrees.

[0091] Figure 2 1 is a schematic diagram of the structure of a locking assembly 104 provided in an embodiment of the present application. Figure 2 The lock assembly 104 includes a first locking portion 1041 and a second locking portion 1042. Figure 1 and Figure 2 The first locking portion 1041 is used to be fixedly connected to the second panel portion 1023 or the flexible circuit board 103. Figure 1 Take the example of the fixed connection between the first locking portion 1041 and the second panel portion 1023. In addition, the second locking portion 1042 can rotate relative to the first locking portion 1041.

[0092] During the preparation of the display module 100, after the display panel 102 and the housing assembly 101 are assembled, the first panel portion 1021 of the display panel 102 is located in the housing cavity 101a of the housing assembly 101, the bent portion 1022 is closer to the edge of the housing cavity 101a than the first panel portion 1021, the second panel portion 1023 extends out of the housing cavity 101a from the edge of the housing cavity 101a, and the second panel portion 1023 can be located outside the housing cavity 101a. Afterwards, the flexible circuit board 103 and the second panel portion 1023 can be fixedly connected. In this case, the flexible circuit board 103 is also located outside the housing cavity 101a, and relative to the housing assembly 101, it is suspended on one side of the housing cavity 101a of the housing assembly 101. After some further processes (the prepared module part may need to be transported during the process), the second panel part 1023 can be bent to the side of the first panel part 1021 away from the housing assembly 101 through the bending part 1022, and the flexible circuit board 103 is located on the side of the second panel part 1023 away from the housing assembly 101. In this case, at least part of the flexible circuit board 103 is also located in the accommodating cavity 101a, so as to realize the binding connection between the flexible circuit board 103 and the second panel part 1023 of the display panel 102.

[0093] In some embodiments, after the flexible circuit board 103 and the display panel 102 are fixedly connected, and before the flexible circuit board 103 and the display panel 102 are bound and connected, the prepared module part needs to be transported. Since the flexible circuit board 103 has a certain weight, the flexible circuit board 103 will shake during the transportation process, which will cause the bending part 1022 of the display panel 102 to be subjected to excessive force, thereby causing cracks in the bending part 1022, affecting the yield of the display module 100.

[0094] In the embodiment of the present application, after the flexible circuit board 103 and the display panel 102 are fixedly connected, and before the flexible circuit board 103 and the display panel 102 are bound and connected (i.e., when the second panel portion 1023 is located outside the accommodating cavity 101a), the second locking portion 1042 is also used to be fixedly connected to the housing assembly 101. In this way, even if the flexible circuit board 103 shakes, the presence of the locking assembly 104 can indirectly fix the flexible circuit board 103 and the housing assembly 101, and play a certain supporting role for the flexible circuit board 103. Therefore, on the one hand, the shaking amplitude of the flexible circuit board 103 can be reduced, and on the other hand, the force exerted by the shaking on the bent portion 1022 of the display panel 102 can be reduced, thereby reducing the impact of the shaking on the bent portion 1022, avoiding cracks in the bent portion 1022, and improving the yield of the display module.

[0095] Furthermore, in order to realize the binding connection between the flexible circuit board 103 and the display panel 102, it is necessary to release the fixed connection between the second locking portion 1042 and the housing assembly 101 before the binding connection. That is, the second locking portion 1042 and the housing assembly 101 are in a free state.

[0096] It should be noted that if the display module 100 finally prepared does not include the locking assembly 104 , the fixed connection between the first locking portion 1041 and the second panel portion 1023 can be released. That is, the locking assembly 104 can be directly removed from the display module 100 .

[0097] If the display module 100 finally prepared is required to include at least part of the locking assembly 104, it is not necessary to release the fixed connection between the first locking portion 1041 and the second panel portion 1023. Figure 3 In the process that the second panel portion 1023 is gradually bent to the side of the first panel portion 1021 away from the housing assembly 101 through the bending portion 1022 (i.e., the process of binding and connecting the flexible circuit board 103 and the display panel 102), the second locking portion 1042 can rotate relative to the first locking portion 1041. In the case that the second panel portion 1023 is bent and arranged on the side of the first panel portion 1021 away from the housing assembly 101 through the bending portion 1022 and is located in the accommodating cavity 101a (i.e., the binding and connecting of the flexible circuit board 103 and the display panel 102 is completed), the second locking portion 1042 can be located on the side of the second panel portion 1023 away from the first panel portion 1021. That is, due to the relative rotation of the second locking portion 1042 and the first locking portion 1041, the second locking portion 1042 can be buckled on the side of the second panel portion 1023 away from the first panel portion 1021.

[0098] In the embodiment of the present application, the second locking portion 1042 is buckled on the side of the second panel portion 1023 away from the first panel portion 1021, and can protect the components at the relevant position on the second panel portion 1023. That is, the design of the locking component 104 can not only support the flexible circuit board 103 during the preparation process of the display module 100, but also protect the components on the display panel 102.

[0099] In summary, an embodiment of the present application provides a locking assembly, which is applied to a display module. The display module includes a shell assembly, a display panel, and a flexible circuit board. After the flexible circuit board and the second panel portion of the display panel are fixedly connected, and the flexible circuit board and the second panel portion are both located outside the accommodating cavity, the locking assembly can be fixedly connected to the shell assembly of the display module. The presence of the locking assembly can make the flexible circuit board and the shell assembly relatively fixed, reduce the shaking amplitude of the flexible circuit board, and reduce the force exerted by the shaking of the flexible circuit board on the bending portion of the display panel, avoid cracks in the bending portion, and improve the yield of the display module.

[0100] Figure 4 It is a structural schematic diagram of a display module provided in an embodiment of the present application. Figure 5 yes Figure 4 A partial schematic diagram of area A. Figure 4 and Figure 5 The housing assembly 101 includes a first housing portion 1011 and a second housing portion 1012. The second housing portion 1012 is an annular structure and is connected to the edge of the first housing portion 1011. The first housing portion 1011 and the second housing portion 1012 form a receiving cavity 101a. For example, the first housing portion 1011 and the second housing portion 1012 are an integral structure and form a cavity-type housing assembly 101.

[0101] refer to Figure 4 After the flexible circuit board 103 and the display panel 102 are fixedly connected, and before the flexible circuit board 103 and the display panel 102 are bound and connected (i.e., when the second panel portion 1023 is located outside the accommodating cavity 101a), the second locking portion 1042 is located on the side of the second housing portion 1012 away from the first housing portion 1011, and the orthographic projection of the second locking portion 1042 on the housing assembly 101 overlaps with the second housing portion 1012. Figure 5 As shown, in order to achieve a fixed connection between the locking assembly 104 and the housing assembly 101, a first bonding adhesive n1 may be provided between the second locking portion 1042 and the second housing portion 1012. The surface of the second locking portion 1042 close to the second housing portion 1012 is bonded to a side of the second housing portion 1012 away from the first housing portion 1011 through the first bonding adhesive n1. That is, the second locking portion 1042 and the second housing portion 1012 are respectively configured to be bonded to two different surfaces of the first bonding adhesive n1.

[0102] Optionally, the first bonding adhesive n1 (tape adhesive) can be a weak adhesive. Weak adhesive refers to temporary adhesive, which is easy to remove later. The viscosity of the first bonding adhesive n1 can be equivalent to the viscosity of an ordinary protective film, and its range can be 10gf / inch to 20gf / inch. Before the flexible circuit board 103 and the display panel 102 are bound and connected, the fixed connection between the second locking portion 1042 and the second shell portion 1012 can be released first, and the first bonding adhesive n1 on the surface of the second locking portion 1042 and the second shell portion 1012 can be torn off. Afterwards, during the binding connection between the flexible circuit board 103 and the display panel 102, the second locking portion 1042 rotates toward the side close to the first locking portion 1041, so that the second locking portion 1042 is buckled on the side of the second panel portion 1023 away from the first panel portion 1021.

[0103] refer to Figure 6 and Figure 7 , after the flexible circuit board 103 and the display panel 102 are fixedly connected, and before the flexible circuit board 103 and the display panel 102 are bound and connected (i.e., when the second panel portion 1023 is located outside the accommodating cavity 101a), the second locking portion 1042 is located on the side of the second housing portion 1012 away from the first housing portion 1011. In order to achieve the fixed connection between the locking assembly 104 and the housing assembly 101, the first bonding adhesive n1 can be provided on the end surface of the second locking portion 1042 away from the first locking portion 1041, and the surface of the second housing portion 1012 away from the accommodating cavity 101a. That is, the end surface of the second locking portion 1042 away from the first locking portion 1041, and the surface of the second housing portion 1012 away from the accommodating cavity 101a are both configured to be bonded with the first bonding adhesive n1, so that the second locking portion 1042 and the second housing portion 1012 are configured to be fixedly connected through the first bonding adhesive n1.

[0104] Optionally, the first bonding adhesive n1 includes a first adhesive portion n11 and a second adhesive portion n12 of an integral structure. The first adhesive portion n11 is configured to be located at an end surface of the second locking portion 1042 away from the first locking portion 1041, and the first adhesive portion n11 is configured to be bonded to an end surface of the second locking portion 1042 away from the first locking portion 1041. The second adhesive portion n12 is configured to be located at a surface of the second shell portion 1012 away from the accommodating cavity 101a, and the second adhesive portion n12 is configured to be bonded to a surface of the second shell portion 1012 away from the accommodating cavity 101a. That is, the second locking portion 1042 and the second shell portion 1012 are both configured to be bonded to different areas of the same surface of the first bonding adhesive n1.

[0105] Optionally, the first bonding adhesive n1 may be a weak adhesive. Before the flexible circuit board 103 and the display panel 102 are bound and connected, the first bonding adhesive n1 bonded to the second locking portion 1042 and the second housing portion 1012 may be torn off, thereby releasing the fixed connection between the second locking portion 1042 and the second housing portion 1012. Afterwards, during the binding and connection process of the flexible circuit board 103 and the display panel 102, the second locking portion 1042 rotates toward the side close to the first locking portion 1041, thereby causing the second locking portion 1042 to be buckled onto the side of the second panel portion 1023 away from the first panel portion 1021.

[0106] Reference 1, Figure 2 and Figure 8 The locking assembly 104 further includes a third locking portion 1043. The third locking portion 1043 can be fixedly connected to a surface of the second locking portion 1042 away from the first locking portion 1041. For example, the third locking portion 1043 can be an integral structure with the second locking portion 1042.

[0107] After the flexible circuit board 103 and the display panel 102 are fixedly connected, and before the flexible circuit board 103 and the display panel 102 are bound and connected (i.e., when the second panel portion 1023 is located outside the accommodating cavity 101a), the second locking portion 1042 is located on the side of the second housing portion 1012 away from the first housing portion 1011, and the third locking portion 1043 is located on the side of the second housing portion 1012 away from the accommodating cavity 101a. In order to achieve a fixed connection between the locking assembly 104 and the housing assembly 101, a first bonding adhesive n1 may be provided between the third locking portion 1043 and the second housing portion 1012, and the third locking portion 1043 and the second housing portion 1012 are configured to be bonded by the first bonding adhesive n1. That is, the third locking portion 1043 and the second housing portion 1012 are respectively configured to be bonded to two different surfaces of the first bonding adhesive n1.

[0108] Optionally, the first bonding adhesive n1 may be a weak adhesive. Before the flexible circuit board 103 and the display panel 102 are bound and connected, the fixed connection between the third locking portion 1043 and the second housing portion 1012 may be released, and the first bonding adhesive n1 on the surface of the third locking portion 1043 and the second housing portion 1012 may be torn off. Afterwards, during the binding and connection process of the flexible circuit board 103 and the display panel 102, the second locking portion 1042 drives the third locking portion 1043 to rotate toward the side close to the first locking portion 1041, thereby causing the second locking portion 1042 to be buckled on the side of the second panel portion 1023 away from the first panel portion 1021.

[0109] Fig. 9 is an exploded schematic diagram of a locking assembly provided in an embodiment of the present application. Fig. 9The locking assembly 104 further includes a supporting portion 1044. The supporting portion 1044 may include an annular first supporting structure 10441 and a second supporting structure 10442 fixedly connected to the first supporting structure 10441.

[0110] refer to Fig.10 and Fig.11 , after the flexible circuit board 103 and the display panel 102 are fixedly connected, and before the flexible circuit board 103 and the display panel 102 are bound and connected (i.e., when the second panel portion 1023 is located outside the accommodating cavity 101a), the first supporting structure 10441 is configured to be disposed on a side of the housing assembly 101 away from the display panel 102, and the first supporting structure 10441 is configured to surround the housing assembly 101, and be sleeved on the edge of the housing assembly 101, and be fixedly connected to the edge of the housing assembly 101. The first supporting structure 10441 is configured to support the housing assembly 101, the display panel 102, and the flexible circuit board 103. The second supporting structure 10442 has a fixing groove 10442a (the fixing groove 10442a may be a through groove), and the second locking portion 1042 is configured to be located in the fixing groove 10442a, and is fixedly connected to the second supporting structure 10442. Furthermore, the second support structure 10442 is configured such that an orthographic projection on the flexible circuit board 103 is located inside the flexible circuit board 103 .

[0111] Optionally, the shape of the first support structure 10441 of the support portion 1044 can match the shape of the housing assembly 101, and the first support structure 10441 can also be called a simulated housing assembly structure. Through the design of the support portion 1044, the support performance of the locking assembly 104 on the flexible circuit board 103 can be further improved. In this way, during the preparation process of the display module 100, the locking assembly 104 can play a better supporting role for the flexible circuit board 103, reducing the impact of the shaking of the flexible circuit board 103 on the bending portion 1022.

[0112] Since the support portion 1044 is a shell component structure, it may affect the appearance of the display module 100, resulting in a wider frame width of the display module 100. Therefore, before the flexible circuit board 103 and the display panel 102 are bound and connected, the support portion 1044 can be removed first, and only the various locking portions of the locking assembly 104 are retained (that is, the display module does not include the support portion 1044 in the locking assembly 104, but only includes the various locking portions in the locking assembly 104). Afterwards, during the binding and connection process of the flexible circuit board 103 and the display panel 102, the second locking portion 1042 rotates toward the side close to the first locking portion 1041, thereby causing the second locking portion 1042 to be buckled on the side of the second panel portion 1023 away from the first panel portion 1021.

[0113] In the embodiment of the present application, the first support structure 10441 and the shell assembly 101 are configured to be bonded by weak adhesive, or the first support structure 10441 and the shell assembly 101 are configured to be connected by snap-fit.

[0114] Optionally, the support portion 1044 of the locking assembly 104 further includes a fastening collar 10443. The fastening collar 10443 is configured to be located between the first support structure 10441 and the housing assembly 101. The fastening collar 10443 is configured to fasten the connection between the first support structure 10441 and the housing assembly 101, and can prevent the first support structure 10441 from impacting the housing assembly 101. For example, the fastening collar 10443 can be foam or rubber.

[0115] Optionally, the first support structure 10441 and the second support structure 10442 of the support portion 1044 may be plastic injection molded parts or metal sheet metal parts, which is not limited in this embodiment of the present application.

[0116] In the embodiment of the present application, Figures 1 to 11 , the display panel 102 further includes a driver chip (driver IC) 1024. The driver chip 1024 is fixedly connected to the second panel portion 1023. For example, the driver chip 1024 is disposed on a surface of the second panel portion 1023 away from the accommodating cavity 101a. After the second locking portion 1042 rotates toward the first locking portion 1041, the orthographic projection of the second locking portion 1042 on the second panel portion 1023 can cover the driver chip 1024, thereby enabling the second locking portion 1042 to protect the driver chip 1024.

[0117] Optionally, the second locking portion 1042 includes a second main body portion 10421 and an annular protrusion structure 10422 located on one side of the second main body portion 10421. The second main body portion 10421 and the annular protrusion structure 10422 form a receiving groove 1042a.

[0118] After the binding connection between the flexible circuit board 103 and the display panel 102 is completed, that is, the second panel part 1023 is arranged on the side of the first panel part 1021 away from the housing assembly 101 through the bending part 1022, and the second panel part 1023 is located in the accommodating cavity 101a, the accommodating groove 1042a can be used to accommodate the driver chip 1024. For example, the annular protruding structure 10422 is arranged around the driver chip 1024, and the second main body part 10421 is located on the side of the driver chip 1024 away from the second panel part 1023. In this case, it can be ensured that the driver chip 1024 is wrapped in the accommodating groove 1042a of the second panel part 1023, so as to prevent other devices from affecting the driver chip 1024.

[0119] For further reference, Fig.12 The second locking portion 1042 may further include a protective layer 10423. The protective layer 10423 may be located in the area surrounded by the annular protrusion structure 10422, and the protective layer 10423 is connected to the second main body portion 10421. For example, the protective layer 10423 may be located on the surface of the second main body portion 10421 in the area surrounded by the annular protrusion structure 10422.

[0120] Optionally, the material of the protective layer 10423 can be one of copper foil, aluminum foil, absorbing material, semi-conductive material, and foam. Protective layers 10423 of different materials can have different effects. Of course, various protective effects can also be achieved in other ways.

[0121] For example, the implementation of electromagnetic interference (EMI) protection includes: 1. The material of the second main body part 10421 and the annular protrusion structure 10422 is a metal material. 2. The material of the protective layer 10423 is an absorbing material, or the outer surface of the second locking part 1042 can also form an absorbing material. 3. The wall thickness of each position in the annular protrusion structure 10422 can be different, for example, the wall thickness of the side close to the flexible circuit board 103 (the flexible circuit board 103 has a capacitor and an inductor) can be larger, and the wall thickness of the side away from the flexible circuit board 103 can be smaller. For example, the annular protrusion structure 10422 includes a first protrusion portion and a second protrusion portion, and the first protrusion portion is closer to the flexible circuit board 103 relative to the second protrusion portion. The wall thickness of the first protrusion portion is greater than the wall thickness of the second protrusion portion. The wall thickness of the second protruding portion may be equal to 0, that is, the annular protruding structure 10422 is a non-closed protruding structure, and a side of the annular protruding structure 10422 away from the flexible circuit board 103 may be an open window.

[0122] The implementation of electrostatic discharge (ESD) protection includes: 1. The material of the second main body 10421 and the annular protrusion structure 10422 is a semi-conductive material, such as one of polycarbonate (PC), acrylonitrile butadiene styrene (ABS) and polyethylene glycol terephthalate (PET), and the resistance value of the semi-conductive material ranges from 104Ω (ohm) to 109Ω. 2. A grounding contact pin is set in the receiving groove 1042a, and the grounding contact pin is connected to the grounding copper exposed area of ​​the flexible circuit board 103 through a lead. 3. The material of the protective layer 10423 is copper foil.

[0123] The implementation of buffer protection includes: the material of the protection layer 10423 is foam. The foam can prevent the driver chip 1024 from internal stress cracks (cracks) when subjected to thermal shock, external pressure, impact and scratches, and can limit the high heat absorption of the driver chip 1024 due to thermal expansion and contraction.

[0124] The heat absorption protection includes: 1. The wall thickness of the annular protrusion structure 10422 is designed to be thicker, for example, the wall thickness of the annular protrusion structure 10422 ranges from 0.5 mm (millimeter) to 2 mm. 2. The material of the second main body 10421 and the annular protrusion structure 10422 can be copper foil or aluminum foil with good thermal conductivity. 3. The material of the protective layer 10423 is copper foil or aluminum foil with good thermal conductivity.

[0125] In the examples of this application, refer to Figure 2 , the second locking portion 1042 also includes a second bonding adhesive 10424. The second bonding adhesive 10424 is located in the area surrounded by the annular protruding structure 10422. One side of the second bonding adhesive 10424 is bonded to the surface of the second main body portion 10421, and the other side of the second bonding adhesive 10424 is used to bond to the surface of the driver chip 1024 away from the second panel portion 1023. Therefore, after the second locking portion 1042 is rotated in the direction close to the first locking portion 1041, when the driver chip 1024 is wrapped in the receiving groove 1042a, the side of the driver chip 1024 away from the second panel portion 1023 can be bonded to the second bonding adhesive 10424 in the receiving groove 1042a, thereby ensuring the connection reliability between the locking component 104 and the display panel 102. The second bonding adhesive 10424 can be called a protective adhesive (IC cover tape) for the driver chip.

[0126] Optionally, when the locking assembly 104 includes both the protective layer 10423 and the second bonding adhesive 10424, the protective layer 10423 can be disposed between the second bonding adhesive 10424 and the second main body 10421, and the two sides of the second bonding adhesive 10424 are respectively bonded to the protective layer 10423 and the driving chip 1024. Alternatively, the second bonding adhesive 10424 is disposed between the protective layer 10423 and the second main body 10421, and the two sides of the second bonding adhesive 10424 are respectively bonded to the protective layer 10423 and the second main body 10421.

[0127] In the examples of this application, refer to Fig.13The first locking portion 1041 may be a Mylar sheet with both stickiness and flexibility. The stickiness is used to achieve bonding, and the flexibility is used to achieve bending. Optionally, the stickiness of the Mylar sheet 1041 may refer to single-sided stickiness (single-sided adhesive tape) or double-sided stickiness (double-sided adhesive tape), which is not specifically limited in the present embodiment of the application.

[0128] Combination Figure 1 and Fig.13 The Mylar sheet 1041 is used to bond with the second panel portion 1023. The flexibility of the Mylar sheet 1041 facilitates bending, so that the second locking portion 1042 can rotate relative to the first locking portion 1041.

[0129] Optional, reference Fig.13 , at least part of the first locking portion 1041 is located on the side of the second locking portion 1042 away from the display panel 102, and the first locking portion 1041 and the second locking portion 1042 are bonded to each other on the side away from the display panel 102. In this case, the area of ​​the surface of the second main body portion 10421 where the annular protruding structure 10422 is not provided and close to the first locking portion 1041 is the bonding area 1042b. At least part of the first locking portion 1041 and the annular protruding structure 10422 of the second locking portion 1042 are located on different sides of the second main body portion 10421, and the first locking portion 1041 can be bonded to the bonding area 1042b of the second main body portion 10421.

[0130] Alternatively, refer to Fig.12 , the first locking portion 1041 is located between the second locking portion 1042 and the display panel 102, and the first locking portion 1041 and the second locking portion 1042 are bonded to one side of the display panel 102. In this case, the area of ​​the surface of the second main body portion 10421 provided with the annular protrusion structure 10422 close to the first locking portion 1041 is the bonding area 1042b. At least part of the first locking portion 1041 and the annular protrusion structure 10422 of the second locking portion 1042 are located on the same side of the second main body portion 10421, and the first locking portion 1041 can be bonded to the bonding area 1042b of the second main body portion 10421.

[0131] That is, when the first locking portion 1041 is a Mylar sheet, a portion of the Mylar sheet is adhered to the surface of the second panel portion 1023, and another portion is adhered to the surface of the second locking portion 1042. Fig.13 In the locking assembly 104 shown, the first locking portion 1041 (Mylar sheet) can be a double-sided adhesive tape. Fig.12 In the locking assembly 104 shown, the first locking portion 1041 (Mylar sheet) may be a single-sided adhesive tape.

[0132] refer to Fig.14The second locking portion 1042 has at least one connecting structure 10424 ( Fig.14 Three connection structures 10424 are shown. Each connection structure 10424 has a through hole. The second locking portion 1042 of the locking assembly 104 also includes a rotation axis 10425, which can be located in the through hole of the connection structure 10424, and the rotation axis 10425 can rotate with the axis of the through hole as the rotation axis. In addition, both ends of the rotation axis 10425 can be fixedly connected to the first locking portion 1041. Therefore, in the process of realizing the binding connection between the flexible circuit board 103 and the display module 100, the second locking portion 1042 and the first locking portion 1041 are rotated based on the rotation axis 10425.

[0133] refer to Fig.14 The first locking portion 1041 includes a first main body portion 10411 and two fixing portions 10412. The two fixing portions 10412 are connected to the sides of the first main body portion 10411, and there is a gap G between the two fixing portions 10412. The rotation shaft 10425 and at least one connecting structure 10424 can be located in the gap G. Both fixing portions 10412 have fixing holes, one end of the rotation shaft 10425 is connected to the fixing hole of one fixing portion 10412, and the other end of the rotation shaft 10425 passes through the through hole of the connecting structure 10424 and is connected to the fixing hole of the other fixing portion 10412.

[0134] exist Fig.14 In the solution shown, the design of the rotating shaft 10425 can realize the relative rotation of the second locking part 1042 and the first locking part 1041. In addition, the first locking part 1041 can be attached to the surface of the second panel part 1023 by bonding adhesive. Optionally, in the solution of realizing rotation by the rotating shaft 10425, the second locking part 1042 can be obtained by using at least one material of ABS, PC and silicone based on the injection molding process.

[0135] In the embodiment of the present application, the first locking portion 1041 may be connected to the second panel portion 1023, or may be connected to the flexible circuit board 103. Moreover, the preparation process of the display module 100 may be different for different connection modes.

[0136] Optionally, if the first locking portion 1041 is connected to the second panel portion 1023, the preparation process of the display module includes: assembling the display panel 102 and the shell assembly 101; fixing the flexible circuit board 103 and the second panel portion 1023 of the display panel 102 (that is, the flexible circuit board 103 is suspended relative to the shell assembly 101); fixing the first locking portion 1041 of the locking assembly 104 and the second panel portion 1023, and fixing the second locking portion 1042 of the locking assembly 104 and the shell assembly 101; transporting within the factory for other series of processes; releasing the connection between the second locking portion 1042 and the shell assembly 101; binding the flexible circuit board 103 and the display panel 102, and at the same time, the second locking portion 1042 is rotated relative to the first locking portion 1041 and buckled on the driver chip 1024 (which can be called the locking structure and the driver chip 1024 binding), so that the second locking portion 1042 protects the driver chip 1024.

[0137] If the first locking portion 1041 is connected to the flexible circuit board 103, the preparation process of the display module includes: assembling the display panel 102 and the shell assembly 101; fixing the first locking portion 1041 and the flexible circuit board 103; fixing the flexible circuit board 103 and the second panel part 1023 of the display panel 102 (that is, the flexible circuit board 103 is suspended relative to the shell assembly 101), and fixing the second locking portion 1042 of the locking assembly 104 and the shell assembly 101; transporting within the factory for other series of processes; releasing the connection between the second locking portion 1042 and the shell assembly 101; binding the flexible circuit board 103 and the display panel 102, and at the same time, the second locking portion 1042 is rotated relative to the first locking portion 1041 and buckled on the driver chip 1024 (which can be called the locking structure and the driver chip 1024 binding), so that the second locking portion 1042 protects the driver chip 1024.

[0138] It should be noted that the reference Figure 1 , when the first locking portion 1041 and the second panel portion 1023 are connected, the first connection point L1 of the first locking portion 1041 and the second panel portion 1023 is closer to the first panel portion 1021 relative to the second connection point L2 of the flexible circuit board 103 and the second panel portion 1023. In addition, the third connection point L3 of the driver chip 1024 and the second panel portion 1023 is located between the first connection point L1 and the second connection point L2. In this case, when the second locking portion 1042 and the housing assembly 101 are fixedly connected, the annular protrusion structure 10422 can be further away from the housing assembly 101 relative to the second main body portion 10421. Therefore, after the second locking portion 1042 rotates relative to the first locking portion 1041, the driver chip 1024 can be wrapped in the receiving groove 1042a.

[0139] When the first locking portion 1041 is connected to the flexible circuit board 103, the fourth connection point between the first locking portion 1041 and the flexible circuit board 103 is away from the first panel portion 1021 relative to the second connection point L2 between the flexible circuit board 103 and the second panel portion 1023. In addition, the third connection point L3 between the driver chip 1024 and the second panel portion 1023 is located on the side of the second connection point L2 away from the fourth connection point. In this case, when the second locking portion 1042 and the housing assembly 101 are fixedly connected, the annular protrusion structure 10422 can be closer to the housing assembly 101 relative to the second main body portion 10421. Therefore, after the second locking portion 1042 rotates relative to the first locking portion 1041, the driver chip 1024 can be wrapped in the receiving groove 1042a.

[0140] In summary, an embodiment of the present application provides a locking assembly, which is applied to a display module. The display module includes a shell assembly, a display panel, and a flexible circuit board. After the flexible circuit board and the second panel portion of the display panel are fixedly connected, and the flexible circuit board and the second panel portion are both located outside the accommodating cavity, the locking assembly can be fixedly connected to the shell assembly of the display module. The presence of the locking assembly can make the flexible circuit board and the shell assembly relatively fixed, reduce the shaking amplitude of the flexible circuit board, and reduce the force exerted by the shaking of the flexible circuit board on the bending portion of the display panel, avoid cracks in the bending portion, and improve the yield of the display module.

[0141] Figure 3 is a partial schematic diagram of a display module provided in an embodiment of the present application. Figure 3 The display module 100 includes: a housing component 101, a display panel 102, a flexible circuit board 103, and a first locking portion 1041 and a second locking portion 1042 of a locking component 104. The locking component 104 may be the locking component 104 provided in the above embodiment.

[0142] The housing assembly 101 includes a first housing portion 1011 and a second housing portion 1012. The second housing portion 1012 is an annular structure and is connected to the edge of the first housing portion 1011. The first housing portion 1011 and the second housing portion 1012 form a receiving cavity 101a.

[0143] The display panel 102 includes a first panel portion 1021, a bent portion 1022, and a second panel portion 1023. The first panel portion 1021 and the bent portion 1022 are located in the accommodating cavity 101a, and the bent portion 1022 is closer to the edge of the accommodating cavity 101a relative to the first panel portion 1021, and the second panel portion 1023 is connected to the first panel portion 1021 through the bent portion 1022. The flexible circuit board 103 is connected to the second panel portion 1023.

[0144] The first locking portion 1041 of the locking assembly 104 is connected to the second panel portion 1023 or the flexible circuit board 103. The embodiment of the present application takes the connection between the first locking portion 1041 and the second panel portion 1023 as an example. The second locking portion 1042 can rotate relative to the first locking portion 1041, and the second locking portion 1042 is located on a side of the second panel portion 1023 away from the first panel portion 1021.

[0145] In the process of preparing the display module 100, refer to Figure 2 After the display panel 102 and the housing assembly 101 are assembled, the first panel portion 1021 of the display panel 102 is located in the housing cavity 101a of the housing assembly 101, the bent portion 1022 is closer to the edge of the housing cavity 101a than the first panel portion 1021, the second panel portion 1023 extends out of the housing cavity 101a from the edge of the housing cavity 101a, and the second panel portion 1023 can be located outside the housing cavity 101a. Afterwards, the flexible circuit board 103 and the second panel portion 1023 can be fixedly connected. In this case, the flexible circuit board 103 is also located outside the housing cavity 101a, and is suspended on one side of the housing cavity 101a of the housing assembly 101 relative to the housing assembly 101. After some further processes (the prepared module part may need to be transported during the process), the second panel part 1023 can be bent to the side of the first panel part 1021 away from the housing assembly 101 through the bending part 1022, and the flexible circuit board 103 is located on the side of the second panel part 1023 away from the housing assembly 101. In this case, at least part of the flexible circuit board 103 is also located in the accommodating cavity 101a, so as to realize the binding connection between the flexible circuit board 103 and the second panel part 1023 of the display panel 102.

[0146] Furthermore, during the process that the second panel portion 1023 is gradually bent to the side of the first panel portion 1021 away from the housing assembly 101 through the bending portion 1022 (i.e., during the binding connection between the flexible circuit board 103 and the display panel 102), the second locking portion 1042 can rotate relative to the first locking portion 1041. Figure 3In the case where the second panel portion 1023 is bent by the bent portion 1022 and disposed on a side of the first panel portion 1021 away from the housing assembly 101, and is located in the accommodating cavity 101a (i.e., the binding connection between the flexible circuit board 103 and the display panel 102 is completed), the second locking portion 1042 can be located on a side of the second panel portion 1023 away from the first panel portion 1021. That is, due to the relative rotation of the second locking portion 1042 and the first locking portion 1041, the second locking portion 1042 can be buckled on the side of the second panel portion 1023 away from the first panel portion 1021.

[0147] After the flexible circuit board 103 and the display panel 102 are fixedly connected, and before the flexible circuit board 103 and the display panel 102 are bound and connected (i.e., when the second panel portion 1023 is located outside the accommodating cavity 101a), the second locking portion 1042 can be fixedly connected to the housing assembly 101 due to the presence of the locking assembly 104. In this way, even if the flexible circuit board 103 shakes, the presence of the locking assembly 104 can indirectly fix the flexible circuit board 103 and the housing assembly 101, and play a certain supporting role for the flexible circuit board 103. Therefore, on the one hand, the shaking amplitude of the flexible circuit board 103 can be reduced, and on the other hand, the force exerted by the shaking on the bent portion 1022 of the display panel 102 can be reduced, thereby reducing the impact of the shaking on the bent portion 1022, avoiding cracks in the bent portion 1022, and improving the yield of the display module 100.

[0148] Furthermore, in order to realize the binding connection between the flexible circuit board 103 and the display panel 102, it is necessary to release the fixed connection between the second locking portion 1042 and the housing assembly 101 before the binding connection. That is, the second locking portion 1042 and the housing assembly 101 are in a free state.

[0149] In the embodiment of the present application, after the flexible circuit board 103 and the display panel 102 are bound and connected, the second locking portion 1042 is buckled on the side of the second panel portion 1023 away from the first panel portion 1021, which can protect the components at the relevant positions on the second panel portion 1023. That is, the design of the locking component 104 in the display module can not only support the flexible circuit board 103 during the preparation process of the display module 100, but also protect the components on the display panel 102.

[0150] refer to Figure 4 The flexible circuit board 103 may include a connector 1031, a resistor or capacitor component 1032, and a plug connector 1033. The flexible circuit board 103 may also include other components, which are not limited in the embodiment of the present application.

[0151] In summary, the embodiment of the present application provides a display module, which includes a shell assembly, a display panel, and a flexible circuit board. After the flexible circuit board and the second panel portion of the display panel are fixedly connected, and the flexible circuit board and the second panel portion are both located outside the accommodating cavity, the locking assembly can be fixedly connected to the shell assembly of the display module. The presence of the locking assembly can make the flexible circuit board and the shell assembly relatively fixed, reduce the shaking amplitude of the flexible circuit board, and reduce the force exerted by the shaking of the flexible circuit board on the bending portion of the display panel, avoid cracks in the bending portion, and improve the yield of the display module.

[0152] refer to Figures 1 to 11 , the display panel 102 also includes a driver chip 1024. The driver chip 1024 is fixedly connected to the second panel portion 1023. The second locking portion 1042 includes a second main body portion 10421, and an annular protrusion structure 10422 located on one side of the second main body portion 10421, and the second main body portion 10421 and the annular protrusion structure 10422 constitute a receiving groove 1042a. The driver chip 1024 is located in the receiving groove 1042a, and the annular protrusion structure 10422 is arranged around the driver chip 1024, and the second main body portion 10421 is located on the side of the driver chip 1024 away from the second panel portion 1023. For example, the annular protrusion structure 10422 is arranged around the driver chip 1024, and the second main body portion 10421 is located on the side of the driver chip 1024 away from the second panel portion 1023. In this case, it can be ensured that the driving chip 1024 is wrapped in the receiving groove 1042 a of the second panel portion 1023 , thereby preventing other components from affecting the driving chip 1024 .

[0153] Optionally, when the locking assembly 104 includes the third locking portion 1043, the display module 100 may also include the third locking portion 1043. The third locking portion 1043 may be fixedly connected to a surface of the second locking portion 1042 away from the first locking portion 1041.

[0154] Before the flexible circuit board 103 and the display panel 102 are bound and connected, the third locking portion 1043 is also used to be fixedly connected to the housing assembly 101. That is, the second locking portion 1042 can be fixedly connected to the housing assembly 101 through the third locking portion 1043, thereby providing support for the flexible circuit board 103.

[0155] refer to Fig.15 and Fig.16, the display module 100 further includes: a protective film 105. The protective film 105 can be located on a side of the second locking portion 1042 away from the first locking portion 1041. Of course, the protective film 105 can also be located between the second panel portion 1023 and the first locking portion 1041. The embodiment of the present application does not limit the position of the protective film 105. The protective film can be a protective film (IC on panel tape, COP tape) used to protect the driver chip after the driver chip and the display panel are connected, that is, the main function of the protective film 105 is to protect the driver chip.

[0156] Optionally, the orthographic projection of the protective film 105 on the housing assembly 101 covers the orthographic projection of the second locking portion 1042 on the housing assembly 101. Also, the orthographic projection of the protective film 105 on the housing assembly 101 overlaps the orthographic projection of the target portion of the flexible circuit board 103 on the housing assembly 101.

[0157] refer to Fig.15 Before the protective film 105 and the locking assembly 104 are assembled, the protective film 105 can be a flat film. Fig.16 After the protective film 105 is assembled, if the protective film 105 is located on the side of the second locking portion 1042 away from the first locking portion 1041, the shape of the surface formed by the protective film 105 can match the shape of the second locking portion 1042 and the target portion. If the protective film 105 is located between the second panel portion 1023 and the second locking portion 1042, the shape of the surface formed by the protective film 105 can match the shape of the target portion.

[0158] In summary, the embodiment of the present application provides a display module, which includes a shell assembly, a display panel, and a flexible circuit board. After the flexible circuit board and the second panel portion of the display panel are fixedly connected, and the flexible circuit board and the second panel portion are both located outside the accommodating cavity, the locking assembly can be fixedly connected to the shell assembly of the display module. The presence of the locking assembly can make the flexible circuit board and the shell assembly relatively fixed, reduce the shaking amplitude of the flexible circuit board, and reduce the force exerted by the shaking of the flexible circuit board on the bending portion of the display panel, avoid cracks in the bending portion, and improve the yield of the display module.

[0159] The present application also provides a method for preparing a display module, the method comprising:

[0160] Step S101, obtaining a shell component.

[0161] The housing assembly 101 includes a first housing portion 1011 and a second housing portion 1012. The second housing portion 1012 is an annular structure and is connected to the edge of the first housing portion 1011. The first housing portion 1011 and the second housing portion 1012 form a receiving cavity 101a.

[0162] Step S102: Obtain a display panel, and fix the display panel and the housing assembly together.

[0163] The first panel portion 1021 of the display panel 102 is located in the accommodating cavity 101a, the bent portion 1022 of the display panel 102 is bent at the edge of the accommodating cavity 101a, and the second panel portion 1023 of the display panel 102 is located outside the accommodating cavity 101a.

[0164] Step S103: Obtain a locking assembly, and connect the first locking portion of the locking assembly to the second panel portion.

[0165] In the embodiment of the present application, the obtained locking assembly 104 may include at least a first locking portion 1041 and a second locking portion 1042. Further, the locking assembly 104 may include a third locking portion 1043. Alternatively, the locking assembly 104 may include a supporting portion 1044, and the supporting portion 1044 includes a first supporting structure 10441 and a second supporting structure 10442.

[0166] In addition, the first locking part 1041 of the obtained locking assembly 104 may have a sticky and flexible Mylar sheet. Alternatively, the first locking part 1041 and the second locking part 1042 in the obtained locking assembly 104 are rotated by the rotating shaft 10425 .

[0167] Step S104: fix the second locking portion of the locking assembly and the housing assembly into connection.

[0168] Optionally, the connection method between the second locking portion 1042 of the locking assembly 104 and the housing assembly 101 can refer to the above-mentioned FIG. Figures 4 to 7 Alternatively, when the locking assembly 104 includes the third locking portion 1043 , the third locking portion 1043 may be bonded to the surface of the housing assembly 101 away from the accommodating cavity 101 a , thereby making the second locking portion 1042 fixedly connected to the housing assembly 101 through the third locking portion 1043 .

[0169] Step S105: obtain a flexible circuit board, and fix the flexible circuit board and the second panel portion together.

[0170] In the embodiment of the present application, after the flexible circuit board 103 and the second panel portion 1023 are fixedly connected, the flexible circuit board 103 is also located outside the accommodating cavity 101a. In this case, the flexible circuit board 103 is suspended relative to the housing assembly 101, and the locking assembly 104 can support the flexible circuit board 103.

[0171] Step S106: releasing the connection between the second locking portion and the housing assembly, and binding the flexible circuit board and the display panel together.

[0172] In the embodiment of the present application, before the flexible circuit board 103 and the display panel 102 are bound and connected, the connection between the second locking portion 1042 and the housing assembly 101 can be released first, so that the second panel portion 1023 is gradually bent to the side of the first panel portion 1021 away from the housing assembly 101 through the bending portion 1022, and the second locking portion 1042 can be rotated toward the first locking portion 1041. After the flexible circuit board 103 and the display panel 102 are bound and connected, the second panel portion 1023 can be located in the accommodating cavity 101a, and the flexible circuit board 103 is located on the side of the first panel portion 1021 away from the housing assembly 101. In addition, a part of the flexible circuit board 103 is located in the accommodating cavity 101a. At this stage, the second locking portion 1042 can be buckled on the side of the second panel portion 1023 away from the first panel portion 1021.

[0173] In the embodiment of the present application, after step S106, step S107 may be further included, in which the second locking portion 1042 and the target portion of the flexible circuit board 103 are covered with a protective film 105 so that the protective film 105 protects the second locking portion 1042 and the target portion of the flexible circuit board 103.

[0174] The present application also provides another method for preparing a display module, the method comprising:

[0175] Step S201, obtaining a shell component.

[0176] The housing assembly 101 includes a first housing portion 1011 and a second housing portion 1012. The second housing portion 1012 is an annular structure and is connected to the edge of the first housing portion 1011. The first housing portion 1011 and the second housing portion 1012 form a receiving cavity 101a.

[0177] Step S202: Obtain a display panel, and fix the display panel and the housing assembly together.

[0178] The first panel portion 1021 of the display panel 102 is located in the accommodating cavity 101a, the bent portion 1022 of the display panel 102 is bent at the edge of the accommodating cavity 101a, and the second panel portion 1023 of the display panel 102 is located outside the accommodating cavity 101a.

[0179] Step S203: Obtain the locking component and the flexible circuit board, refer to Fig.17 , connecting the first locking portion of the locking assembly and the flexible circuit board.

[0180] In the embodiment of the present application, the obtained locking assembly 104 may include at least a first locking portion 1041 and a second locking portion 1042. Further, the locking assembly 104 may include a third locking portion 1043. Alternatively, the locking assembly 104 may include a supporting portion 1044, and the supporting portion 1044 includes a first supporting structure 10441 and a second supporting structure 10442.

[0181] In addition, the first locking part 1041 of the obtained locking assembly 104 may have a sticky and flexible Mylar sheet. Alternatively, the first locking part 1041 and the second locking part 1042 in the obtained locking assembly 104 are rotated by the rotating shaft 10425 .

[0182] Step S204: fix the flexible circuit board and the second panel portion in connection, and fix the second locking portion of the locking assembly and the housing assembly in connection.

[0183] In the examples of this application, refer to Fig.18 After the flexible circuit board 103 and the second panel portion 1023 are fixedly connected, the flexible circuit board 103 is also located outside the accommodating cavity 101a. In this case, the flexible circuit board 103 is suspended relative to the housing assembly 101, and the locking assembly 104 is fixedly connected to the housing assembly 101, so that the locking assembly 104 can support the flexible circuit board 103.

[0184] Step S106: releasing the connection between the second locking portion and the housing assembly, and binding the flexible circuit board and the display panel together.

[0185] In the embodiment of the present application, before the flexible circuit board 103 and the display panel 102 are bound and connected, the connection between the second locking portion 1042 and the housing assembly 101 can be released first, so that the second panel portion 1023 is gradually bent to the side of the first panel portion 1021 away from the housing assembly 101 through the bending portion 1022. At this stage, the second locking portion 1042 can rotate toward the first locking portion 1041. Fig.19After the flexible circuit board 103 and the display panel 102 are bound and connected, the second panel portion 1023 can be located in the accommodating cavity 101a, and the flexible circuit board 103 is located on the side of the first panel portion 1021 away from the housing assembly 101. In addition, a portion of the flexible circuit board 103 is located in the accommodating cavity 101a. At this stage, the second locking portion 1042 can be buckled on the side of the second panel portion 1023 away from the first panel portion 1021.

[0186] In the embodiment of the present application, after step S206, step S207 may be further included, in which the second locking portion 1042 and the target portion of the flexible circuit board 103 are covered with a protective film 105 so that the protective film 105 protects the second locking portion 1042 and the target portion of the flexible circuit board 103.

[0187] The present application also provides a method for preparing a display module, the method comprising:

[0188] Step S301, obtaining a shell component.

[0189] The housing assembly 101 includes a first housing portion 1011 and a second housing portion 1012. The second housing portion 1012 is an annular structure and is connected to the edge of the first housing portion 1011. The first housing portion 1011 and the second housing portion 1012 form a receiving cavity 101a.

[0190] Step S302: Obtain a display panel, and fix the display panel and the housing assembly together.

[0191] The first panel portion 1021 of the display panel 102 is located in the accommodating cavity 101a, the bent portion 1022 of the display panel 102 is bent at the edge of the accommodating cavity 101a, and the second panel portion 1023 of the display panel 102 is located outside the accommodating cavity 101a.

[0192] Step S303: obtain a protective film and a locking assembly, and connect the first locking portion of the locking assembly to the protective film.

[0193] In the examples of this application, refer to Fig. 20 The first locking portion 1041 of the locking assembly 104 can be fixedly connected to one side of the protective film 105. The protective film 105 is a flat film when it is not covering the flexible circuit board 103.

[0194] In the embodiment of the present application, the obtained locking assembly 104 may include at least a first locking portion 1041 and a second locking portion 1042. Further, the locking assembly 104 may also include a third locking portion 1043. Alternatively, the locking assembly 104 may include a supporting portion 1044, and the supporting portion 1044 includes a first supporting structure 10441 and a second supporting structure 10442.

[0195] In addition, the first locking part 1041 of the obtained locking assembly 104 may have a sticky and flexible Mylar sheet. Alternatively, the first locking part 1041 and the second locking part 1042 in the obtained locking assembly 104 are rotated by the rotating shaft 10425 .

[0196] Step S304: connect the first locking portion of the locking assembly and the protective film as a whole to the second panel portion.

[0197] In the embodiment of the present application, the protection film 105 is closer to the second panel portion 1023 than the first locking portion 1041. That is, the protection film 105 is located between the first locking portion 1041 and the second panel portion 1023.

[0198] Step S305: fix the second locking portion of the locking assembly and the housing assembly into connection.

[0199] Optionally, the connection method between the second locking portion 1042 of the locking assembly 104 and the housing assembly 101 can refer to the above Figures 4 to 7 Alternatively, when the locking assembly 104 includes the third locking portion 1043 , the third locking portion 1043 may be bonded to the surface of the housing assembly 101 away from the accommodating cavity 101 a , thereby making the second locking portion 1042 fixedly connected to the housing assembly 101 through the third locking portion 1043 .

[0200] Step S306: obtain a flexible circuit board, and fix the flexible circuit board and the second panel portion together.

[0201] In the examples of this application, refer to Fig.21 After the flexible circuit board 103 and the second panel portion 1023 are fixedly connected, the flexible circuit board 103 is also located outside the accommodating cavity 101a. In this case, the flexible circuit board 103 is suspended relative to the housing assembly 101, and the locking assembly 104 can support the flexible circuit board 103.

[0202] Step S307 , releasing the connection between the second locking portion and the housing assembly, and binding the flexible circuit board and the display panel together.

[0203] In the embodiment of the present application, before the flexible circuit board 103 and the display panel 102 are bound and connected, the connection between the second locking portion 1042 and the shell assembly 101 can be released first, so that the second panel portion 1023 is gradually bent to the side of the first panel portion 1021 away from the shell assembly 101 through the bending portion 1022. At this stage, the second locking portion 1042 can be rotated toward the first locking portion 1041. After the flexible circuit board 103 and the display panel 102 are bound and connected, the second panel portion 1023 can be located in the accommodating cavity 101a, and the flexible circuit board 103 is located on the side of the first panel portion 1021 away from the shell assembly 101. In addition, a portion of the flexible circuit board 103 is located in the accommodating cavity 101a. At this stage, the second locking portion 1042 can be buckled on the side of the second panel portion 1023 away from the first panel portion 1021. Alternatively, refer to Fig. 22 , the first locking portion 1041 of the locking assembly 104 can be removed from the protective film 105 , and the driving chip 1024 can be protected by the protective film 105 .

[0204] The present application also provides a method for preparing a display module, the method comprising:

[0205] Step S401: obtain a display panel and a flexible circuit board, and fix the display panel and the flexible circuit board to be connected.

[0206] In the embodiment of the present application, the display panel 102 is a flat panel before being fixedly connected to the housing assembly 101. Therefore, after the display panel 102 and the flexible circuit board 103 are fixedly connected, the display panel 102 and the flexible circuit board 103 can be roughly on the same plane. For example, the display panel 102 and the flexible circuit board 103 can be on a supporting platform of a device in the preparation process.

[0207] Step S402: Obtain a shell assembly, and fix the display panel and the shell assembly together.

[0208] The housing assembly 101 includes a first housing portion 1011 and a second housing portion 1012. The second housing portion 1012 is an annular structure and is connected to the edge of the first housing portion 1011. The first housing portion 1011 and the second housing portion 1012 form a receiving cavity 101a.

[0209] After the display panel 102 is fixedly connected to the shell assembly 101, the first panel portion 1021 of the display panel 102 is located in the accommodating cavity 101a, the bent portion 1022 of the display panel 102 is bent at the edge of the accommodating cavity 101a, and the second panel portion 1023 of the display panel 102 is located outside the accommodating cavity 101a.

[0210] Step S403: obtain a protective film and a locking assembly, and connect the first locking portion of the locking assembly to the protective film.

[0211] In the examples of this application, refer to Fig. 20 The first locking portion 1041 of the locking assembly 104 can be fixedly connected to one side of the protective film 105. The protective film 105 is a flat film when it is not covering the flexible circuit board 103.

[0212] In the embodiment of the present application, the obtained locking assembly 104 may include at least a first locking portion 1041 and a second locking portion 1042. Further, the locking assembly 104 may include a third locking portion 1043. Alternatively, the locking assembly 104 may include a supporting portion 1044, and the supporting portion 1044 includes a first supporting structure 10441 and a second supporting structure 10442.

[0213] In addition, the first locking part 1041 of the obtained locking assembly 104 may have a sticky and flexible Mylar sheet. Alternatively, the first locking part 1041 and the second locking part 1042 in the obtained locking assembly 104 are rotated by the rotating shaft 10425 .

[0214] Step S404: connect the first locking portion of the locking assembly and the protective film as a whole to the second panel portion.

[0215] In the embodiment of the present application, the protection film 105 is closer to the second panel portion 1023 than the first locking portion 1041. That is, the protection film 105 is located between the first locking portion 1041 and the second panel portion 1023.

[0216] Step S405: fix the second locking portion of the locking assembly and the housing assembly into connection.

[0217] Optionally, the connection method between the second locking portion 1042 of the locking assembly 104 and the housing assembly 101 can refer to the above Figures 4 to 7 Alternatively, when the locking assembly 104 includes the third locking portion 1043 , the third locking portion 1043 may be bonded to the surface of the housing assembly 101 away from the accommodating cavity 101 a , thereby making the second locking portion 1042 fixedly connected to the housing assembly 101 through the third locking portion 1043 .

[0218] Step S406: release the connection between the second locking portion and the housing assembly, and bind the flexible circuit board and the display panel together.

[0219] In the embodiment of the present application, before the flexible circuit board 103 and the display panel 102 are bound and connected, the connection between the second locking portion 1042 and the housing assembly 101 can be released first, so that the second panel portion 1023 is gradually bent to the side of the first panel portion 1021 away from the housing assembly 101 through the bending portion 1022, and the second locking portion 1042 can be rotated toward the first locking portion 1041. After the flexible circuit board 103 and the display panel 102 are bound and connected, the second panel portion 1023 can be located in the accommodating cavity 101a, and the flexible circuit board 103 is located on the side of the first panel portion 1021 away from the housing assembly 101. In addition, a part of the flexible circuit board 103 is located in the accommodating cavity 101a. At this stage, the second locking portion 1042 can be buckled on the side of the second panel portion 1023 away from the first panel portion 1021.

[0220] In the embodiment of the present application, the assembly of the display panel 102 and the housing assembly 101, the assembly of the display panel 102 and the flexible circuit board 103, the assembly of the display panel 102 and the locking assembly 104, the assembly of the locking assembly 104 and the housing assembly 101, and the assembly of the protective film 105 and the locking assembly 104 can be adjusted in sequence according to actual needs. As mentioned above, the four preparation methods can all achieve the preparation of the display module. Of course, in addition to the above four preparation methods, the preparation of the display module can also be other methods, which will not be described in detail in the embodiment of the present application.

[0221] Since the method for preparing the display module can have substantially the same technical effects as the display module described in the previous embodiment, for the purpose of brevity, the technical effects of the method for preparing the display module will not be repeatedly described herein.

[0222] The embodiment of the present application further provides a display device, which may include a power supply component and a display module as provided in the above embodiment, wherein the power supply component is connected to the display module, and the power supply component is used to supply power to the display module.

[0223] Optionally, the shape of the display module may depend on the shape of the housing assembly 101, that is, the shape of the display module 100 matches the shape of the housing assembly 101. For example, the shape of the housing assembly 101 in the above embodiment may be circular, and thus the shape of the display module 100 is also circular. Of course, if the shape of the housing assembly 101 is square, the shape of the display module 100 may also be square.

[0224] Optionally, the display panel may be an organic light-emitting diode (OLED) display panel, and the display device may be an OLED display device. For example, the display panel may be an active-matrix organic light-emitting diode (AMOLED) display panel, and the display device may be an AMOLED display device.

[0225] Optionally, the display device may be a wearable display device. The wearable display device may be a smart watch. Alternatively, the display device may be any appropriate display device. For example, including but not limited to any product or component with a display function such as a mobile phone, a tablet computer, a television, a monitor, a laptop computer, a digital photo frame, a navigator, and an e-book.

[0226] Since the display device can have substantially the same technical effects as the display module described in the previous embodiment, the technical effects of the display module will not be repeatedly described herein for the purpose of brevity.

[0227] The terms used in the embodiments of this application are only used to explain the embodiments of this application, and are not intended to limit this application. Unless otherwise defined, the technical terms or scientific terms used in the embodiments of this application should be the common meanings understood by people with general skills in the field to which this application belongs.

[0228] The terms used in the implementation mode of the present application are only used to explain the embodiments of the present application, and are not intended to limit the present application. Unless otherwise defined, the technical terms or scientific terms used in the implementation mode of the present application should be the common meanings understood by people with ordinary skills in the field to which the present application belongs. The words "first", "second", "third" and similar words used in the patent application specification and claims of the present application do not indicate any order, quantity or importance, but are only used to distinguish different components. Similarly, words such as "one" or "one" do not indicate a quantity limit, but indicate that there is at least one. Words such as "include" or "include" and similar words mean that the elements or objects appearing in front of "include" or "include" include the elements or objects listed after "include" or "include" and their equivalents, and do not exclude other elements or objects. Words such as "connect" or "connected" and similar words are not limited to physical or mechanical connections, but may include electrical connections, whether direct or indirect. "Up", "down", "left", "right" and the like are only used to indicate relative positional relationships. When the absolute position of the described object changes, the relative positional relationship may also change accordingly.

[0229] The above description is only an optional embodiment of the present application and is not intended to limit the present application. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present application shall be included in the protection scope of the present application.

Claims

1. A locking assembly, characterized in that: The locking assembly is applied to a display module, the display module comprises a housing assembly, a display panel and a flexible circuit board; the housing assembly has a housing cavity, the display panel comprises a first panel portion, a bending portion and a second panel portion connected in sequence, the first panel portion and the bending portion are located in the housing cavity, and the bending portion is close to the edge of the housing cavity relative to the first panel portion, the flexible circuit board is connected to the second panel portion; the locking assembly comprises: a first locking portion, the first locking portion being used for fixedly connecting with the second panel portion or the flexible circuit board; a second locking portion, the second locking portion being rotatable relative to the first locking portion; In which, when the second panel portion is located outside the accommodating cavity, the second locking portion is also used to be fixedly connected to the shell assembly; when the second panel portion is arranged on the side of the first panel portion away from the shell assembly through the bending portion and is located in the accommodating cavity, the second locking portion is also used to rotate relative to the first locking portion so that the second locking portion is located on the side of the second panel portion away from the first panel portion.

2. The locking assembly according to claim 1, characterized in that: The housing assembly includes a first housing portion and a second housing portion, the second housing portion is an annular structure and is connected to the edge of the first housing portion, and the first housing portion and the second housing portion constitute the accommodating cavity; When the second panel portion is located outside the accommodating cavity, the second locking portion is located on a side of the second shell portion away from the first shell portion, and the orthographic projection of the second locking portion on the shell assembly overlaps with the second shell portion, and the surface of the second locking portion close to the second shell portion is configured to be bonded to the side of the second shell portion away from the first shell portion through the first bonding adhesive.

3. The locking assembly according to claim 1, characterized in that: The housing assembly includes a first housing portion and a second housing portion, the second housing portion is an annular structure and is connected to the edge of the first housing portion, and the first housing portion and the second housing portion constitute the accommodating cavity; When the second panel is partially located outside the accommodating cavity, the second locking portion is located on a side of the second housing portion away from the first housing portion, and an end surface of the second locking portion away from the first locking portion and a surface of the second housing portion away from the accommodating cavity are configured to be bonded to the first bonding adhesive; The first bonding adhesive includes a first adhesive portion and a second adhesive portion of an integral structure, the first adhesive portion is configured to be located on an end surface of the second locking portion away from the first locking portion, and the second adhesive portion is configured to be located on a surface of the second shell portion away from the accommodating cavity.

4. The locking assembly according to claim 1, characterized in that: The housing assembly includes a first housing portion and a second housing portion, the second housing portion is an annular structure and is connected to the edge of the first housing portion, and the first housing portion and the second housing portion constitute the accommodating cavity; The locking assembly further comprises: a third locking portion, the third locking portion being fixedly connected to a surface of the second locking portion away from the first locking portion; When the second panel portion is located outside the accommodating cavity, the second locking portion is located on a side of the second shell portion away from the first shell portion, the third locking portion is located on a side of the second shell portion away from the accommodating cavity, and the third locking portion and the second shell portion are configured to be fixedly connected via a first bonding adhesive, and the first bonding adhesive is configured to be located between the third locking portion and the second shell portion.

5. The locking assembly according to claim 1, characterized in that: The locking assembly further includes: a supporting portion, the supporting portion including an annular first supporting structure, and a second supporting structure fixedly connected to the first supporting structure; In the case where the second panel is partially located outside the accommodating cavity, the first supporting structure is configured to be disposed on a side of the housing assembly away from the display panel, the first supporting structure is configured to surround the housing assembly, and is fixedly connected to an edge of the housing assembly, and is used to support the housing assembly, the display panel and the flexible circuit board; The second supporting structure has a fixing groove, the first locking portion and the second locking portion are both located in the fixing groove, and the second locking portion is configured to be fixedly connected to the second supporting structure, and the second supporting structure is configured so that its orthographic projection on the flexible circuit board is located in the flexible circuit board.

6. The locking assembly according to any one of claims 1 to 5, characterized in that: The display panel further comprises a driving chip, and the driving chip is fixedly connected to the second panel portion; The second locking portion includes a second main body portion and an annular protrusion structure located on one side of the second main body portion, and the second main body portion and the annular protrusion structure constitute a receiving groove; When the second panel portion is arranged on a side of the first panel portion away from the shell assembly through the bending portion and is located in the accommodating cavity, the accommodating groove is used to accommodate the driving chip, the annular protrusion structure is arranged around the driving chip, and the second main body portion is located on a side of the driving chip away from the second panel portion.

7. The locking assembly according to claim 6, characterized in that: The second locking portion further includes a protective layer, the protective layer is located in the area surrounded by the annular protruding structure, and the protective layer is connected to the second main body portion; The material of the protective layer includes at least one of copper foil, aluminum foil, absorbing material, semi-conductive material, and foam.

8. The locking assembly according to claim 6, characterized in that: The second locking portion further includes a second bonding adhesive, and the second bonding adhesive is located in the area surrounded by the annular convex structure; One side of the second bonding adhesive is bonded to the surface of the second main body portion, and the other side of the second bonding adhesive is used to bond to the surface of the driving chip away from the second panel portion.

9. The locking assembly according to claim 6, characterized in that: The annular protrusion structure includes a first protrusion portion and a second protrusion portion, wherein the first protrusion portion is closer to the flexible circuit board than the second protrusion portion; The wall thickness of the first protruding portion is greater than the wall thickness of the second protruding portion.

10. The locking assembly according to any one of claims 1 to 5, characterized in that: The first locking portion is a Mylar sheet, which is used to be bonded to the second panel portion, and the Mylar sheet can be bent so that the second locking portion can rotate relative to the first locking portion.

11. The locking assembly according to claim 10, characterized in that At least a portion of the first locking portion is located on a side of the second locking portion away from the display panel, and the first locking portion and the side of the second locking portion away from the display panel are bonded; or, The first locking portion is located between the second locking portion and the display panel, and the first locking portion and the second locking portion are bonded to each other at a side close to the display panel.

12. The locking assembly according to any one of claims 1 to 5, characterized in that: The second locking portion includes at least one connecting structure at one end close to the first locking portion, and each of the connecting structures has a through hole; the locking assembly also includes a rotating shaft; The rotating shaft is located in the through hole of the connecting structure, and the rotating shaft can rotate with the axis of the through hole as the rotation axis, and both ends of the rotating shaft are fixedly connected to the first locking part.

13. The locking assembly according to claim 12, characterized in that The first locking portion includes a first main body portion and two fixing portions, the two fixing portions are connected to the sides of the first main body portion, and there is a gap between the two fixing portions; The connecting structure and the rotating shaft are located in the interval, and both of the two fixed parts have fixing holes. One end of the rotating shaft is connected to the fixing hole of one of the fixed parts, and the other end of the rotating shaft passes through the through hole of the connecting structure and is connected to the fixing hole of the other fixed part.

14. The locking assembly according to any one of claims 1 to 5, characterized in that: The display panel further comprises a driving chip, and the driving chip is fixedly connected to the second panel portion; The first locking portion is connected to the second panel portion, and a first connection between the first locking portion and the second panel portion is closer to the first panel portion than a second connection between the flexible circuit board and the second panel portion, and a third connection between the driving chip and the second panel portion is located between the first connection and the second connection; or, The first locking portion is connected to the flexible circuit board, and a fourth connection between the first locking portion and the flexible circuit board is away from the first panel portion relative to a second connection between the flexible circuit board and the second panel portion, and a third connection between the driving chip and the second panel portion is located on a side of the second connection away from the fourth connection.

15. A display module, characterized in that: The display module comprises: A shell assembly, the shell assembly comprising a first shell portion and a second shell portion, the second shell portion is an annular structure and is connected to the edge of the first shell portion, the first shell portion and the second shell portion constitute the accommodating cavity; a display panel, the display panel comprising a first panel portion, a bent portion and a second panel portion, the first panel portion and the bent portion being located in the accommodating cavity, the bent portion being closer to an edge of the accommodating cavity relative to the first panel portion, and the second panel portion being connected to the first panel portion via the bent portion; A flexible circuit board, wherein the flexible circuit board is partially connected to the second panel; And, a first locking part and a second locking part of a locking assembly, the locking assembly being the locking assembly described in any one of claims 1 to 14, the first locking part being connected to the second panel part or the flexible circuit board, the second locking part being able to rotate relative to the first locking part, and the second locking part being located on a side of the second panel part away from the first panel part.

16. The display module according to claim 15, characterized in that: The display panel further comprises a driving chip, and the driving chip is fixedly connected to the second panel portion; The second locking portion includes a second main body portion and an annular protrusion structure located on one side of the second main body portion, and the second main body portion and the annular protrusion structure constitute a receiving groove; The driving chip is located in the accommodating groove, and the annular protruding structure is arranged around the driving chip. The second main body portion is located at a side of the driving chip away from the second panel portion.

17. The display module according to claim 15 or 16, characterized in that: The display module further includes a third locking portion in the locking assembly, and the third locking portion is fixedly connected to a surface of the second locking portion away from the first locking portion.

18. The display module according to claim 15 or 16, characterized in that: The display module further includes: a protective film, the protective film being located between the second panel portion and the first locking portion, or the protective film being located on a side of the second locking portion away from the first locking portion; The orthographic projection of the protective film on the housing assembly covers the orthographic projection of the second locking portion on the housing assembly, and the orthographic projection of the protective film on the housing assembly overlaps with the orthographic projection of the target portion of the flexible circuit board on the housing assembly.

19. A display device, characterized in that: The display device comprises: a power supply component and a display module as claimed in any one of claims 15 to 18; Wherein, the power supply component is connected to the display module, and the power supply component is used to supply power to the display module.

20. The display device according to claim 19, characterized in that The display device is a wearable display device.

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