Display module

Abstract

The embodiment of the utility model provides a display module. The display module comprises a backlight module, a display panel and a driving circuit board. Wherein the back plate module at least comprises a back plate and a tongue piece arranged on at least one side of the back plate, the tongue piece at least comprises a bending part, the driving circuit board comprises a concave part, and the bending part is clamped in the concave part. According to the embodiment of the utility model, the concave part is directly arranged on the driving circuit board, and the bending part of the tongue piece is directly clamped in the concave part during installation, so that the driving circuit board is fixed, and the stability of the driving circuit board and the performance of the module in the use process can be effectively improved.

Description

Technical Field

[0001] The utility model relates to the technical field of manufacturing light-emitting display devices, in particular to a display module. Background Art

[0002] With the continuous development and improvement of display technology, people have put forward higher requirements on the display quality and effect of display panels to enhance the user experience.

[0003] Display panels have been widely used in various display fields. When preparing an existing liquid crystal display device, it usually includes a backlight module, a display panel, a driver circuit board, a functional film layer and connecting wiring. During assembly, the display panel is usually arranged on the light-emitting side of the backlight module and fixed to the backlight module. When the liquid crystal display device works normally, the backlight module can provide backlight for the panel, thereby ensuring the normal luminous display of the device. The backlight module usually includes an iron frame and a plurality of backlight components, some of which are located inside the iron frame. In the prior art, for a display device that does not fold back, when making a fixed connection, it is necessary to fix it with a tongue of the metal iron frame of the backlight module by screws and tape. On the one hand, the tongue can support and fix the driver circuit board, and on the other hand, it can also realize the transmission of static electricity through the tongue to avoid static electricity abnormalities inside the panel. However, with the demand for the use of ultra-thin display modules, the studs in the screw locking device are too high and the installation is not firm, which can no longer meet the demand. In addition, during use, when bonding with conductive adhesive, as the conductive adhesive denatures, its conductivity will deteriorate, which will lead to an increase in the impedance between the driver circuit board and the backlight module, which is not conducive to the normal operation of the display panel.

[0004] In summary, when installing and fixing the display module inside the display device, the existing fixing method cannot meet the use requirements and is not conducive to further improving the comprehensive performance of the display device. Utility Model Content

[0005] The embodiment of the utility model provides a display module to improve the installation and fixing method of the display module in the prior art and effectively improve the stability and comprehensive performance of the display device.

[0006] In order to solve the above technical problems, a first aspect of an embodiment of the utility model provides a display module, including:

[0007] Display panel;

[0008] A backlight module, arranged on the back side of the display panel;

[0009] A driving circuit board, disposed on the backlight module and electrically connected to the display panel;

[0010] The backlight module at least comprises a back plate and an optical component located in the back plate, at least one side of the back plate is provided with a protruding tongue piece, and the driving circuit board is fixedly arranged on the tongue piece;

[0011] The tongue piece has at least one bending portion connected to the back plate, a recess is provided on the back side of the driving circuit board, and the bending portion is clamped in the recess of the driving circuit board.

[0012] According to an embodiment of the utility model, the bending portion at least includes a first connecting end and a second connecting end, and the first connecting end is arranged on a side close to the supporting side plate;

[0013] The first connection end is arranged along a first direction, the second connection end is arranged along a second direction, the second connection end is inserted into the recess, the first direction intersects with the second direction, and the first connection end is connected to the second connection end to form a first angle.

[0014] According to an embodiment of the utility model, the bending portion further includes a third connecting end, the third connecting end is arranged on a side of the first connecting end close to the supporting side plate, and is inclined toward the outer side of the supporting side plate;

[0015] The third connection end is connected to the first connection end and forms a second angle, and the angle value of the second angle is greater than the angle value of the first angle.

[0016] According to an embodiment of the present invention, the surface of the first connection end is arranged parallel to the supporting base plate, and the length of the first connection end is greater than or equal to the length of the second connection end.

[0017] According to an embodiment of the present utility model, the tongue piece further includes a clamping portion, the clamping portion is connected to the bending portion, and is folded relative to the edge of the bending portion to form a third angle.

[0018] According to an embodiment of the present invention, the engaging portion and part of the bending portion are both engaged in the recess.

[0019] According to an embodiment of the present invention, the bending portion is disposed in the recess, and the engaging portion protrudes from the recess and is disposed on a side surface of the driving circuit board away from the bottom of the back plate.

[0020] According to an embodiment of the present invention, the angle corresponding to the third angle is adjustable, and the third angle is smaller than the second angle.

[0021] According to an embodiment of the present invention, the driving circuit board further includes a conductive layer, and the conductive layer is at least partially exposed and disposed in the recess and is in electrical contact with the bent portion.

[0022] According to an embodiment of the present invention, the display module further includes a flexible circuit board, one end of the flexible circuit board is electrically connected to the display panel, and the other end of the flexible circuit board is electrically connected to the driving circuit board.

[0023] Beneficial effects of the embodiments of the utility model: Compared with the prior art, the embodiments of the utility model provide a display module. The display module includes a backlight module, a display panel, and a driver circuit board. Among them, the backplane module at least includes a backplane and a tongue piece arranged on at least one side of the backplane, the tongue piece includes at least a bending portion, and the driver circuit board includes a recess, and the bending portion is clamped in the recess. In the embodiment of the utility model, by directly providing a recess on the driver circuit board, during installation, the bending portion of the tongue piece is directly inserted into the recess, thereby fixing the driver circuit board, and can effectively improve the stability of the driver circuit board during use and the performance of the module. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] In order to more clearly illustrate the technical solutions in the embodiments or the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0025] Figure 1 A schematic diagram of the structure of a display module provided in an embodiment of the utility model;

[0026] Figure 2 A schematic diagram of the state of the display module provided in the embodiment of the utility model during use;

[0027] Figure 3 It is a structural schematic diagram of another display module provided in an embodiment of the utility model;

[0028] Figure 4 A schematic diagram of the film structure of another display module provided by an embodiment of the utility model;

[0029] Figure 5 for Figure 4 A schematic diagram of the display module when an external force is applied;

[0030] Figure 6 This is a structural diagram of yet another display module provided in an embodiment of the present utility model. DETAILED DESCRIPTION

[0031] In the following detailed description, only certain embodiments of the present invention are shown and described simply by way of illustration. As will be appreciated by those skilled in the art, the embodiments described herein may be modified in various ways without departing from the spirit or scope of the present invention.

[0032] In the drawings, the thickness of layers, films, panels, regions, etc. may be exaggerated for clarity and for better understanding and ease of description. It will be understood that when an element such as a layer, film, region, or substrate is referred to as being "on another element," it can be directly on the other element or intervening elements may also be present.

[0033] In addition, unless explicitly described to the contrary, the word "comprise" and its variations like "include" or "contain" will be understood to imply the inclusion of the discussed elements, but not necessarily the exclusion of other elements. Further, in the specification, the word "on..." refers to placement above or below an object part, and does not necessarily mean placement on the upper side of an object part based on the direction of gravity.

[0034] It will be understood that although the terms "first", "second", etc. may be used herein to describe various components, these components should not be limited by these terms. These components are only used to distinguish one component from another component.

[0035] As used herein, the singular forms "a", "an" and "the" are intended to include the plural forms as well, unless the context clearly indicates otherwise.

[0036] It will also be understood that the terms “comprises” and / or “comprising” as used herein specify the presence of stated features or components, but do not exclude the presence or addition of one or more other features or components.

[0037] It will be understood that when a layer, region or component is referred to as being “formed on” another layer, region or component, it may be directly or indirectly formed on the other layer, region or component. For example, intervening layers, regions or components may be present.

[0038] In the following examples, the x-axis, y-axis, and z-axis are not limited to the three axes of the rectangular coordinate system and can be interpreted in a broader sense. For example, the x-axis, y-axis, and z-axis can be perpendicular to each other, or can represent different directions that are not perpendicular to each other.

[0039] In the prior art, when setting up a display module, the driver circuit board in the display module is usually directly bonded to the back panel through conductive glue to fix the driver circuit board. However, during the use of the display module, if it is subjected to external lateral force, the driver circuit board will be displaced significantly, and then the flexible circuit board will be pulled, resulting in quality problems such as connection failure, which is not conducive to further improving the comprehensive performance of the module.

[0040] The utility model provides a display module in an embodiment, which effectively improves the stability of the display module by changing the connection structure of the driving circuit board in the display module, and avoids quality problems such as failure of the connection between the driving circuit board back plate and the like during use.

[0041] like Figure 1 As shown, Figure 1 1 is a schematic diagram of the structure of a display module provided in an embodiment of the utility model. In the embodiment of the utility model, the display module includes a display panel 101, a backlight module 02, a driving circuit board 106 and a protective layer 102. Among them, the backlight module 02 is arranged on the back side of the display panel 101, and the driving circuit board 106 is arranged on the backlight module 02 and is electrically connected to the display panel.

[0042] Furthermore, the backlight module 02 in the embodiment of the present application also includes at least a back plate 20 and an optical component 107 .

[0043] In the following embodiments, the display module is described by taking the display module in the liquid crystal display device as an example, and the display panel is a liquid crystal display panel. When the liquid crystal display device works normally, the light source in the backlight module in the display module provides light to ensure the operation of the device. Optionally, the backlight module provided in the utility model can also be applied to other devices, and any product with the same structure as the backlight module provided in this example is within the protection scope of the utility model, and will not be described here.

[0044] In an embodiment of the utility model, when setting the display module, the display module in the present application is described by taking a non-bending module as an example. The back plate 20 includes a accommodating cavity 109. When forming the accommodating cavity 109, the back plate 20 at least includes a supporting base plate 201 and a plurality of supporting side plates 104. The plurality of supporting side plates 104 are arranged at the edge position of the supporting base plate 201 and surround the supporting base plate 201. Optionally, supporting side plates 104 may be arranged at the edge position of at least three sides of the supporting base plate 201. In this way, the supporting base plate 201 and the supporting side plates 104 form the accommodating cavity 109. The supporting base plate 201 is equivalent to the bottom of the accommodating cavity 109, and the supporting side plates 104 are equivalent to the surrounding side walls of the accommodating cavity 109. This makes it convenient to continue to set other components in the accommodating cavity 109 and form the module structure provided by the utility model.

[0045] Furthermore, the size of each supporting side plate 104 can be set according to the specifications of different types of products to achieve a lightweight and thin design of the display module, which is not specifically limited here.

[0046] In the embodiment of the utility model, the optical component 107 is disposed in the accommodating cavity 109. For example, the optical component 107 may include components such as a light source, a light guide plate, and an anti-reflection layer. The light source emits light, which is diffused by the light guide plate and continues to propagate in other film layers, thereby providing a backlight source for the liquid crystal display device. The film layer structure of the optical component 107 may be set according to the structure of a conventional display module.

[0047] At the same time, the display panel 101 is disposed on a side of the optical component away from the supporting base plate 201 , and the display panel 101 is matched with the optical component 107 and other film layers to ensure normal display.

[0048] In the embodiment of the utility model, when the back plate 20 is set, the back plate 20 also includes a tongue piece 30 and a flexible circuit board 105. Among them, one end of the tongue piece 30 is connected to the supporting side plate 104 or the supporting bottom plate 201, and the other end of the tongue piece 30 extends toward the outside of the supporting side plate 104 and protrudes from the supporting side plate 104. And at least part of the tongue piece is set in a direction consistent with the light emitting direction of the backlight module. And the driving circuit board 106 is set on the tongue piece 30 and can be fixed on the tongue piece 30. In this way, the tongue piece 30 is fixedly connected to the supporting side plate 104, and the driving circuit board 106 is fixed by the tongue piece 30, thereby effectively avoiding the problem of shaking or large-angle displacement of the driving circuit board 106 during use.

[0049] Furthermore, one end of the flexible circuit board 105 is electrically set on the display panel, and the other end of the flexible circuit board 105 is electrically set on the driving circuit board 106. If the flexible circuit board 105 is electrically connected to one end of the driving circuit board 106 away from the supporting side plate 104, when the panel works normally, a control signal is provided to the display panel through the driving circuit board 106 and the flexible circuit board 105.

[0050] Furthermore, in the embodiment of the utility model, when the driving circuit board 106 is provided, a recess 40 is further provided on the driving circuit board 106. And the tongue piece 30 is connected to the driving circuit board through the recess 40, so that when displacement occurs during use, the recess 40 can effectively fix the driving circuit board and prevent it from lateral displacement and other problems, thereby ensuring the connection quality between different components.

[0051] In the embodiment of the utility model, the recess 40 can be set as a circular hole, a square hole or a hole of other cross-sectional shapes. As long as the structure that can match the tongue piece 30 is ensured, such as a positioning groove, a mounting groove and other structures, its function is equivalent to the recess 40 in the utility model. And the recess 40 can be set as a blind hole or a through hole structure, which is not specifically limited here. Figure 1 The structure in Figure 1 The concave portion 40 in the embodiment is set as a blind hole. When setting the blind hole, one end of the blind hole is set from the surface of the driver circuit board 106 close to the back plate 20, and the other end of the blind hole continues to etch in the thickness direction of the driver circuit board 106 to remove part of the material, and the etching depth is less than the thickness of the driver circuit board 106. In this way, a hole that does not penetrate is formed on the driver circuit board 106, thereby obtaining Figure 1 The blind hole structure in .

[0052] Specifically, when the tongue piece 30 provided in the embodiment of the utility model is provided, the tongue piece 30 includes at least one bending portion 31. The bending portion 31 is inserted into the recess 40, so as to fix the driving circuit board 106.

[0053] In the following embodiments, the bending portion 31 at least includes a first connection end 301 and a second connection end 302. The first connection end 301 is connected to the second connection end 302. When setting, the first connection end 301 can be set along the first direction X, and the second connection end 302 can be set along the second direction Y. In the present utility model, there is a certain angle between the first direction X and the second direction Y. Optionally, the angle between the first direction X and the second direction Y is 90°. Correspondingly, the first direction X is set as a horizontal direction, and the second direction Y is set as a vertical direction, that is, the first connection end 301 is horizontally set relative to the support base plate 201, and the second connection end 302 is vertically set relative to the support base plate 201.

[0054] At this time, the second connection end 302 is inserted into the recess 40 , thereby fixing the driving circuit board 106 .

[0055] During the configuration, the first connection end 301 is connected to the end of the second connection end 302 and forms a first angle α1. The length of the first connection end 301 may be greater than or equal to the length of the second connection end 302, thereby improving the supporting effect of the first connection end 301 on the driving circuit board 106 and realizing a lightweight design of the display module.

[0056] Furthermore, the bending portion 31 may further include a third connection end 303. The third connection end 303 is disposed on a side close to the supporting side plate 104 and is tilted relative to the supporting side plate 104. For example, the third connection end 303 is connected to the supporting side plate 104 or the supporting bottom plate 201 and is tilted toward the outside of the accommodating cavity 109.

[0057] Specifically, the third connection end 303 is connected to the first connection end 301, and when connected, the first connection end 301 is connected to the third connection end 303, and a second angle α2 is formed. In the embodiment of the utility model, in order to avoid the problem of mutual interference between the subsequent tongue-type driving circuit board 106 and other components, the second angle α2 is set to an obtuse angle, that is, α2>90°.

[0058] At the same time, when setting the first connecting end 301, the second connecting end 302 and the third connecting end 303, the first angle α1 is smaller than the second angle α2, thereby ensuring that the tongue 30 is away from the edge of the accommodating cavity 109 and has a sufficient distance from the supporting side panel 104 to avoid interference between different components.

[0059] Furthermore, in the embodiment of the utility model, when the display module is set, a conductive glue 103 is also included. Specifically, the conductive glue 103 is set on the surface of the first connection end 301, such as on the support surface formed by the first connection end 301, and the driving circuit board 106 is bonded and fixed to the tongue 30 through the conductive glue 103. Wherein, when the conductive glue 103 is set, a plurality of conductive particles can also be set on the conductive glue 103, and the conductive particles are used to increase the electrical transfer between the driving circuit board 106 and the back plate, so as to release the static electricity generated by the module during operation, so as to improve the stability of the module.

[0060] like Figure 2 As shown, Figure 2 The following is a schematic diagram of the state of the display module provided in the embodiment of the utility model during use. Figure 1 In the structure, during use, when the display module is subjected to external force, or the internal components are shaken, such as the driver circuit board 106 is tilted by force, at this time, due to the tilt of the driver circuit board 106, the flexible circuit board 105 will be driven and the flexible circuit board 105 will be pulled. During the pulling process, the second connection end 302 of the tongue is clamped in the recess 40, and the recess 40 can limit the driver circuit board in three different directions, thereby reducing the shaking angle and displacement of the driver circuit board 106, thereby avoiding the pulling and wrinkling problems of the flexible circuit board 105, and ensuring the flatness of the flexible circuit board 105.

[0061] Further, such as Figure 3 As shown, Figure 3 This is a schematic diagram of the structure of another display module provided in an embodiment of the present utility model, combined with Figure 1 In the structure of the utility model, in the embodiment of the present invention, when the bending portion 31 of the tongue 30 and the recess 40 on the driving circuit board 106 are arranged, relative Figure 1 The structure in Figure 3The recess 40 is set as a through hole, wherein when the recess 40 is set as a through hole, the through hole completely penetrates the driver circuit board 106 in the thickness direction. When setting, a hole can be directly punched from one side surface of the driver circuit board 106 to the other side surface, thereby forming a through hole. At the same time, in the embodiment of the present application, one or more recesses 40 can be set according to needs.

[0062] When setting the through hole, the size of the through hole can be set according to the requirements of different products. In order to ensure the flatness of the film layer, the end of the second connection end 302 can be located in the same plane as the upper surface of the driving circuit board 106, so as to avoid the second connection end 302 affecting the stability of the bonding of the flexible circuit board 105.

[0063] Further, the structures of other parts of the bending portion 31 can refer to Figure 1 In the embodiment of the utility model, by setting the concave portion 40 as a through hole, and the through hole and the second connecting end 302 have a longer contact length, the displacement of the driving circuit board is further limited. And the problem of wrinkles and deformation of the flexible circuit board is effectively prevented.

[0064] like Figure 4 As shown, Figure 4 A schematic diagram of the film structure of another display module provided by an embodiment of the present utility model. Figure 1-Figure 3 In the module structure, in the utility model, when the tongue piece 30 is provided, the tongue piece 30 further includes a clamping portion 304. The clamping portion 304 is connected to the bending portion 31, and the clamping portion 304 is folded relative to the edge of the bending portion and forms a third angle α3 with the second connecting end 302 of the bending portion 31.

[0065] In the embodiment of the utility model, when the driving circuit board 106 is fixed, in order to further improve its fixing effect, a clamping portion 304 is provided to provide its fixing effect.

[0066] Specifically, the locking portion 304 can be arranged in the recess 40, and at least part of the bending portion is inserted in the recess, such as the second connection end 302 of the part of the bending portion 31 is arranged in the recess 40, so that the second connection end 302 and the locking portion 304 cooperate with each other, thereby strengthening the fixing effect on the driving circuit board 106.

[0067] In the embodiment of the utility model, when the clamping portion 304 is provided, the clamping portion 304 can be folded to the left or to the right relative to the second connection end 302. The third angle α3 formed by the folding can increase the width of the two, so that when the clamping portion 304 is provided in the recess 40, the fixing effect between the tongue piece and the driving circuit board can be enhanced.

[0068] Furthermore, in order to improve the universality of the tongue piece, the size of the third angle α3 in the utility model can be adjusted. For example, when the aperture of the recess 40 is larger, the angle of the third angle α3 can be increased. When the aperture of the recess 40 is smaller, the angle of the third angle α3 can be reduced, thereby achieving the purpose of improving the performance of the tongue piece.

[0069] Furthermore, the third angle α3 is smaller than the second angle α2, so that the second connection end 302 and the engaging portion are as far away from the supporting side plate as possible, increasing the distance between the two in the first direction X, so as to avoid interference between different components.

[0070] In the embodiment of the utility model, in order to ensure the direct abutment effect between the locking portion 304 and the driving circuit board 106, when setting, the width of the locking portion 304 can be greater than the width of the second connecting end 302, so that when abutting with the recess 40, the two have a larger contact surface, which can better prevent the driving circuit board from being displaced and avoid the problem of wrinkles on the circuit board 105.

[0071] like Figure 5 As shown, Figure 5 for Figure 4 Schematic diagram of the display module in the case of an external force. When the driving circuit board 106 is tilted by the external force, the engaging portion 304 will generate a horizontal thrust F on the shaking driving circuit board 106, and the horizontal thrust F is along the first direction X. At this time, under the action of the horizontal thrust F, the flexible circuit board 105 thereon will be driven to move, and a pulling force F2 will be formed on the flexible circuit board 105. Since the horizontal thrust F is along the first direction X, the pulling force F2 will also be along the first direction X or an approximately horizontal direction. In this way, under the action of the horizontal pulling force F2, the wrinkled flexible circuit board 105 will be flattened again, thereby ensuring the flatness of the flexible circuit board 105 when the module is shaking or under stress. This can reduce the noise problem of the display module during the whole machine test.

[0072] Further, such as Figure 6 As shown, Figure 6 This is a structural diagram of another display module provided in an embodiment of the present utility model. Figure 1-Figure 5 In this case, when the engaging portion 304 of the tongue piece 30 is provided, the engaging portion 304 is provided on the driving circuit board 106 and engages with the driving circuit board 106. Thus, when the driving circuit board is displaced, the engaging portion 304 and the second connecting end 302 work together to prevent the flexible circuit board from wrinkling, thereby avoiding the problem of abnormal impedance increase during the test due to wrinkling of the flexible circuit board 105 during the whole machine test of the module, ensuring the flatness of the film layer of the flexible circuit board 105 and improving the test accuracy.

[0073] For further details, see Figure 1 The structure in Figure 2-Figure 6 In the embodiment of the utility model, when the display module is set, the display module further includes a conductive layer 66. The conductive layer 66 is at least partially set in the recess 40, and the conductive layer 66 is electrically connected to the ground line of the driving circuit board 106. When set, the conductive layer 66 can be a metal layer in the copper leakage area of ​​the driving circuit board 105.

[0074] Optionally, in an embodiment of the utility model, the conductive layer 66 may be disposed at the bottom of the recess 40 or on the inner wall of the recess 40 , so that when the driving circuit board 105 is installed and fixed with the tongue of the metal back plate, the tongue 30 is in electrical contact with the bending portion 31 .

[0075] In the embodiment of the utility model, the material of the conductive layer 66 is set to be a conductive metal material. For example, copper metal. Since the metal back plate is in direct contact with the copper sheet of the driving circuit board 105, the conductivity of the two is much higher than that of the conductive glue 103. In this way, even if the conductive glue 103 shakes and tears under the action of external force, the conductive layer 66 can still effectively ensure the electrical connection between the metal back plate and the tongue, thereby avoiding the problem of the conductive glue 103 tearing, resulting in a reduction in contact area and an increase in impedance. The accuracy of the test and the stability of the module performance during the whole machine test are guaranteed.

[0076] In the embodiment of the utility model, when the conductive layer 66 is provided, the area of ​​the conductive layer 66 can be set according to the requirements of the product, so as to ensure the electrical contact effect between the metal back plate and the tongue piece and prevent the stability of the impedance between the two.

[0077] Furthermore, in an embodiment of the utility model, a display device is also provided. When setting the display device, it includes the display module provided in the embodiment of the utility model. The components in the display module are arranged according to the structure in the utility model, thereby effectively ensuring the stability of the module during operation or testing and improving the comprehensive performance of the module.

[0078] Specifically, the display module and the corresponding display device can also be applied to any product or component with display or other functions, such as mobile phones, computers, electronic papers, monitors, wearable devices, etc., and the specific types are not specifically limited.

[0079] In summary, the display module provided by the embodiment of the utility model is introduced in detail above. The principle and implementation mode of the utility model are explained in this article by using specific examples. The description of the above embodiments is only used to help understand the technical solution and core idea of ​​the utility model. Although the utility model is disclosed as above in the preferred embodiments, the above preferred embodiments are not used to limit the utility model. Ordinary technicians in this field can make various changes and modifications without departing from the spirit and scope of the utility model. Therefore, the protection scope of the utility model is based on the scope defined by the claims.

Claims

1. A display module, characterized in that: include: Display panel; A backlight module, arranged on the back side of the display panel; A driving circuit board, disposed on the backlight module and electrically connected to the display panel; The backlight module at least comprises a back plate and an optical component located in the back plate, at least one side of the back plate is provided with a protruding tongue piece, and the driving circuit board is fixedly arranged on the tongue piece; The tongue piece has at least one bending portion connected to the back plate, a recess is provided on the back side of the driving circuit board, and the bending portion is clamped in the recess of the driving circuit board.

2. The display module according to claim 1, characterized in that: The bending portion at least includes a first connecting end and a second connecting end, the back plate further includes a supporting side plate, and the first connecting end is arranged on a side close to the supporting side plate; The first connection end is arranged along a first direction, the second connection end is arranged along a second direction, the second connection end is inserted into the recess, the first direction intersects with the second direction, and the first connection end is connected to the second connection end and forms a first angle.

3. The display module according to claim 2, characterized in that: The bending portion further includes a third connecting end, which is disposed on a side of the first connecting end close to the supporting side plate and is inclined toward the outer side of the supporting side plate; The third connection end is connected to the first connection end and forms a second angle, and the angle value of the second angle is greater than the angle value of the first angle.

4. The display module according to claim 2, characterized in that: The back panel includes at least one supporting bottom plate, a plurality of supporting side plates are arranged at the edge of the supporting bottom plate, the surface of the first connecting end is arranged parallel to the supporting bottom plate, and the length of the first connecting end is greater than or equal to the length of the second connecting end.

5. The display module according to claim 3, characterized in that: The tongue piece further includes a clamping portion, which is connected to the bending portion and is folded relative to the edge of the bending portion to form a third angle.

6. The display module according to claim 5, characterized in that: The clamping portion and part of the bending portion are both clamped in the recess.

7. The display module according to claim 5, characterized in that: The bending portion is arranged in the concave portion, and the clamping portion protrudes from the concave portion and is arranged on a side surface of the driving circuit board away from the bottom of the back plate.

8. The display module according to claim 5, characterized in that: The angle corresponding to the third angle is adjustable, and the third angle is smaller than the second angle.

9. The display module according to claim 1, characterized in that: The driving circuit board further comprises a conductive layer, wherein at least a part of the conductive layer is exposed in the concave portion and is in electrical contact with the bent portion.

10. The display module according to claim 1, characterized in that: The display module further includes a flexible circuit board, one end of which is electrically connected to the display panel, and the other end of which is electrically connected to the driving circuit board.

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