Backlight modules and electronic devices

Abstract

The present application provides a backlight module and an electronic device. The backlight module includes a back panel assembly, which includes a back panel and multiple groups of first mounting assemblies, which are arranged on the back panel, and the first mounting assembly includes a first positioning member and a first fixing member; the backlight module also includes multiple lamp board assemblies, and one lamp board assembly corresponds to one group of first mounting assemblies, and the lamp board assembly includes: a lamp board; multiple light-emitting elements, which are arranged on the surface of the lamp board facing away from the back panel; a second mounting assembly, which is arranged on the surface of the lamp board facing the back panel, and the second mounting assembly includes a second positioning member and a second fixing member, and the second positioning member is used to cooperate with the first positioning member to connect so that the second fixing member is aligned with the first fixing member, and the second fixing member is used to cooperate with the first fixing member to fix the lamp board on the back panel. There is no height difference between the multiple lamp boards in the backlight module provided by the present application, and the assembly efficiency is high.

Description

Technical Field

[0001] The present application relates to the technical field of display devices, and in particular to a backlight module and an electronic device. Background Art

[0002] With the development of display technology, the demand for large-scale displays is increasing. Large-scale displays can meet user viewing needs, but they require a high number of light-emitting components. Mini light-emitting diodes (mini LEDs) have advantages such as a wide color gamut, high brightness, high contrast, and vivid colors, making them suitable for large-scale displays. However, current process limitations make it difficult to directly manufacture large-scale mini LED light panels.

[0003] Typically, smaller light panels are spliced ​​together to create the desired large-sized target light panel, thereby obtaining a large-sized display screen. However, during the splicing process, it is easy for the light panels to be loosely connected or unevenly spaced, thus affecting the actual display effect. Summary of the Invention

[0004] In a first aspect, the present application provides a backlight module, comprising a backplane assembly, the backplane assembly comprising a backplane and a plurality of first mounting assemblies, the plurality of first mounting assemblies being disposed on the backplane, the first mounting assemblies comprising a first positioning member and a first fixing member; the backlight module further comprising a plurality of light board assemblies, wherein one light board assembly corresponds to one group of the first mounting assemblies, the light board assemblies comprising:

[0005] Light board;

[0006] A plurality of light-emitting elements, wherein the plurality of light-emitting elements are arranged on a surface of the light board facing away from the back board;

[0007] The second mounting component is arranged on the surface of the light panel facing the back panel, and the second mounting component includes a second positioning member and a second fixing member. The second positioning member is used to cooperate with the first positioning member to align the second fixing member with the first fixing member. The second fixing member is used to cooperate with the first fixing member to fix the light panel on the back panel.

[0008] Part of the first fixing member is arranged on a side of the back plate away from the light panel, and another part of the first fixing member passes through the back plate and is detachably connected to the second fixing member.

[0009] Wherein, a group of the first installation components includes a plurality of first positioning members arranged at intervals, a group of the second installation components includes a plurality of second positioning members arranged at intervals, and one second positioning member is cooperatively connected with one first positioning member;

[0010] Alternatively, a group of the first installation components includes a plurality of first fixing members arranged at intervals, a group of the second installation components includes a plurality of second fixing members arranged at intervals, and one second fixing member is cooperatively connected with one first fixing member.

[0011] Wherein, when a group of the first installation components includes a plurality of first positioning members arranged at intervals and the number of the first positioning members is greater than or equal to 3, the plurality of first positioning members are arranged in a non-linear distribution;

[0012] When a group of the first installation components includes a plurality of first fixing members arranged at intervals and the number of the first fixing members is greater than or equal to 3, the plurality of first fixing members are arranged in a non-linear distribution.

[0013] Wherein, the second fixing member includes:

[0014] a connecting portion, the connecting portion being configured to cooperate with the first fixing member to fix the light panel to the back panel; and

[0015] A flexible portion, one end of which is connected to the connecting portion, and the other end of which is connected to the light board. The flexible portion can be deformed in the arrangement direction of the plurality of light board assemblies.

[0016] Wherein, the second positioning member includes:

[0017] Fastening portion;

[0018] a rotating portion, one end of which is connected to the fastening portion, and the rotating portion is rotatable relative to the fastening portion; and

[0019] A positioning portion is provided on the rotating portion and can rotate along with the rotation of the rotating portion. The positioning portion is used to cooperate with the first positioning member to align the second fixing member with the first fixing member.

[0020] The positioning portion is slidably connected to the rotating portion, and the positioning portion can move relative to the rotating portion in a direction in which one end of the rotating portion connected to the fastening portion points to the other end of the rotating portion oppositely arranged.

[0021] Wherein, the second positioning member is magnetically connected to the first positioning member.

[0022] Wherein, the first positioning member is arranged on a surface of the back plate away from the light board.

[0023] The backlight module provided by the present application is connected by multiple groups of the second mounting components and multiple groups of the first mounting components, so that the multiple light panels are spliced ​​and installed on the back panel, so that the multiple light panels are firmly spliced, and there is no height difference between adjacent light panels, so that the multiple light panels are seamlessly spliced, thereby improving the display effect. In addition, the second positioning member and the first positioning member can preliminarily position the light panel on the back panel through the mating connection, so that the second fixing member and the first fixing member are quickly aligned, and the second fixing member and the first fixing member are matingly connected to fix the light panel on the back panel, so that the efficiency of splicing and installing the multiple light panels on the back panel is high, and it is conducive to automated splicing. Therefore, there is no height difference between the multiple light panels in the backlight module provided by the present application, and the assembly efficiency is high.

[0024] In a second aspect, the present application further provides an electronic device, which includes the backlight module as described in the first aspect.

[0025] The electronic device provided by the present application has no height difference between the multiple light panels in the backlight module, thereby achieving seamless splicing, thereby improving the display effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the following is a brief introduction to the drawings required for use in the implementation. Obviously, the drawings described below are some implementation methods of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without any creative work.

[0027] Figure 1 This is a schematic diagram of the stacked structure of the backlight module provided in the first embodiment of the present application.

[0028] Figure 2 for Figure 1 Schematic diagram of the structure of the central light board assembly.

[0029] Figure 3 for Figure 1 Schematic diagram of the structure of the backplane.

[0030] Figure 4 for Figure 2 Schematic diagram of the center light panel assembly from another perspective.

[0031] Figure 5 for Figure 3 Schematic diagram of the bottom view of the mid-back panel.

[0032] Figure 6 for Figure 3 Schematic diagram of the structure of the first fixing member.

[0033] Figure 7This is a schematic diagram of the stacked structure of the backlight module provided in the second embodiment of the present application.

[0034] Figure 8 for Figure 7 Schematic diagram of the center light panel assembly from another perspective.

[0035] Figure 9 for Figure 7 Schematic diagram of the bottom view of the mid-back panel.

[0036] Figure 10 This is a schematic diagram of the stacked structure of the backlight module provided in the third embodiment of the present application.

[0037] Figure 11 for Figure 10 Schematic diagram of the structure of the central light board assembly.

[0038] Figure 12 This is a schematic diagram of the stacked structure of the backlight module provided in the fourth embodiment of the present application.

[0039] Figure 13 for Figure 12 Schematic diagram of the structure of the central light board assembly.

[0040] Figure 14 for Figure 13 Schematic diagram of the position change trajectory of the second positioning member.

[0041] Figure 15 A schematic structural diagram of an electronic device provided in one embodiment of the present application.

[0042] Figure numbers: backlight module 1; back panel assembly 10; back panel 11; first mounting assembly 12; first positioning member 121; first fixing member 122; light board assembly 20; light board 21; light-emitting element 22; second mounting assembly 23; second positioning member 231; fastening portion 2311; rotating portion 2312; positioning portion 2313; second fixing member 232; connecting portion 2321; flexible portion 2322; electronic device 2. DETAILED DESCRIPTION

[0043] The following will be combined with the drawings in the embodiments of this application to clearly and completely describe the technical solutions in the embodiments of this application. Obviously, the embodiments described are only part of the embodiments of this application, not all of the embodiments. Based on the embodiments in this application, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of this application.

[0044] The terms "first," "second," and the like in the specification and claims of this application and the accompanying drawings are used to distinguish between different objects, not to describe a particular order. Furthermore, the terms "including," "having," and any variations thereof, are intended to cover non-exclusive inclusions. For example, a process, method, system, product, or apparatus comprising a series of steps or elements is not limited to the listed steps or elements but may optionally include steps or elements not listed, or may optionally include other steps or elements inherent to the process, method, product, or apparatus.

[0045] References herein to "embodiments" or "implementations" mean that a particular feature, structure, or characteristic described in connection with the embodiments or implementations may be included in at least one embodiment of the present application. The appearance of such phrases in various places in the specification does not necessarily refer to the same embodiment, nor do they constitute independent or alternative embodiments that are mutually exclusive of other embodiments. It is understood, both explicitly and implicitly, by those skilled in the art that the embodiments described herein may be combined with other embodiments.

[0046] This application provides a backlight module 1. Please refer to Figure 1 、 Figure 2 and Figure 3 , Figure 1 A schematic diagram of the stacked structure of the backlight module provided in the first embodiment of the present application; Figure 2 for Figure 1 Schematic diagram of the structure of the middle light board assembly; Figure 3 for Figure 1 Schematic diagram of the structure of the middle back panel. In this embodiment, the backlight module 1 includes a back panel 10. The back panel 10 includes a back panel 11 and multiple groups of first mounting components 12. The multiple groups of first mounting components 12 are arranged on the back panel 11. The first mounting component 12 includes a first positioning member 121 and a first fixing member 122. The backlight module 1 also includes multiple lamp board assemblies 20, and one lamp board assembly 20 is arranged corresponding to a group of first mounting components 12. The lamp board assembly 20 includes a lamp board 21, multiple light-emitting elements 22 and a second mounting component 23. The multiple light-emitting elements 22 are arranged on the surface of the lamp board 21 away from the back panel 11. The second mounting component 23 is arranged on the surface of the lamp board 21 facing the back panel 11. The second mounting component 23 includes a second positioning member 231 and a second fixing member 232. The second positioning member 231 is used to cooperate with the first positioning member 121 to align the second fixing member 232 with the first fixing member 122 . The second fixing member 232 is used to cooperate with the first fixing member 122 to fix the light board 21 on the back panel 11 .

[0047] In this embodiment, the backlight module 1 is applied to large-sized electronic devices that require spliced ​​light panels 21, such as large-sized household televisions, large wall-mounted display screens, and the like.

[0048] It should be noted that Figure 1 The backlight module 1 includes two light panels 21 for illustration. It can be understood that Figure 1 The number of the middle light boards 21 does not limit the number of light boards 21 in the backlight module 1. In the embodiment of the present application, the number of the light boards 21 can be arbitrary and is specifically set according to actual needs.

[0049] In this embodiment, the light-emitting element 22 may be, but is not limited to, a mini light-emitting diode (mini LED), a micro light-emitting diode (microLED), or an LED, etc. In the embodiment of the present application, the light-emitting element 22 is schematically illustrated as a mini LED.

[0050] In this embodiment, multiple light panels 21 are fixedly mounted on the back panel 11 by cooperating and connecting with multiple sets of second mounting assemblies 23 and multiple sets of first mounting assemblies 12, thereby enabling the multiple light panels 21 to be spliced ​​onto the back panel 11. Due to the cooperative connection between the second mounting assemblies 23 and the first mounting assemblies 12, the multiple light panels 21 are more firmly spliced ​​onto the back panel 11, avoiding the problem of uneven joints between adjacent light panels 21. This eliminates height differences between adjacent light panels 21, achieving a seamless splicing effect. The height difference between adjacent light panels 21 refers to the height difference in the stacking direction between the light panels 21 and the back panel 11.

[0051] Furthermore, in the process of splicing the multiple light panels 21 onto the back panel 11, the second positioning member 231 in the second mounting assembly 23 and the first positioning member 121 in the first mounting assembly 12 can first be mated and connected to achieve preliminary positioning of the light panel 21 on the back panel 11, so that the second fixing member 232 in the second mounting assembly 23 and the first fixing member 122 in the first mounting assembly 12 are quickly aligned, and then the second fixing member 232 is mated and connected to the first fixing member 122 to fix the light panel 21 onto the back panel 11. In this embodiment, the light panel 21 is mounted on the back panel 11 using a positioning and fixing method, so that the splicing of the multiple light panels 21 onto the back panel 11 is efficient and easy to automate.

[0052] Optionally, the back plate 11 includes a bottom plate and a peripheral side wall. The peripheral side wall is bent and connected to the periphery of the bottom plate. The bottom plate and the light board 21 are stacked, and the peripheral side wall is arranged on the outer periphery of the light board 21.

[0053] Optionally, the second positioning member 231 and the first positioning member 121 can achieve preliminary positioning of the light board 21 on the back panel 11 through, but not limited to, magnetic positioning, hole positioning, or mark positioning.

[0054] Optionally, the second fixing member 232 and the first fixing member 122 can be connected to each other by screws and nuts, snap connections, or bonding to achieve fixing of the light board 21 to the back panel 11, but is not limited to these methods.

[0055] In summary, the backlight module 1 provided by the present application is connected by multiple groups of the second mounting components 23 and multiple groups of the first mounting components 12, so that the multiple light panels 21 are spliced ​​and installed on the back panel 11, so that the multiple light panels 21 are firmly spliced, and there is no height difference between adjacent light panels 21, so that the multiple light panels 21 are seamlessly spliced, thereby improving the display effect. In addition, the second positioning member 231 and the first positioning member 121 can preliminarily position the light panel 21 on the back panel 11 through the matching connection, so that the second fixing member 232 and the first fixing member 122 are quickly aligned, and the second fixing member 232 and the first fixing member 122 are matched and connected to fix the light panel 21 on the back panel 11, so that the efficiency of splicing and installing the multiple light panels 21 on the back panel 11 is high, and it is conducive to automatic splicing. Therefore, there is no height difference between the multiple light panels 21 in the backlight module 1 provided by the present application, and the assembly efficiency is high.

[0056] Please refer to Figure 4 、 Figure 5 and Figure 6 , Figure 4 for Figure 2 Schematic diagram of the center light panel assembly from another perspective; Figure 5 for Figure 3 A bottom view of the mid-back panel; Figure 6 for Figure 3 In this embodiment, part of the first fixing member 122 is arranged on the side of the back panel 11 away from the light board 21, and the other part of the first fixing member 122 passes through the back panel 11 and is detachably connected to the second fixing member 232.

[0057] In this embodiment, the second fixing member 232 and the first fixing member 122 are connected in a manner of nuts and screws. The first fixing member 122 is a screw, and the second fixing member 232 is a nut. The second fixing member 232 is fixed to the surface of the light board 21 facing the back panel 11. The back panel 11 has a plurality of locking holes, and each of the locking holes is provided corresponding to a second fixing member 232 of the light board assembly 20. The first fixing member 122 passes through the back panel 11 from the side of the back panel 11 away from the light board 21 through the locking hole, so that the first fixing member 122 and the second fixing member 232 are detachably connected. Therefore, the light board 21 can be fixed to the back panel 11 by tightening the first fixing member 122 from the side of the back panel 11 away from the light board 21 (i.e., the outside of the back panel 11), or the light board 21 can be removed from the back panel 11 by loosening the first fixing member 122, thereby making the disassembly and assembly of the light board 21 efficient and convenient.

[0058] Please refer to Figure 1 and Figure 7 , Figure 7 A schematic diagram of the stacked structure of the backlight module provided in the second embodiment of the present application. In this embodiment, a set of the first mounting components 12 includes a plurality of first positioning members 121 spaced apart, a set of the second mounting components includes a plurality of second positioning members 231 spaced apart, and one second positioning member 231 is matingly connected to one first positioning member 121. Alternatively, a set of the first mounting components 12 includes a plurality of first fixing members 122 spaced apart, a set of the second mounting components 23 includes a plurality of second fixing members 232 spaced apart, and one second fixing member 232 is matingly connected to one first fixing member 122.

[0059] In the first embodiment (see Figure 1 ), a group of the first mounting components 12 includes a plurality of first positioning members 121 spaced apart, and a corresponding group of the second mounting components 23 includes a plurality of second positioning members 231 spaced apart, so that the mounting position of the lamp panel 21 on the back panel 11 is positioned more accurately and stably, thereby improving the stability of the splicing of the plurality of lamp panels 21 on the back panel 11.

[0060] In the second embodiment (see Figure 7 ), a group of the first mounting components 12 includes a plurality of first fixing members 122 arranged at intervals, and a corresponding group of the second mounting components 23 includes a plurality of second fixing members 232 arranged at intervals, so that the light board 21 and the back panel 11 have multiple connections, thereby improving the stability of the fixed connection between the light board 21 and the back panel 11.

[0061] In other embodiments, a group of the first mounting components 12 includes a plurality of first positioning members 121 disposed at intervals, a group of the second mounting components includes a plurality of second positioning members 231 disposed at intervals, and one second positioning member 231 is cooperatively connected to one first positioning member 121. Furthermore, a group of the first mounting components 12 includes a plurality of first fixing members 122 disposed at intervals, a group of the second mounting components 23 includes a plurality of second fixing members 232 disposed at intervals, and one second fixing member 232 is cooperatively connected to one first fixing member 122.

[0062] Please refer to Figure 4 、 Figure 5 、 Figure 8 and Figure 9 , Figure 8 for Figure 7 Schematic diagram of the center light panel assembly from another perspective; Figure 9 for Figure 7 Schematic bottom view of the mid-back panel. In this embodiment, when a set of first mounting assemblies 12 includes multiple first positioning members 121 spaced apart, and the number of first positioning members 121 is greater than or equal to 3, the multiple first positioning members 121 are arranged in a nonlinear distribution. When a set of first mounting assemblies 12 includes multiple first fixing members 122 spaced apart, and the number of first fixing members 122 is greater than or equal to 3, the multiple first fixing members 122 are arranged in a nonlinear distribution.

[0063] In the first embodiment (see Figure 4 and Figure 5 ), when the number of the first positioning members 121 is greater than or equal to 3, the multiple first positioning members 121 are arranged in a nonlinear distribution, thereby further improving the positioning accuracy of the light board 21 on the back panel 11.

[0064] In the second embodiment (see Figure 8 and Figure 9 ), when the number of the first fixing members 122 is greater than or equal to 3, the multiple first fixing members 122 are arranged in a nonlinear distribution, thereby further improving the stability of the connection between the lamp board 21 and the back panel 11.

[0065] Please refer to Figure 10 and Figure 11 , Figure 10 A schematic diagram of the stacked structure of a backlight module provided in the third embodiment of the present application; Figure 11 for Figure 10Schematic diagram of the structure of the middle light panel assembly. In this embodiment, the second fixing member 232 includes a connecting portion 2321 and a flexible portion 2322. The connecting portion 2321 is used to cooperate with the first fixing member 122 to secure the light panel 21 to the back panel 11. One end of the flexible portion 2322 is connected to the connecting portion 2321. The other end of the flexible portion 2322 is connected to the light panel 21. The flexible portion 2322 is deformable in the arrangement direction of the multiple light panel assemblies 20.

[0066] In this embodiment, the light board 21 is a printed circuit board (PCB). Since the light board assembly 20 generates heat during operation, the light board 21 expands due to the heat. Since the flexible portion 2322 can deform in the arrangement direction of the multiple light board assemblies 20, when two adjacent light boards 21 are significantly squeezed due to thermal expansion, the two light boards 21 drive the flexible portion to deform, causing the two light boards 21 to move relative to the connecting portion 2321. This in turn causes the two squeezed light boards 21 to move relative to each other in directions away from each other, reducing the squeezing force between the two squeezed light boards 21 and preventing the light-emitting elements 22 from being damaged by excessive pressure on the two light boards 21. When the first positioning member 121 and the second positioning member 231 are mated and connected, the second positioning member 231 can move relative to the back panel 11 along with the light boards 21 in the arrangement direction of the multiple light board assemblies 20. For example, the first positioning member 121 and the second positioning member 231 are connected to each other by magnetic attraction.

[0067] Optionally, the flexible portion 2322 may be made of, but not limited to, a flexible material or an elastic metal, as long as the flexible portion 2322 can be deformed in the arrangement direction of the plurality of light panel assemblies 20 .

[0068] Please refer to Figure 12 、 Figure 13 and Figure 14 , Figure 12 A schematic diagram of the stacked structure of a backlight module provided in a fourth embodiment of the present application; Figure 13 for Figure 12 Schematic diagram of the structure of the middle light board assembly; Figure 14 for Figure 13Schematic diagram of the position change trajectory of the second positioning member. In this embodiment, the second positioning member 231 includes a fastening portion 2311, a rotating portion 2312, and a positioning portion 2313. One end of the rotating portion 2312 is connected to the fastening portion 2311, and the rotating portion 2312 can rotate relative to the fastening portion 2311. The positioning portion 2313 is provided on the rotating portion 2312, and the positioning portion 2313 can rotate as the rotating portion 2312 rotates. The positioning portion 2313 is used to cooperate with the first positioning member 121 to align the second fixing member 232 with the first fixing member 122.

[0069] In this embodiment, the second positioning member 231 has a fixed state and an adjustable state. The second positioning member 231 can be fixed by tightening the fastening portion 2311, and can be adjusted by loosening the fastening portion 2311. When the second positioning member 231 is in the adjustable state, the rotating portion 2312 can drive the positioning portion 2313 to rotate around the fastening portion 2311. The rotation trajectory is shown in FIG. Figure 14 As shown by the dotted circular line in the figure, the position of the positioning portion 2313 is adjusted. When the second positioning member 231 is in the fixed state, the fastening portion 2311 fixes the rotating portion 2312, and the rotating portion 2312 is fixed. At this time, the fixing portion can be connected with the first positioning member 121.

[0070] Different types of lamp boards 21 require different avoidance of components on the lamp boards 21. In this embodiment, the position of the positioning portion 2313 can be adjusted so that different types of lamp boards 21 can adjust the positioning portion 2313 so that the position of the positioning portion 2313 relative to the back panel 11 remains unchanged, thereby making it unnecessary for the back panel 11 to be redesigned, molded, verified, and prepared for different types of lamp boards 21, thereby improving the versatility of the back panel 11 and reducing the design cost.

[0071] Furthermore, the positioning portion 2313 is slidably connected to the rotating portion 2312. In the direction in which one end of the rotating portion 2312 connected to the fastening portion 2311 points to the other end of the rotating portion 2312 oppositely disposed (i.e. Figure 14 The positioning portion 2313 can move relative to the rotating portion 2312. In other words, the positioning portion 2313 can be located at Figure 14 Any position within the circular dotted line range except the fastening portion 2311 further improves the flexibility of the second positioning member 231, thereby further improving the versatility of the back plate 11.

[0072] Optionally, the positioning portion 2313 and the rotating portion 2312 may be, but are not limited to, a sliding groove connection, a slide rail connection, or a rolling connection.

[0073] Please refer again Figure 1 In this embodiment, the second positioning member 231 is magnetically connected to the first positioning member 121.

[0074] In this embodiment, the second positioning member 231 is connected to the first positioning member 121 by magnetic attraction, so that the second positioning member 231 can be guided in position by magnetic attraction. In other words, when the second positioning member 231 does not contact the first positioning member 121, the second positioning member 231 and the first positioning member 121 can attract each other within a certain distance, thereby guiding the installation of the light board 21 on the back panel 11. In addition, the second positioning member 231 and the first positioning member 121 can also improve the alignment accuracy through magnetic attraction. Even if the position of the light board 21 is slightly deviated during initial installation, the first positioning member 121 can attract the second positioning member 231 to the correct position through magnetic attraction, thereby achieving a positioning correction effect.

[0075] Optionally, the first positioning member 121 is a magnet or a magnetic conductor, and the second positioning member 231 is a magnet or a magnetic conductor.

[0076] Furthermore, the first positioning member 121 is arranged on the surface of the back panel 11 facing away from the light board 21, so that when the light board 21 is disassembled, after the connection between the second fixing member 232 and the first fixing member 122 is released, the first positioning member 121 can be removed on the side of the back panel 11 facing away from the light board 21 (i.e., the outside of the back panel 11), so that the second positioning member 231 loses its magnetic attraction, thereby allowing the light board 21 to be quickly disassembled.

[0077] This application also provides an electronic device 2. Figure 1 and Figure 15 , Figure 15 This is a schematic structural diagram of an electronic device provided in one embodiment of the present application. In this embodiment, the electronic device 2 includes the backlight module 1 as described in any of the above embodiments.

[0078] In this embodiment, the electronic device 2 is a large-sized electronic device that requires a spliced ​​light panel 21, such as a large-sized household TV, a large wall-mounted display screen, etc.

[0079] In this embodiment, the electronic device 2 provided by the present application is seamlessly spliced ​​because there is no height difference between the multiple light panels 21 in the backlight module 1, thereby improving the display effect.

[0080] Optionally, the electronic device 2 further includes a middle frame, a display screen, a power supply and a back cover, one side of the middle frame is used to accommodate the backlight module 1 and the display screen, and the other side is used to accommodate the power supply, the power supply is electrically connected to the backlight module 1 and the display screen, and is used to supply power to the backlight module 1 and the display screen, and the back cover is cooperatively connected to the middle frame to seal the power supply. Alternatively, the electronic device 2 further includes a base frame, which is connected to the backlight module 1 and is used to support the backlight module 1. Alternatively, the electronic device 2 further includes a hook member, which is connected to the backlight module 1 and is used to hang the backlight module 1 on a fixed surface (such as a wall, a cabinet surface, etc.). Not limited to this, the electronic device 2 can also have other structures, which are not limited here.

[0081] Although the embodiments of the present application have been shown and described above, it can be understood that the above embodiments are exemplary and cannot be understood as limitations on the present application. Ordinary technicians in this field can change, modify, replace and modify the above embodiments within the scope of the present application, and these improvements and modifications are also considered to be within the scope of protection of the present application.

Claims

1. A backlight module, comprising a back panel assembly, characterized in that: The back panel assembly includes a back panel and multiple sets of first mounting assemblies, the multiple sets of first mounting assemblies are arranged on the back panel, and the first mounting assemblies include a first positioning member and a first fixing member; the backlight module also includes multiple lamp board assemblies, and one lamp board assembly is corresponding to a set of the first mounting assemblies, and the lamp board assembly includes: Light board; A plurality of light-emitting elements, wherein the plurality of light-emitting elements are arranged on a surface of the light board facing away from the back board; a second mounting assembly, the second mounting assembly being disposed on a surface of the light panel facing the back panel, the second mounting assembly comprising a second positioning member and a second fixing member, the second positioning member being configured to cooperate with the first positioning member to align the second fixing member with the first fixing member, and the second fixing member being configured to cooperate with the first fixing member to fix the light panel to the back panel; Wherein, the second positioning member includes: Fastening portion; a rotating portion, one end of which is connected to the fastening portion, and the rotating portion is rotatable relative to the fastening portion; and A positioning portion is provided on the rotating portion and can rotate along with the rotation of the rotating portion. The positioning portion is used to cooperate with the first positioning member to align the second fixing member with the first fixing member.

2. The backlight module according to claim 1, wherein: Part of the first fixing member is arranged on a side of the back plate away from the light board, and the other part of the first fixing member passes through the back plate and is detachably connected to the second fixing member.

3. The backlight module according to claim 1, wherein: A group of the first installation components includes a plurality of first positioning members arranged at intervals, and a group of the second installation components includes a plurality of second positioning members arranged at intervals, and one second positioning member is cooperatively connected with one first positioning member; Alternatively, a group of the first installation components includes a plurality of first fixing members arranged at intervals, a group of the second installation components includes a plurality of second fixing members arranged at intervals, and one second fixing member is cooperatively connected with one first fixing member.

4. The backlight module according to claim 3, wherein: When a set of the first installation components includes a plurality of first positioning members arranged at intervals and the number of the first positioning members is greater than or equal to 3, the plurality of first positioning members are arranged in a non-linear distribution; When a group of the first installation components includes a plurality of first fixing members arranged at intervals and the number of the first fixing members is greater than or equal to 3, the plurality of first fixing members are arranged in a non-linear distribution.

5. The backlight module according to claim 1, wherein: The second fixing member includes: a connecting portion, the connecting portion being configured to cooperate with the first fixing member to fix the light panel to the back panel; and A flexible portion, one end of which is connected to the connecting portion, and the other end of which is connected to the light board. The flexible portion can be deformed in the arrangement direction of the plurality of light board assemblies.

6. The backlight module according to claim 1, wherein: The positioning portion is slidably connected to the rotating portion. The positioning portion can move relative to the rotating portion in a direction in which one end of the rotating portion connected to the fastening portion points to the other end of the rotating portion oppositely disposed.

7. The backlight module according to any one of claims 1 to 6, wherein: The second positioning member is magnetically connected to the first positioning member.

8. The backlight module according to claim 7, wherein: The first positioning member is arranged on a surface of the back plate facing away from the light board.

9. An electronic device, characterized in that: The electronic device comprises the backlight module according to any one of claims 1 to 8.

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