CN116123471A

CN116123471A - Backlight module and electronic equipment

Info

Publication number: CN116123471A
Application number: CN202310118893.9A
Authority: CN
Inventors: 王正超; 吴立; 袁海江
Original assignee: HKC Co Ltd
Current assignee: HKC Co Ltd
Priority date: 2023-01-17
Filing date: 2023-01-17
Publication date: 2023-05-16

Abstract

The application provides a backlight module and electronic equipment. The backlight module comprises a back plate assembly, wherein the back plate assembly comprises a back plate and a plurality of groups of first installation assemblies, the plurality of groups of first installation assemblies are arranged on the back plate, and the first installation assemblies comprise first positioning pieces and first fixing pieces; the backlight module still includes a plurality of lamp plate subassemblies, and a lamp plate subassembly corresponds a set of first installation component setting, and the lamp plate subassembly includes: a lamp panel; the light-emitting elements are arranged on the surface of the lamp panel, which is away from the back plate; the second installation component sets up in the surface of lamp plate face backplate, and the second installation component includes second setting element and second mounting, and the second setting element is used for being connected with first setting element cooperation so that the second mounting aligns with first mounting, and the second mounting is used for being connected with first mounting cooperation in order to be fixed in the lamp plate on the backplate. The backlight module provided by the application has no height difference among a plurality of lamp panels and is high in assembly efficiency.

Description

Backlight module and electronic equipment

Technical Field

The application relates to the technical field of display equipment, in particular to a backlight module and electronic equipment.

Background

With the development of display technology, the demand for large-sized display screens is increasing. The large-size display screen can meet the watching requirement of users, but has high requirement on the number of the luminous elements. The mini Light-Emitting Diode (mini LED) has advantages of wide color gamut, high brightness, high contrast, vivid color, and the like, and therefore, can be applied to a large-sized display screen. However, limited by the current technology, it is difficult to directly manufacture a mini LED lamp panel with a large size.

Typically, a desired large-size target panel is obtained by stitching with a smaller panel, thereby obtaining a large-size display screen. However, in the process of splicing, phenomena of unstable splicing, uneven height and the like of the lamp panel easily occur, so that the actual display effect is affected.

Disclosure of Invention

In a first aspect, the present application provides a backlight module, including a back plate assembly, where the back plate assembly includes a back plate and a plurality of groups of first mounting assemblies, where the plurality of groups of first mounting assemblies are disposed on the back plate, and the first mounting assemblies include a first positioning member and a first fixing member; the backlight module further comprises a plurality of lamp panel assemblies, one lamp panel assembly corresponds to one group of first installation assemblies, and the lamp panel assemblies comprise:

a lamp panel;

the light-emitting elements are arranged on the surface, away from the backboard, of the lamp panel;

the second installation component, the second installation component set up in the lamp plate is towards the surface of backplate, the second installation component includes second setting element and second mounting, the second setting element be used for with first setting element cooperation is connected so that the second mounting with first mounting aligns, the second mounting be used for with first mounting cooperation is connected in order to with the lamp plate is fixed in on the backplate.

Wherein, the part of the first fixing piece is arranged at one side of the back plate, which is away from the lamp panel, and the other part of the first fixing piece penetrates through the back plate to be matched and detachably connected with the second fixing piece.

The first installation components comprise a plurality of first positioning pieces which are arranged at intervals, the second installation components comprise a plurality of second positioning pieces which are arranged at intervals, and one second positioning piece is connected with one first positioning piece in a matched mode;

or, a group of first installation components include a plurality of first mounting components that the interval set up, a group of second installation components include a plurality of second mounting components that the interval set up, and a second mounting component with a first mounting component cooperation is connected.

When a group of the first installation components comprises a plurality of first positioning pieces which are arranged at intervals and the number of the first positioning pieces is more than or equal to 3, the plurality of first positioning pieces are distributed in a nonlinear mode;

when a group of first installation components include a plurality of first mounting that the interval set up just the quantity of first mounting is greater than or equal to 3, a plurality of first mounting nonlinear distribution sets up.

Wherein, the second mounting includes:

the connecting part is used for being matched and connected with the first fixing piece to fix the lamp panel on the backboard; a kind of electronic device with high-pressure air-conditioning system

The flexible portion, the one end of flexible portion connect in connecting portion, the other end of flexible portion connect in the lamp plate on the direction of arranging of a plurality of lamp plate subassemblies, flexible portion can take place deformation.

Wherein, the second setting element includes:

a fastening part;

a rotating part, one end of which is connected to the fastening part, the rotating part being rotatable relative to the fastening part; a kind of electronic device with high-pressure air-conditioning system

The positioning part is arranged on the rotating part and can rotate along with the rotation of the rotating part, and the positioning part is used for being connected with the first positioning piece in a matched mode so that the second fixing piece is aligned with the first fixing piece.

The positioning part is in sliding connection with the rotating part, and the positioning part can move relative to the rotating part in the direction that one end of the rotating part connected with the fastening part points to the other end of the rotating part which is oppositely arranged.

The second positioning piece is magnetically connected with the first positioning piece.

The first positioning piece is arranged on the surface of the back plate, which is away from the lamp panel.

The backlight module that this application provided passes through the multiunit second installation component with the multiunit first installation component cooperation is connected, so that a plurality of the lamp plate concatenation install in on the backplate, thereby make a plurality of the lamp plate concatenation is firm, and does not have the difference in height between the adjacent lamp plate, so that a plurality of the seamless concatenation of lamp plate, and then improve the display effect. In addition, the second locating piece with first locating piece can be through the cooperation be connected will the lamp plate preliminary location extremely on the backplate, so that the second mounting with first mounting aligns fast, the second mounting with first mounting cooperation is connected in order to be fixed in the lamp plate on the backplate, thereby makes a plurality of the lamp plate concatenation install in efficient on the backplate, and is favorable to automatic concatenation. Therefore, the backlight module provided by the application has no height difference among the lamp panels and is high in assembly efficiency.

In a second aspect, the present application further provides an electronic device, where the electronic device includes the backlight module according to the first aspect.

The electronic equipment provided by the application has no height difference in the backlight module due to the fact that the plurality of lamp panels are spliced, so that seamless splicing is realized, and the display effect is improved.

Drawings

In order to more clearly illustrate the technical solutions of the examples of the present application, the drawings that are needed in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present application, and other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.

Fig. 1 is a schematic diagram of a stacked structure of a backlight module according to a first embodiment of the present disclosure.

Fig. 2 is a schematic structural diagram of the lamp panel assembly in fig. 1.

Fig. 3 is a schematic structural diagram of the back plate in fig. 1.

Fig. 4 is a schematic view of the lamp panel assembly of fig. 2 at another viewing angle.

Fig. 5 is a schematic bottom view of the back plate of fig. 3.

Fig. 6 is a schematic structural view of the first fixing member in fig. 3.

Fig. 7 is a schematic diagram of a stacked structure of a backlight module according to a second embodiment of the present disclosure.

Fig. 8 is a schematic view of the lamp panel assembly of fig. 7 at another viewing angle.

Fig. 9 is a schematic bottom view of the back plate of fig. 7.

Fig. 10 is a schematic diagram of a stacked structure of a backlight module according to a third embodiment of the present disclosure.

Fig. 11 is a schematic structural view of the lamp panel assembly in fig. 10.

Fig. 12 is a schematic diagram of a stacked structure of a backlight module according to a fourth embodiment of the present disclosure.

Fig. 13 is a schematic structural view of the lamp panel assembly of fig. 12.

Fig. 14 is a schematic view of a second positioning member position changing track in fig. 13.

Fig. 15 is a schematic structural diagram of an electronic device according to an embodiment of the present application.

Reference numerals: a backlight module 1; a back plate assembly 10; a back plate 11; a first mounting assembly 12; a first positioning member 121; a first fixing member 122; a lamp panel assembly 20; a lamp panel 21; a light emitting element 22; a second mounting assembly 23; a second positioning member 231; a fastening portion 2311; a rotation portion 2312; a positioning portion 2313; a second fixing member 232; a connection 2321; a flexible portion 2322; an electronic device 2.

Detailed Description

The following description of the embodiments of the present application will be made clearly and fully with reference to the accompanying drawings, in which it is evident that the embodiments described are only some, but not all, of the embodiments of the present application. All other embodiments, which can be made by one of ordinary skill in the art based on the embodiments herein without undue burden, are within the scope of the present application.

The terms first, second and the like in the description and in the claims of the present application and in the above-described figures, are used for distinguishing between different objects and not for describing a particular sequential order. Furthermore, the terms "comprise" and "have," as well as any variations thereof, are intended to cover a non-exclusive inclusion. For example, a process, method, system, article, or apparatus that comprises a list of steps or elements is not limited to only those listed steps or elements but may include other steps or elements not listed or inherent to such process, method, article, or apparatus.

Reference herein to "an embodiment" or "an implementation" means that a particular feature, structure, or characteristic described in connection with the embodiment or implementation may be included in at least one embodiment of the present application. The appearances of such phrases in various places in the specification are not necessarily all referring to the same embodiment, nor are separate or alternative embodiments mutually exclusive of other embodiments. Those of skill in the art will explicitly and implicitly appreciate that the embodiments described herein may be combined with other embodiments.

The application provides a backlight module 1. Referring to fig. 1, fig. 2 and fig. 3 together, fig. 1 is a schematic diagram of a stacked structure of a backlight module according to a first embodiment of the present disclosure; FIG. 2 is a schematic diagram of the lamp panel assembly of FIG. 1; fig. 3 is a schematic structural diagram of the back plate in fig. 1. In this embodiment, the backlight module 1 includes a back plate 10. The back plate 10 includes a back plate 11 and a plurality of sets of first mounting assemblies 12. The plurality of sets of first mounting assemblies 12 are disposed on the back plate 11. The first mounting assembly 12 includes a first positioning member 121 and a first fixing member 122. The backlight module 1 further includes a plurality of lamp panel assemblies 20, and one of the lamp panel assemblies 20 is disposed corresponding to one of the first mounting assemblies 12. The lamp panel assembly 20 includes a lamp panel 21, a plurality of light emitting elements 22, and a second mounting assembly 23. The light emitting elements 22 are disposed on a surface of the lamp panel 21 facing away from the back plate 11. The second mounting assembly 23 is disposed on a surface of the lamp panel 21 facing the back plate 11. The second mounting assembly 23 includes a second positioning member 231 and a second fixing member 232. The second positioning member 231 is configured to be cooperatively connected with the first positioning member 121 so that the second fixing member 232 is aligned with the first fixing member 122, and the second fixing member 232 is configured to be cooperatively connected with the first fixing member 122 so as to fix the lamp panel 21 on the back plate 11.

In this embodiment, the backlight module 1 is applied to a large-sized electronic device, such as a household large-sized television, a wall-mounted large-sized display screen, etc., which requires the lamp panel 21 to be spliced.

It should be noted that, in fig. 1, the backlight module 1 includes two lamp panels 21, and it is understood that the number of lamp panels 21 in fig. 1 is not limited to the number of lamp panels 21 in the backlight module 1. In this embodiment, the number of the lamp panels 21 may be arbitrary, and specifically set according to actual requirements.

In the present 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 (micro LED), or an LED. In the present embodiment, the light emitting element 22 is schematically described as a mini LED.

In this embodiment, the plurality of lamp panels 21 are cooperatively connected with the plurality of first mounting assemblies 12 through the plurality of second mounting assemblies 23, so as to be fixedly mounted on the back plate 11, so that the plurality of lamp panels 21 are spliced on the back plate 11. Because the second mounting assembly 23 is connected with the first mounting assembly 12 in a matching manner, the plurality of lamp panels 21 are firmly spliced on the back plate 11, so that the problem of splicing seams caused by uneven heights between adjacent lamp panels 21 can be avoided, no height difference between adjacent lamp panels 21 is realized, and a seamless splicing effect is obtained. The height difference between adjacent lamp panels 21 refers to a height difference in the stacking direction of the lamp panels 21 and the back plate 11.

Further, in the process of splicing the plurality of lamp panels 21 on the back plate 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 be in mating connection to achieve the preliminary positioning of the lamp panels 21 on the back plate 11, so that the second fixing member 232 in the second mounting assembly 23 is aligned with the first fixing member 122 in the first mounting assembly 12 quickly, and then the lamp panels 21 are fixedly mounted on the back plate 11 through the mating connection of the second fixing member 232 and the first fixing member 122. In this embodiment, the lamp panels 21 are installed on the back plate 11 by adopting a positioning and fixing manner, so that the efficiency of splicing the lamp panels 21 on the back plate 11 is high, and automation is easy.

Optionally, the back plate 11 includes a bottom plate and a peripheral side wall. The peripheral side wall is connected to the periphery of the bottom plate in a bending way. The bottom plate and the lamp panel 21 are stacked, and the peripheral side wall is provided on the outer peripheral side of the lamp panel 21.

Alternatively, the second positioning member 231 and the first positioning member 121 may be, but not limited to, magnetic positioning, hole slot positioning, or mark positioning, etc. to achieve the preliminary positioning of the lamp panel 21 on the back plate 11.

Alternatively, the second fixing member 232 and the first fixing member 122 may be, but not limited to, a screw-nut connection, a snap-fit connection, or an adhesive, so as to fix the lamp panel 21 to the back plate 11.

To sum up, the backlight module 1 provided by the application is connected with the first installation component 12 in a matching manner through the second installation component 23 and the first installation component, so that the lamp panels 21 are spliced and installed on the back plate 11, the lamp panels 21 are spliced firmly, no height difference exists between the adjacent lamp panels 21, the lamp panels 21 are spliced seamlessly, and the display effect is improved. In addition, the second positioning member 231 and the first positioning member 121 can be connected to preliminarily position the lamp panel 21 on the back plate 11, so that the second fixing member 232 and the first fixing member 122 are aligned fast, and the second fixing member 232 is connected to the first fixing member 122 in a matched manner to fix the lamp panel 21 on the back plate 11, so that the efficiency of splicing and installing a plurality of lamp panels 21 on the back plate 11 is high, and automatic splicing is facilitated. Therefore, the backlight module 1 provided by the application has no height difference among the lamp panels 21 and high assembly efficiency.

Referring to fig. 4, 5 and 6, fig. 4 is a schematic view of the lamp panel assembly of fig. 2 at another viewing angle; FIG. 5 is a schematic bottom view of the back plate of FIG. 3; fig. 6 is a schematic structural view of the first fixing member in fig. 3. In this embodiment, a portion of the first fixing member 122 is disposed on a side of the back plate 11 facing away from the lamp panel 21, and another portion of the first fixing member 122 penetrates through the back plate 11 to be detachably connected with the second fixing member 232 in a matching manner.

In the present embodiment, the second fixing member 232 and the first fixing member 122 are illustrated as being coupled to each other by a nut screw. Wherein, 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 a surface of the lamp panel 21 facing the back plate 11. The back plate 11 has a plurality of locking holes, and each locking hole is disposed corresponding to the second fixing member 232 of one of the lamp panel assemblies 20. The first fixing member 122 penetrates through the back plate 11 from the side of the back plate 11 facing away from the lamp panel 21 via the locking hole, so that the first fixing member 122 is detachably connected with the second fixing member 232. Therefore, the side of the back plate 11 away from the lamp panel 21 (i.e., the outer side of the back plate 11) can be fastened to the back plate 11 by screwing the first fastening member 122, or the lamp panel 21 can be detached from the back plate 11 by unscrewing the first fastening member 122, so that the lamp panel 21 can be efficiently and conveniently assembled and disassembled.

Referring to fig. 1 and fig. 7, fig. 7 is a schematic diagram of a stacked structure of a backlight module according to a second embodiment of the present disclosure. In this embodiment, a set of the first mounting assemblies 12 includes a plurality of first positioning members 121 disposed at intervals, a set of the second mounting assemblies includes a plurality of second positioning members 231 disposed at intervals, and one of the second positioning members 231 is cooperatively connected with one of the first positioning members 121. Alternatively, one set of the first mounting assemblies 12 includes a plurality of first fixing members 122 disposed at intervals, and one set of the second mounting assemblies 23 includes a plurality of second fixing members 232 disposed at intervals, and one second fixing member 232 is cooperatively connected with one first fixing member 122.

In the first embodiment (please refer to fig. 1), a set of the first mounting assemblies 12 includes a plurality of first positioning members 121 disposed at intervals, and a corresponding set of the second mounting assemblies 23 includes a plurality of second positioning members 231 disposed at intervals, so that the mounting positions of the lamp panels 21 on the back plate 11 are positioned more precisely and stably, and the stability of splicing the lamp panels 21 on the back plate 11 is further improved.

In the second embodiment (refer to fig. 7), a set of the first mounting assemblies 12 includes a plurality of first fixing members 122 disposed at intervals, and a corresponding set of the second mounting assemblies 23 includes a plurality of second fixing members 232 disposed at intervals, so that the lamp panel 21 and the back plate 11 have multiple connections, thereby improving the stability of the fixed connection between the lamp panel 21 and the back plate 11.

In other embodiments, a set of the first mounting assemblies 12 includes a plurality of first positioning members 121 disposed at intervals, a set of the second mounting assemblies includes a plurality of second positioning members 231 disposed at intervals, and one of the second positioning members 231 is cooperatively connected with one of the first positioning members 121. Meanwhile, a set of the first mounting assemblies 12 includes a plurality of first fixing members 122 disposed at intervals, a set of the second mounting assemblies 23 includes a plurality of second fixing members 232 disposed at intervals, and one of the second fixing members 232 is cooperatively connected with one of the first fixing members 122.

Referring to fig. 4, fig. 5, fig. 8, and fig. 9, fig. 8 is a schematic view of the lamp panel assembly of fig. 7 at another view angle; fig. 9 is a schematic bottom view of the back plate of fig. 7. In this embodiment, when a group of the first mounting assemblies 12 includes a plurality of first positioning members 121 disposed at intervals and the number of the first positioning members 121 is greater than or equal to 3, the plurality of first positioning members 121 are disposed in a nonlinear distribution. When a set of the first mounting assemblies 12 includes a plurality of first fixing members 122 disposed at intervals and the number of the first fixing members 122 is greater than or equal to 3, the plurality of first fixing members 122 are disposed in a nonlinear distribution.

In the first embodiment (refer to fig. 4 and 5), when the number of the first positioning members 121 is greater than or equal to 3, the plurality of first positioning members 121 are distributed in a nonlinear manner, so as to further improve the positioning accuracy of the lamp panel 21 on the back plate 11.

In the second embodiment (refer to fig. 8 and 9), when the number of the first fixing members 122 is greater than or equal to 3, the plurality of first fixing members 122 are distributed in a nonlinear manner, so as to further improve the stability of the connection between the lamp panel 21 and the back plate 11.

Referring to fig. 10 and 11, fig. 10 is a schematic diagram of a laminated structure of a backlight module according to a third embodiment of the present disclosure; fig. 11 is a schematic structural view of the lamp panel assembly in fig. 10. In this embodiment, the second fixing member 232 includes a connection portion 2321 and a flexible portion 2322. The connection portion 2321 is configured to be cooperatively connected with the first fixing element 122 to fix the lamp panel 21 on the back plate 11. One end of the flexible portion 2322 is connected to the connection portion 2321. The other end of the flexible portion 2322 is connected to the lamp panel 21. The flexible portion 2322 may be deformed in an arrangement direction of the plurality of lamp panel assemblies 20.

In this embodiment, the lamp panel 21 is a printed circuit board (Printed Circuit Board, PCB), and the lamp panel assembly 20 generates heat during operation, thereby causing the lamp panel 21 to expand thermally. Because the flexible portion 2322 may deform in the arrangement direction of the plurality of lamp panel assemblies 20, when two adjacent lamp panels 21 are heated and expanded to generate larger extrusion, the two lamp panels 21 drive the flexible section to deform, so that the two lamp panels 21 displace relative to the connection portion 2321, and further the two lamp panels 21 mutually extruded generate relative displacement in the direction away from each other, so that extrusion force between the two lamp panels 21 mutually extruded is reduced, and damage to the light emitting element 22 due to overlarge pressure of the two lamp panels 21 is avoided. In the case where the first positioning member 121 and the second positioning member 231 are cooperatively connected, the second positioning member 231 may be displaced along with the lamp panel 21 relative to the back plate 11 in the arrangement direction of the plurality of lamp panel assemblies 20. For example, the first positioning member 121 and the second positioning member 231 are cooperatively connected by magnetic attraction.

Alternatively, the flexible portion 2322 may be, but not limited to, a flexible material, an elastic metal, or the like, as long as the flexible portion 2322 is capable of being deformed in the arrangement direction of the plurality of lamp panel assemblies 20.

Referring to fig. 12, 13 and 14, fig. 12 is a schematic diagram of a laminated structure of a backlight module according to a fourth embodiment of the present disclosure; FIG. 13 is a schematic view of the lamp panel assembly of FIG. 12; fig. 14 is a schematic view of a second positioning member position changing track in fig. 13. In the present embodiment, the second positioning member 231 includes a fastening portion 2311, a rotating portion 2312, and a positioning portion 2313. One end of the rotation portion 2312 is connected to the fastening portion 2311, and the rotation portion 2312 is rotatable with respect to the fastening portion 2311. The positioning portion 2313 is disposed at the rotation portion 2312, and the positioning portion 2313 may be rotated according to the rotation of the rotation portion 2312. The positioning portion 2313 is used for being cooperatively connected with the first positioning member 121 so as to align the second fixing member 232 with the first fixing member 122.

In the present embodiment, the second positioning member 231 has a fixed state and an adjusted state, the second positioning member 231 is fixed by tightening the fastening portion 2311, and the second positioning member 231 is adjusted by loosening the fastening portion 2311. When the second positioning member 231 is in the adjustment state, the rotating portion 2312 may drive the positioning portion 2313 to rotate around the fastening portion 2311, and the rotating track is shown by a circular dotted line in fig. 14, so as to adjust the position of the positioning portion 2313. 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, and at this time, the fixing portion may be cooperatively connected with the first positioning member 121.

Different types of lamp panels 21 need dodge the components and parts on the lamp panels 21 differently, in this embodiment the position of the positioning portion 2313 can be adjusted, so that different types of lamp panels 21 can pass through the adjustment of the positioning portion 2313 to make the position of the positioning portion 2313 relative to the back plate 11 unchanged, so that the back plate 11 does not need redesign, mold opening, verification, material preparation and the like for different types of lamp panels 21, and therefore universality of the back plate 11 is improved, and design cost is reduced.

Further, the positioning portion 2313 is slidably connected to the rotating portion 2312. The positioning portion 2313 is movable with respect to the rotating portion 2312 in a direction in which one end of the rotating portion 2312 connected to the fastening portion 2311 is directed to the other end of the rotating portion 2312 disposed opposite to the other end (i.e., a locus of a broken straight line in fig. 14). In other words, the positioning portion 2313 may be located at any position within the range of the circular dotted line of fig. 14 other than the fastening portion 2311, further improving flexibility of the second positioning member 231, thereby further improving versatility of the back plate 11.

Alternatively, the positioning portion 2313 and the rotating portion 2312 may be, but not limited to, a sliding connection, a rolling connection, or the like.

Referring to fig. 1 again, in the present embodiment, the second positioning member 231 is magnetically connected to the first positioning member 121.

In this embodiment, the second positioning member 231 is magnetically connected to the first positioning member 121, so that the second positioning member 231 can be positioned 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 lamp panel 21 to be mounted on the back plate 11. In addition, the second positioning member 231 and the first positioning member 121 can further improve alignment accuracy by magnetic attraction, even if the position of the lamp panel 21 is slightly deviated during preliminary installation, the first positioning member 121 can adsorb the second positioning member 231 to an accurate position by magnetic attraction, thereby playing a role in positioning correction.

Optionally, the first positioning member 121 is a magnet or a magnetizer, and the second positioning member 231 is a magnet or a magnetizer.

Further, the first positioning member 121 is disposed on the surface of the back plate 11 facing away from the lamp panel 21, so that when the lamp panel 21 is detached, after the connection between the second fixing member 232 and the first fixing member 122 is released, the first positioning member 121 can be detached on the side of the back plate 11 facing away from the lamp panel 21 (i.e. the outer side of the back plate 11), so that the second positioning member 231 loses magnetic attraction, and the lamp panel 21 can be quickly detached.

The present application also provides an electronic device 2. Referring to fig. 1 and 15, fig. 15 is a schematic structural diagram of an electronic device according to an embodiment of the present application. In this embodiment, the electronic device 2 includes the backlight module 1 according to any one of the foregoing embodiments.

In this embodiment, the electronic device 2 is a large-sized electronic device, such as a household large-sized television, a wall-mounted large-sized display screen, etc., which requires the lamp panel 21 to be spliced.

In this embodiment, the electronic device 2 provided in this application has no height difference due to the splicing between the plurality of lamp panels 21 in the backlight module 1, thereby realizing seamless splicing and further improving the display effect.

Optionally, the electronic device 2 further includes a middle frame, a display screen, a power supply, and a rear cover, where one side of the middle frame is used to accommodate the backlight module 1 and the display screen, the other side of the middle frame 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 rear cover is connected with the middle frame in a matching manner to seal the power supply. Or, the electronic device 2 further includes a base frame, where the base frame is connected to the backlight module 1 and is used to support the backlight module 1. Or, the electronic device 2 further includes a hook member, where the hook is connected to the backlight module 1, and is used to attach the backlight module 1 to a fixed surface (such as a wall surface, a counter surface, etc.). Without limitation, the electronic device 2 may have other structures, and is not limited herein.

While embodiments of the present application have been shown and described above, it will be understood that the above embodiments are illustrative and not to be construed as limiting the present application, and that variations, modifications, alternatives and alterations of the above embodiments may be made by those skilled in the art within the scope of the present application, which are also to be regarded as being within the scope of the protection of the present application.

Claims

1. The backlight module comprises a back plate assembly and is characterized in that the back plate assembly comprises a back plate and a plurality of groups of first installation assemblies, the plurality of groups of first installation assemblies are arranged on the back plate, and the first installation assemblies comprise first positioning pieces and first fixing pieces; the backlight module further comprises a plurality of lamp panel assemblies, one lamp panel assembly corresponds to one group of first installation assemblies, and the lamp panel assemblies comprise:

a lamp panel;

2. The backlight module according to claim 1, wherein a portion of the first fixing member is disposed on a side of the back plate facing away from the lamp panel, and another portion of the first fixing member penetrates through the back plate to be detachably connected with the second fixing member in a matching manner.

3. The backlight module according to claim 1, wherein a set of the first mounting assemblies includes a plurality of first positioning members disposed at intervals, a set of the second mounting assemblies includes a plurality of second positioning members disposed at intervals, and one of the second positioning members is cooperatively connected with one of the first positioning members;

4. A backlight module according to claim 3, wherein when a group of the first mounting assemblies 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 nonlinear distribution manner;

5. The backlight module according to claim 1, wherein the second fixing member comprises:

6. The backlight module according to claim 1, wherein the second positioning member comprises:

a fastening part;

7. A backlight module according to claim 6, wherein the positioning portion is slidably connected to the rotating portion, and the positioning portion is movable relative to the rotating portion in a direction in which one end of the rotating portion connected to the fastening portion is directed toward the other end of the rotating portion opposite to the rotating portion.

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

9. The backlight module according to claim 8, wherein the first positioning member is disposed on a surface of the back plate facing away from the lamp panel.

10. An electronic device, characterized in that the electronic device comprises a backlight module according to any one of claims 1-9.