Backlight module and display equipment

Abstract

The utility model discloses a backlight module and display equipment, the backlight module comprises a lamp panel and a mounting frame, the mounting frame is arranged around the outer periphery of the lamp panel, and multiple side edges in the circumferential direction of the lamp panel are welded and fixed to the mounting frame. According to the display device, the lamp panel is directly welded and fixed to the mounting frame, so that the mounting frame can be directly connected and fixed to the shell of the display device or serve as a part of the shell of the display device, the screw locking operation of the lamp panel and the back panel and the screw locking operation of the back panel and the middle frame are omitted, and the lamp panel is convenient to assemble.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of display, in particular to a backlight module and a display device. BACKGROUND

[0002] As one of important components of a display device, a backlight module is mainly used for emitting light to light a liquid crystal module of the display device.

[0003] In the related art, a backlight module includes a lamp plate, a back plate and a middle frame. The lamp plate is fixed on the back plate by screwing, the back plate is fixed with the middle frame by screwing, and finally the middle frame is fixed to a rear shell of the display device by screwing to complete the installation of the backlight module. The screwing fixing mode causes the assembly steps of the lamp plate to be relatively cumbersome. UTILITY MODEL CONTENT

[0004] Embodiments of the present application provide a backlight module and a display device to facilitate the assembly of a lamp plate.

[0005] In a first aspect, embodiments of the present application provide a backlight module, comprising:

[0006] a lamp plate; and

[0007] a mounting frame, the mounting frame is arranged around the outer periphery of the lamp plate, and a plurality of side edges on the circumference of the lamp plate are fixed with the mounting frame by welding.

[0008] In some embodiments, the lamp plate includes a substrate and lamp beads arranged on the substrate, the mounting frame and the substrate are fixed by welding, and the material of the mounting frame is the same as the material of the substrate; and / or,

[0009] The mounting frame is made of aluminum, aluminum alloy, iron or iron alloy.

[0010] In some embodiments, the edges of the lamp plate include:

[0011] two long sides, the long sides are arranged along the length direction of the lamp plate, and at least one of the long sides is fixed with the mounting frame by welding; and

[0012] two short sides, the short sides are arranged along the width direction of the lamp plate, and at least one of the short sides is fixed with the mounting frame by welding.

[0013] In some embodiments, the lamp plate has a plurality of welding points, the welding points are fixed with the mounting frame by welding;

[0014] wherein the long sides and the short sides are both provided with the welding points, and the number of the welding points on the long sides is greater than the number of the welding points arranged on the short sides.

[0015] In some embodiments, the lamp panel has a plurality of groups of welding points, and the welding points are welded and fixed with the mounting frame;

[0016] In some embodiments, each group of the welding points includes at least two welding points, and the distance between two adjacent groups of the welding points is greater than the distance between two adjacent welding points in the same group.

[0017] In some embodiments, the mounting frame includes:

[0018] a first frame body including a first side frame, a second side frame and a third side frame connected in sequence by bending; and

[0019] a second frame body welded and fixed at one end with the first side frame away from the second side frame, and welded and fixed at the other end with the third side frame away from the second side frame, the second frame body, the first side frame, the second side frame and the third side frame forming an annular frame body, and the annular frame body being sleeved on the outer periphery of the lamp panel.

[0020] In some embodiments, the mounting frame is provided with a first mounting groove, and the edge of the lamp panel is inserted into the first mounting groove.

[0021] In some embodiments, the mounting frame has a first surface, a second surface and a third surface connected in sequence, the first surface faces the outer periphery of the mounting frame, the third surface faces the inner periphery of the mounting frame and forms part of the groove opening end surface of the first mounting groove, and the mounting frame is welded and fixed with the lamp panel from at least one of the second surface and the third surface.

[0022] In some embodiments, when the mounting frame is welded and fixed with the second surface and the lamp panel, the thickness of the inner surface of the first mounting groove to the second surface is greater than or equal to 0.7 mm and less than or equal to 1.3 mm.

[0023] In some embodiments, the mounting frame is further provided with a second mounting groove, and the groove opening of the second mounting groove faces the inner periphery of the mounting frame.

[0024] The backlight module further includes an optical film, and the edge of the optical film is inserted into the second mounting groove.

[0025] In a second aspect, the embodiments of the present application further provide a display device, including:

[0026] a housing;

[0027] a backlight module as any one of the above, the backlight module being installed in the housing; and

[0028] A liquid crystal module is arranged on the light emitting side of the backlight module.

[0029] In some embodiments, the housing comprises:

[0030] A front frame is at least partially mounted on the light emitting side of the backlight module, and the liquid crystal module is at least partially arranged between the light emitting side of the backlight module and the front frame.

[0031] A rear housing is connected with the front frame, and the rear housing and the front frame enclose a mounting cavity for accommodating the backlight module.

[0032] The present application has the following advantages:

[0033] In the present application, the lamp plate is directly welded and fixed on the mounting frame, and the mounting frame can be directly connected and fixed with the housing of the display device or serve as part of the housing of the display device, so that the screwing operation of the lamp plate and the back plate and the screwing operation of the back plate and the middle frame are omitted, thereby facilitating the assembly of the lamp plate. BRIEF DESCRIPTION OF DRAWINGS

[0034] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the following will briefly introduce the drawings needed to be used in the embodiments description. Obviously, the drawings in the following description are only some embodiments of the present application, and other drawings can also be obtained by those skilled in the art without any creative effort on the basis of these drawings.

[0035] In order to more completely understand the present application and its advantages, the following will be described in conjunction with the drawings, wherein the same reference numerals in the following description represent the same parts.

[0036] Figure 1 is a structural schematic diagram of the backlight module of the present application.

[0037] Figure 2 is Figure 1 is an exploded view of the backlight module shown in FIG. 1.

[0038] Figure 3 is Figure 1 is another structural schematic diagram of the backlight module shown in FIG. 1.

[0039] Figure 4 is Figure 3 is a sectional view of the backlight module shown in FIG. 1 along the direction of A-A.

[0040] Figure 5 is a structural schematic diagram of the display device of the present application.

[0041] Figure 6 is Figure 5A sectional view of the display device shown along the B-B direction.

[0042] Figure 7 A partial enlarged view of X of Figure 6

[0043] Figure 8 A partial enlarged view of Y of Figure 5

[0044] Figure 9 A partial enlarged view of Z of Figure 8

[0045] Figure 10 A partial enlarged view of Y of Figure 6 Legend of reference signs:

[0046] 100, backlight module;

[0047] 11, lamp plate; 111, long side; 112, short side; 113, soldering point; 12, mounting frame; 12a, first frame body; 12b, second frame body; 121, first side frame; 122, second side frame; 123, third side frame; 124, first mounting groove; 125, first surface; 126, second surface; 127, third surface; 128, second mounting groove; 129, clamping position; 1291, first clamping groove; 1292, second clamping groove; 13, optical film;

[0048] 200, front frame;

[0049] 201, first plug-in part; 202, second plug-in part; 203, first buckle; 204, ring wall; 2041, ground side; 2042, left side; 2043, sky side; 2044, right side; 205, front wall; 206, connecting part; 207, first insertion groove; 208, first protruding part; 209, third plug-in part; 210, second buckle; 211, fourth plug-in part; 212, second protruding part; 213, second insertion groove

[0050] 300, rear shell;

[0051] 400, liquid crystal module.

[0052] DETAILED DESCRIPTION The technical solutions in the embodiments of the present application will be described clearly and completely below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor fall within the protection scope of the present application.

[0053] The technical solutions in the embodiments of the present application will be described clearly and completely below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor fall within the protection scope of the present application.​​​

[0054] In the embodiments of the present application, it should be noted that, in this document, the terms such as first and second are used only to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply there is any such actual relationship or order between these entities or operations.

[0055] Moreover, the terms "comprising", "containing", or any other variant thereof are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements, but can also include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without more limitations, an element defined by the phrase "comprising a" does not exclude the existence of additional identical elements in the process, method, article, or apparatus that includes the element.

[0056] In the description of the embodiments of the present application, the words "example" or "for example" are used to represent an example, illustration, or description. Any embodiment or design scheme described as "example" or "for example" in the embodiments of the present application is not interpreted as more preferred or having more advantages than another embodiment or design scheme. The words "example" or "for example" are intended to present a relative concept in a clear manner.

[0057] The embodiments of the present application provide a backlight module and a display device to facilitate the assembly of a lamp plate.

[0058] Please refer to Figure 1 In the first aspect, the embodiments of the present application provide a backlight module 100, comprising a lamp plate 11 and a mounting frame 12. The mounting frame 12 is arranged around the outer periphery of the lamp plate 11, and the multiple side edges of the lamp plate 11 in the circumferential direction are welded and fixed to the mounting frame 12.

[0059] In the embodiments of the present application, the lamp plate 11 is directly welded and fixed to the mounting frame 12, so that the mounting frame 12 can be directly connected and fixed with the shell of the display device or serve as part of the shell of the display device, so as to save the screw locking operation between the lamp plate 11 and the back plate and the screw locking operation between the back plate and the middle frame, thereby facilitating the assembly of the lamp plate 11.

[0060] In some embodiments, each side edge of the lamp plate 11 in the circumferential direction is welded and fixed to the mounting frame 12, so that each side edge of the lamp plate 11 can be stably and reliably fixed to the mounting frame 12. Furthermore, the embodiments of the present application can also make the lamp plate 11 and the mounting frame 12 not be fixed by screwing.

[0061] Please refer to Figure 2In some embodiments, the edges of the lamp panel 11 include two long sides 111 and two short sides 112, the long sides 111 extend along the length direction of the lamp panel 11, and at least one long side 111 is welded and fixed with the mounting frame 12. The short sides 112 extend along the width direction of the lamp panel 11, and at least one short side 112 is welded and fixed with the mounting frame 12.

[0062] In the embodiments of the present application, "multiple" refers to two or more. Therefore, "multiple" in the embodiments of the present application can also be understood as "at least two". "At least one" can be understood as one or more, for example, one, two or more. For example, "including at least one" means including one, two or more, and does not limit which ones are included, for example, including at least one of A, B and C, then the included can be A, B, C, A and B, A and C, B and C, or A and B and C.

[0063] Therefore, only one long side 111 and one short side 112 can be welded and fixed with the mounting frame 12, two long sides 111 and one short side 112 can be welded and fixed with the mounting frame 12, one long side 111 and two short sides 112 can be welded and fixed with the mounting frame 12, or two long sides 111 and two short sides 112 can be welded and fixed with the mounting frame 12, and the embodiments of the present application do not limit this.

[0064] In some embodiments, the lamp panel 11 has a plurality of welding points 113, and the welding points 113 are welded and fixed with the mounting frame 12.

[0065] Therefore, the long side 111 and the short side 112 can be provided with the welding points 113, so that the long side 111 and the short side 112 of the lamp panel 11 are welded and fixed with the mounting frame 12.

[0066] In some embodiments, the number of welding points 113 on the long side 111 is greater than the number of welding points 113 provided on the short side 112. Therefore, by providing more welding points 113 on the longer long side 111, the stability and reliability of the welding of the long side 111 with the mounting frame 12 can be ensured.

[0067] Of course, in some other embodiments, the number of welding points 113 on the long side 111 is less than or equal to the number of welding points 113 provided on the short side 112, and the embodiments of the present application do not limit this.

[0068] In some embodiments, the lamp panel 11 has a plurality of groups of welding points 113, and the welding points 113 are welded and fixed with the mounting frame 12. Each group of welding points 113 includes at least two welding points 113, and the distance between two adjacent groups of welding points 113 is greater than the distance between two adjacent welding points 113 in the same group.

[0069] Further, by welding at least two welding points 113 in each group of welding points 113, the stability and reliability of welding at each group of welding points 113 can be ensured. At the same time, compared with the full circumferential welding of the lamp panel 11, the difficulty and cost of welding the lamp panel 11 and the mounting frame 12 can be reduced.

[0070] In some embodiments, the mounting frame 12 includes a first frame body 12a and a second frame body 12b. The first frame body 12a includes a first side frame 121, a second side frame 122, and a third side frame 123 connected in sequence. One end of the second frame body 12b is connected and fixed with the end of the first side frame 121 away from the second side frame 122, and the other end of the second frame body 12b is connected and fixed with the end of the third side frame 123 away from the second side frame 122. The second frame body 12b, the first side frame 121, the second side frame 122, and the third side frame 123 form an annular frame body, and the annular frame body is sleeved on the outer periphery of the lamp panel 11.

[0071] Therefore, during actual installation, the lamp panel 11 can be installed between the first side frame 121, the second side frame 122, and the third side frame 123, and then the second frame body 12b is connected and fixed with the first side frame 121 and the third side frame 123, so that the mounting frame 12 can be sleeved on the outer periphery of the lamp panel 11.

[0072] It can be understood that, during actual assembly, the first side frame 121, the second side frame 122, and the third side frame 123 can be welded and fixed with the lamp panel 11 first, and then the second frame body 12b is connected and fixed with the first side frame 121 and the third side frame 123; or the second frame body 12b can be connected and fixed with the first side frame 121 and the third side frame 123 first, and then the first side frame 121, the second side frame 122, and the third side frame 123 are welded and fixed with the lamp panel 11. The embodiments of the present application do not limit this.

[0073] In some embodiments, one end of the second frame body 12b is welded and fixed with the end of the first side frame 121 away from the second side frame 122, and the other end of the second frame body 12b is welded and fixed with the end of the third side frame 123 away from the second side frame 122. Therefore, the first frame body 12a and the second frame body 12b of the mounting frame 12 do not need to be screwed and fixed by screws, so as to simplify the installation of the mounting frame 12.

[0074] Furthermore, since the lamp panel 11 is also welded to the mounting frame 12, the welding of the first frame 12a and the second frame 12b, and the welding of the mounting frame 12 to the lamp panel 11 can be completed in one station and / or one step of the production line, thereby reducing the production cost of the backlight module 100 and the entire display device and improving production efficiency.

[0075] For example, the first frame 12a and the second frame 12b can be fixed by laser welding, and the mounting frame 12 and the light panel 11 can be fixed by laser welding.

[0076] Of course, the first frame 12a and the second frame 12b can be welded and fixed in other ways, and the mounting frame 12 and the lamp panel 11 can also be welded and fixed in other ways. This application embodiment does not limit this.

[0077] It is also understood that in some other embodiments, the first frame 12a and the second frame 12b may be fixed by screws or snaps, and this application embodiment does not limit this.

[0078] Please continue to refer to this. Figure 3 and Figure 4 In some embodiments, the mounting frame 12 is provided with a first mounting groove 124, the opening of the first mounting groove 124 faces the inner periphery of the mounting frame 12, and the edge of the lamp panel 11 is inserted into the first mounting groove 124.

[0079] For example, the first mounting slot 124 may be at least partially disposed in the first frame 121, the second frame 122, and the third frame 123. During the assembly of the backlight module 100, the lamp board 11 is inserted from the side of the first frame 12a away from the second frame 122 between the first frame 121 and the second frame 122 until the peripheral edge of the lamp board 11 is respectively inserted into the first mounting slot 124 on the first frame 121, the second frame 122, and the third frame 123.

[0080] The second frame 12b can also be provided with a first mounting groove 124, so that after the lamp board 11 is inserted into the first frame 12a, the second frame 12b can be fixed on the lamp board 11 by inserting it into the lamp board 11 through the first mounting groove 124. Then, the second frame 12b and the first frame 12a are welded and fixed to achieve the assembly of the mounting frame 12.

[0081] Accordingly, the mounting frame 12 may have a first surface 125, a second surface 126, and a third surface 127 connected in sequence. The first surface 125 faces the outer peripheral side of the mounting frame 12, and the third surface 127 faces the inner peripheral side of the mounting frame 12 and forms a partial groove end face of the first mounting groove 124. The mounting frame 12 is welded and fixed to the lamp plate 11 from at least one of the second surface 126 and the third surface 127.

[0082] Therefore, during the welding of the lamp panel 11 and the mounting frame 12, the welding equipment can be used to complete the welding of all positions of the lamp panel 11 and the mounting frame 12 at one time on the side where the second surface 126 of the mounting frame 12 is located.

[0083] For example, the backlight module 100 is placed in a posture with the second surface 126 of the mounting frame 12 facing upward, and the laser welding head of the laser welding equipment works above the mounting frame 12 and moves around the outer periphery of the lamp panel 11 to realize the welding and fixation of each side edge of the lamp panel 11 in the circumferential direction and the mounting frame 12.

[0084] Of course, in some other embodiments, the mounting frame 12 can be welded and fixed with the lamp panel 11 at least from the first surface 125, which is not limited in the embodiments of the present application.

[0085] In some embodiments, when the mounting frame 12 is welded and fixed with the lamp panel 11 from the second surface 126, the thickness of the inner surface of the first mounting groove 124 to the second surface 126 is greater than or equal to 0.7 mm and less than or equal to 1.3 mm.

[0086] It can be understood that when the thickness at the second surface 126 is too large, the laser welding equipment will be difficult to weld the mounting frame 12 and the lamp panel 11 from the second surface 126, thereby causing the mounting frame 12 and the lamp panel 11 to be unable to be welded and fixed or the welding to be not firm; when the thickness at the second surface 126 is too small, the laser is easy to burn through the second surface 126 of the mounting frame 12, thereby also causing the mounting frame 12 and the lamp panel 11 to be unable to be welded and fixed or the welding to be not firm.

[0087] For example, the thickness of the inner surface of the first mounting groove 124 to the second surface 126 is 0.7 mm, 0.8 mm, 0.85 mm, 0.891 mm, 0.9 mm, 0.94 mm, 0.955 mm, 0.98 mm, 1 mm, 1.08 mm, 1.11 mm, 1.2 mm, 1.25 mm, 1.29 mm or 1.3 mm, which is not limited in the embodiments of the present application.

[0088] In some embodiments, the lamp panel 11 includes a substrate and lamp beads arranged on the substrate. The mounting frame 12 and the substrate are welded and fixed.

[0089] In some embodiments, the material of the mounting frame 12 is the same as that of the substrate. Therefore, the critical temperature and the suitable welding temperature of the melting of the mounting frame 12 and the substrate during welding are the same, thereby improving the quality and reliability of the welding of the mounting frame 12 and the substrate.

[0090] In some embodiments, the mounting frame 12 is made of aluminum, aluminum alloy, iron or iron alloy.

[0091] Exemplarily, the substrate and the mounting frame 12 can be made of aluminum.

[0092] In some embodiments, the mounting frame 12 is further provided with a second mounting groove 128, and the opening of the second mounting groove 128 faces the inner circumferential side of the mounting frame 12.

[0093] The backlight module 100 further includes an optical film 13, and the edge of the optical film 13 is inserted into the second mounting groove 128. The optical film 13 can include a diffusion plate, a light uniformizing sheet, a brightness enhancement sheet, a polarizing sheet, etc., and the embodiments of the present application do not limit the optical film 13.

[0094] In a second aspect, the embodiments of the present application further provide a display device, and the display device can include the backlight module 100 of the first aspect. The display device can be a liquid crystal display panel, electronic paper, a mobile phone, a tablet computer, a television, a display, a notebook computer, a digital photo frame, a navigator, or any product or component having a display function, and the embodiments of the present application do not limit the specific structure of the display device.

[0095] Therefore, since the display device has the backlight module 100 as described in the first aspect, the lamp plate 11 is directly welded and fixed on the mounting frame 12, and then the mounting frame 12 can be directly connected and fixed with the shell of the display device or serve as part of the shell of the display device, so that the screw locking operation between the lamp plate 11 and the back plate and the screw locking operation between the back plate and the middle frame are omitted, thereby facilitating the assembly of the lamp plate 11 and finally facilitating the assembly of the display device.

[0096] Please continue to refer to Figure 5 and Figure 6 In some embodiments, the display device further includes a shell and a liquid crystal module 400, the backlight module 100 is installed in the shell, and the liquid crystal module 400 is arranged on the light emitting side of the backlight module 100. Therefore, the light generated by the backlight module 100 can light up the liquid crystal module 400 for display.

[0097] In some embodiments, the liquid crystal module 400 can be adhesively fixed on the mounting frame 12.

[0098] In some embodiments, the shell includes a front frame 200 and a rear shell 300. The front frame 200 is at least partially installed on the light emitting side of the backlight module 100. The liquid crystal module 400 is at least partially arranged between the light emitting side of the backlight module 100 and the front frame 200. The rear shell 300 is connected with the front frame 200, and the rear shell 300 and the front frame 200 form an installation cavity for accommodating the backlight module 100.

[0099] In some embodiments, the mounting frame 12 is arranged around the outer periphery of the lamp panel 11, and each of the multiple side edges in the circumferential direction of the mounting frame 12 is provided with a clamping position 129. The front frame 200 is sleeved on the mounting frame 12, and the front frame 200 is clamped with all the clamping positions 129 of the mounting frame 12.

[0100] Further, by clamping the multiple side edges of the front frame 200 on the mounting frame 12, the front frame 200 and the mounting frame 12 do not need to be fixed by screwing, so that the installation of the front frame 200 and the backlight module 100 is more convenient.

[0101] Please continue to refer to Figure 7 In some embodiments, each of the side edges in the circumferential direction of the mounting frame 12 is provided with a clamping position 129, and the clamping position 129 is arranged along the corresponding side edge of the mounting frame 12, so that each of the side edges of the front frame 200 is stably and reliably connected with the mounting frame 12.

[0102] In some embodiments, the clamping position 129 includes a clamping groove arranged along the corresponding side edge of the mounting frame 12. Further, the longer structure of the clamping groove can make the contact area of the mounting frame 12 and the front frame 200 larger, so as to improve the stability and reliability of the installation of the front frame 200.

[0103] As mentioned above, the mounting frame 12 is made of aluminum, aluminum alloy, iron or iron alloy. Then, the mounting frame 12 can be an extruded part, for example, an aluminum extruded part or an aluminum alloy extruded part, etc.

[0104] In the actual production process, the profile can be extruded by extrusion process, so that the profile has the above-mentioned clamping groove, first mounting groove 124 and second mounting groove 128, etc. Then, the profile is subjected to numerical control machining and bending, etc. to form the mounting frame 12.

[0105] In some embodiments, the clamping position 129 includes a first clamping groove 1291 and a second clamping groove 1292, the first clamping groove 1291 is located on one side of the second clamping groove 1292 in the thickness direction of the backlight module 100, and the slot of the first clamping groove 1291 and the second clamping groove 1292 is towards the outer periphery side of the mounting frame 12. The front frame 200 includes a first plug-in part 201 and a second plug-in part 202, the first plug-in part 201 is plugged into the first clamping groove 1291, and the second plug-in part 202 is plugged into the second clamping groove 1292.

[0106] Therefore, the front frame 200 can be plugged into the clamping position 129 by the first plug-in part 201 and the second plug-in part 202 to increase the fitting area of the front frame 200 and the mounting frame 12, so that the front frame 200 is more stably fixed on the mounting frame 12.

[0107] In some embodiments, the second insertion part 202 is provided with a first clasp 203 on a side close to or away from the first insertion part 201, and the first clasp 203 is clamped to the inner wall of the second clamping groove 1292 to limit the second insertion part 202 from exiting the second clamping groove 1292.

[0108] Therefore, on the one hand, the front frame 200 is fixed to the mounting frame 12 by the first insertion part 201 and the second insertion part 202, and the front frame 200 can be limited from being separated from the mounting frame 12 along the thickness direction of the backlight module 100; on the other hand, the first clasp 203 can limit the front frame 200 from being deformed in a direction away from the outer circumferential surface of the mounting frame 12, so that the first insertion part 201 and the second insertion part cannot be separated from the corresponding first clamping groove 1291 and the second clamping groove 1292 of the mounting frame 12, and finally the front frame 200 is clamped and fixed on the mounting frame 12.

[0109] In some embodiments, the front frame 200 includes a ring wall 204 and a front wall 205. The ring wall 204 surrounds the outer circumferential side of the mounting frame 12. The front wall 205 is connected to the ring wall 204, and the front wall 205 is located on the light exit side of the backlight module 100.

[0110] Therefore, after the front frame 200 is sleeved on the mounting frame 12 through the ring wall 204, the liquid crystal module 400 and the like can be clamped and fixed by the mounting frame 12 and the front wall 205 together.

[0111] In some embodiments, the ring wall 204 and the front wall 205 are integrally formed.

[0112] It can be understood that in the related art, the front frame 200 usually includes a U-shaped frame and a strip-shaped frame. The U-shaped frame is locked and fixed on the left side of the backlight module 100 by a screw on one side edge, on the top side of the backlight module 100 by a screw on one side edge, and on the right side of the backlight module 100 by a screw on one side edge. The strip-shaped frame is locked and fixed on the bottom side of the backlight module 100 by a screw. Finally, the U-shaped frame and the strip-shaped frame are screw-fixed.

[0113] In the embodiments of the present application, the ring wall 204 and the front wall 205 are integrally formed, so that the front frame 200 can be simply sleeved on the mounting frame 12 of the backlight module 100, and the assembly of the display device is more simple.

[0114] For example, the front frame 200 can be a plastic part formed by injection molding.

[0115] In some embodiments, the front frame 200 further includes a connecting part 206 connected to the inner circumferential surface of the ring wall 204 and the front wall 205 respectively, and the first insertion part 201 and the second insertion part 202 are provided on a side of the connecting part 206 away from the ring wall 204.

[0116] Further, the structural strength of the front frame 200 can be increased by connecting the connecting portion 206 with the ring wall 204 and the front wall 205 respectively. On this basis, the first plug-in portion 201 and the second plug-in portion 202 are both protruded from the connecting portion 206, which can make the front frame 200 more stably and reliably clamped on the mounting frame 12.

[0117] Please continue to combine Figure 8 and Figure 9 In some embodiments, an end of the connecting portion 206 away from the front wall 205 and the inner circumferential surface of the ring wall 204 form a first insertion slot 207, and the slot of the first insertion slot 207 is away from the front wall 205. The edge of the rear shell 300 is plugged into the first insertion slot 207. Further, the connecting portion 206 can also be reused for the connection and fixation of the rear shell 300 and the front frame 200, so that the front frame 200 has the advantage of simple structure.

[0118] In some embodiments, the inner circumferential surface of the ring wall 204 is protruded with a first protruding portion 208, and the first protruding portion 208 is provided through the rear shell 300 to limit the rear shell 300 from being separated from the first insertion slot 207 in a direction away from the front wall 205.

[0119] Further, on the one hand, the front frame 200 can clamp the edge of the rear shell 300 through the ring wall 204 and the connecting portion 206; on the other hand, the front frame 200 can limit the edge of the rear shell 300 from being separated from the first insertion slot 207 through the first protruding portion 208, thereby realizing the clamping and fixation of the front frame 200 and the rear shell 300, so that the front frame 200 and the rear shell 300 can be fixed without using screws, and finally the installation of the rear shell 300 is more simple.

[0120] It can also be understood that in the backlight module 100, in order to avoid deformation of the lamp plate 11, the strength of the mounting frame 12 is relatively high; and the rear shell 300, as the main carrier of the display device, is used to install various parts of the display device, so the strength of the rear shell 300 is also relatively high. Therefore, by arranging the protruding structures such as the first protruding portion 208, the connecting portion 206, the first plug-in portion 201 and the second plug-in portion 202 on the front frame 200, the low strength and easy deformation of the front frame 200 can be fully utilized to realize the clamping of the front frame 200 and the mounting frame 12 during installation, and realize the clamping of the front frame 200 and the rear shell 300 during installation, and finally the display device has the advantage of easy assembly.

[0121] In some embodiments, the ring wall 204 includes a ground side 2041, a left side 2042, a top side 2043 and a right side 2044 connected in sequence.

[0122] In some embodiments, the liquid crystal module 400 is connected to an electrical connector (not shown in the figure), the electrical connector portion being located between adjacent connection portions 206 to extend to the side of the backlight module 100 opposite to the liquid crystal module 400.

[0123] For example, electrical connectors may include COF (Chip On Flex), FPC (Flexible Printed Circuit), etc., but this application does not limit them.

[0124] Please continue to refer to this. Figure 10 In some embodiments, at least one of the left side 2042, the top side 2043 and the right side 2044 is further provided with a third insertion part 209. The third insertion part 209 extends along the corresponding left side 2042, the top side 2043 or the right side 2044, and the third insertion part 209 is inserted into the first slot 1291 or the second slot 1292.

[0125] Since space for power supply connector wiring has already been formed between adjacent connecting portions 206 on the ground side 2041, space for power supply connector wiring does not need to be reserved on the left side 2042, the top side 2043, or the right side 2044. Therefore, a long strip-shaped third plug-in portion 209 can be provided at at least one of the left side 2042, the top side 2043, and the right side 2044 to increase the plug-in area between the front frame 200 and the mounting frame 12, thereby improving the stability of the plug-in connection between the front frame 200 and the mounting frame 12.

[0126] In some embodiments, the third plug portion 209 is provided with a second buckle 210, which engages with the inner wall of the first slot 1291 to prevent the third plug portion 209 from disengaging from the first slot 1291.

[0127] On the one hand, the front frame 200 is fixed to the mounting frame 12 by the third insertion part 209, which can restrict the front frame 200 from detaching from the mounting frame 12 along the thickness direction of the backlight module 100; on the other hand, the second buckle 210 can restrict the front frame 200 from deforming in the direction away from the outer peripheral surface of the mounting frame 12, so that the third insertion part 209 cannot detach from the first slot 1291, and finally achieve the goal of clamping and fixing the front frame 200 to the mounting frame 12.

[0128] In some embodiments, the third inserting part 209 is inserted into the first clamping groove 1291, and the front frame 200 further comprises a fourth inserting part 211 located on one side of the third inserting part 209 along the thickness direction of the backlight module 100, and the fourth inserting part 211 is inserted into the second clamping groove 1292. Further, the fourth inserting part 211 inserted into the second clamping groove 1292 can further increase the inserting area of the front frame 200 and the mounting frame 12, and finally improve the stability of the inserting of the front frame 200 and the mounting frame 12.

[0129] In some embodiments, the front frame 200 further comprises a second protruding part 212 connected to the side of the third inserting part 209 away from the fourth inserting part 211, and a second inserting groove 213 is formed between the second protruding part 212 and the inner circumferential surface of the ring wall 204, and the edge of the rear shell 300 is inserted into the second inserting groove 213. Further, the connection of the rear shell 300 and the front frame 200 can be more stable.

[0130] As mentioned above, in some embodiments, the edge of the rear shell 300 is arranged on the inner circumferential side of the ring wall 204, and the inner circumferential surface of the ring wall 204 is provided with the first protruding part 208, and the first protruding part 208 is arranged through the rear shell 300 to limit the rear shell 300 from being separated from the second inserting groove 213 in the direction away from the front wall 205.

[0131] Then, at least part of the first protruding part 208 can be located on the side of the third inserting part 209 away from the fourth inserting part 211. Further, the part of the front frame 200 close to the front wall 205 is clamped and fixed with the mounting frame 12 of the backlight module 100, and the part of the front frame 200 away from the front wall 205 is clamped and fixed with the rear shell 300, and finally the connection of the backlight module 100, the front frame 200 and the rear shell 300 is more stable and reliable.

[0132] In the description of the present application, the terms "first", "second" are only for descriptive purposes, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first", "second" can explicitly or implicitly include one or more features. In the description of the present application, the meaning of "multiple" is two or more, unless otherwise specifically limited.

[0133] In the above embodiments, the description of each embodiment has its own emphasis, and the parts not described in detail in a certain embodiment can be referred to the related description of other embodiments.

[0134] The embodiments, implementation manners and related technical features of the present application can be combined or replaced with each other without conflict.

[0135] The above merely describes the preferred embodiments of the present application, and is not intended to limit the present application in any form, but any simple modification, equivalent change and modification made to the above embodiments without departing from the technical solution content of the present application and in accordance with the technical essence of the present application, are still within the scope of the technical solution of the present application.

Claims

1. A backlight module, characterized in that, include: Light panel; and, The mounting frame is arranged around the outer periphery of the lamp panel, and the multiple edges of the lamp panel in the circumferential direction are welded and fixed to the mounting frame.

2. The backlight module according to claim 1, characterized in that, The lamp panel includes a substrate and lamp beads disposed on the substrate. A mounting frame is welded and fixed to the substrate, and the material of the mounting frame is the same as that of the substrate; and / or, The mounting frame is made of aluminum, aluminum alloy, iron, or iron alloy.

3. The backlight module according to claim 1, characterized in that, The edge of the lamp panel includes: Two long sides, the long sides extending along the length direction of the lamp panel, and at least one of the long sides being welded and fixed to the mounting frame; and, Two short sides are provided, which extend along the width direction of the light panel, and at least one of the short sides is welded and fixed to the mounting frame.

4. The backlight module according to claim 3, characterized in that, The lamp panel has multiple welding points, which are welded and fixed to the mounting frame. The welding points are provided on both the long side and the short side, and the number of welding points on the long side is greater than the number of welding points on the short side.

5. The backlight module according to claim 1, characterized in that, The lamp panel has multiple sets of welding points, which are welded and fixed to the mounting frame. Each group of welding points includes at least two welding points, and the distance between two adjacent groups of welding points is greater than the distance between two adjacent welding points within the same group.

6. The backlight module according to claim 1, characterized in that, The mounting frame includes: A first frame, comprising a first border, a second border, and a third border that are sequentially bent and connected; and, The second frame has one end welded and fixed to the end of the first frame away from the second frame, and the other end welded and fixed to the end of the third frame away from the second frame. The second frame, the first frame, the second frame and the third frame together form an annular frame, which is fitted around the outer periphery of the light panel.

7. The backlight module according to any one of claims 1 to 6, characterized in that, The mounting frame is provided with a first mounting groove, the opening of the first mounting groove faces the inner periphery of the mounting frame, and the edge of the lamp panel is inserted into the first mounting groove. The mounting frame has a first surface, a second surface, and a third surface connected in sequence. The first surface faces the outer periphery of the mounting frame, and the third surface faces the inner periphery of the mounting frame and forms a portion of the groove end face of the first mounting groove. The mounting frame is welded and fixed to the lamp plate from at least one position on the second surface and the third surface.

8. The backlight module according to claim 7, characterized in that, When the mounting frame is welded and fixed from the second surface and the lamp panel, the thickness of the inner surface of the first mounting groove to the second surface is greater than or equal to 0.7 mm and less than or equal to 1.3 mm.

9. The backlight module according to claim 7, characterized in that, The mounting frame is further provided with a second mounting groove, the opening of which faces the inner periphery of the mounting frame; The backlight module also includes an optical film, the edge of which is inserted into the second mounting slot.

10. A display device, characterized in that, include: shell; The backlight module as described in any one of claims 1 to 9 is installed within the housing; and, A liquid crystal module, wherein the liquid crystal module is disposed on the light-emitting side of the backlight module.

11. The display device according to claim 10, characterized in that, The outer casing includes: A front frame, at least partially mounted on the light-emitting side of the backlight module, and a liquid crystal module at least partially disposed between the light-emitting side of the backlight module and the front frame; and The rear shell is connected to the front frame, and the rear shell and the front frame together form a mounting cavity for accommodating the backlight module.

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