Display device

Abstract

The display equipment comprises a backlight module and a front frame, the backlight module comprises a mounting frame and a lamp panel, the mounting frame is arranged around the outer periphery of the lamp panel, and clamping positions are arranged on multiple side edges in the circumferential direction of the mounting frame; the front frame is sleeved on the mounting frame, and the front frame is clamped with all the clamping positions of the mounting frame. According to the display device, the backlight module is clamped with the front frame through multiple sides, so that the backlight module and the front frame do not need to be fixed in a screwed mode, and then the display device is convenient to assemble.

Description

Technical Field

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

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

[0003] In the related art, the display device also includes a front frame, and the backlight module is usually fastened to the front frame by screws. The screw-fastening method makes it difficult to assemble the backlight module. Summary of the invention

[0004] The embodiments of the present application provide a backlight module and a display device to facilitate the assembly of the display device.

[0005] In a first aspect, an embodiment of the present application provides a display device, including:

[0006] A backlight module, the backlight module comprising a mounting frame and a light board, the mounting frame being arranged around the outer periphery of the light board, and multiple side edges of the mounting frame in the circumferential direction are provided with snap-fit ​​positions; and,

[0007] A front frame is sleeved on the installation frame, and the front frame is engaged with all the engaging positions of the installation frame.

[0008] In some embodiments, each side edge of the installation frame in the circumferential direction is provided with the clamping position, and the clamping position is extended along a side edge corresponding to the installation frame; and / or,

[0009] The engaging position comprises a slot extending along a side edge corresponding to the installation frame; and / or,

[0010] The installation frame is made of aluminum, aluminum alloy, iron or iron alloy.

[0011] In some embodiments, the engaging position includes a first card slot and a second card slot, the first card slot is located on one side of the second card slot along the thickness direction of the backlight module, and the notches of the first card slot and the second card slot are both facing the outer peripheral side of the installation frame;

[0012] The front frame includes a first plug-in portion and a second plug-in portion, the first plug-in portion is plugged into the first card slot, the second plug-in portion is plugged into the second card slot, a first buckle is protruding from a side of the second plug-in portion close to or away from the first plug-in portion, and the first buckle is engaged with an inner wall of the second card slot to limit the second plug-in portion from exiting the second card slot.

[0013] In some embodiments, the front frame includes:

[0014] an annular wall, the annular wall surrounding the outer peripheral side of the installation frame; and,

[0015] A front wall is connected to the annular wall and is located at the light-emitting side of the backlight module.

[0016] In some embodiments, the annular wall and the front wall are integrally formed.

[0017] In some embodiments, the front frame further includes a connecting portion, which is respectively connected to the inner circumferential surface of the annular wall and the front wall, and the first plug-in portion and the second plug-in portion are both protruding from a side of the connecting portion away from the annular wall.

[0018] In some embodiments, a first slot is formed between an end of the connecting portion away from the front wall and the inner circumferential surface of the annular wall, and a notch of the first slot faces away from the front wall;

[0019] The display device further comprises a rear shell, an edge of which is plugged into the first slot, and the rear shell and the front frame are enclosed to form a mounting cavity for accommodating the backlight module.

[0020] In some embodiments, a first protrusion is convexly provided on the inner circumferential surface of the annular wall, and the first protrusion passes through the rear shell to limit the rear shell from escaping from the first slot in a direction away from the front wall.

[0021] In some embodiments, the ring wall includes a ground side edge, a left side edge, a sky side edge, and a right side edge connected end to end in sequence;

[0022] There are multiple connecting parts, and the multiple connecting parts are arranged at intervals along the extending direction of the ground side edge;

[0023] At least one of the left side, the top side and the right side is further provided with a third plug-in portion, and the third plug-in portion extends along the corresponding left side, the top side or the right side, and the third plug-in portion is plugged into the first card slot or the second card slot.

[0024] In some embodiments, the plug-in portion is plugged into the first card slot, the front frame is further provided with a fourth plug-in portion, the fourth plug-in portion is located on one side of the third plug-in portion along the thickness direction of the backlight module, and the fourth plug-in portion is plugged into the second card slot.

[0025] In some embodiments, the third plug-in portion is provided with a second buckle, and the second buckle is engaged with the inner wall of the first slot to limit the third plug-in portion from being separated from the first slot; and / or,

[0026] The front frame further includes a second protrusion, the second protrusion is connected to a side of the third plug-in portion away from the fourth plug-in portion, a second slot is formed between the second protrusion and the inner circumferential surface of the annular wall, the display device further includes a rear shell, an edge of the rear shell is plugged into the second slot, and the rear shell and the front frame are enclosed to form a mounting cavity for accommodating the backlight module; and / or,

[0027] The display device also includes a rear shell, an edge of which is arranged on the inner peripheral side of the annular wall, and a first protrusion is convexly provided on the inner peripheral surface of the annular wall. The first protrusion passes through the rear shell to limit the rear shell from detaching from the front frame in a direction away from the front wall, and at least part of the first protrusion is located on a side of the third plug-in portion away from the fourth plug-in portion.

[0028] In some embodiments, multiple side edges of the light panel are fixed to the mounting frame by welding.

[0029] In some embodiments, the mounting frame is provided with a first mounting groove, the notch of the first mounting groove faces the inner circumference of the mounting frame, and the edge of the lamp panel is plugged into the first mounting groove;

[0030] Wherein, the mounting frame has a first surface, a second surface and a third surface connected in sequence, the first surface faces the outer peripheral side of the mounting frame, the third surface faces the inner peripheral side of the mounting frame and forms a partial notch end surface of the first mounting groove, and the mounting frame is welded and fixed to the lamp board from at least one position among the first surface, the second surface and the third surface.

[0031] Beneficial effects of the embodiments of the present application:

[0032] In the embodiment of the present application, the backlight module is clamped with the front frame through multiple sides, so that the backlight module and the front frame do not need to be screwed and fixed, thereby facilitating the assembly of the display device. BRIEF DESCRIPTION OF THE DRAWINGS

[0033] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the following briefly introduces the drawings required for use in the description of the embodiments. Obviously, the drawings described below are only some embodiments of the present application, and those skilled in the art can obtain other drawings based on these drawings without creative work.

[0034] In order to more completely understand the present application and its beneficial effects, the following description will be given in conjunction with the accompanying drawings, wherein the same figure numbers represent the same parts in the following description.

[0035] Figure 1 It is a schematic diagram of the structure of a display device according to an embodiment of the present application.

[0036] Figure 2 for Figure 1 An exploded view of the display device is shown.

[0037] Figure 3 for Figure 1 The shown figure shows a cross-sectional view of the device along direction BB.

[0038] Figure 4 for Figure 3 A local enlarged view of point X.

[0039] Figure 5 for Figure 2 A partial enlarged view of point Z.

[0040] Figure 6 for Figure 3 A partial enlarged view of point Y.

[0041] Figure 7 It is a schematic structural diagram of the backlight module of an embodiment of the present application.

[0042] Figure 8 yes Figure 7 An exploded view of the backlight module is shown.

[0043] Fig. 9 yes Figure 1 Another structural schematic diagram of the backlight module is shown.

[0044] Fig.10 yes Fig. 9 The cross-sectional view of the backlight module along the AA direction is shown.

[0045] Description of reference numerals:

[0046] 100. Backlight module;

[0047] 11. Light board; 111. Long side; 112. Short side; 113. Welding point; 12. Mounting frame; 12a. First frame; 12b. Second frame; 121. First frame; 122. Second frame; 123. Third 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 portion; 202, second plug-in portion; 203, first buckle; 204, ring wall; 2041, ground side; 2042, left side; 2043, sky side; 2044, right side; 205, front wall; 206, connecting portion; 207, first slot; 208, first protrusion; 209, third plug-in portion; 210, second buckle; 211, fourth plug-in portion; 212, second protrusion; 213, second slot

[0050] 300, back shell;

[0051] 400. Liquid crystal module. DETAILED DESCRIPTION

[0052] The technical solutions in the embodiments of the present application will be described clearly and completely below in conjunction with 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 of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative work are within the scope of protection of the present application.

[0053] In the embodiments of the present application, it should be noted that, in this article, relational terms such as first and second, etc. are merely used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations.

[0054] Moreover, the terms "comprises," "comprising," or any other variation thereof are intended to encompass non-exclusive inclusion, such that a process, method, article, or apparatus that includes a list of elements includes not only those elements, but also other elements not explicitly listed, or elements inherent to such process, method, article, or apparatus. In the absence of further limitations, an element defined by the phrase "comprising a ..." does not exclude the presence of additional identical elements in the process, method, article, or apparatus that includes the element.

[0055] In the description of the embodiments of the present application, words such as "example" or "for example" are used to indicate examples, illustrations or descriptions. Any embodiment or design described as "example" or "for example" in the embodiments of the present application is not to be interpreted as being more preferred or having more advantages than another embodiment or design. The use of words such as "example" or "for example" is intended to present relative concepts in a clear manner.

[0056] An embodiment of the present application provides a display device to facilitate assembly of the display device.

[0057] The display device may include the backlight module 100 described in the first aspect. The display device may be any product or component with a display function, such as a liquid crystal display panel, electronic paper, a mobile phone, a tablet computer, a television, a monitor, a notebook computer, a digital photo frame, a navigator, etc. The embodiment of the present application does not limit the specific structure of the display device.

[0058] Please refer to Figure 1 and Figure 2 The display device may include a backlight module 100 and a front frame 200. The backlight module 100 includes a mounting frame 12 and a light board 11. The mounting frame 12 is arranged around the outer periphery of the light board 11, and multiple side edges of the mounting frame 12 in the circumferential direction are provided with snap-in positions 129. The front frame 200 is sleeved on the mounting frame 12, and the front frame 200 is snap-in with all the snap-in positions 129 of the mounting frame 12.

[0059] Furthermore, since the front frame 200 is snap-fitted to the multiple side edges of the installation frame 12 , the front frame 200 and the installation frame 12 do not need to be screwed together and fixed, thereby making the installation of the front frame 200 and the backlight module 100 more convenient.

[0060] In some embodiments, the display device further includes a liquid crystal module 400, which is disposed on the light-emitting side of the backlight module 100. Thus, the light generated by the backlight module 100 can light up the liquid crystal module 400 for display.

[0061] In some implementations, the liquid crystal module 400 may be bonded and fixed to the mounting frame 12 .

[0062] In some embodiments, the display device further includes a rear case 300. The front frame 200 is at least partially mounted on the light-emitting side of the backlight module 100. The liquid crystal module 400 is at least partially disposed between the light-emitting side of the backlight module 100 and the front frame 200. The rear case 300 is connected to the front frame 200, and the rear case 300 and the front frame 200 enclose a mounting cavity for accommodating the backlight module 100.

[0063] Please continue to refer to Figure 3 and Figure 4 In some embodiments, each side edge of the mounting frame 12 in the circumferential direction is provided with a snap-in position 129 , and the snap-in position 129 is extended along a corresponding side edge of the mounting frame 12 , so that each side edge of the front frame 200 establishes a stable and reliable connection with the mounting frame 12 .

[0064] In some embodiments, the engaging position 129 includes a slot extending along a corresponding side edge of the mounting frame 12. Further, the longer slot structure can make the contact area between 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.

[0065] In some embodiments, the mounting frame 12 is made of aluminum, aluminum alloy, iron or iron alloy. Then, the mounting frame 12 can be an extrusion, for example, the mounting frame 12 is an aluminum extrusion or an aluminum alloy extrusion.

[0066] In the actual production process, the profile can be extruded by an extrusion process, so that the profile has the above-mentioned card slot, the first installation slot 124 and the second installation slot 128. Then, the profile is subjected to numerical control processing and bending operations to form the installation frame 12.

[0067] In some embodiments, the engaging position 129 includes a first engaging slot 1291 and a second engaging slot 1292, the first engaging slot 1291 is located at one side of the second engaging slot 1292 along the thickness direction of the backlight module 100, and the notches of the first engaging slot 1291 and the second engaging slot 1292 are both oriented toward the outer peripheral side of the mounting frame 12. The front frame 200 includes a first plug-in portion 201 and a second plug-in portion 202, the first plug-in portion 201 is plugged into the first engaging slot 1291, and the second plug-in portion 202 is plugged into the second engaging slot 1292.

[0068] Thus, the front frame 200 can be plugged into the engaging position 129 through the first plugging portion 201 and the second plugging portion 202 to increase the matching area between the front frame 200 and the installation frame 12 , so that the front frame 200 is more stably fixed on the installation frame 12 .

[0069] In some embodiments, a first buckle 203 is protruded from one side of the second plug-in portion 202 close to or away from the first plug-in portion 201 , and the first buckle 203 is engaged with the inner wall of the second slot 1292 to restrict the second plug-in portion 202 from withdrawing from the second slot 1292 .

[0070] Then, on the one hand, the front frame 200 is fixed to the mounting frame 12 by means of the first plug-in portion 201 and the second plug-in portion 202, which can limit the front frame 200 from being separated from the mounting frame 12 along the thickness direction of the backlight module 100; on the other hand, the first buckle 203 can limit the front frame 200 from being deformed in the direction away from the outer peripheral side surface of the mounting frame 12, so that the first plug-in portion 201 and the second plug-in portion cannot be separated from the first card groove 1291 and the second card groove 1292 corresponding to the mounting frame 12, and finally the front frame 200 is clamped and fixed on the mounting frame 12.

[0071] In some embodiments, the front frame 200 includes a ring wall 204 and a front wall 205. The ring wall 204 surrounds the outer periphery of the mounting frame 12. The front wall 205 is connected to the ring wall 204 and is located at the light emitting side of the backlight module 100.

[0072] Therefore, after the front frame 200 is sleeved on the installation frame 12 through the annular wall 204 , the liquid crystal module 400 etc. can be clamped and fixed by the installation frame 12 and the front wall 205 .

[0073] In some embodiments, the annular wall 204 and the front wall 205 are integrally formed.

[0074] It is understandable that in the related art, the front frame 200 usually includes a U-shaped frame and a strip frame, the U-shaped frame is locked and fixed to the left side of the backlight module 100 by screws on one edge, locked and fixed to the sky side of the backlight module 100 on one edge, and locked and fixed to the right side of the backlight module 100 on one edge, the strip frame is locked and fixed to the ground side of the backlight module 100 by screws, and finally the U-shaped frame and the strip frame are screwed and fixed.

[0075] In the embodiment of the present application, the annular wall 204 and the front wall 205 are integrally formed, so that the front frame 200 can be simply sleeved onto the mounting frame 12 of the backlight module 100 , making the assembly of the display device easier.

[0076] Exemplarily, the front frame 200 is an integrally formed structure. For example, the front frame 200 may be an injection-molded plastic part.

[0077] In some embodiments, the front frame 200 further includes a connecting portion 206 , which is respectively connected to the inner circumference of the annular wall 204 and the front wall 205 , and the first plug-in portion 201 and the second plug-in portion 202 are both protruding from a side of the connecting portion 206 away from the annular wall 204 .

[0078] Furthermore, the structural strength of the front frame 200 can be increased by connecting the connecting portion 206 to the annular wall 204 and the front wall 205. On this basis, the first plug portion 201 and the second plug portion 202 are both protruded from the connecting portion 206, so that the front frame 200 can be more stably and reliably connected to the installation frame 12.

[0079] Please continue to refer to Figure 5 In some embodiments, a first slot 207 is formed between one end of the connection portion 206 away from the front wall 205 and the inner circumferential surface of the annular wall 204, and the notch of the first slot 207 faces away from the front wall 205. The edge of the rear shell 300 is inserted into the first slot 207. Furthermore, the connection portion 206 can also be reused to connect and fix the rear shell 300 and the front frame 200, so that the specific structure of the front frame 200 is simple.

[0080] In some embodiments, a first protrusion 208 is convexly disposed on the inner circumference of the annular wall 204 . The first protrusion 208 penetrates the rear shell 300 to limit the rear shell 300 from being separated from the first slot 207 in a direction away from the front wall 205 .

[0081] Furthermore, on the one hand, the front frame 200 can clamp the edge of the rear shell 300 through the annular 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 slot 207 through the first protrusion 208, thereby achieving the snap-fit ​​fixation of the front frame 200 and the rear shell 300, so that the front frame 200 and the rear shell 300 can be screwed and fixed without using screws, ultimately making the installation of the rear shell 300 easier.

[0082] It can also be understood that in order to prevent the lamp board 11 from deforming in the backlight module 100, the mounting frame 12 has a high strength; and the rear shell 300 is the main carrier of the display device to install various components of the display device, and the strength of the rear shell 300 is also high. Therefore, by arranging the first protruding portion 208, the connecting portion 206, the first plug-in portion 201 and the second plug-in portion 202 and other protruding structures on the front frame 200, the characteristics of the front frame 200 being low in strength and easy to deform can be fully utilized to achieve the clamping of the front frame 200 and the mounting frame 12 during the installation process, and the clamping of the front frame 200 and the rear shell 300 during the installation process, and finally the display device has the advantage of being easy to assemble.

[0083] In some embodiments, the annular wall 204 includes a ground side edge 2041, a left side edge 2042, a top side edge 2043, and a right side edge 2044 connected end to end. There are multiple connecting portions 206, which are spaced apart along the extending direction of the ground side edge 2041.

[0084] In some embodiments, the liquid crystal module 400 is connected to an electrical connector (not shown), and a portion of the electrical connector is located between adjacent connection portions 206 to extend to a side of the backlight module 100 facing away from the liquid crystal module 400 .

[0085] For example, the electrical connector may include COF (Chip On Flex), FPC (Flexible Printed Circuit), etc., which is not limited in the embodiments of the present application.

[0086] Please continue to refer to Figure 6 In some embodiments, at least one of the left side 2042, the top side 2043 and the right side 2044 is also provided with a third plug-in portion 209, and the third plug-in portion 209 is extended along the corresponding left side 2042, the top side 2043 or the right side 2044, and the third plug-in portion 209 is plugged into the first card slot 1291 or the second card slot 1292.

[0087] Then, since space for wiring the power supply connector has been formed between the adjacent connecting parts 206 of the ground side 2041, there is no need to reserve space for wiring the power supply connector on the left side 2042, the top side 2043 or the right side 2044. Therefore, a long strip of third plug-in part 209 can be set at at least one of the left side 2042, the top side 2043 and the right side 2044 to increase the plug-in area of ​​the front frame 200 and the installation frame 12, and ultimately improve the stability of the plug-in between the front frame 200 and the installation frame 12.

[0088] In some embodiments, the third plug-in portion 209 is protrudingly provided with a second buckle 210 , and the second buckle 210 is engaged with the inner wall of the first slot 1291 to restrict the third plug-in portion 209 from being separated from the first slot 1291 .

[0089] Then, on the one hand, the front frame 200 is plugged and fixed to the mounting frame 12 through the third plug-in portion 209, which can limit the front frame 200 from being separated from the mounting frame 12 along the thickness direction of the backlight module 100; on the other hand, the second buckle 210 can limit the front frame 200 from being deformed in the direction away from the outer peripheral side surface of the mounting frame 12, so that the third plug-in portion 209 cannot be separated from the first slot 1291, and finally the front frame 200 is clamped and fixed on the mounting frame 12.

[0090] In some embodiments, the third plug-in portion 209 is plugged into the first card slot 1291, and the front frame 200 is further provided with a fourth plug-in portion 211, which is located at one side of the third plug-in portion 209 along the thickness direction of the backlight module 100, and the fourth plug-in portion 211 is plugged into the second card slot 1292. Furthermore, the plug-in area of ​​the front frame 200 and the installation frame 12 can be further increased by plugging the front frame 200 into the second card slot 1292 through the fourth plug-in portion 211, and finally the plug-in stability of the front frame 200 and the installation frame 12 can be improved.

[0091] In some embodiments, the front frame 200 further includes a second protrusion 212, the second protrusion 212 is connected to a side of the third plug-in portion 209 away from the fourth plug-in portion 211, a second slot 213 is formed between the second protrusion 212 and the inner circumference of the annular wall 204, and the edge of the rear shell 300 is inserted into the second slot 213. Thus, the connection between the rear shell 300 and the front frame 200 can be made more stable.

[0092] As mentioned above, in some embodiments, the edge of the rear shell 300 is arranged on the inner peripheral side of the annular wall 204, and the inner peripheral surface of the annular wall 204 is convexly provided with a first protrusion 208, and the first protrusion 208 passes through the rear shell 300 to limit the rear shell 300 from detaching from the front frame 200 in a direction away from the front wall 205, such as limiting the edge of the rear shell 300 from detaching from the second slot 213.

[0093] Then, at least part of the first protrusion 208 may be located on the side of the third plug-in portion 209 away from the fourth plug-in portion 211. Thus, 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 among the backlight module 100, the front frame 200 and the rear shell 300 is more stable and reliable.

[0094] Please continue to refer to Figure 7 and Figure 8 In some embodiments, multiple side edges of the light board 11 in the circumferential direction are welded and fixed to the mounting frame 12 .

[0095] In the embodiment of the present application, the lamp board 11 is directly welded and fixed on the mounting frame 12, so the mounting frame 12 can be directly connected and fixed to the outer shell of the display device or serve as a partial outer shell of the display device, so as to save the screw locking operation between the lamp board 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 board 11.

[0096] In some embodiments, each side edge of the light board 11 in the circumferential direction is welded and fixed to the mounting frame 12, so that each side edge of the light board 11 can be stably and reliably fixed to the mounting frame 12. Furthermore, the embodiment of the present application can also make the light board 11 and the mounting frame 12 not be fixed by screws.

[0097] In some embodiments, the edge of the light board 11 includes two long sides 111 and two short sides 112, the long sides 111 extend along the length direction of the light board 11, and at least one long side 111 is welded and fixed to the mounting frame 12. The short sides 112 extend along the width direction of the light board 11, and at least one short side 112 is welded and fixed to the mounting frame 12.

[0098] In the embodiments of the present application, "plurality" refers to two or more than two. In view of this, in the embodiments of the present application, "plurality" 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 there is no limit on which ones are included. For example, including at least one of A, B and C, then A, B, C, A and B, A and C, B and C, or A, B and C can be included.

[0099] Therefore, only one long side 111 and one short side 112 may be welded and fixed to the installation frame 12, or two long sides 111 and one short side 112 may be welded and fixed to the installation frame 12, or one long side 111 and two short sides 112 may be welded and fixed to the installation frame 12, or two long sides 111 and two short sides 112 may be welded and fixed to the installation frame 12, and the embodiments of the present application do not limit this.

[0100] In some embodiments, the lamp board 11 has a plurality of welding points 113 , and the welding points 113 are fixed to the mounting frame 12 by welding.

[0101] Then, both the long side 111 and the short side 112 may be provided with welding points 113 , so that both the long side 111 and the short side 112 of the lamp board 11 are welded and fixed to the installation frame 12 .

[0102] In some embodiments, the number of welding points 113 on the long side 111 is greater than the number of welding points 113 set on the short side 112. Therefore, by setting more welding points 113 on the longer long side 111, the stability and reliability of welding between the long side 111 and the installation frame 12 can be ensured.

[0103] Of course, in some other implementations, the number of welding points 113 on the long side 111 is less than or equal to the number of welding points 113 set on the short side 112, and this embodiment of the present application does not limit this.

[0104] In some embodiments, the lamp board 11 has multiple groups of welding points 113, and the welding points 113 are welded and fixed to 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.

[0105] Furthermore, by performing at least two weldings at 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 whole circumference of the lamp board 11 being welded and fixed to the lamp board 11, the embodiment of the present application can also reduce the difficulty and cost of welding the lamp board 11 to the mounting frame 12.

[0106] In some embodiments, the mounting frame 12 includes a first frame 12a and a second frame 12b. The first frame 12a includes a first frame 121, a second frame 122, and a third frame 123 that are bent and connected in sequence. One end of the second frame 12b is connected and fixed to an end of the first frame 121 away from the second frame 122, and the other end of the second frame 12b is connected and fixed to an end of the third frame 123 away from the second frame 122. The second frame 12b, the first frame 121, the second frame 122, and the third frame 123 are enclosed to form an annular frame, and the annular frame is sleeved on the outer periphery of the light board 11.

[0107] Therefore, during the actual installation process, the light board 11 can be first installed between the first frame 121, the second frame 122 and the third frame 123, and then the second frame 12b can be connected and fixed to the first frame 121 and the third frame 123 respectively, so that the installation frame 12 can be mounted on the outer edge of the light board 11.

[0108] It is understandable that in the actual assembly process, the first frame 121, the second frame 122 and the third frame 123 may be first welded and fixed to the lamp board 11, and then the second frame 12b may be respectively connected and fixed to the first frame 121 and the third frame 123; or the second frame 12b may be first connected and fixed to the first frame 121 and the third frame 123, and then the first frame 121, the second frame 122 and the third frame 123 may be respectively welded and fixed to the lamp board 11, and the embodiments of the present application are not limited to this.

[0109] In some embodiments, one end of the second frame 12b is welded and fixed to one end of the first frame 121 away from the second frame 122, and the other end of the second frame 12b is welded and fixed to one end of the third frame 123 away from the second frame 122. Therefore, the first frame 12a and the second frame 12b of the installation frame 12 do not need to be screwed and fixed by screws, so as to simplify the installation of the installation frame 12.

[0110] In addition, since the lamp board 11 and the mounting frame 12 are also fixed by welding, the welding of the first frame 12a and the second frame 12b, and the welding of the mounting frame 12 and the light board 11 can be completed in one workstation and / or one step of the production line, so as to reduce the production cost of the backlight module 100 and the entire display device and improve production efficiency.

[0111] Exemplarily, the first frame body 12a and the second frame body 12b may be fixed by laser welding, and the mounting frame 12 and the light board 11 may be fixed by laser welding.

[0112] Of course, the first frame 12a and the second frame 12b may be fixed by welding in other ways, and the mounting frame 12 and the lamp board 11 may also be fixed by welding in other ways, which is not limited in the embodiment of the present application.

[0113] It can also be understood that, in some other implementations, the first frame 12a and the second frame 12b can also be screwed or clamped, and this embodiment of the present application does not limit this.

[0114] Please continue to refer to Fig. 9 and Fig.10 In some embodiments, the mounting frame 12 is provided with a first mounting groove 124 , the notch of the first mounting groove 124 faces the inner circumference of the mounting frame 12 , and the edge of the lamp panel 11 is inserted into the first mounting groove 124 .

[0115] For example, the first mounting groove 124 may be at least partially disposed on the first frame 121, the second frame 122, and the third frame 123. During the assembly of the backlight module 100, the light board 11 is inserted between the first frame 121 and the second frame 122 from the side of the first frame 12a away from the second frame 122 until the peripheral side edges of the light board 11 are respectively inserted into the first mounting grooves 124 on the first frame 121, the second frame 122, and the third frame 123.

[0116] The second frame 12b may also be provided with a first mounting groove 124, so that after the lamp board 11 is plugged into the first frame 12a, the second frame 12b may be fixed on the lamp board 11 through the first mounting groove 124, and then the second frame 12b and the first frame 12a may be welded and fixed to realize the assembly of the installation frame 12.

[0117] 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, the third surface 127 faces the inner peripheral side of the mounting frame 12 and forms a partial notch end surface of the first mounting groove 124, and the mounting frame 12 is welded and fixed to the lamp board 11 from at least one position of the second surface 126 and the third surface 127.

[0118] Then, in the process of welding the lamp board 11 and the mounting frame 12 , welding equipment can be used on the side where the second surface 126 of the mounting frame 12 is located to complete welding of all positions of the lamp board 11 and the mounting frame 12 at one time.

[0119] For example, the backlight module 100 is placed 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 board 11 to achieve welding and fixation of each side edge of the lamp board 11 in the circumferential direction to the mounting frame 12.

[0120] Of course, in some other implementations, the mounting frame 12 may be fixed by welding at least the first surface 125 and the lamp board 11 , and this embodiment of the present application does not limit this.

[0121] In some embodiments, when the mounting frame 12 is welded and fixed to the second surface 126 and the light board 11 , the thickness from 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.

[0122] It is understandable that when the thickness at the second surface 126 is too large, it will be difficult for the laser welding equipment to weld the mounting frame 12 and the lamp board 11 from the second surface 126, resulting in the inability to weld the mounting frame 12 and the lamp board 11 or the welding is not secure; when the thickness at the second surface 126 is too small, the laser will easily burn through the second surface 126 of the mounting frame 12, which will also result in the inability to weld the mounting frame 12 and the lamp board 11 or the welding is not secure.

[0123] Exemplarily, the thickness from 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 to the embodiments of the present application.

[0124] In some embodiments, the lamp board 11 includes a substrate and lamp beads disposed on the substrate. The mounting frame 12 is fixed to the substrate by welding.

[0125] In some embodiments, the material of the mounting frame 12 is the same as that of the substrate. Furthermore, the mounting frame 12 and the substrate have the same critical melting temperature and suitable welding temperature during welding, thereby improving the quality and reliability of welding between the mounting frame 12 and the substrate.

[0126] In some embodiments, the mounting frame 12 is made of aluminum, aluminum alloy, iron or iron alloy.

[0127] For example, the substrate and the mounting frame 12 may both be made of aluminum.

[0128] In some embodiments, the installation frame 12 is further provided with a second installation groove 128 , and the groove opening of the second installation groove 128 faces the inner circumference of the installation frame 12 .

[0129] The backlight module 100 further includes an optical film 13, the edge of which is inserted into the second mounting groove 128. The optical film 13 may include a diffuser, a light-homogenizing film, a brightness-enhancing film, a polarizing film, etc., which is not limited in the present embodiment.

[0130] In the description of this application, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more features. In the description of this application, the meaning of "plurality" is two or more, unless otherwise clearly and specifically defined.

[0131] In the above embodiments, the description of each embodiment has its own emphasis. For parts that are not described in detail in a certain embodiment, reference can be made to the relevant descriptions of other embodiments.

[0132] The embodiments, implementation methods and related technical features of the present application can be combined and replaced with each other without conflict.

[0133] The above are only preferred embodiments of the present application and do not constitute any form of limitation to the present application. However, any simple modifications, equivalent changes and modifications made to the above embodiments based on the technical essence of the present application without departing from the content of the technical solution of the present application are still within the scope of the technical solution of the present application.

Claims

1. A display device, characterized in that: include: A backlight module, the backlight module comprising a mounting frame and a light board, the mounting frame being arranged around the outer periphery of the light board, and multiple side edges of the mounting frame in the circumferential direction are provided with snap-fit ​​positions; and, A front frame is sleeved on the installation frame, and the front frame is engaged with all the engaging positions of the installation frame.

2. The display device according to claim 1, characterized in that Each side edge of the installation frame in the circumferential direction is provided with the clamping position, and the clamping position is extended along a side edge corresponding to the installation frame; and / or, The engaging position comprises a slot extending along a side edge corresponding to the installation frame; and / or, The installation frame is made of aluminum, aluminum alloy, iron or iron alloy.

3. The display device according to claim 1, characterized in that The engaging position comprises a first card slot and a second card slot, wherein the first card slot is located at one side of the second card slot along the thickness direction of the backlight module, and the notches of the first card slot and the second card slot are both facing the outer peripheral side of the installation frame; The front frame includes a first plug-in portion and a second plug-in portion, the first plug-in portion is plugged into the first card slot, the second plug-in portion is plugged into the second card slot, a first buckle is protruding from a side of the second plug-in portion close to or away from the first plug-in portion, and the first buckle is engaged with an inner wall of the second card slot to limit the second plug-in portion from exiting the second card slot.

4. The display device according to claim 3, characterized in that The front frame comprises: an annular wall, the annular wall surrounding the outer peripheral side of the installation frame; and, A front wall is connected to the annular wall and is located at the light-emitting side of the backlight module.

5. The display device according to claim 4, characterized in that The annular wall and the front wall are integrally formed.

6. The display device according to claim 4, characterized in that The front frame further comprises a connecting portion, which is respectively connected to the inner circumferential surface of the annular wall and the front wall, and the first plug-in portion and the second plug-in portion are both protrudingly arranged on a side of the connecting portion away from the annular wall.

7. The display device according to claim 6, characterized in that A first slot is formed between one end of the connecting portion away from the front wall and the inner circumferential surface of the annular wall, and the notch of the first slot faces away from the front wall; The display device further comprises a rear shell, an edge of which is plugged into the first slot, and the rear shell and the front frame are enclosed to form a mounting cavity for accommodating the backlight module.

8. The display device according to claim 7, characterized in that A first protrusion is convexly disposed on the inner circumferential surface of the annular wall. The first protrusion penetrates the rear shell to limit the rear shell from being separated from the first slot in a direction away from the front wall.

9. The display device according to claim 6, characterized in that The ring wall includes a ground side edge, a left side edge, a sky side edge and a right side edge connected end to end in sequence; There are multiple connecting parts, and the multiple connecting parts are arranged at intervals along the extending direction of the side edge of the ground; At least one of the left side, the top side and the right side is further provided with a third plug-in portion, and the third plug-in portion extends along the corresponding left side, the top side or the right side, and the third plug-in portion is plugged into the first card slot or the second card slot.

10. The display device according to claim 9, characterized in that The plug-in portion is plugged into the first card slot. The front frame is further provided with a fourth plug-in portion, which is located at one side of the third plug-in portion along the thickness direction of the backlight module and is plugged into the second card slot.

11. The display device according to claim 10, characterized in that The third plug-in portion is provided with a second buckle, and the second buckle is engaged with the inner wall of the first slot to prevent the third plug-in portion from being separated from the first slot; and / or, The front frame further includes a second protrusion, the second protrusion is connected to a side of the third plug-in portion away from the fourth plug-in portion, a second slot is formed between the second protrusion and the inner circumferential surface of the annular wall, the display device further includes a rear shell, an edge of the rear shell is plugged into the second slot, and the rear shell and the front frame are enclosed to form a mounting cavity for accommodating the backlight module; and / or, The display device also includes a rear shell, an edge of which is arranged on the inner peripheral side of the annular wall, and a first protrusion is convexly provided on the inner peripheral surface of the annular wall. The first protrusion passes through the rear shell to limit the rear shell from detaching from the front frame in a direction away from the front wall, and at least part of the first protrusion is located on a side of the third plug-in portion away from the fourth plug-in portion.

12. The display device according to any one of claims 1 to 11, characterized in that: Multiple side edges of the lamp panel are welded and fixed to the mounting frame.

13. The display device according to claim 12, characterized in that The mounting frame is provided with a first mounting groove, the notch of the first mounting groove faces the inner circumference of the mounting frame, and the edge of the lamp panel is inserted into the first mounting groove; Wherein, the mounting frame has a first surface, a second surface and a third surface connected in sequence, the first surface faces the outer peripheral side of the mounting frame, the third surface faces the inner peripheral side of the mounting frame and forms a partial notch end surface of the first mounting groove, and the mounting frame is welded and fixed to the lamp board from at least one position among the first surface, the second surface and the third surface.

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