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] This application relates to the field of display technology, and more particularly to a display device. Background Technology

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

[0003] In related technologies, display devices also include a front frame, and the backlight module is usually fixed to the front frame with screws. The screw method makes the assembly of the backlight module more difficult. Utility Model Content

[0004] This application provides a backlight module and a display device to facilitate the assembly of the display device.

[0005] In a first aspect, embodiments of this application provide a display device, including:

[0006] A backlight module, comprising a mounting frame and a lamp panel, the mounting frame being disposed around the outer periphery of the lamp panel, and multiple circumferential edges of the mounting frame having snap-fit ​​positions; and,

[0007] The front frame is fitted onto the mounting frame and engages with all the snap-fit ​​positions of the mounting frame.

[0008] In some embodiments, each side edge of the mounting frame in the circumferential direction is provided with a snap-fit ​​position, the snap-fit ​​position extending along the corresponding side edge of the mounting frame; and / or,

[0009] The locking position includes a slot extending along one side edge of the mounting frame; and / or

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

[0011] In some embodiments, the latching position includes a first latching slot and a second latching slot, the first latching slot being located on one side of the second latching slot along the thickness direction of the backlight module, and the openings of both the first latching slot and the second latching slot facing the outer periphery of the mounting frame;

[0012] The front frame includes a first insertion part and a second insertion part. The first insertion part is inserted into the first slot, and the second insertion part is inserted into the second slot. A first buckle protrudes from the side of the second insertion part that is close to or away from the first insertion part. The first buckle is engaged with the inner wall of the second slot to prevent the second insertion part from exiting the second slot.

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

[0014] Annular wall, the annular wall surrounding the outer periphery of the mounting frame; and,

[0015] The front wall is connected to the annular wall and is located on 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 connected to the inner circumferential surface of the ring wall and the front wall respectively, and the first insertion portion and the second insertion portion both protrude from the connecting portion on the side opposite to the ring wall.

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

[0019] The display device further includes a rear shell, the edge of which is inserted into the first slot, and the rear shell and the front frame together form a mounting cavity for accommodating the backlight module.

[0020] In some embodiments, the inner circumferential surface of the annular wall is provided with a first protrusion, which passes through the rear shell to restrict the rear shell from disengaging from the first slot in a direction away from the front wall.

[0021] In some embodiments, the annular wall includes a ground side, a left side, a top side, and a right side that are connected end to end in sequence;

[0022] The number of the connecting parts is multiple, and the multiple connecting parts are spaced apart along the extension direction of the ground side;

[0023] At least one of the left side, the top side, and the right side is further provided with a third insertion part, the third insertion part extending along the corresponding left side, the top side, or the right side, and the third insertion part being inserted into the first slot or the second slot.

[0024] In some embodiments, the plug-in portion is inserted into the first slot, and the front frame is further provided with a fourth plug-in portion, which 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 inserted into the second slot.

[0025] In some embodiments, the third insertion portion is provided with a second latch, which engages with the inner wall of the first slot to prevent the third insertion portion from disengaging from the first slot; and / or,

[0026] The front frame further includes a second protrusion connected to the side of the third insertion portion opposite to the fourth insertion 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 housing, the edge of which is inserted into the second slot. The rear housing and the front frame together form a mounting cavity for accommodating the backlight module; and / or

[0027] The display device further includes a rear shell, the edge of which is disposed on the inner circumferential side of the annular wall. A first protrusion is provided on the inner circumferential surface of the annular wall. The first protrusion passes through the rear shell to restrict the rear shell from detaching from the front frame in a direction away from the front wall. At least a portion of the first protrusion is located on the side of the third connector opposite to the fourth connector.

[0028] In some embodiments, the multiple edges of the lamp panel are welded and fixed to the mounting frame.

[0029] In some embodiments, the mounting frame is provided with a first mounting groove, the opening of the first mounting groove facing the inner periphery of the mounting frame, and the edge of the lamp panel is inserted into the first mounting groove.

[0030] 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 of the first surface, the second surface, and the third surface.

[0031] The beneficial effects of the embodiments of this application are as follows:

[0032] In this embodiment, the backlight module is snapped onto the front frame from multiple sides, eliminating the need for screw fixing between the backlight module and the front frame, thus facilitating the assembly of the display device. Attached Figure Description

[0033] To more clearly illustrate the technical solutions in the embodiments of this application, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0034] To gain a more complete understanding of this application and its beneficial effects, the following description will be provided in conjunction with the accompanying drawings, wherein the same reference numerals in the following description denote the same parts.

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

[0036] Figure 2 for Figure 1 The image shown is an exploded view of the device.

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

[0038] Figure 4 for Figure 3 A magnified view of the area at point X.

[0039] Figure 5 for Figure 2 A magnified view of the Z-axis.

[0040] Figure 6 for Figure 3 A magnified view of the area at point Y.

[0041] Figure 7 This is a schematic diagram of the backlight module according to an embodiment of this application.

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

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

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

[0045] Explanation of reference numerals in the attached figures:

[0046] 100. Backlight module;

[0047] 11. Lamp panel; 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. Snap-fit ​​position; 1291. First slot; 1292. Second slot; 13. Optical film;

[0048] 200. Front frame;

[0049] 201. First insertion part; 202. Second insertion part; 203. First latch; 204. Circumferential wall; 2041. Ground side; 2042. Left side; 2043. Top side; 2044. Right side; 205. Front wall; 206. Connecting part; 207. First slot; 208. First protrusion; 209. Third insertion part; 210. Second latch; 211. Fourth insertion part; 212. Second protrusion; 213. Second slot

[0050] 300, back cover;

[0051] 400. LCD module. Detailed Implementation

[0052] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of this application, and not all of them. All other embodiments obtained by those skilled in the art based on the embodiments of this application without creative effort are within the protection scope of this application.

[0053] In the embodiments of this application, it should be noted that, in this document, relational 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 any such actual relationship or order between these entities or operations.

[0054] Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

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

[0056] This application provides a display device to facilitate the 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 display function, such as a liquid crystal display panel, electronic paper, mobile phone, tablet computer, television, monitor, laptop computer, digital photo frame, navigator, etc. The specific structure of the display device is not limited in the embodiments of this application.

[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 lamp panel 11. The mounting frame 12 is disposed around the outer periphery of the lamp panel 11, and multiple edges of the mounting frame 12 in the circumferential direction are provided with snap-fit ​​positions 129. The front frame 200 is fitted onto the mounting frame 12, and the front frame 200 snaps into all the snap-fit ​​positions 129 of the mounting frame 12.

[0059] Furthermore, by snapping the front frame 200 onto the multiple edges of the mounting frame 12, the front frame 200 and the mounting frame 12 do not need to be screwed together, 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 illuminate the liquid crystal module 400 for display.

[0061] In some embodiments, the liquid crystal module 400 can be adhesively fixed to the mounting frame 12.

[0062] In some embodiments, the display device further includes a rear housing 300. A front frame 200 is at least partially mounted on the light-emitting side of the backlight module 100. A 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 housing 300 is connected to the front frame 200, and the rear housing 300 and the front frame 200 together form a mounting cavity for accommodating the backlight module 100.

[0063] Please continue to refer to this. 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-fit ​​position 129, which extends along the corresponding side edge of the mounting frame 12, thereby enabling each side edge of the front frame 200 to establish a stable and reliable connection with the mounting frame 12.

[0064] In some embodiments, the snap-fit ​​position 129 includes a snap-fit ​​groove extending along one side edge of the mounting frame 12. Furthermore, the longer snap-fit ​​groove structure allows for a larger contact area between the mounting frame 12 and the front frame 200, thereby improving the stability and reliability of the front frame 200 installation.

[0065] In some embodiments, the mounting frame 12 is made of aluminum, aluminum alloy, iron, or iron alloy. Therefore, the mounting frame 12 can be an extruded part, such as an aluminum extrusion or an aluminum alloy extrusion.

[0066] In the actual production process, the profile can be extruded using an extrusion process, thereby giving the profile the aforementioned slots, the first mounting slot 124, and the second mounting slot 128. Then, the profile undergoes CNC machining and bending operations to form the mounting frame 12.

[0067] In some embodiments, the latching position 129 includes a first latching slot 1291 and a second latching slot 1292. The first latching slot 1291 is located on one side of the second latching slot 1292 along the thickness direction of the backlight module 100. The openings of both the first latching slot 1291 and the second latching slot 1292 face the outer periphery of the mounting frame 12. The front frame 200 includes a first insertion portion 201 and a second insertion portion 202. The first insertion portion 201 is inserted into the first latching slot 1291, and the second insertion portion 202 is inserted into the second latching slot 1292.

[0068] Therefore, the front frame 200 can be inserted into the snap-fit ​​position 129 through the first plug-in part 201 and the second plug-in part 202 to increase the mating area between the front frame 200 and the mounting frame 12, thereby making the front frame 200 more stably fixed on the mounting frame 12.

[0069] In some embodiments, a first buckle 203 protrudes from the side of the second plug-in portion 202 that is close to or away from the first plug-in portion 201. The first buckle 203 engages with the inner wall of the second slot 1292 to restrict the second plug-in portion 202 from exiting the second slot 1292.

[0070] 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, 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 first buckle 203 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 first insertion part 201 and the second insertion part cannot detach from the first slot 1291 and the second slot 1292 corresponding to the mounting frame 12, and finally achieve the goal of clamping and fixing the front frame 200 to 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 on the light-emitting side of the backlight module 100.

[0072] Therefore, after the front frame 200 is fitted onto the mounting frame 12 via the ring wall 204, the LCD module 400 and the like can be clamped and fixed together by the mounting frame 12 and the front wall 205.

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

[0074] Understandably, in related technologies, the front frame 200 typically includes a U-shaped frame and a strip frame. The U-shaped frame is fixed to the left side of the backlight module 100 by screws on one side edge, the top side of the backlight module 100 by screws on one side edge, and the right side of the backlight module 100 by screws on one side edge. The strip frame is fixed to the ground side of the backlight module 100 by screws. Finally, the U-shaped frame and the strip frame are screwed together for fixation.

[0075] In this embodiment, the integrated ring wall 204 and front wall 205 allow the front frame 200 to be easily fitted onto the mounting frame 12 of the backlight module 100, making the assembly of the display device simpler.

[0076] For example, the front frame 200 is a one-piece molded structure. For instance, 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 connected to the inner peripheral surface of the annular wall 204 and the front wall 205 respectively. The first insertion portion 201 and the second insertion portion 202 are both protruding from the 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 part 206 to the annular wall 204 and the front wall 205 respectively. On this basis, the first insertion part 201 and the second insertion part 202 both protrude from the connecting part 206, which can make the front frame 200 more stably and reliably snapped onto the mounting frame 12.

[0079] Please continue to refer to this. Figure 5 In some embodiments, a first slot 207 is formed between the end of the connecting portion 206 away from the front wall 205 and the inner circumferential surface of the annular wall 204, with the opening of the first slot 207 facing away from the front wall 205. The edge of the rear shell 300 is inserted into the first slot 207. Furthermore, the connecting portion 206 can also be reused for connecting and fixing the rear shell 300 and the front frame 200, thus giving the front frame 200 a simple structural advantage.

[0080] In some embodiments, the inner circumferential surface of the annular wall 204 is provided with a first protrusion 208, which passes through the rear shell 300 to restrict the rear shell 300 from disengaging 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 part 206; on the other hand, the front frame 200 can restrict the edge of the rear shell 300 from disengaging from the first slot 207 through the first protrusion 208, thereby realizing the snap-fit ​​fixation between the front frame 200 and the rear shell 300, so that the front frame 200 and the rear shell 300 can be fixed without the use of screws, ultimately making the installation of the rear shell 300 simpler.

[0082] It is also understandable that the mounting frame 12 in the backlight module 100 has high strength to prevent deformation of the lamp board 11; and the rear shell 300, as the main carrier of the display device to install various components of the display device, also has high strength. Therefore, by setting the first protrusion 208, the connecting part 206, the first insertion part 201 and the second insertion part 202 and other protruding structures on the front frame 200, the characteristics of the front frame 200 being low in strength and easily deformable can be fully utilized to achieve the snap-fit ​​between the front frame 200 and the mounting frame 12 during the installation process, as well as the snap-fit ​​between the front frame 200 and the rear shell 300 during the installation process, ultimately giving the display device the advantage of easy assembly.

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

[0084] 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.

[0085] For example, electrical connectors may include COF (Chip On Flex), FPC (Flexible Printed Circuit), etc., but this application does not limit them.

[0086] Please continue to refer to this. Figure 6 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.

[0087] 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.

[0088] 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.

[0089] 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.

[0090] In some embodiments, the third insertion portion 209 is inserted into the first slot 1291, and the front frame 200 is further provided with a fourth insertion portion 211. The fourth insertion portion 211 is located on one side of the third insertion portion 209 along the thickness direction of the backlight module 100, and the fourth insertion portion 211 is inserted into the second slot 1292. Furthermore, by having the fourth insertion portion 211 inserted into the second slot 1292, the insertion area between the front frame 200 and the mounting frame 12 can be further increased, ultimately improving the stability of the insertion between the front frame 200 and the mounting frame 12.

[0091] In some embodiments, the front frame 200 further includes a second protrusion 212, which is connected to the side of the third insertion portion 209 opposite to the fourth insertion portion 211. A second slot 213 is formed between the second protrusion 212 and the inner peripheral surface of the annular wall 204, and the edge of the rear shell 300 is inserted into the second slot 213. This makes the connection between the rear shell 300 and the front frame 200 more stable.

[0092] As mentioned above, in some embodiments, the edge of the rear shell 300 is disposed on the inner circumferential side of the annular wall 204, and the inner circumferential surface of the annular wall 204 is provided with a first protrusion 208, which passes through the rear shell 300 to restrict the rear shell 300 from disengaging from the front frame 200 in a direction away from the front wall 205, such as restricting the edge of the rear shell 300 from disengaging from the second slot 213.

[0093] Therefore, at least part of the first protrusion 208 can be located on the side of the third insertion portion 209 opposite to the fourth insertion portion 211. This allows the portion of the front frame 200 near the front wall 205 to be snapped and fixed to the mounting frame 12 of the backlight module 100, and the portion of the front frame 200 away from the front wall 205 to be snapped and fixed to the rear shell 300, ultimately making the connection between the backlight module 100, the front frame 200, and the rear shell 300 more stable and reliable.

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

[0095] In this embodiment, the lamp board 11 is directly welded and fixed to the mounting frame 12. The mounting frame 12 can be directly connected and fixed to the outer shell of the display device or serve as part of the outer shell of the display device, thereby eliminating the need for screwing the lamp board 11 to the back plate and the back plate to the middle frame, thus facilitating the assembly of the lamp board 11.

[0096] In some embodiments, each edge of the lamp panel 11 is welded to the mounting frame 12 in the circumferential direction, thereby ensuring that each edge of the lamp panel 11 is stably and reliably fixed to the mounting frame 12. Furthermore, embodiments of this application can also prevent the lamp panel 11 from being fixed to the mounting frame 12 by means of screws.

[0097] In some embodiments, the edge of the lamp panel 11 includes 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 to 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 to the mounting frame 12.

[0098] In this application's embodiments, "multiple" refers to two or more. Therefore, in this application's embodiments, "multiple" can also be understood as "at least two." "At least one" can be understood as one or more, such as one, two, or more. For example, including at least one means including one, two, or more, and is not limited to which ones are included. For example, including at least one of A, B, and C could mean including A, B, C, A and B, A and C, B and C, or A and B and C.

[0099] Therefore, it is possible that only one long side 111 and one short side 112 are welded and fixed to the mounting frame 12, or that two long sides 111 and one short side 112 are welded and fixed to the mounting frame 12, or that one long side 111 and two short sides 112 are welded and fixed to the mounting frame 12, or that two long sides 111 and two short sides 112 are welded and fixed to the mounting frame 12. This application does not limit this.

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

[0101] Therefore, welding points 113 can be provided on both the long side 111 and the short side 112, so that the long side 111 and the short side 112 of the lamp board 11 are welded and fixed to the mounting 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 provided on the short side 112. Thus, by providing more welding points 113 on the longer side 111, the stability and reliability of the welding between the long side 111 and the mounting frame 12 can be ensured.

[0103] 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 this application embodiment does not limit this.

[0104] In some embodiments, the lamp panel 11 has multiple sets of welding points 113, which are welded and fixed to the mounting frame 12. Each set of welding points 113 includes at least two welding points 113, and the distance between two adjacent sets of welding points 113 is greater than the distance between two adjacent welding points 113 within the same set.

[0105] Furthermore, by performing at least two welds at each group of welding points 113, the stability and reliability of the welds at each group of welding points 113 can be guaranteed. At the same time, compared to the entire circumference of the lamp panel 11 which is easier to weld and fix to the lamp panel 11, the embodiments of this application can also reduce the difficulty and cost of welding the lamp panel 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 side frame 121, a second side frame 122, and a third side frame 123 that are bent and connected in sequence. One end of the second frame 12b is connected and fixed to the end of the first side frame 121 away from the second side frame 122, and the other end of the second frame 12b is connected and fixed to the end of the third side frame 123 away from the second side frame 122. The second frame 12b, the first side frame 121, the second side frame 122, and the third side frame 123 enclose to form an annular frame, which is fitted onto the outer periphery of the lamp panel 11.

[0107] Therefore, in the actual installation process, the light panel 11 can be installed between the first frame 121, the second frame 122 and the third frame 123 first, 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 mounting frame 12 can be fitted onto the outer periphery of the light panel 11.

[0108] It is understood that in the actual assembly process, the first frame 121, the second frame 122, and the third frame 123 can be welded and fixed to the lamp board 11 first, and then the second frame 12b can be connected and fixed to the first frame 121 and the third frame 123 respectively; or the second frame 12b can be connected and fixed to the first frame 121 and the third frame 123 respectively first, and then the first frame 121, the second frame 122, and the third frame 123 can be welded and fixed to the lamp board 11 respectively. This application embodiment does not limit this.

[0109] In some embodiments, one end of the second frame 12b is welded to the end of the first frame 121 away from the second frame 122, and the other end of the second frame 12b is welded to the end of the third frame 123 away from the second frame 122. Therefore, the first frame 12a and the second frame 12b of the mounting frame 12 do not need to be screwed together, thus simplifying the installation of the mounting frame 12.

[0110] 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.

[0111] 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.

[0112] 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.

[0113] 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.

[0114] Please continue to refer to this. Figure 9 and Figure 10 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.

[0115] 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.

[0116] 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.

[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, 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.

[0118] Therefore, during the welding process of 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 the welding of all positions of the lamp board 11 and the mounting frame 12 in one go.

[0119] For example, the backlight module 100 is placed with the second surface 126 of the mounting frame 12 facing upwards, 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 plate 11 to achieve welding and fixing of each side edge of the lamp plate 11 to the mounting frame 12.

[0120] Of course, in some other embodiments, the mounting frame 12 may be welded and fixed at least from the first surface 125 and the lamp plate 11, but this application embodiment does not limit this.

[0121] In some embodiments, when the mounting frame 12 is welded to the second surface 126 and the lamp panel 11, 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.

[0122] Understandably, when the thickness at the second surface 126 is too large, the laser welding equipment will have difficulty welding the mounting frame 12 to the lamp board 11 from the second surface 126, which will result in the mounting frame 12 and the lamp board 11 being unable to be welded and fixed or the weld being unreliable. When the thickness at the second surface 126 is too small, the laser is likely to burn through the second surface 126 of the mounting frame 12, which will also result in the mounting frame 12 and the lamp board 11 being unable to be welded and fixed or the weld being unreliable.

[0123] For example, 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, and this application embodiment does not limit this.

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

[0125] In some embodiments, the mounting frame 12 is made of the same material as the substrate. Furthermore, the critical melting temperature and suitable welding temperature of the mounting frame 12 and the substrate are the same during the welding process, thereby improving the quality and reliability of the 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, both the substrate and the mounting frame 12 can be made of aluminum.

[0128] In some embodiments, the mounting frame 12 is further provided with a second mounting groove 128, the opening of the second mounting groove 128 facing the inner periphery of the mounting frame 12.

[0129] The backlight module 100 also 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-diffusing plate, a brightness enhancement plate, and a polarizer, etc., which are not limited in this embodiment.

[0130] In the description of this application, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include one or more features. In the description of this application, "multiple" means two or more, unless otherwise explicitly specified.

[0131] In the above embodiments, the descriptions of each embodiment have different focuses. For parts not described in detail in a certain embodiment, please refer to the relevant descriptions in other embodiments.

[0132] The embodiments, implementation methods, and related technical features of this application can be combined and substituted for each other without conflict.

[0133] The above are merely preferred embodiments of this application and are not intended to limit this application in any way. Any simple modifications, equivalent changes, and alterations made to the above embodiments based on the technical essence of this application without departing from the scope of the technical solution of this application shall still fall within the scope of the technical solution of this application.

Claims

1. A display device, characterized in that, include: A backlight module, comprising a mounting frame and a lamp panel, the mounting frame being disposed around the outer periphery of the lamp panel, and multiple circumferential edges of the mounting frame having snap-fit ​​positions; and, The front frame is fitted onto the mounting frame and engages with all the snap-fit ​​positions of the mounting frame.

2. The display device according to claim 1, characterized in that, The mounting frame has a snap-fit ​​position on each side edge in the circumferential direction, and the snap-fit ​​position extends along the corresponding side edge of the mounting frame; and / or, The locking position includes a slot extending along one side edge of the mounting frame; and / or The mounting frame is made of aluminum, aluminum alloy, iron, or iron alloy.

3. The display device according to claim 1, characterized in that, The latching position includes a first latching slot and a second latching slot. The first latching slot is located on one side of the second latching slot along the thickness direction of the backlight module. The openings of the first latching slot and the second latching slot both face the outer periphery of the mounting frame. The front frame includes a first insertion part and a second insertion part. The first insertion part is inserted into the first slot, and the second insertion part is inserted into the second slot. A first buckle protrudes from the side of the second insertion part that is close to or away from the first insertion part. The first buckle is engaged with the inner wall of the second slot to prevent the second insertion part from exiting the second slot.

4. The display device according to claim 3, characterized in that, The front frame includes: Annular wall, the annular wall surrounding the outer periphery of the mounting frame; and, The front wall is connected to the annular wall and is located on 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 also includes a connecting portion, which is connected to the inner circumferential surface of the ring wall and the front wall respectively. The first insertion portion and the second insertion portion both protrude from the connecting portion on the side away from the ring wall.

7. The display device according to claim 6, characterized in that, A first slot is formed between the end of the connecting portion away from the front wall and the inner circumferential surface of the annular wall, and the opening of the first slot is away from the front wall. The display device further includes a rear shell, the edge of which is inserted into the first slot, and the rear shell and the front frame together form a mounting cavity for accommodating the backlight module.

8. The display device according to claim 7, characterized in that, The inner circumferential surface of the ring wall is provided with a first protrusion, which passes through the rear shell to restrict the rear shell from disengaging 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, a left side, a sky side, and a right side that are connected end to end in sequence; The number of the connecting parts is multiple, and the multiple connecting parts are spaced apart along the extension direction of the ground side; At least one of the left side, the top side, and the right side is further provided with a third insertion part, the third insertion part extending along the corresponding left side, the top side, or the right side, and the third insertion part being inserted into the first slot or the second slot.

10. The display device according to claim 9, characterized in that, The plug-in part is inserted into the first slot, and the front frame is also provided with a fourth plug-in part. The fourth plug-in part is located on one side of the third plug-in part along the thickness direction of the backlight module, and the fourth plug-in part is inserted into the second slot.

11. The display device according to claim 10, characterized in that, The third insertion portion is provided with a second latch, which engages with the inner wall of the first slot to prevent the third insertion portion from disengaging from the first slot; and / or, The front frame further includes a second protrusion connected to the side of the third insertion portion opposite to the fourth insertion 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 housing, the edge of which is inserted into the second slot. The rear housing and the front frame together form a mounting cavity for accommodating the backlight module; and / or The display device further includes a rear shell, the edge of which is disposed on the inner circumferential side of the annular wall. A first protrusion is provided on the inner circumferential surface of the annular wall. The first protrusion passes through the rear shell to restrict the rear shell from detaching from the front frame in a direction away from the front wall. At least a portion of the first protrusion is located on the side of the third connector opposite to the fourth connector.

12. The display device according to any one of claims 1 to 11, characterized in that, The multiple 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 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 of the first surface, the second surface, and the third surface.

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