Diffusion plate support, backlight module and display device

Abstract

The application provides a diffusion plate support, a backlight module and a display device. The diffusion plate support comprises a supporting column and a clamping seat. The supporting column has opposite supporting ends and a deformed end. The supporting ends are used for supporting a diffusion plate. The deformed end has a connecting end face facing away from the supporting ends. The clamping seat comprises a bottom plate and a connecting column. The bottom plate is opposite to the connecting end face at a distance. The connecting column is connected between the bottom plate and the connecting end face. A clamping groove for clamping a clamped part is formed between the connecting end face and the bottom plate. A deformed groove is arranged on the side of the bottom plate facing away from the supporting column. The deformed groove extends to the deformed end along the depth direction of the deformed groove. The deformed groove penetrates through the bottom plate, the connecting column and the two sides of the deformed end along the length direction of the deformed groove. In the width direction of the deformed groove, the maximum width of the deformed end is smaller than the maximum width of the bottom plate. The diffusion plate support provided by the application solves the technical problem that the existing diffusion plate support has a complex assembly process and affects the display effect.

Description

Technical Field

[0001] This application relates to the field of backlight module technology, and in particular to a diffuser plate bracket, a backlight module, and a display device. Background Technology

[0002] In traditional direct-lit backlight modules, the diffuser plate is placed above the lamp panel and supported by a mid-frame. However, the diffuser plate is relatively thin and there is a large space between it and the lamp panel. In order to prevent the diffuser plate from being recessed in the middle and affecting the module's image, a diffuser plate bracket is usually set between the diffuser plate and the lamp panel to support the diffuser plate.

[0003] However, when existing diffuser plate brackets are fixed to the lamp board or back plate, the assembly process is complex and the production cost is high. In addition, some diffuser plate brackets have a large coverage area on the lamp board surface, which makes it impossible to further increase the density of lamp beads on the lamp board, thus which is not conducive to improving the display effect of the display device. Summary of the Invention

[0004] This application provides a diffuser plate bracket to solve the technical problem that the existing diffuser plate bracket assembly process is complex and affects the display effect.

[0005] To achieve the above objectives, the diffuser plate support proposed in this application includes a support column and a snap-fit ​​seat. The support column has a supporting end and a deformable end, the supporting end being used to support the diffuser plate, and the deformable end having a connecting end face facing away from the supporting end. The snap-fit ​​seat includes a base plate and a connecting column, the base plate and the connecting end face being spaced apart and opposite to each other, the connecting column being connected between the base plate and the connecting end face, and a snap-fit ​​groove being formed between the connecting end face and the base plate for snapping with a component to be snapped in. A deformable groove is provided on the side of the base plate away from the support column, the deformable groove extending along its depth direction to the deformable end, and the deformable groove also penetrating both sides of the base plate, the connecting column, and the deformable end along its length direction. In the width direction of the deformable groove, the maximum width of the deformable end is less than the maximum width of the base plate.

[0006] Optionally, in one embodiment, the deformable end includes two deformable sub-ends, which are respectively located on both sides of the deformable groove; in the length direction of the deformable groove, each deformable sub-end has a groove on both sides of its circumferential surface, and the groove extends to the connecting end face; a snap-fit ​​protrusion is formed between the two grooves, and the snap-fit ​​protrusion is used to snap the snap-fit ​​component together with the base plate.

[0007] Optionally, in one embodiment, the support column further includes a guide portion connected between the support end and the deformable end, the guide portion having a conical structure; the snap-fit ​​protrusion has a pressure-bearing surface facing away from the deformable groove, the pressure-bearing surface being connected to the outer conical surface of the guide portion.

[0008] Optionally, in one embodiment, the pressure-bearing surface is inclined, and the inclination angle of the pressure-bearing surface is the same as the inclination angle of the outer conical surface.

[0009] Optionally, in one embodiment, the support column further includes a guide portion connected between the support end and the deformable end, the guide portion having a conical structure; the snap-fit ​​protrusion protrudes relative to the outer conical surface and has a pressure-bearing surface facing away from the deformable groove; a guide inclined block protrudes from the guide portion, the guide inclined block having a guide surface, the guide surface being inclined relative to the outer conical surface, and one end connecting to the outer conical surface and the other end connecting to the pressure-bearing surface.

[0010] Optionally, in one embodiment, the difference between the tilt angle of the guide surface and the tilt angle of the outer conical surface is no greater than 5°.

[0011] Optionally, in one embodiment, the deformation groove has a groove bottom located at the boundary between the deformation end and the guide portion; the pressure-bearing surface extends along the height direction of the support column and has a connecting side that connects with the outer conical surface or the guide surface; in the height direction of the support column, the height of the connecting side is lower than the height of the groove bottom.

[0012] Optionally, in one embodiment, the support column has a conical structure, and on both sides of the deformable end in the length direction of the deformation groove, there are tangential planes or clearance grooves.

[0013] This application also proposes a backlight module, which includes a back plate, a lamp plate, a diffuser plate, and a diffuser plate bracket as described in any of the above embodiments; the lamp plate is mounted on the back plate and is provided with a snap-fit ​​hole; the diffuser plate is located on the side of the lamp plate away from the back plate and is spaced apart from the lamp plate; the diffuser plate bracket is snap-fitted into the snap-fit ​​hole through the snap-fit ​​groove, the supporting end abuts against the diffuser plate, and the bottom plate abuts against the back plate.

[0014] Optionally, in one embodiment, the lamp panel has a front side for mounting lamp beads, and the front side is spaced apart from the connecting end face.

[0015] Optionally, in one embodiment, the lamp panel further has a back side opposite to the front side, and the back panel has a mounting surface facing the back side; the mounting surface is provided with a mounting groove, the mounting groove is provided corresponding to the base plate, the base plate is installed in the mounting groove, and the thickness of the base plate is not greater than the groove depth of the mounting groove, so that the back side of the lamp panel and the mounting surface of the back panel are in close contact with each other.

[0016] Optionally, in one embodiment, the thickness of the base plate is equal to the depth of the mounting groove, and the base plate has a support surface facing the connection end face, the support surface being in close contact with the back side of the lamp panel.

[0017] This application also proposes a display device, which includes the backlight module described in any of the above embodiments.

[0018] When the diffuser plate bracket provided in this application is applied to a backlight module, corresponding snap-fit ​​holes can be first set on the lamp plate, and the diameter of the snap-fit ​​holes should be smaller than the maximum width of the base plate before and after shrinkage and deformation. During assembly, simply pass the diffuser plate bracket through the snap-fit ​​holes on the lamp plate until the lamp plate snaps into the snap-fit ​​groove of the diffuser plate bracket to complete the installation of the diffuser plate bracket; during disassembly, simply deform the base plate towards the side where the deformation groove is located, so that the maximum width of the deformed end is smaller than the diameter of the snap-fit ​​hole, and the diffuser plate bracket can be removed. In other words, the diffuser plate bracket provided in this application is easy to assemble and disassemble, effectively solving the technical problem of the relatively complex assembly process of existing diffuser plate brackets.

[0019] Additionally, it can be understood that the snap-fit ​​groove on the diffuser plate bracket of this application is formed by the connection end face of the deformed end and the base plate at intervals. That is, the diffuser plate bracket directly restricts the diffuser plate from detaching from the lamp plate through the end face of its support column, thus eliminating the need to provide limiting plates, limiting blocks, etc. on the periphery of the support column. This helps to reduce the coverage area of ​​the diffuser plate bracket on the lamp plate.

[0020] Meanwhile, because the maximum width of the deformable end is less than the maximum width of the base plate in the width direction of the deformation groove, and the diameter of the snap-fit ​​hole on the lamp plate is less than the maximum width of the base plate before and after shrinkage deformation, the diffuser bracket needs to be inserted from the back (the side without LEDs) to the front (the side with LEDs) of the lamp plate during assembly. During this process, the deformable end of the support column passes through the snap-fit ​​hole and is squeezed and deformed by the snap-fit ​​hole until the deformable end passes through the snap-fit ​​hole and is located above the lamp plate. Due to the limitation of the maximum deformation amount, the maximum width of the deformable end cannot be too large, otherwise it cannot pass through the snap-fit ​​hole. That is, the structure of the diffuser bracket of this application limits the maximum width of its deformable end, so that the deformable end cannot be designed to be too large. This reduces the coverage area of ​​the diffuser bracket on the lamp plate, which is beneficial for application on lamp plates with a high LED density, or for increasing the LED density of existing lamp plates, thereby improving the display effect of the display device. In other words, the diffuser bracket of this application also effectively solves the technical problem that existing diffuser brackets affect the display effect. Attached Figure Description

[0021] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the description of the embodiments or the prior art 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 the structures shown in these drawings without creative effort.

[0022] Figure 1 This is a schematic diagram of the structure of one embodiment of the diffuser plate support of this application;

[0023] Figure 2 for Figure 1 Side view of the diffuser plate support;

[0024] Figure 3 This is a schematic diagram of another embodiment of the diffuser plate bracket of this application;

[0025] Figure 4 for Figure 3 Side view of the diffuser plate support;

[0026] Figure 5 This is a schematic diagram of another embodiment of the diffuser plate bracket of this application;

[0027] Figure 6 for Figure 5 Side view of the diffuser plate support;

[0028] Figure 7 This is a schematic diagram of another embodiment of the diffuser plate bracket of this application;

[0029] Figure 8 for Figure 7 Side view of the diffuser plate support;

[0030] Figure 9 This is a schematic diagram of the structure of an embodiment of the backlight module of this application;

[0031] Figure 10 This is an exploded view of the structure of another embodiment of the backlight module of this application.

[0032] Explanation of icon numbers:

[0033]

[0034]

[0035] The realization of the purpose, functional features and advantages of this application will be further explained in conjunction with the embodiments and with reference to the accompanying drawings. Detailed Implementation

[0036] 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 scope of protection of this application.

[0037] This application provides a diffuser plate bracket to solve the problem that the existing diffuser plate bracket assembly process is complex and affects the display effect. The following description is in conjunction with the accompanying drawings.

[0038] In the embodiments of this application, such as Figure 9 and Figure 10 As shown, the diffuser plate bracket 10 of this application is used in a backlight module 100. The backlight module 100 includes a back plate 110, a lamp plate 120, and a diffuser plate 130. The lamp plate 120 is mounted on the back plate 110, and the diffuser plate 130 is located on the side of the lamp plate 120 away from the back plate 110 and is spaced apart from the lamp plate 120. The diffuser plate 130 is supported by a middle frame around its perimeter. The diffuser plate bracket 10 of this application is mounted on the lamp plate 120 by snap-fit ​​and supports the middle position of the diffuser plate 130 to prevent the diffuser plate 130 from being recessed into the lamp plate 120. Therefore, when using the diffuser plate bracket 10 of this application, the lamp plate 120 or the back plate 110 needs to have corresponding snap-fit ​​holes 121.

[0039] like Figure 1 and Figure 2 As shown, the diffuser plate support 10 includes a support column 20, a snap-fit ​​seat 30, and a deformation groove 50. The support column 20 has opposing supporting ends 21 and deformable ends 23. The supporting ends 21 are used to support the diffuser plate 130, as shown... Figure 2 As shown, the deformable end 23 has a connecting end face 231 facing away from the supporting end 21. The snap-fit ​​seat 30 includes a base plate 31 and a connecting post 32. The base plate 31 and the connecting end face 231 are spaced apart and opposite to each other. The connecting post 32 is connected between the base plate 31 and the connecting end face 231. A snap-fit ​​groove 40 for snapping with the component to be snapped is formed between the connecting end face 231 and the base plate 31. The deformable groove 50 extends through both sides of the base plate 31, the connecting post 32 and the deformable end 23 along its length direction. In the width direction of the deformable groove 50, the maximum width of the deformable end 23 is less than the maximum width of the base plate 31.

[0040] For specific details, please refer to... Figure 1 , Figure 2 and Figure 9The support column 20 is generally conical in shape, and along its height, it is connected sequentially to a support end 21, a guide portion 22, and a deformable end 23. The support end 21 is hemispherical and supports the diffuser plate 130. The guide portion 22 is conical and guides the support column 20 when it passes through the snap-fit ​​hole 121 on the lamp plate 120. The guide portion 22 can guide directly through its conical surface, or it can be guided by an independent guide surface 2221 on its conical surface (see reference). Figure 7 (Structure of the structure). In addition, in this embodiment, in order to make it easier and faster for the support column 20 to pass through the snap-fit ​​hole 121 on the lamp plate 120, the maximum width of the support end 21 and the guide part 22 at any position in the width direction of the deformation groove 50 is smaller than the diameter of the snap-fit ​​hole 121. That is, the outer diameter of the support end 21 and the outer diameter of the guide part 22 are smaller than the diameter of the snap-fit ​​hole 121. This can avoid the support end 21 and the guide end from rubbing against the inner wall of the snap-fit ​​hole 121 or getting stuck in the snap-fit ​​hole 121, so that the support column 20 can pass through the snap-fit ​​hole 121 more quickly and improve the assembly efficiency.

[0041] The deformable end 23 is used to be squeezed and deformed by the snap-fit ​​hole 121 on the lamp plate 120 when it passes through the snap-fit ​​hole 121. After passing through the snap-fit ​​hole 121, it recovers its elastic deformation. After the deformable end 23 recovers its elastic deformation, its width is greater than the diameter of the snap-fit ​​hole 121, thereby restricting the diffuser plate support 10 from moving away from the diffuser plate 130 to maintain support for the diffuser plate 130. Specifically, the deformable end 23 has a conical or cylindrical structure, and in its natural state, its maximum outer diameter is greater than the inner diameter of the snap-fit ​​hole 121. Figure 4 As shown, because the deformation groove 50 extends through both sides of the deformation end 23 along its length, the deformation end 23 is divided into two deformation sub-ends 232. The two deformation sub-ends 232 are symmetrically arranged about the deformation groove 50. When the deformation end 23 passes through the snap-fit ​​hole 121 on the lamp plate 120, each deformation sub-end 232 deforms towards the side where the deformation groove 50 is located under the pressure of the snap-fit ​​hole 121. At this time, the outer diameter of the entire deformation end 23 is temporarily reduced, so that it can pass smoothly through the snap-fit ​​hole 121. After the entire deformation end 23 passes through the snap-fit ​​hole 121, the two deformation sub-ends 232 are no longer compressed and recover elastic deformation. At this time, each deformation sub-end 232 recovers deformation in the direction away from the other deformation end 232, so that the maximum outer diameter of the deformation end 23 is no less than the diameter of the snap-fit ​​hole 121, thereby keeping the support column 20 between the lamp plate 120 and the diffuser plate 130 and stably supporting the diffuser plate 130.

[0042] In this embodiment, as Figure 2As shown, the deformable end 23 has a connecting end face 231 facing away from the supporting end 21. After the supporting column 20 passes through the snap-fit ​​hole 121 on the lamp panel 120, the connecting end face 231 is located above the snap-fit ​​hole 121 and faces the front side 123 of the lamp panel 120 (please refer to...). Figure 10 To prevent the support column 20 from continuing to move towards the side where the diffuser plate 130 is located, please combine... Figure 1 and Figure 2 A snap-fit ​​seat 30 is connected to the connecting end face 231. The snap-fit ​​seat 30 includes a base plate 31 and a connecting post 32. The base plate 31 is spaced apart from the connecting end face 231. The connecting post 32 is connected between the base plate 31 and the connecting end face 231. A snap-fit ​​groove 40 for snapping with the lamp board 120 is formed between the connecting end face 231 and the base plate 31.

[0043] Specifically, the overall shape of the connecting column 32 and the base plate 31 is circular. Since the deformation groove 50 runs through both sides of the connecting column 32 and the base plate 31 along its length, the connecting column 32 is divided into two sub-connecting columns 321 and the base plate 31 is divided into two sub-base plates 311. One sub-connecting column 321 connects a deformation sub-end 232 and a sub-base plate 311. At this time, a sub-base plate 311 and a sub-connecting column 321 on it can be collectively referred to as a support foot of the support column 20. When the diffuser bracket 10 is applied to the backlight module 100, the support column 20 is supported on the back plate 110 by the two support feet. At least in the width direction of the deformation groove 50, both the deformable end 23 and the base plate 31 protrude relative to the connecting post 32, thus forming a snap-fit ​​groove 40 between the connecting end face 231 and the base plate 31. The plate portion surrounding the snap-fit ​​hole 121 on the lamp plate 120 extends into the snap-fit ​​groove 40, thereby achieving the snap-fit ​​installation of the diffuser plate bracket 10 on the lamp plate 120. When disassembly is required, it is only necessary to deform the two sub-base plates 311 towards the side where the deformation groove 50 is located. Because each deformable sub-end 232 is connected to a sub-base plate 311 through a sub-connecting post 321, the two deformable sub-ends 232 will also deform towards the side where the deformation groove 50 is located until the outer diameter of the deformable end 23 is temporarily smaller than the diameter of the snap-fit ​​hole 121, at which point the entire diffuser plate bracket 10 can be removed, which is very convenient and quick.

[0044] It is understandable that, since the snap-fit ​​groove 40 is formed by the connection end face 231 of the deformed end 23 and the base plate 31, the diffuser plate bracket 10 of this application directly restricts the diffuser plate 130 from detaching from the lamp plate 120 through the end face of its support column 20. Therefore, it is not necessary to provide a limiting plate, limiting block, etc. on the periphery of the support column 20. This is beneficial to reduce the coverage area of ​​the diffuser plate bracket 10 on the lamp plate 120.

[0045] Additionally, in this embodiment, please refer to... Figure 1 and Figure 2 In the width direction of the deformation groove 50, the maximum width of the deformable end 23 is less than the maximum width of the base plate 31. Specifically, taking the overall shape of the deformable end 23 as a cone or cylinder and the overall shape of the base plate 31 as a cylinder as an example, the maximum outer diameter of the deformable end 23 is less than the outer diameter of the base plate 31. In this case, in the width direction of the deformation groove 50, the width of the deformable end 23 at any position is less than the width of the base plate 31 at the corresponding position. Therefore, when the diffuser plate bracket 10 of this application is applied to the backlight module 100, the base plate 31, because of its large area, can serve as a load-bearing component of the diffuser plate bracket 10. The weight of the diffuser plate 130 is transferred to the base plate 31 through the support column 20 and the connecting column 32. The base plate 31 then abuts against the back plate 110, and ultimately the weight of the diffuser plate 130 is supported by the back plate 110.

[0046] With the base plate 31 serving as a load-bearing component, the deformable end 23 only needs to restrict the entire diffuser plate support 10 away from the diffuser plate 130, without needing to abut against the lamp plate 120, thus preventing the lamp plate 120 from being dented due to stress and affecting the display effect. Furthermore, because the surface area of ​​the deformable end 23 is small, the coverage area of ​​the support column 20 on the lamp plate 120 is also small, which helps to increase the density of LEDs on the lamp plate 120, thereby improving the display effect of the display device.

[0047] It can also be understood that, because the maximum width of the deformable end 23 in the width direction of the deformation groove 50 is less than the maximum width of the base plate 31, and the diameter of the snap-fit ​​hole 121 on the lamp plate 120 is less than the maximum width of the base plate 31 before and after shrinkage and deformation, during assembly, the diffuser plate bracket 10 needs to be passed from the back side 124 (the side without lamp beads 122) of the lamp plate 120 to the front side 123 (the side with lamp beads 122) of the lamp plate 120. During this process, the deformable end 23 of the support column 20 passes through the snap-fit ​​hole 121 and is squeezed and deformed by the snap-fit ​​hole 121 until the deformable end 23 passes through the snap-fit ​​hole 121 and is located above the lamp plate 120. Due to the limitation on the maximum deformation, the maximum width of the deformable end 23 cannot be too large; otherwise, it will not be able to pass through the snap-fit ​​hole 121 after being squeezed and deformed. In other words, the structure of the diffuser plate bracket 10 in this application limits the maximum width of its deformable end 23, preventing it from being designed too large. This reduces the coverage area of ​​the diffuser plate bracket 10 on the lamp board 120, which is beneficial for its application on lamp boards 120 with higher LED density, or for increasing the LED density of existing lamp boards 120, thereby improving the display effect of the display device. In other words, the diffuser plate bracket 10 in this application also effectively solves the technical problem that existing diffuser plate brackets 10 affect the display effect.

[0048] It should be noted that the statement "the overall shape of the deformable end 23 is a cone" does not limit the surface of the deformable end 23 to a uniform and complete conical surface. The surface of the deformable end 23 can be provided with some grooves, protrusions, steps, etc., but its overall shape is still closest to a cone, that is, the overall shape is a cone. For statements such as "the overall shape of the deformable end 23 is a cylinder" and "the overall shape of the connecting column 32 and the base plate 31 are both circular structures", please refer to the above explanation. In addition, it should be noted that the "maximum deformation amount" refers to the limit deformation amount that the diffuser plate support 10 will not reach irreversible deformation or breakage, which is related to the width of the deformation groove 50, the material of the diffuser plate support 10, etc.

[0049] Optionally, in one embodiment, please combine Figure 3 and Figure 4 The deformable end 23 includes two deformable sub-ends 232, which are located on both sides of the deformable groove 50. In the length direction of the deformable groove 50, each deformable sub-end 232 has a groove 233 on both sides of its circumferential surface, and the groove 233 extends to the connecting end face 231. A snap-fit ​​protrusion 234 is formed between the two grooves 233, and the snap-fit ​​protrusion 234 is used to snap the snap-fit ​​component together with the base plate 31.

[0050] Specifically, in this embodiment, the support column 20 has a conical shape. The end with the larger outer diameter of the support column 20 is the deformable end 23. The deformable groove 50 extends through both sides of the deformable end 23 along its length and is centrally located, thus dividing the deformable end 23 into two deformable sub-ends 232. The two deformable sub-ends 232 are symmetrically arranged about the deformable groove 50. Each deformable sub-end 232 has a groove 233 on both sides, which extends to the connecting end face 231. A snap-fit ​​protrusion 234 is formed between the two grooves 233 on the same deformable sub-end 232. It can be understood that because the groove 233 extends to the connecting end face 231, the area of ​​the connecting end face 231 is reduced, which also reduces the coverage area of ​​the support column 20 on the lamp plate 120. At this time, the coverage area of ​​the support column 20 on the lamp plate 120 is at most the area of ​​the end face of the snap-fit ​​protrusion 234 facing the base plate 31. This is beneficial to improving the LED density on the lamp plate 120 and the display effect of the display device. At the same time, the snap-fit ​​protrusion 234 also ensures the stable snap-fit ​​of the diffuser plate bracket 10 on the lamp plate 120, and avoids the situation where the diffuser plate bracket 10 is easily detached from the lamp plate 120 in the direction away from the diffuser plate 130 after the groove 233 is opened.

[0051] Therefore, by providing a groove 233 on the surface of each deformable end 232 and forming a snap-fit ​​protrusion 234 between the two grooves 233, this embodiment can not only reduce the coverage area of ​​the diffuser bracket 10 on the lamp plate 120, but also avoid affecting the stable snap-fit ​​of the diffuser bracket 10.

[0052] Optionally, in one embodiment, such as Figures 3 to 6 As shown, the support column 20 further includes a guide portion 22 connecting the support end 21 and the deformable end 23, the guide portion 22 having a conical structure; the snap-fit ​​protrusion 234 has a pressure-bearing surface 2341 facing away from the deformation groove 50, the pressure-bearing surface 2341 being connected to the outer conical surface 221 of the guide portion 22. Specifically, in this embodiment, when the diffuser plate bracket 10 is snap-fitted onto the lamp plate 120, the support end 21, guide portion 22, and deformable end 23 of the support column 20 sequentially pass through the snap-fit ​​hole 121 on the lamp plate 120. Therefore, the guide portion 22 is set as a conical structure, and the pressure-bearing surface 2341 of the snap-fit ​​protrusion 234 is connected to the outer conical surface 221 of the guide portion 22. This facilitates the smooth sliding of the two snap-fit ​​protrusions 234 into the snap-fit ​​hole 121 and their deformation by the snap-fit ​​hole 121, thereby improving assembly efficiency.

[0053] The pressure-bearing surface 2341 of the snap-fit ​​protrusion 234 can be an inclined surface, for example, optionally, in one embodiment, such as... Figure 3 and Figure 4 As shown, the pressure-bearing surface 2341 is inclined, and the inclination angle of the pressure-bearing surface 2341 is the same as the inclination angle of the outer conical surface 221. This makes the connection between the pressure-bearing surface 2341 and the conical surface smoother, and reduces the likelihood of jamming during the process of the support column 20 passing through the snap-fit ​​hole 121, thus improving assembly efficiency. Of course, as Figure 5 and Figure 6 As shown, the pressure surface 2341 of the snap-fit ​​protrusion 234 can also be a vertically extending (non-inclined) arc surface or plane. In this way, while ensuring stable snap-fit, the coverage area of ​​the support column 20 on the lamp board 120 can be further reduced, which is conducive to improving the density of lamp beads on the lamp board 120 and the display effect of the display device.

[0054] Optionally, in one embodiment, such as Figure 7 and Figure 8As shown, the support column 20 further includes a guide portion 22 connecting the support end 21 and the deformable end 23. The guide portion 22 has a conical structure. The snap-fit ​​protrusion 234 protrudes relative to the outer conical surface 221 and has a pressure-bearing surface 2341 facing away from the deformable groove 50. A guide inclined block 222 protrudes from the guide portion 22. The guide inclined block 222 has a guide surface 2221. The guide surface 2221 is inclined relative to the outer conical surface 221, and one end is connected to the outer conical surface 221, while the other end is connected to the pressure-bearing surface 2341.

[0055] Specifically, in this embodiment, the volume of the guide portion 22 is smaller than that of the guide portion 22 in the previous embodiment. At this time, the snap-fit ​​protrusion 234 protrudes relative to the outer conical surface 221 of the guide portion 22. Therefore, to prevent the snap-fit ​​protrusion 234 from getting stuck in the snap-fit ​​hole 121 of the lamp plate 120 during assembly, two guide ramps 222 are provided on the outer conical surface 221 of the guide portion 22, each guide ramp 222 corresponding to one snap-fit ​​protrusion 234. The guide ramp 222 has an inclined guide surface 2221. One end of the guide surface 2221 connects to the outer conical surface 221 of the guide portion 22, and the other end connects to the pressure surface 2341 of the snap-fit ​​protrusion 234. Thus, under the guiding action of the guide surface 2221, the snap-fit ​​protrusion 234 can pass more smoothly through the snap-fit ​​hole 121 on the lamp plate 120. It is understandable that the structure in which the snap-fit ​​protrusion 234 is guided by the guide wedge 222 not only prevents the snap-fit ​​protrusion 234 from getting stuck in the snap-fit ​​hole 121 of the lamp plate 120, but also greatly reduces the volume and weight of the diffuser bracket 10, thereby saving costs and making the backlight module 100 and the display device lighter.

[0056] Regarding the specific size of the guide ramp 222, in one specific embodiment, as follows: Figure 7 As shown, the snap-fit ​​protrusion 234 is an arc-shaped block, and the arc length of the guide ramp 222 is equal to the arc length of the snap-fit ​​protrusion 234. In this way, while ensuring the guiding effect of the guide ramp 222 on the snap-fit ​​protrusion 234, the overall size of the guide ramp 222 is smaller, which makes the entire diffuser plate bracket 10 simpler and lighter.

[0057] Regarding the tilt angle of the guide surface 2221 on the guide ramp 222, optionally, in one embodiment, the difference between the tilt angle of the guide surface 2221 and the tilt angle of the outer conical surface 221 is no greater than 5°. Because the engaging protrusion 234 protrudes relative to the conical surface of the guide portion 22, the guide surface 2221 of the guide ramp 222 needs to be tilted outward relative to the outer conical surface 221 of the guide portion 22, with an tilt angle no greater than 5°, which can be 3°, 3.5°, 4°, 4.5°, 5°, etc. It can be understood that if the tilt angle of the guide surface 2221 is too large, the guide stroke will be too small, and the engaging protrusion 234 will still be relatively easy to engage in the engaging hole 121 of the lamp plate 120; if the tilt angle of the guide surface 2221 is too small, the extension length of the guide ramp 222 will be too long, resulting in a larger volume of the support column 20. Therefore, in this embodiment, when the difference between the tilt angle of the guide surface 2221 and the tilt angle of the outer conical surface 221 of the guide portion 22 is no greater than 5°, it can ensure that the snap-fit ​​protrusion 234 passes through the snap-fit ​​hole 121 on the lamp plate 120 more smoothly, and also avoid the guide inclined block 222 and the support column 20 from being too large.

[0058] Optionally, in one embodiment, please combine Figure 5 and Figure 6 The deformation groove 50 has a groove bottom 51, which is located at the boundary between the deformation end 23 and the guide portion 22; the pressure-bearing surface 2341 extends along the height direction of the support column 20 and has a connecting side 2342 that connects with the outer conical surface 221 or the guide surface 2221; in the height direction of the support column 20, the height of the connecting side 2342 is lower than the height of the groove bottom 51.

[0059] Specifically, in this embodiment, the depth direction of the deformation groove 50 is the height direction of the entire diffuser plate bracket 10 or support column 20. The bottom 51 of the deformation groove 50 is located at the boundary between the deformation end 23 and the guide part 22, so the deformation end 23 can be squeezed and deformed, while the guide part 22 will not be squeezed and deformed or is difficult to squeeze and deform. The deformation end 23 is divided into two deformation sub-ends 232 by the deformation groove 50. Each deformation sub-end 232 is provided with a snap-fit ​​protrusion 234. The snap-fit ​​protrusion 234 has a pressure-bearing surface 2341. When the diffuser plate bracket 10 is inserted into the snap-fit ​​hole 121 on the lamp plate 120, the pressure-bearing surface 2341 of each snap-fit ​​protrusion 234 is squeezed by the inner wall of the snap-fit ​​hole 121, thereby causing the snap-fit ​​protrusion 234 to deform towards the side where the deformation groove 50 is located.

[0060] In this embodiment, in order to further reduce the coverage area of ​​the support column 20 on the lamp panel 120, the pressure surface 2341 of the snap-fit ​​protrusion 234 extends along the height direction of the support column 20. That is, the pressure surface 2341 is not an inclined conical surface, but a vertically extending plane or arc surface. At this time, the pressure surface 2341 has a connecting side 2342 that connects with the outer conical surface 221 of the guide portion 22 or the guide surface 2221 of the guide inclined block 222. In this embodiment, the height of the connecting side 2342 is lower than the height of the bottom 51 of the deformation groove 50. It can be understood that because the bottom 51 of the deformation groove 50 is located at the boundary between the deformation end 23 and the guide portion 22, the boundary between the deformation end 23 and the guide portion 22 is difficult to be squeezed and deformed. Therefore, when the height of the pressure surface 2341 is lower than the height of the groove bottom 51, it can be ensured that each position on the snap-fit ​​protrusion 234 can deform towards the side where the deformation groove 50 is located, thereby ensuring that the support column 20 can pass smoothly through the snap-fit ​​hole 121 on the lamp plate 120, avoiding the situation that the snap-fit ​​cannot be successfully snapped because the connecting side 2342 of the snap-fit ​​protrusion 234 is difficult to be squeezed and deformed.

[0061] Optionally, in one embodiment, such as Figure 1 and Figure 3 As shown, the support column 20 has a conical structure, and along the length of the deformation groove 50, the two sides of the deformable end 23 are provided with clearance cutting planes 235 or clearance grooves 236. Specifically, as... Figure 1 and Figure 2 As shown, because the deformable end 23 can be temporarily compressed on both sides in the width direction of the deformation groove 50, but cannot be temporarily compressed on both sides in the length direction of the deformation groove 50, the deformable end 23 cannot pass through the snap-fit ​​hole 121. Therefore, by providing clearance cutting planes 235 or clearance grooves 236 on both sides of the deformable end 23 in the length direction of the deformation groove 50, the maximum width of the deformable end 23 in the length direction of the deformation groove 50 can be made smaller than the diameter of the snap-fit ​​hole 121. Thus, even if the deformable end 23 cannot be temporarily compressed on both sides in the length direction of the deformation groove 50, it can still pass smoothly through the snap-fit ​​hole 121 on the lamp plate 120.

[0062] like Figure 9 and Figure 10As shown, this application also proposes a backlight module 100, which includes a back plate 110, a lamp plate 120, a diffuser plate 130, and a diffuser plate bracket 10 as described in any of the above embodiments. The back plate 110 is used to support and mount other components in the backlight module 100, such as the lamp plate 120, a light guide plate, a control board, etc. The lamp plate 120 is mounted on the back plate 110 and is provided with snap-fit ​​holes 121. The snap-fit ​​holes 121 are circular through holes that penetrate the lamp plate 120 along its thickness direction. The specific number and position of the snap-fit ​​holes 121 can be designed according to actual conditions. The diffuser plate 130 is located on the side of the lamp plate 120 opposite to the back plate 110 and is spaced apart from the lamp plate 120 to uniformly diffuse the light emitted from the lamp plate 120 and improve the display effect of the display device. The diffuser plate bracket 10 is snapped into the snap-fit ​​hole 121 through the snap-fit ​​groove 40. The support end 21 abuts against the diffuser plate 130, thereby supporting the diffuser plate 130. The bottom plate 31 abuts against the back plate 110, thereby providing sufficient support for the diffuser plate bracket 10 through the back plate 110. Since the backlight module 100 of this application adopts all the technical solutions of all the above embodiments, it has at least all the beneficial effects brought by the technical solutions of the above embodiments, which will not be described in detail here.

[0063] Optionally, in one embodiment, please combine Figure 9 and Figure 10 The lamp plate 120 has a front surface 123 for mounting lamp beads 122. The front surface 123 is spaced apart from the connecting end face 231. That is, the connecting end face 231 of the support column 20 does not abut against the lamp plate 120. The lamp plate 120 is only used to limit the position of the diffuser plate bracket 10 and does not participate in supporting the diffuser plate 130. As a result, the weight of the diffuser plate 130 will not be transmitted to the lamp plate 120 through the diffuser plate bracket 10, thus avoiding the situation where the lamp plate 120 is dented at the diffuser plate bracket 10 due to force, and ensuring the display effect of the display device.

[0064] Optionally, in one embodiment, please combine Figure 9 and Figure 10 The lamp panel 120 also has a back surface 124 opposite to the front surface 123. The back panel 110 has a mounting surface 111 facing the back surface 124. The mounting surface 111 is provided with a mounting groove 112, which corresponds to the base plate 31. The base plate 31 is installed in the mounting groove 112, and the thickness of the base plate 31 is not greater than the depth of the mounting groove 112, so that the back surface 124 of the lamp panel 120 and the mounting surface 111 of the back panel 110 are in close contact with each other. This can ensure the flatness of the lamp panel 120 and avoid the lamp panel 120 from being suspended or recessed, thus preventing shadows.

[0065] Optionally, in one embodiment, please combine Figure 9 and Figure 10 The thickness of the base plate 31 is equal to the depth of the mounting groove 112. The base plate 31 has a support surface 312 facing the connecting end face 231, and the support surface 312 is in close contact with the back surface 124 of the lamp plate 120. That is, the position on the lamp plate 120 corresponding to the mounting groove 112 can be supported by the base plate 31, thereby preventing the position on the lamp plate 120 corresponding to the mounting groove 112 from being recessed and affecting the display effect.

[0066] This application also proposes a display device, which includes the backlight module described in any of the above embodiments. The specific structure of the backlight module is as described in the above embodiments. Since this display device adopts all the technical solutions of all the above embodiments, it has at least all the beneficial effects brought about by the technical solutions of the above embodiments, which will not be described in detail here.

[0067] In the above embodiments, the descriptions of each embodiment have different focuses. Parts not described in detail in a particular embodiment can be referred to in the relevant descriptions of other embodiments. 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 indicated technical features. Therefore, features defined with "first" and "second" may explicitly or implicitly include one or more features.

[0068] The diffusion plate support provided in the embodiments of this application has been described in detail above. Specific examples have been used to illustrate the principles and implementation methods of this application. The description of the above embodiments is only for the purpose of helping to understand the method and core ideas of this application. At the same time, for those skilled in the art, there will be changes in the specific implementation methods and application scope based on the ideas of this application. Therefore, the content of this specification should not be construed as a limitation of this application.

Claims

1. A diffuser plate support, characterized in that, include: A support column has opposing support ends and deformable ends, the support ends being used to support a diffuser plate, and the deformable ends having a connecting end face facing away from the support ends; as well as, A snap-fit ​​base includes a base plate and a connecting post. The base plate is spaced apart from the connecting end face, and the connecting post is connected between the base plate and the connecting end face. A snap-fit ​​groove for snapping with a component to be snapped is formed between the connecting end face and the base plate. The base plate has a deformation groove on the side opposite to the support column. The deformation groove extends along its depth direction to the deformation end. The deformation groove also penetrates both sides of the base plate, the connecting column, and the deformation end along its length direction. In the width direction of the deformation groove, the maximum width of the deformation end is less than the maximum width of the base plate. The deformable end includes two deformable sub-ends, which are respectively located on both sides of the deformable groove; in the length direction of the deformable groove, each deformable sub-end has a groove on both sides of its circumferential surface, and the groove extends to the connecting end face; a snap-fit ​​protrusion is formed between the two grooves, and the snap-fit ​​protrusion is used to snap the snap-fit ​​component together with the base plate; The support column further includes a guide portion connecting the support end and the deformable end, the guide portion having a conical structure; Wherein, the snap-fit ​​protrusion has a pressure-receiving surface facing away from the deformation groove, and the pressure-receiving surface is connected to the outer conical surface of the guide portion; or, the snap-fit ​​protrusion protrudes relative to the outer conical surface of the guide portion and has a pressure-receiving surface facing away from the deformation groove, and a guide inclined block is protruding on the guide portion, the guide inclined block has a guide surface, the guide surface is inclined relative to the outer conical surface, and one end of the guide surface is connected to the outer conical surface, and the other end is connected to the pressure-receiving surface; The support column has a conical structure, and in the length direction of the deformation groove, the two sides of the deformation end are provided with a clearance cutting plane or a clearance groove.

2. The diffuser plate support as described in claim 1, characterized in that, When the pressure-bearing surface is connected to the outer conical surface of the guide portion, the pressure-bearing surface is inclined, and the inclination angle of the pressure-bearing surface is the same as the inclination angle of the outer conical surface.

3. The diffuser plate support as described in claim 1, characterized in that, When one end of the guide surface is connected to the outer conical surface and the other end is connected to the pressure surface, the difference between the inclination angle of the guide surface and the inclination angle of the outer conical surface is no greater than 5°.

4. The diffuser plate support as described in any one of claims 1-3, characterized in that, The deformation groove has a bottom located at the boundary between the deformation end and the guide portion; the pressure-bearing surface extends along the height direction of the support column and has a connecting side that connects with the outer conical surface or the guide surface. In the height direction of the support column, the height of the connecting side is lower than the height of the groove bottom.

5. A backlight module, characterized in that, include: Back panel; The light panel is mounted on the back panel and has snap-fit ​​holes; A diffuser plate is located on the side of the lamp panel opposite to the back plate and is spaced apart from the lamp panel; and, The diffuser plate bracket as described in any one of claims 1 to 4, wherein the diffuser plate bracket is snapped into the snap-fit ​​hole via the snap-fit ​​groove, the supporting end abuts against the diffuser plate, and the bottom plate abuts against the back plate.

6. The backlight module as described in claim 5, characterized in that, The lamp panel has a front side for mounting lamp beads, and the front side is spaced apart from the connecting end face.

7. The backlight module as described in claim 6, characterized in that, The lamp panel also has a back side opposite to the front side, and the back panel has a mounting surface facing the back side; The mounting surface is provided with a mounting groove, which corresponds to the base plate. The base plate is installed in the mounting groove, and the thickness of the base plate is not greater than the depth of the mounting groove, so that the back of the lamp panel is in close contact with the mounting surface of the back plate.

8. The backlight module as described in claim 7, characterized in that, The thickness of the base plate is equal to the depth of the mounting groove, and the base plate has a support surface facing the connection end face, the support surface being in close contact with the back of the lamp panel.

9. A display device, characterized in that, Includes the backlight module as described in any one of claims 5 to 8.

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