Backlight module and display device

Abstract

The utility model provides a kind of backlight module and display device, the backlight module includes backplate and glue frame, backplate includes bottom plate and at least one support plate, support plate is bent and connected to bottom plate;Glue frame is set to the outer circumferential side of backplate, and glue frame covers the bent junction of support plate and bottom plate, to cover the crack possibly formed in the processing process of backplate, block outside water vapor, salt fog and other corrosive medium and invade the inside of backplate through crack channel;And / or, support plate and bottom plate are spliced and arranged, by eliminating bending processing process, to avoid crack in the junction of support plate and bottom plate, to improve the reliability and structural stability of backlight module.

Description

Technical Field

[0001] This utility model relates to the field of display technology, and in particular to a backlight module and display device. Background Technology

[0002] As the display industry places greater emphasis on environmental protection and resource recycling, recycled materials are gradually being incorporated into the frame and backplate of backlight modules to increase the proportion of recycled materials in the entire device and meet green manufacturing requirements.

[0003] In related technologies, because recycled materials need to undergo smelting, crushing and mixing during the recycling process, the original grain structure of metal materials is destroyed and the impurity content increases. The molecular chains of plastic materials are broken and unevenly distributed, which leads to a decrease in the tensile strength of the recycled metal back plate. Cracks distributed along the bending line are easily generated in the stamping and bending area. The fluidity of the recycled plastic frame increases and the thermal stability decreases. Uneven shrinkage, warping or breakage are likely to occur during injection molding. Utility Model Content

[0004] This utility model provides a backlight module and display device to block or eliminate cracks generated at the connection between the support plate and the base plate during bending processing, thereby improving the reliability and structural stability of the backlight module.

[0005] To achieve the above functions, the technical solution provided by this utility model embodiment is as follows: This utility model embodiment provides a backlight module, including: The back plate includes a base plate and at least one support plate, wherein the support plate is bent and connected to the base plate; The backlight module further includes a frame, which is disposed on the outer periphery of the back plate and covers the bending connection between the support plate and the base plate, and / or the support plate and the base plate are spliced ​​together.

[0006] Optionally, in one embodiment, the support plate includes a side plate and a bent portion, the extending direction of the side plate is perpendicular to the extending direction of the bottom plate, and the bent portion is connected between the bottom plate and the side plate; The adhesive frame is arranged around the outer periphery of the support plate and covers the bent portion.

[0007] Optionally, in one embodiment, the adhesive frame includes: A protective part is provided corresponding to the bent part, and the protective part covers the bent part; The first extension section is connected to one end of the protective part and extends from one end of the protective part to the side of the side plate away from the bottom plate; The second extension section is connected to the other end of the protective part and extends from the other end of the protective part to the side of the base plate away from the side plate.

[0008] Optionally, in one embodiment, the frame, the side plate, the bent portion, and the bottom plate are integrally formed from iron and plastic.

[0009] Optionally, in one embodiment, the support plate is spliced ​​with the base plate, the support plate is arranged around the outer periphery of the base plate, and the tensile strength of the support plate is greater than the tensile strength of the base plate.

[0010] Optionally, in one embodiment, the support plate includes a connecting plate, a bent portion, and a side plate. The connecting plate is spliced ​​with the base plate, and the bent portion is connected between the connecting plate and the side plate. The extending direction of the side plate is perpendicular to the extending direction of the base plate, and the extending direction of the connecting plate is parallel to the extending direction of the base plate.

[0011] Optionally, in one embodiment, the back plate includes two support plates, the two support plates including a first support plate and a second support plate, the first support plate being spliced ​​with the bottom plate, the second support plate being integrally formed with the bottom plate, the adhesive frame being disposed on the outer periphery of the second support plate, and the adhesive frame covering the bending connection between the second support plate and the bottom plate.

[0012] Optionally, in one embodiment, the tensile strength of the first support plate is greater than the tensile strength of the base plate, and the tensile strength of the second support plate is equal to the tensile strength of the base plate.

[0013] Optionally, in one embodiment, the second support plate, the plastic frame, and the base plate are integrally formed from iron and plastic.

[0014] This utility model provides a display device including any of the backlight modules described above.

[0015] The beneficial effects of this utility model embodiment are as follows: This utility model provides a backlight module and a display device. The backlight module includes a back plate and a frame. The back plate includes a base plate and at least one support plate. The support plate is bent and connected to the base plate. The frame is disposed on the outer periphery of the back plate and covers the bent connection between the support plate and the base plate to cover cracks that may be formed in the back plate during the processing, and to prevent external water vapor, salt spray and other corrosive media from penetrating into the back plate through the crack channels. And / or, the support plate and the base plate are spliced ​​together. By eliminating the bending process, cracks are avoided at the connection between the support plate and the base plate, thereby improving the reliability and structural stability of the backlight module in storage, transportation and salt spray, humid heat and other environments. Attached Figure Description

[0016] To more clearly illustrate the technical solutions in the embodiments of this utility model, the drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0017] Figure 1 This is a top view schematic diagram of the first type of backlight module provided in an embodiment of the present utility model; Figure 2 Provided for the embodiments of this utility model Figure 1 A schematic diagram of the cross section corresponding to AA' in the middle; Figure 3 This is a schematic diagram of a second top view of the backlight module provided in an embodiment of the present utility model. Figure 4 A top view schematic diagram of a third type of backlight module provided in an embodiment of this utility model; Figure 5 Provided for the embodiments of this utility model Figure 4 A schematic diagram of the cross section corresponding to BB' in the middle; Figure 6 This is a schematic diagram of a fourth top view of the backlight module provided in an embodiment of the present utility model; Figure 7 Provided for the embodiments of this utility model Figure 6 A schematic diagram of the cross section corresponding to CC' in the middle; Figure 8 This is a schematic diagram of the structure of the display device provided in an embodiment of the present utility model.

[0018] Explanation of reference numerals in the attached figures: 1-Backlight module; 10-Back panel; 100-Receiving cavity; 10A-First side; 10B-Second side; 10C-Third side; 10D-Fourth side; 11-Base plate; 12-Support plate; 121-Side plate; 122-Bending part; 123-Connecting plate; 12A-First support plate; 12B-Second support plate; 20-Light guide plate; 30-Optical film layer; 40-Frame; 41-Protective part; 42-First extension section; 43-Second extension section; 50-Light strip; X-First direction; Y-Second direction; 2-Display device; 21-Display panel; 22-Adhesive layer; 23-Housing. Detailed Implementation

[0019] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present utility model. In addition, it should be understood that the specific embodiments described herein are only for illustration and explanation of the present utility model and are not intended to limit the present utility model. In the present utility model, unless otherwise stated, directional terms such as "upper" and "lower" generally refer to the upper and lower in the actual use or working mode of the device, specifically the drawing direction in the accompanying drawings; while "inner" and "outer" refer to the outline of the device.

[0020] Furthermore, the terms "first" and "second" are used for descriptive purposes only, and features specified as "first" or "second" may explicitly or implicitly include one or more of the stated features. In the description of this utility model, "a plurality of" means two or more, unless otherwise explicitly specified.

[0021] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to fixed connections or detachable connections; mechanical connections or electrical connections or connections that allow for communication; direct connections or indirect connections through an intermediate medium; and connections within two components or interactions between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0022] The following disclosure provides many different embodiments for implementing various structures of this invention. To simplify the disclosure, specific examples of components and arrangements are described below. These are merely examples and are not intended to limit the scope of the invention. Furthermore, examples of various specific processes and materials are provided, but those skilled in the art will recognize the application of other processes and / or the use of other materials.

[0023] Please combine Figure 1 and Figure 2 This embodiment provides a backlight module 1, which includes a back plate 10, a light guide plate 20, an optical film layer 30, and a frame 40. The backlight module 1 is used to provide a uniform surface light source for the display panel 21 to ensure the brightness uniformity and display stability of the display module.

[0024] The back plate 10 includes a base plate 11 and at least one support plate 12, the support plate 12 being bent and connected to the base plate 11; specifically, the back plate 10 may include the base plate 11 and a plurality of support plates 12 extending along the edge of the base plate 11, the plurality of support plates 12 being arranged around the periphery of the base plate 11, thereby forming a receiving cavity 100 for mounting the display panel 21 between the base plate 11 and the plurality of support plates 12.

[0025] It is understood that by using multiple support plates 12 arranged around the base plate 11, the back plate 10 as a whole forms a box-like load-bearing frame structure, which can improve the mechanical strength and deformation resistance of the backlight module 1, and effectively prevent the displacement or warping of the display panel 21 during transportation, assembly and use, thereby ensuring the stability and display reliability of the display panel 21 and the back plate 10 after assembly.

[0026] The light guide plate 20 is disposed on one side of the base plate 11 and located within the receiving cavity 100. The light guide plate 20 is used to diffuse and homogenize the light emitted by the light source, so that the display panel 21 can obtain uniform backlight illumination. The light source can be a light strip 50, which is disposed on the side of the light guide plate 20. Through the cooperation of the light strip 50 and the light guide plate 20, the uniform distribution of light is achieved, thereby improving the brightness uniformity of the backlight module 1.

[0027] The optical film layer 30 is disposed on the side of the light guide plate 20 away from the base plate 11. The optical film layer 30 includes multiple optical films, including but not limited to one or more stacked combinations of diffuser sheets, prism sheets and brightness enhancement sheets, to achieve the effects of light diffusion, light focusing and light uniformity, thereby further improving the brightness uniformity of the backlight module 1.

[0028] The frame 40 is disposed on the outer periphery of the back plate 10, and the frame 40 covers the bending connection between the support plate 12 and the bottom plate 11, thereby covering the cracks that may occur in the back plate 10 during processing, preventing external water vapor, salt spray and other corrosive media from penetrating into the back plate 10 through the crack channels, thereby improving the corrosion resistance and reliability of the backlight module 1; in addition, the back plate 10 is at least partially embedded in the frame 40, and the back plate 10 provides support for the frame 40, making the frame 40 less prone to warping or breakage during assembly and use, thereby improving the rigidity and strength of the frame 40.

[0029] Please continue to combine Figure 1 and Figure 2In one embodiment, the material of the frame 40 includes, but is not limited to, recycled plastic material, which may be post-industrial recycled (PIR) plastic or post-consumer recycled (PCR) plastic; the material of the back plate 10 includes, but is not limited to, recycled sheet metal stamping material.

[0030] Industrial recycled plastics refer to plastic scraps or waste products generated during manufacturing and processing, which are recycled, cleaned, and granulated before being reused in production. Examples include leftover materials from injection molding, extrusion, or mold processing. Post-consumer recycled plastics, on the other hand, come from discarded plastic products or packaging used by consumers and are reused after being collected, sorted, crushed, and granulated.

[0031] It is understandable that by using industrially recycled plastics or post-consumer recycled plastics, the proportion of recycled materials used in the backlight module 1 can be effectively increased, thereby responding to the policy requirements of green manufacturing and low-carbon environmental protection.

[0032] It should be noted that the recycled sheet metal stamping materials are usually melted, recycled, crushed and mixed before being re-formed. Due to the destruction of the metal's grain structure and the increase of impurities during the recycling process, its mechanical properties (such as tensile strength) are lower than those of the original material. During the stamping process, cracks are easily formed in the bending area of ​​the back plate 10. At the same time, during the repeated melting and remanufacturing of the recycled plastic material, the molecular chains will break and redistribute, resulting in increased material fluidity and decreased thermal stability. This makes it easy to cause uneven shrinkage during injection molding, causing the frame 40 to warp, deform or break, thereby reducing the mechanical strength and assembly accuracy of the frame 40.

[0033] In this embodiment, by embedding at least part of the back plate 10 into the frame 40, and the frame 40 covering the bending connection between the support plate 12 and the base plate 11, the frame 40 covers the cracks that may occur in the back plate 10 during processing, preventing external water vapor, salt spray and other corrosive media from penetrating into the back plate 10 through the crack channels, thereby improving the corrosion resistance and reliability of the backlight module 1.

[0034] Furthermore, the back plate 10 can serve as a structural support for the frame 40, reinforcing the frame 40 and limiting its deformation under heat and stress, thus dispersing local stress concentration and improving its rigidity and strength. This prevents deformation and breakage caused by the degradation of recycled plastic performance. Simultaneously, the fitting of the back plate 10 with the frame 40 enhances their bonding strength and positioning accuracy, improving the structural stability and reliability of the backlight module 1 during transportation, assembly, and long-term use.

[0035] Please continue to combine Figure 1 and Figure 2 In one embodiment, the support plate 12 includes a side plate 121 and a bending portion 122. The extending direction of the side plate 121 is perpendicular to the extending direction of the base plate 11. The bending portion 122 connects the base plate 11 and the side plate 121, thereby forming a transition connection structure between the base plate 11 and the side plate 121.

[0036] The frame 40 is arranged around the outer periphery of the support plate 12 and covers the bent portion 122, thereby forming a protective structure on the outer periphery of the bent portion 122 to disperse the stress concentration generated by the back plate 10 during the stamping or bending process and reduce the risk of cracks in the bent portion 122.

[0037] It should be noted that, in this embodiment, for ease of description, the extending direction of the base plate 11 is defined as the first direction X, and the extending direction of the side plate 121 is defined as the second direction Y. Wherein, the first direction X is... Figure 2 The X direction is shown, and the second direction Y is... Figure 2 Y direction shown.

[0038] Furthermore, even if cracks occur in the bent portion 122 during processing or assembly, the adhesive frame 40 covers the bent portion 122, forming a continuous encapsulation structure at the crack. This prevents corrosive media such as water vapor and salt spray from penetrating the back plate 10 along the crack channel, effectively preventing further corrosion and cracking of the back plate 10 and maintaining the mechanical strength and appearance integrity of the back plate 10.

[0039] Meanwhile, the close fit between the frame 40 and the support plate 12 can further improve the structural rigidity between the support plate 12 and the frame 40, making the back plate 10 more uniformly stressed, thereby improving the deformation resistance and structural reliability of the backlight module 1 during assembly, drop and long-term use.

[0040] Furthermore, the frame 40 includes a protective portion 41, a first extension 42, and a second extension 43; the protective portion 41 is disposed corresponding to the bent portion 122 and covers the bent portion 122; the first extension 42 is connected to one end of the protective portion 41 and extends from one end of the protective portion 41 to the side of the side plate 121 away from the bottom plate 11; the second extension 43 is connected to the other end of the protective portion 41 and extends from the other end of the protective portion 41 to the side of the bottom plate 11 away from the side plate 121, thereby enhancing the bonding stability between the frame 40 and the back plate 10.

[0041] Specifically, the protective part 41 can form a covering structure on the outer periphery of the bent part 122, so that the stress concentration area generated by the bent part 122 during the stamping or bending process is covered by flexible material, so as to cover the cracks that may be formed in the bent part 122 during the processing of the back plate 10, and block external water vapor, salt spray and other corrosive media from entering the interior of the back plate 10 through the crack channel.

[0042] Meanwhile, the first extension segment 42 and the second extension segment 43 extend along both sides of the protective part 41 and can respectively fit with the outer surface of the side plate 121 and the outer surface of the bottom plate 11 to form a two-way covering structure. This not only enhances the bonding stability between the frame 40 and the back plate 10, but also forms a complete sealing protective layer at the edge of the back plate 10, thereby improving the reliability and structural stability of the backlight module 1.

[0043] Please continue to combine Figure 1 and Figure 2 In one embodiment, the frame 40, the side plate 121, the bending portion 122 and the bottom plate 11 are integrally molded from iron and plastic, thereby giving the back plate 10 high structural rigidity and airtightness, avoiding the sealing gap and poor assembly problems caused by the separate bonding or screw fixing methods used in related technologies.

[0044] Specifically, the material of the frame 40 includes, but is not limited to, recycled plastic material, and the material of the side plate 121, the bending part 122 and the bottom plate 11 includes, but is not limited to, recycled sheet metal stamping material. By using recycled materials, the proportion of recycled materials used in the backlight module 1 can be effectively increased, thereby responding to the policy requirements of green manufacturing and low-carbon environmental protection.

[0045] In a process of unibody metal-plastic molding, the back plate 10 can first be formed by stamping. The back plate 10 includes a base plate 11 and multiple support plates 12, with the support plates 12 bent and connected to the base plate 11. Subsequently, the back plate 10 is placed into an injection mold, and molten plastic is injected into the mold cavity under high temperature and high pressure conditions, so that the molten plastic and the surface of the metal back plate 10 undergo mechanical interlocking and local chemical bonding, thereby forming a unibody metal-plastic structure. It can be understood that by adopting the unibody metal-plastic molding process, the frame 40 and the back plate 10 can be tightly fitted together, avoiding the formation of air gaps or delamination, and improving the sealing performance and peel strength between the frame 40 and the back plate 10.

[0046] It is understood that by molding the frame 40, the side plate 121, the bending portion 122, and the base plate 11 into a single piece of iron and plastic, the frame 40 not only serves as an outer edge seal and stress buffer, but also forms an outer layer covering the back plate 10 during the injection molding process. This allows the frame 40 to shield and isolate cracks generated at the bending point of the back plate 10, preventing external water vapor, salt spray, and other corrosive media from seeping into the interior of the back plate 10 along the crack channels. As a result, the corrosion resistance and service life of the backlight module 1 under high humidity, salt spray, and thermal cycling environments can be improved, further enhancing the mechanical stability and assembly consistency of the backlight module 1.

[0047] It should be noted that, in one embodiment, as Figure 2 As shown, the outer periphery of the backplate 10 can be formed by full-circumferential injection molding, that is, molten plastic is injected around the entire outer periphery of the backplate 10, so that the plastic frame 40 is set around the outer periphery of the support plate 12 and covers the bent portion 122. By forming a continuous plastic frame 40 around the entire periphery of the backplate 10, protection and reinforcement are provided throughout the entire circumference of the backplate 10, effectively blocking the penetration path of external water vapor, salt spray and other corrosive media, and further improving the sealing reliability and environmental adaptability of the backlight module 1 in humid and hot environments and salt spray environments.

[0048] In another embodiment, such as Figure 3As shown, the backplate 10 includes a first side 10A, a second side 10B, a third side 10C, and a fourth side 10D. The frame 40 covers the first side 10A, the second side 10B, and the third side 10C, and the frame 40 also covers the corresponding bent portion 122. That is, in actual manufacturing, depending on the assembly direction or installation space requirements of the backlight module 1, the frame 40 can only cover a portion of the sides of the backplate 10. The frame 40 can effectively shield potential cracks and block corrosive media such as moisture and salt spray, thereby achieving localized sealing protection. Simultaneously, since the frame 40 only covers a portion of the sides of the backplate 10, it can reduce the amount of plastic used, lower material costs, and shorten injection molding time, thereby improving the molding efficiency of the backlight module 1.

[0049] Please combine Figure 4 and Figure 5 In one embodiment, the backlight module 1 includes a back plate 10, a light guide plate 20, and an optical film layer 30; the back plate 10 includes a base plate 11 and at least one support plate 12, the support plate 12 being bent and connected to the base plate 11; wherein, the support plate 12 and the base plate 11 are spliced ​​together, thereby eliminating the bending process of the back plate 10, avoiding the problem of cracks appearing in the bending area due to large strain and stress concentration in local areas during the stamping or bending forming process, thereby improving the reliability and stability of the back plate 10.

[0050] Specifically, the support plate 12 can be spliced ​​with the base plate 11 by mechanical connection (such as welding, snap-fit ​​or riveting) rather than by traditional bending and integral molding; wherein, the support plate 12 is arranged around the outer periphery of the base plate 11 to form a circumferential support frame structure for the base plate 11, and the support plate 12 can form a covering force boundary on the outer periphery of the base plate 11, thereby providing additional reinforcement when the backlight module 1 is subjected to external impact, compression or assembly stress.

[0051] In addition, the tensile strength of the support plate 12 is greater than that of the base plate 11. When the back plate 10 is subjected to external force, the force is first absorbed and dispersed by the support plate 12, which has higher strength, thereby avoiding stress concentration at the edge or splicing part of the base plate 11, preventing the base plate 11 from undergoing local deformation or crack propagation, and thus improving the structural stability of the backlight module 1 during handling and assembly.

[0052] Furthermore, the support plate 12 includes a connecting plate 123, a bending portion 122, and a side plate 121. The connecting plate 123 is spliced ​​with the bottom plate 11, and the bending portion 122 connects the connecting plate 123 and the side plate 121. The extension direction of the side plate 121 is perpendicular to the extension direction of the bottom plate 11, and the extension direction of the connecting plate 123 is parallel to the extension direction of the bottom plate 11. Thus, the support plate 12 and the bottom plate 11 together form an "L-shaped" support structure, which enhances the rigidity of the back plate 10 and further reduces the risk of deformation of the bottom plate 11.

[0053] Specifically, the material of the support plate 12 includes, but is not limited to, recycled metal materials, and the material of the base plate 11 includes, but is not limited to, recycled sheet metal stamping materials. By using recycled materials, the proportion of recycled materials used in the backlight module 1 can be effectively increased, reducing dependence on virgin metal resources. At the same time, it can also reduce the cost of raw material procurement and processing, thereby responding to the policy requirements of green manufacturing and low-carbon environmental protection.

[0054] Furthermore, the material of the support plate 12 may include recycled aluminum plate, and the material of the base plate 11 may include recycled steel plate; wherein, aluminum has excellent tensile strength and ductility, so that even if the support plate 12 is subjected to a certain bending deformation during the forming or splicing process, it is not easy to produce cracks or structural damage, thereby further improving the reliability and durability of the backlight module 1 during assembly and long-term use.

[0055] Please combine Figure 6 and Figure 7 In one embodiment, the back plate 10 includes two support plates 12, the two support plates 12 including a first support plate 12A and a second support plate 12B. The first support plate 12A is spliced ​​with the bottom plate 11, the second support plate 12B is integrally formed with the bottom plate 11, and the adhesive frame 40 is disposed on the outer periphery of the second support plate 12B, and the adhesive frame 40 covers the bending connection between the second support plate 12B and the bottom plate 11.

[0056] Understandably, by splicing the first support plate 12A with the base plate 11, the local stress concentration caused by stamping or bending during the bending process of the back plate 10 in related technologies is avoided, thereby preventing cracks from appearing in the bending area of ​​the back plate 10. At the same time, by covering the bending connection between the second support plate 12B and the base plate 11 with the frame 40, the frame 40 can cover the cracks that may occur in the back plate 10 during processing, thereby blocking external water vapor, salt spray and other corrosive media from penetrating into the back plate 10 through the crack channels, thereby improving the corrosion resistance and reliability of the backlight module 1.

[0057] Furthermore, the tensile strength of the first support plate 12A is greater than that of the base plate 11, and the tensile strength of the second support plate 12B is equal to that of the base plate 11. The material of the first support plate 12A includes, but is not limited to, recycled metal materials, and the materials of the second support plate 12B and the base plate 11 include, but are not limited to, recycled sheet metal stamping materials. By using recycled materials, the proportion of recycled materials used in the backlight module 1 can be effectively increased, reducing dependence on virgin metal resources. At the same time, it can also reduce the cost of raw material procurement and processing, thereby responding to the policy requirements of green manufacturing and low-carbon environmental protection.

[0058] Specifically, the material of the first support plate 12A includes recycled aluminum plate, and the materials of the second support plate 12B and the base plate 11 both include recycled steel plate. Among them, aluminum has excellent tensile strength and ductility, so that even if the first support plate 12A is subjected to a certain bending deformation during the forming or splicing process, it is not easy to produce cracks or structural damage, thereby further improving the reliability and durability of the backlight module 1 during assembly and long-term use.

[0059] Furthermore, the adhesive frame 40 is disposed on the outer periphery of the second support plate 12B, and the adhesive frame 40 covers the bending connection between the second support plate 12B and the base plate 11, thereby covering the cracks that may be generated in the back plate 10 during the processing, preventing external water vapor, salt spray and other corrosive media from penetrating into the back plate 10 through the crack channels, thereby improving the corrosion resistance and reliability of the backlight module 1.

[0060] Furthermore, the second support plate 12B, the plastic frame 40, and the base plate 11 are integrally formed from iron and plastic, thereby giving the back plate 10 high structural rigidity and airtightness, avoiding the sealing gap and poor assembly problems caused by the separate bonding or screw fixing methods used in related technologies.

[0061] Specifically, the material of the frame 40 includes, but is not limited to, recycled plastic material, and the material of the side plate 121, the bending part 122 and the bottom plate 11 includes, but is not limited to, recycled sheet metal stamping material. By using recycled materials, the proportion of recycled materials used in the backlight module 1 can be effectively increased, thereby responding to the policy requirements of green manufacturing and low-carbon environmental protection.

[0062] It is understandable that by integrally molding the second support plate 12B, the frame 40, and the base plate 11 with iron and plastic, the frame 40 not only serves as an outer edge seal and stress buffer, but also forms an outer layer covering the back plate 10 during the injection molding process. This allows the frame 40 to shield and isolate cracks generated at the bending points of the back plate 10, preventing external water vapor, salt spray, and other corrosive media from seeping into the interior of the back plate 10 along the crack channels. As a result, the corrosion resistance and service life of the backlight module 1 under high humidity, salt spray, and thermal cycling environments can be improved, further enhancing the mechanical stability and assembly consistency of the backlight module 1.

[0063] Please combine Figure 1 , Figure 2 and Figure 8 This embodiment also provides a display device 2, which includes a display panel 21 and a backlight module 1 as described in any of the above embodiments; wherein the display panel 21 may be a liquid crystal display (LCD) panel.

[0064] The display panel 21 is bonded and fixed to the frame 40 of the backlight module 1 by the adhesive layer 22, thereby ensuring the optical bonding accuracy and realizing a stable connection between the display panel 21 and the backlight module 1. This prevents displacement or delamination of the two during transportation, drops, or in environments with changes in temperature and humidity, thereby improving the reliability and assembly consistency of the display device 2.

[0065] Furthermore, the display device 2 also includes a housing 23. The frame 40 has a mounting groove on the side away from the light-emitting surface of the display panel 21, and the housing 23 can be embedded into and fixedly connected to it. By providing a mounting groove on the frame 40, the backlight module 1 can be precisely positioned and tightly fitted with the housing 23, thereby improving the assembly efficiency and accuracy of the display device 2 and avoiding problems such as abnormal noise, loosening, or reduced protective performance caused by excessive assembly gaps between the housing 23 and the backlight module 1.

[0066] It is understood that the backlight module 1 has been described in detail in the above embodiments and will not be described again here; in particular, since the display device 2 adopts all the technical solutions of the above embodiments, it has at least all the beneficial effects brought about by the technical solutions of the above embodiments, and will not be described in detail here.

[0067] In specific applications, the display device 2 can be at least one of the following devices with display functions: smartphone, tablet computer, mobile phone, video phone, e-book reader, desktop computer, laptop computer, netbook, workstation, server, personal digital assistant, portable media player, MP3 player, mobile medical device, camera, game console, digital camera, car navigation system, electronic billboard, ATM or wearable device.

[0068] 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.

[0069] The foregoing has provided a detailed description of a backlight module and display device provided by the embodiments of this utility model. Specific examples have been used to illustrate the principles and implementation methods of this utility model. The description of the above embodiments is only for the purpose of helping to understand the technical solutions and core ideas of this utility model. Those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. These modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of this utility model.

Claims

1. A backlight module, characterized in that, include: The back plate includes a base plate and at least one support plate, wherein the support plate is bent and connected to the base plate; The backlight module further includes a frame, which is disposed on the outer periphery of the back plate and covers the bending connection between the support plate and the base plate, and / or the support plate and the base plate are spliced ​​together.

2. The backlight module according to claim 1, characterized in that, The support plate includes a side plate and a bent portion. The extension direction of the side plate is perpendicular to the extension direction of the base plate, and the bent portion is connected between the base plate and the side plate. The adhesive frame is arranged around the outer periphery of the support plate and covers the bent portion.

3. The backlight module according to claim 2, characterized in that, The frame includes: A protective part is provided corresponding to the bent part, and the protective part covers the bent part; The first extension section is connected to one end of the protective part and extends from one end of the protective part to the side of the side plate away from the bottom plate; The second extension section is connected to the other end of the protective part and extends from the other end of the protective part to the side of the base plate away from the side plate.

4. The backlight module according to claim 2, characterized in that, The frame, side panels, bending section, and base plate are integrally formed from iron and plastic.

5. The backlight module according to claim 1, characterized in that, The support plate is spliced ​​with the base plate, the support plate is arranged around the outer periphery of the base plate, and the tensile strength of the support plate is greater than the tensile strength of the base plate.

6. The backlight module according to claim 5, characterized in that, The support plate includes a connecting plate, a bending portion, and a side plate. The connecting plate is spliced ​​with the base plate, and the bending portion is connected between the connecting plate and the side plate. The extension direction of the side plate is perpendicular to the extension direction of the base plate, and the extension direction of the connecting plate is parallel to the extension direction of the base plate.

7. The backlight module according to claim 1, characterized in that, The back plate includes two support plates, namely a first support plate and a second support plate. The first support plate is spliced ​​with the bottom plate, and the second support plate is integrally formed with the bottom plate. The adhesive frame is disposed on the outer periphery of the second support plate and covers the bending connection between the second support plate and the bottom plate.

8. The backlight module according to claim 7, characterized in that, The tensile strength of the first support plate is greater than that of the base plate, and the tensile strength of the second support plate is equal to that of the base plate.

9. The backlight module according to claim 8, characterized in that, The second support plate, the plastic frame, and the base plate are integrally formed from iron and plastic.

10. A display device, characterized in that, Includes the backlight module as described in any one of claims 1 to 9.

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