Display module structure and digital signage

Abstract

The utility model discloses a display module structure and a digital signage, the display module structure comprises a back plate, a backlight assembly and a limiting member, the back plate comprises a plate main body and a mounting part used for bearing a display panel, and the mounting part is provided with a mounting cavity; the backlight assembly comprises an optical film, and a part of the optical film positioned in the mounting cavity is provided with a mounting hole; the limiting component comprises a connecting part, a first inserting part and a second inserting part which are connected, the connecting part is arranged on the mounting part, the second inserting part and the first inserting part are located at the two ends of the connecting part respectively, face the same side and are arranged at an included angle, and the mounting part is provided with a first mounting hole and a mounting through hole; the first inserting part penetrates through the first mounting hole and is inserted into the mounting hole, and the second inserting part is inserted into the mounting through hole; and a margin gap is formed between the part, positioned in the mounting hole, of the first inserting part and the inner wall surface of the mounting hole. Thus, under the action of the first inserting part, the optical film is restrained in the allowance gap to expand, and the risk of film arching is reduced.

Description

Technical Field

[0001] The embodiments of the utility model relate to the field of display technology, and in particular to a display module structure and a digital signage. Background Art

[0002] With the rapid development of science and technology and the advent of the digital age, display products such as digital signage advertising machines have been widely used in commercial display, information dissemination and other fields. These products have greatly attracted people's attention with their efficient information dissemination capabilities, dynamic visual effects and interactive experience. However, in actual applications, display products such as digital signage advertising machines often face a variety of complex installation and use environments, among which horizontal hanging, vertical hanging, forward tilt and backward tilt installation requirements are particularly prominent.

[0003] In display products such as digital signage advertising machines, the display module structure is its main component. As one of the key components, the performance of the optical diaphragm of the display module structure directly affects the display effect and user experience of the device. However, during use, the optical diaphragm will be affected by environmental factors such as temperature and produce thermal expansion and contraction. Especially in installation states such as horizontal and vertical hanging, forward and backward tilting, there are stricter regulations for the deformation of the optical diaphragm. When the display product is working, the temperature of the optical diaphragm rises, which makes it more likely to cause the film to arch, thereby affecting the display effect and stability of the device. Therefore, it is more important to improve the backlight module to reduce the impact of optical diaphragm deformation. Utility Model Content

[0004] In order to solve the above technical problems, the embodiments of the present utility model provide a display module structure and a digital signage that can reduce the influence caused by the deformation of an optical film.

[0005] The utility model embodiment solves its technical problems by adopting the following technical solutions:

[0006] A display module structure includes a back plate, a backlight assembly and a limiting member, wherein the back plate includes a plate body and a mounting portion connected to the plate body, the mounting portion is provided with a mounting cavity with an opening on a side, and the mounting portion is used to carry a display panel; the backlight assembly is arranged on the back plate, the backlight assembly includes an optical film, the optical film extends into the mounting cavity along the opening, and the portion of the optical film located in the mounting cavity is provided with a mounting hole; the limiting member includes a connected connecting portion, a first plug-in portion and a second plug-in portion, the connecting portion is connected to the mounting portion, the second plug-in portion and the first plug-in portion are respectively located at two ends of the connecting portion and face the same side of the connecting portion, the second plug-in portion and the first plug-in portion are both arranged at an angle with the connecting portion, the mounting portion is provided with a first mounting hole and a mounting through hole, the first plug-in portion passes through the first mounting hole and is inserted into the mounting hole, and the second plug-in portion is inserted into the mounting through hole; wherein there is a margin gap between the portion of the first plug-in portion located in the mounting hole and the inner wall surface of the mounting hole.

[0007] Optionally, the first plug-in portion is a plug-in board, and the mounting hole is a long hole adapted to the plug-in board.

[0008] Optionally, an adhesive member is provided on an end surface of the connecting portion facing the mounting portion, and the connecting portion is bonded to the mounting portion via the adhesive member.

[0009] Optionally, the display module structure also includes a screw connection, the mounting portion is provided with a second mounting hole, the inner wall surface of the second mounting hole has an internal thread, the connecting portion is provided with a third mounting hole, the screw connection passes through the third mounting hole and is threadedly connected to the second mounting hole, so that the limiting member is relatively fixed to the mounting portion.

[0010] Optionally, the display module structure further includes a first buffer component, the first buffer component is disposed on the mounting portion, the first buffer component is provided with an avoidance gap, the connecting portion is disposed in the avoidance gap, and the first buffer component is used to support the display panel.

[0011] Optionally, the display module structure further includes a second buffer component, which is connected to the inner wall surface of the mounting portion having the first mounting hole and faces the optical film.

[0012] Optionally, there are multiple limiting members and multiple mounting holes, multiple limiting members are arranged at intervals on the mounting portion, and one limiting member is inserted into one mounting hole.

[0013] Optionally, the backlight assembly further includes a reflective sheet and a diffuser plate, one end surface of the reflective sheet abuts against the back plate, the other end surface of the reflective sheet abuts against one end surface of the diffuser plate, and the other end surface of the diffuser plate abuts against the optical film.

[0014] Optionally, the mounting portion includes a first plate body, a second plate body and a bent plate body, the two ends of the bent plate body are respectively connected to the first plate body and the second plate body and jointly construct the mounting cavity, the first plate body and the second plate body are spaced apart along the first direction, the first plate body is provided with the first mounting hole and the mounting through hole, and the limiting member is provided on the first plate body.

[0015] The utility model embodiment solves its technical problems by adopting the following technical solutions:

[0016] A digital signage comprises the above-mentioned display module structure and a display panel, wherein the display panel is arranged on the mounting portion of the display module structure.

[0017] The beneficial effects of the embodiments of the utility model are as follows: the display module structure provided by the embodiments of the present application includes a back plate, a backlight assembly and a limiting member, the back plate includes a plate body and a mounting portion connected to the plate body, the mounting portion is provided with a mounting cavity, and the mounting portion is used to carry the display panel; the backlight assembly is arranged on the back plate, the backlight assembly includes an optical film, and part of the optical film located in the mounting cavity is provided with a mounting hole; the limiting member includes a connected connecting portion, a first plug-in portion and a second plug-in portion, the connecting portion is connected to the mounting portion, the second plug-in portion and the first plug-in portion are respectively located at two ends of the connecting portion and face the same side of the connecting portion, the second plug-in portion and the first plug-in portion are both arranged at an angle to the connecting portion, the mounting portion is provided with a first mounting hole and a mounting through hole, the first plug-in portion passes through the first mounting hole and is inserted in the mounting hole, and the second plug-in portion is inserted in the mounting through hole; wherein, there is a residual gap between the part of the first plug-in portion located in the mounting hole and the inner wall surface of the mounting hole. In this way, when the optical film expands in all directions due to heat, the residual gap between the mounting hole and the first plug-in portion can be used to constrain the optical film from expanding in the space of the residual gap under the action of the first plug-in portion, thereby reducing the risk of the optical film having a film arch phenomenon. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] One or more embodiments are exemplarily described by pictures in the corresponding drawings, and these exemplified descriptions do not constitute limitations on the embodiments. Elements with the same reference numerals in the drawings represent similar elements, and unless otherwise stated, the figures in the drawings do not constitute proportional limitations.

[0019] Figure 1 is a schematic diagram of a digital signage according to one embodiment of the present application;

[0020] Figure 2 yes Figure 1 The structural breakdown diagram of

[0021] Figure 3 yes Figure 1 A schematic diagram of another embodiment after cutting along PP;

[0022] Figure 4 is a cross-sectional view of a display module structure of yet another embodiment;

[0023] Figure 5 yes Figure 4 The structural breakdown diagram of

[0024] In the figure: 100, digital signage; 10, display module structure; 20, display panel; 30, rear housing; 50, first buffer; 60, second buffer;

[0025] 1. Back panel; 2. Backlight assembly; 3. Limiting member; 4. Outer frame;

[0026] 11. Plate body; 12. Mounting portion; 121. First plate body; 122. Second plate body; 123. Bent plate body; 124. Mounting cavity; 1201. First mounting hole; 1202. Second mounting hole;

[0027] 21. Optical film; 22. Reflector; 23. Diffuser;

[0028] 211, mounting hole;

[0029] 31. Connecting portion; 32. First plug-in portion; 313. Third mounting hole;

[0030] 35. Second plug-in portion; 36. Screw-on member; 302. Mounting through hole; 51. Avoidance notch. DETAILED DESCRIPTION

[0031] In order to facilitate the understanding of the utility model, the utility model is described in more detail below in conjunction with the accompanying drawings and specific embodiments. It should be noted that when an element is described as "fixed to" another element, it can be directly on another element or there can be one or more centered elements therebetween. When an element is described as "connected" to another element, it can be directly connected to another element or there can be one or more centered elements therebetween. The orientation or positional relationship indicated by the terms "upper", "lower", "inner", "outer", "vertical", "horizontal", etc. used in this specification is based on the orientation or positional relationship shown in the accompanying drawings, only for the convenience of describing the utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the utility model. In addition, the terms "first", "second", etc. are only used for descriptive purposes and cannot be understood as indicating or implying relative importance.

[0032] Unless otherwise defined, all technical and scientific terms used in this specification have the same meaning as those commonly understood by those skilled in the art in the technical field of the present invention. The terms used in the specification of the present invention are only for the purpose of describing specific embodiments and are not used to limit the present invention. The term "and / or" used in this specification includes any and all combinations of one or more related listed items.

[0033] In addition, the technical features involved in different embodiments of the present invention described below can be combined with each other as long as they do not conflict with each other.

[0034] With the rapid development of science and technology and the advent of the digital age, products such as digital signage have been widely used in commercial display, information dissemination and other fields. These products have greatly attracted people's attention with their efficient information dissemination capabilities, dynamic visual effects and interactive experience. These products are not only widely used in public places such as large shopping malls, supermarkets, and stations, but also gradually penetrate into private spaces such as homes and offices. However, in actual applications, display products such as digital signage often face a variety of complex installation and use environments, such as horizontal hanging, vertical hanging, forward tilt and backward installation requirements.

[0035] In the design and manufacturing process of display products such as digital signage, the display module structure, as an important component, directly affects the imaging effect of the display product. The traditional display module structure generally includes a backplane, a backlight assembly, a middle frame and a front frame. The front frame fixes the backlight assembly located between the middle frame and the backplane, and the middle frame is used to carry the display panel. Due to the existence of the middle frame, traditional digital signage generally appears to be relatively thick. Based on this, the inventor of this application has designed a new solution through research, including a new design of the shape of the backplane and the elimination of the middle frame in the existing design, so that the backplane can carry the display panel, making the entire product light and thin.

[0036] The backlight assembly includes an optical film, a diffuser plate and a reflector plate stacked in sequence. The aforementioned new back plate will form a mounting cavity with an opening on one side. During assembly, the optical film, diffuser plate and reflector plate all need to extend into the mounting cavity through the opening, and the opposite sides of the optical film are also fixed to the diffuser plate by double-sided tape. In this way, the side mounting of the backlight assembly replaces the traditional straight-up or straight-down mounting method.

[0037] However, after long-term experimental research, the inventors found that after replacing the middle frame with a new back panel, the aforementioned side-mounted optical film will also cause the optical film to have a film arch problem, especially when the digital sign is switched between horizontal hanging, vertical hanging, forward tilt, backward tilt and other scenes, the film arch problem is more prominent, affecting the imaging effect of the digital sign. Specifically, when the optical film is fixed to the diffuser plate on both sides of the digital sign by double-sided tape, the optical film is prone to expansion and deformation due to heat. At this time, it is difficult for the optical film to expand in all directions, so that the part of the optical film that is extended when it expands will be accumulated relative to the end of the optical film, and eventually the local area of ​​the optical film will be equivalent to the end of the arch phenomenon, affecting the display effect of the digital sign.

[0038] Based on this, the inventor, in the present solution, opens a mounting hole on the optical film, and additionally sets a limiting component, which extends from the outside of the back plate into the mounting cavity of the back plate and is inserted into the mounting hole, and there is a residual gap between the limiting component and the inner wall surface of the mounting hole. By setting the residual gap, expandable space is reserved for the optical film, thereby reducing the impact of thermal expansion of the optical film, thereby achieving thinning of the digital signage while ensuring that the digital signage has a good display effect.

[0039] In order to facilitate understanding of the structure of the display module structure of the present application, the following drawings show the structure involved in improving the above-mentioned problems by the inventor of the present application, but this does not mean that the structure of the display module structure can only be the component structure shown in the figure, that is, the display module structure is not limited to the structure shown in the following drawings, and the structure of the display module structure can be appropriately adjusted as needed.

[0040] like Figure 1-2 As shown, a digital signage 100 provided in one embodiment of the present application includes a display module structure 10 and a display panel 20, wherein the display panel 20 is disposed in the display module structure 10, that is, the display panel 20 is carried by the display module structure 10. The display module structure 10 provides the necessary light source for the display panel 20, and the display panel 20 realizes image display by adjusting the arrangement of internal liquid crystal molecules.

[0041] In some embodiments, Figure 2 As shown, the digital signage 100 further includes a rear shell 30 , which covers the display module structure 10 and is connected to the display module structure 10 . The rear shell 30 prevents the outside from directly acting on the display module structure 10 , and can protect the display module structure 10 .

[0042] For the above-mentioned display module structure 10, Figure 3 or Figure 5 As shown, it includes a back plate 1, a backlight assembly 2 and a limiting member 3, wherein the backlight assembly 2 is arranged in the back plate 1, and the limiting member 3 is arranged on the back plate 1. Among them, the backlight assembly 2 includes an optical film 21, and the limiting member 3 is used to constrain the optical film 21 to prevent the optical film 21 from moving at will. It should be noted here that the limiting member 3 constrains the optical film 21, which means that the optical film 21 is allowed to deform, expand and move within a preset range, and the relative position of the optical film 21 and the back plate 1 is not fixed, and it can also limit the optical film 21 from being separated from the back plate 1.

[0043] In some embodiments, Figure 2 As shown, the display module structure 10 also includes an outer frame 4, which is connected to the back plate 1. The outer frame 4 is used to fix the relative position between the display panel 20 and the back plate 1 to prevent the display panel 20 from separating from the back plate 1. At the same time, it can also protect the surrounding areas of the back plate 1 and the display panel 20.

[0044] like Figure 3 As shown, the back plate 1 includes a plate body 11 and a mounting portion 12 connected to the plate body 11, the mounting portion 12 is located at the edge of the plate body 11, and the mounting portion 12 is provided with a mounting cavity 124 with an opening 1241 on the side. The mounting portion 12 includes a first plate body 121 and a second plate body 122 arranged at intervals along a first direction X, and the first plate body 121 and the second plate body 122 can construct a mounting cavity 124, and the mounting cavity 124 can accommodate part of the optical film 21. Among them, the first plate body 121 is used to carry the display panel 20, and the second plate body 122 is used to carry the backlight assembly 2. Among them, the first direction X refers to the thickness direction of the display module structure 10.

[0045] In some embodiments, Figure 3As shown, the mounting portion 12 further includes a bent plate 123, the two ends of which are respectively connected to the first plate 121 and the second plate 122, thereby constructing an F-folded backplane structure and forming a mounting cavity 124 with an opening 1241 on one side. The bent plate 123 is configured to extend from one end of the second plate 122 toward the first plate 121 and exceed the first plate 121, so that the portion of the bent plate 123 that exceeds the first plate 121 can block the display panel 20 and prevent the display panel 20 from exceeding the edge of the backplane 1.

[0046] The shape of the bent plate 123 can be set as needed, for example, it can be a U shape, it can also be a straight shape, and of course it can also be other shapes. The first plate 121, the second plate 122 and the bent plate 123 can be made in an integral manner, or they can be connected by plugging, snapping, etc. In this embodiment, the mounting portion 12 and the plate body 11 are both made in an integral manner, which is conducive to making the back plate 1 have a better flatness, reducing the risk of light leakage from the gap, and is conducive to improving the display effect of the digital signage 100.

[0047] In some embodiments, Figure 3 As shown, the backlight assembly 2 includes an optical film 21, which extends into the mounting cavity 124 along the opening 1241, and a portion of the optical film 21 located in the mounting cavity 124 is provided with a mounting hole 211. The shape of the mounting hole 211 can be set as required, and for example, the shape of the mounting hole 211 is a long hole. For another example, the shape of the mounting hole 211 is an ellipse.

[0048] In some embodiments, Figure 3 As shown, the backlight assembly 2 further includes a light source (not shown), a reflective sheet 22 and a diffuser 23. The light source is disposed on one end face of the reflective sheet 22 away from the back plate 1. One end face of the reflective sheet 22 abuts against the back plate 1, the other end face of the reflective sheet 22 abuts against one end face of the diffuser 23, the other end face of the diffuser 23 abuts against the optical film 21, and the diffuser 23 supports the optical film 21. The light source is used to emit light to the diffuser 23, the diffuser 23 can change the beam angle of the light, and the reflective sheet 22 is used to reflect part of the exposed light so that the reflected light can be directed to the diffuser 23, thereby making full use of the light and improving the light utilization efficiency.

[0049] In some embodiments, Figure 3As shown, the limiting member 3 is provided at the mounting portion 12, and the limiting member 3 is configured to be partially provided in the mounting cavity 124 and inserted into the mounting hole 211, and there is a margin gap between the outer wall surface of the part of the limiting member 3 located in the mounting hole 211 and the inner wall surface of the mounting hole 211. In this way, the limiting member 3 can constrain the optical film 21 to prevent the optical film 21 from moving randomly relative to the back plate 1. At the same time, since there is a margin gap between the mounting hole 211 of the optical film 21 and the limiting member 3, it can provide a space margin for expansion when the optical film 21 expands due to heat, reducing the risk of the optical film 21 having a film arch, and does not affect the contraction of the optical film 21 when it returns to normal temperature.

[0050] The margin gap means that the inner wall surface of the mounting hole 211 and the outer wall surface of the part of the limiting member 3 located in the mounting hole 211 are not clearance-fitted, but a space larger than the clearance fit is reserved to provide expansion space when the optical film 21 expands due to heat.

[0051] It is understandable that the limiting member 3 can be arranged on the first plate body 121 or on the second plate body 122 , and can be specifically arranged according to needs.

[0052] In some embodiments, there are multiple limiting members 3 and multiple mounting holes 211, multiple limiting members 3 are arranged at intervals on the mounting portion 12, and one limiting member 3 is inserted into one mounting hole 211. In this way, under the action of multiple limiting members 3 and multiple mounting holes 211, it is beneficial for the optical film 21 to expand evenly when heated.

[0053] In some embodiments, there are multiple mounting parts 12 and the number is not more than four. The multiple mounting parts 12 are respectively located at different side ends of the board body 11. Multiple limiting members 3 can be set on each mounting part 12. Correspondingly, along the first direction X, the optical film 21 located below the limiting member 3 is correspondingly provided with a mounting hole 211. Each limiting member 3 partially extends into the mounting cavity 124 and is inserted into the mounting hole 211. In this way, the optical film 21 can be constrained at multiple positions on the back panel 1, which is conducive to the optical film 21 having a space for expansion when it expands around due to heat.

[0054] It is understandable that traditional digital signage usually has a plastic middle frame, and the display panel is carried by the plastic middle frame. The plastic frame cooperates with the outer frame of the digital signage to form a sealed space to block external light from entering the optical film, so as to ensure that external light does not interfere with the normal operation of the backlight assembly. The digital signage 100 of the embodiment of the present application can omit the plastic middle frame, thereby reducing the internal space of the outer frame 4, which is conducive to reducing the thickness of the outer frame. Specifically, the mounting portion 12 of the back panel 1 of the display module structure 10 adopted in the present application adopts an F-folded back panel structure. On the one hand, it can directly carry the display panel 20, so the plastic middle frame can be cancelled. On the other hand, it can also accommodate part of the optical film 21, and the F-folded back panel structure can also be used to block external light to prevent external light from irradiating the optical film 21.

[0055] In some embodiments, Figure 3 As shown, the limiting member 3 includes a connecting portion 31 and a first plug-in portion 32 connected to the connecting portion 31, the connecting portion 31 is connected to the mounting portion 12, the mounting portion 12 is provided with a first mounting hole 1201, the first plug-in portion 32 passes through the first mounting hole 1201 and is inserted into the mounting hole 211. In this way, when the optical film 21 expands in all directions due to heat, the optical film 21 can be constrained to expand in the space of the residual gap by utilizing the residual gap between the mounting hole 211 and the first plug-in portion 32, under the action of the first plug-in portion 32, thereby reducing the risk of the optical film 21 having a film arch phenomenon. In addition, when the digital sign 100 is hung horizontally or vertically, the first plug-in portion 32 can play a role in supporting the optical film 21, thereby increasing the stability of the structure of the optical film 21 and reducing the risk of deformation of the optical film 21.

[0056] It can be understood that the installation position and installation method of the limiting member 3 and the installation portion 12 can be set as needed, as long as the limiting member 3 can constrain the optical film 21.

[0057] In some embodiments, Figure 3-5 As shown, along the first direction X, the limiting member 3 is arranged on the first plate 121, and the first plate 121 is provided with the above-mentioned first mounting hole 1201. Among them, the connecting portion 31 of the limiting member 3 is connected to the first plate 121, and the first plug-in portion 32 passes through the first mounting hole 1201 and is inserted into the mounting hole 211. In this way, the space where the bent plate 123 of the mounting portion 12 exceeds the first plate 121 can be used to accommodate the limiting member 3, thereby reducing the excessive space occupied by the limiting member 3 in the thickness direction, which is conducive to reducing the overall thickness of the display module structure 10.

[0058] In some embodiments, the first plug-in portion 32 is a plug-in board, and the mounting hole 211 is a long hole adapted to the plug-in board. It should be noted here that the mounting hole 211 is a long hole adapted to the plug-in board, which means that the mounting hole 211 and the plug-in board are plug-fitted and there is a margin gap between the two.

[0059] In some embodiments, Figure 3-5 As shown, the connection part 31 and the first plug part 32 are both in the shape of a plate, so that the surface of the connection part 31 is quickly attached to the surface of the first plate body 121, and the first plug part 32 can quickly pass through the first mounting hole 1201 and be inserted into the mounting hole 211. At the same time, the contact mode between the first plug part 32 and the inner wall surface of the mounting hole 211 is surface contact, which is conducive to increasing the force-bearing area, reducing the pressure on the optical film 21 under the action of gravity when the digital sign 100 is hung horizontally or vertically, and is conducive to reducing the deformation degree of the optical film 21 caused by the support of the first plug part 32.

[0060] In some embodiments, Figure 3-5 As shown, the limiting member 3 also includes a second plug-in portion 35 connected to the connecting portion 31, and the second plug-in portion 35 and the first plug-in portion 32 are respectively located at the two ends of the connecting portion 31, and the second plug-in portion 35 and the first plug-in portion 32 are both arranged at an angle with the connecting portion 31 and are both facing the same side relative to the connecting portion 31. The second plug-in portion 35 and the first plug-in portion 32 are both arranged at an angle with the connecting portion 31, which means that the angle between the first plug-in portion 32 and the second plug-in portion 35 and the connecting portion 31 is greater than 0°, that is, the three are not on the same horizontal line. In this embodiment, the angle between the first plug-in portion 32 and the second plug-in portion 35 and the connecting portion 31 is 90°.

[0061] Among them, the first plate body 121 is provided with a mounting through hole 302, and the second plug-in portion 35 is provided in the mounting through hole 302. In this way, under the action of the second plug-in portion 35, the mounting position can be quickly located, and the second plug-in portion 35 and the first plug-in portion 32 are jointly against the inner wall surface of the first plate body 121, reducing the risk of relative sliding between the limiting member 3 and the first plate body 121, which is conducive to improving the stability of the display module structure 10. In addition, compared with the method of only providing the first plug-in portion 32 to bear the gravity of the optical film 21, adding the second plug-in portion 35 can play a role in enhancing the overall strength of the limiting member 3. Specifically, in scenes such as horizontal hanging or vertical hanging, when the optical film 21 is subjected to the action of gravity and exerts a force away from the second plug-in portion 35 on the first plug-in portion 32, the second plug-in portion 35 is supported by the inner wall surface of the mounting through hole 302 and bears the gravity of the optical film 21 together with the first plug-in portion 32, thereby reducing the influence of the optical film 21 on the first plug-in portion 32.

[0062] Furthermore, along the direction of the first plate body 121 away from the bent plate body 123, the portion of the second plug-in portion 35 that is used to contact the inner wall surface of the mounting through hole 302, and the portion of the first plug-in portion 32 that is used to contact the inner wall surface of the first mounting hole 1201, when the limiting member 3 mounts the optical film 21, can both play a role in limiting the movement of the limiting member 3, which is beneficial to improving the stability of the connection between the limiting member 3 and the first plate body 121.

[0063] In some embodiments, the connecting portion 31, the first plug-in portion 32 and the second plug-in portion 35 are all designed to be a plate-like structure, which is beneficial to increase the contact area with the first plate body 121, reduce the pressure on the limiting member 3 when mounting the optical film 21, reduce the risk of excessive pressure on the optical film 21 causing aggravated deformation, and reduce the risk of damage to the optical film 21.

[0064] It is understandable that the shape of the mounting hole 302 can be any shape as long as the second plug-in portion 35 can be inserted into the mounting hole 302, for example, it can be a square hole or a waist-shaped hole, etc. Similarly, the shape of the first mounting hole 1201 can be any shape as long as the first plug-in portion 32 can be inserted into it.

[0065] In some embodiments, the connecting portion 31 , the first plug-in portion 32 , and the second plug-in portion 35 are integrally formed.

[0066] There are many ways to connect the connection part 31 to the first plate body 121, as long as the connection part 31 and the first plate body 121 can be relatively fixed. For example, the connection part 31 and the first plate body 121 can be relatively fixed by bonding. Specifically, a bonding member is provided on one end surface of the connection part 31 facing the first plate body 121, and the connection part 31 is bonded to the first plate body 121 by the bonding member. The bonding member may include but is not limited to glue, double-sided tape, etc. For another example, the connection part 31 and the first plate body 121 are connected by laser welding.

[0067] In some embodiments, Figure 3-5 As shown, the display module structure 10 further includes a screw connection 36, the first plate 121 is provided with a second mounting hole 1202, the inner wall surface of the second mounting hole 1202 has an internal thread, the connecting portion 31 is provided with a third mounting hole 313, the screw connection 36 passes through the third mounting hole 313 and is threadedly connected with the second mounting hole 1202, so that the limiting member 3 is relatively fixed to the first plate 121. The screw connection 36 can be a bolt or other component with threads, as long as it can fix the limiting member 3 to the first plate 121. When the screw connection 36 is threadedly connected to the second mounting hole 1202, a certain clamping force is formed between the first plug-in portion 32 and the second plug-in portion 35, so that the limiting member 3 can be clamped on the first plate 121 and fixed to the first plate 121 through the screw connection 36.

[0068] The shape of the limiting member 3 can be a U shape or other shapes, which can be set according to needs. In this embodiment, the limiting member 3 is in a U shape, and the protrusion of the first plug-in portion 32 relative to the surface of the connecting portion 31 is larger than the protrusion of the second plug-in portion 35 relative to the surface of the connecting portion 31, and the second plug-in portion 35 does not abut the optical film 21, so as to avoid the second plug-in portion 35 causing scratches on the surface of the optical film 21 when it expands.

[0069] The limiting member 3 of this embodiment can constrain the optical film 21, and prevent the optical film 21 from moving randomly relative to the back plate 1 in scenes such as horizontal or vertical hanging. At the same time, since there is a margin gap between the mounting hole 211 of the optical film 21 and the limiting member 3, when the optical film 21 is heated and expands to the surroundings, since the size of the mounting hole 211 is larger than the size of the first plug-in portion 32, the remaining space of the mounting hole 211 except the space occupied by the first plug-in portion 32 can be used as the expansion margin of the optical film 21 when it expands to the surroundings, reducing the risk that the optical film 21 cannot expand to the surroundings due to the obstruction of the first plug-in portion 32, and avoiding the risk that the optical film 21 cannot expand to the surroundings due to thermal expansion and accumulates in the middle, causing the film arch. At the same time, the limiting member 3 of this embodiment is designed as a U-shaped plate structure. When assembling, the first plug-in portion 32 and the second plug-in portion 35 are installed together to the first plate 121, which is conducive to rapid installation and assembly effect.

[0070] In some embodiments, Figure 3-5 As shown, the display module structure 10 further includes a first buffer 50, which is disposed on the mounting portion 12 and is used to support the display panel 20. In this embodiment, the first plate body 121 is away from one end surface of the second plate body 122, and the first buffer 50 is foam, so that the risk of the edge of the display panel 20 directly contacting the back plate 1 can be reduced, thereby protecting the display panel 20.

[0071] In some embodiments, Figure 3-5 As shown, the first buffer 50 is provided with an escape notch 51, which is used to escape the limiting member 3, which is helpful to reduce the risk of the first buffer 50 being superimposed on the limiting member 3 when it is arranged on the first plate 121, thereby causing the overall thickness of the display module structure 10 to become thicker. In this embodiment, the connecting portion 31 is arranged in the escape notch 51.

[0072] In some embodiments, along the first direction X, the thickness of the first buffer member 50 is greater than the thickness of the connecting portion 31. The first buffer member 50 is used to support the display panel 20. This can reduce the possibility that the first buffer member 50 is compressed and collides with the connecting portion 31 when pressed by the display panel 20, thereby improving the safety performance of the display module structure 10.

[0073] In some embodiments, Figure 3-5 As shown, the display module structure 10 further includes a second buffer 60, which is connected to the inner wall surface of the mounting portion 12 having the first mounting hole 1201 and faces the optical film 21. In this embodiment, the second buffer 60 is connected to the side of the first plate 121 facing the optical film 21, and the second buffer 60 is located between the optical film 21 and the first plate 121. In this way, the optical film 21 can be prevented from directly contacting the first plate 121, thereby reducing the risk of damage to the optical film 21. The second buffer 60 includes but is not limited to foam, as long as it has the ability to elastically deform.

[0074] Through the above structure, when the optical film 21 of the display module structure 10 is constrained by the limiting member 3, the risk of the optical film 21 expanding due to heat and causing film arching when the display module structure 10 is working can be reduced, which is beneficial to improving the stability of the display module structure 10 and further meeting the requirements for deformation of the optical film 21 in scenarios such as hanging the digital sign 10 horizontally or vertically.

[0075] The above description is only an implementation method of the present utility model, and does not limit the patent scope of the present utility model. Any equivalent structure or equivalent process transformation made by using the contents of the specification and drawings of the present utility model, or directly or indirectly applied in other related technical fields, are also included in the patent protection scope of the present utility model.

Claims

1. A display module structure (10), characterized in that: include: A back panel (1), comprising a panel body (11) and a mounting portion (12) connected to the panel body (11), the mounting portion (12) being provided with a mounting cavity (124) having an opening (1241) on a side surface, and the mounting portion (12) being used to carry a display panel (20); A backlight assembly (2) is arranged on the back plate (1), the backlight assembly (2) comprises an optical film (21), the optical film (21) extends into the installation cavity (124) along the opening (1241), and a mounting hole (211) is provided on the portion of the optical film (21) located in the installation cavity (124); A limiting component (3), comprising a connecting portion (31), a first plug-in portion (32) and a second plug-in portion (35) connected to each other, the connecting portion (31) being connected to the mounting portion (12), the second plug-in portion (35) and the first plug-in portion (32) being respectively located at two ends of the connecting portion (31) and facing the same side of the connecting portion (31), the second plug-in portion (35) and the first plug-in portion (32) being arranged at an angle to the connecting portion (31), the mounting portion (12) being provided with a first mounting hole (1201) and a mounting through hole (302), the first plug-in portion (32) passing through the first mounting hole (1201) and being inserted into the mounting hole (211), and the second plug-in portion (35) being inserted into the mounting through hole (302); There is a residual gap between the portion of the first plug-in portion (32) located in the mounting hole (211) and the inner wall surface of the mounting hole (211).

2. The display module structure (10) according to claim 1, characterized in that: The first plug-in portion (32) is a plug-in board, and the mounting hole (211) is a long hole adapted to the plug-in board.

3. The display module structure (10) according to claim 1, characterized in that: An adhesive member is provided on one end surface of the connecting portion (31) facing the mounting portion (12), and the connecting portion (31) is bonded to the mounting portion (12) via the adhesive member.

4. The display module structure (10) according to claim 1, characterized in that: The display module structure (10) further includes a screw connection (36); the mounting portion (12) is provided with a second mounting hole (1202); the inner wall surface of the second mounting hole (1202) has an internal thread; the connecting portion (31) is provided with a third mounting hole (313); the screw connection (36) passes through the third mounting hole (313) and is threadedly connected to the second mounting hole (1202), so that the limiting member (3) and the mounting portion (12) are relatively fixed.

5. The display module structure (10) according to claim 1, characterized in that: The display module structure (10) further comprises a first buffer component (50), the first buffer component (50) being arranged on the mounting portion (12), the first buffer component (50) being provided with an avoidance notch (51), the connecting portion (31) being arranged in the avoidance notch (51), and the first buffer component (50) being used for carrying the display panel (20).

6. The display module structure (10) according to claim 1, characterized in that: The display module structure (10) further comprises a second buffer member (60), wherein the second buffer member (60) is connected to the inner wall surface of the mounting portion (12) having the first mounting hole (1201) and faces the optical film (21).

7. The display module structure (10) according to claim 1, characterized in that: There are a plurality of the limiting components (3) and the mounting holes (211); a plurality of the limiting components (3) are arranged at intervals on the mounting portion (12), and one limiting component (3) is inserted into one mounting hole (211).

8. The display module structure (10) according to claim 1, characterized in that: The backlight assembly (2) further comprises a reflective sheet (22) and a diffuser plate (23); one end surface of the reflective sheet (22) abuts against the back plate (1); the other end surface of the reflective sheet (22) abuts against one end surface of the diffuser plate (23); and the other end surface of the diffuser plate (23) abuts against the optical film (21).

9. The display module structure (10) according to any one of claims 1 to 8, characterized in that: The mounting portion (12) comprises an integrally formed first plate body (121), a second plate body (122) and a bent plate body (123); two ends of the bent plate body (123) are respectively connected to the first plate body (121) and the second plate body (122) and together form the mounting cavity (124); the first plate body (121) and the second plate body (122) are arranged at intervals along a first direction (X); the first plate body (121) is provided with the first mounting hole (1201) and the mounting through hole (302); and the limiting member (3) is provided on the first plate body (121).

10. A digital signage, characterized in that: It comprises a display module structure (10) as claimed in any one of claims 1 to 9 and a display panel (20), wherein the display panel (20) is arranged on the mounting portion (12) of the display module structure (10).

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