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 connected with the plate main body, the mounting part is provided with a mounting cavity, and the mounting part is used for bearing a display panel; the backlight assembly is arranged on the back plate and comprises an optical film, and a part of the optical film located in the mounting cavity is provided with a mounting hole; the limiting component comprises a connecting part, a first inserting part and an extending part which are connected with one another, the connecting part is connected to the mounting part, a mounting hole is formed in the mounting part, the first inserting part penetrates through the mounting hole and is inserted into the hanging hole, and the extending part extends in the direction away from the mounting cavity; a margin gap is formed between the part, located in the mounting hole, of the first inserting part and the inner wall face of the mounting hole. When the optical film is heated to expand, the optical film is hung on the limiting component and naturally falls by utilizing the allowance gap between the hanging hole and the first inserting part, so that 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, 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 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 an extending portion, the connecting portion is connected to the mounting portion, the mounting portion is provided with a mounting hole, the first plug-in portion passes through the mounting hole and is inserted in the mounting hole, and the extending portion is extended in a direction away from the mounting cavity; wherein, there is a residual 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, a bonding member is provided on a side of the connecting portion facing the mounting portion, and the connecting portion is bonded to the mounting portion through the bonding member.

[0008] Optionally, the bonding member includes double-sided tape or glue.

[0009] Optionally, the display module structure also includes an outer frame, the outer frame is provided with a cavity, and the mounting portion is arranged in the cavity; along the extension direction of the extension portion, the distance between one end of the extension portion away from the connecting portion and the inner wall surface of the outer frame is smaller than the size of the first plug-in portion.

[0010] Optionally, the display module structure further includes a first buffer component, which is disposed on the mounting portion and is used to support the display panel.

[0011] Optionally, the display module structure further includes a second buffer, which is connected to the inner wall surface of the mounting portion and is away from the limiting component and faces a side of the optical film where the mounting hole is provided.

[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 second plate body is connected to the plate body, and the connecting portion is connected to the second 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 embodiment of the utility model are as follows: the display module structure provided by the embodiment 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 with an opening on the side, 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, the optical film extends into the mounting cavity along the opening, and a part of the optical film located in the mounting cavity is provided with a mounting hole; the limiting member includes a connecting portion, a first plug-in portion and an extending portion connected to each other, the connecting portion is connected to the mounting portion, the mounting portion is provided with a mounting hole, the first plug-in portion passes through the mounting hole and is inserted in the mounting hole, and the extending portion is extended in a direction away from the mounting cavity; 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 due to heat, the residual gap between the mounting hole and the first plug-in portion is utilized, and under the action of the first plug-in portion, the optical film can be constrained to expand in the space of the residual gap, 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 display of one embodiment of the present application;

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

[0021] Figure 3 It is a cross-sectional view showing the structure of the module structure;

[0022] Figure 4 It is a partial cross-sectional view showing the module structure;

[0023] In the figure: 100, digital signage; 10, display module structure; 20, display panel; 30, rear housing; 50, first buffer member; 60, second buffer member;

[0024] 1. Back panel; 2. Backlight assembly; 3. Limiting member; 4. Outer frame;

[0025] 11. Plate body; 12. Mounting portion; 121. First plate body; 122. Second plate body; 123. Bent plate body; 124. Mounting cavity; 1201. Mounting hole; 1241. Opening;

[0026] 21. Optical film; 22. Reflector; 23. Diffuser;

[0027] 211, mounting hole;

[0028] 31. Connecting portion; 32. First plug-in portion; 33. Extending portion;

[0029] 41. First protection plate; 42. Second protection plate; 43. Connecting plate; 401. Cavity. DETAILED DESCRIPTION

[0030] 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 to 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.

[0031] 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.

[0032] 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.

[0033] 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.

[0034] 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.

[0035] 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.

[0036] 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.

[0037] 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.

[0038] 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.

[0039] 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.

[0040] 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 .

[0041] For the above-mentioned display module structure 10, Figure 3 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.

[0042] In some embodiments, Figure 2 As shown, the display module structure 10 further 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 being separated from the back plate 1, and also protect the back plate 1 and the periphery of the display panel 20. The outer frame 4 is provided with a cavity 401.

[0043] like Figure 3-4 As shown, the back plate 1 comprises a plate body 11 and a mounting portion 12 connected to the plate body 11, and the mounting portion 12 is located at the edge of the plate body 11. The mounting portion 12 is provided with a mounting cavity 124 with an opening 1241 on a side.

[0044] The mounting portion 12 includes a first plate 121 and a second plate 122 spaced apart along a first direction X. The first plate 121 and the second plate 122 can form a mounting cavity 124, and the mounting cavity 124 can accommodate a portion of the optical film 21. The first plate 121 is used to carry the display panel 20, and the second plate 122 is used to carry the backlight assembly 2. The first direction X refers to the thickness direction of the display module structure 10.

[0045] It can be understood that the limiting member 3 can be arranged on the first plate 121 or the second plate 122, and can be arranged specifically according to the needs. Figure 3-4 As shown, the limiting member 3 is arranged on the second plate body 122 .

[0046] In some embodiments, Figure 3-4 As 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 having a side opening 1241. 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.

[0047] 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.

[0048] In some embodiments, Figure 3-4 As shown, the backlight assembly 2 includes an optical film 21, and the optical film 21 extends into the mounting cavity 124 along the opening, 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.

[0049] In some embodiments, Figure 3-4 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.

[0050] In some embodiments, Figure 3-4 As 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 freely 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 film arching of the optical film 21, and does not affect the contraction of the optical film 21 when it returns to normal temperature. At the same time, the optical film 21 is hung on the limiting member 3 in a natural drooping state, reducing the risk of film arching.

[0051] 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.

[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 1 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 3-4 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 mounting hole 1201. The first plug-in portion 32 passes through the 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 support 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 is understandable that the installation position and installation method of the limiting member 3 and the mounting portion 12 can be set as needed, as long as the limiting member 3 can constrain the optical film 21. In order to facilitate understanding of the different situations of the installation position and installation method of the limiting member 3 and the mounting portion 12, the following is an example of one of the existing situations, but the structure and installation method of the limiting member 3 are not limited to this, as long as the optical film 21 can be constrained.

[0057] In some embodiments, Figure 3-4As shown, along the first direction X, the limiting member 3 is arranged on the side of the second plate 122 away from the first plate 121. Among them, the connecting portion 31 of the limiting member 3 is connected to the second plate 122, and the second plate 122 is provided with the above-mentioned mounting hole 1201, and the first plug-in portion 32 passes through the mounting hole 1201 and is inserted into the mounting hole 211. In this way, compared with the method of setting the limiting member 3 on the first plate 121, the limiting member 3 is set on the second plate 122 in this embodiment, which can reduce the influence of the limiting member 3 on the display panel 20 carried on the first plate 121, and at the same time does not occupy the space of the first plate 121 for carrying the display panel 20.

[0058] The limiting member 3 of the present embodiment can constrain the optical film 21 to prevent the optical film 21 from moving randomly relative to the back panel 1 in scenarios such as horizontal or vertical hanging. At the same time, since a margin gap is provided between the mounting hole 211 of the optical film 21 and the limiting member 3, when the optical film 21 expands in all directions due to heat, 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 an expansion margin for the optical film 21 to expand in all directions, thereby reducing the risk of the optical film 21 being blocked by the first plug-in portion 32 and being unable to expand in all directions once it expands due to heat, and avoiding the risk of the optical film 21 expanding in all directions due to heat and accumulating in the middle to cause a film arch.

[0059] The connection between the connection portion 31 and the second plate body 122 may be bonded by double-sided tape or by screws or bolts. Of course, other methods are also possible as long as the normal use of the digital signage 100 is not affected.

[0060] In some embodiments, the connection part 31 is fixed to the second plate 122 by bonding. Specifically, a bonding member is provided on one side of the connection part 31 facing the second plate 122, and the connection part 31 is bonded to the second plate 122 by the bonding member. In this way, under the blocking of the second plate 122, it is helpful to reduce the risk of the optical film 21 generating heat during operation and directly acting on the bonding member to cause the viscosity to decrease, and it is helpful to improve the firmness of the bonding between the connection part 31 and the second plate 122. The bonding member can be glue, or double-sided tape, or other materials, as long as the connection part 31 and the second plate 122 can be bonded.

[0061] In some embodiments, Figure 3-4As shown, the limiting member 3 also includes an extension portion 33, which is connected to one end of the connecting portion 31, and the extension portion 33 is configured to extend along the first direction X in a direction away from the second plate body 122. In other words, the extension portion 33 is protruded relative to the connecting portion 31 along the first direction X. In this way, it is beneficial for the outer frame to abut against the extension portion 33 during assembly, so that the connecting portion 31 and the second plate body 122 are firmly bonded. In addition, when the digital signage 100 is in a horizontal hanging state or a vertical hanging state, the extension portion 33 can abut against the inner wall surface of the outer frame of the digital signage 100, thereby playing a role in supporting the display module structure 10.

[0062] In some embodiments, Figure 3-4 As shown, along the first direction X, the distance d1 between the end of the extension portion 33 away from the connection portion 31 and the inner wall surface of the outer frame 4 is less than the size d2 of the first plug-in portion 32. In this way, if the connection portion 31 is connected to the second plate body 122 by an adhesive such as a double-sided adhesive, when the adhesive fails, that is, the connection portion 31 is separated from the second plate body 122, the risk of the first plug-in portion 32 being separated from the mounting hole 1201 and the position limiting member 3 falling off is avoided under the obstruction of the inner wall surface of the outer frame 4. In this embodiment, the outer frame 4 includes a first protective plate 41, a second protective plate 42 and a connecting plate 43, and the two ends of the connecting plate 43 are respectively connected to the first protective plate 41 and the second protective plate 42, and the first protective plate 41, the second protective plate 42 and the connecting plate 43 jointly construct a cavity 401, and the cavity 401 is used to accommodate the mounting portion 12. Among them, the distance between the end of the extension portion 33 away from the connection portion 31 and the second protective plate 42 is d1.

[0063] In some embodiments, the connecting portion 31 is provided with a first positioning structure (not shown), and the second plate body 122 is provided with a second positioning structure (not shown), and the first positioning structure and the second positioning structure cooperate with each other so that the connecting portion 31 can be quickly positioned and installed on the second plate body 122. In this embodiment, the first positioning structure is two positioning holes distributed at intervals, and the second positioning structure is two convex columns arranged at intervals, and one positioning hole is correspondingly sleeved on one convex column.

[0064] Of course, the first positioning structure and the second positioning structure are not limited to the positioning holes and bosses mentioned above, as long as they can achieve rapid positioning of the connecting portion 31 and the second plate 122. For example, the first positioning structure can be a boss, and the second positioning structure can be a groove.

[0065] In some embodiments, Figure 3-4As shown, the display module structure 10 further includes a first buffer 50, which is disposed on the mounting portion 12 and is used to carry the display panel 20. In this embodiment, the first buffer 50 is disposed on an end surface of the first plate body 121 away from 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.

[0066] 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.

[0067] In some embodiments, Figure 3 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 and is away from the limiting member 3, and is disposed toward the side of the optical film 21 on which the mounting hole 211 is disposed. 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.

[0068] 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.

[0069] 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, the mounting portion 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; A limiting member (3), comprising a connecting portion (31), a first plug-in portion (32) and an extending portion (33) connected to each other, wherein the connecting portion (31) is connected to the mounting portion (12), the mounting portion (12) is provided with a mounting hole (1201), the first plug-in portion (32) passes through the mounting hole (1201) and is inserted into the mounting hole (211), and the extending portion (33) is extended in a direction away from the mounting cavity (124); 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: A bonding piece is provided on one side of the connecting portion (31) facing the mounting portion (12), and the connecting portion (31) is bonded to the mounting portion (12) via the bonding piece.

3. The display module structure (10) according to claim 2, characterized in that: The bonding member includes double-sided tape or glue.

4. The display module structure (10) according to claim 1, characterized in that: The display module structure (10) further comprises an outer frame (4), the outer frame (4) being provided with a cavity (401), the mounting portion (12) being arranged in the cavity (401); along the direction in which the extension portion (33) extends, the distance between an end of the extension portion (33) that is away from the connecting portion (31) and the inner wall surface of the outer frame (4) is smaller than the size of the first plug-in portion (32).

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), wherein the first buffer component (50) is arranged on the mounting portion (12), and the first buffer component (50) is used for supporting the display panel.

6. The display module structure (10) according to claim 1, characterized in that: The display module structure (10) further comprises a second buffer component (60), the second buffer component (60) being connected to the inner wall surface of the mounting portion (12) and away from the limiting component (3), and facing a side of the optical film (21) provided with a mounting hole (211).

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 a 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 second plate body (122) is connected to the plate body (11); and the connecting portion (31) is connected to the second plate body (122).

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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