Display module and display device

Abstract

The utility model discloses a display module and a display device, the display module comprises a display module and a metal plate, the metal plate is integrally formed, the metal plate is provided with a magnetic attraction back face and an installation front face which are arranged oppositely, the display module is installed on the installation front face, and the magnetic attraction back face can be attracted by a magnetic attraction piece of a box body. According to the scheme, a traditional plastic bottom shell is improved into the metal plate capable of being attracted by the magnet of the box body, the thickness of the display module is reduced, and meanwhile the installation position of the display module relative to the box body is convenient to adjust.

Description

Technical Field

[0001] This application relates to the technical field of display screens, and particularly to a display module and a display device. Background Art

[0002] In the market, there are many types of commercial display screens. The small-pitch LED (Light Emitting Diode) display screen is one of the products that have attracted much attention. The small-pitch LED display screen refers to a display screen with an LED pitch of P2.5 and below. Compared with other commercial display products, the small-pitch LED display screen has a higher resolution, high picture clarity, can restore picture details to the greatest extent, and the small-pitch LED display screen has characteristics such as high refresh rate and high gray level. The picture display is more stable, the response speed is fast, and it can effectively remove image afterimages and water ripples, making the picture viewing experience smoother. The small-pitch LED display screen adopts a seamless splicing mode and can be customized with the required size and shape. In addition, it also has the advantages of long service life.

[0003] The LED display screen mainly includes a cabinet and a module. The module includes a plastic bottom case and a PCBA (Printed Circuit Board Assembly) lamp board. The PCBA is used to implement the display function. After the module is assembled as a whole, it is installed on the cabinet through the plastic bottom case. The existing module has a large thickness, and it is difficult to adjust the installation position of the module relative to the cabinet. Summary of the Utility Model

[0004] This application provides a display module and a display device, which can reduce the overall thickness of the display module and facilitate the adjustment of the position of the display module.

[0005] To solve the above technical problems, the technical solutions provided by this application are as follows:

[0006] In a first aspect, a display module is provided. The display module includes a display module and a metal plate. The metal plate is integrally formed. The metal plate has a magnetic back surface and an installation front surface that are opposite to each other. The display module is installed on the installation front surface, and the magnetic back surface can be adsorbed by a magnetic member of a cabinet.

[0007] According to an embodiment of this application, the metal plate is formed by stamping an iron plate.

[0008] According to an embodiment of the present application, the metal plate includes a flat plate portion and a plurality of concave portions. The plurality of concave portions are recessed towards the display module with respect to the flat plate portion; the flat plate portion includes an outer ring portion, a central portion, and a plurality of bridge portions. The central portion is disposed inside the outer ring portion at intervals, and the plurality of bridge portions are connected between the outer ring portion and the central portion; a plurality of the concave portions are located between the outer ring portion and the central portion, and the plurality of concave portions are spaced apart from each other and distributed along the circumference of the central portion. One of the concave portions is formed between two adjacent bridge portions.

[0009] According to an embodiment of the present application, the display module further includes a connecting member, and the metal plate and the display module are detachably connected through the connecting member.

[0010] According to an embodiment of the present application, the connecting member includes a connecting screw. A fixing hole is formed on the metal plate, an installation sleeve is provided on the display module, and the installation sleeve is provided with an internal thread. The installation sleeve penetrates into the fixing hole, and the connecting screw passes through the fixing hole and is fastened to the installation sleeve to realize the connection between the metal plate and the display module.

[0011] According to an embodiment of the present application, the installation sleeve is a copper column with an opening, and the copper column is welded to the back surface of the display module.

[0012] According to an embodiment of the present application, a power signal interface is provided on the back surface of the display module; a first through hole is formed in the metal plate at a position corresponding to the power signal interface to expose the power signal interface; the power signal interface extends out of the first through hole.

[0013] According to an embodiment of the present application, a plurality of electrolytic capacitors are provided on the back surface of the display module; a plurality of second through holes are formed in the metal plate at positions corresponding to the plurality of electrolytic capacitors to expose the electrolytic capacitors; the electrolytic capacitors extend out of the second through holes.

[0014] According to an embodiment of the present application, the thickness of the metal plate is 1-2 mm.

[0015] In a second aspect, a display device is provided, including a box body and the above-mentioned display module. The metal plate is located between the box body and the display module. A magnetic attraction member is provided on one side of the box body corresponding to the metal plate, and the metal plate can be attracted by the magnetic attraction member and fixed to the box body.

[0016] The beneficial effects of the present application are:

[0017] The display module and display device provided by this application include a display module and a metal plate. The traditional plastic bottom shell is improved to a metal plate that can be adsorbed by the magnet of the box body, and the magnet on the traditional plastic bottom shell is removed. Therefore, the overall thickness of the display module is reduced. Moreover, compared with the traditional plastic bottom shell material, the metal plate can be made thinner while ensuring the strength of the original plastic bottom shell, further reducing the overall thickness of the display module. In addition, the adsorption method between the metal plate and the magnet of the box body is a point-to-plane adsorption method. Compared with the traditional point-to-point adsorption method, this application can adjust the installation position of the metal plate relative to the box body within the adsorption range of the box body magnet, that is, it is convenient to adjust the installation position of the display module relative to the box body. Generally speaking, this application can reduce the thickness of the display module while facilitating the adjustment of the installation position of the display module relative to the box body. Description of the Drawings

[0018] To more clearly illustrate the technical solutions in the embodiments of this application, the following will briefly introduce the drawings required for the description of the embodiments. Obviously, the drawings in the following description are only some embodiments of this application. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on these drawings, where:

[0019] Figure 1 is the exploded structure diagram of the embodiment of the display module provided by this application;

[0020] Figure 2 is Figure 1 the front view of the display module;

[0021] Figure 3 is Figure 1 the rear view of the display module;

[0022] Figure 4 is Figure 1 the left view of the display module;

[0023] Figure 5 is Figure 1 the right view of the display module;

[0024] Figure 6 is Figure 1 the top view of the display module;

[0025] Figure 7 is Figure 1 the bottom view of the display module.

[0026] Description of the Reference Numerals:

[0027] Display module 10; display module 100; driving circuit board 110; power signal interface 120; electrolytic capacitor 130; mounting sleeve 140; metal plate 200; mounting front surface 200a; magnetic back surface 200b; first through hole 201; second through hole 202; fixing hole 203; flat part 210; outer ring part 211; central part 212; bridge part 213; recessed part 220; connecting member 300. Detailed implementation manners

[0028] The following will clearly and completely describe the technical solutions in the embodiments of the present application with reference to the accompanying drawings in the embodiments of the present application. Obviously, the described embodiments are only a part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present application.

[0029] Referring to "embodiments" herein means that the specific features, structures or characteristics described in connection with the embodiments can be included in at least one embodiment of the present application. The phrase appears in various places in the specification and does not necessarily refer to the same embodiment, nor is it an independent or alternative embodiment mutually exclusive with other embodiments. Those skilled in the art will explicitly and implicitly understand that the embodiments described herein can be combined with other embodiments.

[0030] The present application provides a display module. In one embodiment, refer to Figure 1 , Figure 1 is the split structure diagram of the embodiment of the display module provided by the present application, and in combination with Figures 2 to 7 , Figures 2 to 7 are respectively Figure 1 the front view, rear view, left view, right view, top view and bottom view of the display module. The display module 10 includes a display module 100 and a metal plate 200. The display module 100 is used to implement the display function. Therefore, the display module 100 is equivalent to playing the role of the PCBA lamp board in the traditional module. The metal plate 200 is used to fix the display module 100 to the box body. Therefore, the metal plate 200 is equivalent to playing the role of the bottom shell in the traditional module.

[0031] The display module 100 may include a driving circuit board 110, a plurality of LED (Light Emitting Diode) lamps and a chip. The plurality of LED lamps are arranged on the side of the driving circuit board 110 away from the metal plate 200, that is, the plurality of LED lamps are arranged on the front side of the driving circuit board 110. The LED lamps include red (R) light emitting diodes, green light emitting diodes (G) and blue light emitting diodes (B), and the light emitting diodes of each primary color are arranged in an array on the front side of the driving circuit board 110 to form an LED dot matrix. The chip is arranged on the side of the driving circuit board 110 facing the metal plate 200, that is, the chip is arranged on the back side of the driving circuit board 110, and the chip is electrically connected to the plurality of LED lamps through the driving circuit board 110 to control the light emission of each LED lamp, thereby realizing the display function of the display module 100.

[0032] The metal plate 200 is integrally formed, and has an installation front 200a and a magnetic back 200b that are arranged opposite to each other. The display module 100 is installed on the installation front 200a, and the magnetic back 200b can be adsorbed by the magnetic member of the box, and the magnetic member can be a magnet. Since the magnetic back 200b of the metal plate 200 can be adsorbed by the magnetic member, the material of the metal plate 200 can be any metal that can generate magnetic attraction with the magnetic member, such as iron (Fe), cobalt (Co), nickel (Ni) and their alloys. Considering the cost factor, iron material can be selected.

[0033] In the field of display modules, there are two main structures of existing display modules: the first one includes a plastic bottom shell and a PCBA light board, the PCBA light board is used to realize the display function of the display module 100 (i.e., the display module 100 of the present application), the plastic bottom shell can strengthen the overall strength of the module, so that the display flatness of the screen is better, but the overall thickness of the module is 8mm-15mm, which is relatively thick; the other one only includes a PCBA light board, and the structure of the plastic bottom shell is cancelled, so the overall thickness of the module can be reduced to 2mm-5mm, but due to the lack of the reinforcement effect of the plastic bottom shell, the overall strength of the module is low, the deformation is very serious, and the display flatness of the screen is very poor. The module and the box body are fixed in a magnet-magnet manner, that is, a plurality of magnets are arranged on the box body, and the plastic bottom shell of the first module is correspondingly arranged on the plastic bottom shell, and the magnets on the plastic bottom shell correspond to the magnets on the box body one by one, and the second module directly sets a plurality of magnets on the light board, and the magnets on the light board are adsorbed one by one with the magnets on the box body. This magnet-to-magnet point-to-point fixing method between the module and the box makes it difficult to adjust the position of the module because the magnets on the box and the module will be misaligned when the module needs to be positioned during on-site installation, causing the module to fall.

[0034] In this application, a metal plate 200 is used as the bottom case. The metal plate 200 can be directly adsorbed to the magnets on the box body, eliminating the magnets on the traditional bottom case. Therefore, the overall thickness of the display module 10 is reduced. Moreover, compared with the traditional plastic bottom case material, the metal plate 200 can be made thinner while ensuring the strength of the original plastic bottom case, further reducing the overall thickness of the display module 10.

[0035] In addition, the adsorption method between the metal plate 200 of this application and the magnets on the box body is a point-to-plane adsorption method. Compared with the traditional point-to-point adsorption method, in this application, the installation position of the metal plate 200 can also be adjusted within the adsorption range of the box body magnets without affecting the connection between the metal plate 200 and the box body.

[0036] Refer to again Figure 1 , in one embodiment, the metal plate 200 is formed by stamping an iron plate. Specifically, the metal plate 200 includes a flat plate portion 210 and a plurality of recessed portions 220. The plurality of recessed portions 220 are recessed towards the display module 100 compared with the flat plate portion 210. The flat plate portion 210 includes an outer ring portion 211, a central portion 212, and a plurality of bridge portions 213. The central portion 212 is disposed at intervals inside the outer ring portion 211, and the plurality of bridge portions 213 are connected between the outer ring portion 211 and the central portion 212. The plurality of recessed portions 220 are located between the outer ring portion 211 and the central portion 212, and the plurality of recessed portions 220 are spaced apart from each other and distributed along the circumference of the central portion 212. A recessed portion 220 is formed between two adjacent bridge portions 213. Figure 1 Illustrates the case where the number of the recessed portions 220 and the bridge portions 213 is four. In this embodiment, the metal plate 200 has a structure with a plurality of recesses, which has higher strength and better aesthetics than a solid flat plate structure. Especially for the module products sold independently, the aesthetics of the metal plate 200 can play a certain positive role in the sale of the module products. The recessed structure of the metal plate 200 can also increase the anti-slip function when holding.

[0037] All the edges on the side of the metal plate 200 facing away from the display module 100 are chamfered to remove sharp edges, increasing the safety during the installation of the metal plate 200, and can also prevent stress concentration of the metal plate 200 to a certain extent, reducing the crack phenomenon of the metal plate 200.

[0038] In one embodiment, the thickness of the metal plate 200 is 1-2 mm. Exemplarily, it can be 1 mm, 1.2 mm, 1.4 mm, 1.6 mm, 1.8 mm, 2 mm, etc. The thickness of the metal plate 200 in this embodiment is only 1-2 mm, which is significantly less than the thickness of the traditional plastic bottom case, facilitating the reduction of the overall thickness of the display module 10. And when the metal plate 200 has a thickness of 1-2 mm, the strength of the metal plate 200 can still be ensured.

[0039] In one embodiment, the surface of the metal plate 200 is subjected to an anti-oxidation treatment, which can effectively isolate the contact between the metal plate 200 and external oxygen, moisture, and pollutants, thereby achieving the effect of anti-corrosion. The anti-oxidation treatment can be carried out by means of coating, painting, electrophoresis, or the like.

[0040] And in combination Figures 2 to 7 , it can be seen that the outer edge of the metal plate 200 is located inside the outer edge of the display module 100. Therefore, the metal plate 200 can be completely hidden behind the display module 100 to facilitate seamless splicing between the display modules 100.

[0041] The overall shape of the display module 10 can be rectangular and can be set to dimensions such as 16CM×32CM according to actual needs. Correspondingly, the shapes of the display module 100 and the metal plate 200 are both rectangular. In specific applications, the display module 10 can also be other shapes, such as circular, triangular, or other polygons, not limited to the rectangular structure.

[0042] In one embodiment, a power signal interface 120 is provided on the back of the display module 100. A first through hole 201 is opened in the metal plate 200 at a position corresponding to the power signal interface 120 to expose the power signal interface 120. The power signal interface 120 extends out of the first through hole 201, and the first through hole 201 can be provided at the central portion 212 of the metal plate 200. The power signal interface 120 is used for wiring between the display module 100 and the outside.

[0043] In one embodiment, a plurality of electrolytic capacitors 130 are further provided on the back of the display module 100. A plurality of second through holes 202 are opened in the metal plate 200 at positions corresponding to the plurality of electrolytic capacitors 130 to expose the electrolytic capacitors 130, and the electrolytic capacitors 130 extend out of the second through holes 202.

[0044] Referring again to Figure 1 , in one embodiment, the display module 10 further includes a connecting member 300. The metal plate 200 and the display module 100 are detachably connected through the connecting member 300.

[0045] Specifically, the connecting member 300 includes a connecting screw. A fixing hole 203 is opened on the metal plate 200, and an installation sleeve 140 is provided on the display module 100. The installation sleeve 140 is provided with internal threads. The installation sleeve 140 penetrates into the fixing hole 203, and the connecting screw passes through the fixing hole 203 and is fastened to the installation sleeve 140 to realize the connection and fixation between the metal plate 200 and the display module 100.

[0046] To ensure the connection strength between the display module 100 and the metal plate 200, multiple connecting members 300 can be provided. The positions and quantities of the connecting members 300, the mounting sleeves 140, and the fixing holes 203 correspond to each other one by one. In one embodiment, the fixing holes 203 can be provided on the outer ring portion 211 and the central portion 212 of the metal plate 200. It should be understood that in other embodiments, the connection and fixation method between the metal plate 200 and the display module 100 is not limited to the above-mentioned connection through the connecting members 300, and other methods such as snap connection and bonding can also be used.

[0047] The mounting sleeve 140 can be a copper column provided with an opening, and the copper column is welded to the back surface of the display module 100. Specifically, the copper column is welded to the back surface of the driving circuit board 110 of the display module 100.

[0048] The specific steps for assembling the display module 100 and the metal plate 200 are as follows:

[0049] Apply solder paste at the position of the copper column pads, place the surface-mounted copper column on the corresponding pads, and fix the copper column by means of reflow soldering and temperature rise welding, so that the copper column and the driving circuit board 110 of the display module 100 are connected and fixed as a whole, ensuring that each copper column pad has a copper column attached and is firmly fixed without shaking.

[0050] Align the metal plate 200 with the display module 100 to which the copper columns have been attached, ensure that all copper columns can correspond to the fixing holes 203 on the metal plate 200, and ensure that all electrolytic capacitors 130 can correspond to the second through holes 202 of the metal plate 200. Use connecting screws to pass through the fixing holes 203 of the metal plate 200 one by one and tighten them on the copper columns on the display module 100. During the process of tightening the connecting screws, attention should be paid to keeping the force uniform to avoid damage to the display module 100 or the metal plate 200 caused by excessive force. Check the tightening condition of all connecting screws to ensure that the connection between the metal plate 200 and the display module 100 is tight without shaking. After completing the above installation steps, carefully check the entire display module 10 to ensure that all components are installed in place without omission or damage. Conduct necessary tests on the display module 10, such as electrical performance tests and brightness tests, to ensure that its performance meets the requirements.

[0051] Through the above installation method, the display module 100 and the metal plate 200 can be accurately and quickly completed during the installation process, improving production efficiency, and at the same time ensuring the quality and stability of the display module 10. This method is applicable to large-scale production environments, as well as manual production and repair occasions.

[0052] The present application also provides a display device, which includes a cabinet and a display module. The specific structure of the display module refers to the above embodiments. Since this display device adopts all the technical solutions of the above embodiments, it has at least all the beneficial effects brought by the technical solutions of the above embodiments, which will not be elaborated one by one here. Among them, a metal plate 200 is located between the cabinet and the display module 100. A magnetic attraction member is provided on one side of the cabinet corresponding to the metal plate 200. The metal plate 200 can be attracted by the magnetic attraction member so that the entire display module 10 is fixed to the cabinet. The magnetic attraction member can be a magnet, and multiple magnetic attraction settings are provided to increase the connection strength between the metal plate 200 and the cabinet. This display device can be an LED commercial display screen.

[0053] The terms "first", "second", and "third" in the present application are only for descriptive purposes and cannot be construed as indicating the quantity of the indicated technical features. Thus, the features defined with "first", "second", and "third" may explicitly or implicitly include at least one of such features. All directional indications (such as up, down, left, right, front, back, front side, back side...) in the embodiments of the present application are only used to explain the relative positional relationship and movement conditions between components in a specific posture (as shown in the drawings). If the specific posture changes, the directional indications will also change accordingly. In addition, the terms "include" and "have" and any variations thereof are intended to cover non-exclusive inclusion. For example, a process, method, system, product, or device that includes a series of steps or units is not limited to the listed steps or units, but optionally further includes steps or units not listed, or optionally further includes other steps or units inherent to these processes, methods, products, or devices.

[0054] The above are only the embodiments of the present application, and do not limit the patent scope of the present application. Any equivalent structural or equivalent process transformation made by using the specification and drawings of the present application, or directly or indirectly applied in other related technical fields, shall be equally included in the patent protection scope of the present application.

Claims

1. A display module, characterized in that, The display module includes: A display module; A metal plate, which is integrally formed. The metal plate has a magnetically attractable back surface and a mounting front surface arranged opposite to each other. The display module is mounted on the mounting front surface, and the magnetically attractable back surface can be attracted by the magnetic member of the box body.

2. The display module according to claim 1, wherein The metal plate is formed by stamping an iron plate.

3. The display module according to claim 1 or 2, wherein The metal plate includes a flat plate portion and a plurality of recessed portions. The plurality of recessed portions are recessed towards the display module compared with the flat plate portion; The flat plate portion includes an outer ring portion, a central portion, and a plurality of bridge portions. The central portion is spaced inside the outer ring portion, and the plurality of bridge portions are connected between the outer ring portion and the central portion; A plurality of the recessed portions are located between the outer ring portion and the central portion, and the plurality of recessed portions are spaced from each other and distributed along the circumferential direction of the central portion. One of the recessed portions is formed between two adjacent bridge portions.

4. The display module according to claim 1, characterized in that, The display module further includes a connecting member. The metal plate and the display module are detachably connected through the connecting member.

5. The display module according to claim 4, wherein The connecting member includes a connecting screw. A fixing hole is formed on the metal plate, and a mounting sleeve is provided on the display module. The mounting sleeve is provided with internal threads. The mounting sleeve penetrates into the fixing hole, and the connecting screw passes through the fixing hole and is fastened to the mounting sleeve to realize the connection between the metal plate and the display module.

6. The display module according to claim 5, wherein The mounting sleeve is a copper column with an opening, and the copper column is welded to the back surface of the display module.

7. The display module according to claim 1, wherein A power signal interface is provided on the back surface of the display module; A first through hole is formed on the metal plate corresponding to the position of the power signal interface to expose the power signal interface; The power signal interface extends out of the first through hole.

8. The display module according to claim 1 or 7, characterized in that, A plurality of electrolytic capacitors are provided on the back surface of the display module; A plurality of second through holes are formed on the metal plate corresponding to the positions of the plurality of electrolytic capacitors to expose the electrolytic capacitors; The electrolytic capacitors extend out of the second through holes.

9. The display module according to claim 1, wherein The thickness of the metal plate is 1 - 2 mm.

10. A display device, characterized in that, It includes a box body and the display module according to any one of claims 1 - 9. The metal plate is located between the box body and the display module. A magnetic member is provided on one side of the box body corresponding to the metal plate, and the metal plate can be attracted by the magnetic member and fixed to the box body.

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