Display device

Abstract

The application belongs to the technical field of display, and particularly relates to a display device, which comprises a display screen and an electric track assembly, the electric track assembly is formed on a non-display side of the display screen, the electric track assembly comprises a protective sleeve, a first electric track and a second electric track, the protective sleeve is provided with a mounting opening in communication with the inside of the protective sleeve, the first electric track and the second electric track are mounted in the protective sleeve through the mounting opening, the second electric track is arranged below the first electric track in a spaced manner, the first electric track and the second electric track are electrically connected with the display screen and are configured to supply power to the display screen when connected with an external power supply, a through hole is arranged at the bottom of the protective sleeve, and the second electric track is movably connected with the protective sleeve to open or close the through hole. The first electric track and the second electric track in the electric track assembly are integrated on the non-display side of the display screen, so that the problems of great combination difficulty, large space occupation and the like caused by the separation of the display screen and the electric track assembly are effectively solved.

Description

TECHNICAL FIELD

[0001] The application belongs to the technical field of display, and particularly relates to a display device. BACKGROUND

[0002] An electronic price tag is an electronic display device with information receiving and sending functions, which is usually placed on a shelf, combined with a wireless communication module and a low-power chip to realize data interaction with a background management system, and is used for displaying real-time commodity prices, promotion information, pictures, two-dimensional codes and the like; the electronic price tag can reduce the workload of manual price tag replacement and reduce operation cost. In the existing electronic display device, a display screen and a conductive track are separated, combined installation is difficult and occupies space, and the electronic display device is not suitable for small scenes. SUMMARY

[0003] The application aims to solve the problem that, in the related art, a display screen and a conductive track are separated, combined installation is difficult and occupies space, and the electronic display device is not suitable for small scenes.

[0004] The application provides a display device, which comprises a display screen, an electric track assembly formed on a non-display side of the display screen, the electric track assembly comprising a protective sleeve, a first electric track and a second electric track, the protective sleeve being provided with a mounting opening in communication with the inside of the protective sleeve, the first electric track and the second electric track being mounted in the protective sleeve through the mounting opening, and the second electric track being arranged below the first electric track, the first electric track and the second electric track being electrically connected with the display screen and being configured to supply power to the display screen when connected with an external power supply; wherein the bottom of the protective sleeve is provided with a through hole, and the second electric track is movably connected with the protective sleeve to open or close the through hole.

[0005] In an example embodiment of the application, the second electric track is rotatably connected with the protective sleeve through a rotating mechanism; wherein the mounting opening is formed on the side of the protective sleeve away from the display screen, and the second electric track is configured to rotate to the side close to the mounting opening to open the through hole.

[0006] In an example embodiment of the application, the mounting opening has an upper opening surface close to the first electric track and a lower opening surface close to the second electric track, wherein the upper surface of the second electric track is not lower than the lower opening surface.

[0007] In an example embodiment of the application, the display device further comprises a controller, the controller being electrically connected with the rotating mechanism; wherein the rotating mechanism is configured to be driven to rotate the protective sleeve to the mounting opening at a target time interval under the control of the controller.

[0008] In an example embodiment of the present application, the display device further comprises a detection member arranged on the protective sleeve and configured to detect the cleanliness of the second electric track; and a controller electrically connected to the detection member, the controller being configured to control the rotating mechanism to drive the second electric track to rotate to the mounting opening when the cleanliness is less than a target value.

[0009] In an example embodiment of the present application, the detection member is configured to detect the cleanliness of the second electric track every target time under the control of the controller.

[0010] In an example embodiment of the present application, the display device further comprises a main board, one end of the main board being connected to an external power supply and the other end being connected to the first electric track and the second electric track.

[0011] In an example embodiment of the present application, the display device comprises a plurality of display screens and a plurality of electric track assemblies, the display screens and the electric track assemblies corresponding to each other, the plurality of display screens being arranged in sequence along the extending direction of the first electric track, and the first electric track and the second electric track on one of the adjacent display screens being connected to the first electric track and the second electric track on the other of the adjacent display screens through a connecting structure.

[0012] In an example embodiment of the present application, the first electric track and the second electric track are arranged at the upper and lower ends of the display screen respectively, and the display device further comprises a first connecting structure and a second connecting structure located at the opposite ends of the display screen in the length direction, the first connecting structure and the second connecting structure each comprising a first conductive wire connected to the first electric track and a second conductive wire connected to the second electric track; when the adjacent display screens are connected, the first conductive wire and the second conductive wire of the first connecting structure on one of the display screens are connected to the first conductive wire and the second conductive wire of the second connecting structure on the other of the display screens through the connecting structure.

[0013] In an example embodiment of the present application, the first electric track and the second electric track are arranged at the back side of the display screen, the first electric track and the second electric track on one of the adjacent display screens being connected to one end of the connecting structure, and the first electric track and the second electric track on the other of the adjacent display screens being connected to the other end of the connecting structure.

[0014] The display device of the present application has at least the following beneficial effects:

[0015] The present application effectively solves the problems of great combination difficulty, more occupied space and the like caused by the separation of the display screen and the electric rail assembly by integrating the first electric rail and the second electric rail in the electric rail assembly on the non-display side of the display screen, significantly improves the space adaptability, and makes the display device more suitable for small application scenarios. In addition, through the through hole at the bottom of the protective sleeve and the arrangement of the second electric rail below the first electric rail, the gravity effect can be utilized. When the protective sleeve and the second electric rail need to be cleaned, the second electric rail is used to open the through hole, so that the dust, accumulated water and the like accumulated in the second electric rail and the protective sleeve are discharged through the through hole, the risk of poor conduction or electric shock caused by long-term accumulation is reduced, and the cleaning effect of the display device is improved. When cleaning is not needed, the through hole is closed, which can reduce the entry of foreign matters into the inside of the protective sleeve, and cooperate with the protective sleeve to maintain the anti-electric shock function.

[0016] Other characteristics and advantages of the present application will become apparent from the following detailed description, or will be learned by practice of the present application.

[0017] It should be understood that the above general description and the following detailed description are only exemplary and explanatory, and cannot limit the present application. BRIEF DESCRIPTION OF DRAWINGS

[0018] The drawings incorporated into the specification and constituting a part of the specification show embodiments consistent with the present application and, together with the specification, serve to explain the principles of the present application. Obviously, the drawings in the following description are only some embodiments of the present application, and other drawings can be obtained by those skilled in the art without creative labor on the basis of these drawings.

[0019] Figure 1 A structure schematic diagram showing that the first electric rail and the second electric rail are arranged at the upper and lower ends of the display screen in some embodiments is shown.

[0020] Figure 2 A structure schematic diagram showing that the first electric rail and the second electric rail are arranged on the back side of the display screen in some embodiments is shown.

[0021] Figure 3 A structure schematic diagram showing that the first electric rail and the second electric rail are arranged in the protective sleeve in some embodiments is shown.

[0022] Figure 4 A structure schematic diagram showing that the second electric rail is connected with the protective sleeve through a rotating mechanism in some embodiments is shown.

[0023] Figure 5 A structure schematic diagram showing that a detection member is arranged on the protective sleeve in some embodiments is shown.

[0024] Figure 6 A structure schematic diagram showing that adjacent first electric rails and second electric rails are connected through a connecting line in some embodiments is shown.

[0025] Figure 7 The diagram shows a structural schematic of some embodiments where adjacent first and second electrical rails are connected via a first plug, a conductive wire, and a second plug.

[0026] Explanation of reference numerals in the attached figures:

[0027] 100. Display device; 110. Display screen; 120. Electric rail assembly; 121. Protective sleeve; 1210. Mounting port; 1210a. Upper opening surface; 1210b. Lower opening surface; 1211. Through hole; 1212. First groove; 1213. Second groove; 122. First electric rail; 123. Second electric rail; 130. Rotating mechanism; 140. Detection component; 150. Main board; 160. Connection structure; 161. Connecting wire; 162. First plug; 163. Second plug; 164. Conducting wire; 171. First conductive wire; 172. Second conductive wire; 180. Decorative component; 200. External power supply. Detailed Implementation

[0028] Exemplary embodiments will now be described more fully with reference to the accompanying drawings. However, these exemplary embodiments can be implemented in many forms and should not be construed as limited to the examples set forth herein; rather, these embodiments are provided to make this application more comprehensive and complete, and to fully convey the concept of the exemplary embodiments to those skilled in the art.

[0029] In this application, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this application, "multiple" means two or more, unless otherwise explicitly specified.

[0030] In this application, unless otherwise expressly specified and limited, the terms "assembly," "connection," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this application according to the specific circumstances.

[0031] Furthermore, the described features, structures, or characteristics can be combined in any suitable manner in one or more embodiments. Numerous specific details are provided in the following description to give a thorough understanding of embodiments of this application. However, those skilled in the art will recognize that the technical solutions of this application can be practiced without one or more of the specific details, or other methods, components, apparatuses, steps, etc., can be employed. In other instances, well-known methods, apparatuses, implementations, or operations are not shown or described in detail to avoid obscuring various aspects of this application.

[0032] This application provides a display device 100, which can be an electronic price tag or electronic product label, etc. It can be placed on a shelf and, combined with a wireless communication module (such as Bluetooth, WiFi, etc.) and a low-power chip, enables data interaction with a back-end management system to display product prices, images, QR codes, and other content in real time. This reduces the workload of manually changing price tags and lowers operating costs.

[0033] In some embodiments, see Figure 1 or Figure 2 As shown, the display device 100 may include a display screen 110. The display screen 110 may be an e-ink screen or a liquid crystal display (LCD). The LCD screen 110 can support full-color display, capable of displaying high-definition video, animation, and images. It has high contrast and refresh rate, enabling rapid content updates and is suitable for dynamic information display.

[0034] In some embodiments, see Figure 1 or Figure 2 As shown, the display device 100 may further include an electrical track assembly 120. The electrical track assembly 120 can supply power to the display screen 110, enabling the display screen 110 to display content such as product prices, images, and QR codes. The electrical track assembly 120 can be formed on the non-display side of the display screen 110. For example, the electrical track assembly 120 can be located at the top and bottom ends of the display screen 110; the electrical track assembly 120 can also be located on the back side of the display screen 110. By placing the electrical track assembly 120 on the non-display side of the display screen 110, interference from the electrical track assembly 120 with the normal display of the display screen 110 can be reduced, making it suitable for scenarios with limited space, such as supermarkets and shelves.

[0035] In some embodiments, see Figure 3As shown, the electrical rail assembly 120 may include a protective sleeve 121, a first electrical rail 122, and a second electrical rail 123. The protective sleeve 121 has an installation port 1210 communicating with its interior. The first electrical rail 122 and the second electrical rail 123 are installed inside the protective sleeve 121 through the installation port 1210, and the second electrical rail 123 is spaced below the first electrical rail 122. The first electrical rail 122 and the second electrical rail 123 are electrically connected to the display screen 110. The first electrical rail 122 and the second electrical rail 123 can be connected to an external power supply 200 and supply power to the display screen 110 through the first electrical rail 122 and the second electrical rail 123 to achieve display.

[0036] It is understandable that by placing the first electric rail 122 and the second electric rail 123 inside the protective sleeve 121, the protective sleeve 121 can serve as a means of preventing electric shock.

[0037] Furthermore, by integrating the first and second electrical rails in the electrical rail assembly onto the non-display side of the display screen, the problems of difficult integration and large space occupation caused by separating the display screen from the electrical rail assembly are effectively solved, significantly improving space adaptability and making this display device more suitable for small application scenarios.

[0038] In some embodiments, see Figure 3 As shown, the bottom of the protective sleeve 121 is provided with a through hole 1211. The second electrical rail 123 can be movably connected to the protective sleeve 121 to open or close the through hole 1211. Through the through hole 1211 at the bottom of the protective sleeve 121 and the arrangement of the second electrical rail 123 below the first electrical rail 122, gravity can be used to open the through hole 1211 through the second electrical rail 123 when cleaning the protective sleeve 121 and the second electrical rail 123 is required. This allows dust, water, etc. accumulated in the second electrical rail 123 and the protective sleeve 121 to be discharged through the through hole 1211, reducing or even eliminating the risk of poor conductivity or electric shock caused by long-term accumulation, and improving the cleaning effect of the display device 100. When cleaning is not required, closing the through hole 1211 can reduce the entry of external debris into the protective sleeve 121, while also maintaining the anti-electric shock function in conjunction with the protective sleeve 121.

[0039] It can be understood that the second electric rail 123 can be connected to the protective sleeve 121 by means of rotation, insertion, sliding or extension.

[0040] In some embodiments, see Figure 1As shown, the first and second electrical rails 122 and 123 can be positioned at the top and bottom of the display screen 110 to reduce obstruction of the display screen 110. This lowers the obstruction of the front of the display screen 110, ensuring that the display functions of product information and dynamic content are not interfered with, and guaranteeing the integrity and clarity of the information display. Furthermore, the top and bottom positions of the electrical rails are suitable for scenarios with limited space, such as shopping mall shelves, without requiring additional space. The lower rail can utilize gravity and, combined with a rotating structure and other cleaning designs, more easily discharge accumulated dust and water, reducing the risk of poor conductivity and improving the stability of the rail operation.

[0041] In other embodiments, see Figure 2 As shown, the first electrical rail 122 and the second electrical rail 123 can also be located on the back side of the display screen 110. The back side is the non-display area of ​​the display screen. Setting the electrical rails here can avoid interference with the display function of the front of the screen and ensure the integrity and clarity of the display of product information, dynamic content, etc. As a relatively concealed position, the back side electrical rails can reduce direct contact with the outside world and reduce the risk of accidental touch by people in shopping malls and other scenarios.

[0042] In some embodiments, see Figure 3 and Figure 4 As shown, the second electrical rail 123 can be rotatably connected to the protective sleeve 121 via the rotating mechanism 130. The mounting port 1210 is located on the side of the protective sleeve 121 away from the display screen 110. The second electrical rail 123 is configured to rotate towards the side where the mounting port 1210 is located to open the through hole 1211. The rotating mechanism 130 provides stable rotational support for the second electrical rail 123, ensuring reliable opening and closing of the through hole 1211. The placement of the mounting port 1210 away from the display screen 110 and the design of the second electrical rail 123 rotating towards this side reduce interference with the front display function of the display screen 110 and make rotation operations easier to perform in non-display areas, facilitating manual or automatic control.

[0043] Understandably, when the second rail 123 rotates to open the through hole 1211, the accumulated dust and water on the rail can be discharged through the through hole 1211 using the effect of gravity, effectively solving the problem of poor conductivity caused by long-term accumulation. When the through hole 1211 is closed, the protective sleeve 121 can maintain the enclosure of the first rail 122 and the second rail 123, continuing to play a role in preventing electric shock, thereby improving the stability and safety of the strip screen rails and adapting to the usage needs of scenarios such as shopping mall sales areas.

[0044] In some embodiments, see Figure 3As shown, the protective sleeve 121 has a first groove 1212 (not shown in the figure) and a second groove 1213 (not shown in the figure) inside. The first groove 1212 and the second groove 1213 are arranged opposite to each other, and both the first groove 1212 and the second groove 1213 are connected to the mounting port 1210. The first groove 1212 is used to install the first electric rail 122, and the second groove 1213 is used to install the second electric rail 123. By installing the first electric rail 122 and the second electric rail 123 into the first groove 1212 and the second groove 1213 respectively, the first electric rail 122 and the second electric rail 123 can be precisely positioned and stably limited, ensuring that their relative positions are fixed, reducing the impact of installation offset on the circuit conduction stability, and adapting to the electrical connection requirements when the strip screen is connected in series.

[0045] It should be understood that the design of the first groove 1212 and the second groove 1213 communicating with the mounting port 1210 facilitates the quick insertion of the electrical rail into the corresponding groove through the mounting port 1210, simplifying the installation process and reducing assembly difficulty. Simultaneously, the groove structure enhances the protective sleeve 121's coverage of the electrical rail, reducing direct contact between external dust and moisture and the rail. Combined with the protective sleeve 121's anti-electric shock function, this further reduces the risk of poor conductivity and electric shock, improving the stability and safety of the integrated electrical rail strip screen in scenarios such as shopping mall sales areas.

[0046] In addition, the second rail 123 may include a rotating part, and the inner sidewall of the second groove 1213 is provided with a connecting part. The rotating part can be rotatably connected to the connecting part so that the second rail 123 can rotate relative to the protective sleeve to open or close the through hole 1211.

[0047] In some embodiments, see Figure 3 As shown, the mounting port 1210 has an upper opening surface 1210a near the first electric rail 122 and a lower opening surface 1210b near the second electric rail 123. The upper surface of the second electric rail 123 is not lower than the lower opening surface 1210b. This design, where the upper surface of the second electric rail 123 is not lower than the lower opening surface 1210b, reduces the formation of a recessed structure at the mounting port 1210 where the second electric rail 123 is lower than the opening surface. This reduces the accumulation of dust and moisture on the surface of the second electric rail 123 when entering from the mounting port 1210 side. Furthermore, in conjunction with the rotating mechanism 130 between the second electric rail 123 and the protective strip, it facilitates the discharge of debris and prevents poor conductivity due to accumulation.

[0048] It is understandable that although the upper surface of the second electric rail 123 is higher than the lower opening surface 1210b, the second electric rail 123 is placed in the second groove 1213 of the protective sleeve 121, and is a certain distance away from the mounting port 1210, which can effectively prevent users from accidentally touching the second electric rail 123 and causing electric shock.

[0049] In some embodiments, the display device 100 may further include a controller. The controller may be electrically connected to the rotation mechanism 130. The rotation mechanism 130 is configured to drive the protective sleeve 121 to rotate toward the mounting opening 1210 at target intervals under the control of the controller. That is, by controlling the rotation mechanism 130 to drive the protective sleeve 121 to rotate at regular intervals, the controller can achieve periodic automatic opening and closing of the through hole 1211, which can periodically clean the dust and water accumulated on the electric rail without manual intervention. This is suitable for scenarios such as shopping mall sales areas that require continuous operation and have high manual maintenance costs, effectively reducing the risk of poor conductivity and electric shock caused by long-term accumulation.

[0050] In other embodiments, see Figure 5 As shown, the display device 100 may further include a detection element 140 and a controller. The detection element 140 may be disposed on the protective sleeve 121, and the detection element 140 is configured to detect the cleanliness of the second electric rail 123. The controller is electrically connected to the detection element 140, and the controller can receive the cleanliness of the second electric rail 123 detected by the detection element 140, and control the rotation mechanism 130 to drive the second electric rail 123 to rotate towards the mounting port 1210 when the cleanliness is less than the target value. The detection element 140 can monitor the cleanliness of the second electric rail 123 in real time, and the controller can trigger the rotation mechanism 130 to act according to the cleanliness information, realizing intelligent and precise cleaning without relying on manual judgment or timed cleaning, which is more in line with the continuous operation needs of scenarios such as shopping mall sales areas.

[0051] It should be noted that a cleanliness level below the target value means that a significant amount of dust, moisture, or other contaminants have accumulated on the surface of the second electric rail. The target value can be understood as a preset cleanliness safety threshold. When the cleanliness level is below this threshold, it indicates that the amount of contaminants accumulated has reached a level that may affect the normal conduction of the electric rail or increase the risk of electric shock. At this time, the controller triggers the rotation mechanism 130 to operate based on the signal from the detection element 140, driving the second electric rail 123 to rotate toward the side where the mounting port 1210 is located, directly opening the through hole 1211 at the bottom of the protective sleeve 121, so as to clean the protective sleeve 121 and the second electric rail 123.

[0052] Furthermore, the cleanliness value can be selected according to different embodiments, and no specific limitation is imposed here.

[0053] Understandably, the second rail 123 rotates towards the mounting port 1210 to open the through hole 1211, allowing accumulated debris to be discharged promptly. Combined with the anti-electric shock function of the protective sleeve 121, this effectively maintains the stability of the rail's conductivity, further enhancing the safety and ease of maintenance of the integrated rail strip screen.

[0054] In addition, the detection element 140 can detect the cleanliness of the upper surface of the second electric rail 123, and can also detect the cleanliness of the side surface or the bottom surface of the second electric rail 123, which can be designed according to different embodiments.

[0055] In some embodiments, the detection element 140 detects the cleanliness of the upper surface of the second rail 123. Since the upper surface of the second rail 123 is the area where dust, moisture, and small debris in the environment most easily settle and adhere, and due to gravity, suspended particles in the air will naturally fall and accumulate on the upper surface, and if there are gaps in the protective sleeve 121 or the ambient humidity is high, condensed water droplets are more likely to remain on the upper surface. Furthermore, the upper surface of the second rail 123 is usually a critical area in contact with the plug's conductive contacts; contaminants will increase contact resistance, leading to a decrease in current transmission efficiency, and in severe cases, may cause poor contact, overheating, and other problems. Long-term accumulation of moisture may also increase the risk of short circuits. Therefore, detecting the cleanliness of the upper surface can accurately pinpoint the contaminated location that poses the greatest threat to the normal operation of the rail, achieving precise detection.

[0056] In some other embodiments, the detection element 140 may be a camera that can be always on to detect the cleanliness of the upper surface of the second rail 123 in real time.

[0057] For example, see Figure 5 As shown, the detection component 140 can be an intelligent recognition camera, which can be installed on the side of the protective sleeve 121 where the first electric rail 122 is located. The information acquisition camera of the detection component 140 faces the second electric rail 123, so as to detect the dust and water accumulation on the surface of the second electric rail 123 in real time. The detected dust and water accumulation information is transmitted to the controller, and the controller decides whether to control the rotation mechanism 130 to open or close.

[0058] It should be noted that the detection element 140 can also be a weight detector. It can be positioned between the second electric rail 123 and the second groove 1213 to detect the weight of the second electric rail 123 and transmit the detected weight information to the controller. The controller compares the detected weight information with preset weight information and controls the operation of the drive mechanism based on the comparison. Understandably, when water or dust accumulates on the surface of the second electric rail 123, the weight detector will change, thus determining whether there is dust or water accumulation on the surface of the second electric rail 123, allowing for real-time cleaning of the second electric rail 123.

[0059] Furthermore, the detection element 140 can also be a humidity detector. It can be installed on the surface of the second electric rail 123. The humidity detector can transmit the detected humidity information to the controller, which compares the detected humidity information with preset humidity information and controls the operation of the drive mechanism based on the comparison information. It is understood that when water and dust accumulate on the surface of the second electric rail 123, the humidity detector will change, thereby determining whether there is dust and water accumulation on the surface of the second electric rail 123, allowing for real-time cleaning of the second electric rail 123.

[0060] In other embodiments, when the detection element 140 is a humidity detector, the detection element 140 can also be disposed between the second groove 1213 and the second electric rail 123. By disposing of the detection element 140 inside the protective sleeve 121, the detection element 140 can be further away from the outside world, which can reduce the interference of the outside humidity on the detection element 140 and thus ensure the detection accuracy of the detection element 140.

[0061] In some other embodiments, the detection element 140 is configured to detect the cleanliness of the upper surface of the second electric rail 123 at target time intervals under the control of the controller. That is, the detection element 140 is activated within a preset time period to periodically monitor the second electric rail 123 for contamination such as dust accumulated due to electrostatic adsorption or water ingress, promptly detecting potential poor conductivity or electric shock risks, and providing a trigger for subsequent cleaning actions. This timed detection mode is suitable for scenarios where the integrated electric rail bar screen operates continuously in shopping mall sales areas, eliminating the need for real-time manual monitoring, reducing maintenance costs, and minimizing performance degradation caused by long-term contamination accumulation, thereby ensuring the stable operation of the integrated electric rail bar screen.

[0062] It is understood that in some other embodiments, the display device 100 may also include an alarm element that can be electrically connected to the controller. When the controller receives a cleanliness level greater than the target value, it drives the alarm element to sound an alarm or sound and light flashing alarm to remind the user that the second rail 123 needs to be cleaned in a timely manner.

[0063] In addition, the alarm device can also be electrically connected to the display screen 110. When an alarm is triggered, the display screen 110 can also display a prompt message to remind the user to clean the second electric rail 123 in a timely manner.

[0064] In some embodiments, see Figure 1 or Figure 2 As shown, the display device 100 may also include a motherboard 150. One end of the motherboard 150 is connected to an external power supply 200, and the other end is connected to the first electrical rail 122 and the second electrical rail 123. That is, after the external power supply 200 is processed by the motherboard 150, the current is transmitted to the first electrical rail 122 and the second electrical rail 123 to realize the power supply control of the electrical rails.

[0065] In some embodiments, the motherboard 150 can be a SOC (System on Chip). An external power supply 200 supplies power to the motherboard 150, and the motherboard 150 outputs a 12V voltage to the first rail 122 and the second rail 123 through the connection line 161, so as to power the first rail 122 and the second rail 123.

[0066] In some embodiments, see Figure 6 or Figure 7 As shown, the display device 100 may include a plurality of display screens 110 and a plurality of electrical rail assemblies 120. The display screens 110 correspond one-to-one with the electrical rail assemblies 120. The plurality of display screens 110 are arranged sequentially at intervals along the extension direction of the first electrical rail 122. The first electrical rail 122 and the second electrical rail 123 on an adjacent display screen 110 are connected to the first electrical rail 122 and the second electrical rail 123 on another adjacent display screen 110 through a connecting structure 160.

[0067] For example, see Figure 6 or Figure 7 As shown, the display device 100 includes a first display screen, a second display screen, a third display screen, a first electrical rail assembly, a second electrical rail assembly, and a third electrical rail assembly. The first display screen, the second display screen, and the third display screen correspond to the first electrical rail assembly, the second electrical rail assembly, and the third electrical rail assembly, respectively. The three display screens 110 are arranged sequentially at intervals along the extension direction of the first electrical rail 122. The first electrical rail assembly, the second electrical rail assembly, and the third electrical rail assembly are connected to each other through a connecting structure 160.

[0068] In some embodiments, when the first electrical rail 122 and the second electrical rail 123 are respectively disposed at the upper and lower ends of the display screen 110, the display device 100 further includes a first lead structure and a second lead structure located at opposite ends of the length direction of the display screen 110. Both the first lead structure and the second lead structure may include a first conductive line 171 connected to the first electrical rail 122 and a second conductive line 172 connected to the second electrical rail 123. The first conductive line 171, the second conductive line 172, and the connecting line 161 are arranged at intervals.

[0069] When adjacent displays 110 are connected, the first conductive line 171 and the second conductive line 172 of the first lead structure on one display 110 are respectively connected to the first conductive line 171 and the second conductive line 172 of the second lead structure on the adjacent other display 110 through the connection structure 160.

[0070] For example, see Figure 6As shown, this connection structure 160 can be a connecting wire. The first conductive wire 171 can be the positive terminal, and the second conductive wire 172 can be the negative terminal. One end of the connecting wire is connected to the first conductive wire 171 of the first lead structure, and the other end of the connecting wire is connected to the first conductive wire 171 of the second lead structure, so that the first electrical rails 122 on adjacent display screens 110 are interconnected. Correspondingly, another connecting wire is used to connect the second conductive wires 172 of the first lead structure to the second conductive wires 172 of the second lead structure, so that the second electrical rails 123 on adjacent display screens 110 are interconnected. The electrical rail assemblies 120 on adjacent display screens 110 are connected by two connecting wires to transfer the current on the first electrical rails 122 and the second electrical rails 123 to the first electrical rails 122 and the second electrical rails 123 on the next display screen 110, so that adjacent display screens 110 can display simultaneously.

[0071] In some embodiments, the protective sleeve 121 may have a receiving groove for accommodating the installation of the first conductive wire 171 and the second conductive wire 172, so as to reduce the risk of electric shock caused by accidental contact between the user and the first conductive wire 171 and the second conductive wire 172.

[0072] In other embodiments, see Figure 2 and Figure 7 As shown, when the first electric rail 122 and the second electric rail 123 are both located on the back side of the display screen 110, the first electric rail 122 and the second electric rail 123 on an adjacent display screen 110 are connected to one end of the connecting structure 160, and the first electric rail 122 and the second electric rail 123 on another adjacent display screen 110 are connected to the other end of the connecting structure 160, so as to conduct the adjacent first electric rail 122 and the second electric rail 123.

[0073] For example, see Figure 7As shown, the connection structure 160 may include a first plug 162, a second plug 163, and a conductive wire 164 for connecting the first plug 162 and the second plug 163. The first plug 162 and the second plug 163 may have the same structure. The first plug 162 includes a support block and a first conductive piece and a second conductive piece located on opposite sides of the support block. The first conductive piece and the second conductive piece are respectively disposed on opposite sides of the support block, and their arrangement direction may be perpendicular to the extension direction of the first electrical rail 122. When the first plug 162 and the second plug 163 are inserted between the first electrical rail 122 and the second electrical rail 123, the first conductive piece and the second conductive piece can be inserted parallel to the extension direction of the first electrical rail 122 into the space between the first electrical rail 122 and the second electrical rail 123. Then, the first plug 162 and the second plug 163 are rotated to electrically connect the first conductive piece and the second conductive piece with the first electrical rail 122 and the second electrical rail 123. The first plug 162 can be electrically connected to the first electrical rail 122 and the second electrical rail 123 on one display screen 110, and the second plug 163 can be electrically connected to the first electrical rail 122 and the second electrical rail 123 on another display screen 110. That is, the first electrical rail 122 and the second electrical rail 123 between adjacent display screens 110 are electrically connected through this connection structure 160.

[0074] In some other embodiments, the spacing between the first electrical rail 122 and the second electrical rail 123 is less than the distance between the end of the first conductive piece furthest from the end of the second conductive piece and the end of the second conductive piece furthest from the end of the first conductive piece. That is, when the first plug 162 and the second plug 163 are inserted between the first electrical rail 122 and the second electrical rail 123, the first plug 162 and the second plug 163 are interference-fitted with the first electrical rail 122 and the second electrical rail 123. This interference fit ensures tight contact between the plug and the rail, reducing poor contact problems caused by loosening and ensuring the stability of current transmission. Furthermore, the interference fit between the plug and the rail eliminates the need for additional fixing structures to achieve a reliable connection, simplifying the assembly process of the plug and the rail and reducing installation complexity.

[0075] It is understandable that when the first electrical rail 122 and the second electrical rail 123 are located on the back side of the display screen 110, the distance between the first electrical rail 122 and the second electrical rail 123 is smaller than the distance between the first electrical rail 122 and the second electrical rail 123 when they are located at the end of the display screen 110. By shortening the distance between the electrical rails, it is not necessary to rewire them, thus reducing costs.

[0076] It is worth mentioning that the external power supply 200 can be electrically connected to the motherboard 150 of one of the multiple displays 110. This connection method eliminates the need for each display 110 to have a separate external power supply. Multiple displays 110 can be connected in series using only a single motherboard 150 and connection structure 160, simplifying the power supply lines, reducing installation complexity and material costs, and making it suitable for space-constrained scenarios such as small supermarkets.

[0077] In some embodiments, see Figure 6 or Figure 7 As shown, the end rail assembly 120 can also be connected to the decorative element 180 via the connecting structure 160. The decorative element 180 can be a light strip or light belt, etc.

[0078] In the description of this specification, references to terms such as "some embodiments," "exemplarily," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of this application. The illustrative expressions of the above terms in this specification do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in a suitable manner in any one or more embodiments or examples. Moreover, without contradiction, those skilled in the art can combine and integrate the different embodiments or examples described in this specification, as well as the features of different embodiments or examples.

[0079] Although embodiments of this application have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting this application. Those skilled in the art can make changes, modifications, substitutions and variations to the above embodiments within the scope of this application. Therefore, any changes or modifications made in accordance with the claims and description of this application should fall within the scope of this patent application.

Claims

1. A display device, characterized in that, include: Display screen; An electrical rail assembly is formed on the non-display side of the display screen. The electrical rail assembly includes a protective sleeve, a first electrical rail, and a second electrical rail. The protective sleeve has an installation port communicating with its interior. The first electrical rail and the second electrical rail are installed inside the protective sleeve through the installation port, and the second electrical rail is spaced below the first electrical rail. The first electrical rail and the second electrical rail are electrically connected to the display screen and are configured to supply power to the display screen when connected to an external power source. The protective sleeve has a through hole at its bottom, and the second electric rail is movably connected to the protective sleeve to open or close the through hole.

2. The display device according to claim 1, characterized in that, The second electric rail is rotatably connected to the protective sleeve via a rotating mechanism; The mounting port is located on the side of the protective sleeve away from the display screen, and the second rail is configured to rotate toward the side where the mounting port is located to open the through hole.

3. The display device according to claim 2, characterized in that, The mounting port has an upper opening surface near the first electric rail and a lower opening surface near the second electric rail, wherein the upper surface of the second electric rail is not lower than the lower opening surface.

4. The display device according to claim 2, characterized in that, The display device further includes a controller, which is electrically connected to the rotating mechanism; The rotating mechanism is configured to drive the protective sleeve to rotate toward the mounting port at target intervals under the control of the controller.

5. The display device according to claim 2, characterized in that, The display device further includes: A detection element, disposed on the protective sleeve, is configured to detect the cleanliness of the second electric rail; A controller, electrically connected to the detection element, is configured to control the rotation mechanism to drive the second electric rail to rotate toward the mounting port when the cleanliness level is less than a target value.

6. The display device according to claim 5, characterized in that, The detection device is configured to detect the cleanliness of the second electric rail at target intervals under the control of the controller.

7. The display device according to claim 1, characterized in that, The display device also includes a motherboard, one end of which is connected to an external power supply, and the other end of which is connected to the first electrical rail and the second electrical rail.

8. The display device according to claim 1, characterized in that, The display device includes a plurality of display screens and a plurality of electric rail assemblies. The display screens correspond one-to-one with the electric rail assemblies. The plurality of display screens are arranged sequentially along the extension direction of the first electric rail. The first electric rail and the second electric rail on an adjacent display screen are connected to the first electric rail and the second electric rail on an adjacent display screen through a connecting structure.

9. The display device according to claim 8, characterized in that, The first and second electrical rails are respectively disposed at the upper and lower ends of the display screen. The display device also includes a first connection structure and a second connection structure located at opposite ends of the length direction of the display screen. Both the first connection structure and the second connection structure include a first conductive line connected to the first electrical rail and a second conductive line connected to the second electrical rail. When adjacent displays are connected, the first conductive line and the second conductive line of the first connection structure on one display are respectively connected to the first conductive line and the second conductive line of the second connection structure on another adjacent display through the connection structure.

10. The display device according to claim 8, characterized in that, The first and second electrical rails are both located on the back side of the display screen. The first and second electrical rails on an adjacent display screen are connected to one end of the connecting structure, and the first and second electrical rails on an adjacent display screen are connected to the other end of the connecting structure.

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