Display device and display apparatus

Abstract

The application belongs to the technical field of display, and particularly relates to a display device and a display equipment, wherein the display device comprises a display screen and an electric track assembly, the electric track assembly comprises a positive electrode wire and a negative electrode wire, the positive electrode wire and the negative electrode wire are arranged in extension in a first direction, the positive electrode wire and the negative electrode wire are arranged in interval on a non-display screen side of the display screen along a second direction, the first direction and the second direction are arranged in intersection, the positive electrode wire and the negative electrode wire are electrically connected with the display screen and are configured to supply power to the display screen, wherein the positive electrode wire and the negative electrode wire are arranged in inward shrinkage compared with two ends of the display screen in the first direction, and the positive electrode wire and the negative electrode wire are configured to be electrically connected with an external structure. The positive electrode wire and the negative electrode wire are inwardly shrunk, and the use safety is improved.

Description

Technical Field

[0001] This application belongs to the field of display technology, specifically relating to a display device and display equipment. Background Technology

[0002] An electronic shelf label is an electronic display device with information transmission and reception functions. It is usually placed on a shelf and combines a wireless communication module (such as Bluetooth, WiFi, etc.) and a low-power chip to realize data interaction with the back-end management system. It is used to display product prices, promotional information, pictures, QR codes and other content in real time.

[0003] However, in related technologies, the conductive structures on adjacent display devices are prone to accidental contact, leading to short circuits. Utility Model Content

[0004] The purpose of this application is to solve the problem in the related art where conductive structures on adjacent display devices are prone to accidental contact, leading to short circuits.

[0005] The first aspect of this application provides a display device, comprising: a display screen; and an electrical rail assembly, the electrical rail assembly including a positive wire and a negative wire, the positive wire and the negative wire extending in a first direction, the positive wire and the negative wire being spaced apart along a second direction on the non-display screen side of the display screen, the first direction and the second direction intersecting each other, the positive wire and the negative wire being electrically connected to the display screen and configured to supply power to the display screen; wherein the positive wire and the negative wire are recessed relative to the two ends of the display screen in the first direction, and the positive wire and the negative wire are configured to be electrically connected to an external structure.

[0006] In one exemplary embodiment of this application, the positive electrode wire and the negative electrode wire each include a first external interface at their first ends in the first direction; the positive electrode wire and the negative electrode wire each include a second external interface at their second ends in the first direction; wherein the first external interface and the second external interface are configured to be electrically connected to an external structure via conductive wires.

[0007] In one exemplary embodiment of this application, the first ends of the positive and negative conductors in the first direction are connected to a first connecting conductive member, and the second ends of the positive and negative conductors in the first direction are connected to a second connecting conductive member; the first and second connecting conductive members are configured to connect to an external structure; one of the first and second connecting conductive members is a movable connecting conductive member, which is movable relative to the positive and negative conductors to have a retracted position and an extended position; in the retracted position, the movable connecting conductive member is recessed relative to the end of the display screen in the first direction; in the extended position, the movable connecting conductive member is extended relative to the end of the display screen in the first direction to connect to an external structure.

[0008] In one exemplary embodiment of this application, the movable conductive member is rotatably connected to the positive electrode wire and the negative electrode wire to switch between the retracted position and the extended position during rotation.

[0009] In one exemplary embodiment of this application, the movable conductive member is slidably connected to the positive electrode wire and the negative electrode wire to switch between the retracted position and the extended position during sliding along the first direction.

[0010] In one exemplary embodiment of this application, the first connecting conductive member is the movable connecting conductive member; the second connecting conductive member is fixedly connected to the positive electrode wire and the negative electrode wire, and is recessed relative to the end of the display screen in the first direction; wherein, when the first connecting conductive member of one display device is in the unfolded position, it can be inserted into the second connecting conductive member of another display device.

[0011] In one exemplary embodiment of this application, the positive electrode wire and the negative electrode wire are located at the upper and lower ends of the display screen in a second direction, and the first direction is perpendicular to the second direction.

[0012] In one exemplary embodiment of this application, the display device further includes wires and a motherboard, the motherboard being connected to the positive wire and the negative wire via wires to supply power to the motherboard via the positive wire and the negative wire.

[0013] A second aspect of this application provides a display device, including the display apparatus as described above, wherein at least two display apparatuses are provided and arranged in a first direction; wherein, in two adjacent display apparatuses, the positive and negative wires of one display apparatus are connected in parallel with the positive and negative wires of the other display apparatus.

[0014] In another exemplary embodiment of this application, In any two adjacent display devices, one display device is electrically connected to the other display device in any of the following ways: Both the positive and negative conductors have a first external interface at their first ends in the first direction, and both have a second external interface at their second ends in the first direction. The first external interface of one display device is connected to the second external interface of the other display device via a conductive wire; or The first ends of both the positive and negative conductors in the first direction are connected to a first connecting conductive member, and the second ends of both conductors in the first direction are connected to a second connecting conductive member. Both the first and second connecting conductive members are movable relative to the positive and negative conductors to switch between a retracted position and an extended position. The first connecting conductive member in the extended position of one display device is inserted into the second connecting conductive member in the extended position of the other display device; or The first ends of the positive and negative conductors in the first direction are both connected to the first connecting conductive member, and the second ends of the positive and negative conductors in the first direction are both connected to the second connecting conductive member. The first connecting conductive member can move relative to the positive and negative conductors to switch between a retracted position and an extended position. The second connecting conductive member is fixedly connected to the positive and negative conductors and is recessed relative to the end of the display screen in the first direction. When the first connecting conductive member of one display device is in the extended position, it can be inserted into the second connecting conductive member of the other display device.

[0015] The display device and display equipment of this application have at least the following beneficial effects: The display device of this application integrates an electrical rail assembly with positive and negative conductors onto the non-display side of the screen, eliminating the need for purchasing and installing separate conductive rails. This effectively reduces material and installation costs while saving space for small applications such as shelving units. Furthermore, the placement of the positive and negative conductors on the non-display side ensures that the display area is not obstructed, guaranteeing its core information display function. The positive and negative conductors are directly electrically connected to the screen, allowing it to be powered by an external power source, eliminating the need for a separate power supply line for the screen and simplifying overall wiring layout and management. In addition, the positive and negative conductors are recessed in the first direction compared to the screen, reducing the risk of short circuits due to accidental contact when the display devices are close together, thus improving safety. Moreover, the positive and negative conductors can be connected to external structures and can power other devices such as LED strips, expanding the functional boundaries and added value of the display device.

[0016] Other features and advantages of this application will become apparent from the following detailed description, or may be learned in part from practice of this application.

[0017] It should be understood that the above general description and the following detailed description are exemplary and explanatory only, and do not limit this application. Attached Figure Description

[0018] The accompanying drawings, which are incorporated in and form part of this specification, illustrate embodiments consistent with this application and, together with the description, serve to explain the principles of this application. It is obvious that the drawings described below are merely some embodiments of this application, and those skilled in the art can obtain other drawings based on these drawings without any inventive effort.

[0019] Figure 1 A schematic diagram of the display device in some embodiments is shown.

[0020] Figure 2 A schematic diagram of the connection between the display device and an external structure is shown in some embodiments.

[0021] Figure 3 A schematic diagram of a structure in some embodiments is shown, showing a first connecting conductive element and a second connecting conductive element on the back panel of the display screen.

[0022] Figure 4 A schematic diagram of the structure of the display device without splicing is shown in some embodiments.

[0023] Figure 5 A schematic diagram of the structure of the display device spliced ​​together by a first connecting conductive element and a second connecting conductive element is shown in some embodiments.

[0024] Figure 6 It shows Figure 5 A schematic diagram of the connection between the first and second conductive components at point A.

[0025] Explanation of reference numerals in the attached figures: 10. Display device; 100. Display unit; 100a. First display unit; 100b. Second display unit; 100c. Third display unit; 110. Display screen; 120. Electrical track assembly; 121. Positive conductor; 122. Negative conductor; 12a. First external interface; 12b. Second external interface; 12c. Conductive wire; 131. First conductive connector; 132. Second conductive connector; 140. Conductor; 150. Main board; 20. External power supply; 30. External structure; X, the first direction; Y, the second direction. Detailed Implementation

[0026] 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.

[0027] 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.

[0028] 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.

[0029] 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.

[0030] This application provides a display device 100 that can be adapted to space-constrained scenarios such as shelves and small supermarkets, and can be used for electronic price tag display devices 100 that need to dynamically display product information.

[0031] In some embodiments, see Figure 1 As shown, the display device 100 may include a display screen 110 and an electrical track assembly 120. The display screen 110 may be an electronic paper display panel or a liquid crystal display panel, and its display side can be used to display product prices, promotional information, QR codes, and other content. The side of the display screen 110 other than the display screen 110 (i.e., the back of the display screen 110, also known as the back panel) is used to house the electrical track assembly 120, preventing the electrical track assembly 120 from obstructing the display area and ensuring that the display function of the display side of the display screen 110 is not affected.

[0032] In some embodiments, see Figure 1 As shown, the power rail assembly 120 may include a positive conductor 121 and a negative conductor 122. Both the positive conductor 121 and the negative conductor 122 may be made of conductive copper strips, which have good conductivity and current withstand capability, and are suitable for power supply needs of multiple devices.

[0033] It should be noted that the positive electrode wire 121 and the negative electrode wire 122 can also be made of materials such as aluminum-based conductive strips, copper alloy strips or silver strips.

[0034] In some embodiments, the first direction X is defined as the length direction of the display screen 110 (e.g., horizontal direction), and the second direction Y is defined as the width direction of the display screen 110 (e.g., vertical direction). The display screen 110 can be a strip screen, extending along the first direction X. The positive electrode wire 121 and the negative electrode wire 122 extend along the first direction X, their lengths adapted to the length of the display screen 110. The positive electrode wire 121 and the negative electrode wire 122 are spaced apart along the second direction Y on the non-display screen 110 side of the display screen 110 to prevent short circuits between them.

[0035] It should be noted that the positive wire 121 and the negative wire 122 can have the same length and diameter to ensure that the resistance of the positive wire 121 and the negative wire 122 is the same, thus ensuring power supply stability.

[0036] In some embodiments, see Figure 1 As shown, the positive wire 121 and the negative wire 122 are respectively located at the upper and lower ends of the display screen 110, without occupying the space on the back side of the display screen 110. The middle area can be reserved for installing structural components such as the motherboard 150, thereby improving space utilization.

[0037] In other embodiments, the positive wire 121 and the negative wire 122 can be disposed on the back of the display screen 110, with the positive wire 121 and the negative wire 122 spaced apart on the back of the display screen 110 in the second direction Y, for example, with a spacing of 3-5 cm. By disposing of the positive wire 121 and the negative wire 122 on the back of the display screen 110, the obstruction of the wire 140 on the display side of the display screen 110 can be reduced, thereby ensuring the normal display of information such as product prices.

[0038] It is understood that the display device 100 may also include a protective sleeve. The protective sleeve may be a strip-shaped structure extending in the first direction X, with grooves inside that match the positive wire 121 and the negative wire 122. The size of the grooves is larger than the size of the positive wire 121 and the negative wire 122 to ensure that the positive wire 121 and the negative wire 122 can be tightly embedded, reducing the displacement problem of the positive wire 121 and the negative wire 122.

[0039] In some embodiments, the positive wire 121 and the negative wire 122 can be directly electrically connected to the power supply interface of the display screen 110 through the wire 140 connector. The external power supply 20 can be a 12V DC power adapter (input 220V AC mains, output 12V low voltage). After the external power supply 20 is connected to the positive wire 121 and the negative wire 122, it can directly supply power to the display screen 110, eliminating the need to lay a separate power supply line for the display screen 110 and simplifying the overall wiring layout.

[0040] In some embodiments, see Figure 1 As shown, the positive wire 121 and the negative wire 122 are recessed in the first direction X (length direction) relative to the display screen 110. The two ends of the positive wire 121 and the negative wire 122 are recessed by 2-5mm respectively (that is, the left and right ends of the wire 140 are 2-5mm shorter than the left and right ends of the display screen 110). This can reduce the risk of short circuit caused by accidental contact between the ends of the positive wire 121 and the negative wire 122 of the other display device 100 when adjacent display devices 100 are close together, thus improving the safety of use.

[0041] For example, the length of the display screen 110 is 50cm, and the lengths of the positive wire 121 and the negative wire 122 are 48-49cm.

[0042] In some embodiments, see Figure 2 As shown, the first ends of both the positive electrode wire 121 and the negative electrode wire 122 in the first direction X each include a first external interface 12a, and the second ends of both the positive electrode wire 121 and the negative electrode wire 122 in the first direction X each include a second external interface 12b. The first external interface 12a and the second external interface 12b are configured to be electrically connected to an external structure 30 via a conductive wire 12c. The external structure 30 includes, but is not limited to, an external power supply 20, decorative LED light strips, small sensors, and the positive electrode wire 121 and negative electrode wire 122 of another display device 100.

[0043] In one optional example, when the external structure 30 is a decorative LED light strip, the power supply line of the LED light strip can be connected to the positive wire 121 and the negative wire 122 of the display device 100 to power the LED light strip. This eliminates the need for a separate power supply for the LED light strip and improves the applicability of the display device 100.

[0044] In another alternative example, when the external structure 30 is a display device 100, the conductive wires 12c between adjacent display devices 100 can be connected by a connecting wire. That is, one end of the connecting wire is inserted into the first external interface 12a of the positive wire 121 and negative wire 122 of an adjacent display device 100, and the other end of the connecting wire is inserted into the second external interface 12b of the positive wire 121 and negative wire 122 of another adjacent display device 100, so that the adjacent display devices 100 are connected in parallel and have the same voltage.

[0045] In other embodiments, see Figure 3 As shown, the display device 100 may further include a first conductive connector 131 and a second conductive connector 132. The first ends of the positive electrode wire 121 and the negative electrode wire 122 in the first direction X are connected to the first conductive connector 131; the second ends of the positive electrode wire 121 and the negative electrode wire 122 in the first direction X are connected to the second conductive connector 132, that is, the opposite ends of the positive electrode wire 121 / negative electrode wire 122 in the first direction X are respectively connected to the first conductive connector 131 and the second conductive connector 132. The first conductive connector 131 and the second conductive connector 132 are configured to connect to an external structure.

[0046] It is understood that the external structure 30 includes, but is not limited to, external power supply 20, decorative LED light strip, small sensor, positive wire 121 and negative wire 122 of another display device 100, etc.

[0047] In other embodiments, one of the first conductive connector 131 and the second conductive connector 132 may be a metal conductive terminal, such as a copper terminal, to ensure conductivity, while the other is an interface. Alternatively, both the first conductive connector 131 and the second conductive connector 132 may be metal conductive terminals or both may be interfaces.

[0048] In other embodiments, see Figure 3 As shown, when connected to the external structure 30, the external structure 30 needs to be connected to the first connecting conductive element 131 / second connecting conductive element 132 on the positive conductor 121, and also needs to be connected to the first connecting conductive element 131 / second connecting conductive element 132 on the negative conductor 122 to ensure the integrity of the power supply circuit.

[0049] In other embodiments, one of the first connecting conductive member 131 and the second connecting conductive member 132 is a movable connecting conductive member, which is movable relative to the positive electrode wire 121 and the negative electrode wire 122 to have a retracted position and an extended position. In the retracted position, the movable connecting conductive member is recessed relative to the end of the display screen 110 in the first direction X; in the extended position, the movable connecting conductive member is extended relative to the end of the display screen 110 in the first direction X to connect with an external structure.

[0050] In one optional example, the first conductive connector 131 is a movable conductive connector, and the second conductive connector 132 is fixedly connected to the positive wire 121 and the negative wire 122, and is recessed relative to the end of the display screen 110 in the first direction X. That is, the first conductive connector 131 can move relative to the display screen 110; while the second conductive connector 132 is fixed to the non-display side of the display screen 110, for example, it can be fixed to the positive wire 121 by welding, and is recessed.

[0051] It is understandable that, since the first connecting conductive member 131 is a movable connecting conductive member, the first connecting conductive member 131 has a retracted position and an extended position on the display screen 110.

[0052] When retracting, see Figure 3 As shown, the first conductive connector 131 is housed inside the display screen 110, specifically in a pre-set mounting groove on the non-display side (back panel) of the display screen 110. The depth of the mounting groove can be adapted to the thickness of the first conductive connector 131, for example, 3mm, 4mm or 5mm. In this case, the first conductive connector 131 does not protrude from the edge of the display screen 110, does not affect the independent use and appearance of the display device 100, and reduces the chance of accidental touch when not in use.

[0053] When expanding the position, see Figure 5 and Figure 6 As shown, the first conductive connector 131 extends outside the display screen 110 to connect with the external structure 30.

[0054] For example, when the first conductive connector 131 is a conductive terminal and the second conductive connector 132 is an interface, and when the external structure 30 is another display device 100, the first conductive connector 131 of one display device 100 can be plugged into the second conductive connector 132 of the other display device 100 when it is in the unfolded position. Since the second conductive connector 132 is recessed, the recessed distance can be equal to the distance the first conductive connector 131 extends out of the display screen 110 when it is in the unfolded position, so that adjacent display devices 100 can be seamlessly connected.

[0055] In other embodiments, the movable conductive element is rotatably connected to the positive electrode wire 121 and the negative electrode wire 122 to switch between a retracted position and an extended position during rotation.

[0056] For example, the first connecting conductive member 131 is connected to the back plate of the display screen 110 via a hinge. The hinge axis can extend along the second direction Y (vertical direction). Pushing the first connecting conductive member 131 to rotate 90° around the hinge axis allows it to rotate out of the groove and extend to the outside of the display screen 110. For example, the first connecting conductive member 131 extends 2-3mm to the right to dock with the external structure 30 to form a power supply circuit.

[0057] In another embodiment, a slide rail extending in the first direction X is provided in the groove of the back plate of the display screen 110. The slide rail is connected to the positive electrode wire 121 by a flexible conductive sheet to ensure that the electrical connection is not interrupted when sliding. The first connecting conductive member 131 slides with the slide rail, pushing the first connecting conductive member 131 to slide along the slide rail to the outside of the display screen 110. For example, the first connecting conductive member 131 can slide to the right by 2-3mm to extend to the outside of the display screen 110, realize docking with the external structure 30, and form a power supply circuit.

[0058] That is, the first conductive connector 131 can be switched between the retracted and unfolded positions by rotation or by sliding. Of course, in some other embodiments, the first conductive connector 131 can also be switched between the retracted and unfolded positions in other ways.

[0059] In other embodiments, the second conductive connector 132 may move with the display screen 110, while the first conductive connector 131 may be fixed to the non-display side of the display screen 110. The second conductive connector 132 of the positive conductor 121 and the negative conductor 122 has a retracted position and an extended position on the display screen 110. The working principle of these two positions is the same, and will not be described in detail here.

[0060] In addition, an insulating pad can be provided in the mounting groove to reduce electrical interference between conductive parts and other components of the display screen 110, thereby ensuring the normal display effect of the display screen 110.

[0061] In other embodiments, the first connecting conductive member 131 and the second connecting conductive member 132 are both movable connecting conductive members, that is, the first connecting conductive member 131 and the second connecting conductive member 132 can move relative to the display screen 110. Both are connected to the positive electrode wire 121 / negative electrode wire 122 (such as through the flexible wire 140 or the sliding conductive structure to achieve electrical connection during movement), and both have a retracted position and an unfolded position on the display screen 110.

[0062] When retracted, the first conductive connector 131 and the second conductive connector 132 are both housed in the mounting grooves pre-set on the non-display side (back panel) of the display screen 110. The depth of the mounting grooves can be adapted to the thickness of the first conductive connector 131 and the second conductive connector 132, for example, 3mm, 4mm or 5mm. At this time, the first conductive connector 131 and the second conductive connector 132 do not protrude from the edge of the display screen 110, do not affect the independent use and appearance of the display device 100, and reduce the chance of accidental touch when not in use.

[0063] When in the unfolded position, both the first connecting conductive member 131 and the second connecting conductive member 132 extend outside the display screen 110 to connect with the external structure 30.

[0064] In some other embodiments, the first connecting conductive member 131 and the second connecting conductive member 132 are both connected to the back plate of the display screen 110 via hinges. The hinge axis can extend along the second direction Y (vertical direction), pushing the first connecting conductive member 131 and the second connecting conductive member 132 to rotate 90° around the hinge axis, so that they can rotate out of the groove and extend to the outside of the display screen 110, for example, extending 2-3mm to the right, for docking with the external structure 30 to form a power supply circuit.

[0065] In another embodiment, a slide rail extending in the first direction X is provided in the groove of the back plate of the display screen 110. The slide rail is connected to the positive electrode wire 121 by a flexible conductive sheet to ensure that the electrical connection is not interrupted when sliding. The first connecting conductive member 131 slides with the slide rail, pushing the first connecting conductive member 131 to slide along the slide rail to the outside of the display screen 110. For example, sliding 2-3mm to the right can extend to the outside of the display screen 110, realize docking with the external structure 30, and form a power supply circuit.

[0066] It should be noted that the first conductive connector 131 unfolds to the right, and the second conductive connector 132 unfolds to the left, which can adapt to the connection requirements of external structures 30 in different directions. For example, the second conductive connector 132 unfolding to the left can dock with the external structure 30 on the left, and the first conductive connector 131 unfolding to the right can dock with the external structure 30 on the right, realizing the connection between the display screen 110 and multiple external structures 30. In addition, both the first connecting conductive element 131 and the second connecting conductive element 132 can move relative to the display screen 110 (such as rotate or slide). By dispersing the motion load of a single connecting conductive element, reducing the long-term stress or wear of a single component, the probability of any connecting conductive element getting stuck is reduced, thereby ensuring a stable connection between the display device 100 and the external structure 30.

[0067] In some embodiments, the positive electrode wire 121 and the negative electrode wire 122 are respectively disposed at the upper and lower ends of the display screen 110 (arranged along the second direction Y, i.e., the vertical direction).

[0068] For example, the positive wire 121 is located at the upper edge of the back panel of the display screen 110, and the negative wire 122 is located at the lower edge of the back panel. In this way, the edge space of the display screen 110 can be further utilized, reducing the area occupied by the electrical rail assembly 120 in the middle of the back panel, so as to reserve installation space for components such as the motherboard 150.

[0069] In some embodiments, the first direction X and the second direction Y are perpendicular to each other to ensure that the wires 140 are arranged neatly and to reduce the risk of interference with other components.

[0070] In some embodiments, see Figure 1 or Figure 3 As shown, the display device 100 also includes wires 140 and a motherboard 150. The motherboard 150 can be fixed to the non-display side of the display screen 110, for example, in the middle of the back panel, and is soldered to the positive wire 121 and negative wire 122 of the power rail assembly 120 via two wires 140, respectively. After the external power supply 20 supplies power to the power rail assembly 120, the current flows through the positive wire 121 and wires 140 to the motherboard 150, and then forms a loop through the other wire 140 and the negative wire 122 to supply power to the motherboard 150. This method can optimize the power supply of the display screen 110 and the motherboard 150, avoid cluttered multiple lines, and improve the integration of the display device 100.

[0071] This application embodiment also provides a display device 10, which may include at least two display devices 100 as described above, suitable for shelf scenarios requiring large-area information display. In two adjacent display devices 100, the positive wire 121 and negative wire 122 of one display device 100 are connected in parallel with the positive wire 121 and negative wire 122 of the other display device 100.

[0072] In some embodiments, at least two display devices 100 are arranged at intervals in the first direction X (left-right length direction), with an interval distance of 1-3mm, so that adjacent display devices 100 are spliced ​​together in an almost seamless manner, improving display continuity and meeting the information display needs of shelf scenarios.

[0073] It is understandable that, since the positive and negative conductive wires 122 are recessed inward relative to the display screen 110, when the display devices 100 are spliced ​​together, the positive and negative conductive wires 121 and 122 on adjacent display devices 100 will not accidentally touch and short-circuit, thus ensuring the display effect of each display device 100.

[0074] In some embodiments, adjacent display devices 100 may be connected in parallel, and each display device 100 has the same voltage.

[0075] For example, see Figure 2As shown, adjacent display devices 100 can be connected using the aforementioned conductive wires. These conductive wires can be of a structure such as connecting wires.

[0076] Another example, see Figure 4 and Figure 5 As shown, taking the connection of two display devices 100 (first display device 100a and second display device 100b) as an example, both adopt the structure of the single conductive component that can be rotated (the first connecting conductive component 131 can be rotated and unfolded) mentioned above, and the first connecting conductive component 131 is a conductive terminal and the second connecting conductive component 132 is an interface.

[0077] The first connecting conductive member 131 of the first display device 100a (connected to the positive electrode wire 121 and the negative electrode wire 122) switches from the retracted position to the extended position (extending to the right), and the conductive terminals of its positive electrode wire 121 and negative electrode wire 122 are exposed.

[0078] The second connecting conductive member 132 of the second display device 100b (connected to the positive wire 121 and the negative wire 122) is kept in an inward setting, and a docking interface is reserved at the position corresponding to the first connecting conductive member 131 of the first display device 100a.

[0079] For docking, please refer to Figure 5 and Figure 6 As shown, the first connecting conductive member 131 of the first display device 100a in its unfolded position passes through the docking interface of the second display device 100b and is inserted into the second connecting conductive member 132, so that the first display device 100a and the second display device 100b are connected in parallel. The inward distance of the second connecting conductive member 132 can be equal to the outward distance of the first connecting conductive member 131 in its unfolded position, so that seamless splicing can be achieved when the first display device 100a and the second display device 100b are connected.

[0080] It should be noted that the first connecting conductive member 131 of the first display device 100a and the second connecting conductive member 132 of the second display device 100b are connected by an interference fit to ensure stable electrical connection and avoid power outage caused by poor contact.

[0081] If more display devices 100 are needed, they can be connected sequentially in the manner described above (e.g., the first connecting conductive part 131 of the second display device 100b is connected to the second connecting conductive part 132 of the third display device 100c) to achieve flexible expansion, and all display devices 100 have a voltage of 12V.

[0082] It should be understood that the second conductive connector 132 can also be rotatable relative to the display screen 110, while the first conductive connector 131 is fixed relative to the display screen 110. The connection between adjacent display devices 100 is achieved by rotating the second conductive connector 132.

[0083] Another example, see Figures 4 to 6 As shown, taking three display devices 100 (first display device 100a, second display device 100b, and third display device 100c) as an example, all three adopt the above-mentioned structure with movable dual connecting conductive parts, that is, the first connecting conductive part 131 and the second connecting conductive part 132 can be rotated and unfolded, and the first connecting conductive part 131 is a conductive terminal and the second connecting conductive part 132 is an interface.

[0084] When the first connecting conductive member 131 of the first display device 100a is switched to the unfolded position to the right, the terminals of the positive wire 121 and the negative wire 122 are exposed. When the second connecting conductive member 132 of the second display device 100b is switched to the unfolded position to the left, the interface is exposed, and when the first connecting conductive member 131 of the second display device 100b is switched to the unfolded position to the right, the terminals of the positive wire 121 and the negative wire 122 are exposed. When the second connecting conductive member 132 of the third display device 100c is switched to the unfolded position to the left, the interface is exposed.

[0085] For docking, please refer to Figures 4 to 6 As shown, the first conductive connector 131 unfolded on the right side of the first display device 100a is connected to the second conductive connector 132 on the left side of the second display device 100b, and the first conductive connector 131 unfolded on the right side of the second display device 100b is connected to the second conductive connector 132 on the left side of the third display device 100c. This design adapts to multi-screen continuous splicing scenarios, further improving splicing flexibility, while maintaining a stable 12V power supply.

[0086] It is understandable that when adjacent display devices 100 are spliced ​​together, only one connecting conductive part can be rotated to the unfolded position while the other remains in the retracted position.

[0087] 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.

[0088] 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 track assembly includes a positive wire and a negative wire, the positive wire and the negative wire extending in a first direction, the positive wire and the negative wire being spaced apart along a second direction on the non-display side of the display screen, the first direction and the second direction intersecting each other, the positive wire and the negative wire being electrically connected to the display screen and configured to supply power to the display screen; The positive and negative wires are recessed relative to the two ends of the display screen in the first direction, and are configured to be electrically connected to an external structure.

2. The display device according to claim 1, characterized in that, Both the positive electrode wire and the negative electrode wire have a first external interface at their first ends in the first direction; Both the positive electrode wire and the negative electrode wire have a second external interface at their second ends in the first direction; The first external interface and the second external interface are configured to be electrically connected to an external structure via conductive wires.

3. The display device according to claim 1, characterized in that, The first ends of the positive electrode wire and the negative electrode wire in the first direction are connected to the first connecting conductive element, and the second ends of the positive electrode wire and the negative electrode wire in the first direction are connected to the second connecting conductive element; The first and second conductive connectors are configured to connect to an external structure; One of the first and second conductive connecting elements is a movable conductive connecting element, which is capable of moving relative to the positive and negative conductors to have a retracted position and an extended position; in the retracted position, the movable conductive connecting element is recessed relative to the end of the display screen in the first direction. In the unfolded position, the movable conductive connector extends beyond the end of the display screen in the first direction to connect with an external structure.

4. The display device according to claim 3, characterized in that, The movable conductive component is rotatably connected to the positive and negative conductors to switch between the retracted and extended positions during rotation.

5. The display device according to claim 3, characterized in that, The movable conductive element is slidably connected to the positive and negative conductors to switch between the retracted and extended positions during sliding along the first direction.

6. The display device according to claim 3, characterized in that, The first connecting conductive element is the movable connecting conductive element; The second conductive connector is fixedly connected to the positive electrode wire and the negative electrode wire, and is recessed relative to the end of the display screen in the first direction; In one of the display devices, the first connecting conductive member can be plugged into the second connecting conductive member of another display device when it is in the unfolded position.

7. The display device according to claim 1, characterized in that, The positive and negative wires are located at the upper and lower ends of the display screen in the second direction, and the first direction is perpendicular to the second direction.

8. The display device according to claim 1, characterized in that, The display device further includes wires and a motherboard, the motherboard being connected to the positive wire and the negative wire via wires to supply power to the motherboard via the positive wire and the negative wire.

9. A display device, characterized in that, Including the display device as described in claim 1, wherein at least two display devices are provided and are arranged in a spliced ​​arrangement in a first direction; In one of the two adjacent display devices, the positive and negative wires of one display device are connected in parallel with the positive and negative wires of the other display device.

10. The display device according to claim 9, characterized in that, In any two adjacent display devices, one display device is electrically connected to the other display device in any of the following ways: Both the positive and negative conductors have a first external interface at their first ends in the first direction, and both have a second external interface at their second ends in the first direction. The first external interface of one display device is connected to the second external interface of the other display device via a conductive wire; or The first ends of both the positive and negative conductors in the first direction are connected to a first connecting conductive member, and the second ends of both conductors in the first direction are connected to a second connecting conductive member. Both the first and second connecting conductive members are movable relative to the positive and negative conductors to switch between a retracted position and an extended position. The first connecting conductive member in the extended position of one display device is inserted into the second connecting conductive member in the extended position of the other display device; or The first ends of the positive and negative conductors in the first direction are both connected to the first connecting conductive member, and the second ends of the positive and negative conductors in the first direction are both connected to the second connecting conductive member. The first connecting conductive member can move relative to the positive and negative conductors to switch between a retracted position and an extended position. The second connecting conductive member is fixedly connected to the positive and negative conductors and is recessed relative to the end of the display screen in the first direction. When the first connecting conductive member of one display device is in the extended position, it can be inserted into the second connecting conductive member of the other display device.

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