Display device

Abstract

The utility model provides a display device which comprises a groove body embedded in a base body and provided with a containing cavity and a notch communicated with the containing cavity, and the notch is close to the surface of the base body; the at least one display module is positioned in the accommodating cavity and is detachably connected with the groove body; the light emitting side of the display module faces the notch. According to the display device, through the groove embedded in the base body, a mounting structure foundation reliable in connection with the base body can be provided, and it can be guaranteed that the display module can be safely and stably fixed to the base body. The display module and the groove body are designed to be of a detachable connection structure, the disassembly and assembly difficulty of the display module can be simplified, and when the display module needs to be maintained, the display module can be rapidly replaced. Even if the display device is applied to a railway station platform and other places needing long-time use, the maintenance time on the station platform can be effectively shortened through rapid replacement, adverse effects caused by maintenance of the display device are reduced, and it can be guaranteed that the places rapidly recover to normal operation.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of display, in particular to a display device. BACKGROUND

[0002] In the related art, a landmark (i.e., a sign on the ground) showing a carriage number and a direction indication is arranged on the platform ground of a train station. The information displayed by the existing landmark is fixed. The same platform can stop trains of different lengths and traveling directions. When stopping trains of different lengths, the carriage number corresponding to the same location on the platform is not the same. In order to adapt to trains of different lengths, multiple landmarks with different information are arranged at the same location on the platform, which may cause passengers to wait at the wrong location on the platform due to mistaken landmark, thereby causing inconvenience in taking the train. CONTENT OF THE UTILITY MODEL

[0003] Therefore, the purpose of the present application is to provide a display device to at least partially solve the problem that passengers are prone to mistaken landmarks due to multiple landmarks with different information arranged at the same location.

[0004] To achieve the above purpose, the present application provides a display device, which comprises: a slot body embedded in a base body, the slot body being provided with a containing cavity and a slot opening in communication with the containing cavity, the slot opening being close to a surface of the base body; at least one display module positioned in the containing cavity and detachably connected with the slot body; and a light-emitting side of the display module facing the slot opening.

[0005] Illustratively, the slot body comprises a bottom plate and two side plates respectively connected to two sides of the bottom plate along a first direction, the bottom plate and the two side plates jointly forming the containing cavity; a socket is connected to one side of the bottom plate close to the containing cavity, the socket being electrically connected with a power supply and / or a signal source; the display module comprises a shell, a plug and a display module group; the shell comprises a shell opening arranged at a top portion, the display module group is positioned in the shell, and a light-emitting side of the display module group is close to the shell opening; the plug is sealingly connected to a bottom portion of the shell; when the shell is connected with the slot body, the display module group is electrically connected with the socket through the plug.

[0006] Illustratively, the slot body comprises a mounting portion arranged on a side of the side plate away from the containing cavity, the mounting portion being connected to a top portion of the side plate close to the slot opening, the slot body being fixedly connected with the base body through the mounting portion; opposite two side walls of the shell are respectively connected with mounting lugs, the mounting portion supporting the mounting lugs, and the shell is detachably connected with the mounting portion through the mounting lugs.

[0007] Exemplarily, the mounting portion comprises a first sub-portion and a second sub-portion arranged in a stack and in a spaced manner, the second sub-portion is located on a side of the first sub-portion away from the slot opening along a depth direction of the slot body; the mounting lug is detachably connected with the first sub-portion, the second sub-portion is fixedly connected with the base body through a fastener, and the first sub-portion is provided with a first through hole for exposing the fastener.

[0008] Exemplarily, an installation space is formed between the display module and the shell, a functional assembly is connected to a surface of the shell close to the installation space, and the functional assembly is electrically connected with the display module and the plug respectively.

[0009] Exemplarily, a connecting groove for inserting the plug is arranged on a top of the socket, a mounting groove is arranged on a groove wall of the connecting groove, a socket sealing ring is arranged in the mounting groove, a diameter of the socket sealing ring is a, and a width of the mounting groove is b, 1.2b≤a≤1.5b.

[0010] Exemplarily, the display module comprises a transparent protective layer arranged on a light-emitting side of the display module, and a transparent elastic sealing layer is arranged between the transparent protective layer and the display module.

[0011] Exemplarily, mounting lugs are connected to opposite side walls of the shell respectively, the mounting lugs comprise a first sub-lug, a second sub-lug and a third sub-lug connected in a Z shape in a direction away from the side walls of the shell in sequence, and the transparent protective layer extends to between the first sub-lug and the second sub-lug in a first direction.

[0012] Exemplarily, the transparent protective layer extends to outside of the shell in a second direction perpendicular to the first direction.

[0013] Exemplarily, surfaces of the transparent protective layer, the third sub-lug and the base body are flush.

[0014] Exemplarily, sealing layers are arranged between the display module and the shell, and between the transparent protective layer and the mounting lug respectively.

[0015] Exemplarily, the display device comprises a protection assembly arranged on a side of the transparent protective layer away from the display module, and the protection assembly is connected to the shell and / or the slot body; the protection assembly covers at least edges of the transparent protective layer, and a normal projection of the protection assembly on the display module does not coincide with a display area of the display module.

[0016] Exemplarily, the protection assembly comprises an outer sealing layer and a rigid protective plate arranged on a side of the outer sealing layer away from the transparent protective layer.

[0017] Exemplarily, the slot body extends along a second direction, and a plurality of display modules are provided and are arranged at intervals along the extension direction of the slot body.

[0018] Exemplarily, the display device comprises a rigid guard plate, a shell and a transparent protective layer, the total thickness of the three is m, and the gap distance between adjacent two display modules is n, m is positively correlated with n.

[0019] Exemplarily, m / 2≤n≤m.

[0020] Exemplarily, a gap sealing layer is arranged between adjacent two display modules.

[0021] Exemplarily, a gap is formed between the display module and the slot body, and at least one end of the extension direction of the slot body is provided with a slot body opening in communication with the gap.

[0022] Exemplarily, the base body comprises a train platform.

[0023] Exemplarily, the base body surface is provided with a functional structure, and the interval distance between the slot body and the functional structure is not less than 100 mm.

[0024] From the above, it can be seen that the display device provided by the present application can provide a reliable mounting structure basis connected with the base body, which helps to ensure that the display module can be safely and stably fixed to the base body. By designing the display module and the slot body as a detachable connection structure, the disassembly and assembly difficulty of the display module can be simplified, and when the display module needs to be repaired, the display module can be quickly replaced. Even if the display device is applied to places such as train platforms that need to be used for a long time, the maintenance time on the platform can be effectively reduced by quick replacement, the adverse effects caused by maintaining the display device are reduced, and the normal operation of the place can be ensured quickly. BRIEF DESCRIPTION OF DRAWINGS

[0025] In order to more clearly illustrate the technical solutions in the present application or related art, the following will briefly introduce the drawings needed to be used in the embodiments or related art descriptions. Obviously, the drawings in the following description are only embodiments of the present application, and other drawings can be obtained by those skilled in the art without creative labor.

[0026] Figure 1 is a schematic diagram of a landmark;

[0027] Figure 2 is a schematic diagram of a display device of an embodiment of the present application;

[0028] Figure 3 is Figure 2 is a sectional view along A-A;

[0029] Figure 4 is Figure 3 is an enlarged view of part B;

[0030] Figure 5 is a perspective view of setting a groove on a base;

[0031] Figure 6 is Figure 5 is a sectional view along C-C;

[0032] Figure 7 is a perspective view of installing a slot body;

[0033] Figure 8 is Figure 7 is an enlarged view of part D;

[0034] Figure 9 is a perspective view of the installation of the slot body;

[0035] Figure 10 is a perspective view of installing a display module;

[0036] Figure 11 is a perspective view of the connection of the display module and the socket with the slot body;

[0037] Figure 12 is a perspective view of installing a plug to the shell;

[0038] Figure 13 is a perspective view of installing a functional assembly to the shell;

[0039] Figure 14 is a perspective view of the installation of the functional assembly;

[0040] Figure 15 is a perspective view of installing a display module to the shell;

[0041] Figure 16 is a perspective view of the socket of the display device of the embodiment of the application;

[0042] Figure 17 is Figure 16 is a sectional view along E-E;

[0043] Figure 18 is a perspective view of coating transparent silicone on the display module;

[0044] Figure 19 is a perspective view of installing a transparent protective layer to the shell;

[0045] Figure 20 A perspective view of the display device after the transparent protective layer is installed;

[0046] Figure 21 A perspective view of the display device after the transparent protective layer is installed; Figure 20 A cross-sectional view of the F-F section of the display device;

[0047] Figure 22 A perspective view of the display device after the transparent protective layer is installed; Figure 21 An enlarged view of the G section of the display device;

[0048] Figure 23 A perspective view of the display device after the transparent protective layer is installed;

[0049] Figure 24 A perspective view of the display device after the transparent protective layer is installed;

[0050] Figure 25 A perspective view of the display device after the transparent protective layer is installed;

[0051] Figure 26 A perspective view of the display device after the transparent protective layer is installed;

[0052] Figure 27 A perspective view of the display device after the transparent protective layer is installed;

[0053] Figure 28 A perspective view of the display device after the transparent protective layer is installed;

[0054] Figure 29 A perspective view of the display device after the transparent protective layer is installed;

[0055] Figure 30 A perspective view of the display device after the transparent protective layer is installed;

[0056] Figure 31 A perspective view of the display device after the transparent protective layer is installed;

[0057] Figure 32 A perspective view of the display device after the transparent protective layer is installed; Figure 31 A cross-sectional view of the H-H section of the display device;

[0058] Figure 33 A perspective view of the display device after the transparent protective layer is installed;

[0059] Figure 34 A perspective view of the display device after the transparent protective layer is installed.

[0060] Explanation of reference signs:

[0061] 100, groove body; 110, accommodating cavity; 120, slot; 130, bottom plate; 140, side plate; 150, mounting portion; 151, first sub-portion; 152, second sub-portion; 153, first through hole; 160, groove body opening

[0062] 200, base; 210, groove; 211, mounting groove; 220, base surface;

[0063] 300, display module; 310, housing; 311, housing opening; 320, display module; 321, display module light-emitting side; 330, plug; 331, plug sealing ring; 332, plug nut; 340, mounting lug; 341, first sub-lug; 342, second sub-lug; 343, third sub-lug; 350, mounting space; 360, support strip; 370, elastic sealing layer; 371, transparent silicone; 380, transparent protective layer; 390, sealing layer;

[0064] 400, landmark; 500, functional structure;

[0065] 600, expansion screw; 700, screw;

[0066] 800, socket; 810, connecting groove; 811, mounting groove; 820, socket sealing ring;

[0067] 900, functional assembly; 910, control board; 920, power board;

[0068] 1000, protection assembly; 1100, outer sealing layer; 1200, rigid protective plate;

[0069] 2000, gap sealing layer; 3000, flow channel. DETAILED DESCRIPTION

[0070] In order to make the objects, technical solutions and advantages of the present application clearer, the present application is further described in detail below with reference to the specific embodiments and the accompanying drawings.

[0071] It should be noted that the relative arrangement of the components, numerical expressions and values set forth in these embodiments do not limit the scope of the present application unless otherwise specifically stated.

[0072] It should be understood that the sizes of the various parts shown in the drawings are not drawn in accordance with the actual proportion relationship for the convenience of description.

[0073] The following description of at least one example embodiment is merely illustrative in nature and is in no way limiting to the scope of the present application or its applications or uses.

[0074] It should be noted that, unless otherwise defined, the technical terms or scientific terms used in the embodiments of the present application should have the usual meanings understood by people with ordinary skills in the field to which this application belongs. The "first", "second" and similar words used in the embodiments of the present application do not indicate any order, quantity or importance, but are only used to distinguish different components. "Include" or "comprise" and similar words mean that the elements or objects appearing before the word cover the elements or objects listed after the word and their equivalents, without excluding other elements or objects. "Connect" or "connected" and similar words are not limited to physical or mechanical connections, but may include electrical connections, whether direct or indirect. "Up", "down", "left", "right" and the like are only used to indicate relative positional relationships. When the absolute position of the described object changes, the relative positional relationship may also change accordingly.

[0075] like Figure 1 , Figure 1 Four landmarks 400 are shown set at the same location on the platform ground. Taking the first landmark 400 on the left as an example, the landmark 400 may include the train car number "Car 7" corresponding to the location, and direction arrows to other cars, that is, left to go to Car 1, and right to go to Car 16.

[0076] Since trains, especially high-speed trains, stop at stations for short periods of time, stations often allow passengers to check in and enter the station in advance to allow more time for boarding. When a passenger arrives at the platform but the train has not yet arrived, the passenger needs to follow the information displayed at landmark 400 and quickly move to a position close to the target car (i.e., the car where the passenger's seat is located) so that they can board the train quickly when it arrives.

[0077] However, due to the high volume of trains traveling to and from the station each day, the same platform often receives and dispatches trains heading in different directions. The order of carriages on each train naturally varies depending on the direction. Furthermore, during peak hours, when there are more passengers traveling in certain directions, train sets may be reconnected, resulting in trains with both 8-carriage and 16-carriage configurations. Consequently, when different trains stop at the platform, the corresponding carriages on the same platform location change.

[0078] In order to maximize the use of resources, multiple corresponding landmarks 400 are set at the same location on the platform according to different trains. Figure 1 , four landmarks 400 can be set at the same location. In order to distinguish the four landmarks 400, the four landmarks 400 can be set with different background colors, such as yellow (corresponding to Figure 1 The first landmark without background pattern 400), blue (corresponding to Figure 1The second landmark 400 on the oblique background pattern), green (corresponding to Figure 1 The third landmark of the midpoint background pattern 400) or purple (corresponding Figure 1 The fourth landmark 400 on the middle cross background pattern) etc. Under normal circumstances, the electronic screen displaying the train information at the station will inform the information of the landmark 400 corresponding to the train, and the station voice broadcast will also prompt passengers to wait for the train at the corresponding position on the platform according to which color of landmark 400.

[0079] Still Figure 1 Taking the landmark 400 shown as an example, when the station notifies that the train is about to arrive and corresponds to the blue landmark 400, then when the train stops at this platform, the corresponding location is car 7, and it goes to car 1 on the left and to car 8 on the right. When the station notifies that the train is about to arrive and corresponds to the green landmark 400, then when the train stops at this platform, the corresponding location is car 10, and it goes to car 16 on the left and to car 1 on the right.

[0080] When a passenger enters the platform, they first need to check the target car number on their ticket (including electronic tickets or paper tickets, which will record the corresponding seat number and car number), for example, car 4. Then, based on the color of the landmark 400 corresponding to the current train number announced by the station (reminder information will be broadcast at the platform, waiting room or security checkpoint, etc.), for example, a yellow landmark 400, they need to look for a landmark 400 on the platform ground that is marked with the target car number and the color corresponding to the current train number, for example, the yellow landmark 400 marking car 4, and wait at the location of the landmark 400 for the train to arrive.

[0081] The above process shows that when passengers look for landmark 400, they need to combine the target car number on their ticket and the color of landmark 400 announced by the station to find the target car. If even one of these pieces of information is wrong, it is very likely that their waiting position will not correspond to the target car on the train, thus delaying boarding.

[0082] The applicant discovered that if a display device with a changeable display information is embedded in the platform floor as a landmark 400, then only one display device can be installed at each location on the platform. When different trains stop at the platform, the car number displayed on the display device can be changed to ensure that the car number displayed on the display device fully corresponds to the actual car number of the current train. When searching for landmark 400, passengers only need to refer to the target car number on their ticket, without having to filter by color from multiple landmarks 400. This helps passengers quickly and accurately determine their correct waiting location on the platform, ensuring that their waiting location corresponds to the target car stop location on the train, thereby saving passengers boarding time.

[0083] Applicants have also found that the display device is embedded in the outdoor platform floor and needs to withstand the impact of many passengers stepping on, dropping or luggage rolling over, etc. and the working environment is relatively harsh, which is prone to damage. However, since the train station operates for a long time every day, if the maintenance of the display device can only be carried out on the platform where it is installed, the maintenance window period will be very short. Therefore, the display device can only be suspended during the maintenance period, which will affect the normal operation of the station.

[0084] Therefore, how to quickly maintain the display device has become a problem to be solved.

[0085] In order to solve the above problems, such as Figure 2 , Figure 3 and Figure 8 , the display device provided by the embodiments of the present application comprises: a groove body 100 embedded in a base body 200, the groove body 100 is provided with a receiving cavity 110 and a slot 120 in communication with the receiving cavity 110, the slot 120 is close to the surface 220 of the base body; at least one display module 300 positioned in the receiving cavity 110 and detachably connected with the groove body 100; the light-emitting side of the display module 300 faces the slot 120.

[0086] Illustratively, the base body 200 can be a platform or a wall.

[0087] Illustratively, the display module 300 and the groove body 100 can be detachably connected by plug-in, clamping or fastener connection and the like.

[0088] Illustratively, the groove body 100 is a strip-shaped groove structure and extends along a second direction (such as the Y direction in Figure 2 When there are multiple display modules 300 installed in the groove body 100, the multiple display modules 300 are arranged along the second direction.

[0089] Illustratively, when the base body 200 is a platform, the groove body 100 is installed below the ground surface, and the material of the groove body 100 can be aluminum alloy based on the consideration of moisture and rust prevention.

[0090] Illustratively, the groove body 100 can be prepared by using a dosage form mold, which helps to reduce the cost and improve the size consistency of the groove body 100.

[0091] Further illustrated by taking the platform of a train station as the base body 200. Before installation, a groove 210 matching the shape of the groove body 100 can be formed on the surface of the platform, such as Figure 5 and Figure 6 When the groove 210 is formed, the inside of the groove 210 can be smoothed with concrete cement or the like. Then, the groove body 100 is placed in the groove 210, such as Figure 7 , Figure 8 and Figure 9The groove body 100 is fixed on the platform by the plurality of evenly arranged expansion screws 600, so that the groove body 100 is embedded in the base body 200.

[0092] After the groove body 100 is installed, the display module 300 can be placed into the accommodating cavity 110 of the groove body 100 by a suction cup or other tools, as shown in Figure 10 Meanwhile, the light-emitting side of the display module 300 is ensured to be close to the slot 120 of the groove body 100, so that the display module 300 can display image information outside the base body 200 through the slot 120. Then, the display module 300 and the groove body 100 can be detachably connected by the plurality of evenly arranged screws 700, as shown in Figure 11 .

[0093] When the display module 300 installed in the groove body 100 cannot work normally and needs to be repaired, the operator can directly remove the display module 300 that cannot work normally from the groove body 100, and quickly install a spare display module 300 in the position, so that the position can still display image information normally through the replaced display module 300, and passengers on the platform can use it normally.

[0094] The display device provided by the embodiment can provide a reliable installation structure basis connected with the base body 200, which helps to ensure that the display module 300 can be safely and stably fixed on the base body 200. By designing the display module 300 and the groove body 100 as a detachable connection structure, the disassembly and assembly difficulty of the display module 300 can be simplified, and the display module 300 can be quickly replaced when it needs to be repaired. Even if the display device is applied to a place such as a train platform that needs to be used for a long time, the maintenance time on the platform can be effectively reduced by quick replacement, the adverse effects caused by maintaining the display device are reduced, and the place can quickly return to normal operation.

[0095] As shown in Figure 3 , Figure 11 and Figure 12 , in some embodiments, the groove body 100 includes a bottom plate 130 and a first direction (such as the X direction) along the length direction of the groove body 100. Figure 3The bottom plate 130 and the two side plates 140 are respectively connected to the two side plates 140 on both sides of the bottom plate 130, and the bottom plate 130 and the two side plates 140 together form a accommodating cavity 110; the side of the bottom plate 130 close to the accommodating cavity 110 is connected to the socket 800, and the socket 800 is electrically connected to the power supply and / or signal source; the display module 300 includes a shell 310, a plug 330 and a display module 320; the shell 310 includes a shell opening 311 set at the top, the display module 320 is positioned inside the shell 310, and the light-emitting side 321 of the display module is close to the shell opening 311; the plug 330 is sealed and connected to the bottom of the shell 310; when the shell 310 is connected to the slot body 100, the display module 320 is electrically connected to the socket 800 through the plug 330.

[0096] Exemplarily, the display module 320 includes an LED display panel.

[0097] For example, in order to facilitate disassembly, assembly, and maintenance of the display module 300 , the weight of the display module 300 needs to be reduced as much as possible. Therefore, the housing 310 can be made of aluminum alloy with a relatively low weight.

[0098] For example, the socket 800 may be a waterproof quick connector such as an aviation socket or a waterproof industrial socket.

[0099] For example, Figure 12 Plug 330 can be inserted through a through hole at the bottom of housing 310. A portion of plug 330 is located inside housing 310 for electrical connection to display module 320, while another portion extends out from the bottom of housing 310 for electrical connection to socket 800. The portion of plug 330 located inside housing 310 is externally threaded and secured to the bottom of housing 310 via a plug nut 332.

[0100] For example, Figure 12 The plug 330 and the housing 310 can be sealed together by a plug sealing ring 331 mounted on the plug 330 .

[0101] For example, two sockets 800 may be provided for each display module 300, wherein one socket 800 is connected to a power source for providing power to the display module 300; and the other socket 800 is connected to a signal source for transmitting a signal to the display module 300 so that the display module 320 can display preset image information.

[0102] Exemplarily, the radial cross-section of the tank body 100 is a U-shaped structure formed by two side plates 140 and a bottom plate 130 .

[0103] For example, the socket 800 may be connected to the base plate 130 via screws 700 .

[0104] Illustratively, the plug 330 and the socket 800 are connected in a one-to-one correspondence.

[0105] In the embodiment, the socket 800 is connected to the inner bottom of the groove body 100, and the connecting groove 810 of the socket 800 for connecting the plug 330 faces the slot 120. Since the plug 330 is connected to the bottom of the shell 310, when the display module 300 is placed into the accommodating cavity 110 of the groove body 100, the plug 330 can be simultaneously inserted into the connecting groove 810 of the socket 800 corresponding thereto to realize the electrical connection of the plug 330 and the socket 800. Since the plug 330 is electrically connected with the display module 320, and the socket 800 is electrically connected with the power supply and / or signal source, when the plug 330 and the socket 800 are electrically connected, the display module 320 can be electrically connected with the power supply and / or signal source to enable the display module 320 to display the preset image.

[0106] In other words, in the embodiment, the shell 310 and the groove body 100 complete the mechanical connection at the same time, and the display module 320 can be electrically connected with the power supply and / or signal source through the plug 330 and the socket 800, and the mechanical and electrical connections are realized by one action, which can further simplify the disassembly and assembly process of the display module 300, reduce the disassembly and assembly difficulty, and help to further improve the disassembly and assembly speed.

[0107] As Figure 3 , Figure 4 and Figure 8 In some embodiments, the groove body 100 includes a mounting portion 150 arranged on the side plate 140 away from the accommodating cavity 110, the mounting portion 150 is connected to the top of the side plate 140 close to the slot 120, and the groove body 100 is fixedly connected with the base body 200 through the mounting portion 150; the opposite two side walls of the shell 310 are respectively connected with mounting lugs 340, the mounting portion 150 supports the mounting lugs 340, and the shell 310 is detachably connected with the mounting portion 150 through the mounting lugs 340.

[0108] For example, the position close to the top opening of the groove 210 of the base body 200 is provided with a mounting groove 211 for accommodating the mounting portion 150.

[0109] For example, the mounting portion 150 and the side plate 140 can be connected by welding, integral molding connection or fastener connection and the like.

[0110] For example, the mounting lug 340 and the shell 310 can be connected by welding, integral molding connection or fastener connection and the like.

[0111] The mounting portion 150 is arranged outside the side plate 140, so that the mounting portion 150 is more easily fixedly connected with the base 200, to ensure the connection reliability of the slot body 100 and the base 200, and can also provide a structural basis for the installation of the shell 310. The mounting portion 150 is arranged at the top of the side plate 140, so that the mounting portion 150 is close to the base surface 220, facilitating the installation personnel to fix the slot body 100.

[0112] The mounting lug 340 of the shell 310 is matched with the mounting portion 150 of the slot body 100, and when the display module 300 is installed on the slot body 100, the base 200 can support the mounting lug 340 through the mounting portion 150, so that the display module 300 can be more reliably positioned on the base 200.

[0113] As Figure 4 and Figure 8 In some embodiments, the mounting portion 150 includes a first sub-portion 151 and a second sub-portion 152 arranged in layers and spaced apart, and the second sub-portion 152 is located on the side of the first sub-portion 151 away from the slot opening 120, along the depth direction (such as the Z direction in Figure 4 The mounting lug 340 is detachably connected with the first sub-portion 151, and the second sub-portion 152 is fixedly connected with the base 200 through a fastener, and the first sub-portion 151 is provided with a first through hole 153 for exposing the fastener.

[0114] For example, the radial cross section of the second sub-portion 152 can be an L-shaped structure, and the long edge end of the L-shaped structure is connected with the side plate 140, and the short edge end extends to the base surface 220 along the depth direction of the slot body 100.

[0115] For example, the radial cross section of the first sub-portion 151 can be an inverted L-shaped structure, and the short edge end of the inverted L-shaped structure is connected with the long edge of the L-shaped structure of the second sub-portion 152, and the long edge end of the inverted L-shaped structure is connected with the short edge of the L-shaped structure of the second sub-portion 152.

[0116] For example, the radial cross section of the second sub-portion 152 can be an L-shaped structure, and the long edge end of the L-shaped structure is connected with the side plate 140, and the short edge end extends to the base surface 220 along the depth direction of the slot body 100. Figure 4 The structure and direction shown in the figure are taken as examples for further description. The first sub-portion 151 is located above the second sub-portion 152, and the top of the first sub-portion 151 (i.e., the long edge of the inverted L-shaped structure) and the part of the second sub-portion 152 not covered by the first sub-portion 151 (i.e., the part of the long edge of the L-shaped structure close to the side plate 140) can be used to support the mounting lug 340. Since the first sub-portion 151 has a larger contact area with the mounting lug 340 and is closer to the base surface 220, the connection structure (such as a fastener such as a screw 700) between the mounting lug 340 and the mounting portion 150 can be arranged in the first sub-portion 151, to ensure the convenient and reliable connection of the display module 300 and the slot body 100.

[0117] Meanwhile, the fastener (e.g. expansion screw 600) for fixing the mounting portion 150 can pass through the first sub-portion 151 through the first through hole 153, the lower part of the fastener continues to pass through the second sub-portion 152 and is connected with the base 200 below, and the upper part of the fastener remains between the first sub-portion 151 and the second sub-portion 152. The installer can insert a tool (e.g. screwdriver) into the first through hole 153 and act on the fastener. When the lower part of the fastener is reliably connected with the base 200, the upper part of the fastener can abut against the second sub-portion 152, thereby fixing the mounting portion 150 with the base 200 to ensure reliable connection of the slot body 100 with the base 200.

[0118] As Figure 3 , Figure 13 , Figure 14 and Figure 15 In some embodiments, a mounting space 350 is formed between the display module 320 and the shell 310, and the surface of the shell 310 close to the mounting space 350 is connected with a functional assembly 900, which is electrically connected with the display module 320 and the plug 330 respectively.

[0119] For example, the functional assembly 900 includes a control board 910 and a power board 920.

[0120] For example, the control board 910 is connected with one of the plugs 330 on the shell 310, and the power board 920 is connected with the other plug 330.

[0121] For example, as Figure 15 , the inner walls of the opposite sides of the shell 310 along the first direction are connected with protruding support strips 360, which extend along the second direction. When the display module 320 is loaded into the shell 310, the support strips 360 are used to support the display module 320, so that the mounting space 350 can be formed between the display module 320 and the bottom of the shell 310.

[0122] For example, the functional assembly 900 can be electrically connected with the display module 320 and the plug 330 through an electric connecting wire or a flexible circuit board.

[0123] The electric devices in the display module 300 except the display module 320 can be installed in the mounting space 350 inside the shell 310, which facilitates the installation and layout of the electric devices in the display module 300. The shell 310 not only provides a structural basis for the installation of the electric devices such as the functional assembly 900, but also protects them, which helps to improve the service life of the display module 300. Meanwhile, since the plug 330 is connected at the bottom of the shell 310, it is also convenient to electrically connect the functional assembly 900 with the plug 330 by connecting the functional assembly 900 in the mounting space 350 inside the shell 310.

[0124] For example, as Figure 16and Figure 17 In some embodiments, a connection groove 810 for inserting the plug 330 is provided at the top of the socket 800, and a mounting groove 811 is provided around the groove wall of the connection groove 810. A socket sealing ring 820 is provided in the mounting groove 811. The diameter of the socket sealing ring 820 is a, and the width of the mounting groove 811 is b, 1.2b≤a≤1.5b.

[0125] For example, Figure 17 , the interference amount of the socket sealing ring 820 is c.

[0126] Exemplarily, the diameter a of the socket sealing ring 820 may be 1.2b, 1.3b, 1.4b or 1.5b.

[0127] In this embodiment, if the diameter of the socket sealing ring 820 is too large, it will be difficult to install it in the installation groove 811 and will also hinder the insertion of the plug 330 into the connection groove 810. If the diameter of the socket sealing ring 820 is too small, the socket sealing ring 820 in the installation groove 811 will not be able to deform when in contact with the plug 330, and will not be able to provide a seal. Therefore, defining the relationship between a and b ensures that when the plug 330 is successfully inserted into the connection groove 810, the socket sealing ring 820 can be squeezed and deformed, thereby providing a more reliable seal, and the waterproof rating between the plug 330 and the socket 800 can reach IP68. This ensures that the plug 330 and the socket 800 can still achieve a safe and reliable electrical connection even in relatively harsh environments.

[0128] like Figure 3 、 Figure 4 、 Figure 18 、 Figure 19 and Figure 20 In some embodiments, the display module 300 includes a transparent protective layer 380 disposed on the light-emitting side 321 of the display module, and a transparent elastic sealing layer 370 is disposed between the transparent protective layer 380 and the display module 320 .

[0129] Exemplarily, the elastic sealing layer 370 may be formed by curing the transparent silicone 371 .

[0130] Exemplarily, the transparent protective layer 380 may be tempered glass.

[0131] After the display module 320 is installed in the shell 310, the light-emitting side 321 of the display module faces the shell opening 311. The elastic sealing layer 370 is arranged on the light-emitting side 321 of the display module, and then the transparent protective layer 380 is connected to the side of the elastic sealing layer 370 away from the display module 320. The elastic sealing layer 370 can prevent external water vapor from entering the display module 320 to some extent, which helps to improve the waterproof performance of the display module 300. On the other hand, the elastic sealing layer 370 can also protect the display module 320. When the passenger steps on the transparent protective layer 380, the elastic sealing layer 370 can reduce the impact transmitted to the display module 320 by the transparent protective layer 380, which helps to prolong the service life of the display module 320.

[0132] As Figure 21 and Figure 22 In some embodiments, the opposite two side walls of the shell 310 are respectively connected with the mounting lugs 340, the mounting lug 340 includes the first sub-lug 341, the second sub-lug 342 and the third sub-lug 343 connected in sequence in the direction away from the side wall of the shell 310 and in Z shape, and the transparent protective layer 380 extends to the space between the first sub-lug 341 and the second sub-lug 342 in the first direction.

[0133] For example, the first sub-lug 341, the second sub-lug 342 and the third sub-lug 343 are all in sheet structure.

[0134] For example, as Figure 4 the first sub-lug 341 is supported by the second sub-lug 152, and the third sub-lug 343 is supported by the first sub-lug 151.

[0135] For example, as Figure 22 shown in the structure and direction, the first sub-lug 341 is horizontally arranged on the outside of the shell 310, one side of which is connected with the top of the outer side wall of the shell 310, and the other side is connected with the second sub-lug 342. The second sub-lug 342 is vertically arranged upward, and the side away from the first sub-lug 341 is connected with the third sub-lug 343. The third sub-lug 343 is horizontally arranged and extends away from the shell 310 in the direction of the first sub-lug 341.

[0136] The transparent protective layer 380 extends into the L-shaped structure formed by the first sub-lug 341 and the second sub-lug 342 in the first direction, and the first sub-lug 341 can support the transparent protective layer 380.

[0137] For example, as Figure 20 in some embodiments, the transparent protective layer 380 extends to the outside of the shell 310 in the second direction, and the second direction is perpendicular to the first direction.

[0138] The top of the two side walls of the shell 310 arranged opposite in the second direction is provided with a notch corresponding to the transparent protective layer 380, and the transparent protective layer 380 can extend out of the shell 310 through the notch.

[0139] When a plurality of display modules 300 are arranged in the second direction in the slot body 100, the transparent protective layer 380 extends to the outside of the shell 310 in the second direction. Since the transparent protective layer 380 does not block the light emitted by the display module 320, the adjacent display modules 300 can splice to display a more complete image, avoiding the image displayed by the adjacent two display modules 300 being split by the shell 310 due to the existence of the shell 310 between the display modules 320 of the two display modules 300, affecting the visual effect.

[0140] As shown in FIG. 6, the surface of the transparent protective layer 380 is flush with the surface of the third sub-ear 343. Figure 4 In some embodiments, the surface of the transparent protective layer 380, the surface of the third sub-ear 343, and the surface of the base body 220 are flush.

[0141] Since the passengers need to walk between the surface of the base body 220 and the surface of the transparent protective layer 380, if there is a height difference between the surface of the base body 220 and the surface of the transparent protective layer 380, it may cause the passengers to walk inconveniently or even be tripped. In order to avoid the above situation, the surface of the transparent protective layer 380, the surface of the third sub-ear 343, and the surface of the base body 220 are designed to be flush, so as to ensure that the passengers can normally walk between the surface of the base body 220 and the surface of the transparent protective layer 380, and ensure the safety of the passengers.

[0142] As shown in FIG. 6, the surface of the transparent protective layer 380 is flush with the surface of the third sub-ear 343. Figure 22 In some embodiments, a sealing layer 390 is arranged between the display module 320 and the shell 310, and between the transparent protective layer 380 and the mounting ear 340, respectively.

[0143] For example, the sealing layer 390 can be made of the same material as the elastic sealing layer 370.

[0144] Exemplarily, the sealing layer 390 and the elastic sealing layer 370 can both be transparent silicone 371 cured. When the display module 320 is installed and the transparent protective layer 380 is not yet installed, the transparent silicone 371 can be filled into the surface of the display module 320 and the gap between the display module 320 and the inner wall of the shell 310. Then, the transparent protective layer 380 is placed on the transparent silicone 371 which has not yet cured. Under the extrusion of the transparent protective layer 380, the transparent silicone 371 can flow into the gap between the transparent protective layer 380 and the second sub-lug 342 of the mounting lug 340 and fill the gap. After the transparent silicone 371 is cured, the elastic sealing layer 370 is formed between the transparent protective layer 380 and the display module 320; and the sealing layer 390 is formed between the display module 320 and the side wall of the shell 310 and between the transparent protective layer 380 and the mounting lug 340.

[0145] It should be noted that when the transparent protective layer 380 is installed, it is necessary to ensure that there is no bubble between the display module 320 and the transparent protective layer 380 to ensure the display effect of the display module 300.

[0146] In the embodiment, the sealing layer 390 between the display module 320 and the shell 310, the sealing layer 390 between the transparent protective layer 380 and the mounting lug 340, and the elastic sealing layer 370 between the display module 320 and the transparent protective layer 380 can form a continuous sealing structure, thereby completely sealing the gap between the shell 310, the transparent protective layer 380 and the display module 320, achieving the effect of waterproof and moisture-proof, avoiding the occurrence of fog or water droplets in the display module 300, and affecting the display effect, thereby solving the influence of rain, snow and moisture on the display image of the display module 320, and improving the safety and reliability of the display module 300.

[0147] As Figure 3 , Figure 4 , Figure 23 and Figure 24 In some embodiments, the display device includes a protection assembly 1000 disposed on the side of the transparent protective layer 380 away from the display module 320, the protection assembly 1000 is connected to the shell 310 and / or the groove body 100; the protection assembly 1000 covers at least the edge of the transparent protective layer 380, and the protection assembly 1000 does not coincide with the display area of the display module 320 in the orthographic projection of the display module 320.

[0148] Exemplarily, the protection assembly 1000 can be connected to the mounting lug 340 of the shell 310 and / or the mounting portion 150 of the groove body 100 by fasteners such as screws 700.

[0149] The heavy object can cause damage to the edge of the transparent protective layer 380 when passing through the transparent protective layer 380. If the edge of the transparent protective layer 380 is damaged, on the one hand, the appearance of the display device will be affected, and on the other hand, the sealing layer 390 between the transparent protective layer 380 and the mounting lug 340 can be damaged. In order to avoid the above problems, the embodiment covers and protects the edge of the transparent protective layer 380 by the protection assembly 1000, so as to avoid the direct contact of the heavy object with the edge of the transparent protective layer 380, which helps to prolong the service life of the transparent protective layer 380 and enables the display device to maintain good waterproof sealing performance.

[0150] In addition, the protection assembly 1000 arranged on the surface of the transparent protective layer 380 can also play a certain anti-skid role, so as to avoid pedestrians from slipping on the surface of the transparent protective layer 380 in rainy or snowy weather.

[0151] As Figure 25 , Figure 26 , Figure 27 , Figure 28 , Figure 29 , Figure 30 and Figure 31 , the protection assembly 1000 can completely cover the mounting lug 340, the gap between the transparent protective layer 380 and the mounting lug 340, and the edge of the transparent protective layer 380 close to the mounting lug 340, thereby protecting the transparent protective layer 380. Meanwhile, as Figure 27 , the protection assembly 1000 is arranged only at the edge of the display module 300 along the first direction, and will not cause obstruction to the display area of the display module 320, thereby ensuring the normal display of the display module 320.

[0152] It should be noted that in the embodiment of the present application, not only the display module 300 is modularly designed, but also the length of the protection assembly 1000 along the second direction corresponds to the length of a single display module 300. In this way, when one display module 300 mounted on the slot body 100 needs to be removed, only the protection assembly 1000 covering the display module 300 needs to be removed, which will not affect other protection assemblies 1000, thereby helping to reduce the maintenance difficulty and improve the maintenance efficiency.

[0153] As Figure 3 , Figure 4 , Figure 23 and Figure 24 , in some embodiments, the protection assembly 1000 includes an outer sealing layer 1100 and a rigid protective plate 1200 arranged on the side of the outer sealing layer 1100 away from the transparent protective layer 380.

[0154] For example, the rigid protective plate 1200 can be a stainless steel strip plate.

[0155] Exemplarily, the outer sealing layer 1100 extends from the mounting portion 150, the mounting lug 340 to the surface of the transparent protective layer 380 along the second direction through the base 200.

[0156] Exemplarily, the rigid protective plate 1200 completely covers the outer sealing layer 1100.

[0157] The gap between the transparent protective layer 380, the mounting lug 340, the mounting portion 150 and the base 200 on the surface 220 of the base can be covered by the outer sealing layer 1100. After the rigid protective plate 1200 is fixedly connected with the mounting lug 340 or the mounting portion 150, the rigid protective plate 1200 can extrude the outer sealing layer 1100, so that the outer sealing layer 1100 can play a sealing role, further avoiding external water vapor from entering the inside of the display device.

[0158] Meanwhile, the rigid protective plate 1200 can also play a protection role on the outer sealing layer 1100, avoiding the outer sealing layer 1100 from being damaged and losing effectiveness.

[0159] As Figure 2 and Figure 7 In some embodiments, the slot body 100 extends along the second direction, the display module 300 is provided with a plurality of display modules, and the display modules are arranged at intervals along the extension direction of the slot body 100.

[0160] Since the shell 310 of the display module 300 is usually made of metal, when the display device is installed outdoors, the shell 310 will be affected by the temperature of the weather and will expand and contract with heat. If the display modules 300 are closely arranged in the slot body 100, when the temperature rises in summer, the thermal expansion of the shell 310 will extrude the display module 320, which is easy to damage the display module 320 and cause the display device to display abnormally.

[0161] Meanwhile, when the display device is installed on a train platform, the train will produce violent vibration. If the display modules 300 are closely arranged in the slot body 100, a large impact force will be generated between the metal shells 310 of the display modules 300, which will also extrude each other and cause the display module 320 to break or display abnormally.

[0162] In order to avoid the above situation, the present embodiment arranges a plurality of display modules 300 in the slot body 100 at intervals, and leaves a gap between the adjacent two display modules 300, so as to ensure that the adjacent display modules 300 will not be adversely affected when the display modules 300 expand with heat or vibrate.

[0163] As Figure 31 and Figure 32In some embodiments, the display device comprises the rigid backboard 1200, the shell 310 and the transparent protective layer 380, the total thickness of the three is m, the gap distance between the adjacent two display modules 300 is n, m is positively correlated with n.

[0164] For example, the shell 310 and the mounting lug 340 are integrally formed, and the thickness of the shell 310 is the same as the thickness of the mounting lug 340.

[0165] The applicant found that in the display module 300, not only the shell 310 will produce thermal expansion and contraction phenomenon, but also the transparent protective layer 380 made of tempered glass and the rigid backboard 1200 made of metal will produce thermal expansion and contraction phenomenon. Therefore, when designing the gap distance n between the adjacent two display modules 300, the thickness of the above three needs to be considered. The greater the total thickness m of the above three, the greater n needs to be designed, so as to reserve enough space for the expansion of the above three.

[0166] In some embodiments, m / 2≤n≤m.

[0167] If n is too large, the gap between the adjacent two display modules 300 will be too obvious, and the overall display effect of the multiple display modules 300 will be adversely affected. If n is too small, the adjacent display module 300 will still be squeezed when the display module 300 is heated and expanded. Therefore, the relationship between n and m is limited in this embodiment to protect the display module 300 while ensuring the overall display effect of the multiple display modules 300 as much as possible.

[0168] For example, Figure 33 In some embodiments, a gap sealing layer 2000 is arranged between the adjacent two display modules 300.

[0169] For example, the gap sealing layer 2000 can be formed by curing engineering sealant.

[0170] For example, the gap sealing layer 2000 is a transparent structure layer.

[0171] The gap sealing layer 2000 is arranged in the gap between the two adjacent display modules 300. In a first aspect, the gap sealing layer 2000 can prevent external water vapor and sundries from entering the slot body 100 through the gap, thereby avoiding adverse effects on the socket 800, the plug 330, and the cable in the slot body 100. In a second aspect, since the edge of the transparent protective layer 380 is exposed in the second direction, the gap sealing layer 2000 can also protect the edge of the transparent protective layer 380, thereby avoiding the edge of the transparent protective layer 380 from being knocked by heavy objects such as moving passengers or luggage, and helping to improve the service life of the transparent protective layer 380. In a third aspect, the gap sealing layer 2000 can also make the display device more aesthetically pleasing by plugging the gap between the two adjacent display modules 300.

[0172] As Figure 34 In some embodiments, the gap between the display module 300 and the slot body 100 forms a flow channel 3000, and at least one end of the slot body 100 in the extension direction is provided with a slot body opening 160 that communicates with the flow channel 3000.

[0173] When water vapor enters the slot body 100, it can condense into liquid in the flow channel 3000 and flow to the slot body opening 160 through the flow channel 3000 as a drain, and finally be discharged, thereby ensuring that the display module 300 can normally display in a relatively dry environment and will not be affected by water vapor.

[0174] In some embodiments, the base 200 includes a train platform.

[0175] The display module 300 can display a waiting safety line warning, a train number stop indication, a train compartment arrangement direction indication, a train compartment door opening position indication, a train stop countdown, a door closing warning, or an advertisement, etc. under the control of the control system of the train station.

[0176] As Figure 33 In some embodiments, the base surface 220 is provided with a functional structure 500, and the distance L between the slot body 100 and the functional structure 500 is not less than 100 mm.

[0177] For example, the functional structure 500 can be a blind path.

[0178] For example, in the first direction, the functional structure 500 is arranged on at least one side of the display device.

[0179] If the functional structure 500 is too close to the display device, the disassembly or maintenance of one of the functional structure 500 and the display device may affect the other. Therefore, the present embodiment limits the distance L to ensure that the display device and the functional structure 500 do not affect each other.

[0180] In addition, when the functional structure 500 is a sidewalk, the display device is arranged away from the sidewalk, so that the blind person can avoid walking directly on the display module 300, which reduces the wear of the display module 300 and prevents the blind person from falling on the display module 300 in rainy and snowy weather.

[0181] It should be noted that the above describes some embodiments of the present application. Other embodiments are within the scope of the appended claims.

[0182] Each of the embodiments in the present application is described in a progressive manner, and each embodiment focuses on the difference from other embodiments. The same or similar parts between the embodiments can be understood by mutual reference.

[0183] The description of the present application is given for the purpose of illustration and description, and is not exhaustive or limiting to the present application. Many modifications and variations will be apparent to those of ordinary skill in the art. The embodiments are chosen and described in order to better illustrate the principles and practical application of the present application, and to enable those of ordinary skill in the art to understand the present application in order to design various embodiments with various modifications for specific use.

[0184] Those of ordinary skill in the art should understand that the above discussion of any embodiment is only exemplary and is not intended to suggest that the scope of the present application is limited to these examples; under the idea of the present application, the above embodiments or technical features in different embodiments can also be combined, the steps can be implemented in any order, and there are many other changes of different aspects of the embodiments of the present application as described above. In order to be brief, they are not provided in details.

[0185] Although the present application has been described in conjunction with specific embodiments thereof, many alternatives, modifications and variations will be apparent to those of ordinary skill in the art in light of the foregoing description.

[0186] The embodiments of the present application are intended to cover all such alternatives, modifications and variations as falling within the scope of the present application. Accordingly, any omission, modification, equivalent replacement, improvement, etc. made within the spirit and principle of the embodiments of the present application shall be included in the protection scope of the present application.

Claims

1. A display device, characterized by comprising: include: A trough body is embedded in the base body, the trough body is provided with a receiving cavity and a notch communicating with the receiving cavity, and the notch is close to the surface of the base body; At least one display module is positioned in the accommodating cavity and is detachably connected to the slot body; the light-emitting side of the display module faces the slot.

2. The display device according to claim 1, wherein The tank body includes a bottom plate and two side plates connected to both sides of the bottom plate along a first direction, wherein the bottom plate and the two side plates together form the accommodating cavity; a socket is connected to a side of the bottom plate close to the accommodating cavity, and the socket is electrically connected to a power source and / or a signal source; The display module includes a shell, a plug and a display module; the shell includes a shell opening arranged at the top, the display module is positioned inside the shell, and the light-emitting side of the display module is close to the shell opening; the plug is sealed and connected to the bottom of the shell; when the shell is connected to the slot body, the display module is electrically connected to the socket through the plug.

3. The display device according to claim 2, wherein The trough body includes a mounting portion provided on a side of the side plate away from the accommodating cavity, the mounting portion being connected to a top portion of the side plate close to the notch, and the trough body being fixedly connected to the base body via the mounting portion; The two opposite side walls of the shell are respectively connected with mounting ears, the mounting portion supports the mounting ears, and the shell is detachably connected to the mounting portion through the mounting ears.

4. The display device according to claim 3, wherein The mounting portion includes a first sub-portion and a second sub-portion stacked and spaced apart, wherein along the depth direction of the slot body, the second sub-portion is located on a side of the first sub-portion away from the slot opening; The mounting lug is detachably connected to the first sub-section, the second sub-section is fixedly connected to the base via a fastener, and the first sub-section is provided with a first through hole for exposing the fastener.

5. The display device according to claim 2, wherein An installation space is formed between the display module and the housing. A functional component is connected to a surface of the housing close to the installation space. The functional component is electrically connected to the display module and the plug respectively.

6. The display device according to claim 2, wherein A connecting groove for inserting the plug is provided at the top of the socket, a mounting groove is provided around the groove wall of the connecting groove, a socket sealing ring is provided in the mounting groove, the diameter of the socket sealing ring is a, the width of the mounting groove is b, 1.2b≤a≤1.5b.

7. The display device according to claim 2, wherein The display module comprises a transparent protective layer arranged on the light-emitting side of the display module, and a transparent elastic sealing layer is arranged between the transparent protective layer and the display module.

8. The display device according to claim 7, wherein The opposite side walls of the shell are respectively connected to mounting ears, and the mounting ears include a first sub-ear, a second sub-ear, and a third sub-ear that are connected in sequence and in a Z shape along a direction away from the side wall of the shell. The transparent protective layer extends between the first sub-ear and the second sub-ear along the first direction.

9. The display device according to claim 8, wherein The transparent protective layer extends along a second direction outside the housing, and the second direction is perpendicular to the first direction.

10. The display device according to claim 8, wherein The surface of the transparent protective layer and the surface of the third sub-branch are flush with the surface of the base.

11. The display device according to claim 8, wherein A sealing layer is provided between the display module and the housing, and between the transparent protective layer and the mounting ears.

12. The display device according to claim 7, wherein The display device comprises a protection assembly arranged on a side of the transparent protection layer away from the display module, and the protection assembly is connected to the shell and / or the groove body; The protection assembly covers at least the edge of the transparent protection layer, and the protection assembly does not overlap the display area of the display module in the orthographic projection of the display module.

13. The display device of claim 12, wherein, The protection assembly comprises an outer sealing layer and a rigid protective plate arranged on a side of the outer sealing layer away from the transparent protection layer.

14. The display device of claim 1, wherein The groove body extends along a second direction, and a plurality of display modules are arranged along the extension direction of the groove body.

15. The display device of claim 14, wherein, The display device comprises a rigid protective plate, a shell and a transparent protection layer, the total thickness of the three is m, the gap distance between adjacent two display modules is n, and m is positively correlated with n.

16. The display device of claim 15, wherein, m / 2≤n≤m.

17. The display device of claim 14, wherein, A gap sealing layer is arranged between adjacent two display modules.

18. The display device of claim 1, wherein The gap between the display module and the groove body forms a flow channel, and at least one end of the extension direction of the groove body is provided with a groove opening in communication with the flow channel.

19. The display device of claim 1, wherein The base body comprises a train platform.

20. The display device of claim 1, wherein The surface of the base body is provided with a functional structure, and the interval distance between the groove body and the functional structure is not less than 100 mm.

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