Display device and tiled display device

Abstract

The utility model provides a display device and a tiled display device, and belongs to the technical field of display. The display device comprises a display module and a lamp panel, the display module comprises a display panel and a cover plate arranged on the light emitting side of the display panel. The cover plate comprises a first surface close to the light emitting side and a second surface which is connected with the first surface and surrounds the periphery of the cover plate; the multiple lamp panels are sequentially spliced at the two ends in the length direction of the lamp panels and arranged around the surrounding cover plate. The lamp panel is in contact with the second surface of the cover plate; the third surface, located on the light emitting side, of the lamp panel is flush with the first surface.

Description

Technical Field

[0001] The present disclosure belongs to the field of display technology, and particularly relates to a display device and a spliced display device. Background Art

[0002] Traditional liquid crystal displays (LCDs) are limited by their manufacturing process, preventing them from achieving borderless displays. Similarly, traditional LCD video wall modules are limited by their manufacturing process, preventing them from achieving zero seam spacing. Their narrowest seam is 0.8mm, still perceptible to users. The ultimate goal of video wall display products is to eliminate seams and create seamless products. Summary of the Invention

[0003] The present disclosure aims to solve at least one of the technical problems existing in the prior art and provides a display device and a spliced display device.

[0004] In a first aspect, the technical solution adopted to solve the technical problem of the present disclosure is a display device, comprising: a display module and a light board;

[0005] The display module includes a display panel and a cover plate arranged on the light-emitting side of the display panel; the cover plate includes a first surface close to the light-emitting side, and a second surface connected to the first surface and surrounding the cover plate;

[0006] The light boards include multiple ones, and the multiple light boards are spliced in sequence at both ends along their length direction and arranged around the cover plate; the light boards are in contact with the second surface of the cover plate; the third surface of the light board on the light emitting side is flush with the first surface.

[0007] In some embodiments, the display device further comprises a light panel bracket provided on the backlight side of the light panel; the display module further comprises a back panel provided on the display panel away from the light emitting side;

[0008] The light board bracket is an integrated structure, nested around the back panel, and detachably connected to the back panel; or, the light board bracket includes multiple, multiple light board brackets are connected end to end, and surround the back panel, and are detachably connected to the back panel.

[0009] In some embodiments, the light board includes a base plate, a light emitting device disposed on the base plate near the light emitting side, and a first fixing member and a driver chip disposed on a side of the base plate away from the light emitting device; the driver chip is used to control the light emitting device to emit light;

[0010] The lamp board bracket includes a first support plate and a second support plate connected to and opposite to the first support plate; the first support plate and the two second support plates form a accommodating cavity, the driving chip and the first fixing member are both located in the accommodating cavity, and the first fixing member is detachably connected to the first support plate.

[0011] In some embodiments, the first fixing member is a magnetic member; the light panel bracket includes a first magnet fixed in the accommodating cavity; the first magnet magnetically fixes the magnetic member.

[0012] In some embodiments, the display device further includes a first connecting member;

[0013] The first fixing member is a rivet column; the first supporting plate includes a first through hole; the rivet column cooperates with the first through hole, and the first connecting member passes through the first through hole and is detachably connected to the rivet column.

[0014] In some embodiments, the lamp board also includes a second fixing member arranged on the side of the base plate away from the light-emitting device; the second fixing member includes a fixing portion in contact with the base plate and a positioning portion located on the side of the fixing portion away from the base plate; the first support plate includes a second through hole; the positioning portion cooperates with the second through hole to position the light board.

[0015] In some embodiments, the display device further includes a second connecting member; the second supporting plate includes a third through hole, and the second connecting member passes through the third through hole and is detachably connected to the back plate; or,

[0016] The light panel bracket further includes a second magnet disposed on a side of the second support plate away from the accommodating cavity, and the second magnet is magnetically fixed to the back plate.

[0017] In some embodiments, the light board further comprises a light board connector provided on a side of the base plate away from the light-emitting device; the display device further comprises a switching assembly, a light board driving board fixed on a side of the back plate away from the display panel, and a light board control line;

[0018] The adapter assembly includes an adapter plate, a first connector and a second connector, wherein the first connector and the second connector are respectively located on two sides of the adapter plate that are opposite to each other along the thickness direction; the adapter plate is located in the accommodating cavity and is detachably connected to the first support plate; the first connector is plugged into the light board connector; the first support plate has a hollow portion, the second connector passes through the hollow portion, and is electrically connected to the light board driving board through the light board control line.

[0019] In some embodiments, the light-emitting device is any one of a micro light-emitting diode, a micro organic light-emitting diode, or a sub-millimeter wave light-emitting diode.

[0020] In some embodiments, the lamp board includes a bottom plate, a light-emitting device disposed on the bottom plate near the light-emitting side, and a first fixing member, a driving chip, and a lamp board connector disposed on the side of the bottom plate facing away from the light-emitting device; the driving chip is configured to control the light-emitting device to emit light;

[0021] The lamp board bracket includes a first support plate and a second support plate connected to and oppositely disposed relative to the first support plate; an accommodation cavity is formed between the first support plate and the two second support plates, the driving chip and the first fixing member are both located in the accommodation cavity, and the first fixing member is detachably connected to the first support plate;

[0022] The display module further includes a back plate disposed on the side of the display panel facing away from the light-emitting side; the display device further includes a lamp board driving board and a lamp board control line fixed on the side facing away from the display panel;

[0023] The first support plate has a hollowed-out portion, and the lamp board connector is electrically connected to the lamp board driving board through a lamp board control line passing through the hollowed-out portion.

[0024] In some embodiments, the display module has a display area and a non-display area surrounding the display area;

[0025] The cover plate is located in the display area, the display panel is at least located in the display area, and the orthographic projection of the display panel on the horizontal reference plane covers the orthographic projection of the cover plate on the horizontal reference plane;

[0026] Extending from the display area to the non-display area, the lamp board extends from the non-display area to the display area;

[0027] The display module further includes an optical component disposed on the side of the display panel away from the cover plate; the optical component extends from the display area to the non-display area.

[0028] In some embodiments, the surface of the lamp board facing away from the light-emitting side has a clearance area and a component setting area; the first fixing member, the driving chip, and the lamp board connector are disposed in the component setting area;

[0029] The display module further includes a front frame and a middle frame; the front frame includes a first sub - part disposed on one side of the middle frame close to the light board, and a second sub - part connected to one end of the first sub - part and extending away from the light board side, and disposed on the side of the middle frame away from the display area; the middle frame includes a third sub - part disposed opposite to the second sub - part, a fourth sub - part connected to the middle area of the third sub - part and extending towards the display area side, the fourth sub - part is parallel to the first sub - part, and a fifth sub - part connected to the fourth sub - part and parallel to the third sub - part; a groove is formed between the fifth sub - part and the third sub - part, and the side wall of the back plate is snapped into the groove;

[0030] The light board located in the clearance area is lapped on the side of the first sub - part away from the fourth sub - part;

[0031] The display panel is fixed to the side of the first sub - part close to the fourth sub - part through a first adhesive layer, and the display panel is fixed to the side of the fourth sub - part close to the first sub - part through a second adhesive layer;

[0032] The optical component is fixed to the side of the fourth sub - part away from the first sub - part through a third adhesive layer.

[0033] In a second aspect, the embodiments of the present disclosure further provide a splicing display device, including a plurality of spliced display devices as described in any one of the first aspect.

[0034] In a third aspect, the embodiments of the present disclosure further provide a splicing display device, including a plurality of spliced display modules and light boards; the display module has a splicing side;

[0035] The display module includes a display panel and a cover plate disposed on the light - emitting side of the display panel; the cover plate includes a first surface close to the light - emitting side, and a second surface connected to the first surface and surrounding the periphery of the cover plate;

[0036] The light board is disposed on at least two sides surrounding the cover plate, and at least two sides of the cover plate include the splicing side; the light board is in contact with the second surface of the cover plate, and the third surface of the light board located on the light - emitting side is flush with the first surface.

[0037] In some embodiments, the plurality of spliced display modules include M×N spliced display modules, where both M and N are positive integers greater than or equal to 2; the light boards include a plurality, and the plurality of light boards are spliced in sequence at both ends along their length directions and are disposed between adjacent cover plates.

[0038] In some embodiments, the splicing display device further includes a light - board bracket disposed on the backlight side of the light board;

[0039] The lamp board bracket is an integral structure, which is correspondingly arranged with a plurality of spliced lamp boards, and is detachably connected to at least one adjacent display module; alternatively, there are a plurality of the lamp board brackets, the lamp board brackets are arranged in one-to-one correspondence with the lamp boards, and each lamp board bracket is detachably connected to at least one adjacent display module.

[0040] In some embodiments, the plurality of spliced display modules include M×N spliced display modules, where both M and N are positive integers greater than or equal to 2; there are a plurality of the lamp boards, and the plurality of lamp boards are sequentially spliced at both ends along their length directions and are arranged around the periphery of the cover plate.

[0041] In some embodiments, the spliced display device further includes a lamp board bracket arranged on the backlight side of the lamp board;

[0042] The lamp board bracket is an integral structure, nested around the display module, and is detachably connected to at least one adjacent display module; alternatively, there are a plurality of the lamp board brackets, the plurality of lamp board brackets are connected end to end and surround the display module, and are detachably connected to at least one adjacent display module.

[0043] In some embodiments, the lamp board includes a bottom plate, light-emitting devices arranged on the bottom plate near the light-emitting side, and a first fixing member and a driving chip arranged on the side of the bottom plate facing away from the light-emitting devices; the driving chip is used to control the light-emitting devices to emit light;

[0044] The lamp board bracket includes a first support plate and a second support plate connected to and oppositely arranged with the first support plate; an accommodation cavity is formed between the first support plate and the two second support plates, the driving chip and the first fixing member are both located in the accommodation cavity, and the first fixing member is detachably connected to the first support plate.

[0045] In some embodiments, the first fixing member is a magnetic member; the lamp board bracket includes a first magnet fixed in the accommodation cavity; the first magnet magnetically attracts and fixes the magnetic member.

[0046] In some embodiments, the spliced display device further includes a first connecting member;

[0047] The first fixing member is a rivet post; the first support plate includes a first through hole; the rivet post cooperates with the first through hole, and the first connecting member passes through the first through hole and is detachably connected to the rivet post.

[0048] In some embodiments, the lamp board also includes a second fixing member arranged on the side of the base plate away from the light-emitting device; the second fixing member includes a fixing portion in contact with the base plate and a positioning portion located on the side of the fixing portion away from the base plate; the first support plate includes a second through hole; the positioning portion cooperates with the second through hole to position the light board.

[0049] In some embodiments, the display module further includes a back plate disposed on a side of the display panel facing away from the light emitting side;

[0050] The spliced display device further includes a second connecting member; the second supporting plate includes a third through hole, the second connecting member passes through the third through hole and is detachably connected to the back plate; or,

[0051] The light panel bracket further includes a second magnet disposed on a side of the second support plate away from the accommodating cavity, and the second magnet is magnetically fixed to the back plate.

[0052] In some embodiments, the display module further includes a back panel provided on the side of the display panel away from the light emitting side; the light panel further includes a light panel connector provided on the side of the bottom panel away from the light emitting device; the spliced display device further includes a switching assembly, a light panel driving board fixed to the side of the back panel away from the display panel, and a light panel control line;

[0053] The adapter assembly includes an adapter plate, a first connector and a second connector, wherein the first connector and the second connector are respectively located on two sides of the adapter plate that are opposite to each other along the thickness direction; the adapter plate is located in the accommodating cavity and is detachably connected to the first support plate; the first connector is plugged into the light board connector; the first support plate has a hollow portion, the second connector passes through the hollow portion, and is electrically connected to the light board driving board through the light board control line.

[0054] In some embodiments, the light emitting device is any one of a micro light emitting diode, a micro organic light emitting diode or a sub-millimeter wave light emitting diode.

[0055] In some embodiments, the light board includes a base plate, a light emitting device disposed on the base plate near the light emitting side, and a first fixing member, a driver chip, and a light board connector disposed on a side of the base plate away from the light emitting device; the driver chip is used to control the light emitting device to emit light;

[0056] The lamp panel bracket includes a first support plate and a second support plate connected to and opposite to the first support plate; the first support plate and the two second support plates form an accommodating cavity, the driver chip and the first fixing member are both located in the accommodating cavity, and the first fixing member is detachably connected to the first support plate;

[0057] The display module further includes a backplane disposed on the side of the display panel facing away from the light-emitting side; the tiled display device further includes a lamp board driving board and a lamp board control line fixed on the side of the backplane close to the display panel;

[0058] The first support plate has a hollow portion, and the lamp board connector is electrically connected to the lamp board driving board through a lamp board control line passing through the hollow portion.

[0059] In some embodiments, the display module has a display area and a non-display area surrounding the display area;

[0060] The cover plate is located in the display area, the display panel extends from the display area to the non-display area, and the lamp board extends from the non-display area to the display area;

[0061] The display module further includes an optical component disposed on the side of the display panel away from the cover plate; the optical component extends from the display area to the non-display area.

[0062] In some embodiments, the surface of the lamp board facing away from the light-emitting side has a clearance area and a component setting area; a first fixing member, a driving chip, and a lamp board connector are disposed in the component setting area;

[0063] The display module further includes a front frame and a middle frame; the front frame includes a first sub-part disposed on the side of the middle frame close to the lamp board, and a second sub-part connected to one end of the first sub-part and extending away from the lamp board and disposed on the side of the middle frame away from the display area; the middle frame includes a third sub-part disposed opposite to the second sub-part, a fourth sub-part connected to the middle area of the third sub-part and extending toward the display area, the fourth sub-part being parallel to the first sub-part, and a fifth sub-part connected to the fourth sub-part and parallel to the third sub-part; a groove is formed between the fifth sub-part and the third sub-part, and the side wall of the backplane is snapped into the groove;

[0064] The lamp board located in the clearance area is lapped on the side of the first sub-part away from the fourth sub-part;

[0065] The display panel is fixed to the side of the first sub-part close to the fourth sub-part through a first adhesive layer, and the display panel is fixed to the side of the fourth sub-part close to the first sub-part through a second adhesive layer;

[0066] The optical component is fixed to the side of the fourth sub-part away from the first sub-part through a third adhesive layer.

[0067] In some embodiments, the display module further includes a back panel provided on the display panel away from the light-emitting side; the spliced display device further includes a control box provided corresponding to the display module, wherein a light board driving board and a power board are provided in the control box; the power board is electrically connected to the light board driving board for supplying power to the light board driving board;

[0068] The spliced display device further includes a third magnet, which is fixed to the outer surface of the control box and is magnetically fixed to a side of the back plate away from the display panel. BRIEF DESCRIPTION OF THE DRAWINGS

[0069] Figure 1 This is a schematic diagram of the effect of large viewing angle black edges on existing spliced display screens;

[0070] Figure 2 A schematic diagram of a light-emitting side surface of a display device provided in an embodiment of the present disclosure;

[0071] Figure 3 A schematic diagram of a film layer stacking of a display device provided by an embodiment of the present disclosure;

[0072] Figure 4 A schematic diagram showing the principle of eliminating seams when viewing a display device with a wide viewing angle according to an embodiment of the present disclosure;

[0073] Figure 5 Schematic diagrams of different examples of light panels spliced on two adjacent sides of a display module provided by an embodiment of the present disclosure;

[0074] Figure 6 Schematic diagrams of different examples of three-side spliced light panels adjacent to each other in the display module provided by the embodiment of the present disclosure;

[0075] Figure 7 An exploded structural diagram of a display device provided in an embodiment of the present disclosure;

[0076] Figure 8a A schematic diagram of a light board provided in an embodiment of the present disclosure;

[0077] Figure 8b A schematic diagram of another light panel provided in an embodiment of the present disclosure;

[0078] Figure 8c for Figure 8b Back view of the structure;

[0079] Figure 8d for Figure 8b Front view of the structure;

[0080] Figure 9a A front view of a light panel bracket provided in an embodiment of the present disclosure;

[0081] Figure 9b A rear view of a light panel bracket provided in an embodiment of the present disclosure;

[0082] Figure 9c This is an enlarged view of the holes on the front of the light panel bracket;

[0083] Figure 9d This is an exploded diagram of the light panel bracket and adapter assembly;

[0084] Figure 9e This is a schematic diagram of the assembly of the light panel bracket, adapter component and display module;

[0085] Figure 10 A schematic diagram of another light panel bracket provided in an embodiment of the present disclosure;

[0086] Figure 11a A schematic diagram of assembling a light board and a light board bracket according to an embodiment of the present disclosure;

[0087] Figure 11b A schematic diagram of assembling another light panel and a light panel bracket according to an embodiment of the present disclosure;

[0088] Figure 11c A schematic diagram of the positioning of the light board and the light board bracket provided in an embodiment of the present disclosure;

[0089] Figure 11d A schematic diagram of a fixing method of a light panel bracket provided in an embodiment of the present disclosure;

[0090] Figure 11e A schematic diagram of another fixing method of the light panel bracket provided in an embodiment of the present disclosure;

[0091] Figure 11f A schematic diagram of an electrical connection relationship of a light panel provided in an embodiment of the present disclosure;

[0092] Figure 11g A schematic diagram of another electrical connection relationship of a light board provided in an embodiment of the present disclosure;

[0093] Figure 12 A schematic diagram of the structure of a light board control line and a light board driver board provided in an embodiment of the present disclosure;

[0094] Figure 13 A schematic diagram of a spliced display device provided in an embodiment of the present disclosure;

[0095] Figure 14 A schematic diagram of another spliced display device provided by an embodiment of the present disclosure;

[0096] Figure 15 A schematic diagram of another spliced display device provided by an embodiment of the present disclosure;

[0097] Figure 16 Schematic diagram of an independent light board system provided by an embodiment of the present disclosure;

[0098] Figure 17 Exploded view of the splicing of a light board and a display module provided by an embodiment of the present disclosure;

[0099] Figure 18 Schematic diagram of another splicing display device provided by an embodiment of the present disclosure;

[0100] Figure 19a and Figure 19b Schematic diagram of the splicing side of the display module and the splicing of the light board on different non-splicing sides provided by an embodiment of the present disclosure;

[0101] Figure 20 Schematic diagram of an integrated light board bracket provided by an embodiment of the present disclosure;

[0102] Figure 21 Exploded schematic diagram of a split light board bracket and a display module provided by an embodiment of the present disclosure;

[0103] Figure 22 Schematic diagram of the structure of a single split light board bracket provided by an embodiment of the present disclosure;

[0104] Figure 23a Schematic diagram of the structure of another light board control line and a light board driving board provided by an embodiment of the present disclosure;

[0105] Figure 23b Schematic diagram of the structure of a control box provided by an embodiment of the present disclosure. Detailed implementation manners

[0106] To make the objectives, technical solutions, and advantages of the embodiments of the present disclosure clearer, the technical solutions in the embodiments of the present disclosure will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present disclosure. Apparently, the described embodiments are only some of the embodiments of the present disclosure, rather than all the embodiments. Usually, the components of the embodiments of the present disclosure described and illustrated herein can be arranged and designed in various different configurations. Therefore, the following detailed description of the embodiments of the present disclosure provided in the accompanying drawings is not intended to limit the scope of the present disclosure to be protected, but merely represents the selected embodiments of the present disclosure. Based on the embodiments of the present disclosure, all other embodiments obtained by those skilled in the art without creative efforts shall fall within the scope of protection of the present disclosure.

[0107] Unless otherwise defined, technical or scientific terms used in this disclosure shall have the ordinary meanings as understood by those of ordinary skill in the field to which this disclosure belongs. The terms "first", "second" and similar terms used in this disclosure do not denote any order, quantity or importance, but are only used to distinguish different components. Similarly, terms such as "a", "an" or "the" do not denote a limitation of quantity, but mean that there is at least one. Terms such as "comprising" or "including" mean that the elements or items appearing before this term cover the elements or items listed after this term and their equivalents, without excluding other elements or items. Terms such as "connected" or "coupled" are not limited to physical or mechanical connections, but may include electrical connections, whether direct or indirect. Terms such as "upper", "lower", "left" and "right" are only used to represent relative positional relationships. When the absolute position of the object being described changes, the relative positional relationship may also change accordingly.

[0108] As used in this disclosure, "a plurality of" or "several" means two or more. "And / or" describes the relationship between associated objects and indicates that there can be three relationships. For example, A and / or B can mean: A exists alone, A and B exist simultaneously, and B exists alone. The character " / " generally indicates that the objects before and after are in an "or" relationship.

[0109] In the related art, due to the limitations of its manufacturing process, a traditional liquid crystal display (LCD) cannot achieve a borderless breakthrough. In addition, due to the limitations of its manufacturing process, a traditional LCD splicing module cannot achieve a zero-seam breakthrough. Its narrowest seam is 0.8 mm and can still be visually perceived by users. Currently, the main design solutions for seamless splicing products include, for example, using a light guide plate 02 to cover the non-display area BB of the display module 01. The disadvantage is that, as Figure 1 shown, the light guide plate 02 is directly lapped on the front frame surface of the display module 01 and protrudes from the display module 01 in a direction away from the front frame. Although it can eliminate the seam in the front view, it cannot eliminate the seam in a large viewing angle. The large viewing angle can be understood as the angle between the line of sight of the human eye and the normal line perpendicular to the display module 01. The seam in the large viewing angle is, for example, the drop position formed by the side edge of the light guide plate 02 and the junction between the light guide plate 02 and the display module 01. In addition, the traditional fixing method of the light guide plate 02 and the display module 01 is bonding, and this fixing effect is weak. The light guide plate 02 is prone to weakening the viscosity when it generates heat during long-term operation, resulting in edge warping and affecting the display effect. In addition, the structure of the light-emitting side of the traditional light guide plate 02, the selection of light-emitting devices, and the design of other components affect the display resolution in the seam area, with a relatively low display resolution and poor seam elimination effects in the front view and large viewing angles. In addition, for a single display screen, borderless and full-screen displays have not been achieved.

[0110] In view of this, embodiments of the present disclosure provide a display device 100, which substantially eliminates one or more of the problems caused by the limitations and defects of the related art.

[0111] Specifically, as Figure 2 and Figure 3 shown, the display device 100 in the embodiments of the present disclosure includes a display module 1 and a light board 2. Among them, the display module 1 includes a display panel 11 and a cover plate 12 disposed on the light-emitting side of the display panel 11; the cover plate 12 includes a first surface S1 close to the light-emitting side, and a second surface S2 connected to the first surface S1 and surrounding the periphery of the cover plate 12; the light board 2 is disposed on at least two sides surrounding the cover plate 12 and is in contact with the second surface S2 of the cover plate 12; the third surface S3 of the light board 2 located on the light-emitting side is flush with the first surface S1. During the operation of the display device 100, the sub-pictures displayed by the light board 2 and the sub-pictures displayed by the display module 1 are connected into an integrated display picture.

[0112] Optionally, the display panel 11 is an LCD panel. The display panel 11 has a display area AA, and the cover plate 12 can cover the display area AA to protect the LCD panel. As Figure 4 shown, the second surface S2 of the cover plate 12 is in direct contact with the side surface of the light board 2, and the first surface S1 of the cover plate 12 is flush with the third surface S3 of the light board 2; in the embodiments of the present disclosure, by adding the cover plate 12 on the LCD panel, the cover plate 12 is used to make up for the step difference between the light board 2 and the display panel 11. Further, the light emitted by the display panel 11 is projected onto the first surface S1 through the entire thickness of the cover plate 12. When observing from a large viewing angle, the black edge of the light board 2 close to the display panel 11 is covered by the light projected by the cover plate 12, such as Figure 4 the light A' closest to the light board 2 in

[0113] thereby eliminating the influence of the large viewing angle black edge.

[0114] Optionally, as Figure 2 shown, the cover plate 12 includes four sides surrounding its periphery, which are respectively denoted as the first side s1, the second side s2, the third side s3, and the fourth side s4, where the first side s1 and the second side s2 are oppositely arranged along its width direction, and the third side s3 and the fourth side s4 are oppositely arranged along its length direction. The light board 2 is disposed on the four sides surrounding the cover plate 12, and a display module 1 with a borderless and full-screen display can be realized. When applying the display device 100 to a tiled display device 200, any side can be used as the splicing side S0, so as to achieve seamless splicing and arbitrary size splicing.

[0115] Optionally, as Figure 5 shown, the lamp board 2 is disposed on two adjacent sides surrounding the cover plate 12. For example, on the first side s1 and the third side s31 in FIG. (a); on the first side s1 and the fourth side s4 in FIG. (b); on the second side s2 and the third side s3 in FIG. (c); on the second side s2 and the fourth side s4 in FIG. (d). Optionally, as Figure 6 shown, the lamp board 2 is disposed on three successively adjacent sides surrounding the cover plate 12. For example, on the third side s3, the second side s2 and the fourth side s4 in FIG. (a); on the third side s3, the first side s1 and the fourth side s4 in FIG. (b). When the display device 100 is applied to the tiled display device 200, the side where the lamp board 2 is located is used as the splicing side S0, so as to achieve seamless splicing and splicing of any size.

[0116] The display device 100 provided by the embodiments of the present disclosure can not only implement the display module 1 with borderless and full-screen display, but also be used for tiled display to achieve seamless splicing and splicing of any size. Compared with the traditional display device 100, the optimal picture quality at the seam position is achieved, and the problems of picture distortion at the seam position of the lamp board 2 and large-angle black edges are eliminated.

[0117] In some embodiments, as Figure 2 shown, the lamp board 2 includes a plurality of lamp boards 2, and the two ends of the plurality of lamp boards 2 along their length directions are spliced in sequence and disposed around the cover plate 12.

[0118] Optionally, the specifications of each lamp board 2 are the same. The specifications here include but are not limited to the same size. In this embodiment, lamp boards 2 with the same specifications are adopted to realize the modular design of the lamp board 2, which is easy to disassemble and replaceable.

[0119] Exemplarily, as Figure 2 shown, on the first side s1 and the second side s2 of the cover plate 12, three successively spliced lamp boards 2 are respectively disposed, and on the third side s3 and the fourth side s4 of the cover plate 12, two spliced lamp boards 2 are respectively disposed; at the intersection position of adjacent sides, the lamp boards 2 located on the first side s1 and the second side s2 protrude beyond the boundaries of the third side s3 and the fourth side s4 and abut against the lamp boards 2 located on the third side s3 and the fourth side s4 (seamless splicing).

[0120] In some embodiments, as Figure 8a and Figure 8d shown, or as Figure 8b 、 Figure 8c and Figure 8dAs shown in the figure, the surface of the lamp board 2 facing away from the light-emitting side has a clearance area CC and a component setting area DD. The lamp board 2 includes a bottom board 21, a light-emitting device 22 disposed on the bottom board 21 near the light-emitting side, and a first fixing member 23 and a driving chip 24 disposed on the side of the bottom board 21 away from the light-emitting device 22; the driving chip 24 is used to control the light-emitting device 22 to emit light. Optionally, the base material of the bottom board 21 may be polyimide or polyester film. The first fixing member 23 and the driving chip 24 are located in the component setting area DD; the clearance area CC is used to overlap the front frame 14 of the display module 1.

[0121] It should be noted that the light-emitting device 22 involved in the embodiments of the present disclosure may include, but is not limited to, micro light-emitting diodes (Micro LED), micro-organic light-emitting diodes (Micro OLED), sub-millimeter wave light-emitting diodes (Mini LED), organic light-emitting diodes (OLED), quantum dot light-emitting diodes (QLED), or the like. Optionally, the light-emitting device 22 is an MLED device, such as Micro LED or Mini LED.

[0122] In some embodiments, as Figure 7 shown, the display device 100 further includes a lamp board bracket 3 disposed on the backlight side of the lamp board 2. The lamp board bracket 3 is used to fix the lamp board 2. As Figure 11d shown, the display module 1 further includes a backplane 13 disposed on the side of the display panel 11 facing away from the light-emitting side.

[0123] As Figure 7 、 Figure 9a 、 Figure 9b 、 Figure 9e and Figure 11d shown, the lamp board bracket 3 is a ring-shaped integral structure, nested around the backplane 13, and detachably connected to the backplane 13.

[0124] Or, as Figure 10 shown, there are multiple lamp board brackets 3, and the multiple lamp board brackets 3 are connected end to end and surround the backplane 13, and are detachably connected to the backplane 13.

[0125] The lamp board bracket 3 is disposed opposite to the lamp board 2. If the lamp board 2 is disposed on the four sides surrounding the cover plate 12, the lamp board bracket 3 also surrounds the backplane 13. If the lamp board 2 is disposed on two adjacent sides or three adjacent sides in sequence surrounding the cover plate 12, the lamp board bracket 3 also surrounds the corresponding two adjacent sides or the corresponding three adjacent sides in sequence of the backplane 13.

[0126] As shown Figure 11a or Figure 11b shown, the lamp board bracket 3 includes a first support plate 31 and second support plates 32 that are connected to and oppositely arranged with respect to the first support plate 31; wherein, the extending directions of the first support plate 31 and the two second support plates 32 are the same. Optionally, the first support plate 31 and the second support plates 32. The first support plate 31 and the second support plates 32 can be injection molded from a plastic material.

[0127] As shown Figure 11a or Figure 11d shown, the first support plate 31 and the two second support plates 32 form a receiving cavity 30. In the assembled state of the lamp board 2 and the lamp board bracket 3, both the driving chip 24 and the first fixing member 23 are located in the receiving cavity 30, and the first fixing member 23 is detachably connected to the lamp board bracket 3. The height of the receiving cavity 30 is greater than the height of the driving chip 24 to prevent the driving chip 24 from contacting the first support plate 31 and prevent the driving chip 24 from being damaged by extrusion during assembly.

[0128] As shown Figures 8a - 8c shown, the first fixing member 23 is located at both end portions in the extending direction of the bottom plate 21; the driving chip 24 is located on the side of the first fixing member 23 close to the center of the bottom plate 21, and there is a certain distance between adjacent driving chips 24.

[0129] The assembling method of the lamp board 2 and the lamp board bracket 3 can adopt magnetic attraction fixation or screw locking.

[0130] In a possible implementation manner, magnetic attraction fixation is adopted. As shown Figure 8a and Figure 11a shown, the first fixing member 23 is a magnetic member; the lamp board bracket 3 includes a first magnet 33 fixed in the receiving cavity 30; the magnetic member is disposed opposite to the magnet. When the lamp board 2 and the lamp board bracket 3 are fixed in alignment, the first magnet 33 magnetically attracts and fixes the magnetic member. The first fixing member 23 can be a fitting fixed on the bottom plate 21. For example, the first fixing member 23 is welded to the bottom plate 21. The magnetic member is, for example, a magnetic metal, and the present disclosure does not limit the material of the magnetic member. The first magnet 33 can be a fitting fixed on the lamp board bracket 3. For example, the first magnet 33 is bonded to the lamp board bracket 3, and specifically, it can be bonded to the first support plate 31 or the second support plate 32. Regardless of which of the above support plates the first magnet 33 is bonded to, the position of the first magnet 33 is opposite to the position of the magnetic member. Specifically, the first magnet 33 is bonded to the side of the first support portion close to the receiving cavity 30. The diameter of the first magnet 33 is the width of the receiving cavity 30 to adsorb the first fixing member 23 with the maximum magnetic attraction.

[0131] In another possible implementation manner, screw locking is adopted. As shown Figure 8b and Figure 11bAs shown, the display device 100 further includes a first connecting member 41; the first fixing member 23 is a rivet post; the first support plate 31 includes a first through hole 311; the rivet post is engaged with the first through hole 311, and the first connecting member 41 passes through the first through hole 311 and is detachably connected to the rivet post. The end of the rivet post is located within the first through hole 311 and is engaged with the first through hole 311. The diameter of the rivet post is slightly smaller than the diameter of the first through hole 311, and the rivet post has an internal threaded hole; the first connecting member 41 is a screw, and the first connecting member 41 passes through the first through hole 311 and is screwed into the internal threaded hole of the rivet post to be relatively fixed to the rivet post, thereby realizing the assembly and fixation of the lamp board 2 and the lamp board bracket 3.

[0132] In some embodiments, as Figure 8b and Figure 8c shown, the lamp board 2 further includes a second fixing member 26 provided on a side of the bottom plate 21 facing away from the light emitting device 22. As Figure 11c shown, the second fixing member 26 includes a fixing portion 261 in contact with the bottom plate 21 and a positioning portion 262 located on a side of the fixing portion 261 away from the bottom plate 21; as Figure 9c shown, the first support plate 31 includes a second through hole 312; as Figure 11c shown, the positioning portion 262 is engaged with the second through hole 312 for positioning the lamp board 2.

[0133] The end of the fixing portion 261 away from the bottom plate 21 abuts against the first support plate 31; the height of the positioning portion 262 is slightly greater than or equal to the thickness of the first support plate 31, that is, the height of the positioning portion 262 is slightly greater than or equal to the hole depth of the second through hole 312, improving the positioning stability.

[0134] The second fixing member 26 may be a fitting fixed to the bottom plate 21, and may be welded or bonded to the bottom plate 21 according to the material of the second fixing member 26, which is not limited in the embodiments of the present disclosure.

[0135] In some embodiments, the assembly manner of the lamp board bracket 3 and the back plate 13 may adopt a screw locking type or a magnetic attraction fixing type.

[0136] In a possible implementation manner, adopting the screw locking type, as Figure 11d shown, the display device 100 further includes a second connecting member 42; the second support plate 32 includes a third through hole 321 (as Figure 9cAs shown, the second connecting member 42 passes through the third through hole 321 and is detachably connected to the back plate 13. For example, a threaded hole corresponding to the third through hole 321 is provided on the side wall of the back plate 13, and the second connecting member 42 is a screw. The screw passes through the third through hole 321 and is screwed into the threaded hole on the back plate 13 to be relatively fixed to the back plate 13, thereby realizing the assembly and fixation of the lamp board bracket 3 and the back plate 13. Another example is that the display module 1 further includes a front frame 14. The side wall (the second sub - part 142) of the front frame 14 is disposed on the side of the side wall of the back plate 13 closer to the lamp board bracket 3. A threaded hole corresponding to the third through hole 321 is provided on the side wall of the back plate 13, and a fourth through hole (not shown in the figure) corresponding to the third through hole 321 is provided on the side wall (the second sub - part 142) of the front frame 14. The second connecting member 42 is a screw. The screw sequentially passes through the third through hole 321 and the fourth through hole and is screwed into the threaded hole on the back plate 13 to be relatively fixed to the back plate 13, thereby realizing the assembly and fixation of the lamp board bracket 3 and the back plate 13.

[0137] Another example is that a fifth through hole (not shown in the figure) corresponding to the third through hole 321 is provided on the side wall of the back plate 13. The second connecting member 42 is a screw. The screw sequentially passes through the third through hole 321 and the fifth through hole, and a third connecting member (nut) is used to lock the screw passing through the fourth through hole.

[0138] In a possible implementation manner, magnetic attraction fixation is adopted. As Figure 11e shown, the lamp board bracket 3 further includes a second magnet 34 disposed on the side of the second support plate 32 away from the accommodation cavity 30. The second magnet 34 is magnetically attracted and fixed to the back plate 13. Or, the display device 100 further includes a second magnet 34, and the second magnet 34 is bonded to the side of the second support plate 32 away from the accommodation cavity 30. The second magnet 34 is attracted to the back plate 13, thereby realizing the detachable connection between the lamp board bracket 3 and the back plate 13.

[0139] In some embodiments, as Figure 8b and Figure 8c shown, the lamp board 2 further includes a lamp board connector 25 disposed on the side of the bottom plate 21 away from the light - emitting device 22. The lamp board connector 25 is located in the component setting area DD and is disposed at the central position of the component setting area DD. As Figure 7 and Figure 12 shown, the display device 100 further includes a lamp board driving board 16 and a lamp board control line 17 fixed to the side of the back plate 13 away from the display panel 11. Optionally, the display module 1 further includes a rear case 15, and the rear case 15 is on the side of the back plate 13 away from the display panel 11. The lamp board driving board 16 and the lamp board control line 17 can be fixed not only on the back plate 13 but also on the side of the rear case 15 close to the back plate 13.

[0140] As Figure 9c 、 Figure 9d 、 Figure 9e andFigure 11f As shown, the display device 100 further includes an adapter assembly 5; the adapter assembly 5 includes an adapter board 51, a first connector 52, and a second connector 53, where the first connector 52 and the second connector 53 are respectively located on two opposite sides of the adapter board 51 along the thickness direction. The adapter board 51 is located in the accommodation cavity 30 and is detachably connected to the first support plate 31; the first connector 52 is plugged into the lamp board connector 25, and the lamp board connector 25 is electrically connected to the driving chip 24; the first support plate 31 has a hollow portion 313, the second connector 53 passes through the hollow portion 313 and is electrically connected to the lamp board driving board 16 through the lamp board control line 17, so as to realize the electrical connection between the lamp board driving board 16 and the driving chip 24. The lamp board driving board 16 is used to control the driving chip 24 to drive the light-emitting device 22 to emit light. Both ends of the lamp board control line 17 have terminals, which are respectively plugged into the second connector 53 and the lamp board driving board 16.

[0141] As Figures 9c - 9e shown, the adapter board 51 includes a sixth through hole 511 penetrating along its thickness direction, and the lamp board bracket 3 includes a third fixing member 35 provided on one side of the first support plate 31 close to the accommodation cavity 30, and the third fixing member 35 is correspondingly arranged with the sixth through hole 511. Exemplarily, the third fixing member 35 is a rivet post. When the adapter board 51 is assembled, the rivet post cooperates with the sixth through hole 511, and a fourth connecting member (not shown in the figure) passes through the sixth through hole 511 and is screwed into the internal threaded hole of the rivet post to achieve detachable connection. The fourth connecting member is a screw.

[0142] In some embodiments, as Figure 8a or Figure 8b shown, the lamp board 2 includes a bottom plate 21, a light-emitting device 22 provided on the bottom plate 21 close to the light-emitting side, and a first fixing member 23, a driving chip 24, and a lamp board connector 25 provided on the side of the bottom plate 21 facing away from the light-emitting device 22; the driving chip 24 is used to control the light-emitting device 22 to emit light; as Figure 11a or Figure 11b shown, the lamp board bracket 3 includes a first support plate 31 and a second support plate 32 connected to and oppositely arranged with the first support plate 31; the first support plate 31 and the two second support plates 32 form an accommodation cavity 30, the driving chip 24 and the first fixing member 23 are both located in the accommodation cavity 30, and the first fixing member 23 is detachably connected to the lamp board bracket 3. The display module 1 further includes a back plate 13 provided on the side of the display panel 11 facing away from the light-emitting side; the display device 100 further includes a lamp board driving board 16 and a lamp board control line 17 fixed on the side of the back plate 13 away from the display panel 11. Optionally, as Figure 7 or Figure 12As shown, the display module 1 further includes a rear housing 15, which is located on the side of the back plate 13 away from the display panel 11. In addition to being fixed to the back plate 13, the light board driving board 16 and the light board control line 17 can also be fixed to the side of the rear housing 15 close to the back plate 13.

[0143] Compared with Figure 11f The structure shown in FIG. 1 is not provided with the adapter component 5 in this embodiment. Specifically, as Figure 9c As shown, the first support plate 31 has a hollow portion 313; Figure 11g As shown, the light board connector 25 is electrically connected to the light board driving board 16 via the light board control line 17 passing through the hollow portion 313. This embodiment saves the adapter component 5, thereby saving costs.

[0144] In some embodiments, as Figure 3 As shown, the display module 1 has a display area AA and a non-display area BB surrounding the display area AA; the cover plate 12 is located in the display area AA, the display panel 11 is at least located in the display area AA, and the orthographic projection of the display panel 11 on the horizontal reference plane covers the orthographic projection of the cover plate 12 on the horizontal reference plane. The present disclosure sets the size of the cover plate 12 to be smaller than or equal to the size of the display panel 11, so that the light board 2 can completely block the non-display area BB portion of the display module 1, thereby providing a picture display for the non-display area BB portion.

[0145] The cover plate 12 is located in the display area AA, the display panel 11 extends from the display area AA to the non-display area BB, and the light board 2 extends from the non-display area BB to the display area AA.

[0146] like Figure 11a 、 Figure 11b or Figure 11c As shown, the display module 1 also includes an optical assembly 18 disposed on the side of the display panel 11 away from the cover plate 12. The optical assembly 18 extends from the display area AA to the non-display area BB. The display panel 11 includes a color filter substrate 111 and a display substrate 112, which are sequentially arranged away from the cover plate. The optical assembly 18 includes a prism 181, a diffuser 182, and a light guide plate 183, which are sequentially arranged away from the cover plate 12. The display panel 11 and the cover plate 12 are bonded together by an adhesive layer 60.

[0147] Since the display device 100 provided by the embodiments of the present disclosure adopts the MLED light board 2 + LCD panel solution to achieve full-screen display. The MLED light board 2 completely compensates for the non-display area BB of the display module 1, so that the width of the border of the display module 1 is not limited by the narrow border. In the traditional display module 1 limited by the narrow border, the edge of the optical component 18 terminates at the display area AA to avoid extending into the non-display area BB and increasing the border width. Therefore, in this embodiment, according to the optical design scheme of the conventional module, the optical component 18 extends from the display area AA to the non-display area BB, that is, the positive projection of the optical component 18 on the horizontal reference plane covers the positive projection of the part of the display panel 11 located in the display area AA on the horizontal reference plane, thereby improving the edge image quality problems such as the bright edge of the film material and the dark frame of the diffuser plate (DP) in the traditional splicing screen module. Among them, the DP dark frame refers to the phenomenon that the brightness at the diffuser plate is darker than that in the central display area AA.

[0148] In some embodiments, such as Figure 11a , Figure 11b or Figure 11c shown, the display module 1 further includes a front frame 14 and a middle frame 19; the front frame 14 includes a first sub-part 141 disposed on one side of the middle frame 19 close to the light board 2, and a second sub-part 142 connected to one end of the first sub-part 141 and extending away from the light board 2 and disposed on the side of the middle frame 19 away from the display area AA; the middle frame 19 includes a third sub-part 191 disposed opposite to the second sub-part 142, a fourth sub-part 192 connected to the middle area of the third sub-part 191 and extending toward the display area AA, the fourth sub-part 192 is parallel to the first sub-part 141, and a fifth sub-part 193 connected to the fourth sub-part 192 and parallel to the third sub-part 191; a groove is formed between the fifth sub-part 193 and the third sub-part 191, and the side wall of the back plate 13 is snapped into the groove; the light board 2 located in the clearance area CC is lapped on the side of the first sub-part 141 away from the fourth sub-part 192; the display panel 11 is fixed to the side of the first sub-part 141 close to the fourth sub-part 192 through a first adhesive layer 61, and the display panel 11 is fixed to the side of the fourth sub-part 192 close to the first sub-part 141 through a second adhesive layer 62.

[0149] Optionally, there is a certain gap between the positive projections of the contact surfaces of the first sub-part 141 and the cover plate 12 with the bottom plate 21 on a reference plane to avoid their coincidence and the appearance of the bright edge of the film material and the DP dark frame phenomenon. The position where the first sub-part 141 is located is the position of the non-display area BB of the display module 1. There is a certain gap between the first sub-part 141 and the cover plate 12, and the positive projection of the light board 2 on the horizontal reference plane completely covers the first sub-part 141 to avoid the appearance of the bright edge of the film material and the DP dark frame phenomenon.

[0150] Optionally, the materials of the first adhesive layer 61 and the second adhesive layer 62 are glue materials.

[0151] Optionally, the display module 1 also controls the reflector 1011 on the side of the color control production optical component 18 close to the backplane 13. The reflector 1101 extends from the display area AA to the non-display area BB. For example, the edge of the reflector 1101 is aligned with the optical component 18.

[0152] In some embodiments, as Figure 12 shown, the display device 100 further includes a power supply board 1102. The power supply board 1102 is used to supply power to the lamp board driving board 16 and the display panel 11.

[0153] In some embodiments, as Figure 12 shown, the display device 100 further includes a module constant current board 1103 and a timing circuit control board 1104 disposed on the side of the rear case 15 close to the display module 1. Among them, the module constant current board 1103 is used to ensure that each light emitting device 22 in the lamp board 2 operates under a constant current to improve the light emitting efficiency and the integrity of the module; the timing circuit control board 1104 is used to perform timing control on the display panel 11.

[0154] In some embodiments, as Figure 12 shown, for the display device 100 with a full screen display, a plurality of lamp board driving boards 16 are provided, for example, two. Control signals are transmitted between the plurality of lamp board driving boards 16 through RS232 signal lines (not shown in the figure).

[0155] The display device 100 provided by the embodiments of the present disclosure can be, for example, any product with a display function such as a mobile phone, a tablet computer, a television, a monitor, a notebook computer, a digital photo frame, a vehicle-mounted device, etc. Other essential components of the display device 100 should be understood by those of ordinary skill in the art and will not be elaborated herein, nor should they be construed as a limitation to the present disclosure.

[0156] The above is the entire description of the borderless and full screen display device 10 provided by the embodiments of the present disclosure.

[0157] In addition, the embodiments of the present disclosure further provide a tiled display device 200, which includes a plurality of display devices 100 that are tiled with each other and are any one of the above embodiments and their combinations.

[0158] As Figure 13 and Figure 14 shown, the plurality of tiled display devices 100 include M×N tiled display devices 100, where both M and N are positive integers greater than or equal to 2; the embodiments of the present disclosure are described by taking M = 2 and N = 2 as an example.

[0159] As Figure 13As shown, the display device 100 adopts the example in which the above-mentioned light panel 2 is arranged on four sides surrounding the cover plate 12. Specifically, for 2×2 display devices 100 spliced with each other, any side can be used as the splicing side S0, so as to achieve seamless splicing and splicing of any size; at the same time, borderless and full-screen large-screen splicing display is realized.

[0160] As Figure 14 shown, the display device 100 adopts the example in which the above-mentioned light panel 2 is arranged on two adjacent sides surrounding the cover plate 12. Specifically, for 2×2 display devices 100 spliced with each other, the side where the light panel 2 is located can be used as the splicing side S0, so as to achieve seamless splicing and large-screen splicing display of any size.

[0161] In addition, the embodiment of the present disclosure also provides another splicing display device 200. As Figure 15 、 Figure 16 and Figure 17 shown, the difference between it and the above-mentioned splicing display device 200 is that in this embodiment, an independent light panel system 300 is adopted to participate in the splicing display module 1.

[0162] As Figure 15 and Figure 17 shown, the splicing display device 200 includes a plurality of display modules 1 and a light panel 2 spliced with each other; the display module 1 has a splicing side S0; the display module 1 includes a display panel 11 and a cover plate 12 arranged on the light-emitting side of the display panel 11; the cover plate 12 includes a first surface S1 close to the light-emitting side, and a second surface S2 connected to the first surface S1 and surrounding the periphery of the cover plate 12; the light panel 2 is arranged on at least two sides surrounding the cover plate 12, and at least two sides of the cover plate 12 include the splicing side S0; the light panel 2 is in contact with the second surface S2 of the cover plate 12, and the third surface S3 of the light panel 2 located on the light-emitting side is flush with the first surface S1.

[0163] It should be noted that the principle of solving problems by the splicing display device 200 provided in the embodiment of the present disclosure is similar to that of the above-mentioned display device 100 in the embodiment of the present disclosure. Therefore, for the structure of the display module 1, the structure of the light panel 2, and the fixing method and connection relationship of the light panel 2, reference can be made to the detailed description of the embodiments of the display module 1 and the light panel 2 in the above-mentioned display device 100, and repeated parts will not be described again.

[0164] As Figure 15 shown, a plurality of spliced display modules 1 include M×N spliced display modules 1, where M and N are both positive integers greater than or equal to 2; in the embodiment of the present disclosure, M is taken as 2 and N is taken as 2 as an example for illustration. For 2×2 spliced display modules 1, any side can be used as the splicing side S0, and the light panel 2 is used to cover the splicing side S0, so as to achieve seamless splicing and large-screen splicing display of any size.

[0165] As shown Figure 18 in the figure, for the 2×2 display modules 1 spliced with each other, any side can be used as the splicing side S0, and the light board 2 is used to cover the non-display area BB of the splicing side S0 and other non-splicing sides S0' of the display module 1, so as to achieve seamless splicing and splicing of any size; at the same time, borderless and full-screen large-screen splicing display is realized.

[0166] Or, as shown Figure 19a in the figure, the light board 2 is used to cover the non-display area BB of the splicing side S0 and the upper and lower non-splicing sides S0' of the display module 1. Or, as shown Figure 19b in the figure, the light board 2 is used to cover the non-display area BB of the splicing side S0 and the left and right non-splicing sides S0' of the display module 1.

[0167] The light board 2 between two adjacent display modules 1 simultaneously covers a part of the non-display area BB between the two display modules 1.

[0168] In some embodiments, there are multiple light boards 2. The multiple light boards 2 are spliced in sequence at both ends along their length directions and are arranged between adjacent cover plates 12. As shown Figure 16 and Figure 20 in the figure, the light board bracket 3 is an integral structure, which is correspondingly arranged with the multiple spliced light boards 2 and is detachably connected to at least one adjacent display module 1. Exemplarily, the light board bracket 3 is an integral structure, and the multiple light boards 2 are sequentially installed on the light board bracket 3 and spliced with each other. The spliced light board 2 and the light board bracket 3 form an integrated light board 2 assembly, and the light board 2 assembly is detachably connected to the adjacent display module 1. Or, the integrated light board bracket 3 is first detachably installed on the display module 1, and then the multiple light boards 2 are sequentially installed on the light board bracket 3.

[0169] In this embodiment, an independent light board system 300 is adopted, which is only installed at the seam position of the display module 1 to compensate for the non-display area at the seam position, and can reduce the number of light boards 2 and the number of light board brackets 3. Optionally, based on the design of the mass-produced splicing module in this solution, only the light board bracket 3 needs to be added outside the display module, which has no impact on the whole machine parts of the currently mass-produced splicing module and can be directly used based on the existing mass-produced whole machine solution.

[0170] In some embodiments, there are multiple light boards 2. The multiple light boards 2 are spliced in sequence at both ends along their length directions and are arranged between adjacent cover plates 12. As shown Figure 21 and Figure 22As shown, there are multiple lamp board brackets 3. The lamp board brackets 3 and the lamp boards 2 are arranged in one-to-one correspondence, and each lamp board bracket 3 is detachably connected to at least one adjacent display module 1. Exemplarily, the lamp board brackets 3 and the lamp boards 2 are arranged in one-to-one correspondence. First, the lamp board 2 is detachably installed on the lamp board bracket 3. Then, the lamp board bracket 3 is detachably installed on the adjacent display module 1. Or, the lamp board bracket 3 is detachably installed on the adjacent display module 1. Then, the lamp board 2 is detachably installed on the lamp board bracket 3.

[0171] In some embodiments, as Figure 18 shown, there are multiple lamp boards 2. The multiple lamp boards 2 are sequentially spliced at both ends along their length directions and are arranged around the surrounding cover plate 12. The lamp board 2 located on the splicing side S0 covers the non-display area BB where the splicing side S0 of the mutually spliced display module 1 is located. The lamp board 2 located on the non-splicing side S0' covers the non-display area BB where the non-splicing side S0' is located.

[0172] Further, the splicing display device 200 further includes a lamp board bracket 3 provided on the backlight side of the lamp board 2. The lamp board bracket 3 is an integral structure, nested around the display module 1, and is detachably connected to at least one adjacent display module 1. Or, there are multiple lamp board brackets 3. The multiple lamp board brackets 3 are connected end to end and surround the display module 1, and are detachably connected to at least one adjacent display module 1. The descriptions of the integral and split types of the lamp board bracket 3 here can be referred to the descriptions of the integral and split types of the lamp board bracket 3 as Figure 20 and Figure 21 above; and, for the description of the connection method of the lamp board bracket 3, reference can be made to the description of the embodiment of the display device 100 above, and the repeated parts will not be elaborated.

[0173] Regarding the specific structure of the lamp board bracket 3 here, reference can be made to the structure of the lamp board brackets 3 in the above display device 100, as [[ID= shown, and the repeated parts will not be elaborated.

[0174] Further, the lamp board 2 includes a bottom plate 21, a light-emitting device 22 provided on the bottom plate 21 near the light-emitting side, and a first fixing member 23 and a driving chip 24 provided on the side of the bottom plate 21 facing away from the light-emitting device 22. The driving chip 24 is used to control the light-emitting device 22 to emit light. The lamp board bracket 3 includes a first support plate 31 and a second support plate 32 connected to and oppositely arranged with the first support plate 31. An accommodation cavity 30 is formed between the first support plate 31 and the two second support plates 32. The driving chip 24 and the first fixing member 23 are both located in the accommodation cavity 30, and the first fixing member 23 is detachably connected to the first support plate 31.

[0175] Regarding the specific structure of the lamp board 2 here, reference can be made to the structure of the lamp board 2 in the above display device 100, as​ As shown, the repeated parts will not be described again.

[0176] In a possible implementation manner, the first fixing member 23 is a magnetic member; the lamp board bracket 3 includes a first magnet 33 fixed in the accommodation cavity 30; the first magnet 33 magnetically attracts and fixes the magnetic member.

[0177] For the detailed description of the magnetic attraction and fixing manner between the first fixing member 23 and the lamp board bracket 3 here, reference can be made to the specific embodiments of the magnetic attraction and fixing manner between the first fixing member 23 and the lamp board bracket 3 in the above display device 100, such as ​ As shown, the repeated parts will not be described again.

[0178] In another possible implementation manner, the splicing display device 200 further includes a first connecting member 41; the first fixing member 23 is a riveting post; the first support plate 31 includes a first through hole 311; the riveting post cooperates with the first through hole 311, and the first connecting member 41 passes through the first through hole 311 and is detachably connected to the riveting post.

[0179] For the detailed description of the screw locking manner between the first fixing member 23 and the lamp board bracket 3 here, reference can be made to the specific embodiments of the screw locking manner between the first fixing member 23 and the lamp board bracket 3 in the above display device 100, such as ​ As shown, the repeated parts will not be described again.

[0180] Furthermore, the lamp board 2 further includes a second fixing member 26 disposed on the side of the bottom plate 21 away from the light emitting device 22; the second fixing member 26 includes a fixing portion 261 in contact with the bottom plate 2i and a positioning portion 262 located on the side of the fixing portion 261 away from the bottom plate 21; the first support plate 31 includes a second through hole 312; the positioning portion 262 cooperates with the second through hole 312 to position the bottom plate 21.

[0181] For the detailed description of the positioning manner of the second fixing member 26 here, reference can be made to the specific embodiments of the positioning manner of the second fixing member 26 in the above display device 100, such as ​ As shown, the repeated parts will not be described again.

[0182] In some embodiments, the display module 1 further includes a back panel 13 disposed on the side of the display panel 11 away from the light emitting side. The light panel bracket 3 is detachably connected to the back panel 13. The detachable connection method includes but is not limited to a magnetic fixing type or a screw locking type. In one possible embodiment, a screw locking type is adopted. Specifically, the splicing display device 200 further includes a second connecting member 42; the second support plate 32 includes a third through hole 321, and the second connecting member 42 passes through the third through hole 321 and is detachably connected to the back panel 13. In one possible embodiment, a magnetic fixing type is adopted. Specifically, the light panel bracket 3 further includes a second magnet 34 disposed on the side of the second support plate 32 away from the accommodating cavity 30, and the second magnet 34 is magnetically fixed to the back panel 13.

[0183] Here, for a detailed description of the screw locking method of the light panel bracket 3 and the back panel 13, please refer to the specific embodiment of the screw locking method of the light panel bracket 3 and the back panel 13 in the above-mentioned display device 100, such as ​ For a detailed description of the magnetic fixation of the light panel bracket 3 and the back panel 13, please refer to the specific embodiment of the magnetic fixation of the light panel bracket 3 and the back panel 13 in the above-mentioned display device 100, such as ​ The repeated parts are not repeated here.

[0184] In some embodiments, the display module 1 also includes a back panel 13 arranged on the light-emitting side of the display panel 11; the light board 2 also includes a light board connector 25 arranged on the side of the base plate 21 away from the light-emitting device 22; the spliced display device 200 also includes an adapter assembly 5, a light board driving board 16 fixed on the side of the back panel 13 away from the display panel 11, and a light board control line 17; the adapter assembly 5 includes an adapter plate 51, a first connector 52 and a second connector 53, wherein the first connector 52 and the second connector 53 are respectively located on two sides of the adapter plate 51 opposite to each other in the thickness direction; the adapter plate 51 is located in the accommodating cavity 30 and is detachably connected to the first support plate 31; the first connector 52 is plugged into the light board connector 25; the first support plate 31 has a hollow portion 313, the second connector 53 passes through the hollow portion 313, and is electrically connected to the light board driving board 16 through the light board control line 17.

[0185] For a detailed description of the electrical connection relationship of the light board 2, please refer to the specific embodiment of the electrical connection relationship of the light board 2 in the above-mentioned display device 100, such as ​ and ​ shown.

[0186] like ​ As shown, the light board control line 17 and the light board driving board 16 in the light board system 300 are fixed on the back panel 13 of the display module 1. ​As shown, the lamp board driving board 16 is arranged inside the control box 7, and the control box 7 includes a box cover 71 and a box base 72; the display module 1 further includes a third magnet 8, and the third magnet 8 is fixed on the box base 72 and is used for magnetically attracting and fixing the control box 7 to the back surface of the back plate 13. The control box 7 further includes a power supply board 1102, which is used for supplying power to the lamp board driving board 16 and the display panel 11. The present disclosure integrates the power supply board 1102 and the lamp board driving board 16 inside the control box 7 to achieve a modular design, which can maximize the adaptation to the customer's entire machine and reduce the change of parts of the customer's entire machine. The control box 7 is magnetically attracted and fixed to the back plate 13 through the third magnet 8, which is convenient for disassembly.

[0187] In some embodiments, the light-emitting device 22 is any one of a micro light-emitting diode, a micro organic light-emitting diode, or a sub-millimeter wave light-emitting diode.

[0188] In some embodiments, the lamp board 2 includes a bottom plate 21, light-emitting devices 22 arranged on the bottom plate 21 near the light-emitting side, and a first fixing member 23, a driving chip 24, and a lamp board connector 25 arranged on the side of the bottom plate 21 facing away from the light-emitting devices 22; the driving chip 24 is used for controlling the light-emitting devices 22 to emit light; the lamp board bracket 3 includes a first support plate 31 and second support plates 32 that are connected to and oppositely arranged with the first support plate 31; an accommodation cavity 30 is formed between the first support plate 31 and the two second support plates 32, and both the driving chip 24 and the first fixing member 23 are located in the accommodation cavity 30, and the first fixing member 23 is detachably connected to the first support plate 31; the tiled display device 200 further includes a lamp board driving board 16 and a lamp board control line 17 arranged on the side of the back plate 13 away from the display panel 11; the first support plate 31 has a hollow portion 313, and the lamp board connector 25 is electrically connected to the lamp board driving board 16 through the lamp board control line 17 passing through the hollow portion 313.

[0189] For the detailed description of the electrical connection relationship of the lamp board 2 here, reference can be made to the specific embodiments of the electrical connection relationship of the lamp board 2 in the above display device 100, such as ​ and ​ shown.

[0190] In some embodiments, the display module 1 has a display area AA and a non-display area BB surrounding the display area AA; the cover plate 12 is located in the display area AA, the display panel 11 extends from the display area AA to the non-display area BB, and the light board 2 extends from the non-display area BB to the display area AA; the display module 1 further includes an optical component 18 disposed on the side of the display panel 11 away from the cover plate 12; the optical component 18 extends from the display area AA to the non-display area BB. Further, the surface of the light board 2 facing away from the light-emitting side has a clearance area CC and a component setting area DD; a first fixing member 23, a driving chip 24, and a light board connector 25 are disposed in the component setting area DD; the display module 1 further includes a front frame 14 and a middle frame 19; the front frame 14 includes a first sub-part 141 disposed on the side of the middle frame 19 close to the light board 2, and a second sub-part 142 connected to one end of the first sub-part 141 and extending away from the light board 2 and disposed on the side of the middle frame 19 away from the display area AA; the middle frame 19 includes a third sub-part 191 disposed opposite to the second sub-part 142, a fourth sub-part 192 connected to the middle area of the third sub-part 191 and extending towards the display area AA, the fourth sub-part 192 being parallel to the first sub-part 141, and a fifth sub-part 193 connected to the fourth sub-part 192 and parallel to the third sub-part 191; a groove is formed between the fifth sub-part 193 and the third sub-part 191, and the side wall of the back plate 13 is snapped into the groove; the light board 2 located in the clearance area CC is lapped on the side of the first sub-part 141 away from the fourth sub-part 192; the display panel 11 is fixed to the side of the first sub-part 141 close to the fourth sub-part 192 through a first adhesive layer 61, and the display panel 11 is fixed to the side of the fourth sub-part 192 close to the first sub-part 141 through a second adhesive layer 62.

[0191] For the detailed description of the structures of the optical component 18, the front frame 14, and the middle frame 19 here, reference may be made to the specific embodiments of the optical component 18, the front frame 14, and the middle frame 19 in the above-mentioned display device 100, as ​ shown.

[0192] It can be understood that the above embodiments are merely exemplary embodiments adopted to illustrate the principles of the present disclosure. However, the present disclosure is not limited thereto. For those of ordinary skill in the art, various modifications and improvements can be made without departing from the spirit and essence of the present disclosure, and these modifications and improvements are also considered within the protection scope of the present disclosure.

Claims

1. A display device, characterized in that, include: Display module and light board; The display module includes a display panel and a cover plate arranged on the light-emitting side of the display panel; the cover plate includes a first surface close to the light-emitting side, and a second surface connected to the first surface and surrounding the cover plate; The light boards include multiple ones, and the multiple light boards are spliced in sequence at both ends along their length direction and arranged around the cover plate; the light boards are in contact with the second surface of the cover plate; the third surface of the light board on the light emitting side is flush with the first surface.

2. The display device according to claim 1, characterized in that The display device further includes a lamp panel bracket arranged on the backlight side of the lamp panel; the display module further includes a back panel arranged on the display panel away from the light emitting side; The light board bracket is an integrated structure, nested around the back panel, and detachably connected to the back panel; or, the light board bracket includes multiple, multiple light board brackets are connected end to end, and surround the back panel, and are detachably connected to the back panel.

3. The display device according to claim 2, wherein The light board includes a base plate, a light emitting device arranged on the base plate near the light emitting side, and a first fixing member and a driving chip arranged on the side of the base plate away from the light emitting device; the driving chip is used to control the light emitting device to emit light; The lamp board bracket includes a first support plate and a second support plate connected to and opposite to the first support plate; the first support plate and the two second support plates form a accommodating cavity, the driving chip and the first fixing member are both located in the accommodating cavity, and the first fixing member is detachably connected to the first support plate.

4. The display device according to claim 3, wherein The first fixing member is a magnetic member; the lamp panel bracket includes a first magnet fixed in the accommodating cavity; the first magnet magnetically fixes the magnetic member.

5. The display device according to claim 3, wherein The display device further includes a first connecting member; The first fixing member is a rivet column; the first supporting plate includes a first through hole; the rivet column cooperates with the first through hole, and the first connecting member passes through the first through hole and is detachably connected to the rivet column.

6. The display device according to claim 5, wherein The lamp board also includes a second fixing member arranged on the side of the base plate away from the light-emitting device; the second fixing member includes a fixing portion in contact with the base plate and a positioning portion located on the side of the fixing portion away from the base plate; the first support plate includes a second through hole; the positioning portion cooperates with the second through hole to position the light board.

7. The display device according to any one of claims 3 to 5, characterized in that The display device further includes a second connecting member; the second supporting plate includes a third through hole, the second connecting member passes through the third through hole and is detachably connected to the back plate; or, The light panel bracket further includes a second magnet disposed on a side of the second support plate away from the accommodating cavity, and the second magnet is magnetically fixed to the back plate.

8. The display device according to any one of claims 3 to 5, characterized in that, The light board further comprises a light board connector provided on a side of the bottom plate away from the light emitting device; the display device further comprises a switching assembly, a light board driving board fixed on a side of the back plate away from the display panel, and a light board control line; The adapter assembly includes an adapter plate, a first connector and a second connector, wherein the first connector and the second connector are respectively located on two sides of the adapter plate that are opposite to each other in the thickness direction; The adapter board is located in the accommodating cavity and is detachably connected to the first support plate; the first connector is plugged into the lamp board connector; the first support plate has a hollowed-out portion, and the second connector passes through the hollowed-out portion and is electrically connected to the lamp board driving board through the lamp board control line.

9. The display device according to any one of claims 3 to 5, characterized in that The light-emitting device is any one of a micro light-emitting diode, a micro organic light-emitting diode, or a sub-millimeter wave light-emitting diode.

10. The display device according to claim 1, characterized in that, The lamp board includes a bottom plate, light-emitting devices arranged on the bottom plate near the light-emitting side, and a first fixing member, a driving chip, and a lamp board connector arranged on the side of the bottom plate facing away from the light-emitting devices; the driving chip is used to control the light-emitting devices to emit light. The lamp board bracket includes a first support plate and a second support plate connected to and oppositely arranged with the first support plate; the first support plate and the two second support plates form an accommodating cavity, the driving chip and the first fixing member are both located in the accommodating cavity, and the first fixing member is detachably connected to the first support plate. The display module further includes a back plate arranged on the side of the display panel facing away from the light-emitting side; the display device further includes a lamp board driving board and a lamp board control line fixed on the side of the back plate facing away from the display panel. The first support plate has a hollowed-out portion, and the lamp board connector is electrically connected to the lamp board driving board through a lamp board control line passing through the hollowed-out portion.

11. The display device according to claim 1, characterized in that, The display module has a display area and a non-display area surrounding the display area. The cover plate is located in the display area, the display panel is at least located in the display area, and the orthographic projection of the display panel on the horizontal reference plane covers the orthographic projection of the cover plate on the horizontal reference plane. Extending from the display area to the non-display area, the lamp board extends from the non-display area to the display area. The display module further includes an optical component arranged on the side of the display panel away from the cover plate; the optical component extends from the display area to the non-display area.

12. The display device according to claim 11, wherein The surface of the lamp board facing away from the light-emitting side has a clearance area and a component setting area; the first fixing member, the driving chip, and the lamp board connector are arranged in the component setting area. The display module further includes a front frame and a middle frame; the front frame includes a first sub-part arranged on the side of the middle frame close to the lamp board, and a second sub-part connected to one end of the first sub-part and extending away from the lamp board side and arranged on the side of the middle frame away from the display area; the middle frame includes a third sub-part arranged opposite to the second sub-part, a fourth sub-part connected to the middle area of the third sub-part and extending towards the display area side, the fourth sub-part is parallel to the first sub-part, and a fifth sub-part connected to the fourth sub-part and parallel to the third sub-part; a groove is formed between the fifth sub-part and the third sub-part, and the side wall of the back plate is snapped into the groove. The lamp board located in the clearance area is lapped on the side of the first sub-part away from the fourth sub-part. The display panel is fixed to a side of the first subsection close to the fourth subsection via a first adhesive layer, and the display panel is fixed to a side of the fourth subsection close to the first subsection via a second adhesive layer; The optical component is fixed to a side of the fourth sub-section away from the first sub-section through a third adhesive layer.

13. A splicing display device, characterized in that, The display device comprises a plurality of mutually spliced display devices according to any one of claims 1 to 12.

14. A splicing display device, characterized in that, It comprises a plurality of display modules and light panels spliced together; the display modules have a splicing side; The display module includes a display panel and a cover plate arranged on the light-emitting side of the display panel; the cover plate includes a first surface close to the light-emitting side, and a second surface connected to the first surface and surrounding the cover plate; The light board is arranged on at least two sides surrounding the cover plate, and at least two sides of the cover plate include the splicing side; the light board contacts the second surface of the cover plate, and the third surface of the light board located on the light emitting side is flush with the first surface.

15. The splicing display device according to claim 14, wherein, The multiple display modules spliced together include M×N display modules spliced together, where M and N are both positive integers greater than or equal to 2; the light panels include multiple, and the multiple light panels are spliced in sequence along both ends of their length directions and are arranged between adjacent cover panels.

16. The splicing display device according to claim 15, wherein The spliced display device further includes a light board bracket arranged on the backlight side of the light board; The light board bracket is an integrated structure, which is arranged corresponding to multiple light boards spliced together, and is detachably connected to at least one of the display modules adjacent to it; or, the light board bracket includes multiple, the light board brackets and the light boards are arranged one by one, and each of the light board brackets is detachably connected to at least one of the display modules adjacent to it.

17. The splicing display device according to claim 14, characterized in that, The multiple display modules spliced together include M×N display modules spliced together, wherein M and N are both positive integers greater than or equal to 2; the light panels include multiple, and the multiple light panels are spliced in sequence along both ends of their length directions and are arranged around the cover panel.

18. The splicing display device according to claim 14, wherein The display module further includes a back panel provided on the display panel away from the light emitting side; the spliced display device further includes a control box provided corresponding to the display module, wherein a light board driving board and a power board are provided in the control box; the power board is electrically connected to the light board driving board for supplying power to the light board driving board; The spliced display device further includes a third magnet, which is fixed to the outer surface of the control box and is magnetically fixed to a side of the back plate away from the display panel.

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