Display module and display equipment

Abstract

The embodiment of the utility model discloses a display module and a display device. The display module comprises a light-emitting assembly and a back plate. The light-emitting assembly comprises a circuit board, a positioning piece and a plurality of light-emitting diodes. The circuit board is provided with a first surface and a second surface which are opposite. The positioning piece is provided with a first abutting plane and a positioning part located on the first abutting plane, the side, away from the positioning part, of the positioning piece is arranged on the first surface, and the light-emitting diodes are arranged on the second surface; the back plate is provided with a second abutting plane and a positioning hole located in the second abutting plane, the positioning part is inserted into the positioning hole so that the positioning piece can be connected to the back plate, and the circuit board and the light-emitting diodes can be connected to the back plate along with the positioning piece. When the positioning part is inserted into the positioning hole, the first abutting plane is attached to the second abutting plane. Through the mode, the positioning part is inserted into the positioning hole to provide a positioning effect, the first abutting plane and the second abutting plane provide another additional positioning effect, and the positioning precision of the light-emitting assembly and the back plate can be improved.

Description

TECHNICAL FIELD

[0001] The embodiment of the utility model relates to display device technical field, especially display module and display equipment. BACKGROUND

[0002] Display device refers to a kind of device for displaying image, character or other visual information, and common display device includes TV, computer or interactive tablet and so on.

[0003] One of the core components of display device is display module, and display module includes light-emitting assembly and backplate, light-emitting assembly is usually installed on backplate, and light-emitting assembly usually includes circuit board and light-emitting diode installed on circuit board.

[0004] At present, in the assembly process of light-emitting assembly, in order to improve the assembly efficiency of light-emitting assembly, positioning structure is usually arranged between light-emitting assembly and backplate, for example, the circuit board of light-emitting assembly is provided with positioning hole, and the backplate is provided with positioning part, and in the assembly process of light-emitting assembly, the cooperation of positioning hole and positioning part enables light-emitting assembly to be quickly assembled on backplate.In light-emitting assembly, after circuit board installs light-emitting diode, circuit board must be treated in furnace to improve the mounting firmness of light-emitting diode, however, in the process of heating circuit board in furnace, the positioning hole of circuit board is easy to deform, thereby the cooperation of positioning hole and positioning part is easy to deviate (for example, the insertion of positioning hole and positioning part is offset or skewed), which causes the positioning accuracy of light-emitting assembly and backplate to decrease, so that after light-emitting assembly is installed on backplate, the edge of light-emitting assembly is easy to skew, especially when multiple light-emitting assemblies are spliced, the edges of light-emitting assemblies of different groups are easy to have gap, which has adverse effect on the display effect of display device. UTILITY MODEL CONTENT

[0005] The embodiment of the utility model aims at providing a kind of display module and display equipment, which can improve the positioning accuracy of light-emitting assembly and backplate.

[0006] To solve the above technical problems, one technical scheme of the embodiment of the utility model is to provide a kind of display module, including light-emitting assembly and backplate;Light-emitting assembly includes circuit board, positioning member and a plurality of light-emitting diodes, and circuit board is provided with opposite first surface and second surface;Positioning member is provided with first abutment plane and positioning part located at first abutment plane, and the side of positioning member away from positioning part is arranged on first surface, and a plurality of light-emitting diodes are arranged on second surface;Backplate is provided with second abutment plane and positioning hole located at second abutment plane, and positioning part is inserted into positioning hole, so that positioning member is connected to backplate, and circuit board and a plurality of light-emitting diodes are connected to backplate along with positioning member;Wherein, when positioning part is inserted into positioning hole, first abutment plane is attached with second abutment plane.

[0007] In some embodiments, the first surface is arranged at a preset height difference from the first abutting plane; when the positioning part is inserted into the positioning hole, the first abutting plane and the second abutting plane are in close contact, and the first surface is arranged at a distance from the second abutting plane, so that a gap is formed between the circuit board and the back plate for the flowing air to flow.

[0008] In some embodiments, the positioning hole comprises a trumpet hole section and a straight hole section connected to each other, the trumpet hole section is closer to the second abutting plane than the straight hole section, and the trumpet hole section is used to guide the positioning part to be inserted into the straight hole section, so that the positioning part is inserted into the positioning hole.

[0009] In some embodiments, the number of the positioning part and the positioning hole is two, the two positioning parts are arranged at opposite corners of the circuit board, the two positioning holes are arranged at opposite corners of the back plate, and one positioning part is inserted into one positioning hole.

[0010] In some embodiments, the number of the positioning part and the positioning hole is multiple, the multiple positioning parts are arranged at a uniform interval around the periphery of the circuit board, and the multiple positioning holes are arranged at a uniform interval around the back plate, and one positioning part is inserted into one positioning hole.

[0011] In some embodiments, the side wall of the positioning part is provided with an elastic clamping protrusion, the side wall of the positioning hole is provided with a clamping groove, and when the positioning part is inserted into the positioning hole to a predetermined depth, the elastic clamping protrusion is clamped in the clamping groove.

[0012] In some embodiments, the clamping groove comprises a trumpet groove section and a straight groove section connected to each other, the trumpet groove section is closer to the side wall of the positioning hole than the straight groove section, and the trumpet groove section is used to guide the elastic clamping protrusion to be clamped into the straight groove section, so that the elastic clamping protrusion is clamped in the clamping groove.

[0013] In some embodiments, the side wall of the positioning part is provided with a groove, one end of the elastic clamping protrusion is fixed to the groove bottom of the groove, and the other end of the elastic clamping protrusion protrudes from the groove opening of the groove; during the insertion of the positioning part into the positioning hole, the other end of the elastic clamping protrusion is pressed by the side wall of the positioning hole and is retracted into the groove, and when the positioning part is inserted into the positioning hole to a predetermined depth, the other end of the elastic clamping protrusion protrudes from the groove opening of the groove and is clamped in the clamping groove.

[0014] In some embodiments, the number of the elastic clamping protrusion, the groove and the clamping groove is multiple, the multiple grooves are arranged at a uniform interval around the side wall of the positioning part, one elastic clamping protrusion is arranged in one groove, and the multiple clamping grooves are arranged at a uniform interval around the side wall of the positioning hole, and when the positioning part is inserted into the positioning hole to a predetermined depth, one elastic clamping protrusion is clamped in one clamping groove.

[0015] To solve the above technical problems, another technical scheme adopted by the embodiments of the present application is to provide a display device comprising a plurality of the above display modules, and the plurality of display modules are spliced to form the display device.

[0016] The embodiment of the utility model provides an advantageous effect that is different from prior art, the utility model embodiment provides a display module, including light emitting subassembly and backboard, light emitting subassembly includes circuit board, positioning piece and a plurality of emitting diode, circuit board is provided with opposite first surface and second surface, positioning piece is provided with first abutment plane and the positioning part of first abuttable plane, positioning piece is set up in first surface on the side of positioning part, a plurality of emitting diode is set up in second surface, backboard is provided with second abutment plane and the positioning hole of second abuttable plane, positioning part is inserted in positioning hole, to make positioning piece connect in backboard, circuit board and a plurality of emitting diode follow positioning piece and connect in backboard, wherein, when positioning part is inserted in positioning hole, first abutment plane and second abutment plane are pasted together, through above -mentioned mode, positioning part is inserted in positioning hole and provides a positioning effect, when the deformation of positioning part is caused by the furnace heating of circuit board, first abutment plane and second abutment plane provide additional another positioning effect, reduce the negative influence of deformation of positioning part to positioning, can improve the positioning precision of light emitting subassembly and backboard, make light emitting subassembly reduce the probability of edge skew after installing in backboard, especially when a plurality of light emitting subassembly splices, reduce the probability that the edge between different groups of light emitting subassembly produces gap, reduce the adverse effect to the display effect of display device. BRIEF DESCRIPTION OF DRAWINGS

[0017] In order to more clearly illustrate the technical scheme in the specific embodiment of the utility model or prior art, the following will briefly introduce the drawings needed to be used in the specific embodiment or prior art description. In all the drawings, similar elements or parts are generally identified by similar reference signs. In the drawings, each element or part is not necessarily drawn according to the actual proportion.

[0018] Figure 1 It is the structure diagram of the display module provided by the utility model embodiment Figure 1 ;

[0019] Figure 2 It is the structure diagram of the display module provided by the utility model embodiment Figure 2 ;

[0020] Figure 3 It is the structure diagram of the display module provided by the utility model embodiment Figure 3 ;

[0021] Figure 4 It is the schematic diagram of two positioning parts of the display module provided by the utility model embodiment and is diagonally arranged

[0022] Figure 5 It is the schematic diagram of a plurality of positioning parts of the display module provided by the utility model embodiment and is circumferentially arranged

[0023] Figure 6It is the structure schematic diagram of the display module provided by the embodiment of the utility model Figure 4 ;

[0024] Figure 7 It is the splicing schematic diagram of multiple display modules provided by the embodiment of the utility model.

[0025] Mark explanation:

[0026] 1 light emitting assembly, 11 circuit board, 111 first surface, 112 second surface, 12 positioning piece, 121 first abutting plane, 122 positioning part, 1221 elastic clamping convex, 1222 groove, 13 light emitting diode;

[0027] 2 back plate, 21 second abutting plane, 22 positioning hole, 221 horn hole section, 222 straight hole section, 223 clamping groove, 2231 horn groove section, 2232 straight groove section;

[0028] 3 gap;

[0029] 100 display module. Specific implementation

[0030] In order to facilitate understanding of the utility model, the utility model is described in more detail below in combination with the drawings and specific embodiments.It should be noted that when an element is described as being "fixed to" another element, it can be directly on the other element, or one or more intervening elements can be present between them.When an element is described as being "connected" to another element, it can be directly connected to the other element, or one or more intervening elements can be present between them.The terms "upper", "lower", "inner", "outer", "vertical", "horizontal" and the like used in the specification indicate the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the utility model and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the utility model.In addition, the terms "first", "second" and the like are only for the purpose of description, and cannot be understood as indicating or implying relative importance.

[0031] Unless otherwise defined, all technical and scientific terms used in the specification have the same meaning as commonly understood by one of ordinary skill in the art to which the utility model belongs.The terms used in the specification of the utility model are only for the purpose of describing the specific embodiments, and are not used to limit the utility model.The term "and / or" used in the specification includes any and all combinations of one or more related listed items.

[0032] Display device refers to a device for displaying images, characters or other visual information.Common display devices include televisions, computers or interactive tablets, etc.

[0033] One of the core components of the display device is the display module, which includes a light-emitting assembly and a back plate. The light-emitting assembly is usually mounted on the back plate, and the light-emitting assembly usually includes a circuit board and light-emitting diodes mounted on the circuit board.

[0034] Currently, in the assembly process of the light-emitting assembly, in order to improve the assembly efficiency of the light-emitting assembly, the light-emitting assembly and the back plate are usually provided with positioning structures that cooperate with each other, for example, the circuit board of the light-emitting assembly is provided with a positioning hole, and the back plate is provided with a positioning portion. In the assembly process of the light-emitting assembly, the cooperation of the positioning hole and the positioning portion enables the light-emitting assembly to be quickly assembled on the back plate. In the light-emitting assembly, after the circuit board is installed with the light-emitting diodes, the circuit board needs to be treated in a furnace to improve the mounting firmness of the light-emitting diodes. However, in the process of heating the circuit board in the furnace, the positioning hole of the circuit board is prone to deformation, which in turn causes the cooperation of the positioning hole and the positioning portion to deviate (for example, the positioning hole and the positioning portion are offset or skewed), resulting in a decrease in the positioning accuracy of the light-emitting assembly and the back plate. After the light-emitting assembly is mounted on the back plate, the edges of the light-emitting assembly are prone to skew, especially when multiple light-emitting assemblies are spliced, which is prone to cause gaps between the edges of different groups of light-emitting assemblies, thereby adversely affecting the display effect of the display device.

[0035] In view of this, the utility model provides an embodiment of a display module 100, which can improve the positioning accuracy of the light-emitting assembly 1 and the back plate 2.

[0036] In order to facilitate the reader to understand the concept of the embodiments of the utility model, the specific structure of the display module 100 is described as follows:

[0037] Please refer to Figures 1 to 3The display module 100 comprises the light-emitting assembly 1 and the back plate 2; the light-emitting assembly 1 comprises the circuit board 11, the positioning member 12 and a plurality of light-emitting diodes 13, the circuit board 11 is provided with the opposite first surface 111 and the second surface 112; the positioning member 12 is provided with the first abutting plane 121 and the positioning part 122 located at the first abutting plane 121, the side of the positioning member 12 away from the positioning part 122 is arranged on the first surface 111, and the plurality of light-emitting diodes 13 are arranged on the second surface 112; the back plate 2 is provided with the second abutting plane 21 and the positioning hole 22 located at the second abutting plane 21, the positioning part 122 is inserted into the positioning hole 22, so that the positioning member 12 is connected to the back plate 2, and the circuit board 11 and the plurality of light-emitting diodes 13 follow the positioning member 12 to be connected to the back plate 2; wherein, when the positioning part 122 is inserted into the positioning hole 22, the first abutting plane 121 is attached to the second abutting plane 21. In the foregoing manner, the positioning part 122 inserted into the positioning hole 22 provides a positioning effect, when the circuit board 11 is heated in the furnace and causes the positioning part 122 to deform, the first abutting plane 121 and the second abutting plane 21 provide an additional positioning effect, which reduces the negative impact of the deformation of the positioning part 122 on the positioning, and can improve the positioning accuracy of the light-emitting assembly 1 and the back plate 2, so that after the light-emitting assembly 1 is installed on the back plate 2, the probability of edge skew of the light-emitting assembly 1 is reduced, especially when a plurality of light-emitting assemblies 1 are spliced, the probability of a gap between the edges of different groups of light-emitting assemblies 1 is reduced, and the adverse effect on the display effect of the display device is reduced.

[0038] In some embodiments, the side of the positioning member 12 away from the positioning part 122 is arranged on the first surface 111 after the circuit board 11 is heated in the furnace, and the positioning part 122 is formed by CNC machining when the side of the positioning member 12 away from the positioning part 122 is arranged on the first surface 111 after the circuit board 11 is heated in the furnace. In the foregoing manner, the deformation of the positioning member 12 caused by the heating of the circuit board 11 in the furnace can be avoided, and the deformation of the positioning part 122 is further avoided, thereby improving the positioning accuracy of the positioning part 122.

[0039] Please refer to Figures 1 to 3 The first surface 111 is arranged at a preset height difference H from the first abutting plane 121; wherein, when the positioning part 122 is inserted into the positioning hole 22, the first abutting plane 121 is attached to the second abutting plane 21, and the first surface 111 is arranged at a distance from the second abutting plane 21, so that a gap 3 is formed between the circuit board 11 and the back plate 2, and the gap 3 is used for flowing air to flow. In the foregoing manner, when the flowing space flows through the gap 3, the flowing air can quickly take away the heat generated by the light-emitting diodes 13 during the working process and transferred to the circuit board 11, thereby improving the heat dissipation efficiency of the light-emitting assembly 1.

[0040] Please refer to Figures 1 to 3The positioning hole 22 comprises a connected flared hole section 221 and a straight hole section 222, the flared hole section 221 is closer to the second abutting plane 21 than the straight hole section 222, the flared hole section 221 is used to guide the positioning part 122 to insert into the straight hole section 222, so that the positioning part 122 is inserted into the positioning hole 22. In the above manner, in the process of inserting the positioning part 122 into the positioning hole 22, if the positioning part 122 and the positioning hole 22 are offset, the positioning part 122 can also contact the flared slope of the flared hole section 221 of the positioning hole 22, so that the positioning part 122 is inserted along the flared slope of the flared hole section 221 into the straight hole section 222, thereby improving the alignment degree of the positioning part 122 and the positioning hole 22 during insertion, reducing misinsertion, and improving insertion efficiency.

[0041] In some embodiments, referring to Figure 4 The number of the positioning part 122 and the positioning hole 22 is two, the two positioning parts 122 are arranged at opposite corners of the circuit board 11, the two positioning holes 22 are arranged at opposite corners of the back plate 2, and one positioning part 122 is inserted into one positioning hole 22. In the above manner, the one-to-one matching of the two positioning parts 122 and the two positioning holes 22 can improve the positioning accuracy of the light emitting assembly 1 and the back plate 2. In addition, in the above manner, the opposite arrangement can improve the uniformity of the distribution of the positioning structure and reduce the positioning deviation or instability caused by the asymmetric distribution of the positioning structure.

[0042] In some embodiments, referring to Figure 5 The number of the positioning part 122 and the positioning hole 22 is multiple, the multiple positioning parts 122 are uniformly arranged around the periphery of the circuit board 11, and the multiple positioning holes 22 are uniformly arranged around the back plate 2, and one positioning part 122 is inserted into one positioning hole 22. In the above manner, the one-to-one matching of the multiple positioning parts 122 and the multiple positioning holes 22 can improve the positioning accuracy of the light emitting assembly 1 and the back plate 2. In addition, in the above manner, the circumferential arrangement can improve the uniformity of the distribution of the positioning structure and reduce the positioning deviation or instability caused by the uneven distribution of the positioning structure.

[0043] Please refer to Figure 6The side wall of the positioning part 122 is provided with an elastic clamping protrusion 1221, and the side wall of the positioning hole 22 is provided with a clamping groove 223, when the positioning part 122 is inserted into the positioning hole 22 to a predetermined depth, the elastic clamping protrusion 1221 is clamped in the clamping groove 223. Wherein, in the process of inserting the positioning part 122 into the positioning hole 22, the elastic clamping protrusion 1221 is elastically compressed and deformed under the extrusion of the side wall of the positioning hole 22, when the positioning part 122 is inserted into the positioning hole 22 to a predetermined depth, the elastic clamping protrusion 1221 is consistent with the height of the clamping groove 223, at this time, the elastic clamping protrusion 1221 restores the deformation, and the elastic clamping protrusion 1221 is clamped in the clamping groove 223. Through the above manner, the insertion firmness of the positioning part 122 and the positioning hole 22 can be improved, and the loosening or falling off of the positioning part 122 and the positioning hole 22 caused by external force or vibration can be reduced.

[0044] Please refer to Figure 6 The clamping groove 223 comprises a trumpet groove section 2231 and a straight groove section 2232 connected with each other, the trumpet groove section 2231 is closer to the side wall of the positioning hole 22 than the straight groove section 2232, and the trumpet groove section 2231 is used for guiding the elastic clamping protrusion 1221 to be clamped into the straight groove section 2232, so that the elastic clamping protrusion 1221 is clamped in the clamping groove 223. Through the above manner, in the process of inserting the elastic clamping protrusion 1221 into the positioning hole 22 along with the positioning part 122, one end of the elastic clamping protrusion 1221 along the height direction first contacts the trumpet inclined surface of the trumpet groove section 2231, and then the other end of the elastic clamping protrusion 1221 along the height direction moves along the trumpet inclined surface of the trumpet groove section 2231 to be clamped into the straight groove section 2232, so that the alignment degree of the elastic clamping protrusion 1221 and the clamping groove 223 in the clamping process is improved, and the clamping accuracy is improved.

[0045] Please refer to Figure 6 The side wall of the positioning part 122 is provided with a groove 1222, one end of the elastic clamping protrusion 1221 is fixed to the groove bottom of the groove 1222, and the other end of the elastic clamping protrusion 1221 protrudes from the groove opening of the groove 1222; wherein, in the process of inserting the positioning part 122 into the positioning hole 22, the other end of the elastic clamping protrusion 1221 is retracted into the groove 1222 under the extrusion of the side wall of the positioning hole 22, when the positioning part 122 is inserted into the positioning hole 22 to a predetermined depth, the other end of the elastic clamping protrusion 1221 protrudes from the groove opening of the groove 1222 and is clamped in the clamping groove 223. Through the above manner, the limitation of the groove 1222 can make the elastic clamping protrusion 1221 be accommodated in the groove 1222 after being compressed to a certain degree, so that the elastic failure caused by excessive compression of the elastic clamping protrusion 1221 is avoided.

[0046] In some embodiments, the number of elastic clamping protrusions 1221, the number of grooves 1222 and the number of clamping grooves 223 are all multiple, the multiple grooves 1222 are uniformly arranged around the side wall of the positioning part 122, one elastic clamping protrusion 1221 is arranged in one groove 1222, and the multiple clamping grooves 223 are uniformly arranged around the side wall of the positioning hole 22, and one elastic clamping protrusion 1221 is clamped in one clamping groove 223 when the positioning part 122 is inserted into the positioning hole 22 to a predetermined depth. Through the above-mentioned mode, the one-to-one matching of the multiple elastic clamping protrusions 1221 and the multiple clamping grooves 223 further improves the firmness after the positioning part 122 and the positioning hole 22 are inserted. In addition, through the above-mentioned mode, the uniformity of the clamping structure is improved by the surrounding arrangement, and the clamping deviation or instability caused by the uneven distribution of the clamping structure is reduced.

[0047] The utility model embodiment provides a kind of display module 100, including light-emitting component 1 and backboard 2;Light-emitting component 1 includes circuit board 11, positioning member 12 and several light-emitting diodes 13, and circuit board 11 is provided with opposite first surface 111 and second surface 112;Positioning member 12 is provided with first abutment plane 121 and the positioning part 122 located at first abutment plane 121, and the side of positioning member 12 away from positioning part 122 is arranged on first surface 111, and several light-emitting diodes 13 are arranged on second surface 112;Backboard 2 is provided with second abutment plane 21 and the positioning hole 22 located at second abutment plane 21, and positioning part 122 is inserted into positioning hole 22, to make positioning member 12 connect on backboard 2, and circuit board 11 and several light-emitting diodes 13 follow positioning member 12 connect on backboard 2;Wherein, when positioning part 122 is inserted into positioning hole 22, first abutment plane 121 is attached with second abutment plane 21. Through the above-mentioned mode, positioning part 122 is inserted into positioning hole 22 to provide a positioning effect, and when circuit board 11 is heated in furnace to cause deformation of positioning part 122, first abutment plane 121 and second abutment plane 21 provide additional another positioning effect, reduce the negative influence of deformation of positioning part 122 on positioning, can improve the positioning accuracy of light-emitting component 1 and backboard 2, so that the probability of edge skew of light-emitting component 1 is reduced after being installed on backboard 2, especially when multiple light-emitting component 1 is spliced, the probability that gap is generated between the edges of different groups of light-emitting component 1 is reduced, and the adverse effect on the display effect of display equipment is reduced.

[0048] The utility model further provides an embodiment of display equipment, please refer to Figure 7 , and the display equipment includes multiple display module 100, and multiple display module 100 is spliced to form display equipment, and the specific structure and function of the above-mentioned display module 100 can be referred to the above-mentioned embodiment, which will not be described one by one here.

[0049] The above description is merely an embodiment of this utility model and does not limit the patent scope of this utility model. Any equivalent structural or procedural transformations made based on the description and drawings of this utility model, or direct or indirect applications in other related technical fields, are similarly included within the patent protection scope of this utility model.

Claims

1. A display module, characterized in that, include: A light-emitting component includes a circuit board, a positioning member, and a plurality of light-emitting diodes. The circuit board has a first surface and a second surface facing each other. The positioning member has a first abutting plane and a positioning portion located on the first abutting plane. The side of the positioning member facing away from the positioning portion is disposed on the first surface. The plurality of light-emitting diodes are disposed on the second surface. The back plate has a second abutting surface and a positioning hole located on the second abutting surface. The positioning part is inserted into the positioning hole so that the positioning member is connected to the back plate. The circuit board and a plurality of light-emitting diodes are connected to the back plate along with the positioning member. When the positioning part is inserted into the positioning hole, the first abutting plane and the second abutting plane are in contact.

2. The display module according to claim 1, characterized in that, The first surface and the first contact plane are set at a preset height difference; When the positioning part is inserted into the positioning hole, the first abutting plane and the second abutting plane are in contact, and the first surface and the second abutting plane are spaced apart so that a gap is formed between the circuit board and the back plate, and the gap is used to allow air to flow.

3. The display module according to claim 1, characterized in that, The positioning hole includes a connected flared hole section and a straight hole section. The flared hole section is closer to the second abutting plane than the straight hole section. The flared hole section is used to guide the positioning part to be inserted into the straight hole section so that the positioning part is inserted into the positioning hole.

4. The display module according to claim 1, characterized in that, The number of positioning parts and positioning holes are both two. The two positioning parts are located diagonally on the circuit board, and the two positioning holes are located diagonally on the back plate. One positioning part is inserted into one positioning hole.

5. The display module according to claim 1, characterized in that, The number of positioning parts and positioning holes are both multiple. Multiple positioning parts are evenly spaced around the periphery of the circuit board, and multiple positioning holes are evenly spaced around the back plate. One positioning part is inserted into one positioning hole.

6. The display module according to claim 1, characterized in that, The sidewall of the positioning part is provided with an elastic locking protrusion; The side wall of the positioning hole is provided with a slot. When the positioning part is inserted into the positioning hole to a predetermined depth, the elastic protrusion engages with the slot.

7. The display module according to claim 6, characterized in that, The slot includes a connected horn-shaped slot section and a straight slot section. The horn-shaped slot section is closer to the side wall of the positioning hole than the straight slot section. The horn-shaped slot section is used to guide the elastic card protrusion into the straight slot section so that the elastic card protrusion engages with the slot.

8. The display module according to claim 6, characterized in that, The side wall of the positioning part is provided with a groove, one end of the elastic locking protrusion is fixed to the bottom of the groove, and the other end of the elastic locking protrusion extends out of the groove opening; During the process of the positioning part being inserted into the positioning hole, the other end of the elastic protrusion is squeezed into the groove by the side wall of the positioning hole. When the positioning part is inserted to a predetermined depth in the positioning hole, the other end of the elastic protrusion extends out from the groove opening and engages with the groove.

9. The display module according to claim 8, characterized in that, The number of elastic protrusions, grooves, and slots is multiple. The multiple grooves are evenly spaced and surround the side wall of the positioning part. One elastic protrusion is disposed in one groove. The multiple slots are evenly spaced and surround the side wall of the positioning hole. When the positioning part is inserted into the positioning hole to a predetermined depth, one elastic protrusion engages with one slot.

10. A display device, characterized in that, It includes a plurality of display modules as described in any one of claims 1-9, wherein the plurality of display modules are spliced ​​together to form the display device.

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