Backplate mounting assembly, mounting jig and display module

Abstract

The utility model provides a kind of backboard mounting assembly, mounting jig and display module, backboard mounting assembly includes: backboard, is provided with the abutting portion that projects outward;Middle frame is provided with first buckle;First buckle projects towards the direction close to backplate;Abutting portion has contact surface, contact surface is obliquely arranged;First buckle is abutted with contact surface, to make middle frame be centrally arranged with backplate under the guiding action of contact surface.The application is obliquely arranged by contact surface, so that in the process of backplate and middle frame assembly, contact surface can guide effect to first buckle, to pull middle frame and move towards the direction close to contact surface, so that the installation of middle frame and backplate is more central, the consistency and the aesthetic of the middle frame and backplate after assembly are improved.Meanwhile, the supporting force of contact surface and the supporting force of abutting portion to middle frame cooperate, can prevent middle frame from being concave, further improve the service life of middle frame.

Description

Technical Field

[0001] This utility model relates to the field of display technology, specifically to a backplate mounting assembly, a mounting fixture, and a display module. Background Technology

[0002] In current monitor assembly processes, a jig is typically used to bond the mid-frame to the back panel. During bonding, the jig needs to hold the mid-frame in place and maintain downward pressure to achieve adhesion between the mid-frame and the back panel using adhesive. Therefore, the relative positions of the mid-frame, jig, and back panel directly affect the module assembly.

[0003] If the gap between the middle frame and the fixture is large during the placement process, it is difficult to ensure that the middle frame can be completely centered; if the gap between the middle frame and the fixture is small, it is impossible to ensure that the middle frame can be placed into the fixture in one go, resulting in repeated placement and a decrease in assembly efficiency.

[0004] During the assembly of the middle frame and back plate, the jig is affected by the gaps between the base and back plate, the gaps between the middle frame and back plate, and the gaps between the jig and the middle frame, which causes the middle frame and back plate to be unable to be centered after assembly.

[0005] In summary, the existing backplate installation method is difficult to center, the accuracy cannot meet customer needs, and after assembly, it is easy to cause a situation where the gap is large on one side and small on the other side, which affects the aesthetics and consistency of the module. Utility Model Content

[0006] In view of this, the present invention aims to provide a back panel mounting assembly, a mounting fixture, and a display module to solve the problem in the prior art that the back panel and the middle frame cannot be perfectly centered during assembly.

[0007] To solve the above technical problems, this utility model provides a backplate mounting assembly, comprising:

[0008] The back panel has an outwardly protruding abutment.

[0009] The middle frame is provided with a first buckle; the first buckle protrudes towards the direction close to the back plate;

[0010] The abutting part has a contact surface, and the contact surface is inclined.

[0011] The first buckle abuts against the contact surface, so that the middle frame is centered with the back plate under the guidance of the contact surface.

[0012] In some embodiments of this utility model, the first buckle and the contact surface are in surface contact.

[0013] In some embodiments of this utility model, the contact surface is inclined from the edge of the back plate toward the center of the back plate;

[0014] The first latch is inclined from the edge of the middle frame toward a direction away from the center of the middle frame.

[0015] In some embodiments of this utility model, the tilt angle of the first buckle is smaller than the tilt angle of the contact surface.

[0016] In some embodiments of this utility model, a snap-fit ​​component is provided on the back plate; the middle frame is also provided with a second buckle, which protrudes in a direction away from the back plate;

[0017] The snap-fit ​​component engages with the second snap-fit.

[0018] In some embodiments of this utility model, the middle frame has a positioning hole, which is disposed through the middle frame.

[0019] To solve the above-mentioned technical problems, this utility model also provides an installation fixture for assembling the backplate mounting assembly as described above, comprising:

[0020] The adsorption head adsorbs onto the side of the middle frame away from the first buckle and presses down toward the back plate;

[0021] The adsorption pressure head is provided with a positioning post, which passes through the positioning hole on the middle frame.

[0022] In some embodiments of this utility model, an elastic element is provided at one end of the positioning post near the adsorption head, and the elastic element elastically retracts when the positioning post contacts the back plate.

[0023] In some embodiments of this utility model, the adsorption pressure head is provided with a receiving cavity, and the elastic element is disposed in the receiving cavity;

[0024] One end of the elastic element is connected to the accommodating cavity, and the other end is connected to the positioning post;

[0025] The positioning post extends out of the receiving cavity when the elastic element is in the normal state;

[0026] When the elastic element retracts elastically, the positioning post is partially located in the accommodating cavity.

[0027] To solve the above-mentioned technical problems, this utility model also provides a display module, including the backplate mounting assembly as described above.

[0028] Compared with the prior art, the advantages of the backplate mounting assembly in this utility model are as follows:

[0029] This utility model provides a back panel mounting assembly. It features an abutment portion on the back panel and a first buckle on the middle frame. The abutment portion has a contact surface, and the first buckle abuts against the contact surface during the assembly of the back panel and the middle frame. The contact surface is angled, guiding the first buckle during assembly to pull the middle frame closer to the contact surface. This ensures a more centered installation of the middle frame and back panel, improving the aesthetics and consistency of the assembled assembly. Simultaneously, the force provided by the contact surface, combined with the supporting force of the abutment portion on the middle frame, prevents the middle frame from concave, further extending its service life. Attached Figure Description

[0030] Figure 1 The diagram shown is a schematic diagram of the mounting fixture assembling the backplate mounting assembly according to an embodiment of this utility model.

[0031] Figure 2 The diagram shown is a structural schematic of the middle frame provided in an embodiment of this utility model.

[0032] Figure 3 The diagram shown is a schematic representation of the connection relationship between the first buckle and the abutment provided in an embodiment of this utility model.

[0033] Figure 4 The diagram shows the positional relationship between the mounting fixture and the middle frame provided in this embodiment of the present invention.

[0034] Figure 5 The figure shown is an exploded view of the display module provided in an embodiment of this utility model.

[0035] The explanations of the reference numerals in the accompanying drawings are as follows:

[0036] 1-Back panel; 10-Abutting part; 11-Snap-fit ​​part; 100-Contact surface;

[0037] 2-Middle frame; 20-First buckle; 21-Second buckle; 22-Positioning hole;

[0038] 3-Adsorption head; 30-Positioning post; 31-Elastic element; 32-Accommodation cavity;

[0039] 4-Adhesive component; 5-Reflective sheet; 6-Light guide plate; 7-Diffusive film; 8-Brightness enhancement layer; 9-DBEF film. Detailed Implementation

[0040] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0041] In the description of this utility model, it should be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "circumferential", "radial", etc., indicating the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model.

[0042] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this utility model, "a plurality of" means two or more, unless otherwise explicitly specified.

[0043] As those skilled in the art will understand, in the existing installation process of the back panel and mid-frame, the mounting fixture needs to adsorb the mid-frame and apply downward pressure to it to bond the mid-frame to the back panel. During this process, when the mounting fixture adsorbs the mid-frame, gaps may form due to the adsorption force or minor tolerances on the mid-frame surface; furthermore, when the mounting fixture installs the mid-frame, the back panel needs to be placed in the fixture base, and the position of the back panel in the fixture base will also create gaps; simultaneously, gaps may also exist in the mid-frame as the mounting fixture presses it downwards. These three types of gaps directly result in the mid-frame and back panel not being centered after installation, affecting the aesthetics and consistency of the module. Furthermore, the existence of gaps can lead to uneven stress on the mid-frame, making it prone to deformation and affecting its service life.

[0044] Based on this, please refer to Figures 1 to 3This utility model proposes a back panel mounting assembly, including: a back panel 1 and a middle frame 2. The back panel 1 is provided with an outwardly protruding abutment part 10; the middle frame 2 is provided with a first buckle 20, which protrudes towards the back panel 1; the abutment part 10 is provided with a contact surface 100, which is inclined; the first buckle 20 abuts against the contact surface 100 so that the middle frame 2 is centered with the back panel 1 under the guidance of the contact surface 100.

[0045] In this embodiment, the abutment part 10 extends from the back plate 1 toward the middle frame 2, and the abutment position of the contact surface 100 and the first buckle 20 corresponds to the position where the middle frame 2 and the back plate 1 are centered. Therefore, when the first buckle 20 abuts against the contact surface 100, the middle frame 2 and the back plate 1 can be centered. At the same time, when there is a deviation in the position of the middle frame 2 and the back plate 1, the inclined contact surface 100 can guide the middle frame 2 to move toward the contact surface 100, so as to play a centering and correcting role in the installation position of the middle frame 2.

[0046] In addition, please refer to Figure 3 When the first buckle 20 abuts against the abutment part 10, the surface of the abutment part 10 away from the back panel 1 also comes into contact with the middle frame 2. The abutment part 10 can also provide a supporting force to the middle frame 2 in the direction away from the back panel 1. Combined with the force of the contact surface 100 on the first buckle 20, it can prevent the middle frame 2 from concave during assembly and use, reduce the impact on the viewing area size, further improve the user experience, and also extend the service life of the middle frame 2.

[0047] Optionally, the backplate 1 can be made of metal materials, such as aluminum alloy, galvanized steel plate, etc. The main function of the backplate 1 is to form a cavity structure by stamping to support the optical film; it also serves the functions of heat dissipation and mechanical protection.

[0048] The middle frame 2 can be made of plastic or metal. In this embodiment, the middle frame 2 is made of metal and formed by sheet metal process. The middle frame 2 is mainly used to fix optical components, support the panel, seal and prevent dust, and achieve a narrow bezel.

[0049] The back panel 1 and the middle frame 2 can be connected by a combination of adhesive bonding and mechanical snap-fit ​​fixing. Adhesive bonding forms a mechanical collarbone after the adhesive cures, improving peel resistance. Mechanical snap-fit ​​fixing prevents scratches between the back panel 1 and the middle frame 2, further enhancing the connection strength. Simultaneously, the adhesive bonding between the metal middle frame 2 and the back panel 1 allows heat to be transferred from the panel to the middle frame 2, aiding in heat dissipation.

[0050] In an alternative embodiment, the first latch 20 is in surface contact with the contact surface 100. It should be noted that... Figure 3 In the illustrated example, the contact surface 100 is the side surface of the abutment portion 10. In other embodiments, the contact surface 100 may also be the top surface of the abutment portion 10.

[0051] Specifically, the first latch 20 and the contact surface 100 can have point contact, with a protrusion on the first latch 20 and a corresponding recess on the contact surface 100, allowing the protrusion to engage with the recess for connection. Alternatively, the first latch 20 and the contact surface 100 can have line contact, with a protruding ridge on the first latch 20 and a corresponding groove on the contact surface 100, allowing the ridge to engage with the groove. Finally, the first latch 20 and the contact surface 100 can have surface contact, with a first bend on the first latch 20 that directly contacts the contact surface 100. Surface contact, compared to point and line contact, increases the contact area between the first latch 20 and the contact surface 100, improving connection reliability.

[0052] Optional, please refer to Figure 3 The contact surface 100 is inclined from the edge of the back plate 1 toward the center of the back plate 1. Correspondingly, the first bent portion is inclined from the edge of the middle frame 2 toward the direction away from the center of the middle frame 2. The first bent portion and the contact surface 100 are in surface contact. Since both the first bent portion and the contact surface 100 are inclined, a force is generated toward the contact surface 100 during the overlapping process, thereby correcting the relative position between the middle frame 2 and the back plate 1.

[0053] In other embodiments, the contact surface 100 may also be inclined from the edge of the back plate 1 toward the direction away from the center of the back plate 1, and the first buckle 20 may also be inclined from the edge of the middle frame 2 toward the direction close to the middle frame 2. With this configuration, the first buckle 20 is hook-shaped and can hook the contact surface 100 to form a connection.

[0054] As a preferred embodiment, please continue to refer to Figure 3 The tilt angle α of the first buckle 20 is smaller than the tilt angle β of the contact surface 100. This smaller tilt angle α facilitates the alignment and assembly of the first buckle 20 with the contact surface 100. Furthermore, during the assembly of the middle frame 2 and the back panel 1, the end of the first buckle 20 will contact the contact surface 100 before the first buckle 20 itself. At this point, a force will be generated between the first buckle 20 and the contact surface 100, acting towards the contact surface 100 to ensure the centered alignment of the middle frame 2 and the back panel 1.

[0055] Please refer to Figure 1 and Figure 3The back panel 1 is provided with a snap-fit ​​element 11, and the middle frame 2 is provided with a second snap-fit ​​element 21, which protrudes away from the back panel 1. The snap-fit ​​element 11 and the second snap-fit ​​element 21 are engaged and connected. The second snap-fit ​​element 21 further increases the connection stability between the middle frame 2 and the back panel 1, and the second snap-fit ​​element 21 and the back panel 1 mainly serve as a connection, while the first snap-fit ​​element 20 and the back panel 1 mainly serve as a position corrector. The two work together to ensure the connection strength between the middle frame 2 and the back panel 1, and also help to achieve the centering of the middle frame 2 and the back panel 1.

[0056] by Figure 3 For example, the snap-fit ​​member 11 can be a protrusion that is opposite to the abutment member 10 and protrudes in opposite directions to connect with the first snap-fit ​​member 20 and the second snap-fit ​​member 21 respectively. The second snap-fit ​​member 21 is provided with a second bend. The second bend can be opposite to the first bend, or it can be positioned closer to the back plate 1 or further away from the back plate 1. Those skilled in the art can set the relative positions of the first bend and the second bend according to the actual situation.

[0057] The second buckle 21 can be set perpendicular to the plane of the middle frame 2, or it can be set at other angles to the plane of the middle frame 2. Correspondingly, the setting angle of the snap-fit ​​11 should be adapted to the setting angle of the second buckle 21. The contact method between the second buckle 21 and the snap-fit ​​11 is preferably surface contact to increase the contact area and improve the connection effect; while ensuring structural strength, the contact method between the second buckle 21 and the snap-fit ​​11 can also be point contact or line contact.

[0058] Please refer to Figure 2 The middle frame 2 is a frame structure, and the back plate 1 has a mounting groove (not shown in the figure) formed circumferentially. The middle frame 2 is installed in the mounting groove. The first buckle 20 and the second buckle 21 are both set on the edge of the middle frame 2 and are adapted to the position of the abutment part 10 and the snap fastener 11 on the back plate 1.

[0059] exist Figure 2 In the illustrated example, a first latch 20 and two second latches 21 are provided on one side of the middle frame 2. The first latch 20 is positioned near the center of the side, and the two second latches 21 are respectively positioned on both sides of the first latch 20. This arrangement ensures the strength of the engagement connection between the middle frame 2 and the back panel 1, while the first latch 20 located between the two second latches 21 can cooperate with the contact surface 100 of the abutment part 10 to correct the installation position of the middle frame 2 and the back panel 1. In other embodiments, the position and number of the first latch 20 and the second latches 21 can be configured by those skilled in the art according to actual conditions, and this embodiment does not impose any limitations on this.

[0060] In another embodiment, please refer to Figure 1 and Figure 4 This utility model also provides an installation fixture, including an adsorption head 3; the adsorption head 3 adsorbs the surface of the middle frame 2 away from the first buckle 20 and presses it down toward the back plate 1. Those skilled in the art will understand that during the installation of the middle frame 2 and the back plate 1, the adsorption head 3 adsorbs the middle frame 2 and presses it down toward the back plate 1. An adhesive joint 4 is provided between the middle frame 2 and the back plate 1. The installation fixture continues to press down until the middle frame 2 and the back plate 1 are bonded together by the adhesive joint 4. Simultaneously, as the middle frame 2 falls to contact the back plate 1, it is also necessary to ensure that the first buckle 20 abuts against the contact surface 100 of the abutment part 10, and the second buckle 21 engages with the snap-fit ​​joint 11.

[0061] Among them, the adhesive component 4 can be double-sided adhesive, and the adhesive on it can be different types of adhesive such as silicone, epoxy resin, polyurethane, etc.; structural adhesive or liquid adhesive can also be used to help fill the gap between the middle frame 2 and the back plate 1.

[0062] To ensure the accurate relative position of the mounting fixture and the middle frame 2, positioning posts 30 are provided on the adsorption surfaces of the adsorption head 3 and the middle frame 2, and positioning holes 22 are provided on the middle frame 2, with the positioning posts 30 passing through the positioning holes 22. Before the adsorption head 3 forms adsorption on the middle frame 2, the positioning posts 30 are first inserted into the positioning holes 22, and then a negative pressure is formed between the middle frame 2 and the adsorption head 3. The middle frame 2 comes into contact with the adsorption head 3 under the action of the pressure difference, thereby positioning the relative positional relationship between the adsorption head 3 and the middle frame 2.

[0063] For further information, please refer to the following: Figure 3 An elastic element 31 is provided at one end of the positioning post 30 near the adsorption head 3. The elastic element 31 elastically retracts when the positioning post 30 contacts the back plate 1. The positioning post 30 extends from the adsorption surface of the adsorption head 3 towards the back plate 1. During the adsorption process of the adsorption head 3 adsorbing the middle frame 2 and continuously pressing down, the positioning post 30 contacts the back plate 1 before the middle frame 2. The elastic element 31 ensures that after the positioning post 30 contacts the back plate 1, it can shorten as the elastic element 31 retracts, ensuring that the adsorption head 3 can continue to press down until the middle frame 2 contacts the back plate 1, thereby ensuring the pressing effect of the adsorption head 3 and improving the connection effect between the middle frame 2 and the back plate 1.

[0064] Specifically, a receiving cavity 32 is provided on the adsorption surface of the mounting fixture, and an elastic element 31 is disposed in the receiving cavity 32, with one end connected to the bottom surface of the receiving cavity 32 and the other end connected to the positioning post 30. When the elastic element 31 is in the normal state, the positioning post 30 extends out of the receiving cavity 32. When the positioning post 30 comes into contact with the back plate 1, it is subjected to the reaction force of the back plate 1, and the elastic element 31 changes from the normal state to the contracted state. The positioning post 30 can be partially retracted into the receiving cavity 32 to ensure the continued downward pressure of the mounting fixture.

[0065] The size of the positioning post 30 can be slightly smaller than the size of the receiving cavity 32, and the shape of the positioning post 30 should be adapted to the shape of the receiving cavity 32 so as to facilitate the movement of the positioning post 30 in the receiving cavity 32. As some optional embodiments, the shape of the receiving cavity 32 can be a rectangular groove, an arc-shaped groove, or other irregularly shaped grooves, and this embodiment does not limit this.

[0066] Optionally, the positioning posts 30 can be made of plastic to prevent damage to the back plate 1 during collisions. The positioning posts 30 can be cylindrical, cubic, or other irregularly shaped components. The positioning posts 30 can be evenly distributed on the adsorption surface of the mounting fixture, or they can be set only at characteristic positions of the middle frame 2 to facilitate rapid positioning.

[0067] The following is combined with Figures 1 to 4 The working principle of the installation fixture proposed in this embodiment will be explained.

[0068] Before the adsorption head 3 adsorbs the middle frame 2, the back plate 1 is placed on the base plate of the fixture, and the positioning post 30 is inserted into the positioning hole 22. A negative pressure is formed on the adsorption head 3, thereby achieving adsorption of the middle frame 2. The adsorption head 3 drives the middle frame 2 to move closer to the back plate 1. During the movement, the first buckle 20 of the middle frame 2 is gradually aligned with the abutment part 10 of the back plate 1, and the second buckle 21 of the middle frame 2 is aligned with the snap-fit ​​part 11 of the back plate 1. When the positioning post 30 contacts the back plate 1 before the middle frame 2, the elastic member 31 is forced to retract, causing the positioning post 30 to retract, allowing the adsorption head 3 to continue moving until the middle frame 2 contacts the back plate 1. At this time, the first buckle 20 abuts against the contact surface 100 of the abutment part 10, and the second buckle 21 engages with the snap-fit ​​part 11. The adsorption head 3 remains pressed down, and the adhesive member 4 is forced to achieve adhesive bonding between the middle frame 2 and the back plate 1. During this process, under the downward pressure of the adsorption head 3, the inclined contact surface 100 can shift in position of the middle frame 2, and before the adhesive part 4 has formed a stable connection, it guides the middle frame 2 to move, thereby correcting the relative position between the middle frame 2 and the back plate 1.

[0069] In another embodiment, please refer to Figure 5This utility model also provides a display module, including the back panel mounting assembly described above. By using the aforementioned back panel mounting assembly, during the installation of the middle frame 2 and the back panel 1, on the one hand, a first buckle 20 abuts against an inclined contact surface 100. When the position of the middle frame 2 deviates, the inclined contact surface 100 guides the middle frame 2 towards the contact surface 100, ensuring the middle frame 2 and the back panel 1 are centered. Simultaneously, a second buckle 21 and a snap-fit ​​member 11 assist in engagement, further enhancing the connection strength between the middle frame 2 and the back panel 1. On the other hand, by setting a positioning post 30 on the mounting fixture and an elastic member 31 at the end of the positioning post 30 near the mounting fixture, positioning between the mounting fixture and the middle frame 2 can be achieved. Furthermore, the positioning post 30 can elastically retract when it contacts the back panel 1 before the middle frame 2, without affecting the normal installation of the mounting fixture.

[0070] Optionally, the display module typically also includes a display and touch layer, an optical layer, a heat dissipation layer, and interfaces and drivers. Figure 5 In the illustrated example, the space between the back panel 1 and the middle frame 2 also includes components such as a reflective sheet 5, a light guide plate 6, a diffusion film 7, a brightness enhancement layer 8, and a DBEF film 9 (Dual Brightness Enhancement Film). Those skilled in the art will understand that... Figure 5 This is for illustrative purposes only and represents only a portion of the display module's structure. Those skilled in the art can add components with other functions to the display module according to actual needs, and this embodiment does not impose any restrictions on this.

[0071] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications or equivalent substitutions made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A backplane mounting assembly, characterized in that, include: The back panel (1) is provided with an outwardly protruding abutment (10); The middle frame (2) is provided with a first buckle (20); the first buckle (20) protrudes toward the back plate (1); The abutment part (10) has a contact surface (100), which is inclined. The first buckle (20) abuts against the contact surface (100) so that the middle frame (2) is centered with the back plate (1) under the guidance of the contact surface (100).

2. The backplate mounting assembly according to claim 1, characterized in that, The first buckle (20) is in surface contact with the contact surface (100).

3. The backplate mounting assembly according to claim 1, characterized in that, The contact surface (100) is inclined from the edge of the back plate (1) toward the center of the back plate (1); The first buckle (20) is inclined from the edge of the middle frame (2) toward the center away from the middle frame (2).

4. The backplate mounting assembly according to claim 3, characterized in that, The tilt angle of the first buckle (20) is smaller than the tilt angle of the contact surface (100).

5. The backplate mounting assembly according to claim 1, characterized in that, The back panel (1) is provided with a snap fastener (11); the middle frame (2) is also provided with a second buckle (21), the second buckle (21) protruding in a direction away from the back panel (1); The snap-fit ​​component (11) engages with the second snap-fit ​​(21).

6. The backplane mounting assembly according to claim 1, characterized in that, The middle frame (2) has a positioning hole (22) that penetrates the middle frame (2).

7. An installation fixture, characterized in that, For assembling the backplane mounting assembly as described in any one of claims 1 to 6, comprising: The adsorption head (3) adsorbs onto the surface of the middle frame (2) away from the first buckle (20) and presses down toward the back plate (1); The adsorption head (3) is provided with a positioning post (30), which passes through the positioning hole (22) on the middle frame (2).

8. The mounting fixture according to claim 7, characterized in that, An elastic element (31) is provided at one end of the positioning post (30) near the adsorption head (3), and the elastic element (31) elastically retracts when the positioning post (30) comes into contact with the back plate (1).

9. The mounting fixture according to claim 8, characterized in that, The adsorption head (3) is provided with a receiving cavity (32), and the elastic element (31) is disposed in the receiving cavity (32); One end of the elastic element (31) is connected to the accommodating cavity (32), and the other end is connected to the positioning post (30); The positioning post (30) extends out of the receiving cavity (32) when the elastic member (31) is in the normal state; When the elastic member (31) retracts elastically, the positioning post (30) is partially located in the accommodating cavity (32).

10. A display module, characterized in that, Includes the backplate mounting assembly as described in any one of claims 1 to 6.

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