Film pressing assembly and edge-sealing film pressing device

Abstract

This utility model relates to the field of lamination technology, and in particular to a lamination assembly and an edge-sealing lamination device. The lamination module has multiple first milled grooves. A fixing block is located below the lamination module and has multiple sets of milled grooves. Each first milled groove is correspondingly provided with a different set of milled grooves. Each set of milled grooves includes at least one second milled groove, and the size of the second milled groove is larger than that of the first milled groove along the width direction of the fixing block. Fasteners are respectively connected to the first milled grooves and the corresponding second milled grooves to fix the lamination module relative to the fixing block. In this application, the width of the second milled groove is larger than the width of the first milled groove. The lamination module can be adjusted relative to the fixing block along the width direction, thereby aligning the lamination module as closely as possible with the backlight module, thus increasing the processing quality of the backlight module. The lamination block and the fixing block are fixed together by fasteners, allowing the lamination block to stably press the backlight module, improving product yield.

Description

Technical Field

[0001] This utility model relates to the field of film pressing technology, and in particular to a film pressing assembly and an edge-sealing film pressing device. Background Technology

[0002] In the manufacturing process of smartphones, the backlight module needs to be pressed using a lamination device. The lamination device typically includes a pressing module and a fixing block. The fixing block secures the backlight module in place, while the pressing module applies pressure to the backlight module for pressing. To improve the processing quality of the backlight module, the shape and position of the pressing module must be perfectly aligned with the backlight module.

[0003] Among related technologies, the processing quality of backlight modules is relatively poor. Utility Model Content

[0004] This invention aims to at least solve one of the technical problems existing in the prior art. In view of this, embodiments of this application aim to provide a lamination assembly and an edge-sealing lamination device to improve the processing quality of backlight modules.

[0005] To achieve the above objectives, one embodiment of this application provides a film pressing assembly used in an edge-sealing film pressing device, comprising:

[0006] The pressure module has multiple first milled slots, which are arranged at intervals.

[0007] A fixing block is located below the pressure module. The fixing block is used to fix the backlight module. The fixing block has multiple milled groove groups. Each first milled groove is correspondingly provided with a different milled groove group. The milled groove group includes at least one second milled groove. The second milled groove extends along the width direction of the fixing block. Along the width direction of the fixing block, the size of the second milled groove is larger than that of the first milled groove.

[0008] Multiple fasteners are inserted into the first milled groove and the corresponding milled groove group, and the fasteners are respectively connected to the first milled groove and the corresponding second milled groove to fix the pressure module relative to the fixing block.

[0009] The pressure-film assembly according to the embodiments of this application has at least the following beneficial effects:

[0010] In the embodiment of this application, the pressing module has a first milled groove, and the fixing block has a milled groove group, including a second milled groove, the width of which is greater than the width of the first milled groove. During the process of fixing the pressing module to the fixing block, the pressing module can adjust its position relative to the fixing block along the width direction, thereby aligning the pressing module with the backlight module as closely as possible, thus increasing the processing quality of the backlight module. Furthermore, the pressing block and the fixing block are fixed together by multiple fasteners, resulting in a high connection strength between the pressing module and the fixing block. During processing, it is difficult for the pressing module to move relative to the fixing block. When the pressing module is aligned with the backlight module, the pressing block can stably press the backlight module, thereby improving product yield.

[0011] According to some embodiments of this application, at least two of the first milled grooves are located at opposite ends of the pressure module along its length.

[0012] According to some embodiments of this application, a single milling groove group includes a plurality of second milling grooves, and the second milling grooves corresponding to a single milling groove group are arranged at intervals along the length direction of the fixed block.

[0013] According to some embodiments of this application, along the length direction of the fixed block, the spacing between adjacent second milling grooves in a single milling groove group ranges from 2.4 mm to 3.6 mm.

[0014] According to some embodiments of this application, at least a portion of the structure of the first milled groove extends along the length direction of the pressing module, and the size of the first milled groove is larger than the size of the second milled groove along the length direction of the pressing module.

[0015] According to some embodiments of this application, the size of the first milled groove ranges from 14mm to 20mm along the length direction of the pressure module.

[0016] According to some embodiments of this application, the first milled groove includes a countersunk groove and a fastening groove that are interconnected. The countersunk groove is located above the fastening groove, and the groove wall of the fastening groove is formed with fastening threads. The projection area of ​​the fastening groove is located inside the projection area of ​​the countersunk groove.

[0017] According to some embodiments of this application, the pressure module has a first through hole extending through the pressure module in a vertical direction, and the fixing block has a second through hole extending through the fixing block in a vertical direction. When projected in a vertical direction, the projection area of ​​the first through hole and the projection area of ​​the second through hole at least partially overlap.

[0018] According to some embodiments of this application, the size of the second milled groove ranges from 20mm to 30mm along the width direction of the fixed block.

[0019] This application also provides an edge-sealing and film-pressing device, comprising:

[0020] frame;

[0021] The pressing assembly, as described in any of the above, is mounted on the frame and is used to press the backlight module.

[0022] Additional aspects and advantages of this application will become apparent in the following description or may be learned by practice of this application. Attached Figure Description

[0023] Figure 1 This is a schematic diagram of the structure of a pressure module assembly according to an embodiment of this application;

[0024] Figure 2 This is a top view of the structure of a pressure module assembly according to an embodiment of this application;

[0025] Figure 3 This is a top view of the pressure module according to an embodiment of this application;

[0026] Figure 4 This is a structural side view of a pressure module according to an embodiment of this application;

[0027] Figure 5 This is a top view of the structure of a fixing block according to an embodiment of this application;

[0028] Figure 6 This is a schematic diagram of the structure of a fixing block according to an embodiment of this application.

[0029] Figure label:

[0030] 100, Pressing module; 100a, First milled groove; 100b, Countersunk groove; 100c, Fastening groove; 100d, First connecting hole; 200, Fixing block; 200a, Milled groove group; 200b, Second milled groove; 200c, Second connecting hole. Detailed Implementation

[0031] The embodiments of the technical solution of this application will now be described in detail with reference to the accompanying drawings. These embodiments are only used to more clearly illustrate the technical solution of this application and are therefore merely examples, and should not be used to limit the scope of protection of this application.

[0032] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application pertains; the terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit the application; the terms “comprising” and “having”, and any variations thereof, in the specification, claims, and foregoing description of the drawings are intended to cover non-exclusive inclusion.

[0033] In the description of the embodiments of this application, the technical terms "first," "second," "third," etc., are used only to distinguish different objects and should not be construed as indicating or implying relative importance or implicitly specifying the number, specific order, or primary and secondary relationship of the indicated technical features. In the description of the embodiments of this application, "multiple" means two or more, unless otherwise explicitly defined.

[0034] In this document, the term "embodiment" means that a particular feature, structure, or characteristic described in connection with an embodiment may be included in at least one embodiment of this application. The appearance of this phrase in various places throughout the specification does not necessarily refer to the same embodiment, nor is it a separate or alternative embodiment mutually exclusive with other embodiments. It will be explicitly and implicitly understood by those skilled in the art that the embodiments described herein can be combined with other embodiments.

[0035] In the description of the embodiments in this application, the term "and / or" is merely a description of the relationship between related objects, indicating that three relationships can exist. For example, A and / or B can represent: A existing alone, A and B existing simultaneously, and B existing alone. Additionally, the character " / " in this document generally indicates that the preceding and following related objects are in an "or" relationship.

[0036] In the description of the embodiments of this application, the technical terms "top", "bottom", "upper", "lower", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing the embodiments of this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed, operated or used in a specific orientation. Therefore, they should not be construed as limitations on the embodiments of this application.

[0037] In the description of the embodiments of this application, unless otherwise expressly specified and limited, the technical terms such as "installation," "connection," "joining," and "fixing" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. For those skilled in the art, the specific meaning of the above terms in the embodiments of this application can be understood according to the specific circumstances.

[0038] In the description of the embodiments of this application, unless otherwise expressly specified and limited, the technical term "contact" should be interpreted broadly, and can be direct contact, contact through an intermediate medium layer, contact between two contacting parties with substantially no interaction force, or contact between two contacting parties with interaction force.

[0039] In related technologies, the pressing assembly includes a pressing module and a fixing block, which are bonded together using foam and double-sided adhesive. Once connected, the pressing module and fixing block are difficult to adjust. Since the backlight module is placed on a lower pressing block below the fixing block, and the backlight module's position is difficult to adjust, when the pressing module shifts relative to the backlight module, the pressing effect on the backlight module after the pressing block applies pressure is poor, thus affecting the final backlight performance.

[0040] The fixing block 200 of this application has a second milled groove 200b extending along the width direction. By moving the pressing module 100 along the width direction, the pressing module 100 is aligned with the backlight module, and then fasteners are used to pass through the first milled groove 100a and the second milled groove 200b to fix the pressing module 100 and the fixing block 200. The pressing module 100 can adjust its own position according to the position of the backlight module, thereby increasing the pressure effect of the pressing module 100 on the backlight module and improving the processing quality of the backlight module.

[0041] This application proposes to provide an edge-sealing and pressing device, including a frame and a pressing mold assembly, wherein the pressing mold assembly is mounted on the frame and is used to press the backlight module.

[0042] In one embodiment, the edge-sealing and laminating device further includes a driving assembly and a lower pressure plate assembly, both of which are mounted on a frame. The lower pressure plate assembly carries the backlight module, which is located between the lower pressure plate assembly and the laminating assembly. The driving assembly is driven to the laminating assembly and is used to drive the laminating assembly closer to or further away from the lower pressure plate assembly.

[0043] For example, the edge-sealing and pressing device also includes a suction nozzle mounted on the drive assembly for adsorbing the backlight module.

[0044] This application intends to provide a pressure film assembly; please refer to [link / reference]. Figure 1 and Figure 2The pressing assembly is used in an edge-sealing pressing device. The pressing assembly includes a pressing module 100, a fixing block 200, and multiple fasteners. The pressing module 100 has multiple first milled grooves 100a, which are arranged at intervals. The fixing block 200 is located below the pressing module 100 and is used to fix the backlight module. The fixing block 200 has multiple milled groove groups 200a. Each first milled groove 100a is correspondingly provided with a different milled groove group 200a. The milled groove group 200a includes at least one second milled groove 200b, which extends along the width direction of the fixing block 200. Along the width direction of the fixing block 200, the size of the second milled groove 200b is larger than that of the first milled groove 100a. Fasteners pass through the first milled grooves 100a and the corresponding milled groove groups 200a. The fasteners are connected to the first milled grooves 100a and the corresponding second milled grooves 200b respectively to fix the pressing module 100 relative to the fixing block 200.

[0045] For example, please refer to Figure 1 and Figure 2 The pressure module 100 and the fixing block 200 are arranged in the vertical direction, and the width direction of the fixing block 200 is orthogonal to the vertical direction.

[0046] For example, the up and down direction is as follows Figure 1 The direction indicated by the middle arrow R1, the width direction is as follows: Figure 2 The direction indicated by the middle arrow R3, the length direction is as follows Figure 2 The direction indicated by the middle arrow R2.

[0047] It should be noted that "fasteners passing through the first milled groove 100a and the corresponding milled groove group 200a" means that when the number of second milled grooves 200b in the milled groove group 200a is a single entity, the fastener passes through the first milled groove 100a and the corresponding second milled groove 200b. When the number of second milled grooves 200b in the milled groove group 200a is multiple entities, the fastener passes through the first milled groove 100a and one of the second milled grooves 200b in the corresponding milled groove group 200a.

[0048] For example, the fasteners are screws, which are threadedly connected to the first milled slot 100a and the second milled slot 200b, respectively. The number of fasteners corresponds to the number of first milled slots 100a.

[0049] For example, when projected along the vertical direction, the projection area of ​​the pressing module 100 is located within the projection area of ​​the fixing member. "The projection area of ​​the pressing module 100 is located within the projection area of ​​the fixing member" means that the projection area of ​​the pressing module 100 is completely within the projection area of ​​the fixing member, and the projection area of ​​the pressing module 100 is located within the area enclosed by the outline of the fixing member.

[0050] In the embodiment of this application, the pressing module 100 has a first milled groove 100a, and the fixing block 200 has a milled groove group 200a, which includes a second milled groove 200b. The width of the second milled groove 200b is greater than the width of the first milled groove 100a. During the process of fixing the pressing module 100 to the fixing member, the pressing module 100 can adjust its position relative to the fixing block 200 in the width direction, thereby aligning the pressing module 100 with the backlight module as much as possible and increasing the processing quality of the backlight module. Furthermore, the pressing block and the fixing block 200 are fixed together by multiple fasteners, resulting in a high connection strength between the pressing module 100 and the fixing block 200. During processing, it is difficult for the pressing module 100 to move relative to the fixing block 200. When the pressing module 100 is aligned with the backlight module, the pressing block can press the backlight module more stably, thereby improving the product yield.

[0051] In one embodiment, please refer to Figure 2 and Figure 3 At least two first milled grooves 100a are located at opposite ends of the pressure module 100 along its length.

[0052] For example, the width direction of the pressing module 100 is arranged parallel to the width direction of the fixing block 200, the length direction of the pressing module 100 is arranged parallel to the length direction of the fixing block 200, and the length direction of the pressing module 100 is orthogonal to both the vertical and width directions. The thickness direction of both the pressing module 100 and the fixing block 200 is parallel to the vertical direction.

[0053] It is understood that the shape of the pressing module 100 is roughly rectangular, the pressing module 100 has a center line extending along the width direction along the length direction, and the two opposite ends of the pressing module 100 along the length direction are located on opposite sides of the center line.

[0054] In the embodiment of this application, at least two first milled grooves 100a are located at opposite ends of the pressing module 100, which can reduce the cantilever portion between the pressing block and the fixing block 200, and the connection strength is distributed more evenly, thereby reducing the possibility of the pressing module 100 shifting relative to the fixing block 200.

[0055] It is understood that other embodiments of this application do not limit the distribution shape of the first milled groove 100a.

[0056] In one embodiment, please refer to Figure 2 , Figure 5 and Figure 6Each milled slot group 200a includes multiple second milled slots 200b, and the second milled slots 200b corresponding to the single milled slot group 200a are arranged at intervals along the length direction of the fixing block 200. The multiple second milled slots 200b allow the pressing module 100 to adjust its position along the length direction of the fixing block 200, further increasing the adjustable space of the pressing module 100, thereby enabling the pressing module 100 to be more accurately aligned with the backlight module. For example, a single milled slot group 200a includes three second milled slots 200b, and the spacing between adjacent second milled slots 200b is equal along the length direction of the fixing block 200.

[0057] In one embodiment, along the length direction of the fixed block 200, the spacing between adjacent second milling grooves 200b in a single milling groove group 200a ranges from 2.4mm to 3.6mm.

[0058] It is understandable that the spacing between adjacent second milling grooves 200b refers to the shortest distance between the projected areas of adjacent second milling grooves 200b along the vertical direction and along the length direction.

[0059] For example, along the length of the fixing block 200, the spacing between adjacent second milled grooves 200b in a single milled groove group 200a is 2.4 mm, 2.6 mm, 2.8 mm, 3.0 mm, 3.2 mm, 3.4 mm, or 3.6 mm. It is understood that the spacing between adjacent second milled grooves 200b in a single milled groove group 200a can be measured using vernier calipers under normal temperature and pressure conditions along the length of the fixing block 200.

[0060] For example, along the length direction of the fixed block 200, the spacing between two adjacent second milled grooves 200b in a single milled groove group 200a is as follows: Figure 5 As shown in the medium dimension D1.

[0061] In the scheme of this application embodiment, the spacing between two adjacent second milling grooves 200b in a single milling groove group 200a is within a suitable range, which can make the pressure module 100 have a large range of adjustment in the length direction, and can also reduce the situation where the pressure module 100 exceeds the range of the fixed block 200 in the length direction.

[0062] It is understood that other embodiments of this application do not limit the spacing between two adjacent second milling grooves 200b.

[0063] In one embodiment, please refer to Figure 2 and Figure 3At least a portion of the structure of the first milled groove 100a extends along the length direction of the pressing module 100. Along the length direction of the pressing module 100, the size of the first milled groove 100a is larger than the size of the second milled groove 200b. Because the size of the first milled groove 100a is larger than the size of the second milled groove 200b, the pressing module 100 can be adjusted relative to the fixed block 200 along its length direction to align the pressing module 100 with the backlight module. Because the size of the first milled groove 100a is larger than the size of the second milled groove 200b along the length direction of the pressing module 100, the pressing module 100 can steplessly adjust its position relative to the fixed block 200, thereby precisely controlling the position of the pressing module 100 and further improving the processing quality of the backlight module.

[0064] It is understood that other embodiments of this application are not limited to the first milled groove 100a having a larger size than the second milled groove 200b along the length of the pressing module 100. For example, along the length of the pressing module 100, the size of the first milled groove 100a is equal to the size of the second milled groove 200b.

[0065] In one embodiment, the size of the first milled groove 100a along the length of the pressing module 100 ranges from 14mm to 20mm.

[0066] For example, along the length of the pressing module 100, the dimensions of the first milled groove 100a are 14 mm, 15 mm, 16 mm, 17 mm, 18 mm, 19 mm, or 20 mm. It is understood that the dimensions of the first milled groove 100a along the length of the pressing module 100 can be obtained by measuring with a ruler under normal temperature and pressure.

[0067] For example, along the length direction of the pressing module 100, the dimensions of the first milled groove 100a are as follows: Figure 3 As shown in the medium dimension D2.

[0068] In the embodiment of this application, the length of the first milled groove 100a is within a suitable range, which allows the pressing module 100 to have a large range of adjustment in the length direction, and also reduces the possibility of the pressing module 100 exceeding the range of the fixing block 200 in the length direction.

[0069] It is understood that other embodiments of this application do not limit the size of the first milled groove 100a along the length direction of the pressing module 100.

[0070] In one embodiment, please refer to Figure 3 and Figure 4The first milled groove 100a includes a countersunk groove 100b and a fastening groove 100c that are interconnected. The countersunk groove 100b is located above the fastening groove 100c. The groove wall of the fastening groove 100c is formed with fastening threads. Projecting in the vertical direction, the projection area of ​​the fastening groove 100c is located inside the projection area of ​​the countersunk groove 100b. The countersunk groove 100b can accommodate the end of the fastener that faces away from the fastening groove 100c, which can reduce the portion of the fastener protruding from the pressure module 100 in the vertical direction, thereby reducing the interference between the fastener and other external structures. Furthermore, during assembly, it can reduce the possibility of the fastener scratching the operator.

[0071] For example, the countersunk groove 100b has an arc-shaped sidewall on the circumferential side of the fastening groove 100c, which can reduce the degree of stress concentration in the pressure module 100. Projected along the vertical direction, the projection area of ​​the fastening groove 100c is rectangular, and the projection area of ​​the countersunk groove 100b is racetrack-shaped.

[0072] It is understood that other embodiments of this application do not limit the structural shape of the first milled groove 100a. Exemplarily, the first milled groove 100a only includes a fastening groove 100c, the groove wall of which is threaded for threaded connection with a fastener.

[0073] In one embodiment, please refer to Figure 2 The pressure module 100 has a first connecting hole 100d that penetrates the pressure module 100 in the vertical direction, and the fixing block 200 has a second connecting hole 200c that penetrates the fixing block 200 in the vertical direction. When projected in the vertical direction, the projection area of ​​the first connecting hole 100d and the projection area of ​​the second connecting hole 200c at least partially overlap.

[0074] For example, the first connecting hole 100d is circular in shape, and the second connecting hole 200c is racetrack shaped.

[0075] For example, along the length of the pressure module 100, the center of the first connecting hole 100d passes through the centerline. When there are multiple first milled grooves 100a, at least two first milled grooves 100a are located on opposite sides of the first connecting hole 100d.

[0076] In the embodiment of this application, the pressing module 100 has a first connecting hole 100d, and the fixing block 200 has a second connecting hole 200c. The first connecting hole 100d and the second connecting hole 200c at least partially overlap. The first connecting hole 100d and the second connecting hole 200c allow the suction nozzle to extend from top to bottom into the side of the fixing block 200 away from the pressing module 100, thereby picking up the backlight module. This allows the backlight module to move to the next work station together with the pressing assembly under the drive of the driving assembly. The movement of the backlight module can be achieved by the driving assembly, thereby improving the automation level of the backlight module processing.

[0077] In one embodiment, the size of the second milled groove 200b ranges from 20mm to 30mm along the width direction of the fixing block 200.

[0078] For example, the dimensions of the second milled groove 200b along the width direction of the fixing block 200 are 20mm, 22mm, 24mm, 26mm, 28mm, or 30mm. It is understood that the dimensions of the second milled groove 200b along the width direction of the fixing block 200 can be obtained by measuring with a ruler under normal temperature and pressure.

[0079] For example, along the width direction of the fixing block 200, the dimensions of the second milled groove 200b are as follows: Figure 5 As shown in the medium dimension D3.

[0080] In the embodiment of this application, the size of the second milled groove 200b, within a suitable range along the width direction of the fixed block 200, can control the range of movement of the fixed block 200 along the width direction. This not only provides the pressing module 100 with a large adjustment space but also reduces the likelihood of the pressing module 100 moving outside the range of the fixed block 200.

[0081] It is understood that other embodiments of this application do not limit the size of the second milled groove 200b along the width direction of the fixed block 200.

[0082] The above embodiments are merely illustrative of the technical solutions of this application and are not intended to limit it. Although this application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features therein. These modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of this application, and all should be covered within the scope of the specification of this application. In particular, as long as there is no structural conflict, the various technical features mentioned in the embodiments can be combined in any way. This application is not limited to the specific embodiments disclosed herein, but includes all technical solutions falling within the scope of protection.

Claims

1. A film press assembly, characterized by Applications in edge-sealing and film-pressing devices include: The pressure module has multiple first milled slots, which are arranged at intervals. A fixing block is located below the pressure module. The fixing block is used to fix the backlight module. The fixing block has multiple milled groove groups. Each first milled groove is correspondingly provided with different milled groove groups. The milled groove group includes at least one second milled groove. The second milled groove extends along the width direction of the fixing block. Along the width direction of the fixing block, the size of the second milled groove is larger than that of the first milled groove. Multiple fasteners are inserted into the first milled groove and the corresponding milled groove group, and the fasteners are respectively connected to the first milled groove and the corresponding second milled groove to fix the pressure module relative to the fixing block.

2. The pressure film assembly according to claim 1, characterized in that, At least two of the first milled grooves are located at opposite ends of the pressure module along its length.

3. The pressure film assembly according to claim 1, characterized in that, Each milling groove group includes a plurality of second milling grooves, and the second milling grooves corresponding to each milling groove group are arranged at intervals along the length direction of the fixed block.

4. The pressure film assembly according to claim 3, characterized in that, Along the length direction of the fixed block, the spacing between adjacent second milling grooves in a single milling groove group ranges from 2.4 mm to 3.6 mm.

5. The film pressing assembly according to any one of claims 1 to 4, characterized in that, At least a portion of the structure of the first milled groove extends along the length direction of the pressing module, and the size of the first milled groove is larger than the size of the second milled groove along the length direction of the pressing module.

6. The pressure film assembly according to claim 5, characterized in that, Along the length of the pressure module, the size of the first milled groove ranges from 14mm to 20mm.

7. The pressure film assembly according to any one of claims 1 to 4, characterized in that, The first milled groove includes a countersunk groove and a fastening groove that are interconnected. The countersunk groove is located above the fastening groove. The groove wall of the fastening groove is formed with fastening threads. The projection area of ​​the fastening groove is located inside the projection area of ​​the countersunk groove.

8. The pressure film assembly according to any one of claims 1 to 4, characterized in that, The pressure module has a first through hole extending through the pressure module in the vertical direction, and the fixing block has a second through hole extending through the fixing block in the vertical direction. When projected in the vertical direction, the projection area of ​​the first through hole and the projection area of ​​the second through hole at least partially overlap.

9. The pressure film assembly according to any one of claims 1 to 4, characterized in that, Along the width direction of the fixed block, the size of the second milled groove ranges from 20mm to 30mm.

10. A sealing and pressing device, characterized in that, include: frame; The lamination assembly as described in any one of claims 1 to 9 is mounted on the frame and is used to press the backlight module.

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