Screen protector application device

Abstract

A screen protector application device, comprising a tray (20) and a screen protector (30), wherein an accommodating groove (201) is formed on the tray (20), and a clearance notch (202) and a pull-out opening (203) arranged opposite each other are provided on the tray (20); the screen protector (30) comprises a film body (31), a first release film (32) and a second release film (33) respectively attached to opposite sides of the film body (31), and a pull strip (34) connected to the second release film (33); the pull strip (34) extends from the clearance notch (202) toward the pull-out opening (203), and the first release film (32) faces the groove bottom of the accommodating groove (201); at least a portion of the second release film (33) protrudes from an end of the film body (31), and a protruding portion (331) of the second release film (33) is connected to the clearance notch (202); and when the pull strip (34) is subjected to a pulling force, the second release film (33) can be gradually separated relative to the film body (31) in a direction from the clearance notch (202) toward the pull-out opening (203).

Description

Film laminating device

[0001] This application claims priority to Chinese patent application No. 202420904978.X, filed on April 26, 2024, the entire contents of which are incorporated herein by reference. Technical Field

[0002] This application relates to the field of film application technology, and in particular to a film application device. Background Technology

[0003] To protect the screens of mobile devices such as smartphones and tablets from scratches during use, a screen protector is usually applied. Currently, the application device and the screen protector are relatively independent. During use, the consumer needs to position the device correctly to ensure successful application. Typically, the release liner facing away from the mobile device is used to fix the screen protector to the application device for positioning. However, the release liner facing the mobile device is prone to separating from the film body under external force (before application begins), allowing dust and other impurities to enter the edge of the adhesive side of the screen protector. This results in bubbles, white edges, and other defects after application, affecting the adhesion quality and the success rate of application. Technical issues

[0004] The main objective of this application is to provide a film application device that aims to improve the adhesion quality of film. Technical solutions

[0005] To achieve the above objectives, the film application device proposed in this application includes:

[0006] A tray having a receiving groove and having opposing clearance notches and pull-out openings; and

[0007] A screen protector includes a film body, a first release film and a second release film respectively attached to opposite sides of the film body, and a pull strip connecting the second release film. The pull strip extends from the clearance notch toward the pull opening, wherein the first release film faces the bottom of the receiving groove.

[0008] The second release film extends at least partially from the end of the film body, and the extended portion of the second release film is connected to the clearance notch. When the pull strip is subjected to tension, the second release film can gradually separate relative to the film body in the direction of the clearance notch toward the pull opening.

[0009] In one embodiment, the film application device further includes a release film connector, which is installed at the clearance notch and adheres to the protruding portion of the second release film.

[0010] In one embodiment, the release film connector is bonded to the bottom surface of the clearance notch, and the bonding strength between the release film connector and the second release film is less than the bonding strength between the release film connector and the bottom surface of the clearance notch.

[0011] In one embodiment, the release film connector is a flexible component.

[0012] In one embodiment, the film applicator further includes a protective film positioning member disposed between the first release film and the bottom wall of the receiving groove.

[0013] In one embodiment, the protective film positioning member and the first release film are bonded together.

[0014] In one embodiment, the first release film is provided with an auxiliary positioning hole, which is used to align the protective film positioning member.

[0015] In one embodiment, two auxiliary positioning holes are arranged at intervals along the extension direction of the long side of the tray, and the maximum distance between two auxiliary positioning holes is the same as the length of the protective film positioning member.

[0016] In one embodiment, the protective film positioning member extends along the extension direction of the long side of the tray and is located on the line of symmetry of the short side of the tray.

[0017] In one embodiment, the protective film positioning element is a flexible element.

[0018] In one embodiment, the inner wall of the receiving groove is provided with a limiting step for installing the screen protector, so that the screen protector is spaced apart from the bottom wall of the receiving groove, and the screen protector is snapped into the limiting step.

[0019] The limiting step is also used to support the equipment to be coated.

[0020] In one embodiment, the film application device further includes a top cover and a base, with the tray detachably mounted on the base. Beneficial effects

[0021] In the technical solution of this application, the second release film is fixed to the tray by its extended part, ensuring that the edges of the second release film and the film body are always tightly attached before the pull strip is subjected to tension (before the film is applied). This reduces the risk of bubbles, white edges, etc., appearing after the screen protector is applied due to dust and other impurities entering the edge of the film body, and helps to improve the bonding quality and the success rate of film application.

[0022] The extended portion of the second release film extends toward the clearance notch and is fixed at the clearance notch, thereby restraining the separation tendency of the second release film relative to the film body in the direction of the clearance notch toward the pull-out opening. This reliably ensures a tight fit between the second release film and the film body. Furthermore, when the pull bar is subjected to tension, the extended portion of the second release film first overcomes and separates from the clearance notch. Under the further tension of the pull bar, the second release film and the film body can gradually separate in the direction of the clearance notch toward the pull-out opening, thereby completing the film application operation in which the film body is gradually and completely applied to the screen of the device to be filmed. Attached Figure Description

[0023] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on the structures shown in these drawings without creative effort.

[0024] Figure 1 is a schematic diagram of an embodiment of the film application device provided in this application;

[0025] Figure 2 is a schematic diagram of the film application device and the equipment to be applied in Figure 1;

[0026] Figure 3 is a schematic diagram of the assembly of the tray and screen protector in Figure 1;

[0027] Figure 4 is a schematic diagram of the connection between the screen protector and the release film at point A in Figure 3;

[0028] Figure 5 is a cross-sectional view of the tray and screen protector in Figure 3;

[0029] Figure 6 is a cross-sectional view at point B in Figure 5;

[0030] Figure 7 is an exploded view of the protective film positioning component and the tray;

[0031] Figure 8 is a schematic diagram of the parameters of the protective film positioning component;

[0032] Figure 9 is a schematic diagram of the assembly of the protective film positioning component and the first release film;

[0033] Figure 10 is an explosion diagram of the protective film positioning component and the first release film in Figure 9.

[0034] Explanation of icon numbers:

[0035] 11. Top cover; 12. Base; 121. Pull-out hole;

[0036] 20. Tray; 201. Receiving slot; 202. Clearance notch; 203. Pull-out opening; 21. Chassis; 211. Alignment slot; 212. Long side; 213. Short side; 22. Limiting frame; 23. Limiting step; 231. Abutment surface; 232. Limiting surface; 233. Supporting surface; 24. Release film connector; 25. Protective film positioning component;

[0037] 30. Screen protector; 31. Film body; 32. First release film; 321. Auxiliary positioning hole; 33. Second release film; 331. Protruding part; 34. Pull strip;

[0038] 100. Equipment to be coated with film.

[0039] The realization of the purpose, functional features and advantages of this application will be further explained in conjunction with the embodiments and with reference to the accompanying drawings. Embodiments of the present invention

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

[0041] It should be noted that if the embodiments of this application involve directional indicators (such as up, down, left, right, front, back, etc.), the directional indicators are only used to explain the relative positional relationship and movement of the components in a specific posture. If the specific posture changes, the directional indicators will also change accordingly.

[0042] Furthermore, if the embodiments of this application involve descriptions such as "first" or "second," these descriptions are for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined with "first" or "second" may explicitly or implicitly include at least one of those features. Additionally, the use of "and / or" or "and / or" throughout the text includes three parallel solutions. For example, "A and / or B" includes solution A, solution B, or a solution that simultaneously satisfies A and B. Furthermore, the technical solutions of the various embodiments can be combined with each other, but this must be based on the ability of those skilled in the art to implement them. When the combination of technical solutions is contradictory or impossible to implement, it should be considered that such a combination of technical solutions does not exist and is not within the scope of protection claimed in this application.

[0043] Currently, the screen protector application device and the screen protector 30 are relatively independent. During the application process, consumers need to complete the positioning to ensure successful application. Typically, the screen protector 30 is fixed to the application device by the release film facing away from the mobile terminal device. However, the release film facing the mobile terminal device is prone to separating from the film body 31 under external force (before the application begins), causing dust and other impurities to enter the edge of the adhesive surface of the screen protector 30. This results in insufficient adhesion at the edges of the screen protector 30, leading to bubbles, white edges, etc., affecting the bonding quality and the success rate of application.

[0044] To address the aforementioned technical problems, this application proposes a film-applying device to improve the adhesion quality of the film and thereby increase the success rate of film application.

[0045] Please refer to Figures 1 to 7. In one embodiment of this application, the screen protector device includes a tray 20 and a screen protector 30. The tray 20 has a receiving groove 201 and is provided with a clearance notch 202 and a pull-out opening 203. The screen protector 30 includes a film body 31, a first release film 32 and a second release film 33 respectively attached to opposite sides of the film body 31, and a pull strip 34 connecting the second release film 33. The pull strip 34 extends from the clearance notch 202 toward the pull-out opening 203, wherein the first release film 32 faces the bottom of the receiving groove 201.

[0046] The second release film 33 extends at least partially from the end of the film body 31. The extended portion 331 of the second release film 33 is connected to the clearance notch 202. When the pull strip 34 is subjected to tension, the second release film 33 can gradually separate from the film body 31 in the direction of the clearance notch 202 toward the pull opening 203.

[0047] In the technical solution of this application, the second release film 33 is fixed to the tray 20 through its protruding part 331, ensuring that the edges of the second release film 33 and the film body 31 are always tightly attached before the pull strip 34 is subjected to tension (before the film is applied), reducing the risk of bubbles, white edges, etc. after the screen protector 30 is applied due to dust and other impurities entering the edge of the film body 31, which helps to improve the bonding quality and the success rate of film application.

[0048] The extended portion 331 of the second release film 33 extends toward the clearance notch 202 and is fixed at the clearance notch 202, thereby restraining the separation tendency of the second release film 33 relative to the film body 31 in the direction of the clearance notch 202 toward the pull-out opening 203, reliably ensuring the tight adhesion between the second release film 33 and the film body 31. Furthermore, when the pull bar 34 is subjected to tension, the extended portion 331 of the second release film 33 first overcomes and separates from the clearance notch 202. Under the further tension of the pull bar 34, the second release film 33 and the film body 31 can gradually separate in the direction of the clearance notch 202 toward the pull-out opening 203, thereby completing the film application operation in which the film body 31 is gradually and completely applied to the screen of the film application device 100.

[0049] It should be noted that the screen protector is used to apply a screen protector to the screen of the device 100 to be protected. The device 100 to be protected can be a mobile terminal device with a specific shape, such as a mobile phone or tablet. The film body 31 used is often a tempered glass film, but it can also be a hydrogel film.

[0050] The tray 20 includes a base 21 and a limiting frame 22 disposed on the base 21. The limiting frame 22 surrounds the base 21 to form the receiving groove 201, and has the avoidance notch 202 and the pull-out opening 203. The receiving groove 201 is used to install and receive the screen protector 30 and the device 100 to be applied. The avoidance notch 202 is used to avoid the protruding part 331 of the second release film 33 and part of the pull strip 34. On the one hand, it can ensure that the protruding part 331 is fixed on the avoidance notch 202, increasing the effective contact area between the protruding part 331 and the avoidance notch 202, and ensuring the reliable fixation of the second release film 33 on the tray 20. On the other hand, it can play a positioning role to a certain extent, helping to determine the installation position of the second release film 33 and even the screen protector 30 on the tray 20, and speeding up the positioning efficiency. The pull-out opening 203 allows the pull strip 34 to extend, making it convenient for consumers to apply force to the pull strip 34.

[0051] The clearance notch 202 and / or pull-out opening 203 can be formed on the entire short side 213 of the receiving groove 201 (limiting frame 22), or on a part of the short side 213 of the receiving groove 201. For example, the corresponding clearance notch 202 or pull-out opening 203 can be formed in the central area of ​​the short side 213 of the receiving groove 201.

[0052] The protruding portion 331 of the second release film 33 protrudes from the side of the film body 31 away from the pull-out opening 203 and extends towards the clearance notch 202. In order to fully utilize the tension applied to the pull strip 34, in this embodiment, the protruding portion 331 is bent and extends towards the pull-out opening 203. One end of the protruding portion 331 is connected to the pull strip 34, causing the pull strip 34 to extend in the direction from the clearance notch 202 towards the pull-out opening 203. This helps to efficiently overcome the connecting force between the protruding portion 331 of the second release film 33 and the clearance notch 202, thereby improving the film application efficiency. The connection method between the protruding portion 331 and the pull strip 34 includes, but is not limited to, integral molding, bonding, and embedding.

[0053] Referring to Figures 3 to 7, in the embodiments of this application, the film application device further includes a release film connector 24. The release film connector 24 is installed at the clearance notch 202, and the release film connector 24 adheres to the protruding portion 331 of the second release film 33. The connection is simple and convenient, which facilitates the improvement of the assembly efficiency of the tray 20 and the screen protector 30, thereby improving the production efficiency of the film application device. However, in other embodiments, the release film connector 24 and the protruding portion 331 of the second release film 33 are inserted into each other.

[0054] In the opening direction of the receiving groove 201, the distance from the release film connector 24 to the edge of the opening is greater than or equal to the distance from the first release film 32 (or the film body 31) to the edge of the opening. Thus, due to gravity, the protruding portion 331 of the second release film 33 hangs down and extends toward the release film connector 24, which helps to further cover the connection between the second release film 33 and the film body 31, and avoids the situation where the edges of the second release film 33 and the film body 31 separate due to the release film connector 24 being too high, thereby improving the bonding reliability of the second release film 33 and the film body 31.

[0055] In the embodiments of this application, the release film connector 24 is bonded to the bottom surface of the clearance notch 202. The bonding strength between the release film connector 24 and the second release film 33 is less than the bonding strength between the release film connector 24 and the bottom surface of the clearance notch 202. Thus, under the pulling force of the tension strip 34, the second release film 33 separates from the release film connector 24 first, ensuring the smoothness and reliability of the separation of the second release film 33 from the film body 31 under subsequent pulling force. This avoids the release film connector 24 moving together with the second release film 33 due to its initial separation, which would affect the separation of the second release film 33 from the film body 31. However, in other embodiments, the clearance notch 202 is provided with a slot for the release film connector 24 to be inserted, and the connection between the release film connector 24 and the clearance notch 202 is achieved through interference fit or other connection methods.

[0056] In the embodiments of this application, the release film connector 24 is a flexible component. It not only supports the protruding portion 331 of the second release film 33, but also, due to its flexibility, absorbs the force exerted on the release film connector 24 to a certain extent, reducing the risk of functional failure. Furthermore, considering that the release film connector 24 can be bonded to both the second release film 33 and the clearance notch 202, it can be configured as a double-sided foam adhesive. Of course, in other embodiments, the elastic structure of the release film connector 24 can also be made of materials such as rubber or silicone.

[0057] Please refer to Figures 5 to 10. In the embodiments of this application, the film application device further includes a protective film positioning member 25. The protective film positioning member 25 is disposed between the first release film 32 and the bottom wall of the receiving groove 201. It can support the screen protective film 30 before the film application begins, and press the screen protective film 30 onto the screen of the device 100 to be applied after the film application begins. This helps to reduce the generation of air bubbles and provides a buffer for the adhesion of the screen protective film 30 and the screen.

[0058] The protective film positioning member 25 is bonded to the first release film 32. This bonding of the protective film positioning member 25 and the first release film 32 ensures the support of the screen protector 30 while simultaneously positioning the screen protector 30 on the tray 20. Compared to existing technologies where consumers rely on positioning posts at the notch 202 to fix the first release film 32, the bottom wall of the receiving groove 201 has a larger mounting surface, allowing for the installation of protective film positioning members 25 of different sizes to meet support requirements, thus ensuring the screen protector 30 is positioned correctly on the tray 20. The installation stability on the tray 20 is improved, and the convenience of production is enhanced. Furthermore, the protective film positioning component 25 and the first release film 32 can be fixed to each other by adhesive bonding. In the production process, the installation position of the screen protector 30 on the tray 20 is confirmed by algorithms and other methods, and the pre-positioning assembly is achieved by adhesive bonding. When the consumer starts to apply the screen protector, he / she only needs to place the device to be applied 100 in the receiving slot 201 to achieve the effect of precise alignment of the screen protector in one step. This simplifies the screen protector application process for consumers, helps to reduce the difficulty of applying the screen protector, and improves the success rate and bonding quality of the screen protector application.

[0059] In addition, the connection between the second release film 33 and the clearance notch 202 further positions the screen protector 30 on the tray 20, which facilitates further improvement in the alignment accuracy between the screen protector 30 and the screen.

[0060] In the embodiments of this application, the protective film positioning member 25 is bonded to the bottom wall of the receiving groove 201, which is simple and convenient to connect, and facilitates the improvement of the assembly efficiency of the tray 20 and the protective film positioning member 25, thereby improving the production efficiency of the film application device.

[0061] In the embodiments of this application, the bottom wall of the receiving groove 201 may also be provided with an alignment groove 211 for installing the protective film positioning member 25, which helps to speed up the installation efficiency and accuracy of the protective film positioning member 25 and the screen protector 30, while reducing the risk of misalignment of the protective film positioning member 25 and the screen protector 30. Specifically, when the protective film positioning member 25 is pre-fixed to the screen protector 30, the alignment of the protective film positioning member 25 with the alignment groove 211 helps to improve the installation efficiency and accuracy of the screen protector 30. When the protective film positioning member 25 is pre-fixed in the receiving groove 201, the alignment of the protective film positioning member 25 with the alignment groove 211 helps to speed up the installation efficiency of the protective film positioning member 25. Then, by aligning the protective film positioning member 25 with the alignment point on the screen protector 30, the screen protector 30 can be quickly aligned and assembled. The alignment groove 211 is formed by the surrounding edge protruding from the chassis 21, and the alignment groove 211 can also be formed by recessing on the surface of the chassis 21 in the direction away from the top cover 11.

[0062] Please refer to Figures 9 and 10. In the embodiments of this application, the first release film 32 is provided with an auxiliary positioning hole 321. The auxiliary positioning hole 321 is used to align with the protective film positioning member 25. In this way, the auxiliary positioning hole 321 and the protective film positioning member 25 can be aligned, improving the alignment accuracy and efficiency between the screen protector 30 and the protective film positioning member 25. This, in turn, improves the assembly position of the screen protector 30 on the tray 20, ensuring accurate alignment between the screen protector 30 and the screen of the device 100 to be applied, and improving the film application quality. Of course, the alignment groove 211 on the tray 20 and the protective film positioning member 25 also help to further improve the alignment efficiency, increase the production efficiency of the film application device, and improve the film application quality.

[0063] Two auxiliary positioning holes 321 are arranged at intervals along the extending direction of the long side 212 of the tray 20. The maximum distance between two auxiliary positioning holes 321 is the same as the length of the protective film positioning member 25. That is, the two ends of the protective film positioning member 25 are aligned with the two auxiliary positioning holes 321 respectively to ensure alignment accuracy. The protective film positioning member 25 is fixed to the first release film 32, covering the two auxiliary positioning holes 321. Of course, in other embodiments, the maximum distance between two auxiliary positioning holes 321 may be less than the length of the protective film positioning member 25.

[0064] The auxiliary positioning hole 321 is a positioning hole formed on the first release film 32, and the shape of the positioning hole includes, but is not limited to, crescent shape, circle, and square.

[0065] Referring to Figure 8, in the embodiment of this application, the protective film positioning member 25 extends along the extension direction of the long side 212 of the tray 20 and is located on the symmetry line of the short side 213 of the tray 20. This provides reasonable support and positioning for the protective film positioning member 25. On the one hand, because the protective film positioning member 25 is long enough, there is a large contact area and effective length between the protective film positioning member 25 and the screen protector 30. This further improves the installation stability of the screen protector 30 within the tray 20 and reliably removes air bubbles during the application process, improving the bonding quality. On the other hand, because the protective film positioning member 25 is located on the symmetry line of the short side 213 of the tray 20, i.e., close to the middle area of ​​the screen protector 30 and the tray 20, the pressure generated during the application process can be evenly diffused outwards from the center, ensuring better bonding quality at each position. However, in other embodiments, multiple protective film positioning members 25 can be arranged, either spaced apart or arranged in a cross pattern.

[0066] The length of the protective film positioning component 25 mainly depends on the specific length of the screen protector 30 (the screen of the device 100 to be covered) in that direction. The width of the protective film positioning component 25 mainly depends on the installation stability of the screen protector 30 on the tray 20 and the overall cost. In the embodiments of this application, the length of the protective film positioning component 25 is a, 135mm≤a≤165mm, and / or the width of the protective film positioning component 25 is b, 5mm≤b≤10mm, in order to ensure the installation stability of the screen protector 30 in the tray 20 and to provide reliable support and cushioning force in the future. Specifically, the length of the protective film positioning member 25 is less than the length of the screen protector 30, and the width of the protective film positioning member 25 is also less than the width of the screen protector 30. To ensure reliable adhesion strength, support, and cushioning between the screen protector 30 and the protective film positioning member 25, the width and length of the protective film positioning member 25 can be minimized. This avoids adhesion between the adhesive surface of the protective film positioning member 25 that is too long or too wide and adjacent structures or impurities, and also avoids affecting the peeling effect due to an excessively large connecting surface, or affecting the support and cushioning effect due to an excessively small connecting surface. It also helps to save costs. The specific values ​​for the length of the protective film positioning member 25 can be 135mm, 140mm, 150mm, 155mm, 160mm, 165mm, etc. Of course, in other embodiments, the length of the protective film positioning member 25 can also be 130mm or 170mm. The specific values ​​for the width of the protective film positioning member 25 can be 5mm, 6mm, 7mm, 8mm, 9mm, 10mm, etc. Of course, in other embodiments, the length of the protective film positioning member 25 may also be 4 mm or 11 mm.

[0067] In the embodiments of this application, the protective film positioning member 25 is a flexible member, which can not only support the first release film 32, but also, due to its flexibility, absorb the force pressing against the screen protective film 30 to a certain extent, reducing the risk of functional failure. The protective film positioning member 25 can be configured as double-sided foam adhesive, considering its design that allows it to be bonded to both the first release film 32 and the tray 20. Of course, in other embodiments, the elastic structure of the protective film positioning member 25 can also be made of materials such as rubber or silicone.

[0068] Referring to Figures 2, 3, and 7, in the embodiments of this application, the inner wall of the receiving groove 201 is provided with a limiting step 23 for installing the screen protector 30, so that the screen protector 30 is spaced apart from the bottom wall of the receiving groove 201, and the screen protector 30 is snapped onto the limiting step 23; the limiting step 23 is also used to support the device 100 to be applied. It can be understood that the limiting step 23 is provided on the inner wall of the limiting frame 22, and the limiting step 23 is supported on the edge of the screen protector 30, so that there is space between the screen protector 30 and the bottom wall (base 21) of the receiving groove 201 for the installation of the protective film positioning member 25 and for buffering deformation.

[0069] The limiting steps 23 extend along the sidewall of the receiving groove 201, and multiple steps can be provided at intervals, distributed along the symmetrical line of the long side 212 and at the corner between the long side 212 and the short side 213. Each limiting step 23 includes a limiting surface 232 and an abutment surface 231 arranged at an angle, and a support surface 233 located above the limiting surface 232. The limiting surface 232 faces the sidewall of the receiving groove 201 to limit the installation of the screen protector 30; that is, the limiting surfaces 232 of each limiting step 23 collectively clamp the side of the screen protector 30. The abutment surface 231 faces the opening of the receiving groove 201 to support the screen protector 30, ensuring that the screen protector 30 and the bottom wall of the receiving groove 201 are aligned. The spacing is set; the support surface 233 faces the opening of the receiving groove 201 to support the device 100 to be applied, and the distance between the support surface 233 and the contact surface 231 is greater than or equal to the thickness of the screen protector 30, so that before the film application action is performed, there is no mutual squeezing between the screen and the screen protector 30, that is, the screen and the screen protector 30 are set with a small gap or in contact; after the film application action is performed (force is applied to the device 100 to be applied and the screen protector 30), the self-adhesive properties of the screen protector 30 are used in conjunction with the film application action to achieve the process of bonding and air release, so as to complete the film application in one go, so that the film body 31 is accurately attached to the screen of the device 100 to be applied.

[0070] Because the tray 20 is prone to deformation during use and is a consumable, in the embodiments of this application, the screen protector device also includes a top cover 11 and a base 12. The tray 20 can be detachably installed on the base 12 to facilitate the replacement of the tray 20. When the screen protector needs to be applied again, the user can choose to directly replace the tray 20 and the screen protector 30 as a whole without replacing the entire screen protector device, thereby reducing the user's screen protector application cost.

[0071] The base 12 has a pull hole 121 for connecting the pull opening 203, so that the pull strip 34 can be extended, making it convenient for consumers to use the pull strip 34 to tear off the second release film 33; the upper cover 11 can be installed on the base 12 in an openable and closable manner, that is, the upper cover 11 can be rotatably connected to one side of the base 12, or the upper cover 11 and the base 12 can be set separately. The base 12 has a receiving cavity with an opening facing the top cover 11 for receiving the tray 20, thereby protecting the tray 20 and the screen protector 30 during the transport of the screen protector device. During the screen protector application process, after the top cover 11 is closed, the tray 20, the screen protector 30, and the device 100 to be screen protectored can be protected. In addition, it is convenient for consumers to press the base 12 and the top cover 11 to make the screen and the screen protector 30 come into contact, and at the same time peel off the second release film 33 by pulling the strip 34 (or, it is convenient for consumers to peel off the second release film 33 by pulling the strip 34, and at the same time press the base 12 and the top cover 11 to make the screen and the screen protector 30 come into contact), so as to achieve quick and accurate screen protector application.

[0072] The aforementioned side can be the long side 212 or the short side 213 of the base 12, with the long side 212 and the short side 213 arranged at an angle.

[0073] The above description is merely an exemplary embodiment of this application and does not limit the patent scope of this application. Any equivalent structural transformations made based on the technical concept of this application and the contents of the specification and drawings of this application, or direct / indirect applications in other related technical fields, are included within the patent protection scope of this application.

Claims

1. A film application device, wherein, include: The tray has a receiving groove and is provided with a clearance notch and a pull-out opening that are arranged oppositely. and A screen protector includes a film body, a first release film and a second release film respectively attached to opposite sides of the film body, and a pull strip connecting the second release film. The pull strip extends from the clearance notch toward the pull opening, wherein the first release film faces the bottom of the receiving groove. The second release film extends at least partially from the end of the film body, and the extended portion of the second release film is connected to the clearance notch. When the pull strip is subjected to tension, the second release film can gradually separate relative to the film body in the direction of the clearance notch toward the pull opening.

2. The film application device as described in claim 1, wherein, The film application device further includes a release film connector, which is installed at the clearance notch and adheres to the protruding portion of the second release film.

3. The film-applying device as described in claim 2, wherein, The release film connector is bonded to the bottom surface of the clearance notch, and the bonding strength between the release film connector and the second release film is less than the bonding strength between the release film connector and the bottom surface of the clearance notch.

4. The film-applying device as described in claim 2, wherein, The release film connector is a flexible component.

5. The film application device as described in claim 1, wherein, The film application device further includes a protective film positioning component, which is disposed between the first release film and the bottom wall of the receiving groove.

6. The film-applying device as described in claim 5, wherein, The protective film positioning element is bonded to the first release film.

7. The film application device as described in claim 6, wherein, The first release film is provided with an auxiliary positioning hole, which is used to align the protective film positioning element.

8. The film application device as described in claim 7, wherein, The auxiliary positioning holes are arranged in two pairs at intervals along the long side of the tray, and the maximum distance between the two auxiliary positioning holes is the same as the length of the protective film positioning element.

9. The film application device as described in claim 5, wherein, The protective film positioning element extends along the long side of the tray and is located on the line of symmetry of the short side of the tray.

10. The film-applying device as claimed in claim 5, wherein, The protective film positioning element is a flexible element.

11. The film application device as claimed in claim 1, wherein, The inner wall of the receiving groove is provided with a limiting step for installing the screen protector, so that the screen protector is spaced apart from the bottom wall of the receiving groove, and the screen protector is snapped into the limiting step. The limiting step is also used to support the equipment to be coated.

12. The film application device as claimed in claim 1, wherein, The film application device also includes a top cover and a base, and the tray is detachably installed on the base.

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