Film-attaching auxiliary member

Abstract

The application provides a film pasting auxiliary part. After a user places the film pasting auxiliary part on a flat table, first, the protective film with the dust removal film is smoothly pushed into the dust-free cabin, and the protective film is quickly slid into the dust-free cabin. Then, the mobile device screen is placed into the dust-free cabin with the screen facing upward, and the protective film is naturally aligned with the screen. At this time, the abutting plate protruding outward on the inner wall of the auxiliary cabin is in light contact with the protective film. With the elasticity of the abutting plate, the protective film is stably locked between the mobile device and the abutting plate, and neither deviates nor is lifted. The user only needs to hold the handle of the dust removal film and slowly tear it outward along the direction parallel to the protective film. As the dust removal film is gradually separated, the protective film is stably attached to the device screen under the continuous abutting force of the abutting plate, and is not dragged by the pulled-out dust removal film. When the dust removal film is completely torn off, the device is only taken out, and the situation that the dust removal film is torn to drive the protective film to deviate in the traditional film pasting is avoided, and the attachment precision is greatly improved.

Description

Technical Field

[0001] This application relates to the field of screen protector application tools, and more particularly to a screen protector application auxiliary component. Background Technology

[0002] If mobile devices such as smartphones and tablets are dropped from a height, their screen side will face the ground. If there are foreign objects on the ground, these objects will exert force on the screen as the device hits the ground, causing excessive impact on a single point of the screen and resulting in screen breakage, which seriously affects the use of the mobile device.

[0003] The existing protection method is to attach a protective film (tempered glass or UV film) to the side of the mobile device's screen to protect the screen from damage when the mobile device is scratched or impacted by external objects.

[0004] The traditional method of applying a screen protector involves first cleaning the screen, then manually aligning it and applying the protector to the side of the mobile device's screen. However, during the application process, the protector needs to be carefully aligned with the mobile device's screen; any deviation will significantly reduce the protective effect.

[0005] The new generation of screen protector application methods uses a screen protector applicator or a cleanroom-like enclosure to help adhere the protective film to the screen of the mobile device. The applicator requires cleaning the mobile device before use, followed by the application of the screen protector. The cleanroom-like enclosure, on the other hand, has a dust removal film on one side of the protective film. During application, simply place the mobile device inside the enclosure, pull the dust removal film, and as it separates, it cleans the screen of the mobile device, simultaneously ensuring that the adhesive side of the protective film adheres to the screen of the mobile device, thus completing the application process and making screen protector application much simpler.

[0006] However, the screen protector is covered with a dust removal film during the manufacturing process. When the dust removal film is peeled off, the screen protector is in a released state (i.e., a state without force). The screen protector will be displaced by the dust removal film, which will cause the screen protector to shift relative to the screen, resulting in the screen protector not being able to fit the screen side of the mobile device well. Utility Model Content

[0007] In view of this, it is necessary to provide a film application auxiliary component to solve the above problems.

[0008] An embodiment of this application provides a film-applying auxiliary component, which has a cleanroom and an auxiliary compartment communicating with the cleanroom. The cleanroom and the auxiliary compartment are opened along a first direction, and the inner wall of the auxiliary compartment protrudes outward along a second direction to form an abutment plate. The abutment plate extends into the cleanroom. The first direction and the second direction are perpendicular to each other.

[0009] When the dust removal film is torn off, the abutting plate applies an abutting force to the protective film to fix it in place.

[0010] In at least one embodiment of this application, the abutting plate protrudes in the opposite direction of the first direction to form an abutting portion, the abutting portion being located inside the cleanroom.

[0011] In at least one embodiment of this application, the abutment plate is provided with an elastic portion, one end of which is connected to the inner wall of the auxiliary compartment and the other end is connected to the abutment portion.

[0012] In at least one embodiment of this application, the end of the elastic portion near the abutting portion is recessed inward to form an elastic groove, and the elastic groove is in communication with the cleanroom.

[0013] In at least one embodiment of this application, a pressing groove is formed between the elastic part, the abutting part and the inner wall of the auxiliary chamber, and the pressing groove is in communication with the cleanroom.

[0014] In at least one embodiment of this application, the film-applying auxiliary component has a film inlet, which is connected to the cleanroom and is opened in a direction perpendicular to the first direction.

[0015] In at least one embodiment of this application, the film-applying auxiliary component includes:

[0016] The fixed plate has the aforementioned auxiliary compartment.

[0017] A side panel is installed on one side of the fixed plate and forms the cleanroom between the side panel and the fixed plate. The membrane inlet is opened on the side panel.

[0018] In at least one embodiment of this application, the side plate has a positioning part, the inlet is located between the positioning part and the fixing plate, the positioning part is provided with a first limiting protrusion, the first limiting protrusion is located in the cleanroom to restrict the movement of the protective film in a first direction.

[0019] In at least one embodiment of this application, the film-applying auxiliary component further includes:

[0020] The second limiting protrusion has one end fixed to the fixing plate and the other end provided with a first positioning surface and a locking part. The first positioning surface is used to restrict the movement of the protective film in the first direction, and the locking part is used to fix the mobile device.

[0021] In at least one embodiment of this application, the end face of the first limiting protrusion near the second limiting protrusion is provided with a second positioning surface;

[0022] During the application of the protective film, it is sandwiched between the first positioning surface and the second positioning surface.

[0023] The film-applying auxiliary component of this embodiment will have at least the following beneficial effects:

[0024] The aforementioned screen protector application aid allows the user to place the aid on a flat surface and then smoothly push the protective film (with dust removal film) into the cleanroom. The protective film quickly slides into the connected cleanroom compartment. Next, the mobile device is placed screen-up into the cleanroom, with the protective film naturally aligned with the screen. At this point, the protruding abutment plate on the inner wall of the aid compartment is located inside the cleanroom and gently contacts the protective film. Thanks to the elasticity of the abutment plate, the protective film is securely locked between the mobile device and the abutment plate, without shifting or lifting.

[0025] Users simply need to grasp the handle of the dust removal film and slowly peel it outwards in a direction parallel to the protective film. As the dust removal film gradually detaches, the protective film, under the continuous resistance of the abutment plate, adheres firmly to the device screen and will not be dragged by the pulled-out dust removal film. Once the dust removal film is completely removed, simply remove the device to see a perfect, bubble-free, and misaligned fit.

[0026] By applying continuous pressure to the protective film through the abutment plate, the entire film application process does not require manual additional fixing, avoiding the situation in traditional film application where the dust removal film is torn and causes the protective film to deviate, thus greatly improving the application accuracy. Attached Figure Description

[0027] Figure 1 This is a structural diagram of the film application auxiliary component;

[0028] Figure 2 This is another structural diagram of the film-applying auxiliary component.

[0029] Explanation of main component symbols

[0030] 100. Film application auxiliary component; 100a. Cleanroom; 100b. Auxiliary compartment; A. First direction; 101. Abutting plate; B. Second direction; 1011. Abutting part; 1012. Elastic part; 101a. Elastic groove; 101b. Pressing groove; 100c. Film inlet; 102. Fixing plate; 103. Side plate; 1031. Positioning part; 1032. First limiting protrusion; 1033. Second limiting protrusion; 1033a. First positioning surface; 1034. Engaging part; 1032a. Second positioning surface. Detailed Implementation

[0031] The embodiments of this application will now be described with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments.

[0032] It should be noted that when a component is considered to be "connected" to another component, it can be directly connected to the other component or may also have an intervening component. When a component is considered to be "placed" on another component, it can be directly placed on the other component or may also have an intervening component. The terms "top," "bottom," "upper," "lower," "left," "right," "front," "back," and similar expressions used in this article are for illustrative purposes only.

[0033] The following detailed description of some embodiments of this application is provided in conjunction with the accompanying drawings. Unless otherwise specified, the following embodiments and features can be combined with each other.

[0034] An embodiment of this application provides a film application auxiliary component 100, which has a cleanroom 100a and an auxiliary compartment 100b communicating with the cleanroom 100a. The cleanroom 100a and the auxiliary compartment 100b are opened along a first direction A. The inner wall of the auxiliary compartment 100b protrudes outward along a second direction B to form an abutment plate 101. The abutment plate 101 partially extends into the cleanroom 100a. The first direction A and the second direction B are perpendicular to each other.

[0035] When the dust removal film is torn off, the abutting plate 101 applies an abutting force to the protective film to fix it in place.

[0036] Please refer to Figures 1-2 In this embodiment, after the user places the screen protector attachment 100 on a flat surface, they first smoothly push the protective film with the dust removal film into the cleanroom 100a. The protective film quickly slides into the cleanroom 100a connected to it. Then, the mobile device is placed screen-up into the cleanroom 100a, and the protective film naturally aligns with the screen. At this point, the abutment plate 101, protruding outward from the inner wall of the attachment 100b, is located inside the cleanroom 100a and gently contacts the protective film. Thanks to the elasticity of the abutment plate 101, the protective film is securely locked between the mobile device and the abutment plate 101, without shifting or lifting.

[0037] Next, the user simply grasps the handle of the dust removal film and slowly peels it outwards in a direction parallel to the protective film. As the dust removal film gradually detaches, the protective film, under the continuous resistance of the abutment plate 101, adheres firmly to the device screen and will not be dragged by the pulled-out dust removal film. The entire process is completed in a closed, dust-free environment: this avoids dust entry and eliminates the hassle of multiple adjustments and re-applications. Once the dust removal film is completely removed, simply remove the device to see a perfectly adhered effect without bubbles or misalignment.

[0038] By applying continuous pressure to the protective film through the abutment plate 101, the entire film application process does not require manual additional fixing, avoiding the situation in traditional film application where the dust removal film is torn and causes the protective film to deviate, thus greatly improving the application accuracy.

[0039] The cleanroom 100a is a semi-enclosed space used to place the screen of a mobile device and the protective film to be applied, keeping the application process in a clean environment and preventing dust from entering.

[0040] The auxiliary compartment 100b is directly connected to the cleanroom 100a and is opened along the first direction A (which can be understood as the up and down direction).

[0041] The abutment plate 101 is a thin plate that protrudes outward from the inner wall of the auxiliary compartment 100b along a second direction B (which can be understood as the front-to-back direction) perpendicular to the first direction A. One end of it is fixed to the inner wall of the auxiliary compartment 100b, while the other end passes through the junction of the two compartments and partially extends into the interior of the cleanroom 100a.

[0042] When the user pulls out the dust removal film, the protective film inside the cleanroom 100a will tend to move due to inertia or tension. At this time, the section of the abutment plate 101 extending into the cleanroom 100a will press against the edge of the protective film, using its elastic deformation or inherent rigidity to apply a resisting force opposite to the tension to the protective film. This force is precisely balanced with or greater than the traction force of the dust removal film on the protective film, preventing the protective film from being pulled out or shifted during the removal process. This keeps the protective film stationary and firmly attached to the screen surface, while the dust removal film can detach smoothly without affecting alignment accuracy.

[0043] In at least one embodiment of this application, the abutment plate 101 protrudes in the opposite direction of the first direction A to form an abutment portion 1011, the abutment portion 1011 being located inside the cleanroom 100a.

[0044] Please refer to Figures 1-2 In this embodiment, on the inner wall of the auxiliary compartment 100b, the abutment plate 101 not only protrudes in the second direction B, but its end also forms an inward abutment portion 1011 on the side opposite to the first direction A.

[0045] The contact part 1011 extends precisely into the interior of the cleanroom 100a to contact the surface of the protective film.

[0046] The operator pulls the dust removal membrane outward. At this time, the dust removal membrane and the protective membrane are tightly adhered, and the traction force tends to pull the protective membrane outward as well.

[0047] The contact part 1011 of the cleanroom 100a presses against the surface of the protective film, forming a reverse contact force.

[0048] This contact force is perpendicular to the direction of membrane stretching, increasing the frictional force in the vertical direction, which can instantly balance or exceed the traction force exerted by the dust removal membrane on the protective membrane.

[0049] As the dust removal film continues to be pulled out, the protective film is fixed in place and remains stationary, adhering tightly to the screen surface.

[0050] Once the dust removal film has completely detached, remove the device to see the accurately positioned and bubble-free film application effect.

[0051] The contact part 1011 prevents the protective film from shifting during the film pulling process and keeps it stable even under high tension.

[0052] The contact part 1011 can be designed with a certain degree of elasticity or adjustable structure to adapt to protective films of different thicknesses and hardness, taking into account the general needs of various machine models and film materials.

[0053] The abutment plate 101 is roughly U-shaped, and the abutment portion 1011 is a convex portion formed by the abutment plate 101 protruding to one side.

[0054] Users do not need to press or adjust; they can simply pull out the dust removal film smoothly to achieve a one-step application, greatly reducing the difficulty and time cost of applying the film.

[0055] In at least one embodiment of this application, the abutment plate 101 is provided with an elastic part 1012, one end of which is connected to the inner wall of the auxiliary compartment 100b, and the other end is connected to the abutment part 1011.

[0056] Please refer to Figures 1-2 In this embodiment, since the elastic part 1012 itself has spring-like flexibility, when the protective film touches the abutment part 1011, the elastic part 1012 will slightly bend, driving the abutment part 1011 to apply a pre-tightening force outward, and firmly clamping the protective film between the abutment part 1011 and the bulkhead.

[0057] The protective film is both fixed in place and in a state of readiness to adhere to the screen.

[0058] When a user pulls out the dust removal film, under the pulling force, the dust removal film tends to drag the protective film backward together.

[0059] At the same time, the elastic part 1012 is further compressed (or stretched, depending on the structure) and immediately generates a greater reverse restoring force, so that the abutting part 1011 firmly presses against the protective film and keeps the protective film stationary.

[0060] As the dust removal film gradually detaches, the protective film adheres to the screen surface, and the deformation of the elastic part 1012 gradually returns to its initial state or a stable adhered state.

[0061] Finally, the dust removal film is completely peeled off, and the protective film is evenly and without deviation adhered to the screen. The elastic part 1012 completes the adaptive cycle from pre-tightening to locking to returning to its original position throughout the entire process.

[0062] The presence of the elastic part 1012 enables the contact part 1011 to automatically adjust the contact pressure according to different protective film thicknesses and film pulling forces, ensuring that just the right locking force can be provided under various conditions to prevent the film from loosening or being excessively squeezed.

[0063] The elastic part 1012 absorbs the impact and vibration generated during the tearing process, reducing the local excessive stress on the abutment plate 101 and the protective film, which not only protects the film material from being scratched, but also extends the service life of the auxiliary parts themselves.

[0064] With its elastic adaptive locking, the entire film application cycle no longer relies on continuous manual pressure or resetting, resulting in a more stable and consistent bonding effect and significantly reducing the defect rate of bubbles, misalignment, and secondary bonding.

[0065] In at least one embodiment of this application, the elastic portion 1012 is recessed inward at one end near the abutting portion 1011 to form an elastic groove 101a, and the elastic groove 101a is in communication with the cleanroom 100a.

[0066] Please refer to Figures 1-2 In this embodiment, the user pushes the protective film with the dust removal film into the cleanroom 100a and slides it into the cleanroom 100a through the film inlet 100c. At this time, the elastic part 1012 maintains its initial state, and an elastic groove 101a is formed on the inner side of the end near the abutment part 1011, which is connected to the cleanroom 100a.

[0067] Place the mobile device screen into the cleanroom 100a, aligning the protective film parallel to the screen. Due to the presence of the elastic groove 101a, the contact part 1011 only needs a slight deformation to fit the film when it touches the edge of the protective film, thus achieving precise pre-tightening.

[0068] The operator begins to pull out the dust removal membrane. There is a slight adhesive force between the dust removal membrane and the protective membrane, causing a tendency for the protective membrane to be dragged.

[0069] At this time, the protective film is held in place by the abutment part 1011, and the elastic groove 101a provides a controllable deformation space for the abutment part 1011. Under the action of tension, the abutment part 1011 is recessed inward along the elastic groove 101a, instantly storing energy and forming an outward restoring force.

[0070] Since the elastic groove 101a is connected to the cleanroom 100a, the locking and bonding are finally achieved between the contact part 1011 and the screen.

[0071] The recessed structure of the elastic groove 101a forms a local "soft area" near the abutment portion 1011, which makes it easier for the abutment portion 1011 to generate moderate deformation when subjected to membrane pressure or tearing force, providing sufficient reaction force to lock the membrane without excessively thickening the elastic portion 1012 as a whole.

[0072] As the elastic part 1012 deforms along the groove, its restoring force also increases, forming a gradually increasing locking tendency, so that the protective film always receives just the right adhesion force throughout the entire film-tearing process, resulting in a smoother and bubble-free adhesion.

[0073] In at least one embodiment of this application, a pressing groove 101b is formed between the elastic part 1012, the abutting part 1011 and the inner wall of the auxiliary chamber 100b, and the pressing groove 101b is in communication with the cleanroom 100a.

[0074] Please refer to Figures 1-2 In this embodiment, after the protective film is aligned with the screen, the operator can press the contact part 1011 at a fixed point from the outside of the auxiliary compartment 100b through the pressing groove 101b.

[0075] When pressed, a finger or tool applies force through the pressing groove 101b to compress the elastic part 1012, thereby increasing or releasing the locking force of the abutment part 1011 on the protective film, so as to make a final fine adjustment or unlock.

[0076] When you start pulling out the dust removal film, if you find that the edge of the protective film is slightly off or there are residual air bubbles, you can immediately press at any point of the pressing groove 101b to temporarily open the abutment part 1011 (the elastic part 1012 is pressed), allowing the edge of the protective film to return to the correct position, and then release to allow the elastic part 1012 to reset and re-lock.

[0077] After the dust removal film is completely removed, the operator can use the pressing groove 101b to gently press around the perimeter to ensure that the edges of the protective film are tightly adhered to the perimeter of the screen without any edges lifting up.

[0078] Finally, remove the device to achieve a film application that is precisely positioned, firmly attached at the edges, and free of air bubbles.

[0079] In at least one embodiment of this application, the film-applying auxiliary component 100 has a film inlet 100c, which is connected to the cleanroom 100a, and the film inlet 100c is opened in a direction perpendicular to the first direction A.

[0080] Please refer to Figures 1-2 In this embodiment, the user inserts the protective film to be applied into the film inlet 100c of the film application aid 100. The film inlet 100c is connected to the cleanroom 100a and its opening direction is perpendicular to the first direction A.

[0081] Because the width and thickness of the inlet 100c match the protective film, the membrane material can slide smoothly and straight into the cleanroom 100a without warping or getting stuck due to improper angle.

[0082] Once the protective film is slid into place, the limiting protrusions inside the cleanroom 100a and the abutment part 1011 extending into the chamber automatically apply slight pressure to the edge of the film, completing alignment and pre-tightening to ensure that the center of the film surface and the center of the screen are tightly overlapped.

[0083] Users do not need to rotate or change direction; they can simply pull out the dust removal film along the channel in the same direction as the film inlet 100c. The tearing direction is perpendicular to the first direction A, which will not interfere with the locking of the protective film in the vertical direction and will also keep the film parallel and tightly attached to the screen.

[0084] After the dust removal membrane is completely removed, the side inlet 100c can be temporarily closed or naturally adhered. The entire adhesion process is always carried out in a closed and clean dust-free chamber 100a. After the equipment is removed, a bubble-free and offset adhesion effect is obtained.

[0085] Both membrane insertion and removal are completed within the lateral channel, eliminating the need for frequent opening or relocation of the chamber, thus maximizing the isolation of external dust and ensuring long-term cleanliness of the bonding surface.

[0086] After sliding in laterally, the limiting protrusion and the abutment part 1011 simultaneously press the edge of the film. When tearing the film laterally, the film surface is not disturbed by the pushing and pulling force and can always adhere to the screen surface, achieving a high-precision and consistent flat adhesion.

[0087] The inlet 100c is a rectangular through-hole.

[0088] In at least one embodiment of this application, the film-applying auxiliary component 100 includes:

[0089] The fixed plate 102 has the auxiliary compartment 100b provided;

[0090] Side plate 103 is installed on one side of the fixed plate 102 and forms the cleanroom 100a between the side plate 103 and the fixed plate 102. The membrane inlet 100c is opened on the side plate 103.

[0091] Please refer to Figures 1-2 In this embodiment, the fixing plate 102 serves as the base (a rectangular plate) of the auxiliary component, and an auxiliary compartment 100b space is formed on it.

[0092] The side panel 103 is vertically installed on one side of the fixed plate 102 (approximately a ring-shaped plate), together with the fixed plate 102 to enclose a semi-enclosed cleanroom 100a.

[0093] The side wall of the cleanroom 100a, namely the side plate 103, has a membrane inlet 100c that communicates with the auxiliary chamber 100b and the cleanroom 100a.

[0094] The user pushes the protective film in through the inlet 100c on the side panel 103. The film material first enters the auxiliary chamber 100b, and then slides into the cleanroom 100a through the channel.

[0095] After the protective film enters through the inlet 100c, the limiting protrusions, the abutment plate 101 (and its elastic parts 1012) on the inner wall of the cleanroom 100a immediately apply micro-pressure and position to the edge of the film, achieving initial alignment and pre-tightening between the film and the screen.

[0096] Pull the dust removal film out along the inlet 100c direction. The protective film is fixed in this process and does not shift with the pulling force, automatically adhering to the screen.

[0097] After the dust removal film is completely removed, the equipment, along with the film application aid 100, is taken out of the cleanroom 100a.

[0098] From inserting the film and aligning it to peeling and applying it, the entire process is completed within the same frame of the device, eliminating the need to change tools or move the device multiple times, resulting in smoother operation and higher efficiency.

[0099] In at least one embodiment of this application, the side plate 103 has a positioning part 1031, the inlet 100c is located between the positioning part 1031 and the fixing plate 102, the positioning part 1031 is provided with a first limiting protrusion 1032, the first limiting protrusion 1032 is located in the cleanroom 100a, so as to restrict the movement of the protective film along the first direction A.

[0100] Please refer to Figures 1-2 In this embodiment, the user pushes the protective film in through the inlet 100c on the side panel 103. The first limiting protrusion 1032 inside the cleanroom 100a contacts the film and prevents it from moving along the first direction A.

[0101] At this point, the protective film is temporarily stuck in the positioning groove between the inlet 100c and the protrusion, completing the initial alignment—the film core and the screen core are centered and aligned in the first direction A.

[0102] Because the first limiting protrusion 1032 applies a slight squeezing force to the film along the first direction A, the protective film is firmly fixed in the first direction A and will not drift back and forth on its own due to subsequent film tearing or manual operation.

[0103] Users can easily make micron-level alignment adjustments at the limiting protrusions by gently pushing or pulling the film until the film surface perfectly fits the edge of the screen.

[0104] After the protective film is locked by the first limiting protrusion 1032, the user pulls the dust removal film outward. Because the protrusion restricts the longitudinal movement of the protective film, the traction force of the dust removal film cannot move the protective film, and the film surface remains firmly attached to the screen.

[0105] After the dust removal film is completely peeled off, the protective film is firmly adhered and does not need to be secured again. The user can then remove the device along with its accessories from the cleanroom 100a to achieve a high-precision, offset-free adhesion.

[0106] The positioning groove formed by the first limiting protrusion 1032 and the inlet 100c achieves natural overlap between the membrane core and the screen core in the first direction A, without the need for additional measurement or visual alignment.

[0107] The continuous squeezing force of the first limiting protrusion 1032 on the film can eliminate the dragging force that may be generated when the dust film is torn, and effectively prevent the protective film from drifting back and forth during the bonding process.

[0108] The first limiting protrusion 1032 is a protrusion along the first direction A.

[0109] In at least one embodiment of this application, the film-applying auxiliary component 100 further includes:

[0110] The second limiting protrusion 1033 is fixed at one end to the fixing plate 102, and the other end is provided with a first positioning surface 1033a and a locking part 1034. The first positioning surface 1033a is used to restrict the movement of the protective film in the first direction A, and the locking part 1034 is used to fix the mobile device.

[0111] In at least one embodiment of this application, the end face of the first limiting protrusion 1032 near the second limiting protrusion 1033 is provided with a second positioning surface 1032a;

[0112] During the application of the protective film, the protective film is sandwiched between the first positioning surface 1033a and the second positioning surface 1032a.

[0113] Please refer to Figures 1-2 In this embodiment, the user first pushes the mobile device into the film application aid 100 until the edge of the device is clamped by the engaging part 1034 of the second limiting protrusion 1033 on the fixing plate 102, thereby firmly fixing the whole machine in the cleanroom 100a and preventing the device from sliding during subsequent operations.

[0114] The user pushes the protective film with the dust removal membrane in from the inlet 100c side. When the film reaches the predetermined depth, it encounters both the first positioning surface 1033a on the second limiting protrusion 1033 and the second positioning surface 1032a on the side plate 103.

[0115] The two opposing positioning surfaces together hold the protective film in place, preventing it from moving along the first direction A.

[0116] Under the pressure of the two positioning surfaces, the protective film automatically aligns with the center line of the screen and is subjected to a slight pre-tightening force to ensure that the film adheres tightly to the screen surface and is in a stable position.

[0117] Since the protective film is clamped by the positioning surfaces on both sides, the user can smoothly pull out the dust removal film along the same side as the film insertion direction.

[0118] The tension of the dust removal membrane cannot move the already clamped protective membrane, thus ensuring that the membrane does not drift back or forth.

[0119] After the dust removal film is completely peeled off, the protective film remains between the positioning surfaces and is firmly attached to the screen.

[0120] The user loosens the locking part 1034 and removes the device and auxiliary parts together, achieving a high-precision bonding effect in one go.

[0121] The first positioning surface 1033a (on the second limiting protrusion 1033) and the second positioning surface 1032a (on the first limiting protrusion 1032) are arranged opposite to each other, forming a double clamp on the protective film, which greatly improves the positioning accuracy along the first direction A, and the error can be controlled within the micrometer level.

[0122] With the clamping of the positioning surfaces on both sides, the protective film will not be affected by traction force during the tearing and dust removal process, eliminating the risk of the protective film being pulled away or deviating.

[0123] The above description is merely an embodiment of this application. It should be noted that those skilled in the art can make improvements without departing from the inventive concept of this application, but these improvements all fall within the protection scope of this application.

Claims

1. A film-applying auxiliary component, characterized in that, The film-applying auxiliary component has a cleanroom and an auxiliary compartment communicating with the cleanroom. The cleanroom and the auxiliary compartment are opened along a first direction. The inner wall of the auxiliary compartment protrudes outward along a second direction to form an abutment plate. The abutment plate extends into the cleanroom. The first direction and the second direction are perpendicular to each other. When the dust removal film is torn off, the abutting plate applies an abutting force to the protective film to fix it in place.

2. The film-applying auxiliary component according to claim 1, characterized in that, The abutting plate protrudes in the opposite direction of the first direction to form an abutting portion, which is located inside the cleanroom.

3. The film-applying auxiliary component according to claim 2, characterized in that, The abutment plate is provided with an elastic part, one end of which is connected to the inner wall of the auxiliary compartment, and the other end is connected to the abutment part.

4. The film-applying auxiliary component according to claim 3, characterized in that, The elastic part has an inwardly recessed elastic groove at one end near the abutment part, and the elastic groove is connected to the cleanroom.

5. The film-applying auxiliary component according to claim 3, characterized in that, A pressing groove is formed between the elastic part, the abutting part and the inner wall of the auxiliary chamber, and the pressing groove is connected to the cleanroom.

6. The film-applying auxiliary component according to claim 1, characterized in that, The film-applying auxiliary component has a film inlet, which is connected to the cleanroom and is located in a direction perpendicular to the first direction.

7. The film-applying auxiliary component according to claim 6, characterized in that, The film application auxiliary component includes: The fixed plate has the aforementioned auxiliary compartment. A side panel is installed on one side of the fixed plate and forms the cleanroom between the side panel and the fixed plate. The membrane inlet is opened on the side panel.

8. The film-applying auxiliary component according to claim 7, characterized in that, The side plate has a positioning part, the inlet is located between the positioning part and the fixing plate, and the positioning part is provided with a first limiting protrusion. The first limiting protrusion is located in the cleanroom to restrict the movement of the protective film in the first direction.

9. The film-applying auxiliary component according to claim 8, characterized in that, The film application auxiliary component also includes: The second limiting protrusion is fixed at one end to the fixing plate, and the other end is provided with a first positioning surface and a locking part. The first positioning surface is used to restrict the movement of the protective film in the first direction, and the locking part is used to fix the mobile device.

10. The film-applying auxiliary component according to claim 9, characterized in that, The end face of the first limiting protrusion near the second limiting protrusion is provided with a second positioning surface; During the application of the protective film, it is sandwiched between the first positioning surface and the second positioning surface.

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