Film pasting apparatus and film pasting method

Abstract

The application relates to a film pasting device and a film pasting method. The film pasting device comprises a roller assembly, a first driving roller, a second driving roller and a third driving roller arranged along a first direction; the first driving roller is used for arranging a light shielding film group and driving the light shielding film group to move forward along the first direction; the second driving roller is used for winding a release film to separate the release film from an adhesive layer; the third driving roller is used for winding a protective film to recycle the protective film; a moving platform is arranged on one side of the roller assembly along a second direction and can move along the second direction relative to the roller assembly; the moving platform is used for carrying a film pasting piece; a pressing assembly is arranged between the second driving roller and the third driving roller and is used for pressing the light shielding film on the film pasting piece; and a positioning system is used for acquiring position information of the light shielding film and the film pasting piece and is in communication connection with the roller assembly and the moving platform. The application can improve the alignment accuracy and the pasting efficiency.

Description

Technical Field

[0001] This application relates to the field of liquid crystal display manufacturing technology, and in particular to a film application device and a film application method. Background Technology

[0002] Liquid Crystal on Silicon (LCOS) is a novel reflective micro-liquid crystal display technology. LCOS displays achieve their display effect by reflecting light through a chip and modulating the grayscale of the light source. A light-shielding tape is applied to the glass surface of the LCOS display to block light leakage and ensure a clear projection. How to apply the light-shielding tape to the glass surface and ensure a tight bond between the tape and the glass is crucial in the manufacturing of LCOS displays. In related technologies, manually applying the light-shielding tape to the glass is not only inefficient but also results in poor adhesion. Summary of the Invention

[0003] Therefore, it is necessary to provide a film application device and a film application method to address at least one of the above-mentioned problems.

[0004] In a first aspect, embodiments of this application provide a film-applying device for applying a light-shielding film from a light-shielding film assembly to a film-to-be-applied object, wherein the light-shielding film assembly includes a release film, an adhesive layer, a light-shielding film, and a protective film stacked together.

[0005] The film application device includes:

[0006] The roller assembly includes a first drive roller, a second drive roller, and a third drive roller arranged along a first direction; the first drive roller is used to stretch the light-shielding film assembly and drive the light-shielding film assembly forward along the first direction; the second drive roller is used to wind the release film to separate the release film from the adhesive layer; and the third drive roller is used to wind the protective film to recycle the protective film.

[0007] A movable platform is disposed on one side of the roller assembly along the second direction and is movable relative to the roller assembly along the second direction; the movable platform is used to support the film to be applied; the second direction intersects the first direction;

[0008] A pressing assembly is disposed between the second drive roller and the third drive roller, and is used to press the light-shielding film onto the film to be applied;

[0009] The positioning system is used to acquire the position information of the light-blocking film and the film to be applied, and is communicatively connected to the roller assembly and the moving platform.

[0010] In one embodiment, the pressing assembly includes a plurality of pressing rollers spaced apart along the first direction;

[0011] The pressing roller assembly includes two pairs of pressing rollers spaced apart along a third direction; each pair of pressing rollers includes two rollers spaced apart along a second direction, and the light-shielding film assembly is used to press between the two rollers; both the first direction and the second direction intersect with the third direction.

[0012] In one embodiment, an anti-sticking layer is provided on the outer circumferential surface of the two rollers of the pressing roller pair that is closer to the moving platform.

[0013] In one embodiment, the pressing assembly includes a scraper configured to move linearly along the first direction and apply a pressing force to the light-shielding film assembly.

[0014] In one embodiment, the movable platform has a bearing surface on the side near the roller assembly, and the angle between the plane where the scraper is located and the bearing surface is between 45° and 60°.

[0015] In one embodiment, the film-applying device further includes a guiding assembly disposed between the pressing assembly and the third drive roller;

[0016] The guide assembly includes an upper clamp and a lower clamp disposed opposite to each other along the second direction, and the protective film is sandwiched between the upper clamp and the lower clamp.

[0017] In one embodiment, the roller assembly further includes a guide wheel located at the peeling point between the release film and the adhesive layer, and for applying the peeled release film.

[0018] In one embodiment, the positioning system includes:

[0019] A first image locator is used to obtain the position information of the light-shielding film;

[0020] The second image locator is used to acquire the position information of the moving platform and / or the film to be applied;

[0021] The controller is communicatively connected to the first image locator, the second image locator, the roller assembly, and the mobile platform.

[0022] In a second aspect, embodiments of this application provide a film application method, applied to the film application device described in the first aspect embodiment, the film application method comprising:

[0023] Place the part to be coated on the mobile platform;

[0024] The first drive roller, the second drive roller, and the third drive roller are activated to advance the light-shielding film assembly along the first direction and peel off the release film.

[0025] The positioning system acquires the position information of the light-shielding film and the film to be applied, and adjusts the roller assembly and the moving platform to align the film to be applied and the light-shielding film.

[0026] The pressing assembly is activated to press the light-shielding film onto the film to be applied.

[0027] In one embodiment, the step of activating the pressing assembly to press the light-shielding film onto the film to be applied includes:

[0028] Press the scraper down and move it in the opposite direction to the forward direction of the light-shielding film assembly until the pressing is completed;

[0029] The scraper is lifted and moved along the forward direction of the light-shielding film assembly until it is reset.

[0030] The film-applying equipment and method provided in this application embodiment involve placing the workpiece to be covered on a movable platform during film application. Then, a first drive roller, a second drive roller, and a third drive roller rotate. The first drive roller primarily drives the light-blocking film assembly forward in a first direction. The second drive roller winds the release film and separates it from the adhesive layer. The third drive roller winds the protective film and retrieves it. Next, a positioning system acquires the position information of the light-blocking film and the workpiece to be covered, and adjusts the roller assembly and the movable platform to align the workpiece and the light-blocking film. Finally, a pressing assembly presses the light-blocking film onto the workpiece. Thus, the same equipment can be used for removing and retrieving the release film, aligning the light-blocking film and the workpiece, applying the light-blocking film, and retrieving the protective film. Compared to manual application, this method helps improve alignment accuracy and bonding efficiency. Attached Figure Description

[0031] To more clearly illustrate the technical solutions in the embodiments of this application or the conventional technology, the drawings used in the description of the embodiments or the conventional technology 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 these drawings without creative effort.

[0032] Figure 1 This is a schematic diagram of a film application device provided in an application scenario according to an embodiment of this application.

[0033] Figure 2 for Figure 1 A schematic diagram of the cross-sectional structure of the light-shielding film assembly.

[0034] Figure 3 for Figure 1 Schematic diagram of the intermediate pressure turbine assembly.

[0035] Figure 4 for Figure 1 A schematic diagram showing the part to be coated and the light-blocking film after they are bonded together.

[0036] Figure 5 This is a schematic diagram of a film application device provided in one embodiment of this application in another application scenario.

[0037] Figure 6 for Figure 5 The diagram shows the arrangement of the light-shielding film in the light-shielding film group in the application scenario shown.

[0038] Figure 7 This is a schematic diagram of the cross-sectional structure of an LCOS liquid crystal cell before film application, provided in an embodiment of this application.

[0039] Figure 8 for Figure 7 The diagram shows the cross-sectional structure of the LCOS liquid crystal cell after the film is applied.

[0040] Figure 9 for Figure 8 A top-down view.

[0041] Figure 10 This is a schematic diagram of glass after film application, provided in one embodiment of this application.

[0042] Figure 11 for Figure 10 The diagram shows the structure after crystallization.

[0043] Figure 12 This is a schematic flowchart of a film application method provided in an embodiment of this application.

[0044] Explanation of reference numerals in the attached figures:

[0045] 1. Film application equipment; 11. Roller assembly; 111. First drive roller; 112. Second drive roller; 113. Third drive roller; 114. Guide wheel; 12. Moving platform; 12a. Bearing surface; 13. Pressing assembly; 131. Pressing roller group; 1311. Pressing roller pair; 1131a. Roller; 1131b. Anti-adhesive layer; 132. Scraper; 14. Positioning system; 141. First image locator; 142. Second image locator; 143. Controller; 15. Guide assembly; 151. Upper clamp; 152. Lower clamp; 16. Moving mechanism;

[0046] 2. Light-blocking film assembly; 21. Release film; 22. Adhesive layer; 23. Light-blocking film; 24. Protective film;

[0047] 3. LCOS liquid crystal cell; 31. Substrate; 32. Flexible circuit board; 33. Chip; 34. Glass; 35. Protective adhesive; 36. Sealing adhesive;

[0048] 4. Parts to be coated; 41. Alignment marks. Detailed Implementation

[0049] To facilitate understanding of this application, a more complete description will be provided below with reference to the accompanying drawings, which illustrate embodiments of the present application. However, the present application can be implemented in many different forms and is not limited to the embodiments described herein. Rather, these embodiments are provided so that the disclosure of this application will be thorough and complete.

[0050] 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 belongs. The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the application.

[0051] Spatial relation terms such as “below,” “under,” “below,” “under,” “above,” “above,” etc., are used herein to describe the relationship between one element or feature shown in the figure and other elements or features. It should be understood that, in addition to the orientation shown in the figure, spatial relation terms also include different orientations of the device in use and operation. For example, if the device in the figure is flipped, the element or feature described as “below,” “under,” or “below” will be oriented “above” the other element or feature. Therefore, the exemplary terms “below” and “under” can include both above and below orientations. Furthermore, the device may also include other orientations (e.g., rotated 90 degrees or other orientations), and the spatial descriptive terms used herein will be interpreted accordingly.

[0052] When used herein, the singular forms of “a,” “an,” and “the” may also include the plural forms unless the context clearly indicates otherwise. It should also be understood that the terms “comprising / including” or “having,” etc., specify the presence of the stated features, wholes, steps, operations, components, parts, or combinations thereof, but do not preclude the possibility of the presence or addition of one or more other features, wholes, steps, operations, components, parts, or combinations thereof. Meanwhile, in this specification, the term “and / or” includes any and all combinations of the associated listed items.

[0053] Firstly, referring to Figures 1-6As shown, this application embodiment provides a film application device 1, which is used to attach the light-shielding film 23 from the light-shielding film assembly 2 to the film-to-be-applied piece 4, wherein the film-to-be-applied piece 4 can be a whole glass surface or a single-cell glass. Figure 2 As shown, the light-shielding film assembly 2 includes a release film 21, an adhesive layer 22, a light-shielding film 23, and a protective film 24 stacked together, wherein the protective film 24 may be a back film.

[0054] Specifically, the film application equipment 1 includes a roller assembly 11, a movable platform 12, a pressing assembly 13, and a positioning system 14. The roller assembly 11 includes a first drive roller 111, a second drive roller 112, and a third drive roller 113 arranged along a first direction X. For example, as... Figure 1 As shown, the first drive roller 111, the second drive roller 112, and the third drive roller 113 are arranged sequentially from left to right. The first drive roller 111 is used to stretch the light-shielding film assembly 2 and drive the light-shielding film assembly 2 forward along the first direction X. The second drive roller 112 is used to wind the release film 21 to separate the release film 21 from the adhesive layer 22. In other words, the second drive roller 112 is connected to one end of the release film 21, and during the rotation of the second drive roller 112, the release film 21 is wound onto the second drive roller 112, while the release film 21 separates from the adhesive layer 22. The third drive roller 113 is used to wind the protective film 24 to recover the protective film 24. In other words, the third drive roller 113 is connected to one end of the protective film 24, and during the rotation of the third drive roller 113, the protective film 24 is wound onto the third drive roller 113, realizing the recovery of the protective film 24.

[0055] Further, the movable platform 12 is disposed on one side of the roller assembly 11 along the second direction Y, and can move relative to the roller assembly 11 along the second direction Y; the movable platform 12 is used to carry the film to be applied 4; the second direction Y intersects the first direction X. Exemplarily, the movable platform 12 is disposed below the roller assembly 11, and the movable platform 12 can move closer to or further away from the roller assembly 11 in the second direction Y. The pressing assembly 13 is disposed between the second drive roller 112 and the third drive roller 113, and is used to press the light-shielding film 23 onto the film to be applied 4. The positioning system 14 is used to acquire the position information of the light-shielding film 23 and the film to be applied 4, and is communicatively connected to the roller assembly 11 and the movable platform 12. Exemplarily, after acquiring the position information of the light-shielding film 23 and the film to be applied 4, the positioning system 14 compares them; if there is a deviation in the position information, it controls the roller assembly 11 and / or the movable platform 12 to move until the light-shielding film 23 and the film to be applied 4 are aligned. It is understandable that positioning system 14 could be a visual positioning system.

[0056] It should be noted that after the light-shielding film assembly 2 passes through the second drive roller 112, the release film 21 on the light-shielding film assembly 2 is peeled off, exposing the adhesive layer 22 beneath the light-shielding film 23. By placing the pressing assembly 13 between the second drive roller 112 and the third drive roller 113, the light-shielding film 23 can be pressed and attached to the film to be attached 4 immediately after the release film 21 is peeled off.

[0057] It is understandable that the linear velocities of the first drive roller 111, the second drive roller 112, and the third drive roller 113 are the same or approximately the same. That is, the forward speed of the light-shielding film group 2, the peeling speed (i.e., the recycling speed) of the release film 21, and the recycling speed of the protective film 24 are all the same or approximately the same.

[0058] The film-applying device 1 provided in this application embodiment, during film application, places the workpiece 4 to be applied on the movable platform 12. Then, the first drive roller 111, the second drive roller 112, and the third drive roller 113 rotate. The first drive roller 111 mainly drives the light-shielding film assembly 2 forward along the first direction X. The second drive roller 112 winds the release film 21 and separates the release film 21 from the adhesive layer 22. The third drive roller 113 winds the protective film 24 and retracts the protective film 24. Next, the positioning system 14 obtains the position information of the light-shielding film 23 and the workpiece 4 to be applied, and adjusts the roller assembly 11 and the movable platform 12 to align the workpiece 4 to be applied and the light-shielding film 23. Then, the pressing assembly 13 presses the light-shielding film 23 onto the workpiece 4 to be applied. In this way, the same equipment can be used to remove and recycle the release film 21, align the light-shielding film 23 and the film to be applied 4, apply the light-shielding film 23 and recycle the protective film 24, which helps to improve the alignment accuracy and bonding efficiency compared to manual application.

[0059] It should be noted that, referring to Figure 7 As shown, the LCOS liquid crystal cell 3 includes a substrate 31 and a flexible circuit board 32, a chip 33, a glass 34, a protective adhesive 35, and a sealing adhesive 36 disposed on the substrate 31. The component to be coated 4 can be the glass 34 of the LCOS liquid crystal cell 3. The structure after the light-shielding film 23 is attached is as follows. Figure 8 and Figure 9 As shown, the light-shielding film 23 exposes the display (AA) area and covers the area surrounding the display area.

[0060] It is understandable that, such as Figure 8 and Figure 9 As shown, after completing the die bonding, wire bonding, dispensing and curing of protective adhesive 35, and dispensing and curing of conductive adhesive in the LCOS liquid crystal cell 3, the light-shielding film 23 can be applied. (Refer to...) Figure 10 and Figure 11As shown, after applying the light-shielding film 23, steps such as die bonding, wire bonding, application and curing of protective adhesive 35, and application and curing of conductive adhesive can also be performed.

[0061] In one embodiment, the pressing assembly 13 includes a plurality of pressing rollers 131 arranged at intervals along a first direction X. For example... Figure 3 As shown, the pressing roller assembly 131 includes two pressing roller pairs 1311 spaced apart along the third direction Z. In other words, the two pressing roller pairs 1311 together constitute a pressing roller assembly 131, and the two pressing roller pairs 1311 are arranged opposite to each other along the third direction Z. The pressing roller pairs 1311 include two rollers 1131a spaced apart along the second direction Y. The light-shielding film assembly 2 is used to press between the two rollers 1131a. Both the first direction X and the second direction Y intersect with the third direction Z.

[0062] For example, the first direction X corresponds to the length direction of the light-shielding film group 2, the second direction Y corresponds to the thickness direction of the light-shielding film group 2, and the third direction Z corresponds to the width direction of the light-shielding film group 2.

[0063] The above setup is equivalent to using the pressing roller assembly 131 to guide the light-shielding film assembly 2 after the release film 21 is peeled off, so that the plane on which the light-shielding film assembly 2 is located after the release film 21 is peeled off remains stable and can be kept on a predetermined horizontal plane, making it easier to attach the light-shielding film 23 relatively flat onto the film to be attached 4.

[0064] In one example, the pressing assembly 13 includes two pressing roller sets 131 arranged at intervals along a first direction X, the two pressing roller sets 131 defining a pressing area, that is, the pressing area is located between the two pressing roller sets 131.

[0065] In one embodiment, an anti-stick layer 1131b is provided on the outer peripheral surface of the roller 1131a closer to the movable platform 12 among the two rollers 1131a of the same pressing roller pair 1311; in other words, an anti-stick layer 1131b is provided on the outer peripheral surface of the lower roller 1131a among the two rollers 1131a of the same pressing roller pair 1311. Exemplarily, the material of the anti-stick layer 1131b can be the same as the material of the release film 21.

[0066] It should be noted that the adhesive layer 22 is located below the light-shielding film 23. In the two rollers 1131a of the same pressing roller pair 1311, the upper roller 1131a is located above the light-shielding film 23, and the lower roller 1131a is located below the adhesive layer 22. Therefore, by providing an anti-adhesion layer 1131b on the lower roller 1131a, the adhesive layer 22 can be prevented from adhering to the lower roller 1131a.

[0067] In one example, roller 1131a is a roller 1131a with a high coefficient of friction, i.e., a high coefficient of friction roller 1131a.

[0068] In one embodiment, the pressing assembly 13 includes a scraper 132 configured to move linearly along a first direction X and apply a pressing force to the light-shielding film assembly 2. This allows the light-shielding film 23 to be uniformly adhered to the film to be applied 4, improving the adhesion stability between the light-shielding film 23 and the film to be applied 4.

[0069] In one example, the squeegee 132 is configured to move linearly in the opposite direction to the forward direction of the light-shielding film assembly 2, and apply a pressing force to the light-shielding film assembly 2 in the process. In this way, the squeegee 132 can expel air between the adhesive layer 22 and the film to be applied 4 during the movement, preventing air bubbles from forming between the adhesive layer 22 and the film to be applied 4 after bonding.

[0070] In one example, the scraper 132 is configured to move linearly along the forward direction of the light-shielding film assembly 2. Thus, after bonding, the scraper 132 can return to its pre-bonding position for easy re-bonding. In another example, the scraper 132 is configured to move closer to or further away from the light-shielding film assembly 2 along a second direction Y. Specifically, before bonding, the scraper 132 moves downward in the second direction Y, contacts the light-shielding film assembly 2, and applies a downward force to it. Then, the scraper 132 moves linearly in the opposite direction to the forward direction of the light-shielding film assembly 2. After bonding, the scraper 132 moves upward in the second direction Y, disengages from the light-shielding film assembly 2, and then moves linearly along the forward direction of the light-shielding film assembly 2 to achieve resetting.

[0071] It is understood that the scraper 132 can be mounted on the first motion mechanism (not shown in the figure), and the first motion mechanism drives the scraper 132 to move. The first motion mechanism may include a first horizontal motion module and a first vertical motion module. The specific structure of the first motion mechanism is not specifically limited in the embodiments of this application.

[0072] In one embodiment, the movable platform 12 has a bearing surface 12a on the side near the roller assembly 11, and the angle between the plane of the scraper 132 and the bearing surface 12a is between 45° and 60°. It should be noted that during the pressing process, the bearing surface 12a, the upper surface of the film to be applied 4, and the upper surface of the light-shielding film assembly 2 are all parallel. In other words, as... Figure 1 As shown, the angle α between the plane where the scraper 132 is located and the upper surface of the light-shielding film group 2 is between 45° and 60°. For example, the angle α can be 45°, 50°, 55°, 60° or between any two of the above values.

[0073] In this way, during the pressing process, it is not only convenient for the scraper 132 to apply pressing force to the light-shielding film 23, but also convenient for the scraper 132 to move forward with less resistance.

[0074] In one embodiment, the film-applying device 1 further includes a guide assembly 15, which is disposed between the pressing assembly 13 and the third drive roller 113. The guide assembly 15 includes an upper clamping body 151 and a lower clamping body 152 arranged opposite each other along the second direction Y, and the protective film 24 is clamped between the upper clamping body 151 and the lower clamping body 152. By providing the guide assembly 15, the light-shielding film assembly 2 can be guided, so that the plane on which the light-shielding film assembly 2 is located remains stable and can be kept on a predetermined horizontal plane, which facilitates the neat winding of the protective film 24 onto the third drive roller 113.

[0075] It is understandable that when the protective film 24 is sandwiched between the upper clamp 151 and the lower clamp 152, the protective film 24 can also move between the upper clamp 151 and the lower clamp 152.

[0076] In one embodiment, the roller assembly 11 further includes a guide wheel 114, which is located at the peeling point between the release film 21 and the adhesive layer 22 and is used to apply the peeled release film 21.

[0077] It should be noted that the guide wheel 114 is positioned between the paths of the first drive roller 111 and the second drive roller 112, and the guide wheel 114 is located at the peeling point between the release film 21 and the adhesive layer 22. By setting the guide wheel 114, it is convenient to set the peeling position between the release film 21 and the adhesive layer 22, and it can also guide the peeled release film 21, making it easier for the second drive roller 112 to wind and recycle the release film 21.

[0078] In one embodiment, the positioning system 14 includes a first image locator 141, a second image locator 142, and a controller 143. The first image locator 141 is used to acquire the position information of the light-shielding film 23, and the second image locator 142 is used to acquire the position information of the moving platform 12 and / or the film-to-be-applied piece 4. The controller 143 is communicatively connected to the first image locator 141, the second image locator 142, the roller assembly 11, and the moving platform 12. Exemplarily, the first image locator 141 and the second image locator 142 can be charge-coupled devices (CCDs).

[0079] It should be noted that the controller 143 can compare the position information obtained by the first image locator 141 and the position information obtained by the second image locator 142 to determine whether the light-shielding film 23 and the film to be applied 4 are successfully aligned. If the light-shielding film 23 and the film to be applied 4 are not aligned, the roller assembly 11 and the moving platform 12 are adjusted. Specifically, if there is a deviation between the light-shielding film 23 and the film to be applied 4 in the first direction X, the roller assembly 11 (first drive roller 111, second drive roller 112, and third drive roller 113) is controlled to rotate for adjustment. If there is a deviation between the light-shielding film 23 and the film to be applied 4 in the second direction Y, the moving platform 12 is controlled to move in the second direction Y. If there is a deviation between the light-shielding film 23 and the film to be applied 4 in the third direction Z, the moving platform 12 is controlled to move in the third direction Z.

[0080] In one example, the position information of the light-shielding film 23 includes the coordinates of the light-shielding film 23 in the first direction X, the second direction Y, and the third direction Z, as well as the tilt angle of the plane on which the light-shielding film 23 is located. The position information of the moving platform 12 includes the coordinates of the moving platform 12 in the first direction X, the second direction Y, and the third direction Z, as well as the tilt angle of the plane on which the moving platform 12 is located (such as the bearing surface 12a). The position information of the film-to-be-applied piece 4 includes the coordinates of the film-to-be-applied piece 4 in the first direction X, the second direction Y, and the third direction Z, as well as the tilt angle of the upper surface of the film-to-be-applied piece 4.

[0081] In one embodiment, the movable stage 12 can move not only relative to the roller assembly 11 in the second direction Y, but also relative to the roller assembly 11 in the third direction Z. This facilitates the alignment of the film to be applied 4 and the light-shielding film 23 on the movable stage 12.

[0082] It is understood that the movable platform 12 can be mounted on the second motion mechanism (not shown in the figure), and the second motion mechanism drives the movable platform 12 to move. The second motion mechanism may include a second horizontal motion module and a second vertical motion module. The specific structure of the second motion mechanism is not specifically limited in the embodiments of this application.

[0083] In one embodiment, the carrier surface 12a of the movable stage 12 is provided with vacuum adsorption holes (not shown in the figure), and the film to be applied 4 is adsorbed onto the carrier surface 12a.

[0084] In one embodiment, the film application device 1 further includes a moving mechanism 16, and a second image locator 142 is disposed on the moving mechanism 16. Thus, the moving mechanism 16 can drive the second image locator 142 to move, facilitating the positioning of the film-applied component 4 by the second image locator 142. It is understood that the moving mechanism 16 can move along a first direction X and a third direction Z.

[0085] It should be noted that, in one example, the reference... Figure 1 and Figure 4 As shown, the component 4 to be coated is a single sheet of glass. Alignment marks 41 can be provided on the component 4 to facilitate the second image locator 142 in obtaining the position information of the component 4. In another example, refer to... Figure 5 and Figure 6 As shown, the component 4 to be laminated is a single-cell glass. During single-cell lamination, the light-shielding film 23 patterns in the light-shielding film group 2 are arranged according to a preset spacing. In a specific embodiment, the distance between adjacent light-shielding film 23 patterns is greater than three times the dimension of the light-shielding film 23 pattern along the first direction X. Figure 6 In this configuration, the distance between adjacent light-shielding film 23 patterns is S, and the dimension of the light-shielding film 23 pattern along the first direction X is W. This prevents interference with adjacent light-shielding films 23 when one light-shielding film 23 is pressed together.

[0086] Secondly, such as Figure 12 As shown, this application provides a film application method, applied to the film application device 1 of the first aspect embodiment, the film application method including the following steps:

[0087] S100: Place the film to be applied 4 on the movable stage 12. For example, the movable stage 12 adsorbs the film to be applied 4 onto the bearing surface 12a by vacuum adsorption.

[0088] S200: Start the first drive roller 111, the second drive roller 112 and the third drive roller 113 to make the light-shielding film group 2 move forward in the first direction X and peel off the release film 21.

[0089] S300: The positioning system 14 acquires the position information of the light-shielding film 23 and the film-to-be-applied piece 4, and adjusts the roller assembly 11 and the moving platform 12 to align the film-to-be-applied piece 4 and the light-shielding film 23.

[0090] S400: Start the pressing assembly 13 to press the light-shielding film 23 onto the film to be applied to the film 4.

[0091] The film application method provided in this application involves placing the film-to-be-applied piece 4 on a movable platform 12. Then, the first drive roller 111, the second drive roller 112, and the third drive roller 113 rotate. The first drive roller 111 primarily drives the light-shielding film assembly 2 forward along the first direction X. The second drive roller 112 winds the release film 21 and separates it from the adhesive layer 22. The third drive roller 113 winds the protective film 24 and retracts it. Next, the positioning system 14 acquires the position information of the light-shielding film 23 and the film-to-be-applied piece 4, and adjusts the roller assembly 11 and the movable platform 12 to align the film-to-be-applied piece 4 and the light-shielding film 23. Finally, the pressing assembly 13 presses the light-shielding film 23 onto the film-to-be-applied piece 4. In this way, the same equipment can be used to remove and recycle the release film 21, align the light-blocking film 23 and the film to be applied 4, apply the light-blocking film 23 and recycle the protective film 24. Compared with manual application, the application of the light-blocking film 23 can be fully automated, which helps to improve the alignment accuracy, application accuracy and application efficiency.

[0092] In one embodiment, S400: The pressing assembly 13 is activated to press the light-shielding film 23 onto the film to be applied to the film 4, specifically including the following steps:

[0093] S410: Press down the scraper 132 and move it in the opposite direction to the forward direction of the light-shielding film group 2 until the pressing is completed. Specifically, the scraper 132 moves downward in the second direction Y, contacts the light-shielding film group 2, and applies a downward force to the light-shielding film group 2. Then the scraper 132 moves in a straight line in the opposite direction to the forward direction of the light-shielding film group 2.

[0094] S420: Lift the scraper 132 and move it along the forward direction of the light-shielding film group 2 until it is reset. Specifically, move the scraper 132 upward in the second direction Y to disengage from the light-shielding film group 2, and then move the scraper 132 in a straight line along the forward direction of the light-shielding film group 2 to achieve reset.

[0095] In this embodiment, a scraper 132 is used to scrape and press the light-shielding film assembly 2 to reduce or avoid air bubbles generated on the surface of the film to be applied 4 during the application of the light-shielding film 23, thereby ensuring the integrity and flatness of the application of the light-shielding film 23.

[0096] In one embodiment, in S300, while aligning the film to be applied 4 and the light-shielding film 23, the distance between the adhesive layer 22 of the light-shielding film group 2 and the film to be applied 4 in the second direction Y is 0.5 mm.

[0097] In the description of this specification, the references to terms such as "some embodiments," "other embodiments," "ideal embodiments," etc., refer to specific features, structures, materials, or characteristics described in connection with that embodiment or example that are included in at least one embodiment or example of this application. In this specification, the illustrative descriptions of the above terms do not necessarily refer to the same embodiments or examples.

[0098] The technical features of the above embodiments can be combined in any way. For the sake of brevity, not all possible combinations of the technical features of the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0099] The embodiments described above are merely illustrative of several implementation methods of this application, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the patent application. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this application, and these all fall within the protection scope of this application. Therefore, the protection scope of this patent application should be determined by the appended claims.

Claims

1. A film attaching apparatus for attaching a light shielding film in a light shielding film set to an object to be attached, the light shielding film set including a release film, an adhesive layer, a light shielding film, and a protective film which are stacked; characterized by, The film application device includes: The roller assembly includes a first drive roller, a second drive roller, and a third drive roller arranged along a first direction; the first drive roller is used to stretch the light-shielding film assembly and drive the light-shielding film assembly forward along the first direction; the second drive roller is used to wind the release film to separate the release film from the adhesive layer; and the third drive roller is used to wind the protective film to recycle the protective film. A movable platform is disposed on one side of the roller assembly along the second direction and is movable relative to the roller assembly along the second direction; the movable platform is used to support the film to be applied; the second direction intersects the first direction; A pressing assembly is disposed between the second drive roller and the third drive roller, and is used to press the light-shielding film onto the film to be applied; The positioning system is used to acquire the position information of the light-blocking film and the film to be applied, and is communicatively connected to the roller assembly and the moving platform.

2. The film pasting apparatus according to claim 1, wherein The pressing assembly includes a plurality of pressing rollers arranged at intervals along the first direction; The pressing roller assembly includes two pairs of pressing rollers spaced apart along a third direction; each pair of pressing rollers includes two rollers spaced apart along a second direction, and the light-shielding film assembly is used to press between the two rollers; both the first direction and the second direction intersect with the third direction.

3. The film pasting apparatus according to claim 2, wherein Of the two rollers in the pressing roller pair, the roller closest to the moving platform has an anti-sticking layer on its outer circumferential surface.

4. The film pasting apparatus according to claim 1, wherein The pressing assembly includes a scraper configured to move linearly along the first direction and apply a pressing force to the light-shielding film assembly.

5. The film pasting apparatus according to claim 4, wherein The movable platform has a bearing surface on the side near the roller assembly, and the angle between the plane where the scraper is located and the bearing surface is between 45° and 60°.

6. The film pasting apparatus according to claim 1, wherein The film-applying equipment also includes a guiding assembly, which is disposed between the pressing assembly and the third drive roller; The guide assembly includes an upper clamp and a lower clamp disposed opposite to each other along the second direction, and the protective film is sandwiched between the upper clamp and the lower clamp. 7.The film pasting apparatus according to claim 1, characterized in that, The roller assembly also includes a guide wheel, which is located at the peeling point between the release film and the adhesive layer and is used to apply the peeled release film. 8.The film pasting apparatus according to claim 1, characterized in that, The positioning system includes: A first image locator is used to obtain the position information of the light-shielding film; The second image locator is used to acquire the position information of the moving platform and / or the film to be applied; The controller is communicatively connected to the first image locator, the second image locator, the roller assembly, and the mobile platform.

9. A method of applying a film to a substrate using the film application apparatus of any one of claims 1 to 8, wherein, The film application method includes: Place the part to be coated on the mobile platform; The first drive roller, the second drive roller, and the third drive roller are activated to advance the light-shielding film assembly along the first direction and peel off the release film. The positioning system acquires the position information of the light-shielding film and the film to be applied, and adjusts the roller assembly and the moving platform to align the film to be applied and the light-shielding film. The pressing assembly is activated to press the light-shielding film onto the film to be applied.

10. The method of claim 9, wherein, The step of activating the pressing assembly to press the light-shielding film onto the film to be applied includes: Press the scraper down and move it in the opposite direction to the forward direction of the light-shielding film assembly until the pressing is completed; The scraper is lifted and moved along the forward direction of the light-shielding film assembly until it is reset.

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