WO2019104475A1 - Film pasting method and film pasting device - Google Patents

Abstract

A film pasting method, comprising steps of: pretreating a surface, onto which a film is to be pasted, of a substrate; providing a paster, and providing a balloon on the back of the paster; and inflating the balloon so that the balloon expands and deforms to press the paster onto the surface onto which a film is to be pasted and to implement attachment. Further provided is a film pasting device, the device comprising a substrate carrier module (01) and a film pasting module (02). The substrate carrier module comprises a substrate carrier (10). The film pasting module comprises the balloon (21) and a balloon carrier (20) for carrying the balloon. The balloon expands in volume and deforms along with inflation, and comes into contact with a substrate (1), onto which a film is to be pasted, carried by the substrate carrier. The film pasting method and the film pasting device can effectively prevent bubbles generated during the film pasting process, thus ensuring pasting quality and efficiency.

Description

 \¥0 2019/104475 卩(:17 称17/113326

Film method and filming equipment

 Technical field

 [0001] The technical field of the film of the present invention is specifically a film coating method and a film coating device.

 Background technique

材质， 底层 均匀涂布透明硅胶层可以通过静电吸附的方式粘贴到屏幕上， 不会影响显示效 果， 而且在

表面通过涂层处理可以达到硬化防划伤， 防眩光， 防窥， 防油 污， 防指纹等功能来保护屏幕或者达到特殊的显示效果。 虽然电子显示屏的发 展， 由平面发展到曲面。 导致贴片的难度越来越大， 工艺越来越复杂。 [0002] The rapid development of the information age makes electronic display screens everywhere in life, especially the appearance of touch screens for electronic products such as computer screens, tablets, and mobile phones. It is necessary to protect the screen without affecting the display effect. And touch-effect products, the screen protector itself is transparent

Material, the bottom layer evenly coated with transparent silica gel layer can be electrostatically adsorbed onto the screen without affecting the display effect, and

The surface can be coated with a coating to achieve scratch-resistant, anti-glare, anti-spy, anti-stain, anti-fingerprint and other functions to protect the screen or achieve special display effects. Although the development of electronic displays has evolved from planar to curved. As the patch becomes more and more difficult, the process becomes more and more complicated.

 [0003] At present, there are mainly the following methods for film special film surface filming methods:

 [0004] 1. When the flat or the two sides are attached, the roller pressing method is applied. In fact, the roller is pressed to fit the patch, so that the patch is attached to the substrate. Since the film is pressed by the roller, it cannot ensure the parallelism; the roller is made of a soft rubber material, and it is easy to adhere to foreign matter; the roller cannot be rolled strongly, so that a slight bubble is generated.

 [0005] 2. The use of elasticity, such as silica gel fixture compression method to achieve surface fit.

 [0006] One of them is to use a silicone jig having a size smaller than that of a product, and to press it in a manner of expanding the jig. The method has difficulty in manufacturing, high production cost, low life, and uneven force on the surface of the jig when pressed, and the viscosity of the silicone jig cannot completely adhere the product to the surface of the jig. Therefore, this bonding method results in poor bonding quality and the presence of air bubbles.

 [0007] The other is a method of pressing a silicone tool of equal size. The method has difficulty in manufacturing the jig, high production cost, and low life. Although the fixture is the same size as the product, uneven force is still present. Moreover, the tackiness of the silicone fixture does not completely adhere the product to the surface of the fixture. Therefore, the bonding method still results in poor bonding quality and the presence of air bubbles.

[0008] The third is to use a silicone mold to press the product after bonding the product with an adhesive film. The method has difficulty in manufacturing the jig, high production cost, and low life. Since an adhesive film is added during the bonding process, and the adhesive film \¥0 2019/104475 卩(:1' 2017/113326 can only be used once and requires special work for adhesive film and product bonding, so increase labor costs and increase costs and waste work time. It is pressed by the jig. Therefore, there are still residual bubbles in the product due to uneven stress on the surface of the jig, resulting in poor bonding quality and conformity. The bonding method still results in poor bonding quality and bubbles.

 Further, the above-mentioned film coating method is not only applicable to the film processing of the display screen, but also to the film processing of other electronic devices, such as film processing in a flexible circuit board or the like.

 [0010] Therefore, the above-mentioned conventional film sticking method has the problems of poor bonding quality, high bubbles and high cost, and in order to further remove bubbles generated in the bonding, generally includes subsequent defoaming using a bubble removing device, or The process environment is set to a vacuum, which invisibly further increases the filming process and increased film cost.

 technical problem

 [0011] The object of the present invention is to overcome the above-mentioned deficiencies of the prior art, and to provide a film sticking method, which solves the problem that the existing film sticking method has bubbles in the bonding, the quality is poor, the process is cumbersome, the surface fitting effect is poor, and the cost is high. Technical problems such as slow efficiency.

 Another object of the present invention is to provide a film coating apparatus which avoids the technical problem that the existing film sticking apparatus has bubbles, the quality is not ideal, the surface fitting effect is poor, the cost is high, and the efficiency is slow.

 Problem solution

 Technical solution

 [0013] In order to achieve the above object of the invention, an aspect of the invention provides a film sticking method. The filming method comprises the following steps:

 [0014] taking a substrate, the substrate is provided with a surface to be coated, and pretreating the surface to be coated;

 [0015] facing the bonding surface of the patch facing the pre-treated surface of the film to be attached, and simultaneously providing an airbag on the back surface of the bonding surface of the patch, the balloon is inflated with volume Then it expands and deforms;

[0016] inflating the airbag to expand and deform the airbag and press it against the back surface of the patch, and push the bonding surface toward the surface of the substrate to be bonded to perform bonding.

 [0017] In another aspect, the present invention provides a film sticking apparatus. The filming device includes:

 [0018] a substrate carrier module, comprising a substrate carrier for supporting a substrate provided with a surface to be coated;

[0019] a film module comprising an air bag and an air bag carrier for supporting the air bag, the air bag being inflated \¥0 2019/104475 卩(:1' 2017/113326 The product then undergoes expansion deformation, and the balloon wall of the balloon that is inflated and deformed comes into contact with the surface of the substrate to be coated.

 Advantageous effects of the invention

 Beneficial effect

 [0020] Compared with the prior art, the film sticking method of the present invention expands and deforms the volume by controlling the inflation of the airbag, so that it presses the patch toward the surface of the substrate to be bonded and performs bonding. This can effectively adhere the patch to the surface of the film to be applied, and avoid residual bubbles during the bonding process, thereby ensuring the quality of the bonding. Moreover, since the airbag can be inflated and deformed by volume expansion, the surface to be coated can be a flat surface, and of course, a curved surface and an irregular shape can ensure that each bonding surface is subjected to uniform pressure on the airbag wall, so that the patch is subjected to the bonding process. Uniform force, avoid residual air bubbles, and good fit quality. In addition, the film sticking method of the invention only needs to inflate and control the airbag, so that the bonding process conditions are easy to control, the bonding quality is ensured to be stable, and the bonding process is simplified. Therefore, the film sticking method of the present invention effectively avoids the cumbersome process of the prior art filming method, which requires additional preparation of the bonding jig and the uneven force of the bonding, and the additional need for the extraction and defoaming treatment.

 [0021] The film coating device of the present invention realizes the bonding pressure on the patch through the airbag contained in the film module, so that the patch and the surface of the substrate to be pasted are adhered, thereby ensuring that the patch can be treated with different shapes. The surface of the film is bonded to each other, and no air bubbles remain, which ensures the quality of the bonding.

 Brief description of the drawing

 DRAWINGS

 1 is a flow chart of a film sticking method according to an embodiment of the present invention;

 2 is a structural view of a film sticking device according to an embodiment of the present invention.

 Invention embodiment

 Embodiments of the invention

 [0024] In order to make the objects, technical solutions, and advantages of the present invention more comprehensible, the present invention will be further described in detail below with reference to the embodiments. It is understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.

[0025] Embodiments of the present invention provide a film sticking method capable of effectively avoiding residual bubbles in a bonding process. The film \¥0 2019/104475 卩(:1' 2017/113326 The process flow is shown in Figure 1, and please refer to Figure 2. The filming method includes the following steps:

[0026] 301. Pretreatment of the surface of the substrate to be coated: taking a substrate 1, the substrate 1 is provided with a surface to be coated

And pretreating the surface to be coated;

 [0027] 302. Providing a patch, and providing an airbag on the back side of the patch: facing the bonding surface of the patch 2 to the surface of the substrate to be pasted through the pretreated substrate, and simultaneously on the patch The airbag 21 is disposed on the back surface of the abutting surface of the airbag 21, and the airbag 21 is inflated and deformed in accordance with the inflation;

 [0028] 803: The inflated airbag expands and deforms its volume, presses the patch against the surface of the film to be attached and performs bonding: inflating the airbag 21 to cause the airbag 21 to expand and deform to deform the back surface of the patch 2, The bonding surface of the patch 2 is pushed toward the surface of the substrate 1 to be bonded.

 [0029] wherein, the substrate 1 in the above step 301 is a device that needs to be processed by a film, such as an electronic display screen, a circuit board or glass that needs to be attached with a protective film, and of course, other films that require a film. Devices, such as polarizers, etc. Wherein, when the substrate 1 is an electronic display screen, it may be a flat display screen, or a curved screen and a profiled product.

 [0030] The pretreatment in the step 301 is to pretreat the surface of the substrate 1 to be coated to remove the solvent remaining on the surface or the dust on the adhesion, etc., to avoid the patch 2 and the surface to be coated in the above step 303. Residual bubbles during the bonding process affect the quality of the bonding. The pretreatment of the surface to be coated of the substrate 1 may be a conventional pretreatment in a filming process, such as cleaning.

 [0031] The patch 2 in the above step 302 may be any film layer in the film processing. For example, the protective layer in the field of electronic display panels, or the protective film layer in the field of flexible circuit boards, and the like, of course, may also be patches of the field, such as glass patches, polarizer bonding, and the like.

 [0032] Since it is a patch, it must have a bonding surface, and the other surface opposite to the bonding surface is defined as a back surface. Therefore, in the step 302, the bonding surface of the patch 2 faces the pretreated surface of the substrate 1 to be pasted. Thus, in the bonding process, the bonding surface of the patch 2 can be bonded to the surface of the substrate 1 to be pasted. The air bag 21 disposed on the back side of the patch 2 should be such that after the volume is expanded, the wall of the air bag 21 can cover and press against the surface of the substrate 1 to be pasted, so that the pressure generated on the wall of the air bag 21 Next, the entire bonding surface of the patch 2 can be completely fitted on the surface of the substrate 1 to be coated.

[0033] After the air in the airbag 21 is inflated in the above step 303, the air volume of the airbag 21 is increased due to its internal air pressure. \¥0 2019/104475 卩(:1' 2017/113326 swells. Thus, due to the expansion of the volume, the wall of the airbag 21 comes into contact with the back of the patch 2, and the patch 2 is pressed, and the patch 2 is placed. The bonding surface is pressed against the surface of the film of the substrate 1 so that the patch 2 is bonded to the substrate. Due to the airbag 21, since the airbag 21 has a volume expansion characteristic of inflation, the wall of the airbag 21 is generated for the patch 2. The point of action of the pressure is to first point to a small area and then gradually expand to the surface as the volume continues to expand. Thus, under the action and change of the force, the patch 2 is pressed against the surface of the substrate 1 by a small area. Therefore, the inflation deformation of the airbag 21 can be controlled such that the balloon wall of the airbag 21 is inflated and deformed from the point or the line to the back surface of the patch 2 from the point or the line. Pushing the bonding surface toward the surface of the substrate 2 to be pasted, and gradually bonding from the point or the line to the surface, thereby effectively preventing the two bubbles from remaining during the bonding process, thereby ensuring the bonding. Quality. Among them, The bonding of the bonding surface of the patch 2 to the surface to be coated of the substrate 1 from the point or the line to the surface can be controlled and/or controlled by the process conditions for inflating the airbag. The control of the expansion deformation of the airbag 21 is achieved.

 [0034] As an embodiment, the method of controlling the patch 2 and the surface of the substrate 1 to be pasted from a point or a linear to surface may be as follows:

 [0035] The first type is controlled by the process conditions for inflating the airbag 21. For example, according to the size of the area of the patch 2, the airbag 21 is inflated or twice or more inflated, so that the airbag 21 undergoes volume expansion deformation, so that the capsule wall of the airbag 21 is pressed against the patch 2 On the back side, the bonding surface of the patch 2 is pressed against the surface to be bonded of the substrate 1 to perform a preferred point-to-face bonding. In addition, the aeration process condition can be flexibly adjusted according to the material and the size of the patch 2, and the volume expansion rate and the deformation shape control of the airbag 21 are indirectly controlled by controlling the inflation process condition, so that the wall of the airbag 21 can preferably be a point pressure first. To the patch 2, the bonding surface of the patch 2 is bonded to the surface to be bonded of the substrate 1 by a point or line contact, and then gradually conformed to the surface.

[0036] Secondly, on the surface of the airbag 21 near the back surface of the patch 2, a protrusion (not shown) is provided, and after the airbag 21 is inflated, the protrusion is pressed toward the The back surface of the patch 2 is used to first push the bonding surface of the patch 2 toward the surface of the substrate 1 to be coated. Specifically, the end of the protrusion may be a tip end or a linear end, such that after the inflation volume of the air bag 21 is expanded, the convex end thereof is pressed against the back surface of the patch 2 to generate a point or linear force on the patch 2, The surface of the patch 2 and the substrate 1 to be pasted is bonded from the point or the line to the surface to avoid residual bubbles on the bonding surface. \¥0 2019/104475 卩(:1' 2017/113326

[0037] Of course, the first type and the second type can be combined simultaneously to control the bonding of the patch 2 to the surface from the point or the line, thereby avoiding residual bubbles on the bonding surface and improving the bonding quality.

 [0038] Thirdly, between the airbag 21 and the patch 2, a movable baffle 22 is disposed, and during the expansion and deformation of the inflation volume of the airbag 21, the movement of the movable baffle 22 is controlled. Therefore, the volume expansion deformation of the airbag 21 is controlled to achieve the bonding of the patch 2 to the surface of the substrate 1 to be attached, and it is preferable to gradually adhere from the point or the line to the surface to avoid residual bubbles on the bonding surface.

 [0039] In an embodiment, the movable baffle 22 may be a movable baffle 22, and the movable baffle 22 is controlled from the patch 2 during expansion and deformation of the inflation volume of the air bag 21. One end of the patch 2 is slid to the other end of the patch 2 to control the expansion and deformation of the volume of the airbag 21, so that the surface of the patch 2 and the surface to be attached is preferably gradually changed from a point or a line to a surface. The bonding is performed such that the patch 2 is gradually attached from one end of the base 1 to the other end.

 [0040] In another embodiment, the movable baffle 22 may be two or more movable baffles 22, and specifically may be two or more pieces. During the expansion and deformation of the inflated volume of the air bag 21, Controlling the movable baffle 22 to slide from the central area of the patch 2 toward the edge of the patch 22 to control the expansion and deformation of the volume of the airbag 21, so that the patch 2 and the film to be filmed The bonding of the surface is preferably from the point or the line to the surface, and the patch 2 is gradually bonded from the central portion of the substrate 1 to the edge, which not only effectively avoids residual bubbles, but also improves the bonding efficiency. .

 [0041] In addition, the third type may be performed separately, or may be performed based on any one or two of the foregoing first and second types to achieve the patch 2 and the film to be filmed. The conformation of the surface is preferably a gradual conformation from a point or a line to a surface. When the second type is combined, the starting position of the movable flap 22 sliding should be the convex portion of the airbag 21 to ensure that the projection of the airbag 21 is pressed against the patch 2 first, and the sticker on the convex portion is pressed. The sheet 2 is first pressed onto the surface of the substrate 1 to be adhered, so as to ensure that the bonding of the patch 2 to the surface of the film to be applied is preferably from point or line to the surface, avoiding the two Residual bubbles.

Therefore, by controlling the inflation process condition of the airbag 21 or/and controlling the volume deformation of the airbag 21, the wall of the airbag 21 can be pressed toward the patch 2 by a point or a line, thereby realizing the bonding surface of the patch 2 and the base 1 The surface to be bonded is firstly adhered by a point or a line contact. As the air pressure in the airbag 21 increases, the volume of the airbag 21 continues to expand, thereby gradually expanding the contact surface between the wall of the airbag 21 and the patch 2, thereby realizing the patch 2 The bonding surface and the surface to be bonded of the substrate 1 are gradually brought into contact by the surface contact by a point or line contact. such \¥0 2019/104475 卩(:1' 2017/113326 not only ensures the uniform pressure of the two, but also effectively avoids residual air bubbles between the two interfaces, and the quality of the bonding is high. The volume expansion deformation realizes that the press-fit patch 2 is adhered to the surface to be bonded of the base body 1. Therefore, when the airbag 21 presses the patch 2 against the surface to be adhered of the base body 1, the wall of the airbag 21 can be attached according to the base body 1. The shape of the surface is deformed, so that the surface to be adhered of the substrate 1 can be not only a plane but can be non-planar, such as a curved surface, and does not require other special equipment or processes.

 [0043] On the basis of the above embodiments, in order to improve the bonding strength between the patch 2 and the surface of the substrate 1 to be coated, in an embodiment, after performing the above step 302, before step 303, Any step before inflating the inside of the airbag 2 1 to after inflation includes a step of heating the patch 2 or the substrate 1 or both the patch 2 and the substrate 1. The temperature of the heating is based on the characteristics of the patch 2, so that the bonding is preferred.

 [0044] In another embodiment, after the bonding surface is pushed onto the surface of the substrate 1 to be bonded, the substrate 1 is also attached to the substrate 1 , that is, the substrate to which the patch 2 is attached. 1 A vacuuming step is performed to further remove bubbles that may exist between the patch 2 and the surface of the substrate 1 to be coated to improve the quality of the bonding. At the same time, the substrate 1 is heated.

 [0045] In another embodiment, after the step 302 is performed, before the step 303, that is, before the airbag 21 is inflated, the step of positioning the substrate 1 and the patch 2 may be further included. The surface of the substrate 1 to be attached is attached to the surface of the patch 2, so that the patch 2 can be accurately attached to the surface of the substrate 1 to improve the quality and precision of the bonding.

 Therefore, the above-described film sticking method of the embodiment of the present invention expands and deforms the volume by controlling the inflation of the airbag 21, so that the patch 2 is specifically pressed against the mating surface of the patch 2 toward the substrate 1. The surface of the film is to be attached and adhered, and the residual bubbles during the bonding process are avoided to ensure the quality of the bonding. Moreover, since the airbag 21 can be inflated and deformed by volume expansion, the surface of the substrate 1 to be filmed may be a flat surface or a curved surface, and each of the bonding surfaces can be uniformly pressurized by the wall of the airbag 21, so that the patch 2 is attached. Uniform force during the process, avoiding residual bubbles and good bonding quality. In addition, the film sticking method of the embodiment of the invention only needs to inflate and control the airbag 21, so that the film processing conditions are easy to control, the quality of the bonding is stable, and the bonding process is simplified.

[0047] In still another aspect, in accordance with the process steps of the film coating method described above, the embodiments of the present invention further provide \¥0 2019/104475 卩(:1' 2017/113326 The filming device for realizing the above filming method. The structure of the filming device is as shown in Fig. 2, which includes a base carrier module 01 and a filming module 02.

 [0048] wherein the base carrier module 01 comprises a base carrier 10. The base carrier 10 is used to load a substrate 1 to be coated provided with a surface to be coated. Specifically, the surface of the substrate 1 to be pasted faces the film module 02, so that the film module 02 applies a film treatment to the surface of the substrate 1 to be coated.

 [0049] The film sticking module 02 includes an airbag 21 and an airbag carrier 20 for supporting the airbag 21, and the airbag 21 is inflated and deformed with inflation, and the balloon wall of the airbag 21 is inflated and deformed. Contact with the surface of the substrate to be coated 1 to be coated supported by the substrate carrier 10. At this time, during the filming process, the back surface of the patch 2 can be attached to the outer wall of the airbag 21 facing the base 1, so that when the airbag 21 is inflated to expand and deform its volume, the patch 2 can be directly applied. The surface of the substrate 1 to be coated on the base carrier 10 of the base carrier module 01 is pushed so that the patch 2 is adhered to the surface of the substrate 1 to be coated under the pressure of the wall of the airbag 21.

 In an embodiment, the film module 02 further includes a fixing frame 23 for fixing the patch 2, and the fixing frame 23 is disposed between the airbag 21 and the base carrier 10. In this way, the patch 2 is fixed by the fixing frame 23 or the patch 2 is further positioned between the patch 2 and the substrate to be bonded 1 supported by the substrate carrier 10 to improve the bonding precision between the patch 2 and the substrate 1 to be bonded. And improve the quality of the fit.

 [0051] In an embodiment, the substrate 2 is loaded with the substrate 1 to be coated with the surface of the substrate 1

There is also a protrusion on the outer surface of the wall of the capsule 1 (not shown). After the balloon 21 is inflated, the protrusion is pressed against the patch 2 or the patch 2 is first pushed toward the surface of the substrate to be film 1 to be filmed. Specifically, the end of the protrusion may be a tip end or a linear end, such that after the inflation volume of the air bag 21 is expanded, the convex end thereof is pressed against the back surface of the patch 2 to generate a point or linear force on the patch 2, The bonding surface of the patch 2 and the surface of the substrate 1 to be pasted are gradually adhered from a point or a line to the surface, thereby avoiding residual bubbles on the bonding surface.

[0052] In a specific embodiment, the material of the airbag 21 in each of the above embodiments may be any material having airtightness, preferably a material having airtightness and elasticity. Specifically, it may be any of the elastic silicone products.

[0053] In order to further effectively control the deformation of the airbag 21 in the inflation volume expansion, in an embodiment, the film module 02 is further provided with a movable baffle 22, and the movable baffle 22 is disposed to be fixed in the fixed \¥0 2019/104475 卩(:1' 2017/113326 Between the patch 2 of the frame 23 and the airbag 21, the volume expansion deformation of the airbag 21 is controlled by sliding the movable shutter 22, thereby realizing the patch 21 The surface of the substrate to be coated is pressed against the surface of the substrate 1 and gradually conformed to the surface by dots or lines to prevent the bubbles from remaining in the bonding process.

 [0054] Thus, in a further embodiment, the flapper 22 can be constructed as a movable baffle. Thus, the movable flap 22 can be slid along the end of the patch 2 toward the other end of the patch 2, so that when the airbag 21 is expanded in volume, it is controlled from the end of the patch 2 to the point or line. The surface is attached to the surface of the substrate 1 to be coated.

 [0055] In still another embodiment, the movable baffle 22 is composed of at least two movable baffles (such as two or more blocks), and the movable baffle 22 is disposed at the fixed The patch 2 on the shelf is interposed between the airbag 21 and the movable shutter 22 is slid from the central area of the patch 2 toward the edge of the patch 2. Thus, when the inflation volume of the airbag 21 is expanded, the plurality of movable flaps 22 gradually slide toward the edge of the patch 2 as the volume of the airbag 21 expands, thereby controlling the surface of the patch 2 and the substrate 1 to be pasted by the point. Or the line gradually fits to the surface, while improving the efficiency of the fit.

 [0056] When the airbag 21 is further provided with a protrusion (not shown) on the outer surface of the airbag 21 facing the base carrier 10 as described in the above embodiment, the movable shutter in the above embodiment The starting position of the sliding portion 22 should be the convex portion of the airbag 21 to ensure that the projection of the airbag 21 is first pressed against the patch 2, and the patch 2 at the projection is first pressed against the base 1 On the surface of the film to be applied, it is ensured that the bonding of the patch 2 and the surface of the substrate 1 to be pasted is from the point or the line to the surface, so as to avoid residual bubbles between the two.

 In still another embodiment, the movable baffle 22 is disposed on the fixing frame 23 to facilitate controlling the sliding of the movable baffle 22 to expand the volume of the air bag 21 and the patch 2 and the base 1 The conforming deformation of the surface to be coated is more synergistic and improves the quality of the bonding.

 [0058] On the basis of the above embodiments, in an embodiment, the film module 02 is further provided with a heating device (not shown), and the heating device is used for the patch 2 and/or the substrate 1 The temperature is controlled and adjusted to improve the effectiveness and strength of the patch 2 to adhere to the surface of the substrate 1 to be coated. The heating means may be disposed adjacent to the patch 2 and/or the substrate or directly on the holder 23, and the heating means may be a conventional heating means such as an electric heating means or the like.

[0059] In order to improve the bonding precision and quality of the surface of the patch 2 and the substrate 1 to be coated, in one embodiment, the film coating apparatus in the above embodiments further includes a vacuum defoaming device and a positioning module (shown as a display) In \¥0 2019/104475 卩 (: 17 is 17/113326 less than one device, the vacuum defoaming device vacuums the substrate 1 to which the patch 2 is attached. Positioning module control The substrate carrier 10 and the film module 02 realize the positioning of the substrate 1 to be bonded and the patch 2 so that the patch 2 can be accurately attached to a specified position of the surface of the substrate 1 to be coated.

[0060] The film coating device of the present invention realizes the pressure from the point or the line to the surface of the film through the air bag contained in the film module, so that the surface of the film to be pasted from the substrate and the surface of the substrate is gradually adjusted from the point or the line to the surface. In order to ensure that no air bubbles remain between the film and the surface to be coated, the quality of the bonding is ensured.

 [0061] The present invention will be further described below by way of specific embodiments.

 Embodiment 1

 [0063] This embodiment provides a film sticking device and a film sticking method of a film sticking method. The structure of the filming device is as shown in FIG. 2, and includes a base carrier module 01 and a film module 02. The base carrier module 01 comprises a base carrier 10 for supporting a curved screen 1 provided with a surface to be coated. The film module 02 includes an air bag 21 and an air bag carrier 20 for supporting the air bag 21, and the air bag 21 is inflated and deformed as the air is inflated, and the balloon wall of the air bag 21 is inflated and deformed. The substrate to be coated, which is supported by the substrate carrier 10, is in contact with the surface of the film to be coated.

 [0064] The filming method of the curved screen 1 in this embodiment is as follows:

 [0065] (1) After the surface of the curved surface of the curved screen 1 is cleaned, it is placed on the carrier module 01, and the surface of the film to be coated after the cleaning process is facing the film module 02;

 [0066] (2) attaching a curved screen protective film on the outer surface of the airbag 21 facing the surface of the curved screen 1 to be pasted, and then inflating the airbag 21 to expand the airbag 21 and pressurize the protective film It is sent to the surface of the curved screen 1 to be pasted, and a point-to-face gradual bonding process is realized, so that the protective film is attached to the surface of the curved screen 1 to be pasted.

 Example 2

[0068] This embodiment provides a film sticking device and a film sticking method of a film sticking method. The structure of the filming device is as shown in FIG. 2, and includes a base carrier module 01 and a film module 02. The base carrier module 01 comprises a base carrier 10 for supporting a curved screen 1 provided with a surface to be coated. The film module 02 includes an air bag 21 and an air bag carrier 20 for supporting the air bag 21, and the air bag 21 is inflated and deformed as the air is inflated, and the balloon wall of the air bag 21 is inflated and deformed. The substrate to be coated supported by the substrate carrier 10 \¥0 2019/104475 卩(:1' 2017/113326 The surface to be coated is in contact. The film module 02 further includes a movable baffle 22 and a fixing frame 23 for fixing the curved screen protective film, the fixing frame 23 is arranged Between the airbag 21 and the base carrier 10, the movable shutter 22 is disposed between the curved screen protective film of the fixing frame 23 and the airbag 21. The movable shutter 22 is composed of four blocks. The movable baffle is configured, and the movable baffle 22 slides from the central portion of the curved screen protective film toward the edge of the curved screen protective film.

 [0069] The filming method of the curved screen 1 in this embodiment is as follows:

 [0070] (1) After the surface of the curved surface of the curved screen 1 is cleaned, it is placed on the carrier module 01, and the surface of the film to be coated after the cleaning process is facing the film module 02;

 [0071] (2) affixing the curved screen protective film on the fixing frame 23, and causing the bonding surface of the curved screen protective film to face the surface to be pasted of the curved screen 1, and then facing the airbag 21 Inflating, the airbag 21 is expanded in volume, and then the four movable flaps 22 are slowly slid from the central region of the curved screen protective film toward the edge of the curved screen protective film, thereby controlling the capsule wall of the airbag 21 to protect the curved screen The film generates a pressure from a point to a surface such that the curved screen protective film is adhered from the point to the surface to the surface of the curved screen 1 to be pasted.

 Example 3

 [0073] This embodiment provides a film sticking device and a film sticking method of a film sticking method. The structure and the bonding method of the filming device are the same as those in Embodiment 2, except that the curved screen 1 is a flat screen.

 Example 4

 [0075] This embodiment provides a film sticking device and a film sticking method of a film sticking method. The filming device structure and the bonding method are the same as those in the second embodiment, except that the curved screen 1 is replaced by a liquid crystal glass. The curved screen protection film is replaced by a polarizer.

 Comparative Example 1

 [0077] The protective film is attached to the flat or curved screen by a conventional roller pressing method.

[0078] Comparing the film layers adhered to the examples 1-4 and the comparative example 1, it was found that in the screen after the film was coated in the examples of Examples 1-3, there was no bubble between the protective film and the screen, and in Example 4 In the liquid crystal glass with the polarizer attached, there is no bubble between the polarizer and the liquid crystal glass, and the compound is required to be factory-made. In the first aspect, the plane or the polygonal curved screen and the protective film have bubbles, and the subsequent defoaming process is required to meet the factory requirements. Therefore, the film sticking method and the film sticking device of the embodiment of the invention can effectively improve the patch and the substrate to be coated. \¥0 2019/104475 卩(:1' 2017/113326 The quality of the bonding between the surfaces, and the film efficiency is high.

 The above description is only the preferred embodiment of the present invention, and is not intended to limit the present invention, and any modifications, equivalents, and improvements made within the spirit and scope of the present invention should be included in the present invention. Within the scope of protection of the invention.

Claims

\¥0 2019/104475 卩(:1' 2017/113326 Claims  [Claim 1] A film sticking method comprising the following steps:  Taking a substrate, the substrate is provided with a surface to be coated, and the surface of the film to be coated is pretreated, and the bonding surface of the patch faces the surface of the film to be coated which is pretreated, and simultaneously on the surface of the film An airbag is disposed on a back surface of the bonding surface, and the airbag is expanded and deformed as the airbag is inflated;  The airbag is inflated, the airbag is inflated and deformed, and pressed against the back surface of the patch, and the bonding surface is pushed toward the surface of the substrate to be bonded to be bonded.  [Claim 2] The film sticking method according to claim 1, wherein: the balloon is inflated and deformed and pressed against the back surface of the patch is a wall or a line in which the balloon is inflated by a point or a line Gradually pressing the surface to the back surface of the patch, pushing the bonding surface toward the surface of the substrate to be coated, and gradually bonding from a point or a line to a surface.  [Claim 3] The film sticking method according to claim 1 or 2, wherein: the patch is controlled by controlling a process condition for inflating the airbag and/or controlling expansion deformation of the airbag The bonding of the bonding surface to the surface of the film to be coated is a stepwise bonding from a point or a line to a surface.  [Claim 4] The film sticking method according to claim 3, wherein: on the surface of the airbag near the back surface of the patch, a protrusion is provided, and after the airbag is inflated, the The projections are first pressed against the back side of the patch.  [Claim 5] The film sticking method according to claim 3, wherein: between the airbag and the patch, a movable baffle is provided, and during the inflation deformation of the airbag inflation volume, the control is performed. The movable baffle slides from one end of the patch to the other end of the patch to control the expansion and deformation of the volume of the airbag, so that the fit of the patch to the surface of the film to be attached is determined by the point Or the line gradually conforms to the surface; and/or Between the airbag and the patch, at least two movable baffles are provided, and during the expansion deformation of the airbag inflation volume, the movable baffle is controlled to slide toward the edge of the patch to Controlling the volume of the airbag to undergo inflation deformation, so that the patch and the to-be-attached \¥0 2019/104475 卩(:1' 2017/113326 The surface of the film is bonded from the point or line to the surface.  [Claim 6] The film sticking method according to any one of claims 1, 2, and 4-5, wherein the substrate is any one of a display panel or a flexible circuit board, a glass, and a polarizer.  [Claim 7] The film sticking method according to claim 6, wherein: the display screen is a curved screen [Claim 8] The film sticking method according to any one of claims 1, 2, 4-5, and 7, wherein: the step of inflating the airbag to any one after inflation, further comprising a step of heating the patch and/or the substrate; and/or  After the bonding surface is pushed onto the surface of the substrate to be coated, the step of laminating the substrate is further included.  [Claim 9] The film sticking method according to any one of claims 1, 2, 4-5 and 7, wherein: before inflating the airbag, the surface of the substrate to be coated is further The bonding surface of the patch performs the step of positioning processing.  [Claim 10] A film sticking apparatus for carrying out the film sticking method according to any one of claims 1 to 9, comprising:  a base carrier module, comprising a base carrier for supporting a substrate provided with a surface to be coated; and a film module comprising an air bag and an air bag carrier for supporting the air bag, wherein the air bag expands and deforms as the air is inflated, and The balloon wall of the balloon that is inflated and deformed comes into contact with the surface of the substrate to be coated. [Claim 11] The film sticking apparatus according to claim 10, wherein: the film sticking module further comprises a fixing frame for fixing the patch, the fixing frame being disposed between the airbag and the base carrier .  [Claim 12] The film sticking apparatus according to claim 10 or 11, wherein a convex portion is further provided on an outer surface of the balloon wall of the airbag facing the surface of the substrate to be coated.  [Claim 13] The film sticking device according to claim 10, wherein: the film sticking module further comprises a movable shutter, wherein the movable shutter is disposed on the patch fixed on the fixing frame Between the airbags, and the movable baffle slides along one end of the patch toward the other end of the patch [Claim 14] The film sticking apparatus according to claim 10, wherein: the film sticking module further comprises \¥0 2019/104475 卩(:1' 2017/113326 at least two movable baffles, the movable baffle is disposed between the patch fixed to the fixed frame and the air bag, and the movable baffle Sliding from the center of the patch toward the edge.  [Claim 15] The film sticking apparatus according to claim 13 or 14, wherein the movable shutter is disposed on the holder.  [Claim 16] The film sticking device according to any one of claims 10-11, 13-14, wherein: the film sticking module is further provided with a heating device for heating the patch and/or the substrate; and / Or the film module is further provided with a defoaming device for vacuuming the substrate to which the patch is attached.  The film sticking device according to any one of claims 10-11, 13-14, wherein: the film sticking device further comprises a positioning module, wherein the positioning module controls a surface to be attached and a patch of the substrate Positioning.