CN111981007A - Laminating device, laminating assembly and laminating method of curved cover plate and flexible screen - Google Patents

Abstract

The present application provides a laminating device, a laminating component, and a laminating method of a flexible screen and a curved cover plate. The fitting device includes a cover plate fixing base, a moving component, a clamping component and a fitting component. Since the distance between the air bag of the fitting device and the curved cover plate fixed on the cover plate fixing base gradually increases from the middle position of the air bag to the edge of the air bag, when the air bag is filled with a filling medium to inflate the air bag , the middle position of the airbag can first push the middle position of the flexible screen to contact the middle position of the cover plate. With the gradual expansion of the airbag, other positions of the airbag can gradually push the middle position of the flexible screen to the edge position and gradually fit the curved cover plate , so that the gas between the flexible screen and the curved cover plate will be gradually squeezed out during the bonding process, so as to avoid air bubbles between the flexible screen and the curved cover plate.

Description

Laminating device, laminating component, and laminating method of curved cover plate and flexible screen

technical field

The present application relates to the technical field of electronic information, and in particular, to a laminating device, a laminating component and a method for laminating a curved cover plate and a flexible screen.

Background technique

With the continuous development of display technology, the application of flexible screens is becoming more and more extensive, for example, it is applied to display devices such as mobile phones and tablets, so as to realize the 3D display of the display device. Generally speaking, the flexible screen needs to be attached to the curved cover plate, so that the display screen presents a 3D form, so as to realize the 3D form display of the display device.

In the prior art, a flat pressing operation is generally used to directly press the flexible screen to the curved cover plate, but defects such as air bubbles are easily generated.

SUMMARY OF THE INVENTION

The present application provides a bonding device, a bonding component and a bonding method thereof, so as to achieve high-quality bonding between a curved cover plate and a flexible screen and avoid defects such as air bubbles.

In a first aspect, the present application provides a laminating device for laminating a flexible screen and a curved cover plate. The laminating device includes a cover plate fixing base, a clamping component and a laminating component; the cover plate fixing base is used for fixing the curved cover plate; the clamping component is used for clamping and carrying the flexible A carrier film for the screen, and the flexible screen is located between the bonding component and the cover plate fixing base; the bonding component is used to press the flexible screen so that the flexible screen is connected to the cover plate. The curved cover plate is attached; the attaching component includes an airbag base, an airbag and a communication pipe, a sealing cavity is formed between the airbag and the airbag base or inside the airbag, and the communication pipe is communicated with the sealing cavity, using When the filling medium is filled into the sealing cavity to inflate the air bag; when the cover plate fixing base and the fitting assembly are relatively moved to the pre-fitting position, the air bag is in a tensioned state, and The distance between the outer surface of the airbag and the curved cover plate gradually increases from the middle position of the curved cover plate to the edge of the curved cover plate, wherein the cover plate fixing base and the When the bonding assembly relatively moves to the pre-bonding position, the flexible screen and the curved cover plate begin to contact.

In the present application, since the air bag is in a tensioned state, the distance between the air bag and the cover plate fixing area gradually increases from the middle position of the air bag to the edge of the air bag, so that when the air bag is filled with filling When the airbag is inflated, the middle position of the airbag can first push the middle position of the flexible screen to contact the middle position of the cover plate. With the gradual expansion of the airbag, other positions of the airbag can gradually push the middle position of the flexible screen to the edge position. It is attached to the curved cover, so that the gas between the flexible screen and the curved cover will be gradually squeezed out during the lamination process, so as to avoid the generation of air bubbles between the flexible screen and the curved cover.

In some embodiments, when the cover plate fixing base and the fitting assembly are relatively moved to the pre-fitting position, the outer surface of the airbag includes a top surface and two first side surfaces connected to the top surface, The top surface is an outer convex arc surface whose middle position is higher than the edge, and at least a part of the first side surface is a constricted area, and the condensed areas of the two opposite first side surfaces are away from the top surface from the top surface directions are close to each other.

Since the two first side surfaces have a gathering area from the top surface to the direction away from the top surface, so that in the process of attaching the flexible screen to the curved cover plate, the carrier tape with the flexible screen is attached to the surface of the airbag and is attached to the surface of the airbag. When the airbag is profiled, the edge of the flexible screen can have a large bending angle, so that the curved cover and the flexible screen can be well attached with a large angle of bending angle greater than 70°.

In some embodiments, the side surfaces further include two opposite second side surfaces, the second side surfaces are located between the two first side surfaces, and at least a partial area of the second side surfaces is a gathering area. The gathered regions of the second side face approach each other in a direction away from the top surface from the top surface. At this time, the two first side surfaces of the airbag have gathered regions from the top surface to the direction away from the top surface, and the two second side surfaces have gathered regions from the top surface to the direction away from the top surface, so that in the flexible During the lamination process of the screen and the curved cover plate, when the carrier tape is attached to the surface of the airbag with the flexible screen and follows the shape of the airbag, the four edges of the flexible screen 10 can have a large bending angle, so that the flexible screen 10 can be well bent. The four-curved cover and the flexible screen can be attached at a large angle with a bending angle greater than 70°.

In some embodiments of the present application, in the natural state of the airbag, the shape of the inner surface of the airbag is the same as the shape of the outer surface of the airbag base, and the inner surface of the airbag is the same as the outer surface of the airbag base. Surface fit. That is, the distance from the middle position to the edge position of the outer surface of the airbag base corresponding to the curved cover plate gradually increases.

In some embodiments, the airbag base includes an opposing top surface, a bottom surface, and two third side surfaces disposed between the top surface and the bottom surface and facing each other, wherein at least a part of the third side surface is an inclined area, and the inclined The area is connected with the top surface, and the inclined areas of the two opposite third side surfaces are gradually approached from the top surface to the bottom surface. When the inner surface of the airbag is attached to the outer surface of the airbag base, the area where the inner surface of the airbag is attached to the third side surface of the airbag base is the first side surface, and the area where the inner surface of the airbag is attached to the third side surface of the airbag base is the first side surface. The location of the sloped area of the third side surface forms the constricted area of the first side surface.

In some embodiments, two oppositely arranged fourth side surfaces are further provided between the top surface and the bottom surface, the fourth side surfaces are located between two opposite third side surfaces, and at least Part of the area is an inclined area, the inclined area is connected with the top surface, and the inclined areas of the two opposite fourth side surfaces are gradually approached from the top surface to the bottom surface. When the inner surface of the airbag is attached to the outer surface of the airbag base, the area where the inner surface of the airbag is attached to the fourth side surface of the airbag base is the second side surface, and the area where the inner surface of the airbag is attached to the fourth side surface of the airbag base is the second side surface. The position of the inclined area of the fourth side surface forms the constriction area of the second side surface.

In some embodiments, a transition arc surface is connected between the top surface of the airbag base and the third side surface, and the transition arc surface smoothly connects the top surface and the third side surface, so as to avoid the airbag base. The position where the top surface intersects the third side surface produces a sharp angle to pierce the airbag sleeved on the airbag base.

In some embodiments, a transition arc surface may also be connected between the top surface of the airbag base and the fourth side surface, and the transition arc surface smoothly connects the top surface and the fourth side surface to avoid the airbag. The position where the top surface of the base intersects the fourth side surface produces a sharp angle to pierce the airbag sleeved on the airbag base.

In some embodiments, the radius of curvature of the transition arc surface is greater than 3 mm.

In some embodiments, the wall thickness of each location of the air bag is the same.

In other embodiments of the present application, the wall thickness of each position of the airbag may also be different. For example, in some embodiments, the wall thickness of the airbag gradually decreases from a middle position corresponding to the top surface to an edge position of the top surface.

In some embodiments, the top surface of the airbag base may be flat.

In some embodiments, the top surface of the airbag base may be an arc-shaped surface, and the arc-shaped surface is an outer convex arc surface whose middle position is higher than the edge position.

In some other embodiments of the present application, when the air bag is not filled with a filling medium, there is a gap between the inner surface of the air bag and the outer surface of the air bag base. At this time, the shape of the airbag base may not be specifically limited.

In some embodiments, there are a plurality of communication pipes, and the plurality of communication pipes are all arranged in the airbag base, so as to save the space occupied by the fitting assembly and avoid damage to the communication pipes.

In some embodiments, the outlet of the communication pipe is located on the surface of the airbag base, and the outlets of the plurality of communication pipes are evenly distributed on the surface of the airbag base covered by the airbag, so that the filling medium can be evenly distributed. into the air bag.

In the embodiments of the present application, the filling medium may be gas or liquid.

In some embodiments of the present application, the laminating device further includes an alignment table, the clamping component is disposed on the alignment table, and the alignment table moves to drive the flexible screen and the curved cover board alignment.

In some embodiments, the laminating device includes an upper cavity and a lower cavity matching with the upper cavity, the cover plate fixing base is arranged in the upper cavity, the clamping assembly and the attaching The bonding components are all arranged in the lower cavity, and the upper cavity and the lower cavity are closed to form a closed space, so that the bonding process of the flexible screen and the curved cover plate is carried out in the closed space.

In some embodiments, a vacuuming device is connected to the upper cavity and/or the lower cavity, and the vacuuming device communicates with the closed space and is used for vacuuming the closed space, that is, to make it flexible. The bonding process of the screen and the curved cover is carried out in a vacuum environment to avoid the adsorption of dust and impurities in the air between the flexible screen and the curved cover, and at the same time, it can also reduce the generation of air bubbles between the flexible screen and the curved cover .

In some embodiments, a viewing window is provided on the upper cavity and/or the lower cavity, and when the flexible screen is attached to the curved cover plate, the projection of the curved cover plate on the plane where the viewing window is located. It is located within the scope of the viewing window, so that the complete bonding process can be observed through the viewing window, so that it is convenient to observe whether there is a problem in the bonding process.

In some embodiments, the attaching device includes a pressure sensor, the pressure sensor is located on the outer surface of the upper cavity away from the lower cavity, and is used to detect the attachment of the flexible screen to the curved cover plate. The pressure of the curved cover plate is timely. The pressure and the pressure change speed of the curved cover plate when the flexible screen and the curved cover plate are detected by the pressure sensor are detected, so as to adjust the volume and speed of the filling medium in the airbag to ensure better performance. Fit effect.

In a second aspect, the present application further provides a bonding component, which is used for bonding a flexible screen and a curved cover plate. The fitting assembly includes an airbag base, an airbag and a communication pipe, a sealing cavity is formed between the airbag and the airbag base or inside the airbag, and the communication pipe is communicated with the sealing cavity for connecting to the sealing cavity Filling with a filling medium to inflate the airbag; when the airbag is in a tensioned state, the outer surface of the airbag includes a top surface and two opposite first side surfaces, the first side surfaces are connected with the top surface, The top surface is an outer convex arc surface whose middle position is higher than the edge, and at least a part of the first side surface is a constricted area, and the condensed areas of the two opposite first side surfaces are away from the top surface from the top surface directions are close to each other.

In the present application, the flexible screen and the curved cover plate are attached to each other through the expansion of the airbag. In addition, the two first side surfaces of the airbag have constricted areas that are condensed from the top surface to the direction away from the top surface, so that during the process of attaching the flexible screen to the curved cover plate, two opposite edges of the flexible screen can have The larger bending angle makes it possible to well realize the bonding between the curved cover plate and the flexible screen with the bending angle larger than 70°.

In some embodiments, the outer surface of the airbag further includes two opposite second side surfaces, the second side surfaces are located between the two first side surfaces, and at least a part of the second side surface is a gathering area, which is opposite to the second side surface. The gathering areas of the two second side surfaces are close to each other in the direction away from the top surface from the top surface. In these embodiments, the two first side surfaces and the two second side surfaces of the airbag each have a constriction area condensed from the top surface to the direction away from the top surface, so that the flexible screen and the curved cover plate are adhered to each other. In the process, the four edges of the flexible screen can have a large bending angle, so that the four-curved cover and the flexible screen can be well attached with a large angle of bending angle greater than 70°.

In some embodiments, in the natural state of the airbag, the shape of the inner surface of the airbag is the same as the shape of the outer surface of the airbag base, and the inner surface of the airbag is in contact with the outer surface of the airbag base .

In some embodiments, the airbag base includes an opposite top surface, a bottom surface, and two third side surfaces disposed between and opposite to the top surface and the bottom surface, and the top surface of the airbag base faces the top surface of the airbag , the third side of the airbag base faces the first side of the airbag; at least part of the third side of the airbag base is an inclined area, the inclined area is connected with the top surface, and the two opposite The inclined area of the third side surface is gradually approached in the direction from the top surface to the bottom surface. When the inner surface of the airbag is attached to the outer surface of the airbag base, the area where the inner surface of the airbag is attached to the third side surface of the airbag base is the first side surface, and the area where the inner surface of the airbag is attached to the third side surface of the airbag base is the first side surface. The location of the sloped area of the third side surface forms the constricted area of the first side surface.

In some embodiments, two oppositely arranged fourth side surfaces are further provided between the top surface and the bottom surface, the fourth side surfaces are located between two opposite third side surfaces, and at least Part of the area is an inclined area, the inclined area is connected with the top surface, and the inclined areas of the two opposite fourth side surfaces are gradually approached from the top surface to the bottom surface. The fourth side faces the fourth side of the airbag. When the inner surface of the airbag is attached to the outer surface of the airbag base, the area where the inner surface of the airbag is attached to the fourth side surface of the airbag base is the second side surface, and the area where the inner surface of the airbag is attached to the fourth side surface of the airbag base is the second side surface. The position of the inclined area of the fourth side surface forms the constriction area of the second side surface.

In some embodiments, a transition arc surface is connected between the top surface of the airbag base and the third side surface, and the transition arc surface smoothly connects the top surface and the third side surface, so as to avoid the airbag base. The position where the top surface intersects the third side surface produces a sharp angle to pierce the airbag sleeved on the airbag base.

In some embodiments, the top surface of the airbag base is an arc-shaped surface, and the arc-shaped surface is an outwardly convex arcuate surface with a middle position higher than an edge position, so that the inner surface is in contact with the outer surface of the airbag base The area of the airbag corresponding to the top surface of the airbag base is also an arc surface.

In some embodiments, there are a plurality of the communication pipes, and the plurality of the communication pipes are provided in the airbag base, so as to save the space occupied by the fitting assembly and prevent the communication pipes from being damaged.

In a third aspect, the present application provides a method for laminating a curved cover plate and a flexible screen, including:

Fix the curved cover plate on the cover plate holder;

The clamping assembly is made to fix the carrier tape carrying the flexible screen, and the flexible screen is located on the side of the carrier tape facing the cover plate fixing seat, and the clamping assembly includes two sets of clamps arranged oppositely, The two sets of the clamping members are respectively clamped at both ends of the carrier tape, and the flexible screen is located between the two sets of the clamping members;

moving the fitting component or the clamping component along the first direction, so that the fitting component and the carrier tape are close to each other, until the airbag of the fitting component contacts the carrier tape;

Continue to move the fitting assembly or the clamping assembly in the first direction, and simultaneously move the opposite two sets of the clamping members to make the opposite two sets of the clamping members close, so that the carrier tape and the Outer surface profiling of the airbag;

Move the fitting assembly and the clamping assembly simultaneously along the first direction, or move the cover fixing base along the first direction, so that the flexible screen and the cover fixing base are close to each other until The minimum distance between the flexible screen and the curved cover is within the threshold range, and the distance between the flexible screen carried on the carrier tape and the curved cover is from the middle of the curved cover The position gradually increases to the edge;

Filling the air bag with a filling medium until the middle position of the flexible screen to the edge is gradually attached to the curved cover plate.

Through the bonding method of the curved cover plate and the flexible screen of the present application, the flexible screen is gradually bonded to the curved cover plate from the middle position to the edge position, so that the flexible screen and the curved cover plate are bonded during the bonding process. The gas will be gradually squeezed out to avoid air bubbles between the flexible screen and the curved cover.

In some embodiments, while continuing to move the fitting component or the clamping component in the first direction, the two opposite sets of the clamping members are moved at the same time so that the opposite two sets of the clamping members are close to each other, After the carrier tape is profiled with the outer surface of the airbag, it further includes:

The position of the alignment table is adjusted, and the movement of the alignment table drives the clamping assembly provided on the alignment table to move, so that the flexible screen and the curved cover plate are aligned. By aligning the flexible screen with the curved cover plate, it is ensured that the flexible screen can fit exactly in the curved cover plate when moving toward the curved cover plate along the first direction.

In some embodiments, while continuing to move the fitting component or the clamping component in the first direction, the two opposite sets of the clamping members are moved at the same time so that the opposite two sets of the clamping members are close to each other, Before making the profile of the carrier tape and the outer surface of the airbag, the steps further include:

The position of the alignment table is adjusted, and the movement of the alignment table drives the clamping assembly provided on the alignment table to move, so that the flexible screen and the curved cover plate are aligned. That is, in some embodiments of the present application, the alignment of the flexible screen and the curved cover plate may also be performed before the carrier tape and the outer surface of the airbag are profiled.

Wherein, in the adjustment of the position of the alignment table, the movement of the alignment table drives the movement of the clamping assembly provided on the alignment table, so that before the alignment of the flexible screen and the curved cover plate, the step:

The two sets of the clamping members are moved and moved away from each other to tension the carrier tape.

By tensioning the carrier tape first and then profiling the flexible screen and the outer surface of the airbag, the flexible screen can be flattened first and then profiling with the outer surface of the airbag, so that the The alignment of the flexible screen and the curved cover plate is more accurate.

In some embodiments, when the filling medium is filled into the airbag until the middle position of the flexible screen to the edge is gradually abutted on the curved cover plate, the clamping assembly is along the first direction. moving toward the cover plate fixing base. That is, the clamping assembly is moved correspondingly with the expansion of the airbag, so that the clamping assembly is moved toward the cover plate fixing base, so as to prevent the carrier tape from being broken due to a large pulling force.

In some embodiments, the method for laminating the curved cover plate and the flexible screen further includes:

moving the clamping assembly along the first direction, so that the clamping assembly is close to the cover plate fixing base, so as to release the carrier tape;

moving the airbag base so that the airbag base is away from the carrier tape;

Loosen the clamping of the carrier tape by the clamping assembly;

Detach the carrier tape from the flexible screen.

In these embodiments, the carrier tape is first loosened, and then the airbag is deflated, which can prevent the carrier tape from being suddenly released in a taut state and pulling the flexible screen. In addition, first loosening the carrier tape and then releasing the clamping of the carrier tape can avoid sudden stress change of the airbag on the flexible screen, and protect the flexible screen and the curved cover plate from damage after the lamination is completed.

In some embodiments, before the moving of the airbag base or after the movement of the airbag base, the method further comprises:

The filling medium in the balloon is released to prepare the balloon for refilling with the filling medium.

In some embodiments, before the filling of the airbag with the filling medium until the flexible screen is gradually attached to the curved cover from the middle position to the edge, the method further includes:

Close the upper cavity and the lower cavity;

The closed space formed by the closure of the upper cavity and the lower cavity is evacuated, so that the bonding process of the flexible screen and the curved cover plate is carried out in a vacuum environment, so as to avoid the adsorption of dust impurities in the air to the flexible screen It can also reduce the generation of air bubbles between the flexible screen and the curved cover.

Description of drawings

In order to illustrate the structural features and effects of the present application more clearly, the following detailed description will be given in conjunction with the accompanying drawings and specific embodiments.

FIG. 1 is a schematic structural diagram of a curved cover plate according to an embodiment of the application;

FIG. 2 is a schematic cross-sectional view of the curved cover plate described in FIG. 1 along the I-I direction;

3 is a schematic structural diagram of a curved cover plate according to another embodiment of the present application;

4 is a schematic diagram of the internal structure of a laminating device according to an embodiment of the application;

5 is a schematic structural diagram of a cover plate fixing device in the laminating device of the embodiment of FIG. 4;

FIG. 6 is a schematic diagram of a clamping member clamping a carrier tape according to an embodiment of the application;

FIG. 7 is a schematic diagram of a clamping member clamping a carrier tape according to another embodiment of the present application;

FIG. 8 is a schematic diagram of a clamping member clamping a carrier tape according to another embodiment of the application;

FIG. 9a is a schematic structural diagram of a lamination assembly and a cover plate according to an embodiment of the application;

FIG. 9b is a schematic structural diagram of a bonding assembly according to an embodiment of the present application;

Figure 10 is a schematic structural diagram of the airbag base of the fitting assembly described in Figure 9a;

11 is a schematic structural diagram of an airbag base according to another embodiment of the application;

12 is a schematic structural diagram of an airbag base according to another embodiment of the application;

13 is a schematic structural diagram of a bonding component according to another embodiment of the present application;

14 is a schematic structural diagram of a laminating device according to another embodiment of the application;

15 is a flowchart of a method for laminating a flexible screen and a curved cover plate according to an embodiment of the application;

Figure 16 is a schematic structural diagram of the carrier tape and the airbag after profiling;

17 is a schematic diagram of the positional relationship between the lamination component and the curved cover when the minimum distance between the carrier tape and the curved cover is within the threshold range;

18 is a schematic diagram of the state where the flexible screen starts to contact the curved cover plate;

FIG. 19 is a schematic diagram of the state in which the flexible screen and the curved cover plate are attached together.

Detailed ways

The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present application.

The present application provides a laminating device for laminating a flexible screen and a curved cover plate with high quality, so as to avoid defects such as bubbles or wrinkles between the flexible screen and the curved cover plate. In some embodiments of the present application, the flexible screen is a flexible display screen, and the curved cover plate is a protective cover plate for protecting the flexible display screen. It can be understood that, in some embodiments, the flexible screen may also be a flexible film layer such as a touch layer or an optical layer (a polarizing layer, an optical film layer such as an anti-reflection layer).

In the present application, the curved cover plate may be a hyperboloid cover plate or a four-curved cover plate. Please refer to FIG. 1 and FIG. 2 , which are a curved cover plate 20 according to an embodiment of the present application, and FIG. 2 is a cross-sectional view taken along the direction I-I of FIG. 1 . In an embodiment of the present application, the curved cover plate 20 is a hyperboloid curved cover plate. Specifically, it includes a flat surface 21 and arc surfaces 22 respectively located on both sides of the flat surface 21, and the arc surfaces 22 are connected with the flat surface 21. In this embodiment, the curved cover plate 20 is a curved cover plate with a bending angle greater than 70°, that is, the bending angle of the curved surface 22 relative to the flat surface 21 is greater than 70°. It can be understood that, in other embodiments of the present application, the bending angle of the arc surface relative to the flat surface 21 may be any angle. Among them, the bending angle of the arc surface 22 relative to the flat surface 21 refers to the size of the included angle α intersected by the straight surface 21 and the tangent plane of the end of the arc surface 22 away from the flat surface 21, and the included angle α is located in the plane where the flat surface 21 is located toward the curved cover plate 20 is located on the side of the tangential plane away from the curved cover plate 20 .

Please refer to FIG. 3 . FIG. 3 is a curved cover plate 20 according to another embodiment of the present application. In this embodiment, the curved cover plate 20 is a four-curved curved cover plate. The difference between the four-curved surface cover plate and the two-curved surface cover plate shown in FIG. 1 is that the four-curved curved surface cover plate further includes two newly added curved surfaces 23 , and the two newly added curved surfaces 23 are located in the The opposite sides of the flat surface 21 are located between the arc surfaces 22 on both sides of the flat surface 21 . The bending angle of the newly added arc surface 23 relative to the flat surface 21 may be the same as the bending angle of the arc surface 22 relative to the flat surface, or may be different. It should be emphasized that FIG. 3 is only a schematic diagram of the curved cover plate 20 according to an embodiment of the present application. In fact, the flat surface 21 , the curved surface 22 and the newly added curved surface 23 are all smoothly connected.

Please refer to FIG. 4 , which is a schematic structural diagram of a laminating device 100 according to an embodiment of the present application. The laminating device 100 is used for laminating the flexible screen 10 to the curved cover plate 20 . The flexible screen 10 is a flexible display screen, and the curved cover plate 20 is a hyperboloid cover plate. It can be understood that, in other embodiments of the present application, the curved cover plate 20 may also be a four-curved cover plate. The laminating device 100 includes a cover plate fixing base 31 , a clamping component 50 and a laminating component 60 . The curved cover plate 20 is fixed on the cover plate fixing base 31 . The clamping assembly 50 is used for clamping the carrier film 11 carrying the flexible screen 10 , and the flexible screen 10 is positioned between the fitting assembly 60 and the cover plate fixing base 31 . The attaching component 60 is used to press the flexible screen 10 to attach to the curved cover plate 20 .

The bonding device 100 includes an upper cavity 30a and a lower cavity 30b, and the upper cavity 30a and the lower cavity 30b can be relatively moved and matched. The combined upper cavity 30a and the lower cavity 30b can form a closed space. The cover plate fixing base 31 , the clamping component 50 and the fitting component 60 are all located in the closed space, that is, the lamination process of the flexible screen 10 and the curved cover plate 20 is located in the closed space .

In some embodiments, a sealing ring 30c is provided between the upper cavity 30a and the lower cavity 30b, so as to have a better sealing effect between the upper cavity 30a and the lower cavity 30b.

In this embodiment, the laminating device 100 further includes a bearing bracket 81 , and the lower cavity 30 b is fixed on the bearing bracket 81 . A plurality of bearing columns 82 extending along the first direction are also fixed on the bearing bracket 81, and the plurality of bearing columns 82 are respectively disposed on both sides of the upper cavity 30a and the lower cavity 30b. The bearing column 82 is provided with a guide rail arranged along its extending direction, the outer surface of the upper cavity 30a is provided with a slider 32 connected with the guide rail, and the slider 32 is connected with the first motor 71 , The sliding block 32 is driven by the first motor 71 to slide along the guide rail, so as to realize the movement of the upper cavity 30a relative to the lower cavity 30b. In this embodiment, the first motor 71 is connected to a lead screw 711 extending in the first direction, the slider 32 is connected to the lead screw 711, and the first motor 71 rotates to drive the lead screw 711 is rotated, so that the slider 32 moves along the screw rod 711, thereby realizing the movement of the upper cavity 30a relative to the lower cavity 30b. In this embodiment, there are two supporting columns 82, which are respectively disposed on opposite sides of the upper cavity 30a and the lower cavity 30b. Each of the sliders 32 is connected to a first motor 71 , and the two first motors 71 work in the same working mode, so that the motion states of both sides of the upper cavity 30a are the same, so as to maintain the upper cavity Smooth movement of the body 30a. It can be understood that, in other embodiments of the present application, each slider 32 on the upper cavity 30a can be connected to the same first motor 71, and each slider 32 is driven by the same first motor 71 to perform Synchronized movement. The first motor 71 may be a drive device such as a servo motor, an air cylinder, or the like. In this embodiment, the first motor 71 is a servo motor, which has higher control precision. It can be understood that, when the first motor 71 is other types of driving devices, the lead screw 711 can be other types of driving rods, so as to be used in conjunction with the first motor 71, so that the upper cavity 30a is connected to the lower cavity The body 30b moves relatively.

It can be understood that, in some embodiments, the bearing column 82 is provided with a guide groove extending in the first direction, the first motor 71 and the screw rod 711 are both disposed in the guide groove, and the slider 32 moves along the guide groove under the action of the screw rod 711, so as to realize the relative movement of the upper cavity 30a and the lower cavity 30b.

Further, the laminating device 100 further includes a vacuuming device, and the vacuuming device is connected with the upper cavity 30a or the lower cavity 30b, so that the closed space is evacuated by the vacuuming device. That is, the lamination process of the flexible screen 10 and the curved cover plate 20 can be carried out under vacuum conditions, thereby reducing the generation of air bubbles between the flexible screen 10 and the curved cover plate 20 during the lamination process, and ensuring the adhesion The combination process is performed in a dust-free environment to avoid impurities between the flexible screen 10 and the curved cover plate 20 .

The cover plate fixing base 31 is arranged in the upper cavity 30a. In this embodiment, the cover plate fixing base 31 is fixed in the upper cavity 30a. It can be understood that, in some other embodiments of the present application, the cover plate fixing base 31 can move in the first direction in the upper cavity 30a. In this embodiment, a fixing groove 311 is provided on the surface of the cover plate fixing base 31 facing the lower cavity 30 b , and the curved cover plate 20 is fixed in the fixing groove 311 . In some embodiments, when the curved cover plate 20 is fixed in the fixing groove 311 , the outer surface of the curved cover plate 20 is attached to the inner surface of the fixing groove 311 , that is, the curved cover plate 20 can be just embedded in the fixing groove 311 , so as to ensure that the curved cover 20 is not easily damaged when the flexible screen 10 fits into the curved cover 20 and exerts force on the curved cover 20 .

Specifically, please refer to FIG. 5 , which is a schematic structural diagram of the cover plate fixing base 31 according to an embodiment of the present application. The cover plate fixing base 31 includes a bearing plate 316 and two parallel fixing plates 312 disposed on the bearing plate 316 . Each of the fixing plates 312 is provided with a limiting protruding strip 313 . The limiting protruding strips 313 on the two fixing plates 312 are parallel. In this embodiment, the two fixing plates 312 can be moved relatively to approach or move away from each other, so as to change the distance between the limiting protruding strips 313 on the two fixing plates 312 . Further, one side of the two fixing plates 312 is provided with fixing protruding strips 314 , and the length direction of the fixing protruding strips 314 is perpendicular to the length direction of the limiting protruding strips 313 . The other sides of the two fixing plates 312 are provided with movable protruding strips 315 , the movable protruding strips 315 can move toward or away from the fixed protruding strips 314 , and the movable protruding strips 315 and the fixed protruding strips 314 parallel. In this embodiment, the area enclosed by the two limiting protruding strips 313 , the fixing protruding strips 314 and the movable protruding strips 315 is the fixing groove 311 . In other words, the curved cover plate 20 is disposed between the two limiting protruding strips 313 and between the fixed protruding strips 314 and the movable protruding strips 315 . Moreover, according to the actual size of the curved cover plate 20 , the distance between the two limiting protruding strips 313 and the distance between the movable protruding strip 315 and the fixing protruding strip 314 can be adjusted so as to pass the two The limiting protruding strips 313 , the movable protruding strips 315 and the fixing protruding strips 314 are clamped to fix the curved cover plate 20 .

Further, in some embodiments, the surfaces of the limiting protruding strips 313 , the movable protruding strips 315 and the fixing protruding strips 314 facing the fixing groove 311 are all provided with buffer members to provide buffer space and avoid restricting. The curved cover plate 20 is damaged when the positioning protruding strips 313 , the movable protruding strips 315 and the fixed protruding strips 314 are clamped. In an embodiment of the present application, the buffer member is a rubber member, which provides a buffer space while increasing the friction between the limiting protruding strips 313 , the movable protruding strips 315 , the fixed protruding strips 314 and the curved cover plate 20 , so as to achieve more Good fix.

Please refer to FIG. 4 again, the lower cavity 30b is provided with a clamping component 50 and a fitting component 60 . In this embodiment, the clamping assembly 50 includes two sets of clamping members 51 and a first driving portion that drives the clamping members 51 to move. The two sets of the clamping members 51 are located on opposite sides of the fitting assembly 60 . The two sets of the clamping members 51 are respectively clamped on both sides of the carrier film 11 carrying the flexible screen 10 , so that the flexible screen 10 is located between the fitting assembly 60 and the cover fixing base 31 . in between, the flexible screen 10 can be attached to the curved cover 20 by driving the attaching component 60 to move relative to the curved cover 20 . The first driving part is used to drive the clamping member 51 to loosen or clamp the carrier tape 11 , and to drive the clamping member 51 to move.

In this embodiment, the curved cover plate 20 is a hyperboloid cover plate. Please refer to FIG. 4 and FIG. 6 , two sets of the clamping members 51 are clamped on both sides of the flexible screen 10 corresponding to the two arc surfaces 22 of the curved cover plate 20 , so that the clamping members 51 can be Drive the flexible screen 10 to bend corresponding to one side of the two curved surfaces 22 of the curved cover plate 20 , so as to prevent the edge of the flexible screen 10 from being pasted before the curved surface edge of the curved cover plate 20 during the bonding process The problem is that it is difficult to discharge air bubbles.

Please refer to FIG. 3 and FIG. 7 , when the curved cover plate 20 is a four-curved cover plate as shown in FIG. 3 , there are four sets of the clamping members 51 , which are respectively clamped on the flexible screen 10 corresponding to the One side of the two curved surfaces 22 and the two newly added curved surfaces 23 of the curved cover plate 20 , so that the clamping member 51 can drive the flexible screen 10 to correspond to the two curved surfaces of the curved cover plate 20 . 22 and one side of the two newly added curved surfaces 23 are bent to prevent the edge of the flexible screen 10 from contacting the curved cover plate 20 first, thereby avoiding the generation of air bubbles during the lamination process.

Further, in some embodiments of the present application, two sets of the clamping members 51 are symmetrically arranged on both sides of the flexible screen 10 , so that when the clamping members 51 move away from the carrier film 11 , the two sets of clamping members 51 are arranged symmetrically. The direction of force applied by the holding member 51 to pull the carrier film 11 is on the same straight line, so as to avoid the problem that the direction of force applied by the holding member 51 to the carrier film 11 is not collinear and the carrier film 11 is torn.

Each set of the clamping members 51 may have one or more clamping members 51 . Please refer to FIG. 6 , which is a schematic diagram of the flexible screen 10 being clamped by the clamping member 51 according to an embodiment of the present application. In this embodiment, each set of the clamping members 51 is one.

The clip 51 can be any type of clip. In this embodiment, each of the clamping members 51 includes a lower clamping plate 511 and an upper clamping plate 512 , and the upper clamping plate 512 can move relative to the lower clamping plate 511 to release or clamp the carrier film 11 . In this embodiment, the lower clamping plate 511 is connected to the support table 516 through a support rod 515 extending along the first direction. The support rod 515 is provided with a slide rail arranged along the extending direction of the support rod 515 . The upper clamping plate 512 is connected to the second motor 72 of the first driving part, and can slide along the slide rail on the support rod 515 under the driving of the second motor 72, so that the upper clamping plate 512 can move toward or away from The lower clamping plate 511 moves, the carrier tape 11 is set between the upper clamping plate 512 and the lower clamping plate 511, and the second motor 72 drives the movement of the clamping plate of the upper clamping plate 512 relative to the lower clamping plate 511 to clamp or loosen the carrier. Band 11. The upper clamping plate 512 and the lower clamping plate 511 are both connected to the support table 516 . The third motor 73 of the first driving part of the support table 516 is connected to drive the support table 516 to move in the second direction through the third motor 73, so that the motor connected to the support table 516 is The clamping member drives the flexible screen 10 to move in the second direction. The second direction is perpendicular to the first direction. In this embodiment, the third motor 73 drives the two clamping members 51 located on both sides of the flexible screen 10 and disposed opposite to each other so as to be able to approach or move away from each other synchronously.

Further, in some embodiments, a buffer member 517 is provided on the surface of the upper plate 512 and the lower plate 511 in contact with the carrier tape 11 , so as to enhance the relationship between the upper plate 512 and the lower plate 511 and the carrier tape 11 through the buffer member 517 . The friction between them increases the clamping effect. At the same time, damage to the carrier tape 11 by the upper clamping plate 512 and the lower clamping plate 511 is avoided. In this embodiment, the buffer member 517 may be made of elastic materials such as rubber.

Please refer to FIG. 4 and FIG. 6 together. In this embodiment, the splint of the upper splint 512 and the splint of the lower splint 511 are both elongated plates, and their length direction is greater than or equal to that of the clamping member 51 to clamp the carrier film The length of the carrier film 11 at the 11 position, so that when the clamping member 51 pulls the carrier film 11 for tensioning, each position of the carrier film 11 can be tensioned.

Further, please refer to FIG. 4 again. In this embodiment, the lower clamping plate 511 is further provided with a positioning column 513 . The positioning column 513 is a columnar structure protruding from the surface of the lower clamping plate 511 facing the upper clamping plate 512 , and the edge of the carrier film 11 is provided with openings corresponding to the positioning column 513 . When the holding member 51 clamps the carrier film 11 , the fixing member 513 penetrates through the opening of the carrier film 11 , so as to realize the positioning of the carrier film 11 on the holding member 51 . In addition, the upper clamping plate 511 is also provided with fixing grooves 514 (or openings 514 ) corresponding to the positioning posts 513 . When the clamping member 51 clamps the carrier film 11 , the positioning posts 513 are inserted into the fixing grooves or openings of the upper clamp plate 511 , so that the lower clamp plate 511 and the upper clamp plate 512 can clamp the support film 11 . , and at the same time, the positioning of the lower clamping plate 511 and the upper clamping plate 512 can be realized.

Further, in this embodiment, the laminating device 100 further includes an alignment table 40 , and the clamping assemblies 50 are all disposed on the alignment table 40 and move with the alignment table 40 . The alignment stage 40 moves to drive the flexible screen 10 to align with the curved cover plate 20 . Specifically, the alignment stage 40 is a UVW platform, which can move in the second direction and the third direction and rotate with the line in the first direction as the axis under the driving of . The third direction is perpendicular to the second direction, and the plane where the second direction and the third direction are located is parallel to the plane where the flexible screen 10 is located. Through the movement and rotation of the alignment table 40 , the clamping member 51 provided on the alignment table 40 can be driven to move synchronously, and the clamping member 51 can also drive the flexible screen 10 carried on the carrier film 11 to synchronize. sports. Therefore, the alignment table 40 can drive the flexible screen 10 to move to realize the positioning of the flexible screen 10 and the curved cover plate 20, so that the projection of the flexible screen 10 on the curved cover plate 20 covers the curved cover plate 20, That is, the flexible screen 10 can just fit inside the curved cover plate 20 after moving in the first direction.

In this embodiment, the support table 516 for supporting each of the clamping members 51 is connected to the fourth motor 74 of the first driving part through the support column 52 and is fixed on the alignment table 40 . The supporting column 52 is connected with the driving rod of the fourth motor 74, so that the fourth motor 74 drives the clamping member 51 to move in the first direction through the supporting column 52, so that the clamping member 51 can drive the flexible screen 10 to move in the first direction. It can be understood that, in this embodiment, there are two fourth motors 74 , and each of the fourth motors 74 is connected to a group of the clamping members 51 . The two fourth motors 74 can drive two sets of the clamping members 51 to move in the first direction at the same pace, so as to keep the flexible screen 10 moving smoothly. In this embodiment, the two fourth motors 74 are motors of the same type and power, so as to drive the two groups of the clamping members 51 to move in the first direction at the same pace.

When the alignment table 40 moves, the clamping assembly 50 can drive the flexible screen 10 to move in the second direction, move in the third direction, or rotate around the line in the first direction, so that the flexible screen 10 can be adjusted. position to realize the positioning of the flexible screen 10 and the curved cover plate 20 . Specifically, in this embodiment, before the flexible screen 10 and the curved cover plate 20 are aligned, the position information of the flexible screen 10 and the curved cover plate 20 is obtained through the CCD camera, and the position information of the flexible screen 10 and the curved cover plate 20 is obtained through the CCD camera. The distance in the direction in which the alignment stage 40 needs to be moved and/or rotated is calculated, so as to position the flexible screen 10 and the curved cover plate 20 .

In this embodiment, the alignment stage 40 is all located in the bearing bracket 81 , and the bearing bracket 81 protects the structure inside it, and can minimize the airtightness formed by the upper cavity 30a and the lower cavity 30b The number of structural components in the space can be reduced as much as possible, thereby reducing the volume of the confined space and reducing the time and power consumption required for vacuuming. In addition, in this embodiment, the driving structure (such as the second motor 72, the third motor 73, the fourth motor 74, etc.) that drives the movement of the fitting assembly 60 and the clamping assembly 50 can be arranged outside the sealed space, so as to Minimize the volume of confined spaces. In this embodiment, the driving structure inside and outside the sealed space is connected with the fitting component 60 and the clamping component 50 through a driving rod (eg, a support rod 52 ). Wherein, a vacuum bellows is sleeved on the outside of the driving rod, so that when the driving rod passes through the cavity wall of the upper cavity 30a or the lower cavity 30b, the kinetic energy of the driving rod is transmitted to the fitting assembly 60 and the clamping assembly 50 at the same time. , to maintain a vacuum environment in a confined space.

Please refer to FIG. 9a. FIG. 9a is a schematic structural diagram of the lamination component 60 and the curved cover plate 20 according to an embodiment of the present application. The fitting assembly 60 includes an airbag base 61 , an airbag 62 and a communication pipe 612 . The second driving part 75 may also be a motor or an air cylinder. The airbag base 61 and the second driving part 75 are connected by a driving rod 64 , and the second driving part 75 drives the airbag base 61 to move in a first direction through the driving rod 64 to move away from or close to the sealing cover The panel is fixed to the base 31 , so that the flexible screen 10 located between the fitting assembly 60 and the cover fixing base 31 is pressed against the curved cover 20 by the movement of the airbag base 61 . In this embodiment, the second driving portion 75 is fixed on the upper wall surface of the bearing bracket 81 . It can be understood that, the second driving part 75 can also be fixed to other positions of the bearing bracket 81 . For example, a hole may be provided on the alignment table 40 , and the second driving portion 75 may be provided on the lower wall surface of the bearing bracket 81 through the hole of the alignment table 40 . The airbag 62 is sleeved on the airbag base 61 , a sealing cavity is formed between the airbag 62 and the airbag base 61 or inside the airbag 62 , and the communication pipe 612 communicates with the sealing cavity for connecting to the airbag base 61 . The sealing cavity is filled with a filling medium to expand the airbag 62 and change the size of the sealing cavity.

It can be understood that, in other embodiments of the present application, the fitting assembly 60 is fixed in the lower cavity 30b, that is, the fitting assembly 60 cannot move in the lower cavity 30b. The cover plate fixing base 31 can be movably arranged in the upper cavity 30a, that is, the cover plate fixing base 31 is connected to the motor, and can move along the first direction under the driving of the motor to approach or move away from the sticker. assembly 60.

In this application, the filling medium may be gas or liquid. In this embodiment, the filling medium is gas. In another embodiment of the present application, the filling medium is liquid, and by filling the liquid into the air bag, the air bag 62 can be inflated, so as to realize the bonding operation of the flexible screen of the present application. At the same time, since the bonding process of the flexible screen 10 and the curved cover plate 20 of the present application is performed in a vacuum, when liquid is used as the filling medium, the airbag 62 can be better controlled than when liquid is used as the filling medium It can avoid the problem that the airbag 62 expands too much and bursts during the fitting process. Further, in the present application, the temperature of the filling medium flowing into the airbag 62 can be controlled to improve the bonding efficiency. For example, in an embodiment of the present application, the flexible screen 10 and the curved cover plate 20 are pasted by adhesive. When the filling medium has a certain temperature, the adhesive can be more easily pasted to the flexible screen 10 and the curved surface. cover plate 20. In some embodiments, after the lamination process is completed, the higher-temperature filling medium in the airbag 62 may also be released, and the lower-temperature filling medium may be refilled, so that the adhesive can be cured quickly and the lamination efficiency is accelerated. Specifically, in the present application, the filling medium for gas may be gas such as air, nitrogen, and the like; the filling medium for liquid may be water or the like.

In this embodiment, a sealed cavity is formed between the airbag 62 and the airbag base 61 . Specifically, after the airbag 62 is sleeved on the airbag base 61 , the airbag 62 is fixed on the airbag base 61 by the fixing clip 63 and sealed with the airbag base 61 . In this embodiment, the fixing clip 63 is a fixing ring with an adjustable size. After the air bag 62 is sleeved on the air bag base 61 through the opening 621 on one side, the fixing ring is sleeved on the edge of the opening 621 of the air bag 62 to fix the air bag 62 to the air bag 62 through the fixing ring. on the airbag base 61 . In addition, the airbag 62 is formed of an elastic material such as rubber. When the fixing ring is tightened, the airbag 62 can be fixed on the airbag base 61 and the airbag 62 can be sealed at the same time. At this time, the space between the inner surface of the airbag 62 and the outer surface of the airbag base 61 is the sealed cavity, and the size of the sealed cavity will change correspondingly with the volume of the filling medium filled.

Further, in some embodiments of the present application, the waist ring of the airbag base 61 is provided with a fixing groove 611 , and when the airbag 62 is fixed on the airbag base 61 , the fixing ring is recessed in the fixing groove 611, so that the airbag 62 has a better sealing effect.

In the present application, when the cover plate fixing base 20 and the fitting assembly 60 are relatively moved to the pre-fitting position, after the air bag 62 is in a tensioned state, the air bag 62 and the curved cover plate 20 The distance L increases gradually from the middle position of the curved cover plate 20 to the edge of the curved cover plate 20 , so that when the airbag 10 continues to expand for the fitting process, it can first connect with the surface of the curved cover plate 20 . The middle position first contacts, and then gradually contacts the edge position of the curved cover plate 20 , so that the flexible screen 10 and the curved cover plate 20 are brought together by the airbag 62 during the bonding process of the flexible screen 10 and the curved cover plate 20 . The bonding process of 20 is from the middle position of the curved cover plate 20 to the edge position of the curved cover plate 20 gradually, which does not cause the problem that the flexible screen 10 and the edge position of the curved cover plate 20 first contact and make it difficult to discharge air bubbles. Wherein, that the airbag 62 is in a tension state means that the surface of the airbag 62 is flat without shrinkage, and the surface of the airbag 62 begins to have tension or has a certain tension state. When the cover plate fixing base 20 and the attaching component 60 relatively move to the pre-attachment position, the flexible screen 10 and the curved cover plate 20 begin to contact. The distance L between a certain position on the outer surface of the airbag 10 and the curved cover plate 20 refers to the distance between the outer surface of the airbag 10 and the inner surface of the curved cover plate 20 in the direction perpendicular to the position of the outer surface of the airbag 10 . The distance between them, wherein the direction perpendicular to the outer surface of the airbag 10 is the inflation direction of the airbag 10 .

Please refer to FIG. 18 . FIG. 18 is a schematic diagram of the flexible screen 10 and the curved cover plate 20 when they start to come into contact. When the cover plate fixing base 31 and the fitting assembly 60 relatively move to the pre-fitting position, the air bag 62 is slightly inflated, and the outer surface of the air bag 62 includes the top surface 62a and the top surface. 62a connects the two first sides 62b. The top surface 62a is an outer convex arc surface whose middle position is higher than the edge, and at least a part of the first side surface 62b is a condensed area. The directions away from the top surface 62a approach each other, that is, the distance between the condensed regions of the two opposite first side surfaces 62b gradually decreases from the top surface 62a to the direction away from the top surface 62a. At this time, the distance L between the outer surface of the airbag 62 and the curved cover plate 20 gradually increases from the middle position of the curved cover plate 20 to the edge of the curved cover plate 20 . In addition, in this embodiment, since the two first side surfaces 62b have a gathering area that is gathered from the top surface to the direction away from the top surface, the carrier tape 11 with the flexible screen 10 is attached to the surface of the airbag 62 and is connected with the airbag. During 62 profiling, the edge of the flexible screen 10 can have a large bending angle, so that the curved cover 20 and the flexible screen 10 can be well adhered with a large angle of bending angle greater than 70°.

In this embodiment, the curved cover plate 20 is a hyperboloid cover plate, and the middle position of the curved cover plate 20 refers to the position where the symmetry line of the top surface 21 of the curved cover plate 20 is located, and the symmetry line of the top surface 21 is located. is the length direction (ie, the third direction) of the curved cover plate 20 . At this time, when the flexible screen 10 is attached to the curved cover 20 , the flexible screen 10 is gradually attached to the flexible screen 10 from the position of the symmetry line of the top surface 21 of the curved cover 20 to the direction of the two arc surfaces 22 . At this time, the cross-sectional contour of the top surface 62a of the airbag 62 in the width direction (ie, the second direction) is parabolic, and the cross-sectional contour in the longitudinal direction is straight.

When the curved cover plate 20 is a four-curved cover plate, the middle position of the curved cover plate 20 may refer to the position where the symmetry line of the top surface 21 is located. The direction of the symmetry line of the top surface 21 of the cover plate 20 to the two arc surfaces 22 is gradually attached to the flexible screen 10 . At this time, the cross-sectional contour of the top surface 62a of the airbag 62 in the width direction (ie, the second direction) is parabolic, and the cross-sectional contour in the longitudinal direction is straight.

In some other embodiments, when the curved cover plate 20 is a four-curved cover plate, the middle position of the curved cover plate 20 may also refer to the position where the center point of the top surface 21 of the curved cover plate 20 is located. , when the flexible screen 10 is attached to the curved cover plate 20 , the flexible screen 10 is gradually attached to the curved cover plate 20 from the center point of the top surface 21 of the curved cover plate 20 to the surrounding. At this time, the cross-sectional profile of the top surface 62a of the airbag 62 in the width direction (ie, the second direction) is parabolic, and the cross-sectional profile in the longitudinal direction is also parabolic.

When the curved cover plate 20 is a four-curved cover plate, the airbag 20 further includes two opposite second side surfaces, the second side surfaces are located between the two first side surfaces, and the second side surfaces at least Part of the area is a gathering area, and the gathering areas of the two opposite second side surfaces are close to each other in a direction away from the top surface from the top surface.

Please refer to FIG. 9b. FIG. 9b is a schematic structural diagram of a bonding component 60 according to another embodiment of the present application. In the fitting assembly 60 of other embodiments of the present application, the airbag 62 may itself be a sealing structure with a sealed cavity, and a part of the surface of the airbag 62 that is sealed is pasted and fixed on the airbag base 61 . At this time, the inside of the airbag 62 forms a sealed cavity. The communication pipe 612 passes through the cavity wall of a part of the airbag that is pasted and fixed on the airbag base 61 to communicate with the sealed cavity of the airbag 62 .

A plurality of communication pipes 612 are all disposed in the airbag base 61 to save the space occupied by the fitting assembly 60 and prevent the communication pipes 612 from being damaged. Further, in some embodiments of the present application, the outlet of the communication pipe 612 is located on the surface of the airbag base 20 , and the outlets of the plurality of communication pipes 612 are evenly distributed on the airbag base 612 by the airbag 62 . Covered surface, so that the filling medium can pass into the air bag 62 uniformly.

Please refer to FIG. 9 a again. In this embodiment, the airbag 62 is sleeved on the airbag base 61 , and after the airbag 62 is sleeved on the airbag base 61 , the airbag 62 is not filled. When filling the filling medium, the inner wall of the airbag 62 can just fit the outer surface of the airbag base 61 , or the airbag 62 is slightly tensioned after being sleeved on the airbag base 61 . The surface of the air bag 62 is flat without shrinkage. That is, the size and shape of the inner surface of the airbag 62 are substantially the same as the size and shape of the outer surface of the airbag base 61 , so as to control the deformation of the airbag 62 . In this embodiment, when the sealed cavity is not filled with a medium, the volume of the sealed cavity is zero. It can be understood that, in some other embodiments of the present application, after the airbag 62 is sleeved on the airbag base 61, the airbag 62 is not filled with the filling medium, that is, the airbag 62 is not filled with the filling medium. In the natural state, the surface of the airbag 62 shrinks, and there is a gap between the inner surface of the airbag 62 and the outer surface of the airbag base 61 . In these embodiments, when a filling medium is filled into the airbag 62 to make the surface of the airbag tensed, and the cover plate fixing base 31 and the fitting assembly 60 are relatively moved to the pre-fitting position, the outer surface of the airbag 62 The distance from the curved cover plate 20 gradually increases from the middle position of the curved cover plate 20 to the edge position, so as to ensure that when the flexible screen 10 is attached to the curved cover plate 20, the flexible screen 10 and the curved cover plate 20 are in contact with the middle position first. The flexible screen 10 is gradually fitted from the middle position to the edge of the curved cover plate 20 .

In this embodiment, the airbag base 61 is a trapezoid-like structure, and the wall thickness of each position of the airbag 62 is the same. Please refer to FIG. 10 , which is a schematic structural diagram of the airbag base 61 according to an embodiment of the present application. The airbag base 61 includes a top surface 61a, a bottom surface 61b opposite to the top surface 61a, and two third side surfaces 61c located between the top surface 61a and the bottom surface 62b and disposed opposite to each other. In this embodiment, when the curved cover plate 20 is fixed on the cover plate fixing base 31 , the top surface 61 a is opposite to the flat surface 21 of the curved cover plate 20 , and the two side surfaces 61 c are respectively opposite to the flat surface 21 of the curved cover plate 20 . The two curved surfaces 22 of the curved cover plate 20 are opposite to each other, that is, the top surface 61a faces the flat surface 21 , one third side surface 61c faces one of the curved surfaces 22 , and the other third side surface 61c faces the other Curved surface 22. Also, please refer to FIG. 18 , when the cover fixing base 31 and the fitting assembly 60 are relatively moved to the pre-fitting position, the top surface 61a of the airbag base 61 faces the top surface 62a of the airbag , the third side surface 61c of the airbag base 61 faces the first side surface 62b of the airbag 62 . It can be understood that, in other embodiments of the present application, when the curved cover plate 20 is a four-curved cover plate, the airbag base 61 further includes two oppositely arranged fourth side surfaces, and the fourth side surfaces It is located between the two third side surfaces 61c, and each of the fourth side surfaces is opposite to one of the newly added curved surfaces 23, that is, one of the fourth side surfaces faces a newly added curved surface 23, and the other The fourth side faces another newly added arc surface 23 . Moreover, the fourth side surface of the airbag base 61 faces the second side surface of the airbag 62 .

In this embodiment, the top surface 61 a is an outer convex arc surface facing the curved cover plate 20 . The height of the top surface 61a located in the middle of the two third side surfaces 61c is the highest, that is, the position of the top surface 61a located in the middle of the two third side surfaces 61c is the closest to the curved cover plate 20. The distance between the middle position of the surface 61a to the edge and the curved cover 20 gradually increases, so that when the airbag base 61 drives the airbag 62 to move to gradually approach the curved cover 20, the airbag 62 can drive the flexible The screen 10 is first in contact with the middle position of the curved cover plate 20, and then the middle position to the edge position of the curved cover plate 20 is gradually attached to the flexible screen 10, so as to prevent the edge position of the curved cover plate 20 from being firstly attached to the flexible screen 10. The problem is that the gas between the curved cover plate 20 and the flexible screen 10 is not easily discharged to form air bubbles.

In this embodiment, at least a partial area of the third side surface 61c extending from the top surface 61a to the bottom surface 61b is an inclined area, and the inclined areas of the two third side surfaces 61c gradually extend from the top surface 61a to the bottom surface 61b. near. Specifically, the inclined region may be a plane or a curved surface.

In this embodiment, the inclined area is a plane, and the angle β formed by the intersection of the plane where the inclined area is located and the flat surface 21 of the curved cover plate 20 is an acute angle. In this embodiment, the flat surface 21 of the curved cover plate 20 is parallel to the tangent plane of the apex of the top surface 61a, that is, the angle β formed by the inclined region and the tangent plane of the apex of the top surface 61a is an acute angle. The angle β is located on the side of the tangent plane of the vertex of the top surface 61 a facing the airbag base 61 and the plane where the inclined area is located faces the side of the airbag base 61 . In this embodiment, the angle β formed by each position of the third side surface 61c and the tangent plane of the vertex of the top surface 61a is an acute angle, that is, the area where the third side surface 61c is located is the inclined area. Since the inclined area is gradually inclined toward the inside of the airbag base 61 in the direction from the top surface 61 a to the bottom surface 61 b , when the carrier film 11 supports the flexible screen 10 to cover the surface of the airbag 62 , the clamping member 51 can clamp the carrier film 11 . Approaching the inclined area, the two ends of the flexible screen 10 carried on the carrier film 11 can be bent at a large angle, so that when the curved cover plate 20 is a curved cover plate with a bending angle greater than 70°, the flexible screen 10 can be avoided. It is difficult to discharge the air bubbles generated by the edge contacting the curved cover plate 20 first. It can be understood that, when the curved cover plate 20 is a four-curved cover plate, the fourth side surface of the airbag base 61 may also include the inclined area, so as to achieve a higher quality fitting effect.

Please refer to FIG. 11 and FIG. 12 , a partial area of the third side surface 61 c is the inclined area, and the inclined area is close to the top surface 61 a and connected to the top surface 61 a . The inclined area is an arc surface, and the angle β formed by the intersection of the tangent plane at any position of the inclined area and the flat surface 21 of the curved cover plate 20 is an acute angle. In this embodiment, the flat surface 21 of the curved cover plate 20 is parallel to the tangent plane of the apex of the top surface 61a, that is, the angle β formed by the inclined region and the tangent plane of the apex of the top surface 61a is an acute angle. The angle β is located on the side of the tangent plane of the vertex of the top surface 61 a facing the airbag base 61 and the plane where the inclined area is located faces the side of the airbag base 61 .

Further, in the present application, the top surface 61a and the third side surface 61c are connected by a transition arc surface 61d, so as to avoid sharp corners on the airbag base 61 and puncture the sleeve on the airbag base. The case of the airbag 62 on the seat 61. In some embodiments of the present application, the radius of curvature of the transition arc surface 61d is greater than or equal to 3 mm. When the curved cover plate 20 is a four-curved cover plate, the top surface 61a and the fourth side surface can also be connected by a transition arc surface 61d.

In each of the embodiments shown in FIGS. 10 to 12 , the wall thicknesses of the airbag 62 are equal at each position, and the top surface 61 a of the airbag base 61 is an outwardly convex arc surface toward the curved cover plate 20 , so that the When the cover plate fixing base and the fitting assembly move relatively to the pre-fitting position, the distance between the outer surface of the airbag 62 and the curved cover plate 20 after tensioning gradually increases from the middle position to the edge of the curved cover plate 20 . Therefore, when the airbag 62 is gradually inflated to fit the flexible screen 10 carried thereon to the curved cover 20, the flexible screen 10 can be gradually fitted with the curved cover 20 from the middle to the edge, so as to avoid flexibility Air bubbles are generated between the screen 10 and the curved cover plate 20 . It can be understood that, in some embodiments of the present application, the wall thickness of the airbag 62 gradually decreases from the region corresponding to the middle position of the flat surface 21 to the region corresponding to the edge position of the flat surface 21 . , at this time, the top surface of the airbag base 61 may be a convex arc surface, a flat surface or a slightly concave surface facing the curved cover plate 20 . When the airbag 62 is sleeved on the airbag base 62 and the airbag 62 When the inner surface of the airbag 62 is attached to the surface of the airbag base 61, and the cover plate fixing base 31 and the attaching component 60 are relatively moved to the pre-attached position, the outer surface of the airbag 62 and the curved cover plate 20 The distance gradually increases from the middle position of the curved cover plate 20 to the edge position.

Please refer to FIG. 13 , which is a schematic structural diagram of the airbag base 61 according to an embodiment of the present application. The difference between the airbag base of this embodiment and the airbag base shown in FIG. 10 is that the top surface 61a is a plane, and the wall thickness of the airbag 62 extends from the area corresponding to the middle position of the top surface 61a to the The direction of the area corresponding to the edge position of the top surface 61a is gradually reduced, so that when the cover plate fixing base 31 and the fitting assembly 60 are relatively moved to the pre-fitting position, the distance between the airbag 62 and the curved cover plate 20 It gradually increases from the middle position to the edge position, so that the flexible screen 10 carried on the airbag 62 can be gradually attached from the middle position to the edge position, so as to avoid the generation of air bubbles during the attaching process.

Further, in some embodiments of the present application, the upper cavity 30a and/or the lower cavity 30b is provided with a viewing window, and when the flexible screen 10 is attached to the curved cover 20, the curved cover 20 The projection on the plane where the viewing window is located is located within the scope of the viewing window, so that the complete bonding process can be observed through the viewing window, so as to be easily observed to know whether there is a problem in the bonding process. Please refer to FIG. 14 , which is a schematic structural diagram of a laminating device 100 according to an embodiment of the present application. In this embodiment, the upper cavity 30a is provided with a first viewing window 91, and the lower cavity 30b is provided with a second viewing window 92. The orthographic projection of the curved cover plate 20 fixed on the cover plate fixing base 31 on the first viewing window 91 is located in the first viewing window 91 . The orthographic projection refers to the projection of the parallel projection line perpendicular to the plane where the first viewing window 91 is located.

Specifically, in the present application, the laminating device 100 further includes a camera structure, and the camera structure is located outside the closed space formed by the upper cavity 30a and the lower cavity 30b, so as to facilitate observation through the viewing window The process of laminating the flexible screen 10 and the curved cover plate 20 in the airtight interior.

Further, please refer to FIG. 4 and FIG. 14 , the bonding device 100 further includes a pressure sensor 34 . In this embodiment, the pressure sensor 34 is located on the outer surface of the upper cavity 30a away from the lower cavity 30b, and is used to detect the curved cover when the flexible screen 10 is attached to the curved cover 20 The pressure to which the plate 20 is subjected. Specifically, when the flexible screen 10 is attached to the curved cover plate 20 , the airbag 62 expands to push the flexible screen 10 to be pressed against the curved cover plate 20 , thereby generating a force on the curved cover plate 20 . The applied force is transmitted to the pressure sensor 34 from the upper cavity 30a. The pressure and pressure change speed of the curved cover plate 20 when the flexible screen 10 is attached to the curved cover plate 20 are detected by the pressure sensor, so as to adjust the volume and speed of the filling medium in the air bag 62 to ensure that for a better fit.

It can be understood that, in some embodiments, when the cover fixing base 31 can move relative to the upper cavity 30a, the pressure sensor 34 can be provided on the side of the cover fixing base 31 away from the lower cavity 30b and between the inner walls of the upper cavity 30a. At this time, when the flexible screen 10 is attached to the curved cover plate 20, the force generated by the airbag 62 on the curved cover plate 20 can be transmitted to the pressure sensor 34, so that the pressure sensor 34 detects the connection between the flexible screen 10 and the curved cover plate 20. The pressure on the curved cover plate 20 when the curved cover plate 20 is attached.

Please refer to FIG. 15 and FIG. 4 . FIG. 15 shows a flow chart of laminating the flexible screen 10 and the curved cover plate 20 according to an embodiment of the present application. Specifically, in an embodiment of the present application, the flexible screen 10 and the curved cover plate 20 are bonded by the bonding device 100 shown in FIG. 4 . The bonding method of the flexible screen 10 and the curved cover plate 20 specifically includes:

Step 110 : attach the flexible screen 10 to the carrier tape 11 .

Specifically, in this embodiment, the flexible screen 10 is attached to the middle position of the carrier tape 11 through an adhesive layer. It can be understood that, in other embodiments of the present application, the flexible screen 10 may also be attached to the carrier tape 11 in other ways.

Step 120 : Fix the curved cover plate 20 on the cover plate fixing seat 31 .

Place the curved cover plate 20 in the fixing groove 311 of the cover plate fixing base 31, and adjust the distance between the two fixing plates 312 and the distance between the movable convex strip 315 and the fixed convex strip 314, so that the movable convex strip 315, The fixing protruding strips 31 and the limiting protruding strips 313 of the two fixing plates 312 clamp both sides of the curved cover plate 20 . In this embodiment, the curved cover plate 20 is a hyperboloid cover plate, and the limiting protruding strips 313 are clamped on both sides of the arc surface 22 of the curved cover plate 20 .

Step 130 : Fix the carrier tape 11 carrying the flexible screen 10 on the clamping assembly 50 , and the flexible screen 10 is located on the side of the carrier tape 11 facing the cover plate fixing base 31 . The clamping assembly 50 includes two sets of clamping members 51 arranged opposite to each other. As shown in FIG. 6 , two sets of the clamping members 51 are respectively clamped at both ends of the carrier tape 11 , and the flexible screen 10 is located between the two sets of the clamping members 51 .

The upper clamping plate 512 is driven by the second motor 72 to move forward in the first direction so as to be away from the lower clamping plate 511 . Posts 513 pass through openings in carrier tape 11 . The clamping plate that drives the upper clamping plate 512 moves in the negative direction of the first direction to move toward the lower clamping plate 511 , so that the carrier tape 11 is clamped by the upper clamping plate 512 and the lower clamping plate 511 .

It can be understood that steps 110, 120 and 130 may be exchanged in any order. In some embodiments, step 110 may also be omitted. In step 130 , the end of the carrier tape 11 carrying the flexible screen 10 is fixed by the clamping assembly 50 .

It can be understood that, when the curved cover plate 20 is a four-curved cover plate, the clamping assembly 50 includes four sets of clamping members 51 that are disposed opposite to each other. As shown in FIG. 7 , four sets of clamping members 51 are respectively clamped on the four sides of the carrier tape 11 . The specific clamping method is the same as when the curved cover plate 20 is a hyperboloid cover plate, and will not be described again.

Step 140 : Move the two sets of the clamping members 51 and move the two sets of the clamping members 51 away from each other to tension the carrier tape 11 .

The third motor 73 drives the clamping members 51 to move in the second direction, so that the two sets of clamping members 51 are separated from each other, thereby tensioning the carrier tape 11 . By tensioning the carrier tape 11, the flexible screen 10 attached to the carrier tape 11 is flattened.

It can be understood that when the curved cover plate 20 is a four-curved cover plate, the clamping members 51 located on opposite sides of the carrier tape 11 are far away from each other, so that the four sets of clamping members 51 are far away from each other, so that the flexible screen 10 is flattened. .

Step 150 : Adjust the position of the alignment stage 40 to align the flexible screen 10 with the curved cover plate 20 .

The alignment means that the orthographic projection of the flexible screen 10 on the curved cover plate 20 is located in the curved cover plate 20 , so as to ensure that the flexible screen 10 can be moved to the curved cover plate 20 in the first direction. Fitted in the curved cover plate 20 .

Specifically, before the flexible screen 10 and the curved cover 20 are aligned, the position information of the flexible screen 10 and the curved cover 20 is obtained through a CCD camera, and the alignment is obtained by calculating the position information of the flexible screen 10 and the curved cover 20 . The distance in the direction in which the table 40 needs to move and/or rotate, and then the alignment table 40 is moved to the second direction and/or the third direction by a certain distance, or the alignment table 40 is rotated by a certain angle, thereby driving The clamping assemblies 50 disposed on the alignment table 40 move synchronously, so that the flexible screen 10 clamped on the clamping assemblies 50 and the curved cover plate 20 are positioned. In this embodiment, after the CCD camera obtains the position information of the flexible screen 10 and the curved cover plate 20, it is moved out of the upper cavity 30a and the lower cavity 30b to prevent the CCD camera from occupying the volume of the closed space.

In this embodiment, since the carrier tape 11 is first tensioned in step 140 to flatten the flexible screen 10, the alignment of the flexible screen 10 and the curved cover plate 20 can be more accurate.

Step 160: Close the upper cavity 30a and the lower cavity 30b.

The upper cavity 30a is driven by the first motor 71 to move along the guide rail on the bearing column 82 until the upper cavity 30a and the lower cavity 30b are closed.

Step 170: Evacuate the closed space formed by closing the upper cavity 30a and the lower cavity 30b.

A vacuuming device communicated with the closed space is activated, so that the closed space is evacuated by the vacuuming device. In the present application, the enclosed space is evacuated first, and then the subsequent bonding operation (ie, the bonding process of the flexible screen 10 and the curved cover plate 20 ) is performed, which can avoid the adsorption of dust and impurities in the air during the bonding process. between the flexible screen 10 and the curved cover plate 20 , and at the same time, the generation of air bubbles between the flexible screen 10 and the curved cover plate 20 can also be reduced.

It can be understood that, in some embodiments of the present application, when the laminating device 100 does not have the upper cavity 30a and the lower cavity 30b, that is, the lamination process of the flexible screen 10 and the curved cover plate 20 Step 160 and step 170 can be omitted when it is performed directly in the air and does not need to be performed in a vacuum environment.

Step 180: Move the fitting component 60 or the clamping component 50 along the first direction, so that the fitting component 60 and the carrier tape 11 are close to each other, until the airbag 62 of the fitting component 60 and the The carrier tape 11 contacts.

In this embodiment, the fitting assembly 60 can move in the first direction in the lower cavity 30b. At this time, the fitting assembly 60 is moved in the positive direction of the first direction, so that the airbag 62 of the fitting assembly 60 moves toward the first direction. The carrier tape 11 is approached until it comes into contact with the carrier tape 11 . It can be understood that, in some embodiments, when the fitting assembly 60 is fixed in the lower cavity 30b, that is, when the fitting assembly 60 cannot move, the clamping assembly 50 is moved in the negative direction of the first direction, so that the clamping The holding assembly 50 drives the carrier tape 11 to move toward the airbag 62 of the fitting assembly 60 until the carrier tape 11 contacts the airbag 62 . It can be understood that moving the fitting assembly 60 in this application refers to moving the airbag base 62 and the airbag 61 carried on the airbag base 62 , and moving the clamping assembly 50 refers to moving the clamping Sets of clamps 51 of assembly 50 .

It can be understood that, in some embodiments of the present application, when the air bag 62 is not filled with the filling medium, there is a gap between the inner surface of the air bag 62 and the outer surface of the air bag base 61 . When there is a gap, the airbag 62 needs to be filled with a filling medium before step 180 to make the airbag base 61 in a tensioned state.

Step 190: Continue to move the fitting assembly 60 or the clamping assembly 50 in the first direction, and simultaneously move the two opposite sets of the clamping members 51 to make the opposite two sets of the clamping members 51 close, so that The carrier tape 11 conforms to the outer surface of the airbag 62 .

Please refer to FIG. 16 . Specifically, when the outer surfaces of the carrier tape 11 and the airbag 62 are profiled, the clamping member 51 drives the two ends of the carrier tape 11 to be close to the airbag base 62 . The first side 62c allows the carrier tape 11 to be attached to the airbag 62 at positions corresponding to the top surface 62a and the side 62c of the airbag base 62, and bends the edge of the flexible screen 10 into an arc, so as to ensure that the cover is fixed to the base When the seat and the bonding component move relatively to the pre-bonding position, the distance between the flexible screen 10 and the curved cover plate 20 gradually increases from the middle position to the edge position of the curved cover plate 20 . The distance between any point on the flexible screen 10 and the curved cover plate 20 refers to the length of the line segment between the point on the flexible screen 10 and the curved cover plate 20, and the line segment passes through the point on the flexible screen 10 and is perpendicular to the Point where the slice is.

It can be understood that when the curved cover plate 20 is a four-curved cover plate, the four sets of the clamping members 51 drive the four sides of the carrier tape 11 to approach the first side 62c and the second side of the airbag base 61 , Thereby, the carrier tape 11 is attached to the airbag 62 corresponding to the first side surface 62 c , the second side surface and the top surface 62 a of the airbag base 61 .

When the curved cover plate 20 is a four-curved cover plate, the four corners of the carrier tape 11 are provided with hollow structures, so that the clamping member 51 drives the carrier tape 11 to fit the airbag 62 corresponding to the airbag base 61 When the first side 62c and the second side are formed, wrinkles will not be formed on the four corners of the carrier tape 11, so as to achieve a better fit effect. In addition, the flexible screen 10 carried on the carrier tape 11 also has a hollow structure, so that when the flexible screen 10 is attached to the curved cover plate 20 , the four corners of the flexible screen 10 will not be formed folds. Moreover, in some embodiments, the hollow structure of the flexible screen 10 overlaps the hollow structure of the carrier tape 11. For example, referring to FIG. 7 , the four corners of the carrier tape 11 are provided with notches 111 , the four corners of the flexible screen 10 are provided with notches 101 , and the notches 101 and the notches 111 are overlapped. In this embodiment, the gap 111 is the hollow structure of the carrier tape 11 , and the gap 101 is the hollow structure of the flexible screen 10 .

In the present embodiment, the laminating assembly 60 is moved in the positive direction of the first direction, so that the pressing part of the laminating assembly 60 moves towards the carrier tape 11 close to the cover plate fixing base 31 , and simultaneously moves the two sets of clamping members 51 relatively. Therefore, the carrier tape 11 is attached to the top surface 62 a and the side surface 62 b of the airbag 62 , so that the profiling of the carrier tape 11 and the airbag 62 is realized.

It can be understood that, in other embodiments of the present application, when the fitting assembly 60 is fixed in the lower cavity 30b, that is, when the fitting assembly 60 cannot move, the clamping can be moved in the negative direction of the first direction assembly 50, and at the same time make the clamping members 51 of the clamping assembly 50 approach each other, so that the clamping assembly 50 moves to the side of the first side 61c of the airbag base 61, so that the carrier tape 11 is attached to the top surface 62a of the airbag 62 and On the side surface 62b, the carrier tape 11 and the airbag 62 are copied.

In addition, in the present application, in the process of profiling the carrier tape 11 and the outer surface of the airbag 62, the clamping member 52 moves, so that the carrier tape 11 is always in a tensioned state to avoid the carrier tape 11 and the outer surface of the airbag 62 are contoured to generate wrinkles, thereby avoiding wrinkles when the carrier tape 11 drives the flexible screen 10 and the curved cover plate 20 to fit together.

In some embodiments, while continuing to move the airbag base 61 in the positive direction of the first direction, move the clamping members 51 in the negative direction of the first direction, and move the two opposite clamping members 51 closer to each other. , so that the carrier tape 11 and the outer surface of the airbag 62 are profiling while maintaining the constant tension of the carrier tape 11 .

It can be understood that, in some embodiments, step 140 or step 140 and step 150 may be absent. Alternatively, there is no step 140, and after the step 150 is adjusted to the step 190, that is, after the profiling of the carrier tape 11 and the airbag 62 is completed, the flexible screen 10 and the curved cover plate 20 are aligned. Since the position of the flexible screen 10 will not change after the flexible screen 10 and the airbag 62 are profiled in step 190, the alignment table 40 is adjusted after step 190 to align the flexible screen 10 with the curved cover plate 20. , which can make the alignment more accurate. At this time, the CCD camera is located in the closed space.

Step 200 : Referring to FIG. 17 , move the fitting assembly 60 and the clamping assembly 50 in the first direction at the same time, or move the cover fixing base 31 in the first direction, so as to make the flexible screen 10 It is close to the cover plate fixing base 31 until the distance between the flexible screen 10 and the curved cover plate 20 is within the threshold range. At this time, the flexible screen 10 carried on the carrier tape 11 and the The distance between the curved cover plates 20 gradually increases from the middle position to the edge of the curved cover plates 20 . The threshold range is less than (m-n), where m is the maximum distance that the airbag can inflate, and n is the farthest distance between the curved cover 31 and the flexible screen 10 when the curved cover 31 and the flexible screen 10 start to fit together. the size of. In this embodiment, the threshold range is less than 3 mm, that is, the fitting assembly 60 and the cover plate fixing base 31 are close to each other until the distance between the flexible screen 10 and the curved cover plate 20 is the smallest Stop when it is within 3mm.

In this embodiment, moving the fitting assembly 60 and the clamping assembly 50 at the same time means moving the airbag base 61 and the clamping member 51 of the fitting assembly 60 , so that the carrier tape 11 is always kept in the same shape as the airbag 62 . At the same time, the flexible screen 10 is brought close to the curved cover plate 20 on the cover plate fixing base 30 . It can be understood that, in some embodiments, when the fitting assembly 60 is fixed in the lower cavity 30b and the cover fixing base 30 can move in the first direction, the cover fixing base 30 moves in the negative direction of the first direction. the base 30 so that the curved cover plate 20 is close to the flexible screen 10 .

Step 210 : Fill the air bag 62 with a filling medium until the middle position of the flexible screen 10 to the edge is gradually attached to the curved cover plate 20 .

Please refer to FIG. 18 and FIG. 19. FIG. 18 shows the state where the airbag 62 is filled with the filling medium until the flexible screen 10 starts to contact the curved cover plate 20; state of completion. The airbag 62 is filled with a filling medium through a filling medium channel provided in the airbag base 61 , so that the airbag 62 is gradually expanded. The expansion of the airbag 62 drives the flexible screen 10 carried thereon to gradually adhere to the curved cover plate 20 from the middle position to the edge position.

In some embodiments, the clamping assembly 50 is moved correspondingly with the expansion of the airbag 62 , so that the clamping assembly 50 moves toward the cover plate fixing base 31 , so as to prevent the carrier tape 11 from being broken by a large pulling force.

In some embodiments of the present application, the laminating process of the flexible screen 10 and the curved cover plate 20 further includes:

Step 220 : Move the clamping assembly 50 along the first direction so that the clamping assembly 50 is close to the cover plate fixing base 31 to loosen the carrier tape 11 .

Step 230 : Move the airbag base 61 so that the airbag base 61 is away from the carrier tape 11 .

It can be understood that, before step 230, the filling medium in the airbag 62 may be released, so that the airbag 62 leaves the carrier tape 11 and prepares for the next filling of the filling medium. Alternatively, in some embodiments, the filling medium in the airbag 62 may also be released after step 230 to prepare for the next filling of the filling medium.

Step 240 : Release the clamping of the carrier tape 11 by the clamping assembly 50 .

It can be understood that, in this application, the order of step 230 and step 240 can be changed. In the present application, the carrier tape 11 is loosened first, and then the airbag is deflated 62 , which can prevent the carrier tape 11 from being suddenly released in a taut state and pulling the flexible screen 10 . In addition, by first loosening the carrier tape 11 and then releasing the clamping of the carrier tape 11, the sudden stress change of the airbag 62 on the flexible screen 10 can be avoided, and the flexible screen 10 after the lamination is completed and the curved cover 20 can be protected from being damaged. damaged.

Step 260 : Separate the carrier tape 11 from the flexible screen 10 .

In some embodiments, the curved cover plate 20 and the flexible screen 10 need to be moved to a separation chamber after the lamination is completed, and the carrier tape 11 is separated from the flexible screen 10 in the separation chamber. And, in some embodiments, before step 260, it further includes step 250:

The upper cavity 30a is moved to separate the upper cavity 30a from the lower cavity 30b. The carrier tape 11 is separated from the flexible screen 10 by separating the upper cavity 30a from the lower cavity 30b to release the vacuum environment.

In the present application, the flexible screen 10 and the curved cover plate 20 are attached to each other through the laminating device 100 . By first profiling the carrier tape 11 carrying the flexible screen 10 and the airbag 62, the flexible screen 10 and the curved cover 20 can be moved when the cover fixing base and the lamination assembly are relatively moved to the pre-attached position. The distance gradually increases from the middle position to the edge of the curved cover plate 20, so that the flexible screen 10 and the curved cover plate 20 are gradually fitted from the middle position to the edge position of the curved cover plate 20, which can avoid the flexible screen 10 and the curved cover plate. Generation of bubbles between 20. In addition, during the lamination process, the clamping assembly 50 always tensions the carrier tape 11 to avoid wrinkles when the carrier tape 11 is slack, and to avoid the generation of air bubbles between the flexible screen 10 and the curved cover 20 during lamination.

The above is the preferred embodiment of the application. It should be pointed out that for those skilled in the art, without departing from the principles of the application, several improvements and modifications can be made, and these improvements and modifications may also be regarded as The protection scope of this application.

Claims (36)

1. A laminating device is used for laminating a flexible screen and a curved cover plate and is characterized by comprising a cover plate fixing base, a clamping assembly and a laminating assembly;

the cover plate fixing base is used for fixing the curved cover plate; the clamping assembly is used for clamping a bearing film bearing the flexible screen, and the flexible screen is positioned between the attaching assembly and the cover plate fixing base; the laminating assembly is used for abutting against the flexible screen so as to laminate the flexible screen with the curved cover plate;

the joint assembly comprises an air bag base, an air bag and a communication pipeline, a sealed cavity is formed between the air bag and the air bag base or inside the air bag, and the communication pipeline is communicated with the sealed cavity and used for filling a filling medium into the sealed cavity so as to expand the air bag; the utility model discloses a flexible screen, including apron fixed baseplate, curved surface apron, gasbag, curved surface apron, apron fixed baseplate with when laminating subassembly relative movement to the position of laminating in advance, the gasbag is in the tensioning state, just the surface of gasbag with distance between the curved surface apron is followed the intermediate position of curved surface apron extremely the edge of curved surface apron is crescent, wherein, apron fixed baseplate with when laminating subassembly relative movement to the position of laminating in advance, flexible screen with the curved surface apron begins to contact.

2. The laminating device of claim 1, wherein when the cover fixing base and the laminating assembly are moved relative to each other to the pre-laminating position, the outer surface of the airbag includes a top surface and two first side surfaces connected to the top surface, the top surface is an outwardly convex curved surface with a middle position higher than an edge, at least a portion of the first side surfaces are gathered regions, and the gathered regions of the two opposite first side surfaces are close to each other from the top surface in a direction away from the top surface.

3. The laminating device of claim 2 wherein said side surfaces further comprise opposing second side surfaces, said second side surfaces being positioned between said first side surfaces, at least a portion of said second side surfaces being gathered regions, the gathered regions of the opposing second side surfaces being adjacent to each other in a direction from said top surface away from said top surface.

4. The attaching device according to claim 1, wherein the inner surface of the balloon has the same shape as the outer surface of the balloon base in a natural state, and the inner surface of the balloon is attached to the outer surface of the balloon base.

5. The laminating device of claim 4 wherein the airbag base includes opposing top and bottom surfaces and opposing third side surfaces disposed therebetween, the third side surfaces being at least partially defined by sloped regions, the sloped regions being connected to the top surface, the sloped regions of the opposing third side surfaces being progressively closer together in a direction from the top surface to the bottom surface.

6. The laminating device of claim 5, wherein two fourth opposing side surfaces are further disposed between the top surface and the bottom surface, the fourth side surfaces are disposed between the two third opposing side surfaces, at least a portion of the fourth side surfaces are sloped regions, the sloped regions are connected to the top surface, and the sloped regions of the two fourth opposing side surfaces gradually approach each other in a direction from the top surface to the bottom surface.

7. The laminating device of claim 5 or 6 wherein a transition contour is coupled between the top surface and the third side surface of the airbag base, the transition contour smoothly coupling the top surface and the third side surface.

8. The laminating device of claim 7, the radius of curvature of the transition curve being greater than 3 mm.

9. The laminating device of claim 5 or 6 wherein the wall thickness is the same at each location of the balloon.

10. The laminating device of claim 5 or 6 wherein the bladder has a wall thickness that decreases from a central location corresponding to the top surface to an edge location of the top surface.

11. The laminating device of claim 10 wherein the top surface of the bladder base is planar.

12. The laminating device according to claim 9 or 10, wherein the top surface of the airbag base is an arc-shaped surface, and the arc-shaped surface is an outwardly convex arc surface with a middle position higher than an edge position.

13. The laminating device according to claim 1, wherein the communication channel is a plurality of communication channels, and the plurality of communication channels are provided in the airbag base.

14. The laminating device of claim 13, wherein the outlets of the communication channels are located on the surface of the airbag base, and the outlets of the plurality of communication channels are evenly distributed on the surface of the airbag base covered by the airbag.

15. The laminating device of claim 1 wherein the filling medium is a gas or a liquid.

16. The bonding apparatus according to claim 1, further comprising an alignment stage, wherein the clamping assembly is disposed on the alignment stage, and the alignment stage moves to align the flexible screen with the curved cover plate.

17. The attaching device according to claim 1 or 16, wherein the attaching device includes an upper cavity and a lower cavity that is attached to the upper cavity, the cover plate fixing base is disposed in the upper cavity, the clamping assembly and the attaching assembly are both disposed in the lower cavity, and the upper cavity and the lower cavity form a closed space after being closed.

18. The laminating device of claim 17, wherein a vacuum extractor is coupled to the upper chamber and/or the lower chamber, the vacuum extractor being in communication with the enclosed space for evacuating the enclosed space.

19. The laminating device of claim 17, wherein a window is disposed in the upper cavity and/or the lower cavity, and when the flexible screen is laminated to the curved cover plate, a projection of the curved cover plate on a plane where the window is disposed is located within the window.

20. The laminating device of claim 17, wherein the laminating device comprises a pressure sensor positioned on an outer surface of the upper cavity on a side facing away from the lower cavity for detecting a pressure of the curved cover plate when the flexible screen is laminated to the curved cover plate.

21. A joint assembly is used for jointing a flexible screen and a curved cover plate and is characterized by comprising an air bag base, an air bag and a communication pipeline, wherein a sealed cavity is formed between the air bag and the air bag base or inside the air bag, and the communication pipeline is communicated with the sealed cavity and used for filling a filling medium into the sealed cavity so as to expand the air bag; when the air bag is in a tensioning state, the outer surface of the air bag comprises a top surface and two opposite first side surfaces, the first side surfaces are connected with the top surface, the top surface is an outer convex arc surface with the middle position higher than the edge, at least partial areas of the first side surfaces are furled areas, and the furled areas of the two opposite first side surfaces are close to each other from the top surface to the direction far away from the top surface.

22. The fit assembly of claim 21, wherein the outer surface of the bladder further comprises two opposing second sides, the second sides being positioned between the two first sides, at least a portion of the second sides being gathered regions, the gathered regions of the two opposing second sides being adjacent to each other in a direction from the top surface away from the top surface.

23. The attachment assembly of claim 21 or 22, wherein the bladder has an inner surface that is shaped to conform to the outer surface of the bladder base in a natural state.

24. The fit assembly of claim 23, wherein the airbag base comprises opposing top and bottom surfaces, and opposing third sides disposed between the top and bottom surfaces, the top surface of the airbag base facing the top surface of the airbag, the third side of the airbag base facing the first side of the airbag; at least partial area of the third side surface of the airbag base is an inclined area, the inclined area is connected with the top surface, and the inclined areas of the two opposite third side surfaces are gradually close to each other in the direction from the top surface to the bottom surface.

25. The fit assembly of claim 24, wherein two fourth sides are disposed between the top and bottom sides, the fourth sides being disposed between the two third sides, at least a portion of the fourth sides being an inclined region connected to the top side, the inclined regions of the two fourth sides being gradually closer in a direction from the top side to the bottom side, the fourth side of the airbag base facing the fourth side of the airbag.

26. The conformable assembly of claim 24 or 25, wherein a transition curve is coupled between the top surface of the airbag base and the third side surface, the transition curve smoothly coupling the top surface and the third side surface.

27. The conformable assembly of claims 24 or 25, wherein the top surface of the bladder base is an arcuate surface, the arcuate surface being an outwardly convex arcuate surface with a medial position higher than a lateral position.

28. The conformable assembly of claims 21 or 22, wherein the communication channel is a plurality of channels, the plurality of channels being disposed within the bladder base.

29. The utility model provides a laminating method of curved surface apron and flexible screen which characterized in that includes:

Fixing the curved surface cover plate on the cover plate fixing seat;

enabling a clamping component to fix a carrier tape carrying a flexible screen, and enabling the flexible screen to be located on one side, facing the cover plate fixing seat, of the carrier tape, wherein the clamping component comprises two groups of clamping pieces which are oppositely arranged, the two groups of clamping pieces are respectively clamped at two ends of the carrier tape, and the flexible screen is located between the two groups of clamping pieces;

moving a bonding assembly or the clamping assembly along a first direction to enable the bonding assembly and the carrier band to be close to each other until an air bag of the bonding assembly is in contact with the carrier band;

continuing to move the attaching assembly or the clamping assembly along the first direction, and simultaneously moving the two opposite groups of clamping pieces to enable the two opposite groups of clamping pieces to be close to each other so that the carrier band can be profiled with the outer surface of the air bag;

simultaneously moving the attaching assembly and the clamping assembly along a first direction, or moving the cover plate fixing base along the first direction, so that the flexible screen and the cover plate fixing base are close to each other until the distance between the flexible screen and the curved cover plate is within a threshold range, and at the moment, the distance between the flexible screen carried on the carrier band and the curved cover plate is gradually increased from the middle position of the curved cover plate to the edge;

Filling a filling medium into the air bag until the middle position of the flexible screen is gradually attached to the curved cover plate from the edge.

30. A method of conforming a curved cover sheet to a flexible screen according to claim 29 further comprising, after said continuing to move either said conforming assembly or said clamping assembly in a first direction while moving said opposed sets of said clamping members to bring said opposed sets of said clamping members into proximity so that said carrier strip conforms to the outer surface of said bladder:

and adjusting the position of the alignment table, wherein the alignment table moves to drive the clamping assembly arranged on the alignment table to move so that the flexible screen is aligned with the curved cover plate.

31. A method of conforming a curved cover sheet to a flexible screen according to claim 29 further comprising the step of, prior to said continuing to move either the conforming assembly or the clamping assembly in the first direction while moving the opposed sets of the clamping members to bring the opposed sets of the clamping members into close proximity so that the carrier strip conforms to the outer surface of the bladder:

and adjusting the position of the alignment table, wherein the alignment table moves to drive the clamping assembly arranged on the alignment table to move so that the flexible screen is aligned with the curved cover plate.

32. The method according to claim 31, wherein the adjusting of the position of the alignment stage causes the movement of a clamping member disposed on the alignment stage, so that the flexible screen is aligned with the curved cover plate, and further comprising:

and moving the two groups of clamping pieces and enabling the two groups of clamping pieces to be far away from each other to tension the carrier tape.

33. A method of conforming a curved cover to a flexible screen according to claim 29 wherein the clamping assembly is moved in a first direction towards the cover mounting base whilst the bladder is filled with a filler medium until the flexible screen is progressively conformed from its centre to its edge to the curved cover.

34. The method of conforming a curved cover plate to a flexible screen of claim 29 further comprising:

moving the clamping assembly along a first direction to enable the clamping assembly to be close to the cover plate fixing base so as to loosen the carrier tape;

moving the bladder base so that the bladder base is away from the carrier tape;

releasing the clamping of the carrier band by the clamping component;

and separating the carrier tape from the flexible screen.

35. A method of conforming a curved cover to a flexible screen according to claim 34 further comprising, between or after said moving said bladder seats:

releasing the filling medium in the balloon.

36. The method of claim 29, wherein before the step of filling the bladder with a filling medium until the flexible screen is gradually attached to the curved cover from the center to the edge, the method further comprises:

closing the upper cavity and the lower cavity;

and vacuumizing a closed space formed by closing the upper cavity and the lower cavity.

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