CN117400528A

CN117400528A - Bonding device and method

Info

Publication number: CN117400528A
Application number: CN202311440541.1A
Authority: CN
Inventors: 苏志锋
Original assignee: Interface Optoelectronics Shenzhen Co Ltd; Interface Technology Chengdu Co Ltd; General Interface Solution Ltd
Current assignee: Interface Optoelectronics Shenzhen Co Ltd; Interface Technology Chengdu Co Ltd; General Interface Solution Ltd
Priority date: 2023-10-31
Filing date: 2023-10-31
Publication date: 2024-01-16

Abstract

The application relates to a laminating device and a laminating method, wherein the laminating device comprises a laminating piece, a pressing piece and a pressing piece, wherein the laminating piece is provided with a laminating curved surface which is at least partially arranged in a protruding mode, and the laminating curved surface is used for bearing an optical film along a first direction; a first carrier for carrying the lens in a first direction; the side of the lens, which is away from the first bearing piece, is provided with a mounting curved surface which is bent towards the first bearing piece; and a first heating member for preheating the optical film; the first bearing piece and the pressing piece are configured to be capable of generating relative motion along a first direction so as to enable the optical film to be attached to the installation curved surface; the pressing piece is provided with a pre-attaching position along a first direction; the curvature of the press-fit curved surface is greater than the curvature of the mounting curved surface so that the intermediate region of the optical film contacts the intermediate region of the lens when the press-fit member is in the pre-fit position. According to the technical scheme, the laminating effect between the optical film and the lens can be improved, so that the optical performance of the lens is improved.

Description

Bonding device and method

Technical Field

The present disclosure relates to the field of optical product processing, and in particular, to a bonding device and a bonding method.

Background

After the lens is manufactured, the optical film is required to be attached to the lens, but the attaching effect between the optical film and the lens is poor in the process of attaching the optical film at present, and the optical performance of the lens is affected.

Disclosure of Invention

Based on the above, an attaching device and an attaching method are provided, so that the attaching effect between the optical film and the lens is improved, and the optical performance of the lens is improved.

According to an aspect of the present application, there is provided a bonding device including:

the pressing piece is provided with a pressing curved surface which is at least partially arranged in a protruding mode, and the pressing curved surface is used for bearing the optical film along a first direction;

a first carrier for carrying the lens in a first direction; the side of the lens, which is away from the first bearing piece, is provided with a mounting curved surface which is bent towards the first bearing piece; a kind of electronic device with high-pressure air-conditioning system

A first heating member for preheating the optical film;

the first bearing piece and the pressing piece are configured to be capable of generating relative motion along a first direction so as to enable the optical film to be attached to the installation curved surface;

the pressing piece is provided with a pre-attaching position along a first direction; the curvature of the press-fit curved surface is greater than the curvature of the mounting curved surface so that the intermediate region of the optical film contacts the intermediate region of the lens when the press-fit member is in the pre-fit position.

In some embodiments, the compression curved surface is provided with adsorption holes;

wherein, the lamination curved surface can fix the optical film by means of the adsorption hole; and/or

The press-fit curved surface can release the optical film by means of the adsorption hole.

In some of these embodiments, the compression member includes a first receiving portion and a compression head portion; the first accommodating part is provided with a first opening and a first cavity communicated with the first opening; the pressure head part is connected in the first accommodating part and is provided with a pressing curved surface;

wherein the first receiving portion and the first carrier are configured to be capable of being sealingly connected to each other via the first opening in the first direction, and the first receiving portion is configured to be capable of performing a pressurizing operation on the first cavity.

In some of these embodiments, the ram portion is provided with a first heating element.

In some embodiments, the first carrier has a carrying surface for receiving the lens;

in a relative movement of the first receiving portion and the first carrier in the first direction, the first receiving portion can be arranged on the carrier surface by means of the first opening cover, so that the first carrier and the first receiving portion are connected in a sealing manner.

In some embodiments, the pressing head portion is movably connected to the inner wall of the first accommodating portion along the first direction.

In some embodiments, the first bearing member comprises a second containing part, the second containing part is provided with a bearing surface, and the bearing surface is provided with a first through hole;

the second accommodating part is configured to be capable of performing a vacuum operation and to adsorb and fix the lens on the bearing surface by means of the first through hole.

In some of these embodiments, the conforming device further comprises a detection member; the detection piece is configured to be capable of being positioned on a fitting path of the optical film and the lens and is used for detecting the relative position between the optical film and the lens;

at least one of the first bearing piece and the pressing piece can respond to the detection signal of the detection piece to enable the first bearing piece and the pressing piece to generate relative motion so as to adjust the relative positions of the first bearing piece and the pressing piece and enable the optical film and the lens to be opposite to each other.

In some of these embodiments, the laminating apparatus is provided with a forming station and a laminating station; the first bearing piece is arranged at the attaching station;

the laminating device also comprises a second bearing piece arranged at the forming station; the second bearing piece is used for bearing the optical film to be formed;

wherein the pressing piece is configured to be movable between a molding station and a bonding station;

the pressing piece is used for being matched with the second bearing piece in a relative motion mode along a first direction at a forming station so as to form the optical film to be formed, and the formed optical film is transferred to a bonding station so as to be bonded on the lens of the first bearing piece.

In some embodiments, the laminating apparatus further comprises a second heating member for heating the optical film to be formed on the second carrier.

the first accommodating part and the second bearing part are configured to be capable of being connected with each other in a sealing mode along a first direction through the first opening, and the optical film to be formed is pressed towards one side of the press-fit curved surface through the second bearing part, so that the optical film to be formed is formed.

In some of these embodiments, the second carrier has a fixing surface for carrying the optical film to be molded; the fixing surface is provided with a second through hole;

in the relative movement of the first accommodating part and the second accommodating part along the first direction, the first accommodating part can be covered on the fixing surface by the first opening so as to enable the second accommodating part and the first accommodating part to be connected in a sealing way;

the second bearing piece is configured to be capable of carrying out pressing operation on one side of the optical film to be formed, which faces the press curved surface, through the second through hole.

In some of these embodiments, the second carrier comprises a third receptacle;

wherein the fixing surface is positioned at the third accommodating part; under the condition that the first accommodating part covers the fixing surface, the first accommodating part and the third accommodating part are connected in a sealing mode, and the first accommodating part and the third accommodating part are configured to be capable of performing vacuumizing operation.

According to another aspect of the present application, there is provided a bonding method including:

carrying the lens along a first direction by a first carrying piece;

carrying the formed optical film along a first direction through a pressing curved surface of the pressing piece; the pressing curved surface is at least partially arranged in a protruding way;

preheating an optical film on the pressing piece;

controlling the first bearing piece and the pressing piece to move relatively along a first direction so as to enable the optical film to be attached to the lens; the first bearing piece and the pressing piece are oppositely arranged along a first direction;

the pressing piece is provided with a pre-attaching position along a first direction; the curvature of the press-fit curved surface is larger than that of the mounting curved surface of the lens, and the middle area of the optical film is contacted with the middle area of the lens under the condition that the press-fit piece is in the pre-fit position.

In some embodiments, controlling the relative movement of the first carrier and the press in the first direction to conform the optical film to the lens includes:

after the intermediate region of the optical film contacts the intermediate region of the lens, controlling the press-fit to release the optical film;

the edge region of the optical film is bonded to the edge region of the lens by performing a pressing operation in a first direction toward the optical film.

In some embodiments, before controlling the relative movement of the first carrier and the pressing member along the first direction to make the optical film adhere to the lens, the method further includes:

Detecting whether the optical film and the lens are aligned;

if not, the relative positions of the first bearing piece and the pressing piece are adjusted so that the optical film and the lens are relatively positioned.

In some embodiments, before the molded optical film is carried along the first direction by the lamination curved surface of the lamination member, the method further includes:

carrying the optical film to be molded by a second carrying piece;

controlling the pressing piece and the second bearing piece to move relatively along the first direction so as to mold the optical film to be molded;

and controlling the formed optical film to be fixed on the pressing curved surface of the pressing piece.

In some of these embodiments, controlling the relative movement of the press-fit and the second carrier in the first direction to mold the optical film to be molded includes:

and pressing the optical film along one side of the first direction towards the press curved surface so as to enable the optical film to be attached to the press curved surface.

In some embodiments, before the pressing member and the second carrier member are controlled to move relatively along the first direction to mold the optical film to be molded, the method further includes:

and heating the optical film to be molded on the second bearing piece to soften the optical film.

In the above attaching device and the method, the attaching device at least comprises a first bearing piece, a pressing piece and a first heating piece, wherein the first bearing piece is used for bearing the lens, and one side of the lens, which is away from the first bearing piece, is provided with an installation curved surface which is bent towards the first bearing piece; the pressing piece is provided with a pressing curved surface which is at least partially arranged in a protruding mode. The optical film is preheated by the first heating element to be softened, and the curvature of the pressing curved surface is larger than that of the installation curved surface, so that the middle area of the optical film is contacted with the middle area of the lens under the condition that the pressing element is in a pre-attaching position in the process of relative movement of the first bearing element and the pressing element along the first direction. Therefore, the optical film is favorably attached to the mounting curved surface of the lens gradually from the central area to the edge area, the condition of generating bubbles between the optical film and the lens is reduced, the attaching effect between the optical film and the lens is improved, and the optical performance of the lens is improved.

Drawings

Fig. 1a to 1f are schematic views illustrating a process from molding to adhering an optical film to a lens according to an embodiment of the related art.

Fig. 2 is a schematic structural diagram of a bonding apparatus according to an embodiment of the present application.

FIG. 3 is a schematic view of the relative positions of the optical film and the lens during the fitting process of the fitting device of FIG. 2.

Fig. 4 is a schematic partial cross-sectional view of the compression member of fig. 2.

Fig. 5 is a schematic structural view of the press head part of fig. 2.

Fig. 6 is an exploded view of the press head of fig. 5.

Fig. 7 is a schematic structural view of a bonding apparatus according to another embodiment of the present application.

Fig. 8 is a schematic view illustrating a state of the pressing member and the second carrier member of the laminating device in the optical film forming process.

Fig. 9 is a flow chart of a bonding method according to an embodiment of the present application.

Fig. 10 is a schematic diagram illustrating a specific flow of step S94 in fig. 9.

Fig. 11 is a flow chart of a bonding method according to another embodiment of the present application.

Fig. 12 is a flow chart of a bonding method according to another embodiment of the present application.

Fig. 13 is a schematic flowchart of step S122 in fig. 12.

Fig. 14 is a flow chart of a bonding method according to another embodiment of the present application.

Fig. 15a to 15g are schematic views illustrating a process from molding to adhering an optical film to a lens according to an embodiment of the present application.

Reference numerals illustrate:

an optical film 10;

a lens 20 and a curved mounting surface 20a;

an infrared lamp 30, a profiled platen 40;

a bonding device 100;

the pressing member 110, the pressing curved surface 110a, the adsorption hole Q, the first accommodating portion 111, the first opening 111a, the first cavity 111b, the pressing head portion 112, the pressing plate 1121, the connecting plate 1122, the connecting portion 113;

the first carrier 120, the carrying surface 120a, the second accommodating portion 121, the second cavity 121a, the first through hole M1, and the carrying portion 122;

the first heating element 130, the heat conducting plate 131, the electrothermal film 132, the heat insulating plate 133 and the thermocouple 134;

a detecting member 140;

the second carrier 150, the fixing surface 150a, the second through hole M2, the third accommodating portion 151, and the third cavity 151a;

a second heating member 160;

a first direction F1;

a first region r1, a second region r2, a third region r3, and a fourth region r4;

and a pressurizing operation P.

Detailed Description

In order to make the above objects, features and advantages of the present application more comprehensible, embodiments accompanied with figures are described in detail below. In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present application. This application is, however, susceptible of embodiment in many other forms than those described herein and similar modifications can be made by those skilled in the art without departing from the spirit of the application, and therefore the application is not to be limited to the specific embodiments disclosed below.

In the description of the present application, it should be understood that, if there are terms such as "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc., these terms refer to the orientation or positional relationship based on the drawings, which are merely for convenience of description and simplification of description, and do not indicate or imply that the apparatus or element referred to must have a specific orientation, be configured and operated in a specific orientation, and therefore should not be construed as limiting the present application.

Furthermore, the terms "first," "second," and the like, if any, are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include at least one such feature. In the description of the present application, the terms "plurality" and "a plurality" if any, mean at least two, such as two, three, etc., unless specifically defined otherwise.

In this application, unless explicitly stated and limited otherwise, the terms "mounted," "connected," "secured," and the like are to be construed broadly. For example, the two parts can be fixedly connected, detachably connected or integrated; can be mechanically or electrically connected; either directly or indirectly, through intermediaries, or both, may be in communication with each other or in interaction with each other, unless expressly defined otherwise. The specific meaning of the terms in this application will be understood by those of ordinary skill in the art as the case may be.

In this application, unless expressly stated or limited otherwise, the meaning of a first feature being "on" or "off" a second feature, and the like, is that the first and second features are either in direct contact or in indirect contact through an intervening medium. Moreover, a first feature being "above," "over" and "on" a second feature may be a first feature being directly above or obliquely above the second feature, or simply indicating that the first feature is level higher than the second feature. The first feature being "under", "below" and "beneath" the second feature may be the first feature being directly under or obliquely below the second feature, or simply indicating that the first feature is less level than the second feature.

It will be understood that if an element is referred to as being "fixed" or "disposed" on another element, it can be directly on the other element or intervening elements may also be present. If an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. The terms "vertical," "horizontal," "upper," "lower," "left," "right," and the like as used herein, if any, are for descriptive purposes only and do not represent a unique embodiment.

In the related art, in the process of molding and attaching the optical film 10 which is not molded to the lens 20, as shown in fig. 1a, first, the optical film 10 in a flat state is softened by heating with the infrared lamp 30, then the optical film 10 is molded by the profiling platen 40 under the pressing operation P to obtain the optical film 10 as shown in fig. 1b, and before attaching to the lens 20, as shown in fig. 1c and 1d, the optical film 10 on the profiling platen 40 is heated again with the infrared lamp 30, but the shrinkage phenomenon occurs after the optical film 10 is heated due to the material, so that the optical film is restored to a nearly flat state, therefore, as shown in fig. 1e and 1f, during the pressing operation P, both sides of the optical film 10 are contacted with the lens 20 and are stretched and deformed until attaching to the vertex (center point) of the curved surface of the lens 20, so there is a great stress variation at the vertex (center point) of the optical film 10, and the air bubbles cannot be effectively removed from outside to inside in the attaching manner, so that the optical film 10 and the lens 20 remains at the center position.

Based on this, the embodiment of the application provides a laminating device and a laminating method, so as to improve the laminating effect between the optical film and the lens and improve the optical performance of the lens.

Referring to fig. 2 and 3, fig. 2 is a schematic structural diagram of a bonding apparatus according to an embodiment of the present application. FIG. 3 shows a schematic view of the relative positions of the optical film and the lens of the doubler of FIG. 2 during the doubler process. The laminating device 100 of the present embodiment includes a pressing member 110, a first carrying member 120, and a first heating member 130. The pressing member 110 has a pressing curved surface 110a at least partially protruding, and the pressing curved surface 110a is used for carrying the optical film 10 along the first direction F1. The first carrier 120 is used for carrying the lens 20 along the first direction F1. The side of the lens 20 facing away from the first carrier 120 has a curved mounting surface 20a curved toward the first carrier 120. The first heating member 130 is used to preheat the optical film 10. Wherein the first carrier 120 and the pressing member 110 are configured to generate a relative motion along the first direction F1, so that the optical film 10 is attached to the mounting curved surface 20a; along the first direction F1, the pressing member 110 has a pre-attaching position; the curvature of the press-fit curved surface 110a is greater than the curvature of the mounting curved surface 20a so that the intermediate region (i.e., the first region r 1) of the optical film 10 contacts the intermediate region (i.e., the third region r 3) of the lens 20 when the press-fit 110 is in the pre-fit position.

The first carrier 120 refers to a member for carrying the lens 20. The first carrier 120 is provided with a driving mechanism that can drive the first carrier 120 to move. The first carrier 120 can removably secure the lens 20. The lens 20 has a mounting curve 20a that is configured as a concave surface.

The pressing member 110 is a member for carrying the optical film 10 and attaching it to the lens 20. The pressing element 110 is also provided with a corresponding driving mechanism, and the driving mechanism can drive the pressing element 110 to move relative to the first bearing element 120. The press-fit curved surface 110a refers to a profile curved surface for molding the optical film 10. The press curved surface 110a may be configured as a convex surface, or a partial region of the press curved surface 110a may be configured as a convex surface. The pre-bonding position refers to the relative contact position between the bonding surface 110a of the bonding element 110 and the mounting surface 20a of the lens 20. It should be noted that, the press curved surface 110a and the mounting curved surface 20a may each be configured as a uniform curved surface. The curvature of the press curved surface 110a refers to the degree of curvature at the center point of the press curved surface 110 a. The curvature of the lens 20 refers to the degree of curvature of the mounting curve 20a of the lens 20 at the optical axis. The greater the curvature, the greater the degree of curvature of the corresponding curved surface. The curvature of the press curved surface 110a is greater than the curvature of the mounting curved surface 20a, and since the central region of the optical film 10 on the press member 110 can contact the central region of the lens 20 in the pre-attachment position, the curvature of the curved surface of the side of the optical film 10 facing away from the press curved surface 110a is greater than the curvature of the mounting curved surface 20 a. Further, the central region of the optical film 10 refers to a side curved surface of the optical film 10 facing away from the press-fit curved surface 110a, and a part of the surface around the optical axis thereof. The central region of the lens 20 refers to a portion of the surface of the mounting curve 20a around the optical axis of the lens 20.

The first heating member 130 refers to a member for heating the molded optical film 10. The first heating element 130 may be a direct heating element or an indirect heating element, and may be configured according to practical situations, which is not limited herein.

Specifically, the relative positions of the pressing member 110 and the first carrier 120 are adjusted by driving, so that the pressing member 110 and the first carrier 120 are disposed opposite to each other along the first direction F1. Further, the pressing member 110 may be driven to move toward the first carrier member 120 along the first direction F1, or the first carrier member 120 may be driven to move toward the pressing member 110 along the first direction F1, or both the pressing member 110 and the first carrier member 120 may be driven to move relatively along the first direction F1, so that the distance between the pressing member 110 and the first carrier member is reduced, and thus, the middle region of the optical film 10 on the pressing member 110 contacts the middle region of the lens 20 in the pre-attaching position.

In this embodiment, by providing the pressing member 110 and the first carrier 120 capable of generating the relative motion along the first direction F1, the first carrier 120 is used for carrying the lens 20, the pressing curved surface 110a on the pressing member 110 is used for carrying the optical film 10, and the curvature of the curved surface of the side of the optical film 10 facing away from the pressing curved surface 110a is greater than the curvature of the mounting curved surface 20 a. In this way, during the relative movement of the first carrier 120 and the pressing member 110 along the first direction F1, when the pressing member 110 is at the pre-attaching position, the middle area (i.e. the first area r 1) of the optical film 10 contacts with the middle area (i.e. the third area r 3) of the lens 20, so that the optical film 10 is beneficial to gradually attach from the middle area to the edge area (i.e. the second area r 2) of the lens 20 to the center area to the edge area (i.e. the fourth area r 4) of the lens 20, so as to reduce the occurrence of bubbles between the optical film 10 and the lens 20, improve the attaching effect between the optical film 10 and the lens 20, and improve the optical performance of the lens 20.

Compared with the related art, the profiling platen 40 is only used for molding the optical film 10, the molded optical film 10 is shrunk and deformed in the preheating process, so that a larger tensile stress exists in the optical film 10 in the subsequent lamination process, and bubbles remain between the optical film 10 and the lens 20. In the embodiment of the application, the molded optical film 10 is carried by the press curved surface 110a of the press member 110, so that the optical film 10 is prevented from deforming as much as possible in the preheating process until the optical film 10 is transferred and attached to the lens 20, so that the condition that a large stress is stretched in the middle area of the optical film 10 in the attaching process is reduced, the optical film 10 is gradually attached to the mounting curved surface 20a of the lens 20 from the middle area to the edge area, the occurrence of the condition that air bubbles are generated between the optical film 10 and the lens 20 can be reduced, the attaching effect between the optical film 10 and the lens 20 is improved, and the optical performance of the lens 20 is improved.

Referring to fig. 4, in some embodiments, the compression curved surface 110a is provided with a suction hole Q. Wherein the press-fit curved surface 110a can fix the optical film 10 by means of the adsorption hole Q. And/or, the press-fit curved surface 110a can release the optical film 10 by means of the adsorption hole Q.

Specifically, the pressing curved surface 110a may be provided with one adsorption hole Q or a plurality of adsorption holes Q, and the shape and size of the adsorption holes Q are not limited. Specifically, in some embodiments, a plurality of adsorption holes Q may be disposed at intervals along the circumferential direction of the curved lamination surface 110a, and the optical film 10 may be adsorbed and fixed on the curved lamination surface 110a by performing a vacuum pumping operation on the adsorption holes Q, or the optical film 10 may be released from the lamination member 110 by performing a certain pressurizing operation P on the adsorption holes Q. In this way, before the optical film 10 is not attached to the optical film 10, the optical film 10 may be adsorbed and fixed by the pressing curved surface 110a to maintain the shape until the central area of the optical film 10 contacts the central area of the lens 20, and the optical film 10 is released through the adsorption hole Q, so as to facilitate the efficient attachment between the optical film 10 and the lens 20.

Referring to fig. 5 in combination with fig. 2, in some embodiments, the pressing member 110 includes a first accommodating portion 111 and a pressing portion 112. The first receiving portion 111 has a first opening 111a and a first cavity 111b communicating with the first opening 111a. The press head 112 is connected to the first accommodating portion 111, and the press head 112 has a press curved surface 110a. Wherein the first receiving portion 111 and the first carrier 120 are configured to be capable of being sealingly connected to each other via the first opening 111a in the first direction F1, and the first receiving portion 111 is configured to be capable of performing the pressurizing operation P on the first cavity 111b.

The first accommodation portion 111 is a chamber having an accommodation space. The press head 112 is a member for molding and fixing the optical film 10. The first accommodation portion 111 has a first opening 111a. The press head portion 112 may be movably connected to an inner wall of the first accommodating portion 111 along the first direction F1, and the press curved surface 110a is located on the press head portion 112.

In particular to some embodiments, the press head portion 112 is provided with a corresponding guide mechanism (not shown in the drawings) that drives the press head portion 112 to reciprocate in the first direction F1 from inside the first housing portion 111 to outside the first housing portion 111. Specifically, the pressing member 110 further includes a connecting portion 113, the connecting portion 113 is connected between the pressing head 112 and the guiding mechanism, and the connecting portion 113 is disposed through an inner wall of the first accommodating portion 111 along the first direction F1. Further, the first receiving portion 111 may be provided with a corresponding guide mechanism (not shown in the drawings) that can drive the first receiving portion 111 to reciprocate in the first direction F1.

During the relative movement of the first receiving portion 111 in the first direction F1 towards the first carrier 120, the first receiving portion 111 can cooperate with the first carrier 120 via the first opening 111a to achieve a sealed connection such that the lens 20 is within the sealed first receiving portion 111. Further, the evacuation operation can be performed in the sealed first accommodation portion 111, so that the efficiency of the subsequent pressurizing operation P can be improved. Then, the preheating operation is started on the optical film 10 on the press curved surface 110a by using the first heating element 130, and then the driving pressing head 112 moves towards the lens 20 along the first direction F1 and moves to the pre-attaching position, so that the molding state of the optical film 10 can be maintained as much as possible during the period, and the middle area of the optical film 10 can be contacted with the middle area of the lens 20. Further, the pressing head portion 112 is operated to release the optical film 10 from the pressing curved surface 110a, and then the pressing operation P is performed on the first receiving portion 111 to cause the optical film 10 to be gradually attached to the lens 20 from the middle region to the edge region, so that the occurrence of air bubbles between the optical film 10 and the lens 20 can be reduced, and the occurrence of stress stretching of the optical film 10 during attachment can be reduced, thereby improving the attaching effect between the optical film 10 and the lens 20.

With continued reference to fig. 4, and in conjunction with fig. 6, in some embodiments, the nip portion 112 is provided with a first heating element 130. In particular to some embodiments, the press head 112 includes a press plate 1121 and a connection plate 1122 that are spaced apart along the first direction F1, with a space between the press plate 1121 and the connection plate 1122. The pressing plate 1121 is provided with a pressing curved surface 110a, and the connecting plate 1122 is used for connecting the connecting portion 113. The first heating element 130 at least includes a heat conducting plate 131 and an electrothermal film 132 sequentially connected along a first direction F1, and the heat conducting plate 131 and the electrothermal film 132 are located in the space, the heat conducting plate 131 is connected to the pressing plate 1121, and the electrothermal film 132 is connected to the connecting plate 1122. Further, the first heating element 130 may further include a heat insulation plate 133, where the heat insulation plate 133 is disposed between the electrothermal film 132 and the connection plate 1122. Further, the first heating member 130 may further include a thermocouple 134, and the thermocouple 134 is connected to the electrothermal film 132 and is used for measuring a heating temperature of the electrothermal film 132.

In this way, during the relative movement of the pressing member 110 and the first carrier 120 along the first direction F1, the heating operation of the electrothermal film 132 disposed on the pressing portion 112 on the optical film 10 can be directly performed, so that the optical film 10 is kept in a molded state until the optical film 10 contacts the lens 20, thereby reducing the cooling deformation of the optical film 10, and further facilitating the bonding of the optical film 10 to the lens 20.

TABLE 1

Referring to table 1, table 1 shows temperature uniformity test data of heating the platen 1121 by the first heating member 130 on the platen portion. By performing multiple tests on 4 positions of the platen 1121, the calculated average temperature errors were all less than 1%. While the infrared lamp 30 is used in the related art to heat-soften the molded optical film 10, the average temperature error thereof may be more than 5%. Therefore, in the embodiment of the present application, the first heating element 130 is directly disposed on the pressing head 112, so that the optical film 10 on the pressing head 112 is uniformly heated, and uniformity of softening degree is improved, thereby being beneficial to enabling the optical film 10 to be fully attached to the lens 20.

With continued reference to fig. 2, in some embodiments, the first carrier 120 has a carrying surface 120a, the carrying surface 120a being configured to receive the lens 20. In a relative movement of the first receiving portion 111 and the first carrier 120 in the first direction F1, the first receiving portion 111 can be arranged to cover the carrier surface 120a via the first opening 111a, so that the first carrier 120 and the first receiving portion 111 are connected in a sealing manner.

Specifically, the bearing surface 120a is a flat surface for bearing the lens 20. The lens 20 may be directly carried by the carrying surface 120a. Alternatively, the lens 20 is indirectly supported on the supporting surface 120a by providing a supporting portion 122, as shown in fig. 2. The size of the bearing surface 120a matches the size of the first opening 111a of the first accommodating portion 111, so that the first accommodating portion 111 can be covered on the bearing surface 120a by means of the first opening 111a, and in addition, a sealing ring can be arranged between the first bearing member 120 and the first accommodating portion 111, so as to improve the sealing effect. In this way, the subsequent pressing operation P of the optical film 10 against the lens 20 is facilitated.

In some embodiments, the first carrier 120 includes a second accommodating portion 121, the second accommodating portion 121 has a carrying surface 120a, and the carrying surface 120a is provided with a first through hole M1. The second accommodating portion 121 is configured to be capable of performing a vacuum operation and to adsorb and fix the lens 20 on the carrying surface 120a via the first through hole M1.

Specifically, the second receiving portion 121 has a second cavity 121a, and the first through hole M1 communicates with the second cavity 121 a. The first through hole M1 may be directly opened on the bearing surface 120a, or may be connected to the first through hole M1 through the bearing portion 122 penetrating through the bearing surface 120 a. The lens 20 can cover the opening of the first through hole M1. By performing the vacuuming operation on the second receiving part 121, the lens 20 can be suction-fixed by means of the first through hole M1. So, the follow-up optical film 10 of being convenient for laminate in lens 20, lens 20 is difficult for removing, improves the laminating precision, can realize simultaneously that lens 20 can dismantle fixedly, improves the convenience of operation.

With continued reference to fig. 2, in some embodiments, the conforming device 100 further includes a detection member 140. The detecting member 140 is configured to be able to be positioned on the attaching path of the optical film 10 and the lens 20 for detecting the relative position between the optical film 10 and the lens 20. At least one of the first carrier 120 and the pressing member 110 is capable of generating a relative motion between the first carrier 120 and the pressing member 110 in response to the detection signal of the detecting member 140, so as to adjust the relative positions of the first carrier 120 and the pressing member 110 to align the optical film 10 and the lens 20 relatively.

Specifically, the detecting member 140 is a member for detecting the relative positions of the optical film 10 and the lens 20. The detecting member 140 may use a separate camera, a laser sensor or other position detecting sensor, or may use a visual positioning platform (UVW platform), which is not limited herein. The detecting member 140 is configured with a driving mechanism (not shown) that is movable relative to the pressing member 110 and the first carrier member 120. After the pressing member 110 and the first carrier member 120 are disposed in a state of being substantially opposite to each other along the first direction F1, the detecting member 140 is used to detect the relative position between the optical film 10 and the lens 20, and if it is detected that the optical axis of the optical film 10 and the optical axis of the lens 20 are not aligned along the first direction F1, the position of the first carrier member 120 can be adjusted, or the position of the pressing member 110 can be adjusted, or the positions of the first carrier member 120 and the pressing member 110 can be adjusted at the same time, so that the optical film 10 on the pressing member 110 is aligned with the lens 20 relatively.

In some embodiments, the plurality of adsorption holes Q are circumferentially spaced apart on the pressing curved surface 110a, and the detecting element 140 can detect the center point of the pressing curved surface 110a through the plurality of adsorption holes Q. Specifically, the detecting element 140 is configured as a camera, and by photographing the press curved surface 110a, a center point of the press curved surface 110a is fitted using the plurality of adsorption holes Q as feature points. Since the press-fit curved surface 110a is a profile-shaped curved surface of the optical film 10, the optical axis of the optical film 10 passes through the center point of the press-fit surface. Further, the detecting element 140 is used to detect the center point of the installation curved surface 20a of the lens 20, and calculate whether the center point of the press curved surface 110a and the center point of the installation curved surface 20a are aligned in the first direction F1. Thus, whether the optical film 10 and the lens 20 are aligned or not can be detected, thereby being beneficial to improving the attaching precision between the optical film 10 and the lens 20.

Referring to fig. 7 and 8, in some embodiments, the laminating apparatus 100 is provided with a forming station and a laminating station. The first carrier 120 is disposed at the bonding station. The laminating apparatus 100 further comprises a second carrier 150 disposed at the forming station. The second carrier 150 is used for carrying the optical film 10 to be molded. Wherein the compression member 110 is configured to be movable between a molding station and a bonding station. The pressing member 110 is used for being matched with the second carrier 150 in a relative motion along the first direction F1 at a forming station to form the optical film 10 to be formed, and transferring the formed optical film 10 to an attaching station to attach to the lens 20 of the first carrier 120.

The molding station refers to a station for molding the optical film 10 to be molded. The bonding station refers to a station for bonding the molded optical film 10 to the lens 20. The second carrier 150 refers to a member that carries the optical film 10 to be molded. The pressing member 110 is provided with a corresponding driving mechanism, and the pressing member 110 can reciprocate between the bonding station and the forming station under the action of the driving mechanism so as to repeat the forming operation and the bonding operation.

Specifically, in the forming station, the pressing member 110 can move along the first direction F1 relative to the second carrier 150 and approach the optical film 10 to be formed on the second carrier 150, and by matching between the pressing member 110 and the second carrier 150, the optical film 10 to be formed on the second carrier 150 can be pressed and formed to obtain the required optical film 10. Then, the pressing member 110 is driven to transfer the optical film 10 to the attaching station, and the relative position between the pressing member 110 and the first carrier 120 is adjusted to facilitate the attachment of the subsequently formed optical film 10 to the lens 20. In this way, the pressing member 110 assists in forming the optical film 10, and then the pressing member 110 is used to transfer and attach the formed optical film 10 to the lens 20, so that the optical film 10 can be kept in a formed state as much as possible and is not easy to deform during the transfer to attach process.

In some embodiments, the bonding apparatus 100 further includes a second heating element 160, where the second heating element 160 is configured to heat the optical film 10 on the second carrier 150.

Specifically, the second heating member 160 refers to a member for heating the optical film 10 to be molded. The second heating member 160 may employ an infrared lamp. In particular, in some embodiments, the bottom wall of the first cavity 111b may be made of sapphire glass or quartz glass, and the second heating member 160, that is, an infrared lamp, may be disposed outside the bottom wall, and the infrared lamp may transmit the bottom wall of the first cavity 111b to heat the optical film 10. In this way, the optical film 10 to be formed is heated by the second heating element 160 to soften the optical film, which is more beneficial for the optical film 10 to be attached to the press curved surface 110a to realize forming.

With continued reference to fig. 7, in some embodiments, the compression member 110 includes a first receiving portion 111 and a ram portion 112; the first receiving portion 111 has a first opening 111a and a first cavity 111b communicating with the first opening 111 a. The press head 112 is connected to the first accommodating portion 111, and the press head 112 has a press curved surface 110a. Wherein the first receiving portion 111 and the second carrier 150 are configured to be capable of being connected to each other in a sealing manner along the first direction F1 by means of the first opening 111a, and the optical film 10 to be molded is molded by performing a pressing operation P on a side of the optical film 10 to be molded toward the press curved surface 110a by means of the second carrier 150.

It should be noted that, when at the molding station, the first receiving portion 111 of the pressing member 110 is used to cooperate with the second carrier 150 to mold the optical film 10 to be molded. When in the attaching position, the first accommodating portion 111 of the pressing member 110 is used to cooperate with the first carrier 120 to press the molded optical film 10 against the lens 20. The press head portion 112 may be movably connected to an inner wall of the first accommodating portion 111 along the first direction F1, and the press curved surface 110a is located on the press head portion 112.

In particular to some embodiments, the first receiving portion 111 may be configured with a corresponding guide mechanism that may drive the first receiving portion 111 to reciprocate in the first direction F1. The press head portion 112 may be provided to penetrate the first receiving portion 111, and may be provided with a corresponding guide mechanism that may drive the press head portion 112 to reciprocate in the first direction F1 from inside the first receiving portion 111 to outside the first receiving portion 111.

In the process of driving the first accommodating part 111 to relatively move towards the second carrier 150 along the first direction F1 at the attaching station, the first accommodating part 111 can be matched with the second carrier 150 by means of the first opening 111a to realize sealing connection, so that the optical film 10 to be formed is positioned in the sealed first accommodating part 111, and the pressing head part 112 of the pressing member 110 is driven to move along the first direction F1, so that the pressing curved surface 110a contacts the optical film 10 to be formed. Further, the optical film 10 to be formed may be softened by turning on a heating operation using the second heating member 160. Then, the second carrier 150 is used to perform the pressing operation P on the side of the optical film 10 to be formed facing the press curved surface 110a, so that the softened optical film 10 can be attached to the press curved surface 110a, thereby completing the forming operation. Further, the vacuum pumping operation is performed on the suction holes Q on the curved lamination surface 110a, so that the curved lamination surface 110a suctions and fixes the formed optical film 10, thereby facilitating the transfer of the formed optical film 10 to the bonding station.

With continued reference to fig. 7, in some embodiments, the second carrier 150 has a fixing surface 150a, and the fixing surface 150a is used to carry the optical film 10 to be molded. The fixing surface 150a has a second through hole M2. In a relative movement of the first receiving portion 111 and the second receiving portion 150 in the first direction F1, the first receiving portion 111 can be provided with a first opening 111a over the fixing surface 150a, so that the second receiving portion 150 and the first receiving portion 111 are connected in a sealing manner. The second carrier 150 is configured to be able to perform the pressing operation P toward the side of the press-fit curved surface 110a of the optical film 10 to be molded by means of the second through hole M2.

Specifically, the fixing surface 150a refers to a surface for carrying the optical film 10 to be molded. The size of the fixing surface 150a matches with the size of the first opening 111a of the first accommodating portion 111, so that the first accommodating portion 111 can be covered on the fixing surface 150a through the first opening 111a, and in addition, a sealing ring can be arranged between the fixing surface 150a and the first accommodating portion 111, so as to improve the sealing effect. The second through hole M2 may be connected to an inflation tube. In this way, the second through hole M2 is inflated to realize the pressing operation P of the optical film 10, thereby enabling the optical film 10 to be molded on the press-fit curved surface 110a.

In some embodiments, the second carrier 150 includes a third receptacle 151. Wherein the fixing surface 150a is located on the third receiving portion 151. When the first housing portion 111 is covered on the fixing surface 150a, the first housing portion 111 and the third housing portion 151 are hermetically connected, and the first housing portion 111 and the third housing portion 151 are each configured to be capable of performing a vacuum operation.

Specifically, the third accommodating portion 151 refers to a space in which the evacuation operation and the pressurization operation P can be performed. The fixing surface 150a is a surface of the third receiving portion 151 disposed along the first direction F1. In particular to some embodiments, the third receiving part has a third cavity 151a, and the second through hole M2 communicates with the third cavity 151 a. Further, a vacuum chuck may be provided on the fixing surface 150a, and the optical film 10 to be molded is sucked and fixed by the vacuum chuck, so that displacement of the optical film 10 during the vacuuming operation is reduced. In the case where the first accommodating portion 111 and the third accommodating portion 151 are hermetically connected, the vacuum pumping operation is performed in the first accommodating portion 111 and in the third accommodating portion 151, so that the air pressure states of the two chambers are balanced, and thus, the subsequent pressurizing operation P for the third accommodating portion 151 is facilitated, so that the optical film 10 to be molded is attached to the press-fit curved surface 110a, and the molding efficiency of the optical film 10 can be improved.

It will be appreciated that the first receiving portion 111, the second receiving portion 121, and the third receiving portion 151 are each provided with a corresponding vent and/or inflation port (not shown), and the pump and/or pressurizing device is configured to perform the corresponding evacuation operation and/or pressurizing operation P, respectively.

Based on the same inventive concept, the embodiment of the application also provides a bonding method. Referring to fig. 9 in combination with fig. 2, the method includes:

s91, the lens 20 is carried along the first direction F1 by the first carrier 120.

S92, carrying the formed optical film 10 along a first direction F1 through a press curved surface 110a of the press member 110; the press-fit curved surface 110a is configured to be at least convexly disposed.

S93, preheating the optical film 10 on the pressing piece 110.

S94, controlling the first bearing member 120 and the pressing member 110 to move relatively along the first direction F1 so as to enable the optical film 10 to be attached to the lens 20; the first carrier 120 and the pressing member 110 are disposed opposite to each other along the first direction F1.

The pressing member 110 has a pre-attaching position along the first direction F1. The curvature of the press-fit curved surface 110a is greater than the curvature of the mounting curved surface 20a of the lens 20, and the intermediate region of the optical film 10 is in contact with the intermediate region of the lens 20 with the press-fit 110 in the pre-fit position.

Note that, the pre-attaching position refers to a relative contact position between the pressing curved surface 110a of the pressing member 110 and the mounting curved surface 20a of the lens 20. The intermediate region of the optical film 10 may be a portion of the surface around the optical axis of the optical film 10. The intermediate region of the lens 20 may be a portion of the surface surrounding the optical axis of the lens 20. Can be set according to practical situations, and is not limited herein.

Specifically, the first carrier 120 is located at the attaching station, the lens 20 is mounted on the carrying surface 120a of the first carrier 120, and the carrying surface 120a can fix the lens 20 by vacuum adsorption. The curved surface 110a of the pressing member 110 may also fix the formed optical film 10 by vacuum adsorption. The pressing member 110 and the first carrier 120 are disposed opposite to each other along the first direction F1. Further, the pressing member 110 and the first carrier 120 are controlled to move relatively along the first direction F1, so that the first accommodating portion 111 of the pressing member 110 is in sealing connection with the first carrier 120, and the pressing head portion 112 of the pressing member 110 is located in the first accommodating portion 111. During the relative movement of the pressing member 110 and the first carrier member 120 in the first direction F1, the optical film 10 on the pressing curved surface 110a may be heated by the first heating member 130 until the middle area of the optical film 10 contacts the middle area of the lens 20, and then the heating may be stopped. In this way, the optical film 10 is advantageously laminated to the lens 20 gradually from the middle area to the edge area, the occurrence of bubbles between the optical film 10 and the lens 20 is reduced, and the heating of the optical film 10 is maintained by the first heating member 130 until the optical film 10 and the lens 20 are in contact, so that the occurrence of cooling deformation of the optical film 10 can be reduced, the lamination effect between the optical film 10 and the lens 20 is improved, and the optical performance of the lens 20 is improved.

Referring to fig. 10, in some embodiments, controlling the relative movement of the first carrier 120 and the pressing member 110 along the first direction F1 in step S94 to attach the optical film 10 to the lens 20 includes:

s101, after the middle area of the optical film 10 contacts the middle area of the lens 20, the pressing member 110 is controlled to release the optical film 10.

S102, pressing operation P is performed toward the optical film 10 in the first direction F1, so that the edge region of the optical film 10 is bonded to the edge region of the lens 20.

Specifically, after the middle area of the optical film 10 contacts the middle area of the lens 20, the vacuum is released to the suction hole Q to separate the optical film 10 from the press curved surface 110a, and then the pressing operation P is performed on the sealed first receiving part 111, so that the optical film 10 is more easily attached to the mounting curved surface 20a of the lens 20 from the middle area to the edge area, thereby improving attaching efficiency.

Referring to fig. 11, in some embodiments, before the control pressing member 110 and the second carrier member 150 in step S94 relatively move along the first direction F1 to mold the optical film 10 to be molded, the method further includes:

s111, detecting whether the optical film 10 and the lens 20 are aligned, and if not, adjusting the relative positions of the first carrier 120 and the pressing member 110 to align the optical film 10 and the lens 20.

Specifically, whether the optical film 10 and the lens 20 are aligned along the first direction F1 may be detected by the detecting element 140, and in some embodiments, the detecting element 140 is configured as a camera, and by photographing the press curved surface 110a, the center point of the press curved surface 110a is fitted by using the plurality of adsorption holes Q on the press curved surface 110a as feature points. Since the press-fit curved surface 110a is a profile-shaped curved surface of the optical film 10, the optical axis of the optical film 10 passes through the center point of the press-fit surface. Further, the detecting element 140 is used to detect the center point of the installation curved surface 20a of the lens 20, calculate whether the center points of the press curved surface 110a and the installation curved surface 20a are aligned in the first direction F1, and if not, the first carrier 120 is moved to correct the optical film 10 and the lens 20, or the press curved surface 110 is moved to correct the optical film 10 and the lens 20. Thus, whether the optical film 10 is aligned with the lens 20 can be detected, which is beneficial to improving the attaching precision between the optical film 10 and the lens 20.

It can be appreciated that after the optical film 10 and the lens 20 are aligned, the first carrier 120 and the pressing member 110 can be controlled to move relatively along the first direction F1, so that the first accommodating portion 111 and the first carrier 120 are connected in a sealing manner, and thus, the operation procedure can be optimized, and the subsequent pressing operation P of the optical film 10 can be facilitated to form the optical film.

Referring to fig. 12, in some embodiments, before the step S92 of carrying the molded optical film 10 along the first direction F1 by the pressing curved surface 110a of the pressing member 110, the method further includes:

s121, the optical film 10 to be molded is carried by the second carrier 150.

S122, controlling the pressing member 110 and the second carrier member 150 to relatively move along the first direction F1, so as to mold the optical film 10 to be molded.

S123, controlling the molded optical film 10 to be fixed on the pressing curved surface 110a of the pressing member 110.

It should be noted that the second carrier 150 is located at the forming station. The compression member 110 may be reciprocally movable between a molding station and a bonding station to assist in completing the molding and bonding operations of the optical film 10. The optical film 10 to be formed is a planar film.

Specifically, the optical film 10 to be molded is placed on the second carrier 150. The pressing member 110 is moved to one side of the second carrier 150 along the first direction F1, and the curved pressing surface 110a and the optical film 10 to be formed are disposed opposite to each other. The pressing member 110 and the second carrier member 150 are controlled to move relatively along the first direction F1 to connect the first accommodating portion 111 and the second carrier member 150 in a sealing manner, the optical film 10 to be formed and the pressing portion 112 are both located in the sealed first accommodating portion 111, and the pressing curved surface 110a of the pressing portion 112 is in contact with or is close to the optical film 10 to be formed. Further, the optical film 10 to be molded is pressed onto the press curved surface 110a by performing the pressing operation P on the optical film 10 along the first direction F1 toward one side of the press curved surface 110a by the second carrier 150, thereby realizing the molding of the optical film 10. Further, the molded optical film 10 may be fixed on the press-fit curved surface 110a by vacuum adsorption. In this way, the pressing member 110 assists in forming the optical film 10, and then the formed optical film 10 is transferred to the bonding station by using the pressing member 110, so that the formed state of the optical film 10 can be maintained as much as possible, and deformation is not easy to occur.

Referring to fig. 13, in some embodiments, the controlling the pressing member 110 and the second carrier member 150 to relatively move along the first direction F1 in step S122 to mold the optical film 10 to be molded includes:

s131, pressing the optical film 10 along the first direction F1 toward the side of the pressing curved surface 110a, so that the optical film 10 is attached to the pressing curved surface 110a.

Specifically, the second carrier 150 has a carrying surface 120a, and the optical film 10 to be formed is located on the carrying surface 120a. The pressing operation P is performed on the optical film 10 to be formed by the second through hole M2 of the bearing surface 120a, so that the optical film 10 is deformed toward the pressing curved surface 110a of the pressing member 110. Thus, the optical film 10 can be uniformly pressed against the contact or adjacent press curved surface 110a, and the molding effect of the optical film 10 can be improved.

Referring to fig. 14, in some embodiments, before the control pressing member 110 and the second carrier member 150 in the step S122 relatively move along the first direction F1 to mold the optical film 10 to be molded, the method further includes:

s141, heating the optical film 10 to be molded on the second carrier 150 to soften the optical film 10.

Specifically, the optical film 10 to be molded on the second carrier member 150 may be softened by heating the optical film by the second heating member 160 before the optical film 10 is press molded. In this way, the optical film 10 to be molded is favorably laminated onto the lamination curved surface 110a.

Fig. 15a to 15g are schematic views showing a process state of an optical film in an embodiment of the present application from molding to fitting to a lens.

Referring to fig. 15a, first, the optical film 10 to be formed is heated and softened by the second heating member 160. The optical film 10 is then molded and cured by the pressing member 110 under the pressing operation P, resulting in the optical film 10 shown in fig. 15 b. Before the optical film 10 is attached to the lens 20, as shown in fig. 15c, the detecting member 140 is used to detect the pressing member 110, so that the optical film 10 on the pressing member 110 and the lens 20 on the first carrier 120 are aligned with each other. Next, in the process shown in fig. 15d, the optical film 10 is heated by using the first heating member 130 (not shown in fig. 15 d) located on the pressing part 112, and at the same time, the pressing member 110 and the first carrier member 120 are controlled to move relatively in the first direction F1 so that the middle region of the optical film 10 contacts with the middle region of the lens 20, as shown in fig. 15 e. Further, as shown in fig. 15F and 15g, the pressing member 110 is separated from the optical film 10, and the pressing operation P is performed toward the optical film 10 along the first direction F1, so that the optical film 10 is gradually attached to the lens 20 from the middle area to the edge area.

Compared with the process state shown in fig. 1a to 1f in the related art, the profiling platen 40 is only used for molding the optical film 10, the molded optical film 10 is shrunk and deformed during the preheating process, so that a larger tensile stress exists in the optical film 10 during the subsequent lamination process, and bubbles remain between the optical film 10 and the lens 20. In the embodiment of the application, the molded optical film 10 is carried by the press curved surface 110a of the press member 110, and the heating operation of the optical film 10 is directly maintained by the first heating member 130 arranged on the press member 110, in the heating process, the optical film 10 is prevented from being deformed as much as possible until the optical film 10 is transferred and attached to the lens 20, so that the condition that a large stress stretch exists in the middle area of the optical film 10 in the attaching process is reduced, and the optical film 10 can be gradually attached to the mounting curved surface 20a of the lens 20 from the center area to the edge area, so that the condition that bubbles are generated between the optical film 10 and the lens 20 is reduced, the attaching effect between the optical film 10 and the lens 20 is improved, and the optical performance of the lens 20 is improved.

The technical features of the above-described embodiments may be arbitrarily combined, and all possible combinations of the technical features in the above-described embodiments are not described for brevity of description, however, as long as there is no contradiction between the combinations of the technical features, they should be considered as the scope of the description.

The above examples only represent a few embodiments of the present application, which are described in more detail and are not to be construed as limiting the scope of the claims. It should be noted that it would be apparent to those skilled in the art that various modifications and improvements could be made without departing from the spirit of the present application, which would be within the scope of the present application. Accordingly, the scope of protection of the present application is to be determined by the claims appended hereto.

Claims

1. A bonding apparatus, comprising:

a first carrier for carrying the lens in a first direction; one side of the lens, which is away from the first bearing piece, is provided with a mounting curved surface which is bent towards the first bearing piece; a kind of electronic device with high-pressure air-conditioning system

A first heating member for preheating the optical film;

the first bearing piece and the pressing piece are configured to be capable of generating relative motion along the first direction so as to enable the optical film to be attached to the mounting curved surface;

the pressing piece is provided with a pre-attaching position along the first direction; the curvature of the press-fit curved surface is greater than the curvature of the mounting curved surface so that the intermediate region of the optical film contacts the intermediate region of the lens when the press-fit member is in the pre-fit position.

2. The bonding device according to claim 1, wherein the bonding curved surface is provided with an adsorption hole;

wherein the press-fit curved surface can fix the optical film by means of the adsorption hole; and/or

3. The fitting device of claim 1, wherein the compression fitting includes a first receptacle and a compression head; the first accommodating part is provided with a first opening and a first cavity communicated with the first opening; the pressure head part is connected in the first accommodating part and is provided with the pressing curved surface;

4. A bonding apparatus according to claim 3, wherein the ram portion is provided with the first heating member.

5. The fitting device of claim 4, wherein the first carrier has a bearing surface for receiving the lens;

In the relative movement of the first receiving portion and the first carrier in the first direction, the first receiving portion can be arranged on the carrying surface by means of the first opening cover, so that the first carrier and the first receiving portion are in sealing connection.

6. The fitting device of claim 4, wherein the ram portion is movably coupled to an inner wall of the first receptacle portion in a first direction.

7. The fitting device of claim 4, wherein the first carrier includes a second receptacle having a bearing surface with a first through hole;

8. The bonding device according to any one of claims 1-7, further comprising a detection member; the detection piece is configured to be capable of being positioned on a fitting path of the optical film and the lens and used for detecting the relative position between the optical film and the lens;

at least one of the first bearing piece and the pressing piece can respond to the detection signal of the detection piece to enable the first bearing piece and the pressing piece to generate relative motion so as to adjust the relative positions of the first bearing piece and the pressing piece and enable the optical film and the lens to be relatively aligned.

9. A bonding apparatus according to any one of claims 1 to 7, wherein the bonding apparatus is provided with a forming station and a bonding station; the first bearing piece is arranged at the attaching station;

the laminating device further comprises a second bearing piece arranged at the forming station; the second bearing piece is used for bearing an optical film to be formed;

wherein the press-fit piece is configured to be movable between the forming station and the laminating station;

the pressing piece is used for being matched with the second bearing piece in a relative motion mode along the first direction at the forming station so as to form the optical film to be formed, and the formed optical film is transferred to the attaching station so as to be attached to the lens of the first bearing piece.

10. The bonding apparatus of claim 9, further comprising a second heating element for heating the optical film to be formed on the second carrier.

11. The fitting device of claim 9, wherein the compression fitting includes a first receptacle and a compression head; the first accommodating part is provided with a first opening and a first cavity communicated with the first opening; the pressure head part is connected in the first accommodating part and is provided with the pressing curved surface;

The first accommodating part and the second bearing part are configured to be capable of being in sealing connection with each other along the first direction through the first opening, and the second bearing part is used for carrying out pressing operation on one side of the optical film to be formed, which faces the press curved surface, so that the optical film to be formed is formed.

12. The bonding device according to claim 11, wherein the second carrier has a fixing surface for carrying the optical film to be molded; the fixing surface is provided with a second through hole;

in the relative movement of the first accommodating part and the second bearing part along the first direction, the first accommodating part can be covered on the fixing surface by the first opening so as to enable the second bearing part and the first accommodating part to be connected in a sealing way;

13. The fitting device of claim 12, wherein the second carrier includes a third receptacle;

wherein the fixing surface is positioned at the third accommodating part; the first accommodating portion and the third accommodating portion are in sealing connection under the condition that the first accommodating portion is covered on the fixing surface, and the first accommodating portion and the third accommodating portion are configured to be capable of performing vacuumizing operation.

14. A bonding method comprising:

carrying the lens along a first direction by a first carrying piece;

carrying the formed optical film along the first direction through a pressing curved surface of the pressing piece; the pressing curved surface is at least partially arranged in a protruding mode;

preheating the optical film on the pressing piece;

the pressing piece is provided with a pre-attaching position along the first direction; the curvature of the press-fit curved surface is larger than that of the mounting curved surface of the lens, and the middle area of the optical film is in contact with the middle area of the lens when the press-fit piece is in the pre-fitting position.

15. The fitting method of claim 14, wherein controlling the relative movement of the first carrier and the press-fit in a first direction to fit the optical film to the lens comprises:

controlling the press-fit to release the optical film after the middle area of the optical film contacts the middle area of the lens;

And pressing the optical film along a first direction to enable the edge area of the optical film to be attached to the edge area of the lens.

16. The method of claim 14, wherein controlling the relative movement of the first carrier and the press-fit member in a first direction to apply the optical film to the lens is further comprised of:

detecting whether the optical film and the lens are aligned;

if not, the relative positions of the first bearing piece and the pressing piece are adjusted so that the optical film and the lens are relatively aligned.

17. A method of bonding according to any one of claims 14 to 16, wherein before the molded optical film is carried in the first direction by the bonding curved surface of the bonding member, further comprising:

carrying the optical film to be molded by a second carrying piece;

18. The method of claim 17, wherein controlling the relative movement of the press-fit and the second carrier in the first direction to mold the optical film to be molded comprises:

19. The method of claim 17, wherein controlling the relative movement of the pressing member and the second carrier member in the first direction to mold the optical film to be molded further comprises: