阅读说明：本技术 一种贴合装置及贴合方法 (Laminating device and laminating method ) 是由 吴兆明 黄修雄 王鹏 于 2019-09-29 设计创作，主要内容包括：本发明提供一种贴合装置及贴合方法,所述贴合装置包括：第一治具,用于固定所述曲面基板；第二治具,与所述第一治具相对设置,所述第二治具包括采用弹性变形材料制成的弹性支撑件,所述弹性支撑件在面向所述第一治具的一侧具有用于固定所述柔性膜层的弹性支撑面,所述弹性支撑面的形状与所述曲面基板的形状相匹配,且所述弹性支撑件内部具有中空的囊体结构,所述囊体结构用于在流体的压力作用下,使所述弹性支撑面发生弹性形变,以向所述柔性膜层施加贴合压力。本发明的目的在于提供一种贴合装置及贴合方法,能够提升贴合均匀性,减少贴合气泡及反弹气泡,提升产品良率。(The invention provides a laminating device and a laminating method, wherein the laminating device comprises: the first jig is used for fixing the curved substrate; the second tool, with first tool sets up relatively, the second tool is including the elastic support piece who adopts the elastic deformation material to make, elastic support piece is facing one side of first tool has the elastic support face that is used for fixing flexible rete, the shape of elastic support face with the shape phase-match of curved surface base plate, just elastic support piece is inside to have hollow utricule structure, the utricule structure is used for under fluidic pressure effect, makes elastic support face takes place elastic deformation, in order to flexible rete applys laminating pressure. The invention aims to provide a laminating device and a laminating method, which can improve the laminating uniformity, reduce laminating bubbles and rebound bubbles and improve the product yield.)

1. A laminating device is used for laminating a flexible film layer and a curved substrate; its characterized in that, laminating device includes:

the first jig is used for fixing the curved substrate;

the second tool, with first tool sets up relatively, the second tool is including the elastic support piece who adopts the elastic deformation material to make, elastic support piece is facing one side of first tool has the elastic support face that is used for fixing flexible rete, the shape of elastic support face with the shape phase-match of curved surface base plate, just elastic support piece is inside to have hollow utricule structure, the utricule structure is used for under the pressure effect of fluid, makes elastic support face takes place elastic deformation, in order to flexible rete applys laminating pressure.

2. The laminating device of claim 1,

the curved substrate comprises a plane part and a curved part;

the elastic support surface of the elastic support member includes:

the plane area is used for applying pressure to the flexible film layer so as to enable the flexible film layer to be attached to the plane part of the curved substrate;

the arc-shaped area is used for applying pressure to the flexible film layer so as to enable the flexible film layer to be attached to the curved surface part of the curved surface substrate;

wherein, in the elastic support, at least the position corresponding to the arc-shaped area is provided with the capsule structure.

3. The laminating device of claim 2,

the inner part of the elastic supporting piece is of a solid structure at the position corresponding to the plane area.

4. The laminating device of claim 2,

the number of the capsule structures is at least four, and the capsule structures are distributed at the positions corresponding to the four corners of the curved substrate.

5. The laminating device of claim 4,

each balloon structure is separately connected with an air passage, and each balloon structure is separately connected with a corresponding inflation mechanism through the corresponding air passage.

6. The laminating device of claim 2,

the curved surface shape of the inner surface of the bag body structure is matched with the curved surface shape of the corresponding position of the elastic supporting surface.

7. The laminating device of claim 1,

the elastic supporting piece is integrally formed by adopting a rubber material.

8. The laminating device of claim 1,

the first jig is provided with a groove, and the shape of the groove is matched with that of the curved substrate and used for containing the curved substrate.

9. A laminating method is used for laminating a flexible film layer and a curved substrate; the attaching device according to any one of claims 1 to 8, wherein the attaching method comprises:

fixing the curved substrate in a first jig;

fixing the flexible film layer on the elastic supporting surface of the second jig;

and driving the second jig to move towards the direction close to the first jig, and controlling the pressure of the fluid filled in the capsule structure so as to apply the laminating pressure to the flexible film layer, so that the flexible film layer is fixedly laminated with the curved substrate.

10. The method according to claim 9, applied to a fitting device according to claim 5, wherein the operating state of the inflation mechanism corresponding to each of the bladder structures is controlled individually to control the fluid pressure of each of the bladder structures individually.

Technical Field

The invention relates to the technical field of display, in particular to a laminating device and a laminating method.

Background

With the development of science and technology, curved surface screens are more and more favored by people. Curved screens typically include a curved cover plate and a flexible display panel attached to the curved cover plate. The curved cover plate can be a cover plate with two ends bent inwards, and the flexible display panel can be attached to the inner side of the curved cover plate.

Disclosure of Invention

The invention aims to provide a laminating device and a laminating method, which can improve the laminating uniformity, reduce laminating bubbles and rebound bubbles and improve the product yield.

The technical scheme provided by the invention is as follows:

the embodiment of the invention provides at least one fitting device, which is used for fitting a flexible film layer with a curved substrate; the attaching device includes:

the first jig is used for fixing the curved substrate;

the second tool, with first tool sets up relatively, the second tool is including the elastic support piece who adopts the elastic deformation material to make, elastic support piece is facing one side of first tool has the elastic support face that is used for fixing flexible rete, the shape of elastic support face with the shape phase-match of curved surface base plate, just elastic support piece is inside to have hollow utricule structure, the utricule structure is used for under fluidic pressure effect, makes elastic support face takes place elastic deformation, in order to flexible rete applys laminating pressure.

Illustratively, the curved substrate includes a planar portion and a curved portion;

the elastic support surface of the elastic support member includes:

the plane area is used for applying pressure to the flexible film layer so as to enable the flexible film layer to be attached to the plane part of the curved substrate;

the arc-shaped area is used for applying pressure to the flexible film layer so as to enable the flexible film layer to be attached to the curved surface part of the curved surface substrate;

wherein, in the elastic support, at least the position corresponding to the arc-shaped area is provided with the capsule structure.

Illustratively, the interior of the elastic support is a solid structure at a location corresponding to the planar area.

Illustratively, the number of the capsule structures is at least four, and the capsule structures are distributed at positions corresponding to four corners of the curved substrate.

Illustratively, each of the balloon structures is individually connected with an air passage, and each of the balloon structures is individually connected to a corresponding inflation mechanism through its corresponding air passage.

Illustratively, the curved shape of the inner surface of the capsule structure matches the curved shape of the corresponding location of the elastic support surface.

Illustratively, the elastic supporting piece is integrally formed by adopting a rubber material.

Illustratively, the first jig is provided with a groove, and the shape of the groove is matched with the shape of the curved substrate and is used for accommodating the curved substrate.

The embodiment of the invention also provides a laminating method, which is used for laminating the flexible film layer and the curved substrate; with the adoption of the attaching device, the attaching method comprises the following steps:

fixing the curved substrate in a first jig;

fixing the flexible film layer on the elastic supporting surface of the second jig;

and driving the second jig to move towards the direction close to the first jig, and controlling the pressure of the fluid filled in the capsule structure so as to apply the laminating pressure to the flexible film layer, so that the flexible film layer is fixedly laminated with the curved substrate.

Illustratively, in the method, the operating state of the inflation mechanism corresponding to each of the capsule structures is individually controlled to individually control the fluid pressure of each of the capsule structures.

The beneficial effects brought by the invention are as follows:

the invention provides a laminating device and a laminating method, wherein a first jig in the laminating device is used for fixing a curved substrate, an elastic support part on a second jig is provided with an elastic support surface, the shape of the elastic support surface is matched with that of the curved substrate, a flexible film layer can be fixed on the elastic support surface, a hollow bag body structure is arranged inside the elastic support part, fluid pressure in the bag body structure can deform the elastic support surface, thus, when the flexible film layer is laminated on the curved substrate, the flexible substrate is fixed on the elastic support surface, after the curved substrate is fixed on the first jig, the first jig and the second jig are controlled to move oppositely, and the fluid pressure filled in the bag body structure is controlled to apply pressure to the flexible film layer, so that the laminating tightness of the flexible film layer and the curved substrate is ensured, promote the laminating homogeneity, reduce laminating bubble and bounce-back bubble, promote the product yield, reduce disability rate and rework rate.

Drawings

FIG. 1 is a schematic diagram of a conformable device according to an exemplary embodiment of the present invention prior to inflation of a bladder structure;

FIG. 2 is a schematic diagram of a conformable device according to an exemplary embodiment of the present invention after inflation of a bladder structure;

fig. 3 is a top view of a lower jig of a bonding apparatus according to an exemplary embodiment of the present invention.

Detailed Description

In order to make the objects, technical solutions and advantages of the embodiments of the present disclosure more apparent, the technical solutions of the embodiments of the present disclosure will be described clearly and completely with reference to the drawings of the embodiments of the present disclosure. It is to be understood that the described embodiments are only a few embodiments of the present disclosure, and not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the described embodiments of the disclosure without any inventive step, are within the scope of protection of the disclosure.

Unless otherwise defined, technical or scientific terms used herein shall have the ordinary meaning as understood by one of ordinary skill in the art to which this disclosure belongs. The use of "first," "second," and similar terms in this disclosure is not intended to indicate any order, quantity, or importance, but rather is used to distinguish one element from another. Also, the use of the terms "a," "an," or "the" and similar referents do not denote a limitation of quantity, but rather denote the presence of at least one. The word "comprising" or "comprises", and the like, means that the element or item listed before the word covers the element or item listed after the word and its equivalents, but does not exclude other elements or items. The terms "connected" or "coupled" and the like are not restricted to physical or mechanical connections, but may include electrical connections, whether direct or indirect. "upper", "lower", "left", "right", and the like are used merely to indicate relative positional relationships, and when the absolute position of the object being described is changed, the relative positional relationships may also be changed accordingly.

Aiming at the problems of untight bonding, bubble generation and the like in the flexible display screen bonding in the prior art, the embodiment of the invention provides the bonding device and the bonding method, which can improve the bonding uniformity, reduce the bonding bubbles and rebound bubbles and improve the product yield.

As shown in fig. 1 to 3, the attaching device provided in the embodiment of the present invention is used for attaching a flexible film layer to a curved substrate; the attaching device includes:

a first fixture 100 for fixing the curved substrate 10;

the second jig 200 is opposite to the first jig 100, the second jig 200 includes an elastic supporting member 210 made of an elastic deformation material, the elastic supporting member 210 has an elastic supporting surface facing the first jig 100 and used for fixing the flexible film layer 20, the shape of the elastic supporting surface is matched with that of the curved substrate 10, a hollow capsule structure 300 is arranged inside the elastic supporting member 210, and the capsule structure 300 is used for making the elastic supporting surface elastically deform under the action of fluid pressure so as to apply the fitting pressure to the flexible film layer 20.

In the above scheme, the first fixture 100 is used to fix the curved substrate 10, the elastic support 210 on the second fixture 200 has an elastic support surface, the shape of the elastic support surface matches with the shape of the curved substrate 10, the flexible film 20 can be fixed on the elastic support surface, a hollow bag structure 300 is disposed inside the elastic support 210, fluid (non-newtonian fluid, which may be gas or liquid) can be filled in the bag structure 300, and the fluid pressure in the bag structure can deform the elastic support surface to apply the bonding pressure to the flexible film 20. Like this, will flexible rete 20 laminating extremely when curved surface base plate 10 is gone up, will flexible base plate fixes on the elastic support face, curved surface base plate 10 is fixed after first tool 100 is gone up, control first tool 100 with second tool 200 moves in opposite directions, through control fluid pressure that fills in utricule structure 300 can make the elastic support face takes place to deform, does flexible rete 20 exerts pressure, guarantees the compactness of this flexible rete 20 and curved surface base plate 10 laminating, promotes the laminating homogeneity, reduces laminating bubble and bounce-back bubble, promotes the product yield, reduces disability rate and rework rate.

It should be noted that the attaching device provided in the embodiment of the present invention may be used to attach the flexible film layer 20 to the curved substrate 10, where the flexible film layer 20 may be a flexible display panel, and the curved substrate 10 may be a curved cover plate, but not limited thereto, the flexible film layer 20 may also be other flexible film layers 20, for example: when the flexible film layer 20 is a heat dissipation film, the curved substrate 10 may be a curved cover plate to which a flexible display panel is attached.

In addition, it should be noted that the magnitude of the fluid pressure in the capsule structure 300 may be positively correlated to the magnitude of the applying pressure applied by the capsule structure 300 to the flexible film layer 20, that is, the greater the fluid pressure in the capsule structure 300, the greater the pressure applied by the capsule structure 300 to the flexible film layer 20; the lower the fluid pressure within the bladder structure 300, the lower the pressure exerted by the bladder structure 300 on the flexible membrane layer 20.

In an exemplary embodiment provided by the present invention, as shown in fig. 1, the curved substrate 10 includes a planar portion and a curved portion; the elastic support surface of the elastic support 210 comprises a plane area and an arc area, wherein the plane area is used for applying pressure to the flexible film layer 20 so as to make the flexible film layer 20 fit with the plane part of the curved substrate 10; the arc-shaped area is used for applying pressure to the flexible film layer 20 so as to enable the flexible film layer 20 to be attached to the curved surface part of the curved substrate 10; wherein the capsule structure 300 is disposed inside the elastic support 210 at least at a position corresponding to the arc-shaped area.

In the above scheme, because the curved surface shape of the elastic supporting surface and the curved surface shape of the curved surface substrate 10 need to be highly consistent in the process of attaching the curved surface substrate 10 and the flexible film layer 20, if the curved surface shape of the elastic supporting surface and the curved surface shape of the curved surface substrate 10 are inconsistent, the attachment is not tight, which causes problems of bubbles and the like, especially, the problem of easy attachment untight in the arc-shaped area of the curved surface substrate 10 is easily generated, by adopting the above scheme, the bag structure 300 is arranged in the elastic supporting member 210 at least at the position corresponding to the arc-shaped area, so that the expansion degree of the bag structure 300 can be controlled by fluid pressure, so as to achieve the purpose of pressurizing the flexible film layer 20 corresponding to the arc-shaped area.

In addition, as shown in fig. 1, in the exemplary embodiment of the present invention, the inside of the elastic supporting member 210 is a solid structure at a position corresponding to the plane area.

By adopting the above scheme, in the process of attaching the curved substrate 10 and the flexible film layer 20, when the plane portion of the curved substrate 10 is attached to the plane area of the elastic supporting surface, the problem of untight attachment is generally not generated, therefore, the solid structure is arranged in the position corresponding to the plane area inside the elastic supporting member 210, the capsule structure 300 is not required to be arranged separately, and the solid structure is arranged in the position corresponding to the plane area inside the elastic supporting member 210, so that the difference between the applied pressure in the plane area and the applied pressure in the arc area can be ensured, and the local applied pressure in the arc area can achieve the expected effect.

In addition, because the curvature of the curved substrate 10 is not consistent with that of the elastic supporting surface, the flexible film 20 is not tightly adhered to the curved substrate 10, and bubbles are generated, especially at the four corners of the curved substrate 10, the bubble phenomenon is more serious, and therefore, in an exemplary embodiment, as shown in the drawing, the number of the bladder structures 300 is at least four, and the bladder structures 300 are distributed at the positions corresponding to the four corners of the curved substrate 10, that is, the elastic supporting member 210 adopts a solid supporting member, the bladder structures 300 are additionally arranged at the positions corresponding to the four corners of the curved substrate 10, and the expansion degree of the bladder structures 300 is controlled by fluid pressure, so as to achieve the purpose of pressurizing the corners of the curved substrate 10.

It is understood that, in practical applications, the capsule structure 300 may be disposed in other corresponding areas of the curved substrate 10.

Furthermore, as shown in fig. 1-3, in an exemplary embodiment, each of the bladder structures 300 is individually connected with an air passage 310, and each of the bladder structures 300 is individually connected to a corresponding inflation mechanism through its corresponding air passage 310.

By adopting the above scheme, the capsule structures 300 corresponding to the four corners of the curved substrate 10 can be controlled by each capsule structure 300 through an independent inflation mechanism, so that the fluid pressure in each capsule structure 300 can be quantified, and the adjustment and management of an operator are facilitated.

Furthermore, as shown, in an exemplary embodiment, an air passage 310 corresponding to each of the balloon structures 300 is further disposed in the elastic supporting member 210, an air tube 320 is correspondingly connected to the outside of each air passage 310, the air tube 320 is communicated with an external fluid pressure device, and a throttle valve 330 is disposed on the air tube.

It will be understood, of course, that each of the bladder structures 300 may be controlled in fluid pressure by the same inflation mechanism.

Furthermore, as shown in fig. 1 and 2, in the disclosed embodiment of the present invention, the curved shape of the inner surface of the capsule structure 300 matches the curved shape at the corresponding position of the elastic support surface.

By adopting the above scheme, the curved surface shape of the inner surface of the capsule structure 300 is matched with the curved surface shape of the corresponding position of the elastic supporting surface, so that when the elastic supporting surface deforms due to the expansion of the capsule structure 300, the curved surface shape of the elastic supporting surface can still be the arc shape with the curvature close to the curved surface substrate 10, and the pressure applied to the flexible film layer 20 can be ensured to be more uniform.

Further, in an exemplary embodiment, the elastic support 210 is integrally formed of a rubber material. It is understood that the elastic supporting member 210 may be made of other elastic deformation materials, which is not limited herein.

In addition, in an exemplary embodiment, as shown in fig. 1 and 2, the first fixture 100 includes a first base, and the first base is provided with a groove, and the shape of the groove matches with the shape of the curved substrate 10, so as to accommodate the curved substrate 10. It is understood that the first fixture 100 may also fix the curved substrate 10 by other methods.

In addition, as shown in fig. 1 to fig. 3, the second fixture 200 further includes a second base 201, the elastic support 210 is fixed on the second base 201 by fixing mechanisms 202 on two sides, and the second base 201 is further provided with a clamping mechanism 203 for clamping the flexible film layer 20.

In addition, the embodiment of the present invention at least provides a bonding method, which is used for bonding the flexible film layer 20 and the curved substrate 10 by using the bonding device provided by the embodiment of the present invention; the attaching method comprises the following steps:

fixing the curved substrate 10 in the first fixture 100;

fixing the flexible film layer 20 on the elastic supporting surface of the second fixture 200;

the second fixture 200 is driven to move towards the direction close to the first fixture 100, and the pressure of the fluid filled in the capsule structure 300 is controlled to apply the bonding pressure to the flexible film 20, so that the flexible film 20 is bonded and fixed with the curved substrate 10.

According to the scheme, the flexible film layer 20 is attached to the curved surface substrate 10, the flexible substrate is fixed to the elastic supporting surface, the curved surface substrate 10 is fixed to the first jig 100, then the first jig 100 and the second jig 200 are controlled to move oppositely, the elastic supporting surface is deformed by controlling the fluid pressure filled in the bag body structure 300, the flexible film layer 20 applies pressure, the attaching tightness of the flexible film layer 20 and the curved surface substrate 10 is guaranteed, the attaching uniformity is improved, attaching bubbles and rebound bubbles are reduced, the product yield is improved, and the rejection rate and the rework rate are reduced.

In addition, in the method, the operating state of the inflation mechanism corresponding to each of the capsule structures 300 is individually controlled, so as to individually control the fluid pressure of each of the capsule structures 300.

By adopting the above scheme, the capsule structures 300 corresponding to the four corners of the curved substrate 10 can be controlled by each capsule structure 300 through an independent inflation mechanism, so that the fluid pressure in each capsule structure 300 can be quantified, and the adjustment and management of an operator are facilitated.

The following points need to be explained:

(1) the drawings of the embodiments of the disclosure only relate to the structures related to the embodiments of the disclosure, and other structures can refer to the common design.

(2) For purposes of clarity, the thickness of layers or regions in the figures used to describe embodiments of the present disclosure are exaggerated or reduced, i.e., the figures are not drawn on a true scale. It will be understood that when an element such as a layer, film, region, or substrate is referred to as being "on" or "under" another element, it can be "directly on" or "under" the other element or intervening elements may be present.

(3) Without conflict, embodiments of the present disclosure and features of the embodiments may be combined with each other to arrive at new embodiments.

The above description is only for the specific embodiments of the present disclosure, but the scope of the present disclosure is not limited thereto, and the scope of the present disclosure should be subject to the claims.