CN102371678A - Lamination method and lamination equipment - Google Patents

Abstract

The invention discloses a pressing method and pressing equipment thereof. The pressing method includes the following steps. First, a pressing device is provided. The pressing device comprises a reaction chamber, a first platform, a second platform and an air bag, wherein the first platform and the second platform are oppositely arranged in the reaction chamber, and the air bag is arranged on one surface of the first platform facing the second platform. Then, a first assembly and a second assembly are arranged between the first platform and the second platform. Then, a first pressure is formed in the reaction chamber, and a second pressure is formed in the air bag, wherein the first pressure is smaller than the second pressure, so that the air bag is expanded. And then, pressing the first assembly and the second assembly between the first platform and the second platform by using the air bag of the first platform. Therefore, the air bag can automatically compensate the pressure difference, thereby reducing the product yield problems of bubble generation and the like caused by different pressure forces at each point on the joint surface of the first component and the second component.

Description

Lamination method and lamination equipment

technical field

The present invention relates to a pressing method and its pressing equipment, in particular to a pressing method and its pressing equipment which can adjust the amount of pressure at each point by using a deformable airbag to press the components to be joined.

Background technique

Press bonding is a common joining method that can be used to join two separate films and other components. To put it simply, the lamination process is to pressurize the two components to be bonded between the two platforms through the upper and lower platforms, so that the two separated components are bonded to each other. For example, in the manufacturing process of the display device, the assembly between the polarizing plate and the glass substrate of the display device can achieve the effect of bonding the polarizing plate and the glass substrate through a pressing manufacturing process.

Please refer to FIG. 1 . FIG. 1 shows a schematic diagram of a lamination method and lamination equipment in the prior art. As shown in FIG. 1 , a pressing device 100 is provided first. The pressing device 100 includes a first platform 11 and a second platform 12 . Next, the first component 13 and the second component 14 are stacked on the second platform 12 , and a layer of adhesive material 15 is disposed between the first component 13 and the second component 14 . Then, using the pressing between the first platform 11 and a second platform 12, an appropriate force is applied to the first component 13 and the second component 14, so that the first component 13 can be bonded to the second component through the adhesive material 15. Component 14 on.

However, after the pressing process, air bubbles 16 often remain between the first component 13 and the adhesive material 15, or exist between the adhesive material 15 and the second component 14, etc., and these air bubbles 16 will make the first component 13 The bonding area between the first component 13 and the adhesive material 15 , or between the second component 14 and the adhesive material 15 is reduced, thereby reducing the bonding force between the first component 13 , the second component 14 , and the adhesive material 15 . Wherein, when both the first component 13 and the second component 14 have hard surfaces, the air bubbles 16 are more likely to be generated. In particular, as shown in FIG. 1 , when the surface of the second component 14 facing the second platform 12 has an uneven surface, air bubbles 16 will be generated due to different pressures at each contact point. What's more, because the air bubbles 16 are filled with gas, the volume of the air bubbles 16 will expand with heat and contract with cold as the ambient temperature changes, thus greatly reducing the reliability of the product. In addition, if the first component 13 and the second component 14 are a two-layer structure in a display device, air bubbles 16 may appear in the image display area of the display device, thereby affecting the quality of the image. Therefore, in order to improve the yield rate of products, how to reduce the generation of air bubbles in the lamination process is a difficult problem that the industry needs to overcome.

Contents of the invention

An object of the present invention is to provide a lamination method and lamination equipment thereof, so as to solve the problem of air bubbles in the lamination process in the prior art.

A preferred embodiment of the present invention provides a pressing method. This pressing method includes the following steps. First, a pressing device is provided. The pressing equipment includes a reaction chamber, a first platform and a second platform, and an air bag, wherein the first platform and the second platform are arranged oppositely in the reaction chamber, and the air bag is arranged on a side where the first platform faces the second platform. surface. Next, a first component and a second component are arranged between the first platform and the second platform. Subsequently, a first pressure is formed in the reaction chamber, and a second pressure is formed in the airbag, wherein the first pressure is lower than the second pressure, so that the airbag is inflated. Afterwards, the first component and the second component located between the first platform and the second platform are press-fitted by using the air bag of the first platform, so that the first component and the second component are joined to each other.

A preferred embodiment of the present invention further provides a pressing device. The pressing equipment includes a reaction chamber, a first platform and a second platform, and an air bag. The first platform and the second platform are oppositely arranged in the reaction chamber. In addition, the airbag is arranged on a surface of the first platform facing the second platform, wherein the airbag of the first platform is used for press-fitting a first component and a second component between the first platform and the second platform, so that The first component and the second component engage with each other.

The pressing method of the present invention and the pressing equipment thereof utilize an air bag on the first platform, and form different pressures on both sides of the air bag inside and outside, that is, the first pressure in the reaction chamber is lower than the second pressure in the air bag, Therefore, the pressure of each contact point in the subsequent pressing process can be automatically adjusted through the deformation of the airbag. In addition, when at least one of the first component and the second component has an uneven surface, the airbag of the present invention can automatically compensate the pressure difference, thereby reducing the joint surface of the first component and a second component, due to various points Product yield issues such as air bubbles caused by different pressures.

Description of drawings

Fig. 1 depicts a schematic diagram of a lamination method and lamination equipment in the prior art.

FIG. 2 and FIG. 3 are schematic diagrams of the pressing method and the pressing equipment thereof according to the first preferred embodiment of the present invention.

FIG. 4 is a schematic diagram of a lamination method and lamination equipment according to a second preferred embodiment of the present invention.

FIG. 5 is a schematic diagram of a lamination method and lamination equipment according to a third preferred embodiment of the present invention.

FIG. 6 is a schematic diagram of a lamination method and lamination equipment according to a fourth preferred embodiment of the present invention.

Wherein, the reference signs are explained as follows:

100 Pressing equipment 11 The first platform

12 second platform 13 first component

14 Second component 15 Adhesive material

16 bubbles 200 pressing equipment

20 reaction chamber 21 first platform

22 second platform 23 airbag

24 First component 25 Second component

26 Adhesive material 27 Joint

P1 first pressure P2 second pressure

300 pressing equipment 400 pressing equipment

500 pressing equipment

Detailed ways

Certain terms are used in the specification to refer to particular components. Those of ordinary skill in the art should understand that manufacturers may use different terms to refer to the same component. This manual does not use the difference in name as a way to distinguish components, but uses the difference in function of components as a basis for distinction. "Including" mentioned throughout the specification is an open term, so it should be interpreted as "including but not limited to". In order for those skilled in the art to have a better understanding of the present invention, several preferred embodiments of the present invention are enumerated below, together with the accompanying drawings, to describe the composition of the present invention in detail. It should be noted that the drawings are for illustration purposes only and are not drawn to original scale.

Please refer to Figure 2 and Figure 3. FIG. 2 and FIG. 3 are schematic diagrams of the pressing method and the pressing equipment thereof according to the first preferred embodiment of the present invention. As shown in Fig. 2, the pressing method of the first preferred embodiment includes the following steps. First, a pressing device 200 is provided. The pressing device 200 includes a reaction chamber 20 , a first platform 21 and a second platform 22 , and an airbag 23 . Wherein, the first platform 21 and the second platform 22 are disposed opposite to each other in the reaction chamber 20 , and the airbag 23 is disposed on a surface of the first platform 21 facing the second platform 22 . Wherein, the airbag 23 is made of soft material, but not limited thereto. In this preferred embodiment, the first platform 21 and the second platform 22 are arranged parallel to each other. More specifically, in the subsequent pressing process, the first platform 21 and the second platform 22 are press-fitted in a straight-down and straight-up manner.

Next, as shown in FIG. 2 , a first component 24 and a second component 25 to be pressure-bonded are arranged between the first platform 21 and the second platform 22 . In this preferred embodiment, the first component 24 and the second component 25 are stacked on the second platform 22 . Wherein, the pressing method of this preferred embodiment further includes an alignment step, so that the first component 24 and the second component 25 correspond to each other. More specifically, the first component 24 and the second component 25 are aligned with each other before the pressing step, so that in the subsequent pressing process, the first component 24 and the second component 25 are mutually aligned according to predetermined corresponding positions join. In addition, an adhesive material 26 is disposed on one side between the first component 24 and a second component 25 for adhering the first component 24 and the second component 25 . It is worth noting that the present invention uses the first component 24 and the second component 25 to represent the two objects that need to be pressure-bonded to simplify the description, but the application of the present invention is not limited to the practice of this embodiment. For example, more than three objects can be placed for pressure bonding, or the first component 24 and the second component 25 can be a single-layer structure or a multi-layer structure respectively. Furthermore, taking the application surface of the display device as an example, the pressing method of this preferred embodiment can be used to press and bond other components on the display device, such as touch screen (Touch panel), decorative board, lens (Lens), three-dimensional Display effect flat panel, etc., to improve the structural strength, brightness (Brightness), sunlight readability and other effects of the display device.

Then, as shown in FIG. 2 , a first pressure P1 is formed in the reaction chamber 20 and a second pressure P2 is formed in the airbag 23 , wherein the first pressure P1 is smaller than the second pressure P2 , so that the airbag 23 is inflated. More specifically, two pressure regulating devices (not shown) can be used to adjust the pressure of the space in the reaction chamber 20 and the space in the airbag 23 respectively, and the airbag 23 can be used to separate the two spaces with different pressures. In this preferred embodiment, the pressure adjusting device may be a pumping device, such as a vacuum pump, to make the first pressure P1 in the reaction chamber 20 lower than the second pressure P2 in the air bag 23 . In other words, the first vacuum degree in the reaction chamber 20 is greater than the second vacuum degree in the airbag 23 , thereby inflating the airbag 23 . In addition, according to the preferred embodiment, the space in the airbag 23 can be pumped first, and then the space in the reaction chamber 20 can be pumped. But the present invention is not limited thereto, and can be adjusted according to different application situations. For example, the space in the reaction chamber 20 may be evacuated first, and then the space in the airbag 23 may be evacuated; or, the spaces in the reaction chamber 20 and the airbag 23 may be evacuated at the same time. Accordingly, by evacuating the space in the reaction chamber 20 to the first pressure P1, the air in the reaction chamber 20 is less, which can reduce the chance of generating air bubbles in the subsequent pressure bonding process, and by making the reaction chamber 20 The first pressure P1 inside the airbag 23 is smaller than the second pressure P2 inside the airbag 23 , so that the airbag 23 is inflated. In addition, since the airbag 23 is made of soft materials, the airbag 23 can adjust the pressure of each contact point according to the surface shape of the components to be pressed and bonded during the subsequent lamination process.

It is worth noting that the present invention is not limited to the use of an air extraction device to change the pressure on both sides of the airbag 23, but also can use an inflator to change the pressure on both sides of the airbag 23, or use an air extraction device and an inflator respectively. equipment to achieve a similar effect. The latter case will be further explained below. For example, in another preferred embodiment, the pressure adjusting device used in the space in the reaction chamber 20 is an air suction device, and the pressure adjusting device used in the space in the airbag 23 is an inflating device. Accordingly, this method can also adjust the pressure, so that the first pressure P1 in the reaction chamber 20 is lower than the second pressure P2 in the air bag 23, and the air in the reaction chamber 20 can also be reduced to reduce subsequent pressurization. Chance of air bubbles during lamination. Therefore, as long as the pressing method utilizes the different pressures on the inner and outer sides of the airbag 23 to deform the airbag 23 to adjust the pressure of each contact point in the subsequent pressing process, it falls within the spirit and scope of the present invention.

Afterwards, as shown in Figure 3, the first assembly 24 and the second assembly 25 between the first platform 21 and the second platform 22 are press-fitted with the air bag 23 of the first platform 21, so that the first assembly 24 and the second assembly 25 may be bonded to each other by an adhesive material 26 . The pressing device 200 of this preferred embodiment can adjust the pressure of each contact point between the air bag 23 and the first component 24 through the deformation of the air bag 23, and then adjust the pressure between the first component 24 and a second component 25. The amount of pressure at the point of contact. Therefore, the pressure difference between the inner and outer sides of the airbag 23 , that is, the pressure applied to the first component 24 and the second component 25 to be pressurized and bonded, can be effectively controlled. In addition, when both the first component 24 and the second component 25 have a hard surface, or when at least one of the first component 24 and the second component 25 has an uneven surface, for example, when the first component 24 faces the second When there is a concave lens structure on the surface of a platform 21, the air bag 23 of the pressing device 200 of the preferred embodiment can automatically compensate the pressure difference, thereby reducing the joint surface of the first component 24 and a second component 25. Product yield issues such as air bubbles caused by different pressure points. Furthermore, this preferred embodiment can overcome the expected and unexpected material problems during the pressure bonding process, so that the pressure conditions of each contact point of the material are substantially the same. For example, when the material of the first component 24 or the second component 25 is deformed during the pressure lamination process, the airbag 23 in this preferred embodiment can also automatically compensate the pressure difference. In addition, the laminating equipment 200 of this preferred embodiment can make the space in the reaction chamber 20 form a high vacuum state, so as to effectively reduce air bubbles on the bonding surface of the first component 24 and a second component 25 during the press bonding process. opportunities generated.

The lamination method and lamination equipment of the present invention are not limited to the above-mentioned preferred embodiments, but have other different implementation modes. In order to simplify description and facilitate comparison, in several preferred embodiments below, the same symbols are used for the same components. Please refer to Figure 4 in conjunction with Figure 2. FIG. 4 is a schematic diagram of a lamination method and lamination equipment according to a second preferred embodiment of the present invention. As shown in Figure 4, the pressing device 300 of the second preferred embodiment is substantially the same as the pressing device 200 of the first preferred embodiment, and the pressing method of the second preferred embodiment is the same as that of the first preferred embodiment. The difference in the method mainly lies in the arrangement of the first component 24 and a second component 25 . As shown in Figure 4, before carrying out lamination manufacturing process, the first component 24 is placed on the air bag 23 of the first platform 21 and faces a surface of the second platform 22, and the second component 25 is placed on the second platform. The platform 22 faces a surface of the first platform 21 . Moreover, the first component 24 and the second component 25 are respectively placed on the predetermined positions on the first platform 21 and the second platform 22, and the relative positions of the first platform 21 and the second platform 22 can be adjusted so that the first component 24 and the second component 25 are simultaneously aligned with each other in the subsequent pressing process, so that the first component 24 and the second component 25 are joined to each other according to predetermined corresponding positions. It is worth noting that the second preferred embodiment utilizes a second component 25 with an uneven surface to illustrate the effects of the present invention. As shown in FIG. 4 , the surface of the second component 25 facing the second platform 22 has an uneven surface, so that part of the surface of the second component 25 is not in contact with the second platform 22 . In the absence of the air bag 23 , the amount of pressure on each contact point will be different during the subsequent pressing process, which may cause problems with product yield such as air bubbles. However, in this preferred embodiment, the first pressure P1 in the reaction chamber 20 can be lower than the second pressure P2 in the airbag 23, so that the airbag 23 can automatically compensate the pressure difference through deformation, so as to improve the product yield.

Please refer to FIG. 5 . FIG. 5 is a schematic diagram of a lamination method and lamination equipment according to a third preferred embodiment of the present invention. Wherein, the main difference between the pressing equipment 400 of the third preferred embodiment and the pressing equipment 200 of the first preferred embodiment lies in the arrangement of the first platform 21 and the second platform 22 . As shown in Figure 5, in the pressing device 400 of the third preferred embodiment, one side of the first platform 21 and one side of the second platform 22 are connected in a rotatable manner by a joint 27, such as the joint 27 It can be a hinge, but not limited thereto. More specifically, after the first component 24 and a second component 25 are placed on the second platform 22, the first platform 21 and the second platform 22 have an angle, and through the setting of the joint portion 27, the first platform 21 can rotate towards the second platform 22 , so that the air bag 23 of the first platform 21 presses the first component 24 and the second component 25 between the first platform 21 and the second platform 22 . In other words, the lamination device 400 of the third preferred embodiment performs pressure lamination in a rotating manner from an initial angled state, which is different from the lamination device 200 of the first preferred embodiment in a straight-down and straight-up manner Press fit. Accordingly, the third preferred embodiment can also automatically adjust the pressure of each contact point in the subsequent pressing process through the deformation of the airbag 23, reducing the yield of air bubbles and other products caused by the different pressure of each point. question.

Please refer to FIG. 6 . FIG. 6 is a schematic diagram of a lamination method and lamination equipment according to a fourth preferred embodiment of the present invention. Wherein, the pressing device 500 of the fourth preferred embodiment is substantially the same as the pressing device 400 of the third preferred embodiment, and the difference between the pressing method of the fourth preferred embodiment and the pressing method of the third preferred embodiment is mainly It lies in the arrangement of the first component 24 and a second component 25 . As shown in FIG. 6 , before pressing, the first component 24 is placed on a surface of the airbag 23 of the first platform 21 facing the second platform 22 , and the second component 25 is placed on the second platform 22 A surface facing the first platform 21 . Furthermore, in the subsequent pressing process, the first component 24 and the second component 25 are directly aligned during the pressing process. Accordingly, the fourth preferred embodiment can also automatically adjust the pressure of each contact point in the subsequent pressing process through the deformation of the airbag 23, reducing the yield of air bubbles and other products caused by the different pressure of each point. question.

In summary, the pressing method and the pressing equipment of the present invention utilize an air bag on the first platform, and form different pressures on the inside and outside of the air bag, that is, the first pressure in the reaction chamber is lower than that in the air bag. Therefore, the pressure of each contact point in the subsequent pressing process can be automatically adjusted through the deformation of the airbag. In addition, when at least one of the first component and the second component has an uneven surface, the airbag of the present invention can automatically compensate the pressure difference, thereby reducing the joint surface of the first component and a second component, due to various points Product yield issues such as air bubbles caused by different pressures. Furthermore, the present invention can overcome the problems of materials that may or may not be met during the press lamination process. For example, when the materials of the first component or the second component are deformed during the pressure-fitting process, the airbag of the present invention can make the pressure conditions of each contact point of the materials substantially the same. In addition, the present invention can make the space in the reaction chamber into a high vacuum state, thereby effectively reducing the chance of air bubbles on the bonding surface of the first component and a second component during the press bonding process.

The above descriptions are only preferred embodiments of the present invention, and all equivalent changes and modifications made according to the claims of the present invention shall fall within the scope of the present invention.

Claims (13)

1. A pressing method, characterized in that, comprising: A pressing device is provided, the pressing device includes a reaction chamber, a first platform and a second platform, and an air bag, wherein the first platform and the second platform are arranged in the reaction chamber oppositely, And the airbag is arranged on a surface of the first platform facing the second platform; a first component and a second component are arranged between the first platform and the second platform; forming a first pressure in the reaction chamber and forming a second pressure in the airbag, wherein the first pressure is lower than the second pressure, causing the airbag to expand; and The first component and the second component located between the first platform and the second platform are press-fitted by the air bag of the first platform, so that the first component and the second component are engaged with each other. 2. The pressing method according to claim 1, wherein the first platform and the second platform are arranged parallel to each other. 3 . The pressing method according to claim 1 , wherein one side of the first platform is connected to one side of the second platform in a rotatable manner through a joint. 4 . 4 . The lamination method according to claim 1 , wherein before lamination, the first component and the second component are stacked on the second platform. 5. The pressing method according to claim 1, wherein, before pressing, the first component is placed on a surface of the airbag of the first platform facing the second platform, and the The second component is placed on a surface of the second platform facing the first platform. 6 . The pressing method according to claim 1 , further comprising a positioning step, so that the first component and the second component correspond to each other. 7 . 7. The pressing method according to claim 1, wherein one side between the first component and the second component has an adhesive material for adhering the first component and the second component. 8. The pressing method according to claim 1, wherein at least one of the first component and the second component has an uneven surface. 9. A pressing device, characterized in that it comprises: a reaction chamber; A first platform and a second platform are relatively arranged in the reaction chamber; and An airbag is arranged on a surface of the first platform facing the second platform, wherein the airbag of the first platform is used to press fit a first component and a The second component engages the first component and the second component with each other. 10. The pressing device according to claim 9, wherein the reaction chamber has a first pressure, and the airbag has a second pressure, and the first pressure is lower than the second pressure, so that the airbag produce swelling. 11. The pressing device according to claim 9, wherein the air bag is made of soft material. 12. The laminating equipment as claimed in claim 9, wherein the first platform and the second platform are arranged parallel to each other. 13 . The pressing device according to claim 9 , wherein one side of the first platform is rotatably connected to one side of the second platform through a joint. 14 .

Images