CN215712760U

CN215712760U - Flexible use membrane of curved screen that can fix a position

Info

Publication number: CN215712760U
Application number: CN202121378479.4U
Authority: CN
Inventors: 刘东明; 冒小峰; 王庆; 麦启波
Original assignee: Jiangsu Huangguan New Material Technology Co ltd
Current assignee: Jiangsu Huangguan New Material Technology Co ltd
Priority date: 2021-06-21
Filing date: 2021-06-21
Publication date: 2022-02-01
Anticipated expiration: 2031-06-21

Abstract

The utility model relates to a positionable flexible use film for a curved screen, which comprises a use layer, wherein one end of the use layer is provided with a protective layer, the protective layer is the outer surface of the flexible use film, the other end of the use layer is integrated with a release film, an AB glue layer and an adhesive film, and cutting areas are arranged in the release film, the AB glue layer and the adhesive film, namely the release film, the AB glue layer and the adhesive film are divided into two symmetrical areas. This novel flexible use membrane of curved surface screen is counterpointed simply in the use, can the repeated positioning, also need not specific positioning tool, and the laminating location is accurate, has increased the pad pasting success rate.

Description

Flexible use membrane of curved screen that can fix a position

Technical Field

The utility model relates to the technical field of flexible screen laminating technology, in particular to a positionable flexible use film for a curved screen.

Background

With the rapid development of the mobile phone industry, curved screens such as 2.5D, 3D and waterfall screens are increasingly popularized, and the screen protective film is updated and updated along with the development of the screen protective film, the initial single-layer PET hard film is developed into a double-layer PET hot-pressing film, and then the PET and TPU composite protective film or TPU self-repairing protective film is developed, and the protective film is also softer and softer along with the change of the protective film base material, so that the defects of easy attachment dislocation, poor reworkability and high film attaching cost are caused in the film attaching process.

SUMMERY OF THE UTILITY MODEL

Therefore, the utility model aims to solve the technical problem that the existing curved surface protective film in the market in the prior art is mostly a TPU (thermoplastic polyurethane) base material or a TPU (thermoplastic polyurethane) thinned PET (polyethylene terephthalate) composite base material, the protective film is easy to misplace in the laminating process and cannot be reworked due to the fact that the adhesive layer is made of high-viscosity silica gel and the base material is too soft, and the poor laminating experience is brought to consumers due to the fact that the protective film is laminated by a special machine or a person specially assigned to a special sales shop, so that the positionable curved surface screen flexible use film is provided.

In order to solve the technical problem, the flexible use film for the positionable curved screen comprises a use layer, wherein one end of the use layer is provided with a protective layer, the protective layer is the outer surface of the flexible use film, the other end of the use layer is integrally provided with a release film, an AB glue layer and an adhesive film, and cutting areas are arranged in the release film, the AB glue layer and the adhesive film, namely the release film, the AB glue layer and the adhesive film are divided into two symmetrical areas.

In one embodiment of the utility model, the adhesive film is a PET film with the thickness of 50-100 μm or a non-silicon release film.

In one embodiment of the utility model, the attaching film is connected with the AB glue layer through the attaching surface of the AB glue layer.

In one embodiment of the utility model, the thickness of the AB glue layer is 60-100 μm, and the AB glue layer is arranged between the release film and the attaching film.

In one embodiment of the utility model, the low-viscosity surface of the AB glue layer is connected with the attaching film, the physical property of the low-viscosity surface is 1-20gf/25mm, the high-viscosity surface of the AB glue layer is connected with the release film, and the delamination force of the high-viscosity surface is more than 500gf/25 mm.

In one embodiment of the utility model, the delamination force between the adhesive film and the AB glue layer is smaller than the delamination force between the release film and the use layer and smaller than the delamination force between the use layer and the protection layer.

In one embodiment of the utility model, the thickness of the release film is 25-75 μm, and the release film is transparent fluoride release film or non-silicon release film.

In one embodiment of the utility model, the substrate in the use layer is a composite substrate of 25-75 μm POT and 25-75 μm TPU, and the thickness of the composite substrate is 50-100 μm.

In one embodiment of the utility model, the pressure-sensitive adhesive system in the use layer is silica gel, the coating thickness of the pressure-sensitive adhesive is 10-40 μm, and the adhesion force of the silica gel pressure-sensitive adhesive to the AF screen is more than 20gf/25 mm.

In one embodiment of the utility model, the base material of the protective layer is 25 μm-100 μm transparent PET, and the pressure-sensitive adhesive system in the protective layer is acrylic or silica gel.

Compared with the prior art, the utility model has the advantages that: this novel flexible use membrane of curved surface screen is counterpointed simply in the use, can the repeated positioning, also need not specific positioning tool, and the laminating location is accurate, has increased the pad pasting success rate.

Drawings

In order that the present disclosure may be more readily and clearly understood, reference will now be made in detail to the present disclosure, examples of which are illustrated in the accompanying drawings.

Fig. 1 is a schematic view of a positionable curved screen flexible use membrane configuration.

Fig. 2 is a schematic structural diagram of a positionable curved screen flexible use film in a use state.

As shown in the figure: 1. the adhesive comprises an adhesive film, 2, an AB adhesive layer, 3, a release film, 4, a use layer, 5 and a protective layer.

Detailed Description

As shown in fig. 1 and fig. 2, this embodiment provides a flexible use film of curved screen that can fix a position, including using layer 4, the one end of using layer 4 be equipped with protective layer 5, protective layer 5 be the surface of this flexible use film, the other end integration of using layer 4 be equipped with from type membrane 3, AB glue film 2, laminating film 1, from type membrane 3, AB glue film 2, laminating film 1 in be equipped with the cutting off region, as shown in fig. 2, promptly from type membrane 3, AB glue film 2, laminating film 1 divide into two symmetrical regions.

The flexible use film manufacturing process of the curved screen comprises the following steps:

step S1: a layer of AB glue layer 2 with excellent low-adhesive surface air release performance is adhered below the release film 3, and the structure is shown in figure 1;

step S2: the AB glue layer 2 is provided with a pasting film 1;

step S3: then cutting off the adhesive film 1, the AB glue layer 2 and the release film 3 from the middle by a precision die cutting machine, as shown in figure 2;

step S4: during the use, tear earlier off laminating membrane 1, the laminating is on the cell-phone screen, then tears half from one end with the integrated configuration of protective layer 5 and service layer 4, laminates to both sides respectively from the intermediate position to accomplish the laminating of flexible protection film under the prerequisite of location.

The attaching film 1 is a PET substrate with the thickness of 50-100 μm or a non-silicon release film.

Laminating membrane 1 and AB glue film 2 between link to each other through AB glue film 2 adhesion surface.

The thickness of the AB glue layer 2 is 60-100 μm, and the AB glue layer 2 is arranged between the release film 3 and the laminating film 1.

As the improvement, AB glue film 2 has excellent air discharge and heavy industry performance, can easily tear the lifting worker when counterpointing badly, promotes laminating success rate and laminating efficiency by a wide margin.

The low-adhesion surface of the AB glue layer 2 is connected with the adhesive film 1, the physical property of the low-adhesion surface is 1-20gf/25mm, the high-adhesion surface of the AB glue layer 2 is connected with the release film 3, the layering force of the high-adhesion surface is greater than 500gf/25mm, and the AB glue layer 2 realizes the positioning effect according to the layering force of the adhesion surface of the AB glue layer 2.

The layering power between laminating membrane 1 and AB glue film 2 be less than from the layering power between type membrane 3 and the layer 4 of using, and be less than the layering power between layer 4 of using and protective layer 5.

The thickness of the release film 3 is 25-75 μm, and the release film is transparent fluoride release film or non-silicon release film.

The film in the use layer 4 is a 25-75 μm PET and 25-75 μm TPU composite base material, and the thickness of the composite base material is 50-100 μm.

The pressure-sensitive adhesive system in the use layer 4 is silica gel, the coating thickness of the pressure-sensitive adhesive is 10-40 μm, and the adhesive force of the silica gel pressure-sensitive adhesive to the AF screen is more than 20gf/25 mm.

The base material of the protective layer 5 is transparent PET with the thickness of 25-100 μm, and the pressure-sensitive adhesive system in the protective layer 5 is acrylic or silica gel.

It should be understood that the above examples are only for clarity of illustration and are not intended to limit the embodiments. Other variations and modifications will be apparent to persons skilled in the art in light of the above description. And are neither required nor exhaustive of all embodiments. And obvious variations or modifications of the utility model may be made without departing from the spirit or scope of the utility model.

Claims

1. A positionable flexible use membrane for curved screens, comprising a use layer (4), characterized in that: the one end of use layer (4) be equipped with protective layer (5), protective layer (5) use the surface of membrane for this flexibility, the other end integration of use layer (4) be equipped with from type membrane (3), AB glue film (2), laminating membrane (1), from type membrane (3), AB glue film (2), laminating membrane (1) in be equipped with cut-off region, promptly from type membrane (3), AB glue film (2), laminating membrane (1) divide into two symmetrical regions respectively.

2. A positionable, curved screen, flexible use membrane according to claim 1, wherein: the adhesive film (1) is a PET film or a non-silicon release film with the thickness of 50-100 mu m.

3. A positionable, curved screen, flexible use membrane according to claim 1, wherein: the adhesive film (1) is connected with the AB adhesive layer (2) through the adhesive surface of the AB adhesive layer (2).

4. A positionable, curved screen, flexible use membrane according to claim 1, wherein: the thickness of the AB glue layer (2) is 60-100 mu m, and the AB glue layer (2) is arranged between the release film (3) and the adhesive film (1).

5. A positionable, curved screen, flexible use membrane according to claim 1, wherein: the low-viscosity surface of the AB glue layer (2) is connected with the adhesive film (1), the physical property of the low-viscosity surface is 1-20gf/25mm, the high-viscosity surface of the AB glue layer (2) is connected with the release film (3), and the layering force of the high-viscosity surface is greater than 500gf/25 mm.

6. A positionable, curved screen, flexible use membrane according to claim 1, wherein: the layering force between the adhesive film (1) and the AB adhesive layer (2) is smaller than that between the release film (3) and the use layer (4), and is smaller than that between the use layer (4) and the protective layer (5).

7. A positionable, curved screen, flexible use membrane according to claim 1, wherein: the thickness of the release film (3) is 25-75 μm, and the release film is transparent fluoride release film or non-silicon release film.

8. A positionable, curved screen, flexible use membrane according to claim 1, wherein: the base material in the use layer (4) is a 25-75 μm PET and 25-75 μm TPU composite base material, and the thickness of the composite base material is 50-100 μm.

9. A positionable, curved screen, flexible use membrane according to claim 1, wherein: the pressure-sensitive adhesive system in the use layer (4) is silica gel, the coating thickness of the pressure-sensitive adhesive is 10-40 μm, and the adhesive force of the silica gel pressure-sensitive adhesive to the AF screen is more than 20gf/25 mm.

10. A positionable, curved screen, flexible use membrane according to claim 1, wherein: the base material of the protective layer (5) is transparent PET with the thickness of 25-100 μm, and the pressure-sensitive adhesive system in the protective layer (5) is acrylic or silica gel.