Curved screen tempered film with high bonding strength

Abstract

The utility model discloses a curved screen tempered glass film with high bonding strength, which relates to the technical field of tempered glass films and comprises a curved tempered glass layer, the edge of the curved tempered glass layer is of a curved edge structure, a release film layer is arranged on the lower side surface of the curved tempered glass layer, and a lens hole is formed in the curved tempered glass layer. A frosted film frame is arranged around the edge of the lower side face of the curved tempered glass layer, and an adhesive layer is arranged between the frosted film frame and the curved tempered glass layer. Wherein the frosted film frame and the pasting layer are correspondingly arranged on the inner wall of the curved surface edge structure, and in the pasting process of the curved surface tempered glass film, when UV glue spreads to the curved surface structure area of the curved surface tempered glass layer, the surface area, making contact with the edge area of the curved surface structure, of the UV glue is increased through the frosted film frame; according to the invention, the UV glue can be better adhered to the curved-surface tempered glass after being subjected to ultraviolet curing treatment, so that the curved-surface tempered glass is firmer after being mounted, the bonding strength of the curved-surface tempered glass is improved, and the condition that the curved-surface tempered glass falls off due to viscosity reduction is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of tempered films, in particular to a curved screen tempered film with high adhesion strength. Background Art

[0002] A curved screen tempered film is a protective film specially designed to protect the screen of a curved screen mobile phone. Different from traditional flat tempered films, a curved screen tempered film must be able to adapt to the curvature of the screen and provide edge-to-edge protection.

[0003] Curved screen tempered films can be roughly divided into two types: full-glue tempered films and UV-cured tempered films. Among them, the UV-cured tempered film adopts a unique ultraviolet curing technology, making it perform better in terms of protection performance and adhesion, providing excellent screen protection and improving the user experience at the same time. It is an ideal choice for users who pursue high-quality screen protection.

[0004] After retrieval, it is found that as described in the Chinese utility model patent "A Curved Tempered Film for Mobile Phones" with the application number CN201920027777.5, "With the progress of technology, mobile phones have gradually become indispensable electronic devices in life. In order to further protect mobile phones, most people will attach a tempered film to the surface of the mobile phone to prevent the screen from being damaged when the mobile phone is impacted, causing greater losses. Therefore, the tempered film has become one of the indispensable accessories for protecting mobile phones. In the process of attaching most existing curved tempered films, due to problems in the manufacturing process of the tempered film, white edges appear around the tempered film when it is attached to the mobile phone. If not treated for a long time, dust will be adsorbed into the interior of the tempered film through the white edges, resulting in cracking and peeling of the tempered film, affecting the use of the tempered film."

[0005] Another example is the Chinese invention patent "A Dust-Proof Curved Tempered Film and Its Manufacturing Method" with the application number CN201911409203.5, which states that "Due to the existence of the edge curvature of curved screen mobile phones, it is difficult for traditional curved tempered films to be stably attached, and the edge part is prone to falling off and the coverage is incomplete. Moreover, after attachment, it cannot effectively improve the protection of the screen; at the same time, when traditional curved tempered films are attached to mobile phones, due to the difficulty in accurately positioning them, the problem of the curved tempered film being attached crooked often occurs, and it is also easy to cause the viscosity of the adhesive layer to decrease during the repeated positioning process during attachment, resulting in the problem of scrapping the curved tempered film. Since the cost of each curved tempered film is not low, it leads to adjustment, but this causes the problem of unstable reattachment."

[0006] In summary, after the existing tempered glass film for curved screens is attached, there is a phenomenon of white edges around the tempered glass film when it is attached to the mobile phone. If not processed for a long time, it is difficult for traditional curved tempered glass films to be stably attached, and due to the difficulty in accurately positioning them, the problem of the curved tempered glass film being attached crooked often occurs. It is easy to repeatedly position during the attachment process, resulting in a decrease in the viscosity of the adhesive layer, etc., leading to the problem of insufficient adhesion strength and detachment after the curved screen tempered glass film is attached well.

[0007] In view of this, it is necessary to propose a new technical solution to solve the above problems. Utility Model Content

[0008] The utility model aims to provide a technical solution that can solve the above problems to overcome the above deficiencies.

[0009] To achieve the above object, the utility model provides the following technical solution: A curved screen tempered glass film with high adhesion strength, including a curved tempered glass layer, the edge of the curved tempered glass layer is in a curved edge structure, a release film layer is provided on the lower side of the curved tempered glass layer, and a lens hole is provided on the curved tempered glass layer;

[0010] A frosted film frame is provided around the edge of the lower side of the curved tempered glass layer, and an adhesive layer is provided between the frosted film frame and the curved tempered glass layer;

[0011] Among them, the frosted film frame and the adhesive layer are both correspondingly arranged on the inner wall of the curved edge structure.

[0012] As a further scheme of the utility model: Both sides of the frosted film frame are frosted.

[0013] As a further scheme of the utility model: The adhesive layer is made of AB glue material.

[0014] As a further scheme of the utility model: A silk screen layer frame is provided on the edge of the outer surface of the curved tempered glass layer.

[0015] As a further scheme of the utility model: A glue absorption layer frame is provided on the lower side of the curved tempered glass layer.

[0016] As a further scheme of the utility model: A sealing layer frame is further provided on the lower side of the curved tempered glass layer, and the sealing layer frame is outside the glue absorption layer frame;

[0017] Among them, the bottom surfaces of the glue absorption layer frame and the sealing layer frame are flush.

[0018] As a further scheme of the utility model: The glue absorption layer frame is made of SAP material.

[0019] As a further solution of the present utility model: The sealing layer frame is made of silicone material.

[0020] As a further solution of the present utility model: An anti-fingerprint coating is applied to the upper side of the curved tempered glass layer.

[0021] Compared with the prior art, the beneficial effects of the present technical solution are as follows:

[0022] 1. During the attachment process of the curved tempered film, when the UV glue spreads to the curved structure area of the curved tempered glass layer, the frosted film frame is used to increase the surface area of contact between the UV glue and the edge area of the curved structure, which helps the UV glue to adhere to the curved tempered film better after being cured by ultraviolet rays, ensuring that the curved tempered film is more firmly installed after installation, improving the bonding strength of the curved tempered film, and improving the situation where the curved tempered film falls off due to the decrease in viscosity. At the same time, the screen printing layer frame blocks the bubbles and white edges that may appear during the attachment process, and further can block the fog layer effect caused by the frosted film frame.

[0023] 2. The glue absorption layer frame is used to absorb the overflowing UV glue, preventing the UV glue from entering the mobile phone through the gaps at the mobile phone keys and damaging the mobile phone. At the same time, the sealing layer frame is used to seal the lower side of the curved structure of the curved tempered glass layer to further prevent the UV glue from overflowing.

[0024] The additional aspects and advantages of the present utility model will be partially given in the following description, partially will become obvious from the following description, or be understood through the practice of the present utility model. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] In order to more clearly illustrate the technical solutions in the embodiments of the present utility model or the prior art, the following will briefly introduce the drawings required for use in the description of the embodiments or the prior art. Obviously, the following drawings are only some embodiments of the present utility model. For those of ordinary skill in the art, without creative efforts, other drawings can be obtained based on these drawings.

[0026] Figure 1 is the structural schematic diagram of the present utility model;

[0027] Figure 2 is the exploded structural schematic diagram of the present utility model;

[0028] Figure 3 is the partial cross-sectional structural schematic diagram of the installation of the present utility model;

[0029] The corresponding reference numerals in the drawings are explained as follows:

[0030] 1. Curved tempered glass layer; 2. Lens hole; 3. Release film layer; 4. Frosted film border; 5. Adhesive layer; 6. Screen printing layer border; 7. Adhesive layer border; 8. Sealing layer border; 9. Anti-fingerprint coating. Detailed implementation manners

[0031] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0032] Please refer to Figures 1-3 , a curved screen tempered film with high adhesion strength, including a curved tempered glass layer 1. The edge of the curved tempered glass layer 1 has a curved edge structure. A release film layer 3 is provided on the lower side of the curved tempered glass layer 1, and a lens hole 2 is provided on the curved tempered glass layer 1.

[0033] In the embodiment of the present invention, a frosted film border 4 is disposed around the edge of the lower side of the curved tempered glass layer 1, and an adhesive layer 5 is provided between the frosted film border 4 and the curved tempered glass layer 1;

[0034] Among them, both the frosted film border 4 and the adhesive layer 5 are correspondingly disposed on the inner wall of the curved edge structure.

[0035] Specifically, when the curved screen tempered film is attached, first use an alcohol cotton, a cleaning cloth and a dust removal sticker in sequence to keep the mobile phone screen clean. Then, drop an appropriate amount of UV glue in the middle of the screen. Then, tear off the release film layer 3 on the lower side of the curved tempered glass layer 1, and slowly lower it while aligning with the screen, so that the lower side of the curved tempered glass layer 1 adheres to the screen. At this time, the UV glue slowly melts in the curved tempered glass layer 1 and finally spreads to the curved structure area of the curved tempered glass layer 1. At this time, the frosted film border 4 is used to increase the surface area of contact between the UV glue and the edge area of the curved structure, which helps the UV glue to adhere to the curved tempered film better after being cured by ultraviolet rays, ensuring that the curved tempered film is more firmly installed after installation, improving the adhesion strength of the curved tempered film, and improving the situation where the curved tempered film falls off due to the decrease in viscosity.

[0036] Preferably, both sides of the frosted film border 4 are frosted.

[0037] Specifically, through this setting, the frosted film border 4 can not only increase the adhesion strength between the curved tempered film and the mobile phone screen, but also the frosted film border 4 itself can adhere more firmly to the adhesive layer 5, so that it can firmly adhere to the curved tempered glass layer 1.

[0038] Preferably, the adhesive layer 5 is made of AB glue material.

[0039] Specifically, the AB glue can provide very strong bonding strength, further increasing the bonding strength between the frosted film frame 4 and the curved tempered glass layer 1.

[0040] Preferably, a silk screen layer frame 6 is provided at the edge of the outer surface of the curved tempered glass layer 1.

[0041] Specifically, the silk screen layer frame 6 is a colored layer, which can block the bubbles and white edges that may appear during the pasting process. Furthermore, the silk screen layer frame 6 can also block the fog layer effect caused by the frosted film frame 4.

[0042] In the embodiment of the present invention, an adhesive-absorbing layer frame 7 is provided on the lower side of the curved tempered glass layer 1, and a sealing layer frame 8 is also provided on the lower side of the curved tempered glass layer 1. The sealing layer frame 8 is located outside the adhesive-absorbing layer frame 7;

[0043] Among them, the bottoms of the adhesive-absorbing layer frame 7 and the sealing layer frame 8 are flush.

[0044] Preferably, the adhesive-absorbing layer frame 7 is made of SAP material.

[0045] Preferably, the sealing layer frame 8 is made of silica gel material.

[0046] Specifically, when the curved tempered glass layer 1 is placed downwards and the overflowing glue appears during the melting process of the UV glue inside, the overflowing UV glue flows from the curved structure of the curved tempered glass layer 1 to the bottom and then to the outside. During this process, the adhesive-absorbing layer frame 7 made of SAP material will absorb the overflowing UV glue, preventing the UV glue from entering the mobile phone through the gaps at the mobile phone keys and damaging the mobile phone. At the same time, the sealing layer frame 8 made of silica gel material is used to seal the lower side of the curved structure of the curved tempered glass layer 1, further preventing the UV glue from overflowing. After ultraviolet curing, the UV glue absorbed by the adhesive-absorbing layer frame 7 cures, and the curing of the UV glue on the outer surface of the adhesive-absorbing layer frame 7 also makes the adhesive-absorbing layer frame 7 adhere and fix on the surface of the mobile phone screen.

[0047] At the same time, the sealing layer frame 8 can also prevent external dust from entering the curved tempered glass layer 1.

[0048] Furthermore, an anti-fingerprint coating 9 is coated on the upper side of the curved tempered glass layer 1.

[0049] Specifically, the anti-fingerprint coating 9 can prevent the curved tempered glass layer 1 from leaving fingerprints of users.

[0050] For those skilled in the art, it is obvious that the present utility model is not limited to the details of the above exemplary embodiments, and the present utility model can be implemented in other specific forms without departing from the spirit or basic characteristics of the present utility model. Therefore, from any point of view, the embodiments should be regarded as exemplary and non-limiting. The scope of the present utility model is defined by the appended claims rather than the above description. Therefore, all changes falling within the meaning and scope of the equivalent elements of the claims are intended to be embraced within the present utility model. Any reference signs in the claims should not be construed as limiting the claims involved.

Claims

1. A curved screen tempered film with high bonding strength, characterized in that: It comprises a curved tempered glass layer (1), the edge of the curved tempered glass layer (1) presents a curved edge structure, a release film layer (3) is provided on the lower side of the curved tempered glass layer (1), and a lens hole (2) is provided on the curved tempered glass layer (1); A frosted film frame (4) is arranged around the edge of the lower side of the curved tempered glass layer (1), and an adhesive layer (5) is arranged between the frosted film frame (4) and the curved tempered glass layer (1); Wherein, the frosted film frame (4) and the adhesive layer (5) are both correspondingly arranged on the inner wall of the curved edge structure.

2. The high-adhesion-strength curved screen tempered film according to claim 1, characterized in that: The frosted film frame (4) is frosted on both sides.

3. The high-adhesion-strength curved screen tempered film according to claim 2, characterized in that: The adhesive layer (5) is made of AB glue material.

4. The high-adhesion-strength curved screen tempered film according to any one of claims 1 to 3, characterized in that: The edge of the outer surface of the curved tempered glass layer (1) is provided with a silk-screen layer frame (6).

5. The high-adhesion-strength curved screen tempered film according to claim 1, characterized in that: The lower side of the curved tempered glass layer (1) is provided with a glue absorbing layer frame (7).

6. The high-adhesion-strength curved screen tempered film according to claim 5, characterized in that: The lower side of the curved tempered glass layer (1) is also provided with a sealing layer frame (8), and the sealing layer frame (8) is located outside the glue absorbing layer frame (7); The glue absorbing layer frame (7) and the sealing layer frame (8) are flush with the ground.

7. The high-adhesion-strength curved screen tempered film according to claim 6, characterized in that: The adhesive absorbing layer frame (7) is made of SAP material.

8. The high-adhesion-strength curved screen tempered film according to claim 7, characterized in that: The sealing layer frame (8) is made of silicone material.

9. The high-adhesion-strength curved screen tempered film according to claim 1, characterized in that: The upper side of the curved tempered glass layer (1) is coated with an anti-fingerprint coating (9).

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