Tempered film capable of improving impact resistance of edge

Abstract

The utility model relates to the technical field of tempered films, in particular to a tempered film capable of improving edge impact resistance, which comprises a transparent base layer, a hard layer arranged on the upper end face of the transparent base layer and a first adhesive layer arranged on the lower end face of the transparent base layer. The hard layer comprises a tempered glass main body and a transparent ceramic frame coating the periphery of the tempered glass main body, and the transparent ceramic frame is flush with the joint of the tempered glass main body; the periphery of the tempered glass body is coated with the transparent ceramic frame, the transparent ceramic frame has high hardness and strength, after the edge of the tempered film is coated with the transparent ceramic frame, the resistance of the edge part to external impact can be effectively enhanced, when a mobile phone falls off accidentally or is collided, the frame can absorb and disperse the impact force, and the service life of the mobile phone is prolonged. And the risk that the edge is broken due to direct stress is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of tempered films, in particular to a tempered film with improved edge impact resistance. Background Art

[0002] Screen protectors play a crucial role in the current mobile phone accessories market, with tempered glass being the most common type. However, their practical application presents several challenges. While tempered glass, with its high hardness and excellent compressive strength, excels in protecting phone screens from scratches and certain external impacts, its edges present a vulnerability. Internal stress builds up during the manufacturing process, concentrating at these edges. These edges are typically sharp, relatively thin where they meet the screen, and the material is relatively brittle. When a phone is struck or dropped, the ground often makes contact near the edges, making them particularly susceptible to significant impact and breakage. To address this issue, some manufacturers have experimented with adding borders to the edges of tempered glass. While this approach enhances the strength of these edges, it also introduces a new problem: the border inevitably obscures the screen edge, impacting the user's viewing and operational experience. This obstruction is particularly pronounced with the increasing popularity of full-screen phones. Therefore, a new technical solution is necessary to address these issues. Utility Model Content

[0003] In order to overcome the above-mentioned shortcomings, the present invention aims to provide a technical solution that can solve the above-mentioned problems.

[0004] A tempered film for improving edge impact resistance includes a transparent base layer, a hard layer arranged on the upper end surface of the transparent base layer, and a first adhesive layer arranged on the lower end surface of the transparent base layer. The hard layer includes a tempered glass body and a transparent ceramic frame coated around the tempered glass body, and the junction between the transparent ceramic frame and the tempered glass body is flush.

[0005] Preferably, the transparent ceramic frame is made of nano-scale ceramic material.

[0006] Preferably, the transparent base layer includes a second adhesive layer attached to the lower end of the hard layer and an anti-blue light layer attached to the lower end of the second adhesive layer, and the first adhesive layer is attached to the lower end of the anti-blue light layer.

[0007] Preferably, the first adhesive layer and the second adhesive layer are both made of OCA material, and a release film layer is further attached to the lower end of the first adhesive layer.

[0008] Preferably, an anti-fingerprint coating is further coated on the hard layer.

[0009] Preferably, the total thickness of the tempered film is 0.15mm-0.3mm, and the thickness of the hard layer is 0.1mm-0.2mm.

[0010] Preferably, a listening hole is formed at the front end of the transparent ceramic frame, and the transparent base layer and the first adhesive layer are arranged to avoid air at the position corresponding to the listening hole, and the lower end of the listening hole is filled with dust-proof cotton through the air-avoiding arrangement of the transparent base layer and the first adhesive layer.

[0011] Compared with the prior art, the beneficial effects of the present invention are:

[0012] By coating the tempered glass with a transparent ceramic frame, which offers high hardness and strength, the edge of the tempered film effectively enhances its resistance to external impact. When the phone is accidentally dropped or hit, the frame absorbs and disperses the impact, reducing the risk of breakage from direct force. Furthermore, tempered film itself generates internal stress during the manufacturing process, and stress concentration often occurs along the edges. The addition of a transparent ceramic frame improves this stress distribution, distributing it more evenly throughout the film and frame structure, thereby reducing the likelihood of edge cracking due to stress concentration.

[0013] The transparent ceramic frame has higher wear resistance than ordinary plastic or metal frames. In daily use, mobile phones are often placed together with keys, coins and other items. These items may cause scratches on the edge of the tempered film. The transparent ceramic frame can effectively resist these scratches, protect the edge of the tempered film from wear and tear, and extend its service life.

[0014] The junction of the transparent ceramic frame and the tempered glass body can be made very smooth, without any obvious sense of steps, so that when your fingers touch the edge of the screen, you will not feel abrupt or uncomfortable, providing a smoother touch experience.

[0015] Additional aspects and advantages of the present invention will be given in part in the following description and will become apparent from the following description or learned through practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative labor.

[0017] Figure 1 It is a schematic diagram of the explosion structure of the utility model;

[0018] Figure 2 It is a schematic diagram of the partial cross-section structure of the utility model.

[0019] The reference numerals and names in the figures are as follows:

[0020] Transparent base layer 10, second adhesive layer 11, anti-blue light layer 12, hard layer 20, tempered glass body 21, transparent ceramic frame 22, first adhesive layer 30, release film layer 31, anti-fingerprint coating 40, listening hole part 50, dust-proof cotton 51. DETAILED DESCRIPTION

[0021] The following is a clear and complete description of the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only a part of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0022] Please refer to Figure 1-2In this embodiment, a tempered film with improved edge impact resistance is proposed, including a transparent base layer 10, a hard layer 20 arranged on the upper end surface of the transparent base layer 10, and a first adhesive layer 30 arranged on the lower end surface of the transparent base layer 10. The first adhesive layer 30 is used to attach the tempered film to the mobile phone screen. The hard layer 20 includes a tempered glass body 21 and a transparent ceramic frame 22 coated around the tempered glass body 21. The total thickness of the tempered film is 0.15mm-0.3mm, and the thickness of the hard layer 20 is 0.1mm-0.2mm. The thinner tempered film can provide better touch sensitivity and fit, making the mobile phone feel more natural and smooth during use. By coating a transparent ceramic frame 22 around the tempered glass body 21, the transparent ceramic frame 22 has high hardness and strength. After the transparent ceramic frame 22 is coated on the edge of the tempered film, the edge part can effectively enhance its resistance to external impact. When the mobile phone accidentally falls or is hit, the frame can absorb and disperse the impact force, reducing the risk of the edge being directly subjected to force and breaking. In addition, the tempered film itself will have internal stress during the manufacturing process, and the edges are often areas where stress is concentrated. The addition of the transparent ceramic frame 22 can improve this stress distribution, making the stress more evenly dispersed throughout the film and frame structure, thereby reducing the possibility of the edge breaking due to stress concentration. In addition, the transparent ceramic frame 22 has high wear resistance, which is higher than that of ordinary plastic or metal frames. In daily use, mobile phones are often placed together with items such as keys and coins. These items may cause scratches on the edges of the tempered film, and the transparent ceramic frame 22 can effectively resist these scratches, protect the edges of the tempered film from wear, and extend its service life. The junction of the transparent ceramic frame 22 and the tempered glass body 21 is flush, that is, the junction of the transparent ceramic frame 22 and the tempered glass body 21 can be very smooth without an obvious sense of step, so that when the finger touches the edge of the screen, it will not feel abrupt or uncomfortable, providing a smoother touch experience.

[0023] In this embodiment, it is further proposed that the transparent ceramic frame 22 is made of nano-scale ceramic material. Nano-scale ceramic material has extremely high strength and can withstand greater impact force than traditional ceramic materials. When setting the transparent ceramic frame 22, it is preferably mixed with UV glue, and then coated around the tempered glass body 21 through a dispensing process, and then cured by UV lamp irradiation. This can ensure the precise size of the frame and a closer fit with the tempered glass body 21 and the mobile phone screen.

[0024] Please refer to Figure 1-2This embodiment further proposes that the transparent base layer 10 includes a second adhesive layer 11 attached to the lower end of the hard layer 20 and an anti-blue light layer 12 attached to the lower end of the second adhesive layer 11. The first adhesive layer 30 is attached to the lower end of the anti-blue light layer 12. The anti-blue light function of the transparent base layer 10 provided by the anti-blue light layer 12 can filter out harmful blue light emitted by the mobile phone screen, reducing blue light irritation and damage to the eyes. Both the first adhesive layer 30 and the second adhesive layer 11 are made of OCA material, and a release film layer 31 is attached to the lower end of the first adhesive layer 30. The OCA material has excellent adhesion and extremely high transparency, which can achieve adhesion and provide a visual experience that is almost the same as when the film is not applied. In addition, an anti-fingerprint coating 40 is coated on the hard layer 20, which can effectively reduce the adhesion of fingerprints on the mobile phone screen.

[0025] Please refer to Figure 1-2 In this embodiment, it is further proposed that a listening hole portion 50 is formed at the front end of the transparent ceramic frame 22. The transparent base layer 10 and the first adhesive layer 30 are arranged to avoid airflow at the position corresponding to the listening hole portion 50, and the lower end of the listening hole portion 50 is filled with dust-proof cotton 51 due to the airflow avoidance arrangement of the transparent base layer 10 and the first adhesive layer 30. The setting of the listening hole portion 50 ensures that the sound emitted by the mobile phone speaker can be transmitted smoothly and will not be blocked by the tempered film or the frame. The listening hole of the mobile phone is a place where dust easily accumulates. Once dust enters the listening hole, it may affect the performance of the speaker and even cause damage. The dust-proof cotton 51 filled at the lower end of the listening hole portion 50 can effectively prevent dust from entering the listening hole and keep the listening hole clean. In addition, the integrated molding design of the listening hole portion 50 and the transparent ceramic frame 22, as well as the airflow avoidance arrangement and the filling of the dust-proof cotton 51, reflect the meticulous treatment of product details, making the mobile phone tempered film more beautiful and exquisite in appearance.

[0026] It will be apparent to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the present invention can be implemented in other specific forms without departing from the spirit or essential features of the present invention. Therefore, the embodiments should be considered in all respects as illustrative and non-restrictive, and the scope of the present invention is defined by the appended claims rather than the foregoing description, and it is intended that all variations that come within the meaning and range of equivalents of the claims be embraced within the present invention.

Claims

1. A tempered film with improved edge impact resistance, characterized in that: The invention comprises a transparent base layer (10), a hard layer (20) arranged on the upper end surface of the transparent base layer (10), and a first adhesive layer (30) arranged on the lower end surface of the transparent base layer (10), wherein the hard layer (20) comprises a tempered glass body (21) and a transparent ceramic frame (22) coated around the tempered glass body (21), and the junction between the transparent ceramic frame (22) and the tempered glass body (21) is flush.

2. The tempered film with improved edge impact resistance according to claim 1, characterized in that: The transparent ceramic frame (22) is made of nano-scale ceramic material.

3. The tempered film with improved edge impact resistance according to claim 1, characterized in that: The transparent base layer (10) comprises a second adhesive layer (11) attached to the lower end of the hard layer (20) and an anti-blue light layer (12) attached to the lower end of the second adhesive layer (11); and the first adhesive layer (30) is attached to the lower end of the anti-blue light layer (12).

4. The tempered film with improved edge impact resistance according to claim 3, characterized in that: The first adhesive layer (30) and the second adhesive layer (11) are both made of OCA material, and a release film layer (31) is also attached to the lower end of the first adhesive layer (30).

5. The tempered film with improved edge impact resistance according to claim 1, characterized in that: An anti-fingerprint coating (40) is also coated on the hard layer (20).

6. The tempered film with improved edge impact resistance according to claim 1, characterized in that: The total thickness of the tempered film is 0.15 mm to 0.3 mm, and the thickness of the hard layer (20) is 0.1 mm to 0.2 mm.

7. The tempered film with improved edge impact resistance according to claim 1, characterized in that: A listening hole portion (50) is also formed at the front end of the transparent ceramic frame (22), and the transparent base layer (10) and the first adhesive layer (30) are arranged to avoid air at the position corresponding to the listening hole portion (50), and the lower end of the listening hole portion (50) is filled with dust-proof cotton (51) through the air-avoiding arrangement of the transparent base layer (10) and the first adhesive layer (30).

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