CN212924879U

CN212924879U - Curved surface cell-phone protection film with subtract anti-function

Info

Publication number: CN212924879U
Application number: CN202021142446.5U
Authority: CN
Inventors: 陈业昌; 李辉; 钟维刚; 庄缵生; 白玉霞
Original assignee: Dongguan Chaozhi New Material Co ltd
Current assignee: Dongguan Chaozhi New Material Co ltd
Priority date: 2020-06-18
Filing date: 2020-06-18
Publication date: 2021-04-09
Anticipated expiration: 2030-06-18

Abstract

The utility model discloses a curved surface cell-phone protection film with subtract anti-function, including the substrate layer, the substrate layer has upper surface and lower surface, the upper surface is equipped with sclerosis layer and acrylic glue system protection film in proper order, the sclerosis layer is UV photocuring layer, the surface on sclerosis layer has moth's eye and subtracts anti-structure layer, the lower surface is equipped with dual cure glue film, silica gel layer in proper order and leaves the type layer, dual cure glue film is the elder generation thermocuring and then photocuring makes, just the thickness on sclerosis layer is less than the thickness on dual cure glue film. The curved surface cell-phone protection film with subtract anti-function of this application is good with the curved surface screen laminating nature of curved surface cell-phone, the white limit phenomenon can not appear, and the cambered surface edge is difficult for appearing the warpage, and preparation simple process, and the processing degree of difficulty is low, can reduce the processing cost, and has subtract anti-function, can realize the high transmissivity of curved surface cell-phone protection film, improves the definition, and avoids the injury of reflection of light to the vision.

Description

Curved surface cell-phone protection film with subtract anti-function

Technical Field

The utility model relates to a curved surface cell-phone protection film technical field, more specifically relate to a curved surface cell-phone protection film with subtract anti-function.

Background

Along with the popularization of smart phones, the demand of mobile phone films is increased, the plastic mobile phone films which are produced at first are gradually eliminated by the market due to various defects of performance, and the toughened glass films can completely cover the original screen surface, so that the original screen surface is prevented from being damaged and scratched by external force, the impact absorbability is further increased, the video effect of the screen cannot be influenced, the occupation amount of the protective films in the mobile phone film market is larger and larger, but the protective films are used for 3D curved surface mobile phone protective films, and on one hand, the difficulty in glass hot bending forming is large, and the reject ratio is high; on the other hand, the glass material has an influence on unlocking of the finger print under the screen.

Nowadays, the body edge and the screen of many mobile phones are designed into an arc shape to form a curved mobile phone, and the requirement for a curved mobile phone protective film is more and more strict. At present, a protective film is generally formed by hot bending and forming after an AB adhesive is attached to a PET film while the PET film is hardened, but the protective film has poor adhesion with a screen, the edge of a cambered surface is easy to warp and generate a white edge, and the problem of warping is easy to occur particularly in some environments with high temperature and high humidity. Chinese patent CN209940890 discloses a 3D protective film, which comprises a film coating layer, a UV hardened layer, a heating-UV dual-curing adhesive layer, a PET layer, a silica gel layer and a peeling layer, which are sequentially stacked from top to bottom. However, the processing difficulty is high due to the direct combination of the UV hardening layer and the heating-UV dual-curing adhesive layer, so that the preparation efficiency is low, the production cost is high, and the process is complex.

In addition, light propagating at the interface of two media is reflected and refracted simultaneously. From an energy perspective, for any transparent medium, the energy of the light does not pass through the interface completely, but is always reflected back from the interface in part. For example, at normal incidence at the interface of air to the PET substrate, the reflected light energy is about 6% of the incident light energy. The reflected light can also produce harmful stray light in the display process, and the definition of the image is influenced. When the mobile phone is used as a mobile phone with eyes staring at for a long time, the light reflection causes discomfort of a user, and particularly under sunlight, the mobile phone has great harm to vision.

Therefore, it is necessary to provide a curved protective film for mobile phone with anti-reflection function to solve the above-mentioned deficiencies of the prior art.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a curved surface cell-phone protection film with subtract anti-function, it is good with the curved surface screen laminating nature of curved surface cell-phone, and the cambered surface edge is difficult for appearing warpage and play white limit, and preparation simple process, the processing degree of difficulty is low, reduces the processing cost, has simultaneously and subtracts anti-function, realizes the high transmissivity of curved surface cell-phone protection film, improves the definition, and avoids the injury of reflection of light to the vision.

In order to realize above-mentioned purpose, the utility model discloses a curved surface cell-phone protection film with subtract anti-function, including the substrate layer, the substrate layer has upper surface and lower surface, the upper surface is equipped with sclerosis layer and acrylic glue system protection film in proper order, the sclerosis layer is UV photocuring layer, the surface on sclerosis layer has moth's eye and subtracts anti-structural layer, the lower surface is equipped with dual cure glue film, silica gel layer in proper order and leaves the type layer, dual cure glue film is that the thermosetting surface is done and follow-up photocuring design is made earlier, in dual cure glue film with be equipped with OCA optics glue film and PET optics rete under to in proper order on the follow-up between the silica gel layer.

Compared with the prior art, the curved-surface mobile phone protective film with the anti-reflection function has the advantages that when the curved-surface mobile phone protective film is not needed to be used, the acrylic glue protective film is used for protection, and dust is prevented from polluting a hardening layer; when in use, the acrylic adhesive protective film is torn, and the hardened layer provides better wear resistance and anti-fouling performance; the moth-eye antireflection structure layer on the surface of the hardening layer is used for realizing the antireflection function, realizing the high transmissivity of the curved mobile phone protective film, improving the definition and avoiding the damage of reflection to vision; due to the introduction of the dual-curing adhesive layer, the edges of the cambered surface can be effectively prevented from warping and forming white edges; be equipped with the substrate layer between sclerosis layer and two solidification glue films, great reduction processing degree of difficulty. After tearing the release layer, with the help of silica gel layer and curved surface screen laminating, the air discharge is good, and the laminating is level and smooth. Therefore, the curved-surface mobile phone protective film with the reflection reducing function can be well attached to a curved-surface screen of a curved-surface mobile phone, the edge of the arc surface is not prone to warping and whitening, the preparation process is simple, the processing difficulty is low, the processing cost is reduced, the reflection reducing function is achieved, the high transmittance of the curved-surface mobile phone protective film can be achieved, the definition is improved, and the damage of reflection to vision is avoided.

Preferably, the thickness of the hardened layer is smaller than that of the dual-curing adhesive layer.

Preferably, the thickness of the PET optical film layer is 10-50 μm.

Preferably, the thickness of the OCA optical adhesive layer is 50-120 μm.

Preferably, a plurality of cone-shaped structures are arranged on the surface array of the hardening layer to form the moth-eye antireflection structure layer.

Preferably, the thickness of the substrate layer is 20-100 μm.

Preferably, the thickness of the hardened layer is 3 to 7 μm.

Preferably, the dual-curing glue layer is made of aliphatic polyurethane acrylate.

Drawings

Fig. 1 is a schematic structural view of the curved surface mobile phone protective film with the anti-reflection function of the present invention.

Fig. 2 is a schematic structural view of the curved surface mobile phone protection film with anti-reflection function shown in fig. 1, in which an acrylic adhesive protection film is hidden.

Fig. 3 is a top view of the curved phone protective film with anti-reflection function shown in fig. 2.

Description of the symbols:

the curved-surface mobile phone protection film with the antireflection function comprises a curved-surface mobile phone protection film 100 with the antireflection function, a base material layer 10, a hardening layer 20, a moth-eye antireflection structure layer 21, a conical structure 211, an acrylic adhesive protection film 30, a dual-curing adhesive layer 40, a silica gel layer 50, a release layer 60, an OCA (optical clear adhesive) layer 70 and a PET (polyethylene terephthalate) optical film layer 80.

Detailed Description

In order to explain technical contents, structural features, and objects and effects of the present invention in detail, the following description is given in conjunction with the embodiments and the accompanying drawings.

Referring to fig. 1, the curved mobile phone protective film 100 with anti-reflection function of the present application includes a substrate layer 10, the substrate layer 10 has an upper surface and a lower surface, the upper surface of the substrate layer 10 is sequentially provided with a hardened layer 20 and an acrylic adhesive protective film 30, the surface of the hardened layer 20 is provided with a moth-eye anti-reflection structure layer 21, the lower surface of the substrate layer 10 is sequentially provided with a dual-curing adhesive layer 40, a silica gel layer 50 and a release layer 60, the dual-curing adhesive layer 40 is formed by thermal curing, surface drying, and then light curing and shaping, and the thickness of the hardened layer 20 is smaller than that of the dual-curing adhesive layer 40. It is understood that a heat-curable and light-curable material is coated on the upper surface of the base material layer 10, and a heat curing process and a light curing process are performed to form the hardened layer 20. Preferably, the hardened layer 20 is made using a photo-curing process, i.e., the hardened layer 20 is a UV photo-cured layer. An acryl glue-based protective film 30 is provided on an upper surface of the hardened layer 20 to protect the hardened layer 20, and it should be understood that the acryl glue-based protective film 30 is a protective film with acryl glue. The lower surface of the substrate layer 10 is coated with a material which can be firstly thermally cured and then photo-cured, and the dual-curing adhesive layer 40 is obtained by firstly performing a thermal curing process and surface drying and then performing a photo-curing process for shaping. And coating a silica gel material on the other side of the double-curing adhesive layer 40 to form a silica gel layer 50, and then attaching a release layer 60. The thickness of the hardened layer 20 is 3-7 μm, for example, the thickness of the hardened layer 20 can be, but is not limited to, 3 μm, 4 μm, 5 μm, 6 μm, 7 μm. Since the dual cure adhesive layer 40 serves as a main support layer, the thickness of the hardened layer 20 is smaller than that of the dual cure adhesive layer 40. The thickness of the dual cured glue layer 40 is 30-80 μm, such as the thickness of the dual cured glue layer 40 can be, but is not limited to, 30 μm, 40 μm, 50 μm, 60 μm, 70 μm, 80 μm. In a preferred embodiment, the dual-cure adhesive layer 40 is made of aliphatic urethane acrylate through thermal curing and surface drying, and then through photo-curing and shaping. The thickness of the silicone gel layer 50 is 20-70 μm, for example, the thickness of the silicone gel layer 50 may be, but is not limited to, 20 μm, 30 μm, 40 μm, 50 μm, 60 μm, 70 μm.

Referring to fig. 2, a plurality of cone-shaped structures 211 are arranged on the surface of the hardening layer 20 in an array to form a moth-eye structure layer 21, and the moth-eye structure layer 21 can effectively suppress the loss of reflected light in the visible light spectrum range by using the principle of bionics. In this embodiment, the plurality of cones arranged in an array are laid on the surface of the hardened layer to form the moth-eye antireflection structure layer 21, and the process is simple and has high adaptability.

Referring to fig. 1, an OCA optical adhesive layer 70 and a PET optical film layer 80 are sequentially disposed between the dual curing adhesive layer 40 and the silicone layer 50 from top to bottom. Because the tackiness on silica gel layer 50 is lower, silica gel layer 50 is used for with the laminating of curved surface screen simultaneously, should not too thick, adopts less time probably to lead to silica gel layer 50 and dual cure glue film 40 cohesion relatively poor, leads to droing. OCA optical adhesive layer 70's gluey stickness is stronger than silica gel layer 50, adopts OCA optical adhesive layer 70 and the combination of two solidification glue films 40, and two solidification glue films 40 combine with the help of PET optical film layer 80 and silica gel layer 50, avoids the emergence of above-mentioned condition, and can promote the discharge of air, improves the stability of silica gel layer 50 and curved surface screen laminating. Further, the thickness of the OCA optical adhesive layer 70 is 50-120 μm. For example, the thickness of OCA optical glue layer 70 may be, but is not limited to, 50 μm, 60 μm, 70 μm, 80 μm, 90 μm, 100 μm, 110 μm, 120 μm. The thickness of the PET optical film layer 80 is 10-50 μm. For example, the thickness of the PET optical film layer 80 may be, but is not limited to, 10 μm, 20 μm, 30 μm, 40 μm, 50 μm.

With continued reference to fig. 1, the substrate layer 10 is selected from any one of a PET film layer, a TAC film layer, and an SRF film layer. In one embodiment, the substrate layer 10 is selected from PET film layers, and preferably PET film layers with high transparency. In another embodiment, the substrate layer 10 is selected from a TAC (triacetyl cellulose) film layer or an SRF film layer, which can effectively improve the identification of fingerprints under the screen. In addition, the TAC film layer or the SRF film layer is used as the substrate layer 10, when the PET optical film layer 80 can be matched, the UV forming processing is easy, the rebound is avoided, and the laminating performance with a curved screen is good. Further, the thickness of the substrate layer 10 is 20-100 μm, for example, the thickness of the substrate layer 10 may be, but is not limited to, 20 μm, 30 μm, 40 μm, 50 μm, 60 μm, 70 μm, 80 μm, 90 μm, 100 μm.

Compared with the prior art, the curved-surface mobile phone protective film 100 with the anti-reflection function has the advantages that when the curved-surface mobile phone protective film 100 is not needed to be used, the acrylic adhesive protective film 30 is used for protection, and dust is prevented from polluting the hardened layer 20; when in use, the acrylic adhesive protective film 30 is torn, and the hardening layer 20 provides better wear resistance and anti-fouling performance; the moth eye antireflection structure layer 21 on the surface of the hardening layer 20 is used for realizing an antireflection function, so that the high transmissivity of the curved mobile phone protective film is realized, the definition is improved, and the damage of reflection to vision is avoided; due to the introduction of the double-curing glue layer 40, the edges of the cambered surface can be effectively prevented from warping and forming white edges; be equipped with substrate layer 10 between sclerosis layer 20 and two solidification glue films 40, great reduction processing degree of difficulty. After the release layer 60 is torn, the silica gel layer 50 is attached to the curved screen, so that the air exhaust performance is good, and the attachment is smooth. Therefore, the curved-surface mobile phone protective film 100 with the reflection reducing function can be well attached to a curved-surface screen of a curved-surface mobile phone, the edge of the curved surface is not prone to warping and whitening, the preparation process is simple, the processing difficulty is low, the processing cost is reduced, the reflection reducing function is achieved, the high transmittance of the curved-surface mobile phone protective film can be achieved, the definition is improved, and the damage of reflection to vision is avoided.

The above disclosure is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the scope of the invention, therefore, the invention is not limited thereto.

Claims

1. The utility model provides a curved surface cell-phone protection film with subtract anti-function, a serial communication port, including the substrate layer, the substrate layer has upper surface and lower surface, the upper surface is equipped with sclerosis layer and acrylic glue in proper order and is the protection film, the sclerosis layer is UV photocuring layer, the surface on sclerosis layer is equipped with moth's eye and subtracts anti-structure layer, the lower surface is equipped with dual cure glue film, silica gel layer in proper order and leaves the type layer, dual cure glue film is that the thermosetting table is dry and follow-up photocuring design again makes, in dual cure glue film with from last to being equipped with OCA optics glue film layer and PET optics film layer down in proper order between the silica gel layer.

2. The curved handset protection film with the antireflection function as claimed in claim 1, wherein the hardened layer has a thickness smaller than that of the dual cured adhesive layer.

3. The curved handset protective film with the antireflection function as claimed in claim 1, wherein the thickness of the PET optical film layer is 10 to 50 μm.

4. The curved handset protective film with antireflection function according to claim 1, wherein the thickness of the OCA optical adhesive layer is 50 to 120 μm.

5. The curved handset protection film with anti-reflection function as claimed in claim 1, wherein a plurality of cone-shaped structures are arranged on the surface array of the hardening layer to form the moth-eye anti-reflection structure layer.

6. The curved handset protective film with antireflection function according to claim 1, wherein the thickness of the base material layer is 20 to 100 μm.

7. The curved handset protective film with antireflection function according to claim 1, wherein the thickness of the hardened layer is 3 to 7 μm.

8. The curved surface mobile phone protective film with the anti-reflection function as claimed in claim 1, wherein the dual cured adhesive layer is made of aliphatic urethane acrylate.