CN213232097U - Semi-cured screen protection film - Google Patents
Semi-cured screen protection film Download PDFInfo
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- CN213232097U CN213232097U CN202021470800.7U CN202021470800U CN213232097U CN 213232097 U CN213232097 U CN 213232097U CN 202021470800 U CN202021470800 U CN 202021470800U CN 213232097 U CN213232097 U CN 213232097U
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Abstract
The utility model relates to a cell-phone protection pastes the field, especially relates to a semi-solid type screen protection film, is suitable for attached curved surface screen, include: a substrate layer configured as a screen protective film body; the semi-cured OCA layer is positioned below the base material layer and can be formed into a cured OCA layer under the action of UV illumination after being attached to a screen; and an adhesive layer for adhering the screen, which is located below the semi-cured OCA layer. The curved screen can be well adapted to the curvature of the curved screen when being attached to the surface of the curved screen, and no warping is generated; after the laminating is finished, the shaping and curing are carried out through UV illumination, the curvature can be permanently ensured not to rebound and deform, and the nail mark resistance is excellent.
Description
Technical Field
The utility model relates to a cell-phone protection pastes the field, especially relates to a semi-solid type screen protection film, and it is attached on display screen, especially is suitable for attached on the curved surface screen.
Background
Nowadays, in order to increase the use comfort of many mobile phones, the screen is gradually converted from a flat screen to a curved screen. However, the curved screen is fragile in collision and needs to be protected by a screen protection film in use. In the prior art, the screen protection film is usually formed by compounding a base material layer, an OCA layer and an adhesion layer, and the OCA layer is already in a cured state when the protection film is attached to the surface of the curved screen, so that the flexibility of the screen protection film is poor and the screen protection film cannot be well attached to the curved screen.
Therefore, the applicant proposes for solving the problem in the prior art the technical scheme in the utility model.
SUMMERY OF THE UTILITY MODEL
The utility model aims to solve the technical problem that overcome prior art not enough, and provide a semi-solid type screen protection film.
In order to achieve the above purpose, the utility model adopts the following technical scheme:
a semi-cured screen protection film suitable for attaching a curved screen, comprising: a substrate layer configured as a screen protective film body; the semi-cured OCA layer is positioned below the base material layer and can be cured under the action of UV illumination after being attached to the screen, so that the protective film is formed into a shape matched with the screen; and an adhesive layer for adhering the screen, which is located below the semi-cured OCA layer.
Furthermore, the semi-cured OCA layer is attached to the lower surface of the base material layer, and the thickness of the semi-cured OCA layer is 12-50 μm.
Further, the adhesion layer is attached to the lower surface of the semi-cured OCA layer, and the thickness of the adhesion layer is 10-50 μm.
Further, the thickness of the substrate layer is 12-50 μm.
Furthermore, an isolation layer is attached to the lower surface of the semi-cured OCA layer, the adhesion layer is attached to the lower surface of the isolation layer, and the thickness of the semi-cured OCA layer is 20-100 microns.
Further, the isolation layer is a PET layer or a PC layer, and the thickness of the isolation layer is less than 25 μm.
Further, the substrate layer is a PET layer or a PC layer, and the thickness of the substrate layer is 12-50 μm.
Further, a release film is attached to the lower surface of the adhesive layer.
Furthermore, a hardening layer is attached to the upper surface of the base material layer, and the thickness of the hardening layer is 2-5 micrometers.
Further, a protective film is attached to the upper surface of the hardened layer.
Owing to adopted above technical scheme, the utility model discloses following beneficial effect has:
the utility model discloses a semi-curing type screen protection film, it is through adopting semi-cured OCA layer, the camber of adaptation curved surface screen that can be fine when the protection film is laminated on curved surface screen surface, can not produce and upwarp; after the laminating is finished, the shaping and curing are carried out through UV illumination, the curvature can be permanently ensured not to rebound and deform, and the nail mark resistance is excellent.
Drawings
In order to illustrate the technical solutions of the embodiments of the present invention more clearly, the drawings of the embodiments will be briefly described below, and it is obvious that the drawings in the following description only relate to some embodiments of the present invention, and are not intended to limit the present invention.
Fig. 1 is a schematic overall structure diagram of the first embodiment.
FIG. 2 is a flow chart of a manufacturing process according to a first embodiment;
FIG. 3 is a schematic diagram showing the overall structure of the fifth embodiment;
FIG. 4 is a flow chart of the fifth embodiment.
Reference numerals:
1. a protective film; 2. a hardened layer; 3. a substrate layer; 4. semi-curing the OCA layer; 5. an isolation layer; 6. an adhesive layer; 7. and (4) a release film.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the present invention will be described in further detail with reference to the accompanying drawings. The components of embodiments of the present invention, as generally described and illustrated in the figures herein, may be arranged and designed in a wide variety of different configurations. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, it need not be further defined and explained in subsequent figures.
Unless defined otherwise, technical or scientific terms used herein shall have the ordinary meaning as understood by those of ordinary skill in the art to which the invention belongs. The use of "first," "second," and similar terms in the description and in the claims does not indicate any order, quantity, or importance, but rather is used to distinguish one element from another. Also, the use of the terms "a," "an," or "the" and similar referents do not denote a limitation of quantity, but rather denote the presence of at least one. The word "comprise" or "comprises", and the like, means that the element or item listed before "comprises" or "comprising" covers the element or item listed after "comprising" or "comprises" and its equivalents, and does not exclude other elements or items. "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", and the like are used only to indicate relative positional relationships that may change when the absolute position of an object being described changes, and are merely for convenience in describing the invention and to simplify the description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore should not be construed as limiting the invention.
Some embodiments of the present invention will be described in detail below with reference to the accompanying drawings. Features in the embodiments described below may be combined with each other without conflict.
The first embodiment is as follows:
referring to fig. 1 and 2, the present invention provides a semi-cured screen protection film 1 suitable for a curved screen, including: a base material layer 3 configured as a main body of the screen protective film 1; the semi-cured OCA layer 4 is positioned below the base material layer 3 and can be cured under the action of UV illumination after being attached to a screen; and an adhesive layer 6 for adhering the screen, which is located below the semi-cured OCA layer 4.
It should be noted that the screen protection film 1 in the present embodiment can also be attached to a flat screen as in the screen protection film in the prior art, but is different from the screen protection film in the prior art, and the screen protection film of the present invention can be well adapted to a curved screen.
As shown in fig. 1, the semi-cured OCA layer 4 is attached between the lower surface of the substrate layer 3 and the upper surface of the adhesion layer 6 to connect the two, in this embodiment, the thickness of the semi-cured OCA layer 4 is 20 μm, the thickness of the substrate layer 3 is 50 μm, and the thickness of the adhesion layer 6 is 10 μm. It should be noted that the thickness of the semi-cured OCA layer of the present invention should be within a range, and if the thickness of the semi-cured OCA layer is too thin, the thickness will affect the connection strength between the substrate layer and the adhesion layer; if the thickness of the semi-cured OCA layer 4 is too thick, the screen image will be too greatly deviated from the initial position after being refracted, and dizziness will be caused after a long time use. In addition, the thickness of the substrate layer 3 should also be within a range, and an excessively thin layer will not bear other layers of the mobile phone protective film, and an excessively thick layer will reduce the flexibility of the screen protective film, so that the screen protective film cannot be well attached to the curved screen. In addition, the thickness of the adhesive layer 6 should also be within a range, which is too thin to attach the screen protection film to the screen well, and too thick to allow glue overflow during the attachment or glue residue when the screen protection film is torn off.
In this embodiment, the semi-cured OCA layer 4 is a semi-cured OCA adhesive, which is cured and shaped by UV light irradiation, so that the screen protection film is adapted to curved screens with different curvatures; be different from the mantle of laminating curved surface glass among the prior art, the screen protection film in this embodiment is the dura mater after UV light shines, can not leave the mar on the screen protection film when the fingernail streaks the screen. In addition, it should be noted that the semi-cured OCA adhesive manufacturing process is the prior art, can be directly purchased in the market, and is used as a combination of liquid OCA adhesive and solid OCA adhesive, and has the advantages of two bonding materials, so that the respective disadvantages are improved, namely the filling property of the liquid OCA adhesive is realized, and the problems of bubbles generated by the solid OCA bonding and later rebound are solved.
In this embodiment, the material of the base material layer 3 is PET, and the material of the adhesive layer 6 is silica gel. In other embodiments, the material of the substrate layer 3 may also be PC or PI, and the material of the adhesion layer 6 may also be PU glue or acryl glue.
As shown in fig. 1, the upper surface of the substrate layer 3 has a hardened layer 2, the hardened layer 2 is formed by surface treatment of the substrate layer 3, and the thickness of the hardened layer 2 is 2 μm in this embodiment. In other embodiments, the hardened layer 2 may be adhered to the upper surface of the substrate layer 3 by a hardened film, and in this embodiment, the film may be a PET film, a PC film, or a PI film. It should be noted that the thickness of the hardened layer should be in a range, and it is difficult for the too thin hardened layer 2 to meet the process requirements, so that the manufacturing cost is high, and the too thick hardened layer 2 will affect the flexibility of the mobile phone protective film, therefore, in other embodiments, the technician can select the thickness of the hardened layer 2 in the range of 2 μm to 5 μm.
In addition, it should be noted that the hardness of the hardened layer 2 should be greater than the mohs hardness 3, so as to prevent the fingernail from scratching the surface of the screen when the mobile phone is operated.
As shown in fig. 1, a release film 7 is attached to the lower surface of the adhesive layer 6, and in this embodiment, the release film 7 has a thickness of 50 μm to be attached to the lower surface of the adhesive layer 6 before the protective film 1 is attached to prevent the adhesive property of the adhesive layer 6 from being damaged and to prevent impurities from entering into the adhesive layer 6.
As shown in fig. 1, a protective film 1 is attached to the upper surface of the hardened layer 2, and the protective film 1 is a silicone protective film 1 with a thickness of 60 μm, so as to prevent the substrate layer 3 from being scratched due to the rubbing of foreign objects against the screen protective film 1 during transportation. In addition, the protective film 1 is preferably opaque to prevent the semi-cured OCA glue from changing into the cured OCA glue before the light irradiates the screen protective film 1 to be attached to the screen.
As shown in fig. 2, the screen protective film 1 in the present embodiment is manufactured;
the first process step: carrying out surface hardening treatment on the base material layer 3;
and a second step: coating an adhesive layer 6 on the upper surface of the release film 7;
and a third step of: coating a semi-cured OCA layer 4 on the lower surface of the substrate layer 3, and attaching the semi-cured OCA layer to an adhesion layer 6 in the semi-finished product in the second step;
step four: the protective film 1 is attached.
Example two:
the present embodiment is substantially the same as the first embodiment, except that in the present embodiment, the thickness of the semi-cured OCA layer 4 is 50 μm, the thickness of the substrate layer 3 is 25 μm, and the thickness of the adhesion layer 6 is 10 μm.
Example three:
the present embodiment is substantially the same as the first embodiment, except that in the present embodiment, the thickness of the semi-cured OCA layer 4 is 50 μm, the thickness of the substrate layer 3 is 25 μm, and the thickness of the adhesion layer 6 is 45 μm.
Example four:
the present embodiment is basically the same as the first embodiment, except that in the present embodiment, the thickness of the semi-cured OCA layer 4 is 25 μm, the thickness of the substrate layer 3 is 25 μm, and the thickness of the adhesion layer 6 is 45 μm.
Example five:
referring to fig. 3 and 4, in the present embodiment, an isolation layer 5 is attached to a lower surface of the semi-cured OCA layer 4, the adhesion layer 6 is attached to a lower surface of the isolation layer 5, and a thickness of the semi-cured OCA layer 4 is 100 μm. That is, the screen protection film 1 in the present embodiment is, from top to bottom, a protection film 1, a cured layer 2, a base material layer 3, a semi-cured OCA layer 4, an isolation layer 5, an adhesive layer 6, and a release film 7.
In this embodiment, the isolation layer 5 is made of PET, and has a thickness of 25 μm; the base material layer 3 is made of PET, and the thickness of the base material layer is 25 micrometers.
As shown in fig. 4, the screen protective film 1 in the present embodiment is manufactured;
the first process step: carrying out surface hardening treatment on the base material layer 3;
and a second step: coating an adhesive layer 6 on the lower surface of the isolation layer 5;
and a third step of: coating a semi-cured OCA layer 4 on the lower surface of the substrate layer 3, and attaching the semi-cured OCA layer to the isolation layer 5 in the semi-finished product in the second working procedure;
step four: the release film 7 and the protective film 1 are attached.
The above description is only for the specific embodiments of the present invention, but the protection scope of the present invention is not limited thereto, and any changes or substitutions that can be easily conceived by those skilled in the art within the technical scope of the present invention should be covered by the protection scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.
Claims (11)
1. The utility model provides a semi-solid type screen protection film, is suitable for attached curved surface screen, its characterized in that includes:
a base material layer configured as a protective film main body; and the number of the first and second groups,
the semi-cured OCA layer is positioned below the base material layer and can be cured under the action of UV illumination after being attached to the screen, so that the protective film is formed into a shape matched with the screen; and the number of the first and second groups,
and an adhesive layer for adhering the screen, which is located below the semi-cured OCA layer.
2. The semi-cured screen protective film according to claim 1, wherein the semi-cured OCA layer is attached to the lower surface of the substrate layer and has a thickness of 12 μm to 50 μm.
3. The semi-cured screen protective film according to claim 2, wherein the adhesive layer is attached to the lower surface of the semi-cured OCA layer and has a thickness of 10 μm to 45 μm.
4. The semi-cured screen protective film according to claim 2, wherein the thickness of the base material layer is 12 μm to 50 μm.
5. The semi-cured screen protective film according to claim 3, wherein the thickness of the base material layer is 12 μm to 50 μm.
6. The semi-cured screen protective film according to claim 1, wherein a release layer is attached to a lower surface of the semi-cured OCA layer, the adhesive layer is attached to a lower surface of the release layer, and the thickness of the semi-cured OCA layer is 20 μm to 100 μm.
7. The semi-cured screen protective film according to claim 6, wherein the spacer layer is a PET layer or a PC layer, and has a thickness of less than 25 μm.
8. The semi-cured screen protective film according to claim 6 or 7, wherein the substrate layer is a PET layer or a PC layer, and has a thickness of 12 to 50 μm.
9. The semi-cured screen protective film according to any one of claims 1 to 7, wherein a release film is attached to a lower surface of the adhesive layer.
10. The semi-cured screen protective film according to claim 1, wherein a hardened layer having a thickness of 2 μm to 5 μm is attached to the upper surface of the base material layer.
11. The semi-cured screen protective film according to claim 10, wherein a protective film is attached to an upper surface of the hardened layer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021470800.7U CN213232097U (en) | 2020-07-23 | 2020-07-23 | Semi-cured screen protection film |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021470800.7U CN213232097U (en) | 2020-07-23 | 2020-07-23 | Semi-cured screen protection film |
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| CN213232097U true CN213232097U (en) | 2021-05-18 |
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| CN202021470800.7U Active CN213232097U (en) | 2020-07-23 | 2020-07-23 | Semi-cured screen protection film |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112175532A (en) * | 2020-09-30 | 2021-01-05 | 深圳市利丰达展贸科技有限公司 | Adhesive film and application method thereof |
| CN114854363A (en) * | 2022-04-21 | 2022-08-05 | 东莞亨通光学技术有限公司 | Method for pasting film on curved screen and filling adhesive used in method |
-
2020
- 2020-07-23 CN CN202021470800.7U patent/CN213232097U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112175532A (en) * | 2020-09-30 | 2021-01-05 | 深圳市利丰达展贸科技有限公司 | Adhesive film and application method thereof |
| CN114854363A (en) * | 2022-04-21 | 2022-08-05 | 东莞亨通光学技术有限公司 | Method for pasting film on curved screen and filling adhesive used in method |
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