CN220317673U - Protective film and protective film kit - Google Patents
Protective film and protective film kit Download PDFInfo
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- CN220317673U CN220317673U CN202321589219.0U CN202321589219U CN220317673U CN 220317673 U CN220317673 U CN 220317673U CN 202321589219 U CN202321589219 U CN 202321589219U CN 220317673 U CN220317673 U CN 220317673U
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- edge
- protection
- areas
- bonding
- protective film
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- 230000001681 protective effect Effects 0.000 title claims description 37
- 239000010410 layer Substances 0.000 claims abstract description 73
- 239000005341 toughened glass Substances 0.000 claims abstract description 45
- 239000012790 adhesive layer Substances 0.000 claims abstract description 23
- 239000000945 filler Substances 0.000 claims abstract description 22
- 125000006850 spacer group Chemical group 0.000 claims description 15
- 239000000758 substrate Substances 0.000 claims description 3
- 239000000853 adhesive Substances 0.000 abstract description 12
- 230000001070 adhesive effect Effects 0.000 abstract description 12
- 238000007493 shaping process Methods 0.000 abstract 2
- 230000009286 beneficial effect Effects 0.000 description 2
- 239000004973 liquid crystal related substance Substances 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 239000011159 matrix material Substances 0.000 description 2
- 241001391944 Commicarpus scandens Species 0.000 description 1
- NIXOWILDQLNWCW-UHFFFAOYSA-N acrylic acid group Chemical group C(C=C)(=O)O NIXOWILDQLNWCW-UHFFFAOYSA-N 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000001125 extrusion Methods 0.000 description 1
- 239000011521 glass Substances 0.000 description 1
- 238000010030 laminating Methods 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
Landscapes
- Laminated Bodies (AREA)
Abstract
The application discloses a protection film and a protection film suite, wherein the protection film comprises a toughened glass layer, an adhesive layer and a filler strip; the toughened glass layer comprises a central protection area and an edge protection area connected to the periphery of the central protection area, and the lower surface of the toughened glass layer is a plane; the bonding layer is bonded to the lower surface of the toughened glass layer, and comprises a central bonding area and an edge bonding area connected to the periphery of the central bonding area; the filler strip is arranged between the edge bonding area and the edge protection area, so that the lower surface of the edge bonding area forms a concave cambered surface. So set up, can be to the lower surface shaping of the adhesive linkage of protection film, be difficult for producing white limit or bubble when the adhesive linkage after the shaping is laminated with the curved surface screen, and then have the surface of being convenient for the protection film subsides and locate the curved surface screen.
Description
Technical Field
The application relates to the technical field of protective films of display screens, in particular to a protective film and a protective film suite.
Background
In recent years, electronic devices such as smart phones, smart watches, tablet computers and the like are increasingly used, and a liquid crystal display screen adopted by the electronic devices is easy to break, and particularly, some comprehensive screen devices are high in maintenance cost. Therefore, it is becoming more common to attach a protective film, such as a high-strength tempered glass, to the surface of a liquid crystal display.
Along with the development of technology, equipment with curved surface screen appears on the market at present, and although there are trade companies to release the protection film with curved surface at present, when current protection film pastes on the curved surface screen, can generally be because protection film and curved surface screen laminating degree are poor, and then lead to the protection film to appear bubble or blank easily at the subsides in-process of establishing.
Disclosure of Invention
The main objective of this application is to propose a protection film, aims at solving the problem that bubbles or white edges are easy to generate when the protection film of the prior art is attached to the curved surface screen.
In order to achieve the above object, the present application proposes a protective film comprising a tempered glass layer, an adhesive layer and a backing strip; wherein,
the toughened glass layer comprises a central protection area and an edge protection area connected to the periphery of the central protection area, and the lower surface of the toughened glass layer is a plane;
the bonding layer is bonded to the lower surface of the toughened glass layer, and comprises a central bonding area and an edge bonding area connected to the periphery of the central bonding area;
the filler strip is arranged between the edge bonding area and the edge protection area, so that the lower surface of the edge bonding area forms a concave cambered surface.
In some embodiments of the present application, the thickness of the backing strip is less than the thickness of the adhesive layer.
In some embodiments of the present application, the pad strip is a silk-screen layer silk-screened on the lower surface of the edge protection area.
In some embodiments of the present application, the silk-screen layer has a thickness D, wherein 5 μm.ltoreq.D.
In some embodiments of the present application, the backing strip is a double sided adhesive layer disposed between the edge protection zone and the edge bonding zone.
In some embodiments of the present application, the number of edge protection zones is two, two of the edge protection zones being located on opposite sides of the central protection zone;
the number of the edge bonding areas is two, the two edge bonding areas are positioned on two opposite sides of the central bonding area, and the two edge bonding areas are arranged in one-to-one correspondence with the two edge protection areas;
the number of the cushion strips is two, and the two cushion strips are respectively arranged between the corresponding edge bonding areas and the corresponding edge protection areas.
In some embodiments of the present application, the number of the edge protection areas is four, four edge protection areas are located at the periphery of the central protection area, and four edge protection areas are sequentially connected and are in a ring shape;
the number of the edge bonding areas is correspondingly four, the four edge bonding areas are positioned at the periphery of the central bonding area, the four edge bonding areas are sequentially connected to form an annular arrangement, and the four edge bonding areas are arranged in one-to-one correspondence with the four edge protection areas;
the filler strip is in an annular arrangement, and the filler strip is arranged between the four edge protection areas and the four edge bonding areas.
In some embodiments of the present application, the upper surface of the edge protection zone is disposed obliquely downward from a side adjacent to the central protection zone to a side remote from the central protection zone.
In some embodiments of the present application, the upper edge of the tempered glass layer is rounded.
The application also provides a protection film external member, the protection film external member is including bearing matrix and protection film, bear the matrix be used for with the lower surface bonding of adhesive linkage.
According to the utility model, the filler strip is arranged between the edge protection area of the toughened glass layer and the edge bonding area of the bonding layer, and the edge bonding area of the bonding layer is lifted by the filler strip and is bent in the direction away from the toughened glass layer, so that the lower surface of the edge bonding area forms a concave cambered surface, the lower surface of the bonding layer of the protective film can be shaped, white edges or bubbles are not easy to generate when the shaped bonding layer is attached to the curved surface screen, and the protective film is convenient to attach to the surface of the curved surface screen.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings that are needed in the description of the embodiments will be briefly introduced below, it being obvious that the drawings in the following description are only some embodiments of the present application, and that other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
FIG. 1 shows an exploded view of one embodiment of a protective film of the present utility model;
FIG. 2 shows a cross-sectional view of the protective film of the present utility model mated with a curved screen;
FIG. 3 is a schematic view of the tempered glass layer of FIG. 1;
FIG. 4 is a schematic view of the adhesive layer of FIG. 1;
fig. 5 is a schematic structural diagram of an embodiment of the spacer in fig. 1.
Reference numerals illustrate:
| reference numerals | Name of the name | Reference numerals | Name of the name |
| 100 | Protective film | 20 | Adhesive layer |
| 10 | Toughened glass layer | 21 | Central bonding area |
| 11 | Central protection zone | 22 | Edge bonding zone |
| 12 | Edge protection zone | 30 | Pad strip |
The achievement of the objects, functional features and advantages of the present utility model will be further described with reference to the accompanying drawings, in conjunction with the embodiments.
Detailed Description
The following description of the embodiments of the present application will be made clearly and fully with reference to the accompanying drawings, in which it is evident that the embodiments described are only some, but not all, of the embodiments of the present application. All other embodiments, which can be made by one of ordinary skill in the art based on the embodiments herein without making any inventive effort, are intended to be within the scope of the present application.
Referring to fig. 1 to 2, the present utility model provides a protective film 100, and the protective film 100 is suitable for electronic devices with display screens, such as mobile phones, notebooks, tablet computers, and the like. The protective film 100 comprises a toughened glass layer 10, an adhesive layer 20 and a filler strip 30, wherein the toughened glass layer 10 and the adhesive layer 20 are adhered, and the filler strip 30 is arranged between the toughened glass layer 10 and the adhesive layer 20, so that the position of the adhesive layer 20 aligned with the filler strip 30 is arranged in a protruding manner in a direction away from the toughened glass layer 10.
The toughened glass layer 10 has an upper surface and a lower surface disposed opposite to each other, and in each embodiment of the present utility model, the lower surface of the toughened glass layer 10 is a light incident surface, and the upper surface of the toughened glass layer 10 is a light emergent surface. The upper surface of the toughened glass layer 10 may be a plane or a convex arc surface, the lower surface of the toughened glass layer 10 is a plane, and preferably, the upper surface and the lower surface of the toughened glass layer 10 are both planes, so that the production and the manufacture of the toughened glass layer 10 are facilitated.
The tempered glass layer 10 includes a central protection zone 11 and edge protection zones 12 connected to the periphery of the central protection zone 11, the number of the edge protection zones 12 may be one, two, three, four or more, when the number of the edge protection zones 12 is one, the edge protection zones 12 are located at one side of the central protection zone 11, when the number of the edge protection zones 12 is two, the two edge protection zones 12 may be located at two opposite sides of the central protection zone 11, and when the number of the edge protection zones 12 is four, the four edge protection zones 12 may be located at the periphery of the central protection zone 11 and sequentially connected in an annular arrangement, referring to fig. 3.
The adhesive layer 20 is formed of an adhesive having a certain fluidity, so that when the upper surface of the adhesive layer 20 is adhered to the lower surface of the tempered glass layer 10, the upper surface of the adhesive layer 20 can be matched with the lower surface of the tempered glass layer 10 through its fluidity, thereby being completely adhered to and adhered to the lower surface of the tempered glass layer 10, and the lower surface of the adhesive layer 20 can be molded under the extrusion of other structural members.
The bonding layer 20 includes a central bonding area 21 and edge bonding areas 22 connected to the periphery of the central bonding area 21, the number of the edge bonding areas 22 is identical to the number of the edge protection areas 12, the edge bonding areas 22 are arranged in a one-to-one correspondence with the edge protection areas 12, the number of the edge bonding areas 22 may be one, two, three, four or more, when the number of the edge bonding areas 22 is one, the edge bonding areas 22 are located at one side of the central bonding area 21, when the number of the edge bonding areas 22 is two, the two edge bonding areas 22 may be located at opposite sides of the central bonding area 21, and when referring to fig. 4, the four edge bonding areas 22 may be located around the central bonding area 21 and sequentially connected in an annular arrangement.
The filler strip 30 has a certain thickness, when the filler strip 30 is arranged between the edge bonding area 22 and the edge protection area 12, the upper surface of the edge bonding area 22 is deformed at the moment and is attached to the filler strip 30, and the edge bonding area 22 is integrally bent away from the edge protection area 12 under the action of the filler strip 30, so that the lower surface of the edge bonding area 22 forms a concave arc surface, the lower surface of the edge bonding area 22 can be shaped, and the lower surface of the bonding layer 20 can be adapted to a curved screen.
According to the utility model, the filler strip 30 is arranged between the edge protection area 12 of the toughened glass layer and the edge bonding area 22 of the bonding layer 20, and the edge bonding area 22 of the bonding layer 20 is lifted by the filler strip 30 and is bent in the direction away from the toughened glass layer 10, so that the lower surface of the edge bonding area 22 forms a concave cambered surface, the lower surface of the bonding layer 20 of the protective film 100 can be shaped, white edges or bubbles are not easy to generate when the shaped bonding layer 20 is attached to the curved surface screen, and the protective film 100 is convenient to attach to the surface of the curved surface screen.
It should be noted that the thickness of the backing strip 30 determines the curvature of the lower surface of the edge bonding area 22, and the greater the thickness of the backing strip 30, the greater the curvature of the lower surface of the edge bonding area 22, and the smaller the thickness of the backing strip 30, the smaller the curvature of the lower surface of the edge bonding area 22, and the thickness of the backing strip 30 can be set according to practical needs, and is not limited herein.
It should be noted that the thickness of the spacer 30 is not too large, and in some embodiments of the present utility model, the thickness of the spacer 30 is smaller than the thickness of the adhesive layer 20, so that the problem that bubbles easily occur between the tempered glass layer 10 and the adhesive layer 20 due to the fact that the spacer 30 is too large in thickness and thus the gap is generated between the position of the edge protection region 12 adjacent to the central protection region 11 and the position of the edge adhesive region 22 adjacent to the central adhesive region 21 is avoided.
It should be noted that, in various manners of forming the spacer 30, in some embodiments of the present utility model, the spacer 30 may be formed of a double-sided adhesive, where one side of the double-sided adhesive is adhered to the edge protection region 12 of the tempered glass layer 10 and the other side of the double-sided adhesive is adhered to the edge bonding region 22 when the double-sided adhesive is installed between the edge protection region 12 and the edge bonding region 22. In other embodiments of the present utility model, the spacer 30 is formed of a silk-screened layer that is silk-screened on the lower surface of the edge protection zone 12, and the side of the silk-screened layer opposite to the edge protection zone 12 is adhered to the edge adhering zone 22, and when the spacer 30 is a silk-screened layer, the spacer 30 can also eliminate the problem of white edges at the edge of the protection film 100.
When the spacer 30 is formed of a silk-screened layer, the thickness of the spacer 30 is greater than or equal to 5 μm, that is, the thickness of the silk-screened layer is greater than or equal to 5 μm, the thickness of the silk-screened layer may be 5 μm, 6 μm, 7 μm, 8 μm, 9 μm, 10 μm, 11 μm, 12 μm, 13 μm, 14 μm, 15 μm, etc., the thickness of the silk-screened layer is not too thick, and the excessive thickness may cause bubbles to easily occur between the adhesive layer 20 and the tempered glass layer 10, preferably, the thickness of the silk-screened layer is 8 μm, and the thickness of the silk-screened layer is moderate, so that the lower surface of the edge adhesive region 22 may form a concave arc surface under the effect of the silk-screened layer, and the upper surface of the edge adhesive region 22 may be tightly adhered to the edge protection region 12.
It should be noted that, the strips 30 may be disposed in a strip shape, where the number of strips 30 may be one, two, three or even more than three, and the number of strips 30 is not specifically limited herein, and the number of strips 30 is generally consistent with the number of edge bonding areas 22 and the number of edge protection areas 12. When the number of the filler strips 30 is one, the number of the edge bonding areas 22 and the number of the edge protection areas 12 are one, and the filler strips 30 are located between the edge bonding areas 22 and the edge protection areas 12.
When the number of the backing strips 30 is two, the number of the edge protection areas 12 and the number of the edge bonding areas 22 are two, the two edge protection areas 12 are located at two opposite sides of the central protection area 11, the two edge bonding areas 22 are located at two opposite sides of the central bonding area 21, the two edge protection areas 12 are arranged in one-to-one correspondence with the two edge bonding areas 22, and the two backing strips 30 are respectively arranged between the corresponding edge bonding areas 22 and the corresponding edge protection areas 12.
It should be further noted that, referring to fig. 3 to 5, when the spacer 30 is in an annular arrangement, the number of the edge protection areas 12 and the edge bonding areas 22 may be four at this time, the four edge protection areas 12 are located at the periphery of the central protection area 11, the four edge protection areas 12 are sequentially connected to form an annular arrangement, the four edge bonding areas 22 are also located at the periphery of the central bonding area 21, the four edge bonding areas 22 are sequentially connected to form an annular arrangement, the four edge bonding areas 22 are in one-to-one correspondence with the four edge protection areas 12, and the spacer 30 is disposed between the four edge protection areas 12 and the four edge bonding areas 22.
Referring to fig. 2, the upper surface of the edge protection region 12 is disposed obliquely downward from a side adjacent to the central protection region 11 to a side away from the central protection region 11. So configured, when light propagates to the edge protection area 12 through the edge bonding area 22, the light will be refracted at the upper surface of the edge protection area 12, so that the light will be inclined toward the direction close to the central protection area 11, which is beneficial for the user to view the contents displayed on the edge of the curved screen.
Further, the projection of the edge protection zone 12 in the direction of the tempered glass layer 10 approaching the bonding layer 20 covers the edge bonding zone 22, that is, the edge of the edge protection zone 12 away from the central protection zone 11 is flush with the edge of the edge bonding zone 22 away from the central bonding zone 21, and the edge of the edge protection zone 12 adjacent to the central protection zone 11 is flush or offset with the edge of the edge bonding zone 22 adjacent to the central bonding zone 21. This arrangement increases the light entering the edge protection area 12 through the edge bonding area 22, thereby ensuring that the user is able to view the contents displayed in the edge area of the curved screen.
Referring to fig. 2, the toughened glass layer 10 has a certain thickness, the lower surface of the toughened glass layer 10 is adhered to the adhesive layer 20, so that the lower edge of the toughened glass layer 10 is covered by the adhesive layer 20, the upper surface of the toughened glass layer 10 is exposed, and the upper edge of the toughened glass layer is exposed.
The utility model also provides a protective film 100 kit, and the protective film 100 kit comprises a bearing substrate and a protective film 100, wherein the bearing substrate is used for detachably bonding the lower surface of the bonding layer 20 of the protective film 100, and can be a glass plate, an acrylic plate, a film and the like. The specific structure of the protective film 100 refers to the above embodiment, and since the protective film 100 set adopts all the technical solutions of all the embodiments, the protective film 100 set also has all the beneficial effects brought by the technical solutions of the embodiments, and will not be described in detail herein.
Finally, it should be noted that: the above embodiments are only for illustrating the technical solution of the present application, and are not limiting thereof; although the present application has been described in detail with reference to the foregoing embodiments, one of ordinary skill in the art will appreciate that: the technical scheme described in the foregoing embodiments can be modified or some technical features thereof can be replaced by equivalents; such modifications and substitutions do not drive the essence of the corresponding technical solutions to depart from the spirit and scope of the technical solutions of the embodiments of the present application.
Claims (10)
1. The protective film is characterized by comprising a toughened glass layer, an adhesive layer and a filler strip; wherein,
the toughened glass layer comprises a central protection area and an edge protection area connected to the periphery of the central protection area, and the lower surface of the toughened glass layer is a plane;
the bonding layer is bonded to the lower surface of the toughened glass layer, and comprises a central bonding area and an edge bonding area connected to the periphery of the central bonding area;
the filler strip is arranged between the edge bonding area and the edge protection area, so that the lower surface of the edge bonding area forms a concave cambered surface.
2. The protective film of claim 1, wherein the spacer has a thickness less than the thickness of the adhesive layer.
3. The protective film of claim 1, wherein the spacer is a silk screen layer silk-screened on the lower surface of the edge protection zone.
4. The protective film of claim 3, wherein the silk-screen layer has a thickness D, wherein 5 μm +.d.
5. The protective film of claim 1, wherein the backing strip is a double sided adhesive layer disposed between the edge protection zone and the edge bonding zone.
6. The protective film of claim 1, wherein the number of edge protection zones is two, two of the edge protection zones being located on opposite sides of the central protection zone;
the number of the edge bonding areas is two, the two edge bonding areas are positioned on two opposite sides of the central bonding area, and the two edge bonding areas are arranged in one-to-one correspondence with the two edge protection areas;
the number of the cushion strips is two, and the two cushion strips are respectively arranged between the corresponding edge bonding areas and the corresponding edge protection areas.
7. The protective film according to claim 1, wherein the number of the edge protection areas is four, the four edge protection areas are positioned at the periphery of the central protection area, and the four edge protection areas are sequentially connected in an annular arrangement;
the number of the edge bonding areas is correspondingly four, the four edge bonding areas are positioned at the periphery of the central bonding area, the four edge bonding areas are sequentially connected to form an annular arrangement, and the four edge bonding areas are arranged in one-to-one correspondence with the four edge protection areas;
the filler strip is in an annular arrangement, and the filler strip is arranged between the four edge protection areas and the four edge bonding areas.
8. The protective film of claim 1, wherein the upper surface of the edge protection zone is disposed obliquely downward from a side adjacent to the central protection zone to a side remote from the central protection zone.
9. The protective film of claim 1, wherein the upper edge of the tempered glass layer is rounded.
10. A protective film kit comprising a carrier substrate for releasable adhesion to the lower surface of the adhesive layer, and a protective film according to any one of claims 1 to 9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321589219.0U CN220317673U (en) | 2023-06-20 | 2023-06-20 | Protective film and protective film kit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321589219.0U CN220317673U (en) | 2023-06-20 | 2023-06-20 | Protective film and protective film kit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220317673U true CN220317673U (en) | 2024-01-09 |
Family
ID=89422120
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202321589219.0U Active CN220317673U (en) | 2023-06-20 | 2023-06-20 | Protective film and protective film kit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220317673U (en) |
-
2023
- 2023-06-20 CN CN202321589219.0U patent/CN220317673U/en active Active
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