CN215947175U - Flexible inner anti-explosion membrane for 3D curved surface stripping - Google Patents
Flexible inner anti-explosion membrane for 3D curved surface stripping Download PDFInfo
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- CN215947175U CN215947175U CN202121202206.4U CN202121202206U CN215947175U CN 215947175 U CN215947175 U CN 215947175U CN 202121202206 U CN202121202206 U CN 202121202206U CN 215947175 U CN215947175 U CN 215947175U
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Abstract
The utility model discloses a 3D curved surface stripping flexible inner explosion-proof membrane, which comprises a flexible thin film substrate layer, wherein the flexible thin film substrate layer is provided with a first surface and a second surface which are opposite in thickness direction, the first surface is provided with an optical pressure-sensitive adhesive layer, the flexible thin film substrate layer comprises a main screen attaching part and a curved surface attaching part arranged on the side of the main screen attaching part, and the thickness of the curved surface attaching part is greater than that of the main screen attaching part; the first surface and the second surface of the main screen attaching portion and the curved surface attaching portion are in smooth transition. The 3D curved surface stripping flexible inner explosion-proof membrane comprises a main screen attaching part and a curved surface attaching part, and a buffer structure with a locally enhanced curved surface part is formed by locally thickening the curved surface attaching part, so that the probability of damage and burst of the curved surface due to external impact is reduced; the main screen laminating portion and the curved surface laminating portion of the flexible thin film material have good laminating degree with the screen and stable adhesive force with the inner surface of the screen.
Description
Technical Field
The utility model relates to the technical field of explosion-proof membranes, in particular to a 3D curved surface stripping flexible inner explosion-proof membrane.
Background
The curved screen has novel visual experience and more comfortable holding feeling, but also has the problems of high screen breaking rate and high maintenance cost. An inner explosion-proof film is attached to the curved screen, so that the probability of damage and burst caused by external impact can be reduced to a certain extent. The curvature of four sides of the 3D display screen is continuously improved, and the requirement on the fitting degree of the inner explosion-proof membrane is higher and higher. The basic structure of the explosion-proof membrane in the prior art is a base membrane and an optical pressure surface glue layer arranged on the surface of the base membrane, wherein the base membrane is a flexible thin membrane with consistent thickness. The flexible film helps to improve the fit of the rupture membrane to the curved surface, but the protection performance of the curved surface part is consistent with that of the main screen part.
SUMMERY OF THE UTILITY MODEL
One of the purposes of the utility model is to overcome the defects in the prior art and provide a 3D curved surface stripping flexible inner explosion-proof membrane, and the thickened curved surface joint part can improve the explosion-proof performance of the curved surface part at the side edge of the curved surface screen.
In order to achieve the technical effects, the technical scheme of the utility model is as follows: A3D curved surface stripping flexible inner explosion-proof membrane comprises a flexible thin film base material layer, wherein the flexible thin film base material layer is provided with a first surface and a second surface which are opposite in thickness direction, an optical pressure-sensitive adhesive layer is arranged on the first surface, the flexible thin film base material layer comprises a main screen laminating part and a curved surface laminating part arranged on the side of the main screen laminating part, and the thickness of the curved surface laminating part is larger than that of the main screen laminating part; the main screen attaching portion and the first surface and the second surface of the curved surface attaching portion are in smooth transition.
The preferred technical scheme does, curved surface laminating portion includes range upon range of basic unit and enhancement layer of thickness direction, the basic unit with main screen laminating portion body coupling and thickness are unanimous, the enhancement layer with basic unit coating is compound. The curved surface joint part is prepared by adopting a coating process, so that the using amount of optical cement is reduced.
The preferable technical scheme is that the thickness of the base layer is 50-165 micrometers, and the ratio of the thickness of the base layer to the thickness of the reinforcing layer is 1: (0.5-0.25). The thickness of the reinforcing layer is too thick, the deformation of pictures at the curved surface of the screen is obvious, and the difficulty of curved surface fitting is increased.
The preferable technical scheme is that the thickness of the optical pressure-sensitive adhesive layer is 10-30 microns.
The preferred technical scheme is that the light transmittance of the main screen attaching part and the curved surface attaching part is not less than 92%.
The optical pressure-sensitive adhesive layer is characterized by further comprising a release layer, and the release layer is connected with the optical pressure-sensitive adhesive layer in an adhesive mode.
The preferable technical scheme is that the flexible film base material layer is a TPU film. The TPU material has excellent weather resistance, dimensional stability and aging resistance, has good elasticity, and can meet the requirement of the joint degree between the attached objects of the curved joint part with increased thickness.
The utility model has the advantages and beneficial effects that:
the 3D curved surface stripping flexible inner explosion-proof membrane comprises a main screen attaching part and a curved surface attaching part, and a buffer structure with a locally enhanced curved surface part is formed by locally thickening the curved surface attaching part, so that the probability of damage and burst of the curved surface due to external impact is reduced;
the main screen laminating portion and the curved surface laminating portion of the flexible thin film material have good laminating degree with the screen and stable adhesive force with the inner surface of the screen.
Drawings
FIG. 1 is a schematic structural diagram of a 3D curved surface stripping flexible inner rupture membrane in front view;
FIG. 2 is an enlarged view of a portion of FIG. 1;
FIG. 3 is an enlarged partial view of another embodiment of a 3D curved peel flexible inner rupture disk;
in the figure: 1. a TPU substrate layer; 11. a main screen attaching part; 12. a curved surface attachment part; 1201. a base layer; 1202. a reinforcing layer; 1203. an optical adhesive core layer; 2. an optical pressure sensitive adhesive layer; 3. and a release layer.
Detailed Description
The following description of the embodiments of the present invention will be made with reference to the accompanying drawings. The following examples are only for illustrating the technical solutions of the present invention more clearly, and the protection scope of the present invention is not limited thereby.
The utility model will be further explained with reference to the following schematic examples, which are shown in the accompanying drawings. Various advantages of the present invention will become more apparent from the following description. The shapes and dimensions of the various elements in the schematic drawings are illustrative only and are not to be construed as embodying the actual shapes, dimensions and absolute positions.
Main screen laminating portion and curved surface laminating portion
The main screen attaching portion and the curved surface attaching portion are specifically arranged according to the size of the mobile phone screen, and before die cutting is carried out according to the mobile phone screen, the main screen attaching portion and the curved surface attaching portion on the explosion-proof membrane sheet are arranged at intervals in the width direction of the sheet.
Base layer and reinforcing layer
The base layer and the main screen attaching portion are integrated into a uniform-thickness film, and optionally, the reinforcing layer is connected with the base layer through OCA bonding or is prepared through a process of coating and curing on the surface of the base layer. The setting process of the reinforcing layer is specifically determined according to the material of the reinforcing layer.
As shown in fig. 1, in an embodiment, the 3D curved surface peeling flexible inner explosion-proof membrane includes a TPU substrate layer 1, the TPU substrate layer 1 has a first surface and a second surface opposite to each other in a thickness direction, the first surface is provided with an optical pressure-sensitive adhesive layer 2, a release layer 3 is bonded to the surface of the optical pressure-sensitive adhesive layer 2, the TPU substrate layer 1 includes a main screen bonding portion 11 and a curved surface bonding portion 12 disposed on a side of the main screen bonding portion 11, and a thickness of the curved surface bonding portion 12 is greater than a thickness of the main screen bonding portion 11; the first surface and the second surface of the main screen attaching part 11 and the curved surface attaching part 12 are in smooth transition; in this embodiment, the thickness of the base layer 1201 of the main screen attaching part 11 and the curved surface attaching part 12 is 165 micrometers, the total thickness of the curved surface attaching part 12 (the total thickness of the base layer 1201 and the reinforcing layer 1202) is 200 micrometers, and the thickness of the optical pressure-sensitive adhesive layer 2 is 15 micrometers.
As shown in fig. 2, in an embodiment, the curved surface attaching part 12 includes a base layer 1201 and a reinforcing layer 1202 laminated in a thickness direction, the base layer 1201 and the main screen attaching part 11 are integrally connected and have a uniform thickness, and the reinforcing layer 1202 and the base layer 1201 are coated and compounded.
In another embodiment, as shown in fig. 3, an optical core 1203 is disposed between the base layer 1201 and the reinforcing layer 1202 for adhesively bonding the base layer 1201 and the reinforcing layer 1202.
In another embodiment, optionally, the thickness of the base layer 1201 is 50 to 165 micrometers, and the ratio of the thickness of the base layer 1201 to the thickness of the reinforcement layer 1202 is 1: (0.5-0.25), and the thickness of the optical pressure-sensitive adhesive layer 2 is 10-30 micrometers. In order to ensure the light transmittance of the screen, the light transmittance of the main screen attaching part 11 and the curved surface attaching part 12 is not less than 92%.
When the device is used, the release layer 3 is removed from the surface of the optical pressure-sensitive adhesive layer 2, the main screen attaching part 11 is attached to the inner surface of the planar main screen of the screen glass, and then the curved surface attaching part 12 is attached to the curved surface of the screen glass.
The foregoing is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, various modifications and decorations can be made without departing from the technical principle of the present invention, and these modifications and decorations should also be regarded as the protection scope of the present invention.
Claims (7)
1. The 3D curved surface stripping flexible inner explosion-proof membrane comprises a flexible thin film base material layer, wherein the flexible thin film base material layer is provided with a first surface and a second surface which are opposite in thickness direction, and an optical pressure-sensitive adhesive layer is arranged on the first surface; the main screen attaching portion and the first surface and the second surface of the curved surface attaching portion are in smooth transition.
2. The 3D curved surface stripping flexible inner explosion-proof membrane as claimed in claim 1, wherein the curved surface attaching portion comprises a base layer and a reinforcing layer which are stacked in the thickness direction, the base layer and the main screen attaching portion are integrally connected and have the same thickness, and the reinforcing layer and the base layer are coated and compounded.
3. The 3D curved surface stripping flexible inner explosion-proof membrane as claimed in claim 1, wherein the thickness of the base layer is 50-165 microns, and the ratio of the thickness of the base layer to the thickness of the reinforcing layer is 1: (0.5-0.25).
4. The 3D curved surface stripping flexible inner explosion-proof membrane as claimed in claim 1, wherein the thickness of the optical pressure-sensitive adhesive layer is 10-30 microns.
5. The 3D curved surface stripping flexible inner explosion-proof membrane as claimed in claim 1, wherein the light transmittance of the main screen attaching part and the curved surface attaching part is not less than 92%.
6. The 3D curved surface stripping flexible inner explosion-proof membrane as claimed in claim 1, further comprising a release layer, wherein the release layer is connected with the optical pressure-sensitive adhesive layer in an adhesive manner.
7. The 3D curved surface stripping flexible inner explosion-proof membrane as claimed in claim 2, wherein the flexible thin film substrate layer is a TPU thin film.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121202206.4U CN215947175U (en) | 2021-06-01 | 2021-06-01 | Flexible inner anti-explosion membrane for 3D curved surface stripping |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121202206.4U CN215947175U (en) | 2021-06-01 | 2021-06-01 | Flexible inner anti-explosion membrane for 3D curved surface stripping |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215947175U true CN215947175U (en) | 2022-03-04 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202121202206.4U Active CN215947175U (en) | 2021-06-01 | 2021-06-01 | Flexible inner anti-explosion membrane for 3D curved surface stripping |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN215947175U (en) |
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2021
- 2021-06-01 CN CN202121202206.4U patent/CN215947175U/en active Active
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