CN220201823U - Composite fingerprint identification adhesive tape and composite fingerprint identification key - Google Patents
Composite fingerprint identification adhesive tape and composite fingerprint identification key Download PDFInfo
- Publication number
- CN220201823U CN220201823U CN202320914336.3U CN202320914336U CN220201823U CN 220201823 U CN220201823 U CN 220201823U CN 202320914336 U CN202320914336 U CN 202320914336U CN 220201823 U CN220201823 U CN 220201823U
- Authority
- CN
- China
- Prior art keywords
- pet substrate
- foil layer
- fingerprint identification
- composite fingerprint
- aluminium foil
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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- 239000002131 composite material Substances 0.000 title claims abstract description 25
- 239000002390 adhesive tape Substances 0.000 title abstract description 12
- 239000000758 substrate Substances 0.000 claims abstract description 51
- 239000010410 layer Substances 0.000 claims abstract description 48
- 239000011248 coating agent Substances 0.000 claims abstract description 34
- 238000000576 coating method Methods 0.000 claims abstract description 34
- 229910052782 aluminium Inorganic materials 0.000 claims abstract description 24
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims abstract description 24
- 239000011888 foil Substances 0.000 claims abstract description 24
- 239000012790 adhesive layer Substances 0.000 claims abstract description 12
- NIXOWILDQLNWCW-UHFFFAOYSA-N 2-Propenoic acid Natural products OC(=O)C=C NIXOWILDQLNWCW-UHFFFAOYSA-N 0.000 claims abstract description 10
- SMZOUWXMTYCWNB-UHFFFAOYSA-N 2-(2-methoxy-5-methylphenyl)ethanamine Chemical compound COC1=CC=C(C)C=C1CCN SMZOUWXMTYCWNB-UHFFFAOYSA-N 0.000 claims abstract description 9
- 239000005030 aluminium foil Substances 0.000 claims description 21
- 239000005341 toughened glass Substances 0.000 claims description 16
- 239000003292 glue Substances 0.000 claims description 12
- 239000012528 membrane Substances 0.000 claims description 9
- 150000001875 compounds Chemical class 0.000 claims description 5
- 238000007711 solidification Methods 0.000 claims description 4
- 230000008023 solidification Effects 0.000 claims description 4
- 230000017525 heat dissipation Effects 0.000 abstract description 3
- 239000011810 insulating material Substances 0.000 abstract description 2
- 229920000139 polyethylene terephthalate Polymers 0.000 abstract 7
- 239000005020 polyethylene terephthalate Substances 0.000 abstract 7
- -1 polyethylene terephthalate Polymers 0.000 abstract 1
- 238000000034 method Methods 0.000 description 5
- 230000008569 process Effects 0.000 description 5
- 229910052751 metal Inorganic materials 0.000 description 4
- 239000002184 metal Substances 0.000 description 4
- 239000013078 crystal Substances 0.000 description 3
- 229910021419 crystalline silicon Inorganic materials 0.000 description 3
- 239000000203 mixture Substances 0.000 description 3
- 239000002210 silicon-based material Substances 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 239000011347 resin Substances 0.000 description 2
- 229920005989 resin Polymers 0.000 description 2
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 description 1
- YCKRFDGAMUMZLT-UHFFFAOYSA-N Fluorine atom Chemical compound [F] YCKRFDGAMUMZLT-UHFFFAOYSA-N 0.000 description 1
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 description 1
- 239000000853 adhesive Substances 0.000 description 1
- 230000001070 adhesive effect Effects 0.000 description 1
- 230000003064 anti-oxidating effect Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000013329 compounding Methods 0.000 description 1
- 239000006185 dispersion Substances 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 229910052731 fluorine Inorganic materials 0.000 description 1
- 239000011737 fluorine Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 230000003647 oxidation Effects 0.000 description 1
- 238000007254 oxidation reaction Methods 0.000 description 1
- 239000000843 powder Substances 0.000 description 1
- 229910052710 silicon Inorganic materials 0.000 description 1
- 239000010703 silicon Substances 0.000 description 1
- 238000003756 stirring Methods 0.000 description 1
- 210000004243 sweat Anatomy 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Landscapes
- Laminated Bodies (AREA)
Abstract
The utility model discloses a composite fingerprint identification adhesive tape and a composite fingerprint identification key, which comprise a PET (polyethylene terephthalate) substrate, wherein an aluminum foil layer is arranged on one side of the PET substrate, a first matte black coating is arranged on one side of the aluminum foil layer far away from the PET substrate, a second matte black coating is arranged on the other side of the PET substrate, the aluminum foil layer is arranged on one side of the first matte black coating far away from the PET substrate, the PET substrate and the aluminum foil layer are connected through a solidified adhesive layer, and the composite fingerprint identification adhesive tape further comprises a transparent grid release film which is connected with the aluminum foil layer through a black acrylic acid adhesive layer. The insulating material has good insulating property and heat dissipation efficiency, and has wide application prospect when being applied to various electronic products, door lock keys and the like.
Description
Technical Field
The utility model relates to the field of electronic products, in particular to a composite fingerprint identification adhesive tape and a composite fingerprint identification key.
Background
The surface of the crystal silicon material for fingerprint key identification in the original notebook computer is required to be coated with an organic resin, the complex process is high in cost and low in productivity, chinese patent 201720651236.0 discloses a fingerprint identification key, which comprises a fingerprint identification chip and a metal panel for protecting the fingerprint identification chip, wherein the metal panel is matched with the fingerprint identification chip in size, the crystal silicon material is characterized in that one side surface of the metal panel is adhered with the fingerprint identification chip, the other side surface of the metal panel is provided with an organic coating which is used for preventing human fingerprint trace residues and contains fluorine elements, and the process for coating the organic coating is complex, high in cost and not suitable for wide application.
Disclosure of Invention
The utility model solves the technical problem of providing a composite fingerprint identification adhesive tape with low cost and good performance and a composite fingerprint identification adhesive tape.
The technical scheme adopted for solving the technical problems is as follows: the utility model provides a compound fingerprint identification sticky tape, includes the PET substrate, PET substrate one side is provided with the aluminium foil layer, PET substrate one side is kept away from on the aluminium foil layer is provided with first dumb black coating, PET substrate opposite side is provided with the dumb black coating of second, first dumb black coating is provided with the aluminium foil layer apart from PET substrate one side, be connected through the solidification glue film between PET substrate and the aluminium foil layer, still include transparent net and leave the type membrane, transparent net is from the type membrane to be connected with the aluminium foil layer through black acrylic acid glue film.
Further is: the thickness of the PET substrate is 0.025mm plus or minus 0.003mm.
Further is: the thickness of the cured adhesive layer is 0.001mm.
Further is: the thickness of the aluminum foil layer is 0.006mm.
The utility model also discloses a composite fingerprint identification key, which comprises a PET substrate, wherein one side of the PET substrate is provided with an aluminum foil layer, one side of the aluminum foil layer, which is far away from the PET substrate, is provided with a first matte black coating, the other side of the PET substrate is provided with a second matte black coating, one side, which is far away from the PET substrate, of the first matte black coating is provided with an aluminum foil layer, the PET substrate is connected with the aluminum foil layer through a cured adhesive layer, and the composite fingerprint identification key further comprises chip toughened glass, and the chip toughened glass is connected with the aluminum foil layer through a black acrylic acid adhesive layer.
Further is: the thickness of the PET substrate is 0.025mm plus or minus 0.003mm.
Further is: the thickness of the cured adhesive layer is 0.001mm.
Further is: the thickness of the aluminum foil layer is 0.006mm.
Further is: the thickness of the chip toughened glass is 2mm-3mm.
The beneficial effects of the utility model are as follows: the chip-type toughened glass composite ultrathin fingerprint identification adhesive tape is selected to replace a crystalline silicon material, so that the waterproof sweat-proof, scratch-proof, alcohol-proof, oxidation-proof, good in light-shielding performance and the like are formed, the cost is reduced, and the productivity is improved. The insulating material has good insulating property and heat dissipation efficiency, and has wide application prospect when being applied to various electronic products, door lock keys and the like.
Drawings
Fig. 1 is a schematic structural diagram of a composite fingerprint identification tape according to an embodiment of the present application.
Fig. 2 is a schematic structural diagram of a composite fingerprint recognition key according to an embodiment of the present application.
Marked in the figure as: the PET substrate comprises a second matte black coating 1, a PET substrate 2, a first matte black coating 3, a cured adhesive layer 4, an aluminum foil layer 5, a black acrylic glue layer 6, a transparent grid release film 7 and chip toughened glass 8.
Detailed Description
In order that the above objects, features and advantages of the utility model will be readily understood, a more particular description of the utility model will be rendered by reference to the appended drawings.
As shown in fig. 1, the embodiment of the application discloses compound fingerprint identification sticky tape, including PET substrate 2, PET substrate 2 one side is provided with aluminium foil layer 5, aluminium foil layer 5 is kept away from PET substrate 2 one side and is provided with first dumb black coating 3, PET substrate 2 opposite side is provided with the dumb black coating 1 of second, first dumb black coating 3 is kept away from PET substrate 2 one side and is provided with aluminium foil layer 5, be connected through solidification glue film 4 between PET substrate 2 and the aluminium foil layer 5, still include transparent net from type membrane 7, transparent net is from type membrane 7 through black acrylic acid glue layer 6 and aluminium foil layer 5 connection.
Specifically, in the above-mentioned structure, all coat the dumb black coating in PET substrate 2 both sides to make this fingerprint identification sticky tape have the shading effect, dumb black coating still has good waterproof, sweat-proof, scratch-proof, alcohol-proof antioxidation's performance simultaneously, compound in this sticky tape has aluminium foil layer 5, thereby make it have good heat dispersion, black acrylic acid glue and transparent net from type membrane 7 have been adopted in the above-mentioned structure simultaneously, thereby make when needs are glued this sticky tape on chip toughened glass 8, only need tear the net from type membrane and with this sticky tape attached on chip toughened glass 8 can, owing to the setting of net from type membrane, make when attaching, can not produce the bubble, thereby have effectual defoaming function.
When the adhesive tape is attached to the chip toughened glass 8, the following structure is formed: the composite fingerprint identification key comprises a PET substrate 2, wherein an aluminum foil layer 5 is arranged on one side of the PET substrate 2, a first matte black coating 3 is arranged on one side, far away from the PET substrate 2, of the aluminum foil layer 5, a second matte black coating 1 is arranged on the other side of the PET substrate 2, an aluminum foil layer 5 is arranged on one side, far away from the PET substrate 2, of the first matte black coating 3, the PET substrate 2 and the aluminum foil layer 5 are connected through a cured adhesive layer 4, chip toughened glass 8 is further included, and the chip toughened glass 8 is connected with the aluminum foil layer 5 through a black acrylic acid adhesive layer 6.
Specifically, the thickness of the PET substrate 2 is 0.025 mm.+ -. 0.003mm, specifically, 0.025mm, 0.027mm, 0.023mm, etc.
Specifically, the thickness of the cured adhesive layer 4 is 0.001mm, and the thickness of the aluminum foil layer 5 is 0.006mm.
The chip toughened glass 8 and the fingerprint identification adhesive tape are matched to replace the originally used crystalline silicon, and the crystalline silicon is required to be coated with an organic resin coating on the surface, so that the process is complex, the cost is high, the productivity is low, the process is simple, and the specific process is as follows: firstly, carrying out matte black coating treatment on the two sides of a PET substrate 2 with good transparency and flexibility of 0.025mm plus or minus 0.003mm, coating an adhesive treatment layer on the matte black coating on one side, compounding aluminum foil with the thickness of 0.001mm or so, adding acrylic acid glue into insulating black ink to stir uniformly, coating the mixture on a grid release film, attaching the mixture on the aluminum foil with the thickness of 0.006mm, baking the mixture at the temperature of 70-75 ℃ for 20min, and obtaining the composite fingerprint identification adhesive tape with the total thickness of 0.05mm plus or minus 0.005 mm. After the grid release film is torn off, the grid release film is attached to 2mm-3mm chip toughened glass 8 to replace crystal silicon to form a key.
From the above, the product has simple manufacturing process, and the manufactured product has the following advantages:
1. when the adhesive tape is adhered to the chip tempered glass 8, no air bubbles are generated.
2. The setting of the matte black coating enables the product to have the functions of water resistance, sweat resistance, scratch resistance, alcohol resistance and oxidation resistance, and simultaneously has good shading performance, wherein the antistatic coefficient can reach 10 11 To the power.
3. Due to the arrangement of the aluminum foil layer 5, the structure has good heat dissipation efficiency.
4. The non-conductive powder in the glue layer 4 is solidified, so that the product has good insulating property.
While the foregoing is directed to embodiments of the present utility model, other and further details of the utility model may be had by the present utility model, it should be understood that the foregoing description is merely illustrative of the present utility model and that no limitations are intended to the scope of the utility model, except insofar as modifications, equivalents, improvements or modifications are within the spirit and principles of the utility model.
Claims (9)
1. The utility model provides a compound fingerprint identification sticky tape which characterized in that: including PET substrate (2), PET substrate (2) one side is provided with aluminium foil layer (5), PET substrate (2) one side is kept away from in aluminium foil layer (5) is provided with first dumb black coating (3), PET substrate (2) opposite side is provided with the dumb black coating of second (1), PET substrate (2) one side is kept away from in dumb black coating (3) is provided with aluminium foil layer (5), be connected through solidification glue film (4) between PET substrate (2) and aluminium foil layer (5), still include transparent net from type membrane (7), transparent net is from type membrane (7) to be connected with aluminium foil layer (5) through black acrylic acid glue film (6).
2. The composite fingerprint identification tape of claim 1, wherein: the thickness of the PET substrate (2) is 0.025mm plus or minus 0.003mm.
3. The composite fingerprint identification tape of claim 1, wherein: the thickness of the cured adhesive layer (4) is 0.001mm.
4. The composite fingerprint identification tape of claim 1, wherein: the thickness of the aluminum foil layer (5) is 0.006mm.
5. The compound fingerprint identification button, its characterized in that: including PET substrate (2), PET substrate (2) one side is provided with aluminium foil layer (5), PET substrate (2) one side is kept away from in aluminium foil layer (5) is provided with first dumb black coating (3), PET substrate (2) opposite side is provided with the dumb black coating (1) of second, PET substrate (2) one side is kept away from in the dumb black coating (3) is provided with aluminium foil layer (5), be connected through solidification glue film (4) between PET substrate (2) and aluminium foil layer (5), still include chip toughened glass (8), chip toughened glass (8) are connected with aluminium foil layer (5) through black acrylic acid glue layer (6).
6. The composite fingerprint recognition key of claim 5, wherein: the thickness of the PET substrate (2) is 0.025mm plus or minus 0.003mm.
7. The composite fingerprint recognition key of claim 5, wherein: the thickness of the cured adhesive layer (4) is 0.001mm.
8. The composite fingerprint recognition key of claim 5, wherein: the thickness of the aluminum foil layer (5) is 0.006mm.
9. The composite fingerprint recognition key of claim 5, wherein: the thickness of the chip toughened glass (8) is 2mm-3mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320914336.3U CN220201823U (en) | 2023-04-21 | 2023-04-21 | Composite fingerprint identification adhesive tape and composite fingerprint identification key |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320914336.3U CN220201823U (en) | 2023-04-21 | 2023-04-21 | Composite fingerprint identification adhesive tape and composite fingerprint identification key |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220201823U true CN220201823U (en) | 2023-12-19 |
Family
ID=89153365
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202320914336.3U Active CN220201823U (en) | 2023-04-21 | 2023-04-21 | Composite fingerprint identification adhesive tape and composite fingerprint identification key |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220201823U (en) |
-
2023
- 2023-04-21 CN CN202320914336.3U patent/CN220201823U/en active Active
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| GR01 | Patent grant | ||
| GR01 | Patent grant |