CN106079775B - A kind of protective film with unlocked by fingerprint and preparation method thereof - Google Patents
A kind of protective film with unlocked by fingerprint and preparation method thereof Download PDFInfo
- Publication number
- CN106079775B CN106079775B CN201610508344.2A CN201610508344A CN106079775B CN 106079775 B CN106079775 B CN 106079775B CN 201610508344 A CN201610508344 A CN 201610508344A CN 106079775 B CN106079775 B CN 106079775B
- Authority
- CN
- China
- Prior art keywords
- films
- base material
- sensitive adhesive
- pressure
- adhesive coating
- 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.)
- Active
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B27/00—Layered products comprising a layer of synthetic resin
- B32B27/06—Layered products comprising a layer of synthetic resin as the main or only constituent of a layer, which is next to another layer of the same or of a different material
- B32B27/08—Layered products comprising a layer of synthetic resin as the main or only constituent of a layer, which is next to another layer of the same or of a different material of synthetic resin
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B27/00—Layered products comprising a layer of synthetic resin
- B32B27/32—Layered products comprising a layer of synthetic resin comprising polyolefins
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B27/00—Layered products comprising a layer of synthetic resin
- B32B27/36—Layered products comprising a layer of synthetic resin comprising polyesters
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B2571/00—Protective equipment
Landscapes
- Measurement Of The Respiration, Hearing Ability, Form, And Blood Characteristics Of Living Organisms (AREA)
- Image Input (AREA)
- Laminated Bodies (AREA)
- Measurement Of Length, Angles, Or The Like Using Electric Or Magnetic Means (AREA)
Abstract
The invention discloses a kind of protective films with unlocked by fingerprint and preparation method thereof, which not only solves the problem of safeguard film for cellular phone cannot protect unlocked by fingerprint sensor, and is easy to volume production.The protective film of the present invention includes from top to bottom：PE films, hardened layer, PET base material, pressure-sensitive adhesive coating, PET stripping films；Pressure-sensitive adhesive coating 10~20um of thickness, PET base material 2~25um of thickness, 1~2um of thin hardened layer.The present invention is of low cost, easy to implement, it is ensured that sensor works normally rapidly.
Description
Technical field
The present invention relates to a kind of protective film manufacturing field, specifically, it is particularly to a kind of there is unlocked by fingerprint
Protective film.
Background technology
As cellular telephone companies constantly release the novel mobile phone with unlocked by fingerprint, the corresponding convenient degree that unlocks also receives
Concern, enhances the development of unlocked by fingerprint function, more and more mobile phones possess unlocked by fingerprint function.But the biography of unlocked by fingerprint
Sensor due to screen and non-integral, common safeguard film for cellular phone cannot be effectively protected to fingerprint sensor, cause fingerprint
Sensor is present with scuffing when running into hard object.
The content of the invention
Present invention aims at provide it is a kind of there is the protective film of unlocked by fingerprint, which not only solves mobile phone
Protective film cannot protect the problem of unlocked by fingerprint sensor, and processability is strong, at low cost, be easy to volume production.
In order to achieve the above objectives, the present invention uses following scheme：
A kind of to have the function of the protective film of unlocked by fingerprint, protective film includes from top to bottom：PE films, hardened layer, PET base material,
Pressure-sensitive adhesive coating, PET stripping films；Pressure-sensitive adhesive coating 10~20um of thickness, pressure-sensitive adhesive coating glue react silicon for liquid add-on type
Glue (dimethyl silicone polymer) or liquid acrylic glue (PMMA)；2~25um of PET base material thickness；1~2um of thin hardened layer,
Hardened layer glue is light-cured type acrylic resin varnish；PET removes 25~75um of film thickness；PE film thicknesses are 35~85 μm.
In some embodiments, the PET base material upper surface introduces hardened layer, and PET base material lower surface coating pressure sensitive adhesive applies
Layer；PE films are equipped with above hardened layer, PET stripping films are arranged below in pressure-sensitive adhesive coating.
In some embodiments, the pressure-sensitive adhesive coating thickness 13um, PET base material thickness 9um, thin hardened layer 1.3um,
It is 50 μm that PET, which removes film thickness 45um, PE film thickness,.
A kind of preparation method with the protective film of unlocked by fingerprint, method are as follows：
Liquid add-on type reaction silica gel (dimethyl silicone polymer) or sub- gram of liquid will be coated in 2~25 μm of PET base material
Power glue (PMMA) toasts (130~200 DEG C), 1~3min of time by baking oven, forms pressure-sensitive adhesive coating, use (25~
PET stripping films fitting 75um), becomes two layers of protective film；
On the basis of previous step, in the other one side of PET base material, one layer of light-cured type acrylic resin varnish, coating are coated with
1~2 μm of thickness of dry film forms hardened layer；
Afterwards, it is bonded in the UV hardened faces PE films of hardened layer, becomes three-layer protection film.
In some embodiments, method is as follows：
1. will be coated with liquid add-on type reaction silica gel (dimethyl silicone polymer) or liquid in 10~15 μm of PET base material
Acrylic glue (PMMA) toasts (150~170 DEG C), time 2.5min by baking oven, forms pressure-sensitive adhesive coating, using 45~
The PET stripping films fitting of 60um, becomes two layers of protective film；
2. by light-cured acrylic resin varnish, is coated on the another side of the 1. PET base material of step, nick roller coat is selected
Cloth, nick roller diameter are 30~50mm, and line number is coated with 1.3 μm of thickness of dry film between 40~400LPI, forms hardened layer；
3. the PE films of 35~85 μm of selections are fitted in the hardened face of second step.
Of low cost, easy to implement, protective film very thin thickness, it is ensured that sensor works normally rapidly of the invention.
The protective film of the present invention is divided into three layers using layer：PET base material, hardened layer, pressure-sensitive adhesive coating；Pressure-sensitive adhesive coating is pasted with sensor
It closes, the hardened layer of hardened layer is outside, effectively prevents sensor and is scraped off.
Description of the drawings
Fig. 1 is the structure diagram of the embodiment of the present invention.
Reference sign：
PET stripping films 11, pressure-sensitive adhesive coating 13, PET base material 14, hardened layer 15, PE films 17.
Specific embodiment
For that can further appreciate that the feature of the present invention, technological means and the specific purposes reached, function, this hair is parsed
The advantages of bright and spirit, by the present invention is further elaborated by the following examples.
The protective film of the present invention includes from top to bottom：PE films 17, hardened layer 15, PET base material 14, pressure-sensitive adhesive coating 13, PET
Stripping film 11.14 upper surface of PET base material introduces hardened layer 15,14 lower surface of PET base material coating pressure-sensitive adhesive coating 13；Hardened layer 15
PE films 17 are equipped with above, and PET stripping films 11 are arranged below in pressure-sensitive adhesive coating 13.
In one embodiment, implementation method of the present invention is as follows：
A, liquid add-on type reaction silica gel (dimethyl silicone polymer) or liquid will be coated in 2~25 μm of PET base material 14
Acrylic glue (PMMA) toasts (130~200 DEG C), 1~3min of time by baking oven, forms pressure-sensitive adhesive coating 13, uses
The PET stripping films 11 of (25~75um) are bonded, and become two layers of protective film；
B, in the other one side of PET base material 14 of step A, one layer of light-cured type acrylic resin varnish is coated with, forms hardening
Layer 15；
C, it is bonded in the UV hardened faces PE films 17 of step B hardened layer 15, becomes three-layer protection film.
The protective film of the present invention is divided into 3 layers using layer：PET base material 14, the hardened layer 15 of 14 upper surface of PET base material, PET bases
The pressure-sensitive adhesive coating 13 of 14 lower surface of material；Pressure-sensitive adhesive coating 13 is bonded with sensor, and the hardened layer of hardened layer 15 is outside, effectively anti-
Stop sensor to be scraped off.
Further, in one embodiment, the present invention is described in further detail：
The first step：To be coated in 2~25 μm of PET base material 14 liquid add-on type reaction silica gel (dimethyl silicone polymer) or
Liquid acrylic glue (PMMA)；It is toasted (130~200 DEG C) by baking oven, 1~3min of time, forms pressure-sensitive adhesive coating 13, make
It is bonded with the PET stripping films 11 of (25~75um), becomes two layers of protective film；
Second step：By light-cured acrylic resin varnish, the another side of the PET base material 14 of step is coated on, is selected micro-
Gravure roller coating, nick roller diameter are 30~50mm, and line number is coated with 1~2 μm of thickness of dry film between 40~400LPI, is formed hard
Change layer 15；
3rd step：The PE films 17 of 35~85 μm of selection are fitted in the hardened face of second step hardened layer 15.
What is used on present mobile phone is capacitive fingerprint sensing device mostly, and principle is that thousands of half are integrated at one piece
On " tablet " of conductor device, finger plaster is on it with which constituting the another side of capacitance (inductance), due to finger flat convex-concave
Injustice contacts the actual range size of tablet with regard to different at salient point and at concave point, the capacitive/inductive numerical value of formation also just differs
Sample, equipment around this principle summarize the different numerical value collected, just complete the acquisition and verification of fingerprint.Capacitance sensing
Device has weak current field, and finger touches to form coupled capacitor, absorbs one part of current, the meter that the electrode of surrounding passes through this position
It calculates, draws coordinate.Protective film very thin thickness provided by the invention, is not enough to bucking current, will not be to capacitive fingerprint sensor
Normal work generates any influence, and protective film of the invention can guarantee that sensor works normally rapidly.
Embodiment described above only expresses some embodiments of the present invention, and description is more specific and detailed, but simultaneously
Cannot limitation of the scope of the invention therefore be interpreted as.It should be pointed out that for those of ordinary skill in the art,
Without departing from the inventive concept of the premise, various modifications and improvements can be made, these belong to the protection model of the present invention
It encloses.Therefore, protection scope of the present invention should be determined by the appended claims.
Claims (2)
1. a kind of have the function of the protective film of unlocked by fingerprint for protect unlocked by fingerprint sensor, which is characterized in that protective film
Include from top to bottom：PE films (17), hardened layer (15), PET base material (14), pressure-sensitive adhesive coating (13), PET stripping films (11)；
13 μm of pressure-sensitive adhesive coating (13) thickness, pressure-sensitive adhesive coating (13) glue reacts silica gel for liquid add-on type or liquid is sub-
Gram force glue；
(14) 9 μm of PET base material；
1.3 μm of hardened layer (15) thickness, hardened layer (15) glue are light-cured type acrylic resin varnish；
45 μm of PET stripping films (11) thickness；PE films (17) thickness is 50 μm；
PET base material (14) upper surface introduces hardened layer (15), PET base material (14) lower surface coating pressure-sensitive adhesive coating (13)；Hardening
Layer (15) is equipped with PE films (17) above, and PET stripping films (11) are arranged below in pressure-sensitive adhesive coating (13).
2. a kind of system with the protective film of unlocked by fingerprint for being used to protect unlocked by fingerprint sensor as described in claim 1
Preparation Method, which is characterized in that method is as follows：
1. will be coated with liquid add-on type reaction silica gel or liquid acrylic glue in 9 μm of PET base material (14), dried by baking oven
Roasting, 150~170 DEG C, time 2.5min of temperature forms pressure-sensitive adhesive coating (13), is bonded using 45 μm of PET stripping films (11),
As two layers of protective film；
2. by light-cured acrylic resin varnish, is coated on the another side of the PET base material (14) of 1. step, nick roller coat is selected
Cloth, nick roller diameter are 30~50mm, and line number is coated with 1.3 μm of thickness of dry film between 40~400LPI, forms hardened layer
(15)；
3. the PE films (17) of 50 μm of selections are fitted in the hardening level of second step.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610508344.2A CN106079775B (en) | 2016-06-29 | 2016-06-29 | A kind of protective film with unlocked by fingerprint and preparation method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610508344.2A CN106079775B (en) | 2016-06-29 | 2016-06-29 | A kind of protective film with unlocked by fingerprint and preparation method thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106079775A CN106079775A (en) | 2016-11-09 |
| CN106079775B true CN106079775B (en) | 2018-06-01 |
Family
ID=57214845
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610508344.2A Active CN106079775B (en) | 2016-06-29 | 2016-06-29 | A kind of protective film with unlocked by fingerprint and preparation method thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106079775B (en) |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108084904A (en) * | 2018-01-31 | 2018-05-29 | 四川省维奇光电科技有限公司 | A kind of display screen protective film for increasing optics briliancy |
| CN108943978B (en) * | 2018-09-13 | 2023-09-19 | 东莞市赛越新材料科技有限公司 | Manufacturing method of under-screen fingerprint unlocking protective film |
| CN108943979B (en) * | 2018-09-13 | 2023-10-17 | 东莞市赛越新材料科技有限公司 | Manufacturing method of fingerprint unlocking mobile phone protection photo-curing film |
| CN114633499B (en) * | 2020-12-15 | 2024-07-02 | 北京小米移动软件有限公司 | Method for preparing protective film |
| CN113174217B (en) * | 2021-03-31 | 2022-11-08 | 淮安维嘉益集成科技有限公司 | Preparation method of silicon-free protective film |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN203472223U (en) * | 2013-07-19 | 2014-03-12 | 奕东电子(常熟)有限公司 | Anti-static three-layer scratch-resistant protection foil |
| CN204687490U (en) * | 2015-04-22 | 2015-10-07 | 吴学如 | The fingerprint induction diaphragm of end product |
| CN105176370A (en) * | 2015-07-27 | 2015-12-23 | 东莞市纳利光学材料有限公司 | Protective film with arc-shaped edge capable of being fitted and manufacturing method therefor |
| CN105522799A (en) * | 2016-01-13 | 2016-04-27 | 东莞市纳利光学材料有限公司 | Hot-press molded protective film with shinning and antistatic effects and preparation method thereof |
| CN205836153U (en) * | 2016-06-29 | 2016-12-28 | 东莞市纳利光学材料有限公司 | A kind of protecting film with unlocked by fingerprint function |
-
2016
- 2016-06-29 CN CN201610508344.2A patent/CN106079775B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN203472223U (en) * | 2013-07-19 | 2014-03-12 | 奕东电子(常熟)有限公司 | Anti-static three-layer scratch-resistant protection foil |
| CN204687490U (en) * | 2015-04-22 | 2015-10-07 | 吴学如 | The fingerprint induction diaphragm of end product |
| CN105176370A (en) * | 2015-07-27 | 2015-12-23 | 东莞市纳利光学材料有限公司 | Protective film with arc-shaped edge capable of being fitted and manufacturing method therefor |
| CN105522799A (en) * | 2016-01-13 | 2016-04-27 | 东莞市纳利光学材料有限公司 | Hot-press molded protective film with shinning and antistatic effects and preparation method thereof |
| CN205836153U (en) * | 2016-06-29 | 2016-12-28 | 东莞市纳利光学材料有限公司 | A kind of protecting film with unlocked by fingerprint function |
Also Published As
| Publication number | Publication date |
|---|---|
| CN106079775A (en) | 2016-11-09 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN106079775B (en) | A kind of protective film with unlocked by fingerprint and preparation method thereof | |
| US10429928B2 (en) | Systems, articles, and methods for capacitive electromyography sensors | |
| KR101368804B1 (en) | Method of manufacturing fingerprint recognition home key having offset structure of deco part and the structure of fingerprint recognition home key thereof | |
| CN103129073B (en) | Device with multiple printing layers and printing method thereof | |
| CN104182739A (en) | Fingerprint identification device and electronic device of fingerprint identification device and packaging method of fingerprint identification device | |
| KR101298636B1 (en) | Method of manufacturing fingerprint recognition home key for strengthening adhesion and screening effect between sensing surface and coating layer and the fingerprint recognition home key structure thereof | |
| CN103072348B (en) | A kind of diaphragm of antimicrobial form and its preparation method | |
| KR101444374B1 (en) | Waterproof thin film for mobile device | |
| EP2814054A2 (en) | Method of manufacturing fingerprint recognition home key | |
| EP1316912A3 (en) | Protection of exposed semiconductor chip using thin polymer coatings | |
| CN106156584A (en) | A kind of full screen fingerprint touch-control unlocks display floater and unlocking method | |
| CN105335728B (en) | Finger print identification unit | |
| CN107330411A (en) | A kind of fingerprint identification device and preparation method thereof, touch control display apparatus | |
| KR101758249B1 (en) | Imprinted Surface Layer Structure for Finger Scan Sensor And Injected Part of Electric Appliances, And Method for Forming the Surface Layer Structure | |
| CN205375501U (en) | Fingerprint identification apparatus | |
| CN205836153U (en) | A kind of protecting film with unlocked by fingerprint function | |
| CN105430957A (en) | Strengthenned blind cover and production method thereof | |
| US9727771B2 (en) | Touch device with fingerprint identification function | |
| CN204347789U (en) | Touch control component | |
| KR101505993B1 (en) | Fingerprint recognition sensor package and method for manufacturing fingerprint recognition sensor package | |
| KR101368266B1 (en) | Fingerprint recognition home key having stiffener and manufacturing method of the same | |
| CN203397333U (en) | Anti-interference coating film for touch screen | |
| TWI557625B (en) | Capacitive fingerprint identification device and manufacturing method thereof | |
| KR101349682B1 (en) | Method of manufacturing fingerprint recognition home key | |
| KR101506316B1 (en) | Fingerprint recognition sensor package and method for manufacturing fingerprint recognition sensor package |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |