CN108690517A - A kind of high light transmittance screen protecting film - Google Patents
A kind of high light transmittance screen protecting film Download PDFInfo
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- CN108690517A CN108690517A CN201810842045.1A CN201810842045A CN108690517A CN 108690517 A CN108690517 A CN 108690517A CN 201810842045 A CN201810842045 A CN 201810842045A CN 108690517 A CN108690517 A CN 108690517A
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- light transmittance
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- 238000002834 transmittance Methods 0.000 title claims abstract description 18
- 239000010410 layer Substances 0.000 claims abstract description 119
- 230000003287 optical effect Effects 0.000 claims abstract description 34
- 239000011521 glass Substances 0.000 claims abstract description 20
- 239000012790 adhesive layer Substances 0.000 claims abstract description 19
- 239000007800 oxidant agent Substances 0.000 claims abstract description 13
- 230000001590 oxidative effect Effects 0.000 claims abstract description 13
- 230000004907 flux Effects 0.000 claims abstract description 6
- 150000001875 compounds Chemical class 0.000 claims abstract description 5
- 229920001296 polysiloxane Polymers 0.000 claims description 9
- 238000007766 curtain coating Methods 0.000 claims description 5
- 239000011241 protective layer Substances 0.000 claims description 5
- 239000003292 glue Substances 0.000 claims description 4
- 239000003595 mist Substances 0.000 claims description 4
- 238000000926 separation method Methods 0.000 claims description 4
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 3
- -1 acryl Chemical group 0.000 claims description 2
- 239000010408 film Substances 0.000 claims 26
- 239000002253 acid Substances 0.000 claims 1
- 150000001336 alkenes Chemical class 0.000 claims 1
- JRZJOMJEPLMPRA-UHFFFAOYSA-N olefin Natural products CCCCCCCC=C JRZJOMJEPLMPRA-UHFFFAOYSA-N 0.000 claims 1
- 239000011347 resin Substances 0.000 claims 1
- 229920005989 resin Polymers 0.000 claims 1
- 239000010409 thin film Substances 0.000 claims 1
- 238000001514 detection method Methods 0.000 abstract description 3
- 229920000139 polyethylene terephthalate Polymers 0.000 description 7
- 239000011265 semifinished product Substances 0.000 description 6
- 238000004519 manufacturing process Methods 0.000 description 4
- 239000000047 product Substances 0.000 description 4
- 230000001681 protective effect Effects 0.000 description 4
- 239000004925 Acrylic resin Substances 0.000 description 3
- 238000010586 diagram Methods 0.000 description 3
- 239000006185 dispersion Substances 0.000 description 3
- 239000000463 material Substances 0.000 description 3
- 239000004568 cement Substances 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000005259 measurement Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 229920006267 polyester film Polymers 0.000 description 2
- 239000002356 single layer Substances 0.000 description 2
- 229920002799 BoPET Polymers 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 238000002425 crystallisation Methods 0.000 description 1
- 230000008025 crystallization Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000013307 optical fiber Substances 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
- 238000010008 shearing Methods 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
- C09J7/00—Adhesives in the form of films or foils
- C09J7/20—Adhesives in the form of films or foils characterised by their carriers
- C09J7/29—Laminated material
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
- C09J2433/00—Presence of (meth)acrylic polymer
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
- C09J2467/00—Presence of polyester
- C09J2467/005—Presence of polyester in the release coating
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
- C09J2469/00—Presence of polycarbonate
- C09J2469/006—Presence of polycarbonate in the substrate
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Laminated Bodies (AREA)
Abstract
The present invention relates to a kind of high light transmittance screen protecting films, are suitable for fingerprinting operation equipment under optical panel, are multilayered structure, which is characterized in that the screen protecting film has upper PC film layers and lower PC film layers;It is bonded using OCA optical adhesive layers between PC film layers and lower PC film layers on this;The upper PC film layers, OCA optical adhesive layers and lower PC film layer threes it is compound after thickness h be less than 185 μm (microns), luminous flux φ be not less than 75lm (lumen);The upper surface of upper PC film layers is coated with wear-resisting hardened layer, and the lower surface of lower PC film layers is coated with highly-breathable bonding glass oxidant layer.Invention significantly improves the accuracy of detection of fingerprint.
Description
Technical field
The present invention relates to Screen Technology field, especially a kind of high light transmittance screen protecting film.
Background technology
Due to shielding the prevalence of concept comprehensively, no matter conventional fingerprint unlock is scraped using front or pressing mode unlocks, still
It is unlocked using the back side, can all influence the appearance of the smart machines such as mobile phone.Fingerprint recognition needs fingerprint collecting window, will certainly influence to shield
Accounting, therefore shield lower fingerprint technique and come into being.
The lower fingerprint of screen mainly has ultrasonic wave and optical plan at present.Optical plan is referred to is arranged optics below screen
Sensor identifies that the fingerprint lines of user, thinking are similar with the structure light scheme of apple by sending out near infrared light.Work as biography
When sensor is activated, sensor can illuminate the region of fingerprint recognition by the oled panel backlight on upper layer, then by reflection
Optical fiber is transferred in the sensor of bottom, and completes entire identification process.Existing market major part protective film is all using PET film as base
Film after sticking on this common protective film, because PET has crystallization and birefringent characteristic, causes light source reflection incomplete, fingerprint is known
It is not insensitive.
Invention content
A kind of high light transmission is provided technical problem to be solved by the present invention lies in the deficiencies in the prior art are overcome
Property screen protecting film, to adapt to shield the fingerprint recognition demand of lower fingerprinting operation equipment.
To solve aforementioned technical problem, present invention employs following technical schemes:
A kind of high light transmittance screen protecting film is suitable for fingerprinting operation equipment under optical panel, is multilayered structure, feature
It is, which has upper PC film layers and lower PC film layers;It is used between PC film layers and lower PC film layers on this
OCA optical adhesive layers bond;The upper PC film layers, OCA optical adhesive layers and lower PC film layer threes it is compound after thickness h be less than
185 μm (microns), luminous flux φ are not less than 75lm (lumen);The upper surface of upper PC film layers is coated with wear-resisting hardened layer, lower PC
The lower surface of film layer is coated with highly-breathable bonding glass oxidant layer.
The present invention can also be advanced optimized by following technical measures:
As advanced optimizing, the upper PC film layers and upper PC film layers are curtain coating PC film layers, and translucency is big
In 90%, mist degree is less than 1%, and crystallinity is less than 20%.The refractive index of the upper PC film layers and upper PC film layers is less than 1.6,
Phase difference is less than 20nm.The thickness of the upper PC film layers and upper PC film layers is 20 μm~90 μm.The OCA optical adhesive layers
Thickness is 5~20 μm.
As advanced optimizing, the lower surface of the bonding glass oxidant layer is bonded with PET release film layers, the PET release films
Layer can be with glass glue layer separation.
As advanced optimizing, the wear-resisting hardened layer upper surface is bonded with silicone protective layer, which can be with
Wear-resisting hardening layer separation.
As advanced optimizing, the highly-breathable bonding glass oxidant layer is silicone pressure sensitive glue-line, PU glue-lines or pressure gram
Power glue-line.
As advanced optimizing, the thickness of the highly-breathable bonding glass oxidant layer is 5~50 μm, to 180 ° of glass
Peeling force is 1~2000gf/25mm.
As advanced optimizing, the wear-resisting hardened layer is polyacrylic resin hardened layer, and thickness is 1~10 μm, and
Its water droplet angle is more than 105 degree, and case hardness is more than 500g 2H.
As a result of above technical scheme, the advantageous effects that the present invention has are as follows:
For the present invention by the way that two layers of PC film and one layer of OCA optical cement is arranged, the infrared light that fingerprint sensor is generated is first
After lower PC film layers are generated and reflected for the first time, then occur second by OCA optical adhesive layers and reflect, finally by upper PC films
Layer occurs third time and reflects, and since itself light transmittance of PC films and OCA are very high, but it is different to the refractive index of light, and light exists
Into OCA optical adhesive layers compensate and adjust after the refraction of lower PC films, then enter back into the refraction of PC film layers thus
Reach the single-layer polyester film smaller optical path difference thicker than thickness, reduce the interference of light, reduces the infrared of fingerprint under optical panel
Dispersion phenomenon is caused to influence optical finger print recognition speed after light pierce through the protection film.
Description of the drawings
It, below will be to specific in order to illustrate more clearly of the specific embodiment of the invention or technical solution in the prior art
Embodiment or attached drawing needed to be used in the description of the prior art are briefly described, it should be apparent that, in being described below
Attached drawing is some embodiments of the present invention, for those of ordinary skill in the art, before not making the creative labor
It puts, other drawings may also be obtained based on these drawings.
Fig. 1 is the overall structure diagram of the present invention.
Fig. 2 is that the light of the present invention propagates schematic diagram.
Fig. 3 is that the light of the prior art propagates schematic diagram.
Reference numeral:
PC film layers on 1.;2.OCA optical adhesive layers;3. lower PC film layers;4. wear-resisting hardened layer;5. bonding glass oxidant layer;
6. silicone protective layer;7.PET release film layers.
Specific implementation mode
In order to make the object, technical scheme and advantages of the embodiment of the invention clearer, below in conjunction with attached drawing to the present invention
It is described in further detail.The component of embodiments of the present invention, which are generally described and illustrated herein in the accompanying drawings can with it is various not
With configuration arrange and design.Based on the embodiments of the present invention, those of ordinary skill in the art are not making creativeness
The every other embodiment obtained under the premise of labour, shall fall within the protection scope of the present invention.
It should be noted that:Similar label and letter indicate similar terms in following attached drawing, therefore, once a certain Xiang Yi
It is defined, then it further need not be defined and explained in subsequent attached drawing in a attached drawing.
In the description of the present invention, it should be noted that term "center", "upper", "lower", "left", "right", "vertical",
The orientation or positional relationship of the instructions such as "horizontal", "inner", "outside" be based on the orientation or positional relationship shown in the drawings, merely to
Convenient for the description present invention and simplify description, do not indicate or imply the indicated device or element must have a particular orientation,
With specific azimuth configuration and operation, therefore it is not considered as limiting the invention.In addition, term " first ", " second ",
" third " is used for description purposes only, and is not understood to indicate or imply relative importance.
In the description of the present invention, it should be noted that unless otherwise clearly defined and limited, term " installation ", " phase
Even ", " connection " shall be understood in a broad sense, for example, it may be being fixedly connected, may be a detachable connection, or be integrally connected;It can
Can also be electrical connection to be mechanical connection;It can be directly connected, can also indirectly connected through an intermediary, Ke Yishi
Connection inside two elements.For the ordinary skill in the art, above-mentioned term can be understood at this with concrete condition
Concrete meaning in invention.
Below in conjunction with the accompanying drawings, it elaborates to some embodiments of the present invention.In the absence of conflict, following
Feature in embodiment can be combined with each other.
Embodiment one:
A kind of high light transmittance screen protecting film as shown in Figure 1 to Figure 2 is suitable for fingerprinting operation equipment under optical panel,
For multilayered structure, which is characterized in that the screen protecting film has upper PC film layers 1 and lower PC film layers 3;PC film layers 1 on this
It is bonded using OCA optical adhesive layers 2 between lower PC film layers 3;The upper PC film layers 1, OCA optical adhesive layers 2 and lower PC films
Thickness h after 3 three of layer are compound is less than 185 μm (microns), and luminous flux φ is not less than 75lm (lumen);Upper PC film layers 1 it is upper
Surface is coated with wear-resisting hardened layer 4, and the lower surface of lower PC film layers 3 is coated with highly-breathable bonding glass oxidant layer 5.
It should be noted that in the present embodiment, upper PC film layers 1, OCA optical adhesive layers 2 and lower 3 three of PC film layers are multiple
When thickness h after conjunction is 140 μm (micron), actual measurement luminous flux φ values are 81.5lm (lumen), when thickness h is 180 μm (micron),
Actual measurement luminous flux φ values are 80.9lm (lumen).
In the present embodiment, the upper PC film layers 1 and upper PC film layers 1 are curtain coating PC film layers, and translucency is big
In 90%, mist degree is less than 1%, and crystallinity is less than 20%.The refractive index of the upper PC film layers 1 and upper PC film layers 1 is less than
1.6, phase difference is less than 20nm.The thickness of the upper PC film layers 1 and upper PC film layers 1 is 20 μm~90 μm.The OCA optics
The thickness of glue-line 2 is 5~20 μm.
It should be noted that curtain coating PC is opposite to have better translucency with common PC, and crystallinity is lower, and its phase
Difference it is relatively low, usually in 20nm hereinafter, in the present embodiment curtain coating PC translucency be 95%, mist degree 6%, crystallinity 8%,
Refractive index 1.0, phase difference 15nm.In other embodiments, the respective value that the present invention can be selected to provide, still, light
The better material price of performance is more expensive, and economy is poorer, therefore need to consider economic index while considering properties of product,
Therefore applicant is it is not recommended that using expensive material manufacture this product, in order to avoid cause stockpiling of unsold product.
It should also be noted that, preferably 65 μm of the thickness of upper PC film layers 1 and upper PC film layers 1 in the present embodiment,
The thickness of OCA optical adhesive layers 2 is 10 μm, and the compound thickness of three is 140 μm.The difficulty of the smaller manufacture of thickness of PC film layers is got over
Greatly, intensity is lower, and the bigger manufacture of thickness is easy but optical property is relatively low.By detection, the thickness of PC film layers is not preferably greater than 90 μ
M is less than 20 μm.For OCA optical adhesive layers 2, thickness is up to 20 μm, can then lead to PC film layers 1 and lower PC greatly very much
Shearing dislocation is easy tod produce between film layer 3, it is minimum 5 μm, too thin, it is not easy to coat.
In the present embodiment, the lower surface of the bonding glass oxidant layer 5 is bonded with PET release film layers 7, the PET release films
Layer 7 can be detached with bonding glass oxidant layer 5.
In the present embodiment, 4 upper surface of wear-resisting hardened layer is bonded with silicone protective layer 6, which can be with
Wear-resisting hardened layer 4 detaches.
In the present embodiment, the highly-breathable bonding glass oxidant layer 5 is silicone pressure sensitive glue-line, in other embodiment
In the materials such as PU glue-lines or acryl glue-line may be used.
In the present embodiment, the thickness of the highly-breathable bonding glass oxidant layer 5 is 5~20 μm, specially 10 μm, right
180 ° of peeling forces of glass are 1~2000gf/25mm, specially 1000gf/25mm.
In the present embodiment, the wear-resisting hardened layer 4 is polyacrylic resin hardened layer, and thickness is 1~10 μm, specifically
It it is 5 μm, and its water droplet angle is more than 105 degree, specially 120 degree;Case hardness is more than 500g 2H, specially 800g 2H.
The specific production technology that the protective film of the present invention generates is as follows:
Step 1., which applies upper 1 upper surface of PC film layers, is covered with the wear-resisting generation semi-finished product of hardened layer 4 A of polyacrylic resin;
Step 2. applies in the lower surface of lower PC film layers 3 and is covered with organic pressure-sensitive gel layer generation semi-finished product B;
Step 3. is bonded generation after the lower surface of semi-finished product A applies and is covered with OCA optical adhesive layers 2 with the upper surface of semi-finished product B
Semi-finished product C;
Step 4. is bonded silicone protective layer 6 on the wear-resisting hardened layer 4 of semi-finished product C, is pasted on its silicone pressure sensitive glue-line
The protective film product that market can be sold finally is generated after closing PET release films.
In the present embodiment, as shown in Fig. 2, two layers of PC film and one layer of OCA optical cement, fingerprint sensor are generated red
After UV light first passes through the lower generation of PC film layers 3 refraction for the first time, then occur second by OCA optical adhesive layers 2 and reflect, finally leads to
It crosses PC film layers 1 and third time refraction occurs, since itself light transmittance of PC films and OCA are very high, but its refractive index to light
Difference, light are being compensated and are being adjusted into OCA optical adhesive layers 2 after the refraction of lower PC films, and it is thin then to enter back into PC
Film layer 1 reflects to reach the single-layer polyester film smaller optical path difference thicker than thickness, reduces the interference of light, reduces optical panel
Dispersion phenomenon is caused to influence optical finger print recognition speed after the infrared light pierce through the protection film of lower fingerprint.
The light propagation condition of the present invention and the prior art are compared, referring to figs. 2 and 3 as it can be seen that incident light is by this
The angle [alpha] that emergent light is generated after invention is obviously reduced compared with the angle beta of emergent light in prior art Fig. 3, i.e. α;β, it is seen that this
Invention substantially reduces the chromatic dispersion problem of light, improves translucent effect, and then improve fingerprint detection precision.
Finally it should be noted that:The above embodiments are only used to illustrate the technical solution of the present invention., rather than its limitations;To the greatest extent
Present invention has been described in detail with reference to the aforementioned embodiments for pipe, it will be understood by those of ordinary skill in the art that:Its according to
So can with technical scheme described in the above embodiments is modified, either to which part or all technical features into
Row equivalent replacement;And these modifications or replacements, various embodiments of the present invention technology that it does not separate the essence of the corresponding technical solution
The range of scheme.
Claims (10)
1. a kind of high light transmittance screen protecting film is suitable for fingerprinting operation equipment under optical panel, is multilayered structure, feature exists
In the screen protecting film has upper PC film layers and lower PC film layers;OCA is used on this between PC film layers and lower PC film layers
Optical adhesive layer bonds;The upper PC film layers, OCA optical adhesive layers and lower PC film layer threes it is compound after thickness h be less than 185 μm
(micron), luminous flux φ are not less than 75lm (lumen);The upper surface of upper PC film layers is coated with wear-resisting hardened layer, lower PC film layers
Lower surface be coated with highly-breathable bonding glass oxidant layer.
2. the high light transmittance screen protecting film according to claim, which is characterized in that the upper PC film layers and upper PC are thin
Film layer is curtain coating PC film layers, and translucency is more than 90%, and mist degree is less than 1%, and crystallinity is less than 20%.
3. high light transmittance screen protecting film according to claim 1 or 2, which is characterized in that upper PC film layers and upper
The refractive index of PC film layers is less than 1.6, and phase difference is less than 20nm.
4. high light transmittance screen protecting film according to claim 3, which is characterized in that the upper PC film layers and upper PC are thin
The thickness of film layer is 20 μm~90 μm.
5. high light transmittance screen protecting film according to claim 1 or 4, which is characterized in that the thickness of the OCA optical adhesive layers
Degree is 5~20 μm.
6. high light transmittance screen protecting film according to claim 1, which is characterized in that the following table of the bonding glass oxidant layer
Face is bonded with PET release film layers, which can be with glass glue layer separation.
7. high light transmittance screen protecting film according to claim 1, which is characterized in that the wear-resisting hardened layer upper surface is viscous
Conjunction has silicone protective layer, which can be with wear-resisting hardening layer separation.
8. high light transmittance screen protecting film according to claim 1, which is characterized in that the highly-breathable glass glue
Layer is silicone pressure sensitive glue-line, PU glue-lines or acryl glue-line.
9. high light transmittance screen protecting film according to claim 8, which is characterized in that the highly-breathable glass glue
The thickness of layer is 5~20 μm, and 180 ° of peeling forces to glass are 1~2000gf/25mm.
10. high light transmittance screen protecting film according to claim 1, which is characterized in that the wear-resisting hardened layer is poly- third
Olefin(e) acid hardening of resin layer, thickness are 1~10 μm, and its water droplet angle is more than 105 degree, and case hardness is more than 500g 2H.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810842045.1A CN108690517A (en) | 2018-07-27 | 2018-07-27 | A kind of high light transmittance screen protecting film |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810842045.1A CN108690517A (en) | 2018-07-27 | 2018-07-27 | A kind of high light transmittance screen protecting film |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108690517A true CN108690517A (en) | 2018-10-23 |
Family
ID=63850846
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810842045.1A Pending CN108690517A (en) | 2018-07-27 | 2018-07-27 | A kind of high light transmittance screen protecting film |
Country Status (1)
| Country | Link |
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| CN (1) | CN108690517A (en) |
Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109762479A (en) * | 2019-02-28 | 2019-05-17 | 东莞市赛越新材料科技有限公司 | Unlocked by fingerprint protective film and forming method under Multi-layer composite screen |
| CN110272695A (en) * | 2019-06-20 | 2019-09-24 | 新恒东薄膜材料（常州）有限公司 | A kind of screen protecting film and preparation method thereof can be used for screen unlocked by fingerprint |
| CN110312008A (en) * | 2019-06-24 | 2019-10-08 | Oppo广东移动通信有限公司 | Screen protecting film and electronic equipment |
| CN111320944A (en) * | 2018-12-17 | 2020-06-23 | 浙江欣麟新材料技术有限公司 | Photoelectric protective film for identifying fingerprints under screen and preparation method thereof |
| CN111320942A (en) * | 2018-12-17 | 2020-06-23 | 浙江欣麟新材料技术有限公司 | AB glue applied to mobile phone screen with fingerprint identification under screen and preparation method thereof |
| CN111320943A (en) * | 2018-12-17 | 2020-06-23 | 浙江欣麟新材料技术有限公司 | PET photoelectric protective film and preparation method thereof |
| CN111320941A (en) * | 2018-12-17 | 2020-06-23 | 浙江欣麟新材料技术有限公司 | High-strength screen lower fingerprint identification photoelectric protective film with self-repairing function on surface |
| CN111334209A (en) * | 2018-12-19 | 2020-06-26 | 浙江欣麟新材料技术有限公司 | High-strength photoelectric protective film for identifying fingerprints under screen and preparation method thereof |
| CN111334208A (en) * | 2018-12-19 | 2020-06-26 | 浙江欣麟新材料技术有限公司 | High-strength photoelectric protective film for identifying fingerprints under screen and preparation method thereof |
| CN111978878A (en) * | 2019-05-22 | 2020-11-24 | 深圳市戈比太科技有限公司 | Preparation method of AB glue, AB glue and toughened glass film |
| CN114671144A (en) * | 2020-12-27 | 2022-06-28 | 华为技术有限公司 | Screen protection film, preparation method thereof and electronic equipment |
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Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111320944A (en) * | 2018-12-17 | 2020-06-23 | 浙江欣麟新材料技术有限公司 | Photoelectric protective film for identifying fingerprints under screen and preparation method thereof |
| CN111320942A (en) * | 2018-12-17 | 2020-06-23 | 浙江欣麟新材料技术有限公司 | AB glue applied to mobile phone screen with fingerprint identification under screen and preparation method thereof |
| CN111320943A (en) * | 2018-12-17 | 2020-06-23 | 浙江欣麟新材料技术有限公司 | PET photoelectric protective film and preparation method thereof |
| CN111320941A (en) * | 2018-12-17 | 2020-06-23 | 浙江欣麟新材料技术有限公司 | High-strength screen lower fingerprint identification photoelectric protective film with self-repairing function on surface |
| CN111334209A (en) * | 2018-12-19 | 2020-06-26 | 浙江欣麟新材料技术有限公司 | High-strength photoelectric protective film for identifying fingerprints under screen and preparation method thereof |
| CN111334208A (en) * | 2018-12-19 | 2020-06-26 | 浙江欣麟新材料技术有限公司 | High-strength photoelectric protective film for identifying fingerprints under screen and preparation method thereof |
| CN109762479A (en) * | 2019-02-28 | 2019-05-17 | 东莞市赛越新材料科技有限公司 | Unlocked by fingerprint protective film and forming method under Multi-layer composite screen |
| CN111978878A (en) * | 2019-05-22 | 2020-11-24 | 深圳市戈比太科技有限公司 | Preparation method of AB glue, AB glue and toughened glass film |
| CN110272695A (en) * | 2019-06-20 | 2019-09-24 | 新恒东薄膜材料（常州）有限公司 | A kind of screen protecting film and preparation method thereof can be used for screen unlocked by fingerprint |
| CN110312008A (en) * | 2019-06-24 | 2019-10-08 | Oppo广东移动通信有限公司 | Screen protecting film and electronic equipment |
| CN114671144A (en) * | 2020-12-27 | 2022-06-28 | 华为技术有限公司 | Screen protection film, preparation method thereof and electronic equipment |
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