CN109765646A - A kind of flexible cover plate - Google Patents
A kind of flexible cover plate Download PDFInfo
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- CN109765646A CN109765646A CN201811621255.4A CN201811621255A CN109765646A CN 109765646 A CN109765646 A CN 109765646A CN 201811621255 A CN201811621255 A CN 201811621255A CN 109765646 A CN109765646 A CN 109765646A
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- cover plate
- flexible cover
- flexible
- optical surface
- hardened layer
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Abstract
The invention discloses a kind of flexible cover plates, comprising: a flexible and transparent substrate 3 with the first optical surface and the second optical surface, first optical surface side is equipped with the first hardened layer 2, while first hardened layer 2 reaches glass effects far from the transmitance that an optical surface side of flexible and transparent substrate 3 is provided with the realization flexible cover plate of anti-reflecting layer 1, anti-reflective effect is realized.
Description
Technical field
The present invention relates to optical films, and in particular to flexible cover plate.
Background technique
In recent years, with the development of mobile device such as smart phone and tablet computer, need to be used in the substrate of display
Thinned and loss of weight.Glass or tempered glass are often used as having on the window or foreboard of the display for mobile device excellent
The material of mechanical property.However, glass is rushed since the weight of its own causes the weight of mobile device to increase, and due to external
It hits and there is a problem of breakage.
Therefore, substitute of the plastic resin as glass is being studied.Plastic resin composition is lightweight, but does not almost have
There is the risk of cracking, to be suitable for pursuing the trend of lighter mobile device.Particularly, in order to obtain with high rigidity and wear-resisting
The composition of characteristic, it has been proposed that for coating the composition of hard conating in support substrate.
Method as the surface hardness for improving hard conating, it may be considered that increase the method for the thickness of hard conating.In order to true
The surface hardness being enough instead of glass is protected, needs to realize certain thickness hard conating.However, the thickness with hard conating increases,
Surface hardness can increase, but increase the generation of fold and curling due to the cure shrinkage of hard conating, be easy to happen simultaneously
The cracking of coating and removing.Therefore, the practical application of this method is not easy to.
Meanwhile for the reason of the beautiful and function, wherein a part bending of display device or the flexible display distorted
Recently concern is caused, and this trend is particularly significant in mobile device such as smart phone and tablet computer.However, due to
Glass is not suitable for use in protecting the cover plate of such flexible display, it is therefore desirable to replace glass with plastic resin etc..However,
For this purpose, there is the film of the sufficient flexible high rigidity for showing glass horizontal simultaneously to be not easy to for production.
Summary of the invention
A kind of flexible cover plate 100 comprising: a flexible and transparent substrate 3 with the first optical surface and the second optical surface, institute
The first optical surface side is stated equipped with the first hardened layer 2, in an optics table of first hardened layer 2 far from flexible and transparent substrate 3
Face side is provided with anti-reflecting layer 1.While realizing that the transmitance of flexible cover plate reaches glass effects, anti-reflective effect is realized.
Further, the refractive index absolute difference range of first hardened layer 2 and the anti-reflecting layer 1 is 0.05-
The anti-reflection effect of flexible cover plate is further increased between 0.3.
Further, curved R3 in the flexible cover plate 100, excurvation R5 do not crack for 100,000 times, Young's modulus > 6.
Further, the material of first hardened layer 2 is selected from acrylic glue.
Further, the ranges of indices of refraction of first hardened layer 2 is 1.48-1.53；The thickness of the anti-reflecting layer 1
For 50-500nm, the ranges of indices of refraction of anti-reflecting layer 1 is 1.20-1.50.In visible wavelength section, the most sensitive area, that is, wave of people's naked eyes
It grows at 400-600nm, reflectivity reaches minimum, transmitance highest.
Further, the Component units for being capable of forming gap are contained in the anti-reflecting layer 1.
Further, the Component units are by the structure at least one of particle shape, threadiness, tabular shape
It constitutes.The constitution element of above-mentioned Component units includes selected from by least one of Si, Mg, Al, Ti, Zn and Zr group formed
Element.The structural body (Component units) for forming particle shape can be solid particle and be also possible to hollow-particle, specifically, selected from poly-
Silicone particles or Silicone particles, hollow silica nanoparticle or hollow silica nanometer gas with micropore
Ball, fibrous Component units are selected from the nanofiber that diameter is nano-scale, are specifically selected from cellulose nano-fibrous or oxygen
Change aluminium nanofiber.
Further, the flexible and transparent substrate 3 is selected from: equal benzene-type PI, soluble PI, polyamide-imides PAI and poly-
At least one of ether imines PEI.Purpose selected from above-mentioned clear polyimides be above-mentioned clear polyimides can it is long-term-
269 DEG C -280 DEG C indeformable, excellent insulation performances, good flame resistance.
Further, the composition of the acrylic glue includes:
Further, the acrylic monomers is selected from: double pentaerythritol methacrylate, tripropylene glycol acrylic acid
Ester, one of 1,6- glycol diacrylate or a variety of.
Further, it is 5-20%, two contractings that the double pentaerythritol methacrylate, which accounts for acrylic monomers total content ratio,
It is 1-10% that tripropylene glycol acrylate, which accounts for acrylic monomers total content ratio, and 1,6- glycol diacrylate accounts for acrylic acid list
Body total content ratio is 1-10%.
Further, the flexible and transparent substrate 3 includes with flowering structure:
G in formula indicates that 4 valence organic groups, A indicate divalent organic group.
Further, the organic group is selected from: non-ring type aliphatic group, ring type aliphatic group and aromatic group
At least one of group.Further, the aromatic group is selected from: monocyclic aromatic group, fused polycyclic fragrance
Race's group and there is 2 or more aromatic rings and the aromatic ring to be connected to each other directly or through linking group
At least one of non-condensed polycycle aromatic group.
Further, the ring type aliphatic group is selected from: there is fluorine system to take the ring type aliphatic group of 5 generation bases, have
The monocyclic aromatic group of fluorine system substituent group, the fused polycyclic aromatic group with fluorine system substituent group take with fluorine system
At least one of non-condensed polycycle aromatic group of Dai Ji.
Further the 4 valence organic group is selected from following radicals: saturation or unsaturated ring alkyl, saturation or unsaturated miscellaneous
Naphthenic base, heteroaryl, aryl alkyl, alkylaryl, miscellaneous alkyl aryl, has any 2 groups therein and they are straight at aryl
At least one of group made of being grounded or being connected to each other by linking group.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of embodiment.
Specific embodiment
In order to make the objectives, technical solutions, and advantages of the present invention clearer, with reference to embodiments, to invention into
Row is further described.It should be appreciated that the specific embodiments described herein are merely illustrative of the present invention, it is not used to limit
The fixed present invention.
Unless stated otherwise, solvent, reagent, coating method, technical parameter, the coating apparatus etc. that the present invention uses are this
Technical field Conventional solvents, reagent, method, parameter, equipment etc..
Embodiment 1
By the first hardening bath, (the transparent base layer polyamides that Kang get Xin Nei is coated on 80 μm of thickness for model KDX-DC010) is sub-
On first optical surface of amine 3 (South Korea Cologne), the first hardened layer 2 is formed in the first optical surface, it is separate in the first hardened layer 2
One optical surface of non-transparent flexible substrate 3 is coated with anti-reflecting layer 1.
The refractive index of first hardened layer is 1.50,
The refractive index 1.35 of the anti-reflecting layer 1.
Component of the Kang get Xin Nei for model KDX-DC010 are as follows: urethane acrylate content 20%, dipentaerythritol
Six acrylate contents 4%, tripropylene glycol acrylate content 4%, 1,6- glycol diacrylate content 4%；Draw
Send out the mixture content 1% of agent 184 and TPO (819)；The content 1% of levelling agent (BYK-3535).
Embodiment 2
Different from embodiment 1, the refractive index 1.48 of first hardened layer 1, in Kang get Xin Nei for model KDX-
Appropriate hollow silica is added in DC010 component for adjusting refractive index.
Embodiment 3
Different from embodiment 1, the refractive index 1.53 of first hardened layer 1, in Kang get Xin Nei for model KDX-
Appropriate zirconium oxide is added in DC010 component for adjusting refractive index.
Comparative example 1
Different from embodiment 1, anti-reflecting layer is not contained.
Comparative example 2
Different from embodiment 1, the refractive index of first hardened layer 1 is 1.62.
Comparative example 3
Different from embodiment 1, the refractive index 1.52 of the anti-reflecting layer.
The experimental result of embodiment 1-3 and comparative example 1-3 see the table below:
The optical testing instrument that the present invention selects is chromascope NDH2000N；Outer bend test is R5 (radius is 5 μm) 10
Ten thousand times, inner bending tests R3 (radius is 3 μm) 100,000 times；Rub resistance test, wear resistant instrument 1kg/2000 times, reflectivity is in visible light
Wavelength period 380-780nm test.
It should be pointed out that as described above is only to explain the preferred embodiments of the invention, it is right accordingly to be not intended to
The present invention is subject to any form of limitation, all to have any modification or change for making the related present invention under identical spirit
More, the scope that the invention is intended to protect should be all included in.
Claims (10)
1. a kind of flexible cover plate (100) characterized by comprising a flexibility with the first optical surface and the second optical surface is thoroughly
Bright substrate (3), first optical surface side are equipped with the first hardened layer (2), in first hardened layer (2) far from flexible and transparent
One optical surface side of substrate (3) is provided with anti-reflecting layer (1).
2. flexible cover plate (100) according to claim 1, which is characterized in that first hardened layer (2) and the anti-reflective
The refractive index absolute difference range of layer (1) is penetrated between 0.05-0.3.
3. flexible cover plate (100) according to claim 1, which is characterized in that the material of first hardened layer (2) is selected from
Acrylic glue.
4. flexible cover plate (100) according to claim 1, which is characterized in that curved R3 and outer in the flexible cover plate (100)
Curved R5, does not crack for 100,000 times, Young's modulus > 6.
5. flexible cover plate (100) according to claim 1, which is characterized in that the refractive index model of first hardened layer (2)
It encloses for 1.48-1.53；Anti-reflecting layer (1) ranges of indices of refraction is 1.20-1.50.
6. flexible cover plate (100) according to claim 1, which is characterized in that the anti-reflecting layer (1) with a thickness of 50-
500nm。
7. flexible cover plate (100) according to claim 1, which is characterized in that containing in the anti-reflecting layer (1) being capable of shape
At the Component units in gap.
8. flexible cover plate (100) according to claim 6, which is characterized in that the Component units are by with particle shape, fibre
The structure for tieing up at least one of shape, tabular shape is constituted.
9. flexible cover plate (100) according to claim 1, which is characterized in that the flexible and transparent substrate (3) is selected from:
Benzene-type PI, soluble PI, at least one of polyamide-imides PAI and polyimide PEI.
10. flexible cover plate (100) according to claim 3, which is characterized in that the composition of the acrylic glue includes:
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811621255.4A CN109765646A (en) | 2018-12-28 | 2018-12-28 | A kind of flexible cover plate |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811621255.4A CN109765646A (en) | 2018-12-28 | 2018-12-28 | A kind of flexible cover plate |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109765646A true CN109765646A (en) | 2019-05-17 |
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ID=66451696
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811621255.4A Pending CN109765646A (en) | 2018-12-28 | 2018-12-28 | A kind of flexible cover plate |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113066372A (en) * | 2021-03-24 | 2021-07-02 | 武汉华星光电半导体显示技术有限公司 | Foldable display module and foldable display device |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1183746A (en) * | 1995-05-09 | 1998-06-03 | 弗莱克斯产品公司 | Flexible plastic substrate with anti-reflection coating having low reflective color and method |
| US20060134400A1 (en) * | 2004-12-17 | 2006-06-22 | Nitto Denko Corporation | Hard-coated film and method of manufacturing the same |
| JP2008088309A (en) * | 2006-10-02 | 2008-04-17 | Nitto Denko Corp | Cured coating film, anti-reflection hard coating film using it, polarization plate and image display device |
| CN104817951A (en) * | 2015-05-26 | 2015-08-05 | 张家港康得新光电材料有限公司 | Anti-dazzle coating and anti-dazzle hardening film |
| CN210123477U (en) * | 2018-12-28 | 2020-03-03 | 张家港康得新光电材料有限公司 | Flexible cover plate |
-
2018
- 2018-12-28 CN CN201811621255.4A patent/CN109765646A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1183746A (en) * | 1995-05-09 | 1998-06-03 | 弗莱克斯产品公司 | Flexible plastic substrate with anti-reflection coating having low reflective color and method |
| US20060134400A1 (en) * | 2004-12-17 | 2006-06-22 | Nitto Denko Corporation | Hard-coated film and method of manufacturing the same |
| JP2008088309A (en) * | 2006-10-02 | 2008-04-17 | Nitto Denko Corp | Cured coating film, anti-reflection hard coating film using it, polarization plate and image display device |
| CN104817951A (en) * | 2015-05-26 | 2015-08-05 | 张家港康得新光电材料有限公司 | Anti-dazzle coating and anti-dazzle hardening film |
| CN210123477U (en) * | 2018-12-28 | 2020-03-03 | 张家港康得新光电材料有限公司 | Flexible cover plate |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113066372A (en) * | 2021-03-24 | 2021-07-02 | 武汉华星光电半导体显示技术有限公司 | Foldable display module and foldable display device |
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