CN106597584A - Anti-absorption diffusion barrier - Google Patents
Anti-absorption diffusion barrier Download PDFInfo
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- CN106597584A CN106597584A CN201611159428.6A CN201611159428A CN106597584A CN 106597584 A CN106597584 A CN 106597584A CN 201611159428 A CN201611159428 A CN 201611159428A CN 106597584 A CN106597584 A CN 106597584A
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- Prior art keywords
- diffusion
- adsorption
- composite bed
- hypothallus
- particle
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- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B5/00—Optical elements other than lenses
- G02B5/02—Diffusing elements; Afocal elements
- G02B5/0205—Diffusing elements; Afocal elements characterised by the diffusing properties
- G02B5/0236—Diffusing elements; Afocal elements characterised by the diffusing properties the diffusion taking place within the volume of the element
- G02B5/0242—Diffusing elements; Afocal elements characterised by the diffusing properties the diffusion taking place within the volume of the element by means of dispersed particles
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B5/00—Optical elements other than lenses
- G02B5/02—Diffusing elements; Afocal elements
- G02B5/0205—Diffusing elements; Afocal elements characterised by the diffusing properties
- G02B5/021—Diffusing elements; Afocal elements characterised by the diffusing properties the diffusion taking place at the element's surface, e.g. by means of surface roughening or microprismatic structures
- G02B5/0226—Diffusing elements; Afocal elements characterised by the diffusing properties the diffusion taking place at the element's surface, e.g. by means of surface roughening or microprismatic structures having particles on the surface
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- General Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Chemical & Material Sciences (AREA)
- Dispersion Chemistry (AREA)
- Optical Elements Other Than Lenses (AREA)
Abstract
The invention provides an anti-absorption diffusion barrier. The anti-absorption diffusion barrier comprises a substrate and at least a diffusion composite layer arranged at one side of the substrate, the diffusion composite layer comprises diffusion particles and anti-absorption particles, the anti-absorption particles form surface projections, and the height of the surface projections is 4-10 [mu]m. Gaps are formed on the surface of a display module during assembling through the intervention of the anti-absorption particles, the circulation of air and vapor is facilitated, the absorption of the diffusion barrier and a light guide plate is thoroughly improved, and the optical effect is improved.
Description
Technical field
The present invention relates to a kind of diffusion barrier, in particular to a kind of diffusion barrier of anti-absorption.
Background technology
Show with mobile communication equipment, laptop computer displays, desktop computer display and large scale liquid crystal electricity
The widely used display module depending in, also improves increasingly to the performance requirement of display module, is concentrated mainly on raising brightness and illumination
In the uniformity.Diffusion barrier is generally set in the assembling of display module above light guide plate, the diffusion uniformity of light is improved, therefore
Requirement to spreading film properties is particularly important.
But display module is in an assembling process, generally pastes or get stuck using frame, optical diffusion and light guide plate are direct
Distance is too near, and the incidence surface contact light guide plate for causing optical diffusion causes absorption, and forming Newton's ring affects optical effect, causes
Former material is wasted, row yielding is low.
The content of the invention
In order to overcome existing optical diffusion optics easily to adsorb the problem of light guide plate, the present invention provides a kind of anti-adsorption and diffusion
Film, due to the intervention of anti-granule for absorbing, surface forms space in the assembling of display module, is easy to the circulation of air and aqueous vapor,
So as to thoroughly improve absorption.Specifically include a base material；At least one diffusion composite bed, is arranged at the side of the base material, the expansion
Scattered composite bed includes diffusion particle and anti-granule for absorbing, and the anti-granule for absorbing forms rat, the height of the rat
Spend for 4-10 μm.
Further, the height of the rat is 4-6 μm.
Further, the diffusion composite bed includes the expansion of one first hypothallus and at least partially embedded first hypothallus
Shot forms the anti-granule for absorbing of projection with first substrate layer surface is at least partly separated out.
Further, the thickness of first hypothallus is 10-20 μm
Further, the diffusion composite bed includes a diffusion layer, and an anti-adsorption layer, the diffusion layer is arranged at base material
Side, the anti-adsorption layer is arranged at side of the diffusion layer away from base material, and the diffusion layer is including one the 3rd hypothallus and at least
The diffusion particle of the 3rd hypothallus is partially submerged into, the anti-adsorption layer includes one the 4th hypothallus and at least partly precipitation
Substrate layer surface forms the described anti-granule for absorbing of projection.
Further, the thickness of the 3rd hypothallus in the diffusion composite bed is 3-10 μm, the thickness of the 4th hypothallus
For 10-20 μm
Further, the particle diameter of the diffusion particle in the diffusion composite bed is 3-8 μm.
Further, the particle diameter of the anti-granule for absorbing in the diffusion composite bed is 10-20 μm.
Further, the diffusion composite bed is 0.3-0.4 μm away from the roughness Ra value of base material side.
Further, the base material further includes a diffusion composite bed or a layers of prisms or one away from the side of diffusion composite bed
Diffusion layer.
Description of the drawings
The Figure of description for constituting the part of the present invention is used for providing a further understanding of the present invention, and the present invention's shows
Meaning property embodiment and its illustrated for explaining the present invention, does not constitute inappropriate limitation of the present invention.In the accompanying drawings：
Fig. 1 is the generalized section of the first embodiment of anti-adsorption and diffusion film of the invention；
Fig. 2 is enlarged drawing at the section A of the first embodiment of anti-adsorption and diffusion film of the invention
Fig. 3 is the generalized section of the second embodiment of anti-adsorption and diffusion film of the invention；
Fig. 4 is the generalized section of the 3rd embodiment of anti-adsorption and diffusion film of the invention；
Fig. 5 is the generalized section of the fourth embodiment of anti-adsorption and diffusion film of the invention；
Fig. 6 is the generalized section of the 5th embodiment of anti-adsorption and diffusion film of the invention；
Fig. 7 is enlarged drawing at the section B of the 5th embodiment of anti-adsorption and diffusion film of the invention
Fig. 8 is the generalized section of the sixth embodiment of anti-adsorption and diffusion film of the invention；
Fig. 9 is the generalized section of the 7th embodiment of anti-adsorption and diffusion film of the invention
Figure 10 is the generalized section of the 8th embodiment of anti-adsorption and diffusion film of the invention
Specific embodiment
It should be noted that in the case where not conflicting, the embodiment and the feature in embodiment in the present invention can phase
Mutually combination.Below with reference to the accompanying drawings and in conjunction with the embodiments describing the present invention in detail.
In order that those skilled in the art more fully understand the present invention program, below in conjunction with the embodiment of the present invention
Accompanying drawing, is clearly and completely described to the technical scheme in the embodiment of the present invention, it is clear that described embodiment is only
The embodiment of a part of the invention, rather than the embodiment of whole.Based on the embodiment in the present invention, ordinary skill people
The every other embodiment that member is obtained under the premise of creative work is not made, should all belong to the model of present invention protection
Enclose.
Fig. 1 is the generalized section of the first embodiment of anti-adsorption and diffusion film of the invention, and Fig. 2 is enlarged drawing at the A of its local.
First embodiment of the invention provides a kind of anti-adsorption and diffusion film, including a base material 1 and at least one diffusion composite bed 2, is arranged at
The side of the base material 1, the diffusion composite bed 2 includes one first hypothallus 23, and at least partially embedded first matrix
The diffusion particle 24 and anti-granule for absorbing 25 of layer, the anti-granule for absorbing at least partly separates out the surface of the first hypothallus 23, in institute
State anti-adsorption and diffusion film and form projection away from the surface of base material side, the height H of the rat is 4-10 μm, preferred 4-6 μ
m.Again diffusion barrier is 0.3-0.4 μm, preferably 0.35 μm away from the surface roughness Ra value of base material side for anti-suction.The present invention is due to anti-
The intervention of granule for absorbing, separates out substrate layer surface and forms projection, in the assembling of display module, with adjacent devices such as light guide plate 8
Surface forms space, is easy to the circulation of air and aqueous vapor, so as to thoroughly improve absorption.
In specific implementation process, the base material 1 is selected from following material：It is polyethylene terephthalate (PET), poly- right
The not limited to this such as benzene dicarboxylic acid butanediol ester (PBT), PEN (PEN) or its co-polymerization modified polyester.It is described
The material that first hypothallus 23 contains is selected from resinae materials such as acrylic resin, polyurethane resin or propylene polyalcohols resins
Material, the diffusion particle 24 is selected from methyl acrylate particle (PMMA), Merlon (PC), polystyrene (PS), PBMA particles
Deng material, not limited to this, and the particle diameter of the diffusion particle 24 are 3-8 μm, preferably 5 μm.The anti-granule for absorbing 25 is selected to be had
Machine silicon particle, polystyrene particle, Merlon particle, organosiloxane particle, calcium carbonate particle, TiO 2 particles etc.,
Not limited to this, and the particle diameter of the anti-granule for absorbing 25 is 10-20 μm, preferably 10,15 μm.The thickness of first hypothallus is
10-20 μm, when hypothallus within this range, good diffusion effect can be played.
In practical operation, by the resinous material and the diffusion particle 24 and anti-granule for absorbing 25, related solvents, help
Agent etc. forms mixed liquor, and mixed liquor is coated into the base material side by way of roll shaft, by the control to temperature, makes molten
There is volatilization phenomenon in agent, because molecular motion drives anti-granule for absorbing 25 to separate out the surface of the first hypothallus 23 in volatilization process, such as
This dry out solvent makes the thermosetting of the first hypothallus 23, the temperature and time for adjusting drying can be passed through in the process, so as to adjust
Evaporation rate, further determines the precipitation height H of anti-granule for absorbing 25 and the surface roughness Ra value of diffusion composite bed 2.By institute
Anti- adsorption and diffusion film is stated with during the assembling of light guide plate 8, diffusion composite aspect spreads the height H of composite bed rat to light guide plate 8
Anti- adsorbed film of the invention is determined in the spacing of light guide plate, so as to determine the anti-adsorption effect of anti-adsorption and diffusion film.When surface it is thick
When preferably 0.35 μm of rugosity Ra value, rat height H are preferably 4-6 μm, anti-adsorption and diffusion film of the invention was with light guide plate 8 both
Appropriate spacing can be reached, is had and is played good optics diffusion effect.Meanwhile, diffusion particle 24 and anti-granule for absorbing 25 are mixed in together
In one hypothallus, processing procedure operation is simplified, reduce cost.
Fig. 3 is the generalized section of the second embodiment of anti-adsorption and diffusion film of the invention.The second embodiment of the present invention is carried
A kind of anti-adsorption and diffusion film is supplied, its feature is similar to first embodiment, difference is away from diffusion composite bed 2 in the base material 1
Side one diffusion layer 6 is set, the diffusion layer 6 includes one first hypothallus 63 and diffusion particle 64, the diffusion particle choosing
From 64 selected from materials such as methyl acrylate particle (PMMA), Merlon (PC), polystyrene (PS), PBMA particles, it is not limited to
This, and the particle diameter of the diffusion particle 64 is 3-8 μm, preferably 5 μm.When the both sides of base material 1 are respectively provided with diffusion particle, light is by leading
Tabula rasa sends and is spread through twice, preferably improves optics diffusion effect.
Fig. 4 is the generalized section of the 3rd embodiment of anti-adsorption and diffusion film of the invention.The third embodiment of the present invention is carried
A kind of anti-adsorption and diffusion film is supplied, its feature is similar to first embodiment, difference is away from diffusion composite bed 2 in the base material 1
Side another diffusion composite bed 2 ' is set, another diffusion composite bed 2 ' is including one second hypothallus 23 ' and at least partly
The diffusion particle 24 ' and anti-granule for absorbing 25 ' of embedded second hypothallus 23 '.The preparation method ginseng of another diffusion composite bed 2 '
According to a kind of preparation method of diffusion composite bed 2 of embodiment.The present embodiment away from light guide plate side arrange diffusion particle 24 ' and
Anti- granule for absorbing 25 ', the effect except playing optics diffusion twice, while in the assembling process of display module, due to diffusion
Film often assembles other species bloomings away from the side Jing of light guide plate, when the anti-adsorption and diffusion film of the present embodiment is in other species light
When learning film assembling, not only improve the absorption problem between anti-adsorption and diffusion film and light guide plate, also improve and other species bloomings
Between absorption problem, improve optical effect.
Fig. 5 is the generalized section of the fourth embodiment of anti-adsorption and diffusion film of the invention.The fourth embodiment of the present invention is carried
A kind of anti-adsorption and diffusion film is supplied, its feature is similar to first embodiment, difference is the base material 1 away from diffusion composite bed 2
Side arranges a layers of prisms 9, and in the prior art, the assembling of display module generally needs being superimposed for diffusion barrier and increment film,
In enforcement, diffusion composite bed is set in the side of base material 1, opposite side arranges layers of prisms, diffusion function and incremental function are collected simultaneously
In in a substrate carrier, while have anti-adsorption function, it will be apparent that reduce product thickness, while improving optical effect.
Fig. 6 is the generalized section of the 5th embodiment of anti-adsorption and diffusion film of the invention, and Fig. 7 is enlarged drawing at the B of its local.
The fifth embodiment of the present invention provides a kind of anti-adsorption and diffusion film, including a base material 1 and at least one diffusion composite bed 2, arranges
In the side of the base material 1, the diffusion composite bed 2 includes a diffusion layer 6, and an anti-adsorption layer 7, the diffusion layer 6 is arranged at
The side of base material 1, the anti-adsorption layer is arranged at side of the diffusion layer 6 away from base material 1, and the diffusion layer 6 includes one the 3rd matrix
Layer 63, and the diffusion particle 64 of at least partially embedded 3rd hypothallus 63；The anti-adsorption layer 7 includes one the 4th hypothallus
73 and anti-granule for absorbing 75, the anti-granule for absorbing 75 at least partly separates out the surface of the 4th hypothallus 73, away from base material side
Surface form projection, the height H of the rat is 4-10 μm, preferred 4-6 μm, anti-to inhale multiple diffusion barrier away from base material side
Surface roughness Ra value be 0.3-0.4 μm, preferably 0.35 μm.The present invention separates out hypothallus due to the intervention of anti-granule for absorbing
Surface forms projection, in the assembling of display module, with the adjacent devices such as surface of light guide plate 8 space is formed, and is easy to air and water
The circulation of gas, so as to thoroughly improve absorption.
In specific implementation process, the base material 1 is selected from following material：It is polyethylene terephthalate (PET), poly- right
Benzene dicarboxylic acid butanediol ester (PBT), PEN (PEN) or its co-polymerization modified polyester.3rd hypothallus
63rd, the material that the 4th hypothallus 73 contains is selected from resinaes such as acrylic resin, polyurethane resin or propylene polyalcohols resins
Material；The thickness of the 3rd hypothallus 63 is 3-10 μm, 10-20 μm of the thickness of the 4th hypothallus；The diffusion particle 64 is selected from third
Material, not limited to this, and the expansions such as e pioic acid methyl ester particle (PMMA), Merlon (PC), polystyrene (PS), PBMA particles
The particle diameter of shot 64 is 3-8 μm, preferably 5 μm.The anti-granule for absorbing 75 is selected from organic silicon particle, polystyrene particle, gathers
Carbonic ester particle, organosiloxane particle, calcium carbonate particle, TiO 2 particles etc., not limited to this, and the anti-granule for absorbing
75 particle diameter is 10-20 μm, preferably 10 μm, 15 μm.
In practical operation, the resinous material and the diffusion particle 64, related solvents, auxiliary agent etc. are formed and is mixed
Liquid, the base material side is coated by way of roll shaft by mixed liquor, by the control to temperature, makes solvent that volatilization to occur existing
Dry the 3rd hypothallus 63 as, heat cure and form diffusion layer 6, by the resinous material and the anti-granule for absorbing 75,
Related solvents, auxiliary agent etc. form mixed liquor, and the mixed liquor is coated into the diffusion layer 6 away from base material 1 by way of roll shaft
Side, by the control to temperature, make solvent that volatilization phenomenon to occur, because molecular motion drives anti-absorption grain in volatilization process
Son 75 separates out the surface of the 4th hypothallus 73, and such dry out solvent makes the thermosetting of the 4th hypothallus 73, in the process can be by adjusting
The temperature and time of section drying, so as to adjust evaporation rate, further determines the precipitation height H of anti-granule for absorbing 75 and anti-absorption
The surface roughness Ra value of layer 7.During due to the anti-adsorption and diffusion film and light guide plate 8 being assembled, diffusion composite bed 2 is towards leaded light
Plate 8, the raised height H of anti-adsorption and diffusion layer surface determines the spacing of anti-adsorption and diffusion film of the invention and light guide plate, so as to certainly
The anti-adsorption effect of fixed anti-adsorption and diffusion film.When surface roughness Ra value be preferably 0.35 μm, rat height H be preferably 4-
When 6 μm, anti-adsorption and diffusion film of the invention can reach appropriate spacing with light guide plate 8, have and play good optics diffusion effect.
Meanwhile, diffusion layer 6 and the layering of anti-adsorption layer 7 are arranged, and can make incident light through the scattering of two levels, reach preferably diffusion effect
Really.
Fig. 8 is the generalized section of the sixth embodiment of anti-adsorption and diffusion film of the invention.The sixth embodiment of the present invention is carried
A kind of anti-adsorption and diffusion film is supplied, its feature is similar to the 5th embodiment, difference is away from diffusion composite bed 2 in the base material 1
Side one diffusion layer 6 ' is set, the diffusion layer 6 ' includes one the 3rd hypothallus 63 ' and diffusion particle 64 ', the diffusion grain
Son selected from 64 ' selected from materials such as methyl acrylate particle (PMMA), Merlon (PC), polystyrene (PS), PBMA particles, no
It is limited to this, and the particle diameter of the diffusion particle 64 ' is 3-8 μm, preferably 5 μm.When the both sides of base material 1 are respectively provided with diffusion particle, light
Line is sent by light guide plate and is spread through twice, preferably improves optics diffusion effect.
Fig. 9 is the generalized section of the 7th embodiment of anti-adsorption and diffusion film of the invention.The seventh embodiment of the present invention is carried
A kind of anti-adsorption and diffusion film is supplied, its feature is similar to the 5th embodiment, difference is away from diffusion composite bed 2 in the base material 1
Side arrange it is another diffusion composite bed 2 ', it is described it is another diffusion composite bed 2 ' including a diffusion layer 6 ', an anti-adsorption layer 7 '.Should
The preparation method that the preparation method of another diffusion composite bed 2 ' spreads composite bed 2 with reference to embodiment five.Diffusion layer in the present embodiment
6 ' and anti-adsorption layer 7 ', the effect except playing optics diffusion twice, while in the assembling process of display module, due to diffusion
Film often assembles other species bloomings away from the side Jing of light guide plate, when the anti-adsorption and diffusion film of the present embodiment is in other species light
When learning film assembling, not only improve the absorption problem between anti-adsorption and diffusion film and light guide plate, also improve and other species bloomings
Between absorption problem, improve optical effect.
Figure 10 is the generalized section of the 8th embodiment of anti-adsorption and diffusion film of the invention.The eighth embodiment of the present invention is carried
A kind of anti-adsorption and diffusion film is supplied, its feature is similar to the 5th embodiment, difference is the base material 1 away from diffusion composite bed 2
Side arranges a layers of prisms 9, and in the prior art, the assembling of display module generally needs diffusion barrier and increment film, in this enforcement,
Diffusion composite bed is set in the side of base material 1, opposite side arranges layers of prisms, diffusion function and incremental function are concentrated on into one simultaneously
In substrate carrier, while having anti-adsorption function, it will be apparent that the thickness of product is reduced, while improving optical effect.
The invention provides a kind of anti-adsorption and diffusion film, due to the intervention of anti-granule for absorbing, in the assembling of display module
Surface forms space, is easy to the circulation of air and aqueous vapor, so as to thoroughly improve absorption.By actual temp parameter in manufacturing process
Setting, change the surface roughness Ra value of the anti-adsorption and diffusion film, and the height H of rat, so as to more preferably ensure show
The package thickness of module and improve optics diffusion effect.
It should be noted that specific embodiment is only the explanation to technical solution of the present invention, should not be managed
Solution is the restriction to technical solution of the present invention, any only to make what local changed using the present invention essence content of the invention, Reng Yingluo
Enter in protection scope of the present invention.
Claims (10)
1. a kind of anti-adsorption and diffusion film, it is characterised in that：Including
One base material；
At least one diffusion composite bed, is arranged at the side of the base material, and the diffusion composite bed includes diffusion particle and anti-absorption
Particle, the anti-granule for absorbing forms rat, and the height of the rat is 4-10 μm.
2. anti-adsorption and diffusion film according to claim 1, it is characterised in that：The height of the rat is 4-6 μm.
3. anti-adsorption and diffusion film according to claim 1, it is characterised in that：The diffusion composite bed includes one first matrix
The diffusion particle of layer and at least partially embedded first hypothallus and at least partly separate out first substrate layer surface and form projection
Anti- granule for absorbing.
4. anti-adsorption and diffusion film according to claim 3, it is characterised in that：The thickness of first hypothallus is 10-20 μ
m。
5. anti-adsorption and diffusion film according to claim 1, it is characterised in that：The diffusion composite bed includes a diffusion layer,
One anti-adsorption layer, the diffusion layer is arranged at the side of base material, and the anti-adsorption layer is arranged at side of the diffusion layer away from base material,
The diffusion layer includes the diffusion particle of one the 3rd hypothallus and at least partially embedded 3rd hypothallus, the anti-absorption
Layer includes one the 4th hypothallus and at least partly separates out the described anti-granule for absorbing that substrate layer surface forms projection.
6. anti-adsorption and diffusion film according to claim 5, it is characterised in that：The 3rd hypothallus in the diffusion composite bed
Thickness be 3-10 μm, the thickness of the 4th hypothallus is 10-20 μm.
7. anti-adsorption and diffusion film according to claim 1, it is characterised in that：Diffusion particle in the diffusion composite bed
Particle diameter is 3-8 μm.
8. anti-adsorption and diffusion film according to claim 1, it is characterised in that：Anti- granule for absorbing in the diffusion composite bed
Particle diameter be 10-20 μm.
9. anti-adsorption and diffusion film according to claim 1, it is characterised in that the diffusion composite bed is away from base material side
Roughness Ra value is 0.3-0.4 μm.
10. anti-adsorption and diffusion film according to claim 1, it is characterised in that side of the base material away from diffusion composite bed
Further include a diffusion composite bed or a layers of prisms or a diffusion layer.
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| CN201611159428.6A CN106597584A (en) | 2016-12-15 | 2016-12-15 | Anti-absorption diffusion barrier |
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| CN201611159428.6A CN106597584A (en) | 2016-12-15 | 2016-12-15 | Anti-absorption diffusion barrier |
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Cited By (3)
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| CN108107491A (en) * | 2017-11-29 | 2018-06-01 | 宁波激智科技股份有限公司 | A kind of optical film of anti-moisture absorption |
| CN111108512A (en) * | 2019-11-20 | 2020-05-05 | 深圳市汇顶科技股份有限公司 | Fingerprint recognition device under screen, fingerprint recognition system under screen, backlight module and liquid crystal display screen |
| CN111983738A (en) * | 2019-05-24 | 2020-11-24 | 宁波激智科技股份有限公司 | Dimming layer, light homogenizing component and anti-adsorption dimming layer |
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