CN107976730A - A kind of diffusion barrier - Google Patents
A kind of diffusion barrier Download PDFInfo
- Publication number
- CN107976730A CN107976730A CN201610920594.7A CN201610920594A CN107976730A CN 107976730 A CN107976730 A CN 107976730A CN 201610920594 A CN201610920594 A CN 201610920594A CN 107976730 A CN107976730 A CN 107976730A
- Authority
- CN
- China
- Prior art keywords
- substrate
- diffusion
- diffusion layer
- diffusion barrier
- scattering particles
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Classifications
-
- 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
- G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
- G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
- G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour
- G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour based on liquid crystals, e.g. single liquid crystal display cells
- G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
- G02F1/1333—Constructional arrangements; Manufacturing methods
- G02F1/1335—Structural association of cells with optical devices, e.g. polarisers or reflectors
- G02F1/133504—Diffusing, scattering, diffracting elements
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- Physics & Mathematics (AREA)
- Chemical & Material Sciences (AREA)
- General Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Nonlinear Science (AREA)
- Dispersion Chemistry (AREA)
- Mathematical Physics (AREA)
- Crystallography & Structural Chemistry (AREA)
- Optical Elements Other Than Lenses (AREA)
Abstract
The invention discloses a kind of diffusion barrier; including substrate, protective layer and diffusion layer; there are some scattering particles in substrate and diffusion layer inner dispersion at the same time; outer surface of the diffusion layer away from substrate is set to away from the arc-shaped of substrate direction protrusion; the outer surface of diffusion layer is set to concavo-convex coarse structure; thus, it is possible to realize higher light penetration, diffusion is good, and diffusion barrier waterproof oxidation-protective effect is good.
Description
Technical field
The present invention relates to optical technical field, more particularly to a kind of diffusion barrier.
Background technology
Diffusion barrier, typically light pass through the diffusion layer using PET as base material, are worn in medium that can be different with refractive index
Cross so that light can correct light into uniform area light source to reach optics diffusion there is a phenomenon where many refractions, reflection and scattering
Effect.
The effect for correcting diffusion angle is primarily served in back light source structure, can increase light radiation area, but is reduced
The luminous intensity of unit area, that is, lower briliancy.Hou of the illuminating source through diffusion material diffusion, can become area bigger, uniformly
Degree is preferable, 2 secondary light sources of chroma stability.There is diffusing light, i.e. light can scatter on its surface, and light is soft
With uniformly disseminate out；In general, the basic structure of diffusion barrier is over the transparent substrate as PET two sides applies astigmatic optics particle.
Whether more LED backlight or traditional CCFL backlight are applied now, its light sent is a light
Source or line source, rather than area source.But pass through backlight module diffusion barrier, a uniform face light can be scattered in
Source.When light passes through diffusion layer, showed by optics such as the refraction that constantly occurs in the different medium of two kinds of refractive index, reflections
As so as to obtain the result of optics diffusion.
But existing diffusion barrier, light penetration is relatively low, and diffusion effect is not good enough.
Therefore, in view of the above-mentioned problems, be necessary to propose it is a kind of there is good light penetration, diffusion effect preferably expands
Dissipate film.
The content of the invention
In view of this, the present invention provides a kind of diffusion barrier, including：
Substrate, and the protective layer and diffusion layer being respectively arranged in the substrate both side surface；
Some scattering particles are dispersed with the substrate and diffusion layer, outer surface of the diffusion layer away from substrate is to remote
Raised from substrate direction is arc-shaped, and the outer surface of the diffusion layer is concavo-convex coarse structure.
As a further improvement on the present invention, the particle diameter of the scattering particles is 3~20 μm.
As a further improvement on the present invention, the scattering particles includes organic scattering particles and inorganic scattering particles.
As a further improvement on the present invention, the thickness of the diffusion barrier is 100~300 μm.
Compared with prior art, the beneficial effects of the invention are as follows：
Diffusion barrier in the present invention, including substrate and the protective layer and diffusion layer that are respectively arranged in substrate both side surface, and
Some scattering particles are dispersed with substrate and diffusion layer, and are to away from substrate direction by outer surface of the diffusion layer away from substrate
Raised is arc-shaped, and the outer surface of diffusion layer is set to concavo-convex coarse structure, and thus, light penetration is preferable, and diffusion effect is preferable.
Brief description of the drawings
In order to illustrate more clearly about the embodiment of the present invention or technical scheme of the prior art, below will be to embodiment or existing
There is attached drawing needed in technology description to be briefly described, it should be apparent that, drawings in the following description are only this
Some embodiments described in invention, for those of ordinary skill in the art, without creative efforts,
Other attached drawings can also be obtained according to these attached drawings.
Fig. 1 is the structure diagram of diffusion barrier in the present invention.
Embodiment
The technical solution in the embodiment of the present invention will be described in detail below, it is clear that described embodiment is only
Only it is part of the embodiment of the present invention, instead of all the embodiments.Based on the embodiments of the present invention, ordinary skill
Personnel's all other embodiments obtained on the premise of creative work is not made, belong to the model that the present invention protects
Enclose.
Join shown in Fig. 1, the diffusion barrier in the present invention, including：
Substrate 1, and the protective layer 2 being respectively arranged in 1 both side surface of substrate and diffusion layer 3；
There are some scattering particles in substrate 1 and 3 inner dispersion of diffusion layer, outer surface of the diffusion layer 3 away from substrate 1 is to remote
Raised from substrate direction is arc-shaped, and the outer surface of diffusion layer 3 is concavo-convex coarse structure.
Wherein, the material of protective layer 2 can select metal or nonmetal oxide, have waterproof, anticorrosive property, preferably
Protect diffusion barrier.
Outer surface of the diffusion layer 3 away from substrate 1 is to arc-shaped, the outer surface of diffusion layer 3 away from substrate direction protrusion
For concavo-convex coarse structure, such as can be raised round dot, cuboid, square, triangular pyramid etc., it is possible thereby to preferably scatter
Light.
The particle diameter of scattering particles is 3~20 μm, it is furthermore preferred that for 5-10 μm, is uniformly or non-uniformly distributed in substrate 1 and expands
Dissipate inside layer 3.
Scattering particles can include organic scattering particles and inorganic scattering particles, and inorganic scattering particles for example can be
SiO2、Al2O3、ZrO2, ZnO or TiO2In one or more.
The thickness of diffusion barrier is 100~300 μm in the present invention, can reach preferable light penetration, make dispersion effect
Well.
As can be seen from the above technical solutions, the present invention forms diffusion by substrate 1, protective layer 2 and the stacking of diffusion layer 3
Film, while have some scattering particles in substrate 1 and 3 inner dispersion of diffusion layer, outer surface of the diffusion layer 3 away from substrate 1 be set to
Away from the arc-shaped of substrate direction protrusion, the outer surface of diffusion layer 3 is set to concavo-convex coarse structure, thus the diffusion barrier in the present invention
It can realize higher light penetration, diffusion is good, and diffusion barrier waterproof oxidation-protective effect is good.
It is obvious to a person skilled in the art that the invention is not restricted to the details of above-mentioned one exemplary embodiment, Er Qie
In the case of without departing substantially from spirit or essential attributes of the invention, the present invention can be realized in other specific forms.Therefore, no matter
From the point of view of which point, the present embodiments are to be considered as illustrative and not restrictive, and the scope of the present invention is by appended power
Profit requires rather than described above limits, it is intended that all in the implication and scope of the equivalency of claim by falling
Change is included in the present invention.Any reference numeral in claim should not be considered as to the involved claim of limitation.
Moreover, it will be appreciated that although the present specification is described in terms of embodiments, not each embodiment is only wrapped
Containing an independent technical solution, this narrating mode of specification is only that those skilled in the art should for clarity
Using specification as an entirety, the technical solution in each embodiment can also be closed through appropriate, and forming those skilled in the art can
With the other embodiment of understanding.
Claims (4)
- A kind of 1. diffusion barrier, it is characterised in that including：Substrate, and the protective layer and diffusion layer being respectively arranged in the substrate both side surface；Some scattering particles are dispersed with the substrate and diffusion layer, outer surface of the diffusion layer away from substrate is to away from lining Raised arc-shaped in bottom direction, the outer surface of the diffusion layer is concavo-convex coarse structure.
- 2. diffusion barrier according to claim 1, it is characterised in that the particle diameter of the scattering particles is 3~20 μm.
- 3. diffusion barrier according to claim 1, it is characterised in that the scattering particles include organic scattering particles with it is inorganic Scattering particles.
- 4. diffusion barrier according to claim 1, it is characterised in that the thickness of the diffusion barrier is 100~300 μm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610920594.7A CN107976730A (en) | 2016-10-21 | 2016-10-21 | A kind of diffusion barrier |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610920594.7A CN107976730A (en) | 2016-10-21 | 2016-10-21 | A kind of diffusion barrier |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107976730A true CN107976730A (en) | 2018-05-01 |
Family
ID=62004450
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610920594.7A Withdrawn CN107976730A (en) | 2016-10-21 | 2016-10-21 | A kind of diffusion barrier |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107976730A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111505751A (en) * | 2020-06-16 | 2020-08-07 | 常州华威新材料有限公司 | Arch-shaped diffusion film for improving brightness and concealing atomization performance and preparation method thereof |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101118291A (en) * | 2006-08-04 | 2008-02-06 | 鸿富锦精密工业（深圳）有限公司 | Pervasion piece |
| TW200839303A (en) * | 2007-03-16 | 2008-10-01 | Toray Saehan Inc | Light-diffusing sheet for backlight unit |
| CN101424753A (en) * | 2007-11-02 | 2009-05-06 | 群康科技(深圳)有限公司 | Diffusing sheet, back light module unit and lcd device |
| CN102540291A (en) * | 2012-02-08 | 2012-07-04 | 宁波长阳科技有限公司 | Optical diffusion film and preparation method thereof |
| CN103345012A (en) * | 2013-07-31 | 2013-10-09 | 宁波激智科技股份有限公司 | Brightening diffusion film and preparation method thereof |
-
2016
- 2016-10-21 CN CN201610920594.7A patent/CN107976730A/en not_active Withdrawn
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101118291A (en) * | 2006-08-04 | 2008-02-06 | 鸿富锦精密工业（深圳）有限公司 | Pervasion piece |
| TW200839303A (en) * | 2007-03-16 | 2008-10-01 | Toray Saehan Inc | Light-diffusing sheet for backlight unit |
| CN101424753A (en) * | 2007-11-02 | 2009-05-06 | 群康科技(深圳)有限公司 | Diffusing sheet, back light module unit and lcd device |
| CN102540291A (en) * | 2012-02-08 | 2012-07-04 | 宁波长阳科技有限公司 | Optical diffusion film and preparation method thereof |
| CN103345012A (en) * | 2013-07-31 | 2013-10-09 | 宁波激智科技股份有限公司 | Brightening diffusion film and preparation method thereof |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111505751A (en) * | 2020-06-16 | 2020-08-07 | 常州华威新材料有限公司 | Arch-shaped diffusion film for improving brightness and concealing atomization performance and preparation method thereof |
| CN111505751B (en) * | 2020-06-16 | 2021-10-29 | 常州华威新材料有限公司 | Arch-shaped diffusion film for improving brightness and concealing atomization performance and preparation method thereof |
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| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| WW01 | Invention patent application withdrawn after publication |
Application publication date: 20180501 |
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| WW01 | Invention patent application withdrawn after publication |