CN106772724A - A kind of optical diffusion of anti scuffing - Google Patents
A kind of optical diffusion of anti scuffing Download PDFInfo
- Publication number
- CN106772724A CN106772724A CN201611250506.3A CN201611250506A CN106772724A CN 106772724 A CN106772724 A CN 106772724A CN 201611250506 A CN201611250506 A CN 201611250506A CN 106772724 A CN106772724 A CN 106772724A
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- China
- Prior art keywords
- diffusion
- particle
- coating
- optical
- base material
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Classifications
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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
- G02B5/021—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
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B1/00—Optical elements characterised by the material of which they are made; Optical coatings for optical elements
- G02B1/10—Optical coatings produced by application to, or surface treatment of, optical elements
- G02B1/14—Protective coatings, e.g. hard coatings
Abstract
The invention discloses a kind of optical diffusion of anti scuffing, it is related to optics technical field of membrane.The optical diffusion includes base material and upper diffusion coating, lower diffusion coating, and diffusion glue-line and diffusion particle are included in diffusion coating and lower diffusion coating on this.Diffusion particle in the upper diffusion coating includes the small particle diffusion particle that average grain diameter is 2 10 μm and the big particle diameter diffusion particle that average grain diameter is 20 30 μm, diffusion particle in the upper diffusion coating can be after stress along power direction compressed, and after external force is removed reply.Described lower diffusion coating includes 5 10 μm of diffusion particle, the non-touching lower surface for being dispersed in base material between the lower diffusion particle.The diffusion particle of the optical diffusion that the present invention is provided has certain by compressibility, diffusion particle will not be scraped off because of friction, it is scraped off so as to advantageously reduce optical diffusion, it is to avoid the phenomenon for being scraped off using large area particle when external force is subject to after resin enhancers in the prior art.
Description
Technical field
The present invention relates to optics technical field of membrane, and in particular to a kind of optical diffusion of anti scuffing.
Background technology
Optical diffusion is widely used in liquid crystal display device, advertising lamp box, lighting device, mobile communication equipment button etc. and needs
Want on the device of light source to provide Uniform Illumination.
Liquid crystal display device is fast-developing in recent years, and in mobile communication equipment display device, notebook computer, platform
It is used widely in formula computer and large-size liquid crystal television.5-7 optical thin film typically is used in liquid crystal display device,
Use of the optical diffusion in lighting device increasingly increases, and this causes liquid crystal display device and lighting device to optical diffusion
Requirement increase increasingly, the research of optical diffusion is concentrated mainly at present in raising brightness.
But optical diffusion during use except needing to be outside one's consideration with highlighted, in addition it is also necessary to stronger anti-scratch
Hinder performance to ensure that film is not scraped off or abrades in use.Specifically, optical diffusion membrane is in use
Need the size required for first cutting into device, and the meeting during being cut by being die cut factory of most of optical diffusions
Rubbed by conveyer belt；Optical diffusion after cutting also easily is scraped in packaging process by the hand of operative employee；In addition optics
Also the friction between film and film is susceptible in diffusion barrier transportation after packaging, various frictions cause film appearance
It is damaged, so that qualification rate reduction of the film in client.Optical diffusion in other lighting device is in wipe clean
When wiping, film is likely to be scraped off or abrade, so as to influence to use.
For problem above, the resin for mainly being used by composition in the diffusion coating for increasing optical diffusion at present
The intensity of adhesive, i.e., improve the scratch resistance of optical diffusion using resin enhancers.But the diffusion of optical diffusion
Diffusion particle is also there is in coating, and most of diffusion particles expose diffusion coating, if simply reinforced resin is certainly
The intensity of body, does not ensure that the adhesive strength between resin and particle, so during the use of film, can still result in light
The diffusion particle learned in diffusion barrier diffusion coating comes off or scratches, so as to influence the use of optical diffusion.It is of the prior art
The diffusion particle of single particle size or narrow dispersion particle diameter is used mostly in optical diffusion diffusion coating so that film is by outer
The masterpiece used time, when such as by friction or scraping, diffusion particle is easily caused by large area scratch or is come off, so as to cause optics to expand
Film is dissipated by large area scratch.
Therefore, the scratch resistance of optical diffusion how is further improved, optical diffusion is reduced by outer masterpiece
Caused by used time diffusion particle is by large area scratch or comes off, as this area problem demanding prompt solution.
The content of the invention
In view of the shortcomings of the prior art, the invention provides a kind of optical diffusion of anti scuffing so that optical diffusion
The phenomenon that will not be scraped off during use, effectively reduces optical diffusion in use because scratch causes
It is bad.
To realize object above, the present invention is achieved by the following technical programs：A kind of optical diffusion of anti scuffing,
Including base material and upper diffusion coating, lower diffusion coating, diffusion glue-line and diffusion are included in diffusion coating and lower diffusion coating on this
Particle.
Further, the direction that the diffusion particle in the upper diffusion coating can be after stress along power is compressed, and outside
Power is replied after removing.
Further, the diffusion particle in the upper diffusion coating includes that average grain diameter spreads grain for 2-10 μm of small particle
Son and the big particle diameter diffusion particle that average grain diameter is 20-30 μm；
Further, the diffusion bondline thickness of the upper diffusion coating is 15-25 μm；Wherein, diffusion particle is filled in expansion
Dissipate in glue-line, the diffusion particle protrusion of the big particle diameter in part spreads film surface.
Further, the diffusion particle in the upper diffusion coating is spherical；
Further, described optical diffusion, its lower diffusion coating includes 5-10 μm of diffusion particle, the lower diffusion
The non-touching lower surface for being dispersed in base material between particle.
The thickness of the lower diffusion coating is the maximum sized 1/3-7/8 of lower diffusion particle.
Further, the diffusion particle in the upper diffusion coating, lower diffusion coating be silicon compound, silicone resin,
One kind or at least two mixture in polystyrene, polymethyl methacrylate.
Further, the optical diffusion of anti scuffing as described above, wherein the base material can be poly terephthalic acid second
Diol ester, glass, makrolon, polymethyl methacrylate or polystyrene.
Further, the thickness of the base material is 50-250 μm.
Beneficial effects of the present invention：Compared with prior art, the invention provides a kind of optical diffusion of anti scuffing,
The diffusion particle that can be compressed is employed in the diffusion coating of upper and lower surface, so when film is acted on by external force, such as quilt
Friction or when scraping, because diffusion particle can be compressed so that optical diffusion top layer has certain by compressibility, Bu Huiyin
Rub and scraped off diffusion particle.It is scraped off so as to advantageously reduce optical diffusion.Avoid increasing using resin in the prior art
The phenomenon that large area particle is scraped off when being subject to external force after strong agent；
On the other hand, the diffusion particle of different average grain diameters is employed in upper diffusion coating, it is to avoid adopt in the prior art
Particle with single particle size or narrow dispersion particle diameter is caused when being acted on by external force as the diffusion film of diffusion particle
Diffusion particle is by large area scratch or comes off, and improves the scratch resistance of optical diffusion.
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
The accompanying drawing to be used needed for having technology description is briefly described, it should be apparent that, drawings in the following description are only this
Some embodiments of invention, for those of ordinary skill in the art, on the premise of not paying creative work, can be with
Other accompanying drawings are obtained according to these accompanying drawings.
The structural representation of the optical diffusion of Fig. 1 anti scuffings, 1 is the base material of diffusion barrier, and 2 apply for the upper diffusion of diffusion barrier
Layer, 21 is the big particle diameter diffusion particle in upper diffusion coating, and 22 is the small diffusion particle in upper diffusion coating, and 3 apply for lower diffusion
Layer, 31 is the diffusion particle of lower diffusion coating.
Specific embodiment
To make the purpose, technical scheme and advantage of the embodiment of the present invention clearer, below in conjunction with the embodiment of the present invention,
Technical scheme in the embodiment of the present invention is clearly and completely described, it is clear that described embodiment is the present invention one
Divide embodiment, rather than whole embodiments.Based on the embodiment in the present invention, those of ordinary skill in the art are not making
The every other embodiment obtained under the premise of creative work, belongs to the scope of protection of the invention.
Embodiment 1：
The mass parts of nylon particle 7 of 5 μm of particle diameter are added in a reservoir, are subsequently added into the PEPA of 40 mass parts, so
The curing agent (PC2000, Nippon Paint Co., Ltd) of 3 mass parts is being gradually added afterwards, container is then being placed on stirring again
Mixing is stirred on device, lower diffusion coating composition of the invention is obtained.
The mass parts of silicon oxide compound particle 23 and 20 μm of the matter of polystyrene particle 32 that particle diameter is 4 μm are added in a reservoir
Amount part, is subsequently added into the PEPA of 42 mass parts, then (is stood in PC2000, Guangzhou in the curing agent for being gradually added 3 mass parts
Coating Co., Ltd of nation), container is placed on again then mixing is stirred on agitator, obtain upper diffusion coating combination of the invention
Thing.
Above-mentioned upper and lower diffusion coating composition is successively coated 50 μm of PET base material (the rich dimension limited public affairs of film in Shandong
Department) on, base material coating process is as follows:Base material is unreeled through unreeling machine, then automatic charging, composition on the base material coating after pass through
Three sections of baking oven bakings are crossed, oven temperature is respectively 90 DEG C, 100 DEG C, 120 DEG C, and drying tunnel length is 20m, and film is stopped in an oven
Time is 1min, eventually passes winder winding, obtains optical diffusion of the invention.
Embodiment 2：
The mass parts of nylon particle 5 of 7 μm of particle diameter are added in a reservoir, are subsequently added into the PEPA of 42 mass parts, so
The curing agent (PC2000, Nippon Paint Co., Ltd) of 4 mass parts is being gradually added afterwards, container is then being placed on stirring again
Mixing is stirred on device, lower diffusion coating composition of the invention is obtained.
The mass parts of silicon oxide compound particle 25 and 20 μm of the matter of polystyrene particle 35 that particle diameter is 5 μm are added in a reservoir
Amount part, is subsequently added into the PEPA of 45 mass parts, then (is stood in PC2000, Guangzhou in the curing agent for being gradually added 5 mass parts
Coating Co., Ltd of nation), container is placed on again then mixing is stirred on agitator, obtain upper diffusion coating combination of the invention
Thing.
Above-mentioned upper and lower diffusion coating composition is successively coated 100 μm of PET base material (the rich dimension limited public affairs of film in Shandong
Department) on, base material coating process is as follows:Base material is unreeled through unreeling machine, then automatic charging, composition on the base material coating after pass through
Three sections of baking oven bakings are crossed, oven temperature is respectively 90 DEG C, 100 DEG C, 120 DEG C, and drying tunnel length is 20m, and film is stopped in an oven
Time is 1min, eventually passes winder winding, obtains optical diffusion of the invention.
Embodiment 3：
The mass parts of nylon particle 5 of 8 μm of particle diameter are added in a reservoir, are subsequently added into the PEPA of 45 mass parts, so
The curing agent (PC2000, Nippon Paint Co., Ltd) of 5 mass parts is being gradually added afterwards, container is then being placed on stirring again
Mixing is stirred on device, lower diffusion coating composition of the invention is obtained.
The mass parts of silicon oxide compound particle 25 and 25 μm of the matter of polystyrene particle 36 that particle diameter is 8 μm are added in a reservoir
Amount part, is subsequently added into the PEPA of 48 mass parts, then (is stood in PC2000, Guangzhou in the curing agent for being gradually added 6 mass parts
Coating Co., Ltd of nation), container is placed on again then mixing is stirred on agitator, obtain upper diffusion coating combination of the invention
Thing.
Above-mentioned upper and lower diffusion coating composition is successively coated 50 μm of PET base material (the rich dimension limited public affairs of film in Shandong
Department) on, base material coating process is as follows:Base material is unreeled through unreeling machine, then automatic charging, composition on the base material coating after pass through
Three sections of baking oven bakings are crossed, oven temperature is respectively 90 DEG C, 100 DEG C, 120 DEG C, and drying tunnel length is 25m, and film is stopped in an oven
Time is 1min, eventually passes winder winding, obtains optical diffusion of the invention.
Embodiment 4：
The mass parts of nylon particle 5 of 8 μm of particle diameter are added in a reservoir, are subsequently added into the PEPA of 45 mass parts, so
The curing agent (PC2000, Nippon Paint Co., Ltd) of 8 mass parts is being gradually added afterwards, container is then being placed on stirring again
Mixing is stirred on device, lower diffusion coating composition of the invention is obtained.
The mass parts of silicon oxide compound particle 26 and 27 μm of the matter of polystyrene particle 38 that particle diameter is 7 μm are added in a reservoir
Amount part, is subsequently added into the PEPA of 46 mass parts, then (is stood in PC2000, Guangzhou in the curing agent for being gradually added 8 mass parts
Coating Co., Ltd of nation), container is placed on again then mixing is stirred on agitator, obtain upper diffusion coating combination of the invention
Thing.
Above-mentioned upper and lower diffusion coating composition is successively coated 100 μm of PET base material (the rich dimension limited public affairs of film in Shandong
Department) on, base material coating process is as follows:Base material is unreeled through unreeling machine, then automatic charging, composition on the base material coating after pass through
Three sections of baking oven bakings are crossed, oven temperature is respectively 90 DEG C, 100 DEG C, 120 DEG C, and drying tunnel length is 20m, and film is stopped in an oven
Time is 1min, eventually passes winder winding, obtains optical diffusion of the invention.
Embodiment 5：
The mass parts of nylon particle 10 of 5 μm of particle diameter are added in a reservoir, are subsequently added into the PEPA of 50 mass parts, so
The curing agent (PC2000, Nippon Paint Co., Ltd) of 7 mass parts is being gradually added afterwards, container is then being placed on stirring again
Mixing is stirred on device, lower diffusion coating composition of the invention is obtained.
The mass parts of silicon oxide compound particle 20 and 30 μm of the matter of polystyrene particle 38 that particle diameter is 6 μm are added in a reservoir
Amount part, is subsequently added into the PEPA of 50 mass parts, then (is stood in PC2000, Guangzhou in the curing agent for being gradually added 7 mass parts
Coating Co., Ltd of nation), container is placed on again then mixing is stirred on agitator, obtain upper diffusion coating combination of the invention
Thing.
Above-mentioned upper and lower diffusion coating composition is successively coated 50 μm of PET base material (the rich dimension limited public affairs of film in Shandong
Department) on, base material coating process is as follows:Base material is unreeled through unreeling machine, then automatic charging, composition on the base material coating after pass through
Three sections of baking oven bakings are crossed, oven temperature is respectively 90 DEG C, 100 DEG C, 120 DEG C, and drying tunnel length is 20m, and film is stopped in an oven
Time is 2min, eventually passes winder winding, obtains optical diffusion of the invention.
By in the optical diffusion of embodiment 1-5 reality group to 15.6 cun of backlight module, by after vibration test, lighting the back of the body
Whether light, have damage on observation and the upper and lower contact surface of diffusion barrier.
It is found through experiments that, the upper and lower surface of diffusion barrier is not damaged.
To sum up, optical diffusion prepared by the diffusion particle that can be compressed that the present invention is provided, advantageously reduces optics
The area that diffusion barrier is scraped off, it is to avoid made using the particle of resin enhancers and single particle size or narrow particle diameter in the prior art
The diffusion particle large area scratch caused when by external force of diffusion barrier that is prepared for diffusion particle comes off, and improves optics
The scratch resistance of diffusion barrier.
It should be noted that herein, such as first and second or the like relational terms are used merely to a reality
Body or operation make a distinction with another entity or operation, and not necessarily require or imply these entities or deposited between operating
In any this actual relation or order.And, term " including ", "comprising" or its any other variant be intended to
Nonexcludability is included, so that process, method, article or equipment including a series of key elements not only will including those
Element, but also other key elements including being not expressly set out, or also include being this process, method, article or equipment
Intrinsic key element.In the absence of more restrictions, the key element limited by sentence "including a ...", it is not excluded that
Also there is other identical element in process, method, article or equipment including the key element.
The above embodiments are merely illustrative of the technical solutions of the present invention, rather than its limitations；Although with reference to the foregoing embodiments
The present invention has been described in detail, it will be understood by those within the art that：It still can be to foregoing each implementation
Technical scheme described in example is modified, or carries out equivalent to which part technical characteristic；And these modification or
Replace, do not make the spirit and scope of the essence disengaging various embodiments of the present invention technical scheme of appropriate technical solution.
Claims (7)
1. a kind of optical diffusion of anti scuffing, it is characterised in that the optical diffusion include base material and upper diffusion coating, under
Diffusion coating, includes diffusion glue-line and diffusion particle, in the upper diffusion coating on this in diffusion coating and lower diffusion coating
Diffusion particle includes that the small particle diffusion particle that average grain diameter is 2-10 μm and average grain diameter spread grain for 20-30 μm of big particle diameter
Son, the lower diffusion coating includes 5-10 μm of diffusion particle, non-touching between the lower diffusion particle to be dispersed in base material
Lower surface.
2. a kind of optical diffusion of anti scuffing as claimed in claim 1, it is characterised in that the expansion in the upper diffusion coating
The sub direction that can be after stress along power of shot is compressed, and is replied after external force is removed.
3. a kind of optical diffusion of anti scuffing as claimed in claim 1, it is characterised in that the diffusion of the upper diffusion coating
Bondline thickness is 15-25 μm；Wherein, diffusion particle is filled in diffusion glue-line, the diffusion particle protrusion diffusion of the big particle diameter in part
Film surface.
4. a kind of optical diffusion of anti scuffing as claimed in claim 1, it is characterised in that the expansion in the upper diffusion coating
Shot is spherical.
5. a kind of optical diffusion of anti scuffing as claimed in claim 1, it is characterised in that the thickness of the lower diffusion coating
It is the maximum sized 1/3-7/8 of lower diffusion particle.
6. a kind of optical diffusion of anti scuffing as claimed in claim 1, it is characterised in that the upper diffusion coating, lower expansion
Dissipate the diffusion particle in coating for the one kind in silicon compound, silicone resin, polystyrene, polymethyl methacrylate or extremely
Few two kinds mixture.
7. a kind of optical diffusion of anti scuffing as claimed in claim 1, it is characterised in that the base material can be for poly- to benzene two
Formic acid glycol ester, glass, makrolon, polymethyl methacrylate or polystyrene, the thickness of the base material is 50-250 μ
m。
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611250506.3A CN106772724A (en) | 2016-12-30 | 2016-12-30 | A kind of optical diffusion of anti scuffing |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611250506.3A CN106772724A (en) | 2016-12-30 | 2016-12-30 | A kind of optical diffusion of anti scuffing |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106772724A true CN106772724A (en) | 2017-05-31 |
Family
ID=58927661
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201611250506.3A Pending CN106772724A (en) | 2016-12-30 | 2016-12-30 | A kind of optical diffusion of anti scuffing |
Country Status (1)
| Country | Link |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108508516A (en) * | 2018-04-19 | 2018-09-07 | 京东方科技集团股份有限公司 | A kind of diffusion sheet and preparation method thereof, backlight module, display device |
| CN113406739A (en) * | 2021-07-15 | 2021-09-17 | 江西古川胶带有限公司 | Optical diffusion film and preparation method and application thereof |
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| CN202075435U (en) * | 2011-05-16 | 2011-12-14 | 宁波东旭成化学有限公司 | Novel scratch-resistant diffusion film |
| CN102508326A (en) * | 2011-11-24 | 2012-06-20 | 合肥乐凯科技产业有限公司 | Optical diffusion barrier with high haze and high brightness and liquid crystal display backlight source using optical diffusion barrier |
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| CN103592706A (en) * | 2013-11-14 | 2014-02-19 | 宁波激智科技股份有限公司 | Atomization film applied to large-size displayer and backlight module thereof |
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| CN101957463A (en) * | 2010-08-31 | 2011-01-26 | 宁波激智新材料科技有限公司 | Anti-scuffing optical diffusion film, liquid crystal display device and illuminating device |
| CN202075435U (en) * | 2011-05-16 | 2011-12-14 | 宁波东旭成化学有限公司 | Novel scratch-resistant diffusion film |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108508516A (en) * | 2018-04-19 | 2018-09-07 | 京东方科技集团股份有限公司 | A kind of diffusion sheet and preparation method thereof, backlight module, display device |
| US11029454B2 (en) | 2018-04-19 | 2021-06-08 | Boe Technology Group Co., Ltd. | Diffusion sheet having self-lubricating particles and diffusion particles, method for fabricating the same, backlight module, and display device |
| CN113406739A (en) * | 2021-07-15 | 2021-09-17 | 江西古川胶带有限公司 | Optical diffusion film and preparation method and application thereof |
| CN113406739B (en) * | 2021-07-15 | 2023-04-25 | 江西古川胶带有限公司 | Optical diffusion film and preparation method and application thereof |
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