CN103955016A - Photodiffusion film with blue light shielding function - Google Patents
Photodiffusion film with blue light shielding function Download PDFInfo
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- CN103955016A CN103955016A CN201410162641.7A CN201410162641A CN103955016A CN 103955016 A CN103955016 A CN 103955016A CN 201410162641 A CN201410162641 A CN 201410162641A CN 103955016 A CN103955016 A CN 103955016A
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Abstract
The invention relates to a photodiffusion film with a blue light shielding function. The photodiffusion film is composed of a base material layer, a photodiffusion layer and a blue light shielding layer, wherein the two surfaces of the base material layer are provided with the photodiffusion layer and the blue light shielding layer respectively. According to the photodiffusion layer, organic silicon resin spherical micro-powder is evenly dispersed in base materials, the thickness of the organic silicon resin spherical micro-powder is 5% - 20% of the thickness of the whole film, and the weight of the organic silicon resin spherical micro-powder is 0.5% - 2% of the total weight of the photodiffusion layer. According to the blue light shielding layer, blue light shielding particles are evenly dispersed in the base materials, the thickness of the blue light shielding particles is 5% - 20% of the thickness of the whole film, and the weight of the blue light shielding particles is 0.5% - 2% of the total weight of the blue light shielding layer. The photodiffusion film has the advantages of being high in haze, moderate in light transmittance, and good in stability of haze and light transmittance and has a blue light shielding function. Solutions are not used during photodiffusion film manufacturing, and therefore environmental friendliness is realized. Meanwhile, manufacturing technology is simple, price is low, application prospects are good, and market value is high.
Description
Technical field
The present invention relates to a kind of optical diffusion film, particularly a kind of optical diffusion film with blue light function of shielding.
Background technology
Diffusion barrier is a kind of film that point, line source can be converted to line, area source and possess light diffusion function.When light is when through diffusion layer, will there is the phenomenon of many refractions, reflection and scattering in light, so just caused the effect of optics diffusion, belongs to optical thin film.Diffusion barrier is widely used in the field such as flat pannel display, LED lamp.
Traditional diffusion barrier is to be mainly partial to, by light diffusion, in matrix, add light inlet diffusion particle, and do not consider the performance that improves its blue light shielding.Along with the development of LED industry, the application of LED in life is also more and more extensive.Why the white light of the light source transmitting of LED lamp can form is mainly the blue-light excited fluorescent powder by 450～455nm wavelength, and the lower percussion ability of its medium wavelength is stronger.Conventionally LED light source dispatch from the factory wavelength control within 500nm, be generally 450～455nm or 455～460nm, all belong to the strongest section of radiation injury.If it is large that wavelength becomes, the ability of excitated fluorescent powder just declines so, and luminescence efficiency will reduce.Manufacturer, in order to pursue brightness, can strengthen the blue light strength of LED light source conventionally, if human eye is seen such light source for a long time, unavoidable eyes can be subject to blue light injury.In addition, also have a bit, the time that LED lamp is lit a lamp is longer, and the decay of fluorescent powder in light source is faster, and result will cause the illumination of blue wave band of human eye contact more and more stronger, thereby human eye is damaged.So, under the LED lamp that contains blue light, work for a long time, easily allow people produce dizzy, uncomfortable sensation, even can cause the fine injury of eye, the probability having a trouble in one's eyesight can be increased.
Summary of the invention
The object of the present invention is to provide that a kind of quality is good, cost is low, environmental protection and there is the optical diffusion film of blue light function of shielding.
For achieving the above object, the following technical scheme of employing of the present invention:
There is an optical diffusion film for blue light function of shielding, comprise base material layer, light diffusion layer and blue light screen layer, it is characterized in that being respectively arranged with described light diffusion layer and blue light screen layer on two surfaces of described base material layer; Wherein said light diffusion layer is dispersedly in matrix material to have an organic silicon resin ball-shaped micro powder, and its thickness accounts for the 5-20% of whole film thickness, and the quality of described organic silicon resin ball-shaped micro powder accounts for the 0.5-2% of light diffusion layer general assembly (TW); Described blue light screen layer is dispersedly in matrix material to have a blue light shielding particle, and its thickness accounts for the 5-20% of whole film thickness, and the weight of described blue light shielding particle accounts for the 0.5-2% of blue light screen layer general assembly (TW).
Described matrix material is the one in polycarbonate (PC), polyethylene terephthalate (PET), polymethylmethacrylate (PMMA) or polypropylene (PP).
Described organic silicon resin ball-shaped micro powder comprises at least one in organic siliconresin microballoon, the silicon microballoon modified by nano titanium oxide of surface modification not.
Above-mentioned blue light shielding particle is the silicon microballoon of being modified by rare earth oxide.
Optical diffusion film of the present invention has that mist degree is high, light penetration is moderate and mist degree and light penetration good stability, and has the effect of blue light shielding.In preparation process, do not use solvent, environmental protection, while manufacturing process is simple, low price, has the very big marketable value of better application prospect.
Brief description of the drawings
Fig. 1 is the structural representation of the optical diffusion film with blue light function of shielding of the present invention.
Embodiment
The preparation method of the silicon microballoon that the nano titanium oxide that the present embodiment adopts is modified refers to Chinese patent light diffusing agent, light dispersion and preparation method thereof (application number 201210111185.4).Use silicones microballoon to refer to Chinese patent as the preparation technology of the photodiffusion material of adjuvant and be applicable to polycarbonate composite material of LED lampshade and preparation method thereof (application number 201210040103.1).The preparation method of the silicon microballoon that rare earth oxide is modified refers to a kind of opacus diffusant of blue screen of Chinese patent and preparation method's (simultaneously submitting examination & verification with this patent).
Referring to Fig. 1, the optical diffusion film of anti-blue light of the present invention, comprises base material layer 2, and one side surface is provided with light diffusion layer 1, opposite side surface is provided with blue light screen layer 3, and light diffusion layer 1 and blue light screen layer 3 form with diffusion particle and anti-blue light particle by matrix material is compound respectively.Wherein, the weight of the diffusion particle in light diffusion layer accounts for the 0.5-2% of light diffusion layer general assembly (TW), and the weight of the blue light shielding particle in blue light screen layer accounts for the 0.5-2% of blue light screen layer general assembly (TW).Light diffusion layer 1 and blue light screen layer 3 account for respectively the 5-20% of whole film thickness.The light diffusion blue light screened film of whole three layers, adopt three-layer co-extruded go out two-way stretch be prepared from.
The diffusion particle that wherein light diffusion layer 1 contains is organic silicon resin ball-shaped micro powder, be one or more potpourris in KMP-590, the KMP-470 of the silicon microballoon of being modified by nano titanium oxide, the production of Japanese SHIN-ETSU HANTOTAI, the particle diameter of diffusion particle is 1.5 μ m-2.2 μ m.The blue light shielding particle that blue light screen layer 3 contains is the silicon microballoon of being modified by rare earth oxide, and blue light shielding particle diameter is 1.5 μ m-2.2 μ m.
Specific embodiment when following table has been listed matrix material use PC and the test result of transmittance and mist degree.
Following table is by being used different matrixes to prepare film, and light diffusion layer selects diffusion particle to be TiO
2@SMS, addition is 10%; Blue light screen layer selects blue light shielding particle to be CeO
2@SMS, addition is 10%.It has been carried out to the test of blue light shield effectiveness.
。
Claims (4)
1. there is an optical diffusion film for blue light function of shielding, comprise base material layer, light diffusion layer and blue light screen layer, it is characterized in that being respectively arranged with described light diffusion layer and blue light screen layer on two surfaces of described base material layer; Wherein said light diffusion layer is dispersedly in matrix material to have an organic silicon resin ball-shaped micro powder, and its thickness accounts for the 5-20% of whole film thickness, and the quality of described organic silicon resin ball-shaped micro powder accounts for the 0.5-2% of light diffusion layer general assembly (TW); Described blue light screen layer is dispersedly in matrix material to have a blue light shielding particle, and its thickness accounts for the 5-20% of whole film thickness, and the weight of described blue light shielding particle accounts for the 0.5-2% of blue light screen layer general assembly (TW).
2. according to the optical diffusion film with blue light function of shielding described in claim 1, it is characterized in that described matrix material is the one in polycarbonate (PC), polyethylene terephthalate (PET), polymethylmethacrylate (PMMA) or polypropylene (PP).
3. according to the optical diffusion film with blue light function of shielding described in claim 1, it is characterized in that described organic silicon resin ball-shaped micro powder comprises at least one in organic siliconresin microballoon, the silicon microballoon modified by nano titanium oxide of surface modification not.
4. according to the optical diffusion film with blue light function of shielding described in claim 1, it is characterized in that described blue light shielding particle is the silicon microballoon of being modified by rare earth oxide.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410162641.7A CN103955016A (en) | 2014-04-22 | 2014-04-22 | Photodiffusion film with blue light shielding function |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410162641.7A CN103955016A (en) | 2014-04-22 | 2014-04-22 | Photodiffusion film with blue light shielding function |
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| CN103955016A true CN103955016A (en) | 2014-07-30 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201410162641.7A Pending CN103955016A (en) | 2014-04-22 | 2014-04-22 | Photodiffusion film with blue light shielding function |
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Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103823258A (en) * | 2014-01-23 | 2014-05-28 | 太湖金张科技股份有限公司 | Blue light-blocking diffusion film |
| CN106291777A (en) * | 2015-05-19 | 2017-01-04 | 象山激智新材料有限公司 | The light-transmissive film of a kind of anti-blue light or plate and application thereof |
| CN106405698A (en) * | 2016-11-23 | 2017-02-15 | 江苏裕兴薄膜科技股份有限公司 | Preparation method of high-transmittance high-haze light diffusion film |
| CN106873059A (en) * | 2015-12-14 | 2017-06-20 | 宁波长阳科技股份有限公司 | A kind of extrusion type brightness enhancement film and preparation method thereof |
| CN107283981A (en) * | 2017-07-05 | 2017-10-24 | 杨建� | A kind of blue light Obstruct membrane and preparation method thereof |
| CN107489983A (en) * | 2016-06-13 | 2017-12-19 | 沈阳芯光科技有限公司 | A kind of light fixture with the anti-blue light diffuser of nano material |
| CN108712966A (en) * | 2016-03-10 | 2018-10-26 | 富士胶片株式会社 | Gas barrier film and wavelength conversion film |
| CN109946777A (en) * | 2017-12-20 | 2019-06-28 | 张家港康得新光电材料有限公司 | Optical filter, preparation method and the imaging device with it |
| WO2019169569A1 (en) * | 2018-03-07 | 2019-09-12 | 重庆颖锋兴瑞光电科技有限公司 | Three-in-one co-extrusion molded pp diffusion plate |
| CN112126209A (en) * | 2020-09-24 | 2020-12-25 | 贵溪市清亮照明科技有限公司 | Blue light removing photodiffusion material, photocureable coating and LED light source |
| CN113534523A (en) * | 2021-06-25 | 2021-10-22 | 北海惠科光电技术有限公司 | Color film substrate and manufacturing method thereof |
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| JPS62223702A (en) * | 1986-03-26 | 1987-10-01 | Toshiba Corp | Filter film for shielding blue color |
| JP2008145883A (en) * | 2006-12-12 | 2008-06-26 | Keiwa Inc | Light diffusion sheet for liquid crystal display device |
| KR20080063986A (en) * | 2007-01-03 | 2008-07-08 | 삼성전기주식회사 | Diffusion sheet for wavelength changing and backlight unit using the same |
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Cited By (14)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN103823258A (en) * | 2014-01-23 | 2014-05-28 | 太湖金张科技股份有限公司 | Blue light-blocking diffusion film |
| CN106291777A (en) * | 2015-05-19 | 2017-01-04 | 象山激智新材料有限公司 | The light-transmissive film of a kind of anti-blue light or plate and application thereof |
| CN106291777B (en) * | 2015-05-19 | 2018-06-19 | 象山激智新材料有限公司 | The light-transmissive film or plate of a kind of anti-blue light and its application |
| CN106873059A (en) * | 2015-12-14 | 2017-06-20 | 宁波长阳科技股份有限公司 | A kind of extrusion type brightness enhancement film and preparation method thereof |
| CN108712966A (en) * | 2016-03-10 | 2018-10-26 | 富士胶片株式会社 | Gas barrier film and wavelength conversion film |
| CN107489983A (en) * | 2016-06-13 | 2017-12-19 | 沈阳芯光科技有限公司 | A kind of light fixture with the anti-blue light diffuser of nano material |
| CN106405698A (en) * | 2016-11-23 | 2017-02-15 | 江苏裕兴薄膜科技股份有限公司 | Preparation method of high-transmittance high-haze light diffusion film |
| CN107283981A (en) * | 2017-07-05 | 2017-10-24 | 杨建� | A kind of blue light Obstruct membrane and preparation method thereof |
| CN107283981B (en) * | 2017-07-05 | 2019-07-05 | 杨建� | A kind of blue light barrier film and preparation method thereof |
| CN109946777A (en) * | 2017-12-20 | 2019-06-28 | 张家港康得新光电材料有限公司 | Optical filter, preparation method and the imaging device with it |
| WO2019169569A1 (en) * | 2018-03-07 | 2019-09-12 | 重庆颖锋兴瑞光电科技有限公司 | Three-in-one co-extrusion molded pp diffusion plate |
| CN112126209A (en) * | 2020-09-24 | 2020-12-25 | 贵溪市清亮照明科技有限公司 | Blue light removing photodiffusion material, photocureable coating and LED light source |
| CN113534523A (en) * | 2021-06-25 | 2021-10-22 | 北海惠科光电技术有限公司 | Color film substrate and manufacturing method thereof |
| CN113534523B (en) * | 2021-06-25 | 2022-11-25 | 北海惠科光电技术有限公司 | Color film substrate and manufacturing method thereof |
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Application publication date: 20140730 |
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