CN102363667A - Brightening light diffusion material and preparation method thereof - Google Patents
Brightening light diffusion material and preparation method thereof Download PDFInfo
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- CN102363667A CN102363667A CN201110041648XA CN201110041648A CN102363667A CN 102363667 A CN102363667 A CN 102363667A CN 201110041648X A CN201110041648X A CN 201110041648XA CN 201110041648 A CN201110041648 A CN 201110041648A CN 102363667 A CN102363667 A CN 102363667A
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- blast
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- diffusing agent
- light diffusing
- photodiffusion
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Abstract
The invention which belongs to the technical field of the material chemistry relates to a brightening light diffusion material and a preparation method thereof. The brightening light diffusion material is characterized in that the brightening light diffusion material comprises the following components, by weight, 0.005-1% of a photoluminescent material, 0.02-5% of a light diffusant, and the balance transparent material. Compared with a case that only the light diffusant is added to a base material which treats the transparent material as a main component, the photoluminescent material and the light diffusant are added to the base material which treats the transparent material as a main component in the invention, so the light transmittance of the transparent material is improved and the light diffusion effect is improved.
Description
[technical field]
The invention belongs to material chemistry technical field, relate to a kind of blast photodiffusion material and preparation method thereof.
[background technology]
Module backlight is one of key part and component of panel of LCD, because liquid crystal itself is not luminous, the function of module backlight is exactly to be well-off brightness and the light source that is evenly distributed, and makes its normally show image.Module backlight is mainly assembled by assemblies such as light source, lampshade, reflector, light guiding plate, diffusion sheet, brightness enhancement film and housings, wherein the function of diffusion sheet for liquid-crystal display provides a uniform surface light source, traditional method is in the diffusion sheet of PC or PMMA resin material, to add inorganic assistant agent; Such as silicon-dioxide, permanent white, add these inorganic nano particles, light can carry out the effect that refraction of light many times reaches the light diffusion through the surface of molecule; But the loss of light is very big, because light can not penetrate inorganic nano particle, the penetration power of light is weakened greatly; In order to solve above-mentioned defective, adopt organic nano-powder at present mostly, it is a kind of nucleocapsid structure; This organic nano particle is a kind of tiny transparent glass spheres, adds among PC or the PMMA, can be dispersed in uniformly in the resin; The light of injecting penetrated glass spheres; In glass,, penetrate again, intensive light is disperseed through superrefraction uniformly through many times refraction; The light that penetrates becomes soft, and the loss of light is also less.The principle of brightness enhancement film is by prismatic lens the refraction of light to be reached cohesion light, improves the purpose of brightness, to increase the result of use after light self-diffusion plate penetrates with reflecting.
The light source of module backlight mainly adopts fluorescent tube, is replaced by the LED fluorescent tube gradually now.The LED fluorescent tube not only is applied to display backlight module field; Also be applied in the lighting of home field, but because led light source unit surface luminous intensity is big, so LED light is very dazzling; In order to make LED light become soft; In transparent lampshade base material, add some additives, make scattering of light, thereby reach the purpose of even light.Identical with the diffuser plate principle of module backlight is, in the lampshade base material, adds light diffusing agent, makes that light reflects in lampshade, emission and scattering, reaches the effect of light diffusion.
The amount that light diffusing agent in the light diffusion effect of diffusion sheet and lampshade and transmittance and its plastic basis material adds has substantial connection, if the amount that light diffusing agent adds is less, then translucent effect is better; But the light diffusion effect is but relatively poor relatively, if the amount that light diffusing agent adds is more, though the effect of light diffusion is better; But transmittance but relatively a little less than, so for balance light diffusion effect and transmittance, usually the add-on with light diffusing agent is controlled in certain scope; So; The penetration coefficient of light in being added with the plastics of light diffusing agent then can only maintain about 85%, and the utilization ratio of light is descended, and irradiant brightness simultaneously also can descend.
[summary of the invention]
In order both to improve the light diffusing ability of photodiffusion materials such as above-mentioned diffusion sheet and lampshade, can improve the penetration coefficient of light in photodiffusion material again, the present invention proposes a kind of new blast photodiffusion material and preparation method thereof.The photodiffusion material that the present invention proposes, transmittance reaches more than 90%, but light diffusing can be compared common photodiffusion material and is greatly improved simultaneously.
Concrete technical scheme of the present invention is following:
The present invention provides a kind of blast photodiffusion material, it is characterized in that, contains following component by weight percentage in the described blast photodiffusion material:
Fluorescence material: 0.05 ‰～5%;
Light diffusing agent: 0.2 ‰～5%;
Surplus is transparent light transmissive material.
Comprise also in the described blast photodiffusion material that weight percent is 0.1%～1% auxiliary agent, said auxiliary agent comprises one or more in dispersing auxiliary, the anti-oxidant auxiliary agent.
Said light diffusing agent is distributed in the light transmissive material in pelletized form, and particle size range is 1～100 μ m.
More excellent, said light diffusing agent is organic light diffusing agent, said organic light diffusing agent is the transparent ball shape and is distributed in the light transmissive material.
More excellent, said fluorescence material is a white dyes.
More excellent, said light transmissive material is polycarbonate or polymethylmethacrylate.
The present invention also provides a kind of method for preparing the blast photodiffusion material, it is characterized in that, this method comprises the steps:
By weight, take by weighing 0.05 part～50 parts fluorescence material and 0.2 part～50 parts light diffusing agent, fluorescence material and light diffusing agent are mixed obtain the mixing for standby use material;
Take by weighing a certain amount of light transmissive material again, the total weight parts that makes mixing for standby use material and light transmissive material is 1000 parts, with the mixing for standby use material join mix in the light transmissive material after, put into extruding pelletization in the forcing machine.
More excellent, said light diffusing agent is organic light diffusing agent.
More excellent, said fluorescence material is a white dyes, said light transmissive material is polycarbonate or polymethylmethacrylate.
The TR of said extruding pelletization is 200 ℃～300 ℃.
Beneficial technical effects of the present invention is:
It is in the base material of staple that the present invention joins fluorescence material and light diffusing agent with the transparent material together; Only light diffusing agent is joined in the base material that transparent material is the master before comparing; The transmittance of photodiffusion material not only can be improved, the light diffusion effect can also be improved.Major cause is: the visible light that fluorescent material itself can be transformed into the light beyond visible light or the visible light other wavelength comes out; Itself just can play the purpose of scattered light; Because scattered light can reach the purpose of diffusion effectively than directing light through refraction, reflection and the scattering of photodiffusion material, even this just makes that adding more a spot of light diffusing agent can make that also light obtains the effect of very good diffusion and even light.
On the other hand, fluorescent material can also be transformed into visible light with invisible light and come out, so can increase the brightness that appears after light transmission is come out significantly, plays the effect of tangible blast.
Because the cost of light diffusing agent is compared the cost of fluorescent material and is wanted high, so the present invention can also extraordinaryly provide cost savings.
[embodiment]
The present invention relates to a kind of blast photodiffusion material and preparation method thereof.Contain following component by weight percentage in the described blast photodiffusion material: fluorescence material: 0.05 ‰～5%; Light diffusing agent: 0.2 ‰～5%; Surplus is transparent light transmissive material.Said fluorescence material comprises inorganic fluorescent material: rare earth-alkali-metal sulfide, rare earth-aluminate etc.; Organic fluorescence materials: oxadiazoles and derivatives class thereof, triazole and derivatives class thereof, rhodamine and derivatives class thereof, coumarins verivate, 1; 8-naphthalimide analog derivative, pyrazoline derivative, triphenylamine analog derivative, porphyrins, carbazole, pyrazine, thiazole derivative, perylene analog derivative, polyphenyl, Polythiophene, gather fluorenes, gather triphenylamine, polycarbazole; Polypyrrole gathers porphyrin and verivate, multipolymer etc.Said light diffusing agent comprises inorganic light diffusing agent: silicon-dioxide, permanent white, lime carbonate, titanium oxide, aluminum oxide etc.; Organic light diffusing agent: acrylics, styrene resin, siloxane resin etc.Said light transmissive material comprises glass, polycarbonate, polymethylmethacrylate, PS etc.
Below in conjunction with specific embodiment the present invention is done further detailed elaboration and explanation:
Embodiment 1
A kind of blast photodiffusion material, the concrete steps that prepare this blast photodiffusion material are following:
Take by weighing 0.1 part of fluorescent material-be doped with aluminate and 0.5 part of light diffusing agent-permanent white of rare earth metal, these two kinds of materials are mixed and stir, subsequent use;
Take by weighing 999.4 parts of light transmissive material-glass powders; The mixture of two kinds of above-mentioned materials is joined in the glass powder; Stir, and put into melt in furnace and become in the liquid, and stir on the fusing of margin limit; The aluminate, permanent white and the glass that are doped with rare earth metal are mixed, last cooling forming.
The glass of processing has the light diffusing ability, and its transmittance is also stronger simultaneously, and transmittance reaches 84%.Contain mass percent in the said blast light diffusing glass and be 0.1 ‰ fluorescent material and 0.5 ‰ light diffusing agent.
Embodiment 2
A kind of blast photodiffusion material, the concrete steps that prepare this blast photodiffusion material are following:
Take by weighing 0.05 part of white dyes-oxadiazoles and 0.2 part of light diffusing agent-acrylics powder, these two kinds of materials are mixed and stir, subsequent use;
Take by weighing light transmissive material-polycarbonate particle of 999.75 parts; The mixture of oxadiazoles and acrylics is joined after the polycarbonate particle stirs; The mixture of these three kinds of materials is put in the forcing machine, and regulating extrusion temperature is 250 ℃ of extruding pelletizations, obtains the blast photodiffusion material.
Comprise 0.05 ‰ white dyes and 0.2 ‰ light diffusing agent in the blast light that the makes diffusion engineering plastics, said light diffusing agent is the transparent ball shape and is distributed in the said engineering plastics, and the particle size range of said transparent ball is 1～4 μ m.
Embodiment 3
A kind of blast photodiffusion material, the concrete steps that prepare this blast photodiffusion material are following:
Take by weighing 50 parts of white dyess-coumarins verivate and 50 parts of light diffusing agent-siloxane resins, these two kinds of materials are mixed and stir, subsequent use;
Take by weighing light transmissive material-polymethylmethacrylate particle of 900 parts; The mixture of coumarins verivate and siloxane resin is joined after the polymethylmethacrylate particle stirs; The mixture of these three kinds of materials is put in the forcing machine; Regulating extrusion temperature is 280 ℃ of extruding pelletizations, obtains the blast photodiffusion material.
Comprise 5% white dyes and 5% light diffusing agent in the blast light that the makes diffusion engineering plastics, said light diffusing agent is the transparent ball shape and is distributed in the said engineering plastics, and the particle size range of said transparent ball is 2～5 μ m.
Embodiment 4
A kind of blast photodiffusion material, the concrete steps that prepare this blast photodiffusion material are following:
Take by weighing 50 parts of white dyes-polyphenyl and 1 part of light diffusing agent-styrene resin, these two kinds of materials are mixed and stir, subsequent use;
Take by weighing light transmissive material-polystyrene particle of 949 parts; The mixture of polyphenyl and styrene resin is joined after polystyrene particle stirs; The mixture of these three kinds of materials is put in the forcing machine, and regulating extrusion temperature is 200 ℃ of extruding pelletizations, obtains the blast photodiffusion material.
Comprise 5% white dyes and 0.1% light diffusing agent in the blast light that the makes diffusion engineering plastics, said light diffusing agent is the transparent ball shape and is distributed in the said engineering plastics, and the particle size range of said transparent ball is 60～100 μ m.
Embodiment 5
A kind of blast photodiffusion material, the concrete steps that prepare this blast photodiffusion material are following:
Take by weighing 1 part of white dyes-be doped with alkali-metal sulfide and 5 parts of light diffusing agent-acrylicss of REE, these two kinds of materials are mixed and stir, subsequent use;
Take by weighing light transmissive material-polymethylmethacrylate particle of 994 parts; The mixture of alkali-metal sulfide that is doped with REE and acrylics is joined after the polymethylmethacrylate particle stirs; The mixture of these three kinds of materials is put in the forcing machine; Regulating extrusion temperature is 300 ℃ of extruding pelletizations, obtains the blast photodiffusion material.
Comprise 0.1% white dyes and 0.5% light diffusing agent in the blast light that the makes diffusion engineering plastics, said light diffusing agent is the transparent ball shape and is distributed in the said engineering plastics, and the particle size range of said transparent ball is 10～20 μ m.
Need to prove that those skilled in the art can also very simply expect other embodiment to the above embodiments, and through simply repeatedly experiment, just can access some improvement.But no matter how to improve,, belong to the protection domain of this patent as long as these technical schemes in concept of the present invention, should be equal to the technical scheme of this patent.
Claims (10)
1. a blast photodiffusion material is characterized in that, contains following component by weight percentage in the described blast photodiffusion material:
Fluorescence material: 0.05 ‰～5%;
Light diffusing agent: 0.2 ‰～5%;
Surplus is transparent light transmissive material.
2. blast photodiffusion material according to claim 1 is characterized in that, comprises also in the described blast photodiffusion material that weight percent is 0.1%～1% auxiliary agent, and said auxiliary agent comprises one or more in dispersing auxiliary, the anti-oxidant auxiliary agent.
3. blast light diffusing agent according to claim 1 and 2 is characterized in that, said light diffusing agent is distributed in the light transmissive material in pelletized form, and particle size range is 1～100 μ m.
4. blast photodiffusion material according to claim 3 is characterized in that, and is more excellent, and said light diffusing agent is organic light diffusing agent, and said organic light diffusing agent is the transparent ball shape and is distributed in the light transmissive material.
5. according to the arbitrary described blast photodiffusion material of claim 1-4, it is characterized in that more excellent, said fluorescence material is a white dyes.
6. blast photodiffusion material according to claim 5 is characterized in that, and is more excellent, and said light transmissive material is polycarbonate or polymethylmethacrylate.
7. a method for preparing the blast photodiffusion material is characterized in that, this method comprises the steps:
By weight, take by weighing 0.05 part～50 parts fluorescence material and 0.2 part～50 parts light diffusing agent, fluorescence material and light diffusing agent are mixed obtain the mixing for standby use material;
Take by weighing a certain amount of light transmissive material again, the total weight parts that makes mixing for standby use material and light transmissive material is 1000 parts, with the mixing for standby use material join mix in the light transmissive material after, put into extruding pelletization in the forcing machine.
8. the method for preparing the blast photodiffusion material according to claim 7 is characterized in that, said light diffusing agent is organic light diffusing agent.
9. the method for preparing the blast photodiffusion material according to claim 8 is characterized in that, and is more excellent, and said fluorescence material is a white dyes, and said light transmissive material is polycarbonate or polymethylmethacrylate.
10. according to the arbitrary described method for preparing the blast photodiffusion material of claim 7-9, it is characterized in that the TR of said extruding pelletization is 200 ℃～300 ℃.
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| CN201110041648XA CN102363667A (en) | 2011-02-21 | 2011-02-21 | Brightening light diffusion material and preparation method thereof |
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Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102618006A (en) * | 2012-03-16 | 2012-08-01 | 汤德明 | Composite material and technology for converting blue light from LED into white light |
| CN103400923A (en) * | 2013-07-31 | 2013-11-20 | 深圳市天电光电科技有限公司 | LED (light emitting diode) packaging structure and LED packaging method |
| CN104371208A (en) * | 2014-12-05 | 2015-02-25 | 成都领航科技股份有限公司 | Master batch of high-transmittance and high-masking diffusion plate, method for manufacturing master batch and method for manufacturing diffusion plate |
| CN104448651A (en) * | 2014-12-10 | 2015-03-25 | 厦门德丰行塑胶工业有限公司 | Heat-resistant high-transparency photodiffusion PMMA (polymethyl methacrylate) material and preparation method thereof |
| CN107907926A (en) * | 2017-12-28 | 2018-04-13 | 深圳大学 | A kind of light diffusing sheet and preparation method |
| CN110407217A (en) * | 2019-08-29 | 2019-11-05 | 淄博三锐陶瓷科技有限公司 | The method of the waste lithium cell positive electrode preparation high light inorganic material of nanometer |
| CN111919144A (en) * | 2018-03-27 | 2020-11-10 | 日立化成株式会社 | Wavelength conversion member, backlight unit, and image display device |
| CN112080097A (en) * | 2020-08-21 | 2020-12-15 | 福耀玻璃工业集团股份有限公司 | Vehicle exterior trimming part with fluorescent effect and preparation method thereof |
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| CN101506303A (en) * | 2006-08-25 | 2009-08-12 | 住友Dow株式会社 | Flame retardant and light diffusing polycarbonate resin composition and light diffusing plate comprising the same |
| CN101525483A (en) * | 2008-03-04 | 2009-09-09 | 帝人化成株式会社 | Aromatic polycarbonate resin composition with light diffusibility |
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Patent Citations (2)
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| CN101506303A (en) * | 2006-08-25 | 2009-08-12 | 住友Dow株式会社 | Flame retardant and light diffusing polycarbonate resin composition and light diffusing plate comprising the same |
| CN101525483A (en) * | 2008-03-04 | 2009-09-09 | 帝人化成株式会社 | Aromatic polycarbonate resin composition with light diffusibility |
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102618006A (en) * | 2012-03-16 | 2012-08-01 | 汤德明 | Composite material and technology for converting blue light from LED into white light |
| CN103400923A (en) * | 2013-07-31 | 2013-11-20 | 深圳市天电光电科技有限公司 | LED (light emitting diode) packaging structure and LED packaging method |
| CN104371208A (en) * | 2014-12-05 | 2015-02-25 | 成都领航科技股份有限公司 | Master batch of high-transmittance and high-masking diffusion plate, method for manufacturing master batch and method for manufacturing diffusion plate |
| CN104371208B (en) * | 2014-12-05 | 2017-04-19 | 成都领航科技股份有限公司 | Master batch of high-transmittance and high-masking diffusion plate, method for manufacturing master batch and method for manufacturing diffusion plate |
| CN104448651A (en) * | 2014-12-10 | 2015-03-25 | 厦门德丰行塑胶工业有限公司 | Heat-resistant high-transparency photodiffusion PMMA (polymethyl methacrylate) material and preparation method thereof |
| CN107907926A (en) * | 2017-12-28 | 2018-04-13 | 深圳大学 | A kind of light diffusing sheet and preparation method |
| CN107907926B (en) * | 2017-12-28 | 2021-03-02 | 深圳大学 | Light diffusion plate and preparation method thereof |
| CN111919144A (en) * | 2018-03-27 | 2020-11-10 | 日立化成株式会社 | Wavelength conversion member, backlight unit, and image display device |
| CN110407217A (en) * | 2019-08-29 | 2019-11-05 | 淄博三锐陶瓷科技有限公司 | The method of the waste lithium cell positive electrode preparation high light inorganic material of nanometer |
| CN112080097A (en) * | 2020-08-21 | 2020-12-15 | 福耀玻璃工业集团股份有限公司 | Vehicle exterior trimming part with fluorescent effect and preparation method thereof |
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Application publication date: 20120229 |