CN211698255U - Composite optical film - Google Patents
Composite optical film Download PDFInfo
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- CN211698255U CN211698255U CN202020486302.5U CN202020486302U CN211698255U CN 211698255 U CN211698255 U CN 211698255U CN 202020486302 U CN202020486302 U CN 202020486302U CN 211698255 U CN211698255 U CN 211698255U
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Abstract
The composite optical film provided by the disclosure sequentially comprises an anti-fog layer, a first diffusion layer, a green light absorption layer, a second diffusion layer, an ultraviolet absorption layer, a toughening layer and an anti-adhesion layer from top to bottom, wherein diffusion particles are arranged in the first diffusion layer and the second diffusion layer. In the aspect of filtering performance, the first diffusion layer and the second diffusion layer are compounded with the green light absorption layer and the ultraviolet absorption layer, so that the film can absorb incident light more sufficiently, and the whole optical absorption performance is more uniform; in the aspect of physical performance, the anti-fogging layer, the toughening layer and the anti-sticking layer are added to enable the film to have the effects of preventing fogging, reducing incident light scattering and reflection, high toughness and blocking resistance, and improve the service performance.
Description
Technical Field
The present disclosure relates to the field of films, and more particularly, to a composite optical film.
Background
The film is a common structure in the prior art, and can be divided into various types according to different functions, wherein, taking the film with optical filtering property as an example, the film with optical filtering property mainly plays a role in filtering light of a specific wave band, and has wide application in the fields of optics, military, electronic display and the like.
The film with the optical filtering property in the prior art has the problems of unreasonable structure, poor optical filtering effect, single absorption waveband and unreasonable absorption intensity distribution, and the film has poor optical filtering property due to the factors.
SUMMERY OF THE UTILITY MODEL
The present disclosure provides a composite optical film for optimizing the optical filtering of the film and increasing the functions of the film.
In order to achieve the above object, some embodiments of the present disclosure provide a composite optical film, which includes, in order from top to bottom, an anti-fog layer, a first diffusion layer, a green light absorption layer, a second diffusion layer, an ultraviolet absorption layer, a toughening layer, and an anti-adhesion layer, wherein diffusion particles are disposed in both the first diffusion layer and the second diffusion layer, and the diameter of the diffusion particles is 1 μm to 2 μm.
The composite optical film provided by the disclosure sequentially comprises an anti-fog layer, a first diffusion layer, a green light absorption layer, a second diffusion layer, an ultraviolet absorption layer, a toughening layer and an anti-adhesion layer from top to bottom, wherein diffusion particles are arranged in the first diffusion layer and the second diffusion layer. In the aspect of filtering performance, the first diffusion layer and the second diffusion layer are compounded with the green light absorption layer and the ultraviolet absorption layer, so that the film can absorb incident light more sufficiently, and the whole optical absorption performance is more uniform; in the aspect of physical performance, the anti-fogging layer, the toughening layer and the anti-sticking layer are added to enable the film to have the effects of preventing fogging, reducing incident light scattering and reflection, high toughness and blocking resistance, and improve the service performance. In addition, the diffusion particles in the scheme are triangular, so that the scheme can effectively prevent fog and optimize the performance of the composite optical film.
Preferably, the thickness of the anti-fog layer is 6 to 10 μm.
The thickness of the anti-fog layer is reasonable, and the physical properties of the composite optical film are optimized.
Preferably, the first diffusion layer and the second diffusion layer each have a thickness of 8 to 10 μm, the diffusion particles in the first diffusion layer are triangular in shape, and the diffusion particles in the second diffusion layer are prismatic in shape.
The thicknesses of the first diffusion layer and the second diffusion layer are reasonable, and the physical properties of the composite optical film are optimized.
Preferably, the thickness of the green light absorption layer is 16 to 20 μm, the absorption band of the green light absorption layer is 495 to 575nm, and the average transmittance is in the range of 4.6 to 9.2%.
The physical properties of the composite optical film are optimized.
Preferably, the ultraviolet absorption layer has a thickness of 14 to 16 μm, and the ultraviolet absorption layer has an average ultraviolet transmittance of 0.1 to 0.2%.
The ultraviolet absorption layer has good light absorption performance, and the performance of the composite optical film is optimized.
Preferably, the thickness of the toughening layer is 30 to 40 μm.
Preferably, the thickness of the anti-adhesion layer is 4-6 μm, and the anti-adhesion layer comprises BaSO4Particles of said BaSO4The particle size ranges from 1.6 to 2.4 μm.
Drawings
The following drawings are merely exemplary, not all drawings of the disclosed embodiments, and other drawings may be obtained by those skilled in the art in light of the disclosed embodiments.
Fig. 1 is a schematic diagram of an embodiment of the present disclosure.
Detailed Description
The present disclosure is further described below with reference to the accompanying drawings, and the following embodiments are merely exemplary and are not all embodiments of the technical solutions of the present disclosure.
As shown in fig. 1, the composite optical film comprises, from top to bottom, an anti-fog layer 1, a first diffusion layer 2, a green light absorption layer 3, a second diffusion layer 4, an ultraviolet absorption layer 5, a toughening layer 6, and an anti-sticking layer 7, wherein both the first diffusion layer 2 and the second diffusion layer 4 are provided with diffusion particles, and the diameter of the diffusion particles is 1 μm to 2 μm.
Specifically, the shapes of the diffusion particles in the first diffusion layer 2 and the diffusion particles in the second diffusion layer 4 may be different, for example, the shapes of the diffusion particles in the first diffusion layer 2 may be triangular, and the shapes of the diffusion particles in the second diffusion layer 4 may be prismatic.
The thickness of the anti-fog layer 1 is 6-10 mu m.
The thickness of the anti-fog layer 1 is 6 μm.
The thickness of the anti-fog layer 1 is 7 μm.
The thickness of the anti-fog layer 1 is 8 μm.
The thickness of the anti-fog layer 1 is 9 μm.
The thickness of the anti-fog layer 1 is 10 μm.
The first diffusion layer 2 and the second diffusion layer 4 each have a thickness of 8 μm.
The first diffusion layer 2 and the second diffusion layer 4 each have a thickness of 9 μm.
The first diffusion layer 2 and the second diffusion layer 4 each have a thickness of 10 μm.
The diffusion particles in the first diffusion layer are triangular in shape, and the diffusion particles in the second diffusion layer are prismatic in shape.
The thickness of the green light absorption layer 3 was 16 μm.
The thickness of the green light absorption layer 3 was 17 μm.
The thickness of the green light absorption layer 3 was 18 μm.
The thickness of the green light absorption layer 3 was 19 μm.
The thickness of the green light absorption layer 3 was 20 μm.
The thickness of the green light absorption layer 3 is 16-20 μm, the absorption wave band of the green light absorption layer 3 is 495-575 nm, and the average transmittance is 4.6-9.2%.
The thickness of the ultraviolet absorption layer 5 is 14-16 μm, and the average ultraviolet transmittance of the ultraviolet absorption layer 5 is 0.1-0.2%.
The thickness of the ultraviolet absorbing layer 5 was 14 μm.
The thickness of the ultraviolet absorption layer 5 is 15 μm.
The thickness of the ultraviolet absorbing layer 5 was 16 μm.
The thickness of the toughening layer 6 is 30 μm.
The thickness of the toughening layer 6 is 31 μm.
The thickness of the toughening layer 6 is 32 μm.
The thickness of the toughening layer 6 was 33 μm.
The thickness of the toughening layer 6 was 34 μm.
The thickness of the toughening layer 6 is 35 μm.
The thickness of the toughening layer 6 is 36 μm.
The thickness of the toughening layer 6 is 37 μm.
The thickness of the toughening layer 6 was 38 μm.
The thickness of the toughening layer 6 was 39 μm.
The thickness of the toughening layer 6 is 40 μm.
The thickness of the anti-sticking layer 7 was 4 μm.
The thickness of the anti-sticking layer 7 was 5 μm.
The thickness of the anti-sticking layer 7 was 6 μm.
The anti-stick layer 7 comprises BaSO4Particles of said BaSO4The particle size ranges from 1.6 to 2.4 μm.
A composite optical film comprises an anti-fog layer 1, a first diffusion layer 2, a green light absorption layer 3, a second diffusion layer 4, an ultraviolet absorption layer 5, a toughening layer 6 and an anti-sticking layer 7 from top to bottom in sequence;
the first diffusion layer 2 and the second diffusion layer 4 both comprise PET (polyethylene terephthalate) base materials, diffusion particles are distributed in the PET base materials, the diffusion particles are triangular, the diffusion particles comprise organic particle PEN and inorganic particle titanium dioxide, and the weight ratio of the organic particle PEN to the inorganic particle titanium dioxide is 1: 1-2.
The toughening layer 6 comprises 70-80 wt% of PET base material and 20-30 wt% of auxiliary material, wherein the auxiliary material is SBS or POE.
The anti-sticking layer 7 is BaSO4Coating, wherein the BaSO4Coated BaSO4The particle size range is 1.6 μm to 2.4. mu.m.
The technical solutions of the present disclosure are introduced above, and in order to make the technical solutions of the present disclosure easier for those skilled in the art to understand, the following further introduces the above solutions, and the following descriptions are only used to help those skilled in the art understand the technical solutions of the present disclosure, and are not limiting the technical solutions of the present disclosure.
Anti-fog layer 1: the PET substrate is adopted, an antifogging agent is contained in the PET substrate, the hydrophilic groups adsorb water molecules in the air and reduce the surface tension of the water molecules, so that the contact angle between the water molecules and the surface of a transparent object is reduced, the water molecules are wetted and diffused on the surface of the transparent object before forming fine water beads on the surface of the transparent object, an ultrathin transparent water film is formed, the incident light rays are not scattered, the sight line is not interfered, the antifogging effect is achieved when the PET substrate is used in a high-temperature and high-humidity environment, the thickness range of the film layer is 6-10 mu m, 8 mu m is preferred, and the PET substrate serves as a surface layer and has the effects of protecting the surface of the whole filter film from fogging and water entering.
First diffusion layer 2: using a PET base material in which triangular diffusion particles are dispersed, the particles may beDivided into organic particles PEN and inorganic particles TiO2The number ratio of the two is 1:1 to 1:2, preferably 1:1, the size of the particles is in the range of 1 to 2 μm, preferably 1.2 to 1.4 μm, and the thickness of the film layer is in the range of 8 to 10 μm, preferably 9 μm. The function of this rete is to play the diffused light, increases the light path for the absorption of incident light is more abundant in the green light absorption layer 3 of lower floor.
Green light absorption layer 3: the PET substrate is adopted, a green light absorbent is contained in the PET substrate, the absorption waveband is 495nm to 575nm, the compatilizer is maleic anhydride grafted POE/maleic anhydride grafted PP, the thickness of the film layer ranges from 16 to 20 microns, the preference is 18 microns, the average green light transmittance range from 495nm to 575nm ranges from 4.6% to 9.2%, the sensitivity of human eyes to green light is strongest, and most of harsh green intense light in the waveband can be filtered by the film layer, so that the purpose of protecting the human eyes is achieved.
Second diffusion layer 4: adopts PET base material, prismatic diffusion particles are dispersed in the PET base material, and the particles can be divided into organic particles PCT and inorganic particles SiO2The number ratio of the two is 1:1 to 1:2, preferably 1:1, the size of the particles is in the range of 1 to 2 μm, preferably 1.6 to 1.8 μm, and the thickness of the film layer is in the range of 8 to 10 μm, preferably 9 μm. The function of this rete is to play the diffuse light, increases the effect of light path for light after green light absorption layer 3 filters is more dispersed, even, in addition, can also make the absorption of the ultraviolet light absorption layer of lower floor to the light more abundant, homogeneous.
Ultraviolet absorbing layer 5: the PET substrate is adopted, the ultraviolet absorbent is contained in the PET substrate, the absorption waveband is 340nm to 385nm, the thickness of the film layer is 14 to 16 mu m, the preference is 15 mu m, and the average transmittance of the ultraviolet light is 0.1 percent to 0.2 percent. The film layer can absorb most of ultraviolet rays in the wave band, and plays roles of resisting light and aging and protecting human eye cuticle.
And (3) toughening layer 6: the PET substrate is 70 to 80 weight percent, and one of high transparent SBS or POE with 20 to 30 weight percent is adopted, and the thickness of the film layer is 30 to 40 μm, preferably 35 μm. The layer plays a role in increasing the overall toughness of the film and resisting large-angle bending.
Anti-sticking layer 7: will contain BaSO4The water-based polyurethane coating of the particles is coated on the toughening layer 6Surface, BaSO4The particle size ranges from 1.6 to 2.4 μm, preferably from 1.8 to 2 μm, and the thickness of the film layer after curing ranges from 4 to 6 μm, preferably 5 μm. The film layer has the function of preventing the bottom layer from being adhered to the surface of a contact object, and the flatness of the filter film in use is ensured.
While several possible embodiments of the disclosure have been described above with reference to the accompanying drawings, it is to be understood that these embodiments are not all embodiments of the disclosure, and that other embodiments may be devised by those skilled in the art without departing from the inventive concept, and that such embodiments are within the scope of the disclosure.
Claims (7)
1. A composite optical film, characterized by: the composite optical film sequentially comprises an anti-fog layer (1), a first diffusion layer (2), a green light absorption layer (3), a second diffusion layer (4), an ultraviolet absorption layer (5), a toughening layer (6) and an anti-sticking layer (7) from top to bottom, wherein diffusion particles are arranged in the first diffusion layer (2) and the second diffusion layer (4), and the diameters of the diffusion particles are 1-2 mu m.
2. A composite optical film according to claim 1, wherein: the thickness of the anti-fog layer (1) is 6-10 mu m.
3. A composite optical film according to claim 1, wherein: the thicknesses of the first diffusion layer (2) and the second diffusion layer (4) are both 8-10 microns, the shapes of diffusion particles in the first diffusion layer (2) are triangular, and the shapes of diffusion particles in the second diffusion layer (4) are prismatic.
4. A composite optical film according to claim 1, wherein: the thickness of the green light absorption layer (3) is 16-20 μm, the absorption wave band of the green light absorption layer (3) is 495-575 nm, and the average transmittance range is 4.6-9.2%.
5. A composite optical film according to claim 1, wherein: the thickness of the ultraviolet absorption layer (5) is 14-16 mu m, and the average ultraviolet transmittance of the ultraviolet absorption layer (5) is 0.1-0.2%.
6. A composite optical film according to claim 5, wherein: the thickness of the toughening layer (6) is 30-40 μm.
7. A composite optical film according to claim 6, wherein: the thickness of the anti-sticking layer (7) is 4-6 mu m, and the anti-sticking layer (7) comprises BaSO4Particles of said BaSO4The particle size ranges from 1.6 to 2.4 μm.
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115390166A (en) * | 2022-09-14 | 2022-11-25 | 苏州万洲新材料有限公司 | Multilayer composite optical film and die-free cutting method |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115390166A (en) * | 2022-09-14 | 2022-11-25 | 苏州万洲新材料有限公司 | Multilayer composite optical film and die-free cutting method |
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