CN204515177U - dimming film - Google Patents

dimming film Download PDF

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Publication number
CN204515177U
CN204515177U CN201520150303.1U CN201520150303U CN204515177U CN 204515177 U CN204515177 U CN 204515177U CN 201520150303 U CN201520150303 U CN 201520150303U CN 204515177 U CN204515177 U CN 204515177U
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micro
dimming film
cave structure
cave
utility
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周盟杰
陈耀裕
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BenQ Materials Corp
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BenQ Materials Corp
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Abstract

The utility model is about a kind of dimming film, and it comprises: transparent base, and transparent base has incidence surface and exiting surface; And a plurality of micro-cave structure, a plurality of micro-cave structures are formed at the incidence surface of transparent base.Micro-cave structure is bevel taper shape, and wherein each micro-cave structure is made up of at least individual four sides.The dimming film that the utility model proposes, can improve the shortcoming of rainbow line by a plurality of nick caves structural design, sunshine can be made can be dispersed to indoor effectively equably everywhere simultaneously.Moreover, the utility model proposes the structural patterning glue-line design in nick cave, micro-cave structure can be protected to avoid destroying, and improve the brightness of the interior space and possess heat insulation effect.

Description

Dimming film
Technical field
The utility model relates to a kind of dimming film, and effectively can regulate and control sunshine in the distribution situation of the interior space, therefore can be applicable to window and curtain to reach energy-conservation effect.
Background technology
After awareness of saving energy improves gradually, Construction Lighting Economization on Energy also becomes one of problem of main research, and except utilizing artificial light device energy conservation, the strategy that natural light is energy-conservation simultaneously is also advocated energetically.
General mode energy-conservation is on the market attached on glass by the optical thin film with micro-prism structure, makes sunshine conduct to indoor ceiling to improve the brightness of the interior space according to specific direction.But the design of above-mentioned micro-prism structure can make sunshine produce obvious rainbow line on window-glass, and this not only causes the discomfort of human eye, also reduce the light penetration rate of glass originally simultaneously.Moreover, because the sunshine imported all is assembled on the ceiling, indoor cannot be distributed in equably everywhere, therefore only the brightness of the interior space is improved in local.
Utility model content
Because the problem of above-mentioned conventional art, the object of the utility model is exactly providing a kind of light modulating device possessing the patent requirements such as novelty, progressive and industry applications, all effectively cannot can improve the difficult point of the utilization factor of natural light to overcoming existing product.
For achieving the above object, the utility model provides a kind of dimming film, and it comprises: transparent base, and it has incidence surface and exiting surface; And a plurality of micro-cave structure, it is formed at the incidence surface of transparent base, and a plurality of micro-cave structure is bevel taper shape, and wherein each micro-cave structure is made up of at least four sides.
In the dimming film of an embodiment, wherein the length of each micro-cave structure is 25 μm to 750 μm.
In the dimming film of another embodiment, wherein the width of each micro-cave structure is 25 μm to 750 μm.
In the dimming film of another embodiment, wherein the degree of depth of each micro-cave structure is 45 μm to 2250 μm.
In the dimming film of another embodiment, wherein these at least four sides of each micro-cave structure are to form an opening surface, and the angle of arbitrary side in these at least four sides and opening surface is 45 ° to 85 °.
In the dimming film of another embodiment, wherein relative with arbitrary side another side and the angle of opening surface are 45 ° to 85 °.
In the dimming film of another embodiment, wherein the shape of each micro-cave structure can be identical or different.
In the dimming film of another embodiment, wherein the arrangement mode of each micro-cave structure can be continuous arrangement or discontinuous arrangement.
In the dimming film of another embodiment, the arrangement mode of a plurality of micro-cave structure is arrayed, curved arrangement, latticed array, random alignment or its combination.
In the dimming film of another embodiment, the optional free polyester (polyester) of transparent base system, polyethylene terephthalate (poly ethylene terephthalate, PET), polycarbonate (polycarbonate, PC), the group that forms of acryl resin (acrylate resin), polymethylmethacrylate (polymethyl methacrylate, PMMA) and polyurethane (poly urethane).
In the dimming film of another embodiment, micro-cave structure can be made up of thermohardening type material or photo-curing type.
In the dimming film of another embodiment, also comprise patterning functional coat, it is arranged at least one micro-cave structure.
Compared with prior art, the dimming film that the utility model proposes, can improve the shortcomings such as the rainbow line of aforementioned conventional dimming film by a plurality of nick caves structural design, sunshine can be made can be dispersed to indoor effectively equably everywhere simultaneously.Moreover, the utility model proposes the structural patterning glue-line design in nick cave, micro-cave structure can be protected to avoid destroying, and improve the brightness of the interior space and possess heat insulation effect.
Accompanying drawing explanation
The dimming film 100 of Figure 1A preferred embodiment of the present utility model face structural representation.
The side-looking structural representation of Figure 1B dimming film 100 of the present utility model.
The light path schematic diagram of Fig. 2 A light penetration dimming film 200 of the present utility model.
The enlarged diagram of Fig. 2 B micro-cave structure 220 of the present utility model.
The dimming film 300 of Fig. 3 another preferred embodiment of the present utility model face structural representation.
The cross-sectional view of the dimming film 400 of Fig. 4 another preferred embodiment of the present utility model.
Embodiment
For the effect clearly demonstrating feature of the present utility model, content and advantage and can reach, hereby by this novel cooperation accompanying drawing, and be described in detail as follows with the expression-form of embodiment, and it is wherein used graphic, its purport is only the use of signal and aid illustration book, for the actual proportions after the utility model enforcement and precisely may not configure, therefore should just appended graphic ratio and configuration relation not understand, limit to the interest field of the utility model on reality is implemented, conjunction be first chatted bright.
Hereinafter with reference to correlative type, the embodiment according to the utility model dimming film is described, for making to be convenient to understand, the similar elements in following embodiment illustrates with identical symbology.
The dimming film 100 of Figure 1A preferred embodiment of the present utility model face structural representation.Figure 1B is the side-looking structural representation of dimming film 100 of the present utility model.
Dimming film 100 and light source 130 is comprised shown in Figure 1A.In this diagram, dimming film 100 comprises transparent base 110 and a plurality of micro-cave structure 120, and a plurality of micro-cave structures 120 are formed at the incidence surface side of transparent base 110.Said light source 130 such as can be sunshine, but is not limited thereto.
Please refer to Figure 1B, the micro-cave structure 120 on dimming film 100 is in bevel taper, and each micro-cave structure 120 is in continuous arrangement.And these micro-cave structures 120 are latticed array on transparent base 110.
Aforementioned micro-cave structure 120 is in bevel taper, and each micro-cave structure 120 is made up of at least four sides, such as, can be but be not limited to many cone bodies such as quadrangular pyramid, hexagonal cone.In another embodiment of the present utility model, the micro-cave structure on dimming film is made up of six sides.
Moreover the shape of each micro-cave structure 120 on dimming film 100 can be identical or different, the arrangement mode of each micro-cave structure 120 can be continuous arrangement or discontinuous arrangement.In another embodiment of the present utility model, each micro-cave structure can be not identical structure.
Again, the arrangement mode of the micro-cave structure 120 on dimming film 100 is not limited to latticed array, also can be arrayed, curved arrangement, random alignment or its combination.In another embodiment of the present utility model, micro-cave structure is random alignment.
Fig. 2 A is the light path schematic diagram of light penetration dimming film 200 of the present utility model.Fig. 2 B is the enlarged diagram of micro-cave structure 220 of the present utility model.Following detailed description is please also refer to Fig. 2 A and Fig. 2 B.
Dimming film 200 is made up of transparent base 210 and a plurality of micro-cave structure 220, and each micro-cave structure 220 is made up of four side P1 (being made up of summit OCD), P2 (being made up of summit OBC), P3 (being made up of summit OAB) and P4 (being made up of summit OAD).These sides P1, P2, P3 and P4 of micro-cave structure 220 form opening surface P0.
When light source 230 launches incident light 231 to dimming film 200, one side P1 of the micro-cave structure 220 of this incident light 231 meeting on film 200 reflects, then penetrate the another side P3 of this micro-cave structure 220 again, last light will be fed to indoor ceiling.
Simultaneously, the incident light 231 that this light source 230 is launched, its part can penetrate a side P1 of the micro-cave structure 220 on film 200, is then totally reflected in the another side P3 of this micro-cave structure 220 again, is finally fed to the interior space in the mode of almost parallel light.
Therefore, for making light source can be dispersed to indoor effectively equably everywhere, the either side of the micro-cave structure 220 on dimming film 200 looks like the angle α of side P1 and opening surface P0 1be 45 ° to 85 °, be preferably 45 ° to 65 °, the best is 55 ° to 65 °.Again, the angle α of relative with side P1 another side P3 itself and opening surface P0 2be 45 ° to 85 °, be preferably 70 ° to 85 °, the best is 80 ° to 85 °.
In addition, the length L1 of each micro-cave structure 220 of the present embodiment is 25 μm to 750 μm, is preferably 25 μm to 500 μm, and the best is 25 μm to 250 μm.Width W 1 scope of each micro-cave structure 220 is 25 μm to 750 μm, is preferably 25 μm to 500 μm, and the best is 25 μm to 250 μm.The depth H 1 of each micro-cave structure 220 is 45 μm to 2250 μm, is preferably 45 μm to 1500 μm, and the best is between 45 μm to 600 μm.
The length of aforementioned micro-cave structure 220, width, the degree of depth and the angle angle design between opening surface and side are the directions regulating and controlling light outgoing.Therefore, according to the application target of dimming film from the design of Row sum-equal matrix said structure, can be not limited to this.
Moreover, transparent base in dimming film of the present utility model is optional free polyester (polyester), polyethylene terephthalate (poly ethylene terephthalate such as, PET), polycarbonate (polycarbonate, PC), the group that forms of acryl resin (acrylate resin), polymethylmethacrylate (poly methyl methacrylate, PMMA) and polyurethane (poly urethane).Micro-cave structure on this dimming film can be made up of thermohardening type material or photo-curing type.
In the present embodiment, the transparent base 210 of dimming film 200 is polyethylene terephthalate, and micro-cave structure 220 is made up of photo-curing type.
Fig. 3 be the dimming film 300 of another preferred embodiment of the present utility model face structural representation.Dimming film 300 is by transparent base 310, a plurality of micro-cave structure 320, a plurality of micro-cave structure 320 is arranged on the incidence surface of transparent base 310, and patterning functional coating 330, patterning functional coating 330 is arranged at least one micro-cave structure 320.
The functional layer 330 of this patterning, in order to improve the brightness of the interior space and to reduce the generation of rainbow line.This patterning functional coat 330 such as can be adhesion layer, infrared resistant layer, uvioresistant layer, anti-soil layer or its combination, but is not limited to this.In the present embodiment, the functional layer 330 of this patterning is adhesion layer, therefore dimming film 300 can be attached on window group glass by this.The micro-cave structure 320 on dimming film 300 can be made not easily to be damaged on the one hand, on the other hand, the space formed between this patterning functional coat 330 and micro-cave structure 320 possesses heat insulation effect.
In addition, also can functional coat be set in the exiting surface side of the transparent base 310 of this dimming film 300, such as, can be adhesion layer, infrared resistant layer, uvioresistant layer, anti-soil layer or its combination, but be not limited to this.
Fig. 4 is the cross-sectional view of the dimming film 400 of another preferred embodiment of the present utility model.Dimming film 400 is made up of transparent base 410 and a plurality of micro-cave structure 420.Dimming film 400 is with the difference of aforementioned dimming film 100, and each micro-cave structure 420 is discontinuous arrangement.Wherein, the interval S 1 between each micro-cave structure 420 is 0.01 μm to 20 μm, is preferably 0.01 μm to 10 μm, and the best is 0.01 μm to 4 μm.
The method for making of dimming film of the present utility model comprises the method for makings such as impression, extruding, mold, injection.Such as the side coating photocurable material layer of method for stamping on transparent base, then makes a plurality of nick caves structure formation on transparent base with particular mold impression photocurable material layer, is finally cured step again.
Separately, the configuration mode applied in window group of dimming film of the present utility model can part or all on window group glass, above-mentioned " part " such as can be compartment configuration, checkerboard type configuration or patterning configuration, is not limited to this, the mode that can configure from Row sum-equal matrix according to the demand of user.
To sum up, the dimming film that the utility model proposes, can improve the shortcomings such as the rainbow line of aforementioned conventional dimming film by a plurality of nick caves structural design, sunshine can be made can be dispersed to indoor effectively equably everywhere simultaneously.Moreover, the utility model proposes the structural patterning glue-line design in nick cave, micro-cave structure can be protected to avoid destroying, and improve the brightness of the interior space and possess heat insulation effect.
In addition, the micro-cave structure on the dimming film of Fig. 1 to Fig. 4 is only schematic diagram, does not proportionally draw.Therefore above-described embodiment is only explanation technological thought of the present utility model and feature, its object understands content of the present utility model implementing according to this enabling the person skilled in the art, when can not with restriction the scope of the claims of the present utility model, namely the equalization change that the spirit that all the utility model disclose is done or modification, must be encompassed in the scope of the claims of the present utility model.

Claims (10)

1. a dimming film, is characterized in that, this dimming film comprises:
Transparent base, it has incidence surface and exiting surface; And
A plurality of micro-cave structure, it is formed at this incidence surface of this transparent base, and this plurality of micro-cave structure is bevel taper shape, and wherein each micro-cave structure is made up of at least four sides.
2. dimming film as claimed in claim 1, it is characterized in that, the length of each micro-cave structure is 25 μm to 750 μm.
3. dimming film as claimed in claim 1, it is characterized in that, the width of each micro-cave structure is 25 μm to 750 μm.
4. dimming film as claimed in claim 1, it is characterized in that, the degree of depth of each micro-cave structure is 45 μm to 2250 μm.
5. dimming film as claimed in claim 1, it is characterized in that, these at least four sides of each micro-cave structure form an opening surface, and the angle of arbitrary side in these at least four sides and this opening surface is 45 ° to 85 °.
6. dimming film as claimed in claim 5, it is characterized in that, the another side relative with this arbitrary side and the angle of this opening surface are 45 ° to 85 °.
7. dimming film as claimed in claim 1, it is characterized in that, in this plurality of micro-cave structure, the shape of each micro-cave structure is identical or different.
8. dimming film as claimed in claim 1, it is characterized in that, the arrangement mode of each micro-cave structure is continuous arrangement or discontinuous arrangement.
9. dimming film as claimed in claim 1, is characterized in that, the arrangement mode of this plurality of micro-cave structure is arrayed, curved arrangement, latticed array, random alignment or its combination.
10. dimming film as claimed in claim 1, it is characterized in that, also comprise patterning functional coat, it is arranged at least one micro-cave structure.
CN201520150303.1U 2015-03-17 2015-03-17 dimming film Active CN204515177U (en)

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105700049A (en) * 2016-04-26 2016-06-22 京东方科技集团股份有限公司 Prismatic lens and manufacturing method thereof, backlight module group and VR display device
CN109001854A (en) * 2018-09-28 2018-12-14 上海友浦塑胶有限公司 A kind of new indoor natural light light modulation birefringent thin film and preparation method

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105700049A (en) * 2016-04-26 2016-06-22 京东方科技集团股份有限公司 Prismatic lens and manufacturing method thereof, backlight module group and VR display device
CN105700049B (en) * 2016-04-26 2018-11-30 京东方科技集团股份有限公司 A kind of prismatic lens and preparation method thereof, backlight module and VR display device
CN109001854A (en) * 2018-09-28 2018-12-14 上海友浦塑胶有限公司 A kind of new indoor natural light light modulation birefringent thin film and preparation method

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