CN212846247U - Automobile light-adjusting window film - Google Patents
Automobile light-adjusting window film Download PDFInfo
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- CN212846247U CN212846247U CN202021901155.XU CN202021901155U CN212846247U CN 212846247 U CN212846247 U CN 212846247U CN 202021901155 U CN202021901155 U CN 202021901155U CN 212846247 U CN212846247 U CN 212846247U
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- pet
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- 239000010410 layer Substances 0.000 claims abstract description 48
- 239000004983 Polymer Dispersed Liquid Crystal Substances 0.000 claims abstract description 20
- 239000012790 adhesive layer Substances 0.000 claims abstract description 12
- 230000003287 optical effect Effects 0.000 claims abstract description 4
- 229920000139 polyethylene terephthalate Polymers 0.000 claims description 64
- 238000002834 transmittance Methods 0.000 claims description 11
- 239000003522 acrylic cement Substances 0.000 claims description 8
- 229920002799 BoPET Polymers 0.000 claims description 7
- 239000000853 adhesive Substances 0.000 claims description 7
- 230000001070 adhesive effect Effects 0.000 claims description 7
- 239000011521 glass Substances 0.000 claims description 3
- BQCADISMDOOEFD-UHFFFAOYSA-N Silver Chemical compound [Ag] BQCADISMDOOEFD-UHFFFAOYSA-N 0.000 claims description 2
- 238000007747 plating Methods 0.000 claims description 2
- 229920000642 polymer Polymers 0.000 claims description 2
- 239000012528 membrane Substances 0.000 abstract description 30
- 238000000034 method Methods 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 2
- 239000011248 coating agent Substances 0.000 description 2
- 238000000576 coating method Methods 0.000 description 2
- 238000001755 magnetron sputter deposition Methods 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 230000035807 sensation Effects 0.000 description 2
- 230000000007 visual effect Effects 0.000 description 2
- SMZOUWXMTYCWNB-UHFFFAOYSA-N 2-(2-methoxy-5-methylphenyl)ethanamine Chemical compound COC1=CC=C(C)C=C1CCN SMZOUWXMTYCWNB-UHFFFAOYSA-N 0.000 description 1
- NIXOWILDQLNWCW-UHFFFAOYSA-N 2-Propenoic acid Natural products OC(=O)C=C NIXOWILDQLNWCW-UHFFFAOYSA-N 0.000 description 1
- 238000010924 continuous production Methods 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000010030 laminating Methods 0.000 description 1
- 230000004807 localization Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
- 238000011056 performance test Methods 0.000 description 1
- 239000005020 polyethylene terephthalate Substances 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 230000001681 protective effect Effects 0.000 description 1
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- Laminated Bodies (AREA)
- Joining Of Glass To Other Materials (AREA)
Abstract
The utility model relates to a car window membrane of adjusting luminance, it is from type membrane, adhesive layer, the colorless transparent film of PET, first conducting layer, PDLC layer, second conducting layer, the transparent film of PET primary color and second PET including the first PET of coincide in proper order, the colorless transparent film of PET with the transparent film of PET primary color is optical anisotropy membrane. The utility model discloses can overcome current membrane of adjusting luminance and look sideways at the big scheduling problem of haze.
Description
Technical Field
The utility model relates to a membrane technical field, concretely relates to car window membrane of adjusting luminance.
Background
With the technical progress and the localization of the light modulation film, the cost of the light modulation film is sharply reduced, and the current selling price of the light modulation film per square meter is less than 300 yuan, which further promotes the wide application of the light modulation film. At present, various manufacturers apply the light modulation film to the automobile, for example, the wide temperature light modulation film of new material science and technology limited in the pearl sea industry has been directly applied to the whole automobile. For the automobile window film market, an automobile dimming window film with excellent performance is not available at present, and the existing automobile dimming window film generally has large open-state side-viewing haze, so that the experience of people in an automobile is relatively poor; the total thickness of the light adjusting film is thick, and the viscosity of the gum is relatively low, so that the problems of high application difficulty, easy falling of the film, easy generation of bubbles and the like are caused; in addition, the commercially available dimming film is generally high in power-off haze and good in shielding performance, once a fault occurs in an automobile, electricity cannot be supplied, and people cannot see the outside, so that the potential safety hazard problem occurs.
SUMMERY OF THE UTILITY MODEL
Not enough to prior art, the utility model aims at providing a car window membrane of adjusting luminance overcomes current membrane of adjusting luminance and looks sideways at the big scheduling problem of haze.
In order to realize the utility model discloses a purpose, the utility model provides a car window membrane of adjusting luminance, it includes that superimposed first PET in proper order leaves type membrane, adhesive layer, PET colorless transparent film, first conducting layer, PDLC layer, second conducting layer, PET primary color transparent film and second PET from type membrane, PET colorless transparent film with PET primary color transparent film is optical anisotropy membrane. The PDLC layer is a polymer dispersed liquid crystal layer and is sandwiched between two conductive layers to form a sandwich structure.
The first conductive layer and the second conductive layer are respectively selected from a polymer conductive film, a nano silver wire conductive film or an ITO conductive film, and preferably are ITO conductive films.
The further technical proposal is that the colorless transparent film of PET and the transparent film of primary color of PET have the thickness of 18 μm to 50 μm respectively. Further, the colorless transparent film of PET and the primary color transparent film of PET have thicknesses of 18 μm to 36 μm, respectively.
The further technical scheme is that the color of the PET primary color transparent film is black, gray or blue. The further technical proposal is that the color of the PET primary color transparent film is black. The color of the colorless and transparent PET film was colorless.
The further technical scheme is that the 45-degree haze value of the PET colorless transparent film is smaller than the 90-degree haze value, and the 45-degree haze value of the PET primary color transparent film is smaller than the 90-degree haze value. The further technical proposal is that the 90-degree haze of the PET colorless transparent film is less than or equal to 1.5 percent, and the 45-degree haze is less than or equal to 1.2 percent; the haze of 90 degrees of the PET primary color transparent film is less than or equal to 3 percent, and the haze of 45 degrees is less than or equal to 2 percent.
Further technical solution is that the first and second PET release films have a thickness of between 50 μm and 100 μm, respectively, and have an adhesive force of between 1gf/25mm and 10gf/25mm, respectively.
The further technical proposal is that the adhesive layer is an acrylic adhesive layer, the thickness of the adhesive layer is 10-30 μm, and the adhesive force between the adhesive layer and the glass is more than or equal to 1000gf/25 mm.
The further technical scheme is that the first conductive layer is plated on the colorless and transparent PET film, the square resistance of the obtained film is 50-150 omega/□, and the visible light transmittance is 75-90%.
The further technical scheme is that the second conductive layer is plated on the PET primary color transparent film, the square resistance of the obtained film is 50-150 omega/□, and the visible light transmittance is 10% -60%. The further technical scheme is that the visible light transmittance of the film obtained by plating the second conductive layer on the PET primary color transparent film is 10-40%.
The further technical scheme is that the thickness of the PDLC layer is 10-15 μm, and the total thickness of the adhesive layer, the PET colorless transparent film, the first conductive layer, the PDLC layer, the second conductive layer and the PET primary color transparent film is less than 120 μm.
The further technical scheme is that the power-off haze of the PDLC layer is less than 92%, the open-state front-view 90-degree haze is less than or equal to 5%, and the open-state side-view 45-degree haze is less than or equal to 8%.
Compared with the prior art, the utility model discloses can gain following beneficial effect:
the utility model discloses a current membrane of adjusting luminance is overcome to car window membrane of adjusting luminance and looks sideways at the big scheduling problem of haze. The utility model discloses a car window membrane optical property that adjusts luminance is excellent, and it is less to look sideways at haze. Specifically, the utility model discloses a colorless transparent film of PET and PET primary color transparent film all have anisotropy, have birefringence promptly, and the 90 degrees haze of orthographic vision of preferred PET membrane is greater than and looks sideways at 45 degrees haze to look sideways at the PDLC haze and compensate, thereby reduce the orthographic side view haze difference of adjusting luminance window membrane, improve the visual angle of car light modulation window membrane.
Further, the utility model discloses a car window membrane of adjusting luminance has solved the problem that current membrane of adjusting luminance has the outage potential safety hazard, and PDLC layer outage haze is < 92%, and PDLC thickness is 10 mu m to 15 mu m, and the outside can still be seen with the help of light difference even the outage to car window membrane of adjusting luminance to no potential safety hazard. And the haze of 90 degrees in the open state is less than or equal to 5 in the front view, and the haze of 45 degrees in the open state is less than or equal to 8 in the side view, so that the whole body is transparent, and the experience of people in the automobile is better.
Further, the utility model discloses a car window membrane of adjusting luminance has PET and leaves the type membrane as the protection film, peels off PET and can paste the membrane of adjusting luminance to current car door window surface through the adhesive linkage after leaving the type membrane, and car window membrane of adjusting luminance pastes the mode and simply swiftly, installs easily. The adhesive layer is preferably made of acrylic acid, the total thickness of the film without a protective film is less than 120 mu m, the adhesive force is good, and the problem that the existing dimming window film is not firmly adhered is solved.
Further, the utility model discloses a membrane of adjusting luminance can adopt the mode of volume to volume continuous production, and preparation cost is lower, and production efficiency is high.
Drawings
Fig. 1 is a schematic structural view of an embodiment of the present invention. In the figure, 1 is a first PET release film, 2 is an acrylic adhesive layer, 3 is a PET colorless transparent film, 4 is a first conductive layer, 5 is a PDLC layer, 6 is a second conductive layer, 7 is a PET primary color transparent film, and 8 is a second PET release film.
The present invention will be described in further detail with reference to the accompanying drawings and specific embodiments.
Detailed Description
The embodiment provides an automobile dimming window film as shown in fig. 1, wherein a first PET release film 1, an acrylic adhesive layer 2, a PET colorless transparent film 3, a first conductive layer 4, a PDLC layer 5, a second conductive layer 6, a PET primary color transparent film 7, and a second PET release film 8 can all adopt existing materials. As an example, the automotive dimming window film may be prepared by the following steps:
the method comprises the following steps: selecting an anisotropic black PET transparent film with the thickness of 36 mu m and an anisotropic colorless PET film with the thickness of 25 mu m;
step two: coating an acrylic adhesive layer on a colorless PET film with the thickness of 25 mu m, and coating a PET release film, wherein the thickness of the acrylic adhesive layer is 20 mu m, and the bonding force with glass is 1600gf/25 mm; the thickness of the PET release film is 100 mu m;
step three: covering a 60-micron-thick PET release film on a 36-micron black PET transparent film;
step four: an ITO film is coated on the black PET transparent film in a magnetron sputtering mode, the sheet resistance is 100 omega/□, the total light transmittance at 90 degrees is 21 percent, the haze is 2.0 percent, the total light transmittance at 45 degrees is 19 percent, and the haze is 1.5 percent;
step five: an ITO film is coated on the PET transparent film in a magnetron sputtering mode, the sheet resistance is 100 omega/□, the total light transmittance at 90 degrees is 81 percent, the haze is 1.2 percent, the total light transmittance at 45 degrees is 80 percent, and the haze is 0.9 percent;
step six: preparing polymer dispersed liquid crystal;
step seven: using roll-to-roll continuous laminating curing equipment to produce a black automobile dimming window film;
step eight: manufacturing an electrode, carrying out photoelectric performance test, and under the 0V off state: haze was 91%; under the 36V electrified state, the total luminous transmittance is 22%, the 90-degree haze is 4.1%, and the 45-degree haze is 6.8%.
From top to bottom, compared with the prior art, the utility model the beneficial effects of the invention lie in, because PDLC orthographic 90 degrees haze is little, it is big to look sideways at 45 degrees haze, current light modulation membrane product all has certain haze of looking sideways at, open state orthographic 90 degrees haze is less than or equal to 5, people's eye sensation is more penetrating, nevertheless open state looks sideways at 45 degrees haze > 10%, open state orthographic side haze difference is great, so the people's eye has very obvious fog sensation, the invention is through selecting for use anisotropic PET, and this PET's orthographic 90 degrees haze is greater than and looks sideways at 45 degrees haze, thereby look sideways at haze to PDLC and compensate, thereby reduce the orthographic side haze difference of light modulation window membrane, improve the visual angle of car light modulation window membrane. In addition, the transparent PET film is coated with an acrylic adhesive layer with strong adhesive force, and the performance of the acrylic adhesive layer is consistent with that of the automobile window film, so that the method for sticking the automobile window film can be completely adopted, and the method is very simple and convenient. The utility model discloses a PDLC layer off-state haze < 92%, with the help of light poor, the shielding nature is good, nevertheless in the car people can stealthy see the outside, so even the car breaks down, people also have the sense of security during the outage, can not have the potential safety hazard problem.
Finally, it should be emphasized that the above-described embodiments are merely preferred embodiments of the present invention, and are not intended to limit the present invention. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (10)
1. An automobile dimming window film is characterized in that:
the PET transparent film comprises a first PET release film, an adhesive layer, a PET colorless transparent film, a first conducting layer, a PDLC layer, a second conducting layer, a PET primary color transparent film and a second PET release film which are sequentially overlapped, wherein the PET colorless transparent film and the PET primary color transparent film are optical anisotropic films.
2. The automotive dimming window film according to claim 1, wherein:
the first conducting layer and the second conducting layer are respectively selected from a polymer conducting film, a nano silver wire conducting film or an ITO conducting film.
3. The automotive dimming window film according to claim 1, wherein:
the PET colorless transparent film and the PET primary color transparent film have a thickness of 18 to 50 μm, respectively;
the PET primary color transparent film is black, gray or blue;
the haze value of 45 degrees of the colorless and transparent PET film is smaller than the haze value of 90 degrees, and the haze value of 45 degrees of the primary color transparent PET film is smaller than the haze value of 90 degrees.
4. The automotive dimming window film according to claim 3, wherein:
the PET colorless transparent film and the PET primary color transparent film have a thickness of 18 to 36 μm, respectively;
the PET primary color transparent film is black;
the haze of the PET colorless transparent film at 90 degrees is less than or equal to 1.5 percent, and the haze at 45 degrees is less than or equal to 1.2 percent; the haze of 90 degrees of the PET primary color transparent film is less than or equal to 3 percent, and the haze of 45 degrees is less than or equal to 2 percent.
5. The automotive dimming window film according to any one of claims 1 to 4, wherein:
the first and second PET release films respectively have a thickness of between 50 to 100 μm, and respectively have an adhesive force of between 1gf/25 to 10gf/25 mm.
6. The automotive dimming window film according to any one of claims 1 to 4, wherein:
the adhesive layer is an acrylic adhesive layer, the thickness of the adhesive layer is 10-30 mu m, and the adhesive force between the adhesive layer and glass is more than or equal to 1000gf/25 mm.
7. The automotive dimming window film according to any one of claims 1 to 4, wherein:
the first conductive layer is plated on the PET colorless transparent film, the square resistance of the obtained film is 50 omega/□ -150 omega/□, and the visible light transmittance is 75-90%;
the second conductive layer is plated on the PET primary color transparent film, the square resistance of the obtained film is 50 omega/□ -150 omega/□, and the visible light transmittance is 10-60%.
8. The automotive dimming window film according to any one of claims 1 to 4, wherein:
the visible light transmittance of the film obtained by plating the second conductive layer on the PET primary color transparent film is 10-40%.
9. The automotive dimming window film according to any one of claims 1 to 4, wherein:
the thickness of the PDLC layer is 10-15 μm, and the total thickness of the adhesive layer, the PET colorless transparent film, the first conductive layer, the PDLC layer, the second conductive layer and the PET primary color transparent film is less than 120 μm.
10. The automotive dimming window film according to any one of claims 1 to 4, wherein:
the power failure haze of the PDLC layer is less than 92%, the open-state front-view 90-degree haze is less than or equal to 5%, and the open-state side-view 45-degree haze is less than or equal to 8%.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021901155.XU CN212846247U (en) | 2020-09-03 | 2020-09-03 | Automobile light-adjusting window film |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021901155.XU CN212846247U (en) | 2020-09-03 | 2020-09-03 | Automobile light-adjusting window film |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212846247U true CN212846247U (en) | 2021-03-30 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202021901155.XU Active CN212846247U (en) | 2020-09-03 | 2020-09-03 | Automobile light-adjusting window film |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN212846247U (en) |
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2020
- 2020-09-03 CN CN202021901155.XU patent/CN212846247U/en active Active
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| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CP03 | Change of name, title or address |
Address after: 519000 room 111, 1st floor, No.6 workshop, No.9 Jinzhu Road, Tangjiawan Town, Zhuhai City, Guangdong Province Patentee after: Zhuhai Shuifa Xingye New Materials Technology Co.,Ltd. Country or region after: China Address before: 519085 room 111, 1st floor, No.6 workshop, No.9 Jinzhu Road, Tangjiawan Town, Xiangzhou District, Zhuhai City, Guangdong Province Patentee before: ZHUHAI SINGYES NEW MATERIALS TECHNOLOGY Co.,Ltd. Country or region before: China |