CN220872694U - P polarized light reflection-increasing film, front windshield and head-up display system - Google Patents
P polarized light reflection-increasing film, front windshield and head-up display system Download PDFInfo
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- CN220872694U CN220872694U CN202322797011.4U CN202322797011U CN220872694U CN 220872694 U CN220872694 U CN 220872694U CN 202322797011 U CN202322797011 U CN 202322797011U CN 220872694 U CN220872694 U CN 220872694U
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- 239000010410 layer Substances 0.000 claims abstract description 223
- 230000002708 enhancing effect Effects 0.000 claims abstract description 42
- 239000000758 substrate Substances 0.000 claims abstract description 38
- 230000003287 optical effect Effects 0.000 claims abstract description 20
- 239000012790 adhesive layer Substances 0.000 claims abstract description 14
- 229910052751 metal Inorganic materials 0.000 claims abstract description 14
- 239000002184 metal Substances 0.000 claims abstract description 14
- 239000011521 glass Substances 0.000 claims description 22
- XLOMVQKBTHCTTD-UHFFFAOYSA-N Zinc monoxide Chemical group [Zn]=O XLOMVQKBTHCTTD-UHFFFAOYSA-N 0.000 claims description 18
- ZKATWMILCYLAPD-UHFFFAOYSA-N niobium pentoxide Inorganic materials O=[Nb](=O)O[Nb](=O)=O ZKATWMILCYLAPD-UHFFFAOYSA-N 0.000 claims description 15
- URLJKFSTXLNXLG-UHFFFAOYSA-N niobium(5+);oxygen(2-) Chemical compound [O-2].[O-2].[O-2].[O-2].[O-2].[Nb+5].[Nb+5] URLJKFSTXLNXLG-UHFFFAOYSA-N 0.000 claims description 15
- BQCADISMDOOEFD-UHFFFAOYSA-N Silver Chemical group [Ag] BQCADISMDOOEFD-UHFFFAOYSA-N 0.000 claims description 9
- 229910001120 nichrome Inorganic materials 0.000 claims description 9
- 229910052709 silver Inorganic materials 0.000 claims description 9
- 239000004332 silver Substances 0.000 claims description 9
- 239000011787 zinc oxide Substances 0.000 claims description 9
- 239000004925 Acrylic resin Substances 0.000 claims description 7
- 229920000178 Acrylic resin Polymers 0.000 claims description 7
- 229920003229 poly(methyl methacrylate) Polymers 0.000 claims description 3
- 239000004926 polymethyl methacrylate Substances 0.000 claims description 3
- 238000002310 reflectometry Methods 0.000 abstract description 14
- 230000001965 increasing effect Effects 0.000 abstract description 9
- 238000001228 spectrum Methods 0.000 abstract description 2
- 230000000052 comparative effect Effects 0.000 description 6
- 230000000694 effects Effects 0.000 description 6
- 239000000463 material Substances 0.000 description 6
- 239000011248 coating agent Substances 0.000 description 3
- 238000000576 coating method Methods 0.000 description 3
- 238000010586 diagram Methods 0.000 description 3
- 210000003128 head Anatomy 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 229910052782 aluminium Inorganic materials 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 208000002173 dizziness Diseases 0.000 description 1
- 239000003292 glue Substances 0.000 description 1
- 238000007756 gravure coating Methods 0.000 description 1
- 238000003384 imaging method Methods 0.000 description 1
- 230000003595 spectral effect Effects 0.000 description 1
- 238000002834 transmittance Methods 0.000 description 1
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Abstract
The application discloses a P polarized light reflection-increasing film, front windshield and head-up display system, wherein the P polarized light reflection-increasing film comprises a substrate layer; the reflection enhancing layer is arranged on one side of the substrate layer and comprises a first high refractive index layer, a medium refractive index layer, a metal layer, a second high refractive index layer and a third high refractive index layer which are sequentially arranged along the direction away from the substrate layer; the optical adhesive layer is arranged on one surface of the reflection enhancing layer, which is away from the substrate layer. The P polarized light reflection increasing film can obviously increase the reflectivity of P polarized light incident from one side of the first high refractive index layer; when the light source is applied to the inner surface of the front windshield, the light source has 17.9% average reflectivity for P polarized light with 62 degrees of incidence angle in the whole spectrum range of 400-700 nm, the reflectivity of the inner surface of the front windshield for P polarized light can be effectively increased, and the ghost problem is solved.
Description
Technical Field
The application belongs to the technical field of head-up display (HUD), and particularly relates to a P polarized light reflection increasing film, front windshield and a head-up display system.
Background
A head-up display (HUD) system, also called head-up display system, is used for projecting important driving information such as speed per hour and navigation onto a windshield in front of a driver, so that the driver can see the important driving information such as speed per hour and navigation without lowering head or turning head as much as possible.
The HUD uses the windshield as a combiner of the virtual image and the real scene, and light from the HUD is reflected to the human eye via the windshield, enabling the driver to see the projected virtual image. The windscreen has a certain thickness, that is to say it has two surfaces. When a beam of light in the optical machine is incident at an oblique angle, the light is reflected and refracted on the first surface of the windshield respectively due to the difference of refractive indexes of air and glass media; the refracted light ray can continue to reflect and refract after reaching the second surface of the glass.
Thus, the same incident light ray will usually be reflected twice on the first and second surfaces of the windshield, and the reflected light rays of the two times will not completely coincide, and the two reflected light rays will reach the human eyes in a staggered form; light reflected by the inner glass layer and the outer glass layer respectively enters eyes at the same time to form two images with the same content and staggered positions. The image reflected by the first surface of the windscreen is the primary image we want, while the image reflected by the second surface is what is known as a ghost image. The existence of double images not only can reduce imaging quality, but also can bring dizziness to viewers, and the driving experience of a driver is affected.
Disclosure of Invention
The application aims to provide a P polarized light reflection increasing film, front windshield and head-up display system, which are used for solving the technical problem that the same incident light beam of a HUD system in the prior art can be reflected twice on the first surface and the second surface of the windshield to cause a ghost phenomenon.
In order to achieve the above purpose, the application adopts a technical scheme that:
provided is a P-polarized light reflection enhancing film comprising:
A substrate layer;
The reflection enhancing layer is arranged on one surface of the substrate layer and comprises a first high refractive index layer, a middle refractive index layer, a metal layer, a second high refractive index layer and a third high refractive index layer which are sequentially arranged along the direction away from the substrate layer, wherein the refractive indexes of the first high refractive index layer and the third high refractive index layer are 2.3-2.5, the refractive index of the second high refractive index layer is 2.0-2.3, and the refractive index of the middle refractive index layer is 1.8-2.0;
and the optical adhesive layer is arranged on one surface of the reflection enhancing layer, which is away from the substrate layer.
In one or more embodiments, the first high refractive index layer and the third high refractive index layer are niobium pentoxide layers, the thickness of the first high refractive index layer is 15 to 25nm, and the thickness of the third high refractive index layer is 45 to 55nm.
In one or more embodiments, the second high refractive index layer is a nichrome layer having a thickness of 0.5 to 1.5nm.
In one or more embodiments, the medium refractive index layer is a zinc oxide layer, and the thickness of the medium refractive index layer is 5 to 15nm.
In one or more embodiments, the metal layer is a silver layer, and the thickness of the metal layer is 10 to 20nm.
In one or more embodiments, the light-emitting diode further comprises a hardening layer, wherein the hardening layer is arranged between the substrate layer and the reflection enhancing layer, the hardening layer is an acrylic resin layer, the refractive index of the hardening layer is 1.5-1.6, and the thickness of the hardening layer is 1-5 um.
In one or more embodiments, the substrate layer is a PET layer, a PC layer, or a PMMA layer.
In one or more embodiments, the first high refractive aluminum layer has a thickness of m 1λ/4n1, the medium refractive layer has a thickness of m 2λ/2n2, the metal layer has a thickness of m 3λ/2n3, the second high refractive layer has a thickness of m 4λ/4n4, and the third high refractive layer has a thickness of m 5λ/4n5; wherein m 1、m2、m3、m4、m5 is a positive number, and n 1、n2、n3、n4、n5 is the refractive index of the medium refractive index layer, the metal layer, the second high refractive index layer, the third high refractive index layer and the optical adhesive layer, respectively.
In order to achieve the above purpose, another technical scheme adopted by the application is as follows:
there is provided a front windshield comprising:
A glass body comprising an inner surface and an outer surface;
The P-polarized light reflection enhancing film according to any one of the above embodiments is fixed on the inner surface by adhesion with the optical adhesive layer.
In order to achieve the above object, another technical scheme adopted by the present application is as follows:
Provided is a head-up display system including:
The windshield according to any one of the above embodiments, wherein the inner surface is provided with a HUD region;
And the light emitting end of the projection light source is aligned with the HUD area, and the projection light source is used for emitting P polarized light to the HUD area at an incident angle of 60-70 degrees.
Compared with the prior art, the application has the beneficial effects that:
The P polarized light reflection increasing film can obviously increase the reflectivity of P polarized light incident from one side of the first high refractive index layer, and particularly, can obtain more obvious reflection increasing effect for the P polarized light incident at a large angle of 60-70 degrees; when the light source is applied to the inner surface of the front windshield, the light source has 17.9% average reflectivity for P polarized light with 62 degrees of incidence angle in the whole spectrum range of 400-700 nm, the reflectivity of the inner surface of the front windshield for P polarized light can be effectively increased, and the ghost problem is solved.
Drawings
FIG. 1 is a schematic view of a structure of an embodiment of a P-polarization antireflection film according to the present application;
FIG. 2 is a schematic view of the structure of an embodiment of the front windshield of the present application;
FIG. 3 is a schematic diagram of a head-up display system according to an embodiment of the present application;
FIG. 4 is a graph showing the reflectance of the front glass having the P-polarization reflection enhancing film of example 1 attached thereto with respect to incident light in the effect example of the present application;
Fig. 5 is a graph showing the reflectance of the front glass having the glass film of comparative example 1 attached thereto with respect to incident light in the effect example of the present application.
Detailed Description
The present application will be described in detail below with reference to the embodiments shown in the drawings. The embodiments are not intended to limit the application, but structural, methodological, or functional modifications of the application from those skilled in the art are included within the scope of the application.
In a heads-up display system, an optical engine projects images such as vehicle speed, rotational speed, navigation path and the like onto a windshield, and light from a projection device is reflected to human eyes by reflection of the windshield, so that a driver can see a projected virtual image.
Since the windshield itself has a certain thickness, it has both an inner surface and an outer surface. When a beam of light in the optical machine is incident at an oblique angle, the light is reflected and refracted on the first surface of the windshield respectively due to the difference of refractive indexes of air and glass media; the refracted light ray can continue to reflect and refract after reaching the second surface of the glass. Therefore, the same incident light ray usually reflects twice on the first surface and the second surface of the windshield, and the reflected light rays of the two times do not completely coincide, and the two reflected light rays reach the human eyes in a staggered mode; light reflected by the inner glass layer and the outer glass layer respectively enters eyes at the same time to form two images with the same content and staggered positions, namely double images are generated.
In order to solve the ghost problem, the applicant developed a P-polarized light antireflection film, which can be attached to the inner surface of a windshield, so as to significantly increase the reflectivity of the inner surface of the windshield to P-polarized light, that is, increase the brightness of two surfaces of the windshield reflecting one of two images, and simultaneously the reflectivity of the outer surface of the windshield to P-polarized light is very low, so that the problem of mutual interference of the two images can be avoided, and the ghost problem is solved.
Specifically, referring to fig. 1, fig. 1 is a schematic structural diagram of an embodiment of a P-polarization reflection enhancing film according to the present application.
As shown in fig. 1, the P-polarized light reflection enhancing film 10 includes a substrate layer 100, a reflection enhancing layer 200 disposed on one side of the substrate layer 100, and an optical adhesive layer 300 disposed on a side of the reflection enhancing layer 200 facing away from the substrate layer 100.
The optical adhesive layer 300 is used for adhering and fixing the P-polarized light reflection enhancing film 10 of the present application to the inner surface of the windshield.
In one embodiment, the substrate layer 100 may be a PET, PC or PMMA material. Preferably, the substrate layer 100 may be made of a PC material, which has the advantages of high strength, high impact strength, good fatigue resistance, good dimensional stability, less creep, and good high transparency, and contributes to improvement of mechanical properties of the reflection enhancing film.
Specifically, the material of the substrate layer 100 may be any other material that can be applied to a glass film substrate in the field, and the thickness of the material may be adjusted based on the actual working condition, so as to ensure the transmittance.
The reflection enhancing layer 200 serves to increase the reflectivity for P-polarized light, thereby achieving a reflection enhancing effect.
In one embodiment, referring to fig. 1, the reflection enhancing layer 200 may include a first high refractive index layer 201, a middle refractive index layer 202, a metal layer 203, a second high refractive index layer 204, and a third high refractive index layer 205 sequentially disposed in a direction away from the substrate layer 100.
Wherein, the refractive index of the first high refractive index layer 201 and the third high refractive index layer 205 may be 2.3 to 2.5, the refractive index of the second high refractive index layer 204 may be 2.0 to 2.3, and the refractive index of the medium refractive index layer 202 may be 1.8 to 2.0.
In one embodiment, the first high refractive index layer 201 and the third high refractive index layer 205 may be made of niobium pentoxide, the thickness of the first high refractive index layer 201 is 15 to 25nm, and the thickness of the third high refractive index layer 205 is 45 to 55nm.
In one embodiment, the second high refractive index layer 204 may be made of nichrome, and the thickness of the second high refractive index layer 204 may be 0.5-1.5 nm.
In one embodiment, the medium refractive index layer 202 may be made of zinc oxide, and the thickness of the medium refractive index layer 202 may be 5 to 15nm.
In one embodiment, the metal layer 203 may be made of silver, and the thickness of the metal layer 203 may be 10 to 20nm.
By adopting the reflection enhancing layer 200 having the above-described structure, the reflectance of P-polarized light incident from the first high refractive index layer 201 side can be significantly increased. In particular, a more remarkable reflection enhancing effect can be obtained for P-polarized light incident at a large angle of 60 to 70 °. When applied to the inner surface of a front windshield, the inner surface of the front windshield has an average reflectivity of at least 17% for P polarized light at an angle of incidence of 60-70 ° over the entire spectral range of 400-700 nm.
As shown in fig. 1, in order to further improve the mechanical properties of the reflection enhancing film while improving the bonding strength of the reflection enhancing layer 200 and the substrate, a stiffening layer 400 is further disposed between the substrate layer 100 and the reflection enhancing layer 200.
Specifically, the stiffening layer 400 may be a coating having a high hardness while having a high bonding force with the reflection enhancing layer 200. In one embodiment, the stiffening layer 400 may be an acrylic resin having a refractive index of 1.5 to 1.6, which may be coated on the surface of the substrate layer 100 by a wet coating (micro-gravure coating), may have a coating thickness of 1 to 5 μm, may have a hardness of 2H (750 g), and may improve durability of the material while maintaining a high bonding force with the reflection enhancing layer 200.
In one embodiment, in order to enable the incident light to generate the interference constructive phenomenon in the reflection enhancing film, so as to further increase the intensity of the reflected light of the reflection enhancing film, the thickness of the first high refractive index layer 201 is m 1λ/4n1, the thickness of the middle refractive index layer 202 is m 2λ/2n2, the thickness of the metal layer 203 is m 3λ/2n3, the thickness of the second high refractive index layer 204 is m 4λ/4n4, and the thickness of the third high refractive index layer 205 is m 5λ/4n5, where m 1、m2、m3、m4、m5 is a positive number, and n 1、n2、n3、n4、n5 is the refractive indexes of the middle refractive index layer 202, the metal layer 203, the second high refractive index layer 204, the third high refractive index layer 205, and the optical adhesive layer 300, respectively.
Specifically, each layer of the reflection enhancing layer 200 has a certain thickness, and when the phase difference of the reflected light on both sides is an even multiple of pi (180 °), interference constructive phenomenon occurs. When light enters the optical dense medium from the optical sparse medium, the phase of the reflected light changes by pi (180 °); when light is incident from the optically dense medium to the optically sparse medium, the reflected light is in the same phase as the incident light. Therefore, when the incident light enters the first high refractive index layer 201, a 180 ° phase difference is generated, and based on the optical path difference of twice the thickness of the reflected light on both sides of the first high refractive index layer 201, it is known that when the thickness of the first high refractive index layer 201 is m 1λ/4n1, the interference constructive phenomenon can be generated on the reflected light on both sides of the first high refractive index layer 201.
Accordingly, the thicknesses of the other layers of the reflection enhancing layer 200 may be calculated so that the reflected light of the reflection enhancing layer 200 can interfere constructively, thereby improving the strength.
The application also provides a front windshield, referring to fig. 2, fig. 2 is a schematic structural view of an embodiment of the front windshield of the application.
As shown in fig. 2, the front windshield 1 includes a glass body 20, and the glass body 20 includes an inner surface 21 and an outer surface 22, wherein the inner surface 21 is provided with the P-polarized light reflection enhancing film 10 of any of the above embodiments.
The P-polarized light reflection enhancing film 10 is fixed on the inner surface of the glass body by bonding an optical adhesive layer, so that when P-polarized light incident from the inner surface 21 of the front windshield 1 is directed, the reflectivity of the inner surface 21 of the front windshield 1 to the P-polarized light is effectively increased, meanwhile, the outer surface 22 of the front windshield 1 normally reflects the P-polarized light, and the intensity of a first image reflected by the inner surface 21 of the front windshield 1 is far stronger than the intensity of a second image reflected by the outer surface 22, thereby effectively solving the ghost problem.
The application also provides a head-up display system, referring to fig. 3, fig. 3 is a schematic structural diagram of an embodiment of the head-up display system of the application.
As shown in fig. 3, the head-up display system includes a projection light source 2, and a front windshield 1 of any of the above embodiments.
Wherein, the inner surface of the front windshield 1 is provided with a HUD area; the light emitting end of the projection light source 2 is aligned with the HUD area and emits P-polarized light to the HUD area at an incident angle of 60 to 70 °.
The effects of the technical scheme of the present application are further detailed below in conjunction with specific examples.
Example 1:
A P polarized light reflection-increasing film comprises a substrate layer, a hardening layer, a reflection-increasing layer and an optical adhesive layer which are sequentially arranged.
Wherein the substrate layer is a PC layer with the thickness of 100 mu m;
The hardened layer is 3 mu m of low refractive index acrylic resin, the model is HC SHCO < 2 >, and the refractive index is 1.5;
The reflection enhancing layer comprises a first niobium pentoxide layer, a nichrome layer, a silver layer, a zinc oxide layer and a second niobium pentoxide layer which are sequentially arranged along the direction away from the substrate layer; wherein, the thickness of the first niobium pentoxide layer is 49.4nm, the thickness of the nichrome layer is 1nm, the thickness of the silver layer is 16nm, the thickness of the zinc oxide layer is 10nm, and the thickness of the second niobium pentoxide layer is 19.14nm.
Example 2:
A P polarized light reflection-increasing film comprises a substrate layer, a hardening layer, a reflection-increasing layer and an optical adhesive layer which are sequentially arranged.
Wherein the substrate layer is a PC layer with the thickness of 100 mu m;
The hardened layer is 3 mu m of low refractive index acrylic resin, the model is HC SHCO < 2 >, and the refractive index is 1.5;
The reflection enhancing layer comprises a first niobium pentoxide layer, a nichrome layer, a silver layer, a zinc oxide layer and a second niobium pentoxide layer which are sequentially arranged along the direction away from the substrate layer; wherein, the thickness of the first niobium pentoxide layer is 45nm, the thickness of the nichrome layer is 1.5nm, the thickness of the silver layer is 10nm, the thickness of the zinc oxide layer is 15nm, and the thickness of the second niobium pentoxide layer is 15nm.
Example 3:
A P polarized light reflection-increasing film comprises a substrate layer, a hardening layer, a reflection-increasing layer and an optical adhesive layer which are sequentially arranged.
Wherein the substrate layer is a PC layer with the thickness of 100 mu m;
The hardened layer is 3 mu m of low refractive index acrylic resin, the model is HC SHCO < 2 >, and the refractive index is 1.5;
The reflection enhancing layer comprises a first niobium pentoxide layer, a nichrome layer, a silver layer, a zinc oxide layer and a second niobium pentoxide layer which are sequentially arranged along the direction away from the substrate layer; wherein, the thickness of the first niobium pentoxide layer is 55nm, the thickness of the nichrome layer is 0.5nm, the thickness of the silver layer is 20nm, the thickness of the zinc oxide layer is 5nm, and the thickness of the second niobium pentoxide layer is 25nm.
Comparative example 1:
The utility model provides a glass pad pasting, includes substrate layer, hardening layer and the optics glue film that sets gradually.
Wherein the substrate layer is a PC layer with the thickness of 100 mu m;
The hardened layer is 3 μm low refractive index acrylic resin, model HC SHCO2, refractive index 1.5.
Effect example:
The films of example 1 and comparative example 1 were attached to the inner surface of the front windshield by an optical adhesive layer, and P polarized light of different wavelengths was then incident to the films of example 1 and comparative example 1 at an angle of 62 ° by a projector, and the reflectance of the inner surface and the outer surface of the front windshield with respect to the incident light was measured, to obtain fig. 4 and 5.
Referring to fig. 4 and 5, fig. 4 is a graph showing the reflectance of the front windshield having the P-polarization reflection enhancing film of example 1 attached thereto with respect to the incident light in the effect example of the present application, and fig. 5 is a graph showing the reflectance of the front windshield having the glass film of comparative example 1 attached thereto with respect to the incident light in the effect example of the present application.
As shown in fig. 5, the front glass having the glass film of comparative example 1 attached thereto had an average reflectance of 4.38% on the inner surface and an average reflectance of 2.45% on the outer surface for incident P-polarized light at an angle of 62 ° in the 400 to 700nm band. The reflectivity of the two surfaces of the front windshield is close, so that images are mutually interfered, and the ghost problem is caused; meanwhile, the reflectivity of the two sides of the front windshield is low, so that the problem of unclear images is caused.
As shown in fig. 4, the average reflectance of the inner surface of the front glass to which the P-polarization reflection enhancing film of example 1 was attached was 17.9% for the incident P-polarization light at an angle of 62 ° in the wavelength band of 400 to 700nm, and the average reflectance of the outer surface was 0.25%.
The average reflectivity of the inner surface of the front windshield for P polarized light is far better than that of the outer surface, so that the mutual influence of the two is effectively eliminated, and the ghost image problem is solved.
The previous description of the disclosure is provided to enable any person skilled in the art to make or use the disclosure. Various modifications to the disclosure will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other variations without departing from the scope of the disclosure. Thus, the disclosure is not limited to the examples and designs described herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.
Claims (9)
1. A P-polarized light reflection enhancing film comprising:
A substrate layer;
The reflection enhancing layer is arranged on one surface of the substrate layer and comprises a first high refractive index layer, a middle refractive index layer, a metal layer, a second high refractive index layer and a third high refractive index layer which are sequentially arranged along the direction away from the substrate layer, wherein the refractive indexes of the first high refractive index layer and the third high refractive index layer are 2.3-2.5, the refractive index of the second high refractive index layer is 2.0-2.3, and the refractive index of the middle refractive index layer is 1.8-2.0;
and the optical adhesive layer is arranged on one surface of the reflection enhancing layer, which is away from the substrate layer.
2. The P-polarized light reflective film according to claim 1, wherein said first high refractive index layer and said third high refractive index layer are niobium pentoxide layers, the thickness of said first high refractive index layer is 15 to 25nm, and the thickness of said third high refractive index layer is 45 to 55nm.
3. The P-polarized light reflective film according to claim 1, wherein said second high refractive index layer is a nichrome layer, and the thickness of said second high refractive index layer is 0.5 to 1.5nm.
4. The P-polarized light reflection film according to claim 1, wherein the medium refractive index layer is a zinc oxide layer, and the thickness of the medium refractive index layer is 5 to 15nm.
5. The P-polarized light reflection film according to claim 1, wherein the metal layer is a silver layer, and the thickness of the metal layer is 10 to 20nm.
6. The P-polarized light reflection enhancing film according to claim 1, further comprising a stiffening layer disposed between the substrate layer and the reflection enhancing layer, wherein the stiffening layer is an acrylic resin layer, and the stiffening layer has a refractive index of 1.5 to 1.6 and a thickness of 1 to 5um.
7. The P-polarized light reflective film according to claim 1, wherein said substrate layer is a PET layer, a PC layer or a PMMA layer.
8. A front windshield comprising:
A glass body comprising an inner surface and an outer surface;
The P-polarized light reflection enhancing film according to any one of claims 1 to 7, which is adhesively fixed to the inner surface by the optical adhesive layer.
9. A heads-up display system, comprising:
The windshield of claim 8, the inner surface being provided with a HUD area;
And the light emitting end of the projection light source is aligned with the HUD area, and the projection light source is used for emitting P polarized light to the HUD area at an incident angle of 60-70 degrees.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322797011.4U CN220872694U (en) | 2023-10-18 | 2023-10-18 | P polarized light reflection-increasing film, front windshield and head-up display system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322797011.4U CN220872694U (en) | 2023-10-18 | 2023-10-18 | P polarized light reflection-increasing film, front windshield and head-up display system |
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| Publication Number | Publication Date |
|---|---|
| CN220872694U true CN220872694U (en) | 2024-04-30 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202322797011.4U Active CN220872694U (en) | 2023-10-18 | 2023-10-18 | P polarized light reflection-increasing film, front windshield and head-up display system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220872694U (en) |
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2023
- 2023-10-18 CN CN202322797011.4U patent/CN220872694U/en active Active
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