Side window ar film, window assembly, and device

Abstract

The application discloses a side window AR film, a window assembly and a device, wherein the AR film comprises a substrate layer, a first metal layer, a first silicon dioxide layer, a first niobium oxide layer, a second metal layer and a second silicon dioxide layer arranged in sequence, wherein the first metal layer and / or the second metal layer for reducing light transmittance has a thickness of 1-30 nm, and the first metal layer and / or the second metal layer is a plating layer obtained by taking Ni and / or Cr as a target material. The application has good light transmission control, and through excellent layer structure design, the window glass has good heat insulation and privacy anti-peeping performance and good safety.

Description

Technical Field

[0001] This invention relates to composite material technology, and in particular to a side window AR film, window assembly, and device. Background Technology

[0002] Existing AR film patents are applied to automotive windshields, offering high transmittance but essentially no heat insulation or privacy features.

[0003] The information disclosed in this background section is intended only to enhance the understanding of the overall background of the invention and should not be construed as an admission or in any way implying that the information constitutes prior art known to those skilled in the art. Summary of the Invention

[0004] The purpose of this invention is to provide a side window AR film, window assembly and device, which has good light transmission control and, through excellent layer structure design, gives the window glass good heat insulation and privacy protection performance, and good security.

[0005] To achieve the above objectives, embodiments of the present invention provide a side-window AR film, comprising a substrate layer, a first metal layer, a first silicon dioxide layer, a first niobium oxide layer, a second metal layer, and a second silicon dioxide layer arranged sequentially, wherein the thickness of the first metal layer and / or the second metal layer for reducing light transmittance is 1-30 nm, and the first metal layer and / or the second metal layer are coatings obtained by using Ni and / or Cr as target materials.

[0006] In one or more embodiments of the present invention, the substrate layer is selected from PET layer, PI layer, TAC, COP layer, and PC layer. Preferably, the substrate layer thickness is 5.7-250 μm.

[0007] In one or more embodiments of the present invention, at least one side of the substrate layer is further coated with a coating layer formed by a coating liquid whose main raw material is acrylic resin, wherein: the coating layer away from the first metal layer is the first coating layer; and / or the coating layer adjacent to the first metal layer is the second coating layer.

[0008] In one or more embodiments of the present invention, the thickness of the second coating layer is 40-320 nm.

[0009] In one or more embodiments of the present invention, the thickness of the first coating layer is 0.3-3.9 μm.

[0010] In one or more embodiments of the present invention, the first metal layer and / or the second metal layer contain 10-75 wt.% Ni, with the balance being Cr and unavoidable impurities.

[0011] In one or more embodiments of the present invention, the thickness of the first silicon dioxide layer is [value missing].

[0012] In one or more embodiments of the present invention, the thickness of the first niobium oxide layer is 5-150 nm.

[0013] In one or more embodiments of the present invention, the thickness of the second silicon dioxide layer is 20-150 nm.

[0014] In one or more embodiments of the present invention, a window assembly includes a main body and a side window AR film formed on the main body, such as the window of a vehicle or ship.

[0015] In one or more embodiments of the present invention, a device having a window includes a body having a window opening and a window assembly, as described above, disposed in the window opening, such as a vehicle, ship, or aircraft.

[0016] Compared with the prior art, the side window AR film, window assembly and device according to the embodiments of the present invention have good light transmission control, and the excellent layer structure design makes the window glass have good heat insulation and privacy protection performance, and good security. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the structure of the side window AR film according to an embodiment of the present invention;

[0018] Figure 2 This is a demand curve according to an embodiment of the present invention;

[0019] Figure 3 This is a demand curve according to an embodiment of the present invention;

[0020] Figure 4 This is a demand curve according to an embodiment of the present invention;

[0021] Figure 5 This is a demand curve according to an embodiment of the present invention;

[0022] Figure 6 This is a demand curve according to an embodiment of the present invention;

[0023] Figure 7 This is a demand curve according to an embodiment of the present invention;

[0024] Figure 8 This is a demand curve according to an embodiment of the present invention. Detailed Implementation

[0025] The specific embodiments of the present invention will be described in detail below, but it should be understood that the scope of protection of the present invention is not limited to the specific embodiments.

[0026] Unless otherwise expressly stated, throughout the specification and claims, the term "comprising" or its variations such as "including" or "comprises" shall be understood to include the stated window components or components, without excluding other window components or other components.

[0027] Including but not limited to the following embodiments, the coating speed is 0.5-2 m / min, which is mainly based on the requirements of coating efficiency of other target sites.

[0028] Example Group 1

[0029] Example 1

[0030] The AR film coating in this embodiment includes a substrate layer, which can be a PET layer as the substrate for the two-layer protective film, with a thickness of 5.7 μm. The coating speed for each layer is 1 m / min. The substrate layer has a second coating layer and a first coating layer on both sides through a coating process (the second and first coating layers are included with the substrate at the factory, the same below). The second and first coating layers are obtained from an acrylic resin coating solution through a coating process. The second coating layer has a coating thickness of 40 nm, and the first coating layer has a coating thickness of 0.3 μm. After coating, a 30 μm high-temperature protective film is laminated to the bottom layer to ensure the protection of the film surface appearance and the stability of the coating during the magnetron sputtering coating process. A first metal layer (10% Ni, balance Cr and unavoidable impurities) with a thickness of 10 nm is deposited on the second coating layer by magnetron sputtering to reduce transmittance. A first silicon dioxide layer with a thickness of 5 nm is deposited on the first metal layer to reduce red color. A first niobium oxide layer (Nb2O5) with a thickness of 5 nm is deposited on the first silicon dioxide layer to reduce reflection. A second metal layer (10% Ni, balance Cr and unavoidable impurities) with a thickness of 5 nm is deposited on the first niobium oxide layer to reduce transmittance. A second silicon dioxide layer (20 nm) with a thickness of 20 nm is deposited on the metal layer to reduce reflection. In the above scheme, the gas used for bombarding the target material in magnetron sputtering is argon. After coating, the neutral color of the bonded glass film is slightly bluish. The requirements are: Konica colorimeter a* value (1.8±1.0), b* value (-3.5±1.5), total light transmittance of 45-55%, reflectance of less than 1.5% in the entire wavelength range of 380-780nm inside the vehicle and less than 0.6% in the wavelength range of 400-700nm, external reflectance of about 50%, and certain heat insulation and privacy functions. The measured values ​​of the Konica colorimeter are a* value of 1.98% and b* value of -4.01. Based on the test indicators: a* value (1.8±1.0) and b* value (-3.5±1.5), it is judged to be OK.

[0031]

[0032] Table 0

[0033] Comparative Example 1

[0034] The difference between this comparative example and Example 1 is that the first metal layer is thinned by 10% and the second metal layer is thickened by 10%. For curve comparison and a* and b value data, see... Figure 2 a and b are shown in Table 1.

[0035]

[0036] Table 1

[0037] Olympus measured a reflectance of 1.13% across the entire 380-780nm wavelength range and 0.55% across the 400-700nm wavelength range. Transmitter measurements showed 53.34% total light transmittance across the 380-780nm wavelength range and 53.07% across the 400-700nm wavelength range. Based on the test criteria of 45-55% total light transmittance inside the vehicle and less than 1.5% reflectance across the entire 380-780nm wavelength range and less than 0.6% reflectance across the 400-700nm wavelength range, the result is considered OK. Konica colorimeter measurements showed an a* value of 6.98% and a b* value of -8.01. Based on the test criteria of (1.8±1.0) a* value and (-3.5±1.5) b* value, the result is considered NG.

[0038] Comparative Example 2

[0039] The difference between this comparative example and Example 1 is that the first metal layer is removed. For curve comparison and a* and b value data, see... Figure 3 See Table 2 for examples a and b.

[0040]

[0041] Table 2

[0042] After removing the first NICR layer from the magnetron sputtering coating, Olympus measured a reflectance of 9.22% across the entire 380-780nm wavelength range and 8.02% across the 400-700nm wavelength range. Transmitter measurements showed 84.3% total light transmittance across the 380-780nm wavelength range and 85.56% across the 400-700nm wavelength range. Based on the test criteria of 45-55% total light transmittance inside the vehicle and less than 1.5% reflectance across the entire 380-780nm wavelength range and less than 0.6% reflectance across the 400-700nm wavelength range, the result is deemed NG (Not Acceptable). Konica colorimeter measurements showed an a* value of 14.24% and a b* value of -7.0. Based on the test criteria of (1.8±1.0) a* value and (-3.5±1.5) b* value, the result is also deemed NG (Not Acceptable).

[0043] Comparative Example 3

[0044] The difference between this comparative example and Example 1 is that the first silicon oxide layer is removed in the magnetron coating. For curve comparison and a* and b value data, see... Figure 4 See Table 3 for a and b.

[0045]

[0046] Table 3

[0047] After removing the first silicon oxide layer with magnetron sputtering, Olympus measured the full-spectrum reflectance at 1.89% (380-780nm) and 1.31% (400-700nm). Transmitter measurements showed 51.53% full light transmittance at 380-780nm and 51.27% at 400-700nm. According to test specifications: 45-55% full light transmittance inside the vehicle, and less than 1.5% reflectance at 380-780nm and less than 0.6% reflectance at 400-700nm. Transmittance is considered OK, but reflectance is considered NG. Konica colorimeter measurements showed an a* value of 8.37% and a b* value of -15.6. According to test specifications: a* value (1.8±1.0) and b* value (-3.5±1.5), NG is deemed appropriate.

[0048] Comparative Example 4

[0049] The difference between this comparative example and Example 1 is that the second silicon oxide layer is thinned by 10%. For curve comparison and a* and b value data, see... Figure 5 See Table 4 for examples a and b.

[0050]

[0051] Table 4

[0052] Due to the low sputtering efficiency of silicon in magnetron sputtering, the coating efficiency was affected. The top silicon layer was thinned by 10%. Olympus measured the full-band reflectance as 1.15% in the 380-780nm range and 0.66% in the 400-700nm range. The transmittance meter measured the full light transmittance as 51.34% in the 380-780nm range and 51.0% in the 400-700nm range. According to the test specifications, the full light transmittance inside the vehicle should be 45-55%, and the full-band reflectance inside the vehicle should be below 1.5% in the 380-780nm range and below 0.6% in the 400-700nm range. The transmittance was deemed OK, but the reflectance was deemed NG. The Konica colorimeter measured the a* value as 0.93%, which was OK, but the b* value as 2.83 was deemed NG according to the test specifications: a* value (1.8±1.0) and b* value (-3.5±1.5).

[0053] Example 2

[0054] The difference between this embodiment and Embodiment 1 is that the thicknesses of the first metal layer, the first silicon dioxide layer, the first niobium oxide layer, the second metal layer, and the second silicon dioxide layer are 15nm, 8nm, 28nm, 5nm, and 85nm, respectively. For a comparison of actual demand curves and a* and b-value data, see [link to relevant documentation]. Figure 6 See Table 5 for examples a and b.

[0055]

[0056] Table 5

[0057] Verification showed that the coating thickness and optical properties met the requirements. Olympus measured a reflectance of 0.88% across the entire 380-780nm wavelength range and 0.4% across the 400-700nm wavelength range. Transmittance meter measurements showed a total light transmittance of 51.48% across the 380-780nm wavelength range and 51.14% across the 400-700nm wavelength range. According to the test specifications: total light transmittance inside the vehicle should be 45-55%, and reflectance inside the vehicle should be below 1.5% across the entire 380-780nm wavelength range and below 0.6% across the 400-700nm wavelength range. This was deemed OK. Konica colorimeter measurements showed an a* value of 1.96% and a b* value of -3.5. According to the test specifications: a* value (1.8±1.0) and b* value (-3.5±1.5), this was deemed OK.

[0058] Example 3

[0059] The difference between this embodiment and Embodiment 1 is that the coating speed is increased by 1%. For a comparison of actual demand curves and a* and b value data, see... Figure 7 See Table 6 for a and b.

[0060]

[0061] Table 6

[0062] A 1% increase in coating speed verifies that the coating thickness and optics meet the requirements. Olympus' measured values ​​show a full-band reflectance of 0.91% in the 380-780nm range and 0.42% in the 400-700nm range. The transmittance meter's measured values ​​show a full light transmittance of 51.47% in the 380-780nm range and 51.13% in the 400-700nm range. According to the test specifications: full light transmittance inside the vehicle should be 45-55%, and the full-band reflectance inside the vehicle should be below 1.5% in the 380-780nm range and below 0.6% in the 400-700nm range. This is considered OK. The Konica colorimeter's measured values ​​show an a* value of 2.47% and a b* value of -3.9. According to the test specifications: a* value (1.8±1.0) and b* value (-3.5±1.5), this is considered OK.

[0063] Example 4

[0064] The difference between this embodiment and Embodiment 1 is that the coating speed is reduced by 1%. For a comparison of actual demand curves and a* and b value data, see... Figure 8 See Table 7 for examples a and b.

[0065]

[0066] Table 7

[0067] A 1% reduction in coating speed verifies that the coating's matching thickness and optical performance meet the requirements. Olympus's measured values ​​show a full-band reflectance of 0.85% in the 380-780nm range and 0.38% in the 400-700nm range. The transmittance meter's measured values ​​show a full light transmittance of 51.49% in the 380-780nm range and 51.14% in the 400-700nm range. According to the test specifications: full light transmittance inside the vehicle should be 45-55%, and the full-band reflectance inside the vehicle should be below 1.5% in the 380-780nm range and below 0.6% in the 400-700nm range. This is considered OK. The Konica colorimeter's measured values ​​show an a* value of 1.48% and a b* value of -3.1. According to the test specifications: a* value (1.8±1.0) and b* value (-3.5±1.5), this is considered OK.

[0068] Example Group 2

[0069] Example 22

[0070] The AR film coating of this embodiment includes a substrate layer, which can be a PET layer as the substrate for the two-layer protective film, and the substrate layer thickness is 5.7 μm. A second coating layer and a first coating layer are respectively applied to both sides of the substrate layer through a coating process. The second coating layer and the first coating layer are obtained by coating with an acrylic resin coating solution. The second coating layer has a coating thickness of 40 nm, and the first coating layer has a coating thickness of 0.3 μm. After coating, a 30 μm high-temperature protective film is laminated to the bottom layer to ensure the protection of the film surface appearance and the stability of the coating during the magnetron sputtering coating process. A first metal layer (75% Ni, balance Cr and unavoidable impurities) with a thickness of 30 nm is deposited on the second coating layer by magnetron sputtering to reduce transmittance. A first silicon oxide layer (SiO2) with a thickness of 5 nm is deposited on the first metal layer to reduce red color. A niobium oxide layer (Nb2O5) with a thickness of 5 nm is deposited on the silicon oxide layer to reduce reflection. A second metal layer (75% Ni, balance Cr and unavoidable impurities) with a thickness of 30 nm is deposited on the niobium oxide layer to reduce transmittance. A second silicon oxide layer (20 nm) with a thickness of 20 nm is deposited on the metal layer to reduce reflection. In the above scheme, the gas used for bombarding the target material in magnetron sputtering is argon. After coating, the neutral color of the bonded glass film is slightly bluish. The requirements are: Konica colorimeter a* value (1.8±1.0), b* value (-3.5±1.5), total light transmittance 45-55%, reflectance inside the vehicle across the entire wavelength range of 380-780nm below 1.5%, and reflectance inside the vehicle of 400-700nm below 0.6%. The measured values ​​of the Konica colorimeter are: a* value 2.78%, b* value -3.01. Based on the test indicators: a* value (1.8±1.0), b* value (-3.5±1.5), it is considered OK.

[0071] Example 23

[0072] The AR film coating of this embodiment includes a substrate layer, which can be a PET layer as the substrate for the two-layer protective film, and the substrate layer thickness is 5.7 μm. A second coating layer and a first coating layer are respectively applied to both sides of the substrate layer through a coating process. The second coating layer and the first coating layer are obtained by coating with an acrylic resin coating solution. The second coating layer has a coating thickness of 40 nm, and the first coating layer has a coating thickness of 0.3 μm. After coating, a 30 μm high-temperature protective film is laminated to the bottom layer to ensure the protection of the film surface appearance and the stability of the coating during the magnetron sputtering coating process. A first metal layer (45% Ni, balance Cr and unavoidable impurities) with a thickness of 20 nm is deposited on the second coating layer by magnetron sputtering to reduce transmittance. A first silicon oxide layer (SiO2) with a thickness of 5 nm is deposited on the first metal layer to reduce red color. A niobium oxide layer (Nb2O5) with a thickness of 5 nm is deposited on the silicon oxide layer to reduce reflection. A second metal layer (45% Ni, balance Cr and unavoidable impurities) with a thickness of 20 nm is deposited on the niobium oxide layer to reduce transmittance. A second silicon oxide layer (20 nm) with a thickness of 20 nm is deposited on the metal layer to reduce reflection. In the above scheme, the gas used for bombarding the target material in magnetron sputtering is argon. After coating, the neutral color of the bonded glass film is slightly bluish. The requirements are: Konica colorimeter a* value (1.8±1.0), b* value (-3.5±1.5), total light transmittance 45-55%, reflectance of less than 1.5% in the 380-780nm wavelength range inside the vehicle and less than 0.6% in the 400-700nm wavelength range. The measured values ​​of the Konica colorimeter are: a* value 1.88% and b* value -3.11. Based on the test indicators: a* value (1.8±1.0) and b* value (-3.5±1.5), it is considered OK.

[0073] Example 24

[0074] The AR film coating of this embodiment includes a substrate layer, which can be a PET layer as the substrate for the two-layer anti-reflective film, and the substrate layer thickness is 250 μm. A second coating layer and a first coating layer are respectively formed on both sides of the substrate layer through a coating process. The second coating layer and the first coating layer are obtained by coating with an acrylic resin coating solution. The coating thickness of the second coating layer is 320 nm, and the coating thickness of the first coating layer is 3.9 μm. A first metal layer (10% Ni, balance Cr and unavoidable impurities) with a thickness of 1 nm is deposited on the second coating layer using a magnetron sputtering process to reduce transmittance. A first silicon oxide layer (SiO2) to reduce red hues is deposited on the first metal layer to reduce transmittance. A niobium oxide layer (Nb2O5) with a thickness of 150 nm to reduce reflection is deposited on the silicon oxide layer. A second metal layer (10% Ni, balance Cr and unavoidable impurities) with a thickness of 1 nm to reduce transmittance is deposited on the niobium oxide layer. A second silicon oxide layer (150 nm) to reduce reflection is deposited on the metal layer. In the above scheme, the gas used for bombarding the target material in magnetron sputtering is argon. After coating, the neutral color of the bonded glass film is slightly bluish. The requirements are: Konica colorimeter a* value (1.8±1.0), b* value (-3.5±1.5), total light transmittance 45-55%, reflectance of less than 1.5% in the 380-780nm wavelength range inside the vehicle and less than 0.6% in the 400-700nm wavelength range. The measured values ​​of the Konica colorimeter are: a* value 0.98% and b* value -4.91. Based on the test indicators: a* value (1.8±1.0) and b* value (-3.5±1.5), it is considered OK.

[0075] Example 25

[0076] The AR film coating of this embodiment includes a substrate layer, which can be a transparent PI layer as the substrate for the two-layer protective film, and the substrate layer thickness is 150 μm. A second coating layer and a first coating layer are respectively applied to both sides of the substrate layer through a coating process. The second coating layer and the first coating layer are obtained by coating with an acrylic resin coating solution. The second coating layer has a coating thickness of 220 nm, and the first coating layer has a coating thickness of 1.9 μm. After coating, a 100 μm high-temperature protective film is laminated to the bottom layer to ensure the protection of the film surface appearance and the stability of the coating during the magnetron sputtering coating process. A first metal layer (25% Ni, balance Cr and unavoidable impurities) with a thickness of 20 nm is deposited on the second coating layer by magnetron sputtering to reduce transmittance. A first silicon oxide layer (SiO2) with a thickness of 100 nm is deposited on the first metal layer to reduce red color. A niobium oxide layer (Nb2O5) with a thickness of 100 nm is deposited on the silicon oxide layer to reduce reflection. A second metal layer (25% Ni, balance Cr and unavoidable impurities) with a thickness of 20 nm is deposited on the niobium oxide layer to reduce transmittance. A second silicon oxide layer (80 nm) with a thickness of 80 nm is deposited on the metal layer to reduce reflection. In the above scheme, the gas used for bombarding the target material in magnetron sputtering is argon. After coating, the neutral color of the bonded glass film is slightly bluish. The requirements are: Konica colorimeter a* value (1.8±1.0), b* value (-3.5±1.5), total light transmittance 45-55%, reflectance of less than 1.5% in the 380-780nm wavelength range inside the vehicle and less than 0.6% in the 400-700nm wavelength range. The measured values ​​of the Konica colorimeter are: a* value 1.68% and b* value -3.06. Based on the test indicators: a* value (1.8±1.0) and b* value (-3.5±1.5), it is considered OK.

[0077] Example 26

[0078] The only difference between the AR film coating in this embodiment and that in Embodiment 1 is that the substrate is a TAC layer. After coating, the neutral color of the laminated glass film surface is slightly bluish. The requirements are: Konica colorimeter a* value (1.8±1.0), b* value (-3.5±1.5), total light transmittance 45-55%, interior reflectance below 1.5% across the 380-780nm wavelength range and below 0.6% within the 400-700nm wavelength range. The actual measured values ​​using a Konica colorimeter are: a* value 1.38%, b* value -1.01. Based on the test indicators: a* value (1.8±1.0), b* value (-3.5±1.5), the result is considered OK.

[0079] Example 27

[0080] The only difference between the AR film coating in this embodiment and that in Embodiment 22 is that the substrate is a TAC layer. After coating, the neutral color of the laminated glass film surface is slightly bluish. The requirements are: Konica colorimeter a* value (1.8±1.0), b* value (-3.5±1.5), total light transmittance 45-55%, interior reflectance below 1.5% across the entire 380-780nm wavelength band and below 0.6% within the 400-700nm wavelength band. The actual measured values ​​using a Konica colorimeter are: a* value 0.98% and b* value -5.00. Based on the test indicators: a* value (1.8±1.0) and b* value (-3.5±1.5), the result is considered OK.

[0081] Example 28

[0082] The only difference between the AR film coating in this embodiment and that in Embodiment 23 is that the substrate can be a TAC layer. After coating, the neutral color of the laminated glass film surface is slightly bluish. The requirements are: Konica colorimeter a* value (1.8±1.0), b* value (-3.5±1.5), total light transmittance 45-55%, interior reflectance below 1.5% across the 380-780nm wavelength range and below 0.6% within the 400-700nm wavelength range. The actual measured values ​​using a Konica colorimeter are: a* value 2.8% and b* value -1.71. Based on the test indicators: a* value (1.8±1.0) and b* value (-3.5±1.5), the result is considered OK.

[0083] Example 29

[0084] The only difference between the AR film coating in this embodiment and that in Embodiment 24 is that the substrate can be a PC layer. After coating, the neutral color of the laminated glass film surface is slightly bluish. The requirements are: Konica colorimeter a* value (1.8±1.0), b* value (-3.5±1.5), total light transmittance 45-55%, interior reflectance below 1.5% across the entire 380-780nm wavelength band, and below 0.6% reflectance below 400-700nm. The actual measured values ​​using a Konica colorimeter are: a* value 1.38%, b* value -4.01. Based on the test indicators: a* value (1.8±1.0), b* value (-3.5±1.5), the result is considered OK.

[0085] Example 30

[0086] The only difference between the AR film coating in this embodiment and that in Embodiment 25 is the substrate COP layer. After coating, the neutral color of the laminated glass film surface is slightly bluish. The requirements are: Konica colorimeter a* value (1.8±1.0), b* value (-3.5±1.5), total light transmittance 45-55%, interior reflectance below 1.5% across the entire 380-780nm wavelength band and below 0.6% within the 400-700nm wavelength band. The actual measured values ​​using a Konica colorimeter are: a* value 2.56%, b* value -3.01. Based on the test indicators: a* value (1.8±1.0), b* value (-3.5±1.5), the result is considered OK.

[0087] Comparative Example 5

[0088] The AR film coating in this comparative example differs from that in Example 1 only in the following aspects: a first metal layer with a thickness of 1 nm (8% Ni, with the remainder being Cr and unavoidable impurities); and a second metal layer with a thickness of 1 nm (8% Ni, with the remainder being Cr and unavoidable impurities). After coating, the neutral color of the bonded glass film surface is slightly bluish. The required values ​​are: Konica colorimeter a* value (1.8±1.0), b* value (-3.5±1.5), total light transmittance 45-55%, interior reflectance below 1.5% across the entire 380-780nm wavelength band, and below 0.6% reflectance in the 400-700nm wavelength band. The actual measured values ​​using a Konica colorimeter are: a* value 5.78%, b* value -10.01. Based on the test indicators: a* value (1.8±1.0), b* value (-3.5±1.5), it is deemed NG (Not Acceptable).

[0089] Comparative Example 6

[0090] The AR film coating in this comparative example differs from that in Example 1 only in the following aspects: a first metal layer with a thickness of 1 nm (80% Ni, with the remainder being Cr and unavoidable impurities); and a second metal layer with a thickness of 1 nm (80% Ni, with the remainder being Cr and unavoidable impurities). After coating, the neutral color of the laminated glass film surface is slightly bluish. The requirements are: Konica colorimeter a* value (1.8±1.0), b* value (-3.5±1.5), total light transmittance 45-55%, reflectance inside the vehicle across the entire wavelength range (380-780nm) below 1.5%, and reflectance within the 400-700nm range below 0.6%. The actual measured values ​​using a Konica colorimeter are: a* value 3.98%, b* value -2.06. Based on the test indicators: a* value (1.8±1.0), b* value (-3.5±1.5), it is deemed NG (Not Acceptable).

[0091] Comparative Example 7

[0092] The AR film coating in this comparative example differs from that in Example 1 only in the following aspects: a first metal layer with a thickness of 0.8 nm (Ni content 10%, balance Cr and unavoidable impurities); and a second metal layer with a thickness of 0.8 nm (Ni content 10%, balance Cr and unavoidable impurities). After coating, the neutral color of the bonded glass film surface is slightly bluish. The requirements are: Konica colorimeter a* value (1.8±1.0), b* value (-3.5±1.5), total light transmittance 45-55%, reflectance inside the vehicle across the entire wavelength range (380-780nm) below 1.5%, and reflectance within the 400-700nm range below 0.6%. The measured values ​​using a Konica colorimeter are: a* value 0.68%, b* value -6.21. Based on the test indicators: a* value (1.8±1.0), b* value (-3.5±1.5), it is deemed NG (Not Acceptable).

[0093] Comparative Example 8

[0094] The AR film coating in this comparative example differs from that in Example 1 only in the following aspects: a first metal layer with a thickness of 40 nm (Ni content 10%, balance Cr and unavoidable impurities); and a second metal layer with a thickness of 40 nm (Ni content 10%, balance Cr and unavoidable impurities). After coating, the neutral color of the bonded glass film surface is slightly bluish. The requirements are: Konica colorimeter a* value (1.8±1.0), b* value (-3.5±1.5), total light transmittance 45-55%, interior reflectance below 1.5% across the entire 380-780nm wavelength band, and below 0.6% reflectance in the 400-700nm wavelength band. The actual measured values ​​using a Konica colorimeter are: a* value 7.73%, b* value -14.01. Based on the test indicators: a* value (1.8±1.0), b* value (-3.5±1.5), it is deemed NG (Not Acceptable).

[0095] The foregoing description of specific exemplary embodiments of the invention is for illustrative and explanatory purposes. These descriptions are not intended to limit the invention to the precise forms disclosed, and it will be apparent that many changes and variations can be made in accordance with the foregoing teachings. The exemplary embodiments were chosen and described in order to explain the specific principles of the invention and its practical application, thereby enabling those skilled in the art to implement and utilize various different exemplary embodiments of the invention, as well as various different choices and variations. The scope of the invention is intended to be defined by the claims and their equivalents.

Claims

1. A side-window AR film, comprising a substrate layer, a first metal layer, a first silicon dioxide layer, a first niobium oxide layer, a second metal layer, and a second silicon dioxide layer disposed sequentially, wherein, The thickness of the first metal layer for reducing light transmittance ranges from 10 to 30 nm, and the thickness of the second metal layer for reducing light transmittance ranges from 5 to 30 nm. The first and second metal layers are coatings obtained by using Ni and Cr as targets. The first metal layer contains 10-75 wt.% Ni, with the balance being Cr and unavoidable impurities. The second metal layer contains 10-75 wt.% Ni, with the balance being Cr and unavoidable impurities. The thickness of the first niobium oxide layer is 5-150 nm, and the thickness of the second silicon dioxide layer is 20-150 nm.

2. The side window AR film as described in claim 1, characterized in that, The substrate layer is selected from PET layer, PI layer, TAC layer, COP layer, and PC layer.

3. The side-window AR film as described in claim 2, characterized in that, At least one side of the substrate layer is further coated with a coating layer formed by a coating liquid whose main raw material is acrylic resin, wherein: The coating layer furthest from the first metal layer is the first coating layer; and / or The coating layer adjacent to the first metal layer is the second coating layer.

4. The side window AR film as described in claim 3, characterized in that, The thickness of the second coating layer is 40-320 nm.

5. The side window AR film as described in claim 3, characterized in that, The thickness of the first coating layer is 0.3-3.9 μm.

6. A window assembly, comprising a body and a side window AR film formed on the body as described in any one of claims 1-5.

7. A device having a window, comprising a body having a window opening and a window assembly as described in claim 6 disposed in the window opening.

Images