Laminated glass and projection system

Abstract

The application provides a laminated glass and a projection system. The laminated glass has a light transmission area and a shielding area; the display area has an S-polarized light reflection spectrum curve for S-polarized light with a wavelength of 380-780 nm at an incident angle of 70°, the S-polarized light reflection spectrum curve has only one extreme point in the wavelength range of 450-650 nm, and has an S-polarized light reflectivity minimum value RLsmin at the extreme point. The laminated glass and the projection system provided by the application can improve the contrast of the display image and the display background, achieve a higher color gamut, and make the image display clearer. In addition, the laminated glass also has a high P-polarized light reflectivity, a smooth P-polarized light reflection spectrum, and a low S-polarized light reflectivity, thereby achieving the effects of reducing the energy consumption of the projector, reducing the reflection interference of the center console, and reducing or eliminating the color deviation in reflection imaging, and further improving the display effect.

Description

TECHNICAL FIELD

[0001] The present application belongs to the technical field of glass, and particularly relates to a laminated glass and a projection system. BACKGROUND

[0002] A vehicle can provide various information to a driver, such as vehicle information, road information, social media information, and even entertainment information, and the information can be generally realized by using a vehicle head-up display (HUD), an instrument panel, a central control screen, a co-driver display screen, and the like or a combination thereof to meet the display requirements of multiple forms, distances, and levels, thereby bringing a more comfortable, safe, intelligent experience and rich information to the driver.

[0003] For the display of the instrument panel, the central control screen, and the like, the driver needs to look down to observe, and the line of sight of the human eye will be temporarily away from the road surface, thereby causing a driving safety hazard. For a traditional head-up display (HUD), a HUD image is displayed in a light transmission area of a front windshield, and an environment outside the vehicle serves as a display background of the HUD image. The brightness of the environment outside the vehicle and other interfering light will affect the observation of the HUD image by the driver, and thus the driving safety and visual comfort are reduced. SUMMARY

[0004] In view of this, the first aspect of the present application provides a laminated glass, the laminated glass having a light transmission area and a shielding area;

[0005] The visible light transmittance of the light transmission area is greater than or equal to 70%, and the visible light transmittance of the shielding area is less than or equal to 5%;

[0006] The shielding area is provided with at least one display area, the display area has a P light reflectance RLp for P polarized light with a wavelength of 380 nm-780 nm incident at an incident angle of 70°, and the RLp is greater than or equal to 25%; the display area has an S light reflectance spectrum curve for S polarized light with a wavelength of 380 nm-780 nm incident at an incident angle of 70°, the S light reflectance spectrum curve has only one extreme point in a wavelength range of 450 nm-650 nm, and has a minimum S light reflectance RLsmin at the extreme point.

[0007] Wherein, the RLsmin is less than or equal to 7.5%, or the RLsmin is less than or equal to 5%, or the RLsmin is less than or equal to 4%, or the RLsmin is less than or equal to 3%.

[0008] Wherein, the RLp is 30%-60%, or the RLp is 35%-55%, or the RLp is 40%-50%.

[0009] The display area has an S-polarized light reflectance RLs for S-polarized light with a wavelength of 380-780 nm at an incident angle of 70°, and a ratio RLp / RLs of the P-polarized light reflectance RLp to the S-polarized light reflectance RLs is greater than or equal to 2.5, or greater than or equal to 3, or greater than or equal to 4, or greater than or equal to 5.

[0010] The display area has an S-polarized light reflectance RLs for S-polarized light with a wavelength of 380-780 nm at an incident angle of 70°, and a ratio RLp / RLs of the P-polarized light reflectance RLp to the S-polarized light reflectance RLs is greater than or equal to 2.5, or greater than or equal to 3, or greater than or equal to 4, or greater than or equal to 5.

[0011] The display area has an S-polarized light reflectance RLs for S-polarized light with a wavelength of 380-780 nm at an incident angle of 70°, and a ratio RLp / RLs of the P-polarized light reflectance RLp to the S-polarized light reflectance RLs is greater than or equal to 2.5, or greater than or equal to 3, or greater than or equal to 4, or greater than or equal to 5.

[0012] The display area has an S-polarized light reflectance RLs for S-polarized light with a wavelength of 380-780 nm at an incident angle of 70°, and a ratio RLp / RLs of the P-polarized light reflectance RLp to the S-polarized light reflectance RLs is greater than or equal to 2.5, or greater than or equal to 3, or greater than or equal to 4, or greater than or equal to 5.

[0013] The display area has an S-polarized light reflectance RLs for S-polarized light with a wavelength of 380-780 nm at an incident angle of 70°, and a ratio RLp / RLs of the P-polarized light reflectance RLp to the S-polarized light reflectance RLs is greater than or equal to 2.5, or greater than or equal to 3, or greater than or equal to 4, or greater than or equal to 5.

[0014] The display area has an S-polarized light reflectance RLs for S-polarized light with a wavelength of 380-780 nm at an incident angle of 70°, and a ratio RLp / RLs of the P-polarized light reflectance RLp to the S-polarized light reflectance RLs is greater than or equal to 2.5, or greater than or equal to 3, or greater than or equal to 4, or greater than or equal to 5.

[0015] The display area has an S-polarized light reflectance RLs for S-polarized light with a wavelength of 380-780 nm at an incident angle of 70°, and a ratio RLp / RLs of the P-polarized light reflectance RLp to the S-polarized light reflectance RLs is greater than or equal to 2.5, or greater than or equal to 3, or greater than or equal to 4, or greater than or equal to 5.

[0016] The display area has an S-polarized light reflectance RLs for S-polarized light with a wavelength of 380-780 nm at an incident angle of 70°, and a ratio RLp / RLs of the P-polarized light reflectance RLp to the S-polarized light reflectance RLs is greater than or equal to 2.5, or greater than or equal to 3, or greater than or equal to 4, or greater than or equal to 5.

[0017] The shielding area includes a bottom shielding area located below the light-transmitting area, the display area is located in the bottom shielding area, the shielding layer in the bottom shielding area is composed of a first shielding sub-layer and a second shielding sub-layer, the material of the first shielding sub-layer is dark ink, and the material of the second shielding sub-layer is an opaque polymer film or a light-adjusting film.

[0018] The laminated glass further comprises a heat insulation layer selected from at least one of a single silver nano coating, a double silver nano coating, a triple silver nano coating, a quadruple silver nano coating, an ITO nano coating, an FTO nano coating, and an infrared blocking micron coating, and the total solar energy transmittance of the laminated glass with the heat insulation layer is less than or equal to 55%.

[0019] The transparent glass sheet with a thickness of 2.1 mm has a visible light transmittance TL0, and the transparent glass sheet provided with the reflective element has a visible light transmittance TL1, TL0≥88%, and TL1≤15%.

[0020] The TL1 and the TL0 satisfy: TL1 / TL0≤0.15, or TL1 / TL0≤0.1, or TL1 / TL0≤0.05, or TL1 / TL0≤0.01, or TL1 / TL0≤0.005, or TL1 / TL0≤0.001.

[0021] The reflective element comprises at least one laminated structure, each laminated structure comprises an absorption layer and a low refractive index layer stacked in sequence along the arrangement direction of the first glass sheet to the second glass sheet, the extinction coefficient of the absorption layer at a wavelength of 550 nm is greater than 0.1, and the refractive index of the low refractive index layer at a wavelength of 550 nm is less than 1.8.

[0022] The extinction coefficient of the absorption layer at a wavelength of 550 nm is ≥0.5, or ≥1, or ≥1.5, or ≥2, or ≥2.5, or ≥3, or ≥3.5.

[0023] The material of the absorption layer is selected from at least one of the single substance or alloy of Si, Ni, Cr, Al, Ti, Nb, Mo, Sn, Zn, Zr, and Mg.

[0024] The physical thickness of the reflective element is 200nm-500nm, or 250nm-450nm, or 300nm-400nm.

[0025] The total physical thickness of the absorption layer in the reflective element is 10nm-100nm, or 25nm-85nm, or 35nm-75nm.

[0026] The physical thickness of the reflective element farthest from the fourth face of the absorbing layer is ≥ 15 nm, or ≥ 20 nm, or ≥ 25 nm.

[0027] The reflective element is directly disposed on the fourth face.

[0028] Alternatively, the fourth face is provided with the shielding layer, and the reflective element is directly disposed on the surface of the shielding layer away from the fourth face.

[0029] Alternatively, the fourth face is provided with an ultra-thin substrate, the ultra-thin substrate has a fifth face facing the fourth face and a sixth face away from the fourth face, the reflective element is directly disposed on the fifth face or the sixth face, the thickness of the ultra-thin substrate is 0.05 mm to 1.0 mm, and the material of the ultra-thin substrate is soda-lime glass, or high-aluminum glass, or lithium-aluminum glass, or borosilicate glass, or polyethylene terephthalate, or polycarbonate.

[0030] The reflective element further comprises a barrier layer disposed between the second glass plate and the laminated structure.

[0031] The material of the barrier layer is selected from at least one of a high-refractive material with a refractive index greater than or equal to 1.8 and a low-refractive material with a refractive index less than 1.8.

[0032] The barrier layer is a single-layer structure, and the material of the single-layer structure is selected from the high-refractive material.

[0033] Alternatively, the barrier layer is composed of a first barrier sub-layer and a second barrier sub-layer stacked, and the materials of the first barrier sub-layer and the second barrier sub-layer are selected from the low-refractive material.

[0034] Alternatively, the barrier layer is composed of a first barrier sub-layer and a second barrier sub-layer stacked, the material of the first barrier sub-layer is selected from the high-refractive material, and the material of the second barrier sub-layer is selected from the low-refractive material.

[0035] The second aspect of the present application provides a projection system, which comprises a projection device and a laminated glass as provided in the first aspect of the present application, the projection device is used to generate projection light, the projection light contains at least 80% of P-polarized light, the projection light is incident into at least one display area in the shielding area at an incident angle of 38° to 85°, and the display area reflects the projection light to form a display image.

[0036] The laminated glass and the projection system provided by the application can meet the use requirements of drivers wearing sunglasses and eliminate the visual ghosting phenomenon of the displayed image, and the shielding layer can be used as a display background of the image display, can better shield external ambient light, avoid unnecessary interference of the line of sight, and can improve the contrast of the displayed image and the display background and achieve a higher color gamut, so that the image display is clearer; and the laminated glass has a high P-polarized light reflectivity, a smooth P-polarized light reflection spectrum, and a low S-polarized light reflectivity, so that the effects of reducing the energy consumption of the projector, reducing the reflection interference of the center console, and reducing or eliminating the color cast in reflection imaging are achieved, and the display effect is improved. BRIEF DESCRIPTION OF DRAWINGS

[0037] In order to more clearly illustrate the technical solutions in the embodiments of the application, the drawings required to be used in the embodiments of the application will be described below.

[0038] Figure 1 A top view schematic diagram of the laminated glass in an embodiment provided by the application.

[0039] Figure 2 A top view schematic diagram of the laminated glass in another embodiment provided by the application.

[0040] Figure 3 A top view schematic diagram of the laminated glass in another embodiment provided by the application.

[0041] Figure 4 A sectional view schematic diagram of the laminated glass provided by the application.

[0042] Figure 5 A partial sectional view schematic diagram of the shielding layer on the second surface provided by the application.

[0043] Figure 6 A partial sectional view schematic diagram of the shielding layer on the fourth surface provided by the application.

[0044] Figure 7 A partial sectional view schematic diagram of the shielding layer composed of the first shielding sub-layer and the second shielding sub-layer provided by the application.

[0045] Figure 8 A sectional view schematic diagram of the laminated glass with a heat insulation layer provided by the application.

[0046] Figure 9 A sectional view schematic diagram of the reflection element with a laminated structure provided by the application.

[0047] Figure 10A cross-sectional view of one example of a reflective element having two stacked structures provided for the present application.

[0048] Figure 11 A cross-sectional view of another example of a reflective element having two stacked structures provided for the present application.

[0049] Figure 12 A partial cross-sectional view of a reflective element provided for the present application on a sixth surface.

[0050] Figure 13 A partial cross-sectional view of a reflective element provided for the present application on a fifth surface.

[0051] Figure 14 A cross-sectional view of one example of a reflective element having a stacked structure and a barrier layer provided for the present application.

[0052] Figure 15 A cross-sectional view of another example of a reflective element having a stacked structure and a barrier layer provided for the present application.

[0053] Figure 16 A plot of P light reflectance spectrum and S light reflectance spectrum of the laminated glass in Comparative Example 1 provided for the present application.

[0054] Figure 17 A plot of P light reflectance spectrum and S light reflectance spectrum of the laminated glass in Comparative Example 2 provided for the present application.

[0055] Figure 18 A plot of P light reflectance spectrum and S light reflectance spectrum of the laminated glass in Example 1 provided for the present application.

[0056] Figure 19 A plot of P light reflectance spectrum and S light reflectance spectrum of the laminated glass in Example 2 provided for the present application.

[0057] Figure 20 A plot of P light reflectance spectrum and S light reflectance spectrum of the laminated glass in Example 3 provided for the present application.

[0058] Figure 21 A plot of P light reflectance spectrum and S light reflectance spectrum of the laminated glass in Example 4 provided for the present application.

[0059] Figure 22 A plot of P light reflectance spectrum and S light reflectance spectrum of the laminated glass in Example 5 provided for the present application.

[0060] Figure 23 A plot of P light reflectance spectrum and S light reflectance spectrum of the laminated glass in Example 6 provided for the present application.

[0061] Figure 24 The P light reflection spectrum and S light reflection spectrum curves of the laminated glass in Example 7 provided for the present application are shown in the following figure.

[0062] Figure 25 The P light reflection spectrum and S light reflection spectrum curves of the laminated glass in Example 8 provided for the present application are shown in the following figure.

[0063] Figure 26 The P light reflection spectrum and S light reflection spectrum curves of the laminated glass in Example 9 provided for the present application are shown in the following figure.

[0064] Figure 27 The P light reflection spectrum and S light reflection spectrum curves of the laminated glass in Example 10 provided for the present application are shown in the following figure.

[0065] Figure 28 The P light reflection spectrum and S light reflection spectrum curves of the laminated glass in Example 11 provided for the present application are shown in the following figure.

[0066] Figure 29 The P light reflection spectrum and S light reflection spectrum curves of the laminated glass in Example 12 provided for the present application are shown in the following figure.

[0067] Explanation of reference numerals: laminated glass 10, light transmission area 101, shielding area 102, bottom shielding area 1021, left side shielding area 1022, top shielding area 1023, right side shielding area 1024, display area 103, first glass plate 11, first surface 111, second surface 112, bonding layer 12, second glass plate 13, third surface 131, fourth surface 132, shielding layer 14, first shielding sub-layer 141, second shielding sub-layer 142, reflecting element 15, blocking layer 150, blocking lower sub-layer 1501, blocking upper sub-layer 1502, first absorbing layer 151, first low refractive index layer 152, first low refractive index lower sub-layer 1521, first low refractive index upper sub-layer 1522, second absorbing layer 153, second low refractive index layer 154, heat insulation layer 16, ultra-thin substrate 17, fifth surface 171, sixth surface 172, connecting layer 18, projection device 20, projection light 201. DETAILED DESCRIPTION

[0068] The following is the preferred embodiment of the present application, it should be noted that for those skilled in the art, without departing from the principles of the present application, can make a number of improvements and refinements, these improvements and refinements are also considered to be within the scope of the present application.

[0069] Unless otherwise stated or contradictory, the terms or phrases used in the present application have the following meanings:

[0070] In the present application, "first", "second", and the like are used only for the purpose of description, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" can explicitly or implicitly include at least one of the features.

[0071] In the present application, "one or more" refers to any one, any two or any two or more of the listed items. Among them, "several" refers to any two or more.

[0072] The value of x in the chemical formula: if it is defined, it shall be determined according to the defined range. If it is not defined, it can be determined according to the stoichiometric deposition, sub-stoichiometric deposition or super-stoichiometric deposition in the magnetron sputtering process.

[0073] Refractive index: the refractive index measured at a wavelength of 550 nm.

[0074] As shown in Figure 1 , Figure 2 and Figure 3 , the present application provides a laminated glass 10, which has a light transmission area 101 and a shielding area 102; the visible light transmittance of the light transmission area 101 is greater than or equal to 70%, and the visible light transmittance of the shielding area 102 is less than or equal to 5%. At least one display area 103 is arranged in the shielding area 102, the display area 103 has a P light reflectance RLp for P polarized light with a wavelength of 380-780 nm incident at an incident angle of 70°, and the RLp≥25%; the display area 103 has an S light reflectance spectrum curve for S polarized light with a wavelength of 380-780 nm incident at an incident angle of 70°, the S light reflectance spectrum curve has only one extreme point in the wavelength range of 450-650 nm, and has an S light reflectance minimum RLsmin at the extreme point.

[0075] The display area 103 in the shielding area 102 described in the present application can display vehicle driving information, various patterns or play videos, etc., and can be used for various scenes such as welcoming, creating atmosphere, watching movies and office work. Optionally, it can be used to display driving parameters, including vehicle speed, engine revolutions, fuel consumption, tire pressure, warning information, driving range, etc., and can also be used to display weather temperature, entertainment information, and can be used as dynamic navigation, night vision, real scene map, etc. The display area 103 is located in the shielding area 102, and the number of display areas 103 can be one as shown in Figure 1 , or four as shown in Figure 2 , other numbers such as two, three or even more can be designed according to actual products.

[0076] In Figure 1 ,Figure 2 and Figure 3 In the above, the shielding area 102 includes a bottom shielding area 1021 located below the light-transmitting area 101, a left shielding area 1022 located to the left of the light-transmitting area 101, a top shielding area 1023 located above the light-transmitting area 101, and a right shielding area 1024 located to the right of the light-transmitting area 101. Preferably, the display area 103 is located within the bottom shielding area 1021.

[0077] To improve the shielding effect of the shielding area 102 and facilitate the observation of the display area 103 by occupants, preferably, the ratio of the total area of ​​the shielding area 102 to the area of ​​the laminated glass 10 is 5% to 50%. Specific examples include 5%, 8%, 10%, 15%, 20%, 25%, 30%, 35%, 40%, 45%, and 50%. More preferably, the ratio of the total area of ​​the shielding area 102 to the area of ​​the laminated glass 10 is 10% to 45%, 15% to 40%, or 20% to 35%, thereby achieving a better balance between the shielding effect of the shielding area 102 and the overall aesthetics of the laminated glass 10.

[0078] To improve the display effect of the display area 103 and facilitate observation of the display area 103 by occupants of the vehicle, the ratio of the total area of ​​the display area 103 to the area of ​​the bottom shielding area 1021 is greater than or equal to 10%. Preferably, the ratio of the total area of ​​the display area 103 to the area of ​​the bottom shielding area 1021 is 10% to 110%, or 15% to 105%, or 20% to 100%, or 30% to 95%, or 40% to 90%, thereby achieving a better balance between the display effect of the display area 103 and the overall aesthetics of the laminated glass 10. Specific examples include 10%, 15%, 20%, 25%, 30%, 35%, 40%, 45%, 50%, 55%, 60%, 65%, 70%, 75%, 80%, 85%, 90%, 95%, 100%, 105%, or 110%, etc. When the number of display areas 103 is greater than or equal to two, the total area of ​​the display areas 103 is equal to the sum of the areas of all display areas 103.

[0079] exist Figure 3 In this design, the display area 103 covers the entire bottom obscuring area 1021, and the upper boundary of the display area 103 is even closer to the top obscuring area 1023 than the upper boundary of the bottom obscuring area 1021. That is, the ratio of the total area of ​​the display area 103 to the area of ​​the bottom obscuring area 1021 is 100% to 110%, so as to form a through-panorama display effect from A-pillar to A-pillar.

[0080] The display area 103 described in the present application has a P light reflectance RLp for P polarized light with a wavelength of 380-780 nm at an incident angle of 70°, and the P light reflectance RLp is ≥25%, preferably, the P light reflectance RLp is 30-60%, which can be exemplified by 25%, 28%, 30%, 32%, 35%, 37%, 40%, 42%, 45%, 48%, 50%, 52%, 55%, 58%, 60%, etc., more preferably, the P light reflectance RLp is 35-55%, more preferably, the P light reflectance RLp is 40-50%, further preferably, the P light reflectance RLp is 42-48%, so as to enhance the brightness of the projection display, improve the energy utilization rate of the projection device 20, and further reduce the energy consumption of the projection device 20, which is beneficial to the miniaturization and heat dissipation design of the projection device 20.

[0081] The display area 103 described in the present application has a S light reflectance spectrum curve for S polarized light with a wavelength of 380-780 nm at an incident angle of 70°, and the S light reflectance spectrum curve has only one extreme point in the wavelength range of 450-650 nm. The S light reflectance spectrum curve in the wavelength range of 450-650 nm can be understood as a U-shaped or U-like curve. The S light reflectance has a minimum value RLsmin at the extreme point, and the minimum value RLsmin is ≤7.5%, which can be exemplified by 7.5%, 7%, 6.5%, 6%, 5.5%, 5%, 4.5%, 4%, 3.5%, 3%, 2.5%, 2%, 1%, etc., preferably, the minimum value RLsmin is ≤5%, more preferably, the minimum value RLsmin is ≤4%, further preferably, the minimum value RLsmin is ≤3%, so as to have a smooth P polarized light reflectance spectrum, reduce the energy consumption of the projector, reduce the reflection interference of the center console, and achieve the effects of less color deviation or no color deviation in reflection imaging and improved display effect.

[0082] The display area 103 described in the present application has S light reflectivity RLs for S polarized light with a wavelength of 380-780 nm at an incident angle of 70°, and the ratio RLp / RLs of the P light reflectivity RLp to the S light reflectivity RLs is ≥2.5, which can be exemplified as 2.5, 2.6, 2.7, 2.8, 2.9, 3.0, 3.1, 3.2, 3.3, 3.4, 3.5, 3.6, 3.7, 3.8, 3.9, 4.0, 4.1, 4.2, 4.3, 4.4, 4.5, 4.6, 4.7, 4.8, 4.9, 5.0, etc., preferably, the ratio RLp / RLs of the P light reflectivity RLp to the S light reflectivity RLs is ≥3, more preferably, the ratio RLp / RLs of the P light reflectivity RLp to the S light reflectivity RLs is ≥4, and further preferably, the ratio RLp / RLs of the P light reflectivity RLp to the S light reflectivity RLs is ≥5, so that the reflectivity of the display area 103 to P polarized light is much greater than the reflectivity of the display area 103 to S polarized light, which can not only enhance the reflection of P polarized light to realize projection display, but also reduce the reflection of S polarized light to weaken or even eliminate the reflection of the console of the display area 103, thereby avoiding interference with the view of the person inside the vehicle.

[0083] In addition, the S light reflectivity RLs is ≤20%, which can be exemplified as 20%, 17%, 15%, 13%, 10%, 8%, 6%, 5%, etc., preferably, the S light reflectivity RLs is ≤15%, more preferably, the S light reflectivity RLs is ≤10%, and further preferably, the S light reflectivity RLs is ≤6%, so that the reflection of the console of the display area 103 can be weakened or even eliminated, thereby avoiding interference with the view of the person inside the vehicle, and also weakening or even eliminating the glare caused by the high projection brightness of the projection device 20, thereby improving the display effect.

[0084] The display area 103 described in the present application has a P light reflectance maximum value RLpmax and a P light reflectance minimum value RLpmin for P polarized light with a wavelength of 450-650 nm incident at an incident angle of 70°, and the difference RLpmax-RLpmin between the P light reflectance maximum value and the P light reflectance minimum value is ≤5%, which can be exemplified by 5%, 4.5%, 4%, 3.5%, 3%, 2.5%, 2%, 1.5%, 1%, 0.5%, etc. Preferably, the difference RLpmax-RLpmin between the P light reflectance maximum value and the P light reflectance minimum value is ≤4%, more preferably the difference RLpmax-RLpmin between the P light reflectance maximum value and the P light reflectance minimum value is ≤3%, further preferably the difference RLpmax-RLpmin between the P light reflectance maximum value and the P light reflectance minimum value is ≤1%, more further preferably the difference RLpmax-RLpmin between the P light reflectance maximum value and the P light reflectance minimum value is ≤0.5%, so as to achieve the effects of reducing the energy consumption of a projector, reducing the reflection interference of a center console, reducing the color cast or eliminating the color cast in reflection imaging, and improving the display effect.

[0085] As shown in Figure 4 The laminated glass 10 includes a first glass plate 11 having a first face 111 and a second face 112, a bonding layer 12, a second glass plate 13 having a third face 131 and a fourth face 132, a shielding layer 14, and a reflective element 15. The bonding layer 12 connects the second face 112 and the third face 131. The shielding layer 14 is disposed in the shielding area 102. The reflective element 15 is disposed in the shielding area 102 and covers at least the display area 103. The shielding layer 14 is located between the first glass plate 11 and the reflective element 15.

[0086] The projection device 20 is configured to generate a projection light 201, the projection light 201 contains at least 80% P-polarized light, the projection light 201 is incident on the display area 103 at an incident angle of 38°-85°, the display area 103 reflects the projection light 201 to form a display image that can be observed by the person in the vehicle, especially for the driver, the image can be observed without bending down, the driver's field of view is better, the line of sight is longer for observing the external situation, at the same time, the necessary information for assisting driving can be obtained more easily, the driving safety is greatly improved, so that the traditional instrument panel can be partially replaced or even completely replaced, and even the traditional instrument panel can be cancelled. At the same time, the shielding area 102 is also commonly referred to as a black border area, the reflective element 15 is arranged in the shielding area 102, and the shielding layer 14 is located between the first glass plate 11 and the reflective element 15, the shielding layer 14 can shield the reflective element 15 in the thickness direction of the laminated glass 10, the shielding layer 14 serves as a display background of the image display, can better shield the external environmental light, avoid unnecessary interference of the line of sight, and can also improve the contrast of the display image and the display background and realize a higher color gamut, so that the image display is clearer.

[0087] Specifically, the first glass plate 11 is an outer glass plate of the laminated glass 10, the first glass plate 11 has a first surface 111 and a second surface 112, the first surface 111 is away from the bonding layer 12 and contacts the external environment, and the second surface 112 is close to the bonding layer 12; the second glass plate 13 is an inner glass plate of the laminated glass 10, the second glass plate 13 has a third surface 131 and a fourth surface 132, the third surface 131 is close to the bonding layer 12, and the fourth surface 132 is away from the bonding layer 12 and contacts the internal environment; and the bonding layer 12 connects the second surface 112 and the third surface 131.

[0088] The first glass plate 11 is transparent glass or colored glass, the thickness of the first glass plate 11 is 0.7mm-4mm, and the visible light transmittance of the first glass plate 11 is greater than or equal to 80%. The second glass plate 13 is transparent glass or colored glass, the thickness of the second glass plate 13 is 0.7mm-4mm, and the visible light transmittance of the second glass plate 13 is greater than or equal to 80%. The total iron content (calculated as Fe2O3) of the transparent glass is less than or equal to 0.1%, even less than or equal to 0.05%, further less than or equal to 0.01%, and the visible light transmittance of the transparent glass is 80%-95%; the total iron content (calculated as Fe2O3) of the colored glass is 0.1%-0.8%, preferably 0.1%-0.5%, and the visible light transmittance of the colored glass is 80%-90%. For example, the first glass plate 11 can be transparent glass with a thickness of 2.1mm and a visible light transmittance of 89%, and the second glass plate 13 can be green glass with a thickness of 1.6mm and a visible light transmittance of 83% or green glass with a thickness of 2.1mm and a visible light transmittance of 80%.

[0089] The adhesive layer 12 is a transparent thermoplastic polymer film or a colored thermoplastic polymer film, and the thickness of the adhesive layer 12 is 0.38 mm to 2.28 mm. For example, the thickness of the adhesive layer 12 can be, but is not limited to, 0.38 mm, 0.76 mm, 1.14 mm, 1.52 mm, 1.9 mm, 2.28 mm, or other values ​​between 0.38 mm and 2.28 mm. The material of the thermoplastic polymer film can be selected from at least one of polyvinyl butyral (PVB), polyurethane (PU), ethylene-vinyl acetate copolymer (EVA), and ionic polymer (SGP). When the adhesive layer 12 is a transparent thermoplastic polymer, the visible light transmittance of the transparent thermoplastic polymer is greater than or equal to 80%. For example, the visible light transmittance of the adhesive layer 12 can be, but is not limited to, 80%, 85%, 90%, or 95%. When the adhesive layer 12 is a colored thermoplastic polymer film, the visible light transmittance of the colored thermoplastic polymer film is greater than or equal to 80%. For example, the visible light transmittance of the adhesive layer 12 can be, but is not limited to, 80%, 85%, or 90%. The colored thermoplastic polymer film can be a gray thermoplastic polymer film, a green thermoplastic polymer film, or a blue thermoplastic polymer film. Exemplarily, the adhesive layer 12 can be a single-layer structure or a multi-layer structure. For example, the multi-layer structure can be a double-layer structure, a triple-layer structure, a quadruple-layer structure, a five-layer structure, etc. The adhesive layer 12 can also have other functions, such as providing at least one colored area as a shade band to reduce the interference of sunlight on the human eye, or adding an infrared absorber to have sun protection or heat insulation functions, or adding an ultraviolet absorber to have ultraviolet protection functions, or having a higher plasticizer content in at least one layer of the multi-layer structure to have sound insulation functions.

[0090] The material of the masking layer 14 is selected from at least one of dark ink, opaque polymer film, and dimming film.

[0091] like Figure 5 and Figure 6 As shown, the dark ink can be ceramic ink or ultraviolet ink. The ceramic ink or ultraviolet ink is printed on the second side 112, the third side 131 and / or the fourth side 132 through processes such as screen printing and inkjet printing. After curing or high-temperature sintering, a masking layer 14 is formed. The thickness of the masking layer 14 formed by the dark ink is 5μm to 40μm.

[0092] The opaque polymer film can be a bulk-colored polymer film, such as adding black or brown coloring components in the polymer film manufacturing process, etc.; can be a polymer film printed with surface ink, paint or pigment, such as printing black ink, black paint or brown pigment on the surface of the polymer film, etc.; can also be a dyed or colored polymer film, such as coloring the polymer film with black or brown dye, etc.; the material of the polymer film can be polyvinyl butyral (PVB), polyethylene terephthalate (PET), polyvinyl chloride (PVC), polycarbonate (PC), polymethyl methacrylate (PMMA), etc.; the opaque polymer film is arranged in the bonding layer 12, for example, the bonding layer 12 can be two pieces of thermoplastic polymer film, and the opaque polymer film is sandwiched between the two pieces of thermoplastic polymer film.

[0093] The light modulation film can be a polymer dispersed liquid crystal film (PDLC), a suspended particle film (SPD), an electrochromic film (EC), a dye liquid crystal film (LC), etc. The minimum visible light transmittance of the light modulation film is less than or equal to 3%, such as 3%, 2%, 1%, 0.5%, 0%. In addition, the maximum visible light transmittance of the light modulation film is set as needed, such as 10%, 20%, 30%, 50%, 70%, 80%, etc. Specifically, for example: the visible light transmittance of the light modulation film can be adjusted between 0% and 20%, can also be adjusted between 0.5% and 50%, can also be adjusted between 0% and 70%, etc. The light modulation film can meet the requirements of visible light transmittance in multiple scenarios, such as when black border display is required, the light modulation film is in an opaque state (visible light transmittance is less than or equal to 3%, or even 0%), which improves the contrast between the display image and the display background, and when no display is performed, the light modulation film is in a transparent state (visible light transmittance is greater than or equal to 70%), which realizes greater area transparency of the vehicle window glass; the light modulation film is arranged in the bonding layer 12, for example, the bonding layer 12 can be two pieces of thermoplastic polymer film, and the light modulation film is sandwiched between the two pieces of thermoplastic polymer film.

[0094] As Figure 7As shown, the shielding layer 14 in the bottom shielding area 1021 is composed of a first shielding sub-layer 141 and a second shielding sub-layer 142. The material of the first shielding sub-layer 141 is dark ink, and the material of the second shielding sub-layer 142 is an opaque polymer film or a dimming film. Preferably, the second shielding sub-layer 142 is a dimming film, which can better meet the requirements of visible light transmittance in multiple scenarios. For example, when an image needs to be displayed, the dimming film is in an opaque state (visible light transmittance is less than or equal to 3%, or even 0%), which improves the contrast between the displayed image and the displayed background. When no display is performed, the dimming film is in a transparent state (visible light transmittance is greater than or equal to 70%), which realizes a larger area of ​​transparency of the laminated glass 10 and improves the field of vision for people inside the vehicle to observe the external environment. Specifically, the first shielding sublayer 141 is directly disposed on the second surface 112, and the second shielding sublayer 142 is disposed in the adhesive layer 12. It is understood that other forms can also be configured according to the actual situation, such as the second shielding sublayer 142 being disposed in the adhesive layer 12 and the first shielding sublayer 141 being directly disposed on the third surface 131, or the second shielding sublayer 142 being disposed in the adhesive layer 12 and the first shielding sublayer 141 being directly disposed on the fourth surface 132.

[0095] like Figure 8 As shown, the laminated glass 10 described in this application further includes a heat insulation layer 16. The heat insulation layer 16 enables the laminated glass 10 to have excellent heat insulation performance, thereby improving the thermal comfort of the vehicle interior environment. Preferably, the total solar transmittance of the laminated glass 10 with the heat insulation layer 16 is less than or equal to 55%, more preferably less than or equal to 50%, and even less than or equal to 45%. The lower the total solar transmittance, the better the heat insulation performance of the laminated glass 10. The heat insulation layer 16 can be disposed on the second surface 112, or in the adhesive layer 12, or on the third surface 131, or on the fourth surface 132; and preferably, the heat insulation layer 16 and the reflective element 15 are not located on the same surface.

[0096] The heat insulation layer 16 can be at least one selected from single silver nano-coating, double silver nano-coating, triple silver nano-coating, quadruple silver nano-coating, ITO nano-coating, FTO nano-coating, and infrared blocking micron coating.

[0097] The single silver nano coating, the double silver nano coating, the triple silver nano coating and the quadruple silver nano coating can be formed by a magnetron sputtering process, and the physical thickness thereof is preferably 100 nm to 500 nm. The single silver nano coating is a transparent nano coating having one silver layer and at least two dielectric layers, the double silver nano coating is a transparent nano coating having two silver layers and at least three dielectric layers, the triple silver nano coating is a transparent nano coating having three silver layers and at least four dielectric layers, and the quadruple silver nano coating is a transparent nano coating having four silver layers and at least five dielectric layers. The material of the dielectric layer is selected from oxides, nitrides or oxynitrides of at least one of Zn, Ti, Si, Al, Sn, Se, Zr, Ni, In, Cr, W, Ca, Y, Nb, Cu and Sm.

[0098] The ITO nano coating can be formed by a magnetron sputtering process, and the physical thickness thereof is preferably 100 nm to 500 nm. The ITO nano coating is a transparent nano coating having at least one ITO (indium tin oxide) functional layer and at least two dielectric layers, and the material of the dielectric layer is selected from oxides, nitrides or oxynitrides of at least one of Zn, Ti, Si, Al, Sn, Se, Zr, Ni, In, Cr, W, Ca, Y, Nb, Cu and Sm. The FTO nano coating can be formed by a chemical vapor deposition process (CVD), and the physical thickness thereof is preferably 50 nm to 500 nm. The FTO nano coating is a transparent nano coating having at least one FTO (fluorine-doped tin oxide) functional layer.

[0099] The infrared barrier micron coating can be formed by a sol-gel method, and the thickness thereof is 5 μm to 30 μm. The infrared barrier micron coating is a transparent micron coating having infrared barrier nanoparticles, and the material of the infrared barrier nanoparticles can be selected from at least one of ITO (indium tin oxide), FTO (fluorine-doped tin oxide), CWO (cesium-doped tungsten oxide), LaB6 (lanthanum hexaboride) and V2O5 (vanadium pentoxide). The average particle size of the infrared barrier nanoparticles is 20 nm to 100 nm.

[0100] In the embodiment shown in Figure 8 , the heat insulation layer 16 and the reflecting element 15 are not located on the same surface, the projection of the reflecting element 15 on the heat insulation layer 16 at least partially overlaps the heat insulation layer 16, and the heat insulation layer 16 is closer to the first surface 111 than the reflecting element 15, which is advantageous for simplifying the production process of the heat insulation layer 16 and the reflecting element 15. Specifically, the heat insulation layer 16 is directly arranged on the third surface 131, and the reflecting element 15 is directly arranged on the fourth surface 132. The present application can also exemplify the embodiment that the heat insulation layer 16 is directly arranged on the second surface 112, and the reflecting element 15 is directly arranged on the fourth surface 132.

[0101] In some other embodiments, the heat insulation layer 16 and the reflecting element 15 are located on the same surface, and the reflecting element 15 and the heat insulation layer 16 do not overlap with each other in the thickness direction of the laminated glass 10, so that the heat insulation layer 16 can avoid reflecting the projected light 201 to interfere with the image formed by the reflecting element 15.

[0102] In some other embodiments, the heat insulation layer 16 and the reflecting element 15 are located on the same surface, and the reflecting element 15 and the heat insulation layer 16 do not overlap with each other, so that the heat insulation layer 16 can avoid reflecting the projected light 201 to interfere with the image formed by the reflecting element 15.

[0103] In some other embodiments, the heat insulation layer 16 and the reflecting element 15 are located on the same surface, and the projection of the reflecting element 15 on the heat insulation layer 16 at least partially overlaps with the heat insulation layer 16, and the heat insulation layer 16 is closer to the first surface 111 than the reflecting element 15. Specifically, the heat insulation layer 16 can be arranged first, and then the reflecting element 15 is arranged on the local surface of the heat insulation layer 16.

[0104] In the present application, when the projection of the reflecting element 15 on the heat insulation layer 16 at least partially overlaps with the heat insulation layer 16, preferably, the transparent glass plate with a thickness of 2.1 mm and a visible light transmittance greater than 88% provided with the reflecting element 15 has a visible light transmittance less than or equal to 30%, which can also be preferably less than or equal to 25%, more preferably less than or equal to 20%, further preferably less than or equal to 15%, more further preferably less than or equal to 10%, even less than or equal to 5%, more even less than or equal to 1%, so that the heat insulation layer 16 can weaken or even eliminate the reflection of the projected light 201 to interfere with the image formed by the reflecting element 15, and to a certain extent, save the use of the shielding layer 14 and even partially replace the shielding layer 14, which is conducive to reducing the manufacturing cost of the laminated glass 10.

[0105] In the present application, the transparent glass plate with a thickness of 2.1 mm has a visible light transmittance TL0 greater than or equal to 88%. The reflecting element 15 with a thickness of 2.1 mm is arranged on the transparent glass plate, so that the transparent glass plate with a visible light transmittance greater than or equal to 88% has a visible light transmittance TL1 less than or equal to 15%, which can be exemplified as 15%, 12%, 10%, 8%, 7%, 5%, 2.5%, 2%, 1.5%, 1%, 0.5%, etc., preferably, the visible light transmittance TL1≤10%, more preferably the visible light transmittance TL1≤5%, further preferably the visible light transmittance TL1≤2%, so that the heat insulation layer 16 can weaken or even eliminate the reflection of the projected light 201 to interfere with the image formed by the reflecting element 15, and to a certain extent, save the use of the shielding layer 14 and even partially replace the shielding layer 14, which is conducive to reducing the manufacturing cost of the laminated glass 10.

[0106] The TL1 and the TL0 satisfy: TL1 / TL0≤0.15, which can be exemplified by 0.15, 0.1, 0.05, 0.01, 0.005, 0.001, etc., preferably, TL1 / TL0≤0.1, more preferably TL1 / TL0≤0.05, further preferably TL1 / TL0≤0.01, or TL1 / TL0≤0.005, or TL1 / TL0≤0.001.

[0107] The reflective element 15 of the present application comprises at least one laminated structure, each of which comprises an absorption layer and a low refractive index layer stacked in sequence, the absorption layer having an extinction coefficient greater than 0.1 at a wavelength of 550 nm light, and the low refractive index layer having a refractive index less than 1.8 at a wavelength of 550 nm light. Wherein, the reflective element 15 can be composed of only one "absorption layer / low refractive index layer" laminated structure, or can comprise at least two laminated structures, for example, as shown in Figure 10 two laminated structures; or, three laminated structures; or, four laminated structures.

[0108] The extinction coefficient of the absorption layer at a wavelength of 550 nm light can be 0.1, 0.15, 0.2, 0.3, 0.4, 0.5, 1, 1.5, 2, 2.5, 3, 3.5, etc., preferably, the extinction coefficient of the absorption layer at a wavelength of 550 nm light is ≥0.5, more preferably the extinction coefficient of the absorption layer at a wavelength of 550 nm light is ≥1, further preferably the extinction coefficient of the absorption layer at a wavelength of 550 nm light is ≥1.5, or ≥2, or ≥2.5, or ≥3, or ≥3.5. The material of the absorption layer is selected from at least one of the single substance or alloy of Si, Ni, Cr, Al, Ti, Nb, Mo, Sn, Zn, Zr, Mg. For example, NiCr, Si, TiZr, etc. In order to better achieve the optical performance, mechanical performance and appearance color of the reflective element 15, which meet the comprehensive requirements of the vehicle window glass, the low refractive index layer can be a single layer structure, or a multi-layer structure, for example, comprising at least two low refractive index sub-layers. Specifically, as shown in Figure 11 the first low refractive index layer 152 is composed of the first low refractive index lower sub-layer 1521 and the first low refractive index upper sub-layer 1522 stacked.

[0109] The physical thickness of the reflective element 15 described in the present application is 200-500 nm, and can be exemplified by 200 nm, 250 nm, 300 nm, 350 nm, 400 nm, 450 nm, 500 nm, etc. Preferably, the physical thickness of the reflective element 15 is 250-450 nm, and more preferably the physical thickness of the reflective element 15 is 300-400 nm. The total physical thickness of the absorbing layer in the reflective element 15 is 10-100 nm, and can be exemplified by 10 nm, 12 nm, 15 nm, 18 nm, 20 nm, 25 nm, 30 nm, 35 nm, 40 nm, 45 nm, 50 nm, 55 nm, 60 nm, 65 nm, 70 nm, 75 nm, 80 nm, 85 nm, 90 nm, 95 nm, 100 nm, etc. Preferably, the total physical thickness of the absorbing layer is 25-85 nm, and more preferably the total physical thickness of the absorbing layer is 35-75 nm.

[0110] In addition, the physical thickness of the absorbing layer in the reflective element 15 that is farthest from the fourth surface 132 is ≥ 15 nm, and can be exemplified by 15 nm, 20 nm, 25 nm, 30 nm, etc. Preferably, the physical thickness of the absorbing layer in the reflective element 15 that is farthest from the fourth surface 132 is ≥ 20 nm, and more preferably the physical thickness of the absorbing layer in the reflective element 15 that is farthest from the fourth surface 132 is ≥ 25 nm. Alternatively, the physical thickness of the absorbing layer in the reflective element 15 that is farthest from the fourth surface 132 is ≤ 60 nm, or ≤ 55 nm, or ≤ 50 nm, or ≤ 45 nm, or ≤ 40 nm.

[0111] The total physical thickness of the low-refractive layer in the reflective element is 100-450 nm, and can be exemplified by 100 nm, 150 nm, 200 nm, 250 nm, 300 nm, 350 nm, 400 nm, 450 nm, etc. Preferably, the total physical thickness of the low-refractive layer is 200-400 nm, and more preferably the total physical thickness of the low-refractive layer is 250-375 nm. In addition, the ratio between the total physical thickness of the absorbing layer of the low-refractive layer and the total physical thickness of the absorbing layer in the reflective element is 2-15, and can be exemplified by 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, etc. Preferably, the ratio between the total physical thickness of the absorbing layer of the low-refractive layer and the total physical thickness of the absorbing layer is 2.5-10.

[0112] The reflective element 15 includes two stacked structures: a first absorption layer, a first low-refractive-index layer, a second absorption layer, and a second low-refractive-index layer. The ratio of the physical thickness of the second absorption layer to the physical thickness of the first absorption layer is 1.5 to 4, and / or the ratio of the physical thickness of the second low-refractive-index layer to the physical thickness of the first low-refractive-index layer is 0.7 to 1.2. Specific examples of the ratio between the physical thickness of the second absorption layer and the physical thickness of the first absorption layer include 1.5, 2, 2.5, 3, 3.5, and 4. Specific examples of the ratio between the physical thickness of the second low-refractive-index layer and the physical thickness of the first low-refractive-index layer include 0.7, 0.8, 0.9, 1, 1.1, and 1.2.

[0113] The reflective element 15 comprises three stacked structures: a first absorption layer, a first low-refractive-index layer, a second absorption layer, a second low-refractive-index layer, a third absorption layer, and a third low-refractive-index layer. The ratio of the physical thickness of the second absorption layer to the physical thickness of the first absorption layer is 0.7–5, and / or the ratio of the physical thickness of the third absorption layer to the physical thickness of the second absorption layer is 1–2, and / or the ratio of the physical thickness of the second low-refractive-index layer to the physical thickness of the first low-refractive-index layer is 0.8–4, and / or the ratio of the physical thickness of the third low-refractive-index layer to the physical thickness of the second low-refractive-index layer is 0.7–1.2. Specific examples of the ratio of the physical thickness of the second absorption layer to the physical thickness of the first absorption layer include 0.7, 1, 1.5, 2, 2.5, 3, 3.5, 4, 4.5, and 5. Specific examples of the ratio of the physical thickness of the third absorption layer to the physical thickness of the second absorption layer include 1, 1.2, 1.4, 1.6, 1.8, and 2. Examples of specific ratios between the physical thickness of the second low-refractive-index layer and the physical thickness of the first low-refractive-index layer include 0.8, 1, 1.5, 2, 2.5, 3, 3.5, and 4. Examples of specific ratios between the physical thickness of the third low-refractive-index layer and the physical thickness of the second low-refractive-index layer include 0.7, 0.8, 0.9, 1, 1.1, and 1.2.

[0114] like Figure 5 As shown, the reflective element 15 described in this application is directly disposed on the fourth surface 132. Alternatively, as... Figure 6 As shown, the shielding layer 14 is disposed on the fourth surface 132, and the reflective element 15 is directly disposed on the surface of the shielding layer 14 opposite to the fourth surface 132. Alternatively, as... Figure 12 and Figure 13As shown, or, an ultrathin substrate 17 is provided on the fourth surface 132. The ultrathin substrate 17 has a fifth surface 171 facing the fourth surface 132 and a sixth surface 172 facing away from the fourth surface 132. The reflective element 15 is directly disposed on the fifth surface 171 or the sixth surface 172. The thickness of the ultrathin substrate 17 is 0.05 mm to 1.0 mm. The material of the ultrathin substrate 17 is soda-lime glass, or high-alumina glass, or lithium aluminum glass, or borosilicate glass, or polyethylene terephthalate, or polycarbonate.

[0115] When the reflective element 15 described in this application is directly disposed on the fourth surface 132, such as Figure 9 As shown, the reflective element 15 can be composed of only one stacked structure, namely, a first absorption layer 151 and a first low refractive index layer 152 stacked sequentially; or, as shown... Figure 10 As shown, the high-low refractive index stack consists of two stacked structures, namely, a first absorption layer 151, a first low refractive index layer 152, a second absorption layer 153, and a second low refractive index layer 154 stacked sequentially; or, the high-low refractive index stack consists of three stacked structures, namely, a first absorption layer 151, a first low refractive index layer 152, a second absorption layer 153, a second low refractive index layer 154, a third absorption layer, and a third low refractive index layer stacked sequentially. Preferably, the layer in the reflective element 15 that is in direct contact with the fourth surface 132 is the absorption layer, that is, the first absorption layer 151 is in direct contact with the fourth surface 132, and the layer in the reflective element 15 that is furthest from the fourth surface 132 is the low refractive index layer, that is, the layer in the reflective element 15 that is in contact with air is the low refractive index layer.

[0116] When the reflective element 15 is disposed on the sixth surface 172 of the ultrathin substrate 17, the projected light 201 directly forms a reflected image, which is clearer and free of ghosting. Alternatively, when the reflective element 15 is disposed on the fifth surface 171 of the ultrathin substrate 17, the ultrathin substrate 17 can better protect the reflective element 15. Due to the extremely thin thickness of the ultrathin substrate 17, the reflected sub-image formed by the high-angle incident projected light 201 on the sixth surface 172 almost coincides with the reflected primary image formed by the reflective element 15, making the reflected image visually free of ghosting.

[0117] like Figure 12 As shown, when the reflective element 15 is disposed on the sixth surface 172 of the ultrathin substrate 17, the shielding layer 14 is disposed on the fourth surface 132, and the connecting layer 18 is disposed between the shielding layer 14 and the ultrathin substrate 17 for bonding and connecting the shielding layer 14 and the ultrathin substrate 17. Alternatively, as... Figure 13 As shown, when the reflective element 15 is disposed on the fifth surface 171 of the ultrathin substrate 17, the connecting layer 18 is disposed between the fourth surface 132 and the reflective element 15, and is used to bond the fourth surface 132 and the reflective element 15 together.

[0118] The material of the connecting layer 18 can be the same as that of the thermoplastic interlayer, such as PVB, EVA, or SGP, or it can be an adhesive, such as OCA (Optically Clear Adhesive) or SCA (Solid Optically Clear Adhesive). When the connecting layer 18 is transparent, the visible light transmittance of the transparent thermoplastic polymer is greater than or equal to 70%. For example, the visible light transmittance of the connecting layer 18 can be, but is not limited to, 70%, 80%, or 90%. When the connecting layer 18 is opaque, for example, the visible light transmittance of the connecting layer 18 is less than or equal to 60%. For example, the visible light transmittance of the connecting layer 18 can be, but is not limited to, 50%, 40%, 30%, 20%, or 10%. Preferably, the connecting layer 18 is opaque, with a visible light transmittance of less than or equal to 5%.

[0119] The reflective element 15 described in this application further includes a barrier layer 150 disposed between the second glass plate 13 and the stacked structure. The reflective element 15 may be composed of only one stacked structure, wherein the reflective element 15 is a barrier layer 150, a first absorption layer 151, and a first low refractive index layer 152 stacked in sequence, that is, the barrier layer 150 is in direct contact with the fourth surface 132.

[0120] The material of the barrier layer 150 is selected from at least one of high refractive index materials with a refractive index greater than or equal to 1.8 and low refractive index materials with a refractive index less than 1.8. The high refractive index material of the barrier layer 150 is selected from nitrides, oxides, or oxynitrides of at least one element selected from Zn, Sn, Ti, Si, Al, Ni, Cr, Nb, Mg, Zr, Ga, Y, In, Sb, V, and Ta. Specific examples include SiNx, TiOx, NbOx, TiNx, ZnSnOx, AZO, and ZrOx. The low refractive index material of the barrier layer 150 is selected from oxides composed of one or more elements selected from Al, Mg, Zn, Si, Zr, Sn, Ca, and V. Specific examples include Al2O3 and SiO2.

[0121] Among them, such as Figure 14As shown, the barrier layer 150 is a single layer structure, and the material of the single layer structure is selected from the high refractive index material. In order to better achieve the optical performance, mechanical performance, and appearance color of the reflective element 15, and to meet the comprehensive requirements of the vehicle window glass, the barrier layer 150 can be a single layer structure, or a multi-layer structure, for example, including at least two barrier sub-layers. For example, the barrier layer 150 is composed of a first barrier sub-layer and a second barrier sub-layer arranged in layers, and the materials of the first barrier sub-layer and the second barrier sub-layer are selected from the low refractive index material. Alternatively, the barrier layer 150 is composed of a first barrier sub-layer and a second barrier sub-layer arranged in layers, and the material of the first barrier sub-layer is selected from the high refractive index material, and the material of the second barrier sub-layer is selected from the low refractive index material. Specifically, as shown in the first embodiment of the present application, Figure 15 As shown, the barrier layer 150 is composed of a barrier lower sub-layer 1501 and a barrier upper sub-layer 1502 arranged in layers.

[0122] The present application also provides a projection system, which includes a projection device 20 and the laminated glass 10 provided by the present application, and the projection device 20 is used to generate projection light 201, the projection light 201 contains at least 80% of P-polarized light, and the projection light 201 is incident into at least one display area 103 in the shielding area 102 at an incident angle of 38°-85°, and the display area 103 reflects the projection light 201 to the eyes of the people in the vehicle to form a display image.

[0123] The wavelength of the projection light 201 can be in the range of 380nm-780nm. The projection light 201 can contain at least 80% of P-polarized light, and the higher the proportion of P-polarized light in the projection light 201, the more conducive to meeting the use requirements of the driver wearing sunglasses and the easier to eliminate the visual ghosting phenomenon of the display image. For example, the projection light 201 contains at least 85% of P-polarized light, or the projection light 201 contains at least 90% of P-polarized light, or the projection light 201 contains at least 95% of P-polarized light, or even the projection light 201 is 100% P-polarized light, that is, the projection light 201 is basically pure P-polarized light.

[0124] The present application also provides a vehicle, which includes a vehicle body and the projection system provided by the present application, and the projection device of the projection system is installed inside the vehicle body, and the laminated glass of the projection system is installed at the opening of the vehicle body. When the laminated glass is installed on the vehicle, it is preferably used as the front windshield of the vehicle. However, it is not limited to this, and the laminated glass can also be used as the rear windshield or the side window glass, thereby providing more display scene applications for the vehicle.

[0125] In order to make the purpose and advantages of the present application more clear, the effects of the laminated glass of the present application will be further described in detail below in combination with specific embodiments.

[0126] In Comparative Example 1-2 and Example 1-12, a reflective element was provided on a glass substrate.

[0127] A transparent glass plate having a thickness of 2.1 mm and a visible light transmittance of 90% was prepared, and a reflective element of Comparative Example 1-2 and Example 1-12 was deposited on the surface of the transparent glass plate, the specific film layer materials and physical thicknesses being as follows:

[0128] Comparative Example 1: Glass substrate / first high refractive index layer (TSO 23 nm) / second low refractive index layer (SiO2 112 nm) / third high refractive index layer (TZO 80 nm) / fourth low refractive index layer (SiO2 98 nm), the reflective element in Comparative Example 1 not containing an absorbing layer. Optionally, in the TZO, the ratio of Ti to Zr is 65 wt%: 35 wt%. In the TSO, the ratio of Ti to Si is 92 wt%: 8 wt%.

[0129] Comparative Example 2: Glass substrate / first high refractive index layer (TiO2 57 nm) / second low refractive index layer (SiO2 132 nm) / third high refractive index layer (TiO2 59 nm), the reflective element in Comparative Example 2 not containing an absorbing layer.

[0130] Example 1: Glass substrate / first absorbing layer (NiCr 9 nm) / first low refractive index layer (SiO2 135 nm) / second absorbing layer (NiCr 21 nm) / second low refractive index layer (SiO2 105 nm).

[0131] Example 2: Glass substrate / first absorbing layer (NiCr 11 nm) / first low refractive index layer (Al2O3 100 nm) / second absorbing layer (NiCr 22 nm) / second low refractive index layer (SiO2 106 nm).

[0132] Example 3: Glass substrate / first absorbing layer (NiCr 11 nm) / first low refractive index lower sublayer (Al2O3 65 nm) / first low refractive index upper sublayer (SiO2 50 nm) / second absorbing layer (NiCr 21 nm) / second low refractive index layer (SiO2 104 nm).

[0133] Example 4: Glass substrate / barrier lower sublayer (Al2O3 91 nm) / barrier upper sublayer (SiO2 32 nm) / first absorbing layer (NiCr 10 nm) / first low refractive index lower sublayer (Al2O3 39 nm) / first low refractive index upper sublayer (SiO2 81 nm) / second absorbing layer (NiCr 22 nm) / second low refractive index layer (SiO2 104 nm).

[0134] Example 5: glass substrate / barrier layer (SiNx 45 nm) / first absorbing layer (NiCr 8 nm) / first low refractive index layer (Al203 100 nm) / second absorbing layer (NiCr 20 nm) / second low refractive index layer (Si02 99 nm).

[0135] Example 6: glass substrate / barrier lower sub-layer (SiNx 65 nm) / barrier upper sub-layer (Si02 66 nm) / first absorbing layer (NiCr 7 nm) / first low refractive index layer (Si02 134 nm) / second absorbing layer (NiCr 21 nm) / second low refractive index layer (Si02 109 nm).

[0136] In particular, the reflective elements in Examples 1-6 comprise two stack structures, each stack structure comprising an absorbing layer and a low refractive index layer stacked in sequence, the low refractive index layer having a refractive index less than 1.8, and the absorbing layer having an extinction coefficient of 3.5 at 550 nm. The material of the absorbing layer is selected from at least one of the single elements or alloys of Si, Ni, Cr, Al, Ti, Nb, Mo, Sn, Zn, Zr, Mg, such as NiCr, Si, TiZr, etc. The physical thickness of the absorbing layer farthest from the glass substrate in the reflective elements in Examples 1-6, i.e. the second absorbing layer, is greater than or equal to 15 nm, preferably greater than or equal to 20 nm. The first low refractive index layer in Example 3 and Example 6 comprises two sub-layers, i.e. a first low refractive index lower sub-layer and a first low refractive index upper sub-layer.

[0137] The barrier layer of Example 4 comprises two sub-layers, each sub-layer being a low refractive index material, i.e. a barrier lower sub-layer and a barrier upper sub-layer. The barrier layer of Example 5 is a single layer structure, the material of which is a high refractive index material. The barrier layer of Example 6 comprises two sub-layers, i.e. a barrier lower sub-layer and a barrier upper sub-layer, the material of the barrier lower sub-layer being a high refractive index material, and the material of the barrier upper sub-layer being a low refractive index material.

[0138] Example 7: glass substrate / first absorbing layer (NiCr 23 nm) / first low refractive index layer (Si02 44 nm) / second absorbing layer (NiCr 23 nm) / second low refractive index layer (Si02 125 nm) / third absorbing layer (NiCr 31 nm) / third low refractive index layer (Si02 98 nm).

[0139] Example 8: glass substrate / first absorbing layer (NiCr 27 nm) / first low refractive index layer (Al203 39 nm) / second absorbing layer (NiCr 24 nm) / second low refractive index layer (Si02 94 nm) / third absorbing layer (NiCr 29 nm) / third low refractive index layer (Si02 102 nm).

[0140] Example 9: glass substrate / first absorbing layer (NiCr 31 nm) / first low refractive index lower sub-layer (Al203 27 nm) / first low refractive index upper sub-layer (Si02 14 nm) / second absorbing layer (NiCr 23 nm) / second low refractive index lower sub-layer (Al203 59 nm) / second low refractive index upper sub-layer (Si02 51 nm) / third absorbing layer (NiCr 28 nm) / third low refractive index layer (Si02 105 nm).

[0141] Example 10: glass substrate / barrier layer (SiNx 31 nm) / first absorbing layer (NiCr 6 nm) / first low refractive index layer (Si02 117 nm) / second absorbing layer (NiCr 16 nm) / second low refractive index layer (Si02 139 nm) / third absorbing layer (NiCr 23 nm) / third low refractive index layer (Si02 105 nm).

[0142] Example 11: glass substrate / barrier layer (SiNx 33 nm) / first absorbing layer (NiCr 7 nm) / first low refractive index layer (Al203 96 nm) / second absorbing layer (NiCr 17 nm) / second low refractive index layer (Al203 105 nm) / third absorbing layer (NiCr 24 nm) / third low refractive index layer (Si02 110 nm).

[0143] Example 12: glass substrate / barrier layer (SiNx 32 nm) / first absorbing layer (NiCr 4 nm) / first low refractive index lower sub-layer (Al203 45 nm) / first low refractive index upper sub-layer (Si02 87 nm) / second absorbing layer (NiCr 18 nm) / second low refractive index lower sub-layer (Al203 66 nm) / second low refractive index upper sub-layer (Si02 50 nm) / third absorbing layer (NiCr 25 nm) / third low refractive index layer (Si02 108 nm).

[0144] In particular, the reflective elements in Examples 7-12 comprise three stack structures, each stack structure comprising an absorbing layer and a low refractive index layer stacked in sequence, the low refractive index layer having a refractive index less than 1.8, and the absorbing layer having an extinction coefficient of 3.5 at 550 nm. The absorbing layer farthest from the glass substrate in the reflective elements in Examples 7-12, i.e. the third absorbing layer, has a physical thickness greater than or equal to 15 nm, preferably greater than or equal to 20 nm, more preferably greater than or equal to 25 nm. The first low refractive index layer in Example 9 and Example 12 comprises two sub-layers, i.e. a first low refractive index lower sub-layer and a first low refractive index upper sub-layer. The second low refractive index layer in Example 9 and Example 12 comprises two sub-layers, i.e. a second low refractive index lower sub-layer and a second low refractive index upper sub-layer. The barrier layer in Examples 10-12 is a single layer structure, and the material thereof is a high refractive index material.

[0145] The 2.1 mm thick transparent glass plate with the film layer structure of Comparative Example 1-2 and Example 1-12 was subjected to high temperature heat treatment at least 500°C, and then the visible light transmittance was measured, and the measurement results were recorded in Table 1.

[0146] Visible light transmittance: measured and calculated according to ISO 9050 in the wavelength range of 380 nm to 780 nm.

[0147] Table 1: Visible light transmittance of the transparent glass plate with the reflective element of Comparative Example 1-2 and Example 1-12

[0148]

[0149]

[0150] As can be seen from Table 1, the transparent glass plate with a thickness of 2.1 mm has a visible light transmittance TL0 greater than 88%, and the transparent glass plate with a thickness of 2.1 mm, a visible light transmittance greater than 88% and provided with a reflective element has a visible light transmittance TL1 less than 15%. Preferably, the transparent glass plate with a thickness of 2.1 mm, a visible light transmittance greater than 88% and provided with the reflective element of Example 1-12 has a visible light transmittance TL1 less than or equal to 10%. Exemplarily, TL1 is less than or equal to 5%. Exemplarily, TL1 is less than or equal to 1%. Further exemplarily, TL1 is less than or equal to 0.5%. Still further exemplarily, TL1 is less than or equal to 0.1%. In this way, the interference of the reflected light of the heat insulation layer with the image formed by the reflective element can be weakened or even eliminated, and the use of the shielding layer can be saved to some extent or even partially replaced, which is conducive to reducing the manufacturing cost of the laminated glass.

[0151] Another transparent glass plate with a thickness of 2.1 mm and a visible light transmittance greater than 88% was prepared, and a black ceramic ink was printed on the surface thereof by a screen printing process, and after high temperature sintering, a shielding layer was formed;

[0152] Another transparent PVB with a thickness of 0.76 mm was prepared, and the transparent glass plate with the reflective element of Comparative Example 1-2 and Example 1-12 was respectively laminated with the transparent PVB and the transparent glass plate with the shielding layer according to the automobile glass production process, and subjected to autoclave treatment and the like, and finally the laminated glass with the reflective element of Comparative Example 1-2 and Example 1-12 was obtained.

[0153] The transparent glass plate with a shielding layer as an outer glass plate of a laminated glass, the transparent glass plate with the reflective element of Comparative Examples 1-2 and Example 1-12 as an inner glass plate of the laminated glass, the shielding layer is located on the second surface of the laminated glass and forms a shielding area, the reflective element is disposed on the fourth surface of the laminated glass and is located within the bottom shielding area, the reflective element forms a display area within the bottom shielding area.

[0154] The P light reflection spectrum curve, the P light reflectance RLp, the S light reflection spectrum curve, the S light reflectance RLs, and the S light reflectance minimum value RLsmin of the laminated glass with the reflective element of Comparative Examples 1-2 and Example 1-12 are measured, and the measurement results are listed in Table 2.

[0155] P light reflection spectrum curve: the reflection spectrum of P polarized light with a wavelength of 380 nm-780 nm is measured by a spectrophotometer.

[0156] P light reflectance RLp: according to the standard ISO 9050, the reflectance of P polarized light with a wavelength of 380 nm-780 nm incident at an incident angle of 70° is measured and calculated from the fourth surface side of the display area.

[0157] P light reflection difference ΔP: according to the P light reflection spectrum curve, the P light reflectance maximum value RLpmax and the P light reflectance minimum value RLpmin are measured and calculated in the wavelength range of 450 nm-650 nm, and ΔP=RLpmax-RLpmin.

[0158] S light reflection spectrum curve: the reflection spectrum of S polarized light with a wavelength of 380 nm-780 nm is measured by a spectrophotometer.

[0159] S light reflectance RLs: according to the standard ISO 9050, the reflectance of S polarized light with a wavelength of 380 nm-780 nm incident at an incident angle of 70° is measured and calculated from the fourth surface side of the display area.

[0160] Whether there is an extreme point: according to the S light reflection spectrum curve, whether there is an extreme point in the wavelength range of 450 nm-650 nm is measured and calculated, the extreme point is a point where the first derivative of the curvature in the S light reflection spectrum curve is zero, and has a local maximum or a local minimum of S light reflectance at the extreme point.

[0161] S light reflectance minimum value RLsmin: if there is an extreme point in the wavelength range of 450 nm-650 nm in the S light reflection spectrum curve, and has a local minimum of S light reflectance at the extreme point, the local minimum is recorded as the S light reflectance minimum value RLsmin.

[0162] Table 2: Performance parameters of the laminated glass with the reflective element of Comparative Examples 1-2 and Example 1-12

[0163]

[0164] The P light reflection spectrum curve of the interlayer glass of Comparative Example 1-2 and Example 1-12 in the wavelength range of 400nm-700nm, and the S light reflection spectrum curve in the wavelength range of 400nm-700nm are shown in FIG. 1, wherein the thick line represents the P light reflection spectrum curve, and the thin line represents the S light reflection spectrum curve. Figures 16-29

[0165] As can be seen from Table 2, and Figures 16-29 In the interlayer glass of Comparative Example 1 and Comparative Example 2, RLp is less than 30%, RLs is greater than 20%, RLp / RLs is less than 1.5, and the P light reflection extreme difference ΔP of Comparative Example 1 in the wavelength range of 450nm-650nm is greater than 5%, and the S light reflection spectrum curve of Comparative Example 2 does not have a minimum value, resulting in that only a low-brightness image can be obtained in the projection display in the display area, reducing the driving safety and visual comfort, and if a bright image is to be obtained, the energy consumption of the projection device needs to be greatly increased, which is not conducive to the miniaturization and heat dissipation design of the projection device.

[0166] In the interlayer glass of Example 1-12, RLp≥35% or even ≥40%, RLs≤15% or even ≤10%, RLp / RLs>2 or ≥3 or even ≥4, and the P light reflection extreme difference ΔP in the wavelength range of 450nm-650nm is ≤1% or even ≤0.5%, which has only one minimum value in the wavelength range of 450nm-650nm, and RLsmin is less than 7.5% or even ≤5%, so that the interlayer glass has a high P polarized light reflectivity, a smooth P polarized light reflection spectrum, and a low S polarized light reflectivity, thereby achieving the effects of reducing the energy consumption of the projector, reducing the reflection interference of the center console, and reducing the color deviation or eliminating the color deviation in the reflection imaging, and further improving the display effect.

[0167] The above provides a detailed introduction to the content of the embodiments of the present application, and the principles and embodiments of the present application are described and explained in this paper. The above description is only used to help understand the method and its core idea of the present application; at the same time, for those skilled in the art, according to the idea of the present application, the specific embodiments and application range will be changed; in view of the above, the content of the description should not be understood as a limitation of the present application.​

Claims

1. A laminated glass, characterized in that, The laminated glass has a light-transmitting area and a shielding area; The visible light transmittance of the light-transmitting area is greater than or equal to 70%, and the visible light transmittance of the shielding area is less than or equal to 5%. The shielding area is provided with at least one display area. The display area has a P-light reflectivity RLp for P-polarized light with a wavelength of 380nm-780nm incident at a 70° incident angle, and the RLp is 30% to 60%. The display area has an S-light reflectivity spectrum curve for S-polarized light with a wavelength of 380nm-780nm incident at a 70° incident angle. The S-light reflectivity spectrum curve has only one extreme point in the wavelength range of 450nm-650nm, and has a minimum S-light reflectivity RLsmin at the extreme point.

2. The laminated glass as described in claim 1, characterized in that, The required RLsmin is ≤7.5%.

3. The laminated glass as described in claim 2, characterized in that, The RLsmin ≤ 5%.

4. The laminated glass as described in claim 3, characterized in that, The RLsmin ≤ 4%.

5. The laminated glass as described in claim 4, characterized in that, The RLsmin ≤ 3%.

6. The laminated glass as described in claim 1, characterized in that, The RLp is 35% to 55%.

7. The laminated glass as described in claim 6, characterized in that, The RLp is 40% to 50%.

8. The laminated glass as described in claim 1, characterized in that, The display area has an S-polarized reflectivity RLs for S-polarized light with wavelengths of 380nm-780nm incident at an incident angle of 70°, and the ratio of the P-polarized reflectivity RLp to the S-polarized reflectivity RLs is ≥2.

5.

9. The laminated glass as described in claim 8, characterized in that, The RLp / RLs ≥ 3.

10. The laminated glass as described in claim 9, characterized in that, The RLp / RLs ≥ 4.

11. The laminated glass as claimed in claim 10, characterized in that, The RLp / RLs ≥ 5.

12. The laminated glass as described in claim 8, characterized in that, The RLs are ≤20%.

13. The laminated glass as described in claim 12, characterized in that, The RLs are ≤15%.

14. The laminated glass as claimed in claim 13, characterized in that, The RLs are ≤10%.

15. The laminated glass as described in claim 14, characterized in that, The RLs are ≤6%.

16. The laminated glass as claimed in claim 1, characterized in that, The display area has a maximum P-light reflectance RLpmax and a minimum P-light reflectance RLpmin for P-polarized light with wavelengths of 450nm-650nm incident at an incident angle of 70°, and the difference between the maximum P-light reflectance and the minimum P-light reflectance RLpmax-RLpmin is ≤5%.

17. The laminated glass as claimed in claim 16, characterized in that, The RLpmax-RLpmin ≤ 4%.

18. The laminated glass as claimed in claim 17, characterized in that, The value of RLpmax - RLpmin is ≤ 3%.

19. The laminated glass as claimed in claim 18, characterized in that, The value of RLpmax - RLpmin is ≤ 2%.

20. The laminated glass as claimed in claim 19, characterized in that, The value of RLpmax - RLpmin is ≤ 1%.

21. The laminated glass as claimed in claim 20, characterized in that, The ratio RLpmax - RLpmin is ≤ 0.5%.

22. The laminated glass as claimed in claim 1, characterized in that, The shielding area includes a bottom shielding area located below the light-transmitting area, and the display area is located within the bottom shielding area.

23. The laminated glass as described in claim 22, characterized in that, The ratio of the total area of ​​the display area to the area of ​​the bottom shielding area is greater than or equal to 10%.

24. The laminated glass as claimed in claim 23, characterized in that, The ratio of the total area of ​​the display area to the area of ​​the bottom shielding area is 10% to 110%.

25. The laminated glass as claimed in claim 24, characterized in that, The ratio of the total area of ​​the display area to the area of ​​the bottom shielding area is 15% to 105%.

26. The laminated glass as claimed in claim 25, characterized in that, The ratio of the total area of ​​the display area to the area of ​​the bottom shielding area is 20% to 100%.

27. The laminated glass as claimed in claim 26, characterized in that, The ratio of the total area of ​​the display area to the area of ​​the bottom shielding area is 30% to 95%.

28. The laminated glass as claimed in claim 27, characterized in that, The ratio of the total area of ​​the display area to the area of ​​the bottom shielding area is 40% to 90%.

29. The laminated glass as claimed in claim 1, characterized in that, The laminated glass includes a first glass plate, an adhesive layer, a second glass plate, a shielding layer, and a reflective element. The first glass plate has a first surface and a second surface, the second glass plate has a third surface and a fourth surface, the adhesive layer connects the second surface and the third surface, the shielding layer is disposed within the shielding area, the reflective element is disposed within the shielding area and at least covers the display area, and the shielding layer is located between the first glass plate and the reflective element.

30. The laminated glass as claimed in claim 29, characterized in that, The material of the masking layer is selected from at least one of dark ink, opaque polymer film, and dimming film.

31. The laminated glass as described in claim 29, characterized in that, The shielding area includes a bottom shielding area located below the light-transmitting area. The display area is located within the bottom shielding area. The shielding layer within the bottom shielding area is composed of a first shielding sub-layer and a second shielding sub-layer. The material of the first shielding sub-layer is dark ink, and the material of the second shielding sub-layer is an opaque polymer film or a dimming film.

32. The laminated glass as described in claim 29, characterized in that, The laminated glass further includes a heat insulation layer, which is selected from at least one of single silver nano-coating, double silver nano-coating, triple silver nano-coating, quadruple silver nano-coating, ITO nano-coating, FTO nano-coating, and infrared blocking micron coating. The total solar transmittance of the laminated glass having the heat insulation layer is less than or equal to 55%.

33. The laminated glass as described in claim 29, characterized in that, A transparent glass plate with a thickness of 2.1 mm has a visible light transmittance TL0, and the transparent glass plate with the reflective element has a visible light transmittance TL1, where TL0 ≥ 88% and TL1 ≤ 15%.

34. The laminated glass as described in claim 33, characterized in that, The TL1 and TL0 satisfy the condition: TL1 / TL0≤0.

15.

35. The laminated glass as described in claim 34, characterized in that, The ratio TL1 / TL0 is ≤0.

1.

36. The laminated glass as described in claim 35, characterized in that, The ratio TL1 / TL0 is ≤0.

05.

37. The laminated glass as claimed in claim 36, characterized in that, The ratio TL1 / TL0 is less than or equal to 0.

01.

38. The laminated glass as claimed in claim 37, characterized in that, The ratio TL1 / TL0 is ≤0.

005.

39. The laminated glass as described in claim 38, characterized in that, The ratio TL1 / TL0 is less than or equal to 0.

001.

40. The laminated glass as claimed in claim 29, characterized in that, The reflective element includes at least one stacked structure, each of the stacked structures including an absorption layer and a low refractive index layer stacked sequentially along the arrangement direction from the first glass plate to the second glass plate, wherein the extinction coefficient of the absorption layer at a wavelength of 550 nm is greater than 0.1, and the refractive index of the low refractive index layer at a wavelength of 550 nm is less than 1.

8.

41. The laminated glass as claimed in claim 40, characterized in that, The extinction coefficient of the absorption layer at a wavelength of 550 nm is ≥0.

5.

42. The laminated glass as claimed in claim 41, characterized in that, The extinction coefficient of the absorption layer at a wavelength of 550 nm is ≥1.

43. The laminated glass as described in claim 42, characterized in that, The extinction coefficient of the absorption layer at a wavelength of 550 nm is ≥1.

5.

44. The laminated glass as claimed in claim 43, characterized in that, The extinction coefficient of the absorption layer at a wavelength of 550 nm is ≥2.

45. The laminated glass as claimed in claim 44, characterized in that, The extinction coefficient of the absorption layer at a wavelength of 550 nm is ≥2.

5.

46. ​​The laminated glass as claimed in claim 45, characterized in that, The extinction coefficient of the absorption layer at a wavelength of 550 nm is ≥3.

47. The laminated glass as claimed in claim 46, characterized in that, The extinction coefficient of the absorption layer at a wavelength of 550 nm is ≥3.

5.

48. The laminated glass as claimed in claim 40, characterized in that, The material of the absorber layer is selected from at least one element or alloy of Si, Ni, Cr, Al, Ti, Nb, Mo, Sn, Zn, Zr, and Mg.

49. The laminated glass as claimed in claim 40, characterized in that, The total physical thickness of the absorption layer in the reflective element is 10 nm to 100 nm.

50. The laminated glass as claimed in claim 49, characterized in that, The total physical thickness of the absorption layer in the reflective element is 25 nm to 85 nm.

51. The laminated glass as described in claim 50, characterized in that, The total physical thickness of the absorption layer in the reflective element is 35 nm to 75 nm.

52. The laminated glass as described in claim 40, characterized in that, The physical thickness of the absorption layer furthest from the fourth surface in the reflective element is ≥15 nm.

53. The laminated glass as described in claim 52, characterized in that, The physical thickness of the absorption layer furthest from the fourth surface in the reflective element is ≥20 nm.

54. The laminated glass as described in claim 53, characterized in that, The physical thickness of the absorption layer furthest from the fourth surface in the reflective element is ≥25 nm.

55. The laminated glass as described in claim 40, characterized in that, The reflective element is directly disposed on the fourth surface; Alternatively, the shielding layer is provided on the fourth surface, and the reflective element is directly disposed on the surface of the shielding layer that is away from the fourth surface; Alternatively, an ultrathin substrate is disposed on the fourth surface, the ultrathin substrate having a fifth surface facing the fourth surface and a sixth surface facing away from the fourth surface, the reflective element being directly disposed on the fifth surface or the sixth surface, the thickness of the ultrathin substrate being 0.05 mm to 1.0 mm, and the material of the ultrathin substrate being soda-lime glass, or high-alumina glass, or lithium aluminum glass, or borosilicate glass, or polyethylene terephthalate, or polycarbonate.

56. A projection system, characterized in that, The projection system includes a projection device and a laminated glass as described in any one of claims 1-55. The projection device is used to generate projection light, the projection light containing at least 80% P-polarized light, the projection light being incident on at least one display area within the shielded area at an incident angle of 38° to 85°, and the display area reflecting the projection light to form a display image.

Images