Laminated glass and head-up display system

Abstract

To provide a laminated glass in which the quality of an image projected on a windshield is improved.SOLUTION: The laminated glass includes a first transparent substrate 110, a second transparent substrate 120, and an adhesive film 130. The laminated glass includes a light-transmitting region and a light-shielding region surrounding at least a part of a peripheral edge of the light-transmitting region. The adhesive film is provided between the first transparent substrate and the second transparent substrate, and is used for bonding the first transparent substrate and the second transparent substrate. The light-transmitting region has a visible light transmittance greater than or equal to 70%, the light-shielding region has a visible light transmittance less than or equal to 5%, the light-shielding region includes a first region located below the light-transmitting region, and the first region includes one or more functional display regions for displaying images. With this laminated glass, it is possible to weaken and even eliminate two mutually interfering double images formed by the reflected image on the first transparent substrate and the reflected image on the second transparent substrate being shifted from each other.SELECTED DRAWING: Figure 3

Description

[Technical Field]

[0001] The present application relates to the automotive field, and in particular to laminated glass and head-up display systems. [Background technology]

[0002] As automobiles become more intelligent, head-up display (HUD) systems are increasingly being applied to automobiles. HUD systems display images, such as driving information, on the windshield in real time. However, because windshields are made of laminated glass, the light emitted from the projection light source of the HUD system is reflected as it passes through the two surfaces of the laminated glass that are in contact with the air. The reflected images on the two surfaces are misaligned, forming two mutually interfering double images, resulting in poor quality images projected onto the windshield. Summary of the Invention

[0003] The present application provides laminated glass. The laminated glass includes a first transparent substrate, a second transparent substrate, and an adhesive film. The first transparent substrate has a first surface and a second surface arranged back to back. The second transparent substrate has a third surface and a fourth surface arranged back to back, with the third surface being closer to the second surface than the fourth surface. The laminated glass includes a light-transmitting region and a light-shielding region surrounding at least a portion of the periphery of the light-transmitting region. The adhesive film is arranged between the second surface and the third surface and is used to bond the first transparent substrate and the second transparent substrate. The light-transmitting region has a visible light transmittance of 70% or more, and the light-shielding region has a visible light transmittance of 5% or less. The light-shielding region includes a first region located below the light-transmitting region, and the first region includes one or more first function display regions used to display a first image.

[0004] The light-shielding region further includes a second region located above the light-transmitting region and third regions located on both sides of the light-transmitting region.

[0005] The first functional display area is provided with at least one flexible display, the flexible display being located between the second surface and the third surface, and the flexible display employing at least one of a MiniLED display, a MicroLED display, and an OLED display.

[0006] A projection light beam capable of forming a first image is incident on the first function display area at an angle of 50° to 72°, and the first function display area has a reflectance of 4% or more for the incident projection light beam.

[0007] The first functional display area is a part of the fourth surface, the incident projection light contains 60% to 100% S-polarized light, and the first functional display area has a reflectivity of 8% or more for the incident projection light.

[0008] The laminated glass further includes a medium film in the first functional display area, the medium film being located on the third surface or the fourth surface, the incident projection light containing 60% to 100% P-polarized light, and the first functional display area having a reflectance of 8% or more for the incident projection light, or the incident projection light containing 60% to 100% S-polarized light, and the first functional display area having a reflectance of 8% or more for the incident projection light.

[0009] The laminated glass further includes a metal film on the third surface in the first functional display area, the incident projection light contains 60% to 100% P-polarized light, and the first functional display area has a reflectivity of 6% or more for the incident projection light.

[0010] The laminated glass further includes a laminated PET in the first function display area, the incident projection light contains 60% to 100% P-polarized light, and the first function display area has a reflectivity of 10% or more for the incident projection light.

[0011] The laminated glass further includes a deep color ink layer or a colored polymer film in the light-shielding area, the deep color ink layer being provided on the second surface and / or the third surface, and the colored polymer film being provided between the second surface and the third surface.

[0012] The flexible display or first functional display area is closer to the fourth surface than the deep color ink layer or the pigmented polymer film.

[0013] The fourth surface is provided with a colored region, and the upper boundary of the first region is at least 80 mm higher than the upper boundary of the colored region located in the first region.

[0014] The light-transmitting area includes one or more second functional display areas, which are used to display a second image.

[0015] The projection display distance of the first image is 0.5 m to 5 m, and the projection display distance of the second image is 7.5 m or more.

[0016] The projection light beam that forms the first image is incident on the first function display area at an angle of 50° to 72°, and the first function display area has a reflectance of 4% or more for the projection light beam that forms the first image. The projection light beam that forms the second image is incident on the second function display area at an angle of 50° to 72°, and the second function display area has a reflectance of 8% or more for the projection light beam that forms the second image.

[0017] The laminated glass further includes a medium film, and the medium film is positioned in at least the second function display area.

[0018] The medium film is further located in the first function display area.

[0019] The adhesive film is an equal-thickness film, the projection light beam forming the second image contains 60% to 100% P-polarized light, the medium film is a laminated structure consisting of a high refractive index layer and a low refractive index layer, or has at least one metal layer, or is laminated PET, and the second functional display area has a reflectivity of 10% or more for the projection light beam forming the second image that is incident at an angle of 50° to 72°.

[0020] The adhesive film is an equal-thickness film or a wedge-shaped film, a medium film is provided on the fourth surface, the medium film is an anti-reflection film, the second functional display area is part of the first surface, the projection light beam forming the second image contains 60% to 100% S-polarized light, the anti-reflection film has a reflectance of 6% or less for the projection light beam forming the second image, and the second functional display area has a reflectance of 8% or more for the projection light beam forming the second image that is incident at an angle of 50° to 72°.

[0021] The adhesive film is a wedge-shaped film, the projection light beam forming the second image contains 60% to 100% S-polarized light, the medium film is a laminated structure located on the third surface or the fourth surface, the laminated structure consists of a high refractive index layer and a low refractive index layer, and the second functional display area has a reflectivity of 28% or more for the projection light beam forming the second image that is incident at an angle of 50° to 72°.

[0022] The adhesive film is a wedge-shaped film, the second functional display area is part of the fourth surface, the projection light beam forming the second image contains 60% to 100% S-polarized light, and the second functional display area has a reflectivity of 8% or more for the projection light beam forming the second image that is incident at an angle of 50° to 72°.

[0023] The projection light beam forming the first image contains 60% to 100% S-polarized light or 60% to 100% P-polarized light.

[0024] The light-transmitting region further includes a main viewing region, the second functional display region being disposed within the main viewing region, the lower boundary of the main viewing region being at least 25 mm higher than the upper boundary of the first region.

[0025] The present application further provides a head-up display (HUD) system, comprising: a first projection light source and the laminated glass, the first projection light source being used to project a projection light beam that forms a first image onto a first functional display area.

[0026] The light-transmitting area includes one or more second functional display areas, and the HUD system further includes a second projection light source, which is used to project projection light rays that form a second image onto the second functional display areas.

[0027] The projection light beam forming the first image contains 60% to 100% P-polarized light, and the projection light beam forming the second image contains 60% to 100% S-polarized light.

[0028] The projection light beam forming the first image contains 60% to 100% S-polarized light, and the projection light beam forming the second image contains 60% to 100% P-polarized light.

[0029] The projection light beam forming the first image contains 60% to 100% P-polarized light, and the projection light beam forming the second image contains 60% to 100% P-polarized light.

[0030] The projection light beam forming the first image contains 60% to 100% S-polarized light, and the projection light beam forming the second image contains 60% to 100% S-polarized light.

[0031] The laminated glass provided in the examples of the present application has a light-blocking region, which reduces or even blocks reflected light A that enters the laminated glass from the fourth surface and is reflected by the first transparent substrate, thereby weakening or even blocking double images created by reflected light B that enters the laminated glass from the fourth surface and is reflected by the second transparent substrate, and reflected light A. In addition, the laminated glass provided in the examples of the present application reduces or even blocks incident light C that enters the laminated glass from the first surface, thereby weakening or even blocking double images created by reflected light B that enters the laminated glass from the fourth surface and is reflected by the second transparent substrate, and incident light C. In this way, the laminated glass provided in the examples of the present application can achieve high image quality for images projected thereon. [Brief explanation of the drawings]

[0032] [Figure 1] FIG. 1 is a structural schematic diagram showing the division of regions of laminated glass provided in an example of the present application. [Figure 2] 2 is a cross-sectional view of one embodiment of the present application taken along line II in FIG. 1. [Figure 3] 2 is a cross-sectional view of a layered structure taken along line II in FIG. 1 according to one embodiment of the present application. [Figure 4] 2 is a cross-sectional view of a layered structure taken along line II in FIG. 1 according to another embodiment of the present application. [Figure 5] 2 is a cross-sectional view of a layered structure taken along line II in FIG. 1 according to another embodiment of the present application. [Figure 6] 2 is a cross-sectional view of a layered structure taken along line II in FIG. 1 according to another embodiment of the present application. [Figure 7] 2 is a cross-sectional view of a layered structure taken along line II in FIG. 1 according to another embodiment of the present application. [Figure 8] FIG. 2 is a structural schematic diagram showing the division of regions in a laminated glass provided in another embodiment of the present application. [Figure 9] FIG. 2 is a structural schematic diagram showing the division of regions in a laminated glass provided in another embodiment of the present application. [Figure 10] FIG. 2 is a structural schematic diagram showing the division of regions in a laminated glass provided in another embodiment of the present application. [Figure 11] 11 is a cross-sectional view of a layered structure taken along line II in FIG. 10 according to another embodiment of the present application. [Figure 12] 11 is a cross-sectional view of a layered structure taken along line II in FIG. 10 according to another embodiment of the present application. [Figure 13] 11 is a cross-sectional view of a layered structure taken along line II in FIG. 10 according to another embodiment of the present application. [Figure 14] 11 is a cross-sectional view of a layered structure taken along line II in FIG. 10 according to another embodiment of the present application. [Figure 15] 11 is a cross-sectional view of a layered structure taken along line II in FIG. 10 according to another embodiment of the present application. [Figure 16] 11 is a cross-sectional view of a layered structure taken along line II in FIG. 10 according to another embodiment of the present application. [Figure 17] 11 is a cross-sectional view of a layered structure taken along line II in FIG. 10 according to another embodiment of the present application. [Figure 18] 11 is a cross-sectional view of a layered structure taken along line II in FIG. 10 according to another embodiment of the present application. [Figure 19] 11 is a cross-sectional view of a layered structure taken along line II in FIG. 10 according to another embodiment of the present application. [Figure 20] 11 is a cross-sectional view of a layered structure taken along line II in FIG. 10 according to another embodiment of the present application. [Figure 21] 11 is a cross-sectional view of a layered structure taken along line II in FIG. 10 according to another embodiment of the present application. [Figure 22] 11 is a cross-sectional view of a layered structure taken along line II in FIG. 10 according to another embodiment of the present application. [Figure 23] FIG. 2 is a structural schematic diagram showing the division of regions in a laminated glass provided in another embodiment of the present application. [Figure 24] FIG. 24 is a cross-sectional view of a layered structure taken along line II in FIG. 23 according to another embodiment of the present application. [Figure 25]FIG. 2 is a structural schematic diagram showing the division of regions in a laminated glass provided in another embodiment of the present application. [Figure 26] FIG. 2 is a structural schematic diagram showing the division of regions in a laminated glass provided in another embodiment of the present application. [Figure 27] 1 is a schematic diagram of a vehicle provided in the present application. DETAILED DESCRIPTION OF THE INVENTION

[0033] Hereinafter, the technical solutions of the embodiments of the present application will be described clearly and completely with reference to the drawings of the embodiments of the present application. Obviously, the described embodiments are only some of the embodiments of the present application, but not all of the embodiments. Based on the embodiments of the present application, all other embodiments that can be obtained by those skilled in the art without creative efforts belong to the protection scope of the present application.

[0034] The term "example" or "embodiment" referred to herein means that a particular feature, structure, or characteristic described in connection with the example or embodiment can be included in at least one example of the present application. Appearances of such words anywhere in the specification do not necessarily refer to the same example, nor do they refer to independent or potential examples that are mutually exclusive with other examples. Those skilled in the art can explicitly or implicitly understand that the examples described herein can be combined with other examples.

[0035] 1 to 3, FIG. 1 is a structural schematic diagram showing the division of regions in a laminated glass provided in an embodiment of the present application, FIG. 2 is a cross-sectional view of one embodiment of the present application taken along line II in FIG. 1, and FIG. 3 is a cross-sectional layer division structure diagram of one embodiment of the present application taken along line II in FIG. 1. The present application provides a laminated glass 10, which includes a first transparent substrate 110, a second transparent substrate 120, and an adhesive film 130. The first transparent substrate 110 has a first surface 111 and a second surface 112 arranged back to back. The second transparent substrate 120 has a third surface 121 and a fourth surface 122 arranged back to back, with the third surface 121 being closer to the second surface 112 than the fourth surface 122. The laminated glass 10 has a light-transmitting region R20 and a light-shielding region R10 that surrounds at least a portion of the periphery of the light-transmitting region R20. An adhesive film 130 is provided between the second surface 112 and the third surface 121 and is used to bond the first transparent substrate 110 and the second transparent substrate 120. The light-transmitting region R20 has a visible light transmittance of 70% or more, and the light-shielding region R10 has a visible light transmittance of 5% or less. The light-shielding region R10 includes a first region R110 located below the light-transmitting region R20, and the first region R110 includes one or more first function display regions R111 that are used to display a first image P1.

[0036] In one embodiment, the first transparent substrate 110 and the second transparent substrate 120 are tightly connected by an adhesive film 130. To conveniently and clearly illustrate the layer structure of the laminated glass 10, the present application rotates the cross-sectional view taken along line II in FIG. 1 by 90° counterclockwise, separating all the structures of the laminated glass 10, and magnifying the thickness of all the structures. For ease of explanation, the modified view is referred to as a cross-sectional layer structure view taken along line II in FIG. 1. For example, refer to FIG. 3, which is a cross-sectional layer structure view taken along line II in FIG. 1 of one embodiment of the present application. FIG. 3 was obtained by rotating FIG. 2 by 90° counterclockwise, separating all the structures of the laminated glass 10, and magnifying the thickness of all the structures. It should be understood that the cross-sectional layer structure views described later are also shown with reference to the processing of FIGS. 2 and 3, and the explanations will not be repeated.

[0037] The first transparent substrate 110 and the second transparent substrate 120 may be curved panels having light-transmitting properties, and may be made of, for example, inorganic glass or organic glass. Examples of inorganic glass include soda-lime-silica glass, aluminosilicate glass, lithium aluminum silicate glass, and borosilicate glass. Examples of organic glass include polycarbonate (PC) glass and polymethyl methacrylate (PMMA) glass. The first transparent substrate 110 and the second transparent substrate 120 may be transparent or may be colored and have light-transmitting properties. The materials of the first transparent substrate 110 and the second transparent substrate 120 may be the same or different.

[0038] The light-transmitting region R20 is a region of the laminated glass 10 that can transmit visible light, and the light-transmitting region R20 preferably has a visible light transmittance of 70% or more to ensure driving safety after the laminated glass 10 is installed in a vehicle. The light-shielding region R10 is a region of the laminated glass 10 that has a relatively low visible light transmittance, and the light-shielding region R10 is distributed in the peripheral region of the laminated glass 10.

[0039] The adhesive film 130 is provided between the first transparent substrate 110 and the second transparent substrate 120, and serves to bond the first transparent substrate 110 and the second transparent substrate 120. The adhesive film 130 has two types of structures, which will be described in detail later.

[0040] A light-shielding layer 140 is provided in the light-shielding region R10. The light-shielding layer 140 may be a deep color ink layer or a colored polymer film. The deep color ink layer is provided on the second surface 112 and / or the third surface 121, and the colored polymer film is provided between the second surface 112 and the third surface 121. The light-shielding layer 140 has a low projected light transmittance. The light-shielding layer 140 is placed on the first transparent substrate 110 or the second transparent substrate 120 and is located in the light-shielding region R10. The light-shielding layer 140 can be formed in the light-shielding region R10 using, for example, printing ink. Optionally, the projected light transmittance of the light-shielding layer 140 is 5% or less, preferably 1% or less. Alternatively, the light-shielding layer 140 may be a resin film with a deep color and low transmittance, or may be a resin film with a light color and low transmittance, and the resin film may be, for example, a colored polyvinyl butyral (PVB), polyethylene terephthalate (PET), etc.

[0041] In one embodiment, continuing to refer to Fig. 3, Fig. 3 is a cross-sectional view of the layered structure of one embodiment of the present application taken along line II in Fig. 1. A light-shielding layer 140 is provided on the second surface 112. In another embodiment, referring to Fig. 4, Fig. 4 is a cross-sectional view of the layered structure of another embodiment of the present application taken along line II in Fig. 1. A light-shielding layer 140 is provided on the third surface 121.

[0042] Specifically, when the laminated glass 10 does not include the light-shielding layer 140, when a vehicle interior projection device projects a first image P1 onto the laminated glass 10, the projected light enters the laminated glass 10 from the fourth surface 122 and is reflected by the first surface 111 of the first transparent substrate 110 to form reflected light A. Correspondingly, the projected light incident on the laminated glass 10 is reflected by the fourth surface 122 of the second transparent substrate 120 and enters the human eye. For convenience of explanation, the projected light reflected by the fourth surface 122 is referred to as reflected light B. Reflected light B forms a main image visible to the human eye, and reflected light A forms a secondary image visible to the human eye. There is a certain offset between the secondary image and the main image, i.e., a double image occurs. The laminated glass 10 according to the embodiment of the present application includes the light-shielding layer 140, which can reduce or even block reflected light A, thereby weakening or even blocking the double image caused by reflected light A and reflected light B. Furthermore, since the light-shielding layer 140 has a low transmittance for projected light, the light-shielding layer 140 can be used as a display background for the main image, thereby improving the visibility of the main image and its contrast with the brightness of the environment, and significantly improving the display quality of the main image.

[0043] An application scenario of the laminated glass 10 will now be described. When the laminated glass 10 is applied to a vehicle 1, the laminated glass 10 is attached to the vehicle 1 as a windshield at a certain inclination angle. The first transparent substrate 110 of the laminated glass 10 is the substrate exposed to the exterior of the vehicle, and the second transparent substrate 120 is the substrate exposed to the interior of the laminated glass 10. To explain the beneficial effects of the laminated glass 10 with the light-shielding layer 140, we will first describe a case where the laminated glass 10 does not have the light-shielding layer 140. A projection device inside the vehicle projects a first image P1 onto the laminated glass 10, forming the first image P1 on the second transparent substrate 120. Light from objects outside the vehicle also passes through the laminated glass 10 and enters the vehicle interior. When a projection device inside the vehicle projects a first image P1 onto the laminated glass 10, the projected light enters the laminated glass 10 from the fourth surface 122, is reflected by the fourth surface 122 to form reflected light B, and is reflected by the first surface 111 to form reflected light A. Reflected light B and reflected light A do not overlap, resulting in a reflected double image. Light from an object outside the vehicle enters the laminated glass 10 from the first surface 111, passes through the laminated glass 10, and enters the vehicle interior to form incident light C. Incident light C forms a transmitted double image due to the oblique installation of the laminated glass 10 and the parallel thickness of the laminated glass 10. The laminated glass 10 in this embodiment is provided with a light-shielding layer 140, which reduces or even blocks reflected light A and incident light C, thereby weakening or even blocking the reflected double image and transmitted double image.

[0044] In summary, the laminated glass 10 provided in the examples of the present application includes a light-shielding layer 140 located in the light-shielding region R10, which can weaken or even block reflected and transmitted double images. Thus, the laminated glass 10 provided in the examples of the present application can achieve high image quality for images projected onto it.

[0045] 1 , the light-shielding region R10 includes a first region R110, a second region R120, and a third region R130. The first region R110 is located below the light-transmitting region R20 and includes one or more first function display regions R111 used to display a first image P1. The second region R120 is located above the light-transmitting region R20. The third region R130 is located on both sides of the light-transmitting region R20. The second region R120 and the third region R130 are used to shield electronic devices and wiring.

[0046] The light-shielding region R10 is provided so as to surround the light-transmitting region R20, that is, the first region R110, the second region R120, and the third region R130 are located in the light-shielding region R10 and surround the light-transmitting region R20.

[0047] In this embodiment, the light-shielding region R10 is divided into three regions, and the first region R110 is provided with one or more first function display regions R111. When the first region R110 is provided with multiple first function display regions R111, the multiple first function display regions R111 may be provided separately, integrated, or some may be provided separately and some may be integrated. Each first function display region R111 is used to correspondingly display one first image P1. Optionally, to achieve a better display effect of the first image P1, the total area of ​​the first function display regions R111 occupies more than 10% of the first region R110. The second region R120 and the third region R130, on the other hand, are used to shield electronic devices or wiring that will be attached in subsequent applications.

[0048] Referring again to FIG. 4, in one embodiment, the first functional display region R111 is part of the fourth surface 122, the incident projection light contains 60% to 100% S-polarized light, and the first functional display region R111 has a reflectivity of 8% or more for the incident projection light.

[0049] In this embodiment, preferably, the projection light contains 100% S-polarized light, which can further increase the reflectivity of the first functional display area R111 to the incident projection light, thereby making the first image P1 clearer.

[0050] Referring to FIGS. 5, 6, and 7, FIG. 5 is a cross-sectional view of a layered structure of another embodiment of the present application taken along line II in FIG. 1. FIG. 6 is a cross-sectional view of a layered structure of another embodiment of the present application taken along line II in FIG. 1. FIG. 7 is a cross-sectional view of a layered structure of another embodiment of the present application taken along line II in FIG. 1. The adhesive film 130 is a constant-thickness film. The laminated glass 10 further includes a medium film 150. The medium film 150 is disposed on the third surface 121 (see FIG. 6), on the fourth surface 122 (see FIG. 5), or wrapped in the adhesive film 130 (see FIG. 7). The medium film 150 is located in the first region R110. Orthogonal projection of the medium film 150 onto the second transparent substrate 120 covers the entire first functional display region R111. The medium film 150 has the ability to reflect S-polarized light.

[0051] In this embodiment, the medium film 150 has the ability to reflect S-polarized light. The medium film 150 is coupled to the second transparent substrate 120 by being attached to the fourth surface 122 (see FIG. 5), the third surface 121 (see FIG. 6), or the adhesive film 130 (see FIG. 7), thereby enabling the second transparent substrate 120 to reflect S-polarized light. For example, if the proportion of S-polarized light in the projected light on the second transparent substrate 120 side is relatively high, e.g., 60% to 100%, the reflectivity of the second transparent substrate 120 to the projected light on the second transparent substrate 120 side in the light-shielding region R10 is relatively high. For example, if the projected light is incident at an incident angle of 60°, the reflectivity can reach 22%. Preferably, the proportion of S-polarized light in the projected light is 100%, thereby further weakening or even blocking the reflected light from the first transparent substrate 110. The orthogonal projection of the medium film 150 onto the second transparent substrate 120 covers all of the first function display area R111, thereby further improving the brightness and clarity of the reflected light produced when the incident light on the second transparent substrate 120 side is reflected by the second transparent substrate 120.

[0052] Referring to FIGS. 5, 6, and 7, FIG. 5 is a cross-sectional view of a layered structure of another embodiment of the present application taken along line II in FIG. 1. FIG. 6 is a cross-sectional view of a layered structure of another embodiment of the present application taken along line II in FIG. 1. FIG. 7 is a cross-sectional view of a layered structure of another embodiment of the present application taken along line II in FIG. 1. The adhesive film 130 is a constant-thickness film. The laminated glass 10 further includes a medium film 150. The medium film 150 is disposed on the third surface 121 (see FIG. 6), on the fourth surface 122 (see FIG. 5), or wrapped in the adhesive film 130 (see FIG. 7). The medium film 150 is located in the first region R110. Orthogonal projection of the medium film 150 onto the second transparent substrate 120 covers the entire first functional display region R111. The medium film 150 has the ability to reflect P-polarized light.

[0053] In this embodiment, the medium film 150 has the ability to reflect P-polarized light, and the medium film 150 may be, but is not limited to, a high refractive index layer, a low refractive index layer, a metal film (including silver layers 1 to 5), or laminated polyethylene terephthalate (PET), etc. The medium film 150 is bonded to the second transparent substrate 120 by being attached to the fourth surface 122 (see FIG. 5), or the third surface 121 (see FIG. 6), or by being wrapped in an adhesive film 130 (see FIG. 7), thereby allowing the second transparent substrate 120 to reflect P-polarized light. For example, when the proportion of P-polarized light in the projected light on the second transparent substrate 120 side is relatively large, e.g., 60% to 100%, the second transparent substrate 120 reflects the P-polarized light in the light-blocking region R10. For example, when the projected light is incident at an incident angle of 65°, the reflectance can reach 20%. Preferably, the proportion of P-polarized light in the projected light is 100%, which further weakens or even blocks the reflected light from the first transparent substrate 110 and further improves the brightness and clarity of the reflected light formed when the incident light on the second transparent substrate 120 side is reflected by the second transparent substrate 120. In addition, a driver wearing sunglasses can observe the first image P1 in the first function display region R111.

[0054] 8 and 9, FIG. 8 is a structural schematic diagram showing the division of regions of a laminated glass provided in another embodiment of the present application, and FIG. 9 is a structural schematic diagram showing the division of regions of a laminated glass provided in another embodiment of the present application. The laminated glass 10 further includes one or more flexible displays 160. The flexible displays 160 are provided in the first region R110, and each flexible display 160 is provided corresponding to one first function display region R111, and the flexible displays 160 are used to display a first image P1. Alternatively, the laminated glass 10 further includes one or more first projection light sources 170. The first projection light sources 170 are used to project the first image P1 into the first function display region R111, and each first projection light source 170 is provided corresponding to one first function display region R111.

[0055] 8 , in this embodiment, the first functional display region R111 is provided with a flexible display 160, and each flexible display 160 is provided corresponding to one first functional display region R111. Each flexible display 160 is provided between the light-shielding layer 140 and the third surface 121 or on the fourth surface 122. The flexible display 160 may be, but is not limited to, a Mini LED display, a Micro LED display, or an OLED display. The flexible display 160 directly generates an image, and the first image P1 emitted by the flexible display 160 does not directly pass through the second transparent substrate 120 or does not need to pass through the second transparent substrate 120, and is not affected by the reflected light of the first transparent substrate 110. This further avoids the formation of a double image due to the reflected light of the first transparent substrate 110 and the reflected light of the second transparent substrate 120.

[0056] 9, in another embodiment, each first projection light source 170 is provided corresponding to one first functional display region R111, and the first projection light source 170 is provided on the second transparent substrate 120 side. Optionally, the proportion of S-polarized light in the light beam of the first projection light source 170 is 60% to 100%, which, together with the medium film 150 capable of reflecting S-polarized light, can improve the clarity of the first image P1. Preferably, the proportion of S-polarized light in the light beam of the first projection light source 170 is 100%, which can further improve the clarity of the first image P1.

[0057] In yet another embodiment, when the laminated glass 10 has multiple first functional display areas R111, a flexible display 160 is used in combination with a first projection light source 170, with the flexible display 160 provided corresponding to some of the first functional display areas R111 and the first projection light source 170 provided corresponding to the remaining first functional display areas R111. This embodiment not only reduces the double images formed by the reflected light from the first transparent substrate 110 and the reflected light from the second transparent substrate 120, but also increases the display diversity of the first functional display areas R111, allowing the installation of the laminated glass 10 to be optimized according to actual applications.

[0058] Note that the flexible display 160 or the first functional display region R111 is closer to the fourth surface 122 than the light-shielding layer 140, so that the light-shielding layer 140 can serve as a display background for the first image P1. The light-shielding layer 140 may be, but is not limited to, a deep color ink layer or a colored polymer film. At the same time, the projection display distance of the first image P1 is 0.5 m to 5 m. In some embodiments, the projection display distance of the first image P1 refers to the distance between the first projection light source 170 and the first image P1.

[0059] 10, which is a structural schematic diagram showing the division of regions in a laminated glass provided in another embodiment of the present application. The light-transmitting region R20 further includes a main viewing region R210, and the lower boundary of the main viewing region R210 is at least 25 mm higher than the upper boundary of the first region R110.

[0060] In this embodiment, the lower boundary of the main viewing region R210 is at least 25 mm higher than the upper boundary of the first region R110, thereby avoiding optically sensitive areas and preventing optical distortion from forming between the first region R110 and the main viewing region R210, and thus preventing optical distortion from interfering with the imaging in the first region R110 and the main viewing region R210.

[0061] 10 , the main viewing area R210 further includes one or more second functional display areas R211, which are used to display a second image P2, and the projection display distance of the second image P2 is 7.5 m or more. In some embodiments, the projection display distance of the second image P2 refers to the distance between the second projection light source 190 and the second image P2.

[0062] In this embodiment, the laminated glass 10 is further provided with a second function display area R211. The area of ​​the second function display area R211 is larger than the area of ​​the first function display area R111, allowing the laminated glass 10 to display a larger second image P2, thereby enriching the image display of the laminated glass 10. The projection light beams forming the first image P1 are incident on the first function display area R111 at an angle of 50° to 72°, and the first function display area R111 has a reflectance of 4% or more for the projection light beams forming the first image P1. The projection light beams forming the second image P2 are incident on the second function display area R211 at an angle of 50° to 72°, and the second function display area R211 has a reflectance of 8% or more for the projection light beams forming the second image P2.

[0063] 11 and 12, Fig. 11 is a cross-sectional view of a layered structure of another embodiment of the present application taken along line II in Fig. 10, and Fig. 12 is a cross-sectional view of a layered structure of another embodiment of the present application taken along line II in Fig. 10. The thickness of the adhesive film 130 gradually decreases in the direction from the second region R120 to the first region R110, and the orthogonal projection of the adhesive film 130 onto the second transparent substrate 120 covers the entire second function display region R211.

[0064] In this embodiment, the thickness of the adhesive film 130 gradually decreases from the second region R120 toward the first region R110. In other words, the adhesive film 130 is a wedge-shaped film. Optionally, the wedge angle formed by the gradually changing thickness of the adhesive film 130 is 0.15 mrad to 0.55 mrad, and orthogonal projection of the gradually changing thickness portion of the adhesive film 130 onto the second transparent substrate 120 covers at least the entire second function display region R211. The second function display region R211 is part of the fourth surface 122, and the projection light beam forming the second image P2 contains 60% to 100% S-polarized light. The second function display region R211 has a reflectivity of 8% or more for the projection light beam forming the second image P2 incident at an angle of 50° to 72°. Preferably, the projection light beam forming the second image P2 contains 100% S-polarized light. The adhesive film 130, whose thickness varies gradually, has a wedge angle that corrects the double image formed in the second function display region R211 by the reflected light from the first transparent substrate 110 and the reflected light from the second transparent substrate 120. At the same time, if the laminated glass 10 has multiple second function display regions R211, the wedge angles of the adhesive film 130 in the different second function display regions R211 may or may not be equal. Because each second function display region R211 has a different size, shape, and position, and the light source incident angle is also different, different wedge angles are required to correct the double image formed in the second function display region R211 by the reflected light from the first transparent substrate 110 and the reflected light from the second transparent substrate 120. Of course, if the arrangement conditions of each second function display region R211 are the same, the same wedge angle can be used.

[0065] 11, in one embodiment, the light-shielding layer 140 is disposed on the third surface 121, and the adhesive film 130 is disposed between the light-shielding layer 140 and the second surface 112. The orthogonal projection of the gradually varying thickness portion of the adhesive film 130 onto the second transparent substrate 120 covers the entire second function display region R211. The adhesive film 130 can correct the double image formed by the reflected light from the first transparent substrate 110 and the reflected light from the second transparent substrate 120 in the second function display region R211, thereby improving the clarity of the second image P2. In another embodiment, as shown in FIG. 12, the light-shielding layer 140 is disposed on the second surface 112, and the adhesive film 130 is disposed between the light-shielding layer 140 and the third surface 121. The orthogonal projection of the portion of the adhesive film 130 where the thickness gradually changes onto the second transparent substrate 120 covers all of the second function display regions R211. The adhesive film 130 can correct double images formed in the second function display regions R211 by the reflected light from the first transparent substrate 110 and the reflected light from the second transparent substrate 120, thereby improving the clarity of the second image P2. Alternatively, the orthogonal projection of the portion of the adhesive film 130 where the thickness gradually changes onto the second transparent substrate 120 covers all of the first function display regions R111 and all of the second function display regions R211. The adhesive film 130 can correct double images formed in the first function display regions R111 and the second function display regions R211 by the reflected light from the first transparent substrate 110 and the reflected light from the second transparent substrate 120, thereby improving the clarity of not only the second image P2 but also the clarity of the first image P1. Furthermore, the manufacturing efficiency of the first transparent substrate 110, the second transparent substrate 120, and the adhesive film 130 is improved.

[0066] 13 to 16, Fig. 13 is a cross-sectional view of a layered structure of another embodiment of the present application taken along line II of Fig. 10, Fig. 14 is a cross-sectional view of a layered structure of another embodiment of the present application taken along line II of Fig. 10, Fig. 15 is a cross-sectional view of a layered structure of another embodiment of the present application taken along line II of Fig. 10, and Fig. 16 is a cross-sectional view of a layered structure of another embodiment of the present application taken along line II of Fig. 10. The laminated glass 10 further includes a medium film 150. The medium film 150 is provided on the third surface 121 or the fourth surface 122, and has the ability to reflect P-polarized light or the ability to reflect S-polarized light. Alternatively, the medium film 150 is provided on the fourth surface 122, and has the ability to reduce reflection of S-polarized light and a reflectivity of less than 6%. Alternatively, the medium film 150 may be a laminated structure consisting of a high refractive index layer and a low refractive index layer, provided on the third surface 121 or the fourth surface 122, and reflects P-polarized or S-polarized light. Alternatively, the medium film 150 may include at least one metal layer (including silver layers 1 to 5), provided on the second surface 112 or the third surface 121, and reflect P-polarized light. Alternatively, the medium film 150 may be a laminated PET film, sandwiched between the second surface 112 and the third surface 121, and reflect P-polarized light. Orthogonal projection of the medium film 150 onto the second transparent substrate 120 covers at least the entire second function display region R211. In one embodiment, orthogonal projection of the medium film 150 onto the second transparent substrate 120 covers the entire second function display region R211. In another embodiment, the orthogonal projection of the medium film 150 onto the second transparent substrate 120 covers all of the second functional display areas R211 and all of the first functional display areas R111.

[0067] Referring to FIG. 13, based on the embodiment shown in FIG. 11, a medium film 150 is provided on the fourth surface 122. In one embodiment, when the light source on the fourth surface 122 side contains 60% to 100% P-polarized light, the medium film 150 has the ability to reflect P-polarized light, and the P-polarized light reflectance of the medium film 150 is 10% or more. At an incident angle of 50° to 72°, the P-polarized light reflectance of the first surface 111 of the first transparent substrate 110 is very low. For example, at an incident angle of 57°, the P-polarized light reflectance of the first surface 111 is only less than 1%. This weakens the reflected light from the first surface 111, i.e., further weakens the double image of the light reflected by the first surface 111 and the fourth surface 122 from the light source on the fourth surface 122 side. In another embodiment, when the light source on the fourth surface 122 side contains 60% to 100% S-polarized light, the medium film 150 has the ability to reflect S-polarized light, and the S-polarized light reflectance of the medium film 150 is 28% or more, thereby weakening the light reflected by the first surface 111. In addition, by using the adhesive film 130 with an uneven thickness, the reflection image formed by the light source on the fourth surface 122 side on the first surface 111 and the reflection image formed by the fourth surface 122 are superimposed and strengthened, that is, the double image of the light reflected by the light source on the fourth surface 122 side on the first surface 111 and the light reflected by the fourth surface 122 is weakened. In yet another embodiment, when the light source on the fourth surface 122 side contains 60% to 100% S-polarized light, the orthogonal projection of the medium film 150 onto the second transparent substrate 120 does not cover the entire first function display region R111, and the medium film 150 has a function of reducing the reflection of S-polarized light and has a reflectance of 6% or less. This weakens the reflected light formed on the fourth surface 122 by the light source on the fourth surface 122 side, and therefore weakens the double image formed in the second function display region R211 by the reflected light formed on the first surface 111 by the light source on the fourth surface 122 side and the reflected light formed on the fourth surface 122.

[0068] Referring to FIG. 14, based on the embodiment shown in FIG. 12, a medium film 150 is provided on the fourth surface 122. In one embodiment, when the light source on the fourth surface 122 side contains 60% to 100% P-polarized light, the medium film 150 has the ability to reflect P-polarized light, and the P-polarized light reflectance of the medium film 150 is 10% or more. At an incident angle of 50° to 72°, the P-polarized light reflectance of the first surface 111 of the first transparent substrate 110 is very low. For example, at an incident angle of 57°, the P-polarized light reflectance of the first surface 111 is only less than 1%. This reduces the reflected light from the first surface 111, i.e., reduces the double image of the light source on the fourth surface 122 side, which is caused by the light reflected by the first surface 111 and the light reflected by the fourth surface 122. In another embodiment, when the light source on the fourth surface 122 side contains 60% to 100% S-polarized light, the medium film 150 has the ability to reflect S-polarized light, and the S-polarized light reflectance of the medium film 150 is 28% or more, thereby weakening the light reflected by the first surface 111. In addition, by using the adhesive film 130 with an uneven thickness, the reflection image formed by the light source on the fourth surface 122 side on the first surface 111 and the reflection image formed by the fourth surface 122 are superimposed and strengthened, that is, the double image of the light reflected by the light source on the fourth surface 122 side on the first surface 111 and the light reflected by the fourth surface 122 is weakened. In yet another embodiment, when the light source on the fourth surface 122 side contains 60% to 100% S-polarized light, the orthogonal projection of the medium film 150 onto the second transparent substrate 120 does not cover the entire first function display region R111, and the medium film 150 has a function of reducing the reflection of S-polarized light and has a reflectance of 6% or less. This weakens the reflected light formed on the fourth surface 122 by the light source on the fourth surface 122 side, and therefore weakens the double image formed in the second function display region R211 by the reflected light formed on the first surface 111 by the light source on the fourth surface 122 side and the reflected light formed on the fourth surface 122.

[0069] 15, based on the embodiment shown in FIG. 11, a medium film 150 is provided between the light-shielding layer 140 and the adhesive film 130, and the orthogonal projection of the medium film 150 onto the second transparent substrate 120 covers the entire second function display region R211. In one embodiment, when the light source on the fourth surface 122 side contains 60% to 100% P-polarized light, the medium film 150 has the ability to reflect P-polarized light, and the P-polarized light reflectance of the medium film 150 is 10% or more. At an incident angle of 50° to 72°, the P-polarized light reflectance of the first surface 111 of the first transparent substrate 110 and the fourth surface 122 of the second transparent substrate 120 is very low, for example, only less than 1% at an incident angle of 57°. This weakens the reflected light from the first surface 111 and the reflected light from the fourth surface 122, i.e., weakens the double image of the reflected light formed by the light source on the fourth surface 122 side at the first surface 111 and the reflected light formed by the fourth surface 122.

[0070] 16, based on the embodiment shown in FIG. 12, a medium film 150 is provided between the adhesive film 130 and the third surface 121. In one embodiment, when the light source on the fourth surface 122 side contains 60% to 100% P-polarized light, the medium film 150 has the ability to reflect P-polarized light, and the P-polarized light reflectance of the medium film 150 is 10% or more. This weakens the reflected light from the first surface 111, i.e., weakens the double image formed by the reflected light from the first surface 111 and the reflected light from the fourth surface 122 side by the light source on the fourth surface 122 side.

[0071] 17 to 22, Fig. 17 is a cross-sectional view of the layer division structure of another embodiment of the present application taken along line II of Fig. 10, Fig. 18 is a cross-sectional view of the layer division structure of another embodiment of the present application taken along line II of Fig. 10, Fig. 19 is a cross-sectional view of the layer division structure of another embodiment of the present application taken along line II of Fig. 10, Fig. 20 is a cross-sectional view of the layer division structure of another embodiment of the present application taken along line II of Fig. 10, Fig. 21 is a cross-sectional view of the layer division structure of another embodiment of the present application taken along line II of Fig. 10, and Fig. 22 is a cross-sectional view of the layer division structure of another embodiment of the present application taken along line II of Fig. 10. The adhesive film 130 is a constant thickness film, and the laminated glass 10 further includes a medium film 150. The medium film 150 is provided on the third surface 121, or on the fourth surface 122, or is wrapped in the adhesive film 130. The medium film 150 has the ability to reflect P-polarized light, or the medium film 150 has the ability to reflect polarized light and has a reflectivity of less than 6%. Orthogonal projection of the medium film 150 onto the second transparent substrate 120 covers at least the entire second function display region R211.

[0072] Referring to FIG. 17 , based on the embodiment shown in FIG. 4 , a medium film 150 is provided on the fourth surface 122. In one embodiment, when the light source on the fourth surface 122 side contains 60% to 100% P-polarized light, the medium film 150 has the ability to reflect P-polarized light, and the P-polarized light reflectance of the medium film 150 is 10% or more. At an incident angle of 50° to 72°, the P-polarized light reflectance of the first surface 111 of the first transparent substrate 110 is very low. For example, at an incident angle of 57°, the P-polarized light reflectance of the first surface 111 is only less than 1%. This reduces the reflected light from the first surface 111, i.e., reduces the double image of the light source on the fourth surface 122 side, which is caused by the light reflected by the first surface 111 and the light reflected by the fourth surface 122. In another embodiment, when the light source on the fourth surface 122 side contains 60% to 100% S-polarized light, the orthogonal projection of the medium film 150 onto the second transparent substrate 120 covers only the entire second function display region R211, and the medium film 150 has the ability to reduce the reflection of S-polarized light and has a reflectivity of 6% or less. This weakens the reflected light formed on the fourth surface 122 by the light source on the fourth surface 122 side, and therefore weakens the double image formed by the reflected light formed on the first surface 111 by the light source on the fourth surface 122 side and the reflected light formed on the fourth surface 122.

[0073] Referring to FIG. 18 , based on the embodiment shown in FIG. 3 , a medium film 150 is provided on the fourth surface 122. In one embodiment, when the light source on the fourth surface 122 side contains 60% to 100% P-polarized light, the medium film 150 has the ability to reflect P-polarized light, and the P-polarized light reflectance of the medium film 150 is 10% or more. At an incident angle of 50° to 72°, the P-polarized light reflectance of the first surface 111 of the first transparent substrate 110 is very low. For example, at an incident angle of 57°, the P-polarized light reflectance of the first surface 111 is only less than 1%. This reduces the reflected light from the first surface 111, i.e., reduces the double image of the light reflected by the first surface 111 and the fourth surface 122 from the light source on the fourth surface 122 side. In another embodiment, when the light source on the fourth surface 122 side contains 60% to 100% S-polarized light, the orthogonal projection of the medium film 150 onto the second transparent substrate 120 does not cover the entire first function display region R111, and the medium film 150 has the ability to reduce the reflection of S-polarized light and has a reflectivity of 6% or less. This weakens the reflected light formed on the fourth surface 122 by the light source on the fourth surface 122 side, and therefore weakens the double image formed by the reflected light formed on the first surface 111 by the light source on the fourth surface 122 side and the reflected light formed on the fourth surface 122.

[0074] 19, based on the embodiment shown in FIG. 4, a medium film 150 is provided between the adhesive film 130 and the light-shielding layer 140. In one embodiment, when the light source on the fourth surface 122 side contains 60% to 100% P-polarized light, the medium film 150 has the ability to reflect P-polarized light, and the P-polarized light reflectance of the medium film 150 is 10% or more. At an incident angle of 50° to 72°, the P-polarized light reflectance of the first surface 111 of the first transparent substrate 110 and the fourth surface 122 of the second transparent substrate 120 is very low. For example, at an incident angle of 57°, the P-polarized light reflectance is only less than 1%. This weakens the reflected light from the first surface 111 and the fourth surface 122, i.e., weakens the double image formed by the reflected light from the first surface 111 and the fourth surface 122 by the light source on the fourth surface 122 side.

[0075] Referring to FIG. 20 , based on the embodiment shown in FIG. 3 , a medium film 150 is provided between the adhesive film 130 and the third surface 121. In one embodiment, when the light source on the fourth surface 122 side contains 60% to 100% P-polarized light, the medium film 150 is capable of reflecting P-polarized light, and the P-polarized light reflectance of the medium film 150 is 10% or more. At an incident angle of 50° to 72°, the P-polarized light reflectance of the first surface 111 of the first transparent substrate 110 and the fourth surface 122 of the second transparent substrate 120 is very low. For example, at an incident angle of 57°, the P-polarized light reflectance is only less than 1%. This weakens the reflected light from the first surface 111 and the fourth surface 122, i.e., weakens the double image formed by the reflected light from the first surface 111 and the fourth surface 122 by the light source on the fourth surface 122 side.

[0076] Referring to FIG. 21 , based on the embodiment shown in FIG. 4 , the medium film 150 is wrapped in the adhesive film 130 and attached to the adhesive film 130. In one embodiment, when the light source on the fourth surface 122 side contains 60% to 100% P-polarized light, the medium film 150 has the ability to reflect P-polarized light, and the P-polarized light reflectance of the medium film 150 is 10% or more. At an incident angle of 50° to 72°, the P-polarized light reflectance of the first surface 111 of the first transparent substrate 110 and the fourth surface 122 of the second transparent substrate 120 is very low. For example, at an incident angle of 57°, the P-polarized light reflectance is only less than 1%. This weakens the reflected light from the first surface 111 and the fourth surface 122, i.e., weakens the double image formed by the reflected light from the first surface 111 and the fourth surface 122 by the light source on the fourth surface 122 side.

[0077] 22, based on the embodiment shown in FIG. 3, the medium film 150 is provided on the adhesive film 130 while being wrapped in the adhesive film 130. In one embodiment, when the light source on the fourth surface 122 side contains 60% to 100% P-polarized light, the medium film 150 has the ability to reflect P-polarized light, and the P-polarized light reflectance of the medium film 150 is 10% or more. At an incident angle of 50° to 72°, the P-polarized light reflectance of the first surface 111 of the first transparent substrate 110 and the fourth surface 122 of the second transparent substrate 120 is very low. For example, at an incident angle of 57°, the P-polarized light reflectance is only less than 1%. This weakens the reflected light from the first surface 111 and the fourth surface 122, i.e., weakens the double image formed by the reflected light from the first surface 111 and the fourth surface 122 by the light source on the fourth surface 122 side.

[0078] 23 and 24, FIG. 23 is a structural schematic diagram showing the division of regions of a laminated glass 10 provided in another embodiment of the present application, and FIG. 24 is a cross-sectional layer division diagram of the other embodiment of the present application taken along line II in FIG. 23. The laminated glass 10 further has a colored region R30, which is located on the side of the light-blocking region R10 opposite the light-transmitting region R20. The laminated glass 10 further includes a colored layer 180, which is placed on the second transparent substrate 120 and is provided in the colored region R30. The colored layer 180 is used for alignment when installing the laminated glass 10 and for fixing the vehicle window, or is used on the surface of an adhesive substrate of a fixing member.

[0079] In this embodiment, the colored layer 180 is provided on the outermost surface of the laminated glass 10, on the fourth surface 122 side. The orthogonal projection of the colored layer 180 onto the second transparent substrate 120 covers the colored region R30. The colored region R30 can be used to shield electronic components or wiring that will be attached later. It can also be used to assist in the attachment of the laminated glass 10 to other devices, for example, by facilitating adhesive coating, alignment, or improving adhesive strength. The upper boundary of the first region R110 is higher than the upper boundary of the colored region R30 located in the first region R110. Optionally, the upper boundary of the first region R110 is at least 80 mm higher than the upper boundary of the colored region R30 located in the first region R110, thereby leaving sufficient space for the first function display region R111.

[0080] Referring to Fig. 25, Fig. 25 is a structural schematic diagram showing the division of regions of a laminated glass provided in another embodiment of the present application. The laminated glass 10 further includes one or more first projection light sources 170 and one or more second projection light sources 190. The first projection light sources 170 are used to project a first image P1 onto the first function display regions R111, and each first projection light source 170 is provided corresponding to one first function display region R111. The second projection light sources 190 are used to project a second image P2 onto the second function display regions R111, and each second projection light source 190 is provided corresponding to one second function display region R211.

[0081] In this embodiment, the second projection light source 190 projects onto the second function display region R211, thereby displaying a larger second image P2, thereby increasing the variety of image display capabilities of the laminated glass 10.

[0082] Referring to Fig. 26, Fig. 26 is a structural schematic diagram showing the division of regions of a laminated glass provided in another embodiment of the present application. The laminated glass 10 further includes one or more flexible displays 160 and one or more second projection light sources 190. The flexible displays 160 are provided in the first region R110, and each flexible display 160 is provided corresponding to one first function display region R111. The flexible displays 160 are used to display a first image P1. The second projection light sources 190 are used to project a second image P2 into the second function display region R211, and each second projection light source 190 is provided corresponding to one second function display region R211.

[0083] In this embodiment, the second projection light source 190 projects onto the second function display region R211, thereby displaying a larger second image P2, thereby increasing the variety of image display capabilities of the laminated glass 10.

[0084] The present application provides an HUD system. In one embodiment (see FIG. 9), the HUD system includes a first projection light source 170 and the laminated glass 10 described in any embodiment having only a first functional display region R111. In another embodiment (see FIG. 25), the HUD system includes a first projection light source 170, a second projection light source 190, and the laminated glass 10 described in any embodiment having a second functional display region R111.

[0085] In one embodiment, the projection light beam forming the first image P1 contains 60% to 100% P-polarized light, and the projection light beam forming the second image P2 contains 60% to 100% S-polarized light.

[0086] In another embodiment, the projection light beam forming the first image P1 contains 60% to 100% S-polarized light, and the projection light beam forming the second image P2 contains 60% to 100% P-polarized light.

[0087] In yet another embodiment, the projection light beam forming the first image P1 comprises 60% to 100% P-polarized light, and the projection light beam forming the second image P2 comprises 60% to 100% P-polarized light.

[0088] In yet another embodiment, the projection light beam forming the first image P1 comprises 60% to 100% S-polarized light, and the projection light beam forming the second image P2 comprises 60% to 100% S-polarized light.

[0089] Preferably, the projection light beam contains 100% S-polarized light or 100% P-polarized light, which can achieve a better projection effect.

[0090] Referring to FIG. 27, FIG. 27 is a schematic diagram of a vehicle provided in the present application. The present application further provides a vehicle 1. The vehicle 1 includes the laminated glass 10 described in any of the above embodiments, and the vehicle 1 further includes a vehicle body 20, in which the laminated glass 10 is provided. The laminated glass 10 can be described in detail in the previous description, and will not be repeated here. When the laminated glass 10 is applied to the vehicle 1, the first transparent substrate 110 is provided on the outside of the vehicle 1, and the second transparent substrate 120 is provided on the inside of the vehicle 1.

[0091] In this embodiment, the vehicle 1 may be, but is not limited to, a passenger car, a multi-purpose vehicle (MPV), a sport / suburban utility vehicle (SUV), an off-road vehicle (ORV), a pickup truck, a wagon, a bus, a truck, or the like. The angle between the laminated glass 10 and a vertical plane is called the mounting angle, and the mounting angle of a vehicle is typically 50° to 72°. Without the light-shielding layer 140, on the one hand, a double image would be formed by the reflection of light projected inside the vehicle 1 on the first transparent substrate 110 and the second transparent substrate 120. On the other hand, light from an object outside the vehicle 1 passes through the laminated glass 10 and forms a double image with the reflection of light projected inside the vehicle 1 on the laminated glass 10. The provision of the light-shielding layer 140 weakens or even eliminates the double image. The placement of the medium film 150 further weakens or even eliminates the double image, and weakens or even eliminates the double image effect in the second function display area R211. When the mounting angle is 60°, the reflection of the light-transmitting medium film 150 against the projected light in the first function display area R111 is tested, and the obtained data are shown in the following two tables.

[0092] [Table 1]

[0093] [Table 2]

[0094] In Table 1, if the light source type is a normal light source, the light emitted from the normal light source is an irregular collection of countless polarized light beams, so even if observed directly, it is impossible to determine the direction in which the light intensity is biased. Such light, in which the intensity of light waves vibrating in various directions is the same, is also called natural light. If the light source type is P-polarized, the proportion of P-polarized light in the light emitted from this light source is 60% to 100%. If the light source type is S-polarized, the proportion of S-polarized light in the light emitted from this light source is 60% to 100%. For the types of light source in Table 2, please refer to the description of the light source types in Table 1, and the description will not be repeated here. The anti-reflection film is the previously described medium film 150 that has the ability to reduce the reflection of S-polarized light and has a relatively low reflectivity (less than 6%). The P-polarized light reflective film is the previously described medium film 150 that has the ability to reflect P-polarized light. The S-polarized light reflective film is the previously described medium film 150 that has the ability to reflect S-polarized light. As can be seen from the experimental data in the two tables, in one embodiment, when the first projection light source 170 in the first function display area R111 is a normal light source, after the anti-reflection film is disposed, the reflectance of the fourth surface 122 to the light projected by the first projection light source 170 in the first function display area R111 decreases from 7.5% to 5.1%. In another embodiment, when the first projection light source 170 in the first function display area R111 is P-polarized light, after the P-polarized reflective film is disposed, the reflectance of the fourth surface 122 to the light projected by the first projection light source 170 in the first function display area R111 increases from 0.3% to 11%. In yet another embodiment, when the first projection light source 170 in the first function display area R111 is S-polarized light, after the S-polarized reflective film is disposed, the reflectance of the fourth surface 122 to the light projected by the first projection light source 170 in the first function display area R111 increases from 13% to 22%.

[0095] Optionally, the laminated glass 10 further includes a transparent conductive layer attached between the first transparent substrate 110 and the second transparent substrate 120. The transparent conductive layer has at least one of a heat insulating ability and a heating function by reflecting infrared rays, and the transparent conductive layer covers at least 80% or more of the light-transmitting region R20.

[0096] Optionally, the display distance of the first image P1 is 0.5m-5m, and the first image P1 may be important information such as driving speed, amount of fuel in the fuel tank, engine RPM, etc. Optionally, the display distance of the second image P2 is 7.5m or more, and the second image P2 may be a large image such as route navigation, speeding reminder, or obstacle reminder.

[0097] Although the embodiments of the present application have been shown and described above, the above embodiments are merely illustrative and should not be construed as limiting the present application. Those skilled in the art may make changes, modifications, substitutions, and variations to the above embodiments within the scope of the present application. These improvements and adaptations should also fall within the scope of protection of the present application. [Explanation of symbols]

[0098] 10...laminated glass, 110...first transparent substrate, 111...first surface, 112...second surface, 120...second transparent substrate, 121...third surface, 122...fourth surface, R10...light-shielding region, R20...light-transmitting region, 130...adhesive film, 140...light-shielding layer, R110...first region, R111...first functional display region, P1...first image, R120...second region, R130...third region, 150...medium film, 160...flexible display, 170...first projection light source, R210...main viewing region, R211...second functional display region, P2...second image, R30...colored region, 180...colored layer, 190...second projection light source, 1...vehicle, 20...vehicle body.

Claims

1. Laminated glass, The laminated glass comprises a first transparent substrate, a second transparent substrate, and an adhesive film; the first transparent substrate has a first surface and a second surface provided back to back; the second transparent substrate has a third surface and a fourth surface provided back to back, the third surface being closer to the second surface than the fourth surface; the adhesive film is provided between the second surface and the third surface and is used to bond the first transparent substrate and the second transparent substrate; The laminated glass has a light-transmitting region and a light-shielding region surrounding at least a portion of a periphery of the light-transmitting region, the light-transmitting region has a visible light transmittance of 70% or more, the light-shielding region has a visible light transmittance of 5% or less, the light-shielding region includes a first region located below the light-transmitting region, and the first region includes one or more first function display regions used to display a first image; The laminated glass is characterized by:

2. The light-shielding region is a second region located above the light-transmitting region; a third region located to the side of the light-transmitting region; further comprising:

2. The laminated glass according to claim 1.

3. The first functional display area is provided with at least one flexible display, the flexible display being located between the second surface and the third surface, and the flexible display employing at least one of a MiniLED display, a MicroLED display, and an OLED display; 2. The laminated glass according to claim 1.

4. The first functional display area includes at least one projection display area, a projection light beam capable of forming the first image is incident on the projection display area at an angle of 50° to 72°, and the projection display area has a reflectance of 4% or more for the incident projection light beam.

2. The laminated glass according to claim 1.

5. the first functional display area is the fourth surface, the incident projection light contains 60% to 100% S-polarized light, and the projection display area has a reflectance of 8% or more for the incident projection light; 5. The laminated glass according to claim 4.

6. the first function display area is a medium film on the third surface or a medium film on the fourth surface; The incident projection light contains 60% to 100% P-polarized light, and the projection display area has a reflectance of 8% or more for the incident projection light, or the incident projection light contains 60% to 100% S-polarized light, and the projection display area has a reflectance of 8% or more for the incident projection light; 5. The laminated glass according to claim 4.

7. the first functional display area is a metal film on the third surface, the incident projection light contains 60% to 100% P-polarized light, and the projection display area has a reflectance of 6% or more for the incident projection light; 5. The laminated glass according to claim 4.

8. the first functional display area is laminated PET, the incident projection light contains 60% to 100% P-polarized light, and the projection display area has a reflectance of 10% or more for the incident projection light; 5. The laminated glass according to claim 4.

9. the light-shielding region includes a deep color ink layer or a colored polymer film, the deep color ink layer is provided on the second surface and / or the third surface, and the colored polymer film is provided between the second surface and the third surface; 5. The laminated glass according to claim 3 or 4.

10. the flexible display or the display area is closer to the fourth surface than the deep color ink layer or the pigmented polymer film; 10. The laminated glass according to claim 9.

11. The fourth surface is provided with a colored region, and an upper boundary of the first region is at least 80 mm higher than an upper boundary of the colored region located in the first region.

2. The laminated glass according to claim 1.

12. the light-transmitting area includes one or more second function display areas, and the second function display areas include at least one projection display area used to display a second image; The laminated glass according to any one of claims 1 to 11.

13. The first function display area includes at least one projection display area, the projection display distance of the first image is 0.5 m to 5 m, and the projection display distance of the second image is 7.5 m or more.

13. The laminated glass according to claim 12.

14. a projection light beam forming the first image is incident on a projection display area of ​​the first function display area at an angle of 50° to 72°, and the projection display area of ​​the first function display area has a reflectance of 4% or more with respect to the projection light beam forming the first image; a projection light beam forming the second image is incident on a projection display area of ​​the second function display area at an angle of 50° to 72°, and the projection display area of ​​the second function display area has a reflectance of 8% or more with respect to the projection light beam forming the second image; 14. The laminated glass according to claim 13.

15. The laminated glass further includes a medium film, and the medium film is located at least in the second function display area.

14. The laminated glass according to claim 12 or 13.

16. The medium film is further positioned in the first function display area.

16. The laminated glass according to claim 15.

17. the adhesive film is a constant thickness film, the projection light beam forming the second image contains 60% to 100% P-polarized light, the medium film is a laminated structure consisting of a high refractive index layer and a low refractive index layer, or has at least one metal layer, or is laminated PET, and the projection display area of ​​the second function display area has a reflectance of 10% or more with respect to the projection light beam forming the second image that is incident at an angle of 50° to 72°; 16. The laminated glass according to claim 15.

18. the adhesive film is a constant thickness film or a wedge-shaped film, the fourth surface is provided with the medium film, the medium film is an anti-reflection film, the second function display area is the first surface, the projection light beam forming the second image contains 60% to 100% S-polarized light, the anti-reflection film has a reflectance of 6% or less with respect to the projection light beam forming the second image, and the projection display area of ​​the second function display area has a reflectance of 8% or more with respect to the projection light beam forming the second image that is incident at an angle of 50° to 72°; 16. The laminated glass according to claim 15.

19. the adhesive film is a wedge-shaped film, the projection light beam forming the second image contains 60% to 100% S-polarized light, the medium film is a laminated structure located on the third surface or the fourth surface, the laminated structure is composed of a high refractive index layer and a low refractive index layer, and the projection display area of ​​the second function display area has a reflectance of 28% or more for the projection light beam forming the second image that is incident at an angle of 50° to 72°; 16. The laminated glass according to claim 15.

20. The adhesive film is a wedge-shaped film, the second function display area is the fourth surface, the projection light beam forming the second image contains 60% to 100% S-polarized light, and the projection display area of ​​the second function display area has a reflectance of 8% or more for the projection light beam forming the second image that is incident at an angle of 50° to 72°.

15. The laminated glass according to claim 14.

21. the projection light beam forming the first image comprises 60% to 100% S-polarized light or 60% to 100% P-polarized light; 14. The laminated glass according to claim 13.

22. the light-transmitting region further includes a main viewing region, the second function display region is disposed within the main viewing region, and a lower boundary of the main viewing region is at least 25 mm higher than an upper boundary of the first region; 13. The laminated glass according to claim 12.

23. 1. A head-up display (HUD) system, comprising: The HUD system comprises a first projection light source and the laminated glass according to any one of claims 1 to 22, wherein the first projection light source is used to project a projection light beam that forms the first image onto the first function display area. A HUD system characterized by:

24. the light-transmitting area includes one or more of the second functional display areas, and the HUD system further includes a second projection light source, the second projection light source being used to project projection light rays that form the second image onto the second functional display areas; 24. The HUD system of claim 23.

25. the projection light beam forming the first image comprises 60% to 100% P-polarized light, and the projection light beam forming the second image comprises 60% to 100% S-polarized light; 25. The HUD system of claim 24.

26. the projection light beam forming the first image comprises 60% to 100% S-polarized light, and the projection light beam forming the second image comprises 60% to 100% P-polarized light; 25. The HUD system of claim 24.

27. the projection light beam forming the first image comprises 60% to 100% P-polarized light, and the projection light beam forming the second image comprises 60% to 100% P-polarized light; 25. The HUD system of claim 24.

28. the projection light beam forming the first image comprises 60% to 100% S-polarized light, and the projection light beam forming the second image comprises 60% to 100% S-polarized light; 25. The HUD system of claim 24.

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