Laminated glass assembly, signal transmission system and vehicle

Abstract

A laminated glass assembly (100), a signal transmission system (10), and a vehicle (1) are provided. The laminated glass assembly (100) includes a laminated glass (110), a radio wave transmission layer (120), and a heat insulating layer (130). The laminated glass (110) has a signal transmission region (Q1) and a non-signal transmission region (Q2). The radio wave transmission layer (120) is placed on the laminated glass (110), and the orthogonal projection of the radio wave transmission layer (120) on the laminated glass (110) covers the signal transmission region (Q1) and the non-signal transmission region (Q2). The heat insulating layer (130) is placed on the laminated glass (110), and the orthogonal projection of the heat insulating layer (130) on the laminated glass (110) covers the non-signal transmission region (Q2) and avoids the signal transmission region (Q1). The laminated glass assembly of the present application can achieve both heat insulating function and high local infrared light transmittance function.

Description

[Technical field]

[0001] REFERENCE TO RELATED APPLICATIONS This application claims priority to China Patent Application No. 202111305472.4, filed on November 05, 2021, entitled "Laminated Glass Assembly, Signal Transmission System and Vehicle", the entire contents of which are incorporated herein by reference.

[0002] The present application relates to the field of autonomous driving of vehicles, and in particular to a laminated glass assembly, a signal transmission system and a vehicle. [Background technology]

[0003] With the development of intelligent driving automobiles, the application demand for installing detectors in vehicles is gradually increasing, and insulating glass is widely used for vehicle windows. When the detection signal from the detector passes through the insulating glass, it is absorbed and / or reflected by the insulating glass. Therefore, the transmittance of the insulating glass for the detection signal transmitted by the detector is greatly reduced, the detection accuracy of the detector is reduced, and the detector cannot operate normally. Summary of the Invention

[0004] The present application provides a laminated glass assembly. The laminated glass assembly includes a laminated glass, a radio wave transmission layer, and a thermal insulation layer. The laminated glass has a signal transmission area and a non-signal transmission area. The radio wave transmission layer is placed on the laminated glass, and an orthogonal projection of the radio wave transmission layer on the laminated glass covers the signal transmission area and the non-signal transmission area. The thermal insulation layer is placed on the laminated glass, and an orthogonal projection of the thermal insulation layer on the laminated glass covers the non-signal transmission area and avoids the signal transmission area.

[0005] 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 opposed to the first surface. The second transparent substrate has a third surface and a fourth surface opposed to the third surface, the third surface being closer to the second surface than the fourth surface. The adhesive film is used to bond the first transparent substrate and the second transparent substrate.

[0006] The second transparent substrate, the adhesive film and the heat insulating layer all have through holes communicating with each other, and at least a portion of each through hole is located in the signal transmission region. The radio wave transparent layer is provided on the second surface. The heat insulating layer is provided on a surface of the radio wave transparent layer close to the second transparent substrate, or the heat insulating layer is provided on the third surface, or the heat insulating layer is provided within the adhesive film.

[0007] The heat insulating layer and the adhesive film each have a through hole communicating with each other, and at least a portion of each through hole is located in the signal transmission region. The radio wave transparent layer is provided on the fourth surface. The heat insulating layer is provided on the second surface, or the heat insulating layer is provided on the third surface, or the heat insulating layer is provided within the adhesive film.

[0008] The heat insulating layer and the adhesive film each have through holes communicating with each other, and at least a portion of each through hole is located in the signal transmission region. The radio wave transparent layer is provided on the third surface. The heat insulating layer is provided on the second surface, or the heat insulating layer is provided on a surface of the radio wave transparent layer close to the first transparent substrate, or the heat insulating layer is provided within the adhesive film.

[0009] The plurality of through holes are provided in the inner region or edge of the laminated glass assembly, and the area S of the orthogonal projection on the second surface of the signal transmission region is S≧50mm*80mm.

[0010] The through holes of the adhesive film are filled with a filler that has a blocking rate of 2% or less for detection signals that are perpendicularly incident and have a wavelength in the range of 380 nm to 1650 nm or 3 mm to 30 mm, and a blocking rate of 5% or less for detection signals that are incident at an incident angle of 55° to 70° and have a wavelength in the range of 380 nm to 1650 nm or 3 mm to 30 mm.

[0011] The orthogonal projection of the laminated glass with the radio wave transmitting layer occupies 70% or more of the area of ​​the laminated glass. The orthogonal projection of the laminated glass with the heat insulating layer occupies 70% or more of the area of ​​the laminated glass. The overlapping area between the orthogonal projection of the laminated glass with the radio wave transmitting layer and the orthogonal projection of the laminated glass with the heat insulating layer occupies 80% or more of the area of ​​the orthogonal projection of the laminated glass with the heat insulating layer.

[0012] The overlapping area between the radio wave transparent layer and the heat insulating layer has a total solar energy transmittance of 53% or less. The signal transmission area has a transmittance of 85% or more for detection signals incident at an incident angle of 55° to 70° and having a wavelength in the range of 380 nm to 1650 nm or 3 mm to 30 mm.

[0013] The radio wave transmitting layer has at least one laminate structure including a high refractive index layer and a low refractive index layer, the high refractive index layer having a refractive index of 1.9 to 2.6, and the low refractive index layer having a refractive index of 1.3 to 1.8. The heat insulating layer includes at least one of a metallic silver layer, a silver alloy layer, or a transparent conductive oxide layer.

[0014] The transmittance of a signal transmission area with a radio wave permeable layer for a detection signal incident at an incident angle of 55° to 70° is at least 3% greater than the transmittance of a signal transmission area without a radio wave permeable layer for a detection signal incident at an incident angle of 55° to 70°.

[0015] The second transparent substrate is tinted glass.

[0016] The adhesive film is an adhesive film having heat insulating properties.

[0017] The present application further provides a signal transmission system. The signal transmission system includes a detector and the above-mentioned laminated glass assembly. The detector is provided corresponding to the signal transmission area. A detection signal transmitted and / or received by the detector passes through the signal transmission area. The wavelength of the detection signal is in the range of 380 nm to 1650 nm or 3 mm to 30 mm, and the detection signal is incident on the signal transmission area at an incident angle of 55° to 70°.

[0018] When the second transparent substrate, the adhesive film and the heat insulating layer all have through holes communicating with each other, the detector is provided in at least one of the through holes, and the distance d between the detector and the second surface is in the range of 0 mm≦d≦1 mm. Or, the detector is provided on one side of the second transparent substrate away from the first transparent substrate, and the distance d between the detector and the fourth surface is in the range of 0 mm≦d≦25 mm. When only the adhesive film and the heat insulating layer all have through holes communicating with each other, the detector is provided on one side of the second transparent substrate away from the first transparent substrate, and the distance d between the detector and the fourth surface is in the range of 0 mm≦d≦25 mm.

[0019] The detection signal is circularly polarized light, or P polarized light, or a mixture of P polarized light and S polarized light, and the proportion of P polarized light in the mixture is 50% or more.

[0020] The detector is a visible light camera, a near infrared camera, a laser radar or a millimeter wave radar.

[0021] The present application further provides a vehicle, comprising: a vehicle body and the above-mentioned signal transmission system, the signal transmission system being mounted on the vehicle body.

[0022] The laminated glass assembly according to the present application includes a laminated glass, a radio wave transmission layer, and a heat insulating layer. The laminated glass has a signal transmission area and a non-signal transmission area. The radio wave transmission layer is placed on the laminated glass, and the orthogonal projection of the radio wave transmission layer on the laminated glass covers the signal transmission area and the non-signal transmission area. The heat insulating layer is placed on the laminated glass, and the orthogonal projection of the heat insulating layer on the laminated glass covers the non-signal transmission area and avoids the signal transmission area. In the laminated glass assembly according to the present application, a part of the heat insulating layer corresponding to the signal transmission area is removed, and the radio wave transmission layer covers the signal transmission area and the non-signal transmission area, so that the laminated glass assembly has a heat insulating function and improves the transmittance of the signal transmission area to the detection signal. As a result, the laminated glass assembly according to the present application has both a heat insulating function and a function of high local infrared light transmittance. [Brief description of the drawings]

[0023] In order to more clearly describe the technical solutions of the embodiments of the present application, the following briefly introduces the drawings necessary for the embodiments. Obviously, the drawings described are only some embodiments of the present application, and those skilled in the art can obtain other drawings from these drawings without creative efforts. [Figure 1] FIG. 1 is a schematic diagram illustrating a laminated glass assembly according to one embodiment of the present application. [Diagram 2] FIG. 2 is a cross-sectional view of the layered structure taken along line AA in FIG. 1 according to one embodiment of the present application. [Diagram 3] FIG. 3 is a cross-sectional view of a layer structure taken along line AA in FIG. 1 according to another embodiment of the present application. [Figure 4] FIG. 4 is a cross-sectional view of a layer structure taken along line AA in FIG. 1 according to another embodiment of the present application. [Diagram 5] FIG. 5 is a cross-sectional view of a layer structure taken along line AA in FIG. 1 according to another embodiment of the present application. [Figure 6] FIG. 6 is a cross-sectional view of a layer structure taken along line AA in FIG. 1 according to another embodiment of the present application. [Figure 7] FIG. 7 is a cross-sectional view of a layer structure taken along line AA in FIG. 1 according to another embodiment of the present application. [Figure 8] FIG. 8 is a cross-sectional view of a layer structure taken along line AA in FIG. 1 according to another embodiment of the present application. [Figure 9] FIG. 9 is a cross-sectional view of a layer structure taken along line AA in FIG. 1 according to another embodiment of the present application. [Figure 10] FIG. 10 is a cross-sectional view of a layer structure taken along line AA in FIG. 1 according to another embodiment of the present application. [Figure 11] FIG. 11 is a schematic diagram showing a laminated glass assembly according to another embodiment of the present application. [Figure 12] FIG. 12 is a cross-sectional view taken along line BB in FIG. 11 according to one embodiment of the present application. [Figure 13] FIG. 13 is a schematic diagram showing a laminated glass assembly according to another embodiment of the present application. [Figure 14] FIG. 14 is a cross-sectional view taken along line CC in FIG. 13 according to one embodiment of the present application. [Figure 15] FIG. 15 is a cross-sectional view of the layer structure of FIG. 5 with a filler material added thereto according to an embodiment of the present application. [Figure 16] FIG. 16 is a cross-sectional view of the layer structure of FIG. 8 with a filler material added thereto according to an embodiment of the present application. [Figure 17] FIG. 17 is a schematic diagram showing a signal transmission system according to an embodiment of the present application. [Figure 18] FIG. 18 is a schematic diagram showing a signal transmission system according to another embodiment of the present application. [Figure 19] FIG. 19 is a schematic diagram showing a signal transmission system according to yet another embodiment of the present application. [Figure 20] FIG. 20 is a schematic diagram showing a vehicle according to an embodiment of the present application. [Figure 21] FIG. 21 is a schematic diagram showing a vehicle according to another embodiment of the present application. [Figure 22]FIG. 22 is a schematic diagram showing a vehicle according to yet another embodiment of the present application. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0024] Hereinafter, the technical solutions in the embodiments of the present application will be described clearly and comprehensively with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only some embodiments of the present application, and not all embodiments. Based on the embodiments in the present application, all other embodiments that a person skilled in the art can obtain without creative efforts all belong to the protection scope of the present application.

[0025] In the specification, claims and drawings of this application, terms such as "first" and "second" are used to distinguish different objects, not to describe a particular sequence. Furthermore, terms such as "comprise", "include", or any other variant are intended to cover, not exclude, the inclusion of other components. For example, a process, method, system, product or device that includes a series of steps or units is not limited to the listed steps or units, and may optionally further include other steps or units that are not listed, or may optionally further include other steps or units that are specific to these processes, methods, products or devices.

[0026] An "embodiment" referred to in this specification means that a particular feature, structure, or characteristic described in connection with an embodiment can be included in at least one embodiment of the present application. The appearance of such words anywhere in the specification does not necessarily refer to the same embodiment, and is not an independent embodiment or an alternative embodiment that is mutually exclusive with other embodiments. Those skilled in the art can understand, explicitly or implicitly, that the embodiments described in this specification can be combined with other embodiments.

[0027] Referring to FIG. 1, FIG. 1 is a schematic diagram showing a laminated glass assembly according to one embodiment of the present application. The present application provides a laminated glass assembly 100. The laminated glass assembly 100 includes a laminated glass 110, a radio wave transmission layer 120, and a heat insulating layer 130. The laminated glass 110 has a signal transmission region Q1 and a non-signal transmission region Q2. The radio wave transmission layer 120 is placed on the laminated glass 110, and the orthogonal projection of the radio wave transmission layer 120 on the laminated glass 110 covers the signal transmission region Q1 and the non-signal transmission region Q2. The heat insulating layer 130 is placed on the laminated glass 110, and the orthogonal projection of the heat insulating layer 130 on the laminated glass 110 covers the non-signal transmission region Q2 and avoids the signal transmission region Q1.

[0028] The laminated glass assembly 100 is used to be installed in a vehicle. In one embodiment, the laminated glass assembly 100 is installed as a front windshield of the vehicle. In another embodiment, the laminated glass assembly 100 is installed as a rear windshield of the vehicle. In this application, the laminated glass assembly 100 is described as being installed as a front windshield of the vehicle.

[0029] The laminated glass 110 has a signal transmission region Q1 and a non-signal transmission region Q2. The detection signal transmitted and / or received by the detector 200 is transmitted through the signal transmission region Q1. The signal transmission region Q1 has a relatively high transmittance for the detection signal. The signal transmission region Q1 has a transmittance of preferably 85% or more for the detection signal incident at an incident angle of 55° to 70°, more preferably 90% or more, and further preferably 95% or more. This ensures that the detector 200 in the vehicle operates normally and has high detection accuracy. Here, the incident angle is the angle between the incident detection signal and the normal to the signal transmission region Q1.

[0030] Specifically, the wavelength of the detection signal is in the range of 380 nm to 1650 nm or 3 mm to 30 mm. Examples of the detector 200 include a visible light camera (380 nm to 780 nm), a near-infrared camera (780 nm to 1650 nm), a laser radar (light detection and ranging, LiDAR) (905 nm, 1550 nm), and a millimeter wave radar (3 mm to 30 mm), and are used for imaging, ranging, positioning, and the like. The number of signal transmission regions Q1 may be one or more, and can be set according to actual needs.

[0031] Specifically, the detection signal may be circularly polarized light, P polarized light, or a mixed light of P polarized light and S polarized light, with the proportion of P polarized light in the mixed light being 50% or more. In the case of a laser radar, the signal transmission region Q1 needs to have a higher transmittance for the detection signal from the laser radar due to high requirements for vehicle safety. It is preferable that the Brewster angle of the P polarized light incident on the laminated glass and the incident angle of the detection signal are approximately equal, and the detection signal from the laser radar is P polarized light or a mixed light with a proportion of P polarized light of 80% or more.

[0032] The radio wave transmission layer 120 is placed on the laminated glass 110, and the orthogonal projection of the radio wave transmission layer 120 on the laminated glass 110 covers the signal transmission region Q1. The radio wave transmission layer 120 can increase the transmittance of the signal transmission region Q1 for a detection signal incident at an incident angle of 55° to 70°. The transmittance is measured and calculated according to International Organization for Standardization (ISO) 9050 when the detection signal is incident at an incident angle of 55° to 70°. Preferably, the transmittance of the signal transmission region Q1 with the radio wave transmission layer 120 for a detection signal incident at an incident angle of 55° to 70° is at least 3% greater, more preferably at least 5% greater, and even at least 8% greater than the transmittance of the signal transmission region Q1 without the radio wave transmission layer 120 for a detection signal incident at an incident angle of 55° to 70°.

[0033] The orthogonal projection of the radio wave transmission layer 120 on the laminated glass 110 further covers the non-signal transmission region Q2. In addition, the orthogonal projection of the radio wave transmission layer 120 on the laminated glass 110 occupies 70% or more of the area of ​​the laminated glass 110, for example, 70%, 80%, 90%, 95%, 100%, etc. Therefore, after the radio wave transmission layer 120 is deposited on the laminated glass 110, there is no need to remove a part of the radio wave transmission layer 120 corresponding to the non-signal transmission region Q2. In addition to ensuring an improvement in the transmittance of the signal transmission region Q1 to the detection signal, the difficulty of the process can be greatly reduced and production efficiency can be improved.

[0034] The heat insulating layer 130 is placed on the laminated glass 110, and the orthogonal projection of the heat insulating layer 130 on the laminated glass 110 covers the non-signal transmission region Q2 and does not cover the signal transmission region Q1. That is, in order to ensure that the transmittance of the signal transmission region Q1 to the detection signal by the heat insulating layer 130 is not reduced, after the heat insulating layer 130 is deposited on the laminated glass 110, only a part of the heat insulating layer 130 corresponding to the signal transmission region Q1 only needs to be removed. Note that, after the heat insulating layer 130 is deposited on the laminated glass 110 and a film removing operation is performed, the orthogonal projection of the heat insulating layer 130 on the laminated glass 110 covers the non-signal transmission region Q2 and avoids the signal transmission region Q1. In addition, the orthogonal projection of the heat insulating layer 130 on the laminated glass 110 occupies more than 70% of the area of ​​the laminated glass 110. The heat insulating layer 130 reflects or absorbs near infrared rays, so that the non-signal transmission region Q2 of the laminated glass 110 has a heat insulating effect.

[0035] The overlapping area of ​​the orthogonal projection of the radio wave transmission layer 120 on the laminated glass 110 and the orthogonal projection of the heat insulating layer 130 on the laminated glass 110 accounts for 80% or more of the area of ​​the orthogonal projection of the heat insulating layer 130 on the laminated glass 110. Specifically, the laminated glass 110 has a total solar energy transmittance of 53% or less in the overlapping area of ​​the radio wave transmission layer 120 and the heat insulating layer 130. The signal transmission region Q1 has a transmittance of 85% or more for a detection signal having a wavelength in the range of 380 mm to 1650 mm or 3 mm to 30 mm and incident at an incident angle of 55° to 70°. This ensures that the laminated glass 110 still has an effective heat insulating effect without removing a part of the radio wave transmission layer 120 corresponding to the non-signal transmission region Q2.

[0036] The laminated glass assembly 100 according to the present application comprises a laminated glass 110, a radio wave transparent layer 120 and a heat insulating layer 130. The laminated glass 110 has a signal transmission region Q1 and a non-signal transmission region Q2. The radio wave transparent layer 120 is placed on the laminated glass 110, and the orthogonal projection of the radio wave transparent layer 120 on the laminated glass 110 covers the signal transmission region Q1 and the non-signal transmission region Q2. The heat insulating layer 130 is placed on the laminated glass 110, and the orthogonal projection of the heat insulating layer 130 on the laminated glass 110 covers the non-signal transmission region Q2 and avoids the signal transmission region Q1. In the laminated glass assembly of the present application, a portion of the insulating layer 130 corresponding to the signal transmission region Q1 is removed, and the radio wave transparent layer 120 covers the signal transmission region Q1 and the non-signal transmission region Q2, thereby providing the laminated glass assembly 100 with insulating function and improving the transmittance of the signal transmission region Q1 for detection signals. As a result, the laminated glass assembly 100 of the present application has both insulating function and high localized infrared light transmittance.

[0037] In one embodiment, the laminated glass 110 includes a first transparent substrate 1110, a second transparent substrate 1120, and an adhesive film. The first transparent substrate 1110 has a first surface 1111 and a second surface 1112 facing the first surface 1111. The second transparent substrate 1120 has a third surface 1121 and a fourth surface 1122 facing the third surface 1121, and the third surface 1121 is closer to the second surface 1112 than the fourth surface 1122. The adhesive film 1130 is used to bond the first transparent substrate 1110 and the second transparent substrate 1120 together.

[0038] In this embodiment, the intermediate adhesive film 1130 is a polyvinyl butyral (PVB), ionic adhesive film (e.g., Sentry Glass (R) The intermediate adhesive film 1130 may be made of a material such as Polysilicon Polypropylene (SGP), ethylene vinyl acetate (EVA), or polyurethane (PU), and it is sufficient for the intermediate adhesive film 1130 to firmly adhere the first transparent substrate 1110 and the second transparent substrate 1120 together.

[0039] The following describes one application scenario of the laminated glass 110. When the laminated glass 110 is used in a vehicle, the laminated glass 110 is attached to the vehicle as a windshield at a specific inclination angle. The first transparent substrate 1110 of the laminated glass 110 is the substrate of the laminated glass 110 exposed to the outside of the vehicle, and the second transparent substrate 1120 is the substrate of the laminated glass 110 inside the vehicle.

[0040] In one embodiment, the first transparent substrate 1110 has a vertical visible light transmittance TL of 88% or more in ISO9050. In another embodiment, the first transparent substrate 1110 has a vertical visible light transmittance TL of 90% or more in ISO9050. In yet another embodiment, the first transparent substrate 1110 has a vertical visible light transmittance TL of 92% or more in ISO9050. The visible light transmittance of the laminated glass 110 is ensured, and as a result, the field of view (FOV) through the laminated glass 110 is clearer.

[0041] For example, the first transparent substrate 1110 can be soda-lime-silica glass, high-alumina glass, borosilicate glass, etc., and the second transparent substrate 1120 can be high-alumina glass or borosilicate glass. Thereby, the strength of the laminated glass 110 is ensured, and the laminated glass 110 can withstand a certain strength of impact. At the same time, the thickness d1 of the first transparent substrate 1110 is in the range of 1.6 mm≦d1≦4 mm, the thickness d2 of the second transparent substrate 1120 is in the range of 0.3 mm≦d2≦2.3 mm, and the total thickness d of the laminated glass 110 after lamination is d≧4.2 mm. Thereby, it is ensured that the laminated glass 110 can be applied to different lightweight requirements.

[0042] In another embodiment, the laminated glass 110 has multiple transparent substrates, and accordingly has multiple adhesive films 1130 that enable the multiple transparent substrates to be firmly bonded. In this application, the laminated glass 110 having two transparent substrates is described as an example.

[0043] In this application, the thickness of the radio wave transmission layer 120 and the thickness of the heat insulating layer 130 are at the nm level, and the human eye cannot distinguish their thicknesses. In addition, the first transparent substrate 1110, the second transparent substrate 1120, the radio wave transmission layer 120, the heat insulating layer 130 and the adhesive film 1130 are closely connected, and there is no gap between them. In order to more clearly explain the structure of the laminated glass assembly 100, the drawings of the laminated glass assembly 100 in this application show the thickness of each component increased and each component separated as a layer structure. The specific structure of the laminated glass assembly 100 will be described below.

[0044] 1, 2, 3 and 4 together, FIG. 2 is a cross-sectional view of a layer structure taken along line AA in FIG. 1 according to one embodiment of the present application. FIG. 3 is a cross-sectional view of a layer structure taken along line AA in FIG. 1 according to another embodiment of the present application. FIG. 4 is a cross-sectional view of a layer structure taken along line AA in FIG. 1 according to another embodiment of the present application. In one embodiment, the second transparent substrate 1120, the adhesive film 1130 and the heat insulating layer 130 all have through holes 140 communicating with each other, and each through hole 140 is at least partially located in the signal transmission region Q1. The radio wave transmission layer 120 is provided on the second surface 1112. The heat insulating layer 130 is provided on a surface of the radio wave transmission layer 120 close to the second transparent substrate 1120 (as shown in FIG. 2), or the heat insulating layer 130 is provided on the third surface 1121 (as shown in FIG. 3), or the heat insulating layer 130 is provided in the adhesive film 1130 (as shown in FIG. 4).

[0045] In this embodiment, at least a portion of each through hole 140 is located in the signal transmission region Q1. That is, the through hole 140 is located not only in the signal transmission region Q1 but also in the non-signal transmission region Q2. The detection signal from the detector 200 is transmitted through the through hole 140, the radio wave transmission layer 120, and the first transparent substrate 1110 without passing through the second transparent substrate 1120, the adhesive film 1130, and the heat insulating layer 130. This avoids blocking of the detection signal by the second transparent substrate 1120, the adhesive film 1130, and the heat insulating layer 130, and improves the freedom of selection of the second transparent substrate 1120, the adhesive film 1130, and the heat insulating layer 130. For example, the second transparent substrate 1120 can be a colored glass. The adhesive film 1130 can be an adhesive film with heat insulating performance. The heat insulating layer 130 can be a heat insulating layer with higher performance. This allows the product mix of laminated glass to be more diversified.

[0046] In this embodiment, the radio wave transparent layer 120 is disposed on the second surface 1112. By a method such as physical vapor deposition (PVD) or chemical vapor deposition (CVD), the radio wave transparent layer 120 having the function of high signal transmittance can be deposited on the second surface 1112, thereby increasing the transmittance of the signal transmission region Q1 to the detection signal.

[0047] In this embodiment, the heat insulating layer 130 is provided on the surface of the radio wave transparent layer 120 close to the second transparent substrate 1120 (as shown in FIG. 2), or the heat insulating layer 130 is provided on the third surface 1121 (as shown in FIG. 3), or the heat insulating layer 130 is provided in the adhesive film 1130 (as shown in FIG. 4). The heat insulating layer 130 can be directly deposited on the surface of the radio wave transparent layer 120 close to the second transparent substrate 1120 or on the third surface 1121 by methods such as PVD, CVD, or sol-gel spraying. Or, the heat insulating layer 130 is deposited on a polymer film such as polyethylene terephthalate (PET), and then interlaid into the adhesive film 1130, thereby becoming a part of the adhesive film 1130.

[0048] The following is an embodiment in which the orthogonal projection of the heat insulating layer 130 on the laminated glass 110 avoids the signal transmission region Q1. In one embodiment, the heat insulating layer 130 can be first deposited on the surface of the radio wave transmission layer 120 close to the second transparent substrate 1120 or on the third surface 1121, or the heat insulating layer 130 is deposited on a polymer film and then inserted into the adhesive film 1130 to become a part of the adhesive film 1130. Then, a part of the heat insulating layer 130 corresponding to the signal transmission region Q1 is removed. In another embodiment, a masking layer is first covered on the surface of the radio wave transmission layer 120 close to the second transparent substrate 1120 or on the third surface 1121, which corresponds to the signal transmission region Q1. Then, the heat insulating layer 130 is deposited on the surface of the radio wave transmission layer 120 close to the second transparent substrate 1120 or on the third surface 1121. Finally, the masking layer is removed. Or, a masking layer is first covered on a part of the polymer film corresponding to the signal transmission region Q1. Next, the heat insulating layer 130 is deposited on the polymer film, and then the masking layer is removed. Finally, the heat insulating layer 130 is inserted into the adhesive film 1130. In this way, the heat insulating effect of the laminated glass 110 can be maintained without affecting the transmittance of the signal transmission region Q1 to the detection signal.

[0049] In this embodiment, the radio wave transmission layer 120 is used to increase the transmittance of the signal transmission region Q1 for the detection signal incident at an incident angle of 55° to 70°. The radio wave transmission layer 120 has at least one laminate structure including a high refractive index layer and a low refractive index layer, where the refractive index of the high refractive index layer is 1.9 to 2.6, and the refractive index of the low refractive index layer is 1.3 to 1.8. The design of the laminate structure including the high refractive index layer and the low refractive index layer increases the transmittance. The high refractive index layer may have multiple sub-layers, and / or the low refractive index layer may have multiple sub-layers, and the high refractive index layer and the low refractive index layer are different in at least one of the material of each sub-layer, the thickness of each sub-layer, or the refractive index of each sub-layer. The heat insulating layer 130 is used to reflect and / or absorb infrared rays so that the laminated glass has a better heat insulating effect. The heat insulating layer 130 includes at least one of a metallic silver layer, a silver alloy layer, or a transparent conductive oxide (TCO) layer. The metallic silver layer, the silver alloy layer or the TCO layer has good infrared reflecting properties, thereby reducing the infrared transmittance of the laminated glass. The material of the silver alloy layer is preferably a silver-copper alloy, a silver-indium alloy, a silver-gold alloy, etc. The silver content of the silver alloy layer is preferably 95% or more, more preferably 98% or more. The TCO layer includes at least one TCO layer, and is preferably indium-doped tin oxide (ITO), fluorine-doped tin oxide (FTO), antimony-doped tin oxide (ATO), aluminum-doped zinc oxide (AZO), indium-doped zinc oxide (IZO), gallium-doped zinc oxide (GZO), etc. The thermal insulation layer 130 further includes other dielectric layers.

[0050] In the related art, the embodiment is usually as follows, so that the insulating glass is additionally provided with a signal transmission area that can increase the signal transmittance. After the radio wave transmission layer is deposited on the entire surface of the glass by magnetron sputtering, a part of the deposited radio wave transmission layer corresponding to the non-signal transmission area is removed. Or, a masking layer is first covered on a part of the glass corresponding to the non-signal transmission area, then a radio wave transmission layer is deposited on the glass, and finally the masking layer is removed. However, since the area of ​​the orthogonal projection on the glass of the non-signal transmission area accounts for more than 80% of the area of ​​the area where the glass is located, in the related art, it is not ideal in terms of production efficiency and process complexity to increase the film removal process for the signal transmission area, which has a relatively small area ratio. As a result, the quality cost in the batch production process is high.

[0051] Compared with the related art, for example, specifically (as shown in FIG. 2), in ISO9050, the first transparent substrate 1110 has a vertical visible light transmittance TL of 89.9%. 92 nm thick ZnSnOx, 7 nm thick TiOx, 117 nm thick SiO2, and 25 nm thick TiOx are sequentially deposited on the second surface 1112 to form the radio wave transmission layer 120. Then, 11 nm thick AZO, 12.8 nm thick Ag, 9 nm thick TiOx, 60 nm thick ZnSnOx, 20 nm thick AZO, 9.2 nm thick Ag, 9 nm thick TiOx, 8 nm thick AZO, 10 nm thick ZnSnOx, and 10 nm thick Si3N4 are sequentially deposited on the surface of the radio wave transmission layer 120 close to the second transparent substrate 1120 to form the heat insulating layer 130. Also, a part of the heat insulating layer 130 corresponding to the signal transmission region Q1 is removed. Experimental tests are performed on the laminated glass assembly 100 mounted on the vehicle 1 at an angle α of 60°. At the overlap region of the radio wave transparent layer 120 and the thermal insulation layer 130, the laminated glass assembly 100 has a normal visible light transmittance TL of 75.6%. At the overlap region of the radio wave transparent layer 120 and the thermal insulation layer 130, the laminated glass assembly 100 has a reflectance RL of 14.1% for visible light incident on the fourth surface 1122. At the overlap region of the radio wave transparent layer 120 and the thermal insulation layer 130, the laminated glass assembly 100 has a total solar energy transmittance TTS of 51.3%. According to the International Commission on Illumination (CIE) 1976 standard, the color value expression formula of the laminated glass assembly 100 in the overlapping region of the radio wave transparent layer 120 and the heat insulating layer 130 is L*=43.8, a*=-1.8, b*=-9.8, and the laminated glass assembly 100 has a light blue appearance. The signal transmission region Q1 has a transmittance Ts1 of 87.04% for a detection signal having a wavelength of 905 nm incident at an incident angle of 60°, and the signal transmission region Q1 without the radio wave transparent layer 120 has a transmittance Ts2 of 81.5% for a detection signal having a wavelength of 905 nm incident at an incident angle of 60°, and the transmittance Ts1 is improved by 5.54% compared with the transmittance Ts2.As can be seen from experimental tests, in this embodiment, the setting of the insulating layer 130 can effectively block heat, the setting of the radio wave permeable layer 120 can effectively increase the transmittance of signals in the signal transmission region Q1, and the overlapping setting of the insulating layer 130 and the radio wave permeable layer 120 can also provide a color appearance that is pleasant to the human eye, such as light blue.

[0052] In this embodiment (as shown in FIG. 2), it is not necessary to remove a part of the radio wave transmission layer 120 corresponding to the non-signal transmission region Q2, and it is only necessary to remove a part of the heat insulating layer 130 corresponding to the signal transmission region Q1, which makes the manufacturing process simpler. Therefore, the laminated glass assembly 100 of the present application is manufactured with high efficiency while achieving both heat insulating function and high local infrared light transmittance. At the same time, in this embodiment, a part of the radio wave transmission layer 120 can be used as a base for the heat insulating layer 130. In the processing and molding process of the laminated glass assembly 100, the radio wave transmission layer 120 can effectively prevent alkali metal ions in the first transparent substrate 1110 from being liberated to the heat insulating layer 130. Therefore, the heat insulating function of the heat insulating layer 130 can be maintained during the manufacturing process of the laminated glass 100 without the need for an additional base film layer for protecting the heat insulating layer. In addition, the radio wave transmission layer 120 can also play a role in adjusting color. The process of sequentially depositing the radio wave transparent layer 120 and the insulating layer 130 on the second surface 1112 is efficient and simple, and thus the laminated glass assembly 100 combines the functions of insulating and high local infrared light transmittance, and can be produced with high efficiency.

[0053] 1, 5, 6 and 7 together, FIG. 5 is a cross-sectional view of a layer structure taken along line AA in FIG. 1 according to another embodiment of the present application. FIG. 6 is a cross-sectional view of a layer structure taken along line AA in FIG. 1 according to another embodiment of the present application. FIG. 7 is a cross-sectional view of a layer structure taken along line AA in FIG. 1 according to another embodiment of the present application. In another embodiment, the heat insulating layer 130 and the adhesive film 1130 both have through holes 140 communicating with each other, and each through hole 140 is at least partially located in the signal transmission region Q1. The radio wave transparent layer 120 is provided on the fourth surface 1122. The heat insulating layer 130 is provided on the second surface 1112 (as shown in FIG. 5), or the heat insulating layer 130 is provided on the third surface 1121 (as shown in FIG. 6), or the heat insulating layer 130 is provided in the adhesive film 1130 (as shown in FIG. 7).

[0054] In this embodiment, at least a portion of each through hole 140 is located in the signal transmission region Q1. That is, the through holes 140 are located not only in the signal transmission region Q1 but also in the non-signal transmission region Q2. The detection signal from the detector 200 is transmitted through the radio wave transmission layer 120, the second transparent substrate 1120, the through holes 140, and the first transparent substrate 1110 without passing through the adhesive film 1130 and the heat insulating layer 130. This avoids blocking of the detection signal by the adhesive film 1130 and the heat insulating layer 130.

[0055] In this embodiment, the radio wave transparent layer 120 is disposed on the fourth surface 1122. By a method such as PVD or CVD, the radio wave transparent layer 120 having the function of high signal transmittance can be deposited on the fourth surface 1122, thereby increasing the transmittance of the signal transmission region Q1 to the detection signal.

[0056] In this embodiment, the thermal insulation layer 130 is provided on the second surface 1112 (as shown in FIG. 5), or the thermal insulation layer 130 is provided on the third surface 1121 (as shown in FIG. 6), or the thermal insulation layer 130 is provided in the adhesive film 1130 (as shown in FIG. 7). The thermal insulation layer 130 can be deposited directly on the second surface 1112 or on the third surface 1121 by methods such as PVD, CVD or sol-gel spraying. Or, the thermal insulation layer 130 is deposited on a polymer film such as PET and then inserted into the adhesive film 1130, thereby becoming part of the adhesive film 1130.

[0057] The following is an embodiment in which the orthogonal projection of the heat insulating layer 130 on the laminated glass 110 avoids the signal transmission region Q1. In one embodiment, the heat insulating layer 130 can be deposited on the second surface 1112 or the third surface 1121 first, or the heat insulating layer 130 is deposited on the polymer film and then inserted into the adhesive film 1130 to become a part of the adhesive film 1130. Then, a part of the heat insulating layer 130 corresponding to the signal transmission region Q1 is removed. In another embodiment, a masking layer is first covered on the second surface 1112 or the third surface 1121 at a location corresponding to the signal transmission region Q1. Then, the heat insulating layer 130 is deposited on the second surface 1112 or the third surface 1121. Finally, the masking layer is removed. Or, a masking layer is first covered on a part of the polymer film corresponding to the signal transmission region Q1. Then, the heat insulating layer 130 is deposited on the polymer film, and then the masking layer is removed. Finally, the heat insulating layer 130 is inserted into the adhesive film 1130. In this way, the heat insulating effect of the laminated glass 110 can be maintained without affecting the transmittance of the signal transmission region Q1 of the laminated glass 110 to signals.

[0058] 1, 8, 9 and 10 together, FIG. 8 is a cross-sectional view of a layer structure taken along line AA in FIG. 1 according to another embodiment of the present application. FIG. 9 is a cross-sectional view of a layer structure taken along line AA in FIG. 1 according to another embodiment of the present application. FIG. 10 is a cross-sectional view of a layer structure taken along line AA in FIG. 1 according to another embodiment of the present application. In yet another embodiment, the heat insulating layer 130 and the adhesive film 1130 both have through holes 140 communicating with each other, and each through hole 140 is at least partially located in the signal transmission region Q1. The radio wave transmission layer 120 is provided on the third surface 1121. The heat insulating layer 130 is provided on the second surface 1112 (as shown in FIG. 8), or the heat insulating layer 130 is provided on the surface of the radio wave transmission layer 120 close to the first transparent substrate 1110 (as shown in FIG. 9), or the heat insulating layer 130 is provided in the adhesive film 1130 (as shown in FIG. 10).

[0059] In this embodiment, at least a portion of each through hole 140 is located in the signal transmission region Q1. That is, the through holes 140 are located not only in the signal transmission region Q1 but also in the non-signal transmission region Q2. The detection signal from the detector 200 is transmitted through the second transparent substrate 1120, the radio wave transmission layer 120, the through holes 140, and the first transparent substrate 1110 without passing through the adhesive film 1130 and the heat insulating layer 130. This avoids blocking of the detection signal by the adhesive film 1130 and the heat insulating layer 130.

[0060] In this embodiment, the radio wave transparent layer 120 is disposed on the third surface 1121. By a method such as PVD or CVD, the radio wave transparent layer 120 having the function of high signal transmittance can be deposited on the third surface 1121, thereby increasing the transmittance of the signal transmission region Q1 to the detection signal.

[0061] In this embodiment, the heat insulating layer 130 is provided on the second surface 1112 (as shown in FIG. 8), or the heat insulating layer 130 is provided on the surface of the radio wave transparent layer 120 close to the first transparent substrate 1110 (as shown in FIG. 9), or the heat insulating layer 130 is provided in the adhesive film 1130 (as shown in FIG. 10). The heat insulating layer 130 can be directly deposited on the second surface 1112 or on the surface of the radio wave transparent layer 120 close to the first transparent substrate 1110 by methods such as PVD, CVD or sol-gel spraying. Or, the heat insulating layer 130 is deposited on a polymer film such as PET and then inserted into the adhesive film 1130, thereby becoming a part of the adhesive film 1130.

[0062] The following is an embodiment in which the orthogonal projection of the heat insulating layer 130 on the laminated glass 110 avoids the signal transmission region Q1. In one embodiment, the heat insulating layer 130 can be first deposited on the second surface 1112 or on the surface of the radio wave transmission layer 120 close to the first transparent substrate 1110, or the heat insulating layer 130 is deposited on a polymer film and then inserted into the adhesive film 1130 to become a part of the adhesive film 1130. Then, a part of the heat insulating layer 130 corresponding to the signal transmission region Q1 is removed. In another embodiment, a masking layer is first covered on the second surface 1112 or on the surface of the radio wave transmission layer 120 close to the first transparent substrate 1110, at a location corresponding to the signal transmission region Q1. Then, the heat insulating layer 130 is deposited on the second surface 1112 or on the surface of the radio wave transmission layer 120 close to the first transparent substrate 1110. Finally, the masking layer is removed. Or, a masking layer is first covered on a part of the polymer film corresponding to the signal transmission region Q1. Next, the heat insulating layer 130 is deposited on the polymer film, and then the masking layer is removed. Finally, the heat insulating layer 130 is inserted into the adhesive film 1130. In this way, the heat insulating effect of the laminated glass 110 can be maintained without affecting the transmittance of the signal transmission region Q1 to the detection signal.

[0063] 11, 12, 13 and 14, FIG. 11 is a schematic diagram showing a laminated glass assembly according to another embodiment of the present application. FIG. 12 is a cross-sectional view along line BB in FIG. 11 according to an embodiment of the present application. FIG. 13 is a schematic diagram showing a laminated glass assembly according to another embodiment of the present application. FIG. 14 is a cross-sectional view along line CC in FIG. 13 according to an embodiment of the present application. In one embodiment, a plurality of through holes 140 are provided in the inner region (as shown in FIG. 11 and FIG. 12) or the edge (as shown in FIG. 13 and FIG. 14) of the laminated glass assembly 100. The area S of the orthogonal projection on the second surface 1112 of the signal transmission region Q1 is S≧50mm*80mm.

[0064] In this embodiment, according to actual needs, a number of through holes 140 can be provided in the inner region or edge of the laminated glass assembly 100. The signal transmission region Q1 is provided corresponding to the through holes 140, and the area S of the orthogonal projection of the signal transmission region Q1 on the second surface 1112 is S≧50mm*80mm. Usually, the detector 200 needs to be placed in the signal transmission region Q1 and is used to transmit and receive the detection signal. The area S of the orthogonal projection of the signal transmission region Q1 on the second surface 1112 being 50mm*80mm or more can ensure a sufficient detection surface for the transmission of the signal in the signal transmission region Q1.

[0065] 15 and 16, FIG. 15 is a cross-sectional view of a layer structure in which a filler according to an embodiment of the present application is additionally provided in FIG. 5. FIG. 16 is a cross-sectional view of a layer structure in which a filler according to an embodiment of the present application is additionally provided in FIG. 8. In one embodiment, the through-hole 140 of the adhesive film 1130 is filled with a filler 150, and the filler 150 has a blocking rate of 2% or less for a detection signal that is vertically incident, and the filler 150 has a blocking rate of 5% or less for a detection signal that is incident at an incident angle of 55° to 70°. This ensures high transmittance for the detection signal in the signal transmission region Q1.

[0066] In this embodiment, the material of the filler 150 may be the same as or different from the material of the adhesive film 1130. Preferably, the blocking rate of the filler 150 for detection signals incident at an incident angle of 55° to 70° is smaller than the blocking rate of the adhesive film 1130 for detection signals incident at an incident angle of 55° to 70°. This improves the strength of the entire laminated glass and at the same time reduces the effect of the filler 150 on the transmittance of the detection signal in the signal transmission region Q1 as much as possible.

[0067] 17, 18 and 19, FIG. 17 is a schematic diagram showing a signal transmission system according to one embodiment of the present application. FIG. 18 is a schematic diagram showing a signal transmission system according to another embodiment of the present application. FIG. 19 is a schematic diagram showing a signal transmission system according to yet another embodiment of the present application. The present application further provides a signal transmission system 10. The signal transmission system 10 includes a detector 200 and the above-mentioned laminated glass assembly 100. The detector 200 is provided corresponding to the signal transmission region Q1. A detection signal transmitted and / or received by the detector 200 passes through the signal transmission region Q1. The wavelength of the detection signal is in the range of 380 nm to 1650 nm or 3 mm to 30 mm. The detection signal is incident on the signal transmission region Q1 at an incident angle of 55° to 70°.

[0068] In one embodiment, when the second transparent substrate 1120, the adhesive film 1130 and the heat insulating layer 130 all have through holes 140 communicating with each other, the detector 200 is provided in at least one of the through holes 140 (as shown in FIG. 17), and the distance d between the detector 200 and the second surface 1112 is in the range of 0 mm≦d≦1 mm. Or, the detector 200 is provided on one side of the second transparent substrate 1120 away from the first transparent substrate 1110 (as shown in FIG. 18), and the distance d between the detector 200 and the fourth surface 1122 is in the range of 0 mm≦d≦25 mm.

[0069] In another embodiment, when only the adhesive film 1130 and the insulating layer 130 both have through holes 140 communicating with each other, the detector 200 is provided on one side of the second transparent substrate 1120 away from the first transparent substrate 1110 (as shown in FIG. 19), and the distance d between the detector 200 and the fourth surface 1122 is in the range of 0 mm≦d≦25 mm.

[0070] 20, 21 and 22, FIG. 20 is a schematic diagram showing a vehicle according to one embodiment of the present application. FIG. 21 is a schematic diagram showing a vehicle according to another embodiment of the present application. FIG. 22 is a schematic diagram showing a vehicle according to yet another embodiment of the present application. The present application further provides a vehicle 1. The vehicle 1 includes a vehicle body 20 and the above-mentioned signal transmission system 10, and the signal transmission system 10 is mounted on the vehicle body 20. The signal transmission system 10 can be mounted on the front (as shown in FIG. 20), side (as shown in FIG. 21), or rear (as shown in FIG. 22) of the vehicle body 20, but is not limited thereto. When the signal transmission system 10 is mounted on the front of the vehicle body 20, the laminated glass assembly 100 can be a windshield, and the laminated glass assembly 100 is mounted at an angle α in the range of 55°≦α≦70°.

[0071] In this embodiment, the vehicle 1 may be, but is not limited to, a sedan, a multi-purpose vehicle (MPV), a sport / suburban utility vehicle (SUV), an off-road vehicle (ORV), a pickup truck, a minivan, a passenger car, a truck, etc. The vehicle 1 equipped with one or more signal transmission systems 10 has functions such as imaging, ranging, and positioning, so that the vehicle 1 can detect obstacles in the vicinity of the vehicle while stopped or traveling.

[0072] Although the embodiments of the present application have been shown and described above, the above embodiments are illustrative and should not be understood 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 embellishments should also fall within the protection scope of the present application. [Explanation of symbols]

[0073] 1. Vehicle 10. Signal transmission system 20…Body 100...Laminated glass assembly 200…detector 110...Laminated glass 120...Radio wave transmission layer 130…Thermal insulation layer 140...Through hole 150…Filling material Q1: Signal transmission area Q2: Non-signal transmission area 1110...First transparent substrate 1120…Second transparent substrate 1130...Adhesive film 1111...1st surface 1112…Second surface 1121…Third surface 1122…4th surface

Claims

1. 1. A laminated glass assembly comprising: The laminated glass assembly includes a laminated glass, a radio wave transparent layer, and a heat insulating layer, The laminated glass has a signal-transmitting region and a non-signal-transmitting region, the radio wave transmission layer is placed on the laminated glass, and an orthogonal projection of the radio wave transmission layer on the laminated glass covers the signal transmission area and the non-signal transmission area; The heat insulating layer is placed on the laminated glass, and an orthogonal projection of the heat insulating layer on the laminated glass covers the non-signal transmitting area and avoids the signal transmitting area. A laminated glass assembly comprising:

2. 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 opposed to the first surface; the second transparent substrate has a third surface and a fourth surface opposed to the third surface, the third surface being closer to the second surface than the fourth surface; The adhesive film is used to adhere the first transparent substrate and the second transparent substrate to each other.

2. The laminated glass assembly of claim 1.

3. the second transparent substrate, the adhesive film and the heat insulating layer all have through holes communicating with each other, and at least a portion of each of the through holes is located in the signal transmission region; the radio wave transmission layer is provided on the second surface; the heat insulating layer is provided on a surface of the radio wave transmission layer close to the second transparent substrate, or the heat insulating layer is provided on the third surface; or the heat insulating layer is provided within the adhesive film; 3. The laminated glass assembly of claim 2.

4. The heat insulating layer and the adhesive film each have a through hole communicating with each other, and at least a portion of each of the through holes is located in the signal transmission area, the radio wave transparent layer is provided on the fourth surface, the heat insulating layer is provided on the second surface, or the heat insulating layer is provided on the third surface, or the heat insulating layer is provided within the adhesive film.

3. The laminated glass assembly of claim 2.

5. The heat insulating layer and the adhesive film each have a through hole communicating with each other, and at least a portion of each of the through holes is located in the signal transmission region; the radio wave transparent layer is provided on the third surface, and the heat insulating layer is provided on the second surface, or the heat insulating layer is provided on a surface of the radio wave transparent layer close to the first transparent substrate, or the heat insulating layer is provided within the adhesive film.

3. The laminated glass assembly of claim 2.

6. The through holes are provided in an internal region or an edge portion of the laminated glass assembly, and an area S of the signal transmission region on the second surface of the laminated glass assembly is S≧50 mm*80 mm. The laminated glass assembly according to any one of claims 3 to 5.

7. The through holes of the adhesive film are filled with a filler, and the filler has a blocking rate of 2% or less for a detection signal that is perpendicularly incident and has a wavelength in the range of 380 nm to 1650 nm or 3 mm to 30 mm, and the filler has a blocking rate of 5% or less for a detection signal that is incident at an incident angle of 55° to 70° and has a wavelength in the range of 380 nm to 1650 nm or 3 mm to 30 mm.

6. A laminated glass assembly according to claim 4 or 5.

8. an orthogonal projection of the radio wave transmission layer on the laminated glass occupies 70% or more of an area of ​​the laminated glass, an orthogonal projection of the heat insulating layer on the laminated glass occupies 70% or more of an area of ​​the laminated glass, and an overlapping area between the orthogonal projection of the radio wave transmission layer on the laminated glass and the orthogonal projection of the heat insulating layer on the laminated glass occupies 80% or more of an area of ​​the orthogonal projection of the heat insulating layer on the laminated glass.

2. The laminated glass assembly of claim 1.

9. The overlapping area between the radio wave transmission layer and the heat insulating layer has a total solar energy transmittance of 53% or less, and the signal transmission area has a transmittance of 85% or more for a detection signal having a wavelength in the range of 380 nm to 1650 nm or 3 mm to 30 mm and incident at an incident angle of 55° to 70°.

9. The laminated glass assembly of claim 8.

10. the radio wave transmission layer has at least one laminate structure including a high refractive index layer and a low refractive index layer, the high refractive index layer has a refractive index of 1.9 to 2.6, and the low refractive index layer has a refractive index of 1.3 to 1.8, and the heat insulating layer includes at least one of a metallic silver layer, a silver alloy layer, or a transparent conductive oxide layer; 2. The laminated glass assembly of claim 1.

11. The transmittance of the signal transmission region with the radio wave transmission layer for a detection signal incident at an incident angle of 55° to 70° is at least 3% greater than the transmittance of the signal transmission region without the radio wave transmission layer for the detection signal incident at an incident angle of 55° to 70°.

2. The laminated glass assembly of claim 1.

12. the second transparent substrate is tinted glass; 4. The laminated glass assembly of claim 3.

13. The adhesive film is an adhesive film having heat insulating properties. The laminated glass assembly according to any one of claims 3 to 5.

14. 1. A signal transmission system, comprising: The signal transmission system includes a detector and the laminated glass assembly according to any one of claims 1 to 13, the detector being provided corresponding to the signal transmission area, a detection signal transmitted and / or received by the detector is transmitted through the signal transmission area, a wavelength of the detection signal is in a range of 380 nm to 1650 nm or 3 mm to 30 mm, and the detection signal is incident on the signal transmission area at an incident angle of 55° to 70°. A signal transmission system comprising:

15. When the second transparent substrate, the adhesive film, and the heat insulating layer all have through holes communicating with each other, the detector is provided in at least one of the through holes, and a distance d between the detector and the second surface is in the range of 0 mm≦d≦1 mm; or the detector is provided on one side of the second transparent substrate away from the first transparent substrate, and a distance d between the detector and the fourth surface is in the range of 0 mm≦d≦25 mm; When only the adhesive film and the heat insulating layer both have through holes communicating with each other, the detector is provided on one side of the second transparent substrate away from the first transparent substrate, and the distance d between the detector and the fourth surface is in the range of 0 mm≦d≦25 mm; 15. A signal transmission system according to claim 14.

16. the detection signal is circularly polarized light, P polarized light, or a mixture of P polarized light and S polarized light, and a ratio of the P polarized light in the mixture is 50% or more; 15. A signal transmission system according to claim 14.

17. The detector is a visible light camera, a near-infrared camera, a laser radar, or a millimeter wave radar; 15. A signal transmission system according to claim 14.

18. A vehicle, The vehicle includes a vehicle body and the signal transmission system according to any one of claims 14 to 17, and the signal transmission system is mounted on the vehicle body. A vehicle characterized by:

Images