Laminated glass, head-up display system and vehicle

Abstract

The invention provides laminated glass, a head-up display system and a vehicle, the laminated glass is provided with a dimming area, the laminated glass comprises a first glass plate, a dimming layer and a second glass plate, the first glass plate is provided with a first surface and a second surface, the second glass plate is provided with a third surface and a fourth surface, the dimming layer is arranged between the second surface and the third surface, and the dimming layer is arranged in the dimming area; when the dimming layer is in a power-off state, the laminated glass is in a transparent state, and when the dimming layer is in a power-on state, the laminated glass is in a fog state. According to the laminated glass, the head-up display system and the vehicle provided by the invention, the dimming diaphragm is added between the inner glass plate and the outer glass plate, so that the laminated glass displays a transparent state when being not electrified and displays a fog state when being electrified. Therefore, the driving visual field is not influenced, and the projection requirements of users such as a driver can be met.

Description

Technical Field

[0001] The present application belongs to the field of glass technology, and specifically relates to laminated glass, a head-up display system and a vehicle. Background Art

[0002] Vehicles can provide various information to drivers and passengers, such as vehicle information, road information, social media information, and even entertainment information. Generally, a head-up display (HUD) can be used to display image information in the shielded area of ​​the front windshield. In order to improve the display effect, the area of ​​the shielded area is usually enlarged, but this will reduce the driver's field of vision. Summary of the invention

[0003] In view of this, the first aspect of the present application provides a laminated glass, wherein the laminated glass has a dimming zone, and the laminated glass includes a first glass plate, a dimming layer, and a second glass plate, wherein the first glass plate has a first surface and a second surface, the second glass plate has a third surface and a fourth surface, the dimming layer is arranged between the second surface and the third surface, and the dimming layer is arranged in the dimming zone; when the dimming layer is in a power-off state, the laminated glass is in a transparent state, and when the dimming layer is in a power-on state, the laminated glass is in a foggy state.

[0004] The laminated glass has a visible light transmittance TL, when the dimming layer is in a power-off state, TL≥70%, and when the dimming layer is in a power-on state, TL<70%.

[0005] The laminated glass has a haze H, when the dimming layer is in a power-off state, H≤10%, and when the dimming layer is in a power-on state, H≥90%.

[0006] Wherein, the laminated glass has a total solar transmittance TTS, and when the dimming layer is in a power-off state, the total solar transmittance TTS is 50%-65%.

[0007] Wherein, the laminated glass has an infrared transmittance TIR, and when the dimming layer is in a power-off state, the infrared transmittance TIR is 20%-35%.

[0008] Wherein, the laminated glass has a visible light reflectivity RL, and when the dimming layer is in a power-off state, the visible light reflectivity RL is 3%-15%.

[0009] Wherein, the laminated glass has a B area, at least part of the dimming zone is located below the B area, the dimming zone includes at least one sub-dimming zone, and when the dimming zone includes multiple sub-dimming zones, the multiple sub-dimming zones can be independently regulated so that when the dimming layer located in each sub-dimming zone is in a power-off state, the corresponding sub-dimming zone is in a transparent state, and when the dimming layer located in each sub-dimming zone is in a power-on state, the corresponding sub-dimming zone is in a foggy state.

[0010] The laminated glass has an A region located within the B region, the dimming zone includes a first sub-dimming zone and a second sub-dimming zone, the first sub-dimming zone and the second sub-dimming zone are adjacently arranged in a horizontal direction, and at least part of the first sub-dimming zone is located below the A region.

[0011] The second sub-dimming zone is arranged closer to the top of the laminated glass than the first sub-dimming zone.

[0012] The dimming zone includes a first sub-dimming zone and a second sub-dimming zone, and the first sub-dimming zone and the second sub-dimming zone are arranged in sequence from the bottom of the laminated glass to the top of the laminated glass.

[0013] The laminated glass has a light-transmitting area and a shielding area arranged at the outer periphery of the light-transmitting area, the dimming area is partially arranged in the light-transmitting area, the rest is arranged in the shielding area, and at least part of the edge of the dimming area is arranged in the shielding area.

[0014] The laminated glass further comprises a first adhesive layer and a second adhesive layer, wherein the first adhesive layer connects the second surface and the dimming layer, and the second adhesive layer connects the dimming layer and the third surface.

[0015] Wherein, the thickness of the first bonding layer is greater than the thickness of the second bonding layer.

[0016] Wherein, the laminated glass further includes a third adhesive layer, the third adhesive layer connects the first adhesive layer and the second adhesive layer, and the third adhesive layer is arranged in the same layer as the dimming layer, and the third adhesive layer is arranged outside the dimming area.

[0017] A second aspect of the present application provides a head-up display system, which includes a projection device and the laminated glass provided in the first aspect of the present application, wherein the projection device is used to project projection light that forms an image onto a dimming area of ​​the laminated glass.

[0018] A third aspect of the present application provides a vehicle, comprising a vehicle body, and a head-up display system as provided in the second aspect of the present application, wherein the head-up display system is disposed on the vehicle body.

[0019] The laminated glass, head-up display system and vehicle provided by the present application are provided with a dimming layer between the first glass plate and the second glass plate, and the dimming layer can be used to adjust the state of the dimming zone in the laminated glass. When the dimming layer in the related art is in a power-off state, the laminated glass is in a foggy state, and when the dimming layer is in a power-on state, the laminated glass is in a transparent state. In this way, when the driver is using the vehicle, if the dimming layer is in a power-off state, the dimming zone of the laminated glass is always in a foggy state, which will reduce the driver's field of vision and cause certain safety hazards. However, if it needs to be turned into a transparent state, it needs to be powered on, which will waste electricity and reduce the vehicle's endurance performance.

[0020] Based on this, the present application can make the laminated glass in a transparent state when the dimming layer is in a power-off state, and in a foggy state when the dimming layer is in a power-on state. In this way, when the dimming layer is not normally powered on, the laminated glass in a transparent state has the same characteristics as traditional glass, does not affect the driving field of view, meets driving requirements, and does not affect driving. When the driver or other users need projection, the dimming layer can be powered on to switch the laminated glass to a foggy state to meet the needs of projection display.

[0021] In summary, the laminated glass provided in the present application can both not affect the driving field of vision and meet the projection needs of drivers and other users. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] In order to more clearly illustrate the technical solutions in the implementation modes of the present application, the drawings required for use in the implementation modes of the present application will be described below.

[0023] Figure 1 It is a schematic cross-sectional view of a laminated glass in one embodiment of the present application.

[0024] Figure 2 Schematic diagram of laminated glass when the dimming layer is in a power-off state in one embodiment of the present application.

[0025] Figure 3 It is a schematic diagram of laminated glass when the dimming layer is in a powered-on state in one embodiment of the present application.

[0026] Figure 4 This is a schematic diagram of laminated glass when the dimming layer is in a powered-on state in another embodiment of the present application.

[0027] Figure 5 This is a schematic diagram of laminated glass when the dimming layer is in a powered-on state in another embodiment of the present application.

[0028] Figure 6 This is a schematic diagram of laminated glass when the dimming layer is in a powered-on state in yet another embodiment of the present application.

[0029] Figure 7 It is a schematic cross-sectional view of a laminated glass in another embodiment of the present application.

[0030] Figure 8 It is a schematic cross-sectional view of laminated glass in another embodiment of the present application.

[0031] Fig. 9 Schematic diagram of a head-up display system in one embodiment of the present application.

[0032] Fig.10 It is a schematic diagram of a vehicle in one embodiment of the present application.

[0033] Description of labels:

[0034] Laminated glass-1, dimming zone-1a, sub-dimming zone-10a, first sub-dimming zone-11a, second sub-dimming zone-12a, main driving zone-1b, co-pilot zone-1c, light-transmitting zone-1d, shielding zone-1e, area A-1A, area B-1B, head-up display system-2, vehicle-3, first glass plate-10, first surface-101, second surface-102, dimming layer-20, second glass plate-30, third surface-301, fourth surface-302, first bonding layer-40, second bonding layer-50, third bonding layer-60, projection device-70, vehicle body-80. DETAILED DESCRIPTION

[0035] The following are preferred implementations of the present application. It should be noted that, for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the principles of the present application, and these improvements and modifications are also considered to be within the scope of protection of the present application.

[0036] Before introducing the technical solution of the present application, the technical problems in the related technology are introduced in detail.

[0037] The vehicle can provide various information to the driver or other users such as the co-pilot when they are driving, such as vehicle information, road information, social media information and even entertainment information. This is generally achieved by using instrument panels, central control screens, co-pilot display screens, etc. and their combinations, but in this way the driver needs to lower his head to observe, and the human eye will temporarily leave the road surface, which will bring hidden dangers to driving safety. At present, the image information can be displayed on the front windshield using a head-up display (HUD) through projection rear display technology. For example, a panoramic head-up display can be used without projecting the image information onto the transparent area of ​​the front windshield, but this will result in a lower contrast and reduce the display effect.

[0038] Others use printing ink or dark dimming polyurethane film as the display substrate for the projection area, which can improve the contrast of the display screen and the display effect. In order to increase the amount of displayed content, the size of the display screen, etc., the area of ​​the black printed coating or dark polyurethane film will be increased to increase the entire black projection harness area. The projector reflects the driver's important information to the special black printed coating area at the lower edge of the windshield with extremely high brightness, so that the clear image produced at the bottom spans the entire windshield, with the advantages of high clarity, high contrast, and visualization. And the head-up display is installed in the lower edge area of ​​the front windshield, and a new driving experience is obtained by displaying it directly in the driver's field of vision. It is even possible to achieve an innovative display method that spans the entire cockpit by setting up multiple small-volume, cost-effective display screens.

[0039] From the above content, it can be found that users hope to increase the coverage area of ​​the black projection area or dimming film at the bottom as much as possible, but because the regulations require that the visible light transmittance of the front windshield visible area is greater than 70%, the coverage area of ​​the black projection area or dimming film at the bottom cannot be increased as much as possible, which will affect the viewing experience of the projection display. In addition, when the area of ​​the ink and the dimming film increases to the maximum limit allowed by the regulations, the existing ink is opaque, and the existing dimming film has a higher haze when it is not powered on and a lower haze when powered on. As a result, the ink or dimming film will reduce the driver's field of vision when the driver is using the vehicle normally, causing certain safety hazards. However, if it needs to be turned into a transparent state, it needs to be powered on, which will waste electricity and reduce the vehicle's endurance performance.

[0040] In view of this, in order to solve the above problems, this application provides a laminated glass, please refer to Figure 1-Figure 3 , Figure 1 It is a schematic cross-sectional view of a laminated glass in one embodiment of the present application. Figure 2 Schematic diagram of laminated glass when the dimming layer is in a power-off state in one embodiment of the present application. Figure 3 The schematic diagram of the laminated glass when the dimming layer is in the power-on state in one embodiment of the present application. The laminated glass 1 provided in this embodiment has a dimming area 1a, the laminated glass 1 includes a first glass plate 10, a dimming layer 20, and a second glass plate 30, the first glass plate 10 has a first surface 101 and a second surface 102, the second glass plate 30 has a third surface 301 and a fourth surface 302, the dimming layer 20 is arranged between the second surface 102 and the third surface 301, and the dimming layer 20 is arranged in the dimming area 1a; when the dimming layer 20 is in the power-off state, the laminated glass 1 is in a transparent state, and when the dimming layer 20 is in the power-on state, the laminated glass 1 is in a foggy state.

[0041] The laminated glass 1 is a multi-layer composite glass component composed of multiple layers of glass sheets and other components, so that the laminated glass 1 has many additional properties in addition to the properties of normal glass sheets. The laminated glass 1 can be applied to the fields of vehicles 3, buildings, electronic equipment, etc., and this embodiment and the following only schematically illustrate the application of the laminated glass 1 to the vehicle 3.

[0042] The laminated glass 1 is composed of two glass plates and a dimming layer 20 sandwiched between the two glass plates. The first glass plate 10 can be used as the outer glass plate of the laminated glass 1 when applied to the vehicle 3, and is used for the support structure of the main windshield. Provide vision and appearance. The second glass plate 30 can be used as the inner glass plate of the laminated glass 1, which is used for the support structure of the main windshield and is also used to provide connection with the surrounding parts inside the vehicle. In other words, the second glass plate 30 will be closer to the driver than the first glass plate 10. The first glass plate 10 has a first surface 101 and a second surface 102 arranged opposite to each other, and the first surface 101 is used to contact the environment outside the vehicle. The second glass plate 30 has a third surface 301 and a fourth surface 302 arranged opposite to each other, and the fourth surface 302 is in contact with the environment inside the vehicle. Therefore, the arrangement order of the above surfaces from the outside of the vehicle to the inside of the vehicle is the first surface 101, the second surface 102, the third surface 301, and the fourth surface 302.

[0043] Optionally, the first glass plate 10 is transparent glass or tinted glass, the thickness of the first glass plate 10 is 0.7 mm-4 mm, and the visible light transmittance of the first glass plate 10 is greater than or equal to 80%. The second glass plate 30 is transparent glass or tinted glass, the thickness of the second glass plate 30 is 0.7 mm-4 mm, and the visible light transmittance of the second glass plate 30 is greater than or equal to 80%. The total iron content (in terms of Fe2O3) of the transparent glass is less than or equal to 0.1%, even less than or equal to 0.05%, and further less than or equal to 0.01%, and the visible light transmittance of the transparent glass is 80%-95%; the total iron content (in terms of Fe2O3) of the tinted glass is 0.1% to 0.8%, preferably 0.1% to 0.5%, and the visible light transmittance of the tinted glass is 80%-90%. For example, the first glass plate 10 can be a transparent glass with a thickness of 2.1 mm and a visible light transmittance of 89%, and the second glass plate 30 can be a green glass with a thickness of 1.6 mm and a visible light transmittance of 83%, or a green glass with a thickness of 2.1 mm and a visible light transmittance of 80%.

[0044] The dimming layer 20 is a film with a dimming function. The dimming layer 20 can be a polymer dispersed liquid crystal film (PDLC), a suspended particle film (SPD), an electrochromic film (EC), a dye liquid crystal film (LC), etc. In this embodiment and the following, the dimming layer 20 is only schematically described as PDLC. The dimming layer 20 can be sandwiched between the first glass plate 10 and the second glass plate 30. Specifically, the dimming layer 20 can be arranged between the second surface 102 and the third surface 301. For example, the dimming layer 20 can be arranged on the second surface 102, or the dimming layer 20 can be arranged on the third surface 301, or the dimming layer 20 can be arranged on both the second surface 102 and the third surface 301, or the dimming layer 20 and the second surface 102 and the third surface 301 are all arranged with gaps.

[0045] Since the dimming layer 20 has the function of adjusting light, the laminated glass 1 has a dimming area 1a that can dim the light, and the dimming layer 20 is arranged in the dimming area 1a. In other words, the area where the dimming layer 20 is located is the dimming area 1a, and the subsequent projection device 70 such as a projector can emit projection light toward the dimming layer 20 in the dimming area 1a, and display various images in the dimming area 1a for users to watch. For example, the dimming area 1a can display the driving information of the vehicle 3, various patterns or play videos, etc., which can be used in various scenes such as welcoming guests, creating atmosphere, watching movies and working. Optionally, it is used to display driving parameters, including vehicle speed, engine speed, fuel consumption, tire pressure, warning information, mileage, etc., and can also be used to display weather temperature, entertainment information, and can also be used for dynamic navigation, night vision, real-life maps, etc.

[0046] The two ends of the dimming layer 20 are usually connected to wires to apply voltage to the two ends of the dimming layer 20, thereby changing the position arrangement of the materials inside the dimming layer 20, and then changing the path of the light passing through the dimming layer 20, and finally changing the state of the dimming layer 20. For example, the dimming layer 20 usually has a transparent state and a foggy state, wherein the transparent state means that the light can pass normally, and the dimming layer 20 is consistent with a normal glass plate and does not affect the transmission of light. The foggy state means that the dimming layer 20 hinders the propagation of light, so that the object behind the dimming layer 20 cannot be seen clearly through the dimming layer 20. When the dimming layer 20 is in a transparent state and a foggy state, the dimming area 1a of the laminated glass 1 also has a transparent state and a foggy state accordingly, and the laminated glass 1 as a whole has a transparent state and a foggy state. It is worth noting that whether the dimming layer 20 is in a transparent state or a foggy state, the projection device 70 can emit projection light toward the dimming area 1a and display an image, but when the dimming layer 20 is in a foggy state, it can block external light from entering the human eye to improve the contrast of the displayed picture and improve the display effect.

[0047] In the related art, the dimming layer 20 can be a positive PDLC film, which is characterized in that when no voltage is applied to both ends of the dimming layer 20, the dimming layer 20 is in a power-off state, and the laminated glass 1 is in a foggy state; when different voltages are applied to both ends of the dimming layer 20, the dimming layer 20 is in a power-on state, and the laminated glass 1 is in a transparent state. In this way, when the driver is using the vehicle 3, if the dimming layer 20 is in a power-off state, the dimming area 1a of the laminated glass 1 is always in a foggy state, which will reduce the driver's field of vision and cause certain safety hazards. However, if it needs to be turned into a transparent state, it needs to be powered on, which will waste electric energy and reduce the endurance performance of the vehicle 3.

[0048] Based on this, the present embodiment can make the laminated glass 1 in a transparent state when the dimming layer 20 is in a power-off state, and in a foggy state when the dimming layer 20 is in a power-on state. Figure 2 As shown, when the dimming layer 20 is not powered normally, the laminated glass 1 is in a transparent state and has the same characteristics as traditional glass, which does not affect the driving vision on the basis of meeting the regulations, meets the driving requirements, and does not affect driving. Figure 3 As shown, when the driver or other users need projection, the dimming layer 20 can be energized to switch the laminated glass 1 to the foggy state to meet the needs of projection display, such as providing the driver with the driving information required, satisfying the entertainment needs of the front passenger while driving or the leisure and entertainment projection display when parking, and even providing privacy protection through the foggy state.

[0049] In summary, this embodiment adds a dimming film to the inner and outer glass plates to achieve a transparent state when the laminated glass 1 is not powered on and a foggy state when powered on. This can not only not affect the driving field of view, but also meet the projection needs of users such as drivers. Optionally, the dimming layer 20 provided in this embodiment includes but is not limited to a reverse PDLC film, so the above content can also be understood as this embodiment uses a reverse PDLC film to replace the existing forward PDLC film.

[0050] In this embodiment, the laminated glass 1 has a visible light transmittance TL and a haze H. When the dimming layer 20 is in a power-off state, TL≥70% and H≤10%. When the dimming layer 20 is in a power-on state, TL<70% and H≥90%.

[0051] The laminated glass 1 has a variety of properties, such as visible light transmittance TL and haze H, where TL refers to the ability of visible light to pass through the laminated glass 1. The higher the value, the stronger the ability of light to penetrate the medium and the clearer the vision. H refers to the percentage of the transmitted light intensity that deviates from the incident light by more than 2.5° to the total transmitted light intensity. The greater the haze, the lower the gloss and transparency of the film, especially the imaging degree. Due to the presence of the dimming layer 20, the visible light transmittance TL and haze H of the laminated glass 1 have different sizes in different states. In this embodiment, when the dimming layer 20 is in the power-off state, TL≥70% and H≤10%, thereby ensuring that the laminated glass 1 has a higher transmittance and lower haze, making the laminated glass 1 have a better transparent effect and the same characteristics as a normal glass plate, improving the driving field of vision and meeting driving requirements. When the user needs, the dimming layer 20 can be powered on, at this time TL<70% and H≥90%, ensuring that the laminated glass 1 has a lower transmittance and higher haze, so as to achieve projection display and provide privacy and other needs.

[0052] Optionally, when the dimming layer 20 is in the power-off state, TL≥70%, H≤6%. When the dimming layer 20 is in the power-on state, TL<70%, H≥96%. Further optionally, when the dimming layer 20 is in the power-off state, TL≥70% and TL≤80%, H≥5% and H≤6%, when the dimming layer 20 is in the power-on state, TL≥60% and TL<70%, H≥96% and H≤99%. When the dimming layer 20 is in the power-off state, TL can be specifically exemplified as 70%, 71%, 72%, 73%, 74%, 75%, 76%, 77%, 78%, 79%, 80%. H can be specifically exemplified as 5%, 5.1%, 5.2%, 5.3%, 5.4%, 5.5%, 5.6%, 5.7%, 5.8%, 5.9%, 6%. When the dimming layer 20 is in the power-on state, TL can be 60%, 61%, 62%, 63%, 64%, 65%, 66%, 67%, 68%, 69%, and H can be 96%, 96.5%, 97%, 97.5%, 98%, 98.5%, 99%.

[0053] In this embodiment, the laminated glass 1 has a total solar transmittance TTS, and when the dimming layer 20 is in a power-off state, the total solar transmittance TTS is 50%-65%.

[0054] In addition to the above-mentioned properties, the laminated glass 1 includes the total solar transmittance TTS, which is a key indicator for evaluating the thermal insulation performance of the laminated glass 1. It covers the sum of the heat energy directly transmitted and indirectly converted, thereby more comprehensively reflecting the thermal insulation effect of the laminated glass 1. Laminated glass 1 with a lower TTS value generally has better thermal insulation performance because they can effectively reduce the part of the heat energy in the solar energy that passes through the glass, thereby reducing the indoor temperature and energy consumption. This embodiment can make the total solar transmittance TTS of 50%-65% when the dimming layer 20 is in the power-off state, so that the addition of the dimming layer 20 can not only change the state of the laminated glass 1, but also reduce the TTS and thus improve the thermal insulation performance of the laminated glass 1.

[0055] Optionally, when the dimming layer 20 is in a power-off state, the total solar transmittance TTS is 55%-60%. Specifically, TTS may be 55%, 56%, 57%, 58%, 59%, or 60%.

[0056] In this embodiment, the laminated glass 1 has a solar energy direct transmittance TE, and the solar energy direct transmittance TE is 40%-55%.

[0057] In addition to the above-mentioned properties, the laminated glass 1 includes a direct solar transmittance TE, which refers to the ratio of the intensity of solar energy directly transmitted through the glass to the intensity of incident solar energy within the solar spectrum (300nm to 2500nm). A lower TE means that the laminated glass 1 generally has better thermal insulation performance. In this embodiment, the direct solar transmittance TE can be 40%-55% when the dimming layer 20 is in the power-off state, so that the addition of the dimming layer 20 can not only change the state of the laminated glass 1, but also reduce TE and thus improve the thermal insulation performance of the laminated glass 1.

[0058] Optionally, the solar energy direct transmittance TE is 45%-50%. TE can be specifically exemplified as 45%, 46%, 47%, 48%, 49%, and 50%.

[0059] In this embodiment, the laminated glass 1 has an infrared transmittance TIR, and when the dimming layer 20 is in a power-off state, the infrared transmittance TIR is 20%-35%.

[0060] In addition to the above-mentioned properties, the laminated glass 1 includes infrared transmittance TIR. TIR refers to the ability of infrared rays to penetrate a certain material under certain conditions, usually expressed as a percentage. TIR is an important physical parameter that determines the degree to which a material allows infrared rays to penetrate. A lower TIR means that the laminated glass 1 generally has better thermal insulation performance. In this embodiment, the infrared transmittance TIR of the dimming layer 20 is 20%-35% when the dimming layer 20 is in the off state, so that the addition of the dimming layer 20 can not only change the state of the laminated glass 1, but also reduce TIR, thereby improving the thermal insulation performance of the laminated glass 1.

[0061] Optionally, when the dimming layer 20 is in the power-off state, the infrared transmittance TIR is 25%-30%. Specifically, TIR may be 25%, 26%, 27%, 28%, 29%, or 30%.

[0062] In this embodiment, the laminated glass 1 has a visible light reflectivity RL, and when the dimming layer 20 is in a power-off state, the visible light reflectivity RL is 3%-15%.

[0063] In addition to the above-mentioned properties, the laminated glass 1 includes a visible light reflectance RL, which refers to the percentage of the light intensity reflected from the surface of an object to the incident light intensity within the visible spectrum (380 nanometers to 780 nanometers). This indicator is often used to evaluate the reflectivity of a material to visible light and is one of the important parameters for measuring the optical properties of a material. A lower RL means that it is easier for light to reach the total reflection angle and thus be reflected. In this embodiment, the visible light reflectance RL of the dimming layer 20 is 3%-15% when the dimming layer 20 is in a power-off state, so that the addition of the dimming layer 20 can not only change the state of the laminated glass 1, but also reduce RL, thereby improving the total reflection performance of the laminated glass 1, and further improving the projection effect of the projection device 70.

[0064] Optionally, when the dimming layer 20 is in the power-off state, the visible light reflectivity RL is 5%-10%, and specific examples of RL include 5%, 6%, 7%, 8%, 9%, and 10%.

[0065] Please refer to Figure 3 and Figure 4 , Figure 4This is a schematic diagram of a laminated glass when the dimming layer is in a powered-on state in another embodiment of the present application. In this embodiment, the laminated glass 1 has a B region 1B, at least part of the dimming zone 1a is located below the B region 1B, and the dimming zone 1a includes at least one sub-dimming zone 10a. When the dimming zone 1a includes a plurality of sub-dimming zones 10a, the plurality of sub-dimming zones 10a can be independently regulated, so that when the dimming layer 20 located in each of the sub-dimming zones 10a is in a powered-off state, the corresponding sub-dimming zone 10a is in a transparent state, and when the dimming layer 20 located in each of the sub-dimming zones 10a is in a powered-on state, the corresponding sub-dimming zone 10a is in a fogged state.

[0066] Generally speaking, the laminated glass 1 has a B area 1B. The B area 1B refers to the portion located in the middle area of ​​the windshield, which is mainly used for the field of view of the rearview mirror inside the vehicle to ensure a clear field of view of the rearview mirror. For the specific definition and scope of the B area 1B, please refer to relevant standard documents, such as GB9656 or ECE R43. In this embodiment, at least part of the dimming zone 1a can be located below the B area 1B, that is, at least part of the dimming zone 1a is located close to the bottom of the laminated glass 1, thereby making it easier for the driver and other users to see the display screen in the dimming zone 1a. The dimming zone 1a can be divided into at least one sub-dimming zone 10a, that is, the dimming zone 1a can have only one sub-dimming zone 10a, or the dimming zone 1a can include multiple sub-dimming zones 10a. Figure 3 As shown, when the dimming zone 1a has only one sub-dimming zone 10a, the sub-dimming zone 10a can span the bottom of the laminated glass 1 from left to right to form a through-type panoramic display effect from A-pillar to A-pillar.

[0067] When the dimming zone 1a includes multiple sub-dimming zones 10a, this embodiment enables the multiple sub-dimming zones 10a to be independently controlled, so that when the dimming layer 20 located in each of the sub-dimming zones 10a is in a power-off state, the corresponding sub-dimming zone 10a is in a transparent state, and when the dimming layer 20 located in each of the sub-dimming zones 10a is in a power-on state, the corresponding sub-dimming zone 10a is in a foggy state. In other words, each sub-dimming zone 10a receives different control information, so that each sub-dimming zone 10a can be controlled to switch between a transparent state and a foggy state independently, and each sub-dimming zone 10a does not interfere with each other, so that different sub-dimming zones 10a can achieve different functions. Figure 4 As shown, the dimming area 1a includes two sub-dimming areas 10a. In this embodiment, both sub-dimming areas 10a can be in a transparent state, or both sub-dimming areas 10a can be in a foggy state, or one sub-dimming area 10a can be in a transparent state and the other sub-dimming area 10a can be in a foggy state. The sub-dimming area 10a in a transparent state can increase the field of vision, and the sub-dimming area 10a in a foggy state can be projected in its area to display various images.

[0068] Optionally, multiple sub-dimming zones 10a may be interconnected or spaced apart. The present invention only schematically illustrates the spaced apart arrangement of multiple sub-dimming zones 10a. The spaced apart arrangement may make the multiple sub-dimming zones 10a more clearly separated, which is more conducive to distinguishing each sub-dimming zone 10a.

[0069] Please refer to Figure 5 , Figure 5 Schematic diagram of laminated glass when the dimming layer is in a powered-on state in another embodiment of the present application. In this embodiment, the laminated glass 1 has an A region 1A located in the B region 1B, the dimming area 1a includes a first sub-dimming area 11a and a second sub-dimming area 12a, the first sub-dimming area 11a and the second sub-dimming area 12a are arranged adjacent to each other in the horizontal direction, and at least a portion of the first sub-dimming area 11a is located below the A region 1A.

[0070] The laminated glass 1 also has an A region 1A in the B region 1B. The A region 1A can also be called the driver's visual area, and can also be understood as the main driving region 1b. The area adjacent to the A region 1A in the horizontal direction can be understood as the co-piloting region 1c. For the specific definition and scope of the A region 1A, reference can be made to relevant standard documents, such as GB9656 or ECE R43. When the dimming area 1a includes two sub-dimming areas 10a: a first sub-dimming area 11a and a second sub-dimming area 12a, the first sub-dimming area 11a and the second sub-dimming area 12a can be arranged adjacent to each other in the horizontal direction. In other words, the first sub-dimming area 11a and the second sub-dimming area 12a are arranged side by side.

[0071] In this embodiment, at least part of the first sub-dimming zone 11a can be located below the A area 1A, so that the first sub-dimming zone 11a corresponds to the main driving area 1b, and the second sub-dimming zone 12a is adjacent to the first sub-dimming zone 11a, so the second sub-dimming zone 12a can correspond to the co-pilot area 1c. Since the A area 1A corresponds to the driver, and the area adjacent to the A area 1A in the horizontal direction corresponds to the co-pilot, the first sub-dimming zone 11a and the second sub-dimming zone 12a can be independently regulated, and the first sub-dimming zone 11a can meet the various needs of the driver, and the second sub-dimming zone 12a can meet the various needs of the co-pilot. For example, when driving, the first sub-dimming zone 11a can be in a transparent state to increase the driver's field of vision, and the second sub-dimming zone 12a can also be in a transparent state. When the car is parked and resting, the first sub-dimming area 11a can be in a transparent state to increase the driver's field of vision, and the second sub-dimming area 12a can be in a foggy state, so that various images, such as movies, games, black screens, etc., can be displayed in the second sub-dimming area 12a to meet the needs of users to rest and entertain in the car when the car is parked, such as picking up children from school, shopping with others, and resting in a private space in the car at noon. In summary, in this embodiment, different sub-dimming areas 10a can be set for the main driving area 1b and the co-pilot area 1c to achieve zoning control to meet the different needs of the driver and the co-pilot in the two states of driving and parking.

[0072] In this embodiment, the second sub-dimming zone 12a is arranged closer to the top of the laminated glass 1 than the first sub-dimming zone 11a. In other words, the second sub-dimming zone 12a is higher than the first sub-dimming zone 11a, thereby increasing the area of ​​the second sub-dimming zone 12a to further meet the needs of the co-driver to view images or protect privacy. As for the specific height of the second sub-dimming zone 12a, this embodiment does not limit it and can be set according to actual needs.

[0073] Please refer to Figure 6 , Figure 6 Schematic diagram of laminated glass when the dimming layer is in a powered-on state in another embodiment of the present application. In this embodiment, the dimming zone 1a includes a first sub-dimming zone 11a and a second sub-dimming zone 12a, and the first sub-dimming zone 11a and the second sub-dimming zone 12a are arranged in sequence from the bottom of the laminated glass 1 to the top of the laminated glass 1.

[0074] When the dimming zone 1a includes two sub-dimming zones 10a: a first sub-dimming zone 11a and a second sub-dimming zone 12a, in this embodiment, the first sub-dimming zone 11a can be located at the lower side of the laminated glass 1, and the second sub-dimming zone 12a can be located at the upper layer of the laminated glass 1, so that the first sub-dimming zone 11a and the second sub-dimming zone 12a are arranged vertically, and the first sub-dimming zone 11a below can be called a non-viewing zone, and the second sub-dimming zone 12a above can be called a viewing zone. The first sub-dimming zone 11a and the second sub-dimming zone 12a can be independently regulated. For example, when driving, the second sub-dimming zone 12a can be kept in a transparent state to block the driver's field of vision, and the first sub-dimming zone 11a can also be in a transparent state to maximize the driver's field of vision. Or the first sub-dimming zone 11a can also be in a foggy state to display various information to the driver in the first sub-dimming zone 11a. When parking, the first sub-dimming area 11a and the second sub-dimming area 12a can be in a fog state, so that various images, such as movies, games, black screens, etc., can be displayed in the first sub-dimming area 11a and the second sub-dimming area 12a to meet the needs of users to rest and entertain in the car when parking, such as picking up children from school, shopping with others, and resting in a private space in the car at noon, etc., and can also meet the needs of large-size display areas. In summary, this embodiment can adjust the viewing area and the non-viewing area separately to meet the different needs of users in the two states of driving and parking.

[0075] In this embodiment, the dimming area 1a can avoid the area where the sensors in the vehicle 3 are located, so as to avoid the influence of the dimming area 1a in the foggy state on the light emitted or received by various sensors.

[0076] In this embodiment, the laminated glass 1 has a light-transmitting area 1d and a shielding area 1e arranged at the outer periphery of the light-transmitting area 1d, the dimming area 1a is partially arranged in the light-transmitting area 1d, and the rest is arranged in the shielding area 1e, and at least part of the edge of the dimming area 1a is arranged in the shielding area 1e.

[0077] In addition to being distinguished from the dimension of whether it has a dimming function, the laminated glass 1 can also be divided into a light-transmitting area 1d and a shielding area 1e. The shielding area 1e is arranged at the outer periphery of the light-transmitting area 1d, that is, the light-transmitting area 1d is arranged inside, and the shielding area 1e is arranged outside. The light-transmitting area 1d is an area that can transmit light to ensure the normal vision requirements of the occupants of the vehicle, and the shielding area 1e is an area that is not light-transmitting. Wires can be routed in the shielding area 1e to hide various wires, thereby improving the appearance performance of the laminated glass 1. Optionally, the material of the shielding area 1e is selected from at least one of dark ink, opaque polymer film, and dimming film.

[0078] The dark ink may be ceramic ink or ultraviolet ink, which is printed on the second surface 102, the third surface 301 and / or the fourth surface 302 by screen printing, inkjet printing or other processes, and is cured or sintered at high temperature to form a shielding layer.

[0079] The opaque polymer film may be a polymer film with body coloring, such as adding black or brown coloring components during the manufacturing process of the polymer film, etc.; it may also be a polymer film with ink, paint or pigment printed on the surface, such as printing black ink, black paint or brown pigment on the surface of the polymer film, etc. It may also be a dyed or colored polymer film, such as coloring the polymer film with black or brown dyes, etc. The material of the polymer film may be polyvinyl butyral (PVB), polyethylene terephthalate (PET), polyvinyl chloride (PVC), polycarbonate (PC), polymethyl methacrylate (PMMA), etc.

[0080] The dimming film can be a polymer dispersed liquid crystal film (PDLC), a suspended particle film (SPD), an electrochromic film (EC), a dye liquid crystal film (LC), etc. For example, the forward PDLC mentioned above is in a foggy state when the power is off, giving it a shielding effect, and is transparent when the power is on.

[0081] The dimming area 1a in this embodiment can be partially arranged in the light-transmitting area 1d, and the rest can be arranged in the shielding area 1e. In addition, in this embodiment, at least part of the edge of the dimming area 1a can be arranged in the shielding area 1e, for example, the left and right edges of the dimming area 1a and the lower edge of the dimming area 1a are all arranged in the shielding area 1e, so that the edge of the dimming area 1a is shielded by the shielding effect of the shielding area 1e. Since the periphery of the dimming area 1a needs to be sealed, there will be defects in this area. By making the shielding area 1e shield the edge of the dimming area 1a, these defects of the dimming area 1a can be shielded, thereby improving the appearance performance of the laminated glass 1.

[0082] Please refer to Figure 7 , Figure 7 Schematic diagram of a cross section of a laminated glass in another embodiment of the present application. In this embodiment, the laminated glass 1 further includes a first adhesive layer 40 and a second adhesive layer 50, the first adhesive layer 40 connects the second surface 102 and the dimming layer 20, the second adhesive layer 50 connects the dimming layer 20 and the third surface 301, and the thickness of the first adhesive layer 40 is greater than the thickness of the second adhesive layer 50.

[0083] In addition to the above components, the laminated glass 1 may further include a first adhesive layer 40 and a second adhesive layer 50, wherein the first adhesive layer 40 connects the second surface 102 and the dimming layer 20, thereby connecting the dimming layer 20 and the first glass plate 10. The second adhesive layer 50 connects the dimming layer 20 and the third surface 301, thereby connecting the dimming layer 20 and the second glass plate 30.

[0084] Wherein, no matter the first adhesive layer 40 or the second adhesive layer 50 can be a transparent thermoplastic polymer film or a colored thermoplastic polymer film, and the thickness of the adhesive layer is 0.38mm-2.28mm. For example, the thickness of the adhesive layer can be but not limited to 0.38mm, or 0.76mm, or 1.14mm, or 1.52mm, or 1.9mm, or 2.28mm, or other values ​​between 0.38mm-2.28mm. The material of the thermoplastic polymer film can be selected from at least one of polyvinyl butyral (PVB), polyurethane (PU), ethylene-vinyl acetate copolymer (EVA) and ionomer (SGP), and the present embodiment is only schematically illustrated with the materials of the first adhesive layer 40 and the second adhesive layer 50 being both PVB.

[0085] When the bonding layer is a transparent thermoplastic polymer, the visible light transmittance of the transparent thermoplastic polymer is greater than or equal to 80%. For example, the visible light transmittance of the bonding layer can be, but not limited to, 80%, 85%, 90%, 95%, etc. When the bonding layer is a colored thermoplastic polymer film, the visible light transmittance of the colored thermoplastic polymer film is greater than or equal to 80%. For example, the visible light transmittance of the bonding layer can be, but not limited to, 80%, 85%, 90%, etc. The colored thermoplastic polymer film can be selected from a gray thermoplastic polymer film, a green thermoplastic polymer film, or a blue thermoplastic polymer film. Exemplarily, the bonding layer can be a single-layer structure or a multi-layer structure, and the multi-layer structure can be exemplified by a double-layer structure, a three-layer structure, a four-layer structure, a five-layer structure, etc. The bonding layer may also have other functions, such as providing at least one colored area to serve as a shadow band to reduce the interference of sunlight to the human eye, or adding an infrared absorber to provide sun protection or heat insulation functions, or adding an ultraviolet absorber to provide ultraviolet isolation functions, or at least one layer of the multilayer structure has a higher plasticizer content to provide a sound insulation function.

[0086] In addition, in this embodiment, the thickness of the first adhesive layer 40 can be greater than the thickness of the second adhesive layer 50, thereby reducing the probability of bubbles generated when the laminated glass 1 is combined and improving the appearance performance of the laminated glass 1. Specifically, the thickness of the first adhesive layer 40 is 0.76 mm, and the thickness of the second adhesive layer 50 is 0.38 mm.

[0087] Please refer to Figure 8 , Figure 8 Schematic diagram of a cross section of a laminated glass in another embodiment of the present application. In this embodiment, the laminated glass 1 further comprises a third adhesive layer 60, the third adhesive layer 60 connects the first adhesive layer 40 and the second adhesive layer 50, and the third adhesive layer 60 is disposed in the same layer as the dimming layer 20, and the third adhesive layer 60 is disposed outside the dimming area 1a.

[0088] In addition to the first adhesive layer 40 and the second adhesive layer 50, the laminated glass 1 may also include a third adhesive layer 60. When the dimming layer 20 does not cover the entire area of ​​the laminated glass 1, that is, the dimming zone 1a is not set in the entire area of ​​the laminated glass 1, the first adhesive layer 40 and the second adhesive layer 50 in the dimming zone 1a may sandwich the dimming layer 20. However, outside the dimming zone 1a, the present embodiment may sandwich the third adhesive layer 60 between the first adhesive layer 40 and the second adhesive layer 50, that is, the third adhesive layer 60 connects the first adhesive layer 40 and the second adhesive layer 50. At this time, the third adhesive layer 60 is arranged in the same layer as the dimming layer 20 and has the same thickness. In other words, the third adhesive layer 60 is used to fill the area where the dimming layer 20 is not set to fill the inside of the laminated glass 1. The specific introduction of the third adhesive layer 60 can be referred to above, and this embodiment will not be repeated here. Specifically, the thickness of the dimming layer 20 is 0.38 mm, and the thickness of the third adhesive layer 60 is also 0.38 mm.

[0089] The present application has described various aspects of the laminated glass 1 in detail above, and then the present application has conducted various performance tests on the laminated glass 1. Specifically, three laminated glasses 1 with reverse PDLC after being laminated were taken, each with a size of 100 mm*100 mm. Under an environment with a temperature of 20.2°C and a humidity of 61.3% RH, the laminated glass 1 was kept in a power-off state, and each laminated glass 1 was subjected to TL, TE, TIR, TTS, and RL performance tests using a spectrophotometer and the ISO9050-2003 standard. The test results are shown in Table 1, wherein the RL performance test is for the inner glass plate, i.e., the second glass plate 30. Then, a haze meter (BYK) and the ISO14782 standard were used to conduct haze performance tests on each laminated glass 1 in the power-off state and the power-on state, and the test results are shown in Table 2.

[0090] Table 1 Test results of various properties of three laminated glasses using a spectrophotometer

[0091] Test items Laminated glass1 Laminated glass 2 Laminated glass 3 TL 75.05％ 74.81％ 75.23％ TE 46.52％ 46.39％ 46.59％ TIR 27.38％ 27.33％ 27.32％ TTS 58.71％ 58.52％ 58.76％ RL 8.60％ 8.84％ 8.60％

[0092] It can be found from Table 1 that after adding the dimming layer 20 to the laminated glass 1, the present application has excellent TL performance, ensuring the light transmission performance of the laminated glass 1. At the same time, TE, TIR, and TTS are relatively low, indicating that the addition of the dimming layer 20 can also improve the heat insulation performance of the laminated glass 1. In addition, RL is also relatively low, indicating that the addition of the dimming layer 20 can also improve the total reflection efficiency of the laminated glass 1, thereby improving the comprehensive performance of the laminated glass 1.

[0093] Table 2 Test results of haze performance of three laminated glasses using a haze meter

[0094] Test items Laminated glass1 Laminated glass 2 Laminated glass 3 Fog (power off) 5.13％ 5.07％ 5.30％ Fog (power on) 98.00％ 98.10％ 98.00％

[0095] It can be found from Table 2 that after the dimming layer 20 is added to the laminated glass 1, the laminated glass 1 can have a lower haze when the dimming layer 20 is in a power-off state, making the laminated glass 1 similar to ordinary glassware, so that the driver has a wide field of vision. When the dimming layer 20 is in a power-on state, the laminated glass 1 has a higher haze, so that the display image can be projected in the dimming area 1a, so that the driver and other users can clearly view the display image.

[0096] Please refer to Fig. 9 , Fig. 9 Schematic diagram of a head-up display system in one embodiment of the present application. This embodiment provides a head-up display system 2, the head-up display system 2 includes a projection device 70 and a laminated glass 1 as provided in the above embodiment of the present application, the projection device 70 is used to project projection light forming an image to the dimming area 1a of the laminated glass 1.

[0097] The projection device 70 can emit projection light, and the projection light is emitted toward the laminated glass 1. The projection light can be reflected at the first glass plate 10 and / or the second glass plate 30 located in the dimming area 1a, so as to form various images in the dimming area 1a to meet various needs of users. When the dimming area 1a is in a transparent state, the user can also view the image. When the dimming area 1a is in a foggy state, the dimming layer 20 can block the external ambient light from entering the user's eyes, thereby improving the contrast of the image and improving the display effect.

[0098] The head-up display system 2 provided in this embodiment adopts the laminated glass 1 provided in the above embodiment of the present application, and adds a dimming film to the inner and outer glass plates, so that the laminated glass 1 displays a transparent state when power is off, and displays a foggy state when power is on. In this way, the driving field of view is not affected, and the projection requirements of users such as drivers can be met.

[0099] Please refer to Fig.10 , Fig.10Schematic diagram of a vehicle in one embodiment of the present application. This embodiment provides a vehicle 3 , the vehicle 3 comprising a vehicle body 80 , and a head-up display system 2 as provided in the above embodiment of the present application, the head-up display system 2 being arranged on the vehicle body 80 .

[0100] The head-up display system 2 can be installed on the vehicle body 80, wherein the projection device 70 of the head-up display system 2 is installed inside the vehicle body 80, and the laminated glass 1 of the head-up display system 2 can be installed at the opening of the vehicle body 80. When the laminated glass 1 is installed on the vehicle 3, it is preferably used as the front windshield of the vehicle 3. However, it is not limited to this, and the laminated glass 1 can also be used as the rear windshield or side window glass, thereby providing more display scene applications for the vehicle 3.

[0101] The vehicle 3 provided in this embodiment adopts the head-up display system 2 provided in the above embodiment of the present application, and adds a dimming film to the inner and outer glass plates, so that the laminated glass 1 displays a transparent state when power is off, and displays a foggy state when power is on. In this way, the driving field of view is not affected, and the projection needs of users such as the driver can be met.

[0102] In the description of the present application, it is necessary to understand that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise" and the like to indicate orientations or positional relationships are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present application.

[0103] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of the features. In the description of this application, the meaning of "plurality" is two or more, unless otherwise clearly and specifically defined. In addition, the terms "including" and "having" and any variations thereof are intended to cover non-exclusive inclusions.

[0104] In this application, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be connected, detachably connected, or integrated. It can be mechanically connected or electrically connected. It can be directly connected or indirectly connected through an intermediate medium, and it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to the specific circumstances.

[0105] The above describes the contents provided by the implementation methods of the present application in detail, and describes and illustrates the principles and implementation methods of the present application. These descriptions are only used to help understand the method and its core ideas of the present application. However, the contents of this specification should not be construed as limiting the present application, and those skilled in the art may make various changes and modifications to the present application without departing from the spirit and scope of the present application. These modifications and variations of the present application fall within the scope of the claims of the present application and their equivalents.

Claims

1. A laminated glass, characterized in that: The laminated glass has a dimming zone, and the laminated glass includes a first glass plate, a dimming layer, and a second glass plate, the first glass plate has a first surface and a second surface, the second glass plate has a third surface and a fourth surface, the dimming layer is arranged between the second surface and the third surface, and the dimming layer is arranged in the dimming zone; when the dimming layer is in a power-off state, the laminated glass is in a transparent state, and when the dimming layer is in a power-on state, the laminated glass is in a foggy state.

2. The laminated glass according to claim 1, characterized in that: The laminated glass has a visible light transmittance TL, when the dimming layer is in a power-off state, TL≥70%, and when the dimming layer is in a power-on state, TL<70%.

3. The laminated glass according to claim 1, characterized in that: The laminated glass has a haze H, when the dimming layer is in a power-off state, H≤10%, and when the dimming layer is in a power-on state, H≥90%.

4. The laminated glass according to claim 1, characterized in that: The laminated glass has a total solar transmittance TTS, and when the dimming layer is in a power-off state, the total solar transmittance TTS is 50%-65%.

5. The laminated glass according to claim 1, characterized in that: The laminated glass has an infrared transmittance TIR, and when the dimming layer is in a power-off state, the infrared transmittance TIR is 20%-35%.

6. The laminated glass according to claim 1, characterized in that: The laminated glass has a visible light reflectivity RL, and when the dimming layer is in a power-off state, the visible light reflectivity RL is 3%-15%.

7. The laminated glass according to any one of claims 1 to 6, characterized in that: The laminated glass has a B area, at least part of the dimming zone is located below the B area, the dimming zone includes at least one sub-dimming zone, and when the dimming zone includes multiple sub-dimming zones, the multiple sub-dimming zones can be independently regulated so that when the dimming layer located in each sub-dimming zone is in a power-off state, the corresponding sub-dimming zone is in a transparent state, and when the dimming layer located in each sub-dimming zone is in a power-on state, the corresponding sub-dimming zone is in a foggy state.

8. The laminated glass according to claim 7, characterized in that: The laminated glass has an A region located within the B region, the dimming zone includes a first sub-dimming zone and a second sub-dimming zone, the first sub-dimming zone and the second sub-dimming zone are adjacently arranged in a horizontal direction, and at least a portion of the first sub-dimming zone is located below the A region.

9. The laminated glass according to claim 8, characterized in that: The second sub dimming zone is arranged closer to the top of the laminated glass than the first sub dimming zone.

10. The laminated glass according to claim 7, characterized in that: The dimming zone includes a first sub-dimming zone and a second sub-dimming zone. From the bottom of the laminated glass to the top of the laminated glass, the first sub-dimming zone and the second sub-dimming zone are arranged in sequence.

11. The laminated glass according to any one of claims 1 to 6, characterized in that: The laminated glass has a light-transmitting area and a shielding area arranged at the outer periphery of the light-transmitting area, the dimming area is partially arranged in the light-transmitting area, the rest is arranged in the shielding area, and at least part of the edge of the dimming area is arranged in the shielding area.

12. The laminated glass according to any one of claims 1 to 6, characterized in that: The laminated glass further includes a first adhesive layer and a second adhesive layer, wherein the first adhesive layer connects the second surface and the dimming layer, and the second adhesive layer connects the dimming layer and the third surface.

13. The laminated glass according to claim 12, characterized in that: The thickness of the first adhesive layer is greater than the thickness of the second adhesive layer.

14. The laminated glass according to claim 12, characterized in that: The laminated glass further includes a third bonding layer, the third bonding layer connects the first bonding layer and the second bonding layer, and the third bonding layer is arranged in the same layer as the dimming layer, and the third bonding layer is arranged outside the dimming area.

15. A head-up display system, characterized in that: The head-up display system comprises a projection device and the laminated glass according to any one of claims 1 to 14, wherein the projection device is used to project projection light for forming an image onto a dimming area of ​​the laminated glass.

16. A vehicle, characterized in that: The vehicle includes a vehicle body, and the head-up display system according to claim 15, wherein the head-up display system is arranged on the vehicle body.

Images