Laminated glass and vehicle

Abstract

The application discloses a kind of laminated glass and vehicle, the laminated glass includes: outer glass plate, inner glass plate and the adhesive layer for bonding the outer glass plate and the inner glass plate;The laminated glass has upper edge and lower edge, the laminated glass includes the light-adjusting area near the side of the upper edge and the visible area near the side of the lower edge, signal transmission area is equipped in the visible area;The adhesive layer includes light-adjusting element, and the light-adjusting element is located in light-adjusting area;The thickness of the adhesive layer at least in signal transmission area near the side of the upper edge is greater than the thickness near the side of the lower edge.This application can meet the demand of user sunroof color change, and meet the demand of improving the intelligent of large front glass, so as to improve the driving experience of user.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of automobile glass, in particular to a laminated glass and a vehicle. BACKGROUND

[0002] At present, panoramic front glass (or called panoramic front windshield) is used in electric vehicles. Compared with the existing front windshield, the panoramic front windshield extends the top edge of the front windshield to the roof side, so as to provide an extended vertical field of view for the driver and passengers.

[0003] For the panoramic front windshield, although the field of view of the driver and passengers is expanded, there may be a problem of excessive light in some scenarios. In order to solve the problem of excessive light, one way is to make a corresponding shadow gradient design in the upper part of the glass, for example, to form a gradient color band in the upper part of the glass.

[0004] However, with the continuous development of technology, people's functional requirements for panoramic front windshields are also increasing. In order to better meet the driving experience of users, it is necessary to further optimize the existing front windshield. SUMMARY

[0005] In view of the defects of the prior art, the laminated glass and the vehicle provided in the embodiments of the present application can meet the color-changing requirement of the sunroof above the head of the user and meet the requirement of improving the intelligence of the panoramic front windshield, thereby improving the driving experience of the user.

[0006] The specific technical scheme of the embodiments of the present application is as follows:

[0007] A laminated glass, comprising:

[0008] An outer glass plate, an inner glass plate, and an adhesive layer for bonding the outer glass plate and the inner glass plate; the laminated glass has an upper edge and a lower edge, and comprises a light-adjusting area near one side of the upper edge and a visible area near one side of the lower edge, wherein a signal transmission area is arranged in the visible area; the adhesive layer comprises a light-adjusting element, and the light-adjusting element is located in the light-adjusting area; the thickness of the adhesive layer near one side of the upper edge is greater than the thickness of the adhesive layer near one side of the lower edge at least in the signal transmission area.

[0009] In a preferred embodiment, the laminated glass further comprises a first shielding layer, which is arranged on the inner surface of the outer glass plate, and the first shielding layer covers at least one side of the light-adjusting element near the lower edge of the laminated glass.

[0010] In a preferred embodiment, the length of the laminated glass is between 1300 mm and 1900 mm in the direction extending from the lower edge to the upper edge.

[0011] In a preferred embodiment, the light adjusting element comprises any one of the following: a dyed liquid crystal film, an electrochromic film, a suspended particle film, and a polymer dispersed liquid crystal film.

[0012] In a preferred embodiment, the adhesive layer comprises a colored layer with a visible light transmittance less than 50%, the colored layer at least partially covering the light adjusting area, and the colored layer being stacked with the light adjusting element.

[0013] In a preferred embodiment, the adhesive layer comprises at least a first adhesive layer and a second adhesive layer, the first adhesive layer and the second adhesive layer covering two surfaces of the light adjusting element respectively.

[0014] In a preferred embodiment, the colored layer is located in the first adhesive layer or the second adhesive layer, the colored layer being a film layer with uniform color or a gradient film layer with color gradually lightening from the upper edge to the lower edge.

[0015] In a preferred embodiment, the colored layer is located in the first adhesive layer, the first adhesive layer being a colored layer, or the first adhesive layer comprising a transparent film covering the visual area and a colored layer covering the light adjusting area, the transparent film and the colored layer having the same thickness; and the second adhesive layer being a transparent film.

[0016] In a preferred embodiment, when the first adhesive layer comprises a transparent film covering the visual area and a colored layer covering the light adjusting area, the first shielding layer at least covers the joint position of the transparent film and the colored layer.

[0017] In a preferred embodiment, the colored layer is located in the second adhesive layer; the first adhesive layer is a transparent film; and the second adhesive layer is a gradient film layer with color gradually lightening from the upper edge to the lower edge.

[0018] In a preferred embodiment, the thickness of the second adhesive layer is greater on the side close to the upper edge than on the side close to the lower edge at least in the signal transmittance area.

[0019] In a preferred embodiment, the second adhesive layer is provided with a second notch, and a wedge-shaped film is arranged in the second notch, the thickness of the wedge-shaped film decreasing from the upper edge to the lower edge.

[0020] In a preferred embodiment, the maximum thickness difference between the wedge-shaped film and the second adhesive layer is within 0.5 mm.

[0021] In a preferred embodiment, the adhesive layer further comprises a carrier layer for serving as the carrier of the light-adjusting element, and the carrier layer is provided with a first gap for filling the light-adjusting element.

[0022] In a preferred embodiment, the first gap is at least 30 mm in width from the edge of the carrier layer.

[0023] In a preferred embodiment, the thickness of the carrier layer is the same as the thickness of the light-adjusting element, or the sum of the thickness of the first adhesive layer and the thickness of the light-adjusting element is equal to the thickness of the carrier layer when the first adhesive layer is filled in the first gap.

[0024] In a preferred embodiment, the laminated glass further comprises a second shielding layer provided on the inner surface or the outer surface of the inner glass sheet, and the second shielding layer covers at least one side of the light-adjusting element close to the lower edge of the laminated glass.

[0025] A vehicle comprising the laminated glass described above.

[0026] The technical scheme of the present application has the following remarkable beneficial effects:

[0027] The laminated glass provided in the embodiments of the present application can realize the intelligent light-adjusting function above the head of the driver or passenger by arranging the light-adjusting element on the light-adjusting area close to the upper edge, so as to meet the color-changing function requirement of the head-top sunroof of the driver or passenger. The signal-transmitting area in the visible area close to the lower edge can meet the intelligent requirement of the front windshield laminated glass. The adhesive layer with decreasing thickness from top to bottom in the signal-transmitting area can correct the glass secondary phase value, so as to reduce or even eliminate ghosting as much as possible, and further improve the accuracy of the advanced driver assistance system.

[0028] Certain embodiments of the application are disclosed in the specification and illustrated in the accompanying drawings by way of examples. As will be realized, the embodiments of the application are capable of modifications in various obvious aspects, all without departing from the spirit and scope of the present application. The embodiments of the application should be understood to include all such modifications within the scope and spirit of the claims. Features of the disclosed embodiments can be combined in any combination desired to produce other embodiments which are included within the scope of the application. Other embodiments of the application will be apparent to those skilled in the art from consideration of the specification and practice of the application disclosed herein. For example, to specify an embodiment is to specify every possible embodiment falling under the teachings of the specification. It will be understood by those within the art that, in general, terms used herein, and especially, terms of degree such as "comprising", "including", "carrying", "or" are to be construed in a non-limiting sense, unless otherwise indicated. It will be further understood that the use of relational terms such as first, second, top, bottom, upper, lower, left, right, and the like are used solely to distinguish one from another entity or action without necessarily implying an actual such relationship or order. It will be understood that the singular forms "a", "an", and "the" include plural referents unless the context clearly dictates otherwise. It will be further understood that the terms "comprise", "comprises", "comprising", "include", "includes", and "including" are not intended to exclude other components or steps. It will be further understood that the terms "coupled", "coupling", "connected", "connecting", or "connection" are intended to mean either an indirect or direct connection. Thus, unless otherwise noted, terms such as "coupled", "coupling", "connected", "connecting", or "connection" are intended to mean either an indirect or direct connection. Thus, the terms "coupled", "coupling", "connected", "connecting", or "connection" are intended to mean either an indirect or direct connection. BRIEF DESCRIPTION OF DRAWINGS

[0029] The accompanying drawings described herein are for illustrative purposes only and are not intended to limit the scope of the invention in any way. Furthermore, the shapes and proportions of the components in the drawings are merely illustrative to aid in understanding the invention and do not specifically limit the shapes and proportions of the components. Those skilled in the art, guided by the teachings of this invention, can select various possible shapes and proportions to implement the invention according to specific circumstances.

[0030] Figure 1 This is a schematic diagram of the structure of a laminated glass provided in the embodiments of this application;

[0031] Figure 2 This is a schematic diagram of the structure of a laminated glass provided in the embodiments of this application;

[0032] Figure 3 This is a schematic diagram of the structure of a laminated glass provided in the embodiments of this application;

[0033] Figure 4 This is an exploded view of the laminated glass provided in the first embodiment of this application;

[0034] Figure 5 This is an exploded view of the laminated glass provided in the second embodiment of this application;

[0035] Figure 6 This is an exploded view of the laminated glass provided in the third embodiment of this application;

[0036] Figure 7 This is an exploded view of the laminated glass provided in the fourth embodiment of this application;

[0037] Figure 8 This is an exploded view of the laminated glass provided in the fifth embodiment of this application;

[0038] Figure 9 This is an exploded view of the laminated glass provided in the sixth embodiment of this application;

[0039] Figure 10 This is an exploded view of the laminated glass provided in the seventh embodiment of this application;

[0040] Figure 11 This is an exploded view of the laminated glass provided in the eighth embodiment of this application;

[0041] Figure 12 This is an exploded view of the laminated glass provided in the ninth embodiment of this application;

[0042] Figure 13 This is an exploded view of the laminated glass provided in the tenth embodiment of this application;

[0043] Figure 14 This is an exploded view of the laminated glass provided in the eleventh embodiment of this application;

[0044] Figure 15 This is an exploded view of the laminated glass provided in the twelfth embodiment of this application;

[0045] Figure 16 This is an exploded view of the laminated glass provided in the thirteenth embodiment of this application;

[0046] Figure 17 This is a schematic diagram showing the splicing of the carrier layer and the dimming element provided in the embodiments of this application;

[0047] Figure 18 This is a schematic diagram of the optical path of the signal transmission area provided in the embodiments of this application;

[0048] Figure 19 Based on Figure 18 The schematic diagram of the optical path through the signal projection area provided in the diagram illustrates the principle of determining the position, shape, and size of the wedge-shaped film.

[0049] Reference numerals in the figures of this application:

[0050] 1. Outer glass panel;

[0051] 2. Color layer;

[0052] 3. First adhesive layer;

[0053] 4. Carrier layer;

[0054] 41. The first gap;

[0055] 5. Dimming element;

[0056] 6. Second adhesive layer;

[0057] 61. The second gap;

[0058] 7. Wedge-shaped membrane;

[0059] 8. Inner glass panel;

[0060] 9. First shielding layer;

[0061] 10. Second shielding layer;

[0062] 101. Visible area;

[0063] 201. Dimming area;

[0064] 202. Top edge;

[0065] 102. Bottom edge;

[0066] 301. Human head model. Detailed Implementation

[0067] The technical solution of the present invention will be described in detail below with reference to the accompanying drawings and specific embodiments. It should be understood that these embodiments are only used to illustrate the present invention and are not intended to limit the scope of the present invention. After reading the present invention, any modifications of the present invention in various equivalent forms by those skilled in the art fall within the scope defined by the appended claims.

[0068] It should be noted that when an element is referred to as being "set on" another element, it can be directly on the other element or there may be an intervening element. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or there may be an intervening element. The terms "vertical," "horizontal," "upper," "lower," "left," "right," and similar expressions used herein are for illustrative purposes only and do not represent the only possible implementation.

[0069] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs. The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the application. The term "and / or" as used herein includes any and all combinations of one or more of the associated listed items.

[0070] This invention provides a laminated glass that, when applied to a vehicle's panoramic windshield, can meet the user's need for a color-changing sunroof and enhance the intelligent features of the large windshield, thereby improving the user's overall driving experience.

[0071] Please refer to the following for comprehensive information. Figures 1 to 16 This application specification provides a laminated glass, which may include: an outer glass plate 1, an inner glass plate 8, and an adhesive layer for bonding the outer glass plate 1 and the inner glass plate 8; the laminated glass has an upper edge 202 and a lower edge 102, and includes a dimming area 201 near the upper edge 202 and a viewing area 101 near the lower edge 102, wherein a signal transmission area is provided in the viewing area 101; the adhesive layer includes a dimming element 5 located within the dimming area 201; the thickness of the adhesive layer near the upper edge 202 is greater than the thickness near the lower edge 102, at least within the signal transmission area.

[0072] In this embodiment, the laminated glass mainly includes: an outer glass panel 1, an inner glass panel 8, and an adhesive layer. This embodiment primarily uses the application of the laminated glass in a vehicle's panoramic windshield as an example for illustration. When the laminated glass is applied in other scenarios, this application can be used as a reference.

[0073] Please refer to the following: Figure 1 , Figure 2 and Figure 3 For a vehicle's panoramic windshield, it includes the windshield itself and a portion extending from the top of the windshield towards the roof, forming opposing viewing areas 101 and dimming areas 201. The viewing area 101 is generally located in the lower middle part of the panoramic windshield. The dimming area 201 is generally located in the upper part of the panoramic windshield, opposite to the top of the heads of the front passenger. Figure 1 As shown, the dimming area 201 is specifically the area that can cover the front head model 301. The visible area 101 is located at the windshield of the vehicle.

[0074] like Figure 2 As shown, for this panoramic windshield, its length L, from the lower edge 102 to the upper edge 202 along the entire extension direction of the laminated glass, is between 1300 mm and 1900 mm, thereby forming a panoramic windshield structure for the vehicle. This length L can be adaptively adjusted according to different influencing factors such as vehicle model and manufacturing process; therefore, in this embodiment, cases where the length L is less than 1300 mm or greater than 1900 mm are not completely excluded.

[0075] like Figure 3 As shown, the panoramic windshield has a certain curvature extending from the lower edge 102 to the upper edge 202. The line connecting the lower edge 102 and the upper edge 202 serves as a reference line, and the maximum distance (i.e., spherical dimension) H1 between the laminated glass and this reference line is at least 50mm. This spherical dimension H1 can be adjusted adaptively based on factors such as vehicle model and manufacturing process, and cases where the spherical dimension is less than 50mm are not excluded.

[0076] The outer glass panel 1 includes a first surface and a second surface opposite to each other, wherein the first surface is the outer surface and is in contact with the external environment of the vehicle. The inner glass panel 8 includes a third surface and a fourth surface opposite to each other, wherein the fourth surface is the inner surface and is in contact with the internal environment of the vehicle.

[0077] The outer glass panel 1 and the inner glass panel 8 must meet predetermined transmittance requirements. Specifically, the transmittance of both the outer glass panel 1 and the inner glass panel 8 must be greater than 70%. The glass color composition of the outer glass panel 1 and the inner glass panel 8 can be SG / G / C (dark green / green / transparent), with any combination of the three colors, not limited to the inner / outer order. When this laminated glass is used in a vehicle's panoramic windshield, the single-layer thickness of the outer glass panel 1 and the inner glass panel 8 must be ≥2.0mm to ensure both high yield during production and reliability and safety during use.

[0078] The adhesive layer is located in the middle layer of the laminated glass, and its main function is to bond two adjacent surfaces together. When this adhesive layer is used in a panoramic windshield of a vehicle, the material of the adhesive layer includes, but is not limited to, polyvinyl butyral (PVB), ethylene-vinyl acetate copolymer (EVA), polyolefin thermoplastic elastomer (POE), polycarbonate (PC), or polymethyl methacrylate (PMMA). In some specific embodiments, the main material of the adhesive layer can be polyvinyl butyral (PVB). PVB has excellent adhesion to glass and optical transparency after lamination. In some embodiments, the thickness of the adhesive layer is between 0.3 mm and 2 mm; in some specific embodiments, the thickness of the adhesive layer can be 0.38 mm, 0.76 mm, 1.14 mm, 1.52 mm, etc.

[0079] The number of adhesive layers can vary depending on the specific composition of the laminated glass and the arrangement of each functional layer. Specifically, it can include at least two layers, for example, two layers, three layers, or more than three layers. For example, when the adhesive layer includes a first adhesive layer 3 and a second adhesive layer 6, the first adhesive layer 3 and the second adhesive layer 6 respectively cover the two surfaces of the dimming element 5. The following description will illustrate different embodiments.

[0080] The laminated glass includes a dimming area 201 near the upper edge 202 and a viewing area 101 near the lower edge 102. The viewing area 101 includes a signal transmission area, specifically an area for optical signals from devices such as lidar, sensors, or ADAS (Advanced Driving Assistance System) devices to pass through. In particular, it ensures good transmittance for infrared signals within the signal transmission area, meeting the intelligent requirements of large windshield laminated glass.

[0081] ADAS, or Advanced Driver Assistance Systems, utilizes various sensors installed on the vehicle (such as millimeter-wave radar, lidar, monocular / dual-lens cameras, and satellite navigation) to continuously sense the surrounding environment while the car is in motion, collect data, identify, detect, and track static and dynamic objects, and combine this with navigation map data to perform system calculations and analyses. This allows the driver to anticipate potential dangers and effectively increases the comfort and safety of driving.

[0082] The adhesive layer has a greater thickness near the upper edge 202 than near the lower edge 102 within the signal transmission area. By using an adhesive layer with decreasing thickness from top to bottom within the signal transmission area, the requirements for optical sub-phases can be met.

[0083] Specifically, incident light enters the first surface (i.e., the outer surface) of the outer glass plate 1 at a certain angle of incidence and passes through the laminated glass to reach the observation point. The light bends (i.e., refraction occurs) as it passes through the laminated glass. This refraction causes a shift / offset in the initial image of the observed object. Furthermore, some of the incident light entering the laminated glass is reflected back from the fourth surface (i.e., the inner surface) of the inner glass plate 8 and exits the laminated glass. A portion of the reflected light is reflected back again from the first surface of the outer glass plate 1, resulting in ghosting in the image received at the observation point. In this application, by providing an adhesive layer with decreasing thickness from top to bottom in the signal transmission area, ghosting can be minimized or even eliminated.

[0084] Specifically, the adhesive layer in the signal transmission area can be in the form of a wedge-shaped film, which can improve the glass subphase value. The wedge-shaped film can be disposed in the signal transmission area by filling it in. When the wedge-shaped film 7 is disposed in the second adhesive layer 6 in a filling manner, the maximum thickness difference between the wedge-shaped film 7 and the second adhesive layer 6 is controlled within 0.5 mm to avoid excessive thickness difference causing optical deformation of the glass. In some further embodiments, the maximum thickness difference between the wedge-shaped film 7 and the second adhesive layer 6 is controlled within 0.4 mm, or within 0.3 mm, or within 0.2 mm.

[0085] When the wedge-shaped film 7 is set by filling, a second notch 61 can be provided in the second adhesive layer 6. Since the wedge-shaped film 7 fills the second notch 61, the shape of the wedge-shaped film 7 matches the shape of the second notch 61. Please refer to [reference needed]. Figure 18 and Figure 19 The position, shape, and size of the wedge-shaped film 7 can be determined as follows: the intersection of the light path in the signal transmission area and the inner surface of the glass forms a closed shape E, and the wedge-shaped film 7 is obtained by equidistant translation based on this closed shape E. Specifically, the distance A between the filling area corresponding to the second notch 61 and the intersection line is ≥ 1.5 mm. In some cases where boundary requirements are high, A ≥ 10 mm is used to avoid ink printing boundaries; to ensure the function and operability of the filling area, B ≥ 10 mm + A. Without affecting the optical performance of other areas, a larger B is better.

[0086] Specifically, the shape of the second notch 61 can be square, rectangle, trapezoid, etc. In some specific embodiments, the minimum height of the second notch 61 is ≥30mm and the minimum width of the second notch 61 is ≥30mm.

[0087] Alternatively, a single wedge-shaped film with a gradually varying thickness can be applied throughout the entire laminated glass area. The specific angle and dimensions of this wedge-shaped film can be customized based on the actual vehicle being used, using theoretical data simulation as the standard; this application does not impose any specific limitations on it.

[0088] The adhesive layer also includes a dimming element 5, which is located within the dimming area 201. This dimming element 5 is used to achieve intelligent dimming of the dimming area 201 located above the heads of the driver and passengers. The dimming element employs a diaphragm structure, allowing it to be better positioned within the adhesive layer.

[0089] Specifically, the dimming element 5 can be at least one of a liquid crystal dyes (LC dyes) film, an electrochromic (EC) film, a suspended particle device (SPD) film, and a polymer dispersed liquid crystal (PDLC) film. Of course, the dimming element 5 can also be other types of films, and is not limited to the above description. Those skilled in the art, inspired by the technical essence of this application, may make other modifications, but as long as the function and effect achieved are the same as or similar to those of this application, they should all be covered within the scope of protection of this application.

[0090] In the embodiments of this application, the example of using an EC film for the dimming element 5 is used for illustration. When other types of films are used for the dimming element 5, the embodiments of the EC film can be adapted accordingly.

[0091] When the dimming element 5 is an EC film, the EC film consists of 5 layers, which are arranged sequentially as follows: a PET protective layer, an electrochromic layer, a solid electrolyte, an ion storage layer, and the PET protective layer. Correspondingly, the adhesive layer may also include a carrier layer 4 serving as a support for the dimming element 5. The carrier layer 4 has a first notch 41 for filling the dimming element 5. By fixing the position of the dimming element 5 through the carrier layer 4, a stable bond can be formed between the dimming element 5 and the glass, while the carrier layer also protects the dimming element 5.

[0092] In some embodiments, the thickness of the carrier layer 4 can be the same as the thickness of the dimming element 5. Specifically, when using a PVB film as a carrier for the dimming element 5, a PVB film with a certain thickness can be selected, such as a transparent PVB film with a thickness of 0.38 mm. This PVB film used as a carrier is defined as carrier layer 4. A first notch 41 can be provided in the carrier layer 4 at the dimming area 201, and the position of the first notch 41 is directly opposite the head area of ​​the front passenger. The first notch 41 is used to fill the dimming element 5, such as an EC film. The thickness of the EC film is the same as or similar to the thickness of the carrier layer 4, which can avoid forming a significant thickness difference. For example, when the carrier layer 4 is 0.38 mm, the thickness of the EC film is also 0.38 mm, ensuring that the EC film achieves the best splicing effect on films of equal thickness.

[0093] Please refer to the following: Figure 17 The first notch 41 is ≥30mm away from the edge of the carrier layer 4, ensuring that the dimming element 5 is reliably sealed and preventing moisture from entering, which could cause the dimming element 5 to malfunction.

[0094] The shape of the first notch 41 can be a regular or irregular shape such as a rectangle or trapezoid. Of course, the specific shape of the first notch 41 is not limited to the above examples. It can vary depending on the structure of the vehicle to which it is applied. This application does not make any specific limitations here.

[0095] The laminated glass provided in this application embodiment, by setting a dimming element 5 in the dimming area 201 near the upper edge 202, can realize an intelligent dimming function above the driver's head, meeting the driver's and passengers' needs for the color-changing function and sunshade of the sunroof; by setting a signal transmission area in the visible area 101 near the lower edge 102, it can meet the intelligent requirements of the panoramic windshield, and in this signal transmission area, at least within the range corresponding to the driver's line of sight, an adhesive layer with a thickness decreasing from top to bottom can be set, which can correct the glass sub-phase value, thereby minimizing or even eliminating ghosting as much as possible, thereby reducing optical interference to ADAS-related optical equipment, and further improving the accuracy of the advanced driver assistance system.

[0096] Furthermore, in some embodiments, the laminated glass may also include a first shielding layer 9, which is disposed on the inner surface (i.e., the second surface) of the outer glass panel 1. The first shielding layer 9 at least covers the side of the dimming element 5 near the lower edge 102 of the laminated glass, thereby ensuring that the boundary of the dimming element 5 and the splicing marks of the PVB (carrier layer 4) are not visible from the outside of the vehicle.

[0097] Specifically, the first shielding layer 9 can be formed by ink printing. When the first shielding layer 9 is formed by ink printing, the manufacturing difficulty is low and it will not have a negative impact on the shape of the laminated glass.

[0098] Of course, the formation of the first shielding layer 9 is not limited to the above examples, that is, it is not limited to printed graphic shapes. As long as the shielding function is met, those skilled in the art may make other changes under the guidance of the technical essence of this application. However, as long as the function and effect achieved are the same as or similar to this application, they should be covered within the scope of protection of this application.

[0099] The effective width of the first shielding layer 9 is ≥5mm. Specifically, the first shielding layer 9 can be a strip-shaped area with a certain width. Of course, this application does not specifically limit the specific shape and structure of the first shielding layer 9, as long as it meets the aesthetic requirements of good appearance.

[0100] In addition, in some embodiments, the first shielding layer 9 may also be provided along the edge of the outer glass panel 1 and cover the edge of the outer glass panel 1 to achieve the function of shielding the edge of the laminated glass, so that when the laminated glass is installed on the vehicle body, the structure at the connection between the glass and the vehicle body can be avoided from the outside of the vehicle, thus achieving an aesthetic effect.

[0101] Furthermore, in some embodiments, the laminated glass may also include a second shielding layer 10, which is disposed on the inner or outer surface of the inner glass plate 8, and the second shielding layer 10 at least covers the dimming element 5 on the side near the lower edge 102 of the laminated glass.

[0102] A second shielding layer may be provided on the inner surface (i.e., the third surface) or the outer surface (i.e., the fourth surface) of the inner glass panel 8. By providing a second shielding layer 10 in the laminated glass, it is used to at least cover the side of the dimming element 5 near the lower edge 102 of the laminated glass, thereby ensuring that when the interior light of the vehicle is sufficient, such as when a high-brightness lighting device is turned on, the boundary of the dimming element 5 and the splicing mark of the PVB (carrier layer 4) will not be visible from inside the vehicle.

[0103] In addition, in some embodiments, the second shielding layer 10 may also be provided along the edge of the inner glass panel 8 and cover the edge of the inner glass panel 8 to achieve the function of shielding the edge of the laminated glass, so that when the laminated glass is installed on the vehicle body, the structure at the connection between the glass and the vehicle body can be avoided from the inside of the vehicle, thus achieving an aesthetic effect.

[0104] In some embodiments, the adhesive layer includes a colored layer 2 with a visible light transmittance of less than 50%, the colored layer 2 at least partially covering the dimming area 201, and the colored layer 2 is stacked with the dimming element 5. In some embodiments, the colored layer 2 completely covers the dimming area 201, or in other embodiments, the dimming area 201 completely covers the colored layer 2.

[0105] The coloring layer 2 is mainly used in conjunction with the dimming element 5. For example, when the dimming element 5 uses an EC film, the EC film can change the overall visible light transmittance TL of the transparent laminated glass within the range of 10% to 60%. When combined with the coloring layer 2, which has a lower visible light transmittance, such as a gray PVB film, the overall visible light transmittance TL of the laminated glass can be changed within the range of 2% to 10%. The specific color of the coloring layer 2 is not limited to the gray example mentioned above; it can also be other colors. The adjustment range of the visible light transmittance TL by the dimming element 5 is not limited to the aforementioned 10% to 60% or 2% to 10% ranges. This application does not limit the specific color of the coloring layer 2.

[0106] Alternatively, in some embodiments, when the adhesive layer includes a coloring layer 2, a coloring layer 2 is also disposed within the first notch 41, and the sum of the thicknesses of the coloring layer 2 and the dimming element 5 is equal to the thickness of the carrier layer 4. For example, the carrier layer 4 can be a 0.76mm thick PVB film, the coloring layer 2 can be a 0.38mm thick colored PVB film, and the dimming element 5 can be a 0.38mm thick EC film. When the coloring layer 2 is disposed within the first notch 41 in a filling manner, the size of the coloring layer 2 is consistent with the size of the dimming element 5. When the coloring layer 2 is also disposed within the first notch 41 in a filling manner, since the periphery of the coloring layer 2 can be effectively constrained by the frame of the first notch 41 during filling, the yield rate of the laminated glass can be improved.

[0107] In addition, in some embodiments, the coloring layer 2 can be a gradient film whose color gradually lightens from the upper edge to the lower edge. If the area of ​​the gradient film is the same as the overall area of ​​the adhesive layer, the side of the gradient film closest to the visible area is a transparent film, so as not to affect the vision of the driver and passengers. In some specific embodiments, the visible light transmittance within the visible area is greater than 70%.

[0108] The laminated glass provided in this application will be described in detail below with reference to the specific accompanying drawings and embodiments.

[0109] like Figure 4 As shown, in the first embodiment, the laminated glass includes: an outer glass plate 1, a first adhesive layer 3, a carrier layer 4, a dimming element 5, a second adhesive layer 6, a wedge-shaped film 7, an inner glass plate 8, and a first shielding layer 9.

[0110] The first shielding layer 9 is located on the inner surface of the outer glass panel 1 and is mainly used to shield the splicing position of the dimming element 5 to prevent it from affecting the overall appearance of the vehicle when viewed from the outside. The first shielding layer 9 can be a strip-shaped area with a certain width, at least 5mm. The first shielding layer 9 is used to shield at least the splicing position of the dimming element 5 located on the lower side, as this position is more likely to affect the appearance. Of course, it is also possible that the first shielding layer 9 can be configured to fully cover the splicing position of the dimming element 5.

[0111] The coloring layer 2 is located on the first adhesive layer 3. The first adhesive layer 3 includes a transparent PVB film and the coloring layer 2 of the same thickness, which are spliced ​​together to form the first adhesive layer 3. The first shielding layer 9 at least covers the splicing position between the transparent PVB film and the coloring layer 2. Specifically, the first adhesive layer 3 includes a transparent PVB film with a thickness of 0.38 mm and a colored PVB film sheet with a thickness of 0.38 mm, which are spliced ​​together to form the first adhesive layer 3.

[0112] The carrier layer 4 has a first notch 41 for filling the dimming element 5. The thickness of the carrier layer 4 is the same as the thickness of the dimming element 5. Specifically, the carrier layer 4 can be a transparent PVB film with a thickness of 0.38 mm, and the dimming element 5 can be an EC film with a thickness of 0.38 mm.

[0113] The second adhesive layer 6 has a second notch 61, and the wedge-shaped film 7 is disposed within the second notch 61. The thickness of the wedge-shaped film 7 decreases from the upper edge 202 to the lower edge 102. Specifically, the second adhesive layer 6 can be a single sheet of transparent PVB film with a thickness of 0.76 mm. The second notch 61 is provided on the second adhesive layer 6 at a position corresponding to the signal transmission area to fill the wedge-shaped film 7.

[0114] In this embodiment, the wedge-shaped film 7 is filled into the second adhesive layer 6, which can effectively reduce the thickness of the laminated glass and reduce the production cost; and during filling, since the wedge-shaped film 7 can be effectively constrained by the second notch 61 on all four sides, the yield rate of the laminated glass during the production process can be guaranteed.

[0115] like Figure 5 As shown, in the second embodiment, the laminated glass includes: an outer glass plate 1, a first adhesive layer 3, a carrier layer 4, a dimming element 5, a second adhesive layer 6, a wedge-shaped film 7, an inner glass plate 8, a first shielding layer 9, and a second shielding layer 10.

[0116] In this second embodiment, the main difference from the first embodiment is that the laminated glass further includes a second shielding layer 10. The second shielding layer 10 is disposed on the inner surface of the inner glass plate 8, and the second shielding layer 10 at least covers the side of the dimming element 5 near the lower edge 102 of the laminated glass.

[0117] The laminated glass incorporates a second shielding layer 10 to at least cover the side of the dimming element 5 near the lower edge 102 of the laminated glass. This ensures that when the interior lighting is sufficient, such as when high-brightness lighting is on, the seam between the boundary of the dimming element 5 and the PVB film (carrier layer 4) is not visible from inside the vehicle. When both the first shielding layer 9 and the second shielding layer 10 are present in the laminated glass, their positions can overlap, meaning both cover the seam area of ​​the dimming element 5 that needs to be shielded.

[0118] like Figure 6 As shown, in the third embodiment, the laminated glass includes: an outer glass plate 1, a first adhesive layer 3, a carrier layer 4, a dimming element 5, a second adhesive layer 6, an inner glass plate 8, a first shielding layer 9, and a second shielding layer 10.

[0119] In this third embodiment, the main difference from the second embodiment is that the second adhesive layer 6 is a whole transparent wedge-shaped film 7, that is, the second adhesive layer 6 is a whole wedge-shaped film 7 instead of filling a wedge-shaped film 7 into a PVB film of uniform thickness to form the second adhesive layer 6.

[0120] like Figure 7 As shown, in the fourth embodiment, the laminated glass includes: an outer glass plate 1, a coloring layer 2 (first adhesive layer 3), a carrier layer 4, a dimming element 5, a second adhesive layer 6, a wedge-shaped film 7, an inner glass plate 8, a first shielding layer 9, and a second shielding layer 10.

[0121] In this fourth embodiment, the main difference from the second embodiment is that the first adhesive layer 3 and the coloring layer 2 are integrated into one layer; in other words, the first adhesive layer 3 is a coloring layer 2 whose dimensions match the first notch 41. The sum of the thicknesses of the coloring layer 2 and the dimming element 5 is equal to the thickness of the carrier layer 4.

[0122] For example, the carrier layer 4 can be a 0.76mm thick PVB film, the coloring layer 2 can be a 0.38mm thick colored PVB film, and the dimming element 5 can be a 0.38mm thick EC film. When the coloring layer 2 is filled into the first notch 41, it helps to reduce the thickness of the laminated glass, thus reducing weight and cost. When the first adhesive layer 3 and the coloring layer 2 are integrated into one layer, it can be understood as equivalent to reducing one PVB film (first adhesive layer 3).

[0123] Furthermore, when the colored layer 2 is also filled in the first notch 41, the outer periphery of the colored layer 2 can be effectively constrained by the frame of the first notch 41 during filling, thereby improving the yield rate of the laminated glass.

[0124] like Figure 8 As shown, in the fifth embodiment, the laminated glass includes: an outer glass plate 1, a coloring layer 2 (first adhesive layer 3), a carrier layer 4, a dimming element 5, a second adhesive layer 6, a wedge-shaped film 7, an inner glass plate 8, a first shielding layer 9, and a second shielding layer 10.

[0125] In this fifth embodiment, the main difference from the fourth embodiment is that the second adhesive layer 6 is a whole transparent wedge-shaped film 7, that is, the second adhesive layer 6 is a whole wedge-shaped film 7 instead of filling a wedge-shaped film 7 into a PVB film of uniform thickness to form the second adhesive layer 6.

[0126] like Figure 9 As shown, in the sixth embodiment, the laminated glass includes: an outer glass plate 1, a coloring layer 2 (first adhesive layer 3), a carrier layer 4, a dimming element 5, a second adhesive layer 6, an inner glass plate 8, and a first shielding layer 9.

[0127] In this sixth embodiment, the main difference from the fifth embodiment is that the second shielding layer 10 on the inner glass plate 8 is removed.

[0128] like Figure 10 As shown, in the seventh embodiment, the laminated glass includes: an outer glass plate 1, a coloring layer 2 (first adhesive layer 3), a carrier layer 4, a dimming element 5, a second adhesive layer 6, a wedge-shaped film 7, an inner glass plate 8, and a first shielding layer 9.

[0129] The main difference between this seventh embodiment and the sixth embodiment described above is that:

[0130] In this embodiment, the wedge-shaped film 7 is filled into the second adhesive layer 6, which can reduce the production cost; and during filling, since the wedge-shaped film 7 can be effectively constrained by the second notch 61 on all four sides, the yield of laminated glass can be guaranteed.

[0131] Alternatively, when comparing the seventh embodiment with the fourth embodiment, the main difference between the seventh embodiment and the fourth embodiment is that the second shielding layer 10 on the inner glass plate 8 is removed.

[0132] like Figure 11 or Figure 12 As shown, in some embodiments, the second adhesive layer 6 can be a gradient film with a gradually deepening color and uniform thickness from the lower edge 102 to the upper edge 202. Using the gradient film as the second adhesive layer 6 can serve to set a coloring layer in the dimming area; the first adhesive layer 3 is a transparent PVB film filled in the first gap 41.

[0133] like Figure 11 As shown, in the eighth embodiment, the laminated glass may include: an outer glass plate 1, a first adhesive layer 3, a carrier layer 4, a dimming element 5, a second adhesive layer 6, a wedge-shaped film 7, an inner glass plate 8, and a first shielding layer 9.

[0134] In this eighth embodiment, the main difference from the seventh embodiment is that the second adhesive layer 6 is a PVB film with a gradually deepening color and uniform thickness from the lower edge 102 to the upper edge 202. For example, the second adhesive layer 6 is a gradient PVB film with a thickness of 0.76 mm, and a second notch 61 is provided in the second adhesive layer 6 for setting the wedge-shaped film 7, and the first adhesive layer 3 uses a transparent PVB film.

[0135] like Figure 12 As shown, in the ninth embodiment, the laminated glass may include: an outer glass plate 1, a first adhesive layer 3, a carrier layer 4, a dimming element 5, a second adhesive layer 6, a wedge-shaped film 7, an inner glass plate 8, a first shielding layer 9, and a second shielding layer 10.

[0136] In this ninth embodiment, the main difference from the eighth embodiment is that a second shielding layer 10 is also provided on the inner glass plate 8.

[0137] like Figures 13 to 16 As shown, in some embodiments, the second adhesive layer 6 is a single, gradient wedge-shaped film 7. Specifically, the color of the single, gradient wedge-shaped film 7 gradually deepens from the lower edge 102 near the laminated glass to the upper edge 202 of the laminated glass.

[0138] like Figure 13 As shown, in the tenth embodiment, the laminated glass may include: an outer glass plate 1, a first adhesive layer 3, a carrier layer 4, a dimming element 5, a second adhesive layer 6, an inner glass plate 8, and a first shielding layer 9.

[0139] In this tenth embodiment, the main difference from the sixth embodiment is that the second adhesive layer 6 is a single, gradient wedge-shaped film 7, and the first adhesive layer 3 is a transparent PVB film filled in the first notch 41.

[0140] like Figure 14 As shown, in the eleventh embodiment, the laminated glass may include: an outer glass plate 1, a first adhesive layer 3, a carrier layer 4, a dimming element 5, a second adhesive layer 6, an inner glass plate 8, a first shielding layer 9, and a second shielding layer 10.

[0141] In this eleventh embodiment, the main difference from the fifth embodiment is that the second adhesive layer 6 is a single, gradient wedge-shaped film 7, and the first adhesive layer 3 is a transparent PVB film filled in the first notch 41.

[0142] like Figure 15 As shown, in the twelfth embodiment, the laminated glass may include: an outer glass plate 1, a first adhesive layer 3, a carrier layer 4, a dimming element 5, a second adhesive layer 6, an inner glass plate 8, and a first shielding layer 9.

[0143] In this twelfth embodiment, the main difference from the tenth embodiment is that the first adhesive layer 3 is a PVB film of uniform thickness.

[0144] like Figure 16 As shown, in the thirteenth embodiment, the laminated glass may include: an outer glass plate 1, a first adhesive layer 3, a carrier layer 4, a dimming element 5, a second adhesive layer 6, an inner glass plate 8, a first shielding layer 9, and a second shielding layer 10.

[0145] In this thirteenth embodiment, the main difference from the eleventh embodiment is that the first adhesive layer 3 is a PVB film of uniform thickness.

[0146] Furthermore, in the above embodiments, while the relative positions of the outer glass plate 1 and the inner glass plate 8 remain unchanged, the positions of the first adhesive layer 3 and the second adhesive layer 6 can be interchanged to form other embodiments.

[0147] This application also provides a vehicle, which mainly includes the above-mentioned laminated glass. The laminated glass is used to form a panoramic windshield of the vehicle. By setting the laminated glass, the vehicle can achieve the technical effects achieved by the laminated glass implementation method. For details, please refer to the specific description of the above implementation method. This application will not repeat it here.

[0148] It should be noted that in the description of this application, the terms "first," "second," etc., are used only for descriptive purposes and to distinguish similar objects; there is no order between them, nor should they be construed as indicating or implying relative importance. Furthermore, in the description of this application, unless otherwise stated, "multiple" means two or more.

[0149] The various embodiments described in this specification are presented in a progressive manner. The same or similar parts between the embodiments can be referred to each other. Each embodiment focuses on the differences from other embodiments.

[0150] The above are merely a few embodiments of the present invention. Although the embodiments disclosed in the present invention are as described above, the content is only for the purpose of facilitating understanding of the present invention and is not intended to limit the present invention. Any person skilled in the art to which this invention pertains may make any modifications and changes in the form and details of the embodiments without departing from the spirit and scope disclosed in the present invention. However, the patent protection scope of the present invention shall still be determined by the scope defined in the appended claims.

Claims

1. A laminated glass, characterized in that, include: An outer glass plate, an inner glass plate, and an adhesive layer for bonding the outer glass plate and the inner glass plate; The laminated glass has an upper edge and a lower edge, and includes a dimming area near the upper edge and a visible area near the lower edge, wherein a signal transmission area is provided in the visible area; The adhesive layer includes a dimming element located within the dimming area; The thickness of the adhesive layer is greater than that of the side near the upper edge in the signal transmission area than that near the lower edge. The adhesive layer includes at least a first adhesive layer and a second adhesive layer, wherein the first adhesive layer and the second adhesive layer respectively cover the two surfaces of the dimming element; The thickness of the second adhesive layer is greater than its thickness near the lower edge, at least within the signal transmission area, on the side closer to the upper edge. The second adhesive layer has a second notch, and a wedge-shaped membrane is disposed within the second notch. The thickness of the wedge-shaped membrane decreases from the upper edge to the lower edge.

2. The laminated glass as described in claim 1, characterized in that, The laminated glass further includes a first shielding layer disposed on the inner surface of the outer glass panel, the first shielding layer covering at least the side of the dimming element near the lower edge of the laminated glass.

3. The laminated glass as described in claim 1, characterized in that, The length of the laminated glass is between 1300 mm and 1900 mm in the direction extending from the lower edge to the upper edge.

4. The laminated glass as described in claim 1, characterized in that, The dimming element includes any one of the following: stained liquid crystal film, electrochromic film, suspended particle film, and polymer-dispersed liquid crystal film.

5. The laminated glass as described in claim 2, characterized in that, The adhesive layer includes a colored layer with a visible light transmittance of less than 50%, the colored layer at least partially covers the dimming area, and the colored layer is stacked with the dimming element.

6. The laminated glass as described in claim 5, characterized in that, The coloring layer is located in the first adhesive layer or the second adhesive layer. The coloring layer is a film layer with uniform color in all places or a gradient film layer with the color gradually lightening from the upper edge to the lower edge.

7. The laminated glass as described in claim 6, characterized in that, The coloring layer is located on the first adhesive layer, the first adhesive layer is the coloring layer, or the first adhesive layer includes a transparent film covering the visible area and a coloring layer covering the dimming area, the transparent film and the coloring layer having the same thickness; the second adhesive layer is a transparent film.

8. The laminated glass as described in claim 7, characterized in that, When the first adhesive layer includes a transparent film covering the visible area and a colored layer covering the dimming area, the first shielding layer at least covers the joint between the transparent film and the colored layer.

9. The laminated glass as described in claim 6, characterized in that, The coloring layer is located in the second adhesive layer, the first adhesive layer is a transparent film; the second adhesive layer is a gradient film layer whose color gradually lightens from the upper edge to the lower edge.

10. The laminated glass as claimed in claim 1, characterized in that, The maximum thickness difference between the wedge-shaped film and the second adhesive layer is within 0.5 mm.

11. The laminated glass as claimed in claim 1, characterized in that, The adhesive layer further includes a carrier layer for serving as a carrier of the dimming element, the carrier layer having a first notch for filling the dimming element.

12. The laminated glass as claimed in claim 11, characterized in that, The first notch is at least 30 millimeters wide from the edge of the carrier layer.

13. The laminated glass as claimed in claim 11, characterized in that, The thickness of the carrier layer is the same as the thickness of the dimming element; Alternatively, when the first adhesive layer fills the first gap, the sum of the thicknesses of the first adhesive layer and the dimming element is equal to the thickness of the carrier layer.

14. The laminated glass as claimed in claim 1, characterized in that, The laminated glass further includes a second shielding layer, which is disposed on the inner or outer surface of the inner glass plate, and the second shielding layer at least covers the side of the dimming element near the lower edge of the laminated glass.

15. A vehicle, characterized in that, Includes the laminated glass as described in any one of claims 1 to 14.

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