Laminated glass, method of manufacturing laminated glass, panoramic front windshield, and vehicle

Abstract

The application discloses a kind of laminated glass, laminated glass manufacturing method, panoramic windshield and vehicle, the laminated glass includes: first glass plate and second glass plate;First functional film, cover the integrated film structure of light-adjusting area in upper portion and visual area in lower portion of laminated glass, and first functional film is attached to the inner surface of first glass plate;Second functional film, cover the integrated film structure or splicing film structure of light-adjusting area in upper portion and visual area in lower portion of laminated glass, and second functional film is attached to the inner surface of second glass plate;Third functional film, third functional film is clamped between first functional film and second functional film, and third functional film is located in the visual area of laminated glass;Functional component, functional component is clamped between first functional film and second functional film, and functional component is located in the light-adjusting area of laminated glass, functional component and third functional film are spliced at the position where light-adjusting area and the visual area meet.

Description

Technical Field

[0001] This invention relates to a type of glass, and more particularly, to a laminated glass, a method for manufacturing laminated glass, a panoramic windshield, and a vehicle. Background Technology

[0002] Currently, automotive windshield multi-layer functional film composite (heat insulation film, dimming film, etc.) splicing products have many seams, high process difficulty, and many problems (bubbles, functional film layer delamination, delamination, and unqualified impact test results at the splicing points, etc.). At the same time, the multi-layer film splicing results in extremely low production efficiency.

[0003] Specifically, this type of windshield is made of multiple PVB (polyvinyl butyral) films spliced ​​together, which is difficult to handle. The overlapping gaps are prone to air bubbles and gas intrusion into the functional film layers, causing defects such as delamination or separation of the functional film. At the same time, if the glass overlaps or the PVB stacking occurs during the handling process, it can cause the glass to break. Air bubbles are extremely easy to form in the gaps between the PVB splicing layers in contact with the glass surface during processing. The product's mechanical impact poses a significant risk, and it is prone to breakage at the splicing points.

[0004] This section is intended to provide background or context for the embodiments of the invention set forth in the claims. The description herein is not an admission that it is prior art simply because it is included in this section. Summary of the Invention

[0005] The purpose of this invention is to provide a laminated glass, a method for manufacturing laminated glass, a panoramic windshield, and a vehicle, in order to solve the technical problems existing in current glass panel structures.

[0006] This invention provides a laminated glass, comprising:

[0007] First glass plate and second glass plate;

[0008] The first functional film is an integrated molded film structure covering the dimming area on the upper part of the laminated glass and the visible area on the lower part of the laminated glass, and the first functional film is attached to the inner surface of the first glass plate.

[0009] The second functional film is an integrated molded film structure or spliced ​​film structure that covers the dimming area on the upper part of the laminated glass and the visible area on the lower part of the laminated glass, and the second functional film is attached to the inner surface of the second glass plate.

[0010] A third functional film is sandwiched between the first functional film and the second functional film, and the third functional film is located in the visible area of ​​the laminated glass.

[0011] A functional component is sandwiched between the first functional film and the second functional film, and the functional component is located in the dimming area of ​​the laminated glass. The functional component and the third functional film are spliced ​​together at the junction of the dimming area and the visible area.

[0012] In some embodiments, when the second functional film is a spliced ​​film structure, the second functional film includes a first sub-functional film and a second sub-functional film. The first sub-functional film is sandwiched between the third functional film and the second glass plate, and the second sub-functional film is sandwiched between the functional component and the second glass plate. The first sub-functional film and the second sub-functional film are spliced ​​together at the position where the dimming area and the visible area meet.

[0013] In some embodiments, the functional component is a functional film stack formed by sequentially stacking at least two functional film layers; or the functional component is a single functional film layer.

[0014] In some embodiments, when the functional component is a functional film stack formed by stacking at least two functional film layers in sequence, each functional film layer and the third functional film are spliced ​​together to form a splice seam, and adjacent splice seams are staggered with each other.

[0015] In some embodiments, when the second functional membrane is a spliced ​​membrane structure, the splicing seam formed by the functional membrane layer that is attached to the second functional membrane and the third functional membrane in the functional membrane stack is misaligned with the splicing seam in the spliced ​​membrane structure.

[0016] In some embodiments, when the functional component is a functional membrane layer and the second functional membrane is a spliced ​​membrane structure, the splice seam formed by splicing the functional component and the third functional membrane is misaligned with the splice seam in the spliced ​​membrane structure.

[0017] In some embodiments, the distance between two adjacent seams is staggered by 2mm to 15mm.

[0018] In some embodiments, for each functional membrane layer in the functional membrane stack, the width of the seam between the functional membrane layer and the third functional membrane is greater than or equal to 2 mm.

[0019] In some embodiments, the first functional membrane is a transparent membrane or a colored gradient membrane; and / or

[0020] The second functional membrane is an integrally molded transparent membrane or a colored gradient membrane.

[0021] In some embodiments, the third functional diaphragm is a sound-insulating diaphragm or a transparent diaphragm.

[0022] In some embodiments, the functional film stack includes at least one of the following functional films: a dimming film, a colored film, and a heat-insulating film.

[0023] In some embodiments, the first functional membrane is a transparent membrane; the second functional membrane is a spliced ​​membrane structure formed by splicing the first sub-functional membrane and the second sub-functional membrane, wherein the first sub-functional membrane is a transparent membrane and the second sub-functional membrane is a colored membrane; the third functional membrane is a transparent membrane sandwiched between the first sub-functional membrane and the first functional membrane; the functional component is a dimming film sandwiched between the second sub-functional membrane and the first functional membrane.

[0024] In some embodiments, the first functional membrane is a transparent membrane; the second functional membrane is a spliced ​​membrane structure formed by splicing the first sub-functional membrane and the second sub-functional membrane, wherein the first sub-functional membrane is a transparent membrane and the second sub-functional membrane is a colored membrane; the third functional membrane is a sound-insulating membrane, which is sandwiched between the first functional membrane and the first sub-functional membrane; the functional component includes a heat-insulating membrane, a transparent membrane, and a dimming membrane, wherein the heat-insulating membrane is sandwiched between the first functional membrane and the transparent membrane, and the dimming membrane is sandwiched between the transparent membrane and the second sub-functional membrane.

[0025] In some embodiments, the first functional membrane is a transparent membrane; the second functional membrane is an integrally formed colored gradient membrane; the third functional membrane is a sound-insulating membrane; the functional components include a heat-insulating membrane, a transparent membrane, and a dimming membrane, wherein the heat-insulating membrane is sandwiched between the first functional membrane and the transparent membrane, and the dimming membrane is sandwiched between the transparent membrane and the second functional membrane.

[0026] In some embodiments, the first functional membrane is a transparent membrane; the second functional membrane is an integrally formed transparent membrane; the third functional membrane is a sound-insulating membrane; the functional components include a heat-insulating membrane, a colored membrane, and a dimming membrane, wherein the heat-insulating membrane is sandwiched between the first functional membrane and the colored membrane, and the dimming membrane is sandwiched between the colored membrane and the second functional membrane.

[0027] In some embodiments, the first functional membrane is a transparent membrane; the second functional membrane is an integrally formed colored gradient sound-insulating membrane; the third functional membrane is a transparent membrane; the functional components include a heat-insulating membrane, a transparent membrane, and a dimming membrane, wherein the heat-insulating membrane is sandwiched between the first functional membrane and the transparent membrane, and the dimming membrane is sandwiched between the transparent membrane and the second functional membrane.

[0028] In some embodiments, heating wires are arranged in the visible area of ​​the laminated glass.

[0029] This invention also provides a method for manufacturing laminated glass, the method comprising:

[0030] S1. Provide a first glass plate;

[0031] S2. Place a first functional film above the first glass plate and position the first functional film so that the first functional film covers the dimming area above the laminated glass and the visible area below the laminated glass, wherein the first functional film has an integrated molding film structure.

[0032] S3. Above the first functional film, a third functional film is placed in the visible area and positioned. A functional component is placed in the dimming area and positioned, such that the functional component and the third functional film are spliced ​​together at the junction of the dimming area and the visible area.

[0033] S4. Place a second functional film above the third functional film and the functional component, such that the second functional film covers the dimming area above the laminated glass and the visible area below the laminated glass, wherein the second functional film is an integrally formed film structure or a spliced ​​film structure.

[0034] S5. Provide a second glass plate, place it above the second functional membrane, and align the second glass plate based on the first glass plate;

[0035] S6. The first glass plate, the first functional film, the second functional film, the third functional film, the functional components, and the second glass plate are laminated together to form a laminated glass.

[0036] In some embodiments, steps S2 to S4 are replaced by steps (1) to (5):

[0037] (1) A first functional film is placed on a supporting substrate, wherein the first functional film is an integrally formed film structure, and the first functional film can cover the dimming area above the laminated glass and the visible area below the laminated glass.

[0038] (2) Above the first functional film, a third functional film is placed in the visible area and the third functional film is positioned. A functional component is placed in the dimming area and the functional component is positioned, so that the functional component and the third functional film are spliced ​​together at the position where the dimming area and the visible area meet.

[0039] (3) A second functional membrane is placed above the functional component and the third functional membrane, such that the second functional membrane covers the functional component and the third functional membrane, wherein the second functional membrane is an integrally formed membrane structure.

[0040] (4) Remove the supporting substrate and fix the first functional membrane, the second functional membrane, the third functional membrane and the functional components into an integral structure to form an integral membrane;

[0041] (5) Place the integrated film on top of the first glass plate and position the integrated film.

[0042] In some embodiments, the functional component is a functional film stack formed by sequentially stacking at least two functional film layers;

[0043] Above the first functional film, a functional component is placed in the dimming area and positioned such that the functional component and the third functional film are joined at the junction of the dimming area and the visible area, including:

[0044] Above the first functional film, in the dimming area, at least one of the functional film layers is spliced ​​with the third functional film layer and the functional film layer is positioned each time, until all the functional film layers are spliced ​​with the third functional film layer and the positioning is completed, forming the functional component spliced ​​with the third functional film layer at the position where the dimming area and the visible area meet.

[0045] In some embodiments, when the second functional membrane is an integrally formed membrane structure, the total number of times each functional membrane layer is spliced ​​with the third functional membrane is less than or equal to 3 times.

[0046] When the second functional membrane is a spliced ​​membrane structure, the total number of times each functional membrane layer is spliced ​​with the third functional membrane is less than or equal to 2.

[0047] In some embodiments, each of the functional membrane layers is spliced ​​with the third functional membrane to form a splice seam, and adjacent splice seams are staggered.

[0048] In some embodiments, when the second functional membrane is a spliced ​​membrane structure, the splicing seam formed by the functional membrane layer that is attached to the second functional membrane and the third functional membrane in the functional membrane stack is misaligned with the splicing seam in the spliced ​​membrane structure.

[0049] In some embodiments, when the functional component is a functional membrane layer and the second functional membrane is a spliced ​​membrane structure, the splice seam formed by splicing the functional component and the third functional membrane is misaligned with the splice seam in the spliced ​​membrane structure.

[0050] In some embodiments, when the second functional membrane is a spliced ​​membrane structure, the second functional membrane includes a first sub-functional membrane and a second sub-functional membrane;

[0051] A second functional film is placed above the third functional film and the functional component, such that the second functional film covers the dimming area at the top of the laminated glass and the visible area at the bottom of the laminated glass, including:

[0052] A first sub-functional film is placed and positioned above the third functional film, and a second sub-functional film is placed and positioned above the functional component, such that the first sub-functional film and the second functional film are spliced ​​together at the position where the dimming area and the visible area meet.

[0053] This invention also provides a panoramic windshield, which includes the laminated glass described in any of the above embodiments.

[0054] This invention also provides a means of transportation, which includes the laminated glass described in any of the above embodiments.

[0055] The laminated glass, laminated glass manufacturing method, panoramic windshield, and vehicle provided by the embodiments of the present invention adopt an integrated molding film structure for the first functional film that is bonded to the inner surface of the first glass plate and / or the second functional film that is bonded to the inner surface of the second glass plate. This reduces the splicing operation of the functional films bonded to the glass surface. In this way, the operation requirements for the splicing seams of other splicing film layers are lower, and the splicing operation in the entire laminated glass production process is reduced, which can improve production efficiency, reduce the risk of bubbles and functional film delamination, effectively improve product reliability, and meet the mechanical impact test (human head model impact) of the splicing seam, especially in the use of automotive windshields. Attached Figure Description

[0056] To more clearly illustrate the technical solutions in the embodiments of the present invention, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0057] Figure 1a and Figure 1bThese are exploded cross-sectional diagrams of a laminated glass structure provided in an embodiment of the present invention.

[0058] Figure 2a This is a schematic diagram of a cross-sectional structure of a type of laminated glass with an existing structure.

[0059] Figure 2b This is a cross-sectional structural diagram of a laminated glass provided in an embodiment of the present invention.

[0060] Figure 2c This is a cross-sectional structural diagram of a laminated glass provided in an embodiment of the present invention.

[0061] Figure 2d This is a cross-sectional structural diagram of a laminated glass provided in an embodiment of the present invention.

[0062] Figure 3a This is a schematic diagram of a cross-sectional structure of a type of laminated glass with an existing structure.

[0063] Figure 3b and Figure 3c These are schematic cross-sectional views of a laminated glass provided in an embodiment of the present invention.

[0064] Figures 4a to 4e These are front views of a second functional membrane provided in an embodiment of the present invention.

[0065] Figure 5 This is a front view schematic diagram of a laminated glass provided in an embodiment of the present invention.

[0066] Figure 6 This is a schematic flowchart illustrating a method for manufacturing laminated glass according to an embodiment of the present invention. Detailed Implementation

[0067] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0068] Specific embodiments of the invention are disclosed in detail with reference to the following description and accompanying drawings, indicating how the principles of the invention can be employed. It should be understood that the embodiments of the invention are not therefore limited in scope. Within the spirit and scope of the appended claims, embodiments of the invention include many changes, modifications, and equivalents.

[0069] Features described and / or illustrated for one embodiment may be used in the same or similar manner in one or more other embodiments, combined with features in other embodiments, or substituted for features in other embodiments.

[0070] It should be emphasized that the term "including / comprises" as used herein refers to the presence of a feature, whole, step, or component, but does not exclude the presence or addition of one or more other features, wholes, steps, or components.

[0071] In order to solve at least one of the aforementioned problems in the prior art, in a first aspect, the present invention provides a laminated glass, such as... Figure 1a / Figure 1b As shown, the laminated glass 100 has a dimming area 101 and a viewing area 102, as... Figure 5 As shown, when the laminated glass 100 is in use, the dimming area 101 is located at the upper part of the laminated glass 100, and the viewing area 102 is located at the lower part of the laminated glass 100. Figure 1a / Figure 1b / Figure 2b / Figure 2c / Figure 2d / Figure 3b (The dimming area and visible area are not shown in some diagrams; please refer to the diagrams below.) Figure 1a / Figure 1b As shown in the figure, the laminated glass 100 provided by the present invention includes:

[0072] First glass plate 10 and second glass plate 20;

[0073] The first functional film 30 is an integrated molded film structure covering the dimming area 101 on the upper part of the laminated glass 100 and the visible area 102 on the lower part of the laminated glass 100, and the first functional film 30 is attached to the inner surface 10a of the first glass plate 10.

[0074] The second functional film 40 is an integrated molded film structure or spliced ​​film structure that covers the dimming area 101 on the upper part of the laminated glass 100 and the visible area 102 on the lower part of the laminated glass 100, and the second functional film 40 is attached to the inner surface 20a of the second glass plate 20.

[0075] The third functional film 50 is sandwiched between the first functional film 30 and the second functional film 40, and the third functional film 50 is located in the visible area 102 of the laminated glass 100.

[0076] Functional component 60 is sandwiched between the first functional film 30 and the second functional film 40, and the functional component 60 is located in the dimming area 101 of the laminated glass 100. The functional component 60 and the third functional film 50 are spliced ​​together at the position where the dimming area 101 and the visible area 102 meet.

[0077] Specifically, the first glass plate 10 can be an outer glass plate (i.e., the glass plate facing outwards when the laminated glass 100 is used), and the second glass plate 20 can be an inner glass plate (i.e., the glass plate facing inwards when the laminated glass 100 is used); or, the first glass plate 10 is an inner glass plate, and the second glass plate 20 is an outer glass plate.

[0078] The laminated glass 100 provided by the present invention has at least two interlayers between the first glass plate 10 and the second glass plate 20. One interlayer is an integrated molded film structure that is bonded to the inner surface 10a of the first glass plate 10 and covers the dimming area 101 and the viewing area 102 of the laminated glass 100, or an integrated molded film structure that is bonded to the inner surface 20a of the second glass plate 20 and covers the dimming area 101 and the viewing area 102 of the laminated glass 100. The other interlayer is a spliced ​​film layer, for example... Figure 1b The spliced ​​membrane layer shown is composed of a third functional membrane 50 and a functional component 60.

[0079] The laminated glass 100 provided in this embodiment of the invention adopts an integrated molding film structure for the first functional film 30 that is bonded to the inner surface 10a of the first glass plate 10 and / or the second functional film 40 that is bonded to the inner surface 20a of the second glass plate 20. This reduces the splicing operation of the functional films bonded to the glass surface. As a result, the operation requirements for the splicing seams of other splicing film layers are lower, and the splicing operation in the entire laminated glass production process is reduced, which can improve production efficiency. It can also reduce the risk of bubbles and functional film delamination and delamination, effectively improving product reliability. At the same time, it meets the mechanical impact test (human head model impact) of the splicing seam, especially in the use of automotive windshields.

[0080] like Figure 1a / Figure 1b As shown, in some embodiments, when the second functional membrane 40 is a spliced ​​membrane structure, the second functional membrane 40 includes a first sub-functional membrane 41 and a second sub-functional membrane 42. The first sub-functional membrane 41 is sandwiched between the third functional membrane 50 and the second glass plate 20, and the second sub-functional membrane 42 is sandwiched between the functional component 60 and the second glass plate 20. The first sub-functional membrane 41 and the second sub-functional membrane 42 are spliced ​​together at the position where the dimming area 101 and the visible area 102 meet.

[0081] like Figure 1a / Figure 1b As shown, in some embodiments, the functional component 60 is a functional film layer. This functional film layer may be a dimming film.

[0082] In some embodiments, the functional component 60 is a functional film stack formed by sequentially stacking at least two functional film layers. For example, such as Figure 2b / Figure 2c / Figure 3b As shown, the functional component 60 is a functional film stack formed by sequentially stacking functional film layers 61, 62, and 63; as Figure 2d As shown, the functional component 60 is a functional film stack formed by sequentially stacking functional film layers 61, 64 and 63.

[0083] In some embodiments, when the functional component 60 is a functional film stack formed by sequentially stacking at least two functional film layers, each functional film layer and the third functional film 50 are joined to form a seam, and adjacent seams are staggered to reduce gas accumulation at the seam. For example, such as Figure 2b As shown, functional membrane layer 61 and the third functional membrane 50 are spliced ​​together to form a splicing seam 70a, functional membrane layer 62 and the third functional membrane 50 are spliced ​​together to form a splicing seam 70b, and functional membrane layer 63 and the third functional membrane 50 are spliced ​​together to form a splicing seam 70c. Splicing seams 70a and 70b are staggered, and splicing seams 70b and 70c are also staggered.

[0084] like Figure 2b As shown, in some embodiments, when the second functional membrane 40 is a spliced ​​membrane structure, the splicing seam 70c formed by the functional membrane layer 63 that is attached to the second functional membrane 40 and the third functional membrane 50 in the functional membrane stack is misaligned with the splicing seam 40a in the spliced ​​membrane structure. This reduces the accumulation of gas between the splicing seams 70c and 40a.

[0085] like Figure 1b As shown, in some embodiments, when the functional component 60 is a functional membrane layer and the second functional membrane 40 is a spliced ​​membrane structure, the splice seam 70d formed by splicing the functional component 60 and the third functional membrane 50 is misaligned with the splice seam 40a in the spliced ​​membrane structure. This reduces the accumulation of gas between the splice seams 70d and 40a.

[0086] In some embodiments, the distance between any two adjacent seams is staggered by 2mm to 15mm, which facilitates the splicing operation. For example, such as Figure 1bAs shown, the distance between splice seam 70d and splice seam 40a is staggered by 2mm to 15mm; Figure 2b As shown, the distances between splice seams 70a and 70b, splice seams 70b and 70c, and splice seams 70c and 40a are 2mm to 15mm, respectively.

[0087] In some embodiments, for each functional film layer in the functional film stack, the width of the seam between the functional film layer and the third functional film 50 can be greater than or equal to 2 mm, and when the thickness of the functional film layer is greater than 0.2 mm, the seam can be filled with a patching film of the same thickness as the functional film layer; if the thickness of the functional film layer is less than or equal to 0.2 mm, then no patching film is needed, i.e., no patching is required. For example, such as Figure 2b As shown, the width of the splicing seam 70c between the functional membrane layer 63 and the third functional membrane 50 is greater than or equal to 2 mm, and the thickness of the functional membrane layer 63 is greater than 0.2 mm. The splicing seam 70c is filled with a patching membrane 80 of the same thickness as the functional membrane layer 63.

[0088] In some embodiments, the first functional membrane 30 is a transparent membrane or a colored gradient membrane; and / or the second functional membrane 40 is an integrally formed transparent membrane or a colored gradient membrane. For example, such as Figure 2c / Figure 2d / Figure 3b As shown, the first functional membrane 30 can be a transparent membrane, such as... Figure 2c As shown, the second functional membrane 40 can be a colored gradient membrane, such as... Figure 2d As shown, the second functional membrane 40 can be a transparent membrane, such as... Figure 3b As shown, the second functional diaphragm 40 can further be a gradient sound-insulating diaphragm.

[0089] In some embodiments, the third functional diaphragm 50 may be a sound-insulating diaphragm or a transparent diaphragm. For example... Figure 2b / Figure 2c / Figure 2d As shown, the third functional diaphragm 50 can be a sound-insulating diaphragm, such as... Figure 1a / Figure 1b / Figure 3b As shown, the third functional membrane 50 can be a transparent membrane.

[0090] In some embodiments, when the functional component 60 is a functional film stack, the functional film stack includes at least one of the following functional films: a dimming film, a colored film, and a heat-insulating film.

[0091] In some embodiments, the laminated glass 100 can be curved glass, such as a curved windshield on a car. When the laminated glass 100 is curved glass, and the second functional membrane 40 is a spliced ​​membrane structure formed by splicing the first sub-functional membrane 41 and the second sub-functional membrane 42, such as... Figure 4a As shown, the shape of the seam 40a between the first sub-functional diaphragm 41 and the second sub-functional diaphragm 42 can be an arc-shaped seam, which can be parallel to the upper / lower edge of the laminated glass 100.

[0092] like Figure 4b , Figure 4c , Figure 4d and Figure 4e As shown, in some embodiments, one or more "L"-shaped or "W"-shaped interlocking teeth 41a may be provided at the end and / or interior of the upper edge of the first sub-functional diaphragm 41, and corresponding interlocking teeth 42a may be provided at the corresponding position of the lower edge of the second sub-functional diaphragm 42. After the first sub-functional diaphragm 41 and the second sub-functional diaphragm 42 are spliced ​​together, the interlocking teeth 41a and the interlocking teeth 42a engage. This facilitates the splicing and positioning operation between the first sub-functional diaphragm 41 and the second sub-functional diaphragm 42, and reduces the operational requirements for the splicing seam 40a.

[0093] Based on the same principle, it can be... Figure 4a / Figure 4b / Figure 4c / Figure 4d / Figure 4e The splicing structure of the second functional diaphragm 40 extends into the splicing structure between the third functional diaphragm 50 and the functional component 60, which will not be described in detail here.

[0094] In any of the above embodiments, the first functional membrane 30, the second functional membrane 40, the third functional membrane 50 and / or the edge-patching membrane 80 may specifically be functional membranes made of PVB material; the colored membranes and / or transparent membranes in the functional components 60 may also be functional membranes made of PVB material, and the heat-insulating membrane may be a functional membrane made of PET (polyethylene terephthalate).

[0095] Based on the above inventive concept, the laminated glass provided by the present invention will be described in detail below through some specific embodiments.

[0096] Example 1

[0097] like Figure 1a / Figure 1bAs shown, the first functional membrane 30 is a transparent membrane; the second functional membrane 40 is a spliced ​​membrane structure formed by splicing the first sub-functional membrane 41 and the second sub-functional membrane 42, wherein the first sub-functional membrane 41 is a transparent membrane and the second sub-functional membrane 42 is a colored membrane; the third functional membrane 50 is a transparent membrane, which is sandwiched between the first sub-functional membrane 41 and the first functional membrane 30; the functional component 60 is a dimming membrane, which is sandwiched between the second sub-functional membrane 42 and the first functional membrane 30.

[0098] Specifically, the first functional film 30 can be a 0.76mm thick C PVB (clear PVB), the first sub-functional film 41 can be a 0.38mm thick C PVB, the second sub-functional film 42 can be a 0.38mm thick Y PVB (colored PVB film), the third functional film 50 can be a 0.38mm thick C PVB, and the functional component 60 can be a 0.38mm thick dimming film.

[0099] Compared to Figure 1a 100 laminated glass in the middle, Figure 1b The splicing seams 40a and 70d of the laminated glass 100 are staggered; specifically, compared to Figure 1a , Figure 1b The first sub-functional membrane 41 is offset towards the second sub-functional membrane 42. Alternatively, the second sub-functional membrane 42 can be offset towards the first sub-functional membrane 41, so that the splicing seam 40a and splicing seam 70d formed between the first sub-functional membrane 41 and the second sub-functional membrane 42 are offset from each other.

[0100] Example 2

[0101] Figure 2a This is a structural schematic diagram of a laminated glass 200 with an existing structure. Figure 2b Based on the inventive concept of this invention Figure 2a A schematic diagram of the structure of the laminated glass 100 obtained after improving the laminated glass 200.

[0102] like Figure 2aAs shown, the existing structure of the laminated glass 200 includes a 2mm thick transparent first glass plate 1, a 0.76mm thick sound-insulating CPVB film (transparent PVB film) 3, a 0.76mm thick CPVB film 4, a 0.38mm thick CPVB film 5, a heat-insulating PET (polyethylene terephthalate) film 6, a 0.38mm thick CPVB film 7, a 0.38mm thick black dimming film 8, a 0.38mm thick Y PVB film (colored PVB film) 9, and a 2mm thick green second glass plate 2.

[0103] like Figure 2b As shown, in the laminated glass 100 with the novel structure provided by the present invention, the first functional film 30 can specifically be a 0.38mm thick CPVB film, the second functional film 40 is a spliced ​​film structure formed by splicing the first sub-functional film 41 and the second sub-functional film 42, the first sub-functional film 41 can specifically be a 0.38mm thick CPVB film, the second sub-functional film 42 can specifically be a 0.38mm thick Y CPVB film, the third functional film 50 can specifically be a 0.76mm thick sound-insulating CPVB film, and the third functional film 50 is sandwiched between the first functional film 30 and the first sub-functional film 41; the functional film layer 61 in the functional component 60 can specifically be a heat-insulating PET film, the functional film layer 62 can specifically be a 0.38mm thick CPVB film, and the functional film layer 63 can specifically be a 0.38mm thick black dimming film.

[0104] Compared to Figure 2a 200 laminated glass in the middle, Figure 2b In the laminated glass 100, the first functional film 30, which is attached to the inner surface of the first glass plate 10, is an integrated molded film structure that covers the dimming area 101 and the viewing area 102, reducing the number of splicing film layers, and the adjacent splicing seams are also staggered to reduce the accumulation of gas in the splicing seam gap.

[0105] Example 3

[0106] Figure 2c Based on the inventive concept of this invention Figure 2a A schematic diagram of the structure of the laminated glass 100 obtained after improving the laminated glass 200.

[0107] like Figure 2cAs shown, in the laminated glass 100 with the novel structure provided by the present invention, the first functional film 30 can specifically be a 0.38mm thick CPVB film, the second functional film 40 can specifically be an integrally formed 0.38mm thick gradient Y CPVB film, and the third functional film 50 can specifically be a 0.76mm thick sound-insulating CPVB film; the functional component 60 includes functional film layers 61, 62, and 63, with functional film layer 61 sandwiched between the first functional film 30 and the functional film layer 62, and functional film layer 63 sandwiched between functional film layer 62 and the second functional film 40. Functional film layer 61 can specifically be a heat-insulating PET film, functional film layer 62 can specifically be a 0.38mm thick CPVB film, and functional film layer 63 can specifically be a 0.38mm thick black dimming film.

[0108] Compared to Figure 2a 200 laminated glass in the middle, Figure 2c The first functional film 30, which is attached to the inner surface of the first glass plate 10, is an integrated functional film structure covering the dimming area 101 and the viewing area 102. The second functional film 40, which is attached to the inner surface of the second glass plate 20, is also an integrated functional film structure covering the dimming area 101 and the viewing area 102. This reduces the number of splicing film layers in the laminated glass 100, and the adjacent splicing seams are staggered, reducing the accumulation of gas in the splicing seam gaps.

[0109] Example 4

[0110] Figure 2d Based on the inventive concept of this invention Figure 2a A schematic diagram of the structure of the laminated glass 100 obtained after improving the laminated glass 200.

[0111] Figure 2d The laminated glass 100 shown is Figure 2c The structure of the laminated glass 100 shown is similar, the difference being: Figure 2d The functional film 64 sandwiched between functional film layers 61 and 63 in the laminated glass 100 shown is a Y PVB film. Figure 2d The second functional membrane 40 is a CPVB membrane, wherein the thickness of the Y CPVB membrane can be 0.38 mm, and the thickness of the CPVB membrane can specifically be 0.38 mm.

[0112] Figure 2d The technical effects of the laminated glass 100 shown are... Figure 2c The technical effect of the laminated glass 100 shown is similar, and will not be described in detail here.

[0113] Example 5

[0114] Figure 3a This is a structural schematic diagram of a laminated glass 200 with an existing structure. Figure 3b Based on the inventive concept of this invention Figure 3a A schematic diagram of the structure of the laminated glass 100 obtained after improving the laminated glass 200.

[0115] like Figure 3a As shown, the existing structure of the laminated glass 200 includes a 2mm thick clear first glass plate 1, a 0.76mm thick sound-insulating CPVB film 3, a 0.76mm thick gradient sound-insulating PVB film 4, a 0.38mm thick CPVB film 5, a heat-insulating PET film 6, a 0.38mm thick CPVB film 7, a 0.14mm thick black dimming film 8, and a 2mm thick green second glass plate 2.

[0116] like Figure 3b As shown, in the laminated glass 100 with the novel structure provided by the present invention, the first functional film 30 can specifically be a 0.38mm thick CPVB film, the second functional film 40 is an integrally formed gradient sound-insulating PVB film with a thickness of 0.76mm; the third functional film 50 can specifically be a 0.38mm thick CPVB film, the functional component 60 includes functional film layers 61, 62, and 63, the functional film layer 61 is sandwiched between the first functional film 30 and the functional film layer 62, the functional film layer 63 is sandwiched between the functional film layer 62 and the second functional film 40, the functional film layer 61 can specifically be a heat-insulating PET film, the functional film layer 62 can specifically be a 0.38mm thick CPVB film, and the functional film layer 63 can specifically be a 0.14mm thick black dimming film.

[0117] Compared to Figure 3a 200 laminated glass in the middle, Figure 3b In the laminated glass 100, the first functional film 30, which is attached to the inner surface of the first glass plate 10, is an integrally formed functional film structure covering the dimming area 101 and the viewing area 102. The second functional film 40, which is attached to the inner surface of the second glass plate 20, is also an integrally formed functional film structure covering the dimming area 101 and the viewing area 102. This reduces the number of splicing film layers in the laminated glass 100, and the adjacent splicing seams are staggered, reducing the accumulation of gas in the splicing seam gaps.

[0118] Example 6

[0119] Figure 3c This is a schematic diagram of the structure of a laminated glass 100 provided by the present invention. Figure 3c The laminated glass 100 shown is Figure 3bThe structure of the laminated glass 100 shown is similar, the difference being: Figure 3c The visible area 102 of the laminated glass 100 shown is provided with a heating wire 90, which is disposed between the second functional diaphragm 40 and the second glass plate 20. In another embodiment, the heating wire 90 may also be disposed between the first functional diaphragm 30 and the first glass plate 10 (not shown in the figure).

[0120] Based on the same inventive concept, this embodiment of the invention also provides a method for manufacturing laminated glass. Since this method is used to generate the laminated glass described in the above embodiments, the technical effects of some steps in this method are similar to those described in the above embodiments, and the repeated parts will not be described again.

[0121] like Figure 6 As shown, the present invention provides a method for manufacturing laminated glass, comprising:

[0122] S1. Provide a first glass plate;

[0123] S2. Place a first functional film above the first glass plate and position the first functional film so that the first functional film covers the dimming area above the laminated glass and the visible area below the laminated glass, wherein the first functional film has an integrated molding film structure.

[0124] S3. Above the first functional film, a third functional film is placed in the visible area and positioned. A functional component is placed in the dimming area and positioned, such that the functional component and the third functional film are spliced ​​together at the junction of the dimming area and the visible area.

[0125] S4. Place a second functional film above the third functional film and the functional component, such that the second functional film covers the dimming area above the laminated glass and the visible area below the laminated glass, wherein the second functional film is an integrally formed film structure or a spliced ​​film structure.

[0126] S5. Provide a second glass plate, place it above the second functional membrane, and align the second glass plate based on the first glass plate;

[0127] S6. The first glass plate, the first functional film, the second functional film, the third functional film, the functional components, and the second glass plate are laminated together to form a laminated glass.

[0128] In some embodiments, steps S2 to S4 above are replaced by steps (1) to (5):

[0129] (1) A first functional film is placed on a supporting substrate, wherein the first functional film is an integrally formed film structure, and the first functional film can cover the dimming area above the laminated glass and the visible area below the laminated glass.

[0130] (2) Above the first functional film, a third functional film is placed in the visible area and the third functional film is positioned. A functional component is placed in the dimming area and the functional component is positioned, so that the functional component and the third functional film are spliced ​​together at the position where the dimming area and the visible area meet.

[0131] (3) A second functional membrane is placed above the functional component and the third functional membrane, such that the second functional membrane covers the functional component and the third functional membrane, wherein the second functional membrane is an integrally formed membrane structure.

[0132] (4) Remove the supporting substrate and fix the first functional membrane, the second functional membrane, the third functional membrane and the functional components into an integral structure to form an integral membrane;

[0133] (5) Place the integrated film on top of the first glass plate and position the integrated film.

[0134] In some embodiments, the functional component is a functional film stack formed by sequentially stacking at least two functional film layers; step S2 includes: above the first functional film, in the dimming area, splicing at least one of the functional film layers with the third functional film and positioning the functional film layers each time, until all the functional film layers are spliced ​​with the third functional film and the positioning is completed, forming the functional component spliced ​​with the third functional film at the position where the dimming area and the visible area meet.

[0135] In some embodiments, when the second functional film is an integrally formed film structure, the total number of times each functional film layer is spliced ​​with the third functional film is less than or equal to 3 times; when the second functional film is a spliced ​​film structure, the total number of times each functional film layer is spliced ​​with the third functional film is less than or equal to 2 times. This reduces splicing operations in the entire laminated glass production process, improves production efficiency, and also reduces the risk of bubbles, functional film delamination, and separation, significantly improving product reliability.

[0136] In some embodiments, each of the functional membrane layers is spliced ​​with the third functional membrane to form a splice seam, and adjacent splice seams are staggered.

[0137] In some embodiments, when the second functional membrane is a spliced ​​membrane structure, the splicing seam formed by the functional membrane layer that is attached to the second functional membrane and the third functional membrane in the functional membrane stack is misaligned with the splicing seam in the spliced ​​membrane structure.

[0138] In some embodiments, when the functional component is a functional membrane layer and the second functional membrane is a spliced ​​membrane structure, the splice seam formed by splicing the functional component and the third functional membrane is misaligned with the splice seam in the spliced ​​membrane structure.

[0139] In some embodiments, the distance between two adjacent seams is staggered by 2mm to 15mm.

[0140] In some embodiments, after at least one of the functional membrane layers is spliced ​​with the third functional membrane sheet, if the width of the splice seam between the functional membrane layer and the third functional membrane sheet is greater than or equal to 2 mm and the thickness of the functional membrane layer is greater than 0.2 mm, then a patching membrane of the same thickness as the functional membrane layer is filled into the splice seam, so that the gap between the patching membrane sheet and the functional membrane layer is less than 5 mm.

[0141] In some embodiments, when the second functional film is a spliced ​​film structure, the second functional film includes a first sub-functional film and a second sub-functional film; the above step S3 includes: placing the first sub-functional film on top of the third functional film and positioning it, placing the second sub-functional film on top of the functional component and positioning it, such that the first sub-functional film and the second functional film are spliced ​​together at the position where the dimming area and the visible area meet.

[0142] To better understand the laminated glass manufacturing method provided by the present invention, the following detailed description of the laminated glass manufacturing method provided by the present invention is provided through some specific embodiments.

[0143] Example 7

[0144] by Figure 2d The laminated glass 100 shown (a panoramic windshield with a dimming zone, a heat-insulating PET film, and a dimming film) is used as an example to illustrate the laminated glass manufacturing method provided by the present invention in detail.

[0145] Step 1: Material Preparation

[0146] a) Functional film layer 61 (heat insulation PET film) and functional film layer 64 (Y PVB film) are pre-laminated. The laminated film is precisely cut using equipment (laser or mechanical method). The size of the Y PVB film after cutting is basically the same as that of the glass flattening diagram (considering the shrinkage of the Y PVB film, the size of the Y PVB film here can be slightly larger than the glass flattening diagram). Then, the heat insulation PET film is half-cut. The edge of the heat insulation PET film after cutting is recessed inward by more than 7mm compared to the edge of the Y PVB film after cutting. When there is a printed structure at the junction of the dimming area 101 and the visible area 102 of the laminated glass 100, the size of the printed area entered by the heat insulation PET film is ≥5mm.

[0147] b) Wash and dry the second glass plate 20 and the first glass plate 10;

[0148] c) Precise PVB preparation: The final composite film obtained in step a) above is cut more precisely so that the size of the Y PVB film is the same as that of the glass flattening diagram.

[0149] Step 2: Wafer Packaging

[0150] a) Place the first glass plate 10 (which may be the outer glass plate);

[0151] b) Place the first functional membrane (0.38mm thick CPVB membrane) 30 and position it;

[0152] c) Encapsulate the third functional membrane (0.76mm thick CPVB membrane) 50 and position it;

[0153] d) Place the pre-composite film after precision cutting and position it;

[0154] e) Position the functional film layer (0.38mm thick dimming film) 63, and fill the periphery of the dimming film with a patch film (pvb film) of the same thickness as the dimming film, with a gap between the patch film and the dimming film ≤5mm;

[0155] f) Place the second functional membrane (0.38mm thick CPVB membrane) 30 and position it;

[0156] g) Place the second glass plate 20 (which can be the inner glass plate) and align it (control the overlap difference < 1 mm);

[0157] h) Apply vacuum ring for cold extraction and initial pressure;

[0158] i) Initial pressure followed by high pressure, high pressure temperature (120~150)℃, pressure (1.0~1.2)MPa.

[0159] Steps b) to f) can be placed on a flat mold or other supporting substrate and fixed as a whole, and then placed inside the first glass plate 10 and the second glass plate 20 for encapsulation—cold drawing initial pressure and high pressure.

[0160] Example 8

[0161] by Figure 3b The laminated glass 100 shown (a panoramic windshield with a dimming zone, a heat-insulating PET film, and a dimming film) is used as an example to illustrate the laminated glass manufacturing method provided by the present invention in detail.

[0162] Step 1: Material Preparation

[0163] a) Functional film layer 61 (heat-insulating PET film) and functional film layer 64 (CPVB film) are pre-laminated. The laminated film is precisely cut using equipment (laser or mechanical method). The size of the CPVB film after cutting is basically the same as the glass flattening diagram (considering the shrinkage of the CPVB film, the size of the CPVB film here can be slightly larger than the glass flattening diagram). Then, the heat-insulating PET film is halved, and the edge of the cut heat-insulating PET film is recessed inward by more than 7mm compared to the edge of the cut CPVB film. When there is a printed structure at the junction of the dimming area 101 and the viewing area 102 of the laminated glass 100, the size of the heat-insulating PET film entering the printed area is ≥5mm.

[0164] b) Wash and dry the second glass plate 20 and the first glass plate 10;

[0165] c) Precise PVB preparation: The final composite film obtained in step a) above is cut more precisely so that the size of the CPVB film is the same as that of the glass flattening diagram.

[0166] Step 2: Wafer Packaging

[0167] a) Place the first glass plate 10 (which may be the outer glass plate);

[0168] b) Place the first functional membrane (0.38mm thick CPVB membrane) 30 and position it;

[0169] c) Encapsulate the third functional membrane (0.38mm thick CPVB membrane) 50 and position it;

[0170] d) Place the pre-composite film after precision cutting and position it;

[0171] e) Position the functional film layer (0.14mm thick dimming film) 63, and fill the periphery of the dimming film with a patch film (PVB film) of the same thickness as the dimming film, with a gap between the patch film and the dimming film ≤5mm.

[0172] f) Place the second functional diaphragm (0.76mm thick gradient sound-insulating PVB diaphragm) 30 and position it;

[0173] g) Place the second glass plate 20 (which can be the inner glass plate) and align it (control the overlap difference <1mm);

[0174] h) Apply vacuum ring for cold extraction and initial pressure;

[0175] i) Initial pressure followed by high pressure, high pressure temperature (120~150)℃, pressure (1.0~1.2)MPa.

[0176] Steps b) to f) can be placed on a flat mold or other supporting substrate and fixed as a whole, and then placed inside the first glass plate 10 and the second glass plate 20 for encapsulation—cold drawing initial pressure and high pressure.

[0177] Experiments have verified that by setting the functional film adhering to the glass surface in the laminated glass as an integrated molded functional film structure covering both the dimming and viewing areas, and by staggering the seams between adjacent splicing film layers, the problems of air bubbles in the splicing seams and delamination of the dimming film in the early stages have been completely solved. Furthermore, due to the staggered seams, the splicing area passed the human head model test (whereas the splicing area with the original non-staggered structure failed), the finished product passed the baking test, and showed no air bubbles after high-temperature storage at 90℃ for 1000 hours and 100℃ for 500 hours. It also showed no problems after 20 cycles of high and low temperatures (-40℃ / 80℃). The optimized laminated glass production efficiency has increased by more than 30%, product reliability has significantly improved, the yield rate is >95%, and air bubble problems and defects such as impurities caused by long processing times have been reduced.

[0178] Based on the same inventive concept, embodiments of the present invention also provide a panoramic windshield, which includes the laminated glass described in any of the above embodiments. This panoramic windshield has similar beneficial effects to the laminated glass, and will not be elaborated further here.

[0179] Based on the same inventive concept, embodiments of the present invention also provide a means of transportation, which includes the laminated glass described in any of the above embodiments. Since this means of transportation includes the laminated glass, it has similar beneficial effects to the laminated glass, which will not be elaborated further here.

[0180] It should be noted that, in this document, relational terms such as "first" and "second" are used merely to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element. The terms "upper," "lower," etc., indicating orientation or positional relationships based on the orientation or positional relationships shown in the accompanying drawings, are used only for the convenience of describing the invention and for simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of the invention. Unless otherwise explicitly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to fixed connections, detachable connections, or integral connections; they can refer to mechanical connections or electrical connections; they can refer to direct connections or indirect connections through an intermediate medium; and they can refer to the internal connection between two components. Those skilled in the art can understand the specific meaning of the above terms in this invention according to the specific circumstances.

[0181] The various embodiments in this specification are described in a progressive manner. Similar or identical parts between embodiments can be referred to interchangeably. Each embodiment focuses on describing the differences from other embodiments. In the description of this specification, the terms "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., refer to specific features, structures, materials, or characteristics described in connection with that embodiment or example, which are included in at least one embodiment or example of the embodiments in this specification. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described can be combined in any suitable manner in one or more embodiments or examples. Moreover, without contradiction, those skilled in the art can combine and integrate the different embodiments or examples described in this specification, as well as the features of different embodiments or examples.

[0182] Specific embodiments have been used to illustrate the principles and implementation methods of this invention. The descriptions of the embodiments above are only for the purpose of helping to understand the method and core ideas of this invention. At the same time, for those skilled in the art, there will be changes in the specific implementation methods and application scope based on the ideas of this invention. Therefore, the content of this specification should not be construed as a limitation of this invention.

Claims

1. A laminated glass, characterized in that, include: First glass plate and second glass plate; The first functional film is an integrated molded film structure covering the dimming area on the upper part of the laminated glass and the visible area on the lower part of the laminated glass, and the first functional film is attached to the inner surface of the first glass plate. The second functional film is an integrated molded film structure covering the dimming area at the top of the laminated glass and the visible area at the bottom of the laminated glass, and the second functional film is attached to the inner surface of the second glass plate. A third functional film is sandwiched between the first functional film and the second functional film, and the third functional film is located in the visible area of ​​the laminated glass. A functional component is sandwiched between the first functional film and the second functional film, and the functional component is located in the dimming area of ​​the laminated glass. The functional component and the third functional film are joined at the junction of the dimming area and the visible area; wherein, The functional component is a functional membrane stack formed by stacking at least two functional membrane layers in sequence. Each functional membrane layer and the third functional membrane are spliced ​​together to form a splice seam, and adjacent splice seams are staggered with each other.

2. The laminated glass according to claim 1, characterized in that, The distance between two adjacent seams should be staggered by 2mm to 15mm.

3. The laminated glass according to claim 1, characterized in that, For each functional membrane layer in the functional membrane stack, the width of the seam between the functional membrane layer and the third functional membrane is greater than or equal to 2 mm.

4. The laminated glass according to claim 1, characterized in that, The first functional membrane is a transparent membrane or a colored gradient membrane; and / or The second functional membrane is an integrally molded transparent membrane or a colored gradient membrane.

5. The laminated glass according to claim 1, characterized in that, The third functional diaphragm is a sound-insulating diaphragm or a transparent diaphragm.

6. The laminated glass according to claim 1, characterized in that, The functional membrane stack includes at least one of the following functional membranes: a dimming membrane, a colored membrane, and a heat-insulating membrane.

7. The laminated glass according to claim 1, characterized in that, The first functional membrane is a first transparent membrane; The second functional membrane is an integrally molded colored gradient membrane; The third functional diaphragm is a sound-insulating diaphragm; The functional components include a heat-insulating film, a second transparent film, and a dimming film. The heat-insulating film is sandwiched between the first functional film and the second transparent film, and the dimming film is sandwiched between the second transparent film and the second functional film.

8. The laminated glass according to claim 1, characterized in that, The first functional membrane is a transparent membrane; The second functional membrane is a one-piece molded transparent membrane; The third functional diaphragm is a sound-insulating diaphragm; The functional components include a heat-insulating film, a colored film, and a dimming film. The heat-insulating film is sandwiched between the first functional film and the colored film, and the dimming film is sandwiched between the colored film and the second functional film.

9. The laminated glass according to claim 1, characterized in that, The first functional membrane is a first transparent membrane; The second functional diaphragm is an integrally molded colored gradient sound insulation diaphragm; The third functional membrane is a third transparent membrane; The functional components include a heat-insulating film, a second transparent film, and a dimming film, wherein the heat-insulating film is sandwiched between the first functional film and the second transparent film, and the dimming film is sandwiched between the second transparent film and the second functional film.

10. The laminated glass according to claim 1, characterized in that, Heating wires are arranged in the visible area of ​​the laminated glass.

11. A laminated glass, characterized in that, include: First glass plate and second glass plate; The first functional film is an integrated molded film structure covering the dimming area on the upper part of the laminated glass and the visible area on the lower part of the laminated glass, and the first functional film is attached to the inner surface of the first glass plate. The second functional film is a splicing film structure that covers the dimming area at the top of the laminated glass and the visible area at the bottom of the laminated glass, and the second functional film is attached to the inner surface of the second glass plate. A third functional film is sandwiched between the first functional film and the second functional film, and the third functional film is located in the visible area of ​​the laminated glass. A functional component is sandwiched between the first functional film and the second functional film, and the functional component is located in the dimming area of ​​the laminated glass. The functional component and the third functional film are joined at the junction of the dimming area and the visible area; wherein, The second functional film includes a first sub-functional film and a second sub-functional film. The first sub-functional film is sandwiched between the third functional film and the second glass plate, and the second sub-functional film is sandwiched between the functional component and the second glass plate. The first sub-functional film and the second sub-functional film are spliced ​​together at the position where the dimming area and the visible area meet. The functional component is a functional membrane stack formed by stacking at least two functional membrane layers sequentially. Each functional membrane layer and the third functional membrane sheet are spliced ​​together to form a seam, and adjacent seams are staggered. Alternatively, the seam formed by splicing the functional membrane layer that is attached to the second functional membrane sheet and the third functional membrane sheet in the functional membrane stack is staggered from the seam in the spliced ​​membrane structure. Or, the functional component is a functional membrane layer, and the seam formed by splicing the functional component and the third functional membrane sheet is staggered from the seam in the spliced ​​membrane structure.

12. The laminated glass according to claim 11, characterized in that, The distance between two adjacent seams should be staggered by 2mm to 15mm.

13. The laminated glass according to claim 11, characterized in that, For each functional membrane layer in the functional membrane stack, the width of the seam between the functional membrane layer and the third functional membrane is greater than or equal to 2 mm.

14. The laminated glass according to claim 11, characterized in that, The third functional diaphragm is a sound-insulating diaphragm or a transparent diaphragm.

15. The laminated glass according to claim 11, characterized in that, The functional membrane stack includes at least one of the following functional membranes: a dimming membrane, a colored membrane, and a heat-insulating membrane.

16. The laminated glass according to claim 11, characterized in that, The first functional membrane is a transparent membrane; The first sub-functional membrane is a transparent membrane, and the second sub-functional membrane is a colored membrane; The third functional membrane is a transparent membrane, and the third functional membrane is sandwiched between the first sub-functional membrane and the first functional membrane; The functional component is a dimming film, which is sandwiched between the second sub-functional film and the first functional film.

17. The laminated glass according to claim 11, characterized in that, The first functional membrane is a first transparent membrane; The first sub-functional membrane is a fourth transparent membrane, and the second sub-functional membrane is a colored membrane; The third functional diaphragm is a sound-insulating diaphragm, which is sandwiched between the first functional diaphragm and the first sub-functional diaphragm; The functional components include a heat-insulating film, a fifth transparent film, and a dimming film. The heat-insulating film is sandwiched between the first functional film and the fifth transparent film, and the dimming film is sandwiched between the fifth transparent film and the second sub-functional film.

18. The laminated glass according to claim 11, characterized in that, Heating wires are arranged in the visible area of ​​the laminated glass.

19. A method for manufacturing laminated glass, characterized in that, The method includes: S1. Provide a first glass plate; S2. Place a first functional film above the first glass plate and position the first functional film so that the first functional film covers the dimming area above the laminated glass and the visible area below the laminated glass, wherein the first functional film has an integrated molding film structure. S3. Above the first functional film, a third functional film is placed in the visible area and positioned. A functional component is placed in the dimming area and positioned, such that the functional component and the third functional film are spliced ​​together at the junction of the dimming area and the visible area. S4. Place a second functional film above the third functional film and the functional component, such that the second functional film covers the dimming area above the laminated glass and the visible area below the laminated glass, wherein the second functional film is an integrally formed film structure. S5. Provide a second glass plate, place it above the second functional membrane, and align the second glass plate based on the first glass plate; S6. The integral structure formed by the first glass plate, the first functional film, the second functional film, the third functional film, the functional component, and the second glass plate is laminated to form laminated glass; wherein... The functional component is a functional membrane stack formed by stacking at least two functional membrane layers in sequence. Each functional membrane layer and the third functional membrane are spliced ​​together to form a splice seam, and adjacent splice seams are staggered with each other.

20. The method according to claim 19, characterized in that, Replace steps S2 to S4 above with the following steps (1) to (5): (1) A first functional film is placed on a supporting substrate, wherein the first functional film is an integrally formed film structure, and the first functional film can cover the dimming area above the laminated glass and the visible area below the laminated glass. (2) Above the first functional film, a third functional film is placed in the visible area and positioned. A functional component is placed in the dimming area and positioned, such that the functional component and the third functional film are spliced ​​together at the junction of the dimming area and the visible area; wherein, the functional component is a functional film stack formed by stacking at least two functional film layers in sequence, and each functional film layer and the third functional film are spliced ​​together to form a splicing seam, and adjacent splicing seams are staggered from each other; (3) Place a second functional membrane above the functional component and the third functional membrane, such that the second functional membrane covers the functional component and the third functional membrane; (4) Remove the supporting substrate and fix the first functional membrane, the second functional membrane, the third functional membrane and the functional components into an integral structure to form an integral membrane; (5) Place the integrated film on top of the first glass plate and position the integrated film.

21. The method according to claim 19 or 20, characterized in that, Above the first functional film, a functional component is placed in the dimming area and positioned such that the functional component and the third functional film are joined at the junction of the dimming area and the visible area, including: Above the first functional film, in the dimming area, at least one of the functional film layers is spliced ​​with the third functional film layer and the functional film layer is positioned each time, until all the functional film layers are spliced ​​with the third functional film layer and the positioning is completed, forming the functional component spliced ​​with the third functional film layer at the position where the dimming area and the visible area meet.

22. The method according to claim 19, characterized in that, The total number of times the functional component is spliced ​​with the third functional diaphragm is less than or equal to 3.

23. A method for manufacturing laminated glass, characterized in that, The method includes: S1. Provide a first glass plate; S2. Place a first functional film above the first glass plate and position the first functional film so that the first functional film covers the dimming area above the laminated glass and the visible area below the laminated glass, wherein the first functional film has an integrated molding film structure. S3. Above the first functional film, a third functional film is placed in the visible area and positioned. A functional component is placed in the dimming area and positioned, such that the functional component and the third functional film are spliced ​​together at the junction of the dimming area and the visible area. S4. Place a second functional film above the third functional film and the functional component, such that the second functional film covers the dimming area above the laminated glass and the visible area below the laminated glass. S5. Provide a second glass plate, place it above the second functional membrane, and align the second glass plate based on the first glass plate; S6. The integral structure formed by the first glass plate, the first functional film, the second functional film, the third functional film, the functional component, and the second glass plate is laminated to form laminated glass; wherein... The second functional membrane is a spliced ​​membrane structure; the second functional membrane includes a first sub-functional membrane and a second sub-functional membrane, the first sub-functional membrane is sandwiched between the third functional membrane and the second glass plate, the second sub-functional membrane is sandwiched between the functional component and the second glass plate, and the first sub-functional membrane and the second sub-functional membrane are spliced ​​together at the position where the dimming area and the visible area meet; The functional component is a functional membrane stack formed by stacking at least two functional membrane layers sequentially. Each functional membrane layer and the third functional membrane sheet are spliced ​​together to form a seam, and adjacent seams are staggered. Alternatively, the seam formed by splicing the functional membrane layer that is attached to the second functional membrane sheet and the third functional membrane sheet in the functional membrane stack is staggered from the seam in the spliced ​​membrane structure. Or, the functional component is a functional membrane layer, and the seam formed by splicing the functional component and the third functional membrane sheet is staggered from the seam in the spliced ​​membrane structure.

24. The method according to claim 23, characterized in that, The functional component is a functional membrane stack formed by stacking at least two functional membrane layers in sequence; Above the first functional film, a functional component is placed in the dimming area and positioned such that the functional component and the third functional film are joined at the junction of the dimming area and the visible area, including: Above the first functional film, in the dimming area, at least one of the functional film layers is spliced ​​with the third functional film layer and the functional film layer is positioned each time, until all the functional film layers are spliced ​​with the third functional film layer and the positioning is completed, forming the functional component spliced ​​with the third functional film layer at the position where the dimming area and the visible area meet.

25. The method according to claim 23 or 24, characterized in that, The total number of times the functional component is spliced ​​with the third functional diaphragm is less than or equal to 2.

26. A panoramic windshield, characterized in that, The panoramic windshield includes the laminated glass described in any one of claims 1 to 18.

27. A means of transportation, characterized in that, The vehicle includes the laminated glass as described in any one of claims 1 to 18.

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