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

Abstract

The invention discloses laminated glass, a laminated glass manufacturing method, a panoramic front windshield and a vehicle. The laminated glass comprises a first glass plate and a second glass plate, the first functional membrane is of an integrally-formed membrane structure covering a dimming area on the upper portion of the laminated glass and a visible area on the lower portion of the laminated glass, and the first functional membrane is attached to the inner surface of the first glass plate; the second functional membrane is an integrally formed membrane structure or a spliced membrane structure covering a dimming area on the upper portion of the laminated glass and a visible area on the lower portion of the laminated glass, and the second functional membrane is attached to the inner surface of the second glass plate; the third functional membrane is clamped between the first functional membrane and the second functional membrane, and the third functional membrane is positioned in the visible area of the laminated glass; the functional component is clamped between the first functional membrane and the second functional membrane, the functional component is located in the dimming area of the laminated glass, and the functional component and the third functional membrane are spliced at the position where the dimming area is connected with the visible area.

Description

Technical Field

[0001] The present invention relates to glass, and in particular to a laminated glass, a laminated glass manufacturing method, a panoramic windshield and a vehicle. Background Art

[0002] At present, the splicing products of multi-layer functional film composites (thermal insulation film, dimming film, etc.) on the front windshield of automobiles have many seams, difficult processes, and many problems (bubbles, debonding and stratification of functional film layers, unqualified impact of human head models at splicing points, etc.). At the same time, the production efficiency is extremely low due to the splicing of multi-layer films.

[0003] Specifically, this type of windshield is made of multiple PVB (polyvinyl butyral) films spliced ​​together, which is difficult to operate. The overlapping gaps are prone to bubbles, and gas intrusion into the functional film layer may cause defects such as debonding or stratification of the functional film. At the same time, poor glass overlap and PVB stacking during the transportation process may cause the glass to break. The gaps between the PVB splicing layers in contact with the glass surface are extremely prone to bubbles during the processing. There is a greater risk of impact from the product's mechanical head model, and it is easy to break at the splicing.

[0004] This section is intended to provide a background or context to the embodiments of the invention recited in the claims. No admission is made that the description herein is prior art by inclusion in this section. Summary of the invention

[0005] The purpose of the present invention is to provide a laminated glass, a method for manufacturing laminated glass, a panoramic windshield and a vehicle, so as to solve the technical problems existing in the current glass plate structure.

[0006] An embodiment of the present invention provides a laminated glass, comprising:

[0007] a first glass sheet and a second glass sheet;

[0008] a first functional film sheet, wherein the first functional film sheet is an integrated molded film structure covering a dimming zone at an upper portion of the laminated glass and a visual zone at a lower portion of the laminated glass, and the first functional film sheet is attached to an inner surface of the first glass plate;

[0009] A second functional film, wherein the second functional film is an integrated molded film structure or a spliced ​​film structure covering a dimming zone at an upper portion of the laminated glass and a visual zone at a lower portion of the laminated glass, and the second functional film is attached to an inner surface of the second glass plate;

[0010] a third functional film sheet, wherein the third functional film sheet is sandwiched between the first functional film sheet and the second functional film sheet, and the third functional film sheet is located in a 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 ​​at a position where the dimming area and the visible area meet.

[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 clamped between the third functional film and the second glass plate, the second sub-functional film is clamped between the functional component and the second glass plate, and the first sub-functional film and the second sub-functional film are spliced ​​at the position where the dimming area and the visible area are connected.

[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 functional film layer.

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

[0015] In some embodiments, when the second functional film sheet is a spliced ​​film structure, a splicing seam formed by splicing a functional film layer in the functional film stack that is bonded to the second functional film sheet and the third functional film sheet is offset from a splicing seam in the spliced ​​film structure.

[0016] In some embodiments, when the functional component is a functional film layer and the second functional film sheet is a spliced ​​film structure, a splicing seam formed by splicing the functional component and the third functional film sheet and a splicing seam in the spliced ​​film structure are offset from each other.

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

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

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

[0020] The second functional film is an integrated transparent film or a colored gradient film.

[0021] In some embodiments, the third functional diaphragm is a sound insulation 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 film is a transparent film; the second functional film is a spliced ​​film structure formed by splicing a first sub-functional film and a second sub-functional film, the first sub-functional film is a transparent film, and the second sub-functional film is a colored film; the third functional film is a transparent film, and the third functional film is sandwiched between the first sub-functional film and the first functional film; the functional component is a dimming film, and the dimming film is sandwiched between the second sub-functional film and the first functional film.

[0024] In some embodiments, the first functional membrane is a transparent membrane; the second functional membrane is a spliced ​​membrane structure formed by splicing a first sub-functional membrane and a second sub-functional 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 sound insulation membrane, and the sound insulation membrane is sandwiched between the first functional membrane and the first sub-functional membrane; the functional components include a heat insulation membrane, a transparent membrane and a dimming membrane, the heat insulation 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 diaphragm is a transparent diaphragm; the second functional diaphragm is an integrated colored gradient diaphragm; the third functional diaphragm is a sound insulation diaphragm; the functional components include a heat insulation diaphragm, a transparent diaphragm and a dimming diaphragm, the heat insulation diaphragm is sandwiched between the first functional diaphragm and the transparent diaphragm, and the dimming diaphragm is sandwiched between the transparent diaphragm and the second functional diaphragm.

[0026] In some embodiments, the first functional membrane is a transparent membrane; the second functional membrane is an integrated transparent membrane; the third functional membrane is a sound insulation membrane; the functional components include a heat insulation membrane, a colored membrane and a dimming membrane, the heat insulation 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 diaphragm is a transparent diaphragm; the second functional diaphragm is an integrated colored gradient sound insulation diaphragm; the third functional diaphragm is a transparent diaphragm; the functional components include a heat insulation diaphragm, a transparent diaphragm and a dimming diaphragm, wherein the heat insulation diaphragm is sandwiched between the first functional diaphragm and the transparent diaphragm, and the dimming diaphragm is sandwiched between the transparent diaphragm and the second functional diaphragm.

[0028] In some embodiments, a heating wire is arranged in the visible area of ​​the laminated glass.

[0029] An embodiment of the present invention further provides a method for manufacturing laminated glass, the method comprising:

[0030] S1. providing a first glass plate;

[0031] S2. Place a first functional film sheet on the first glass plate and position the first functional film sheet so that the first functional film sheet covers the dimming area on the upper part of the laminated glass and the visual area on the lower part of the laminated glass, wherein the first functional film sheet is an integrated molded film structure;

[0032] S3, placing a third functional film sheet on the visual area and positioning the third functional film sheet above the first functional film sheet, placing a functional component on the dimming area and positioning the functional component so that the functional component and the third functional film sheet are spliced ​​at a position where the dimming area and the visual area meet;

[0033] S4, placing a second functional film sheet above the third functional film sheet and the functional component, so that the second functional film sheet covers the dimming area at the upper part of the laminated glass and the visual area at the lower part of the laminated glass, wherein the second functional film sheet is an integrated film structure or a spliced ​​film structure;

[0034] S5, providing a second glass plate, placing it on the second functional film, and aligning the second glass plate based on the first glass plate;

[0035] S6, combining the first glass plate, the first functional membrane, the second functional membrane, the third functional membrane, the functional component and the second glass plate to form a laminated glass.

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

[0037] (1) placing a first functional film on a supporting substrate, wherein the first functional film is an integrated film structure, and the first functional film can cover a dimming area at the upper portion of the laminated glass and a visible area at the lower portion of the laminated glass;

[0038] (2) placing a third functional film sheet on the visual area and positioning the third functional film sheet above the first functional film sheet, and placing a functional component on the dimming area and positioning the functional component so that the functional component and the third functional film sheet are spliced ​​at a position where the dimming area and the visual area meet;

[0039] (3) placing a second functional membrane sheet above the functional component and the third functional membrane sheet, so that the second functional membrane sheet covers the functional component and the third functional membrane sheet, wherein the second functional membrane sheet is an integrally formed membrane structure;

[0040] (4) removing the supporting substrate, and fixing the first functional membrane, the second functional membrane, the third functional membrane and the overall structure formed by the functional components into one body to form an integrated membrane;

[0041] (5) Placing the integrated film on the first glass plate and positioning the integrated film.

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

[0043] Above the first functional film, a functional component is placed in the dimming area and positioned so that the functional component and the third functional film are spliced ​​at a position where the dimming area and the visible area meet, including:

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

[0045] In some embodiments, when the second functional film sheet is an integrated film structure, the total number of times each of the functional film layers is spliced ​​with the third functional film sheet is less than or equal to 3 times;

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

[0047] In some embodiments, each of the functional film layers is spliced ​​with the third functional film sheet to form a splicing seam, and two adjacent splicing seams are staggered with each other.

[0048] In some embodiments, when the second functional film sheet is a spliced ​​film structure, a splicing seam formed by splicing a functional film layer in the functional film stack that is bonded to the second functional film sheet and the third functional film sheet is offset from a splicing seam in the spliced ​​film structure.

[0049] In some embodiments, when the functional component is a functional film layer and the second functional film sheet is a spliced ​​film structure, a splicing seam formed by splicing the functional component and the third functional film sheet and a splicing seam in the spliced ​​film structure are offset from each other.

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

[0051] A second functional film is placed above the third functional film and the functional component, so that the second functional film covers the dimming area at the upper part of the laminated glass and the visual area at the lower part of the laminated glass, including:

[0052] A first sub-functional film sheet is placed and positioned on the third functional film sheet, and a second sub-functional film sheet is placed and positioned on the functional component, so that the first sub-functional film sheet and the second sub-functional film sheet are spliced ​​at the position where the dimming area and the visual area meet.

[0053] An embodiment of the present invention further provides a panoramic windshield, which comprises the laminated glass described in any one of the above embodiments.

[0054] An embodiment of the present invention further provides a vehicle, comprising the laminated glass described in any one 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 molded film structure for the first functional film sheet bonded to the inner surface of the first glass plate and / or the second functional film sheet bonded to the inner surface of the second glass plate, thereby reducing the splicing operation of the functional film sheets bonded to the glass surface. In this way, the operation requirements for the splicing seams of other spliced ​​film layers are lower, and the splicing operations in the entire laminated glass production process are reduced, which can improve production efficiency and reduce the risks of bubbles and demolding and stratification of functional films, effectively improving product reliability and satisfying the mechanical impact test (human head model impact) of the splicing gap, especially in the use of automobile windshields. BRIEF DESCRIPTION OF THE DRAWINGS

[0056] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the following briefly introduces the drawings required for use in the description of the embodiments. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0057] Figure 1a and Figure 1bThey are respectively exploded schematic diagrams of the cross-sectional structure of a laminated glass provided in embodiments of the present invention.

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

[0059] Figure 2b A schematic diagram of the cross-sectional structure of a laminated glass provided in an embodiment of the present invention.

[0060] Figure 2c A schematic diagram of the cross-sectional structure of a laminated glass provided in an embodiment of the present invention.

[0061] Figure 2d A schematic diagram of the cross-sectional structure of a laminated glass provided in an embodiment of the present invention.

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

[0063] Figure 3b and Figure 3c They are schematic cross-sectional structures of a laminated glass provided in embodiments of the present invention.

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

[0065] Figure 5 A schematic front view of a laminated glass provided by an embodiment of the present invention.

[0066] Figure 6 A schematic flow chart of a method for manufacturing laminated glass provided in an embodiment of the present invention. DETAILED DESCRIPTION

[0067] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0068] With reference to the following description and accompanying drawings, specific embodiments of the present invention are disclosed in detail, indicating the manner in which the principles of the present invention can be adopted. It should be understood that the embodiments of the present invention are not limited in scope. Within the spirit and scope of the appended claims, the embodiments of the present invention include many changes, modifications and equivalents.

[0069] Features described and / or illustrated with respect to 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 “include / comprises” when used herein refers to the presence of features, integers, steps or components, but does not exclude the presence or addition of one or more other features, integers, steps or components.

[0071] In order to solve at least one of the above problems existing 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. 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 (Some figures do not show the dimming area and the viewing area, please refer to Figure 1a / Figure 1b ), the present invention provides a laminated glass 100, comprising:

[0072] A first glass plate 10 and a second glass plate 20;

[0073] A first functional film 30, wherein the first functional film 30 is an integrated film structure covering a dimming zone 101 at the upper portion of the laminated glass 100 and a visual zone 102 at the lower portion 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] A second functional film 40, which is an integrated film structure or a spliced ​​film structure covering the dimming area 101 at the upper part of the laminated glass 100 and the visual area 102 at 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] A third functional film 50 , wherein 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] The 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 ​​at the position where the dimming area 101 and the visible area 102 are connected.

[0077] Specifically, the first glass plate 10 can be an outer glass plate (i.e., the glass plate facing outward when the laminated glass 100 is in use), and the second glass plate 20 can be an inner glass plate (i.e., the glass plate facing inward when the laminated glass 100 is in use); 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 visual area 102 of the laminated glass 100, or is 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 visual area 102 of the laminated glass 100, and the other interlayer is a splicing film layer, for example Figure 1b The spliced ​​film layer composed of the third functional film sheet 50 and the functional component 60 is shown in FIG.

[0079] The laminated glass 100 provided in the embodiment of the present invention adopts an integrated molded film structure for the first functional film 30 bonded to the inner surface 10a of the first glass plate 10 and / or the second functional film 40 bonded to the inner surface 20a of the second glass plate 20, thereby reducing the splicing operation of the functional film bonded to the glass surface. In this way, the operation requirements for the splicing seams of other spliced ​​film layers are lower, and the splicing operations in the entire laminated glass production process are reduced, which can improve production efficiency and reduce the risks of bubbles and functional film demolding and stratification, effectively improving product reliability, while meeting the mechanical impact test (human head model impact) of the splicing gap, especially in the use of automobile windshields.

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

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

[0082] In some embodiments, the functional component 60 is a functional film stack formed by stacking at least two functional film layers in sequence. 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; 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 stacking at least two functional film layers in sequence, each functional film layer and the third functional film sheet 50 are spliced ​​to form a splicing seam, and two adjacent splicing seams are staggered with each other, so that gas accumulation in the splicing seam can be reduced. For example, Figure 2b As shown, the functional film layer 61 and the third functional film sheet 50 are spliced ​​to form a splicing seam 70a, the functional film layer 62 and the third functional film sheet 50 are spliced ​​to form a splicing seam 70b, and the functional film layer 63 and the third functional film sheet 50 are spliced ​​to form a splicing seam 70c. The splicing seams 70a and 70b are offset from each other, and the splicing seams 70b and 70c are offset from each other.

[0084] like Figure 2b As shown, in some embodiments, when the second functional film sheet 40 is a spliced ​​film structure, the splicing seam 70c formed by splicing the functional film layer 63 in the functional film stack that is in contact with the second functional film sheet 40 and the third functional film sheet 50 is offset from the splicing seam 40a in the spliced ​​film structure. In this way, the accumulation of gas between the splicing seams 70c and 40a can be reduced.

[0085] like Figure 1b As shown, in some embodiments, when the functional component 60 is a functional film layer and the second functional film sheet 40 is a splicing film structure, the splicing seam 70d formed by splicing the functional component 60 and the third functional film sheet 50 is offset from the splicing seam 40a in the splicing film structure, thereby reducing the accumulation of gas between the splicing seams 70d and 40a.

[0086] In some embodiments, the distance between any two adjacent joints is 2 mm to 15 mm, which facilitates the jointing operation. Figure 1bAs shown, the distance between the joint seam 70d and the joint seam 40a is 2 mm to 15 mm; Figure 2b As shown, the offset distances between the splicing seams 70a and 70b, the splicing seams 70b and 70c, and the splicing seams 70c and 40a are 2 mm to 15 mm, respectively.

[0087] In some embodiments, for each functional film layer in the functional film stack, the width of the joint between the functional film layer and the third functional film sheet 50 may be greater than or equal to 2 mm, and when the thickness of the functional film layer is greater than 0.2 mm, the joint may be filled with a filler film sheet 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, there is no need to fill the filler film sheet, that is, no filler is required. For example, Figure 2b As shown, the width of the joint seam 70c between the functional film layer 63 and the third functional film sheet 50 is greater than or equal to 2 mm, and the thickness of the functional film layer 63 is greater than 0.2 mm. The joint seam 70c is filled with a filler film sheet 80 having the same thickness as the functional film layer 63 .

[0088] In some embodiments, the first functional film 30 is a transparent film or a colored gradient film; and / or the second functional film 40 is an integrated transparent film or a colored gradient film. Figure 2c / Figure 2d / Figure 3b As shown, the first functional film 30 may be a transparent film, such as Figure 2c As shown, the second functional film 40 may be a colored gradient film, such as Figure 2d As shown, the second functional film 40 may be a transparent film, such as Figure 3b As shown, the second functional diaphragm 40 can further be a gradient sound insulation diaphragm.

[0089] In some embodiments, the third functional membrane 50 may be a soundproof membrane or a transparent membrane. Figure 2b / Figure 2c / Figure 2d As shown, the third functional membrane 50 may be a sound insulation membrane, such as Figure 1a / Figure 1b / Figure 3b As shown, the third functional film 50 may be a transparent film.

[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 may be a curved glass, such as a curved windshield on a car. When the laminated glass 100 is a curved glass, and the second functional film sheet 40 is a spliced ​​film structure formed by splicing the first sub-functional film sheet 41 and the second sub-functional film sheet 42, as shown in FIG. Figure 4a As shown, the shape of the joint seam 40 a between the first sub-functional film 41 and the second sub-functional film 42 may be an arc-shaped joint seam, and the arc-shaped joint seam 40 a may be parallel to the upper edge / 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 engaging teeth 41a may be provided at the end and / or inside of the upper edge of the first sub-functional film 41, and a corresponding engaging tooth 42a may be provided at the corresponding position of the lower edge of the second sub-functional film 42. After the first sub-functional film 41 and the second sub-functional film 42 are spliced ​​together, the engaging teeth 41a and the engaging teeth 42a are engaged with each other. In this way, the splicing and positioning operation between the first sub-functional film 41 and the second sub-functional film 42 is facilitated, and the operation requirements for the splicing seam 40a are lower.

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

[0094] In any of the above embodiments, the first functional film 30, the second functional film 40, the third functional film 50 and / or the filling film 80 can specifically be functional films made of PVB material; the colored film and / or transparent film in the functional component 60 can also be functional films made of PVB material, and the thermal insulation film can be a functional film made of PET (polyethylene terephthalate).

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

[0096] Embodiment 1

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

[0098] Among them, the first functional film 30 can be specifically a C PVB (transparent PVB, ClearPVB) with a thickness of 0.76mm, the first sub-functional film 41 can be specifically a C PVB with a thickness of 0.38mm, the second sub-functional film 42 can be specifically a Y PVB (colored PVB film) with a thickness of 0.38mm, the third functional film 50 can be specifically a C PVB with a thickness of 0.38mm, and the functional component 60 can be specifically a dimming film with a thickness of 0.38mm.

[0099] Compared to Figure 1a Laminated glass 100, Figure 1b The joint seams 40a and 70d of the laminated glass 100 are also staggered; specifically, compared to Figure 1a , Figure 1b The first sub-functional film sheet 41 is displaced toward the second sub-functional film sheet 42. Of course, the second sub-functional film sheet 42 can also be displaced toward the first sub-functional film sheet 41, so that the splicing seam 40a and the splicing seam 70d formed between the first sub-functional film sheet 41 and the second sub-functional film sheet 42 are staggered with each other.

[0100] Embodiment 2

[0101] Figure 2a is a schematic diagram of the structure of a laminated glass 200 having an existing structure. Figure 2b It is based on the inventive concept of the present invention Figure 2a A schematic structural diagram of a laminated glass 100 obtained by improving the laminated glass 200 in FIG.

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

[0103] like Figure 2b As shown, in the laminated glass 100 of the new structure provided by the present invention, the first functional film 30 can be specifically a 0.38mm thick C PVB film, the second functional film 40 is a spliced ​​film structure formed by splicing a first sub-functional film 41 and a second sub-functional film 42, the first sub-functional film 41 can be specifically a 0.38mm thick C PVB film, the second sub-functional film 42 can be specifically a 0.38mm thick Y PVB film, the third functional film 50 can be specifically a 0.76mm thick sound insulation C PVB 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 be specifically a heat insulation PET film, the functional film layer 62 can be specifically a 0.38mm thick C PVB film, and the functional film layer 63 can be specifically a 0.38mm thick black dimming film.

[0104] Compared to Figure 2a Laminated glass 200, Figure 2b In the laminated glass 100, the first functional film 30 bonded to the inner surface of the first glass plate 10 is an integrated molded film structure covering the dimming area 101 and the visible area 102, which reduces the number of spliced ​​film layers, and adjacent splicing seams are staggered to reduce the accumulation of gas in the gaps between the splicing seams.

[0105] Embodiment 3

[0106] Figure 2c It is based on the inventive concept of the present invention Figure 2a A schematic structural diagram of a laminated glass 100 obtained by improving the laminated glass 200 in FIG.

[0107] like Figure 2cAs shown, in the laminated glass 100 with a new structure provided by the present invention, the first functional film 30 can be specifically a 0.38mm thick C PVB film, the second functional film 40 can be specifically an integrated 0.38mm thick gradient Y PVB film, and the third functional film 50 can be specifically a 0.76mm thick sound insulation C PVB 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 be specifically a heat insulation PET film, the functional film layer 62 can be specifically a 0.38mm thick C PVB film, and the functional film layer 63 can be specifically a 0.38mm thick black dimming film.

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

[0109] Embodiment 4

[0110] Figure 2d It is based on the inventive concept of the present invention Figure 2a A schematic structural diagram of a laminated glass 100 obtained by improving the laminated glass 200 in FIG.

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

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

[0113] Embodiment 5

[0114] Figure 3a is a schematic diagram of the structure of a laminated glass 200 having an existing structure. Figure 3b It is based on the inventive concept of the present invention Figure 3a A schematic structural diagram of a laminated glass 100 obtained by improving the laminated glass 200 in FIG.

[0115] like Figure 3a As shown, the existing structure of the laminated glass 200 includes a transparent (Clear) first glass plate 1 with a thickness of 2 mm, a sound insulation C PVB film 3 with a thickness of 0.76 mm, a gradient sound insulation PVB film 4 with a thickness of 0.76 mm, a C PVB film 5 with a thickness of 0.38 mm, a heat insulation PET film 6, a C PVB film 7 with a thickness of 0.38 mm, a black dimming film 8 with a thickness of 0.14 mm, and a green (Green) second glass plate 2 with a thickness of 2 mm.

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

[0117] Compared to Figure 3a Laminated glass 200, Figure 3b In the laminated glass 100, the first functional film 30 bonded to the inner surface of the first glass plate 10 is an integrated functional film structure covering the dimming area 101 and the visible area 102, and the second functional film 40 bonded to the inner surface of the second glass plate 20 is also an integrated functional film structure covering the dimming area 101 and the visible area 102, thereby reducing the number of splicing film layers of the laminated glass 100, and adjacent splicing seams are staggered, thereby reducing the accumulation of gas in the gaps between the splicing seams.

[0118] Embodiment 6

[0119] Figure 3c It is a schematic structural diagram 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, except that: Figure 3c The visible area 102 of the laminated glass 100 shown is provided with a heating wire 90, and the heating wire 90 is arranged between the second functional film 40 and the second glass plate 20. In another embodiment, the heating wire 90 can also be arranged between the first functional film 30 and the first glass plate 10 (not shown in the figure).

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

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

[0122] S1. providing a first glass plate;

[0123] S2. Place a first functional film sheet on the first glass plate and position the first functional film sheet so that the first functional film sheet covers the dimming area on the upper part of the laminated glass and the visual area on the lower part of the laminated glass, wherein the first functional film sheet is an integrated molded film structure;

[0124] S3, placing a third functional film sheet on the visual area and positioning the third functional film sheet above the first functional film sheet, placing a functional component on the dimming area and positioning the functional component so that the functional component and the third functional film sheet are spliced ​​at a position where the dimming area and the visual area meet;

[0125] S4, placing a second functional film sheet above the third functional film sheet and the functional component, so that the second functional film sheet covers the dimming area at the upper part of the laminated glass and the visual area at the lower part of the laminated glass, wherein the second functional film sheet is an integrated film structure or a spliced ​​film structure;

[0126] S5, providing a second glass plate, placing it on the second functional film, and aligning the second glass plate based on the first glass plate;

[0127] S6, combining the first glass plate, the first functional membrane, the second functional membrane, the third functional membrane, the functional component and the second glass plate to form a laminated glass.

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

[0129] (1) placing a first functional film on a supporting substrate, wherein the first functional film is an integrated film structure, and the first functional film can cover a dimming area at the upper portion of the laminated glass and a visible area at the lower portion of the laminated glass;

[0130] (2) placing a third functional film sheet on the visual area and positioning the third functional film sheet above the first functional film sheet, and placing a functional component on the dimming area and positioning the functional component so that the functional component and the third functional film sheet are spliced ​​at a position where the dimming area and the visual area meet;

[0131] (3) placing a second functional membrane sheet above the functional component and the third functional membrane sheet, so that the second functional membrane sheet covers the functional component and the third functional membrane sheet, wherein the second functional membrane sheet is an integrally formed membrane structure;

[0132] (4) removing the supporting substrate, and fixing the first functional membrane, the second functional membrane, the third functional membrane and the overall structure formed by the functional components into one body to form an integrated membrane;

[0133] (5) Placing the integrated film on the first glass plate and positioning the integrated film.

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

[0135] In some embodiments, when the second functional film sheet is an integrated film structure, the total number of times each functional film layer is spliced ​​with the third functional film sheet is less than or equal to 3 times; when the second functional film sheet is a spliced ​​film structure, the total number of times each functional film layer is spliced ​​with the third functional film sheet is less than or equal to 2 times. In this way, the splicing operation in the entire laminated glass production process can be reduced, the production efficiency can be improved, and the risks of bubbles and functional film delamination and stratification can be reduced, greatly improving product reliability.

[0136] In some embodiments, each of the functional film layers is spliced ​​with the third functional film sheet to form a splicing seam, and two adjacent splicing seams are staggered with each other.

[0137] In some embodiments, when the second functional film sheet is a spliced ​​film structure, a splicing seam formed by splicing a functional film layer in the functional film stack that is bonded to the second functional film sheet and the third functional film sheet is offset from a splicing seam in the spliced ​​film structure.

[0138] In some embodiments, when the functional component is a functional film layer and the second functional film sheet is a spliced ​​film structure, a splicing seam formed by splicing the functional component and the third functional film sheet and a splicing seam in the spliced ​​film structure are offset from each other.

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

[0140] In some embodiments, each time at least one of the functional film layers is spliced ​​with the third functional film sheet, if the width of the joint seam between the functional film layer and the third functional film sheet is greater than or equal to 2 mm, and the thickness of the functional film layer is greater than 0.2 mm, a filler film sheet with the same thickness as the functional film layer is filled in the joint seam so that the gap between the filler film sheet and the functional film 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 the third functional film and positioning it, placing the second sub-functional film on the functional component and positioning it, so that the first sub-functional film and the second sub-functional film are spliced ​​at the position where the dimming area and the visible area are connected.

[0142] In order to better understand the method for manufacturing laminated glass provided by the present invention, the method for manufacturing laminated glass provided by the present invention is described in detail below through some specific embodiments.

[0143] Embodiment 7

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

[0145] Step 1: Material preparation

[0146] a) The functional film layer 61 (insulating PET film) and the functional film layer 64 (Y PVB film) are pre-compounded, and the composited films are precisely cut by equipment (laser or mechanical method). The size of the Y PVB film after cutting is basically the same as the flattened image of the glass (considering the shrinkage of the Y PVB film, the size of the Y PVB film here can be slightly larger than the flattened image of the glass). Then, the insulating PET film is half-cut. The edge of the insulating PET film after cutting is indented inward by more than 7mm compared with the edge of the Y PVB film after cutting. When there is a printing structure at the position where the dimming area 101 and the visible area 102 of the laminated glass 100 are connected, the size of the printing area entered by the insulating PET film is ≥5mm.

[0147] b) washing, cleaning and drying the second glass plate 20 and the first glass plate 10;

[0148] c) PVB Precision 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 the flattened glass image.

[0149] Step 2: Assembly and packaging

[0150] a) placing a first glass sheet 10 (which may be an outer glass sheet);

[0151] b) placing the first functional film (CPVB film with a thickness of 0.38 mm) 30 and positioning it;

[0152] c) encapsulating the third functional film (CPVB film with a thickness of 0.76 mm) 50 and positioning;

[0153] d) placing the pre-composite membrane after precision cutting and positioning;

[0154] e) Place the functional film layer (0.38mm thick dimming film) 63 for positioning, fill the periphery of the dimming film with a filler film (PVB film) of the same thickness as the dimming film, and the gap between the filler film and the dimming film is ≤5mm;

[0155] f) placing a second functional film (CPVB film with a thickness of 0.38 mm) 30 and positioning it;

[0156] g) placing the second glass plate 20 (which may be the inner glass plate) and aligning it (controlling the overlap difference to be less than 1 mm);

[0157] h) Cold drawing of vacuum ring 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 in the first glass plate 10 and the second glass plate 20 for packaging - cold drawing initial pressure and high pressure.

[0160] Embodiment 8

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

[0162] Step 1: Material preparation

[0163] a) The functional film layer 61 (insulating PET film) and the functional film layer 64 (CPVB film) are pre-compounded, and the composited films are precisely cut by equipment (laser or mechanical method), and the size of the C PVB film after cutting is basically the same as the flattened glass diagram (considering the shrinkage of the C PVB film, the size of the C PVB film here can be slightly larger than the flattened glass diagram), and then the insulating PET film is half-cut, and the edge of the insulating PET film after cutting is indented inward by more than 7mm compared to the edge of the C PVB film after cutting. When there is a printing structure at the position where the dimming area 101 and the visual area 102 of the laminated glass 100 are connected, the size of the printing area where the insulating PET film enters is ≥5mm.

[0164] b) washing, cleaning and drying the second glass plate 20 and the first glass plate 10;

[0165] c) Precise preparation of PVB: The final composite film obtained in step a) above is cut more accurately so that the size of the C PVB film is the same as the flattened glass image.

[0166] Step 2: Assembly and packaging

[0167] a) placing a first glass sheet 10 (which may be an outer glass sheet);

[0168] b) placing the first functional film (CPVB film with a thickness of 0.38 mm) 30 and positioning it;

[0169] c) encapsulating the third functional film (CPVB film with a thickness of 0.38 mm) 50 and positioning;

[0170] d) placing the pre-composite membrane after precision cutting and positioning;

[0171] e) Place the functional film layer (0.14mm thick dimming film) 63 for positioning, fill the periphery of the dimming film with a filler film (PVB film) of the same thickness as the dimming film, and the gap between the filler film and the dimming film is ≤5mm;

[0172] f) placing a second functional diaphragm (a gradient sound-insulating PVB diaphragm with a thickness of 0.76 mm) 30 and positioning it;

[0173] g) placing the second glass plate 20 (which may be an inner glass plate) and aligning it (controlling the overlap difference to be less than 1 mm);

[0174] h) Cold drawing of vacuum ring 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 in the first glass plate 10 and the second glass plate 20 for packaging - cold drawing initial pressure and high pressure.

[0177] The experiment verified that by setting the functional film of the laminated glass surface to cover the dimming area and the visual area, and the design of the staggered joints between the adjacent splicing film layers, the problems of bubbles in the splicing gap and the stratification of the dimming film in the early stage were completely solved. At the same time, due to the staggered joints, the head model test of the splicing area passed (the splicing area of ​​the original non-staggered structure failed), the finished product baking test passed, the finished product was stored at 90℃ for 1000H at high temperature, 100℃ for 500H without bubbles, and 20 cycles of high and low temperature (-40℃ / 80℃) without problems. The production efficiency of the optimized laminated glass has been increased by more than 30%, the product reliability has been greatly improved, the yield rate is >95%, and the bubble problem and impurities caused by long operation time have been reduced.

[0178] Based on the same inventive concept, an embodiment of the present invention further provides a panoramic windshield, which includes the laminated glass described in any of the above embodiments. The panoramic windshield has similar beneficial effects as the laminated glass, which will not be described in detail here.

[0179] Based on the same inventive concept, an embodiment of the present invention further provides a vehicle, which includes the laminated glass described in any of the above embodiments. Since the vehicle includes the laminated glass, the vehicle has similar beneficial effects as the laminated glass, which will not be described in detail here.

[0180] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that the process, method, article or device including a series of elements not only includes those elements, but also includes other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of more restrictions, the elements defined by the sentence "including one..." do not exclude the existence of other identical elements in the process, method, article or device including the elements. The orientation or positional relationship indicated by the terms "upper", "lower", etc. is based on the orientation or positional relationship shown in the accompanying drawings, only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation of the present invention. Unless otherwise clearly specified and limited, the terms "installed", "connected" and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0181] Each embodiment in this specification is described in a progressive manner, and the same or similar parts between the embodiments can be referred to each other, and each embodiment focuses on the differences from other embodiments. In the description of this specification, the description of reference terms such as "one embodiment", "some embodiments", "example", "specific example", or "some examples" means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the embodiments of this specification. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art can combine and combine the different embodiments or examples described in this specification and the features of different embodiments or examples without contradiction.

[0182] The present invention uses specific embodiments to illustrate the principles and implementation methods of the present invention. The description of the above embodiments is only used to help understand the method of the present invention and its core idea. At the same time, for those skilled in the art, according to the idea of ​​the present invention, there will be changes in the specific implementation methods and application scope. In summary, the content of this specification should not be understood as a limitation on the present invention.

Claims

1. A laminated glass, characterized in that: include: a first glass sheet and a second glass sheet; a first functional film sheet, wherein the first functional film sheet is an integrated molded film structure covering a dimming zone at an upper portion of the laminated glass and a visual zone at a lower portion of the laminated glass, and the first functional film sheet is attached to an inner surface of the first glass plate; A second functional film, wherein the second functional film is an integrated molded film structure or a spliced ​​film structure covering a dimming zone at an upper portion of the laminated glass and a visual zone at a lower portion of the laminated glass, and the second functional film is attached to an inner surface of the second glass plate; a third functional film sheet, wherein the third functional film sheet is sandwiched between the first functional film sheet and the second functional film sheet, and the third functional film sheet is located in a 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 spliced ​​at a position where the dimming area and the visible area meet.

2. The laminated glass according to claim 1, characterized in that: When the second functional film sheet is a spliced ​​film structure, the second functional film sheet includes a first sub-functional film sheet and a second sub-functional film sheet, the first sub-functional film sheet is clamped between the third functional film sheet and the second glass plate, the second sub-functional film sheet is clamped between the functional component and the second glass plate, and the first sub-functional film sheet and the second sub-functional film sheet are spliced ​​at the position where the dimming area and the visible area are connected.

3. The laminated glass according to claim 1, characterized in that: The functional component is a functional film stack formed by stacking at least two functional film layers in sequence; or The functional component is a functional film layer.

4. The laminated glass according to claim 3, characterized in that: When the functional component is a functional film stack formed by stacking at least two functional film layers in sequence, Each of the functional film layers and the third functional film sheet are spliced ​​together to form a splicing seam, and two adjacent splicing seams are staggered with each other.

5. The laminated glass according to claim 4, characterized in that: When the second functional membrane is a spliced ​​membrane structure, A splicing seam formed by splicing the functional film layer in the functional film stack that is bonded to the second functional film sheet and the third functional film sheet is offset from a splicing seam in the splicing film structure.

6. The laminated glass according to claim 3, characterized in that: When the functional component is a functional film layer, and the second functional film sheet is a spliced ​​film structure, A splicing seam formed by splicing the functional component and the third functional membrane sheet is misaligned with a splicing seam in the splicing membrane structure.

7. The laminated glass according to any one of claims 4 to 6, characterized in that: The distance between two adjacent joints is staggered by 2 mm to 15 mm.

8. The laminated glass according to claim 4, characterized in that: For each functional film layer in the functional film stack, a width of a joint seam between the functional film layer and the third functional film sheet is greater than or equal to 2 mm.

9. The laminated glass according to claim 1, characterized in that: The first functional film is a transparent film or a colored gradient film; and / or The second functional film is an integrated transparent film or a colored gradient film.

10. The laminated glass according to claim 1, characterized in that: The third functional diaphragm is a sound insulation diaphragm or a transparent diaphragm.

11. The laminated glass according to claim 3, characterized in that: The functional film stack includes at least one of the following functional films: a dimming film, a colored film, and a heat insulation film.

12. The laminated glass according to claim 2, characterized in that: The first functional film is a transparent film; The second functional film sheet is a spliced ​​film structure formed by splicing the first sub-functional film sheet and the second sub-functional film sheet, the first sub-functional film sheet is a transparent film sheet, and the second sub-functional film sheet is a colored film sheet; The third functional film is a transparent film, and the third functional film is sandwiched between the first sub-functional film and the first functional film; The functional component is a dimming film, and the dimming film is sandwiched between the second sub-functional film sheet and the first functional film sheet.

13. The laminated glass according to claim 2, characterized in that: The first functional film is a transparent film; The second functional film sheet is a spliced ​​film structure formed by splicing the first sub-functional film sheet and the second sub-functional film sheet, the first sub-functional film sheet is a transparent film sheet, and the second sub-functional film sheet is a colored film sheet; The third functional diaphragm is a sound insulation diaphragm, and the sound insulation diaphragm is sandwiched between the first functional diaphragm and the first sub-functional diaphragm; The functional component comprises a heat-insulating film, a transparent film and a dimming film. The heat-insulating film is sandwiched between the first functional film and the transparent film, and the dimming film is sandwiched between the transparent film and the second sub-functional film.

14. The laminated glass according to claim 3, characterized in that: The first functional film is a transparent film; The second functional membrane is an integrated colored gradient membrane; The third functional diaphragm is a sound insulation diaphragm; The functional component includes a heat-insulating film, a transparent film and a dimming film. The heat-insulating film is sandwiched between the first functional film and the transparent film, and the dimming film is sandwiched between the transparent film and the second functional film.

15. The laminated glass according to claim 3, characterized in that: The first functional film is a transparent film; The second functional film is an integrated transparent film; The third functional diaphragm is a sound insulation diaphragm; The functional component includes 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.

16. The laminated glass according to claim 3, characterized in that: The first functional film is a transparent film; The second functional diaphragm is an integrated colored gradient sound insulation diaphragm; The third functional film is a transparent film; The functional component includes a heat-insulating film, a transparent film and a dimming film, wherein the heat-insulating film is sandwiched between the first functional film and the transparent film, and the dimming film is sandwiched between the transparent film and the second functional film.

17. The laminated glass according to claim 1, characterized in that: The visible area of ​​the laminated glass is provided with heating wires.

18. A method for manufacturing laminated glass, characterized in that: The method comprises: S1. providing a first glass plate; S2. Place a first functional film sheet on the first glass plate and position the first functional film sheet so that the first functional film sheet covers the dimming area on the upper part of the laminated glass and the visual area on the lower part of the laminated glass, wherein the first functional film sheet is an integrated molded film structure; S3, placing a third functional film sheet on the visual area and positioning the third functional film sheet above the first functional film sheet, placing a functional component on the dimming area and positioning the functional component so that the functional component and the third functional film sheet are spliced ​​at a position where the dimming area and the visual area meet; S4, placing a second functional film sheet above the third functional film sheet and the functional component, so that the second functional film sheet covers the dimming area at the upper part of the laminated glass and the visual area at the lower part of the laminated glass, wherein the second functional film sheet is an integrated film structure or a spliced ​​film structure; S5, providing a second glass plate, placing it on the second functional film, and aligning the second glass plate based on the first glass plate; S6, combining the first glass plate, the first functional membrane, the second functional membrane, the third functional membrane, the functional component and the second glass plate to form a laminated glass.

19. The method according to claim 18, characterized in that The above steps S2 to S4 are replaced by the following steps (1) to (5): (1) placing a first functional film on a supporting substrate, wherein the first functional film is an integrated film structure, and the first functional film can cover a dimming area at the upper portion of the laminated glass and a visible area at the lower portion of the laminated glass; (2) placing a third functional film sheet on the visual area and positioning the third functional film sheet above the first functional film sheet, and placing a functional component on the dimming area and positioning the functional component so that the functional component and the third functional film sheet are spliced ​​at a position where the dimming area and the visual area meet; (3) placing a second functional membrane sheet above the functional component and the third functional membrane sheet, so that the second functional membrane sheet covers the functional component and the third functional membrane sheet, wherein the second functional membrane sheet is an integrally formed membrane structure; (4) removing the supporting substrate, and fixing the first functional membrane, the second functional membrane, the third functional membrane and the overall structure formed by the functional components into one body to form an integrated membrane; (5) Placing the integrated film on the first glass plate and positioning the integrated film.

20. The method according to claim 18 or 19, characterized in that The functional component is a functional film stack formed by stacking at least two functional film layers in sequence; Above the first functional film, a functional component is placed in the dimming area and positioned so that the functional component and the third functional film are spliced ​​at a position where the dimming area and the visible area meet, including: Above the first functional film sheet, in the dimming area, at least one of the functional film layers is spliced ​​with the third functional film sheet and the functional film layers are positioned each time until all of the functional film layers are spliced ​​with the third functional film sheet and positioned, thereby forming the functional component spliced ​​with the third functional film sheet at the position where the dimming area and the visible area meet.

21. The method according to claim 20, characterized in that When the second functional film sheet is an integrated film structure, the total number of times each of the functional film layers is spliced ​​with the third functional film sheet is less than or equal to 3 times; When the second functional film sheet is a spliced ​​film structure, the total number of times each of the functional film layers is spliced ​​with the third functional film sheet is less than or equal to 2 times.

22. The method according to claim 20, characterized in that Each functional film layer is spliced ​​with the third functional film sheet to form a splicing seam, and two adjacent splicing seams are staggered with each other.

23. The method according to claim 22, characterized in that When the second functional membrane is a spliced ​​membrane structure, A splicing seam formed by splicing the functional film layer in the functional film stack that is bonded to the second functional film sheet and the third functional film sheet is offset from a splicing seam in the splicing film structure.

24. The method according to claim 18, characterized in that When the functional component is a functional film layer, and the second functional film sheet is a spliced ​​film structure, A splicing seam formed by splicing the functional component and the third functional membrane sheet is misaligned with a splicing seam in the splicing membrane structure.

25. The method according to claim 18, characterized in that When the second functional film sheet is a spliced ​​film structure, the second functional film sheet includes a first sub-functional film sheet and a second sub-functional film sheet; A second functional film is placed above the third functional film and the functional component, so that the second functional film covers the dimming area at the upper part of the laminated glass and the visual area at the lower part of the laminated glass, including: A first sub-functional film sheet is placed and positioned on the third functional film sheet, and a second sub-functional film sheet is placed and positioned on the functional component, so that the first sub-functional film sheet and the second sub-functional film sheet are spliced ​​at the position where the dimming area and the visual area meet.

26. A panoramic windshield, characterized in that: The panoramic windshield comprises the laminated glass according to any one of claims 1 to 17 above.

27. A means of transport, characterized in that: The vehicle comprises the laminated glass according to any one of claims 1 to 17.

Images