Article, composite panel device with functional elements and method for manufacturing thereof

Abstract

The application relates to an article, a composite board device with a functional element and a manufacturing method thereof. The composite board device with the functional element comprises two sub-boards, two adhesive layers and the functional element. The two adhesive layers are located between the two sub-boards. The functional element is located between the two adhesive layers, and the functional element is connected to the two sub-boards through the two adhesive layers respectively. The boundary of the functional element is recessed relative to the sub-boards. The space regions of the two sub-boards corresponding to the outside of the functional element are edge-filling regions. At least one adhesive layer is provided with a folding part, and the folding part is filled in the edge-filling region. Compared with the method of providing a film piece and processing the film piece to obtain an edge-filling material in the related art, the folding part corresponding to the edge-filling region is formed on the at least one adhesive layer, and the folding part is filled in the edge-filling region, so that not only the edge-filling quality is improved, but also the processing efficiency is improved, the material cost is reduced, and the structure process is simple and easy to realize.

Description

Technical Field

[0001] The present application relates to the field of glass technology, and in particular to a product, a composite panel device with functional elements, and a manufacturing method thereof. Background Art

[0002] Car windows are a crucial component of any vehicle. To ensure driving safety, they require high strength, rigidity, and other safety performance parameters. Car windows are typically designed as laminated glass, consisting of two or more glass substrates interposed with one or more functional components. Laminated glass offers excellent safety and sound insulation, and can be used in various applications, including windshields, rear windshields, side windows, and sunroofs.

[0003] In related technologies, functional elements are bonded to the glass substrate via adhesive films, forming a stable and reliable sandwich structure. Functional elements include, but are not limited to, dimming layers, display layers, and other functional layers to achieve functions such as adjusting the light and line of sight through the glass and displaying a display. The outline dimensions of the functional elements are typically slightly larger than the outline dimensions of the visible area of ​​the laminated glass and smaller than the outer dimensions of the glass substrate. The black borders of the laminated glass require manual cutting of adhesive film to fill the gap between the underlying adhesive film and the functional elements, preventing cracking during the lamination process and facilitating the release of gases from the laminated glass.

[0004] However, as the use of laminated glass has become more widespread and its contours have become more aesthetically pleasing, the difficulty and requirements of edge filling have also increased. In the related art, when manually cutting film to fill the edges, a film sheet is provided. Then, filler material is cut from the edge of the film sheet according to the black edge area of ​​the laminated glass. The filler material is then filled into the black edge area of ​​the laminated glass to fill the edge. In this way, only the edge of the film sheet is effectively utilized, and the large area of ​​material in the middle of the film sheet is wasted, increasing costs. The manual cutting process also affects production efficiency. Summary of the Invention

[0005] Based on this, it is necessary to overcome the defects of the prior art and provide a product, a composite plate device with functional elements and a manufacturing method thereof, which can reduce costs and improve production efficiency.

[0006] A composite plate device with a functional element, the composite plate device with a functional element comprising:

[0007] Two daughter boards;

[0008] two adhesive layers, located between the two sub-boards; and

[0009] The functional element is located between the two adhesive layers. The functional element is connected to the two sub-boards respectively through the two adhesive layers. The boundary of the functional element is retracted relative to the sub-board. The space area of ​​the two sub-boards corresponding to the functional element outside the functional element is the filling area. At least one of the adhesive layers is provided with a folding portion, and the folding portion fills the filling area.

[0010] In one embodiment, the thickness of the functional element is D1, the thickness of the folded portion is D2, and 0.5≤D2 / D1≤2.

[0011] In one embodiment, the folded portion of the adhesive layer is bent toward the side facing the other adhesive layer and cooperates with the edge of the functional element to form a gap or abut against each other; and / or, part of the structure of the folded portion extends to the peripheral area of ​​the two sub-boards, and the fold of the folded portion is located in the peripheral area of ​​the two sub-boards.

[0012] In one embodiment, a distance L between the fold and the edge contour of the sub-plate is 5 mm to 50 mm.

[0013] An article includes a composite panel device having a functional element.

[0014] A method for manufacturing the composite plate device with functional elements, the method comprising the following steps:

[0015] Design the film cutting pattern according to the outline and size of the sub-board;

[0016] Cutting the adhesive layer on the film material according to the film cutting pattern, so that at least one of the adhesive layers includes a main body portion adapted to the contour shape of the sub-board and an extension portion connected to the main body portion;

[0017] After the adhesive layer with the extended portion is aligned and placed on the sub-board of the lower layer, the extended portion is folded to obtain a folded portion;

[0018] Adjusting the fold position of the folding portion so that the folding portion and the side edges of the functional element facing each other are connected;

[0019] The upper sub-board is laid flat, and the two sub-boards, the two adhesive layers and the functional elements are laminated together.

[0020] In one embodiment, in the step of cutting the adhesive layer from the film material according to the film cutting pattern, at least one positioning mark corresponding to the peripheral contour position of the sub-board is processed on the adhesive layer with the extended portion;

[0021] In the step of aligning and placing the adhesive layer with the extending portion on the sub-board at the lower layer, the positioning mark is used to align the adhesive layer with the peripheral contour of the sub-board at the lower layer.

[0022] In one embodiment, the positioning marks are provided in plurality and are arranged in sequence and at intervals around the peripheral contour of the sub-board.

[0023] In one embodiment, the positioning marks are cutting lines formed on the surface of the adhesive layer; the sum of the lengths of all the cutting lines is 30% to 50% of the length of the peripheral contour of the sub-board.

[0024] In one embodiment, after the step of folding the extended portion to obtain the folded portion, the method further includes the step of spot welding the folded portion and the main body of the adhesive layer using a welding gun.

[0025] In one embodiment, after the step of laminating the two sub-boards, the two adhesive layers and the functional elements, the step of trimming the composite board device with the functional elements along the peripheral contour of the sub-boards is also included to remove the film material of the adhesive layer extending to the peripheral area of ​​the sub-boards.

[0026] In one embodiment, in the step of adjusting the folding position of the folding portion to connect the sides of the folding portion and the functional element facing each other, the outer periphery of the functional element is retracted relative to the sub-board, and the edge filling area is arranged around the circumference of the functional element; the folding portion is provided in plurality and is arranged in sequence in the edge filling area around the circumference of the sub-board, and a first gap is formed between the sides of each folding portion and the functional element facing each other, and / or a second gap is formed between any two adjacent sides of the folding portion facing each other.

[0027] In one embodiment, the spacing S between each folding portion and the side edges of the functional element facing each other is 0.5 mm to 10 mm; and / or the spacing d between any two adjacent folding portions facing each other is 0.5 mm to 10 mm.

[0028] Compared with the method of providing a film sheet and processing the film sheet to obtain the filling material in the related art, the above-mentioned product, the composite panel device with functional elements and the manufacturing method thereof, has a folding portion corresponding to the filling area formed on at least one adhesive layer, and the folding portion is filled in the filling area, thereby not only achieving precise filling and improving the filling quality, but also improving the processing efficiency and reducing the material cost, and the structure and process are simple and easy to implement. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] Figure 1This is a structural diagram of a composite plate device with functional elements according to an embodiment of the present application.

[0030] Figure 2 for Figure 1 Cross-sectional structural diagram at AA.

[0031] Figure 3 for Figure 2 The structural diagram after removing the extension part in the shown structure.

[0032] Figure 4 This is a structural diagram of an embodiment of the present application in which an adhesive layer with an extended portion and a daughter board are aligned together.

[0033] 10. Sub-board; 20. Adhesive layer; 21. Stretching portion; 211. Folding portion; 212. Crease; 213. Padding margin adjustment area; 22. Main body; 23. First gap; 24. Second gap; 25. Positioning mark; 30. Functional element; 40. Padding area. DETAILED DESCRIPTION

[0034] To make the above-mentioned objects, features, and advantages of the present application more clearly understood, the specific embodiments of the present application are described in detail below with reference to the accompanying drawings. The following description sets forth many specific details to facilitate a full understanding of the present application. However, the present application can be implemented in many other ways than those described herein, and those skilled in the art can make similar improvements without violating the scope of the present application. Therefore, the present application is not limited to the specific embodiments disclosed below.

[0035] See Figures 1 to 4 , an embodiment of the present application provides a composite panel device with functional elements, specifically for example, laminated glass, the composite panel device with functional elements includes: two sub-panels 10, two adhesive layers 20 and functional elements 30. The two adhesive layers 20 are located between the two sub-panels 10. Optionally, among the two sub-panels 10, one sub-panel 10 is an outer panel facing the external environment, and the other sub-panel 10 is an inner panel facing the internal environment. The sub-panels 10 include but are not limited to light-transmitting substrates or opaque substrates, etc., and can be flexibly adjusted and set according to actual needs. When the composite panel device is laminated glass and is applied to a vehicle, the external environment refers to the outside of the vehicle, and the internal environment refers to the inside of the vehicle. In addition, the functional element 30 is located between the two adhesive layers 20, and the functional element 30 includes but is not limited to dimming functional parts, display functional parts, etc., which are respectively connected to the two sub-panels 10 through the two adhesive layers 20, and the boundary of the functional element 30 is retracted relative to the sub-panel 10. The spatial area of ​​the two sub-panels 10 corresponding to the functional element 30 is the filler area 40, and the filler area 40 is as shown in FIG. Figure 3 At least one adhesive layer 20 is provided with a folded portion 211 , and the folded portion 211 is filled in the edge filling area 40 .

[0036] In some embodiments, the functional element 30 includes, but is not limited to, a dimming functional layer or other functional layers. The dimming functional layer may be, but is not limited to, one or a combination of two or more of the following: an LC (dye liquid crystal film) film, a PDLC (polymer dispersed liquid crystal) film, a GHLC (guest-host liquid crystal), a PNLC (polymer network liquid crystal) functional element, a PSLC (polymer stabilized liquid crystal) film, a PILC (pixel isolation liquid crystal) film, an EC (electrochromic liquid crystal) film, or an SPD (suspended particle) film. Furthermore, the adhesive layer 20 in this embodiment may be made of, but is not limited to, PVB, EVA, TPU, or SGP.

[0037] Compared with the method of providing a film sheet and processing the film sheet to obtain a filling material in the related art, the above-mentioned composite panel device with functional elements has a folding portion 211 corresponding to the filling area 40 formed on at least one adhesive layer 20. The folding portion 211 is filled in the filling area 40, thereby not only achieving precise filling and improving the filling quality, but also improving the processing efficiency and reducing the material cost. The structure and process are simple and easy to implement.

[0038] It should be noted that the boundary of the functional element 30 is recessed relative to the sub-board 10, that is, the area of ​​the functional element 30 is smaller than the area of ​​the sub-board 10. Specifically, any one, two, or three sides of the functional element 30 may be recessed relative to the sub-board 10, with the remaining sides aligned with the outline of the sub-board 10, and the resulting filler region 40 located on one, two, or three sides of the functional element 30; or all sides may be recessed relative to the sub-board 10, with the resulting filler region 40 arranged circumferentially around the functional element 30. In this embodiment, the example of all sides of the functional element 30 being recessed relative to the sub-board 10 will be used for explanation, but this is not limiting, as the functional element 30 can also be flexibly adjusted according to actual needs and adopt various other recessing methods, which will not be discussed in detail herein.

[0039] In some embodiments, the folding direction of the folding portion 211 of the adhesive layer 20 can be either bent in a direction facing each other or bent in a direction away from each other. Specifically in this embodiment, the folding portion 211 of the lower adhesive layer 20 is bent toward one side of the upper adhesive layer 20. In other words, the folding portion 211 of the lower adhesive layer 20 is arranged on the side facing the upper adhesive layer 20. In addition, the folding portion 211 also cooperates with the edge of the functional element 30 to form a gap or abut against each other. In addition, the folding mark 212 of the lower adhesive layer 20 where the bending occurs is only one and extends to the outside of the two sub-boards 10, for example. In this way, when the composite board device with functional elements is trimmed in the subsequent steps, the excess adhesive film material can be removed, which can improve the processing quality of the composite board device with functional elements.

[0040] In some embodiments, the number of folds of the folded portion 211 of the adhesive layer 20 includes, but is not limited to, 1, 2, 3, or more times, which can be determined based on the thickness of the functional element 30 and the thickness of the adhesive layer 20. For example, when the thickness of the functional element 30 is relatively large, the number of folds of the folded portion 211 of the adhesive layer 20 can be set to multiple times, thereby increasing the thickness of the folded portion 211 to be the same as or close to the thickness of the functional element 30, so as to achieve better filling in the filler area 40. Specifically, the thickness of the adhesive layer 20 in this embodiment is, for example, set to be the same or almost the same as the thickness of the functional element 30. Almost the same means that the thickness deviation is, for example, controlled within 50%. Therefore, the number of folds is sufficient to be 1, and there is no need to use more folds, thereby improving the processing quality of the composite panel device with functional elements.

[0041] In some embodiments, one of the adhesive layers 20 is provided with a folding portion 211, while the other adhesive layer 20 does not need to be provided with a folding portion 211. In this way, it is sufficient to design the folding portion 211 on only one of the adhesive layers 20, and the contour shape and size of the other adhesive layer 20 can still be designed according to the contour shape and size of the sub-board 10, thereby improving production efficiency. Of course, both adhesive layers 20 can also be provided with a folding portion 211. Specifically, the folding portions 211 of the two adhesive layers 20 can be filled in the filler area 40 in a manner of overlapping each other, so that the thickness of the two adhesive layers 20 after overlapping each other is larger, which can adapt to the functional elements 30 with relatively larger thickness; or they can be filled in one filler area 40 in a complementary manner or in different filler areas 40 respectively; or they can be filled in the filler area 40 in other ways.

[0042] It should be noted that, in this embodiment, the unfolding is performed by taking a case where one of the adhesive layers 20 is provided with a folding portion 211 as a specific example, but the present invention is not limited thereto.

[0043] The thickness of the functional element 30 is D1. In addition, the thickness of the folded portion 211 filling the edge filling area 40 is D2, which refers to the thickness of the adhesive film material filling the edge filling area 40. Specifically, when only one adhesive layer 20 has a folded portion 211, or both adhesive layers 20 have folded portions 211 and are complementary to each other, the thickness D2 corresponds to, for example, the thickness of the adhesive layer 20; when both adhesive layers 20 have folded portions 211 and are superimposed on each other, the thickness D2 corresponds to, for example, twice the thickness of the adhesive layer 20. In one embodiment, 0.5≤D2 / D1≤2. Specifically, the thickness D2 includes but is not limited to 0.5D1, 0.8D1, D1, 1.2D1, 1.5D1, 1.8D1, or 2D1. In this way, the thickness D2 of the folded portion 211 is set to a more appropriate size, which can improve the quality of the product edge filling.

[0044] See also Figures 2 to 4 In one embodiment, the adhesive layer 20 further includes a main portion 22 integrally connected to the folded portion 211 and conforming to the contour of the sub-panel 10. The main portion 22 is the portion of the adhesive layer 20 that overlaps the sub-panel 10 perpendicular to the surface of the adhesive layer 20. Specifically, the folded portion 211 is superimposed on the main portion 22 and secured to the main portion 22 via spot welding. This prevents the adhesive layer 20 from shifting during the lamination process of the composite panel assembly containing functional components, thereby improving the quality of the finished edge.

[0045] In one specific embodiment, the outer periphery of the functional element 30 is indented relative to the sub-plate 10, and the filler area 40 is arranged around the circumference of the functional element 30. Four folding portions 211 are provided and are sequentially arranged in the filler area 40 around the circumference of the sub-plate 10. A first gap 23 is formed between each folding portion 211 and the side facing each other of the functional element 30, and a second gap 24 is formed between any two adjacent folding portions 211 facing each other. In other words, the outer contour dimensions of each folding portion 211 are not too large, so that each folding portion 211 is connected to the functional element 30 without overlapping each other, and any two adjacent folding portions 211 are connected together without overlapping each other. In addition, the outer contour dimensions of each folding portion 211 are large enough to fill as much of the filler area as possible, thereby improving the quality of the product filler.

[0046] See also Figure 2 In some embodiments, the spacing S between each folding portion 211 and the side edges of the functional element 30 facing each other includes but is not limited to 0.5 mm to 10 mm, specifically for example 0.5 mm, 2 mm, 5 mm, 8 mm or 10 mm, etc.

[0047] See also Figure 1In some embodiments, the distance d between the sides of any two adjacent folding portions 211 facing each other includes but is not limited to 0.5 mm to 10 mm, specifically 0.5 mm, 2 mm, 5 mm, 8 mm or 10 mm, etc.

[0048] In some embodiments, the outer contours and dimensions of the folded portions 211 can be consistent or different, and are not limited to this. These dimensions can be flexibly adjusted and configured based on actual needs. Specifically, to facilitate processing of the adhesive layer 20, the outer contours and dimensions of the two folded portions 211 located on opposite sides of the functional element 30 are consistent or comparable.

[0049] See also Figure 2 In one embodiment, a portion of the folded portion 211 extends beyond the periphery of the two sub-panels 10, with the fold 212 of the folded portion 211 located within the periphery of the two sub-panels 10. This allows for a larger width W of the folded portion 211 than the distance b between the side edges of the functional element 30 and the side edges of the sub-panels 10. This provides margin for adjusting the distance S between the folded portion 211 and the functional element 30 to an appropriate value. Furthermore, after the lamination step of the composite panel assembly with functional elements is completed, the composite panel assembly with functional elements is subsequently trimmed to remove excess adhesive film material, thereby improving the processing quality of the composite panel assembly with functional elements.

[0050] In one embodiment, the distance L between the fold 212 and the edge profile of the sub-panel 10 includes, but is not limited to, 5 mm to 50 mm, specifically 5 mm, 10 mm, 25 mm, 50 mm, etc. Thus, the distance L is appropriately set. On the one hand, a larger distance L can be adjusted to accommodate sub-panels 10 of different curvatures to ensure the edge fillet connection; on the other hand, the distance L is not too large to cause material waste. In other words, the distance L is relatively small, thereby saving material and reducing costs.

[0051] See also Figure 2 and Figure 4 In one embodiment, the adhesive layer 20 having the folded portion 211 is provided with at least one positioning mark 25 arranged corresponding to the peripheral contour of the sub-panel 10. Thus, before the lamination step of the composite panel device with functional elements, the unfolded adhesive layer 20 can be aligned with the peripheral contour of the sub-panel 10 using the positioning mark 25. The adhesive layer 20 is then folded so that the folded portion 211 overlaps the main body 22 of the adhesive layer 20 and connects with the side edge of the functional element 30. It can be seen that the positioning mark 25 plays a role in alignment, enabling the folded adhesive layer 20 to be precisely aligned with the sub-panel 10, thereby improving the edge filling quality of the composite panel device with functional elements.

[0052] In one embodiment, a plurality of positioning marks 25 are provided and are sequentially spaced around the perimeter of the daughter board 10 .

[0053] In one embodiment, the positioning mark 25 includes but is not limited to a cutting line formed on the surface of the adhesive layer 20. In addition, the sum of the lengths of all the cutting lines is 30% to 50% of the length of the peripheral outline of the daughter board 10.

[0054] In some embodiments, the positioning marks 25 include but are not limited to being distributed on opposite sides and a middle portion of the peripheral contour of the daughter board 10 and are not connected to each other.

[0055] In one embodiment, a product includes a composite panel device with functional elements according to any of the above embodiments, and the product includes any one or a combination of a display cabinet, a building window curtain wall, a car, a ship, a locomotive, a human-computer interaction, an electrical appliance, and an information kiosk.

[0056] The above-mentioned product has a folding portion 211 corresponding to the filling area 40 formed on at least one adhesive layer 20. The folding portion 211 is filled in the filling area 40, thereby not only achieving precise filling and improving the filling quality, but also improving processing efficiency and reducing material costs. The structure and process are simple and easy to implement.

[0057] See also Figures 1 to 4 In one embodiment, a method for manufacturing a composite plate device having a functional element according to any of the above embodiments comprises the following steps:

[0058] Step S10: designing a film cutting pattern according to the outer contour and size of the daughter board 10;

[0059] Step S20: cutting the adhesive layer 20 on the film material according to the film cutting pattern, so that an extended portion 21 is formed around at least one adhesive layer 20;

[0060] Step S30: After the adhesive layer 20 with the extended portion 21 is aligned and placed on the lower sub-board 10, the extended portion 21 is folded to obtain a folded portion 211;

[0061] Specific reference Figure 2 and Figure 4 , Figure 4 Schematically shows that there are, for example, four extending portions 21 , which are arranged in sequence and at intervals around the peripheral contour of the daughter board 10 . Figure 4 Two oblique filling areas are shown in FIG. 1 , wherein one oblique filling area is arranged on the stretching portion 21, specifically the folding portion 211, and the other oblique filling area is arranged on the padding area 40. The blank area between the two oblique filling areas is specifically the padding margin adjustment area 213, which corresponds to Figure 2The middle extension portion 21 extends beyond the two sub-panels 10. The extension portion 21 is folded in the edge filler adjustment area 213 so that one of the diagonal filler areas is flipped 180° and completely overlaps with the other diagonal filler area, thus allowing the folded portion 211 to fill the edge filler area 40.

[0062] Step S40: adjusting the position of the fold 212 of the folding portion 211 so that the folding portion 211 and the side of the functional element 30 facing each other are connected;

[0063] Specifically, the outer periphery of the functional element 30 is retracted relative to the sub-plate 10, and the filler area 40 is arranged around the circumference of the functional element 30. There are four folding portions 211 and they are arranged in sequence in the filler area 40 around the circumference of the sub-plate 10. A first gap 23 is formed between each folding portion 211 and the side facing each other of the functional element 30, and a second gap 24 is formed between the sides facing each other of any two adjacent folding portions 211. In other words, the outer contour dimensions of each folding portion 211 are not too large, so that each folding portion 211 is connected to the functional element 30 without overlapping each other, and any two adjacent folding portions 211 are connected together without overlapping each other. In addition, the outer contour dimensions of each folding portion 211 are large enough to fill as much as possible in the filler area, thereby improving the filler quality of the product. Please refer to Figure 2 In some embodiments, the distance S between each folding portion 211 and the side of the functional element 30 facing each other includes but is not limited to 0.5 mm to 10 mm, specifically 0.5 mm, 2 mm, 5 mm, 8 mm or 10 mm, etc. Figure 1 In some embodiments, the distance d between the sides of any two adjacent folding portions 211 facing each other includes but is not limited to 0.5 mm to 10 mm, specifically 0.5 mm, 2 mm, 5 mm, 8 mm or 10 mm, etc.

[0064] Step S50 , laying the upper daughter board 10 flat, and laminating the two daughter boards 10 , the two adhesive layers 20 and the functional element 30 .

[0065] Compared with the method of providing a film sheet and processing the film sheet to obtain a filling material in the related art, the above-mentioned method of manufacturing a composite panel device with functional elements has a folding portion 211 corresponding to the filling area 40 formed on at least one adhesive layer 20, and the folding portion 211 is filled in the filling area 40, thereby not only achieving precise filling and improving the filling quality, but also improving the processing efficiency and reducing the material cost, and the structure and process are simple and easy to implement.

[0066] See also Figures 2 to 4In some embodiments, one adhesive layer 20 has an extended portion 21 around its periphery, specifically serving as the lower adhesive layer and capable of being folded to form a folded portion 211. The other adhesive layer 20 has a periphery that is the same shape as the outline of the daughter board 10, i.e., the extended portion 21 is not cut, serving as the upper adhesive layer. Specifically, after step S30 and before step S40, the process further includes step S32, in which the functional element 30 is placed on the lower daughter board 10. Furthermore, after step S40 and before step S50, the process further includes step S42, in which the upper adhesive layer is flatly placed on the functional element 30, and the upper adhesive layer is aligned with the periphery of the daughter board 10.

[0067] In one embodiment, during the step of cutting the adhesive layer 20 from the film material according to the film cutting pattern, at least one positioning mark 25 corresponding to the peripheral contour of the daughter board 10 is machined on the adhesive layer 20 with the extension 21. Furthermore, during the step of aligning the adhesive layer 20 with the extension 21 onto the underlying daughter board 10, the positioning mark 25 is used to align the adhesive layer 20 with the peripheral contour of the underlying daughter board 10. This allows for precise alignment between the adhesive layer 20 with the extension 21 and the daughter board 10, thereby improving the quality of the finished edge.

[0068] It should be noted that the film cutting pattern includes but is not limited to the pattern designed for the drawing software, that is, according to the peripheral contour shape of the sub-board 10, the film cutting pattern is designed accordingly through the drawing software, and the cutting device can process the adhesive layer 20 with the extension part 21 and the positioning mark 25 on the film material according to the film cutting pattern.

[0069] In some embodiments, the folded portion 211 extends beyond the periphery of the two sub-panels 10. The fold 212 of the folded portion 211 is located at the periphery of the two sub-panels 10, and the spacing L between the folded portion 211 and the edge contour of the sub-panels 10 includes, but is not limited to, 5 mm to 50 mm. This spacing L is appropriately sized, allowing it to serve as a margin for adjusting the curvature of sub-panels 10, thereby improving the quality of the trim. Specifically, by adjusting the position of the fold 212, that is, adjusting the spacing L, the spacing S between the folded portion 211 and the functional element 30 can be adjusted to an appropriate size.

[0070] In one embodiment, after folding the extended portion 21 to form the folded portion 211, the method further includes step S31 of spot welding the folded portion 211 to the main portion 22 of the adhesive layer 20 using a welding torch. This allows the folded portion 211 to be securely connected to the main portion 22 via spot welding, preventing the adhesive layer 20 from shifting during the lamination process of the composite panel device having functional elements, thereby improving the quality of the product's edge filling.

[0071] In one embodiment, the method for manufacturing a composite panel device with functional elements further includes, after step S50, step S60: trimming the composite panel device with functional elements along the perimeter of the sub-panel 10 to remove any adhesive film material from the adhesive layer 20 that extends beyond the periphery of the sub-panel 10. Trimming and removing excess adhesive film material can improve the product quality of the composite panel device with functional elements.

[0072] It should be noted that if an element is referred to as being "fixed to" or "disposed on" another element, it may be directly on the other element or there may be an intermediate element. If an element is considered to be "connected to" another element, it may be directly connected to the other element or there may be an intermediate element. If any, the terms "vertical", "horizontal", "upper", "lower", "left", "right" and similar expressions used in this application are for illustrative purposes only and do not represent the only implementation method.

[0073] The technical features of the above embodiments can be combined arbitrarily. To make the description concise, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0074] The above embodiments merely illustrate several implementation methods of the present application. While the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the patent application. It should be noted that a person of ordinary skill in the art may make various modifications and improvements without departing from the spirit of the present application, all of which fall within the scope of protection of the present application. Therefore, the scope of protection of the present patent application shall be determined by the appended claims.

Claims

1. A composite panel device with functional elements, characterized in that: The composite plate device with functional elements comprises: Two daughter boards; two adhesive layers, located between the two sub-boards; and The functional element is located between the two adhesive layers. The functional element is connected to the two sub-boards respectively through the two adhesive layers. The boundary of the functional element is retracted relative to the sub-board. The space area of ​​the two sub-boards corresponding to the functional element outside the functional element is the filling area. At least one of the adhesive layers is provided with a folding portion, and the folding portion fills the filling area.

2. The composite panel device with functional elements according to claim 1, characterized in that The thickness of the functional element is D1, the thickness of the folded portion is D2, and 0.5≤D2 / D1≤2.

3. The composite panel device with functional elements according to claim 1, characterized in that The folded portion of the adhesive layer is bent toward the side facing the other adhesive layer and cooperates with the edge of the functional element to form a gap or abut against each other; and / or, part of the structure of the folded portion extends to the peripheral area of ​​the two sub-boards, and the fold of the folded portion is located in the peripheral area of ​​the two sub-boards.

4. The composite panel device with functional elements according to claim 3, characterized in that A distance L between the fold and the edge contour of the sub-plate is 5 mm to 50 mm.

5. A product, characterized in that The product comprises the composite panel device with functional elements according to any one of claims 1 to 4.

6. A method for manufacturing a composite plate device with functional elements according to any one of claims 1 to 4, characterized in that: The production method comprises the following steps: Design the film cutting pattern according to the outline and size of the sub-board; Cutting the adhesive layer on the film material according to the film cutting pattern, so that at least one of the adhesive layers includes a main body portion adapted to the contour shape of the sub-board and an extension portion connected to the main body portion; After the adhesive layer with the extended portion is aligned and placed on the sub-board of the lower layer, the extended portion is folded to obtain a folded portion; Adjusting the fold position of the folding portion so that the folding portion and the side edges of the functional element facing each other are connected; The upper sub-board is laid flat, and the two sub-boards, the two adhesive layers and the functional elements are laminated together.

7. The method for manufacturing a composite panel device with functional elements according to claim 6, characterized in that: In the step of cutting the adhesive layer from the film material according to the film cutting pattern, at least one positioning mark corresponding to the peripheral contour position of the sub-board is processed on the adhesive layer with the extended portion; In the step of aligning and placing the adhesive layer with the stretching portion on the sub-board at the lower layer, the positioning mark is used to align the adhesive layer with the peripheral contour of the sub-board at the lower layer.

8. The method for manufacturing a composite panel device with functional elements according to claim 7, characterized in that: The positioning marks are provided in plurality and are arranged in sequence and at intervals around the peripheral contour of the sub-board.

9. The method for manufacturing a composite panel device with functional elements according to claim 8, characterized in that: The positioning marks are cutting lines formed on the surface of the adhesive layer; the sum of the lengths of all the cutting lines is 30% to 50% of the length of the peripheral contour of the sub-board.

10. The method for manufacturing a composite panel device with functional elements according to claim 6, characterized in that: After the step of folding the extended portion to obtain the folded portion, the method further includes the step of spot welding the folded portion and the main body of the adhesive layer using a welding gun.

11. The method for manufacturing a composite panel device with functional elements according to claim 6, characterized in that: After the step of laminating the two sub-boards, the two adhesive layers and the functional elements, the method further includes the following steps: trimming the composite board device with the functional elements along the peripheral contour of the sub-boards to remove the film material of the adhesive layer extending to the peripheral area of ​​the sub-boards.

12. The method for manufacturing a composite panel device with functional elements according to claim 6, characterized in that: In the step of adjusting the folding position of the folding portion to connect the sides of the folding portion and the functional element facing each other, the outer periphery of the functional element is retracted relative to the sub-board, and the edge filling area is arranged around the circumference of the functional element; the folding portion is provided in plurality and is arranged in sequence in the edge filling area around the circumference of the sub-board, and a first gap is formed between the sides of each folding portion and the functional element facing each other, and / or a second gap is formed between the sides of any two adjacent folding portions facing each other.

13. The method for manufacturing a composite panel device with functional elements according to claim 12, characterized in that: The distance S between each folded portion and the side edges of the functional element facing each other is 0.5 mm to 10 mm; and / or the distance d between the side edges of any two adjacent folded portions facing each other is 0.5 mm to 10 mm.

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