Laminated assembly and vehicle

Abstract

The invention relates to a laminated assembly and a vehicle. The laminated assembly comprises a first transparent substrate, a first bonding layer, a functional layer, a second bonding layer, a separation layer, a third bonding layer and a second transparent substrate which are sequentially laminated. By adopting the laminated assembly, the diversified transmittance design requirements of the laminated assembly can be met.

Description

Technical Field

[0001] The present application relates to the field of glass technology, and in particular to a laminated component and a vehicle. Background Art

[0002] With the development of intelligent vehicles such as automobiles, laminated components such as intelligent glass are increasingly used in vehicles, such as realizing functions such as light emission, heat generation or display through intelligent glass. However, with the multi-scenario application of intelligent glass, the design of glass transmittance is also diverse. Based on this, it is urgent to provide a solution that can meet the diverse design requirements of intelligent glass transmittance. Summary of the invention

[0003] Based on this, it is necessary to provide a laminated component and a vehicle that can meet the transmittance design requirements in order to address the above technical issues.

[0004] In a first aspect, the present application provides a laminated component, which includes: a first transparent substrate, a first adhesive layer, a functional layer, a second adhesive layer, a partition layer, a third adhesive layer and a second transparent substrate stacked in sequence.

[0005] In one embodiment, the first bonding layer and / or the second bonding layer is used to inhibit or slow down ion migration in the functional layer.

[0006] In one embodiment, the transmittance of the third adhesive layer is different from the transmittance of the second adhesive layer.

[0007] In one embodiment, the barrier layer is an organic polymer film.

[0008] In one of the embodiments, the functional layer includes: a third transparent substrate, a conductive layer and a Mini-LED pixel array stacked in sequence; the third transparent substrate is adjacent to the first bonding layer.

[0009] In one embodiment, the third transparent substrate is an organic polymer film.

[0010] In one embodiment, at least one side of the barrier layer has haze diffusion particles.

[0011] In one embodiment, one side of the barrier layer has a prismatic microstructure.

[0012] In one embodiment, the barrier layer is a colored organic polymer film.

[0013] In one embodiment, the isolation layer includes a touch film and / or a heating film.

[0014] In one embodiment, the functional layer further includes a heating layer, and the heating layer is disposed between the third transparent substrate and the first bonding layer.

[0015] In one embodiment, the functional layer, the second adhesive layer and the barrier layer form a film layer assembly based on a pre-packaging process.

[0016] In a second aspect, the present application also provides a vehicle comprising the laminated assembly in the above-mentioned embodiment.

[0017] The above-mentioned laminated assembly and vehicle have at least the following beneficial effects:

[0018] By adding a partition layer between the third bonding layer and the second bonding layer, the third bonding layer material is effectively prevented from penetrating to the side where the functional layer is located, thereby avoiding problems such as abnormal appearance and function of the laminated component caused by the reaction between the third bonding layer and the functional layer. It is possible to flexibly select bonding materials with different transmittances as the third bonding layer according to transmittance requirements, thereby meeting the diverse transmittance design requirements of the laminated component without sacrificing the stability of the functional layer, and taking into account both the functional stability and transmittance design of the laminated component. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the conventional technology, the drawings required for use in the embodiments or the conventional technology descriptions are briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0020] Figure 1 is one of the cross-sectional exploded views of a stacked assembly in one embodiment;

[0021] Figure 2 The second cross-sectional exploded view of a stacked assembly in one embodiment;

[0022] Figure 3 A partial enlarged schematic diagram of a functional layer of a laminated component in one embodiment;

[0023] Figure 4 The third cross-sectional exploded view of a stacked assembly in one embodiment;

[0024] Figure 5 The fourth cross-sectional exploded view of a stacked assembly in one embodiment;

[0025] Figure 6 FIG5 is a fifth cross-sectional exploded view of a stacked assembly in one embodiment;

[0026] Figure 7 is a sixth cross-sectional exploded view of a stacked assembly in one embodiment;

[0027] Figure 8FIG7 is a seventh exploded cross-sectional view of a stacked assembly in one embodiment;

[0028] Fig. 9 FIG. 8 is an exploded cross-sectional view of a stacked assembly in one embodiment.

[0029] Explanation of the accompanying drawings: 2-first transparent substrate, 4-first bonding layer, 6-functional layer, 62-conductive layer, 64-flexible wire connecting device, 66-third transparent substrate, 68-Mini-LED pixel array, 69-heating layer, 8-second bonding layer, 10-isolation layer, 102-haze diffusion particles, 104-prismatic microstructure, 12-third bonding layer, 14-second transparent substrate. DETAILED DESCRIPTION

[0030] In order to facilitate the understanding of the present invention, the present invention will be described more fully below with reference to the relevant drawings. Preferred embodiments of the present invention are provided in the drawings. However, the present invention can be implemented in many different forms and is not limited to the embodiments described herein. On the contrary, the purpose of providing these embodiments is to make the understanding of the disclosure of the present invention more thorough and comprehensive.

[0031] It should be noted that when an element is referred to as being "fixed to" another element, it may be directly on the other element or there may be a central element. When an element is considered to be "connected to" another element, it may be directly connected to the other element or there may be a central element at the same time. The terms "vertical", "horizontal", "left", "right" and similar expressions used herein are for illustrative purposes only.

[0032] In the accompanying drawings, the sizes of layers and regions may be exaggerated for clarity. It is understood that when a layer or element is referred to as being "on" another layer or substrate, the layer or element may be directly on the other layer or substrate, or there may be intervening layers. In addition, it is also understood that when a layer is referred to as being "between" two layers, the layer may be the only layer between the two layers, or there may be one or more intervening layers. In addition, the same reference numerals always represent the same elements.

[0033] Hereinafter, although terms such as "first", "second", etc. may be used to describe various components, these components are not necessarily limited to the above terms. The above terms are only used to distinguish one component from another component. It will also be understood that expressions used in the singular form include plural expressions, unless the expression in the singular form has a significantly different meaning in the context. In addition, in the following embodiments, it will also be understood that the terms "comprising" and / or "having" used herein illustrate the presence of the stated features or components, but do not exclude the presence or addition of one or more other features or components.

[0034] In the following embodiments, when a layer, region, or element is "connected", it can be interpreted that the layer, region, or element is not only directly connected but also connected through other constituent elements placed therebetween. For example, when a layer, region, element, etc. is described as being connected or electrically connected, the layer, region, element, etc. can be connected or electrically connected not only directly or directly, but also through another layer, region, element, etc. placed therebetween.

[0035] As used in the application documents, the term "and / or" includes any and all combinations of one or more of the related listed items. When a statement such as "at least one (one) of..." is placed after a list of elements (elements), it modifies the entire list of elements (elements), rather than modifying the individual elements (elements) in the list (elements).

[0036] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as those generally understood by those skilled in the art to which the present invention pertains. The terms used herein in the specification of the application are only for the purpose of describing specific embodiments and are not intended to limit the present application. The term "and / or" used herein includes any and all combinations of one or more of the related listed items.

[0037] It should also be understood that the terms “include / comprises” or “having” and the like specify the presence of stated features, wholes, steps, operations, components, parts or combinations thereof, but do not exclude the possibility of the presence or addition of one or more other features, wholes, steps, operations, components, parts or combinations thereof.

[0038] As described in the background technology, smart glass usually has functions such as luminescence, heat generation, display and touch. In some embodiments, the smart glass includes a first transparent substrate, a first bonding layer, a functional layer and a second bonding layer stacked in sequence. In order to avoid the functional layer from reacting with the first bonding layer or the second bonding layer during long-term use and affecting the reliability of the glass, the material selection for the first bonding layer and the second bonding layer is relatively limited. For example, the first bonding layer and the second bonding layer both have high transmittance. The design of the first bonding layer and the second bonding layer cannot meet the transmittance design requirements. When adding other bonding layers, the applicant found that the added bonding layer may react with the functional layer, resulting in discoloration in appearance, short circuit and other problems after the laminated component has been aged at high temperature.

[0039] Based on this, in an exemplary embodiment, Figure 1 As shown, the present application provides a laminated component, including a first transparent substrate 2, a first adhesive layer 4, a functional layer 6, a second adhesive layer 8, a barrier layer 10, a third adhesive layer 12 and a second transparent substrate 14 stacked in sequence.

[0040] The partition layer 10 may be used to partition the second adhesive layer and the third adhesive layer 12 to prevent the third adhesive layer 12 from penetrating into the second adhesive layer 8 .

[0041] For example, as described above, due to the material selection of the first adhesive layer and the second adhesive layer, the diversified transmittance design requirements for intelligent glass cannot be met. In order to achieve the diversified transmittance design requirements, the third adhesive layer 12 and the second adhesive layer 8 with different transmittances can be directly stacked and laminated according to the needs to change the transmittance of the laminated assembly. However, after the laminated assembly constructed in the above manner was powered on for 1000 hours with a DC power supply voltage of 12V and placed in an environment of 50℃-90℃ for reliability testing, it was found that when the third adhesive layer 12 and the second adhesive layer 8 with different transmittances were directly stacked and laminated according to the needs, the laminated assembly had reliability problems such as discoloration of the appearance. The inventors have found that when the third adhesive layer 12 and the second adhesive layer 8 with different transmittances are directly stacked and laminated according to the needs, the harmful components (chloride ions, water molecules, oxygen molecules, special functional group hydroxyl groups, catalysts, etc.) in the third adhesive layer 12 will penetrate into the functional layer 6 through the second adhesive layer 8 and react with the functional layer 6, resulting in ion migration, causing discoloration and functional failure of the functional layer 6. Obviously, the method of directly stacking the third adhesive layer 12 and the second adhesive layer 8 together for bonding cannot ensure the reliability of the laminated assembly while meeting the diverse transmittance design requirements. If the adhesive material of the third adhesive layer 12 is replaced, the selection range is limited due to the particularity of the material; if it is redesigned and customized, the R&D and manufacturing costs will increase, and a lot of reliability verification will be required, which is time-consuming and labor-intensive; and it is difficult to meet the transmittance design requirements by increasing the thickness of the second adhesive layer 8. Based on this, if Figure 1 As shown, the present application adds a barrier layer 10 between the third adhesive layer 12 and the second adhesive layer 8 to prevent the adhesive material in the third adhesive layer 12 from directly entering the second adhesive layer 8 and causing reliability problems. The material of the barrier layer 10 can also be selected from transparent films with different transmittances according to transmittance requirements. Figure 1 When the laminated assembly shown is subjected to the reliability high-temperature operation verification as described above, since the third adhesive layer 12 and the second adhesive layer 8 are separated by the isolation layer 10, the material of the third adhesive layer 12 cannot directly contact with the functional layer 6 and react. Based on this, the selection of the material transmittance of the third adhesive layer can be more flexible and can be selected according to the actual application scenario without being limited by the material properties, thereby ensuring the reliability of the laminated assembly while meeting the diverse transmittance design requirements of the laminated assembly.

[0042] The above-mentioned laminated components, by adding a partition layer between the third adhesive layer and the second adhesive layer, effectively prevent the reliability problems caused by the direct contact reaction between the third adhesive layer material and the function, and at the same time allow the selection of transparent films with different transmittances as the partition layer according to the transmittance requirements, and the selection of adhesive materials with different transmittances as the third adhesive layer according to the transmittance requirements, thereby meeting the diversified transmittance design requirements of the laminated components without sacrificing the stability of the functional layer, and achieving a dual improvement in functionality and reliability. It not only solves the technical difficulties under the traditional stacking method, but also avoids the high R&D cost and long reliability verification process, providing an efficient and economical solution for the application of laminated components in automotive glass.

[0043] In one embodiment, Figure 1 The first bonding layer 4 and / or the second bonding layer 8 are used to inhibit or slow down ion migration in the functional layer.

[0044] Among them, the material that can inhibit or slow down the ion migration in the functional layer may refer to a material that does not contain chloride ions, water molecules, oxygen molecules, special functional group hydroxyl groups, catalysts, or has extremely low content. Such materials can operate at high voltage or high current at room temperature, or operate at low voltage or low current in a high temperature test chamber (not limited to the high temperature range), and the appearance does not change color and the conductive function is normal after aging for more than 1000 hours.

[0045] In an exemplary embodiment, the first bonding layer 4 and / or the second bonding layer 8 may be a single-layer structure composed of a material capable of inhibiting or slowing down ion migration in the functional layer.

[0046] In an exemplary embodiment, the first bonding layer 4 and / or the second bonding layer 8 may also be a multi-layer composite structure composed of materials capable of inhibiting or slowing down ion migration in the functional layer.

[0047] For example, based on the setting of the isolation layer to meet the transmittance design requirements, one of the first bonding layer 4 and the second bonding layer 8 can adopt a single-layer or multi-layer composite structure composed of a material that can inhibit or slow down the ion migration in the functional layer, according to the functional form of the actual product; or the first bonding layer 4 and the second bonding layer 8 can both adopt a single-layer or multi-layer composite structure composed of a material that can inhibit or slow down the ion migration in the functional layer. While ensuring the normal appearance and function of the stacked component, the material selection of the bonding layer is further optimized to meet a wider range of transmittance design requirements and process design requirements.

[0048] In an exemplary embodiment, Figure 1The material used in the first bonding layer 4 and / or the second bonding layer 8 shown in the figure, which can inhibit or slow down the ion migration of the functional layer, can be at least one of ethylene-vinyl acetate copolymer, polyethylene octene co-elastomer, water glue and optical transparent glue. Such materials have good chemical corrosion resistance and electrical insulation, and are not easy to react with the metal atoms in the functional layer 6, so they can effectively prevent the migration of metal atoms. At the same time, such materials can flow and solidify under heating conditions, and are suitable for hot pressing molding processes, which helps to form a tight and uniform bonding layer, and improve the overall strength and sealing of the entire laminated assembly.

[0049] In addition, the inventors further discovered that the reliability problems of smart glass under long-term operation are mostly appearance discoloration and line short circuit problems. The main reason for the appearance discoloration is that in order to realize functions such as light emission, display, heat generation and touch control, a conductive layer is set in the smart glass. The metal atoms on the conductive layer will react with the adhesive material of the smart glass under the action of the electric field force between the positive and negative electrodes when they are powered on for a long time. The metal atoms are corroded by harmful components such as water molecules, chloride ions, and catalysts in the adhesive material and transformed into ionic form. Under the dual action of voltage and high temperature, the metal atoms are accelerated to move from the positive electrode to the negative electrode in the form of ions. The unevenly distributed ions between the positive and negative electrodes form a micro short circuit, which causes the smart glass to have appearance discoloration and line short circuit problems.

[0050] Based on the above reasons, in an exemplary embodiment, Figure 2 As shown, the present application provides a laminated component, which includes a first transparent substrate 2, a first adhesive layer 4, a functional layer 6, a second adhesive layer 8 and a second transparent substrate 14 stacked in sequence. Among them, a conductive layer 62 is provided on the surface of the functional layer 6 close to the second adhesive layer 8, and the second adhesive layer 8 is used to inhibit or slow down the ion migration of the conductive layer 62.

[0051] The material capable of inhibiting or slowing down the ion migration of the conductive layer 62 may refer to a material capable of operating at a high voltage or a high current at room temperature, or operating at a low voltage or a low current in a high temperature test chamber (not limited to the high temperature range), and having a normal conductive function without discoloration after aging for more than 1000 hours. The first transparent substrate 2 and the second transparent substrate 14 may be glass substrates. The functional layer 6 may refer to a structural layer having functions such as light emission, display, heating and touch control, such as Figure 1As shown, a conductive layer 62 is provided on the surface of the functional layer 6 close to the second adhesive layer 8. The conductive layer 62 may refer to a metal mesh conductive film. Such metal mesh conductive films are mainly formed by growing a conductive metal mesh pattern on a plastic film such as glass or organic polymer using metal materials such as silver and copper, and have the characteristics of low resistivity and good bending resistance. The conductive layer 62 may also be an ITO (indium tin oxide) film; the conductive layer 62 may also be a nano silver wire laminated film, etc. In addition, the functional layer 6 may also be provided with a flexible wire connection device 64 connected to the conductive layer 62, so that the conductive layer 62 can be connected to the driving board through the flexible wire connection device 64, thereby realizing functions such as light emission, display, heating and touch control.

[0052] Exemplarily, the stacked assembly is composed of a first transparent substrate 2, a first adhesive layer 4, a functional layer 6 (including a conductive layer 62), a second adhesive layer 8 and a second transparent substrate 14 stacked in sequence. When the stacked assembly is bonded, the first adhesive layer 4 is not in contact with the conductive layer 62. The material selection of the first adhesive layer 4 can be selected according to the requirements of transmittance, lamination process, etc. For example, an adhesive material (such as PVB) containing chloride ions, water molecules, oxygen molecules, special functional group hydroxyl groups, catalysts, etc. can be selected. The material model is not specifically limited here. The second adhesive layer 8, which is in direct contact with the conductive layer 62, is selected from a material that can inhibit or slow down the ion migration of the conductive layer 62. Since the material does not contain chloride ions, water, special functional group hydroxyl groups, catalysts, etc. or contains a very low proportion, it can effectively prevent or slow down the problem that the metal atoms in the conductive layer 62 react with the surrounding environment and migrate from the positive electrode to the negative electrode in the form of ions during the long-term power-on process under the action of the electric field force. The stacked components based on the above structure can significantly reduce or even avoid the problems of appearance discoloration and line short circuit caused by uneven distribution of metal atoms even under long-term use and continuous power supply.

[0053] The above-mentioned laminated component, by using a material that can inhibit or slow down the ion migration of the conductive layer as the adhesive material on the functional layer with a conductive layer on one side, effectively prevents the conductive layer from reacting with the adhesive material during long-term use, resulting in the migration of metal atoms (such as copper, silver and other metals) in the conductive layer, thereby significantly reducing the appearance discoloration problem and line short circuit problem caused by uneven distribution of metal atoms, not only ensuring the stability and reliability of the laminated component under long-term working conditions, but also extending its service life. At the same time, only the material of the second adhesive layer that is in direct contact with the conductive layer is limited, while the material selection for the first adhesive layer is more flexible, which ensures the reliability of the laminated component when used as automotive glass, and can meet different transmittance design requirements or process design requirements to a certain extent.

[0054] In an exemplary embodiment, the second adhesive layer 8 may be a single-layer or multi-layer composite structure composed of a material capable of inhibiting or slowing down ion migration of the conductive layer 62 .

[0055] In an exemplary embodiment, Figure 2 The material of the second adhesive layer 8 shown in the figure is at least one of ethylene-vinyl acetate copolymer, polyethylene octene co-elastic, water glue and optical transparent glue. Such materials have good chemical corrosion resistance and electrical insulation, and are not easy to react with metal atoms in the conductive layer 62, so they can effectively prevent the migration of metal atoms. At the same time, such materials can flow and solidify under heating conditions, and are suitable for hot pressing molding process, which helps to form a tight and uniform adhesive layer, and improve the overall strength and sealing of the entire laminated assembly.

[0056] In this embodiment, a material that can inhibit or slow down the ion migration of the conductive layer is selected as the material of the second bonding layer. Based on the ability of this type of material to inhibit or slow down the ion migration of the conductive layer, as well as its comprehensive excellent mechanical properties, chemical stability and processing characteristics, the stacked component of the present application can effectively solve the problems of discoloration and short circuit, thereby ensuring the long-term reliability of the product.

[0057] In an exemplary embodiment, the transmittance of the third adhesive layer 12 is different from the transmittance of the second adhesive layer 8 .

[0058] For example, in the above embodiment, by setting the partition layer 10, the reliability of the laminated assembly is ensured while the diversified transmittance design requirements of the laminated assembly are realized. When the laminated assembly is used as automotive glass on an automobile, since the materials of the first adhesive layer 4 and the second adhesive layer 8 that meet the above reliability requirements are mostly transparent, the transmittance is usually high (about 90%), which cannot meet the transmittance requirements of automotive glass (such as the transmittance requirement of the front windshield is not less than 70%, and the door glass, sunroof, and rear windshield are designed according to the transmittance requirements). Therefore, it is necessary to select a material with lower transmittance as the third adhesive layer 12 to change the overall transmittance of the laminated assembly, so as to adapt to the different transmittance requirements of different automotive glasses.

[0059] In this embodiment, by introducing a third adhesive layer with lower transmittance, the overall transmittance of the laminated assembly is effectively adjusted so that it can meet the specific requirements of automotive glass for transmittance, and meet the different requirements of different types of automotive glass (such as windshield, door glass, sunroof, rear windshield) for light transmittance. While ensuring safety performance, the optical performance is optimized, providing automobile manufacturers with more flexible design options.

[0060] In an exemplary embodiment, the barrier layer 10 may be a film layer composed of a thin film material with high transmittance and low haze. Optionally, the barrier layer 10 may be a single-layer structure composed of a thin film material with high transmittance and low haze, or a multi-layer composite structure composed of a thin film material with high transmittance and low haze.

[0061] Among them, thin film materials with high transmittance and low haze need to meet the conditions of working with high voltage or high current at room temperature, or working with low voltage or low current in a high temperature test chamber (not limited to high temperature range), and not changing color in appearance and functioning normally after aging for more than 1000 hours.

[0062] In an exemplary embodiment, Figure 1 The partition layer 10 shown in the figure is an organic polymer film. The organic polymer film (such as PET film) is selected as the material, which can not only effectively isolate the third bonding layer 12 from the functional layer 6, and prevent the appearance discoloration and line short circuit caused by the migration of metal atoms caused by chemical reactions, but also meet the specific requirements of automotive glass for optical performance due to its good transparency and adjustable transmittance characteristics.

[0063] In an exemplary embodiment, Figure 3 As shown, the functional layer 6 includes: a third transparent substrate 66 , a conductive layer 62 and a Mini-LED pixel array 68 stacked in sequence; the third transparent substrate 66 is adjacent to the first bonding layer 4 .

[0064] For example, the conductive layer 62 may be a metal mesh conductive film, an ITO film, or a nano silver wire transparent film. In addition, the functional layer 6 may also be provided with a flexible wire connection device 64 connected to the conductive layer 62, so that the conductive layer 62 can be connected to the driving board through the flexible wire connection device 64. The specific stacking relationship among the third transparent substrate 66, the conductive layer 62, and the Mini-LED pixel array 68 is as follows: Figure 3 By sequentially constructing a conductive layer 62 and a Mini-LED pixel array 68 on a third transparent substrate 66 , the functional layer 6 can realize a light-emitting or display function based on the Mini-LED pixel array 68 .

[0065] In this embodiment, by sequentially stacking a metal grid conductive film and a Mini-LED pixel array on a third transparent substrate, not only efficient current transmission and uniform light distribution are achieved, but also high-brightness, high-contrast display effects based on the Mini-LED pixel array are ensured, supporting finer image display and higher energy efficiency while maintaining good transparency, which is suitable for application scenarios requiring high-quality display and light transmittance, such as vehicle-mounted displays or transparent displays.

[0066] In an exemplary embodiment, Figure 3 The third transparent substrate 66 shown in FIG. 6 is an organic polymer film.

[0067] Exemplarily, the third transparent substrate 66 uses an organic polymer film (such as a PET film) as a material, which has the advantages of being light, thin, flexible, and having good optical transparency, which not only helps to improve the flexibility and durability of the entire laminated assembly, but also can effectively reduce the overall weight and simplify the manufacturing process. Moreover, under the premise of using an organic polymer film as the third transparent substrate 66, the material selection for the first bonding layer 4 is more flexible. It can be a material with a high transmittance that can inhibit or slow down the ion migration of the conductive layer 62, does not contain chloride ions, water molecules, oxygen molecules, special functional group hydroxyl, catalyst, or a material with extremely low content, or it can be a bonding material with a low transmittance that contains chloride ions, water molecules, oxygen molecules, special functional group hydroxyl, and catalyst. The specific material selection can be determined according to the transmittance design requirements, and examples are not given here one by one. In addition, the use of organic polymer films can also provide excellent chemical resistance and environmental aging resistance, thereby ensuring the stability and reliability of the Mini-LED pixel array 68 and the conductive layer 62 under long-term working conditions, and is suitable for application scenarios with high requirements for display quality and long-term performance.

[0068] In an exemplary embodiment, Figure 4 As shown, at least one surface of the barrier layer 10 has haze diffusion particles 102 .

[0069] For example, a haze diffusion film is formed by coating white haze diffusion particles 102 on one side of the partition layer 10, or by coating white haze diffusion particles 102 on both sides of the partition layer 10, with the amount of haze diffusion particles 102 coated on one side being greater than that on the other side. These particles can effectively scatter light, so that the light emitted by the Mini-LED lamp beads is evenly diffused when passing through this film, thereby reducing the granularity and glare of a single Mini-LED light source, and improving the softness and uniformity of the overall display effect. At the same time, the haze diffusion film has a shielding effect on the granularity of the Mini-LED lamp beads, which not only improves the visual experience, but also enhances the appearance quality of the Mini-LED display panel, making it more suitable for application scenarios that require high-quality and comfortable viewing experience.

[0070] In an exemplary embodiment, Figure 5 As shown, one side of the barrier layer 10 has a prismatic microstructure 104 .

[0071] Among them, the prismatic microstructure 104 on the partition layer 10 is located on the light-emitting side of the Mini-LED to change the propagation direction of the light emitted by the Mini-LED, thereby achieving a focusing effect. By way of example, by making a prismatic microstructure 104 on the upper surface of the partition layer 10, a brightness enhancement film with a focusing effect can be formed. This prismatic tooth-shaped microstructure can change the propagation direction of the light emitted by the Mini-LED, concentrate the light originally scattered in all directions and direct it to a specific angle, thereby improving the brightness under the front viewing angle. The use of a partition layer 10 with a prismatic microstructure 104 not only enhances the overall brightness of the Mini-LED, making the Mini-LED light source more efficiently utilized, but also reduces unnecessary side light loss, achieving energy-saving effects, while improving visual experience and display efficiency.

[0072] In an exemplary embodiment, Figure 6 The shown barrier layer 10 may be a colored organic polymer film.

[0073] For example, by using a colored organic polymer film as the barrier layer 10, the color of the light emitted by the Mini-LED is changed by using its specific color filtering properties. When the light emitted by the white light Mini-LED lamp beads passes through this colored organic polymer film, the film absorbs or reflects unnecessary wavelengths and only allows light of a specific color to pass through, so that the light finally displayed presents a color that matches the color of the film. This not only enables rich color expression, but also simplifies the design that traditionally requires a separate color filter, improves manufacturing efficiency and cost-effectiveness, and is suitable for application scenarios that require a colorful display effect.

[0074] In an exemplary embodiment, Figure 7 The illustrated barrier layer 10 may include a touch film.

[0075] For example, the partition layer 10 uses a touch film in combination with a flexible wire connection device 64. Based on the touch sensing and other related characteristics of the touch film itself, the touch display function can be realized in combination with the Mini-LED pixel array 68. For example, the user can touch the surface of the touch film with a finger to trigger a corresponding touch signal, which can be accurately recognized by the system and respond accordingly, such as switching the display screen, zooming the displayed content, clicking on the relevant icon to open the corresponding application, etc., which greatly increases the human-computer interaction experience, makes the interaction between people and devices more intuitive and convenient, and improves the practicality and ease of use of the entire device in actual use.

[0076] In an exemplary embodiment, Figure 7 The barrier layer 10 shown may include a heating film. For example, the barrier layer 10 may be a transparent heating film.

[0077] For example, in weather conditions such as rainy days and foggy days, due to the high water vapor content in the air, water vapor is easy to adhere to the surface of the transparent substrate, and then condense to form fog or frost. In the scenario where the laminated component is used as automotive glass in a car, these fogs and frosts will block the display content of the Mini-LED, resulting in unclear display, which is extremely unfavorable for driving safety, because the driver may not be able to accurately and clearly obtain important content such as navigation information and vehicle status prompts through the on-board display, which is easy to cause safety accidents. When encountering the above-mentioned situation where the Mini-LED display clarity is affected by fog and frost, since the partition layer 10 uses a transparent heating film, the heating function of the transparent heating film can be turned on at this time. The transparent heating film starts to heat up after power is turned on, and the heat will be transferred to the glass surface, so that the fog attached to the glass evaporates due to heat, and the frost will gradually melt and dissipate, so that the glass surface is restored to clarity, so that the display content of the Mini-LED can be clearly presented again. Through the above method, the driver can clearly see the relevant display information, which greatly improves the safety during driving and ensures that the vehicle can drive normally and safely under severe weather conditions.

[0078] In an exemplary embodiment, Figure 7 The shown isolation layer 10 may also include a touch film and a heating film, wherein the working process of the touch film and the heating film and the related beneficial effects can all be referred to the description in the previous embodiment, and will not be repeated here.

[0079] In an exemplary embodiment, Figure 8 As shown, the functional layer 6 further includes a heating layer 69, and the heating layer 69 is disposed between the third transparent substrate and the conductive layer.

[0080] For example, by adding the heating layer 69, in addition to realizing the original light-emitting and display functions based on the Mini-LED pixel array 68, the functional layer 6 also has the functions of heating for defogger and defrost, and maintaining its own temperature in a low-temperature environment to ensure the stability of related performance such as display, so that it can be better used in scenes such as outdoors and in vehicles that may face complex environmental conditions such as low temperature and high humidity, further improving the practicality and adaptability of the entire functional layer 6.

[0081] In one embodiment, if Fig. 9 As shown, the functional layer 6, the second adhesive layer 8 and the barrier layer 10 form a film layer assembly based on the pre-packaging process.

[0082] During the manufacturing process, the functional layer 6, the second adhesive layer 8, and the barrier layer 10 may be pre-packaged to form an integral film layer assembly (eg Fig. 9The dotted box in the middle shows the schematic diagram of the embodiment of the present invention, which is convenient for reducing the tedious steps and time cost of installing each component one by one and improving production efficiency when assembling related products in the future.

[0083] Based on the same inventive concept, in an exemplary embodiment, the present application also provides a vehicle (not shown) comprising the laminated assembly in the above embodiment.

[0084] It can be understood that the means of transportation in the embodiments of the present application can be any means of transportation with light transmission requirements, such as cars, airplanes, high-speed trains, etc., and the embodiments disclosed in the present application are not limited to this.

[0085] The technical features of the above-described embodiments may be arbitrarily combined. To make the description concise, not all possible combinations of the technical features in the above-described 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.

[0086] The above-mentioned embodiments only express several implementation methods of the present invention, and the descriptions thereof are relatively specific and detailed, but they cannot be understood as limiting the scope of the invention patent. It should be pointed out that, for ordinary technicians in this field, several variations and improvements can be made without departing from the concept of the present invention, and these all belong to the protection scope of the present invention. Therefore, the protection scope of the patent of the present invention shall be subject to the attached claims.

Claims

1. A laminated assembly, characterized in that: The stacked assembly comprises: a first transparent substrate, a first adhesive layer, a functional layer, a second adhesive layer, a partition layer, a third adhesive layer and a second transparent substrate stacked in sequence.

2. The stacked assembly according to claim 1, characterized in that: The first bonding layer and / or the second bonding layer are used to inhibit or slow down ion migration of the functional layer.

3. The stacked assembly according to claim 1, characterized in that: The transmittance of the third adhesive layer is different from the transmittance of the second adhesive layer.

4. The stacked assembly according to claim 3, characterized in that: The barrier layer is an organic polymer film.

5. The stacked assembly according to any one of claims 1 to 4, characterized in that: The functional layer includes: a third transparent substrate, a conductive layer and a Mini-LED pixel array stacked in sequence; the third transparent substrate is adjacent to the first bonding layer.

6. The stacked assembly according to claim 5, characterized in that: The third transparent substrate is an organic polymer film.

7. The stacked assembly according to claim 5, characterized in that: At least one surface of the barrier layer has haze diffusion particles.

8. The stacked assembly according to claim 5, characterized in that: One side of the partition layer has a prism microstructure.

9. The stacked assembly according to claim 5, characterized in that: The partition layer is a colorful organic polymer film.

10. The stacked assembly according to claim 5, characterized in that: The isolation layer includes a touch film and / or a heating film.

11. The stacked assembly according to claim 5, characterized in that: The functional layer further includes a heating layer, and the heating layer is disposed between the third transparent substrate and the first bonding layer.

12. The stacked assembly according to claim 1, characterized in that: The functional layer, the second adhesive layer and the barrier layer form a film layer assembly based on a pre-packaging process.

13. A means of transport, characterized in that: Comprising a stacked assembly as described in any one of claims 1-12.

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