Foldable screen electronic device and method for manufacturing protective film
By forming a molecular chain protective film on the surface of decorative parts of foldable screen electronic devices, the problem of easy coating peeling is solved, the connection strength is enhanced, and the wear resistance and user experience of the device are improved.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- VIVO MOBILE COMM CO LTD
- Filing Date
- 2023-06-20
- Publication Date
- 2026-06-26
AI Technical Summary
During the folding process, the coating on the edge decorative parts of foldable electronic devices is prone to peeling off, leading to problems such as abnormal noises and uneven movement.
A protective film composed of molecular chains is formed on the surface of the decorative part, which is connected to the body of the decorative part through coordination bonds, thereby enhancing the connection strength and preventing the protective film from falling off.
It improves the connection strength between the protective film and the main body of the decorative part, prevents the protective film from falling off, and improves the wear resistance and user experience of the device.
Smart Images
Figure CN116741049B_ABST
Abstract
Description
Technical Field
[0001] This application relates to the field of electronic product technology, specifically to a foldable screen electronic device and a method for manufacturing a protective film. Background Technology
[0002] In related technologies, foldable screen electronic devices have gained increasing popularity due to their adjustable screen size. However, when foldable screen electronic devices are folded, the edges of the two screens fit together. The surface of the edge trim of foldable screen electronic devices is typically coated. With repeated folding, the coating on the surface of the edge trim is prone to peeling off under the impact force of the two screens. When there are areas of coating peeling off the edge trim, the folding process of the electronic device is not smooth, which can easily cause abnormal noises and a jerky feeling. Therefore, existing foldable screen electronic devices have a problem with the surface coating of the edge trim being prone to peeling off. Summary of the Invention
[0003] This application provides a method for manufacturing a foldable screen electronic device and a protective film, which can effectively prevent the protective film from falling off the surface of the accessory body.
[0004] In a first aspect, embodiments of this application provide a foldable screen electronic device, including: a first screen body, a second screen body, and a connecting component. The first screen body is rotatably connected to the second screen body through the connecting component. The first screen body includes a first decorative element and a first screen assembly. The first decorative element is disposed along the edge of the first screen assembly. The second screen body includes a second decorative element and a second screen assembly. The second decorative element is disposed along the edge of the second screen assembly.
[0005] The first decorative element includes a first decorative element body and a first protective film disposed on the surface of the first decorative element body, the first protective film including a plurality of first molecular chains;
[0006] The second decorative element includes a second decorative element body and a second protective film disposed on the surface of the second decorative element body, the second protective film including a plurality of second molecular chains;
[0007] When the foldable screen electronic device is in a folded state, the first decorative element and the second decorative element are attached together.
[0008] Secondly, embodiments of this application provide a method for manufacturing a protective film, comprising:
[0009] Prepare a mixed solution, wherein the mixed solution comprises a solute capable of forming molecular chains and a volatile solvent;
[0010] The mixed solution is heated until the solute dissolves in the solvent to obtain a dissolved solution;
[0011] The dissolving solution is applied to the surface of the workpiece to be processed to form a protective film on the surface of the workpiece, and the workpiece to be processed with the protective film is identified as the target workpiece.
[0012] The protective film is formed by the remaining solute after the solvent in the solution on the surface of the workpiece evaporates. The protective film includes multiple molecular chains, and the molecular chains form coordination bonds with the workpiece.
[0013] In this embodiment, since the first decorative part and the second decorative part are respectively provided with a protective film composed of molecular chains, and the connection strength between the molecular chains and the decorative part body is more than 30 times that of the intermolecular force, the connection strength between the protective film and the decorative part body can be effectively improved, thereby effectively preventing the protective film from falling off the surface of the decorative part body. Attached Figure Description
[0014] Figure 1 This is a schematic diagram of the structure of the foldable screen electronic device provided in the embodiment of this application when it is in the unfolded state;
[0015] Figure 2 This is a schematic diagram of the structure of the foldable screen electronic device provided in this application embodiment when it is in a folded state;
[0016] Figure 3 This is one of the schematic diagrams showing the connection structure between molecular chains and the substrate;
[0017] Figure 4 This is the second schematic diagram of the connection structure between the molecular chain and the substrate;
[0018] Figure 5 This is a structural diagram of the connecting components;
[0019] Figure 6 This is a flowchart illustrating a method for manufacturing a protective film provided in this application. Detailed Implementation
[0020] The technical solutions of the embodiments of this application will be clearly described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this application. All other embodiments obtained by those skilled in the art based on the embodiments of this application are within the scope of protection of this application.
[0021] The terms "first," "second," etc., used in the specification and claims of this application are used to distinguish similar objects and not to describe a specific order or sequence. It should be understood that such use of data can be interchanged where appropriate so that embodiments of this application can be implemented in orders other than those illustrated or described herein, and the objects distinguished by "first," "second," etc., are generally of the same class and the number of objects is not limited; for example, a first object can be one or more. Furthermore, in the specification and claims, "and / or" indicates at least one of the connected objects, and the character " / " generally indicates that the preceding and following objects are in an "or" relationship.
[0022] The following description, in conjunction with the accompanying drawings, details the manufacturing method of the foldable screen electronic device and protective film provided in this application through specific embodiments and application scenarios.
[0023] Please see Figure 1-2 , Figure 1-2 This application provides a foldable screen electronic device, including: a first screen body 100, a second screen body 200, and a connecting component 300. The first screen body 100 is rotatably connected to the second screen body 200 through the connecting component 300. The first screen body 100 includes a first decorative member 110 and a first screen assembly 120. The first decorative member 110 is disposed along the edge of the first screen assembly 120. The second screen body 200 includes a second decorative member 210 and a second screen assembly 220. The second screen body 200 is disposed along the edge of the second screen assembly 220.
[0024] The first decorative element 110 includes a first decorative element body and a first protective film disposed on the surface of the first decorative element body, the first protective film including a plurality of first molecular chains;
[0025] The second decorative element 210 includes a second decorative element body and a second protective film disposed on the surface of the second decorative element body, the second protective film including a plurality of second molecular chains;
[0026] When the foldable screen electronic device is in a folded state, the first decorative element 110 and the second decorative element 210 are attached to each other.
[0027] The aforementioned foldable screen electronic devices can be of various types, such as those that fold vertically or horizontally. Please see below. Figure 1-2This application embodiment takes a foldable screen electronic device that folds vertically as an example to further explain the structure of the foldable screen electronic device in this application: The first screen component 120 may include a first display screen 122 and a first flip component 121, and the second screen component 220 includes a second display screen 221 and a second flip component 222. The first flip component 121 is rotatably connected to the second flip component 222 through the connecting component 300.
[0028] The first flip-cover assembly 121 is connected to the first display screen 122, and the first flip-cover assembly 121 forms the frame of the first display screen 122. The first decorative piece 110 is a U-shaped decorative piece. Please refer to [link to relevant documentation]. Figure 1-2 The first decorative element 110 is disposed along the edge of the first display screen 122 and is opposite to the first flip assembly 121. Simultaneously, the first decorative element 110 is fixedly connected to both the first display screen 122 and the first flip assembly 121, and protrudes from the display end face of the first display screen 122. The second decorative element 210 is disposed along the edge of the second display screen 221 and is opposite to the second flip assembly 222. Simultaneously, the second decorative element 210 is fixedly connected to both the second display screen 221 and the second flip assembly 222, and protrudes from the display end face of the second display screen 221. Because the first decorative element 110 protrudes from the display end face of the first display screen 122 and the second decorative element 210 protrudes from the display end face of the second display screen 221, a certain gap can exist between the first display screen 122 and the second display screen 221 when the foldable screen electronic device is in a folded state, and the first decorative element 110 and the second decorative element 210 are in close contact.
[0029] Please see Figure 1 and Figure 2 When the foldable screen electronic device is in the folded state, the first flip assembly 121 and the second flip assembly 222 have a relative movement in the left and right direction due to the inconsistent force directions (e.g., Figure 2(Direction indicated by the arrow). During the left-right movement between components, the first decorative component 110 and the second decorative component 210 rub against each other. In related technologies, when the coating on the surface of the first decorative component 110 and the second decorative component 210 is paint, due to the limitation of the wear resistance of existing paint, the paint on the surface of the first decorative component 110 and the second decorative component 210 will be worn away after repeated friction. This will affect the overall aesthetics of the electronic device and will also cause abnormal noises and uneven left-right movement during folding. This is also the main reason for the abnormal noises and jerking sensation of foldable screen phones. Based on this, the embodiments of this application improve the wear resistance of the first decorative component 110 and the second decorative component 210 by forming a first protective film and a second protective film on the first decorative component 110 and the second decorative component 210, respectively.
[0030] The aforementioned first protective film can be a protective film formed by the plurality of first molecular chains. For example, the plurality of first molecular chains are arranged disorderedly on the surface of the first decorative piece body to cover the surface of the first decorative piece body, thereby forming the first protective film. The first molecular chains can be molecular chains formed by connecting various element molecules, and coordination bonds can be formed between different element molecules in the first molecular chain. For example, in one embodiment of this application, the first molecular chain can be a molecular chain formed by connecting multiple polyethylene molecules.
[0031] The aforementioned second protective film can be a protective film formed by the plurality of second molecular chains. For example, the plurality of second molecular chains are arranged disorderedly on the surface of the second decorative element body to cover the surface of the second decorative element body, thereby forming the second protective film. The second molecular chains can be molecular chains formed by connecting various element molecules, and coordination bonds can be formed between different element molecules in the second molecular chain. For example, in one embodiment of this application, the second molecular chain can be a molecular chain formed by connecting multiple polyethylene molecules.
[0032] The aforementioned coordinate bond, also known as a coordinate covalent bond, or simply a coordinate bond, is a special type of covalent bond.
[0033] In this embodiment, since the first decorative element 110 and the second decorative element 210 are respectively provided with a protective film composed of molecular chains, and the connection strength between the molecular chains and the decorative element body is more than 30 times that of the intermolecular force, the connection strength between the protective film and the decorative element body can be effectively improved, thereby effectively preventing the protective film from falling off the surface of the decorative element body.
[0034] Optionally, each of the plurality of first molecular chains forms a coordination bond with the first decorative element body; and each of the plurality of second molecular chains forms a coordination bond with the second decorative element body.
[0035] The plurality of first molecular chains can form coordination bonds with different positions on the first ornament body to form a first protective film on the first ornament body. The plurality of second molecular chains can form coordination bonds with different positions on the second ornament body to form a second protective film on the second ornament body.
[0036] In this embodiment, since the first molecular chain forms a coordination bond with the first decorative element body, the first molecular chain can penetrate to a depth of 20 nm on the surface of the first decorative element body, thereby fusing with the first decorative element body and improving the adhesion effect of the first protective film. Correspondingly, the second molecular chain forms a coordination bond with the second decorative element body, thus the second molecular chain can penetrate to a depth of 20 nm on the surface of the second decorative element body, thereby fusing with the second decorative element body and improving the adhesion effect of the second protective film.
[0037] Optionally, the first molecular chain includes a first group, and the first group of each first molecular chain in the first protective film forms a coordination bond with the first ornament body, and the first group of each first molecular chain in the first protective film together forms a first bonding layer covering the surface of the first ornament body, and the first protective film includes the first bonding layer.
[0038] The second molecular chain includes a second group, and the second groups of each second molecular chain in the second protective film form coordination bonds with the second ornament body, and the second groups of each second molecular chain in the second protective film together form a second bonding layer covering the surface of the second ornament body, and the second protective film includes the second bonding layer.
[0039] The first binding layer is the binding layer formed by the groups of the plurality of first molecular chains, and the second binding layer is the binding layer formed by the groups of the plurality of second molecular chains.
[0040] In this embodiment, since each group comprises a large number of molecules interconnected by coordination bonds, each group in the first bonding layer can form at least one coordination bond with the first decorative element body; similarly, each group in the second bonding layer can form at least one coordination bond with the second decorative element body. The first group can bond with the first decorative element body at 360°, resulting in a highly dense and strong bonding layer; the second group can bond with the second decorative element body at 360°, resulting in a highly dense and strong bonding layer, thereby further improving the adhesion effect of both the first and second protective layers.
[0041] Optionally, the first molecular chain further includes a first chain body, wherein the first chain body in the first molecular chain forms a coordination bond with the first group, the first chain bodies of each first molecular chain in the first protective film are intertwined to form a first lubricating layer, and the first lubricating layer is located outside the first bonding layer, and the first protective film further includes the first lubricating layer.
[0042] The second molecular chain further includes a second chain body, and the second chain body in the second molecular chain forms a coordination bond with the second group. The second chain bodies of each second molecular chain in the second protective film are intertwined to form a second lubricating layer, and the second lubricating layer is located outside the second bonding layer. The second protective film also includes the second lubricating layer.
[0043] The first chain described above can be a chain-like molecular chain formed by multiple coordinate bonds, and the first group described above is a cluster-like structure formed by multiple coordinate bonds. The second chain described above can be a chain-like molecular chain formed by multiple coordinate bonds, and the second group described above is a cluster-like structure formed by multiple coordinate bonds. For example, please refer to... Figure 3 and 4 This is a schematic diagram of the connection structure between a molecular chain 400 and a substrate 500 provided in an embodiment of this application. The molecular chain 400 includes a group 410 and a chain body 420. The molecular chain 400 may be the first molecular chain or the second molecular chain mentioned above. The substrate 500 may be the first decorative body or the second decorative body mentioned above.
[0044] The first and second molecular chains mentioned above each exhibit chain-like structures with a diameter of 30-40 nm. They are arranged randomly on the surface of the corresponding ornament body, and their chain-like structures are intertwined in a disordered manner, thereby forming a dense protective film with a thickness of less than 100 nm.
[0045] In this implementation, please refer to Figure 3 and 4 During the folding process of the foldable screen electronic device, when the molecular chain 400 is subjected to frictional force in the direction indicated by the arrow in Figure (3b), the chain body 420 of the molecular chain 400 is easily deformed. Therefore, under the action of frictional force between the two screen bodies, the chain body deforms in the direction of frictional force, thereby reducing the magnitude of the force transmitted to the main body of the decorative part, and thus playing a lubricating role. This further improves the wear resistance of the first protective film and the second protective film.
[0046] Optionally, the connecting assembly 300 includes a mounting bracket 310, a first connecting shaft 320, a second connecting shaft 330, a first transmission wheel 340, a second transmission wheel 350, and a gear set 360. The first connecting shaft 320, the second connecting shaft 330, and the gear set 360 are respectively mounted on the mounting bracket 310, and the first connecting shaft 320 and the second connecting shaft 330 are arranged in parallel. The first connecting shaft 320 and the second connecting shaft 330 are respectively rotatably connected to the mounting bracket 310. One end of the first screen assembly 120 is fixedly connected to the first connecting shaft 320, and one end of the second screen assembly 220 is fixedly connected to the second connecting shaft 330.
[0047] The outer side wall of the first transmission wheel 340 is provided with a first protruding tooth, and the first transmission wheel 340 is fixedly sleeved on the first connecting shaft 320. The outer side wall of the second transmission wheel 350 is provided with a second protruding tooth, and the second transmission wheel 350 is fixedly sleeved on the second connecting shaft 330. The first protruding tooth of the first transmission wheel 340 is meshed with the second protruding tooth of the second transmission wheel 350 through the gear set 360.
[0048] The surface of the first protruding tooth is provided with a third protective film, which includes a plurality of third molecular chains, and each third molecular chain forms a coordination bond with the first protruding tooth.
[0049] The surface of the second protruding tooth is provided with a fourth protective film, the fourth protective film comprising a plurality of fourth molecular chains, each of which forms a coordination bond with the second protruding tooth;
[0050] The surface of the gear set 360 is provided with a fifth protective film, which includes a plurality of fifth molecular chains, and each fifth molecular chain forms a coordination bond with the gear set 360.
[0051] The aforementioned connecting component 300 can be any connecting structure used in related technologies to connect two screens of a foldable screen electronic device, such as various hinge connecting structures. Please refer to [link to relevant documentation]. Figure 5This is a schematic diagram of a connecting component 300 provided in an embodiment of this application. The first connecting shaft 320 and the second connecting shaft 330 are rotatably connected to the mounting bracket 310. One end of the first flip-cover component 121 can be fixedly connected to the first connecting shaft 320. Thus, during the rotation of the first screen 100, the first screen 100 rotates relative to the mounting bracket 310 via the first connecting shaft 320. Correspondingly, one end of the second flip-cover component 222 can be fixedly connected to the second connecting shaft 330. Thus, during the rotation of the second screen 200, the second screen 200 rotates relative to the mounting bracket 310 via the second connecting shaft 330.
[0052] The aforementioned "first transmission wheel 340, second transmission wheel 350, and gear set 360" can form a transmission module. At least one transmission module can be arranged between the first connecting shaft 320 and the second connecting shaft 330. For example, please refer to [link to relevant documentation]. Figure 5 Two sets of transmission modules are provided between the first connecting shaft 320 and the second connecting shaft 330. Each transmission module may include at least one of the aforementioned gears. For example, referring to X, the gear set 360 includes a first gear 361 and a second gear 362. The first transmission wheel 340 meshes with the first gear 361, the first gear 361 meshes with the second gear 362, and the second gear 362 meshes with the second transmission wheel 350. The first gear 361 is rotatably connected to the mounting bracket 310 via a first shaft 370, and the second gear 362 is rotatably connected to the mounting bracket 310 via a second shaft 380. The first transmission wheel 340 can be a gear, or it can be a transmission wheel with teeth that mesh with a gear only in a partial area. Similarly, the second transmission wheel 350 can be a gear, or it can be a transmission wheel with teeth that mesh with a gear only in a partial area. Thus, since the first connecting shaft 320 and the second connecting shaft 330 are meshed with each other through the first transmission wheel 340, the gear set 360 and the second transmission wheel 350, the transmission module will drive the other screen to rotate synchronously during the rotation of one of the screens.
[0053] In addition, conventional lubricating oil can be installed at the meshing points of the aforementioned "first transmission wheel 340, second transmission wheel 350 and gear set 360" to achieve better lubrication and longer service life.
[0054] In this embodiment, during the meshing process of the first transmission wheel 340, the second transmission wheel 350, and the gear set 360, there will be some wear at their respective meshing positions. Therefore, in order to improve the lifespan of the connecting assembly 300, this embodiment forms a protective film on the surface of the first transmission wheel 340, the second transmission wheel 350, and the gear set 360 respectively to improve the wear resistance of the first transmission wheel 340, the second transmission wheel 350, and the gear set 360, thereby improving the lifespan of the connecting assembly 300.
[0055] Optionally, the first screen assembly 120 includes a first display module, a first glass cover, and a sixth protective film. The first display module and the first glass cover are stacked together. The sixth protective film covers the surface of the first glass cover facing away from the first display module. The sixth protective film includes a plurality of sixth molecular chains, and each sixth molecular chain forms a coordination bond with the first glass cover.
[0056] The second screen assembly 220 includes a second display module, a second glass cover, and a seventh protective film. The second display module and the second glass cover are stacked together. The seventh protective film covers the surfaces of the second glass cover that are opposite to the second display module. The seventh protective film includes a plurality of seventh molecular chains, and each seventh molecular chain forms a coordination bond with the second glass cover.
[0057] Specifically, the first display module, the first glass cover, and the sixth protective film can form the first display screen 122, and the second display module, the second glass cover, and the seventh protective film can form the second display screen 221.
[0058] It is understandable that the first, second, third, fourth, fifth, sixth, and seventh molecular chains mentioned above can be molecular chains of the same type.
[0059] In this embodiment, since the user directly contacts the first glass cover or the second glass cover during the process of touching the foldable screen electronic device, the present application embodiment forms a protective film on the exposed end face of the first glass cover and the second glass cover, which helps to improve the wear resistance of the foldable screen electronic device screen and thus avoid the problem of screen scratches.
[0060] Please refer to the table below for a comparison of test results between conventional foldable screen electronic devices and the foldable screen electronic device in this application embodiment:
[0061]
[0062]
[0063] The aforementioned folded-state micro-drop test involves dropping the folded electronic device from a certain height while it is in a folded state. In this test, conventional folded electronic devices exhibit noticeable jolts during the folding process of the two screens starting at 1000 drops, and the decorative parts (the first decorative part 110 and the second decorative part 210) become scratched. However, the folded electronic device of this application exhibits no jolts in the first 8000 drops, and only slight jolts and minor scratches on the decorative parts during the unfolded state micro-drop test from 8000 to 12000 drops.
[0064] The above-mentioned rubbing durability test: Under a certain pressure, the first screen 100 or the second screen 200 is rubbed. Conventional foldable electronic devices begin to show noticeable jerking after 1000 rubs, and decorative parts become scratched. The foldable electronic device of this application shows a 1 / 2 probability of slight jerking in the third round (4000 to 6000 rubs); a 1 / 2 probability of slight jerking in the fourth round (6000 to 8000 rubs), with no new jerking; and a 2 / 2 probability of slight jerking in the fifth round (8000 to 10000 rubs). The above-mentioned room temperature folding life test: This is an experiment where the foldable electronic device is folded at room temperature. The test results of conventional foldable electronic devices are unstable, typically showing jerking after 30,000 to 50,000 rubs. The foldable electronic device of this application shows no jerking after 100,000 rubs. The aforementioned high-temperature and high-humidity folding life test involves folding the foldable screen electronic device under high temperature and humidity conditions. Conventional foldable screen electronic devices typically exhibit unstable test results, usually starting to show signs of lag after 30,000-50,000 folds. However, the foldable screen electronic device described in this application remained foldable for 100,000 folds without any noticeable lag.
[0065] It is evident that the wear resistance of the decorative parts of the foldable screen electronic device provided in this application embodiment is significantly higher than that of the decorative parts of conventional foldable screen electronic devices.
[0066] Please see Figure 6 , Figure 6 This is a schematic flowchart illustrating a method for manufacturing a protective film according to an embodiment of this application. The method for manufacturing the protective film includes the following steps:
[0067] Step 601: Prepare a mixed solution, wherein the mixed solution includes a solute capable of forming molecular chains and a volatile solvent;
[0068] Step 602: Heat the mixed solution until the solute dissolves in the solvent to obtain a dissolved solution;
[0069] Step 603: Cover the surface of the workpiece to be processed with the dissolving solution to form a protective film on the surface of the workpiece to be processed, and identify the workpiece to be processed with the protective film as the target workpiece;
[0070] The protective film is formed by the remaining solute after the solvent in the solution on the surface of the workpiece evaporates. The protective film includes multiple molecular chains, and the molecular chains form coordination bonds with the workpiece.
[0071] The solvent can be any type of volatile solvent, and the solute can be any particle capable of forming nanoscale lubricating molecular chains, and the solute can dissolve in the solvent under certain conditions. For example, in one embodiment of this application, the solvent is ethanol, the solute is polyethylene, and the proportion of the solvent in the mixed solution is greater than or equal to 98%. In this case, the particle diameter of the solute is between 30-40 nm. The following explanation uses ethanol as the solvent and polyethylene as the solute as an example to further illustrate the preparation method provided in the embodiments of this application.
[0072] At room temperature (25°C), the solute in the above-mentioned mixed solution is in a suspended state and has poor miscibility with the solvent (the solvent appears milky white). It needs to be heated to above 50°C for the solvent and solute to mix well (i.e., dissolve). At this temperature, the resulting solution is transparent. Therefore, heating the mixed solution until the solute dissolves in the solvent to obtain a dissolved solution specifically refers to heating the mixed solution to above 50°C.
[0073] The process of applying the dissolving solution to the surface of the workpiece can be achieved using various coating techniques in related technologies.
[0074] The method for manufacturing the protective film can be applied to the processing of various target workpieces with high requirements for wear resistance. For example, the method can be applied to the processing of protective films for various workpieces of the foldable screen electronic device in the above embodiments. Specifically, the target workpiece includes a first decorative component 110 and a second decorative component 210 in the foldable screen electronic device; the foldable screen electronic device includes a first screen body 100, a second screen body 200, and a connecting assembly 300. The first screen body 100 is rotatably connected to the second screen body 200 through the connecting assembly 300. The first screen body 100 includes the first decorative component 110 and a first screen assembly 120. The first decorative component 110 is disposed along the edge of the first screen assembly 120. The second screen body 200 includes the second decorative component 210 and a second screen assembly 220. The first decorative component 110 is disposed along the edge of the second screen assembly 220. In addition, the target workpiece may also include the first transmission wheel 340, the second transmission wheel 350, the gear set 360, the first glass cover plate and the second glass cover plate in the above embodiments, so as to realize the processing of the first protective film, the second protective film, the third protective film, the fourth protective film, the fifth protective film, the sixth protective film and the seventh protective film.
[0075] In this embodiment, after a protective film is processed on the surface of the workpiece to be processed based on the above process, the molecular chains of the protective film form coordinate bonds with the workpiece to be processed. The connection strength of the coordinate bonds is more than 30 times that of the intermolecular forces, which can effectively improve the connection strength between the protective film and the workpiece to be processed, thereby effectively preventing the protective film from falling off the surface of the workpiece to be processed.
[0076] Optionally, the step of covering the surface of the workpiece with the dissolving solution to form a protective film on the surface of the workpiece includes:
[0077] The dissolving solution is sprayed onto the surface of the workpiece using a spraying device, wherein the temperature of the dissolving solution is between 50°C and 60°C during the spraying process.
[0078] The spraying equipment can be a common device used in spraying processes, capable of converting a solution into a mist. During the spraying process: the dissolved solution is placed inside the spraying equipment, and its temperature is maintained at 50℃-60℃. The spraying equipment evenly coats the surface of the workpiece in a mist form. The solvent evaporates naturally, leaving a solute on the workpiece surface that forms a protective film. After the protective film forms, excess solute residue will remain on the workpiece surface. If there are aesthetic requirements for the workpiece surface, this residue can be wiped clean with a lint-free cloth; otherwise, no treatment is necessary. In this embodiment, the residue can be wiped clean with a lint-free cloth.
[0079] In this embodiment, a protective film is applied to the surface of the workpiece by using a spraying device.
[0080] Optionally, the step of covering the surface of the workpiece with the dissolving solution to form a protective film on the surface of the workpiece includes:
[0081] The workpiece to be processed is immersed in the dissolving solution for more than 20 seconds, wherein the temperature of the dissolving solution is between 50°C and 60°C;
[0082] After removing the workpiece from the dissolving solution, the dissolving solution on the workpiece is spun dry;
[0083] The workpiece to be processed is dried to form the protective film on its surface.
[0084] Specifically, the above-mentioned dissolving solution can be placed in a relatively sealed container (metal or glass container; the relative sealing is to reduce solvent evaporation), and the container and dissolving solution can be heated to 50-60°C. Once the temperature stabilizes within the 50-60°C range, the workpiece to be processed can be completely immersed in the solution. The immersion time should be at least 30 seconds. If it is possible to preheat the workpiece to a temperature above 50°C, the immersion time can be reduced to 5-10 seconds, i.e., immersing the workpiece in the dissolving solution for at least 20 seconds. After immersion, the excess dissolving solution on the surface of the workpiece can be collected by spin-drying in a sealed environment. The recovered dissolving solution can be reused normally to reduce waste. After spin-drying the solution, once the solvent has completely evaporated, the workpiece can be baked (baking temperature 50-60°C, baking time: 10-30 minutes) to quickly form a protective film; alternatively, the workpiece can be left to stand at room temperature for 24 hours without baking to form a protective film with the same effect. The specific operation can be selected according to actual needs.
[0085] In this embodiment, a protective film is applied to the surface of the workpiece by means of immersion.
[0086] It should be noted that, in this document, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes that element. Furthermore, it should be noted that the scope of the methods and apparatuses in the embodiments of this application is not limited to performing functions in the order shown or discussed, but may also include performing functions substantially simultaneously or in the reverse order, depending on the functions involved. For example, the described methods may be performed in a different order than described, and various steps may be added, omitted, or combined. Additionally, features described with reference to certain examples may be combined in other examples.
[0087] The embodiments of this application have been described above with reference to the accompanying drawings. However, this application is not limited to the specific embodiments described above. The specific embodiments described above are merely illustrative and not restrictive. Those skilled in the art can make many other forms under the guidance of this application without departing from the spirit and scope of the claims, and all of these forms are within the protection scope of this application.
Claims
1. A foldable screen electronic device, characterized in that, include: The system comprises a first screen body, a second screen body, and a connecting assembly. The first screen body is rotatably connected to the second screen body via the connecting assembly. The first screen body includes a first decorative element and a first screen assembly. The first decorative element is disposed along the edge of the first screen assembly. The second screen body includes a second decorative element and a second screen assembly. The second decorative element is disposed along the edge of the second screen assembly. The first decorative element includes a first decorative element body and a first protective film disposed on the surface of the first decorative element body. The first protective film includes a plurality of first molecular chains, and the first molecular chains include molecular chains formed by connecting a plurality of polyethylene molecules. The second decorative element includes a second decorative element body and a second protective film disposed on the surface of the second decorative element body. The second protective film includes a plurality of second molecular chains, and the second molecular chains include molecular chains formed by connecting a plurality of polyethylene molecules. When the foldable screen electronic device is in a folded state, the first decorative element and the second decorative element are attached together. The first molecular chain includes a first group and a first chain body. The first group of each first molecular chain in the first protective film forms a coordination bond with the first ornament body, and the first group of each first molecular chain in the first protective film together forms a first bonding layer covering the surface of the first ornament body. The first chain body in the first molecular chain forms a coordination bond with the first group. The first chain bodies of each first molecular chain in the first protective film are intertwined to form a first lubricating layer. The first lubricating layer is located outside the first bonding layer. The first protective film includes the first bonding layer and the first lubricating layer. The second molecular chain includes a second group and a second chain body. The second group of each second molecular chain in the second protective film forms a coordination bond with the body of the second ornament. The second groups of each second molecular chain in the second protective film together form a second bonding layer covering the surface of the body of the second ornament. The second chain body in the second molecular chain forms a coordination bond with the second group. The second chain bodies of each second molecular chain in the second protective film are intertwined to form a second lubricating layer. The second lubricating layer is located outside the second bonding layer. The second protective film includes the second bonding layer and the second lubricating layer.
2. The foldable screen electronic device according to claim 1, characterized in that, Each of the plurality of first molecular chains forms a coordination bond with the first ornament body; each of the plurality of second molecular chains forms a coordination bond with the second ornament body.
3. The foldable screen electronic device according to any one of claims 1-2, characterized in that, The connecting assembly includes a mounting bracket, a first connecting shaft, a second connecting shaft, a first transmission wheel, a second transmission wheel, and a gear set. The first connecting shaft, the second connecting shaft, and the gear set are respectively mounted on the mounting bracket, and the first connecting shaft and the second connecting shaft are arranged in parallel. The first connecting shaft and the second connecting shaft are rotatably connected to the mounting bracket. One end of the first screen assembly is fixedly connected to the first connecting shaft, and one end of the second screen assembly is fixedly connected to the second connecting shaft. The outer side wall of the first transmission wheel is provided with a first protruding tooth, and the first transmission wheel is fixedly sleeved on the first connecting shaft. The outer side wall of the second transmission wheel is provided with a second protruding tooth, and the second transmission wheel is fixedly sleeved on the second connecting shaft. The first protruding tooth of the first transmission wheel is meshed with the second protruding tooth of the second transmission wheel through the gear set. The surface of the first protruding tooth is provided with a third protective film, which includes a plurality of third molecular chains, and each third molecular chain forms a coordination bond with the first protruding tooth. The surface of the second protruding tooth is provided with a fourth protective film, the fourth protective film comprising a plurality of fourth molecular chains, each of which forms a coordination bond with the second protruding tooth; The surface of the gear set is provided with a fifth protective film, which includes a plurality of fifth molecular chains, each of which forms a coordinate bond with the gear set.
4. The foldable screen electronic device according to any one of claims 1-2, characterized in that, The first screen assembly includes a first display module, a first glass cover, and a sixth protective film. The first display module and the first glass cover are stacked together. The sixth protective film covers the surface of the first glass cover that is opposite to the first display module. The sixth protective film includes a plurality of sixth molecular chains, and each sixth molecular chain forms a coordination bond with the first glass cover. The second screen assembly includes a second display module, a second glass cover, and a seventh protective film. The second display module and the second glass cover are stacked together. The seventh protective film covers the surfaces of the second glass cover that are opposite to the second display module. The seventh protective film includes a plurality of seventh molecular chains, and each seventh molecular chain forms a coordination bond with the second glass cover.
5. A method for manufacturing a protective film, characterized in that, The method for manufacturing the protective film is used to manufacture the first protective film and / or the second protective film according to any one of claims 1 to 4, the method comprising: Prepare a mixed solution, wherein the mixed solution comprises a solute capable of forming molecular chains and a volatile solvent; The mixed solution is heated until the solute dissolves in the solvent to obtain a dissolved solution; The dissolving solution is applied to the surface of the workpiece to be processed to form a protective film on the surface of the workpiece, and the workpiece to be processed with the protective film is identified as the target workpiece. The protective film is formed by the remaining solute after the solvent in the solution on the surface of the workpiece evaporates. The protective film includes multiple molecular chains, and the molecular chains form coordination bonds with the workpiece.
6. The manufacturing method according to claim 5, characterized in that, The step of covering the surface of the workpiece with the dissolving solution to form a protective film on the surface of the workpiece includes: The dissolving solution is sprayed onto the surface of the workpiece using a spraying device, wherein the temperature of the dissolving solution is between 50°C and 60°C during the spraying process.
7. The manufacturing method according to claim 5, characterized in that, The step of covering the surface of the workpiece with the dissolving solution to form a protective film on the surface of the workpiece includes: The workpiece to be processed is immersed in the dissolving solution for more than 20 seconds, wherein the temperature of the dissolving solution is between 50°C and 60°C; After removing the workpiece from the dissolving solution, the dissolving solution on the workpiece is spun dry; The workpiece to be processed is dried to form the protective film on its surface.
8. The manufacturing method according to claim 7, characterized in that, The drying process of the workpiece to be processed to form the protective film on the surface of the workpiece includes: The workpiece to be processed is baked for 10 to 30 minutes at a baking temperature between 50°C and 60°C.
9. The manufacturing method according to any one of claims 5 to 8, characterized in that, The solvent is ethanol, the solute is polyethylene, and the solvent accounts for more than or equal to 98% of the mixed solution.