Display device and method for mounting display device

Abstract

The embodiment of the present application provides a display device and a mounting method of the display device, the display device comprises: a cover plate, a display panel and a gas permeation prevention film, the second surface of the cover plate has a center area and a frame area arranged around the center area; the light emitting side of the display panel is bonded to the center area; the gas permeation prevention film is connected between the display panel and the frame area, the two ends of the gas permeation prevention film are fixedly connected with the frame area and the side of the display panel away from the cover plate respectively, so as to form a glue injection channel between the cover plate, the display panel and the gas permeation prevention film, the gas permeation prevention film has a glue injection port for injecting glue into the glue injection channel, the gas permeation prevention film is used for limiting the glue in the glue injection channel and discharging the air in the glue injection channel, so as to form a glue layer in the glue injection channel. According to the embodiment of the present application, the display panel can be closely bonded with the cover plate, the synergistic effect of the glue layer and the gas permeation prevention film realizes the tensile deformation compensation of the display panel, and the impact resistance of the display device is improved.

Description

Technical Field

[0001] This application relates to the field of display technology, and in particular to a display device and a method for mounting the display device. Background Technology

[0002] With the increasing prevalence of display devices, such as mobile phones and tablets, they have become indispensable social and entertainment tools in people's daily lives, and people's requirements for display devices are also getting higher and higher. Narrow-bezel display devices, such as curved mobile phones and curved projectors, are becoming increasingly popular among users due to their excellent visual effects.

[0003] Currently, the usual method for handling the bezel of a display device is to reserve a dispensing platform and then use a bezel injection molding process to inject adhesive into the dispensing platform to achieve the mounting of the display device and prevent the intrusion of external liquids such as water, thus achieving a sealing effect. However, this method results in poor impact resistance of the display panel edges, which cannot guarantee the performance of the display device. Summary of the Invention

[0004] This application provides a display device and a mounting method for the display device, which aims to improve the impact resistance of the display device.

[0005] An embodiment of the first aspect of this application provides a display device, including:

[0006] A cover plate having a first surface and a second surface disposed opposite to each other, the second surface having a central region and a border region disposed around the central region;

[0007] The display panel, wherein the light-emitting side of the display panel is bonded to the central region;

[0008] An anti-permeability air membrane is connected between the display panel and the bezel area. One end of the anti-permeability air membrane is fixedly connected to the surface of the display panel opposite to the cover plate, and the other end of the anti-permeability air membrane is fixedly connected to the bezel area to form an adhesive injection channel between the cover plate, the display panel, and the anti-permeability air membrane. The anti-permeability air membrane has an adhesive injection port communicating with the adhesive injection channel. The adhesive injection port is used to inject adhesive into the adhesive injection channel. The anti-permeability air membrane is used to confine the adhesive within the adhesive injection channel and expel air from the adhesive injection channel to form an adhesive layer within the adhesive injection channel.

[0009] According to an embodiment of the first aspect of this application, the display device includes a planar portion and a curved portion located on at least one side of the planar portion, and at least one of the glue injection channels is disposed on the curved portion.

[0010] According to any of the foregoing embodiments of the first aspect of this application, the curved surface includes a first curved surface and a second curved surface disposed at opposite ends of the planar portion in a first direction, and the glue injection channel has a plurality of channels, which are respectively disposed on the first curved surface and the second curved surface.

[0011] According to any of the foregoing embodiments of the first aspect of this application, the display device further includes a third curved surface and a fourth curved surface disposed at opposite ends of the planar portion in a second direction, and a plurality of the glue injection channels are respectively disposed on the first curved surface, the second curved surface, the third curved surface and the fourth curved surface.

[0012] According to any of the foregoing embodiments of the first aspect of this application, the first curved surface, the third curved surface, the second curved surface, and the fourth curved surface are sequentially connected to form a bent region, and the glue injection channel extends circumferentially along the bent region to form an annular closed channel.

[0013] According to any of the foregoing embodiments of the first aspect of this application, it further includes a first seal and a second seal, the adhesive channel having two openings opposite each other along its extension direction, the first seal and the second seal being used to seal the two openings.

[0014] According to any of the foregoing embodiments of the first aspect of this application, the display device further includes a buffer layer, the two ends of which are fixedly connected to the frame area and the side of the display panel away from the light-emitting side, respectively, the side of the anti-permeability gas membrane away from the adhesive layer is attached to the buffer layer, and the buffer layer has a plurality of vibration-absorbing holes.

[0015] According to any of the foregoing embodiments of the first aspect of this application, the display device further includes a mesh skeleton embedded in the buffer layer.

[0016] According to any of the foregoing embodiments of the first aspect of this application, at least one of the frame area and the side surface of the display panel facing away from the cover plate is provided with an adhesive member, the adhesive member being used to adhere the anti-permeability gas membrane.

[0017] According to any of the foregoing embodiments of the first aspect of this application, the adhesive includes a first adhesive disposed in the frame area and a second adhesive disposed on the surface of the display panel facing away from the cover plate. One end of the anti-permeability gas membrane along its cross-sectional direction is bonded to the side of the display panel facing away from the light-emitting side by the first adhesive, and the other end is bonded to the frame area by the second adhesive.

[0018] According to any of the foregoing embodiments of the first aspect of this application, the first adhesive and / or the second adhesive is any one of polyurethane adhesive, silicone rubber, hot melt adhesive, acrylic adhesive or water-soluble curing adhesive.

[0019] According to any of the foregoing embodiments of the first aspect of this application, the impermeable air membrane is any one of non-woven fabric, polytetrafluoroethylene hydrophobic membrane, polyvinylidene fluoride hydrophobic membrane, polypropylene hydrophobic membrane or polymer foam.

[0020] According to any of the foregoing embodiments of the first aspect of this application, the display device further includes a middle frame and a rear cover. The middle frame has a first end face and a second end face opposite to each other along the thickness direction of the display device. The cover plate is fixedly connected to the first end face, and the second end face is fixedly connected to the rear cover. A receiving cavity is formed between the cover plate and the middle frame. The display panel is fixedly installed in the receiving cavity. The side of the anti-permeability gas membrane facing away from the adhesive layer is bonded to the middle frame by a third adhesive.

[0021] According to any of the foregoing embodiments of the first aspect of this application, the third adhesive is any one of a light-curing adhesive, an ultraviolet-curing adhesive, or an epoxy resin adhesive.

[0022] An embodiment of the second aspect of this application also provides a method for mounting a display device, wherein the display device is the display device described in any of the foregoing embodiments of the first aspect of this application, and the method for mounting the display device includes:

[0023] The light-emitting side of the display panel is bonded to the central area;

[0024] The two ends of the anti-permeability gas membrane are respectively fixedly connected to the side of the display panel away from the light-emitting side and the frame area to form an adhesive injection channel between the cover plate, the display panel and the anti-permeability gas membrane;

[0025] The adhesive is injected into the adhesive channel from the injection port and then cured to form the adhesive layer.

[0026] According to an embodiment of the second aspect of this application, the step of injecting adhesive from the injection port into the injection channel and curing the adhesive to form the adhesive layer includes:

[0027] The molding die is placed over the impermeable gas membrane, and the through hole of the molding die is aligned with the injection port.

[0028] Insert the needle of the glue injector into the through hole and the glue injection port respectively, so as to inject the glue into the glue injection channel and cure the glue to form the glue layer;

[0029] According to any of the foregoing embodiments of the second aspect of this application, after the step of covering the conforming mold onto the impermeable gas membrane and aligning the through hole of the conforming mold with the glue injection port, and before the step of inserting the needle of the glue injector into the through hole and the glue injection port respectively to inject the glue into the glue injection channel and curing the glue to form the glue layer:

[0030] Adjust the dimensions of the mold along the thickness direction of the display device so that the dimensions of the glue injection channel along the thickness direction of the display device meet the preset dimensions, and tilt the cover plate to a preset angle so that the glue can flow evenly in the glue injection channel.

[0031] According to any of the foregoing embodiments of the second aspect of this application, in the step of inserting the needle of the dispensing device into the through hole and the dispensing port respectively to inject the adhesive into the dispensing channel, and curing the adhesive to form the adhesive layer:

[0032] After the glue injection is completed, the mold is removed from the impermeable air membrane.

[0033] The adhesive layer is cured and then etched to ensure that the adhesive layer meets the preset thickness and preset flatness.

[0034] According to any of the foregoing embodiments of the second aspect of this application, the glue injection channel has multiple channels; in the steps of removing the mold from the anti-permeability gas membrane after the glue injection is completed; curing the glue layer and etching the cured glue layer to make the glue layer meet the preset thickness and preset flatness:

[0035] After the glue is injected into one of the glue injection channels, the mold is removed and transferred clockwise or counterclockwise to the outer surface of another anti-permeability gas membrane. While injecting glue into the other glue injection channel, the glue layer in the glue injection channel after the glue injection is completed is cured. After multiple glue layers are cured, the multiple glue layers are etched one by one.

[0036] In the display device provided in this application, the light-emitting side of the display panel is bonded to the central area of ​​the second surface of the cover plate. The two ends of the anti-permeability membrane are fixedly connected to the frame area and the side of the display panel opposite to the light-emitting side, respectively, thereby forming an injection channel between the cover plate, the display panel, and the anti-permeability membrane. During injection, adhesive is injected into the injection channel through the injection port. Compared to the traditional injection method of opening an injection port on the cover plate and evacuating the injection mold to remove air, the embodiment of this application avoids opening holes in the cover plate and eliminates the need for an additional injection mold or injection channel. Vacuuming is performed, and the adhesive injection path is limited only by the anti-permeability air membrane, which removes air from the injection channel. After the adhesive fills the injection channel, it is cured to form a relatively regular strip-shaped adhesive layer at the joint edge of the display panel and the bezel area. This improves the adhesion between the display panel and the cover plate. At the same time, the regular adhesive layer enhances the impact resistance at the edge of the display panel, thus expanding the edge of the display panel. The synergistic effect of the cover plate edge and the anti-permeability air membrane compensates for the tensile deformation of the display panel, thereby improving the performance of the display device. Attached Figure Description

[0037] Other features, objects, and advantages of this application will become more apparent from the following detailed description of non-limiting embodiments with reference to the accompanying drawings, wherein the same or similar reference numerals denote the same or similar features.

[0038] Figure 1 This is a schematic diagram of the structure of a display device provided in the first aspect of this application;

[0039] Figure 2 This is one of the partial structural schematic diagrams of a display device provided in the first aspect embodiment of this application;

[0040] Figure 3 This is a second partial structural schematic diagram of a display device provided in the first aspect embodiment of this application;

[0041] Figure 4 This is a schematic flowchart of a mounting method for a display device provided in the second aspect of this application;

[0042] Figure 5 This is a schematic flowchart of a mounting method for a display device provided in another embodiment of the second aspect of this application;

[0043] Figure 6 This is a schematic flowchart of a mounting method for a display device provided in another embodiment of the second aspect of this application;

[0044] Figure 7 This is one of the mounting illustrations of the display device provided in the second aspect embodiment of this application;

[0045] Figure 8 This is the second mounting illustration of the display device provided in the second aspect embodiment of this application;

[0046] Figure 9 This is the third mounting illustration of the display device provided in the second aspect embodiment of this application.

[0047] Explanation of reference numerals in the attached figures:

[0048] 1. Cover plate; 11. Second surface; 111. Central region; 112. Border region; 12. First surface;

[0049] 2. Impermeable air membrane; 21. Glue inlet; 3. Display panel; 4. Glue inlet channel; 5. Glue layer; 6. Flat part; 7. Curved part; 8. First adhesive component; 9. Second adhesive component;

[0050] 100. Copying mold; 200. Glue injector; 201. Needle;

[0051] X, the first direction; Y, the second direction. Detailed Implementation

[0052] The features and exemplary embodiments of various aspects of this application will now be described in detail. Numerous specific details are set forth in the following detailed description to provide a comprehensive understanding of this application. However, it will be apparent to those skilled in the art that this application can be implemented without requiring some of these specific details. The following description of embodiments is merely intended to provide a better understanding of this application by illustrating examples. In the accompanying drawings and the following description, at least some well-known structures and techniques are not shown to avoid unnecessarily obscuring the application; and, for clarity, the dimensions of some structures may be exaggerated. Furthermore, the features, structures, or characteristics described below can be combined in any suitable manner in one or more embodiments.

[0053] In the description of this application, it should be noted that, unless otherwise stated, "a plurality of" means two or more; the terms "upper," "lower," "left," "right," "inner," "outer," etc., indicating orientation or positional relationships are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation on this application. Furthermore, the terms "first," "second," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0054] The directional terms appearing in the following description refer to the directions shown in the figures and are not intended to limit the specific structure of the embodiments of this application. It should also be noted in the description of this application that, unless otherwise explicitly specified and limited, the terms "installation" and "connection" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a direct connection or an indirect connection. Those skilled in the art can understand the specific meaning of the above terms in this application according to the specific circumstances.

[0055] With the increasing prevalence of display devices, such as mobile phones and tablets, they have become indispensable social and entertainment tools in people's daily lives, and people's requirements for display devices are also getting higher and higher. Narrow-bezel display devices, such as curved mobile phones and curved projectors, are becoming increasingly popular among users due to their excellent visual effects.

[0056] In related technologies, the usual method for processing the bezel of a display device is to reserve a dispensing platform and then use a bezel injection molding process to inject adhesive into the dispensing platform to achieve the mounting of the display device and prevent the intrusion of external liquids such as water, thus achieving a sealing effect. However, this method results in poor impact resistance of the display panel edges, which cannot guarantee the performance of the display device.

[0057] To solve the above-mentioned technical problems, this application provides an anti-permeability air membrane 2 at the joint edge of the display panel 3 and the cover plate 1, and the anti-permeability air membrane 2, the display panel 3 and the cover plate 1 surround to form an adhesive injection channel 4. Adhesive is injected into the adhesive injection channel 4 to form an adhesive layer 5. The adhesive layer 5 and the anti-permeability air membrane 2 work together to achieve impact protection for the edge of the display panel 3, while ensuring a better adhesive injection effect.

[0058] To better understand this application, the following will be combined with... Figures 1 to 9 The display device and the mounting method of the display device according to the embodiments of this application will be described in detail.

[0059] Please refer to the following: Figures 1 to 3 This application provides a display device, comprising:

[0060] The cover plate 1 has a first surface 12 and a second surface 11 disposed opposite to each other. The second surface 11 has a central region 111 and a border region 112 disposed around the central region 111.

[0061] Display panel 3, the light-emitting side of display panel 3 is bonded to the central region 111.

[0062] An anti-permeability air membrane 2 is connected between the display panel 3 and the bezel area 112. One end of the anti-permeability air membrane 2 is fixedly connected to the surface of the display panel 3 facing away from the cover plate 1. The other end of the anti-permeability air membrane 2 is fixedly connected to the bezel area 112 to form an adhesive injection channel 4 between the cover plate 1, the display panel 3, and the anti-permeability air membrane 2. The anti-permeability air membrane 2 has an adhesive injection port 21 communicating with the adhesive injection channel 4, which is used to inject adhesive into the adhesive injection channel 4. The anti-permeability air membrane 2 is used to confine the adhesive within the adhesive injection channel 4 and expel air from the adhesive injection channel 4 to form an adhesive layer 5 within the adhesive injection channel 4.

[0063] In this embodiment, the light-emitting side of the display panel 3 is bonded to the central region 111 of the second surface 11 of the cover plate 1. The two ends of the anti-permeability gas membrane 2 are fixedly connected to the frame region 112 and the side of the display panel 3 facing away from the light-emitting side, respectively, thereby forming an injection channel 4 between the cover plate 1, the display panel 3, and the anti-permeability gas membrane 2. During injection, glue is injected into the injection channel 4 through the injection port 21. Compared to the traditional method of opening an injection port 21 on the cover plate 1 and evacuating the injection mold to remove air, this embodiment avoids opening holes in the cover plate 1 and eliminates the need for additional injection molds and injection channels. Vacuum treatment is performed on channel 4, and the glue injection can be achieved by limiting the glue injection path and expelling the air in the glue injection channel 4 only by the anti-permeability air membrane 2. After the glue fills the glue injection channel 4, the glue is cured to form a relatively regular strip-shaped glue layer 5 at the joint edge of the display panel 3 and the frame area 112, which improves the adhesion between the display panel 3 and the cover plate 1. At the same time, the regular glue layer 5 improves the impact resistance at the edge of the display panel 3, realizing the edge expansion of the display panel 3. Meanwhile, the synergistic effect of the edge of the cover plate 1 and the anti-permeability air membrane 2 realizes the tensile deformation compensation of the display panel 3, thereby improving the performance of the display device.

[0064] The display device provided in this application embodiment may be a mobile phone, computer, tablet computer, personal digital assistant (PDA), in-vehicle computer, television, smart wearable device, smart home device, virtual reality (VR) device, augmented reality (AR) device, etc. This application embodiment does not impose any special limitation on the specific form of the above-mentioned display device.

[0065] To facilitate a clear description of the subsequent structural features and their positional relationships, the positional relationships of the structures within the display device are defined using the X-axis, Y-axis, and Z-axis directions. Specifically, the X-axis represents the width of the display device, the Y-axis represents its length, and the Z-axis represents its thickness.

[0066] It should be noted that the display panel 3 includes, for example, OLED display panels and LED display panels. LED display panels include, for example, Micro-LED display panels and Mini-LED display panels. This application does not specifically limit the type of display panel 3.

[0067] In addition, the display panel 3 is not limited to a 2D display screen; it can also be a 2.5D curved screen or a 3D curved screen, and it can be a dual-curved screen or a quad-curved screen.

[0068] For ease of explanation, the following explanation will use a mobile phone as an example of a display device.

[0069] like Figure 2 As shown, along the Z-axis, the cover plate 1 has a first surface 12 and a second surface 11 opposite each other along the Z-axis. The first surface 12 serves as the exposed surface, located on the front of the mobile phone. The size of the cover plate 1 is larger than the size of the display panel 3, that is, the orthographic projection of the cover plate 1 onto the plane formed by the X and Y axes covers the orthographic projection of the display panel 3 onto the plane formed by the X and Y axes. The light-emitting side of the display panel 3 is bonded to the central region 111 of the second surface 11 to provide physical protection for the display panel 3 through the cover plate 1, while preventing moisture from entering the display panel 3, and resisting the action of mechanical external forces, thereby improving the scratch resistance and impact resistance of the display panel 3. The cover plate 1 also serves to support the display panel 3 and internal components such as the battery within the mobile phone, providing support for the display panel 3 and internal components, not only preventing the display panel 3 from collapsing, but also protecting the internal components. Optionally, the light-emitting side of the display panel 3 is bonded to the central region 111 by a transparent adhesive layer. For example, the transparent adhesive layer is an optically transparent adhesive.

[0070] The frame region 112 is located outside the central region 111 and extends circumferentially along the central region 111, i.e., the frame region 112 is annular. The cover plate 1 is connected to other components of the mobile phone through its frame region 112. Optionally, the cover plate 1 is a glass cover plate, a polyimide (PI) cover plate, a polyethylene terephthalate (PET) cover plate, etc.

[0071] like Figure 3As shown, the first end of the anti-permeability gas membrane 2 is fixedly connected to the frame area 112, and the second end is fixedly connected to the side of the display panel 3 opposite to the light-emitting side, so as to form an adhesive injection channel 4 between the anti-permeability gas membrane 2, the display panel 3, and the cover plate 1. The anti-permeability gas membrane 2 can be fixed to the frame area 112 and the side of the display panel 3 opposite to the light-emitting side by thermoforming. Alternatively, adhesive can be applied to the side of the frame area 112 and the side of the display panel 3 opposite to the light-emitting side, and the two ends of the anti-permeability gas membrane 2 can be fixed to the side of the frame area 112 and the side of the display panel 3 opposite to the light-emitting side by the adhesive.

[0072] It should be noted that the impermeable gas membrane 2 is a structure with a certain porosity, capable of preventing the passage of polymeric materials such as glue while allowing gas to pass through, ensuring that air can be effectively discharged during the glue injection process while the glue is completely blocked within the glue injection channel 4. Optionally, the thickness of the impermeable gas membrane 2 is 50μm to 100μm, and its air permeability meets the requirement of not less than 200ml / min·cm2 under a pressure difference of 1kPa. For example, the impermeable gas membrane 2 can be made of polytetrafluoroethylene porous membrane material with a porosity of 30% to 50%. Alternatively, the gas membrane material can be expanded polyethylene or composite nanofiber material.

[0073] Optionally, the anti-permeation gas membrane 2 is elongated and extends along the first direction X or the second direction Y, that is, the anti-permeation gas membrane 2 extends along the joint edge of the display panel 3 and the frame area 112, thereby forming an injection channel 4 with sufficient length in the first direction X or the second direction Y.

[0074] Optionally, the cross-sectional shape of the anti-permeability air membrane 2 can be arc-shaped, semi-circular, U-shaped, or trapezoidal, thereby forming an adhesive injection channel 4 with an arc-shaped, semi-circular, U-shaped, or trapezoidal cross-section among the cover plate 1, display panel 3, and anti-permeability air membrane 2. In a specific embodiment, the anti-permeability air membrane 2 extends along the Z-axis at an inclined angle of 5° to 15°, forming an annular adhesive injection channel 4 with a trapezoidal cross-section between the cover plate 1, display panel 3, and anti-permeability air membrane 2. Of course, the cross-sectional shape of the adhesive injection channel 4 can also be other geometric shapes, and this application embodiment does not specifically limit this.

[0075] Optionally, the injection port 21 is located in the middle section of the anti-permeability air membrane 2, that is, in the central area of ​​the wall of the injection channel 4. The injection port 21 is connected to the injection channel 4. Optionally, the adhesive is a two-component epoxy resin adhesive. During the injection process, the adhesive is injected into the injection channel 4 through the injection port 21 at a certain pressure. During the injection process, the microporous structure of the anti-permeability air membrane 2 allows air to escape along its own pores, thus preventing the adhesive from penetrating. Therefore, compared with the traditional method of opening the injection port 21 on the cover plate 1 and evacuating the injection mold to remove air, the embodiment of this application can avoid opening holes in the cover plate 1, and does not require setting an additional injection mold or evacuating the injection channel 4. The injection can be achieved by simply limiting the injection path and removing air with the anti-permeability air membrane 2. After the adhesive fills the injection channel 4, the adhesive can be heat-cured at 60°C to 80°C to form an adhesive layer 5. An impermeable gas membrane 2, a cover plate 1, and a display panel 3 are used to define the glue injection channel 4. In particular, when the glue injection channel 4 extends along the first direction X or the second direction Y, a relatively regular strip-shaped glue layer 5 can be formed at the joint edge of the display panel 3 and the frame area 112, thereby expanding the edge of the display panel 3. The regular glue layer 5 improves the impact resistance at the edge of the display panel 3, thereby improving the performance of the display device.

[0076] Optionally, the dimension of the adhesive layer 5 along the Z-axis is 0.3mm to 0.8mm. The elastic modulus of the cured adhesive layer 5 is 1GPa to 5GPa, so that when the frame area 112 is subjected to impact, the adhesive layer 5 absorbs energy through shear deformation. At the same time, the synergistic effect of the edge of the cover plate 1 and the anti-permeability air membrane 2 realizes the tensile deformation compensation of the display panel 3.

[0077] Optionally, a guide channel is also provided in the glue injection channel 4 so that the glue can be quickly and evenly distributed in the channel, thereby improving the glue coating effect.

[0078] In some alternative embodiments, such as Figure 1 As shown, the display device includes a flat portion 6 and a curved portion 7 located on at least one side of the flat portion 6. At least one glue injection channel 4 is provided on the curved portion 7.

[0079] In these optional embodiments, to ensure the smooth progress of the adhesive injection process and to guarantee the structural integrity and stability of the display device during production, a display device is provided, comprising a flat portion 6 and a curved portion 7 on at least one side. At least one adhesive injection channel 4 is disposed on the curved portion 7. The curved portion 7 is the edge or external curved area of ​​the display device, has a certain curvature, and is manufactured from flexible or rigid materials to form a visual effect and physical structure different from the flat portion 6. The adhesive injection channel 4 is disposed on the curved portion 7, enabling the adhesive layer 5 to provide reliable adhesion to the edge of the display panel 3 and the frame of the cover plate 1.

[0080] Specifically, the glue injection channel 4 is located on the inner edge of the curved surface 7 and is arranged along the curvature of the curved surface 7. Optionally, the glue injection channel 4 extends along the edge of the curved surface 7 and is adapted to the shape of the curved surface 7 so that the glue can be evenly distributed in the joint area of ​​the display panel 3 and the cover plate 1 during the glue injection process, ensuring the strength and stability of the connection between the display panel 3 and the cover plate 1.

[0081] Optionally, the glue injection channel 4 can be designed with a gradually widening shape so that the glue can smoothly fill the glue injection channel 4, while avoiding glue accumulation or retention caused by the curvature change of the curved surface 7, thus ensuring the glue injection effect.

[0082] In some alternative embodiments, the curved surface 7 includes a first curved surface and a second curved surface disposed at opposite ends of the planar portion 6 in the first direction X. Multiple glue injection channels 4 are provided, with the multiple glue injection channels 4 respectively disposed on the first curved surface and the second curved surface.

[0083] In these optional embodiments, in order to ensure the structural stability and bonding strength of the display device, multiple glue injection channels 4 are designed and respectively located on the first curved surface and the second curved surface to enhance the bonding force between the display panel 3 and the cover plate 1 in the curved surface 7. At the same time, it ensures that the glue layer 5 can be set on the curved surface 7 to form impact protection for the weak points of the display device, prevent the display panel 3 from being damaged by the curved surface 7, and improve the performance of the display device.

[0084] Specifically, the first curved surface and the second curved surface are located at opposite ends of the flat portion 6 along the first direction X, i.e., the first curved surface and the second curved surface are respectively provided along the long side of the display device. Optionally, the first curved surface and the second curved surface are symmetrically arranged along the second direction Y. The first curved surface and the second curved surface have a certain curvature to form a curved visual effect and physical structure. Multiple glue injection channels 4 are distributed in their respective areas of the first curved surface and the second curved surface to ensure that glue can be injected into the corresponding curved surface 7, thereby enhancing the adhesion between the display panel 3 and the cover plate 1 in the curved surface 7. At the same time, it ensures that an adhesive layer 5 is provided in each curved surface 7, further forming impact protection for the weak points of the display device, improving the stress uniformity of the display device, preventing the display panel 3 from being damaged by collisions with the curved surface 7, and improving the performance of the display device.

[0085] In some alternative embodiments, the display device further includes a third curved surface and a fourth curved surface disposed at opposite ends of the planar portion 6 in the second direction Y. A plurality of injection channels 4 are respectively disposed on the first curved surface, the second curved surface, the third curved surface, and the fourth curved surface.

[0086] In these optional embodiments, the first and second curved surfaces are located at both ends of the flat portion 6 along the first direction X and each has a certain curvature, while the third and fourth curved surfaces are located at both ends of the flat portion 6 along the second direction Y. The curvature and layout of each curved surface 7 can be adjusted according to the design requirements of the display device to provide optimal visual effects and physical structure. To enhance the structural stability of the display device and ensure strong adhesion between components, multiple glue injection channels 4 are respectively located on the first, second, third, and fourth curved surfaces to ensure that each curved surface 7 can form better impact protection, while ensuring that glue can be evenly injected into the joint area of ​​each curved surface 7 and the flat surface 6 during the production process, thereby enhancing the structural stability of the display device.

[0087] The size of each injection channel 4 and the number of injection channels 4 on each curved surface 7 can be reasonably set according to actual needs to ensure better impact resistance and better adhesion between the display panel 3 and the cover plate 1. For example, one injection channel 4 can be provided on each of the first and second curved surfaces, and the size of the injection channel 4 along the second direction Y is consistent with or slightly larger than the size of the display panel 3 along the second direction Y. Alternatively, three injection channels 4 can be provided on each of the first and second curved surfaces, with the three injection channels 4 spaced apart along the second direction Y.

[0088] In some optional embodiments, the first curved surface, the third curved surface, the second curved surface, and the fourth curved surface are connected sequentially to form a bent region. The glue injection channel 4 extends circumferentially along the bent region to form a closed annular channel.

[0089] In these optional embodiments, the glue injection channel 4 is annular and extends circumferentially along the bending area, that is, it is arranged circumferentially around the edge of the display panel 3, thereby forming a closed-loop enclosure structure at the edge of the display panel 3. The glue layer 5 inside the glue injection channel 4 is annular, which can provide all-round impact protection for the display panel 3, making the display panel 3 less likely to be damaged by collision, and further improving the performance of the display device.

[0090] In some alternative embodiments, the display device further includes a first seal and a second seal. The injection channel 4 has two openings opposite each other along its extension direction. The first seal and the second seal are used to seal the two openings.

[0091] In these optional embodiments, the glue injection channel 4 has two openings opposite each other along its extension direction, which are located at opposite ends of the glue injection channel 4. To prevent glue leakage during the glue injection process, or to prevent the glue from being unevenly distributed due to the influence of the external environment, the two openings are sealed by a first seal and a second seal to ensure that the glue does not overflow from the openings during the glue injection process, thereby ensuring the accuracy of the glue injection and the overall structural stability of the display device.

[0092] Optionally, the first and second seals are made of flexible materials with a certain degree of elasticity and compressibility, enabling them to tightly contact the opening of the glue injection channel 4 and form a seal. For example, the first and second seals are made of rubber. When glue is injected into the glue injection channel 4, the first and second seals effectively prevent glue from flowing out or overflowing from the opening, and prevent glue from spilling into other areas.

[0093] To ensure a good seal, the positions and shapes of the first and second seals are adjusted according to the specific design of the adhesive injection channel 4. For example, the shape of the seal can match the opening shape of the adhesive injection channel 4 to provide a better sealing effect. At the same time, the seal can be firmly fixed at the opening of the adhesive injection channel 4 by pressing, screw fixing, or other methods to ensure that the seal will not fall off or shift during the entire adhesive injection process.

[0094] In some optional embodiments, the display device further includes a buffer layer. The two ends of the buffer layer are fixedly connected to the bezel area 112 and the side of the display panel 3 facing away from the light-emitting side, respectively. An anti-permeability gas membrane 2 is attached to the buffer layer on the side facing away from the adhesive layer 5, and the buffer layer has a plurality of vibration-absorbing holes.

[0095] In these alternative embodiments, by adding a buffer layer to the outside of the anti-permeability gas membrane 2, the vibration resistance of the display device is improved, the impact of external vibration on the display effect is reduced, and the sealing performance of the display device is enhanced to prevent the penetration of external substances.

[0096] Optionally, the buffer layer is made of a material with good elasticity and shock absorption properties, such as silicone or rubber, so that the buffer layer can effectively absorb external impacts and vibrations, reduce the impact of external forces on the display panel 3, and ensure the stability and durability of the display device during use. The two ends of the buffer layer are fixed at the bezel area 112 and the side of the display panel 3 away from the light-emitting side, respectively, ensuring that the buffer layer can be firmly fixed in the display device. The anti-permeability gas membrane 2 is tightly attached to the surface of the buffer layer on the side away from the adhesive layer 5, effectively enhancing the sealing of the display device and preventing external substances such as moisture or dust from penetrating into the adhesive injection channel 4.

[0097] To further enhance its vibration absorption effect and ensure that the air in the glue injection channel 4 is smoothly discharged, several vibration absorption holes are opened on the buffer layer to effectively reduce the intensity of external vibration transmitted to the display panel 3, making the display effect clearer and more stable.

[0098] In some alternative embodiments, the display device further includes a mesh skeleton. The mesh skeleton is embedded within the buffer layer to ensure the positional stability of the buffer layer and the anti-permeability gas membrane 2, preventing displacement of the anti-permeability gas membrane 2 and the buffer layer, and reducing the degree of deformation of the adhesive injection channel 4.

[0099] In some alternative embodiments, at least one of the bezel area 112 and the side surface of the display panel 3 facing away from the cover plate 1 is provided with an adhesive. The adhesive is used to bond the impermeable gas membrane 2.

[0100] In these alternative embodiments, the connection between the anti-permeability air membrane 2 and the frame area 112 and / or the display panel 3 is achieved by an adhesive, which improves the ease of mounting.

[0101] In some alternative embodiments, such as Figure 2 and Figure 3 As shown, the adhesive includes a first adhesive 8 disposed on the frame area 112 and a second adhesive 9 disposed on the surface of the display panel 3 facing away from the cover plate 1. One end of the anti-permeability gas membrane 2 is bonded to the side of the display panel 3 facing away from the light-emitting side by the first adhesive 8, and the other end is bonded to the frame area 112 by the second adhesive 9.

[0102] In these optional embodiments, a first adhesive member 8 and a second adhesive member 9 are respectively provided on the side of the frame region 112 and the side of the display panel 3 away from the light-emitting side. The two ends of the anti-permeability gas membrane 2 are firmly fixed to the frame region 112 and the side of the display panel 3 away from the light-emitting side by the first adhesive member 8 and the second adhesive member 9, respectively.

[0103] In some optional embodiments, the first adhesive 8 and / or the second adhesive 9 are any of polyurethane adhesive, silicone rubber, hot melt adhesive, acrylic adhesive, or water-soluble curing adhesive. Users can choose according to their actual needs, and this embodiment does not impose specific limitations on this.

[0104] In some optional embodiments, the anti-permeability air membrane 2 is any one of non-woven fabric, polytetrafluoroethylene hydrophobic membrane, polyvinylidene fluoride hydrophobic membrane, polypropylene hydrophobic membrane, or polymer foam. Users can reasonably select the type of anti-permeability air membrane 2 according to actual needs, as long as it can ensure that the anti-permeability air membrane 2 can effectively expel air from the glue injection channel 4 and prevent glue penetration during the glue injection process. This embodiment does not make specific limitations in this regard.

[0105] Optionally, the impermeable air membrane 2 is made of non-woven fabric.

[0106] In some optional embodiments, the display device further includes a mid-frame and a rear cover. The mid-frame has opposing first and second end faces along the thickness direction of the display device. The cover plate 1 is fixedly connected to the first end face. The second end face is fixedly connected to the rear cover. A receiving cavity is formed between the cover plate 1 and the mid-frame. The display panel 3 is fixedly mounted in the receiving cavity. The side of the anti-permeability gas membrane 2 facing away from the adhesive layer 5 is bonded to the mid-frame by a third adhesive.

[0107] In these optional embodiments, the display device includes a cover plate 1, a display panel 3, a middle frame, and a rear cover. Optionally, the cover plate 1 can be bonded to the first end face of the middle frame using an adhesive injection process. A receiving space is formed between the cover plate 1 and the middle frame. The display panel 3 is located within the receiving space, and the light-emitting side and the middle area of ​​the display panel 3 are bonded together. The impermeable gas membrane 2 and the first end face of the middle frame are bonded together by a third adhesive, thereby firmly fixing the display panel 3 within the receiving space. The second end face of the middle frame and the rear cover can also be connected together using an adhesive injection process to form a receiving cavity between the middle frame and the rear cover. A printed circuit board, a battery, and functional devices are installed within the receiving cavity. The printed circuit board is communicatively connected to the display panel 3 via a flexible circuit to transmit signals to the display panel 3. The functional devices include, for example, a camera, a speaker, a microphone, and a processor.

[0108] Optionally, the materials for the mid-frame and back cover may include opaque materials such as plastic, vegan leather, and fiberglass, or translucent materials such as glass. This application does not impose any special limitations on the materials for the mid-frame and back cover.

[0109] In some alternative embodiments, the third adhesive is any one of a light-curing adhesive, a UV-curing adhesive, or an epoxy resin adhesive.

[0110] In these alternative embodiments, photocurable adhesive, UV-curable adhesive, or epoxy resin adhesive are all suitable for bonding hydrophobic materials, that is, they can firmly bond the hydrophobic anti-permeability membrane 2 to the middle frame, thereby ensuring the bonding effect between the display panel 3, the cover plate 1, and the middle frame.

[0111] Please refer to the following: Figures 1 to 9 The second aspect of this application also provides a method for mounting a display device, used for mounting a display device, wherein the display device is the display device described in any embodiment of the first aspect of this application, such as... Figure 4 As shown, the mounting method for the display device includes:

[0112] Step S01: Attach the light-emitting side of the display panel 3 to the central area 111.

[0113] Step S02: Fix both ends of the anti-permeation gas membrane 2 to the side of the display panel 3 away from the light-emitting side and the frame area 112 respectively, so as to form an adhesive injection channel 4 between the cover plate 1, the display panel 3 and the anti-permeation gas membrane 2.

[0114] Step S03: Inject glue into the glue channel 4 through the glue injection port 21, and cure the glue to form the glue layer 5.

[0115] In the second aspect of this application, firstly, step S01 is used to bond the light-emitting side of the display panel 3 to the frame area 112. Then, step S02 is used to fix both ends of the anti-permeation gas membrane 2 to the side of the display panel 3 away from the light-emitting side and the frame area 112, respectively, so as to form an adhesive injection channel 4 between the cover plate 1, the display panel 3 and the anti-permeation gas membrane 2. Then, step S03 is used to inject adhesive into the adhesive injection channel 4 from the adhesive injection port 21 and cure the adhesive to form an adhesive layer 5. Using this method to mount the display device avoids drilling holes in the cover plate 1, and eliminates the need for additional glue injection molds and vacuum treatment of the glue injection channel 4. Glue injection is achieved simply by limiting the glue injection path and expelling air from the glue injection channel 4 using the anti-permeability air membrane 2. After the glue fills the glue injection channel 4, the glue is cured to form a relatively regular strip-shaped glue layer 5 at the joint edge of the display panel 3 and the frame area 112. This improves the adhesion between the display panel 3 and the cover plate 1. At the same time, the regular glue layer 5 enhances the impact resistance at the edge of the display panel 3, achieving edge expansion of the display panel 3. Furthermore, the synergistic effect of the edge of the cover plate 1 and the anti-permeability air membrane 2 compensates for the tensile deformation of the display panel 3, thereby improving the performance of the display device.

[0116] In some alternative embodiments, such as Figure 5 As shown, the steps of injecting adhesive from the injection port 21 into the injection channel 4 and curing the adhesive to form the adhesive layer 5 include:

[0117] Step S031: Cover the mold 100 with the anti-permeability air membrane 2, and set the through hole of the mold 100 to correspond to the injection port 21.

[0118] Step S032: Insert the needle 201 of the glue injector 200 into the through hole and the glue injection port 21 respectively, so as to inject glue into the glue injection channel 4 and cure the glue to form the glue layer 5.

[0119] In these alternative embodiments, after fixing the impermeable gas membrane 2, as... Figure 7As shown, in step S031, the conforming mold 100 is placed on the anti-permeability gas membrane 2, and the through hole of the conforming mold 100 is set to correspond to the glue injection port 21, so that the conforming mold can support and limit the anti-permeability gas membrane 2, that is, limit the shape of the glue injection channel 4, thereby ensuring the formation of a glue layer 5 of a specific shape; then in step S032, the needle 201 of the glue injector 200 is inserted into the through hole and the glue injection port 21 respectively, so as to inject glue into the glue injection channel 4, and cure the glue to form the glue layer 5.

[0120] In some alternative embodiments, such as Figure 6 As shown, after the step of covering the mold 100 on the impermeable gas membrane 2 and setting the through hole of the mold 100 to correspond to the glue injection port 21, and before the step of inserting the needle 201 of the glue injector 200 into the through hole and the glue injection port 21 respectively to inject glue into the glue injection channel 4, and curing the glue to form the glue layer 5, the following steps are included:

[0121] Step S0311: Adjust the dimensions of the molding die 100 along the thickness direction of the display device so that the dimensions of the glue injection channel 4 along the thickness direction of the display device meet the preset dimensions, and tilt the cover plate 1 to the preset angle so that the glue can flow evenly in the glue injection channel 4.

[0122] In these optional embodiments, after the contour mold 100 is placed on the impermeable air membrane 2 and the through hole of the contour mold 100 is set to correspond to the glue injection port 21, the position of the contour mold 100 is adjusted in step S0311 to ensure that the thickness of the glue injection channel 4 meets the assembly requirements of the whole machine. Then, the cover plate 1 is tilted at a preset angle to facilitate the glue to spread quickly and evenly in the glue injection channel 4 during the subsequent glue injection process, thereby ensuring the uniformity and stability of the glue layer 5.

[0123] In some optional embodiments, in the steps of inserting the needle 201 of the dispensing applicator 200 into the through hole and the dispensing port 21 respectively to inject adhesive into the dispensing channel 4, and curing the adhesive to form the adhesive layer 5:

[0124] After the glue injection is completed, the mold 100 is removed from the impermeable air membrane 2.

[0125] The adhesive layer 5 is cured and then etched to ensure that the adhesive layer 5 meets the preset thickness and preset flatness.

[0126] In these optional embodiments, after the adhesive is injected, the molding mold 100 is removed. Alternatively, the adhesive layer 5 can be cured first by heating or at room temperature, and the settling time can be selected according to the characteristics of the adhesive. For example, when the adhesive stops flowing in the injection channel 4 after 60 seconds of curing, the molding mold 100 is then removed. Figure 8As shown, after the adhesive layer 5 has cured, the excess bumps on the surface of the adhesive layer 5 can be removed by laser etching to ensure that the adhesive surface of the adhesive layer 5 and the middle frame meets the preset flatness. At the same time, in order to meet the assembly requirements of the whole machine, the adhesive layer 5 can be cut to make the adhesive layer 5 meet the preset thickness requirements.

[0127] In some optional embodiments, the dispensing channel 4 has multiple channels. After dispensing, the molding die 100 is removed from the impermeable gas membrane 2; the adhesive layer 5 is cured, and the cured adhesive layer 5 is etched to ensure that the adhesive layer 5 meets the preset thickness and preset flatness.

[0128] like Figure 9 As shown, after the glue is injected into the injection channel 4, the molding mold 100 is removed and rotated in a counterclockwise or clockwise direction (e.g., as shown). Figure 9 (In the direction indicated by the arrow) it is transferred to the outer surface of another anti-permeability gas membrane 2. While injecting glue into another glue injection channel 4, the glue layer 5 in the glue injection channel 4 after the glue injection is completed is cured. After multiple glue layers 5 are cured, multiple glue layers 5 are etched one after another.

[0129] In these optional embodiments, there are multiple glue injection channels 4. After the first glue injection channel 4 is filled with glue, the molding mold 100 is removed and moved clockwise or counterclockwise to the position of the second glue injection channel 4 and placed on the corresponding anti-permeability gas membrane 2 to prepare for the glue injection of the second glue injection channel 4. While the second glue injection channel 4 is being filled with glue, the glue layer 5 in the first glue injection channel 4 that has been filled with glue is cured, that is, glue is filled and cured at the same time to prevent fluctuations in the process from affecting the position and shape of the glue layer 5 that has been filled with glue. This process is repeated until all glue layers 5 are prepared. Then, each glue layer 5 is etched one by one to ensure that each glue layer 5 meets the preset thickness and preset flatness to meet the assembly requirements of the whole machine.

[0130] Although this application has been described with reference to preferred embodiments, various modifications can be made thereto and components can be replaced with equivalents without departing from the scope of this application. In particular, the technical features mentioned in the various embodiments can be combined in any manner, provided there is no structural conflict. This application is not limited to the specific embodiments disclosed herein, but includes all technical solutions falling within the scope of the claims.

Claims

1. A display device, characterized in that, include: A cover plate having a first surface and a second surface disposed opposite to each other, the second surface having a central region and a border region disposed around the central region; The display panel, wherein the light-emitting side of the display panel is bonded to the central region; An anti-permeability air membrane is connected between the display panel and the bezel area. One end of the anti-permeability air membrane is fixedly connected to the surface of the display panel opposite to the cover plate, and the other end of the anti-permeability air membrane is fixedly connected to the bezel area to form an adhesive injection channel between the cover plate, the display panel, and the anti-permeability air membrane. The anti-permeability air membrane has an adhesive injection port communicating with the adhesive injection channel. The adhesive injection port is used to inject adhesive into the adhesive injection channel. The anti-permeability air membrane is used to confine the adhesive within the adhesive injection channel and expel air from the adhesive injection channel to form an adhesive layer within the adhesive injection channel.

2. The display device according to claim 1, characterized in that, The display device includes a flat portion and a curved portion located on at least one side of the flat portion, and at least one of the glue injection channels is disposed on the curved portion; Preferably, the curved surface includes a first curved surface and a second curved surface disposed at opposite ends of the planar portion in a first direction, and the glue injection channel has a plurality of channels, which are respectively disposed on the first curved surface and the second curved surface; Preferably, the display device further includes a third curved surface and a fourth curved surface disposed at opposite ends of the planar portion in a second direction, and the plurality of glue injection channels are respectively disposed on the first curved surface, the second curved surface, the third curved surface and the fourth curved surface; Preferably, the first curved surface, the third curved surface, the second curved surface, and the fourth curved surface are connected in sequence to form a bending region, and the glue injection channel extends circumferentially along the bending region to form a closed annular channel.

3. The display device according to claim 1 or 2, characterized in that, It also includes a first seal and a second seal, the glue channel having two openings opposite each other along its extension direction, the first seal and the second seal being used to seal the two openings.

4. The display device according to claim 1, characterized in that, The display device further includes a buffer layer, the two ends of which are fixedly connected to the frame area and the side of the display panel away from the light-emitting side, respectively. The side of the anti-permeability gas membrane away from the adhesive layer is attached to the buffer layer, and the buffer layer has a plurality of vibration-absorbing holes. Preferably, the display device further includes a mesh skeleton, which is embedded in the buffer layer.

5. The display device according to claim 1, characterized in that, At least one of the frame area and the side surface of the display panel facing away from the cover plate is provided with an adhesive member, which is used to adhere the anti-permeability gas membrane. Preferably, the adhesive includes a first adhesive disposed in the frame area and a second adhesive disposed on the surface of the display panel opposite to the cover plate. One end of the anti-permeability gas membrane is bonded to the side of the display panel opposite to the light-emitting side by the first adhesive, and the other end is bonded to the frame area by the second adhesive. Preferably, the first adhesive and / or the second adhesive are any one of polyurethane adhesive, silicone rubber, hot melt adhesive, acrylic adhesive or water-soluble curing adhesive.

6. The display device according to claim 1, characterized in that, The impermeable air membrane is any one of non-woven fabric, polytetrafluoroethylene hydrophobic membrane, polyvinylidene fluoride hydrophobic membrane, polypropylene hydrophobic membrane, or polymer foam.

7. The display device according to claim 1, characterized in that, The display device further includes a middle frame and a rear cover. The middle frame has a first end face and a second end face opposite to each other along the thickness direction of the display device. The cover plate is fixedly connected to the first end face, and the second end face is fixedly connected to the rear cover. A receiving cavity is formed between the cover plate and the middle frame. The display panel is fixedly installed in the receiving cavity. The side of the anti-permeability gas membrane facing away from the adhesive layer is bonded to the middle frame by a third adhesive. Preferably, the third adhesive is any one of a light-curing adhesive, an ultraviolet-curing adhesive, or an epoxy resin adhesive.

8. A method for mounting a display device, characterized in that, For mounting a display device, wherein the display device is the display device according to any one of claims 1-7, and the mounting method of the display device includes: The light-emitting side of the display panel is bonded to the central area; The two ends of the anti-permeability gas membrane are respectively fixedly connected to the side of the display panel away from the light-emitting side and the frame area to form an adhesive injection channel between the cover plate, the display panel and the anti-permeability gas membrane; The adhesive is injected into the adhesive channel from the injection port and then cured to form the adhesive layer.

9. The mounting method for the display device according to claim 8, characterized in that, The steps of injecting adhesive from the injection port into the injection channel and curing the adhesive to form the adhesive layer include: The molding die is placed over the impermeable gas membrane, and the through hole of the molding die is aligned with the injection port. Insert the needle of the glue injector into the through hole and the glue injection port respectively, so as to inject the glue into the glue injection channel and cure the glue to form the glue layer; Preferably, after the step of covering the conforming mold onto the impermeable gas membrane and aligning the through hole of the conforming mold with the glue injection port, and before the step of inserting the needle of the glue injector into the through hole and the glue injection port respectively to inject the glue into the glue injection channel and curing the glue to form the glue layer: Adjust the dimensions of the mold along the thickness direction of the display device so that the dimensions of the glue injection channel along the thickness direction of the display device meet the preset dimensions, and tilt the cover plate to a preset angle so that the glue can flow evenly in the glue injection channel.

10. The mounting method for the display device according to claim 9, characterized in that, In the step of inserting the needle of the dispensing device into the through hole and the dispensing port respectively to inject the adhesive into the dispensing channel, and curing the adhesive to form the adhesive layer: After the glue injection is completed, the mold is removed from the impermeable air membrane. The adhesive layer is cured and then etched to ensure that the adhesive layer meets the preset thickness and preset flatness. Preferably, the glue injection channel has multiple channels; after the glue injection is completed, the conforming mold is removed from the impermeable air membrane; In the steps of curing the adhesive layer and etching the cured adhesive layer to make the adhesive layer meet the preset thickness and preset flatness: After the glue is injected into one of the glue injection channels, the mold is removed and transferred clockwise or counterclockwise to the outer surface of another anti-permeability gas membrane. While injecting glue into the other glue injection channel, the glue layer in the glue injection channel after the glue injection is completed is cured. After multiple glue layers are cured, the multiple glue layers are etched one by one.

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