Electronic device

Abstract

The utility model provides electronic equipment, back glue and a gasket are arranged between a display screen and a middle frame of the electronic equipment, the back glue is used for connecting the display screen and the middle frame, the gasket is arranged on the middle frame, and the gasket is used for supporting the display screen; the gasket and the back adhesive are arranged at an interval, the gasket is arranged on one side, deviating from the edge of the electronic equipment, of the back adhesive, the back adhesive comprises a first exhaust channel, the gasket comprises a second exhaust channel, the first exhaust channel is communicated with the second exhaust channel, and the height of the gasket is lower than that of the back adhesive. Therefore, the back glue and the gasket are arranged between the display screen and the middle frame, the gasket is arranged on the inner side of the back glue, the height from the back glue to the gasket is slowly reduced, and when the display screen is subjected to external force, the gasket can support the display screen, so that the display screen can be in smooth transition. Moreover, the gasket and the back adhesive are both provided with the exhaust channels, and the air layer can be communicated with the outside through the exhaust channels, so that the influence of sudden change of air pressure on the display screen is reduced.

Description

Technical Field

[0001] The embodiments of the present application relate to the field of electronic technology, and in particular to an electronic device. Background Art

[0002] With the continuous development of display technology, foldable display terminals are gradually becoming a development trend in future mobile electronic products. When unfolded, foldable display terminals can provide a larger display area, improving the viewing experience. When folded, foldable display terminals can achieve a smaller size, making them easier for users to carry.

[0003] A foldable display terminal includes a flexible display, a back cover located behind the flexible display, and a middle frame located between the flexible display and the back cover, which supports the flexible display. The flexible display can be connected to the middle frame via adhesive backing, which secures the display to the large surface area of ​​the middle frame.

[0004] However, the adhesive backing has poor support and is prone to problems such as offset printing and mold printing, which affects the user experience. Utility Model Content

[0005] An embodiment of the present application provides an electronic device that solves the problem of poor adhesive support affecting the flatness of the display screen.

[0006] To achieve the above objectives, the present invention adopts the following technical solutions:

[0007] In a first aspect of an embodiment of the present application, an electronic device is provided, comprising: a display screen and a middle frame arranged in a stacked manner, and a backing adhesive and a gasket arranged between the display screen and the middle frame; the backing adhesive is used to connect the display screen and the middle frame, the gasket is arranged on the middle frame, and the gasket is used to support the display screen; the gasket and the backing adhesive are spaced apart, the gasket is arranged on the side of the backing adhesive facing away from the edge of the electronic device, the backing adhesive includes a first exhaust channel, the gasket includes a second exhaust channel, the first exhaust channel and the second exhaust channel are connected, and the height of the gasket is lower than the height of the backing adhesive. Thus, backing adhesive and gasket are arranged between the display screen and the middle frame, the gasket is arranged on the inner side of the backing adhesive, and the height from the backing adhesive to the gasket slowly decreases. When the display screen is subjected to external force, the gasket can support the display screen, so that the display screen can transition smoothly. In addition, both the gasket and the backing adhesive are provided with exhaust channels, and the air layer can be connected to the outside through the exhaust channels, reducing the impact of sudden changes in air pressure on the display screen.

[0008] In an optional implementation, the adhesive backing and the gasket are both arranged in a frame shape, and the adhesive backing is arranged around the gasket. Thus, the side walls of the adhesive backing, the display screen and the inner surface of the middle frame can be enclosed to form a first area, and the gasket is arranged in the first area. When the external air pressure suddenly changes, the display screen bends downward under the influence of the air pressure and contacts the gasket. The inner side wall of the gasket, the display screen and the inner surface of the middle frame are enclosed to form a second area. The outer side wall of the gasket, the inner side wall of the adhesive backing, the display screen and the inner surface of the middle frame are enclosed to form a third area. The outer side wall of the adhesive backing, the display screen and the inner surface of the middle frame are enclosed to form a fourth area. The fourth area can be connected to the outside. The third area can be connected to the fourth area through the first exhaust channel. The second area can be connected to the third area through the second exhaust channel. In this way, the air layer can be connected to the outside through the exhaust channel, reducing the impact of the sudden change in air pressure on the display screen.

[0009] In one optional implementation, the thickness of the adhesive backing gradually decreases as it moves away from the edge of the electronic device. Thus, the surface of the adhesive backing away from the midframe can be inclined, so that the distance between the upper surface of the adhesive backing and the display screen gradually increases as it moves away from the edge of the electronic device. This can better achieve a gradual height change, allowing for a smooth transition of the display screen.

[0010] In one optional implementation, the thickness of the gasket gradually decreases as it moves away from the adhesive backing. Thus, the surface of the gasket facing away from the midframe can be inclined, so that the distance between the upper surface of the gasket and the display gradually increases as it moves away from the edge of the electronic device. This allows for a better height gradient and a smooth transition across the display.

[0011] In an optional implementation, there are multiple adhesive strips, and first exhaust channels are provided between adjacent adhesive strips. Thus, multiple first exhaust channels can be provided, which can better communicate with the outside.

[0012] In an optional implementation, there are multiple gaskets, and second exhaust channels are provided between adjacent gaskets. Thus, multiple second exhaust channels can be provided, which can better communicate with the outside.

[0013] In an optional implementation, the electronic device further includes a connecting portion connected to the middle frame, the connecting portion being disposed on a side of the gasket away from the adhesive, and the plurality of gaskets being connected via the connecting portion. Thus, the plurality of gaskets and the connecting portion form a single unit, facilitating assembly.

[0014] In an optional implementation, the gasket and the connecting portion are integrally formed, thereby reducing production difficulty compared to forming the gasket and the connecting portion separately.

[0015] In an optional implementation, the first exhaust channel and the second exhaust channel are arranged opposite to each other, which can better connect the interior of the electronic device with the external environment and reduce the impact of sudden changes in air pressure on the display screen.

[0016] In an optional implementation, the middle frame includes a concave-convex area, and the concave-convex area and the adhesive backing are spaced apart. This can reduce the impact of the sudden step difference of the concave-convex area on the adhesive backing, thereby reducing the mold imprint of the display screen.

[0017] In an optional implementation, the concave-convex area and the gasket are spaced apart, thereby reducing the impact of sudden step changes in the concave-convex area on the gasket and reducing the mold imprint on the display screen.

[0018] In an optional implementation, a portion of the concave-convex area is disposed within the first exhaust channel, thereby fully utilizing the space of the second exhaust channel.

[0019] In an optional implementation, a portion of the concave-convex area is disposed within the second exhaust channel, thereby fully utilizing the space of the second exhaust channel.

[0020] In an optional implementation, the concave-convex area is provided with at least one of: screw holes, reinforcing ribs, and laser engraving structures. Thus, different types of concave-convex areas can be separated from the adhesive backing, reducing the impact of the concave-convex areas on the adhesive backing.

[0021] In an optional implementation, the thickness of the adhesive layer is uniform across the middle frame. This ensures uniform stiffness across the middle frame, ensuring balanced resistance to deformation during manufacturing and user use, and reducing mold buildup.

[0022] In an optional implementation, the thickness of the area where the gasket is provided on the middle frame is uniform. This ensures that the stiffness of the area where the gasket is provided on the middle frame is uniform, thus balancing the ability to resist deformation during manufacturing and user use, and reducing mold marks.

[0023] In an optional implementation, the thickness of the area where the adhesive is provided on the middle frame is gradually varied. This allows the stiffness of the area where the adhesive is provided on the middle frame to vary evenly, resulting in a more balanced resistance to deformation during manufacturing and user use, and reducing mold marks.

[0024] In an optional implementation, the thickness of the area of ​​the middle frame where the gasket is provided is gradually varied. This allows the stiffness of the area of ​​the middle frame where the gasket is provided to vary evenly, resulting in a more balanced resistance to deformation during manufacturing and user use, and reducing mold marks.

[0025] In an optional implementation, the adhesive backing is parallel to the gasket, thereby achieving a gradual thickness change from the adhesive backing to the gasket.

[0026] In an optional implementation, the adhesive backing and the gasket have the same shape, thereby better achieving a gradual thickness change from each part of the adhesive backing to the gasket.

[0027] In an optional implementation, the shape of the adhesive includes: straight line, arc line, broken line, irregular shape. Thus, the shape of the adhesive is flexible, and it is easy to apply to regular or irregular adhesive areas, and can better avoid concave and convex areas.

[0028] In an optional implementation, the material of the gasket includes polyester film. Therefore, the gasket adopts this material to better support the display screen and provide a buffer for the display screen.

[0029] In an optional implementation, the distance between the gasket and the adhesive is in the range of 3-7 mm. Thus, the distance between the adhesive and the gasket is small, which can better achieve the thickness gradient from the adhesive to the gasket.

[0030] In an optional implementation, the height difference between the adhesive and the gasket is between 30-70 μm. Thus, the height difference between the adhesive and the gasket is small, and a gradual thickness change from the adhesive to the gasket can be achieved.

[0031] In an optional implementation, the width of the first exhaust channel is greater than 5 mm, and / or the width of the second exhaust channel is greater than 5 mm. Thus, the exhaust channels of the adhesive and the gasket are relatively wide, which is conducive to communication with the outside.

[0032] An embodiment of the present application provides an electronic device, wherein a back glue and a gasket are provided between the display screen and the middle frame of the electronic device, the back glue is used to connect the display screen and the middle frame, the gasket is arranged on the middle frame, and the gasket is used to support the display screen; the gasket and the back glue are spaced apart, the gasket is arranged on the side of the back glue away from the edge of the electronic device, the back glue includes a first exhaust channel, the gasket includes a second exhaust channel, the first exhaust channel and the second exhaust channel are connected, and the height of the gasket is lower than the height of the back glue. Thus, a back glue and a gasket are provided between the display screen and the middle frame, the gasket is provided on the inner side of the back glue, and the height from the back glue to the gasket slowly decreases. When the display screen is subjected to external force, the gasket can support the display screen, so that the display screen can transition smoothly. In addition, an exhaust channel is provided on both the gasket and the back glue, and the air layer can be connected to the outside through the exhaust channel, reducing the impact of sudden changes in air pressure on the display screen.

[0033] In some embodiments, there are multiple gaskets, and connecting parts can be set between the multiple gaskets. During assembly, the multiple gaskets and the connecting parts can be assembled as a whole, reducing the difficulty of installation.

[0034] In some embodiments, the middle frame further includes a concave-convex region. The concave-convex region and the adhesive layer may be spaced apart, and the concave-convex region and the gasket may also be spaced apart. For example, a portion of the concave-convex region may be disposed within the first exhaust channel, and a portion of the concave-convex region may also be disposed within the second exhaust channel, so that the thickness of the areas of the middle frame where the adhesive layer and the gasket are disposed is uniform or gradually changes. BRIEF DESCRIPTION OF THE DRAWINGS

[0035] Figure 1 A schematic diagram of the disassembled structure of an electronic device provided in an embodiment of the present application;

[0036] Figure 2 A schematic diagram of the structure of an electronic device provided in an embodiment of the present application;

[0037] Figure 3 A schematic structural diagram of another electronic device provided in an embodiment of the present application;

[0038] Figure 4 is a cross-sectional view of an electronic device;

[0039] Figure 5 It is a structural diagram of a middle frame;

[0040] Figure 6 for Figure 5 A diagram showing a usage state of the middle frame when it is used in an electronic device;

[0041] Figure 7 A cross-sectional view of an electronic device provided in an embodiment of the present application;

[0042] Figure 8 for Figure 7 The usage status diagram of the electronic equipment in the;

[0043] Figure 9 A schematic structural diagram of a middle frame provided in an embodiment of the present application;

[0044] Figure 10 A schematic structural diagram of another middle frame provided in an embodiment of the present application;

[0045] Figure 11 A schematic structural diagram of another middle frame provided in an embodiment of the present application;

[0046] Figure 12 A schematic structural diagram of another middle frame provided in an embodiment of the present application;

[0047] Figure 13 This is a structural diagram of another middle frame;

[0048] Figure 14 Schematic diagram of light and shadow of display screens of electronic devices with middle frames of different structures. DETAILED DESCRIPTION

[0049] In order to make the purpose, technical solutions and advantages of this application clearer, this application will be further described in detail below with reference to the accompanying drawings.

[0050] Hereinafter, the terms "first," "second," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of the technical features being referred to. Thus, a feature identified with "first," "second," etc., may explicitly or implicitly include one or more of the features. In the description of this application, unless otherwise specified, "plurality" means two or more.

[0051] In addition, in this application, directional terms such as "upper" and "lower" are defined relative to the orientation of the components in the drawings. It should be understood that these directional terms are relative concepts. They are used for relative description and clarification, and they can change accordingly according to changes in the orientation of the components in the drawings.

[0052] The present application provides an electronic device. The electronic device may be a tablet computer, a mobile phone, an e-reader, a remote control, a personal computer (PC), a laptop computer, a personal digital assistant (PDA), an in-vehicle device, an Internet-connected television, a wearable device, a television, or other products with a display interface, as well as smart display wearable products such as smart watches and smart bracelets. The present application does not impose any particular restrictions on the form of the electronic device.

[0053] Exemplarily, the electronic device may be a device with a foldable screen, including but not limited to a foldable mobile phone, a foldable tablet computer, etc.

[0054] For the convenience of description, the following embodiments are all described by taking a mobile phone as an example of an electronic device.

[0055] Figure 1 This is a schematic diagram of the disassembled structure of the electronic device provided in the embodiment of the present application, such as Figure 1 As shown, the electronic device 1 includes a display screen 10 and a housing (or battery cover) 12. A middle frame 11 is located between the display screen 10 and the housing 12.

[0056] The display screen 10 is used to display images.

[0057] The display screen 10, the middle frame 11, and the housing 12 can be arranged in different layers in the thickness direction of the electronic device. These layers can be parallel to each other. The plane in which each layer is located can be called the XY plane, and the direction perpendicular to the XY plane can be called the Z direction. In other words, the display screen 10, the middle frame 11, and the housing 12 can be arranged in layers in the Z direction.

[0058] The display screen 10 can be Figure 1 The flexible printed circuit (FPC) shown passes through the middle frame 11 and is electrically connected to the PCB disposed on the middle frame 11. This allows the PCB to transmit display data to the display screen 10 to control the display screen 10 to display images.

[0059] The middle frame 11 is located between the display screen 10 and the housing 12. The surface of the middle frame 11, facing away from the display screen 10, is used to mount internal components such as the battery, printed circuit board (PCB), camera, and antenna. When the housing 12 and middle frame 11 are closed, these internal components are located between the housing 12 and the middle frame 11.

[0060] The housing 12 is connected to the middle frame 11 to form a cavity for accommodating the PCB, camera, battery and other electronic components, thereby preventing moisture and dust from entering the cavity and affecting the performance of the electronic components.

[0061] The embodiments of this application do not limit the structure of the mobile phone. In some embodiments of this application, such as Figure 2 、 Figure 3 As shown, the mobile phone can be a foldable screen mobile phone, and the above-mentioned display screen 10 includes a flexible display screen 101.

[0062] The flexible display screen 101 may be an active matrix organic light emitting diode (AMOLED) display screen.

[0063] AMOLED displays are self-luminous and do not require a backlight module (BLM). Therefore, when the base substrate of an AMOLED display is made of a flexible resin material, such as polyimide (PI) or polyethylene terephthalate (PET), the AMOLED display can be bendable.

[0064] Figure 2The structure of a dual-screen foldable phone is shown. The phone includes a first housing 12a, a second housing 12b, a flexible display 101, and a hinge mechanism. The flexible display 101 can be continuously covered on the first and second housings 12a, 12b. The first and second housings 12a, 12b are positioned on either side of the hinge mechanism and are connected to the hinge mechanism. The flexible display 101 can also be flattened and closed by the hinge mechanism.

[0065] Figure 3 A structural diagram of a triple-screen foldable phone is shown, and the exemplary foldable phone is a triple-screen foldable phone. The triple-screen foldable phone may include a first housing 12a, a second housing 12b, and a third housing 12c, as well as a flexible display 101. The flexible display 101 may continuously cover the first housing 12a, the second housing 12b, and the third housing 12c. The foldable phone may also include a first hinge mechanism and a second hinge mechanism.

[0066] The first shell 12a and the second shell 12b are arranged on both sides of the first rotating shaft mechanism and are respectively connected to the first rotating shaft mechanism. The first rotating shaft mechanism can move so that the first shell 12a and the second shell 12b are folded or unfolded relative to each other, thereby realizing the flattening and closing of the flexible display screen 101 arranged on the first shell 12a and the second shell 12b.

[0067] The second shell 12b and the third shell 12c are arranged on both sides of the second rotating shaft mechanism and are respectively connected to the second rotating shaft mechanism. The second rotating shaft mechanism can move so that the second shell 12b and the third shell 12c are relatively folded or relatively unfolded, thereby realizing the flattening and closing of the flexible display screen 101 arranged on the second shell 12b and the third shell 12c.

[0068] A foldable electronic device can unfold into a flattened state, fold into a closed state, or be in an intermediate state between the flattened and closed states. A foldable electronic device has at least two states: a flattened state and a closed state. In some cases, it may further include a third state, an intermediate state between the flattened and closed states. Intermediate states are not unique; they can be any one or more states between the flattened and closed states.

[0069] above Figure 2 and Figure 3 The examples are dual-screen and triple-screen foldable electronic devices. The foldable electronic devices involved in the embodiments of the present application can also be devices with more screens, such as four-screen foldable devices, five-screen foldable devices, etc.

[0070] The following explanation is given using a dual-screen foldable electronic device as an example. Figure 4This is a cross-sectional view of an electronic device provided in an embodiment of the present application. Figure 4 As shown, the middle frame 11 includes a first middle frame 111, a second middle frame 112, and a hinge mechanism 13 located between the first and second middle frames 111, 112. The first and second middle frames 111, 112 can rotate along the axis of the hinge mechanism 13, thereby driving the display screen 10 to fold or unfold.

[0071] For example, when the angle α between the first middle frame 111 and the second middle frame 112 is 0°, the flexible display screen 101 is in a folded state.

[0072] Alternatively, when the angle α between the first middle frame 111 and the second middle frame 112 increases to 180°, the flexible display screen 101 is in an unfolded state.

[0073] The flexible display screen 101 includes a first non-bending area opposite to the first middle frame 111 , a second non-bending area opposite to the second middle frame 112 , and a bending area opposite to the hinge mechanism 13 .

[0074] In some embodiments, as Figure 5 As shown, the middle frame is provided with adhesive 20. The first middle frame 111 includes: a first adhesive region, which is provided with a first adhesive 201, and the second middle frame 112 includes: a second adhesive region, which is provided with a second adhesive 202. The first middle frame 111 is connected to the first non-bending region via the first adhesive 201, and the second middle frame 112 is connected to the second non-bending region via the second adhesive 202.

[0075] The adhesive area of ​​the middle frame can be used to set the adhesive. Combined with the description of the adhesive area above, it can be seen that the shape of the adhesive can be square, circular, elliptical, or diamond-shaped, and this application does not make specific restrictions on this.

[0076] The adhesive area in this embodiment can be of any shape, as long as the area can be enclosed into a closed area, it can be understood as a frame-shaped adhesive area. For example, the shape of the adhesive area can be square, circular, elliptical, diamond-shaped, etc., and this application does not make specific restrictions on this.

[0077] After the middle frame is attached to the inner surface of the display screen, a closed air layer is formed by the side walls of the adhesive, the display screen, and the inner surface of the middle frame. Due to the adhesiveness of the adhesive, the air layer between the display screen and the middle frame bonded by the adhesive is sealed, so that the pressure in the closed air layer remains unchanged. However, if Figure 6As shown, when the external air pressure changes suddenly, for example, when the user uses the electronic device in scenarios such as underwater or rapidly climbing the altitude, the electronic device is easily affected by the sudden change in air pressure and produces irreversible deformation. The area of ​​the display screen 10 where the back glue 20 is not set is concave downward, and a mold imprint is generated on the display screen 10, and the back glue imprint is obvious, affecting the viewing experience.

[0078] To this end, the present application provides an improved electronic device. The electronic device has a gasket provided on the inner side of the adhesive backing, and both the adhesive backing and the gasket are provided with an exhaust channel, which connects the air layer to the outside through the exhaust channel, thereby reducing the impact of sudden changes in air pressure on the display screen. The gasket can be used to support the display screen and achieve a smooth transition between light and shadow.

[0079] Figure 7 This is a schematic diagram of the structure of a middle frame provided in an embodiment of the present application. Figure 7 As shown, the electronic device includes: a display screen 10 and a middle frame 11 that are stacked, and a backing glue 20 and a gasket 30 that are arranged between the display screen 10 and the middle frame 11.

[0080] The middle frame 11 includes a first middle frame 111 , a second middle frame 112 , and a hinge mechanism 13 located between the first middle frame 111 and the second middle frame 112 .

[0081] The adhesive 20 is used to connect the display screen 10 and the middle frame 11 , and the gasket 30 is provided on the middle frame 11 . The gasket 30 is used to support the display screen 10 .

[0082] The spacer 30 is spaced apart from the adhesive backing 20. The spacer 30 can be positioned between adhesive backings 20 that are spaced farther apart. In some embodiments, the spacer 30 is positioned on a side of the adhesive backing 20 that is away from the edge of the electronic device. The height of the spacer 30 is lower than that of the adhesive backing 20, so that the height from the adhesive backing 20 to the spacer 30 gradually changes.

[0083] like Figure 8 As shown, when the external air pressure changes suddenly, for example, when the user uses the electronic device underwater or when the altitude rises rapidly, the display screen is easily affected by the sudden change in air pressure and bends downward. The gasket 30 can support the display screen so that the display screen can transition smoothly.

[0084] In some embodiments, the adhesive backing 20 includes an exhaust channel (51, 53), the gasket 30 includes an exhaust channel (52, 54), and the exhaust channels (51, 53) are connected to the exhaust channels (52, 54), wherein the exhaust channels 51 and the exhaust channels 53 can be referred to as first exhaust channels, and the exhaust channels 52 and the exhaust channels 54 can be referred to as second exhaust channels.

[0085] For example, Figure 9As shown, the adhesive 20 includes: a first adhesive 201 and a second adhesive 202. The first adhesive 201 is set on the first middle frame 111, and the second adhesive 202 is set on the second middle frame 112. The first adhesive 201 is provided with an exhaust channel 51, and the second adhesive 202 is provided with an exhaust channel 53.

[0086] The gasket 30 includes: a first gasket 301 and a second gasket 302 . The first gasket 301 is disposed on the first middle frame 111 , and the second gasket 302 is disposed on the second middle frame 112 . The first gasket 301 is provided with an exhaust channel 52 , and the second gasket 302 is provided with an exhaust channel 54 .

[0087] The exhaust passage 51 is connected to the exhaust passage 52, and the exhaust passage 53 is connected to the exhaust passage 54.

[0088] After the middle frame 11 is attached to the inner surface of the display screen, the sidewalls of the adhesive backing 20, the display screen 10, and the inner surface of the middle frame 11 form a first region, and the gasket 30 is disposed in the first region. When the external air pressure suddenly changes, the display screen 10 bends downward under the influence of the air pressure and comes into contact with the gasket 30. The inner sidewall of the gasket 30, the display screen 10, and the inner surface of the middle frame 11 form a second region. The outer sidewall of the gasket 30, the inner sidewall of the adhesive backing 20, the display screen 10, and the inner surface of the middle frame 11 form a third region. The outer sidewall of the adhesive backing 20, the display screen 10, and the inner surface of the middle frame 11 form a fourth region. The fourth region can communicate with the outside. The third region can communicate with the fourth region via the first exhaust channel, and the second region can communicate with the third region via the second exhaust channel. In this way, the air layer can be connected to the outside through the exhaust channel, reducing the impact of the sudden change in air pressure on the display screen 10.

[0089] Taking the first middle frame 111 as an example, the inner side wall of the first gasket 301, the display screen 10 and the inner surface of the first middle frame 111 are enclosed into a second area, the outer side wall of the first gasket 301, the inner side wall of the first back glue 201, the display screen 10 and the inner surface of the first gasket 301 are enclosed into a third area, and the outer side wall of the first back glue 201, the display screen 10 and the inner surface of the first middle frame 111 are enclosed into a fourth area. The fourth area can be connected to the outside, the third area can be connected to the fourth area through the exhaust channel 51, and the second area can be connected to the third area through the exhaust channel 52. In this way, the air layer can be connected to the outside through the exhaust channel 51 and the exhaust channel 52, thereby reducing the impact of sudden changes in air pressure on the display screen 10.

[0090] In the electronic device provided in the embodiment of the present application, adhesive backing 20 and a gasket 30 are disposed between the display screen 10 and the middle frame 11. The gasket 30 is disposed on the inner side of the adhesive backing 20, and the height gradually decreases from the adhesive backing 20 to the gasket 30. When the display screen 10 is subjected to external force, the gasket 30 can support the display screen 10, allowing the display screen 10 to transition smoothly. In addition, both the gasket 30 and the adhesive backing 20 are provided with exhaust channels, which connect the air layer to the outside through the exhaust channels, thereby reducing the impact of sudden changes in air pressure on the display screen 10.

[0091] The embodiment of the present application does not limit the setting method of the back glue 20. One way to set the back glue 20 can be that the middle frame 11 has its own back glue 20 before leaving the factory, or it can be set during the installation process. The embodiment of the present application does not specifically limit this. As an example, the middle frame 11 comes with double-sided tape before leaving the factory, and it can be used by peeling off the isolation paper before laminating. As another example, before laminating, glue can be applied to the surface of the middle frame 11, or double-sided tape can be set on the surface of the middle frame 11 to use glue or double-sided tape for laminating.

[0092] The embodiment of the present application does not specifically limit the material of the adhesive 20, and can be any adhesive 20 with viscosity. For example, the adhesive 20 can be rubber, or resin adhesive, etc.

[0093] The embodiment of the present application does not limit the setting method of the gasket 30. One setting method of the gasket 30 can be that the middle frame 11 comes with the gasket 30 before leaving the factory, or it can be set during the installation process. The embodiment of the present application does not specifically limit this. As an example, the middle frame 11 comes with the gasket 30 before leaving the factory. As another example, glue can be applied to the surface of the middle frame 11, or double-sided tape can be set on the surface of the middle frame 11, and the gasket 30 can be attached to the glue or double-sided tape.

[0094] The material of the gasket 30 is not specifically limited in the embodiment of the present application, and can be a polyester film (PET film). For example, the gasket 30 can be made of a tough polyester polymer, such as mylar.

[0095] The present embodiment does not limit the number and shape of the adhesive 20 and the gasket 30. In some embodiments, one adhesive 20 and one gasket 30 are provided on a middle frame 11, the adhesive 20 is provided with an exhaust channel, and the gasket 30 is provided with an exhaust channel. The adhesive 20 and the gasket 30 are both frame-shaped, and the adhesive 20 is arranged around the gasket 30.

[0096] For example, Figure 9As shown, the first middle frame 111 is provided with a first adhesive 201 and a first gasket 301 , the first adhesive 201 is provided with an exhaust channel 51 , and the first gasket 301 is provided with an exhaust channel 52 .

[0097] The second middle frame 112 is provided with a second adhesive 202 and a second gasket 302 . The second adhesive 202 is provided with an exhaust channel 53 , and the second gasket 302 is provided with an exhaust channel 54 .

[0098] In some embodiments, there are multiple adhesives 20 and gaskets 30 , and a middle frame 11 is provided with multiple adhesives 20 and multiple gaskets 30 . An exhaust channel is provided between two adjacent adhesives 20 , and an exhaust channel is provided between adjacent gaskets 30 .

[0099] For example, Figure 10 As shown, two adhesive strips are provided on the first middle frame 111 : adhesive strip 2001 and adhesive strip 2002 , and an exhaust channel 51 and an exhaust channel 55 are provided between the adhesive strip 2001 and adhesive strip 2002 .

[0100] Two gaskets are provided on the first middle frame 111 : a gasket 3001 and a gasket 3002 . An exhaust channel 52 and an exhaust channel 56 are provided between the gasket 3001 and the gasket 3002 .

[0101] Two adhesive strips are provided on the second middle frame 112 : adhesive strip 2003 and adhesive strip 2004 . An exhaust channel 53 and an exhaust channel 57 are provided between adhesive strip 2003 and adhesive strip 2004 .

[0102] Two gaskets are provided on the second middle frame 112 : gasket 3003 and gasket 3004 . An exhaust channel 54 and an exhaust channel 58 are provided between gasket 3003 and gasket 3004 .

[0103] In some embodiments, the adhesive backing 20 and the spacer 30 are parallel, for example, Figure 10 As shown, the first part 3001a of the gasket 3001 is parallel to the first part 2001a of the adhesive backing 2001, the second part 3001b of the gasket 3001 is parallel to the second part 2001b of the adhesive backing 2001, and the third part 3001c of the gasket 3001 is parallel to the third part 2001c of the adhesive backing 2001.

[0104] The shapes of the adhesive 20 include: straight line, arc line, broken line, and irregular shape. Figure 11 As shown, the adhesive 2003 is in a straight line shape. Figure 10 As shown, the adhesive 2001 is in the shape of a broken line. Figure 12 As shown, the adhesive backing 2004 is in a broken line shape.

[0105] The embodiments of the present application do not limit the shape of the upper surfaces of the adhesive backing 20 and the gasket 30. In some embodiments, the surface of the adhesive backing 20 away from the middle frame can be a flat surface. In other embodiments, the surface of the adhesive backing 20 away from the middle frame can be an inclined surface. For example, the thickness of the adhesive backing gradually decreases as it moves away from the edge of the electronic device, so that the distance between the upper surface of the adhesive backing and the display screen gradually increases as it moves away from the edge of the electronic device. This can better achieve a height gradient, allowing the display screen to transition smoothly.

[0106] The upper surface of the gasket 30 can be flat or inclined. In some embodiments, the surface of the gasket 30 away from the middle frame can be flat. In other embodiments, the surface of the gasket 30 away from the middle frame can be inclined. For example, the thickness of the adhesive tape gradually decreases away from the edge of the electronic device, so that the distance between the upper surface of the adhesive tape and the display screen gradually increases away from the edge of the electronic device. This can better achieve a height gradient, allowing for a smooth transition of the display screen.

[0107] The shapes of the adhesive 20 and the gasket 30 can be the same or different. In some embodiments, the shapes of the adhesive 20 and the gasket 30 are the same, for example, Figure 10 As shown, the adhesive 2001 is in a broken line shape, and the gasket 3001 is also in a broken line shape. Figure 10 The adhesive backing 20 includes: adhesive backing 2001 and adhesive backing 2002. Both adhesive backing 2001 and adhesive backing 2002 are U-shaped, and the openings of adhesive backing 2001 and adhesive backing 2002 are opposite to each other. Adhesive backing 2001 and adhesive backing 2002 are arranged to form a frame shape, and an exhaust channel and an exhaust channel are provided between adhesive backing 2001 and adhesive backing 2002.

[0108] The gasket 30 includes: a gasket 3001 and a gasket 3002. The gasket 3001 and the gasket 3002 are both U-shaped. The openings of the gasket 3001 and the gasket 3002 are opposite to each other. The gasket 3001 and the gasket 3002 are arranged to form a frame shape. An exhaust channel and an exhaust channel are provided between the gasket 3001 and the gasket 3002.

[0109] In other embodiments, the shapes of the adhesive 20 and the gasket 30 are different.

[0110] In some embodiments of the present application, the gasket 30 adopts a hollow design. Figure 12 As shown, the electronic device further includes: a connecting portion 3003 , which is connected to the middle frame 11 , and is arranged on a side of the supporting portion away from the adhesive 20 , through which the plurality of gaskets 30 are connected.

[0111] For example, Figure 12As shown, a connecting portion 3003 is provided between the gasket 3001 and the gasket 3002 , and the gasket 3001 is connected to the gasket 3002 via the connecting portion 3003 .

[0112] The embodiments of the present application do not limit the arrangement of the gasket 30 and the connecting portion. In some embodiments, the gasket 30 and the connecting portion are integrally formed, and multiple gaskets 30 can be connected by the connecting portion 3003. During assembly, the gasket 30 and the connecting portion 3003 can be assembled as a whole, reducing the difficulty of installation.

[0113] The embodiments of the present application do not limit the location and number of the gasket and adhesive exhaust channels. In some embodiments, the number of gasket and adhesive exhaust channels is the same, and the gasket and adhesive exhaust channels are aligned one-to-one. This can better connect the interior of the electronic device with the external environment and reduce the impact of sudden changes in air pressure on the display screen 10.

[0114] For example, Figure 10 As shown, two exhaust channels are provided between adhesive backing 2001 and adhesive backing 2002: exhaust channel 51 and exhaust channel 55. Two exhaust channels are provided between gasket 3001 and gasket 3002: exhaust channel 52 and exhaust channel 56. Exhaust channel 51 and exhaust channel 52 are opposite to each other, and exhaust channel 55 and exhaust channel 56 are opposite to each other.

[0115] Of course, in other embodiments, the number of the gasket exhaust channels and the gasket exhaust channels of the adhesive can be different. The gasket exhaust channels and the gasket exhaust channels of the adhesive can also be staggered, which all fall within the scope of protection of this application.

[0116] like Figure 12 As shown, four adhesive strips are provided on the middle frame 111: adhesive strip 2001, adhesive strip 2002, adhesive strip 2003 and adhesive strip 2004, and an exhaust channel is provided between each two adjacent adhesive strips.

[0117] Two gaskets are provided on the middle frame 111: gasket 3001 and gasket 3002, and gasket 3001 and gasket 3002 are connected by a connecting portion 3003. Two exhaust channels are provided between gasket 3001 and gasket 3002. The number of exhaust channels is different from that of the adhesive backing 20, and the position is different.

[0118] In some embodiments, as Figure 12 As shown, the middle frame includes a concave-convex area 50, and the thickness of the concave-convex area 50 has a step difference. The stiffness of the middle frame is prone to sudden changes in the concave-convex area 50, making the concave-convex area 50 uneven in its ability to resist deformation during manufacturing and user use. Placing the adhesive backing 20 on the area with sudden changes in stiffness is prone to mold imprinting. For example, Figure 11As shown, the concave-convex area 50 is provided with at least one of: a screw hole 503 , a reinforcing rib 502 , and a laser engraving structure 501 .

[0119] In order to reduce mold imprint, the concave-convex area 50 and the adhesive backing 20 can be spaced apart. For example, the concave-convex area can be set in the first exhaust band, and the adhesive backing 20 can be set at the middle frame 11 position with balanced stiffness, which is conducive to reducing mold imprint.

[0120] In some embodiments of the present application, the thickness of the area where the adhesive 20 is provided on the middle frame 11 is uniform. In this way, the stiffness of the area where the adhesive 20 is provided on the middle frame 11 can be made uniform everywhere, and the ability to resist deformation during manufacturing and user use is balanced, which can reduce mold marks.

[0121] In other embodiments of the present application, the thickness of the area where the adhesive 20 is provided on the middle frame 11 is gradually changed. In this way, the stiffness of the area where the adhesive 20 is provided on the middle frame 11 can be uniformly changed, and the deformation resistance during manufacturing and user use is more balanced, which can reduce mold marks.

[0122] In other embodiments, the concave-convex area 50 and the gasket 30 may be spaced apart. For example, the concave-convex area may be set in the second exhaust band. For example, the gasket 20 may be set at a position on the middle frame 11 with balanced stiffness, which is beneficial to reduce mold imprinting.

[0123] In some embodiments of the present application, the thickness of the area where the gasket 30 is provided on the middle frame 11 is uniform. In this way, the stiffness of the area where the gasket 30 is provided on the middle frame 11 can be made uniform everywhere, and the ability to resist deformation during manufacturing and user use is balanced, which can reduce mold marks.

[0124] In other embodiments of the present application, the thickness of the area where the gasket 30 is provided on the middle frame 11 is gradually changed. In this way, the stiffness of the area where the gasket 30 is provided on the middle frame 11 can be uniformly changed, the deformation resistance during manufacturing and user use is more balanced, and mold marks can be reduced.

[0125] The embodiment of the present application does not limit the size of the adhesive backing 20 and the spacer 30. In some embodiments, the distance between the spacer 30 and the adhesive backing 20 ranges from 3 to 7 mm. For example, the distance between the adhesive backing 20 and the spacer 30 is 5 mm.

[0126] The height difference between the adhesive backing 20 and the spacer 30 is between 30 μm and 70 μm. For example, the height difference between the adhesive backing 20 and the spacer 30 is 50 μm.

[0127] The embodiment of the present application does not limit the exhaust channel and the size of the exhaust channel. In some embodiments, the width of the exhaust channel is greater than 5 mm, and / or the width of the exhaust channel is greater than 5 mm.

[0128] The following combination Figure 12 The structure of a middle frame of this application is described. Figure 12 As shown, taking the first middle frame 111 as an example, the first middle frame 111 is provided with a backing adhesive 20 and a gasket 30 .

[0129] The adhesive 20 includes adhesive 2001, adhesive 2002, adhesive 2003 and adhesive 2004. An air vent is provided between each two adjacent adhesives. The width of the air vent of the adhesive 20 is, for example, 0.5 mm.

[0130] Gasket 30 includes gasket 3001 and gasket 3002, which are connected by a connecting portion 3003. Two exhaust channels are provided between gasket 3001 and gasket 3002. The number and location of these exhaust channels differ from those in adhesive backing 20. The spacing between gasket 30 and adhesive backing 20 is 5 mm. The height of gasket 30 is lower than that of adhesive backing 20, with a height difference of 50 μm between gasket 30 and adhesive backing 20. The width of the exhaust channels in gasket 30 is, for example, 0.5 mm. Gasket 30 is made of PET film.

[0131] The gasket 30 is, for example, hollowed out. For example, the first middle frame 111 is further provided with: a connecting portion 3003, the connecting portion 3003 is connected to the middle frame 11, the connecting portion 3003 is provided on the side of the support portion away from the adhesive 20, and a plurality of the gaskets 30 are connected through the connecting portion 3003. Figure 12 As shown, a connecting portion 3003 is provided between the gasket 3001 and the gasket 3002 , and the gasket 3001 is connected to the gasket 3002 via the connecting portion 3003 .

[0132] The first middle frame 111 further includes a concave-convex area 50, which is spaced apart from the adhesive 20 and partially located in the exhaust channel of the adhesive 20. The area of ​​the first middle frame 111 where the adhesive 20 is located has a uniform stiffness transition.

[0133] Figure 13 This is a structural diagram of another middle frame. Figure 13 As shown, taking the first middle frame 111 as an example, the first middle frame 111 is provided with a backing adhesive 20, and the shape of the backing adhesive 20 is similar to that of the first middle frame 111. Figure 12 The shape of the adhesive shown is the same. Figure 13 The adhesive backing 20 shown is not provided with an exhaust channel, and Figure 13 As shown, no gasket is provided on the first middle frame 111 .

[0134] The first middle frame 111 further includes a concave-convex area 50 , which partially overlaps with the adhesive backing 20 . In the area of ​​the first middle frame 111 where the adhesive backing 20 is provided, the area overlapping with the concave-convex area has an uneven stiffness transition.

[0135] Respectively Figure 12 The first middle frame 111 shown and Figure 13 The electronic device with the first middle frame 111 shown was subjected to a light and shadow test, with the test results shown in Table 1. The light and shadow test can involve projecting alternating light and dark stripes of light onto the electronic device. In areas with a relatively flat display, the stripes of light have a relatively small slope, resulting in a smooth transition between light and shadow. In areas with a relatively poorly flat display, the stripes of light have a relatively large slope, resulting in a curved light and shadow.

[0136] Table 1

[0137] Figure 5 Figure 11 Slope / first derivative of light and shadow (maximum value) 0.868 0.685 Angle of light and shadow (standard deviation) 0.055 0.055 Second derivative of light and shadow (maximum value) 0.015 0.005 Second derivative of light and shadow (standard deviation) 0.001 0.001 Index 10.25 5.25 grade B mark A standard

[0138] use Figure 11 In the electronic device with the first middle frame 111 shown, the light and shadow slope of the display screen 10 is reduced, achieving a smooth transition of light and shadow, reducing the air pressure mold printing in the large area of ​​the display screen, making the offset printing shallower, and significantly improving the flatness and refinement of the large area of ​​the display screen.

[0139] Figure 14 The a in the formula is Figure 12 The light and shadow effect diagram of the electronic device of the first middle frame 111 is shown. Figure 14 b in the formula is Figure 13 The light and shadow effect diagram of the electronic device of the first middle frame 111 is shown, combined with Figure 14 a and Figure 14 In b, it can be seen that the Figure 11 In the electronic device with the first middle frame 111 shown, the light and shadow transition on the display screen 10 is smoother and the surface flatness is higher.

[0140] An embodiment of the present application provides an electronic device, wherein a back glue and a gasket are provided between the display screen and the middle frame of the electronic device, the back glue is used to connect the display screen and the middle frame, the gasket is arranged on the middle frame, and the gasket is used to support the display screen; the gasket and the back glue are spaced apart, the gasket is arranged on the side of the back glue away from the edge of the electronic device, the back glue includes a first exhaust channel, the gasket includes a second exhaust channel, the first exhaust channel and the second exhaust channel are connected, and the height of the gasket is lower than the height of the back glue. Thus, a back glue and a gasket are provided between the display screen and the middle frame, the gasket is provided on the inner side of the back glue, and the height from the back glue to the gasket slowly decreases. When the display screen is subjected to external force, the gasket can support the display screen, so that the display screen can transition smoothly. In addition, an exhaust channel is provided on both the gasket and the back glue, and the air layer can be connected to the outside through the exhaust channel, reducing the impact of sudden changes in air pressure on the display screen.

[0141] In some embodiments, there are multiple gaskets, and connecting parts can be set between the multiple gaskets. During assembly, the multiple gaskets and the connecting parts can be assembled as a whole, reducing the difficulty of installation.

[0142] In some embodiments, the middle frame further includes a concave-convex region. The concave-convex region and the adhesive layer may be spaced apart, and the concave-convex region and the gasket may also be spaced apart. For example, a portion of the concave-convex region may be disposed within the first exhaust channel, and a portion of the concave-convex region may also be disposed within the second exhaust channel, so that the thickness of the areas of the middle frame where the adhesive layer and the gasket are disposed is uniform or gradually changes.

[0143] The above is only a specific embodiment of the present application, but the scope of protection of this application is not limited to this. Any changes or substitutions within the technical scope disclosed in this application should be included in the scope of protection of this application. Therefore, the scope of protection of this application should be based on the scope of protection of the claims.

Claims

1. An electronic device, characterized in that: include: A display screen and a middle frame that are stacked together, and adhesive and a gasket disposed between the display screen and the middle frame; The adhesive is used to connect the display screen and the middle frame, the gasket is provided on the middle frame, and the gasket is used to support the display screen; The gasket and the back glue are spaced apart, the gasket is arranged on the side of the back glue away from the edge of the electronic device, the back glue includes a first exhaust channel, the gasket includes a second exhaust channel, the first exhaust channel and the second exhaust channel are connected, and the height of the gasket is lower than the height of the back glue.

2. The electronic device according to claim 1, wherein The adhesive backing and the gasket are both arranged in a frame shape, and the adhesive backing is arranged around the gasket.

3. The electronic device according to claim 1, wherein The thickness of the back adhesive gradually decreases in a direction away from the edge of the electronic device.

4. The electronic device according to claim 1, wherein: The thickness of the gasket gradually decreases in a direction away from the adhesive.

5. The electronic device according to claim 4, characterized in that There are multiple gaskets, and a second exhaust channel is provided between adjacent gaskets. The electronic device also includes: a connecting part, which is connected to the middle frame and is arranged on a side of the gasket away from the back glue. Multiple gaskets are connected through the connecting part.

6. The electronic device according to claim 5, characterized in that The gasket and the connecting portion are integrally formed.

7. The electronic device according to claim 1, wherein: The first exhaust channel and the second exhaust channel are arranged opposite to each other.

8. The electronic device according to claim 1, wherein: The middle frame includes a concave-convex area, and the concave-convex area and the adhesive backing are spaced apart.

9. The electronic device according to claim 8, wherein: A portion of the concave-convex area is disposed within the first exhaust passage.

10. The electronic device according to claim 9, characterized in that The concave-convex area is provided with at least one of a screw hole, a reinforcing rib, and a laser engraving structure.

11. The electronic device according to any one of claims 1 to 10, characterized in that: The area of ​​the middle frame where the adhesive is set has a uniform thickness.

12. The electronic device according to any one of claims 1 to 10, characterized in that: The thickness of the area of ​​the middle frame where the adhesive is disposed changes gradually.

13. The electronic device according to any one of claims 1 to 10, characterized in that: The adhesive backing is parallel to the gasket.

14. The electronic device according to any one of claims 1 to 10, characterized in that: The backing glue and the gasket have the same shape.

15. The electronic device according to any one of claims 1 to 10, characterized in that: The shapes of the adhesive include: straight line, arc line and broken line.

16. The electronic device according to any one of claims 1 to 10, characterized in that: The material of the gasket includes: polyester film.

17. The electronic device according to any one of claims 1 to 10, characterized in that: The distance between the gasket and the adhesive is in the range of 3-7 mm.

18. The electronic device according to any one of claims 1 to 10, characterized in that: The height difference between the backing adhesive and the gasket is between 30-70 μm.

19. The electronic device according to any one of claims 1 to 10, characterized in that: The width of the first exhaust channel is greater than 5 mm, and / or the width of the second exhaust channel is greater than 5 mm.

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