Electronic device

Abstract

The invention relates to an electronic device which comprises a middle frame, a display screen, first gum and colloid, the middle frame comprises a frame and a middle plate, the frame is connected to the edge of the middle plate, the frame and the middle plate define an installation space, the display screen is installed in the installation space and comprises a screen body and a sealing body, and the sealing body wraps the peripheral side of the screen body. The first gum comprises a plurality of rubber strips, the rubber strips are arranged along the inner side edge of the frame, the colloid is connected to the adjacent rubber strips in a sealed mode, and the colloid and the rubber strips jointly seal the gap between the sealing body and the middle plate. According to the electronic equipment, the peripheral side of the screen main body is wrapped by the sealing body, and the gap between the sealing body and the middle plate is sealed by the colloid and the plurality of adhesive tapes without requiring that the sealing surfaces of all positions between the sealing body and the middle plate are positioned on the same plane, so that the sealing performance between the display screen and the middle frame is ensured; and the space waste is reduced, and the space waste is reduced while the sealing performance is considered.

Description

Technical Field

[0001] The present application relates to the technical field of electronic equipment, and in particular to electronic equipment. Background Art

[0002] With the development of electronic devices such as smart phones and tablet computers, users have higher requirements for the waterproof and dustproof performance of electronic devices.

[0003] In the related art, the display screen and the middle frame of the electronic device are usually sealed by combining the first adhesive with the peripheral glue point method, and the position where the first adhesive and the glue point are connected is sealed by glue filling. This electronic device requires that the surface of the display screen and the middle frame corresponding to the connection adhesive is flat, that is, the sealing surface of each position between the sealing body and the middle plate is in the same plane, so as to ensure the sealing effect of the adhesive between the sealing body and the middle plate.

[0004] However, the related art requires that the sealing surfaces of the back glue be in the same plane, which will increase the stacking thickness of the display screen and the middle frame, resulting in a waste of space, which is not conducive to the thinning of the electronic device. Summary of the invention

[0005] The present application provides an electronic device to solve the technical problem of how to balance sealing performance and reduce space waste.

[0006] The present application provides an electronic device, including:

[0007] The middle frame includes a frame and a middle plate, wherein the frame is connected to the edge of the middle plate, and the frame and the middle plate are enclosed to form an installation space;

[0008] A display screen is installed in the installation space, the display screen comprises a screen body and a sealing body, and the sealing body is coated on the periphery of the screen body;

[0009] A first adhesive backing, comprising a plurality of adhesive strips, wherein the plurality of adhesive strips are arranged along the inner edge of the frame;

[0010] The colloid is sealingly connected to the adjacently arranged rubber strips, and the colloid and the plurality of rubber strips jointly seal the gap between the sealing body and the middle plate.

[0011] In one embodiment, adjacent rubber strips are spaced apart on the middle plate to form gaps, and the gaps are filled with the colloid;

[0012] Alternatively, adjacent rubber strips are spaced apart on the middle plate to form gaps, and the gaps are located on a side of the colloid that faces away from the middle of the middle plate.

[0013] In one embodiment, the rubber strip includes a first sealing surface and a second sealing surface arranged opposite to each other, the first sealing surface is sealingly fitted with the middle plate, the second sealing surface is sealingly fitted with the sealing body, and the first sealing surface and the second sealing surface are parallel to each other.

[0014] In one embodiment, at least one of the following technical solutions is also included:

[0015] At least two of the colloids have different thicknesses;

[0016] Alternatively, at least a portion of the surface where the colloid is connected to the middle plate is not coplanar with the first sealing surface;

[0017] Alternatively, at least a portion of a surface where the colloid is connected to the sealing body is not coplanar with the second sealing surface.

[0018] In one of the embodiments, adjacent adhesive strips are spaced apart on the middle plate to form adhesive dispensing portions, and the adhesive is disposed on the adhesive dispensing portions.

[0019] In one of the embodiments, a surface of at least one of the middle plate and the sealing body at a position corresponding to the glue dispensing portion is non-planar.

[0020] In one embodiment, the colloid includes a first adhesive material and a second adhesive material, the first adhesive material is bonded to the middle plate, and the first adhesive material and the sealing body are spaced to form a first gap, and the second adhesive material fills the first gap;

[0021] The modulus of the second adhesive material is smaller than the modulus of the first adhesive material, and / or the bonding strength of the second adhesive material is smaller than the bonding strength of the first adhesive material.

[0022] In one of the embodiments, the screen body includes a cover plate, a display panel and a substrate, the cover plate is arranged on the light-emitting side of the display panel, and the edge of the cover plate extends out of the display panel, the substrate is arranged on the side of the display panel facing away from the cover plate, the sealing body includes a connected side portion and a supporting portion, the side portion is sealed and connected to the inner surface of the cover plate and covers the display panel and the substrate along the circumference of the screen body, the supporting portion is connected to the side of the substrate facing away from the display panel, and the supporting portion is connected to the middle plate through the rubber strip.

[0023] In one embodiment, the second adhesive material is bonded to the substrate.

[0024] In one embodiment, the electronic device further includes a second adhesive backing, the second adhesive backing is adhered to a side of the substrate facing away from the display panel, and the second adhesive backing is spaced from the support portion to form a second gap, and the second adhesive fills the second gap.

[0025] In one embodiment, the first adhesive material and the adhesive strip form a third gap, and the second adhesive material fills the third gap;

[0026] And / or, the second adhesive completely covers the first adhesive material.

[0027] In one embodiment, the modulus of the second adhesive material is 1.5 MPa to 3 MPa, and the modulus of the first adhesive material is 22 MPa to 27 MPa.

[0028] In one embodiment, the middle plate includes a supporting surface and a raised portion protruding from the supporting surface, a plurality of the rubber strips are connected to the supporting surface, and the glue dispensing portion includes a first glue dispensing portion, which is located between the raised portion and at least one of the rubber strips.

[0029] In one embodiment, the sealing body is provided with a step portion, the middle plate is provided with a joint portion, the joint portion is exposed from the rubber strip, the glue dispensing portion includes a second glue dispensing portion, the second glue dispensing portion is located between the rubber strips on both sides of the middle plate corresponding to the joint portion, and the second glue dispensing portion is provided with the colloid so that the step portion is bonded to the joint portion.

[0030] In one embodiment, the middle plate includes a flat plate portion and a mounting portion for mounting the functional device. In the thickness direction of the middle plate, at least a portion of the surface of the mounting portion protrudes from the flat plate portion. The rubber strip is attached to the flat plate portion. The colloid is surrounded by a portion of the rubber strip on the periphery of the mounting portion to form a closed sealing ring. The closed sealing ring is sealed between the display screen and the middle plate and encloses a sealed cavity. Part of the structure of the functional device is accommodated in the sealed cavity.

[0031] The electronic device of the present application utilizes a sealing body to cover the circumference of the screen body, and the first back glue includes a plurality of adhesive strips. The colloid is sealed and connected to the adjacently arranged adhesive strips, and the colloid and the plurality of adhesive strips jointly seal the gap between the sealing body and the middle plate. Thus, the colloid and the plurality of adhesive strips together seal the gap between the sealing body and the middle plate, thereby ensuring the sealing performance between the display screen and the middle frame. Under this structural setting, the plurality of adhesive strips can be adapted to seal different positions of the sealing body and the middle plate, and the colloid can be used to seal different positions of the gap between the sealing body and the middle plate, so that the sealing structure composed of the colloid and the plurality of adhesive strips is not limited to the sealing connection surfaces between the sealing body and the middle plate being at the same height, so that there is no need to require the sealing surfaces at various positions between the sealing body and the middle plate to be in the same plane, thereby reducing space waste and facilitating the thinning of the electronic device. BRIEF DESCRIPTION OF THE DRAWINGS

[0032] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0033] Figure 1 A three-dimensional schematic diagram of an electronic device provided in one embodiment.

[0034] Figure 2 A middle frame and display screen edge of an electronic device provided in an embodiment Figure 1 Schematic cross-sectional view of line II.

[0035] Figure 3 An electronic device provided in an embodiment corresponds to Figure 2 A magnified view of the local structure at the circled position.

[0036] Figure 4 The present invention is a schematic structural diagram of a plurality of adhesive strips on a middle plate of a middle frame in an electronic device according to an embodiment.

[0037] Figure 5 A schematic diagram of the arrangement of multiple adhesive strips in an electronic device provided in one embodiment.

[0038] Figure 6 Another embodiment provides an electronic device corresponding to Figure 2 A magnified view of the local structure at the circled position.

[0039] Figure 7 A schematic rear view of a local structure of a display screen in an electronic device provided in one embodiment.

[0040] Figure 8Another embodiment provides an electronic device corresponding to Figure 2 A magnified view of the local structure at the circled position.

[0041] Fig. 9 Another embodiment provides an electronic device corresponding to Figure 2 A magnified view of the local structure at the circled position.

[0042] Fig.10 FIG. 4 is a schematic structural diagram of an electronic device according to an embodiment.

[0043] Reference numerals:

[0044] 100. electronic device; 10. middle frame; 101. installation space; 102. glue dispensing part; 11. frame; 12. middle plate; 121. flat plate part; 122. installation part; 20. display screen; 21. screen body; 211. cover plate; 212. display panel; 2121. light emitting surface; 213. substrate; 214. foam layer; 22. sealing body; 221. side part; 222. supporting part; 30. first adhesive; 31. adhesive strip; 311. first sealing surface; 312. second sealing surface; 32. notch; 40. colloid; 41. first adhesive material; 42. second adhesive material; 43. third adhesive material; 50. second adhesive. DETAILED DESCRIPTION

[0045] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, the specific embodiments of the present invention are described in detail below in conjunction with the accompanying drawings. In the following description, many specific details are set forth to facilitate a full understanding of the present invention. However, the present invention can be implemented in many other ways different from those described herein, and those skilled in the art can make similar improvements without violating the connotation of the present invention, so the present invention is not limited by the specific embodiments disclosed below.

[0046] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In the description of the present invention, the meaning of "plurality" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined.

[0047] In the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0048] In the present invention, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may mean that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. Moreover, a first feature being "above", "above" or "above" a second feature may mean that the first feature is directly above or obliquely above the second feature, or simply means that the first feature is higher in level than the second feature. A first feature being "below", "below" or "below" a second feature may mean that the first feature is directly below or obliquely below the second feature, or simply means that the first feature is lower in level than the second feature.

[0049] It should be noted that when an element is referred to as being "fixed to" or "disposed on" another element, it may be directly on the other element or there may be a central element. When an element is considered to be "connected to" another element, it may be directly connected to the other element or there may be a central element at the same time. The terms "vertical", "horizontal", "upper", "lower", "left", "right" and similar expressions used herein are for illustrative purposes only and are not intended to be the only implementation method.

[0050] See also Figure 1 As shown, an electronic device 100 provided in an embodiment of the present application may be a mobile phone or a bracelet, or a tablet computer, which is not limited here.

[0051] Combination Figure 2 and Figure 3 As shown, the electronic device 100 includes a middle frame 10, a display screen 20, a first adhesive backing 30 and an adhesive 40. The middle frame 10 includes a frame 11 and a middle plate 12. The frame 11 is connected to the edge of the middle plate 12, and the frame 11 and the middle plate 12 enclose an installation space 101. The display screen 20 is installed in the installation space 101, and the first adhesive backing 30 and the adhesive 40 are both arranged between the display screen 20 and the middle plate 12 to achieve a sealing effect.

[0052] The display screen 20 includes a screen body 21 and a sealing body 22. The sealing body 22 is coated on the periphery of the screen body 21, so that the periphery of the screen body 21 is sealed by the sealing body 22. The first adhesive 30 is sealed and bonded between the sealing body 22 and the middle plate 12.

[0053] The inventors have found that the thickness of the structural layer of the display screen 20 facing the middle plate 12 is not consistent, and the thickness of the middle plate 12 may vary at different locations due to the installation of other components. In other words, the size of the gap between the display screen 20 and the middle plate 12 that needs to be sealed may be different at different locations. If an integral adhesive is used for sealing, it is difficult to take into account the sealing effect at various locations. Although setting the surface that needs to be sealed between the display screen 20 and the middle plate 12 as a flat surface can ensure that the sealing surface of the adhesive is in the same plane to obtain good sealing performance, this approach will increase the stacking thickness of the display screen 20 and the middle frame 10, resulting in a waste of space, which is not conducive to the thinning of the electronic device 100.

[0054] In this regard, in the embodiments of the present application, combined with Figures 4 to 5 As shown, the first back glue 30 includes a plurality of adhesive strips 31, and the plurality of adhesive strips 31 are arranged along the inner edge of the frame 11. The colloid 40 is sealed and connected to the adjacently arranged adhesive strips 31, and the colloid 40 and the plurality of adhesive strips 31 jointly seal the gap between the sealing body 22 and the middle plate 12. Thus, the colloid 40 and the plurality of adhesive strips 31 together seal the gap between the sealing body 22 and the middle plate 12, thereby ensuring the sealing performance between the display screen 20 and the middle frame 10. Under this structural setting, the plurality of adhesive strips 31 can adapt to the sealing of different positions of the sealing body 22 and the middle plate 12, and the colloid 40 can be used to seal different positions of the gap between the sealing body 22 and the middle plate 12. Subsequently, the sealing structure composed of the colloid 40 and the plurality of adhesive strips 31 is not limited to the sealing connection surfaces between the sealing body 22 and the middle plate 12 being at the same height, so that the middle plate 12 and the sealing body 22 can be set according to their respective thickness requirements, reducing space waste, thereby facilitating the thinning of the electronic device 100. Therefore, the electronic device 100 of the present application not only ensures sealing performance but also reduces space waste.

[0055] The middle frame 10, as a structural member supporting the display screen 20, can be made of metal, glass or ceramic, which is not limited here. In some embodiments, the middle frame 10 can also be formed by integrally molding plastic and metal, for example, hot melt plastic is injected into the molded metal component, and after the hot melt plastic is solidified, it is integrally molded with the metal component.

[0056] Recombination Figure 3As shown, in some embodiments, the screen body 21 includes a cover plate 211, a display panel 212 and a substrate 213. The cover plate 211 is arranged on the light-emitting side of the display panel 212, so as to protect the light-emitting side of the display panel 212 by using the cover plate 211. The edge of the cover plate 211 extends out of the display panel 212, the substrate 213 is arranged on the side of the display panel 212 facing away from the cover plate 211, and the sealing body 22 includes a side portion 221 and a supporting portion 222 connected to each other. The side portion 221 is sealed and connected to the inner surface of the cover plate 211 and covers the display panel 212 and the substrate 213 along the peripheral side of the screen body 21, the supporting portion 222 is connected to the side of the substrate 213 facing away from the display panel 212, and the supporting portion 222 is connected to the middle plate 12 through the adhesive strip 31.

[0057] When the display screen 20 is assembled on the middle frame 10, the edge of the cover plate 211 abuts against the inner wall of the frame 11, so that the appearance surface of the electronic device 100 presents a seamless or micro-gap visual effect between the cover plate 211 and the frame 11, which is conducive to obtaining a good overall aesthetic appearance.

[0058] In some embodiments, the cover plate 211 and the middle frame 10 may be connected by thermosetting adhesive. Thermosetting adhesive connection can ensure the stability of the connection between the two, and the assembly process is simple to reduce costs.

[0059] In some embodiments, the display panel 212 can be attached to the inner side of the cover plate 211, and the edge of the display panel 212 is bent in 2.5D or 3D along the cover plate 211, so that the edge portion of the display panel 212 presents a curved display effect, so as to smoothly transition to the edge of the middle frame 10, thereby obtaining a narrow border 11 visual effect.

[0060] The material of the cover plate 211 can be glass or transparent plastic, which is not limited here.

[0061] The display panel 212 has a light emitting surface 2121 and a back surface opposite to the light emitting surface 2121. The light emitting surface 2121 faces the outside of the electronic device 100. The side of the display panel 212 where the light emitting surface 2121 is located is the light emitting side of the display panel 212.

[0062] In some embodiments, the display panel 212 uses an OLED display panel 212, for example, an AMOLED (Active Matrix Organic Light Emitting Diode) screen or a Super AMOLED (Super Active Matrix Organic Light Emitting Diode) screen or a Super AMOLED Plus (Super Active Matrix Organic Light Emitting Diode Plus, Magic Screen) screen, which will not be described in detail here. This display panel 212 has the advantages of being lighter, thinner, higher brightness, lower power consumption, faster response, higher clarity, better flexibility, and higher luminous efficiency.

[0063] It should be noted that the display panel 212 may also be other types of display panels 212. For example, an LCD (Liquid Crystal Display) screen may be used to display information, and the LCD screen may be a TFT (Thin Film Transistor) screen, an IPS (In-Plane Switching) screen, or an SLCD (Splice Liquid Crystal Display) screen, etc. The type of the display panel 212 is not limited here.

[0064] The substrate 213 may be a copper foil, which may play a role in signal shielding to prevent interference between signals of other components in the electronic device 100 and signals in the display panel 212 .

[0065] The structure of the screen body 21 is not limited here. In some embodiments, the screen body 21 may also include other structures. For example, Figure 3 As shown, the screen body 21 includes a foam layer 214 , which is disposed between the display panel 212 and the substrate 213 . The foam layer 214 can have a buffering effect, thereby improving the impact resistance of the display panel 212 .

[0066] Continue to combine Figure 4 and Figure 5 As shown, in some embodiments, adjacent rubber strips 31 are spaced apart to form gaps 32 on the middle plate 12, and the gaps 32 are filled with colloid 40. Thus, by filling the gaps 32 with colloid 40, a sealed connection between the rubber strips 31 forming the gaps 32 is achieved.

[0067] In some embodiments, adjacent adhesive strips 31 are spaced apart to form gaps 32 on the middle plate 12, and the gaps 32 are located on the side of the colloid 40 facing away from the middle of the middle plate 12. It can be understood that since the colloid 40 and the adhesive strips 31 together seal the display screen 20 and the middle frame 10, the colloid 40 and the adhesive strips 31 are basically arranged at the edge positions corresponding to the display screen 20 and the middle frame 10, therefore, the gaps 32 are located on the side of the middle plate 12 of the colloid 40 facing away from the middle plate 12, which means that the gaps 32 are located outside the space enclosed by the colloid 40 and the plurality of adhesive strips 31, so that the position of the gaps 32 will not affect the sealing of the space enclosed by the colloid 40 and the plurality of adhesive strips 31, and then this structural setting also meets the sealing requirements between the sealing body 22 and the middle plate 12.

[0068] It should be noted that, in this embodiment, since the gaps 32 are formed on the middle plate 12 correspondingly between the adjacent rubber strips 31, that is, the setting positions of the multiple rubber strips 31 between the middle plate 12 and the sealing body 22 avoid the gaps 32, therefore, the multiple rubber strips 31 do not have to be limited to whether the middle plate 12 and the sealing body 22 are kept flat at the corresponding gap 32 positions and other positions. Then, for the uneven positions on the sealing body 22 or the middle plate 12, the multiple rubber strips 31 can be set to avoid the position to form the gap 32. Since the colloid 40 can seal and connect the adjacently arranged rubber strips 31, the gap 32 will not affect the sealing effect between the sealing body 22 and the middle plate 12. It can be seen that this technical means of using the colloid 40 and the multiple rubber strips 31 to seal the gap between the sealing body 22 and the middle plate 12 can take into account the sealing performance while avoiding the increase in the stacking thickness of the display screen 20 and the middle frame 10 due to the sealing surface of the back glue being in the same plane in the related art.

[0069] Further, in some embodiments, in combination Figure 3As shown, the rubber strip 31 includes a first sealing surface 311 and a second sealing surface 312 that are arranged opposite to each other. The first sealing surface 311 and the second sealing surface 312 are parallel to each other, that is, the first sealing surface 311 and the second sealing surface 312 are both planes and parallel to each other. In this embodiment, the first sealing surface 311 is sealed and fitted with the middle plate 12, and the second sealing surface 312 is sealed and fitted with the sealing body 22. Based on this, the sealing thickness of the rubber strip 31 between the sealing body 22 and the middle plate 12 is consistent, and the surface of the sealing body 22 and the middle plate 12 to which the colloid 40 is bonded is a plane. In other words, when the rubber strip 31 is used to seal the sealing body 22 and the middle plate 12, the colloid 40 can be bonded to the position where the relative surfaces of the sealing body 22 and the middle plate 12 are planes. With this structural arrangement, the rubber strip 31 is easily sealed and fitted between the sealing body 22 and the middle plate 12. The colloid 40 can seal adjacent rubber strips 31 to seal the sealing body 22 and the middle plate 12 at positions not sealed by the rubber strips 31 , so that the colloid 40 and the plurality of rubber strips 31 together have a good sealing effect on the sealing body 22 and the middle plate 12 .

[0070] In some embodiments, at least two colloids 40 have different thicknesses to meet the need to seal gaps of different sizes between the sealing body 22 and the middle plate 12 .

[0071] The colloid 40 can be formed by dispensing glue at the position corresponding to the notch 32 of the middle plate 12, so as to meet the sealing needs of the irregular thickness position between the sealing body 22 and the middle plate 12. Therefore, the shape of the colloid 40 is related to the shape of the gap between the sealing body 22 and the middle plate 12 corresponding to the notch 32 position and needing to be sealed. For example, in some embodiments, at least a portion of the surface of the colloid 40 connected to the middle plate 12 is not coplanar with the first sealing surface 311. In some embodiments, at least a portion of the surface of the colloid 40 connected to the sealing body 22 is not coplanar with the second sealing surface 312. In the above embodiment, the colloid 40 can be used to seal the gap with uneven thickness between the sealing body 22 and the middle plate 12, so as to form a good sealing effect between the sealing body 22 and the middle plate 12 together with the multiple adhesive strips 31. At the same time, the multiple adhesive strips 31 can avoid these gaps with uneven thickness, avoiding the problem in the related art that the sealing surface of the adhesive backing needs to be on the same plane, which leads to an increase in the stacking thickness of the display screen 20 and the middle frame 10, reducing space waste, and then facilitating the thinning of the electronic device 100.

[0072] Combination Figure 4As shown, the adjacent rubber strips 31 are spaced apart on the middle plate 12 to form a glue spot 102, and the colloid 40 is disposed at the glue spot 102. In this embodiment, the colloid 40 is disposed through the glue spot 102, so that the colloid 40 seals the gap between the rubber strips 31 located on both sides of the glue spot 102, thereby avoiding the situation where the gap between the rubber strips 31 is poorly sealed at the corresponding position of the glue spot 102, so that the colloid 40 and the rubber strips 31 together play a good sealing effect between the display screen 20 and the middle frame 10.

[0073] The number of the adhesive strips 31 can be 2 or more. The number of the adhesive dispensing unit 102 and the adhesive 40 can be more than one, as long as the gap between the adhesive strips 31 can be sealed. For example, Figure 3 and Figure 4 As shown, the first back adhesive 30 includes three adhesive strips 31, which are sequentially arranged at intervals along the edge of the middle plate 12, thereby forming three gaps 32. The adhesive 40 includes three pieces to seal the three gaps 32.

[0074] In this embodiment, at least one of the middle plate 12 and the sealing body 22 has a non-planar surface at the position corresponding to the glue dispensing portion 102. In other words, the colloid 40 can meet the sealing needs at the non-planar position, so that the colloid 40 and the plurality of adhesive strips 31 can achieve good sealing effects at different positions between the display screen 20 and the middle frame 10.

[0075] Combination Figure 6 As shown, in some embodiments, the colloid 40 includes a first adhesive material 41 and a second adhesive material 42. The first adhesive material 41 is bonded to the middle plate 12, and the first adhesive material 41 and the sealing body 22 are spaced to form a first gap. The second adhesive material 42 fills the first gap. The modulus of the second adhesive material 42 is smaller than the modulus of the first adhesive material 41, and / or the bonding strength of the second adhesive material 42 is smaller than the bonding strength of the first adhesive material 41.

[0076] It should be noted that when the modulus of the second adhesive 42 is smaller than that of the first adhesive 41 , the second adhesive 42 is softer than the first adhesive 41 . Therefore, after the second adhesive 42 fills the first gap, the connection between the second adhesive 42 and the sealant 22 will not be too rigid, thereby reducing the probability of damaging the display screen 20 .

[0077] When the bonding strength of the second adhesive material 42 is less than that of the first adhesive material 41, the viscosity of the connection between the second adhesive material 42 and one side of the display screen 20 is less than the viscosity between the second adhesive material 42 and the middle plate 12, thereby facilitating the removal of the display screen 20 from the middle frame 10 for maintenance and reducing the probability of damage to the sealant 22 during the removal process. Accordingly, since the bonding strength of the first adhesive material 41 is greater than that of the second adhesive material 42, it can be ensured that the first adhesive material 41 plays an effect of strengthening the connection stability between structures on the middle plate 12.

[0078] In some embodiments, the modulus of the second adhesive material 42 is 1.5Mpa to 3Mpa, for example, 1.5Mpa, 1.8Mpa, 2.2Mpa, 2.5Mpa or 3Mpa. The modulus of the first adhesive material 41 is 22Mpa to 27Mpa, for example, 22Mpa, 25Mpa or 27Mpa. Under this setting, a sufficiently large connection strength can be generated for the position where a high connection strength is required, and at the same time, the force applied when the display screen 20 is removed from the middle frame 10 can be reduced, so that the display screen 20 is not easily damaged when it is removed.

[0079] The modulus of the first adhesive material 41 and the modulus of the second adhesive material 42 are not limited here.

[0080] In the embodiment where the screen body 21 includes a cover plate 211 , a display panel 212 and a substrate 213 , the second adhesive material 42 is bonded to the substrate 213 .

[0081] Combination Figure 6 and Figure 7 As shown, the electronic device 100 further includes a second adhesive 50, which is bonded to the side of the substrate 213 facing away from the display panel 212, and the second adhesive 50 is spaced apart from the support portion 222 to form a second gap. The second adhesive material 42 fills the second gap, so that the second adhesive material 42 has a good sealing effect between the second adhesive 50 and the support portion 222. It can be understood that the second adhesive material 42 is sealed and connected to the side of the screen body 21 facing away from the light emitting surface 2121, thereby improving the sealing effect.

[0082] It should be noted that the second adhesive material 42 can be bonded to the middle plate 12. Figure 8 As shown, in some embodiments, the second adhesive material 42 may not be bonded to the middle plate 12 . Specifically, the first adhesive material 41 is in sealing contact with the sealing body 22 , and the second adhesive material 42 is bonded between the first adhesive body 40 and the display screen 20 .

[0083] It should be noted that the filling and sealing positions of the first adhesive material 41 and the second adhesive material 42 between the display screen 20 and the middle frame 10 are not limited to those in the above embodiment.

[0084] For example, combined with Fig. 9 As shown, the colloid 40 includes a third adhesive material 43, and the first adhesive material 41 and the display screen 20 are connected by the third adhesive material 43. In this way, the first adhesive material 41, the second adhesive material 42 and the third adhesive material 43 together constitute the colloid 40 to seal the intervals between the adhesive strips 31.

[0085] Combine again Figure 4 and Figure 6As shown, in some embodiments, the second adhesive 50 completely covers the first adhesive material 41, so that the first adhesive material 41 is isolated from the substrate 213, thereby preventing the first adhesive material 41 from being bonded to the substrate 213, so that when the display screen 20 is detached from the middle frame 10, the substrate 213 is not easily peeled off from the display panel 212, thereby preventing the display screen 20 from being damaged. It should be noted here that the second adhesive 50 is a glue layer bonded to the side where the back of the display panel 212 is located. The second adhesive 50 can cover the first adhesive material 41 when the display screen 20 is assembled to the middle frame 10, so as to achieve the bonding of the second adhesive 50 and the first adhesive material 41.

[0086] The adhesive force between the second adhesive 50 and the screen body is smaller than the adhesive force between the second adhesive 50 and the first adhesive 41 . Therefore, when the display screen 20 is disassembled from the middle frame 10 , the screen body is easier to peel off from the second adhesive 50 than the second adhesive 50 is peeled off from the middle plate 12 . In this way, the screen body is subjected to less force during peeling and is not easily damaged.

[0087] Continue to combine Figure 6 As shown, in some embodiments, the first adhesive material 41 and the adhesive strip 31 are spaced apart to form a third gap. The second adhesive material 42 fills the third gap, so that the second adhesive material 42 bonds the display screen 20 and the middle plate 12 .

[0088] It should be noted that the colloid 40 can be used to seal the special connection positions or uneven areas between the middle plate 12 and the sealing body 22 to make up for the fact that the rubber strip 31 cannot seal well at these positions. In other words, the rubber strip 31 is suitable for sealing between the flat surfaces of the middle plate 12 and the sealing body 22. For the positions where the rubber strip 31 cannot seal, the colloid 40 can be used to achieve sealing, so that the colloid 40 and the rubber strip 31 can jointly seal the gap between the sealing body 22 and the middle frame 10.

[0089] For ease of understanding, the structure of the electronic device 100 is schematically further described below, but the structure of the display device is not limited thereto.

[0090] For example, combined with Figure 4As shown, in some embodiments, the middle plate 12 includes a flat plate portion 121 and a mounting portion 122 for mounting functional devices. The mounting portion 122 includes but is not limited to an annular protrusion or a buckle. In the thickness direction of the middle plate 12, at least part of the surface of the mounting portion 122 protrudes from the flat plate portion 121, and the adhesive strip 31 is attached to the flat plate portion 121. The colloid 40 is surrounded by part of the adhesive strip 31 on the circumference of the mounting portion 122 to form a closed sealing ring. The closed sealing ring is sealed and connected between the display screen 20 and the middle plate 12, and a sealed cavity is formed. Part of the structure of the functional device is accommodated in the sealed cavity, thereby improving space utilization and facilitating the thinning of the electronic device 100. In this embodiment, the functional device includes but is not limited to a camera module, a fingerprint module or a flash.

[0091] For another example, in some embodiments, the middle plate 12 includes a supporting surface and a raised portion protruding from the supporting surface, a plurality of rubber strips 31 are connected to the supporting surface, and the glue dispensing portion 102 includes a first glue dispensing portion 102 , and the first glue dispensing portion 102 is located between the raised portion and at least one rubber strip 31 .

[0092] For another example, in some embodiments, the sealing body 22 is provided with a step portion, the middle plate 12 is provided with a joint portion, the joint portion is exposed from the rubber strip 31, the glue dot portion 102 includes a second glue dot portion 102, the second glue dot portion 102 is located between the rubber strips 31 on both sides of the joint portion corresponding to the middle plate 12, and the second glue dot portion 102 is provided with a glue 40, so that the step portion and the joint portion are bonded.

[0093] refer to Fig.10 , Fig.10 The electronic device 100 is a schematic diagram of the structure of the electronic device 100 provided in an embodiment of the present application. The electronic device 100 may include a radio frequency (RF) circuit 501, a memory 502 including one or more computer-readable storage media, an input unit 503, a display unit 504, a sensor 505, an audio circuit 506, a wireless fidelity (WiFi) module 507, a processor 508 including one or more processing cores, and a power supply 509. Those skilled in the art can understand that Fig.10 The structure of the electronic device 100 shown in the figure does not constitute a limitation on the electronic device 100, and may include more or less components than shown in the figure, or combine certain components, or arrange the components differently.

[0094] The radio frequency circuit 501 can be used to send and receive information, or receive and send signals during a call. In particular, after receiving the downlink information of the base station, it is handed over to one or more processors 508 for processing; in addition, the data related to the uplink is sent to the base station. Usually, the radio frequency circuit 501 includes but is not limited to an antenna, at least one amplifier, a tuner, one or more oscillators, a subscriber identity module (SIM) card, a transceiver, a coupler, a low noise amplifier (LNA), a duplexer, etc. In addition, the radio frequency circuit 501 can also communicate with the network and other devices through wireless communication. The wireless communication can use any communication standard or protocol, including but not limited to the global system for mobile communications (GSM), the general packet radio service (GPRS), the code division multiple access (CDMA), the wideband code division multiple access (WCDMA), the long term evolution (LTE), email, the short message service (SMS), etc.

[0095] The memory 502 can be used to store applications and data. The applications stored in the memory 502 contain executable codes. The applications can be composed of various functional modules. The processor 508 executes various functional applications and data processing by running the applications stored in the memory 502. The memory 502 can mainly include a program storage area and a data storage area, wherein the program storage area can store an operating system, an application required for at least one function (such as a sound playback function, an image playback function, etc.), etc.; the data storage area can store data created according to the use of the electronic device 100 (such as audio data, a phone book, etc.), etc. In addition, the memory 502 can include a high-speed random access memory, and can also include a non-volatile memory, such as at least one disk storage device, a flash memory device, or other volatile solid-state storage devices. Accordingly, the memory 502 can also include a memory controller to provide the processor 508 and the input unit 503 with access to the memory 502.

[0096] The input unit 503 can be used to receive input digital, character information or user feature information (such as fingerprints), and generate keyboard, mouse, joystick, optical or trackball signal input related to user settings and function control. Specifically, in a specific embodiment, the input unit 503 may include a touch-sensitive surface and other input devices. The touch-sensitive surface, also known as a touch display screen or a touch pad, can collect user touch operations on or near it (such as operations performed by users using fingers, styluses, or any other suitable objects or accessories on or near the touch-sensitive surface), and drive corresponding connection devices according to a pre-set program. Optionally, the touch-sensitive surface may include a touch detection device and a touch controller. Among them, the touch detection device detects the user's touch orientation, detects the signal brought by the touch operation, and transmits the signal to the touch controller; the touch controller receives the touch information from the touch detection device, converts it into touch point coordinates, and then sends it to the processor 508, and can receive and execute commands sent by the processor 508.

[0097] The display unit 504 may be used to display information input by the user or provided to the user and various graphical user interfaces of the electronic device 100, which may be composed of graphics, text, icons, videos, and any combination thereof. The display unit 504 may include the above-mentioned liquid crystal panel.

[0098] Furthermore, the touch-sensitive surface may cover a liquid crystal panel. When the touch-sensitive surface detects a touch operation on or near it, it is transmitted to the processor 508 to determine the type of touch event. The processor 508 then provides corresponding visual output on the liquid crystal panel according to the type of touch event.

[0099] Although in Fig.10 In the embodiment, the touch sensitive surface and the liquid crystal panel are used as two independent components to realize input and output functions, but in some embodiments, the touch sensitive surface and the liquid crystal panel can be integrated to realize input and output functions. It can be understood that the screen can include an input unit 503 and a display unit 504.

[0100] The electronic device 100 may also include at least one sensor 505, such as a light sensor, a motion sensor, and other sensors. Specifically, the light sensor may include an ambient light sensor and a proximity sensor, wherein the ambient light sensor may adjust the brightness of the liquid crystal panel according to the brightness of the ambient light, and the proximity sensor may turn off the liquid crystal panel and / or backlight when the electronic device 100 is moved to the ear. As a type of motion sensor, the gravity acceleration sensor can detect the magnitude of acceleration in each direction (generally three axes), and can detect the magnitude and direction of gravity when stationary. It can be used for applications that identify the posture of the mobile phone (such as horizontal and vertical screen switching, related games, magnetometer posture calibration), vibration recognition related functions (such as pedometer, tapping), etc.; as for other sensors such as gyroscopes, barometers, hygrometers, thermometers, infrared sensors, etc. that can also be configured in the electronic device 100, they will not be repeated here.

[0101] The audio circuit 506 can provide an audio interface between the user and the electronic device 100 through a speaker and a microphone. The audio circuit 506 can convert the received audio data into an electrical signal, transmit it to the speaker, and convert it into a sound signal for output; on the other hand, the microphone converts the collected sound signal into an electrical signal, which is received by the audio circuit 506 and converted into audio data, and then the audio data is output to the processor 508 for processing, and then sent to another electronic device 100 through the radio frequency circuit 501, or the audio data is output to the memory 502 for further processing. The audio circuit 506 may also include an earphone socket to provide communication between an external earphone and the electronic device 100.

[0102] Wireless Fidelity (WiFi) is a short-range wireless transmission technology. The electronic device 100 can help users send and receive emails, browse web pages, and access streaming media through the wireless fidelity module 507, which provides users with wireless broadband Internet access. Fig.10 The wireless fidelity module 507 is shown, but it is understandable that it is not a necessary component of the electronic device 100 and can be omitted as needed without changing the essence of the invention.

[0103] The processor 508 is the control center of the electronic device 100. It uses various interfaces and lines to connect various parts of the entire electronic device 100. By running or executing applications stored in the memory 502 and calling data stored in the memory 502, it executes various functions of the electronic device 100 and processes data, thereby monitoring the electronic device 100 as a whole. Optionally, the processor 508 may include one or more processing cores; preferably, the processor 508 may integrate an application processor and a modem processor, wherein the application processor mainly processes the operating system, user interface, and application programs, and the modem processor mainly processes wireless communications. It is understandable that the above-mentioned modem processor may not be integrated into the processor 508.

[0104] The electronic device 100 also includes a power supply 509 for supplying power to various components. Preferably, the power supply 509 can be logically connected to the processor 508 through a power management system, so that the power management system can manage charging, discharging, and power consumption management. The power supply 509 can also include one or more DC or AC power supplies, recharging systems, power failure detection circuits, power converters or inverters, power status indicators, and other arbitrary components.

[0105] although Fig.10 Not shown, the electronic device 100 may also include a Bluetooth module, etc., which will not be described in detail here. In specific implementation, the above modules can be implemented as independent entities, or can be arbitrarily combined and implemented as the same or several entities. The specific implementation of the above modules can refer to the previous method embodiment, which will not be described in detail here.

[0106] The technical features of the above embodiments may be combined arbitrarily. To make the description concise, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0107] The above embodiments only express several implementation methods of the present application, and the descriptions thereof are relatively specific and detailed, but they cannot be understood as limiting the scope of the patent application. It should be pointed out that, for a person of ordinary skill in the art, several variations and improvements can be made without departing from the inventive concept of the present application, and these all belong to the protection scope of the present application. Therefore, the protection scope of the patent application shall be subject to the attached claims.

Claims

1. An electronic device, characterized in that: include: The middle frame includes a frame and a middle plate, wherein the frame is connected to the edge of the middle plate, and the frame and the middle plate are enclosed to form an installation space; A display screen is installed in the installation space, the display screen comprises a screen body and a sealing body, and the sealing body is coated on the periphery of the screen body; A first adhesive backing, comprising a plurality of adhesive strips, wherein the plurality of adhesive strips are arranged along the inner edge of the frame; The colloid is sealingly connected to the adjacently arranged rubber strips, and the colloid and the plurality of rubber strips jointly seal the gap between the sealing body and the middle plate.

2. The electronic device according to claim 1, characterized in that: Adjacent rubber strips are spaced apart on the middle plate to form gaps, and the gaps are filled with the colloid; Alternatively, adjacent rubber strips are spaced apart on the middle plate to form gaps, and the gaps are located on a side of the colloid that faces away from the middle of the middle plate.

3. The electronic device according to claim 1 or 2, characterized in that: The rubber strip comprises a first sealing surface and a second sealing surface which are arranged opposite to each other, the first sealing surface is sealingly fitted with the middle plate, the second sealing surface is sealingly fitted with the sealing body, and the first sealing surface and the second sealing surface are parallel to each other.

4. The electronic device according to claim 3, characterized in that: Also includes at least one of the following technical solutions: At least two of the colloids have different thicknesses; Alternatively, at least a portion of the surface where the colloid is connected to the middle plate is not coplanar with the first sealing surface; Alternatively, at least a portion of a surface where the colloid is connected to the sealing body is not coplanar with the second sealing surface.

5. The electronic device according to claim 1, characterized in that: Adjacent adhesive strips are spaced apart on the middle plate to form adhesive dispensing portions, and the adhesive is arranged on the adhesive dispensing portions.

6. The electronic device according to claim 5, characterized in that: A surface of at least one of the middle plate and the sealing body at a position corresponding to the glue dispensing portion is non-planar.

7. The electronic device according to claim 5 or 6, characterized in that: The colloid comprises a first adhesive material and a second adhesive material, the first adhesive material is bonded to the middle plate, and the first adhesive material and the sealing body are spaced to form a first gap, and the second adhesive material fills the first gap; The modulus of the second adhesive material is smaller than the modulus of the first adhesive material, and / or the bonding strength of the second adhesive material is smaller than the bonding strength of the first adhesive material.

8. The electronic device according to claim 7, characterized in that: The screen body includes a cover plate, a display panel and a substrate, the cover plate is arranged on the light-emitting side of the display panel, and the edge of the cover plate extends out of the display panel, the substrate is arranged on the side of the display panel facing away from the cover plate, the sealing body includes a connected side portion and a supporting portion, the side portion is sealed and connected to the inner surface of the cover plate and covers the display panel and the substrate along the circumference of the screen body, the supporting portion is connected to the side of the substrate facing away from the display panel, and the supporting portion is connected to the middle plate through the rubber strip.

9. The electronic device according to claim 8, characterized in that: The second adhesive material is bonded to the substrate.

10. The electronic device according to claim 9, characterized in that: The electronic device further comprises a second adhesive backing, the second adhesive backing is adhered to a side of the substrate facing away from the display panel, and the second adhesive backing is spaced from the support portion to form a second gap, and the second adhesive fills the second gap.

11. The electronic device according to claim 10, characterized in that: A third gap is formed between the first adhesive material and the adhesive strip, and the second adhesive material fills the third gap; And / or, the second adhesive completely covers the first adhesive material.

12. The electronic device according to claim 7, characterized in that: The modulus of the second adhesive material is 1.5Mpa to 3Mpa, and the modulus of the first adhesive material is 22Mpa to 27Mpa.

13. The electronic device according to claim 5 or 6, characterized in that: The middle plate includes a supporting surface and a raised portion protruding from the supporting surface, a plurality of the rubber strips are connected to the supporting surface, and the glue dispensing portion includes a first glue dispensing portion, which is located between the raised portion and at least one of the rubber strips.

14. The electronic device according to claim 5 or 6, characterized in that: The sealing body is provided with a step portion, the middle plate is provided with a joint portion, the joint portion is exposed from the rubber strip, the glue dispensing portion includes a second glue dispensing portion, the second glue dispensing portion is located between the rubber strips on both sides of the middle plate corresponding to the joint portion, and the second glue dispensing portion is provided with the colloid so that the step portion is bonded to the joint portion.

15. The electronic device according to claim 1, characterized in that: The middle plate includes a flat plate portion and a mounting portion for mounting the functional device. In the thickness direction of the middle plate, at least a portion of the surface of the mounting portion protrudes from the flat plate portion. The rubber strip is attached to the flat plate portion. The colloid is surrounded by a portion of the rubber strip on the periphery of the mounting portion to form a closed sealing ring. The closed sealing ring is sealed between the display screen and the middle plate and encloses a sealed cavity. Part of the structure of the functional device is accommodated in the sealed cavity.

Images