Electronic equipment and insulating upper cover

Abstract

An electronic device and an insulating upper cover relate to the technical field of electronic device electrostatic protection, and comprise an insulating cover plate of a display module, an insulating upper cover, an edge covering the insulating cover plate, and a first gap between the edge of the insulating cover plate and the insulating upper cover; at least part of the grounding piece is located on the non-display side of the display module; the electrostatic protection structure comprises a first conductive part and a second conductive part, the resistivity of the second conductive part is larger than that of the first conductive part, at least part of the first conductive part is arranged in the first gap, the first conductive part and the second conductive part are arranged in an insulated and spaced mode, and the second conductive part is electrically connected with the grounding part or electrically connected with the grounding part. The first conductive piece is electrically connected with the second conductive piece, and the second conductive piece and the grounding piece are arranged in an insulated and spaced mode. According to the invention, the conductive member is constrained, so that the failure risk of the display module caused by secondary discharge can be reduced under the condition that the antenna performance is improved.

Description

Technical Field

[0001] The present application relates to the technical field of electrostatic protection for electronic equipment, and in particular to an electronic device and an insulating upper cover. Background Art

[0002] Some display modules of electronic devices include flexible circuit boards, whose bending areas may be exposed flexible wiring layers. There are thousands of wirings on the flexible wiring layer that are associated with display driver chips and thin-film transistors. Therefore, the bending areas of flexible circuit boards are very susceptible to electrical influences. A direct hit by static electricity of the KV level can burn the chips and wiring, resulting in display function abnormalities such as a black screen or a distorted screen.

[0003] When using electronic devices such as mobile phones, friction and other actions will generate electrostatic discharge (ESD) on the surface of the electronic device. The ESD energy will enter the space between the frame and the display module through the gap between the plastic shell and the display module. At this time, the bending area of ​​the display module is completely exposed to the direct impact range of the ESD energy, which can easily cause damage to the bending area of ​​the display module and cause problems such as soft failure of the display module. Summary of the Invention

[0004] The present application provides an electronic device and an insulating upper cover, which can reduce the failure risk of a display module caused by secondary discharge while improving antenna performance by constraining conductive parts.

[0005] In a first aspect, the present application provides an electronic device, comprising: an insulating cover plate of a display module;

[0006] an insulating upper cover, which is arranged on the edge of the insulating cover plate, and a first gap is formed between the edge of the insulating cover plate and the insulating upper cover;

[0007] a grounding member, at least partially located on a non-display side of the display module;

[0008] An electrostatic protection structure includes a first conductive member and a second conductive member, the resistivity of the second conductive member is greater than the resistivity of the first conductive member, and the first conductive member is at least partially arranged in the first gap, wherein an insulating space is set between the first conductive member and the second conductive member, and the second conductive member is electrically connected to the grounding member, or the first conductive member and the second conductive member are electrically connected, and an insulating space is set between the second conductive member and the grounding member.

[0009] The embodiment of the present application limits the second conductive part to be made of a conductive material with a high resistivity, which can be a conductive material with a resistivity at least greater than that of the first conductive part. By setting the second gap, the second conductive part and the grounding part such as the conductive middle frame will not be electrically connected at a lower voltage, reducing the current generated by the grounding part due to antenna radiation energy (this current does not include the current generated when the second conductive part releases static electricity transmitted from the first gap to the grounding part) entering the second conductive part, which can slow down the metal loss of the first conductive part and the second conductive part, effectively reduce the impact of the conductive part on the antenna, and improve the performance of the antenna. In addition, when the second conductive part with a larger resistivity releases static electricity to the grounding part, a larger loop impedance can be formed, reducing the high-frequency component in the secondary discharge process and reducing the risk of soft failure. The embodiment of the present application prevents soft failure and other problems in electronic equipment while ensuring that the antenna has better Over-the-Air Technology (OTA) performance.

[0010] In one possible implementation, the resistivity of the second conductive member is greater than 0.00001Ωm. The second conductive member with a larger resistivity can generate a relatively small current when releasing static electricity to the grounding member, thereby reducing the high-frequency component in the secondary discharge process, and can reduce the metal loss of the second conductive member to a certain extent, thereby reducing the risk of ESD soft failure.

[0011] In a possible implementation, the material of the second conductive member includes at least one of graphite, carbon fiber, and silver paste, so as to prepare a second conductive member with a relatively large resistivity.

[0012] In one possible implementation, the resistivity of the first conductive member is less than 0.000001Ωm. The resistivity of the first conductive member is relatively small, and it can better absorb the ESD charge existing in the first gap and transfer it to the grounding member through the first conductive member and the second conductive member for grounding.

[0013] In one possible implementation, the insulating spacing between the second conductive member and the grounding member includes: a second gap between the second conductive member and the grounding member. By setting the second gap, an insulating gap can be formed between the second conductive member and the grounding member, and the insulating medium can be air filled in the gap. A secondary discharge structure is formed between the second conductive member and the grounding member through the second gap. The secondary discharge releases static electricity. The provision of the second conductive member will effectively reduce the impact of the conductive member on the antenna and improve the performance of the antenna. On the premise of ensuring that the antenna has better Over-the-Air Technology (OTA) performance, ESD soft failure and other problems in electronic equipment are prevented.

[0014] In one possible implementation, the insulating spacing between the second conductive member and the grounding member includes: an insulating member disposed between the second conductive member and the grounding member; when the voltage is low, the insulating member insulates the second conductive member and the grounding member; when the voltage increases to a certain level, the insulating member can be broken down, and the insulating member can electrically connect the second conductive member and the grounding member. In this solution, to ensure that electrostatic charge does not discharge into the flexure before and after breaking through the first insulating member, causing display malfunction, both the insulating member breakdown threshold voltage and the voltage from the second conductive member to the conductive middle frame ground plane must be less than N times the breakdown voltage between the second conductive member and the metal lead in the flexure, where N is an adjustment factor that can be between 1 / 3 and 1.

[0015] In one possible implementation, the resistivity of the insulating member is greater than 1000KΩm to form a low-voltage insulation and high-voltage breakdown structure. When the potential difference formed by the charge collected between the second conductive member and the grounding member reaches a large value, the ESD charge is released in a secondary discharge manner.

[0016] In a possible implementation, the material of the insulating member includes at least one of metal oxide, insulating glue, and non-linear conductive glue, so as to prepare an insulating member with relatively large resistivity.

[0017] In one possible implementation, the display module includes a flexible circuit board having a bending region, and the first conductive member is disposed on an inner side surface of the insulating cover, the inner side surface being the side surface of the insulating cover facing the bending region. The first conductive member is disposed on the inner side surface and can absorb electrostatic charge in the first gap. The first conductive member is disposed on the inner side surface of the insulating cover, and a certain distance is separated from the bending region. Electrostatic charge absorbed by the first conductive member is preferentially transferred to the second conductive member and the grounding member for grounding, rather than being transferred to the bending region, thereby protecting the bending region from the effects of electrostatic charge.

[0018] In one possible implementation, along the edge extension direction of the insulating cover plate, the length of the first conductive member is greater than or equal to the length of the bending zone, and the static electricity collected in the first gap can be adsorbed by the first conductive member as much as possible, and there will be no vacant area (referring to the space where the first conductive member is not set) that allows static electricity to be transferred to the bending zone, so as to prevent the bending zone from being affected by static electricity and causing soft failure and other faults as much as possible.

[0019] In one possible implementation, the width of the first conductive member is greater than or equal to 0.5 mm. This allows the first conductive member to be partially disposed within the first gap between the display module and the insulating upper cover, while the remaining portion extends from the first gap and is electrically connected to or insulated from the second conductive member near the side frame. Furthermore, the first conductive member may be a metal layer disposed on the inner side surface. The relatively large width allows the first conductive member to better adhere to the inner side surface and better absorb electrostatic charge in the first gap.

[0020] In one possible implementation, the second conductive member is disposed on the inner side surface, extending along the edge of the insulating cover plate, and has a length greater than or equal to 0.5 mm. By limiting the length of the second conductive member, the second conductive member can be better fitted to the inner side surface and better contacted with the silver paste, thereby improving the stability of the electrical connection.

[0021] In one possible implementation, the display module includes a flexible circuit board, wherein the flexible circuit board has a bending area, and the spacing between the bending area and the conductive structure is less than or equal to 5 mm, so that secondary discharge such as electrical breakdown is not likely to occur between the conductive structure and the bending area. Even if an insulating gap is set between the first conductive member and the second conductive member, and / or an insulating gap is set between the second conductive member and the conductive middle frame, secondary discharge occurs between the first conductive member and the second conductive member with the insulating gap, and secondary discharge occurs between the second conductive member and the conductive middle frame with the insulating gap, secondary discharge will not occur between the second conductive member and the bending area, and secondary discharge will not occur between the first conductive member and the bending area.

[0022] In a possible implementation, the number of the first conductive members is at least two, the number of the second conductive members is greater than or equal to the number of the first conductive members, and each first conductive member and at least one second conductive member are electrically connected or arranged with an insulated interval.

[0023] In one possible implementation, the number of the second conductive members is at least two, and the at least two second conductive members are arranged at intervals along the edge extension direction of the insulating cover plate. The resistivity of the at least two second conductive members is greater than the resistivity of the first conductive member. A larger number of second conductive members can better transfer the electrostatic charge adsorbed by the first conductive member to the grounding member for grounding.

[0024] In one possible implementation, the at least two first conductive members are spaced apart along the edge extension direction of the insulating cover plate, and the spacing distance between two adjacent first conductive members is less than 2 mm, so as to avoid the situation where the first conductive member cannot effectively pick up the electrostatic charge generated outside the electronic device when the electronic device is in use due to the gap being too large, thereby causing static electricity to directly enter the insulating upper cover and the conductive middle frame through the fourth gap to form a cavity structure, resulting in abnormal display function.

[0025] In one possible implementation, at least one of the first conductive member and the second conductive member is fitted on the inner wall of the insulating upper cover, the inner wall surface of the insulating upper cover provides an attachment position for the first conductive member and the second conductive member, and the first conductive member and the second conductive member are arranged on the inner wall surface of the insulating upper cover and will not be electrically connected to the bending area of ​​the display module. The first conductive member and the second conductive member transfer the charge of the first gap to the grounding member for grounding to prevent the bending area from being affected by static electricity.

[0026] In one possible implementation, the outer wall of at least one of the first and second conductive members is flush with the inner wall of the insulating cover. This flushness of the first conductive member and the inner wall prevents increased risk of interference with the display module due to the thickness of the first conductive member. The flushness of the second conductive member and the inner wall increases the breakdown distance from the bend zone, reducing the risk of ESD interference in the bend zone.

[0027] In one possible implementation, the grounding member includes a conductive middle frame, which has a bottom frame portion and a side portion connected to each other, the bottom frame portion is located on the non-display side of the display module, the side portion is located on the edge side of the display module, and the side portion includes an antenna radiator.

[0028] In a possible implementation, a projection of the antenna radiator along the shortest distance direction toward the display module at least partially overlaps with the second conductive member to reduce the impact on the OTA performance of the antenna.

[0029] In a possible implementation, the insulating upper cover includes a surrounding frame and a side frame located on one side of the surrounding frame, and the side frame extends from the surrounding frame toward the back side of the display module;

[0030] The first conductive member is arranged on the inner wall of the frame, and the side frame includes a first wall and a second wall. The first wall is arranged opposite to the display module, and the second wall is opposite to or in contact with the grounding member. Part of the second conductive member is located on the first wall, and the other part is located on the second wall.

[0031] In one possible implementation, the electronic device includes a rotating shaft, the number of the insulating covers is at least two, the display module includes a flexible screen, and the at least two insulating covers are unfolded or folded by the rotating shaft; the first gap is provided between the flexible screen and the at least two insulating covers; and the electrostatic protection structure is provided on the at least two insulating covers. The electronic device described in the embodiment of the present application can be a folding device, with at least two insulating covers connecting the flexible screen. The flexible screen can be folded when the two insulating covers are flipped relative to the rotating shaft, and there is a first gap between the insulating covers and the flexible screen to prevent interference between the flexible screen and the insulating covers when folding.

[0032] In a second aspect, the present application provides an insulating cover for enclosing the edge of an insulating cover plate of a display module, the insulating cover comprising a frame and a side frame located on one side of the frame, the side frame extending from the outer edge of the frame, the side frame and the frame forming a bent structure; a first conductive member is provided on the inner wall of the frame, a second conductive member is provided on the inner wall of the side frame, the second conductive member having a resistivity greater than that of the first conductive member, and the first conductive member and the second conductive member are electrically connected or insulated and spaced apart. The insulating cover of the embodiment of the present application can be used to be provided on the display side of an electronic device and enclose the edge of the display module, and a first conductive member and a second conductive member are provided on the inner side of the cover, and by setting the second gap, the second conductive member and a grounding member such as a conductive middle frame are not electrically connected at a low voltage, thereby reducing the current generated by the grounding member due to antenna radiation energy (this current does not include the current generated when the second conductive member releases static electricity transmitted from the first gap to the grounding member) from entering the second conductive member, thereby slowing down the metal loss of the first conductive member and the second conductive member, effectively reducing the impact of the conductive member on the antenna and improving the performance of the antenna. Furthermore, when the second conductive member with a higher resistivity releases static electricity to the grounding member, it creates a greater loop impedance, reducing the high-frequency components during the secondary discharge process and lowering the risk of soft failure. This embodiment of the present application prevents soft failures and other issues in electronic devices while ensuring the antenna has superior Over-the-Air (OTA) performance.

[0033] On the third aspect, the present application provides an electronic device, comprising: a first component; a grounding component; a first conductive component electrically connected to the first component; a second conductive component electrically connected to the grounding component, an insulating gap is set between the first conductive component and the second conductive component, and the resistivity of the second conductive component is greater than the resistivity of the first conductive component. In the embodiment of the present application, the second conductive component is made of a conductive material with a high resistivity, which can be a conductive material with a resistivity at least greater than that of the first conductive component. The first conductive component and the second conductive component are spaced apart, so that there is no direct electrical connection between the second conductive component and the grounding component such as the ground at a lower voltage. By optimizing the material of the tip protection structure between the first component and the grounding component, mainly optimizing the resistivity, and using a high resistivity material to make the second conductive component, the high-frequency component in the tip gap tripping process is reduced, and the product performance during the lightning strike is improved. BRIEF DESCRIPTION OF THE DRAWINGS

[0034] Figure 1 This is a schematic diagram of a double-folding mobile phone in an unfolded state provided by an embodiment of the present application;

[0035] Figure 2 This is a schematic diagram of a flipped-over state of a double-folding mobile phone provided in an embodiment of the present application;

[0036] Figure 3 This is a schematic diagram of a folded state of a double-folding mobile phone provided in an embodiment of the present application;

[0037] Figure 4 This is an exploded schematic diagram of the insulating upper cover, display module, and conductive middle frame provided in an embodiment of the present application;

[0038] Figure 5 2 is a front view of an electronic device provided in an embodiment of the present application (the dotted line indicates the position of the bending area);

[0039] Figure 6 This is a partial cross-sectional view of the insulating upper cover, display module, and conductive middle frame provided in an embodiment of the present application;

[0040] Figure 7 This is a partial cross-sectional view of the insulating upper cover, display module, conductive middle frame, first conductive member, and second conductive member provided in an embodiment of the present application;

[0041] Figure 8 This is an exploded schematic diagram of a portion of the insulating upper cover and the display module provided in an embodiment of the present application;

[0042] Figure 9 is a schematic diagram of a first insulating member provided in an embodiment of the present application;

[0043] Figure 10 This is a schematic diagram of the insulation distance between the first conductive member and the second conductive member provided in the embodiment of the present application. Figure 1 ;

[0044] Figure 11 This is a schematic diagram of the insulation distance between the first conductive member and the second conductive member provided in the embodiment of the present application. Figure 2 ;

[0045] Figure 12 Schematic diagram of the positions of the first conductive member and the second conductive member on the insulating upper cover provided in an embodiment of the present application;

[0046] Figure 13 is a schematic diagram of multiple first conductive members provided in an embodiment of the present application;

[0047] Figure 14 is a cross-sectional view of a first conductive member, a second conductive member, and an insulating upper cover provided in an embodiment of the present application;

[0048] Figure 15 is a schematic diagram of an antenna radiator provided in an embodiment of the present application;

[0049] Figure 16 This is a schematic diagram of the connection between the display module and the circuit board provided in the embodiment of the present application;

[0050] Figure 17 This is a schematic diagram of a display driver chip provided in an embodiment of the present application;

[0051] Figure 18 This is a simplified schematic diagram of a possible protection solution for a power supply product provided in an embodiment of the present application;

[0052] Figure 19 Schematic diagram of ESD current of Example, Comparative Example A and Comparative Example B provided in the embodiment of the present application;

[0053] Figure 20 is a schematic top view of a conductive middle frame provided in an embodiment of the present application;

[0054] Figure 21 This application Figure 20 AA cross-sectional view in FIG;

[0055] Figure 22 This application Figure 20 BB cross-sectional view in FIG;

[0056] Figure 23 This is another schematic diagram of the bending zone structure provided in an embodiment of the present application. DETAILED DESCRIPTION

[0057] The embodiments of the present application are described below in conjunction with the drawings in the embodiments of the present application.

[0058] For ease of understanding, the English abbreviations and related technical terms involved in the embodiments of this application are explained and described below.

[0059] It should be clear that the embodiments described are only part of the embodiments of this application, not all of the embodiments. Based on the embodiments in this application, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of this application.

[0060] The terms used in the embodiments of the present application are for the purpose of describing specific embodiments only and are not intended to limit the present application. The singular forms "a", "an", "the" and "the" used in the embodiments of the present application and the appended claims are also intended to include plural forms unless the context clearly indicates otherwise.

[0061] It should be understood that the term "and / or" as used herein is simply a term used to describe the existence of three possible relationships between related objects. For example, "A and / or B" can represent the existence of A alone, the existence of both A and B, and the existence of B alone. Furthermore, the character " / " in this document generally indicates that the related objects are in an "or" relationship.

[0062] The word "if," as used herein, may be interpreted as "at the time of" or "when" or "in response to determining" or "in response to detecting," depending on the context. Similarly, the phrases "if it is determined" or "if (stated condition or event) is detected" may be interpreted as "when it is determined" or "in response to the determination" or "when detecting (stated condition or event)" or "in response to detecting (stated condition or event)," depending on the context.

[0063] It should be understood that the terms “first”, “second”, etc. used in this application are only used for the purpose of distinguishing descriptions, and cannot be understood as indicating or implying relative importance, nor can they be understood as indicating or implying an order.

[0064] In the description of this application, the terms "center", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating the orientation or position relationship, are based on the orientation or position relationship shown in the accompanying drawings. They are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, they should not be understood as limiting this application.

[0065] When used in this application, "within the range of...", unless it is specifically stated that the end value is not included, it is assumed that both end values ​​of the range are included. For example, in the range of 1 to 5, the two values ​​1 and 5 are included.

[0066] In the description of this application, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected" and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, a conflicting connection or an integral connection; for ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to the specific circumstances. When a component is referred to as "connected" or "accessed" to other components, it should be understood that: the component is not only directly connected to or accessed to other components, but also another component may exist between the component and the other components. On the other hand, when a component is referred to as "directly connected" or "directly accessed" to other components, it should be understood that there is no component between them.

[0067] Electrostatic discharge (ESD) refers to the transfer of electrostatic charge between objects or surfaces with different electrostatic potentials. Mobile phones and other devices can experience electrostatic discharge (ESD) on the screen due to prolonged friction, especially friction against the screen, metal edges, or plastic surfaces. If static electricity is generated in a device and the charge is not transferred to a safe area, it can cause failure of sensitive components (such as the screen), resulting in damage and functional issues such as device malfunction.

[0068] Soft failures occur when static electricity, or other factors, affect the display module's flex zone. Static charges accumulate in circuit nodes within extremely short time intervals (picoseconds to nanoseconds). When the charge exceeds a certain level, stored data changes, causing system errors and, in some cases, display module failures such as a black screen. However, this damage to the circuitry is not permanent; the display module returns to normal after a power cycle. This phenomenon is called a soft failure.

[0069] It should be noted that the electrical connection described in this application refers to the ability for charge to flow between two components, the ability for the two components to be electrically connected in contact, the ability for a certain gap or insulating medium to form an electrical connection in the form of electrical breakdown, or the ability for indirect electrical connection to be achieved through other conductive components.

[0070] An embodiment of the present application provides an electronic device, which may be a terminal or other device, wherein the terminal provided may be a wearable device, an AR (augmented reality)\VR (virtual reality) device, a tablet computer, a laptop computer, an UMPC (ultra-mobile personal computer), a netbook, a PDA (personal digital assistant), or any other terminal, and the embodiments of the present application do not impose any restrictions on this.

[0071] This application provides an embodiment of an electronic device, wherein a foldable mobile phone is taken as an example. Figure 1 A schematic diagram of a double-folding mobile phone in an unfolded state is shown. Figure 2 It shows a schematic diagram of a double-folding mobile phone in a flipped state. Figure 3 The diagram of the folding state of a double-folding mobile phone is shown. Figure 1-Figure 2 - Figure 3 The folding order.

[0072] It should be noted that Figure 1 、 Figure 2 and Figure 3 Only one implementation of the two side shells is shown, and the display screen is located on the outer surface after folding, showing a folding phone with an external screen. In one embodiment, the folding phone can be a folding phone with an internal screen, and the folded display screen can be hidden inside the folded two shells. In one embodiment, the widths of the two shells of the folding phone can be the same or different. In one embodiment, the two shells of the folding phone can be of equal thickness or of unequal thickness. In one embodiment, the folding phone can also be a multi-folding phone such as a tri-folding phone, having three or more shells. The folding phones of the above-mentioned embodiments are all applicable to the electronic devices described in this application, Figure 1 、 Figure 2 and Figure 3 The present invention only illustrates one folding method of a double-folding mobile phone, and does not limit the electronic device described in this application to only a double-folding mobile phone.

[0073] See Figure 1 As shown, the foldable terminal may include a housing 100 and a display module 200 . In this embodiment, the housing 100 is in a square plate shape, and the display module 200 may be located in a cavity enclosed by the housing 100 .

[0074] Among them, see Figure 1 、 Figure 2 and Figure 3As shown, the housing 100 may include a first housing 100 a and a second housing 100 b , and the first housing 100 a and the second housing 100 b may be flipped relative to each other about a rotation axis 100 c . Figures 1 to 3 The X direction is parallel to the width direction of the second shell 100b, the Y direction is parallel to the length direction of the second shell 100b, and the Z direction is parallel to the thickness direction of the second shell 100b. Figures 1 to 3 The second housing 100b can remain relatively stationary, while the first housing 100a can rotate relative to the second housing 100b along the rotation axis 100c. The display module 200 can be a flexible screen, and both the first housing 100a and the second housing 100b are connected to the display screen. When the first housing 100a is flipped from an expanded state to a folded state relative to the second housing 100b, the display module 200 follows the housing 100 from the expanded state to the folded state.

[0075] The housing 100 may include a rotation shaft 100c, through which the first housing 100a and the second housing 100b rotate relative to each other about an axis. The first housing 100a and the second housing 100b are rotatably connected along the rotation shaft 100c. The rotation shaft 100c can rotate relative to each other along an axis 131 to achieve the flipping, closing, and flipping of the first and second housings 100a, 100b. Specifically, the axis 131 in this embodiment refers to the flipping axis when the first and second housings 100a, 100b are flipped relative to each other.

[0076] Regardless of whether the first housing 100a and the second housing 100b are directly or indirectly connected, the axis 131 for relative rotation between the first housing 100a and the second housing 100b extends along the Y direction in the figure, so that the first housing 100a can be flipped relative to the second housing 100b along the axis 131. Figures 1 to 3 As shown, the first housing 100a rotates counterclockwise relative to the second housing 100b along the Y-axis direction to realize the change of the foldable mobile phone from the unfolded state to the folded state.

[0077] The display module 200 is fixedly connected to the first shell 100a and the second shell 100b respectively. Specifically, the display module 200 may be a flexible screen, and the display module 200 may be flipped along with the relative flipping of the first shell 100a and the second shell 100b. Figure 1 A schematic diagram of a bi-fold mobile phone in an unfolded state is shown, in which the display module 200 is fully unfolded to form a large screen; Figure 2 A schematic diagram of a double-folding mobile phone in a flipped state is shown, in which the display module 200 is flipped along with the housing; Figure 3A schematic diagram of a folding state of a bi-folding mobile phone is shown. In this state, the display module 200 is in a folded and retracted state, and the display portion of the display module 200 is folded in half. Specifically, this application only shows an embodiment of the outward folding form of a bi-folding mobile phone. Figure 2 As shown, the first housing 100a can be folded relative to the second housing 100b, and the folded display module 200 is still on the outer surface of the mobile phone; when folded to Figure 3 When in the folded state, the display module 200 is folded to both sides of the mobile phone in the Z direction and the opposite Z direction, and display can be performed through the part of the display module 200 on one side of the Z direction.

[0078] In one embodiment, it can also be an inward folding method (not shown in the figure), and the flexible screen can be folded and stored in the shell, and when the double-folding mobile phone is in a folded state, it can be displayed through another screen (when the mobile phone is in an unfolded state, the screen is located on the other side of the mobile phone relative to the flexible screen); for example, another display screen (not shown in the figure) is provided on the side of the first shell 100a opposite to the display module 200, and the size of the display screen can be the same as that of the first shell 100a, or slightly smaller than the size of the first shell 100a, and is fixed on the Z opposite side of the first shell 100a to display when the folding mobile phone is in a folded state.

[0079] In some possible implementations, see Figure 4 、 Figure 5 and Figure 6 The electronic device shown in the figure takes a foldable mobile phone as an example. The electronic device may include: an insulating upper cover 110, a display module 200, a conductive middle frame 120, a battery cover, and a circuit board and corresponding components located inside the mobile phone. The insulating upper cover 110, the conductive middle frame 120, and the battery cover, etc., may constitute the housing 100 described in this embodiment. In the bi-fold mobile phone, the insulating upper cover 110, the conductive middle frame 120, and the battery cover may each be two, respectively forming a first housing 100a and a second housing 100b. The first housing 100a may include the insulating upper cover 110, the conductive middle frame 120, and the battery cover, and the second housing 100b may include the insulating upper cover 110, the conductive middle frame 120, and the battery cover. The insulating upper cover 110 and the conductive middle frame 120 may enclose a cavity structure, and the display module 200 may be located in the cavity. The battery cover and the display module 200 may be located on the upper and lower sides of the conductive middle frame 120, respectively. The conductive middle frame 120 and the inner surface of the battery cover may form another cavity. In one embodiment, the cavity may contain devices such as a battery, a flexible circuit board, and a circuit board.

[0080] In one embodiment, see Figure 5As shown, the display module 200 includes a laminated insulating cover plate 210, a display module stack 220, and a flexible display layer 230. The insulating cover plate 210 may be a glass cover layer, and the display module stack 220 may include a laminated structure such as an optically clear adhesive (OCA) layer and a polarizer. The polarizer may be a structure such as a polarizer film (POL).

[0081] In one embodiment, in one packaging mode, see Figure 7 As shown, the flexible display layer 230 can be a flexible touch layer (PANEL), including a flexible circuit board, etc.; the bending area 230a can be a bending structure formed by bending the flexible circuit board of the PANEL layer to connect the PANEL layer area and the chip in the Z reverse direction part of the display module stack 220.

[0082] In one embodiment, in another packaging mode, see Figure 23 As shown, the flexible display layer 230 can be a flexible touch layer (PANEL), and a flexible circuit board is provided on one edge side of the PANEL layer. The flexible circuit board is connected to the PANEL layer, and the flexible circuit board is bent to the bottom of the PANEL layer to connect the PANEL layer and the chip.

[0083] In one embodiment, the bending area 230a described in the embodiment of the present application refers to the bending area of ​​the edge portion of the display module in the electronic device. Figure 2 The central bend portion, which is located near the hinge 100c, is slightly different from the bend region shown in the embodiment of this application. The bend of the hinge 100c is to achieve a foldable structure for the electronic device, while the bend region 230a is to increase the display area of ​​the display.

[0084] In one embodiment, see Figure 6As shown, when the electronic device is a foldable phone, since the foldable phone needs to bend back and forth, the display module 200 and the housing 100 are generally connected by a movable connection. In one embodiment, a first gap 130a is provided between the display module 200 and the housing 100. In electronic devices with folding functions, such as foldable phones, in order to prevent a certain degree of interference between the housing 100 and the display module 200 during bending, for example, if the displacement of the housing 100 and the display module 200 is different or deviates during bending, the housing 100 will pull or squeeze the display module 200, which may seriously damage the display module 200. In one embodiment, a certain first gap 130a is left at the edge of the housing 100 and the insulating cover plate 210 to prevent interference with the housing 100 when the insulating cover plate 210 is bent. This gap is generally in the range of 0.05mm to 0.2mm, which can make the display module 200 smoother and safer during the folding process. In this embodiment, the first gap 130a is located between the insulating upper cover 110 and the insulating cover plate 210. In this case, if the static electricity on the display module 200 is not grounded, it may enter the interior of the mobile phone through the gap between the display module 200 and the housing 100, causing damage to the mobile phone's circuit board, flexible circuit board, and display screen.

[0085] It should be noted that the first gap 130a indicated in the embodiment of the present application may refer to the non-sealed connection between the insulating upper cover 110 and the insulating cover plate 210. Figure 6 In the gap structure shown, the insulating upper cover 110 and the insulating cover plate 210 are not in contact at the first gap 130a.

[0086] In one embodiment, the first gap 130a also includes a microscopic gap. Appearing to be in contact with the insulating cover 110 and the insulating cover plate 210 at the first gap 130a, the gap is not hermetically sealed. The first gap 130a prevents the passage of moisture, dust, and other substances, but allows electric charges to pass through the first gap 130a. In this embodiment, the primary function of the first gap 130a is to maintain a free state between the insulating cover plate and the insulating cover. This allows the flexible screen to bend without interference from the rigid insulating cover, thus preventing damage to the flexible screen due to stress during bending.

[0087] In one embodiment, see Figure 5 and Figure 6As shown, the circuit board of the display module 200 is bent from the side near the insulating upper cover 110 to the side near the conductive middle frame 120 to form a bending area 230a, so as to achieve a narrower black border at the side of the display panel and increase the display area of ​​the display panel to the proportion of the entire mobile phone panel. It should be noted that the bending area 230a is a part of the structure of the flexible circuit board and is not related to the display layer. The bending area 230a can be formed by bending the edge of the display module 200 or other circuit board area that does not have a display function. Although the bending area 230a does not have a display function, the bending area 230a is provided with the wiring structure of the flexible screen, such as the touch wiring layer of the OLED screen. When the charge on the surface of the display module 200 enters the interior of the mobile phone through the first gap 130a and the static electricity is transferred to the position of the bending area 230a, it will cause the display module 200 to have display errors such as soft failure, affecting the display quality of the electronic device. It should be noted that the bending region 230a can be a curved extension of a conductive layer (PI conductive layer) based on polyimide (PI), and the curved extension can be connected to a circuit board. The bending region 230a can also be a flexible board spliced ​​between the PI conductive layer and the circuit board. The flexible board also has traces similar to those on the PI conductive layer and is susceptible to static electricity. The flexible display layer 230 can be a flexible trace layer (panel layer). The flexible display layer 230 of the display screen can bend to a certain extent at some locations on the edge, forming the bending region 230a. The bending region 230a is the curved area of ​​the flexible display layer 230 connecting the display module stack 220 and the circuit board.

[0088] It should be noted that, under the premise of ensuring that the shell 100 does not interfere with the display module 200 when the foldable mobile phone is folded, the shell 100 and the display module 200 can be fitted together. At this time, there is no obvious gap between the shell 100 and the display module 200, but static electricity can still enter the interior of the mobile phone from the fitting connection surface between the shell 100 and the display module 200, causing damage to the mobile phone's circuit board, flexible circuit board and display screen.

[0089] The embodiment of the present application provides an electronic device that can solve the above problem, and the static electricity between the display module 200 and the insulating cover 110 will not affect the bending area 230a. Figure 1 、 Figure 4 、 Figure 5 and Figure 7As shown, the electronic device, taking a foldable mobile phone as an example, may include a housing 100 and a display module 200. The housing 100 may be divided into a first housing 100a and a second housing 100b. The first housing 100a and the second housing 100b can be flipped relative to each other about a rotation axis. The first housing 100a and the second housing 100b each include an insulating cover 110. The insulating cover 110 surrounds the edge of the display module 200, and a first gap 130a is defined between the insulating cover 110 and the display module 200. The first gap 130a may be located on the display side of the display module 200.

[0090] The electronic device further includes a conductive structure 300 and a grounding member. The grounding member may be a grounding structure inside the electronic device, such as a conductive middle frame, a circuit board, and a conductive back plate. The grounding member is at least partially disposed on the back side of the display module 200. The back side refers to the non-display side of the display module 200. In one embodiment, see Figure 4 and Figure 7 As shown, the grounding member can be taken as an example of the conductive middle frame 120 in the folding mobile phone. The conductive middle frame 120 can be set on the back side (non-display side) of the display module 200, and the display module 200 can be fixed on the conductive middle frame 120. The conductive middle frame 120 can be located on the back side of the insulating cover 110 (such as Figure 7 The display module 200 is bent from the side near the insulating upper cover 110 to the side near the conductive middle frame 120 to form a bending area 230a of the flexible display layer, thereby achieving a narrower black border at the side of the display panel and increasing the display area of ​​the display panel to the proportion of the entire mobile phone panel. The bending area 230a can be formed by bending the edge of the display module 200 or other areas without display function. Although the bending area 230a does not have a display function, it is provided with the wiring structure of the flexible screen, such as the touch wiring layer of the OLED screen.

[0091] In one embodiment, the display module 200 and the insulating cover 110 are spaced apart in the X direction. Figure 7 The bending region 230a, the insulating cover 110, and the conductive middle frame 120 enclose a first cavity 230b, which separates the insulating cover 110 from the bending region 230a. The conductive structure 300 can be located within the first cavity 230b and electrically connect the first gap 130a and the conductive middle frame 120 to ground static electricity entering the first gap at the conductive middle frame 120, preventing static electricity from being transferred from the surface of the display module 200 to the bending region 230a and causing display failure of the display module 200.

[0092] The conductive structure 300 may include a first conductive member 310 and a second conductive member 320. The first conductive member 310 is used to absorb static electricity in the first gap 130a. The second conductive member 320 is electrically connected to the first conductive member 310. The first conductive member 310 absorbs static electricity in the first gap 130a into the second conductive member 320, and transmits the static electricity to the grounding member through the second conductive member 320 for grounding, thereby preventing the static electricity accumulated in the first gap 130a from being transmitted to the grounding member. In one embodiment, see Figure 7 As shown, the first conductive member 310 may be partially located in the first gap 130a, and another portion may extend outside the first gap 130a, for example Figure 7 The second conductive member 320 protrudes on the left side of the first gap 130 a , and the second conductive member 320 can be electrically connected to the first conductive member 310 outside the first gap 130 a .

[0093] In one embodiment, see Figure 4 、 Figure 7 and Figure 8 As shown, Figure 8 This is an exploded schematic diagram of the insulating cover portion and the display module provided in the embodiment of the present application, wherein Figure 8 The insulating cover area shown can be Figure 4 One of the three long strip areas of the middle insulating upper cover, and this portion of the insulating upper cover and the bending area 230a are arranged opposite to each other. Figure 8 The display module 200 is shown as being moved a distance in the X direction relative to the insulating cover 110 to form an exploded view. In the electronic device, the distance between the bending area 230a and the side frame 1102 is not as large as that in FIG. Figure 8 The larger spacing shown. The insulating cover 110 may include a frame 1101 and a side frame 1102. The frame 1101 is located on the display side of the display module 200 and is enclosed in a "C" shape (folding phone) or a "mouth" shape (flat phone). The side frame 1102 is located on one side of the edge of the insulating cover 210 of the display module 200 and is bent and extended from the edge of the frame 1101 to the side opposite to the Z direction. In one embodiment, the frame 1101 and the side frame 1102 can be two independent frames, and the two independent frames are fixedly connected by gluing or snapping. In one embodiment, the frame 1101 and the side frame 1102 can be an integrated structure. The frame 1101 and the side frame 1102 can be two regions of the insulating cover 110. The XZ cross-sectional view of the insulating cover 110 can be an "L"-shaped structure, and the frame 1101 and the side frame 1102 form a bent structure.

[0094] In one embodiment, see Figure 7As shown, the first conductive member 310 can be located on the side of the frame 1101 along the anti-Z direction, with one end of the first conductive member 310 in the X direction extending within the first gap 130a. The end of the first conductive member 310 in the anti-X direction protrudes from the left side of the first gap 130a to approach the inner wall of the side frame 1102. The second conductive member 320 can be located on the side of the side frame 1102 in the X direction, with one end of the second conductive member 320 in the Z direction extending to approach the frame 1101 and electrically connected to the first conductive member 310. In this embodiment, the end of the first conductive member 310 in the anti-X direction and the end of the second conductive member 320 in the Z direction can contact each other, thereby achieving contact and electrical connection between the first conductive member 310 and the second conductive member 320.

[0095] In one embodiment, see Figure 7 As shown, an insulating space is set between the insulating upper cover 110 and the conductive middle frame 120, wherein the insulating space setting in the embodiment of the present application refers to an insulating structure set between the insulating upper cover 110 and the conductive middle frame 120, and the insulating structure can be a gap between the insulating upper cover 110 and the conductive middle frame 120, and the gap can be Figure 7 The second gap 130b is shown. The side frame 1102 of the insulating upper cover 110 has a second wall 1102b opposite to the conductive middle frame 120 at the second gap 130b. One end of the second conductive member 320 in the Z-direction can be bent to fit on the second wall 1102b, so that the end of the second conductive member 320 in the Z-direction can be located within the second gap 130b. The second gap 130b is filled with air. In this solution, to ensure that electrostatic charge does not discharge to the bending area 230a before and after breaking through the second gap 130b and causing display function abnormality, the breakdown threshold voltage of the second gap 130b (referring to the breakdown of the air or other medium in the second gap 130b) and the voltage from the second conductive member 320 to the conductive middle frame 120 ground plane both need to be less than N times the breakdown voltage between the second conductive member 320 and the metal lead in the bending area 230a, where N is an adjustment coefficient and can be between 1 / 3 and 1.

[0096] When the electrostatic charge absorbed by the second conductive member 320 reaches a certain amount, so that the potential difference between the second conductive member 320 and the conductive middle frame 120 is sufficient to break through the second gap 130 b , the second conductive member 320 can transfer the electrostatic charge to the conductive middle frame 120 .

[0097] In one embodiment, see Figure 7 As shown, the insulating cover 110 includes a frame 1101 and a side frame 1102 located on one side of the frame 1101. The side frame 1102 extends from the frame 1101 toward the back side of the display module 200. Figure 7The first conductive member 310 can be arranged on the inner wall of the frame 1101. The side frame 1102 includes a first wall 1102a and a second wall 1102b. The first wall 1102a is arranged opposite to the display module 200. The first wall 1102a can be located outside the edge of the display module 200. The second wall 1102b and the grounding member (see Figure 7 The conductive middle frame 120 shown is opposite or in contact with each other, and a portion of the second conductive member 320 is located on the first wall 1102a, and another portion can be located on the second wall 1102b.

[0098] In one embodiment, see Figure 7 As shown, Figure 7 The dashed arrows in the figure represent a schematic diagram of the charge collected in the first gap 130a being transferred to the grounding member for grounding. The charge collected in the first gap 130a sequentially passes through the first conductive member 310 and the second conductive member 320, and is transferred to the conductive middle frame 120 through secondary discharge at the second conductive member 320. This prevents the electrostatic charge collected in the first gap 130a from being transferred to the bending region 230a, preventing problems such as soft failures in the display module 200 and improving the service life and user experience of the electronic device.

[0099] In one embodiment, the distance of the second gap 130b should be within a certain range, for example, less than 0.2 mm. When the amount of static electricity collected by the second conductive member 320 is small, the second conductive member 320 and the conductive middle frame 120 are disconnected, and the charge collected on the second conductive member 320 is not transferred to the conductive middle frame 120. Conversely, the current in the conductive middle frame 120 (for example, the conductive middle frame 120 is close to the antenna, causing the conductive middle frame 120 to induce a certain degree of current) will not be induced in the first conductive member 310 and the second conductive member 320. Therefore, when the first conductive member 310 and the second conductive member 320 do not conduct the static electricity collected by the first gap 130a, no current will be generated, thereby preventing metal loss in the first conductive member 310 and the second conductive member 320, which may lead to poor antenna performance.

[0100] The first conductive member 310 collects static electricity in the first gap 130a, which is then transferred from the first conductive member 310 to the second conductive member 320. When the static charge collected by the second conductive member 320 reaches a certain level and the potential difference between the second conductive member 320 and the conductive middle frame 120 reaches the breakdown voltage of the second gap 130b, the second gap 130b is electrically broken down. The static charge collected by the second conductive member 320 passes through the second gap 130b, resulting in a secondary discharge and entering the conductive middle frame 120. This secondary discharge can occur instantaneously. After the charge is transferred to the second conductive member 320, the second gap 130b returns to an insulating state, preventing the current on the conductive middle frame 120 from being transferred to the second conductive member 320.

[0101] In one embodiment, the first conductive member 310 can be made of a conductive material and have a relatively low resistivity. For example, the first conductive member 310 can be made of a material such as silver paste or copper. Small-particle silver powder is added to the silver paste, where small particle size refers to particles with a particle size in the micron range. The silver powder particles have a relatively high filling ratio in the silver paste, for example, in the range of 60% to 70%, or above 70%. The resistivity ρ1 of the first conductive member 310 can be less than 0.000001Ωm. The first conductive member 310 can be a silver paste layer printed on the inner wall surface of the insulating upper cover 110, or a copper layer fixed to the inner wall surface of the insulating upper cover 110 by a process such as gluing. The first conductive member 310 with a relatively low resistivity is more conducive to absorbing the electrostatic charge in the first gap 130a.

[0102] In one embodiment, the second conductive member 320 can be made of a conductive material, and the resistivity of the second conductive member 320 is relatively high, at least greater than the resistivity of the first conductive member 310. In one embodiment, the second conductive member 320 can be made of a high-resistivity conductive material, such as graphite or carbon fiber, and the resistivity ρ2 of the material can be greater than 0.00001 Ωm. The second conductive member 320 can be a metal layer formed by printing or etching the above-mentioned material and attached to the inner wall surface of the insulating cover 110.

[0103] In one embodiment, the resistivity of the second conductive member 320 may be less than 0.01 Ωm, so that the second conductive member 320 can transfer the electrostatic charge absorbed on the first conductive member 310 to the grounding member for grounding.

[0104] In one embodiment, an electronic device corresponding to the above embodiment can be placed on an ESD test platform for an ESD electrostatic test. The platform is the tabletop of a test table, which can be placed on a metal surface. The test tabletop is provided with a metal layer, and an insulating layer is provided above the metal layer. The insulating layer can be 0.5 mm thick. The electronic device to be tested is placed on the insulating layer, and static electricity is discharged into the gap between the electronic device using an electrostatic gun. The current flowing through the second conductive element is then measured.

[0105] See Figure 19As shown, comparative example A is: the first conductive part, the second conductive part and the conductive middle frame are in contact and electrically connected in sequence, and the first conductive part and the second conductive part can be made of the same low-resistivity material. Comparative example B is: the first conductive part and the second conductive part are in contact and electrically connected, an insulating interval is set between the second conductive part and the conductive middle frame, and conduction is performed by secondary discharge, and the first conductive part and the second conductive part can be made of the same low-resistivity material. The solution of the embodiment of the present application is: the first conductive part and the second conductive part are in contact and electrically connected, an insulating interval is set between the second conductive part and the conductive middle frame, and conduction is performed by secondary discharge, and the first conductive part is made of a low-resistivity material, and the second conductive part can be made of a high-resistivity material. Figure 19 As shown, in the ESD test, the peak current of the corresponding solution of the embodiment of the present application is smaller than the peak current of comparative example A and comparative example B.

[0106] In the embodiment of the present application, by limiting the second conductive member 320 to be made of a conductive material with a high resistivity, which can be a conductive material with a resistivity at least greater than that of the first conductive member 310, the second gap 130b is set so that the second conductive member 320 and the grounding member such as the conductive middle frame will not be electrically connected at a lower voltage, thereby reducing the current generated by the grounding member due to antenna radiation energy (this current does not include the current generated when the second conductive member 320 releases static electricity transmitted from the first gap 130a to the grounding member) entering the second conductive member 320, which can slow down the metal loss of the first conductive member 310 and the second conductive member 320, effectively reducing the impact of the conductive member on the antenna and improving the performance of the antenna. In addition, when the second conductive member 320 with a larger resistivity releases static electricity to the grounding member, a larger loop impedance can be formed, reducing the high-frequency component in the secondary discharge process and reducing the risk of ESD soft failure. The embodiment of the present application prevents ESD soft failure and other problems from occurring in electronic devices while ensuring that the antenna has better Over-the-Air Technology (OTA) performance.

[0107] In some possible implementations, see Figure 9 As shown, an insulating space is set between the insulating upper cover 110 and the conductive middle frame 120, wherein the insulating space setting described in the embodiment of the present application may also refer to a first insulating member 130c being set between the insulating upper cover 110 and the conductive middle frame 120.

[0108] See Figure 9 As shown, the side frame 1102 of the insulating upper cover 110 has a second wall 1102b on the side opposite to the conductive middle frame 120, and one end of the second conductive member 320 along the Z-opposite direction can be bent to fit on the second wall 1102b, so that the second conductive member 320 can be located between the insulating upper cover 110 and the conductive middle frame 120 at one end in the Z-opposite direction.

[0109] One side of the first insulating member 130c in the Z direction can be in contact with the second conductive member 320, and the side of the first insulating member 130c in the opposite Z direction can be in contact with the conductive middle frame 120. In this solution, to ensure that electrostatic charge does not discharge into the bend region 230a before and after breakdown of the first insulating member 130c, causing display malfunction, the breakdown threshold voltage of the first insulating member 130c and the voltage between the second conductive member 320 and the ground plane of the conductive middle frame 120 must both be less than N times the breakdown voltage between the second conductive member 320 and the metal lead in the bend region 230a, where N is an adjustment factor and can be between 1 / 3 and 1.

[0110] When the electrostatic charge absorbed by the second conductive member 320 reaches a certain amount, so that the potential difference between the second conductive member 320 and the conductive middle frame 120 is sufficient to break through the first insulating member 130 c , the second conductive member 320 can transfer the transmitted electrostatic charge to the conductive middle frame 120 .

[0111] In one embodiment, the first insulating member 130c may be an insulating medium such as an anodized layer or adhesive film, having a resistivity greater than 1000 kΩm. The anodized layer may be an anodized layer formed on the surface of a metal material through oxidation. The adhesive film may be an insulating adhesive. When the potential difference between the second conductive member 320 and the conductive middle frame 120 is small, the insulating adhesive exhibits insulating properties. When the potential difference between the second conductive member 320 and the conductive middle frame 120 increases to a certain level, the electrostatic charge adsorbed on the second conductive member 320 can break through the insulating adhesive and reach the conductive middle frame 120 for grounding. The adhesive film may also be a nonlinear conductive adhesive. Nonlinear conductive adhesive is a type of adhesive material with nonlinear conductive properties. When the potential difference between the two ends is low (for example, within 100V), the nonlinear conductive adhesive has a certain resistivity. The resistivity is large enough to insulate the second conductive member 320 from the conductive middle frame 120. When the potential difference between the two ends of the nonlinear conductive adhesive increases to a certain level (for example, greater than 100V), the resistivity of the nonlinear conductive adhesive drops sharply, allowing the second conductive member 320 to transfer the adsorbed electrostatic charge to the conductive middle frame 120 through the nonlinear conductive adhesive, thereby forming a secondary discharge release method.

[0112] In some possible implementations, see Figure 10 As shown, the first conductive member 310 and the second conductive member 320 are provided with an insulating gap, for example, there is a third gap 130d between the first conductive member 310 and the second conductive member 320. Specifically, the first conductive member 310 can be attached to the inner wall of the frame 1101, and the second conductive member 320 can be attached to the inner wall of the frame 1101. Figure 9A third gap 130d is provided between one end in the Z direction and the first conductive member 310. It should be noted that there are multiple options for the spacing between the first conductive member 310 and the second conductive member 320. For example, the spacing can be located on the inner wall of the enclosure 1101, on the inner wall of the side frame 1102, or on the inner walls of both the enclosure 1101 and the side frame 1102. The spacing can be designed based on the structure and position of the first conductive member 310 and the second conductive member 320. The first conductive member 310 and the second conductive member 320 are not directly or indirectly electrically connected. When the potential difference is low, the first conductive member 310 will not release electrostatic charge to the second conductive member 320. The design of the third gap 130d can be customized based on actual needs.

[0113] The second conductive member 320 is electrically connected to the conductive middle frame 120, where the electrical connection may include a contact electrical connection between the second conductive member 320 and the conductive middle frame 120. In one embodiment, a third conductive member 330 may be disposed between the second conductive member 320 and the conductive middle frame 120, with the upper and lower ends of the third conductive member 330 respectively contacting and electrically connecting with the second conductive member 320 and the conductive middle frame 120.

[0114] In one embodiment, the first conductive member 310 can be made of a conductive material and have a relatively low resistivity. For example, the first conductive member 310 can be made of a material such as silver paste or copper. Small-particle silver powder is added to the silver paste, where small particle size refers to particles with a particle size in the micron range. The silver powder particles have a relatively high filling ratio in the silver paste, for example, in the range of 60% to 70%, or above 70%. The resistivity ρ1 of the first conductive member 310 can be less than 0.000001Ωm. The first conductive member 310 can be a silver paste layer printed on the inner wall surface of the insulating upper cover 110, or a copper layer fixed to the inner wall surface of the insulating upper cover 110 by a process such as gluing. The first conductive member 310 with a relatively low resistivity is more conducive to absorbing the electrostatic charge in the first gap 130a.

[0115] In one embodiment, the second conductive member 320 can be made of a conductive material, and the resistivity of the second conductive member 320 is relatively high, at least greater than the resistivity of the first conductive member 310. In one embodiment, the second conductive member 320 can be made of a high-resistivity conductive material, such as graphite or carbon fiber, and the resistivity ρ2 of the material can be greater than 0.00001 Ωm. The second conductive member 320 can be a metal layer formed by printing or etching the above-mentioned material and attached to the inner wall surface of the insulating cover 110.

[0116] When the first conductive member 310 continuously absorbs the electrostatic charge of the first gap 130a, and the potential difference between the first conductive member 310 and the second conductive member 320 increases to a level that can break through the third gap 130d, the electrostatic charge absorbed by the first conductive member 310 can be transferred to the second conductive member 320 and then transferred to the conductive middle frame 120 through the second conductive member 320.

[0117] The third gap 130d is filled with air. In this solution, in order to ensure that the electrostatic charge will not discharge to the bending area 230a before and after the breakdown of the third gap 130d, causing abnormal display function, the breakdown threshold voltage of the third gap 130d (referring to the breakdown of the air or other medium in the third gap 130d) and the voltage from the first conductive member 310 to the conductive middle frame 120 ground plane both need to be less than N times the breakdown voltage between the first conductive member 310 and the metal lead in the bending area 230a, where N is an adjustment coefficient and can take a value between 1 / 3 and 1.

[0118] In this embodiment, the secondary trip point is set before the second conductive member 320 with high resistivity, and the current limiting effect of the second conductive member 320 will be better. Under the same size, the high-frequency suppression effect of the secondary trip will be better.

[0119] In one embodiment, see Figure 11 As shown, an insulating space is set between the first conductive member 310 and the second conductive member 320. For example, a second insulating member 130e can be set between the first conductive member 310 and the second conductive member 320. Similar to the first insulating member 130c, the two ends of the second insulating member 130e can be in contact with the first conductive member 310 and the second conductive member 320 respectively, or have a certain gap, which can be electrically broken down.

[0120] Among them, in this solution, in order to ensure that the electrostatic charge will not discharge to the bending area 230a before and after the breakdown of the second insulating part 130e, causing abnormal display function, the breakdown threshold voltage of the second insulating part 130e and the ground plane voltage from the first conductive part 310 to the conductive middle frame 120 need to be less than N times the breakdown voltage between the first conductive part 310 and the metal lead of the bending area 230a, where N is the adjustment coefficient, which can take a value between 1 / 3 and 1.

[0121] When the electrostatic charge adsorbed by the first conductive member 310 reaches a certain amount, so that the potential difference between the first conductive member 310 and the second conductive member 320 is sufficient to break through the second insulating member 130e, the first conductive member 310 can transfer the transmitted electrostatic charge to the second conductive member 320 and finally be grounded through the conductive middle frame 120.

[0122] In some possible implementations, see Figure 7As shown, the display module 200 includes a flexible circuit board with a bending area 230a to achieve narrower black borders on the sides of the display panel, thereby increasing the display area of ​​the display panel to the entire mobile phone panel. The bending area 230a can be formed by bending the edge of the display module 200 or other areas that do not have a display function. Although the bending area 230a does not have a display function, the bending area 230a is provided with a flexible screen wiring structure, such as a touch wiring layer of an OLED screen. When the charge on the surface of the display module 200 enters the interior of the mobile phone through the first gap 130a and the static electricity is transferred to the position of the bending area 230a, it will cause the display module 200 to have display errors such as soft failure, affecting the display quality of the electronic device.

[0123] The insulating cover 110 has an inner side surface 111 on the inner side, the bending area 230a and the inner side surface 111 are arranged opposite to each other, and the first conductive member 310 can be arranged on the inner side surface 111. Figure 7 As shown, the first conductive member 310 is located on the inner side surface 111 of the surrounding frame 1101 .

[0124] In one embodiment, see Figure 4 and Figure 8 As shown, Figure 8 The view shown is an exploded view of a portion of the insulating cover and the display module viewed directly from the back of the foldable phone after it is unfolded. The bending area 230a can be provided on the side of the display module in the opposite direction of the X direction, or only on one side in the X direction, or on both sides in the X direction and the opposite direction of the X direction, depending on the design requirements of the foldable phone. On the side with the bending area 230a, for example Figure 8 On the side opposite to the X direction shown, a first conductive member 310 is provided on the inner side surface 111 of the insulating upper cover 110 .

[0125] Wherein, along the extension direction of the inner side surface 111 where the first conductive member 310 is located (eg Figure 8 The length of the first conductive element 310 is greater than or equal to the length of the bending region 230a. Figure 8 As shown, the length of the first conductive member 310 along the Y-axis direction is H1, and the length of the bending zone 230a along the Y-axis direction is H2. The length H1 is greater than or equal to the length H2, so that the first conductive member 310 can cover the bending zone 230a in the length direction. The static electricity collected in the first gap 130a can be adsorbed by the first conductive member 310 as much as possible, and there will be no vacant area (referring to the space where the first conductive member 310 is not set) that allows static electricity to be transferred to the bending zone 230a, so as to prevent the bending zone 230a from being affected by static electricity and causing soft failure and other faults as much as possible.

[0126] It should be noted that, see Figure 4 As shown, the inner side surface of the insulating cover 110 is annular in structure, and inner side surfaces 111 are provided around the insulating cover 110, for example Figure 8 Only the Figure 4 The inner side surface 111 of the middle insulating cover 110 on the side opposite to the X direction, similarly, the insulating cover 110 may have inner side surfaces 111 on the side in the X direction, the opposite to the X direction, the Y direction, and the opposite to the Y direction, for a total of four inner side surfaces 111. The inner side surface 111 where the first conductive member 310 is located in this embodiment may refer to Figure 8 The inner side surface 111 is on the side opposite to the X direction.

[0127] In one embodiment, the first conductive member 310 may be partially bent to Figure 8 The first conductive member 310 is located on the frame 1101 on one side of the Z direction, and is located on the inner side 111 of the frame 1101 on the one side of the Y direction. Alternatively, both ends of the first conductive member 310 are bent to Figure 8 The first conductive members 310 are disposed on the four inner side surfaces 111 of the entire frame 1101, located in the X direction, the X-opposite direction, the Y direction, and the Y-opposite direction of the frame 1101. These four inner side surfaces are located in the X direction, the X-opposite direction, the Y direction, and the Y-opposite direction of the frame 1101, respectively. This allows the first conductive members 310 to absorb charge collected throughout the first gap 130a (a first gap 130a is present along the entire periphery of the display module 200) and transfer the charge to the conductive middle frame 120 for grounding via the second conductive members 320. In one embodiment, the first conductive members 310 on the four inner side surfaces are electrically connected, allowing the first conductive members 310 to absorb static charge collected throughout the entire first gap 130a. Only one second conductive member 320 is required to transfer the static charge to the conductive middle frame 120 for grounding.

[0128] In one embodiment, see Figure 8 As shown, the width W1 of the first conductive member 310 is greater than or equal to 0.5 mm, wherein the first conductive member 310 may be in the shape of a long strip, and the width W1 of the first conductive member 310 may be Figure 8 The width W1 of the first conductive member 310 extending along the X-direction is greater than or equal to 0.5 mm, and can be, for example, 1.0 mm or 1.5 mm. This allows the first conductive member 310 to be partially disposed within the first gap between the display module 200 and the insulating cover 110, while the remaining portion can extend from the first gap and be in electrical contact or insulated from the second conductive member 320 near the side frame 1102. Furthermore, the first conductive member 310 can be a metal layer disposed on the inner side surface 111. The relatively large width allows the first conductive member 310 to better adhere to the inner side surface 111 and better absorb electrostatic charges in the first gap.

[0129] In one embodiment, see Figure 8 As shown, the second conductive member 320 is disposed on the inner side 111. Specifically, the second conductive member 320 is disposed on the inner side 111 of the side frame 1102. Along the extension direction of the inner side 111, the length H3 of the second conductive member 320 is greater than or equal to 0.5 mm. Figure 8 The length of the second conductive member 320 extending in the Y direction can be a metal layer provided on the inner side surface 111. By limiting the length of the second conductive member 320 in the Y direction, the second conductive member 320 can be better fitted on the inner side surface 111, and the second conductive member 320 can better contact with the silver paste, thereby improving the stability of the electrical connection. In one embodiment, see Figure 8 As shown, the length H3 of the second conductive member 320 can be less than 10 mm, so that the length of the second conductive member 320 along the Y direction should not be too large. On the basis of ensuring that the second conductive member 320 can transfer electrostatic charges to the conductive middle frame 120 for grounding, strong electrostatic interference is prevented between the second conductive member 320 with a larger length and the bending area 230a.

[0130] In one embodiment, the display module 200 has a bending region 230a, and the spacing H4 between the bending region 230a and the conductive structure is less than or equal to 5 mm. In one embodiment, the spacing may be the spacing between the bending region 230a and the conductive structure at the closest position. Figure 7 As shown, the conductive structure 300 may include a first conductive member 310 and a second conductive member 320. The second conductive member 320 is closest to the bending region 230a, and the minimum distance H4 between the second conductive member 320 and the bending region 230a is less than or equal to 5mm. Taking into account factors such as product size optimization design, the equivalent breakdown distance H4 can be designed to be less than 5mm, for example, 2mm. On this basis, the conductive structure design of the first and second conductive members shown in the above embodiments, the design of the secondary discharge structure, and the design of the resistivity of the second conductive member being greater than that of the first conductive member can prevent static electricity from affecting the bending region 230a.

[0131] In some possible implementations, the number of the second conductive member 320 may be one. Figure 12 As shown, the number of the second conductive members 320 can be at least two, and the at least two second conductive members 320 are arranged at intervals along the edge extension direction of the display module 200, and the resistivity of the at least two second conductive members 320 is greater than the resistivity of the first conductive member 310. Figure 12As shown, this embodiment uses three second conductive members 320 as an example. The three second conductive members 320 can be arranged at intervals along the Y-axis, and all three second conductive members 320 are located between the display module and the insulating cover 110. The three second conductive members 320 can have the same shape, material, and size. The resistivity of the three second conductive members 320 can be greater than the resistivity of the first conductive member 310, and the resistivity of the three second conductive members 320 can be greater than 0.00001Ωm.

[0132] In one embodiment, see Figure 13 As shown, the number of first conductive members 310 is at least two, the number of second conductive members 320 is greater than or equal to the number of first conductive members 310, and the first conductive member 310 and at least one second conductive member 320 are electrically connected or provided with an insulating interval. In the embodiment of the present application, the length of the first conductive member 310 can be consistent with the length of one side of the electronic device. In addition to the aforementioned metal loss caused by the coupling current, which affects the antenna performance, another effect is that the first conductive member couples with the antenna to form stray signals, which leads to a pit in the antenna efficiency. In the embodiment of the present application, the longer first conductive member is interrupted and separated into multiple shorter first conductive members, which can control the frequency of the efficiency pit. The stray frequency point can be moved out of the design frequency band by adjusting the position of the interruption point.

[0133] Among them, see Figure 13 As shown, two first conductive members 310 may be disposed at positions opposite to each other in the bending region 230a, and the two first conductive members 310 may be insulated and spaced apart by a fourth gap 130f. In one embodiment, the two first conductive members 310 may also be insulated and spaced apart by an insulating medium.

[0134] In which, each first conductive member 310 is electrically connected to at least one second conductive member 320 or forms an insulating interval arrangement, so that the electrostatic charge adsorbed by each first conductive member 310 can be transferred to the second conductive member 320 through its corresponding second conductive member 320, and finally grounded through the conductive middle frame.

[0135] In one embodiment, see Figure 13 As shown, at least two first conductive members 310 are spaced apart, and the spacing distance H5 between two adjacent first conductive members 310 is less than 2 mm, so as to avoid the first conductive member 310 being unable to effectively pick up electrostatic charges during ESD testing due to the gap being too large, thereby causing static electricity to directly enter the insulating upper cover 110 and the conductive middle frame 120 through the fourth gap 130f to form a cavity structure, resulting in abnormal display function.

[0136] In one embodiment, at least one of the first conductive member 310 and the second conductive member 320 is disposed on the inner wall of the insulating upper cover 110. Figure 7 and Figure 8 As shown, the first conductive member 310 and the second conductive member 320 can both be disposed on the inner wall surface of the insulating upper cover 110 and are disposed opposite to the bending area 230 a.

[0137] In some possible implementations, the outer wall of at least one of the first conductive member 310 and the second conductive member 320 is flush with the inner wall of the insulating cover 110. The flushness of the first conductive member 310 and the inner wall can avoid an increased risk of interference with the display module 200 due to the thickness of the first conductive member. The flushness of the second conductive member 320 and the inner wall can increase the breakdown distance from the bending area 230a and reduce the risk of ESD interference in the bending area 230a. Figure 14 As shown, the insulating cover 110 includes a surrounding frame 1101 and a side frame 1102. In one embodiment, the outer wall surface of at least one of the first conductive member 310 and the second conductive member 320 may protrude from the inner wall surface of the insulating cover 110. The outer wall surface of at least one of the first conductive member 310 and the second conductive member 320 may be recessed into the inner wall surface of the insulating cover 110.

[0138] In one embodiment, a groove may be provided on the inner side of the frame 1101, and the first conductive member 310 may be provided in the corresponding groove, so that the outer wall surface of the first conductive member 310 on the Z-opposite side and the inner side surface 111 of the frame 1101 (the wall surface of the frame 1101 on the Z-opposite side, refer to Figure 14 In one embodiment, the groove may not be provided on the inner side surface 111 of the frame 1101, and the first conductive member 310 may be a metal layer sprayed or laminated on the inner side surface 111 of the frame 1101. However, since the first conductive member 310 is a metal layer and is relatively thin, it is structurally nearly flush with the inner side surface of the frame 1101, which also falls within the state of being flush as described in the embodiments of the present application.

[0139] In one embodiment, a groove may be provided on the inner side of the side frame 1102, and the second conductive member 320 may be provided in the corresponding groove, so that the outer wall surface of the second conductive member 320 on one side of the X direction and the inner side surface 111 of the side frame 1102 (the wall surface of the side frame 1102 on the X direction side, refer to Figure 14In one embodiment, the groove may not be provided on the inner side surface 111 of the side frame 1102, and the second conductive member 320 may be a metal layer sprayed or laminated on the inner side surface 111 of the side frame 1102. However, since the second conductive member 320 is a metal layer with a relatively thin thickness, it is structurally nearly flush with the inner side surface of the side frame 1102, which also falls within the "flat" state described in the embodiments of the present application.

[0140] In some possible implementations, see Figure 15 As shown, the grounding member may include a conductive middle frame 120, which has a bottom frame portion 1201 and a side portion 1202 connected to each other. The bottom frame portion 1201 and the side portion 1202 may be two parts, which are connected to each other by welding or gluing to form an integral structure; or, the conductive middle frame 120 is an integrated structure, and the bottom frame portion 1201 and the side portion 1202 may be two parts of the integrated structure, which are connected at the corners. The bottom frame portion 1201 is located on the back side of the display module 200, and the bottom frame portion 1201 may be located on the non-display side of the display module 200, that is, Figure 15 The bottom frame portion 1201 can fix and support the display module 200 on the back side of the display module 200. The side portion 1202 is located on the edge side of the display module 200. Figure 15 The X-direction side shown. Figure 15 The cross-sectional diagram only shows a partial area of ​​the electronic device. In the overall structure of the electronic device, the side portion 1202 can be located around the sides of the display module 200 to better protect the side of the display module 200.

[0141] In one embodiment, the side portion 1202 may be located outside the side frame 1102 of the insulating upper cover 110, that is, Figure 15 On the side opposite to the X direction shown in FIG, a portion of the side frame 1102 is fixed between the side portion 1202 and the display module 200 .

[0142] In one embodiment, the side portion 1202 may be an antenna radiator 150 of an electronic device. The side portion 1202 may be made entirely of metal. The antenna pattern structure formed by interrupting the side portion 1202 constitutes the antenna radiator 150 .

[0143] In one embodiment, the projection of the antenna radiator 150 along the shortest distance direction toward the display module 200 at least partially overlaps with the second conductive member 320. For example, see Figure 15 As shown, the straight line projection of the antenna radiator 150 along the X direction (refer to Figure 7The dotted arrow extending from the antenna radiator 150 to the X direction) at least partially overlaps with the second conductive member 320.

[0144] In one embodiment, see Figure 15 、 Figure 20 、 Figure 21 and Figure 22 As shown, Figure 20 A schematic top view of a conductive middle frame 120 is shown, in which the bottom frame portion 1201 and the side portions 1202 of the conductive middle frame 120 are partially connected to form an integral structure, such as at corners and in the middle. A fifth gap 1203 is provided between the side portions 1202 and the bottom frame portion 1201.

[0145] In one embodiment, see Figure 21 As shown, Figure 21 Shows a Figure 20 AA cross-sectional view in the figure, Figure 21 The bottom frame portion 1201 and the side portion 1202 are connected as an integral structure, or are an integrally molded structure. Figure 21 The portion of the middle side portion 1202 covered by the dotted line frame may be the antenna radiator 150 of the electronic device. Figure 7 、 Figure 9 、 Figure 10 、 Figure 11 and Figure 15 The structure shown in Figure 21 The structure in is similar to Figure 20 Section view at line AA.

[0146] In one embodiment, see Figure 22 As shown, Figure 22 Shows a Figure 20 BB cross-sectional view in the figure, Figure 22 The bottom frame portion 1201 and the side portion 1202 are separated structures, and a fifth gap 1203 can be set between the side portion 1202 and the bottom frame portion 1201.

[0147] In one embodiment, see Figure 20 As shown, one side portion 1202 of the conductive middle frame 120 can have three parts, namely a first side portion 1202a, a second side portion 1202b and a third side portion 1202c. The first side portion 1202a and the second side portion 1202b can be spaced apart, and the spaced apart position is connected to the fifth gap 1203; the second side portion 1202b and the third side portion 1202c can be spaced apart, and the spaced apart position is connected to the fifth gap 1203.

[0148] In one embodiment, in the embodiment of the present application, only the middle second side portion 1202b can be the antenna radiator 150, any one of the first side portion 1202a, the second side portion 1202b and the third side portion 1202c can be the antenna radiator 150, or any two of the first side portion 1202a, the second side portion 1202b and the third side portion 1202c can be combined to form the antenna radiator 150, or the first side portion 1202a, the second side portion 1202b and the third side portion 1202c can all be the antenna radiator 150.

[0149] In one embodiment, Figure 22 This is merely an example of an embodiment in which the fifth gap 1203 can be provided between the side portion 1202 and the bottom frame portion 1201. The fifth gap 1203 can be located on the right side of the side portion 1202. In one embodiment, the relative positions of the side portion 1202 and the bottom frame portion 1201 can be varied. For example, the bottom frame portion 1201 can be located below the side portion 1202, and the fifth gap 1203 can be located below the side portion 1202. Both fall within the scope of protection defined in this application.

[0150] In one embodiment, the electronic device described in the embodiment of the present application may be an electronic device with a folding function, such as a folding mobile phone, Figure 2 and Figure 8 As shown, the electronic device may include a rotating shaft 100c and at least two insulating upper covers 110, and the rotating shaft 100c may be located between the two insulating upper covers 110 ( Figure 8 The two insulating covers are shown for illustrative purposes only, and the hinge 100c between the two insulating covers is not shown. At least two insulating covers 110 are rotatably connected via the hinge 100c. The display module 200 may include a flexible screen, which is respectively connected to the at least two insulating covers 110. The entire flexible screen can be unfolded and attached to the two insulating covers 110. The flexible screen is configured to fold and unfold relative to the hinge 100c.

[0151] In some possible implementations, see Figure 16 As shown, one end of the bending region 230a can be connected to the circuit board 500 through a board-to-board connector 400 after bending. The board-to-board connector 400 can be used for precise interconnection between the display module and the main board.

[0152] In one embodiment, see Figure 16 As shown, the circuit board 500 can be electrically connected to the conductive middle frame 120 through the fourth conductive member 600 .

[0153] In some possible implementations, see Figure 17As shown, the flexible display layer 230 further includes an extension section 230c, which is a linear extension of the lower portion of the bending region 230a in the X direction. The extension section 230c can be integral with the bending region 230a. A display driver chip 700 is disposed on the side of the extension section 230c facing the conductive middle frame 120. The display driver chip 700 is used to provide display drive control signals to the flexible display layer 230.

[0154] This application also provides an implementation of an insulating cover, see Figure 7 and Figure 8 As shown, similar to the insulating cover scheme in the embodiment of the above-mentioned electronic device, the insulating cover 110 shown in this embodiment can be enclosed at the edge of the display module 200, and there is a first gap 130a between the insulating cover 110 and the display module 200, and the first gap 130a can be located on the display direction side of the display module 200.

[0155] The insulating cover 110 may include a frame 1101 and a side frame 1102. The frame 1101 is located on the display side of the display module 200 and is enclosed in a "mouth" shape. The side frame 1102 is located on the edge of the display module 200 and is bent and extended from the frame 1101 to the side opposite to the Z direction. In one embodiment, the frame 1101 and the side frame 1102 can be two independent frames, and the two independent frames are fixedly connected by gluing or snapping. In one embodiment, the frame 1101 and the side frame 1102 can be an integrated structure. The frame 1101 and the side frame 1102 can be two regions of the insulating cover 110. The XZ cross-sectional view of the insulating cover 110 can be an "L"-shaped structure.

[0156] In one embodiment, see Figure 7 As shown, the first conductive member 310 can be located on the side of the frame 1101 along the Z-direction opposite direction, and one end of the first conductive member 310 in the X-direction extends within the first gap 130a, and one end of the first conductive member 310 in the X-direction opposite direction protrudes from the left side of the first gap 130a to be close to the inner wall of the side frame 1102; the second conductive member 320 can be located on the X-direction side of the side frame 1102, and one end of the second conductive member 320 in the Z-direction extends to be close to the frame 1101 and electrically connected to the first conductive member 310. In this embodiment, one end of the first conductive member 310 in the X-direction opposite direction and one end of the second conductive member 320 in the Z-direction can be in contact with each other to achieve contact and electrical connection between the first conductive member 310 and the second conductive member 320. In one embodiment, an insulating interval can also be set between the first conductive member 310 and the second conductive member 320. For details, please refer to Figure 10 and Figure 11In the structure shown, the first conductive member 310 and the second conductive member 320 can be provided with an insulating interval through a third gap 130d or a second insulating member 130e. The specific structure and beneficial effects can be referred to the relevant statements in the above electronic device, which will not be repeated here.

[0157] In one embodiment, the first conductive member 310 can be made of a conductive material and have a relatively low resistivity. For example, the first conductive member 310 can be made of a material such as silver paste or copper. Small-particle silver powder is added to the silver paste, where small particle size refers to particles with a particle size in the micron range. The silver powder particles have a relatively high filling ratio in the silver paste, for example, in the range of 60% to 70%, or above 70%. The resistivity ρ1 of the first conductive member 310 can be less than 0.000001Ωm. The first conductive member 310 can be a silver paste layer printed on the inner wall surface of the insulating upper cover 110, or a copper layer fixed to the inner wall surface of the insulating upper cover 110 by a process such as gluing. The first conductive member 310 with a relatively low resistivity is more conducive to absorbing the electrostatic charge in the first gap 130a.

[0158] In one embodiment, the second conductive member 320 can be made of a conductive material, and the resistivity of the second conductive member 320 is relatively high, at least greater than the resistivity of the first conductive member 310. In one embodiment, the second conductive member 320 can be made of a high-resistivity conductive material, such as graphite or carbon fiber, and the resistivity ρ2 of the material can be greater than 0.00001 Ωm. The second conductive member 320 can be a metal layer formed by printing or etching the above-mentioned material and attached to the inner wall surface of the insulating cover 110.

[0159] In one embodiment, the resistivity of the second conductive member 320 may be less than 0.01 Ωm, so that the second conductive member 320 can transfer the electrostatic charge absorbed on the first conductive member 310 to the grounding member for grounding.

[0160] The insulating upper cover described in the embodiment of the present application can be used to be set on the display side of the electronic device and enclosed at the edge of the display module, and a first conductive member and a second conductive member are set on the inner side of the upper cover. By setting the second gap, the second conductive member and the grounding member such as the conductive middle frame will not be electrically connected at a lower voltage, thereby reducing the current generated by the grounding member due to antenna radiation energy (this current does not include the current generated when the second conductive member releases static electricity transmitted from the first gap to the grounding member) entering the second conductive member, which can slow down the metal loss of the first conductive member and the second conductive member, effectively reduce the impact of the conductive member on the antenna, and improve the performance of the antenna. In addition, when the second conductive member with a larger resistivity releases static electricity to the grounding member, a larger loop impedance can be formed, reducing the high-frequency component in the secondary discharge process and reducing the risk of soft failure. The embodiment of the present application prevents soft failure and other problems in electronic devices while ensuring that the antenna has better Over-the-Air Technology (OTA) performance.

[0161] This application also provides an electronic device, which is similar to the above-mentioned electronic devices. The electronic device can be a terminal product suspended metal structural part electrostatic discharge (such as a mobile phone camera module suspended decorative part) or an outdoor power supply product lightning residual voltage release structure. Figure 18 As shown, Figure 18 A simplified schematic diagram of a possible protection solution for a power supply product is shown, including: a first component 410, a grounding component 420, a first conductive component 310, and a second conductive component 320. The first component 410 can be a PCB trace, which is susceptible to lightning strikes. To ensure that the chip 440 can operate normally under lightning strikes, a protective device 430 is usually added to the circuit. At the same time, some products use a sharp protective structure such as the first conductive component 310 and the second conductive component 320 when processing the metal copper layer on the PCB board. When struck by lightning, the potential difference between the first component 410 and the grounding component 420 (which can be the ground where the power supply is placed) is sufficient to break through the first conductive component 310 and the second conductive component 320, using the sharp gap to trip the circuit and release the abnormally high voltage on the PCB trace.

[0162] In one embodiment, the first component 410, the grounding component 420, the first conductive component 310, and the second conductive component 320 can all be disposed within a metal structure 460, which can be a metal housing. The first component 410 can be connected to an interface 450, which can be at least one of an electrical interface and a communication interface to provide power and communication information to the chip 440.

[0163] In this embodiment, the second conductive member 320 can be made of a conductive material, and the resistivity of the second conductive member 320 is relatively high, at least greater than the resistivity of the first conductive member 310. In one embodiment, the second conductive member 320 can be made of a high-resistivity conductive material, such as graphite or carbon fiber, and the resistivity ρ2 of the material can be greater than 0.00001 Ωm. The second conductive member 320 can be a pointed structure attached to the inner wall surface of the first component 410 by a process such as printing or etching.

[0164] In this embodiment of the application, the second conductive member 320 is made of a high-resistivity conductive material, which can be a conductive material with a resistivity at least greater than that of the first conductive member 310. The first and second conductive members 310 and 320 are spaced apart to prevent direct electrical connection between the second conductive member 320 and a grounding element, such as the ground, at low voltages. By optimizing the material of the tip protection structure between the first member and the grounding element, primarily optimizing resistivity, and using a high-resistivity material for the second conductive member, high-frequency components during tip gap tripping are reduced, improving product performance during lightning strikes.

[0165] The above embodiments are only used to illustrate the technical solutions of the present application, rather than to limit them. Although the present application has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or make equivalent replacements for some of the technical features therein. These modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the various embodiments of the present application, and should all be included in the scope of protection of the present application.

Claims

1. An electronic device, characterized in that: include: Insulating cover plate for display module; an insulating upper cover, which is arranged on the edge of the insulating cover plate, and a first gap is formed between the edge of the insulating cover plate and the insulating upper cover; a grounding member, at least partially located on a non-display side of the display module; An electrostatic protection structure includes a first conductive member and a second conductive member, the resistivity of the second conductive member is greater than the resistivity of the first conductive member, and the first conductive member is at least partially arranged in the first gap, wherein an insulating space is set between the first conductive member and the second conductive member, and the second conductive member is electrically connected to the grounding member, or the first conductive member and the second conductive member are electrically connected, and an insulating space is set between the second conductive member and the grounding member.

2. The electronic device according to claim 1, wherein The resistivity of the second conductive member is greater than 0.00001Ωm.

3. The electronic device according to claim 1 or 2, characterized in that: The material of the second conductive member includes at least one of graphite, carbon fiber and silver paste.

4. The electronic device according to any one of claims 1 to 3, characterized in that: The resistivity of the first conductive member is less than 0.000001Ωm.

5. The electronic device according to any one of claims 1 to 4, characterized in that: The insulating spacing between the second conductive member and the grounding member includes: a second gap is provided between the second conductive member and the grounding member.

6. The electronic device according to any one of claims 1 to 5, characterized in that: The insulating spacing between the second conductive member and the grounding member includes: an insulating member is provided between the second conductive member and the grounding member.

7. The electronic device according to claim 6, wherein: The resistivity of the insulating member is greater than 1000 KΩm.

8. The electronic device according to claim 6 or 7, characterized in that: The material of the insulating member includes at least one of metal oxide, insulating glue and non-linear conductive glue.

9. The electronic device according to any one of claims 1 to 8, characterized in that: The display module includes a flexible circuit board having a bending area. The first conductive member is arranged on the inner side surface of the insulating upper cover. The inner side surface is a side surface of the insulating upper cover facing the bending area.

10. The electronic device according to claim 9, characterized in that Along the extending direction of the edge of the insulating cover plate, the length of the first conductive member is greater than or equal to the length of the bending area.

11. The electronic device according to claim 10, wherein: The width of the first conductive member is greater than or equal to 0.5 mm.

12. The electronic device according to any one of claims 9 to 11, characterized in that: The second conductive member is arranged on the inner side surface and extends along the edge of the insulating cover plate. The length of the second conductive member is greater than or equal to 0.5 mm.

13. The electronic device according to any one of claims 1 to 12, characterized in that: The display module includes a flexible circuit board having a bending area, and a spacing between the bending area and the conductive structure is less than or equal to 5 mm.

14. The electronic device according to any one of claims 1 to 13, characterized in that: The number of the first conductive members is at least two, the number of the second conductive members is greater than or equal to the number of the first conductive members, and each of the first conductive members and at least one of the second conductive members are electrically connected or arranged with an insulated interval.

15. The electronic device according to any one of claims 1 to 14, characterized in that: The number of the second conductive members is at least two, and the at least two second conductive members are arranged at intervals along the edge extension direction of the insulating cover plate. The resistivity of the at least two second conductive members is greater than the resistivity of the first conductive member.

16. The electronic device according to claim 15, characterized in that The at least two first conductive members are spaced apart along an edge extension direction of the insulating cover plate, and a spacing distance between two adjacent first conductive members is less than 2 mm.

17. The electronic device according to any one of claims 1 to 16, characterized in that: At least one of the first conductive member and the second conductive member is disposed on the inner wall of the insulating upper cover.

18. The electronic device according to any one of claims 1 to 17, characterized in that: The grounding member includes a conductive middle frame, which has a bottom frame portion and a side portion connected to each other. The bottom frame portion is located on the non-display side of the display module, and the side portion is located on the edge side of the display module. The side portion includes an antenna radiator.

19. The electronic device according to claim 18, wherein: A projection of the antenna radiator along the shortest distance direction toward the display module at least partially overlaps with the second conductive member.

20. The electronic device according to any one of claims 1 to 19, characterized in that: The insulating upper cover includes a surrounding frame and a side frame located on one side of the surrounding frame, and the side frame extends from the surrounding frame to the back side of the display module; The first conductive member is arranged on the inner wall of the frame, and the side frame includes a first wall and a second wall. The first wall is arranged opposite to the display module, and the second wall is opposite to or in contact with the grounding member. Part of the second conductive member is located on the first wall, and the other part is located on the second wall.

21. The electronic device according to any one of claims 1 to 10, characterized in that: The electronic device includes a rotating shaft, the number of the insulating upper covers is at least two, the display module includes a flexible screen, and at least two of the insulating upper covers are unfolded or folded by the rotating shaft; The first gap is provided between the flexible screen and the at least two insulating upper covers; The electrostatic protection structure is provided on the at least two insulating upper covers.

22. An insulating upper cover, characterized in that: The insulating cover is used to enclose the edge of the display module, and the insulating cover includes a frame and a side frame located on one side of the frame, the side frame extends from the outer edge of the frame, and the side frame and the frame form a bent structure; A first conductive member is provided on the inner wall of the frame, and a second conductive member is provided on the inner wall of the side frame. The resistivity of the second conductive member is greater than that of the first conductive member. The first conductive member and the second conductive member are electrically connected or insulated from each other.

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