Electronic device, control method and device

Abstract

This application discloses an electronic device, control method, and apparatus, belonging to the field of device technology. The electronic device may include: a flexible display, an elastic fluid reservoir, and a first electromagnet. The elastic fluid reservoir is disposed in the folding region of the flexible display and is filled with magnetic fluid; the first electromagnet is disposed opposite the elastic fluid reservoir. When the flexible display is in the unfolded state, the first electromagnet is energized, and the magnetic fluid, under the influence of the magnetic field generated by the first electromagnet, converges to an area near the first electromagnet to support the folding region.

Description

Technical Field

[0001] The present application belongs to the field of equipment technology, and specifically relates to an electronic device, a control method and a device. Background Art

[0002] With the development of organic light-emitting diode (OLED) materials, flexible display screens are increasingly used in electronic devices, and electronic devices equipped with flexible display screens can be called foldable devices.

[0003] As you can understand, flexible displays are made of multiple stacked film layers. As a result, when the display is unfolded and folded, the different film layers move relative to each other, causing some layers to arch, resulting in creases in the unfolded display. Therefore, optimizing the creases in flexible displays is a pressing issue. Summary of the Invention

[0004] The purpose of the embodiments of the present application is to provide an electronic device, a control method and an apparatus that can solve the problem of how to optimize the crease of a flexible display screen.

[0005] In a first aspect, embodiments of the present application provide an electronic device that may include: a flexible display, an elastic reservoir, and a first electromagnet. The elastic reservoir is disposed in the folding region of the flexible display and is filled with a magnetic fluid. The first electromagnet is disposed opposite the elastic reservoir, on the side of the reservoir facing away from the flexible display. When the flexible display is in the unfolded state and the first electromagnet is energized, the magnetic fluid, under the influence of the magnetic field generated by the first electromagnet, converges to an area near the first electromagnet, thereby supporting the folding region.

[0006] In a second aspect, an embodiment of the present application provides a control method, which is applied to the electronic device of the first aspect above, and the method includes: when the flexible display screen in the electronic device is in an unfolded state, energizing the first electromagnet in the electronic device, so that the magnetic fluid contained in the elastic liquid storage bag of the electronic device is converged to the area close to the first electromagnet under the action of the magnetic field generated by the first electromagnet, so as to support the folding area of the flexible display screen.

[0007] In a third aspect, an embodiment of the present application provides a control device, which may include: a detection module and a control module; the detection module is used to detect the state of a flexible display screen in an electronic device; the control module is used to energize a first electromagnet in the electronic device when the detection module detects that the flexible display screen is in an unfolded state, so that the magnetic fluid contained in the elastic liquid storage bag of the electronic device is converged to an area close to the first electromagnet under the action of the magnetic field generated by the first electromagnet, so as to support the folding area of the flexible display screen.

[0008] In a fourth aspect, an embodiment of the present application provides an electronic device comprising a processor and a memory, wherein the memory stores programs or instructions that can be run on the processor, and when the programs or instructions are executed by the processor, the steps of the method described in the second aspect are implemented.

[0009] In a fifth aspect, an embodiment of the present application provides a readable storage medium, on which a program or instruction is stored. When the program or instruction is executed by a processor, the steps of the method described in the second aspect are implemented.

[0010] In a sixth aspect, an embodiment of the present application provides a chip, which includes a processor and a communication interface, the communication interface and the processor are coupled, and the processor is used to run programs or instructions to implement the method described in the second aspect.

[0011] In a seventh aspect, an embodiment of the present application provides a computer program product, which is stored in a storage medium and executed by at least one processor to implement the method described in the second aspect.

[0012] In an embodiment of the present application, an electronic device includes a flexible display, an elastic reservoir, and a first electromagnet. The elastic reservoir is disposed in the folding region of the flexible display and is filled with a magnetic fluid. The first electromagnet is disposed opposite the elastic reservoir, on the side of the elastic reservoir facing away from the flexible display. When the flexible display is in an unfolded state, the first electromagnet is energized, and the magnetic fluid, under the influence of the magnetic field generated by the first electromagnet, converges to an area near the first electromagnet, thereby supporting the folding region. With this solution, since the elastic reservoir is disposed in the folding region of the flexible display and the first electromagnet is disposed opposite the elastic reservoir, when the flexible display is in an unfolded state, the first electromagnet can be energized to generate a magnetic field, thereby controlling the magnetic fluid in the elastic reservoir to converge toward the first electromagnet under the influence of the magnetic field, thereby providing support for the folding region, particularly the region corresponding to the folding centerline. This can reduce the visibility of the crease of the flexible display, thereby optimizing the crease of the flexible display. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 This is one of the structural diagrams of an electronic device provided in an embodiment of the present application;

[0014] Figure 2 This is one of the schematic diagrams of the connection between a flexible display screen and an elastic liquid storage capsule in an electronic device provided in an embodiment of the present application;

[0015] Figure 3 This is the second schematic diagram of the connection between a flexible display screen and an elastic liquid storage capsule in an electronic device provided in an embodiment of the present application;

[0016] Figure 4 This is one of the structural schematic diagrams of a driving mechanism in an electronic device according to an embodiment of the present application;

[0017] Figure 5 This is a second structural diagram of a driving mechanism in an electronic device according to an embodiment of the present application;

[0018] Figure 6 This is a second structural diagram of an electronic device provided in an embodiment of the present application;

[0019] Figure 7 This is a schematic diagram of the connection between two frames and two second electromagnets in an electronic device provided by an embodiment of the present application;

[0020] Figure 8 This is a third structural diagram of an electronic device provided in an embodiment of the present application;

[0021] Figure 9 This is a fourth structural diagram of an electronic device provided in an embodiment of the present application;

[0022] Figure 10 This is a flow chart of a control method provided in an embodiment of the present application;

[0023] Figure 11 is a structural diagram of a control device provided in an embodiment of the present application;

[0024] Figure 12 This is a fifth structural diagram of an electronic device provided in an embodiment of the present application;

[0025] Figure 13 This is the sixth structural diagram of an electronic device provided in an embodiment of the present application;

[0026] Attachment Figures 1 to 9 The reference numerals shown are as follows:

[0027] 10. Electronic device; 11. Flexible display screen; 111. Folding area; 112. Folding center line; 12. Elastic liquid storage capsule; 13. First electromagnet; 14. Magnetic fluid; 15. First direction; 16. Driving mechanism; 17. Rotating shaft assembly; 18. Swing arm assembly; 181. Swing arm; 182. Door panel; 183. Connecting arm; 171. Rotating shaft bracket; 172. First rotating shaft cover; 173. Second rotating shaft cover; 19. Second electromagnet; 20. Frame; 21. Sub-screen; 22. Back cover; 23. Synchronous gear set; 24. Fixing part. DETAILED DESCRIPTION

[0028] The following will be combined with the accompanying drawings in the embodiments of the present application to clearly describe the technical solutions in the embodiments of the present application. Obviously, the embodiments described are part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field are within the scope of protection of this application.

[0029] The terms "first," "second," and the like in the specification and claims of this application are used to distinguish similar objects, and are not used to describe a specific order or precedence. It should be understood that the terms used in this manner are interchangeable where appropriate, so that the embodiments of this application can be implemented in an order other than that illustrated or described herein, and that the objects distinguished by "first," "second," and the like are generally of the same type, and do not limit the number of objects; for example, the first object can be one or more. In addition, the term "and / or" in the specification and claims refers to at least one of the connected objects, and the character " / " generally indicates that the objects connected are in an "or" relationship.

[0030] The following is an illustrative description of the relevant terms in the embodiments of the present application.

[0031] Axis: Generally refers to a straight line that divides a plane or solid into symmetrical parts. In other words, an axis is a straight line around which an object or three-dimensional figure rotates or can be imagined to rotate. An axis is also called the central axis or sometimes the center line.

[0032] For example, the straight line where the axis of symmetry of a cuboid lies can be called the axis of the cuboid.

[0033] Magnetic fluid, also known as magnetic liquid, ferrofluid, or magnetic fluid, is a liquid that can be subjected to forces in a magnetic field. When placed in a magnetic field, a magnetic fluid exhibits both the fluidity of a liquid and the magnetic properties of a solid magnetic material. Magnetic fluid is a stable colloidal liquid composed of a mixture of magnetic solid particles with a diameter of nanometers (less than 10 nanometers), a carrier fluid (also called a medium), and a surfactant. This fluid exhibits no magnetic attraction when static, but exhibits magnetism when subjected to an external magnetic field.

[0034] The electronic device, control method, device and readable storage medium provided in the embodiments of the present application are described in detail below with reference to the accompanying drawings through specific embodiments and their application scenarios.

[0035] Due to the material properties of current flexible displays, it is impossible to completely avoid the formation of creases on flexible displays. In other words, current folding technology can only make the creases on flexible displays as inconspicuous as possible, but there is no way to completely eliminate them. The reasons why creases on flexible displays cannot be completely eliminated are:

[0036] 1. In order to facilitate the folding of the flexible display screen, an accommodation space must be reserved in the middle of the inner side of the folding product so that the folding area of the flexible display screen is located in the accommodation space after folding.

[0037] 2. Due to the existence of assembly tolerance and production tolerance of the hinge mechanism (i.e., the driving mechanism), a certain gap will be reserved between the hinge mechanism and the flexible display screen to avoid the top printing problem caused by the hinge mechanism squeezing and raising the folding area.

[0038] 3. When the electronic device is unfolded, the flexible display screen of the electronic device is in the unfolded state. The folding area of the flexible display screen is suspended due to the existence of accommodation space and gaps, resulting in the existence and aggravation of creases in the folding area due to insufficient support. Furthermore, the existence of the crease leads to a poor pressing experience in the folding area.

[0039] Based on the above discussion, it can be seen that how to optimize the crease of flexible displays is an urgent problem to be solved.

[0040] The electronic device provided in the embodiment of the present application can avoid the generation of creases when the flexible display screen is in the unfolded state. In the electronic device provided in the embodiment of the present application, an elastic liquid storage capsule can be provided in the folding area of the flexible display screen, and the elastic liquid storage capsule is filled with magnetic fluid; and an electromagnet (i.e., the first electromagnet in the embodiment of the present application) is provided on the side of the elastic liquid storage capsule facing away from the flexible display screen, so that when the flexible display screen is in the unfolded state, if the electromagnet is energized, the electromagnet can generate a magnetic field, so that the magnetic fluid in the elastic liquid storage capsule converges to the area close to the electromagnet, thereby achieving support for the folding area. In this way, the creases of the flexible display screen can be optimized. It can be understood that the dimension of the electromagnet in the direction perpendicular to the folding centerline should be smaller than the dimension of the folding area in the direction perpendicular to the folding centerline.

[0041] Specifically, when the flexible display is in the unfolded state, if the electromagnet is energized, the electromagnet will be energized to attract the magnetic fluid to the middle position, thereby filling the gap between the screen and the driving mechanism through the magnetic fluid, and supporting the concave area of the flexible display (that is, the area near the folding center line), thereby reducing the screen crease and improving the pressing experience.

[0042] Furthermore, to prevent the crease of the flexible display from deepening when it is folded, the electronic device provided in the embodiment of the present application may further include two second electromagnets. These two second electromagnets are disposed on the side of the elastic liquid reservoir facing away from the flexible display. The two second electromagnets are symmetrically disposed relative to the folding centerline, and the projection areas of the two second electromagnets on the flexible display are within the folding area. Thus, when the flexible display is folded, if the two second electromagnets are energized, the magnetic fluid can be drawn to an area near the two second electromagnets under the influence of the magnetic field generated by the two second electromagnets, so that the elastic liquid reservoir encloses a space within the folding area, thereby preventing the crease of the flexible display from deepening when it is folded.

[0043] Furthermore, when the flexible display is in a folded state, if the two second electromagnets are energized, the magnetic fluid converges toward the area close to the two second electromagnets, so that the folding area can be subjected to a pulling force directed toward the two second electromagnets, that is, the magnetic fluid can pull the flexible display toward the area where the two second electromagnets are located, thereby preventing the folding angle of the flexible display from being too small, thereby preventing the crease of the flexible display from deepening.

[0044] An embodiment of the present application provides an electronic device, Figure 1 A possible structural diagram of the electronic device 10 provided in an embodiment of the present application is shown in FIG. Figure 1 As shown, the electronic device 10 provided in the embodiment of the present application may include: a flexible display screen 11 , an elastic liquid storage capsule 12 and a first electromagnet 13 .

[0045] The elastic liquid storage capsule 12 is arranged in the folding area 111 of the flexible display screen 11, and the elastic liquid storage capsule 12 is filled with magnetic fluid 14; the first electromagnet 13 is arranged opposite to the elastic liquid storage capsule 12, and the first electromagnet 13 is located on the side of the elastic liquid storage capsule 12 facing away from the flexible display screen 11.

[0046] When the flexible display screen 11 is in the unfolded state, the first electromagnet 13 is energized, and the magnetic fluid 14 is gathered to the area close to the first electromagnet 13 under the action of the magnetic field generated by the first electromagnet 13 to support the folding area 111.

[0047] Alternatively, as Figure 3 As shown, the first electromagnet 13 is symmetrical with respect to the folding centerline 112 of the flexible display 11. It can be seen that the axis of the projection area of the first electromagnet 13 on the flexible display 11 coincides with the folding centerline 112 of the folding area 111. The phrase "the axis of the projection area of the first electromagnet 13 on the flexible display 11 coincides with the folding centerline 112 of the folding area 111" can be understood as: the axis is aligned with the folding centerline.

[0048] In this way, the first electromagnet 13 is symmetrical with respect to the folding center line 112 of the flexible display screen 11, thereby ensuring that the magnetic fluid converges to the folding area when the first electromagnet is energized, thereby providing support for the folding area.

[0049] Optionally, combined Figure 2 and Figure 3 As shown, the size of the first electromagnet 13 along the first direction 15 is smaller than the size of the folding area 111 of the flexible display 11 along the first direction 15. The first direction 15 is parallel to the folding area 111 of the flexible display 11, and the first direction 15 is perpendicular to the folding centerline 112 of the flexible display 11.

[0050] In this way, the size of the first electromagnet along the first direction is smaller than the size of the folding area along the first direction, which can ensure that when the first electromagnet is energized, the magnetic fluid is subjected to a magnetic force directed toward the folding center line, so that the magnetic fluid in the elastic liquid storage capsule converges to the middle of the liquid storage capsule as much as possible, so that the magnetic fluid near the folding center line is the largest, thereby being able to support the folding area of the flexible screen, especially the area corresponding to the center of the folding line, that is, the area with the greatest degree of folding.

[0051] Optionally, the first electromagnet may be a long strip-shaped electromagnet, and the first electromagnet extends along a folding center line of the folding area.

[0052] Alternatively, the first electromagnet may be arranged on an axis where the elastic liquid storage capsule coincides with the folding centerline. Alternatively, the first electromagnet may be arranged on other components of the electronic device, for example, the first electromagnet may be arranged on a component in the electronic device that is arranged opposite to the elastic liquid storage capsule.

[0053] Optionally, the area of the elastic liquid storage bag 12 in a plane parallel to the folding region 111 may be greater than or equal to the area of the folding region 111 .

[0054] For example, Figure 3 As shown, the size of the elastic liquid storage bag 12 along the first direction 15 is larger than the size of the folding area 111 along the first direction 15. Figure 3 As shown, the size of the elastic reservoir 12 along the folding centerline 112 is equal to the size of the folding region 111 along the folding centerline 112. This ensures that the area of the elastic reservoir 12 in a plane parallel to the folding region 111 is greater than or equal to the area of the folding region 111.

[0055] Optionally, the elastic liquid storage capsule 12 is made of an elastic film, that is, the size and shape of the elastic liquid storage capsule 12 are variable.

[0056] Alternatively, as Figure 1As shown, the electronic device 10 may further include two frames 20. The two frames 20 are located on both sides of the folding center line 112 and are respectively connected to the surface of the flexible display screen 11 facing the elastic liquid storage capsule 12.

[0057] Alternatively, as Figure 1 As shown, the electronic device 10 may further include a drive mechanism 16, which can be used to drive the flexible display screen 11 to fold and unfold. The drive mechanism 16 can be disposed on a side of the elastic liquid reservoir 12 facing away from the flexible display screen 11, with the drive mechanism 16 facing the folding region 111 of the flexible display screen 11; wherein the first electromagnet 13 is disposed between the drive mechanism 16 and the folding region 111 of the flexible display screen 11.

[0058] Optionally, the projection area of the driving mechanism on the flexible display screen may overlap with the folding area of the flexible display screen; for example, the folding area may be within the projection area.

[0059] In the embodiment of the present application, the axis of the first electromagnet may coincide with the axis of the driving mechanism.

[0060] In the embodiment of the present application, the driving mechanism can be connected to the flexible display screen. Specifically, the driving mechanism can be connected to the flexible display screen through two frames, so that when the driving mechanism is working, the driving mechanism can drive the two frames to rotate, thereby driving the flexible display screen to fold or unfold.

[0061] Alternatively, as Figure 4 As shown, the first electromagnet 13 may be disposed on the axis of the drive mechanism 16 .

[0062] In this way, since the first electromagnet can be arranged on the driving mechanism arranged opposite to the elastic liquid storage capsule, the connection reliability of the first electromagnet can be improved, and the first electromagnet can be prevented from falling off during the unfolding or folding process of the flexible display screen.

[0063] Optionally, the driving mechanism may be a hinge mechanism.

[0064] Alternatively, as Figure 1 and Figure 5 As shown, the driving mechanism 16 may include: a rotating shaft assembly 17 and two swing arm assemblies 18, and the two swing arm assemblies 18 are symmetrically arranged on the rotating shaft assembly 17. The first electromagnet 13 is arranged on the rotating shaft assembly 17.

[0065] It can be understood that the hinge assembly is parallel to the folding center line of the flexible display screen.

[0066] In the embodiment of the present application, the two swing arm assemblies are respectively connected to one of the two frames. Thus, when the shaft assembly rotates, the two swing arm assemblies can be driven to swing, thereby rotating the two frames, and further driving the flexible display screen to unfold or fold.

[0067] In the embodiment of the present application, the position of the hinge assembly in the electronic device can remain unchanged.

[0068] Because the first electromagnet can be mounted on the hinge assembly, the reliability of the first electromagnet's connection is improved, preventing it from falling off during the unfolding or folding process of the flexible display. Furthermore, the relative position of the first electromagnet to the folding centerline remains essentially unchanged. Thus, when the flexible display is unfolded, the elastic reservoir provides reliable support for the recessed area (i.e., the folding area) of the flexible display.

[0069] Alternatively, as Figure 1 and Figure 5 As shown, the shaft assembly 17 may include a shaft support 171, a first shaft cover 172, and a second shaft cover 173. The first shaft cover 172 and the second shaft cover 173 are disposed opposite each other, with the first shaft cover 172 facing the elastic fluid reservoir 12. The shaft support 171 is disposed between the first and second shaft covers 172, 173. Two swing arm assemblies 18 are symmetrically disposed on the shaft support 171. Specifically, the first electromagnet 13 is disposed on the surface of the first shaft cover 172 facing the elastic fluid reservoir 12.

[0070] Optionally, the first hinge cover and the second hinge cover remain stationary during the unfolding and folding process of the flexible display screen.

[0071] In the embodiment of the present application, the first rotating shaft cover and the second rotating shaft cover are used to protect the rotating shaft bracket.

[0072] Alternatively, as Figure 5 As shown, the first electromagnet 13 can be fixed on the surface of the first rotating shaft cover 172 facing the elastic liquid storage bag 12 through the fixing member 24 .

[0073] Optionally, the fixing member may be a screw, a pin, or the like.

[0074] Optionally, a groove for accommodating the first electromagnet may be provided on the surface of the first rotating shaft cover facing the elastic liquid storage bag, and the first electromagnet may be installed in the groove via a fixing member.

[0075] In this way, since the first electromagnet can be set on the surface of the driving mechanism closest to the elastic liquid storage bag (that is, the direction of the first rotating shaft cover), it can ensure that more magnetic fluid is within the magnetic field generated by the first electromagnet, thereby ensuring that as much magnetic fluid as possible can be gathered near the folding center line of the flexible display screen, thereby achieving reliable support for the folding area.

[0076] Optionally, each swing arm assembly may include at least two swing arms, and the at least two swing arms are distributed along the axis of the rotating shaft assembly.

[0077] Alternatively, as Figure 1 and Figure 5 As shown, each swing arm assembly 18 may further include at least two door panels 182 , the number of the at least two door panels 182 being the same as the at least two swing arms 181 . Each swing arm 181 is in transmission connection with one door panel 182 .

[0078] Alternatively, as Figure 1 and Figure 5 As shown, each swing arm assembly 18 may further include at least two connecting arms 183 , and one swing arm 181 in each swing arm assembly 18 is connected to the rotating shaft bracket 171 via one connecting arm 183 .

[0079] Optionally, when the flexible display is in a folded state, the first electromagnet can be powered off so that the magnetic fluid is no longer subjected to magnetic force, and the flexible display can squeeze the magnetic fluid to flow to an area away from the folding center line, so that the elastic liquid storage capsule makes room for the folding area of the flexible display.

[0080] Optionally, in order to avoid the force (i.e., squeezing force) between the flexible display screen and the magnetic fluid, as Figure 1 and Figure 6 As shown, the electronic device 10 provided in the embodiment of the present application may further include: two second electromagnets 19 .

[0081] The two second electromagnets 19 can be arranged on a side of the elastic liquid storage capsule 12 facing away from the flexible display screen 11 , and the two second electromagnets 19 are symmetrically arranged on both sides of the folding center line 112 of the flexible display screen.

[0082] Among them, when the flexible display screen 11 is in a folded state, the two second electromagnets 19 are energized, and the magnetic fluid 14 is gathered to the areas close to the two second electromagnets 19 under the action of the magnetic field generated by the two second electromagnets 19, so that the elastic liquid storage capsule 12 encloses the accommodating space of the folding area 111.

[0083] It should be noted that no matter the flexible display screen is in a folded state or an unfolded state, the projection area of each second electromagnet on the flexible display screen is within the folding area.

[0084] Optionally, the projection area of the second electromagnet on the flexible display screen is entirely or partially within the folding area. Specifically, the projection area of the second electromagnet on the flexible display screen can be located at an edge area of the folding area.

[0085] Optionally, the projection area of the second electromagnet on the flexible display screen may exceed the folding area.

[0086] Optionally, there is a gap between the second electromagnet and the liquid storage capsule. In this way, friction between the second electromagnet and the liquid storage capsule can be avoided to shorten the service life of the liquid storage capsule.

[0087] In an embodiment of the present application, when the flexible display screen is in an unfolded state, the two second electromagnets are in the same plane; when the flexible display screen is in a folded state, the two second electromagnets are in a relative state, that is, the two second electromagnets are symmetrically arranged relative to the flexible display screen, that is, the two second electromagnets are parallel.

[0088] Alternatively, as Figure 6 As shown, the two second electromagnets 19 are respectively disposed in areas of the two frames 20 near the folding centerline 112. Thus, when the flexible display is in the folded state, the two second electromagnets avoid the middle area of the elastic liquid reservoir (i.e., the area of the liquid reservoir near the folding centerline of the flexible display), and the projection area of each second electromagnet on the flexible display is located at the edge of the folding area. Therefore, when the two second electromagnets are energized, they can attract the magnetic fluid in the elastic liquid reservoir to converge toward the edge area of the elastic liquid reservoir.

[0089] Optionally, a groove is provided on each of the two frames facing the flexible display screen, and the two second electromagnets are respectively provided in the grooves of the two frames. In this way, the two second electromagnets can be installed without increasing the size of the electronic device.

[0090] Combined with the above Figure 1 ,like Figure 7 As shown, Figure 7 FIG. 1 is a schematic diagram of the assembly of two frames 20 and two second electromagnets 19. Figure 7 (a) is a schematic diagram of the assembly of one frame 20 and a second electromagnet 19 in the two frames 20. Figure 7 (b) is a schematic diagram of the assembly of the other frame 20 and the second electromagnet 19 in the two frames 20. Figure 7 It can be seen that the two second electromagnets 19 are respectively installed on the edges of the two frames 20 .

[0091] Alternatively, as Figure 7 As shown, Figure 7 The frame 20 shown in (a) can be the left frame of the electronic device. Figure 7 The housing 20 shown in (b) may be the right housing of the electronic device.

[0092] It should be noted that the working process of the first electromagnet and the two second electromagnets is: when the flexible display screen is in the folded state, the two second electromagnets are energized and the first electromagnet is not energized; when the flexible display screen is in the unfolded state, the two second electromagnets are not energized and the first electromagnet is energized.

[0093] Alternatively, as Figure 1 and Figure 6 As shown, the electronic device 10 may further include at least one of the following: a back cover 22 and a sub-screen 21; wherein the back cover 22 may be arranged on the surface of one of the two frames 20 facing away from the flexible display screen 11, and the sub-screen 21 may be arranged on the surface of the other of the two frames 20 facing away from the flexible display screen 11.

[0094] Alternatively, as Figure 8 and Figure 9 As shown, the electronic device 10 may further include a synchronous gear set 23 , which is in transmission connection with the driving assembly and is used to control the synchronous rotation of the two frames 20 .

[0095] It should be noted that the synchronous gear set can be arranged between the first rotating shaft cover and the second rotating shaft cover, and the synchronous gear set is arranged in the axial direction of the rotating shaft bracket.

[0096] In this way, the two second electromagnets are symmetrically positioned on either side of the folding centerline, and their projections on the flexible display screen fall within the folding area. Consequently, when the two second electromagnets are energized, the magnetic fluid, under the influence of the magnetic field generated by the two second electromagnets, automatically converges from the center of the elastic reservoir toward the two side areas. Therefore, compared to a solution where the magnetic fluid converges toward the two side areas of the reservoir under the pressure of the flexible display screen, controlling the magnetic fluid to converge toward the two side areas of the reservoir through the magnetic field generated by the two second electromagnets can further prevent the creases in the flexible display screen from deepening.

[0097] Furthermore, when the flexible display is in a folded state, if the two second electromagnets are energized, the magnetic fluid converges toward the area close to the two second electromagnets, so that the folding area can be subjected to a pulling force directed toward the two second electromagnets, that is, the magnetic fluid can pull the flexible display toward the area where the two second electromagnets are located, thereby preventing the folding angle of the flexible display from being too small, thereby preventing the crease of the flexible display from deepening.

[0098] An embodiment of the present application further provides a control method, which can be applied to the above-mentioned electronic device. Figure 10A possible flow chart of a control method provided in an embodiment of the present application is shown in FIG. Figure 10 As shown, the control method may include the following steps 101 and 102. The following description will be made by taking an electronic device executing the method as an example.

[0099] Step 101: The electronic device detects a state of a flexible display screen in the electronic device.

[0100] Optionally, the state of the flexible display screen may include a folded state and an unfolded state.

[0101] When the flexible display is in a folded state, the target angle between the screen areas on both sides of the folding centerline of the flexible display is less than or equal to a preset angle; when the flexible display is in an unfolded state, the target angle is greater than the preset angle. For example, the preset angle can be 0° or an angle close to 0°.

[0102] Optionally, if the electronic device detects that the flexible screen is in the unfolded state, the electronic device may execute step 102 described below.

[0103] Step 102: When the flexible display screen is in the unfolded state, the electronic device energizes the first electromagnet in the electronic device, so that the magnetic fluid contained in the elastic liquid storage bag of the electronic device converges to the area close to the first electromagnet under the action of the magnetic field generated by the first electromagnet to support the folding area of the flexible display screen.

[0104] Optionally, the electronic device may energize the first electromagnet according to the size of the target angle.

[0105] Specifically, the larger the target angle is, the larger the current passing through the first electromagnet is. That is, the target angle is positively correlated with the current passing through the first electromagnet.

[0106] Optionally, the above step 102 can be specifically implemented through the following step 102a.

[0107] Step 102a: When the flexible display screen of the electronic device is in the unfolded state, the electronic device energizes a first electromagnet in the electronic device. This causes the magnetic fluid contained in the elastic reservoir of the electronic device to converge toward the area near the first electromagnet under the influence of the magnetic field generated by the first electromagnet, thereby filling the gap between the folding area and the drive mechanism of the electronic device, thereby supporting the folding area. Because the magnetic fluid can fill the gap between the folding area and the drive mechanism, it can effectively support the folding area, thereby reducing and optimizing the crease of the flexible display screen.

[0108] Thus, when the flexible display is unfolded, the first electromagnet can be energized to generate a magnetic field. This magnetic field directs the magnetic fluid in the elastic reservoir toward the first electromagnet, thereby supporting the folding area, particularly the area corresponding to the fold centerline. This reduces the apparent crease of the flexible display and optimizes the crease.

[0109] Optionally, after the above step 101, the control method provided in the embodiment of the present application may further include the following step 103.

[0110] Step 103: When the flexible display screen is in a folded state, the electronic device energizes the two second electromagnets in the electronic device, so that the magnetic fluid converges to the areas close to the two second electromagnets under the action of the magnetic field generated by the two second electromagnets, so that the elastic liquid storage capsule encloses a accommodating space in the folded area.

[0111] It should be noted that the working process of the first electromagnet and the two second electromagnets is: when the flexible display screen is in the folded state, the two second electromagnets are energized and the first electromagnet is not energized; when the flexible display screen is in the unfolded state, the two second electromagnets are not energized and the first electromagnet is energized.

[0112] In this way, when the flexible display is in a folded state, since the two second electromagnets can be energized, the magnetic fluid can automatically converge from the middle area of the elastic liquid storage capsule to the two side areas under the action of the magnetic field generated by the two second electromagnets. Therefore, compared with the solution in which the magnetic fluid converges to the two side areas of the liquid storage capsule under the squeezing of the flexible display, controlling the magnetic fluid to converge to the two side areas of the liquid storage capsule through the magnetic field generated by the two second electromagnets can further avoid the deepening of the creases of the flexible display.

[0113] Furthermore, when the two second magnetic fluids are energized, the folding area can be subjected to a pulling force directed toward the two second electromagnets, that is, the magnetic fluid can pull the flexible display toward the area where the two second electromagnets are located, thereby preventing the folding angle of the flexible display from being too small, thereby preventing the deepening of the crease of the flexible display from occurring.

[0114] The control method provided in the embodiment of the present application can be executed by a control device. In the embodiment of the present application, the control device provided in the embodiment of the present application is described by taking the control device executing the control method as an example.

[0115] The embodiment of the present application also provides a control device, Figure 11 A possible structural diagram of the control device provided in the embodiment of the present application is shown in FIG. Figure 11 As shown, the control device 1000 may include: a detection module 1001 and a control module 1002 .

[0116] The detection module 1001 is used to detect the status of the flexible display screen in the electronic device;

[0117] The control module 1002 is used to energize the first electromagnet in the electronic device when the detection module 1001 detects that the flexible display is in the unfolded state, so that the magnetic fluid contained in the elastic liquid storage bag of the electronic device converges to the area close to the first electromagnet under the action of the magnetic field generated by the first electromagnet, so as to support the folding area of the flexible display.

[0118] In one possible embodiment, the control module 1002 is specifically used to energize the first electromagnet when the flexible display screen is in the unfolded state, so that the magnetic fluid converges to the area close to the first electromagnet under the action of the magnetic field generated by the first electromagnet to fill the gap between the folding area and the driving mechanism of the electronic device, thereby supporting the folding area.

[0119] In one possible embodiment, the control module 1002 can also be used to energize the two second electromagnets in the electronic device when the detection module 1001 detects that the flexible display screen is in a folded state, so that the magnetic fluid converges to the area close to the two second electromagnets under the action of the magnetic field generated by the two second electromagnets, so that the elastic liquid storage bag encloses a accommodating space in the folding area.

[0120] Thus, when the flexible display is unfolded, the first electromagnet can be energized to generate a magnetic field. This magnetic field directs the magnetic fluid in the elastic reservoir toward the first electromagnet, thereby supporting the folding area, particularly the area corresponding to the fold centerline. This reduces the apparent crease of the flexible display and optimizes the crease.

[0121] The control device in the embodiment of the present application can be an electronic device or a component in the electronic device, such as an integrated circuit or a chip. The electronic device can be a terminal or other device other than a terminal. For example, the electronic device can be a mobile phone, a tablet computer, a laptop computer, a PDA, an in-vehicle electronic device, a mobile Internet device (MID), an augmented reality (AR) / virtual reality (VR) device, a robot, a wearable device, an ultra-mobile personal computer (UMPC), a netbook or a personal digital assistant (PDA), etc. It can also be a server, a network attached storage (NAS), a personal computer (PC), a television (TV), a teller machine or a self-service machine, etc., and the embodiment of the present application does not specifically limit it.

[0122] The control device in the embodiment of the present application may be a device having an operating system. The operating system may be an Android operating system, an iOS operating system, or other possible operating systems, which are not specifically limited in the embodiment of the present application.

[0123] The control device provided in the embodiment of the present application can implement each process implemented in the method embodiment 10. To avoid repetition, they will not be described here.

[0124] Alternatively, as Figure 12 As shown, an embodiment of the present application also provides an electronic device 1200, including a processor 1201 and a memory 1202, wherein the memory 1202 stores a program or instruction that can be run on the processor 1201, and when the program or instruction is executed by the processor 1201, the various steps of the above-mentioned control method embodiment are implemented and the same technical effect can be achieved. To avoid repetition, it will not be repeated here.

[0125] It should be noted that the electronic devices in the embodiments of the present application include the mobile electronic devices and non-mobile electronic devices mentioned above.

[0126] Figure 13 A schematic diagram of the hardware structure of an electronic device implementing an embodiment of the present application.

[0127] The electronic device 1300 includes but is not limited to: a radio frequency unit 1301, a network module 1302, an audio output unit 1303, an input unit 1304, a sensor 1305, a display unit 1306, a user input unit 1307, an interface unit 1308, a memory 1309 and at least some of the components of the processor 1310.

[0128] Those skilled in the art will understand that the terminal 1300 may also include a power supply (such as a battery) to power each component, and the power supply may be logically connected to the processor 1310 through a power management system, thereby implementing functions such as charging, discharging, and power consumption management through the power management system. Figure 13 The terminal structure shown in the figure does not constitute a limitation on the terminal. The terminal may include more or fewer components than shown in the figure, or combine certain components, or arrange the components differently, which will not be repeated here.

[0129] The processor 1310 is configured to detect a state of a flexible display screen in an electronic device;

[0130] Processor 1310 is configured to energize a first electromagnet in the electronic device when detecting that the flexible display is in an unfolded state, so that the magnetic fluid contained in the elastic liquid storage bag of the electronic device converges to an area close to the first electromagnet under the action of the magnetic field generated by the first electromagnet, thereby supporting the folded area of the flexible display.

[0131] In one possible embodiment, the processor 1310 is specifically used to energize the first electromagnet when the flexible display screen is in the unfolded state, so that the magnetic fluid converges to the area close to the first electromagnet under the action of the magnetic field generated by the first electromagnet to fill the gap between the folding area and the driving mechanism of the electronic device, thereby supporting the folding area.

[0132] In one possible embodiment, the processor 1310 can also be used to energize the two second electromagnets in the electronic device when it is detected that the flexible display screen is in a folded state, so that the magnetic fluid converges to the area close to the two second electromagnets under the action of the magnetic field generated by the two second electromagnets, so that the elastic liquid storage capsule encloses a accommodating space in the folded area.

[0133] Thus, when the flexible display is unfolded, the first electromagnet can be energized to generate a magnetic field. This magnetic field directs the magnetic fluid in the elastic reservoir toward the first electromagnet, thereby supporting the folding area, particularly the area corresponding to the fold centerline. This reduces the apparent crease of the flexible display and optimizes the crease.

[0134] It should be understood that in an embodiment of the present application, the input unit 1304 may include a graphics processing unit (GPU) 13041 and a microphone 13042, and the graphics processor 13041 processes the image data of a static picture or video obtained by an image capture device (such as a camera) in a video capture mode or an image capture mode. The display unit 1306 may include a display panel 13061, and the display panel 13061 may be configured in the form of a liquid crystal display, an organic light emitting diode, etc. The user input unit 1307 includes a touch panel 13071 and at least one of the other input devices 13072. The touch panel 13071 is also called a touch screen. The touch panel 13071 may include two parts: a touch detection device and a touch controller. Other input devices 13072 may include, but are not limited to, a physical keyboard, function keys (such as volume control keys, switch keys, etc.), a trackball, a mouse, and a joystick, which will not be repeated here.

[0135] The memory 1309 can be used to store software programs and various data. The memory 1309 may mainly include a first storage area for storing programs or instructions and a second storage area for storing data, wherein the first storage area may store an operating system, applications or instructions required for at least one function (such as a sound playback function, an image playback function, etc.). In addition, the memory 1309 may include a volatile memory or a non-volatile memory, or the memory 1309 may include both volatile and non-volatile memories. Among them, the non-volatile memory may be a read-only memory (ROM), a programmable read-only memory (PROM), an erasable programmable read-only memory (EPROM), an electrically erasable programmable read-only memory (EEPROM), or a flash memory. The volatile memory may be a random access memory (RAM), a static random access memory (SRAM), a dynamic random access memory (DRAM), a synchronous dynamic random access memory (SDRAM), a double data rate synchronous dynamic random access memory (DDRSDRAM), an enhanced synchronous dynamic random access memory (ESDRAM), a synchronous link dynamic random access memory (SLDRAM), and a direct memory bus random access memory (DRRAM). The memory 109 in the embodiment of the present application includes but is not limited to these and any other suitable types of memory.

[0136] Processor 1310 may include one or more processing units. Optionally, processor 1310 integrates an application processor and a modem processor. The application processor primarily handles operations related to the operating system, user interface, and application programs, while the modem processor primarily processes wireless communication signals, such as a baseband processor. It is understood that the modem processor may not be integrated into processor 1310.

[0137] An embodiment of the present application also provides a readable storage medium, on which a program or instruction is stored. When the program or instruction is executed by a processor, the various processes of the above-mentioned control method embodiment are implemented and the same technical effect can be achieved. To avoid repetition, it will not be repeated here.

[0138] The processor is the processor in the electronic device described in the above embodiment. The readable storage medium includes a computer readable storage medium, such as a computer read-only memory (ROM), a random access memory (RAM), a magnetic disk, or an optical disk.

[0139] An embodiment of the present application further provides a chip, which includes a processor and a communication interface, wherein the communication interface is coupled to the processor, and the processor is used to run programs or instructions to implement the various processes of the above-mentioned control method embodiment and achieve the same technical effect. To avoid repetition, it will not be repeated here.

[0140] It should be understood that the chip mentioned in the embodiments of the present application can also be called a system-level chip, a system chip, a chip system or a system-on-chip chip, etc.

[0141] An embodiment of the present application provides a computer program product, which is stored in a storage medium. The program product is executed by at least one processor to implement the various processes of the above-mentioned control method embodiment and can achieve the same technical effect. To avoid repetition, it will not be repeated here.

[0142] It should be noted that, in this article, the terms "comprise", "include" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device comprising a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, an element defined by the statement "comprises a ..." does not exclude the presence of other identical elements in the process, method, article or device comprising the element. In addition, it should be noted that the scope of the methods and devices in the embodiments of the present application is not limited to performing functions in the order shown or discussed, and may also include performing functions in a substantially simultaneous manner or in the opposite order according to the functions involved. For example, the described method may be performed in an order different from that described, and various steps may also be added, omitted, or combined. In addition, the features described with reference to certain examples may be combined in other examples.

[0143] Through the description of the above implementation methods, those skilled in the art can clearly understand that the above-mentioned embodiment methods can be implemented by means of software plus the necessary general hardware platform, and of course can also be implemented by hardware, but in many cases the former is a better implementation method. Based on this understanding, the technical solution of the present application is essentially or the part that contributes to the prior art can be embodied in the form of a computer software product, which is stored in a storage medium (such as ROM / RAM, magnetic disk, optical disk), including a number of instructions for enabling a terminal (which can be a mobile phone, computer, server, or network device, etc.) to execute the methods described in each embodiment of the present application.

[0144] The embodiments of the present application are described above in conjunction with the accompanying drawings, but the present application is not limited to the above-mentioned specific implementation methods. The above-mentioned specific implementation methods are merely illustrative and not restrictive. Under the guidance of this application, ordinary technicians in this field can also make many forms without departing from the purpose of this application and the scope of protection of the claims, all of which are within the protection of this application.

Claims

1. An electronic device, characterized in that: The electronic device comprises: a flexible display screen, an elastic liquid storage capsule and a first electromagnet; The elastic liquid storage capsule is arranged in the folding area of the flexible display screen, and the elastic liquid storage capsule is filled with magnetic fluid; The first electromagnet is arranged opposite to the elastic liquid storage bag, and the first electromagnet is located on a side of the elastic liquid storage bag facing away from the flexible display screen; Wherein, when the flexible display screen is in the unfolded state, the first electromagnet is energized, and the magnetic fluid is gathered to an area close to the first electromagnet under the action of the magnetic field generated by the first electromagnet, so as to support the folding area; The electronic device further comprises: two second electromagnets; The two second electromagnets are arranged on a side of the elastic liquid storage bag facing away from the flexible display screen, and the two second electromagnets are symmetrically arranged on both sides of the folding center line of the flexible display screen; Among them, when the flexible display screen is in a folded state, the two second electromagnets are energized, and the magnetic fluid is respectively gathered to the areas close to the two second electromagnets under the action of the magnetic fields generated by the two second electromagnets, so that the elastic liquid storage bag encloses the accommodating space of the folding area.

2. The electronic device according to claim 1, wherein The electronic device further includes a driving mechanism, wherein the driving mechanism is used to drive the flexible display screen to fold and unfold; The driving mechanism is arranged on a side of the elastic liquid storage bag facing away from the flexible display screen, the driving mechanism is opposite to the folding area, and the first electromagnet is arranged between the driving mechanism and the folding area.

3. The electronic device according to claim 2, wherein: The driving mechanism comprises: a rotating shaft assembly and two swing arm assemblies, wherein the two swing arm assemblies are symmetrically arranged on the rotating shaft assembly; Wherein, the first electromagnet is arranged on the rotating shaft assembly.

4. The electronic device according to claim 3, wherein: The rotating shaft assembly includes: a rotating shaft bracket, a first rotating shaft cover and a second rotating shaft cover; The first rotating shaft cover and the second rotating shaft cover are arranged opposite to each other, and the first rotating shaft cover is arranged toward the elastic liquid storage bag, and the rotating shaft bracket is arranged between the first rotating shaft cover and the second rotating shaft cover; the two swing arm assemblies are symmetrically arranged on the rotating shaft bracket; Wherein, the first electromagnet is specifically arranged on the surface of the first rotating shaft cover facing the elastic liquid storage bag.

5. The electronic device according to claim 1, wherein The first electromagnet is symmetrical with respect to a folding center line of the flexible display screen; and / or, The size of the first electromagnet along the first direction is smaller than the size of the folding area along the first direction; wherein, the first direction is parallel to the folding area, and the first direction is perpendicular to the folding center line of the flexible display screen.

6. The electronic device according to claim 1, wherein: The electronic device further comprises: two frames; The two frames are located on both sides of the folding center line and are respectively connected to the surface of the flexible display screen facing the elastic liquid storage bag; Wherein, the two second electromagnets are respectively arranged in areas of the two frames close to the folding center line.

7. A control method, characterized in that: Applied to the electronic device according to any one of claims 1 to 6, the method comprises: When the flexible display screen of the electronic device is in the unfolded state, energizing a first electromagnet of the electronic device so that the magnetic fluid contained in the elastic reservoir of the electronic device converges toward an area close to the first electromagnet under the action of the magnetic field generated by the first electromagnet, thereby supporting the folded area of the flexible display screen; The method further comprises: When the flexible display screen is in a folded state, the two second electromagnets in the electronic device are energized so that the magnetic fluid, under the action of the magnetic field generated by the two second electromagnets, converges to the areas close to the two second electromagnets, so that the elastic liquid storage bag encloses a accommodating space in the folded area.

8. The method according to claim 7, characterized in that When the flexible display screen in the electronic device is in the unfolded state, energizing a first electromagnet in the electronic device so that the magnetic fluid contained in the elastic liquid reservoir of the electronic device converges toward an area close to the first electromagnet under the action of the magnetic field generated by the first electromagnet, thereby supporting the folded area of the flexible display screen, including: When the flexible display screen is in the unfolded state, the first electromagnet is energized so that the magnetic fluid converges to the area close to the first electromagnet under the action of the magnetic field generated by the first electromagnet to fill the gap between the folding area and the driving mechanism in the electronic device, thereby supporting the folding area.

9. A control device, characterized in that: The control device includes: a detection module and a control module; The detection module is used to detect the state of the flexible display screen in the electronic device; the control module is configured to, when the detection module detects that the flexible display screen is in the unfolded state, energize a first electromagnet in the electronic device, so that the magnetic fluid contained in the elastic liquid reservoir of the electronic device converges toward an area close to the first electromagnet under the action of the magnetic field generated by the first electromagnet, thereby supporting the folded area of the flexible display screen; The control module is also used to energize the two second electromagnets in the electronic device when the detection module detects that the flexible display screen is in a folded state, so that the magnetic fluid converges to the area close to the two second electromagnets under the action of the magnetic field generated by the two second electromagnets, so that the elastic liquid storage bag encloses a accommodating space in the folding area.

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