A folding screen assembly and electronic device

Abstract

The application provides a folding screen assembly and an electronic device, relates to the technical field of display devices, and is used for solving the problem that the electronic device with the folding screen assembly has a concave problem when the bendable part of the folding screen is flattened after long-term use. The folding screen assembly comprises a folding screen, a rotating support device and a self-healing material layer. The folding screen comprises a bendable part. The rotating support device comprises a rotating device and a support device. The support device is provided with a filling groove on one side close to the folding screen. The self-healing material layer is arranged between the bendable part and the support device. During the process that the folding screen is switched from a flattened state to a folded state, the bendable part is deformed to extrude the self-healing material layer, the self-healing material layer is deformed to be switched from an initial state to a deformed state, and at least part of the self-healing material layer is inserted into the filling groove. The folding screen assembly provided by the application is used for improving the display effect of the electronic device with the folding screen assembly.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of display devices, in particular to a folding screen assembly and electronic equipment. BACKGROUND

[0002] With the progress of science and technology, the era of large-screen electronic equipment has arrived. In order to solve the problem that the traditional large-screen electronic equipment is large in size and inconvenient to carry, folding screen electronic equipment has emerged.

[0003] The folding screen electronic equipment realizes large-screen display in an unfolded state. When the folding screen electronic equipment is folded, the screen starts to bend. When the folding screen is in a folded state, the bendable part of the folding screen will be deformed. After long-term folding, the bendable part of the folding screen will be deformed to a certain extent in the unfolded state, resulting in a crease in the bendable part of the folding screen in the unfolded state display, which affects the overall display effect of the folding screen and the normal use of the user. SUMMARY

[0004] Embodiments of the present application provide a folding screen assembly and electronic equipment to solve the problem that the bendable part of the folding screen of the existing electronic equipment with a folding screen assembly is recessed when unfolded after long-term use.

[0005] To achieve the above-mentioned purpose, the embodiments of the present application adopt the following technical solutions:

[0006] In a first aspect, a folding screen assembly is provided, which comprises a folding screen, a rotating support device, and a self-healing material layer. The folding screen comprises a bendable part; the rotating support device comprises a rotating device and a support device, the rotating device being rotatably connected to the support device, and the support device being provided with a filling groove on a side close to the folding screen; the rotating device can drive the folding screen to fold, so as to switch the folding screen between an unfolded state and a folded state, and the support device is used for supporting the bendable part; the self-healing material layer is arranged in the avoiding groove and comprises an initial state and a deformed state, the self-healing material layer has the characteristics of deforming from the initial state to the deformed state and the characteristics of recovering from the deformed state to the initial state; during the switching of the folding screen from the unfolded state to the folded state, the bendable part deforms and extrudes the self-healing material layer, the self-healing material layer deforms and switches from the initial state to the deformed state, and at least part of the self-healing material layer extends into the filling groove; during the switching of the folding screen from the folded state to the unfolded state, the bendable part removes the extrusion on the self-healing material layer, the self-healing material layer elastically recovers from the deformed state to the initial state.

[0007] It should be noted that the self-healing material is a material that can restore its original structure and function after being damaged; the self-healing material layer supports the bendable part, and the bendable part extrudes the self-healing material layer, which indicates that during the switching process of the folding screen between the flat state and the folded state, the self-healing material layer is always in contact with the bendable part, and the self-healing material layer always supports the bendable part, avoiding the phenomenon that the bendable part lacks support.

[0008] In this way, during the switching process of the bendable part between the flat state and the folded state, the self-healing material always supports the bendable part. When the folding screen is switched from the folded state to the flat state, the self-healing material layer is restored from the deformed state to the initial state to support the bendable part. Therefore, the bendable part does not lack support, and even during long-term use, the bendable part will not be subject to inertial indentation, thereby ensuring the display effect of the folding screen during long-term use and ensuring normal use by the user.

[0009] In a possible implementation manner of the first aspect, the support device is provided with a recess near one side of the folding screen, and the filling recess is arranged on the inner wall of the recess. In this way, by arranging the recess, the deformation of the bendable part is avoided.

[0010] In a possible implementation manner of the first aspect, the folding screen assembly further comprises a double-way memory material layer arranged between the self-healing material layer and the bendable part of the folding screen, one side of the double-way memory material layer being in contact with the folding screen and the other side being in contact with the self-healing material layer, the double-way memory material layer having a double-way shape memory effect, including a first shape and a second shape, and being capable of switching between the first shape and the second shape along with the state of the folding screen; during the switching process of the folding screen from the flat state to the folded state, the bendable part deforms to extrude the double-way memory material layer, and the double-way memory material layer deforms from the first shape to the second shape; during the switching process of the folding screen from the folded state to the flat state, the bendable part removes the extrusion on the double-way memory material layer, and the double-way memory material layer switches from the second shape to the first shape.

[0011] The double-way memory material layer is in contact with the bendable part, the bendable part is directly supported by the double-way memory material layer, and the self-healing material layer supports the double-way memory material layer; in this way, by arranging the double-way memory material layer between the self-healing material layer and the bendable part of the folding screen, the bendable part of the folding screen is further supported, avoiding the occurrence of indentation of the bendable part during long-term use of the folding screen, and further ensuring the display effect of the folding screen.

[0012] In a possible implementation manner of the first aspect, the double-way memory material layer is formed in a wave shape, at least one wave crest of the double-way memory material layer is in contact with the bendable part, and at least one wave trough of the double-way memory material layer is in contact with the self-healing material layer. In this way, when the folding screen is switched from the unfolded state to the folded state, the double-way memory material layer presents a micro-fold wave shape to support the bendable part.

[0013] In a possible implementation manner of the first aspect, a material of the double-way memory material layer is a nickel-titanium memory alloy, or a material of the double-way memory material layer is a Cu-Zn-Al double-way memory alloy.

[0014] In a possible implementation manner of the first aspect, the folding screen assembly further includes one or more sets of adjusting assemblies, the adjusting assemblies are arranged on two sides of the double-way memory material layer, and the adjusting assemblies can adjust the width of the double-way memory material layer and the support height of the double-way memory material layer to adjust the gap size between the self-healing material layer and the folding screen.

[0015] It should be noted that, in order to further improve the problem of the concave of the bendable part of the folding screen in the long-term use, the height of the double-way memory material layer can be adjusted by adjusting the adjusting assemblies during the regular maintenance at the service point, so as to further ensure the support of the double-way memory material layer on the bendable part.

[0016] In a possible implementation manner of the first aspect, the adjusting assembly includes a first fixing member and a second fixing member, the first fixing member is arranged on one side of the double-way memory material layer, and the second fixing member is arranged on the other side of the double-way memory material layer; the first fixing member and the second fixing member are both abutted on the double-way memory material layer. In this way, the first fixing member and the second fixing member arranged on two sides of the double-way memory material layer are used to fix the double-way memory material layer.

[0017] In a possible implementation manner of the first aspect, the first fixing member includes a first connecting rod and a first cam, the first cam is fixedly connected to one end of the first connecting rod, the other end of the first connecting rod is connected to a rotating device, and the first cam is abutted on one side of the double-way memory material layer; and / or, the second fixing member includes a second connecting rod and a second cam, the second cam is fixedly connected to one end of the second connecting rod, the other end of the second connecting rod is connected to the rotating device, and the second cam is abutted on the other side of the double-way memory material layer. In this way, the first cam and the second cam are used to fix the double-way memory material layer.

[0018] In a possible implementation manner of the first aspect, the profile line of the first cam includes a semicircular segment and a semi-elliptical segment, two ends of the semicircular segment are connected to two ends of a minor axis of the semi-elliptical segment, or two ends of the semicircular segment are connected to two ends of a major axis of the semi-elliptical segment. It can be understood that the distance between a point on the semicircular segment and the central axis of the first connecting rod is different from the distance between a point on the semi-elliptical segment and the central axis of the first connecting rod. Thus, by rotating the first cam, the width of the double-way memory material layer is changed, and then the distance between the self-healing material layer and the bendable part is changed.

[0019] In a possible implementation manner of the first aspect, the profile line of the second cam includes a semicircular segment and a semi-elliptical segment, two ends of the semicircular segment are connected to two ends of a minor axis of the semi-elliptical segment, or two ends of the semicircular segment are connected to two ends of a major axis of the semi-elliptical segment. Thus, by rotating the second cam, the width of the double-way memory material layer is changed, and then the distance between the self-healing material layer and the bendable part is changed.

[0020] In a possible implementation manner of the first aspect, the folding screen assembly further includes a self-healing material coating, the self-healing material coating is arranged on the bendable part of the folding screen, and the self-healing material coating is arranged on a side of the folding screen away from the support device; the folding screen includes a screen protection layer, the screen protection layer is located on a side of the folding screen away from the support device, and the light transmittance of the self-healing material coating is the same as the light transmittance of the screen protection layer.

[0021] It should be noted that the screen protection layer of the bendable part will be damaged due to repeated deformation during long-term use, which affects the light and shadow experience of the user. In this embodiment, the self-healing material coating is arranged on the side of the bendable part away from the support device to realize self-repairing, thereby improving the display effect of the folding screen and the user experience.

[0022] In a possible implementation manner of the first aspect, the folding screen assembly further includes an elastic connection layer, the elastic connection layer is arranged between the double-way memory material layer and the folding screen. One side of the elastic connection layer is in contact with the bendable part, and the other side is in contact with the self-healing material layer. Thus, by arranging the elastic connection layer between the double-way memory material layer and the folding screen, the double-way memory material layer is separated from the folding screen, thereby avoiding the phenomenon of scratching the folding screen during deformation of the double-way memory material layer.

[0023] In a possible implementation manner of the first aspect, the material of the elastic connection layer is rubber. In a possible implementation manner of the first aspect, a plurality of filling grooves are arranged in the avoiding groove, and the plurality of filling grooves are arranged at intervals. Thus, by arranging the plurality of filling grooves, sufficient space is ensured to avoid deformation of the self-healing material layer.

[0024] In a possible implementation manner of the first aspect, the material of the self-healing material layer is an epoxy polymer or a polyurethane polymer.

[0025] In a possible implementation manner of the first aspect, the rotating device comprises a first rotating shaft and a second rotating shaft, and a first middle frame and a second middle frame; the first middle frame is rotationally connected to the first rotating shaft, and the second middle frame is rotationally connected to the second rotating shaft; the two ends of the folding screen are respectively connected to the first middle frame and the second middle frame. In this way, the first middle frame is rotationally connected to the supporting device through the first rotating shaft, and the second middle frame is rotationally connected to the supporting device through the second rotating shaft. The second aspect further provides an electronic device, which comprises a back plate and the folding screen assembly of any one of the technical solutions of the first aspect.

[0026] Since the electronic device provided in the present application comprises the folding screen assembly of any one of the technical solutions of the first aspect, both can solve the same problem and achieve the same effect. BRIEF DESCRIPTION OF DRAWINGS

[0027] Figure 1 A structural schematic diagram of an electronic device provided by some embodiments of the present application is shown in FIG. 1.

[0028] Figure 2 A structural schematic diagram of an electronic device provided by some embodiments of the present application is shown in FIG. 1.

[0029] Figure 3 A structural schematic diagram of an electronic device provided by some embodiments of the present application is shown in FIG. 1.

[0030] Figure 4 A structural schematic diagram of a folding screen assembly provided by some embodiments of the present application is shown in FIG. 2.

[0031] Figure 5 A structural schematic diagram of a folding screen assembly provided by some embodiments of the present application is shown in FIG. 2.

[0032] Figure 6 A structural schematic diagram of a folding screen assembly provided by some embodiments of the present application is shown in FIG. 2.

[0033] Figure 7 A structural schematic diagram of a folding screen assembly provided by some embodiments of the present application is shown in FIG. 2.

[0034] Figure 8 A structural schematic diagram of a folding screen assembly provided by some embodiments of the present application is shown in FIG. 2.

[0035] Figure 9A schematic diagram of the structure of a folding screen assembly with the self-healing material layer in its initial state, provided for some embodiments of this application;

[0036] Figure 10 A schematic diagram of the structure of a folding screen assembly with the self-healing material layer in its initial state, provided for some embodiments of this application;

[0037] Figure 11 A schematic diagram of the structure of a foldable screen assembly with a two-way memory material layer in a first state, provided in some embodiments of this application;

[0038] Figure 12 A schematic diagram of the structure of a foldable screen assembly with a two-way memory material layer in a second state, provided in some embodiments of this application;

[0039] Figure 13 This is a schematic diagram of the structure of a foldable screen assembly provided in other embodiments of this application;

[0040] Figure 14 for Figure 13 A partial structural schematic diagram of the foldable screen component shown;

[0041] Figure 15 for Figure 14 The assembly diagram of the adjustment components and the two-way memory material layer shown in the figure;

[0042] Figure 16 for Figure 15 A schematic diagram of the first fastener shown;

[0043] Figure 17 This is a structural schematic diagram of a foldable screen assembly provided in some embodiments of this application.

[0044] Figure label:

[0045] 10. Electronic device; 100. Foldable screen assembly; 110. Foldable screen; 111. First part; 112. Second part; 113. Bendable part; 120. Rotating support device; 121. Rotating device; 1211. First pivot; 1212. Second pivot; 1213. First middle frame; 1214. Second middle frame; 1215. First back panel; 1216. Second back panel; 122. Support device; 1221. Clearance groove; 1222. 130. Filling groove; 140. Self-healing material layer; 141. Two-way memory material layer; 142. First end edge; 150. Second end edge; 160. Elastic connection layer; 161. Adjustment component; 161. First fixing member; 1611. First connecting rod; 1612. First cam; 1613. Semicircular part; 1614. Semi-elliptical part; 162. Second fixing member; 1621. Second connecting rod; 1622. Second cam; 170. Self-healing material coating. Detailed Implementation

[0046] In the embodiments of the present application, the terms "first", "second", "third" are only used for descriptive purpose, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined with "first", "second", "third" can explicitly or implicitly include one or more of the features.

[0047] In the embodiments of the present application, the terms "including", "containing" or any other variants thereof are intended to cover non-exclusive inclusion, so that the process, method, article or device including a series of elements not only includes those elements, but also includes other elements not explicitly listed or inherent to such process, method, article or device. Without more limitations, the element defined by the statement "including a" does not exclude the existence of other identical elements in the process, method, article or device including the element.

[0048] In the embodiments of the present application, "and / or" is only a description of the association relationship between the associated objects, which means that there can be three relationships, for example, A and / or B can represent the following three cases: A exists alone, A and B exist together, and B exists alone. In addition, the character " / " in this paper generally represents a "or" relationship between the front and back associated objects.

[0049] The present application provides an electronic device, please refer to Figure 1 , Figure 1A structural schematic diagram of an electronic device is provided for some embodiments of the present application. The electronic device 10 is a type of electronic product with a folding screen assembly 100. Specifically, the electronic device 10 can be a user equipment (UE) or a terminal device, etc. For example, the electronic device 10 can be a portable android device (PAD), a personal digital assistant (PDA), a handheld device with wireless communication function, a computing device, a vehicle-mounted device, a wearable device, a virtual reality (VR) terminal device, an augmented reality (AR) terminal device, a wireless terminal in industrial control, a wireless terminal in self driving, a wireless terminal in remote medical, a wireless terminal in smart grid, a wireless terminal in transportation safety, a wireless terminal in smart city, a wireless terminal in smart home, or the like. The form of the electronic device 10 is not specifically limited in the embodiments of the present application.

[0050] The folding screen assembly 100 includes a folding screen 110 for displaying images, videos, etc. Specifically, the folding screen 110 can be an organic light-emitting diode (OLED) screen, a micro organic light-emitting diode screen, a quantum dot light emitting diode (QLED) screen, a liquid crystal display (LCD), etc.

[0051] The folding screen 110 can be folded into a first part 111 and a second part 112. The folding screen 110 further includes a bendable part 113 between the first part 111 and the second part 112. The bendable part 113 of the folding screen 110 is made of a flexible material. The first part 111 and the second part 112 can be made of a flexible material, can be made of a rigid material, or can be partially made of a rigid material and partially made of a flexible material, which is not specifically limited here.

[0052] Please refer to Figure 2 and Figure 3 , Figure 2A structural schematic diagram of an electronic device with a folding screen in a flat state is provided for some embodiments of the present application. Figure 3 A structural schematic diagram of an electronic device with a folding screen in a folded state is provided for some embodiments of the present application. The folding screen 110 can be switched between the flat state and the folded state.

[0053] Specifically, refer to Figure 2 When the folding screen 110 is in the flat state, the first part 111, the second part 112 and the bendable part 113 are coplanarly arranged and face the same direction, and the bendable part 113 is in the flat state. In this state, large-screen display can be realized, and more abundant information can be provided to the user, bringing better user experience.

[0054] Refer to Figure 2 and Figure 3 The folding screen 110 is an inner folding screen, and when it is in the folded state, the bendable part 113 is in the folded state, and the first part 111 is opposite to the second part 112. The folding screen 110 is invisible to the user, so as to prevent the folding screen 110 from being scratched by a hard object. At the same time, the size of the electronic device 10 is reduced, which is convenient for carrying.

[0055] The folding screen is an outer folding screen, and when it is in the folded state, the bendable part is in the folded state, and the folding screen is visible to the user, so as to facilitate the user to operate the small screen or operate with one hand.

[0056] Please refer to Figure 4 , Figure 4 A schematic diagram of a folding screen assembly 100 is provided for some embodiments of the present application. The folding screen assembly 100 further comprises a rotating support device 120, the rotating support device 120 comprising a rotating device 121 and a support device 122, the rotating device 121 being rotatably connected to the support device 122. The two ends of the folding screen 110 (the first part 111 and the second part 112 of the folding screen 110) are respectively connected with the rotating device 121, the rotating device 121 can drive the folding screen 110 to fold, so as to switch the folding screen 110 between the flat state and the folded state, and the support device 122 is used for supporting the bendable part 113. The side close to the folding screen 110 of the support device 122 is provided with a avoiding recess 1221.

[0057] It should be noted that when the folding screen 110 is in the folded state, the bendable part 113 will be deformed to form a water drop-shaped fold, which will press the support device 122. By providing the avoiding recess 1221 on the side close to the folding screen 110 of the support device 122, the deformation of the bendable part 113 is avoided, the collision and friction between the bendable part 113 and the support device 122 are avoided, the damage of the bendable part 113 and the support device 122 is avoided, thereby prolonging the service life of the electronic device 10 and improving the user experience.

[0058] The rotating device 121 comprises a first rotating shaft 1211 and a second rotating shaft 1212, and a first middle frame 1213 and a second middle frame 1214. The first middle frame 1213 is rotationally connected to the first rotating shaft 1211, and the second middle frame 1214 is rotationally connected to the second rotating shaft 1212. Specifically, the rotating device 121 can further comprise a first swing arm (not shown in the figure) and a second swing arm (not shown in the figure). The first swing arm is rotationally connected to the first rotating shaft 1211, and the first middle frame 1213 is fixed to the first swing arm. The second swing arm is rotationally connected to the second rotating shaft 1212, and the second middle frame 1214 is fixed to the second swing arm.

[0059] The first middle frame 1213 is used to fix and support the first part 111 of the folding screen 110. Specifically, the first middle frame 1213 has a fitting surface, and the first middle frame 1213 is used to fix and support the first part 111 of the folding screen 110 through the fitting surface. Figure 1 The second middle frame 1214 is used to fix and support the second part 112 of the folding screen 110. Specifically, the second middle frame 1214 has a fitting surface, and the second middle frame 1214 is used to fix and support the second part 112 of the folding screen 110 through the fitting surface.

[0060] The second middle frame 1214 is used to fix and support the second part 112 of the folding screen 110. Specifically, the second middle frame 1214 has a fitting surface, and the second middle frame 1214 is used to fix and support the second part 112 of the folding screen 110 through the fitting surface. Figure 1 The second middle frame 1214 is used to fix and support the second part 112 of the folding screen 110. Specifically, the second middle frame 1214 has a fitting surface, and the second middle frame 1214 is used to fix and support the second part 112 of the folding screen 110 through the fitting surface.

[0061] The electronic device can further comprise a back plate comprising a first back plate 1215 and a second back plate 1216. The first back plate 1215 is fixed to a side of the first middle frame 1213 away from the first part 111, and the second back plate 1216 is fixed to a side of the second middle frame 1214 away from the second part 112. The first back plate 1215 and the first middle frame 1213 define a first accommodating cavity (not shown in the figure), and the second back plate 1216 and the second middle frame 1214 define a second accommodating cavity (not shown in the figure).

[0062] The first back plate 1215 and the first middle frame 1213 can be an integral structure, or can be assembled from multiple parts. Similarly, the second back plate 1216 and the second middle frame 1214 can be an integral structure, or can be assembled from multiple parts. The first accommodating cavity and the second accommodating cavity are used to accommodate the main board, the battery, the camera module, the speaker, the earpiece, and other electronic devices of the electronic device 10.

[0063] It can be understood that only some components of the rotating support device 120 are shown in the figure, and the actual shape, actual size, actual position, and actual structure of these components are not limited. Figure 4

[0064] ​In some embodiments, during a long time of use of the folding screen 110, although the existence of the avoidance groove 1221 avoids the friction and extrusion of the bendable part 113 with the support device 122, when the bendable part 113 is flattened, the bendable part 113 lacks support at the position corresponding to the avoidance groove 1221, and thus, after a long time of use of the folding screen 110, the position of the bendable part 113 opposite to the avoidance groove 1221 will be deformed, and the inertial recess refers to that, after the bendable part 113 is flattened, due to the lack of stable support of the bendable part 113 at the position opposite to the avoidance groove 1221, the recess in the bent state cannot be offset. Thus, after the folding screen 110 is flattened, the bendable part 113 is not in the same plane as the first part 111 and the second part 112, which affects the display effect of the folding screen 110 and affects the normal use of the user.

[0065] To solve the above problems, please refer to Figure 5 and Figure 6 , Figure 5 a structural schematic diagram of a folding screen assembly in an initial state provided by a self-healing material layer of some embodiments of the present application; Figure 6 a structural schematic diagram of a folding screen assembly in a deformed state provided by a self-healing material layer of some embodiments of the present application.

[0066] The folding screen assembly 100 provided by some embodiments of the present application further comprises a self-healing material layer 130, and the inner wall of the avoidance groove 1221 is provided with a filling groove 1222; the self-healing material layer 130 is arranged in the avoidance groove 1221, the self-healing material layer 130 comprises an initial state and a deformed state, the self-healing material layer 130 has the characteristics of deforming from the initial state to the deformed state, and the characteristics of recovering from the deformed state to the initial state.

[0067] Please refer to Figure 5 When the folding screen 110 is in a flattened state, the self-healing material layer 130 is in an initial state, and the self-healing material layer 130 fills the avoidance groove 1221 to support the bendable part 113. Please refer to Figure 6 When the folding screen 110 is an inward folding screen and is in a folded state, the bendable part 113 extrudes the self-healing material layer 130, so that the self-healing material layer 130 is in a deformed state, and at least part of the self-healing material layer 130 extends into the filling groove 1222.

[0068] It should be noted that the self-healing material is a material that can restore its original structure and function after being damaged; "the self-healing material layer 130 supports the bendable part 113", "the bendable part 113 extrudes the self-healing material layer 130", which indicates that during the switching process of the folding screen 110 between the flat state and the folded state, the self-healing material layer 130 is always in abutment with the bendable part 113, and the self-healing material layer 130 always provides support to the bendable part 113, avoiding the phenomenon of lack of support of the bendable part 113.

[0069] Therefore, during the switching process of the bendable part 113 between the flat state and the folded state, the self-healing material layer 130 always supports the bendable part 113. When the folding screen 110 is switched from the folded state to the flat state, the self-healing material layer 130 recovers from the deformed state to the initial state to support the bendable part 113. Therefore, the bendable part 113 does not lack support, and even during long-term use, the bendable part 113 will not be subject to inertial indentation, thereby ensuring the display effect of the folding screen 110 during long-term use and ensuring normal use by the user.

[0070] For example, please continue to refer to Figure 5 and Figure 6 When the folding screen 110 is in the flat state, the self-healing material layer 130 fills in the avoidance groove 1221 and fills the avoidance groove 1221, the upper surface of the self-healing material layer 130 is in contact with the bendable part 113 and provides support to the bendable part 113, and since the self-healing material layer 130 fills the avoidance groove 1221, the contact surface of the self-healing material layer 130 and the bendable part 113 reaches the maximum, which is conducive to ensuring the stability of the support of the self-healing material layer 130 to the bendable part 113.

[0071] During the switching process of the folding screen 110 from the flat state to the folded state, the bendable part 113 deforms and extrudes the self-healing material layer 130, the self-healing material layer 130 deforms, and part of the self-healing material layer 130 moves to fill the groove 1222 to avoid the deformation of the bendable part 113, until the folding screen 110 is switched to the folded state, the deformation of the bendable part 113 ends, and the self-healing material layer 130 is no longer further extruded. In this way, by providing the self-healing material layer 130, on the one hand, it ensures the avoidance of the deformation of the bendable part 113, and on the other hand, it also ensures the support to the bendable part 113.

[0072] It should be noted that the self-healing material layer 130 also includes a natural state, which refers to the state of the self-healing material layer 130 under no pressure. The self-healing material layer 130 recovers from the deformed state to the initial state, which is not 100% recovered to the natural state of the self-healing material layer 130, but can be recovered to more than 90% of the natural state of the self-healing material layer 130. Under the above conditions, the support of the self-healing material layer 130 to the bendable part 113 in the initial state can be met. Specifically, the initial state can be recovered to 99%, or 95%, or 90% of the natural state, etc.

[0073] In some embodiments, a plurality of filling grooves 1222 are arranged in the avoidance groove 1221, and the plurality of filling grooves 1222 are arranged at intervals. Specifically, referring to Figure 5 In the width direction of the avoidance groove 1221, the plurality of filling grooves 1222 are arranged at intervals on the bottom wall of the avoidance groove 1221. It should be noted that assuming that the deformation amount of the self-healing material layer 130 due to extrusion of the bendable part 113 is a, and not considering the elastic shrinkage of the self-healing material layer 130 itself, the volume of the filling groove 1222 requires at least a to meet the avoidance of the deformation of the bendable part 113.

[0074] Then, when the filling groove 1222 is one, the volume of the filling groove 1222 is at least a; when the filling groove 1222 is two, the volume of each filling groove 1222 can be a / 2; when the filling groove 1222 is three, the volume of each filling groove 1222 can be a / 3; thus, by arranging a plurality of filling grooves 1222, the volume of each filling groove 1222 can be reduced, that is, the size of each filling groove 1222 can be reduced, thereby reducing the impact on the structural strength of the support device 122 due to the arrangement of the filling groove 1222.

[0075] The total volume of the filling groove 1222 is greater than or equal to a, because the elastic shrinkage of the self-healing material layer 130 of different materials is different, resulting in different deformation amounts of the self-healing material layer 130 of different materials. In this way, the total volume of the filling groove 1222 is set to be greater than or equal to a, so that the filling groove 1222 can meet the deformation amount of the self-healing material layer 130 of different materials, and the versatility of the filling groove 1222 is improved. Even if the material of the self-healing material layer 130 is replaced, the filling groove 1222 does not need to be redesigned.

[0076] In some embodiments, the total volume of the filling groove 1222 can be set to 1.2a, 1.4a, 1.6a, 1.8a, 2a, etc. according to specific circumstances.

[0077] In addition, the material of the self-healing material layer 130 can be selected from at least one of polyurethane, epoxy resin, ethylene-vinyl acetate copolymer, polyimide, cellulose, polycaprolactone, polylactic acid, polyglycolic acid, poly(lactic-co-glycolic acid), polyvinyl alcohol and derivatives thereof, and modified materials thereof. Specifically, the material of the self-healing material layer can be polyurethane, which has good stability, chemical resistance, resilience, and mechanical properties.

[0078] The polyurethane material can quickly return to the initial state under the action of electricity or heat to support the folding screen. Specifically, the self-healing material layer is provided with a stimulating electrode and an angle sensor connected thereto. The power supply of the electronic device supplies power to the stimulating electrode and the angle sensor. When the angle sensor identifies that the folding screen is flat, the stimulating electrode is electrified, so that the self-healing material layer is electrified and heated, and then the self-healing material layer quickly returns to the initial state to support the folding screen.

[0079] In some embodiments, please refer to Figure 7 and Figure 8 , Figure 7 the structure schematic diagram of the folding screen assembly with the self-healing material layer in the initial state provided by some other embodiments of the present application; Figure 8 the structure schematic diagram of the folding screen assembly with the self-healing material layer in the deformed state provided by some other embodiments of the present application. When the folding screen 110 is an outer folding screen, the bendable part 113 deforms and extrudes the self-healing material layer 130 when the folding screen 110 switches from the flat state to the folded state, so that the self-healing material layer 130 deforms from the initial state to the deformed state. Part of the self-healing material layer 130 extends into the filling groove 1222 to avoid deformation of the bendable part 113, while ensuring support for the bendable part 113, avoiding the deformation of the bendable part 113 after long-term use of the folding screen 110, and thus ensuring the display effect of the folding screen 110.

[0080] In some other embodiments, please refer to Figure 9 and Figure 10 , Figure 9 the structure schematic diagram of the folding screen assembly with the self-healing material layer in the initial state provided by some other embodiments of the present application; Figure 10The structure diagram of the folding screen assembly in the initial state provided by some embodiments of the present application is shown in FIG. 13. The self-healing material layer 130 does not fill the avoidance groove 1221; when the self-healing material layer 130 is in the initial state, one end of the self-healing material layer 130 is in contact with the bendable part 113, and the other end of the self-healing material layer 130 is in contact with the avoidance groove 1221, thereby achieving support for the bendable part 113; when the self-healing material layer 130 is in the deformed state, the self-healing material layer 130 is extruded by the bendable part 113, and the self-healing material layer 130 deforms to avoid the bendable part 113; since the self-healing material layer 130 does not fill the avoidance groove 1221, part of the self-healing material layer 130 can move to the space not filled with the self-healing material layer 130. Specifically, referring to FIG. 13, the cross section of the self-healing material layer 130 can be formed in a rectangular shape, a circular shape, etc., so that the support and avoidance for the bendable part 113 can be achieved without setting the filling groove. Figure 7 and Figure 8 , the cross section of the self-healing material layer 130 can be formed in a rectangular shape, a circular shape, etc., so that the support and avoidance for the bendable part 113 can be achieved without setting the filling groove.

[0081] In some embodiments, referring to Figure 11 and Figure 12 , Figure 11 The structure diagram of the folding screen assembly in the first state provided by some embodiments of the present application is shown in FIG. 14; Figure 12 The structure diagram of the folding screen assembly in the second state provided by some embodiments of the present application is shown in FIG. 15. The folding screen assembly 100 can further include a double-way memory material layer 140, which is arranged between the self-healing material layer 130 and the bendable part 113 of the folding screen 110, and one side of the double-way memory material layer 140 is in contact with the bendable part 113, and the other side is in contact with the self-healing material layer 130.

[0082] Specifically, the double-way memory material layer 140 has a double-way shape memory effect, which refers to that some alloys can restore the shape of the high-temperature phase when heated, and can restore the shape of the low-temperature phase when cooled. The double-way memory material layer 140 includes a first state and a second state, and the double-way memory material layer 140 can switch between the first state and the second state along with the state of the folding screen 110.

[0083] When the folding screen 110 is in the unfolded state, the double-way memory material layer 140 is in the first morphology, supporting the bendable part 113; when the folding screen 110 is in the folded state, the double-way memory material layer 140 is in the second morphology, supporting the bendable part 113 and providing a space for the bending of the bendable part 113. Thus, by arranging the double-way memory material layer 140 between the self-healing material layer 130 and the bendable part 113, the double-way memory material layer 140 and the self-healing material layer 130 cooperate with each other to further ensure the stability of the support for the bendable part 113, avoiding deformation of the bendable part 113.

[0084] Specifically, when the folding screen 110 is in the unfolded state, the self-healing material layer 130 is in the initial state, and the double-way memory material layer 140 is in the first morphology. The self-healing material layer 130 supports the double-way memory material layer 140, and the double-way memory material layer 140 supports the bendable part 113. When the folding screen 110 switches from the unfolded state to the folded state, the bendable part 113 deforms, the bendable part 113 extrudes the double-way memory material layer 140, the double-way memory material layer 140 deforms, the double-way memory material layer 140 extrudes the self-healing material layer 130, the self-healing material layer 130 deforms, and part of the self-healing material layer 130 moves from the avoiding groove 1221 to the filling groove 1222. When the folding screen 110 switches to the folded state, the deformation of the bendable part 113 ends, the extrusion of the bendable part 113 on the double-way memory material layer 140 ends, the double-way memory material layer 140 is in the second morphology, the self-healing material layer 130 is in the deformed state, and in the above process, the self-healing material layer 130 and the double-way memory material layer 140 support the bendable part 113.

[0085] When the folding screen 110 switches from the folded state to the unfolded state, the degree of deformation of the bendable part 113 gradually decreases, the double-way memory material layer 140 switches from the second morphology to the first morphology, and the self-healing material layer 130 switches from the deformed state to the initial state. When the folding screen 110 switches to the unfolded state, the double-way memory material layer 140 switches to the first morphology, and the self-healing material layer 130 switches to the initial state. In the above process, the self-healing material layer 130 and the double-way memory material layer 140 support the bendable part 113. Thus, by simultaneously arranging the self-healing material layer 130 and the double-way memory material layer 140, the support for the bendable part 113 is double guaranteed, thereby avoiding the occurrence of inertial indentation of the bendable part 113, ensuring the display effect of the folding screen 110, and improving the user experience.

[0086] In some embodiments, please continue to refer to Figure 11 and Figure 12, the double-way memory material layer 140 is formed in a wave shape, at least one wave crest of the double-way memory material layer 140 is in contact with the bendable part 113, and at least one wave trough of the double-way memory material layer 140 is in contact with the self-healing material layer 130. In some specific embodiments, referring to Figure 12 , when the double-way memory material layer 140 is in the second form, the distance between the wave crest and the wave trough is reduced to zero, and the double-way memory material layer 140 is switched to a sheet shape.

[0087] Thus, by setting the double-way memory material layer 140 in a wave shape, the distance between the wave crest and the wave trough is reduced during the switching of the double-way memory material layer 140 from the first form to the second form, thereby reducing the gap between the bendable part 113 and the self-healing material layer 130, and providing a space for the deformation of the bendable part 113.

[0088] In some specific embodiments, the double-way memory material layer 140 can be set in a structure of one wave crest, a structure of two wave crests, a structure of three wave crests, a structure of four wave crests, and so on.

[0089] Specifically, the material of the double-way memory material layer 140 can be a nickel-titanium double-way memory alloy, and the material of the double-way memory material layer 140 can also be a Cu-Zn-Al double-way memory alloy. The nickel-titanium double-way memory alloy can accelerate deformation under the condition of being powered or heated. For example, the nickel-titanium double-way memory alloy is provided with an angle sensor and a stimulating electrode, and the power supply of the electronic device supplies power to the angle sensor and the stimulating electrode. When the nickel-titanium double-way memory alloy is switched from the first form to the second form, the angle sensor detects that the angle of the nickel-titanium double-way memory alloy is opened or closed to a certain degree, and then the power supply supplies power to the stimulating electrode, so that the nickel-titanium double-way memory alloy is powered or heated, thereby accelerating the switching of the double-way memory alloy to the second form to support the folding screen.

[0090] In some embodiments, referring to Figure 13 , Figure 13A structural schematic diagram of a folding screen assembly is provided for some other embodiments of the present application. The folding screen assembly 100 can further include an elastic connection layer 150 disposed between the double-way memory material layer 140 and the bendable portion 113. In this way, by disposing the elastic connection layer 150 between the double-way memory material layer 140 and the bendable portion 113, direct contact between the double-way memory material layer 140 and the bendable portion 113 is avoided.

[0091] It can be understood that the double-way memory material layer 140 and the bendable portion 113 have different deformation amounts and different materials during switching of the folding screen 110 between the flat state and the folded state. The elastic connection layer 150 disposed between the double-way memory material layer 140 and the bendable portion 113 can avoid scratches or strains between the bendable portion 113 and the double-way memory material layer 140 due to different deformations.

[0092] The material of the elastic connection layer 150 can be rubber. Since the elastic connection layer 150 has elasticity, the elastic connection layer 150 can change with the state of the folding screen 110. For example, when the folding screen 110 is in the flat state, the elastic connection layer 150 is also in the flat state. When the folding screen 110 is in the folded state, the elastic connection layer 150 deforms with the bendable portion 113 and is in the folded state consistent with the shape of the bendable portion 113.

[0093] In some embodiments, referring to Figure 14 , Figure 14 For Figure 13 A partial structural schematic diagram of a folding screen assembly is shown in FIG. 6. The folding screen assembly 100 can further include one or more groups of adjustment assemblies 160 disposed on both sides of the double-way memory material layer 140. The adjustment assemblies 160 can adjust the gap between the self-healing material layer 130 and the folding screen 110 by adjusting the width of the double-way memory material layer 140 and the support height of the double-way memory material layer 140. When there are multiple groups of adjustment assemblies 160, the multiple groups of adjustment assemblies 160 are disposed at intervals in the length direction of the double-way memory material layer 140, thereby adjusting the width of the double-way memory material layer 140 as a whole.

[0094] It should be noted that, under the premise of setting the self-healing material layer 130 and the double-way memory material layer 140, the folding screen 110 still has the possibility of being depressed during a long period of use. Therefore, the user can send the electronic device 10 to a service point for repair after finding that the bendable part 113 is depressed during use. The staff of the service point can adjust the supporting height of the double-way memory material layer 140 by adjusting the adjusting assembly 160, so as to further ensure the supporting effect of the double-way memory material layer 140 on the bendable part 113.

[0095] Specifically, taking the example that the double-way memory material layer 140 is formed in a wave shape, the width of the double-way memory material layer 140 is adjusted by the adjusting assembly 160, so that the double-way memory material layer 140 is squeezed in the width direction, the distance between the wave crest and the wave trough in the width direction of the double-way memory material layer 140 is reduced, the distance between the wave crest and the wave trough in the height direction is increased, and then the supporting height of the double-way memory material layer is adjusted.

[0096] For example, the adjusting assembly 160 includes a first fixing piece 161 and a second fixing piece 162. The first fixing piece 161 is arranged on one side of the double-way memory material layer 140, and the second fixing piece 162 is arranged on the other side of the double-way memory material layer 140. The first fixing piece 161 and the second fixing piece 162 are both abutted on the double-way memory material layer 140. In this way, on the one hand, the double-way memory material layer 140 is fixed on the rotating device 121 by arranging the first fixing piece 161 and the second fixing piece 162 abutting on the double-way memory material layer 140. On the other hand, since the first fixing piece 161 and the second fixing piece 162 are both abutted on the double-way memory material layer 140, the distance between the first fixing piece 161 and the second fixing piece 162 is adjusted, so as to adjust the width of the double-way memory material layer 140, and then adjust the supporting height of the double-way memory material layer 140.

[0097] During the specific adjustment process, the maintenance personnel can adjust the first fixing piece 161, so that the distance between the first fixing piece 161 and the second fixing piece 162 is reduced, and then the supporting height of the double-way memory material layer 140 is adjusted. Please refer to Figure 14 and Figure 15 , Figure 15 for Figure 14The assembly diagram of the adjusting assembly and the double-way memory material layer shown in the middle. For example, the first fixing member 161 can include a first connecting rod 1611 and a first cam 1612, the first cam 1612 is fixedly connected to one end of the first connecting rod 1611, the other end of the first connecting rod 1611 is connected to the rotating device 121, and the first cam 1612 abuts against one side of the double-way memory material layer 140; the second fixing member 162 abuts against the other side of the double-way memory material layer 140. Thus, by rotating the first cam 1612, the contact position of the first cam 1612 and the double-way memory material layer 140 is adjusted, that is, the distance between the first cam 1612 and the second fixing member 162 is adjusted, and the supporting height of the double-way memory material layer 140 is adjusted.

[0098] The maintenance personnel can also adjust the supporting height of the double-way memory material layer 140 by adjusting the second fixing member 162, so that the distance between the first fixing member 161 and the second fixing member 162 is reduced. For example, the first fixing member 161 abuts against one side of the double-way memory material layer 140, and the second fixing member 162 can include a second connecting rod 1621 and a second cam 1622, the second cam 1622 is fixedly connected to one end of the second connecting rod 1621, the other end of the second connecting rod 1621 is connected to the rotating device 121, and the second cam 1622 abuts against the other side of the double-way memory material. Thus, by rotating the second cam 1622, the contact position of the second cam 1622 and the double-way memory material layer 140 is adjusted, that is, the distance between the first fixing member 161 and the second cam 1622 is adjusted, and the supporting height of the double-way memory material layer 140 is adjusted.

[0099] The maintenance personnel can also adjust the supporting height of the double-way memory material layer 140 by adjusting the first fixing member 161 and the second fixing member 162 at the same time, so that the distance between the first fixing member 161 and the second fixing member 162 is reduced. For example, the first fixing member 161 includes a first connecting rod 1611 and a first cam 1612, the first cam 1612 is fixedly connected to one end of the first connecting rod 1611, the other end of the first connecting rod 1611 is connected to the rotating device 121, and the first cam 1612 abuts against one side of the double-way memory material layer 140; at the same time, the second fixing member 162 includes a second connecting rod 1621 and a second cam 1622, the second cam 1622 is fixedly connected to one end of the second connecting rod 1621, the other end of the second connecting rod 1621 is connected to the rotating device 121, and the second cam 1622 abuts against the other side of the double-way memory material layer 140. Thus, by rotating the first cam 1612 and the second cam 1622 at the same time, the contact positions of the first cam 1612 and the second cam 1622 and the double-way memory material layer 140 are adjusted, the distance between the first cam 1612 and the second cam 1622 is adjusted, and the supporting height of the double-way memory material layer 140 is adjusted.

[0100] In some embodiments, please continue to refer to Figure 14 and Figure 15 The double-way memory material layer 140 is provided with a first end edge 141 and a second end edge 142 on both sides of the width direction of the double-way memory material layer 140, the first end edge 141 is connected to one end of the double-way memory material layer 140, the second end edge 142 is connected to the other end of the double-way memory material layer 140, the first end edge 141 and the second end edge 142 are of the same material as the double-way memory material layer 140, the first connecting rod 1611 of the first fixing member 161 is threaded through the first end edge 141 and the rotating device 121, and the first end edge 141 is fixed on the rotating device 121; the second connecting rod 1621 of the second fixing member 162 is threaded through the second end edge 142 and the rotating device 121, and the second end edge 142 is fixed on the rotating device 121; thus, the double-way memory material layer 140 is fixed on the rotating device 121 through the first fixing member 161 and the second fixing member 162, and the first end edge 141 and the second end edge 142.

[0101] The first end edge 141, the second end edge 142 and the double-way memory material layer 140 can be an integral whole or can be assembled by multiple parts.

[0102] In some embodiments, please refer to Figure 15 and Figure 16 , Figure 16 is Figure 15 a schematic view of the first fixing member 161 shown in FIG. 1. The first cam 1612 can include a semicircular portion 1613 and a semi-elliptical portion 1614, the cross section of the semicircular portion 1613 is formed as a semicircle, and the cross section of the semi-elliptical portion 1614 is formed as a semi-ellipse. The tangent plane of the semicircular portion 1613 is connected to the tangent plane of the semi-elliptical portion 1614, and the tangent plane of the semicircular portion 1613 is consistent with the tangent plane of the semi-elliptical portion 1614.

[0103] The second cam 1622 can also include a semicircular portion 1613 and a semi-elliptical portion 1614, the cross section of the semicircular portion 1613 is formed as a semicircle, and the cross section of the semi-elliptical portion is formed as a semi-ellipse. The tangent plane of the semicircular portion 1613 is connected to the tangent plane of the semi-elliptical portion 1614, and the tangent plane of the semicircular portion 1613 is consistent with the tangent plane of the semi-elliptical portion 1614.

[0104] It should be noted that the distance from the edge of the semicircular part 1613 to the center axis of the first connecting rod 1611 is different from the distance from the edge of the semi-elliptical part 1614 to the center axis of the first connecting rod 1611; thus, by rotating the first fixing part 161, the position of the edge of the first cam 1612 abutting the double-travel memory material layer 140 is switched; or by rotating the second fixing part 162, the position of the edge of the second cam 1622 abutting the double-travel memory material layer 140 is switched; or the first fixing part 161 and the second fixing part 162 are rotated at the same time, and the position of the edge abutting the double-travel memory material layer 140 is switched; and then the width of the double-travel memory material layer 140 is adjusted, and then the support height of the double-travel memory material layer 140 is adjusted.

[0105] It should be noted that in other embodiments, the cross section of the semicircular part 1613 can include a semicircular segment and a straight edge, and when the circumference of a circle is J, the arc length of the semicircular segment can be J / 2, 2J / 3, 3J / 4, 4J / 5, etc. The cross section of the semi-elliptical part 1614 can include a semi-elliptical segment and a straight edge, and the length of the straight edge of the cross section of the semi-elliptical part 1614 is the same as that of the straight edge of the cross section of the semicircular part 1613.

[0106] In other embodiments, the cross section of the first cam 1612 can also be formed into a rectangle, and by switching the long straight edge and the short straight edge abutting the double-travel memory material layer 140, the width of the double-travel memory material layer 140 can be adjusted, and then the support height of the double-travel memory material layer 140 is adjusted.

[0107] In other embodiments, the cross section of the first cam 1612 can also be formed into other shapes, as long as the edge of the first cam 1612 has a first abutting end and a second abutting end, the first abutting end abuts one side of the double-travel memory material layer 140, and the second abutting end abuts the other side of the double-travel memory material layer 140, and the distance from the first abutting end to the center axis of the first connecting rod 1611 is different from the distance from the second abutting end to the center axis of the first connecting rod 1611.

[0108] In some embodiments of the present application, please refer to Figure 17 , Figure 17A structural schematic diagram of a folding screen assembly is provided for some other embodiments of the present application. The folding screen assembly 100 can further include a self-healing material coating 170 disposed on a side of the folding screen 110 away from the support device 122, and the self-healing material coating 170 has the same light transmittance as the folding screen 110. It should be noted that the side of the folding screen 110 away from the support device 122 is the display side of the folding screen 110. During long-term use of the folding screen 110, the display side of the bendable part 113 can be wrinkled or scratched, affecting the display effect of the bendable part 113 and the user experience. Therefore, the self-healing material coating 170 is disposed on the display side of the bendable part 113. Since the self-healing material coating 170 has the characteristic of restoring the initial state, the phenomenon of fatigue damage and scratching of the display side of the folding screen 110 is improved.

[0109] Specifically, the display side of the folding screen 110 is provided with a screen protection layer, the screen protection layer of the bendable part 113 is replaced with the self-healing material coating 170, and the light transmittance of the self-healing material coating 170 is the same as that of the screen protection layer. In this way, on the one hand, the display effect of the folding screen 110 is ensured, and on the other hand, the occurrence of wrinkles and scratches of the bendable part 113 is avoided.

[0110] The material of the self-healing material coating 170 can be polyurethane with the same light transmittance as the screen protection layer.

[0111] In the description of the present application, specific features, structures, materials or characteristics can be combined in any one or more embodiments or examples in a suitable manner.

[0112] Finally, it should be noted that: the above embodiments are only used to illustrate the technical solutions of the present application, and not to limit them; although the present application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that: it can still modify the technical solutions recorded in the foregoing embodiments, or make equivalent replacement for part of the technical features; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the spirit and scope of the technical solutions of the embodiments of the present application.

Claims

1. A folding screen assembly comprising: The application relates to a folding screen, which comprises a foldable part, a rotating support device, a filling groove and a self-healing material layer. The rotating device is connected to the support device and is arranged close to one side of the folding screen. The rotating device can drive the folding screen to fold, so that the folding screen can be switched between a flat state and a folded state. The support device is used for supporting the foldable part. The self-healing material layer is arranged between the foldable part and the support device and supports the foldable part. The self-healing material layer has an initial state and a deformed state. During the switching process of the folding screen from the flat state to the folded state, the foldable part is deformed to press the self-healing material layer, the self-healing material layer is deformed to be switched from the initial state to the deformed state, and at least part of the self-healing material layer is inserted into the filling groove. During the switching process of the folding screen from the folded state to the flat state, the foldable part removes the pressing of the self-healing material layer, the self-healing material layer is elastically recovered to be switched from the deformed state to the initial state. A double-path memory material layer is arranged between the self-healing material layer and the foldable part of the folding screen.

2. The folding screen assembly of claim 1, wherein, The double-path memory material layer has a double-path shape memory effect and comprises a first shape and a second shape.

3. The folding screen assembly of claim 1, wherein, When the folding screen is switched from the flat state to the folded state, the foldable part is deformed to press the double-path memory material layer, and the double-path memory material layer is deformed from the first shape to the second shape.

4. The folding screen assembly of claim 1, wherein, When the folding screen is switched from the folded state to the flat state, the foldable part removes the pressing of the double-path memory material layer, and the double-path memory material layer is switched from the second shape to the first shape. A set or multiple sets of adjusting components are arranged on both sides of the double-path memory material layer. The adjusting components can adjust the support height of the double-path memory material layer by adjusting the width of the double-path memory material layer, so as to adjust the gap size between the self-healing material layer and the folding screen. The support device is provided with an avoiding groove close to one side of the folding screen, and the filling groove is arranged on the inner wall of the avoiding groove. The double-path memory material layer is formed in a wave shape, at least one wave crest of the double-path memory material layer is in contact with the foldable part, and at least one wave trough of the double-path memory material layer is in contact with the self-healing material layer. The material of the double-path memory material layer is a nickel-titanium double-path memory alloy or a Cu-Zn-Al double-path memory alloy.

5. The folding screen assembly of claim 1, wherein, The adjusting assembly comprises a first fixing member and a second fixing member, the first fixing member is arranged on one side of the double-way memory material layer, and the second fixing member is arranged on the other side of the double-way memory material layer. The first fixing member and the second fixing member are both abutted on the double-way memory material layer.

6. The folding screen assembly of claim 5, wherein, The first fixing member comprises a first connecting rod and a first cam, the first cam is fixedly connected to one end of the first connecting rod, the other end of the first connecting rod is connected to the rotating device, and the first cam is abutted on one side of the double-way memory material layer. And / or, the second fixing member comprises a second connecting rod and a second cam, the second cam is fixedly connected to one end of the second connecting rod, the other end of the second connecting rod is connected to the rotating device, and the second cam is abutted on the other side of the double-way memory material layer.

7. The folding screen assembly of claim 6, wherein, The profile line of the first cam comprises a semicircle segment and a semi-ellipse segment, two ends of the semicircle segment are connected to two ends of the minor axis of the semi-ellipse segment, or two ends of the semicircle segment are connected to two ends of the major axis of the semi-ellipse segment.

8. The folding screen assembly of claim 6, wherein, The profile line of the second cam comprises a semicircle segment and a semi-ellipse segment, two ends of the semicircle segment are connected to two ends of the minor axis of the semi-ellipse segment, or two ends of the semicircle segment are connected to two ends of the major axis of the semi-ellipse segment.

9. The folding screen assembly of any one of claims 1-8, wherein, Further comprising: A self-healing material coating is arranged on the bendable part of the folding screen, and the self-healing material coating is arranged on the side of the folding screen away from the supporting device; The folding screen comprises a screen protection layer located on the side of the folding screen away from the supporting device, and the light transmittance of the self-healing material coating is the same as that of the screen protection layer.

10. The folding screen assembly of any one of claims 1-8, wherein, Further comprising: An elastic connecting layer is arranged between the double-way memory material layer and the bendable part, one side of the elastic connecting layer is in contact with the bendable part, and the other side is in contact with the self-healing material layer.

11. The folding screen assembly of claim 10, wherein, The material of the elastic connecting layer is rubber.

12. The folding screen assembly of claim 2, wherein, A plurality of filling grooves are arranged in the avoiding groove.

13. The folding screen assembly of any one of claims 1-8, wherein, The material of the self-healing material layer is epoxy resin or polyurethane.

14. The folding screen assembly of any one of claims 1-8, wherein, The rotating device comprises a first rotating shaft and a second rotating shaft, and a first middle frame and a second middle frame; The first middle frame is rotationally connected to the first rotating shaft, the second middle frame is rotationally connected to the second rotating shaft, and the two ends of the folding screen are respectively connected to the first middle frame and the second middle frame.

15. An electronic device, comprising: Comprise: A back plate; And the folding screen assembly of any one of claims 1-14, the back plate is arranged on the side of the folding screen assembly away from the folding screen.

Images