Folding screen supporting mechanism and display device

Abstract

The application discloses a folding screen supporting mechanism and a display device, and relates to the technical field of folding display screens. The folding screen supporting mechanism comprises a base, a supporting piece, a sensing control unit and an actuating assembly. The base is embedded in a flexible display screen. The supporting piece is movably connected to the base. The sensing control unit is arranged on the base. The actuating assembly is connected with the supporting piece and electrically connected with the sensing control unit. When the sensing control unit detects that the flexible display screen in a folded state is unfolded, the sensing control unit is used for sending an unfolding signal to the actuating assembly. The actuating assembly is used for driving the supporting piece to move from a storage state to an unfolding state after receiving the unfolding signal, so as to support the unfolded flexible display screen through the supporting piece. According to the scheme, the supporting piece of the folding screen supporting mechanism supports the unfolded flexible display screen, the bending position of the flexible display screen is more flat, and problems such as display picture distortion and touch control operation precision reduction can be reduced.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of folding display screen, in particular to a folding screen supporting mechanism and a display device. BACKGROUND

[0002] With the development of electronic display devices towards thin and flexible, foldable flexible display screens are gradually applied to various terminal devices. At present, the mainstream flexible folding display devices on the market generally use traditional hinge mechanisms to realize the folding and unfolding functions of flexible display screens, which can meet the basic functional requirements of folding and unfolding display of display devices.

[0003] However, the traditional hinge mechanism has significant technical defects in actual application. When the flexible display screen is unfolded from the folded state to the flat state, due to the limitation of the hinge mechanical structure, the bending position of the flexible display screen will usually appear obvious unevenness, which will cause the display picture to be distorted, the touch control operation precision to be reduced, and other problems, and negatively affect the user's experience. SUMMARY

[0004] The main purpose of the present application is to provide a folding screen supporting mechanism, which aims to solve the technical problems that the folding and unfolding operations of the current flexible display screen depend on the hinge mechanism, and the bending position of the flexible display screen usually appears obvious unevenness, thereby causing the display picture to be distorted and the touch control operation precision to be reduced.

[0005] To achieve the above-mentioned purpose, the folding screen supporting mechanism provided by the present application comprises:

[0006] a base for being embedded in the flexible display screen;

[0007] a support member movably connected to the base;

[0008] a sensing control unit arranged on the base;

[0009] an actuating assembly connected with the support member, and the actuating assembly is electrically connected with the sensing control unit; when the sensing control unit detects that the flexible display screen in the folded state is unfolded, the sensing control unit is used to send an unfolding signal to the actuating assembly; the actuating assembly is used to drive the support member to move from the storage state to the unfolded state after receiving the unfolding signal, so as to support the unfolded flexible display screen through the support member.

[0010] In an embodiment, the support member is provided as a support arm rotatably connected to the base; the actuating assembly comprises an elastic member and a magnetic member, one end of the elastic member is connected to the base, the other end of the elastic member is connected to the support arm, and the magnetic member is arranged on the support arm; the base is provided with an electromagnetic attraction member electrically connected to the sensing control unit;

[0011] When the flexible display screen is in the folded state, the electromagnetic attraction member is attracted to the magnetic member, and the elastic member is in a compressed state; the electromagnetic attraction member loses magnetism after receiving the unfolding signal, so that the elastic member releases elastic potential energy and drives the support arm to rotate to the unfolded state.

[0012] In an embodiment, the first end of the support arm is rotatably connected to the base, and the magnetic member is arranged at the second end of the support arm;

[0013] When the support arm rotates to the unfolded state, the magnetic member of one of the support arms is used to be attracted to the magnetic member of the other support arm.

[0014] In an embodiment, the base is provided with a limiting portion; when the support arm rotates to the unfolded state along a first direction, the limiting portion abuts against the support arm to prevent the support arm from continuing to rotate along the first direction, and to keep the elastic member in a compressed state.

[0015] In an embodiment, the base has a protruding structure, opposite sides of the protruding structure form a first inclined portion and a second inclined portion respectively; the support arm comprises at least a first arm body and a second arm body, the first arm body and the second arm body are both provided with the magnetic member, and the first end of the first arm body and the first end of the second arm body are rotatably connected to the end of the protruding structure;

[0016] When the electromagnetic attraction member is attracted to the magnetic member, the second end of the first arm body is attached to the first inclined portion, and the second end of the second arm body is attached to the second inclined portion.

[0017] In an embodiment, the folding screen support mechanism further comprises a pressure sensing device electrically connected to the sensing control unit, and the pressure sensing device is used to detect the pressure acting force received by the support arm in the unfolded state.

[0018] When the pressing force exceeds a preset pressure threshold, the sensing control unit is configured to alternately send a receiving signal and the unfolding signal to the electromagnetic attraction member; the electromagnetic attraction member is magnetized after receiving the receiving signal, so that the electromagnetic attraction member is attracted to the magnetic member, thereby driving the support arm to rotate to the receiving state against the elastic force of the elastic member.

[0019] In an embodiment, the sensing control unit comprises a tag identification module and a master control module, the tag identification module has an identification area, the tag identification module is electrically connected with the master control module, and the master control module is electrically connected with the actuating assembly.

[0020] The flexible display screen comprises a tag instruction layer; during the unfolding process of the flexible display screen, the coverage area of the tag instruction layer in the identification area gradually increases; the tag identification module is configured to send an identification achievement signal to the master control module when the coverage area reaches a preset identification condition; and the master control module is configured to send the unfolding signal to the actuating assembly after receiving the identification achievement signal.

[0021] The application further provides a display device, which comprises a flexible display screen and the folding screen support mechanism as described above.

[0022] In an embodiment, the flexible display screen comprises a flexible screen body, a first elastic layer, a second elastic layer, and at least two electronic element layers; the at least two electronic element layers are clamped between the first elastic layer and the second elastic layer, the spacing area between the at least two electronic element layers forms a folding space, and the flexible screen body is arranged on the side of the first elastic layer away from the second elastic layer.

[0023] The display device comprises at least two folding screen support mechanisms, and the at least two folding screen support mechanisms are arranged in the folding space at intervals; the support member of each folding screen support mechanism is configured to support the first elastic layer and / or the second elastic layer in the unfolded state.

[0024] In an embodiment, the support member is arranged as a support arm, the first end of the support arm is rotatably connected to the base of the folding screen support mechanism, and the second end of the support arm is provided with a magnetic member.

[0025] When the support arm of each folding screen support mechanism rotates to the unfolded state, the magnetic member of each folding screen support mechanism is configured to be attracted to the magnetic member of another adjacent folding screen support mechanism.

[0026] The folding screen supporting mechanism provided in the application can replace the traditional hinge mechanism to realize the folding and unfolding operations of the flexible display screen; when the flexible display screen is in the folded state, the supporting pieces are in the storage state relative to the base and do not contact the functional film layers in the flexible display screen, so as to avoid interference with the unfolding operation of the flexible display screen; when the flexible display screen is unfolded, the sensing control unit continuously detects the unfolding state of the flexible display screen; when the sensing control unit determines that the flexible display screen has been completely unfolded through the corresponding detection data, the sensing control unit will send an unfolding signal to the actuating assembly to trigger the actuating assembly to drive each supporting piece in the storage state to unfold relative to the base; when all the supporting pieces are driven by the actuating assembly to move relative to the base to the unfolded state, the supporting pieces will be attached to the overhanging parts of the corresponding functional film layers, at this time, the supporting pieces can form additional supporting action on the folding position of the flexible display screen, and can exert appropriate external force on the overhanging parts of the functional film layers, so as to reduce the unevenness problem of the folding position caused by the existence of wrinkles and collapse, ensure the flatness of the folding position, thereby reducing the problems of distorted display picture and decreased touch control operation precision, and improving the user experience. BRIEF DESCRIPTION OF DRAWINGS

[0027] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the following will briefly introduce the drawings needed to be used in the embodiments or the prior art description. Obviously, the drawings in the following description only some embodiments of the present application, and for those skilled in the art, other drawings can be obtained without creative labor on the basis of the drawings shown.

[0028] Figure 1 The cross-sectional structure schematic diagram of the folding screen supporting mechanism provided in the application is shown in an embodiment in which all supporting pieces are in the storage state;

[0029] Figure 2 The front view structure schematic diagram of the folding screen supporting mechanism provided in the application is shown in an embodiment in which part of the supporting pieces are in the unfolded state;

[0030] Figure 3 The front view structure schematic diagram of the folding screen supporting mechanism provided in the application is shown in an embodiment in which all supporting pieces are in the unfolded state;

[0031] Figure 4 The front view structure schematic diagram of the display device provided in the application is shown in an embodiment in which the flexible display screen is in the unfolded state;

[0032] Figure 5 The cross-sectional structure schematic diagram of the display device provided in the application is shown in an embodiment in which the flexible display screen is in the folded state;

[0033] Figure 6A cross-sectional structure schematic diagram of a flexible display screen in an unfolded state in an embodiment of a display device provided in the present application is shown in the figure.

[0034] Figure 7 For Figure 6 An enlarged schematic diagram at A in the figure.

[0035] Explanation of reference numerals:

[0036] 1000, folding screen supporting mechanism;

[0037] 2000, flexible display screen; 2100, folding position; 2200, flexible screen body; 2300, first elastic layer; 2400, second elastic layer; 2500, electronic element layer; 2600, folding space; 2700, sealing layer; 2800, camera module; 2900, tag instruction layer;

[0038] 1, base; 11, limiting part; 12, protruding structure; 121, first inclined part; 122, second inclined part;

[0039] 2, supporting piece; 21, supporting arm; 21a, first arm body; 21b, second arm body; 211, matching part;

[0040] 3, sensing control unit; 31, tag identification module; 32, main control module;

[0041] 4, actuating assembly; 41, elastic piece; 42, magnetic piece;

[0042] 5, electromagnetic attraction piece; 6, rotating shaft; 7, power supply assembly; 8, first magnet; 9, second magnet.

[0043] The implementation, functional features and advantages of the present application will be further described with reference to the embodiments and the accompanying drawings. DETAILED DESCRIPTION

[0044] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only some of the embodiments of the present application, but not all the embodiments of the present application. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative work fall within the scope of protection of the present application.

[0045] It should be noted that if the present application involves directional indications (such as up, down, left, right, front, back, etc.) in the embodiments, the directional indications are only used to explain the relative position relationship, movement condition, etc. between the components in a certain posture, and if the certain posture changes, the directional indications will also change accordingly.

[0046] In addition, if the description of "first", "second" and the like is involved in the embodiments of the present application, the description of "first", "second" and the like is only for the purpose of description, and cannot be understood as indicating or implying the relative importance of the indicated technical features or implicitly indicating the number of the indicated technical features. Therefore, the features limited by "first", "second" can be explicitly or implicitly included at least one of the features. In addition, if "and / or" or "and / or" appears throughout the text, it means that the three parallel schemes are included, for example, "A and / or B" includes A scheme, or B scheme, or A and B scheme. In addition, the technical solutions of each embodiment can be combined with each other, but it must be based on the realization of the ordinary skilled in the art, when the combination of technical solutions appears contradictory or unachievable, it should be considered that the combination of technical solutions does not exist, nor in the protection scope claimed by the present application.

[0047] With the development of electronic display devices towards light and thin, flexible, foldable flexible display screens are gradually applied to various terminal devices. At present, the mainstream flexible folding display device in the market generally uses traditional hinge mechanism to realize the folding and unfolding function of flexible display screen, which can meet the basic functional requirements of folding and unfolding display of display device.

[0048] However, the traditional hinge mechanism has significant technical defects in actual application. When the flexible display screen is unfolded from the folded state to the flat state, due to the limitation of hinge mechanical structure, the bending position of the flexible display screen will usually appear obvious uneven phenomenon, which will cause the display picture distortion, touch control operation precision decline and other problems, and cause negative impact on the user experience.

[0049] In order to solve the above problems, the present application provides a folding screen supporting mechanism, which can replace the traditional hinge mechanism to realize the folding and unfolding operation of the flexible display screen. When the flexible display screen is unfolded, the supporting member of the folding screen supporting mechanism can be unfolded and form a supporting action on the flexible display screen, so that the bending position of the flexible display screen is more flat, thereby reducing the display picture distortion, touch control operation precision decline and other problems, and improving the user experience.

[0050] Please refer to Figures 1 to 3 , and auxiliary reference Figures 4 to 6 , an embodiment of the present application provides a folding screen supporting mechanism 1000, comprising:

[0051] The base 1 is used for embedding in the flexible display screen 2000;

[0052] The supporting member 2 is movably connected to the base 1;

[0053] The sensing control unit 3 is arranged on the base 1;

[0054] The actuating assembly 4 is connected with the support 2 and is electrically connected with the sensing control unit 3; when the sensing control unit 3 detects that the flexible display screen 2000 in the folded state is unfolded, the sensing control unit 3 is configured to send an unfolding signal to the actuating assembly 4; the actuating assembly 4 is configured to drive the support 2 to move from the storage state to the unfolded state after receiving the unfolding signal, so as to support the unfolded flexible display screen 2000 by the support 2.

[0055] In the embodiment, the flexible display screen 2000 can include a plurality of functional film layers which are stacked and have a flexible folding function, such as a display layer, an element layer, and a structure layer for partitioning, etc.; the display layer which is located at the outermost side is configured to display images and pictures; and an appropriate empty area, referred to as a folding space 2600, can be reserved between each functional film layer. The folding space 2600 is located at the folding position 2100 of the flexible display screen 2000, and the folding screen support mechanism 1000 can be correspondingly arranged in the folding space 2600. The base 1 of the folding screen support mechanism 1000 is a fixed part, and the base 1 is configured to be attached to the overhanging part of the functional film layer in the folding space 2600 to form a basic support function, so as to avoid the collapse of the folding space 2600 while not affecting the folding and unfolding operations of the flexible display screen 2000 at the position.

[0056] The support 2 can be arranged in multiple numbers and movably connected to the base 1 to move relative to the base 1 along a preset movement track. For example, the support 2 can be slidably fitted on the base 1 along a straight path, or the support 2 can be hingedly connected to the base 1 about an axis, which is not limited herein. When the support 2 is in the storage state relative to the base 1, the support 2 can be attached to the surface of the base 1 and not in contact with the functional film layer in the flexible display screen 2000, so as to avoid interference with the folding and unfolding operations of the flexible display screen 2000; and when the support 2 is moved to the unfolded state relative to the base 1, the support 2 will be attached to the overhanging part of the functional film layer in the folding space 2600, so as to form an additional support function for the folding position 2100 of the flexible display screen 2000 in the unfolded state of the flexible display screen 2000, and to apply an appropriate external force to the overhanging part of the functional film layer, so as to reduce the unevenness problem of the folding position 2100 caused by wrinkles and collapse, and to ensure the flatness of the folding position 2100.

[0057] The sensing control unit 3 can be accommodated in the interior of the base 1, and can include a sensor and a controller. Since the shape, distance, pressure and other parameters of the corresponding part of the flexible display screen 2000 are different in the folded state and the unfolded state, the sensor can recognize the motion state of the flexible display screen 2000 based on the above differences through image recognition, distance detection, pressure detection and other means, to automatically determine whether the flexible display screen 2000 is unfolded. The controller can be selected from a control chip with basic functions such as data storage, signal input and output, numerical comparison, and logical judgment, for example, an MCU (Microcontroller Unit) microcontroller unit; when the detection data obtained by the sensor meets the preset parameter condition pre-stored in the controller, the controller determines that the flexible display screen 2000 is in the unfolded state at this time, and the controller can send an unfolding signal to the actuating assembly 4 in the form of an electrical signal to trigger the actuating assembly 4 to perform corresponding operations.

[0058] The actuating assembly 4 can adopt any device with driving function and its combination form, for example, a motor, a cylinder, a spring, a magnet and the like and their combinations, to realize the driving action on the support 2, which is not limited here. After receiving the unfolding signal sent by the sensing control unit 3, the actuating assembly 4 can automatically drive the support 2 in the storage state to move to the unfolded state, so as to form additional support on the folding position 2100 of the unfolded flexible display screen 2000 by the support 2.

[0059] The functional modules in the embodiment, such as the sensing control unit 3 and the actuating assembly 4, which need to be driven by energy, can be powered by the power supply assembly 7 built in the base 1, to ensure stable operation.

[0060] Based on the above setting, during the unfolding process of the flexible display screen 2000, the complete working process of the folding screen support mechanism 1000 is as follows:

[0061] As shown in Figure 1 and Figure 5 , the flexible display screen 2000 is in the folded state, and at this time the support 2 is also in the storage state relative to the base 1, and the support 2 can be attached to the surface of the base 1 and does not contact the functional film layer in the flexible display screen 2000, to avoid interference with the unfolding action of the flexible display screen 2000; when the flexible display screen 2000 is unfolded, the sensing control unit 3 continuously detects the unfolding state of the flexible display screen 2000; when the sensing control unit 3 determines through the corresponding detection data that the flexible display screen 2000 has been completely unfolded to the state as shown in Figure 4 and Figure 6 , the sensing control unit 3 will send an unfolding signal to the actuating assembly 4 to trigger the actuating assembly 4 to drive each support 2 in the storage state to unfold relative to the base 1 to the state as shown in Figure 2 ; asFigure 3 As shown, when all the support members 2 are driven by the actuating assembly 4 to move relative to the base 1 to the unfolded state, the support members 2 will be in contact with the overhanging portions of the corresponding functional film layers, at this time, the support members 2 can form additional support to the folding position 2100 of the flexible display screen 2000, and can exert appropriate external force to the overhanging portions of the functional film layers, so as to reduce the unevenness problem of the folding position 2100 caused by the existence of wrinkles and collapse, ensure the flatness of the folding position 2100, thereby reducing the problems of display picture distortion, touch operation precision decline and the like, and improving the user experience.

[0062] In an embodiment, referring to Figures 1 to 3 , the support member 2 is provided as a support arm 21, which is rotatably connected to the base 1; the actuating assembly 4 includes an elastic member 41 and a magnetic member 42, one end of the elastic member 41 is connected to the base 1, the other end of the elastic member 41 is connected to the support arm 21, and the magnetic member 42 is arranged on the support arm 21; the base 1 is provided with an electromagnetic attraction member 5, which is electrically connected to the sensing control unit 3.

[0063] When the flexible display screen 2000 is in the folded state, the electromagnetic attraction member 5 is attracted to the magnetic member 42, and the elastic member 41 is in a compressed state; after receiving an unfolding signal, the electromagnetic attraction member 5 loses magnetism, so that the elastic member 41 releases the elastic potential energy and drives the support arm 21 to rotate to the unfolded state.

[0064] In the present embodiment, one end of the support arm 21 is rotatably connected to the base 1 by a rotating shaft 6 in a hinged manner or the like.

[0065] The elastic member 41 can be a spring, an elastic colloid or the like, one end of the elastic member 41 is connected to the base 1, and the other end of the elastic member 41 is connected to the side of the support arm 21 facing the base 1.

[0066] The magnetic member 42 can be a magnet with fixed magnetic attraction, and the magnetic member 42 is arranged on the side of the support arm 21 facing the base 1. The electromagnetic attraction member 5 can be an electromagnet; when the electromagnetic attraction member 5 is powered, the electromagnetic attraction member 5 is in an excited state, at this time, the electromagnetic attraction member 5 can generate magnetic attraction to the magnetic member 42; when the electromagnetic attraction member 5 loses power, the electromagnetic attraction member 5 is in a demagnetized state, at this time, the electromagnetic attraction member 5 cannot generate magnetic attraction to the magnetic member 42.

[0067] As shown in Figure 1 and Figure 5As shown, when the flexible display screen 2000 is in the folded state, the electromagnetic attraction element 5 is continuously powered and in the magnetized state, the electromagnetic attraction element 5 will generate a magnetic attraction force on the magnetic element 42, the magnetic attraction force is greater than the elastic force of the elastic element 41 applied to the support arm 21, which can ensure that the electromagnetic attraction element 5 and the magnetic element 42 are stably attracted, so that the support arm 21 is attached to the base 1 and is in the storage state, and the elastic element 41 between the support arm 21 and the base 1 is squeezed and is in the compressed state. As shown in Figure 2 、 Figure 3 and Figure 6 As shown, during the unfolding of the flexible display screen 2000, when the sensing control unit 3 detects that the flexible display screen 2000 has been completely unfolded, the sensing control unit 3 sends an unfolding signal to the electromagnetic attraction element 5, the unfolding signal can trigger the corresponding switching element to demagnetize the electromagnetic attraction element 5, at this time the elastic element 41 in the compressed state will release the elastic potential energy, driving the support arm 21 to rotate in the direction away from the base 1 to the unfolded state, so that the unfolded support arm 21 can form a supporting effect on the folding position 2100 of the flexible display screen 2000. Subsequently, when the flexible display screen 2000 is folded again, the electromagnetic attraction element 5 can be powered to enter the magnetized state again, so that the magnetic attraction force between the electromagnetic attraction element 5 and the magnetic element 42 drives the support arm 21 to overcome the elastic force of the elastic element 41 and rotates to the storage state again.

[0068] When the support arm 21 is provided in multiple, one elastic element 41, one magnetic element 42 and one electromagnetic attraction element 5 can be respectively arranged for each support arm 21, so that each set of elastic element 41, magnetic element 42 and electromagnetic attraction element 5 cooperates to drive each support arm 21 to unfold relative to the base 1 when the flexible display screen 2000 is unfolded.

[0069] Based on the form of the actuating assembly 4 in the embodiment, the driving of the support arm 21 can be realized in a simple, low-cost and low-energy consumption manner without the need to set too many power sources, which ensures the stability of the movement of the support arm 21 along the preset path and maintains the rationality of the overall structural layout of the folding screen support mechanism 1000.

[0070] Preferably, referring to Figures 1 to 3 , a first magnet 8 can be arranged on the support arm 21 near the rotating shaft 6, a second magnet 9 can be arranged on the base 1 corresponding to the first magnet 8, and the first magnet 8 can be magnetically attracted to the second magnet 9; the magnetic attraction between the first magnet 8 and the second magnet 9 can be used to assist and compensate the magnetic attraction between the electromagnetic attraction element 5 and the magnetic element 42, so as to ensure that the support arm 21 can overcome the gradually increasing elastic force and stably attach to the base 1 during the process of re-magnetizing the electromagnetic attraction element 5 and rotating the support arm 21 in the direction close to the base 1.

[0071] In an embodiment, with reference to Figure 1 , Figure 2 , Figure 3 , Figure 6 and Figure 7 , the first end of the support arm 21 is rotatably connected to the base 1, and the magnetic member 42 is arranged at the second end of the support arm 21.

[0072] When the support arm 21 is rotated to the unfolded state, the magnetic member 42 of one of the support arms 21 is used to attract the magnetic member 42 of the other support arm 21.

[0073] In the present embodiment, two folding screen support mechanisms 1000 are arranged side by side in the folding space 2600 at the folding position 2100 of the flexible display screen 2000; when the flexible display screen 2000 is completely unfolded, the support arms 21 of the two folding screen support mechanisms 1000 are both rotated to the unfolded state and form a support action on the folding position 2100, at this time, the second end of the support arm 21 of one of the folding screen support mechanisms 1000 is in contact with the second end of the support arm 21 of the other folding screen support mechanism 1000, and the two magnetic members 42 arranged on the two support arms 21 are magnetically attracted, so that the two support arms 21 are connected to form a stable support structure through the magnetic attraction, which can form a stable support action on the folding position 2100 in a longer span range, and can reduce the unstable swing of the end of the support arm 21, thereby further improving the support stability of the support arm 21 and the flatness of the flexible display screen 2000 after unfolding.

[0074] When the number of folding screen support mechanisms 1000 is set to two or more, the plurality of folding screen support mechanisms 1000 can be arranged at intervals in the folding space 2600 at the folding position 2100 of the flexible display screen 2000 as shown in Figures 5 to 7 , the magnetic member 42 on the support arm 21 of each folding screen support mechanism 1000 can be used to magnetically attract the magnetic member 42 on the support arm 21 of the adjacent folding screen support mechanism 1000, so as to connect the plurality of support arms 21 to form a continuous support structure as shown in Figure 7 , thereby forming a continuous support action on the folding position 2100 with a larger span, and ensuring the flatness of the folding position 2100.

[0075] Based on the present embodiment, the magnetic member 42 is used to maintain the storage state of the support arm 21, and is also used to connect between adjacent support arms 21, without the need to additionally provide a connection structure on the support arm 21, thereby realizing the maximum utilization of the corresponding functional devices in the folding screen support mechanism 1000 while ensuring the simplicity of the overall structure.

[0076] In an embodiment, with reference toFigures 1 to 3 The base 1 is provided with a limiting part 11; when the support arm 21 rotates to the unfolded state along the first direction, the limiting part 11 abuts against the support arm 21 to prevent the support arm 21 from continuing to rotate along the first direction, and the elastic member 41 is kept in the compressed state.

[0077] Specifically, the limiting part 11 can be directly provided on the base 1, or can be provided on other components fixed to the base 1 in an indirect manner. For example, as shown in Figures 1 to 3 , the base 1 is provided with a rotating shaft 6, and the first end of the support arm 21 is rotationally connected to the rotating shaft 6; the limiting part 11 can be provided in the form of a boss on the cylindrical surface of the rotating shaft 6, and the first end of the support arm 21 can also be provided with a boss or other matching part 211; after the flexible display screen 2000 is unfolded, when the support arm 21 rotates to a preset angle along the direction away from the base 1 (i.e. the first direction), the matching part 211 on the support arm 21 abuts against the limiting part 11 on the rotating shaft 6, and the limiting part 11 will prevent the support arm 21 from continuing to rotate along the first direction; at this time, the elastic member 41 is still not completely reset and is in a compressed state, and under the elastic force exerted by the elastic member 41, the support arm 21 will be kept in close contact with the limiting part 11; compared with the form in which the elastic member 41 is completely reset, this scheme can retain appropriate elastic force through the limiting action, so as to ensure the position stability of the support arm 21, thereby further improving the support stability of the support arm 21 to the folded position 2100.

[0078] In an embodiment, referring to Figures 1 to 3 , the base 1 has a protruding structure 12, and opposite sides of the protruding structure 12 respectively form a first inclined part 121 and a second inclined part 122; the support arm 21 at least includes a first arm body 21a and a second arm body 21b, and the first arm body 21a and the second arm body 21b are both provided with a magnetic member 42, and the first end of the first arm body 21a and the first end of the second arm body 21b are rotationally connected to the end of the protruding structure 12.

[0079] When the electromagnetic attraction member 5 is attracted to the magnetic member 42, the second end of the first arm body 21a is attached to the first inclined part 121, and the second end of the second arm body 21b is attached to the second inclined part 122.

[0080] Specifically, as shown in Figures 1 to 3The shown orientation is an example, the upper side and the lower side of the base 1 are provided with a protruding structure 12. For the upper side of the protruding structure 12, the left side is inclined downward to form a first inclined portion 121, and the right side is inclined downward to form a second inclined portion 122; the right end of the first arm body 21a and the left end of the second arm body 21b are rotatably connected to the highest position of the protruding structure 12 around the same rotating shaft 6; the first arm body 21a is correspondingly provided with an elastic member 41, a magnetic member 42 and an electromagnetic attraction member 5, and the second arm body 21b is also correspondingly provided with an elastic member 41, a magnetic member 42 and an electromagnetic attraction member 5; as shown in Figure 1 When the first arm body 21a and the second arm body 21b are in the storage state, the electromagnetic attraction member 5 is magnetically attracted to the magnetic member 42, at this time the first arm body 21a is attached to the first inclined portion 121, and the second arm body 21b is attached to the second inclined portion 122, and the right end of the first arm body 21a and the left end of the second arm body 21b are in abutment with the upper functional film layer to form a basic support effect; as shown in Figure 2 and Figure 3 When the first arm body 21a and the second arm body 21b are unfolded upward to the horizontal state under the action of the elastic member 41, the upper side of the first arm body 21a and the upper side of the second arm body 21b are fully attached to the upper functional film layer, which can form a support effect on the part of the functional film layer. Similarly, for the lower side of the protruding structure 12, the left side is inclined upward to form a first inclined portion 121, and the right side is inclined upward to form a second inclined portion 122; the right end of the first arm body 21a and the left end of the second arm body 21b are rotatably connected to the lowest position of the protruding structure 12 around the same rotating shaft 6; the first arm body 21a is correspondingly provided with an elastic member 41, a magnetic member 42 and an electromagnetic attraction member 5, and the second arm body 21b is also correspondingly provided with an elastic member 41, a magnetic member 42 and an electromagnetic attraction member 5; as shown in Figure 1 When the first arm body 21a and the second arm body 21b are in the storage state, the electromagnetic attraction member 5 is magnetically attracted to the magnetic member 42, at this time the first arm body 21a is attached to the first inclined portion 121, and the second arm body 21b is attached to the second inclined portion 122, and the right end of the first arm body 21a and the left end of the second arm body 21b are in abutment with the upper functional film layer to form a basic support effect; as shown in Figure 2 and Figure 3 When the first arm body 21a and the second arm body 21b are unfolded downward to the horizontal state under the action of the elastic member 41, the lower side of the first arm body 21a and the lower side of the second arm body 21b are fully attached to the lower functional film layer, which can form a support effect on the part of the functional film layer.

[0081] Based on the above setting, two first arm bodies 21a and two second arm bodies 21b can be arranged on one base 1 at the same time, and the first arm body 21a and the second arm body 21b can simultaneously form a supporting effect on the functional film layers on the upper and lower sides of the base 1. In addition, when the folding screen supporting mechanism 1000 is arranged as multiple and arranged in the left-right direction as shown in Figure 6 and Figure 7 When any two adjacent folding screen supporting mechanisms 1000 are arranged in the left-right direction, the magnetic member 42 on the second arm body 21b of the folding screen supporting mechanism 1000 on the left side can be magnetically attracted to the magnetic member 42 on the first arm body 21a of the folding screen supporting mechanism 1000 on the right side in the unfolded state of the first arm body 21a and the second arm body 21b, so that the connection between the supporting arms 21 of the two adjacent folding screen supporting mechanisms 1000 can be realized, and a continuous supporting effect on the flexible display screen 2000 can be realized.

[0082] In an embodiment, referring to Figures 1 to 3 , the folding screen supporting mechanism 1000 further comprises a pressure sensing device (not shown in the figure), which is electrically connected with the sensing control unit 3, and is used to detect the pressure effect force borne by the supporting arm 21 in the unfolded state;

[0083] When the pressure effect force exceeds the preset pressure threshold value, the sensing control unit 3 is used to alternately send the accommodation signal and the unfolding signal to the electromagnetic attraction member 5; after receiving the accommodation signal, the electromagnetic attraction member 5 is magnetized, so that the electromagnetic attraction member 5 is attracted to the magnetic member 42, thereby driving the supporting arm 21 to overcome the elastic force of the elastic member 41 and rotate to the accommodation state.

[0084] Specifically, the pressure sensing device can be arranged on the support arm 21, and a preset pressure threshold value can be stored in the controller of the sensing control unit 3. When the sensing control unit 3 determines that the pressure acting force obtained by the pressure sensing device exceeds the preset pressure threshold value in the case that the support arm 21 is unfolded, it indicates that the reaction force of the flexible display screen 2000 acting on the support arm 21 is too large at this time, and the support arm 21 and the flexible display screen 2000 are not in a good abutting state, so it can be inferred that the flexible display screen 2000 may have uneven conditions such as arching, wrinkling, curling, etc. In this case, the sensing control unit 3 will trigger the alternate sending of the storage signal and the unfolding signal to the electromagnetic attraction piece 5, so that the electromagnetic attraction piece 5 repeatedly switches between the excited state and the demagnetized state, thereby driving the support arm 21 to swing back and forth. The support arm 21 can intermittently apply a pressure acting force to the part of the flexible display screen 2000 that has uneven conditions during the swinging process, that is, to form a patting and pushing action on the part of the flexible display screen 2000 that has uneven conditions. During the repeated swinging operation of the support arm 21, the pressure acting force applied by the support arm 21 can gradually flatten the part of the flexible display screen 2000 that has uneven conditions, and at this time the reaction force of the flexible display screen 2000 acting on the support arm 21 will also gradually decrease. When the pressure acting force obtained by the pressure sensing device is lower than the preset pressure threshold value, it can be considered that the folding position 2100 of the flexible display screen 2000 has reached a flat state, at this time the electromagnetic attraction piece 5 will remain in the demagnetized state, and the support arm 21 will stably abut on the flexible display screen 2000 to maintain the current flat state of the unfolded flexible display screen 2000 through the supporting action.

[0085] Based on the above setting, whether the flexible display screen 2000 still has uneven conditions after being unfolded can be determined by pressure detection, and the uneven conditions can be automatically eliminated by the reciprocating swinging of the support arm 21, ensuring that the support arm 21 and the flexible display screen 2000 are in a pressure-appropriate abutting state, thereby improving the flatness effect of the flexible display screen 2000 after being unfolded.

[0086] In an embodiment, referring to Figures 1 to 3 , and with reference to Figures 5 to 7 , the sensing control unit 3 includes a tag identification module 31 and a main control module 32, the tag identification module 31 has an identification area, the tag identification module 31 is electrically connected with the main control module 32, and the main control module 32 is electrically connected with the actuating assembly 4;

[0087] The flexible display screen 2000 comprises a label instruction layer 2900; during the unfolding process of the flexible display screen 2000, the coverage area of the label instruction layer 2900 in the identification area gradually increases; the label identification module 31 is configured to send an identification completion signal to the main control module 32 when the coverage area reaches a preset identification condition; the main control module 32 is configured to send an unfolding signal to the actuating assembly 4 after receiving the identification completion signal.

[0088] Specifically, the main control module 32 can be a control chip with basic functions such as data storage, signal input and output, numerical comparison, and logical judgment, for example, an MCU (Microcontroller Unit) microcontroller unit.

[0089] The label identification module 31 can be a magnetic sensor or a capacitive sensor, and the identification area refers to the effective sensing range of the label identification module 31; the label instruction layer 2900 can be a thin film layer with identifiable physical characteristics, such as a magnetic coating or a patterned conductive layer, to form a non-contact detection interaction with the label identification module 31.

[0090] The label identification module 31 can be arranged inside the base 1; the label instruction layer 2900 can be clamped between other functional film layers of the flexible display screen 2000 and arranged at the folding position 2100 of the flexible display screen 2000; when the flexible display screen 2000 is in a folded state, the label instruction layer 2900 is bent to form an arc-shaped structure, at which time the label instruction layer 2900 cannot be completely unfolded in the identification area of the label identification module 31, i.e., the coverage area of the label instruction layer 2900 in the identification area is small; during the gradual unfolding process of the flexible display screen 2000, the label instruction layer 2900 gradually unfolds from an arc-shaped structure to a planar structure, at which time the coverage area of the label instruction layer 2900 in the identification area gradually increases; when the label instruction layer 2900 is completely unfolded, the label instruction layer 2900 will be completely unfolded in the identification area, i.e., the coverage area of the label instruction layer 2900 in the identification area has reached the preset identification condition of the label identification module 31, and the label identification module 31 can complete the reading of the label instruction layer 2900; after completing the reading, the label identification module 31 will send an identification completion signal to the main control module 32 to trigger the main control module 32 to send an unfolding signal to the actuating assembly 4 in the form of an electrical signal, thereby triggering the actuating assembly 4 to drive the support 2 to move to an unfolded state to support the flexible display screen 2000.

[0091] The present embodiment realizes detection interaction with the label recognition module 31 through the geometric shape change of the label instruction layer 2900, can accurately recognize and detect the unfolding state of the flexible display screen 2000 under the premise of non-contact, and ensures that the support 2 is timely started after the flexible display screen 2000 is completely unfolded; the non-contact detection method can avoid the interference and wear problem of the traditional mechanical detection, and further simplifies the structure, reduces the cost, and is more conducive to large-scale production.

[0092] The present application also provides a display device, please refer to Figures 1 to 7 The display device includes a flexible display screen 2000 and the folding screen support mechanism 1000 in any of the above embodiments.

[0093] In the present embodiment, the display device can include a foldable terminal device with display function such as a mobile phone, a tablet computer, etc. The flexible display screen 2000 is the core display component of the display device, which together with the folding screen support mechanism 1000 constitutes the main body of the display device. The flexible display screen 2000 can include a plurality of functional film layers with flexible folding function arranged in layers, such as display layer, element layer and structure layer for separation, etc.; among them, the display layer is the outermost, which is used for displaying images and pictures; appropriate vacant area can be reserved between each functional film layer, which is called folding space 2600, the folding space 2600 is located at the folding position 2100 of the flexible display screen 2000, and the folding screen support mechanism 1000 can be correspondingly arranged in the folding space 2600.

[0094] The specific structure of the folding screen supporting mechanism 1000 is described above. Since the display device in this embodiment adopts all the technical solutions of the above-mentioned embodiments, it has all the beneficial effects brought by the technical solutions of the above-mentioned embodiments, that is, the folding screen supporting mechanism 1000 can replace the traditional hinge mechanism to realize the folding and unfolding operations of the flexible display screen 2000; when the flexible display screen 2000 is in the folded state, the support 2 is in the storage state relative to the base 1 and does not contact the functional film layer in the flexible display screen 2000, so as to avoid interference with the unfolding operation of the flexible display screen 2000; when the flexible display screen 2000 is unfolded, the sensing control unit 3 continuously detects the unfolding state of the flexible display screen 2000; when the sensing control unit 3 determines through the corresponding detection data that the flexible display screen 2000 has been completely unfolded, the sensing control unit 3 will send an unfolding signal to the actuating assembly 4 to trigger the actuating assembly 4 to drive each support 2 in the storage state to unfold relative to the base 1; when all the supports 2 are driven by the actuating assembly 4 to move relative to the base 1 to the unfolded state, the support 2 will be attached to the overhanging part of the corresponding functional film layer, at which time the support 2 can form an additional supporting action on the folding position 2100 of the flexible display screen 2000 and can exert a proper external force on the overhanging part of the functional film layer, so as to reduce the unevenness problem of the folding position 2100 caused by the existence of wrinkles and collapse, ensure the flatness of the folding position 2100, thereby reducing the problems of distorted display picture, decreased touch control operation accuracy and the like, and improving the user experience.

[0095] In an embodiment, referring to Figures 5 to 7 , the flexible display screen 2000 includes a flexible screen body 2200, a first elastic layer 2300, a second elastic layer 2400, and at least two electronic element layers 2500; the at least two electronic element layers 2500 are clamped between the first elastic layer 2300 and the second elastic layer 2400, the spacing area between the at least two electronic element layers 2500 forms a folding space 2600, and the flexible screen body 2200 is arranged on the side of the first elastic layer 2300 away from the second elastic layer 2400.

[0096] The display device includes at least two folding screen supporting mechanisms 1000, and the at least two folding screen supporting mechanisms 1000 are arranged in the folding space 2600 at intervals; the support 2 of each folding screen supporting mechanism 1000 is used to support the first elastic layer 2300 and / or the second elastic layer 2400 in the unfolded state.

[0097] In the embodiment, the flexible display screen 2000 adopts a multi-layer composite laminated structure. Specifically, the flexible display screen 2000 comprises a flexible screen body 2200, a first elastic layer 2300, a second elastic layer 2400, and at least two electronic element layers 2500. The first elastic layer 2300 and the second elastic layer 2400 can be made of elastic materials such as polyimide and silica gel. The first elastic layer 2300 and the second elastic layer 2400 respectively serve as the upper and lower substrates of the flexible display screen 2000. The at least two electronic element layers 2500 are clamped between the first elastic layer 2300 and the second elastic layer 2400. The electronic element layers 2500 can include a driving circuit layer, a touch sensing layer, and the like. The first elastic layer 2300 and the second elastic layer 2400 serve as the protective carriers of the electronic element layers 2500. They can utilize their elastic deformation capability to buffer the mechanical stress generated in the folding and unfolding process, thereby avoiding problems such as breakage and poor contact of the corresponding elements and modules in the electronic element layers 2500 due to the bending effect.

[0098] The spacing regions between the electronic element layers 2500 are set as folding spaces 2600. The folding spaces 2600 can provide mounting and movement areas for the folding screen support mechanisms 1000. The size of the folding spaces 2600 matches the shape of the folding screen support mechanisms 1000. The folding spaces 2600 not only meet the deformation requirements of the flexible display screen 2000 when it is folded, but also provide sufficient movement space for the folding and unfolding of the folding screen support mechanisms 1000. The flexible screen body 2200 is arranged on the side of the first elastic layer 2300 away from the second elastic layer 2400, serving as a visual display interface.

[0099] The at least two folding screen support mechanisms 1000 are arranged in the folding spaces 2600 at intervals. The base 1 of each folding screen support mechanism 1000 is fixed to the inner wall of the folding space 2600 (i.e., the inner side wall of the first elastic layer 2300 and the inner side wall of the second elastic layer 2400). When the flexible display screen 2000 is in a folded state, the support member 2 is accommodated in the base 1. The support member 2 is in a non-contact state with the first elastic layer 2300 and the second elastic layer 2400, thereby avoiding interference. When the flexible display screen 2000 is unfolded, the sensing control unit 3 triggers the actuating assembly 4. The actuating assembly 4 drives the support member 2 to unfold, so that the end of the support member 2 is in contact with the inner side wall of the first elastic layer 2300 and the inner side wall of the second elastic layer 2400, thereby forming a rigid support for the first elastic layer 2300 and the second elastic layer 2400.

[0100] Based on the above setting, the folding space 2600 formed between each electronic element layer 2500 is taken as the mounting area of the folding screen support mechanism 1000, which can avoid interference between the folding screen support mechanism 1000 and the electronic element layer 2500, and ensure the compact internal layout of the flexible display screen 2000; in addition, the multiple folding screen support mechanisms 1000 arranged at intervals can realize orderly layout in the folding space 2600, and can form uniform multi-point rigid support when the flexible display screen 2000 is unfolded, ensuring the flatness of the flexible display screen 2000 after unfolding.

[0101] Preferably, referring to Figures 5 to 7 , the flexible display screen 2000 further comprises a sealing layer 2700, which is arranged between the folding space 2600 and the electronic element layer 2500. The sealing layer 2700 can form a shielding effect on the folding space 2600, which can avoid the adverse effects of external factors on the normal operation of the folding screen support mechanism 1000 in the folding space 2600, and can also avoid interference of the folding screen support mechanism 1000 with the electronic element layer 2500.

[0102] Preferably, referring to Figures 5 to 7 , the flexible display screen 2000 further comprises a camera module 2800, which is arranged on the side of the second elastic layer 2400 away from the first elastic layer 2300. The camera module 2800 can be electrically connected with the master control module 32 to convert the obtained optical image signal into an electrical signal and store it in the master control module 32 for subsequent calling.

[0103] In an embodiment, referring to Figures 5 to 7 , and with reference to Figures 1 to 3 , the support member 2 is arranged as a support arm 21, the first end of the support arm 21 is rotatably connected to the base 1 of the folding screen support mechanism 1000, and the second end of the support arm 21 is provided with a magnetic member 42.

[0104] When the support arm 21 of each folding screen support mechanism 1000 is rotated to the unfolded state, the magnetic member 42 of each folding screen support mechanism 1000 is used to attract the magnetic member 42 of the adjacent other folding screen support mechanism 1000.

[0105] In the embodiment, one end of the support arm 21 is rotatably connected to the base 1 through the rotating shaft 6 in a hinged manner or the like. The elastic member 41 can be a spring, an elastic colloid or the like, one end of the elastic member 41 being connected to the base 1, and the other end of the elastic member 41 being connected to the side of the support arm 21 facing the base 1. The magnetic member 42 can be a magnet having a fixed magnetic attraction, and the magnetic member 42 is arranged on the side of the support arm 21 facing the base 1. The electromagnetic attraction member 5 can be an electromagnet; when the electromagnetic attraction member 5 is powered on, the electromagnetic attraction member 5 is in an excited state, at which time the electromagnetic attraction member 5 can generate a magnetic attraction to the magnetic member 42; when the electromagnetic attraction member 5 is powered off, the electromagnetic attraction member 5 is in a demagnetized state, at which time the electromagnetic attraction member 5 cannot generate a magnetic attraction to the magnetic member 42.

[0106] As shown in Figure 1 and Figure 5 , when the flexible display screen 2000 is in the folded state, the electromagnetic attraction member 5 is continuously powered on and in the excited state, the electromagnetic attraction member 5 will generate a magnetic attraction to the magnetic member 42, the magnetic attraction force being greater than the elastic force of the elastic member 41 applied to the support arm 21, which can ensure that the electromagnetic attraction member 5 and the magnetic member 42 are stably attracted, so that the support arm 21 is attached to the base 1 and is in the storage state, and the elastic member 41 between the support arm 21 and the base 1 is squeezed and is in the compressed state. As shown in Figure 2 、 Figure 3 、 Figure 6 and Figure 7 , in the process of unfolding the flexible display screen 2000, when the sensing control unit 3 detects that the flexible display screen 2000 has been completely unfolded, the sensing control unit 3 sends an unfolding signal to the electromagnetic attraction member 5, which can trigger the corresponding switching element to demagnetize the electromagnetic attraction member 5, at which time the elastic member 41 in the compressed state releases the elastic potential energy, driving the support arm 21 to rotate away from the base 1 to the unfolded state, so that the unfolded support arm 21 can form a supporting effect on the folding position 2100 of the flexible display screen 2000. Subsequently, when the flexible display screen 2000 is folded again, the electromagnetic attraction member 5 can be powered on again to enter the excited state, so that the magnetic attraction between the electromagnetic attraction member 5 and the magnetic member 42 drives the support arm 21 to overcome the elastic force of the elastic member 41 and rotate to the storage state again.

[0107] When the support arm 21 is provided in multiple, one elastic member 41, one magnetic member 42 and one electromagnetic attraction member 5 can be provided for each support arm 21, so that each set of elastic member 41, magnetic member 42 and electromagnetic attraction member 5 cooperates to drive each support arm 21 to unfold relative to the base 1 when the flexible display screen 2000 is unfolded.

[0108] Further, taking the example of two folding screen support mechanisms 1000, the two folding screen support mechanisms 1000 are arranged side by side in the folding space 2600 at the folding position 2100 of the flexible display screen 2000; when the flexible display screen 2000 is fully unfolded, the support arms 21 of the two folding screen support mechanisms 1000 are both rotated to the unfolded state and form a support effect on the folding position 2100, at this time, the second end of the support arm 21 of one of the folding screen support mechanisms 1000 is in contact with the second end of the support arm 21 of the other folding screen support mechanism 1000, the two magnetic members 42 arranged on the two support arms 21 are magnetically attracted, so that the two support arms 21 are connected to form a stable support structure through the magnetic attraction effect, the support structure can form a stable support effect on the folding position 2100 in a longer span range, and can reduce the unstable swing of the end of the support arm 21, thereby further improving the support stability of the support arm 21 and the flatness of the flexible display screen 2000 after unfolding.

[0109] When the number of folding screen support mechanisms 1000 is set to two or more, the plurality of folding screen support mechanisms 1000 can be arranged at intervals in the folding space 2600 of the flexible display screen 2000 as shown in Figures 5 to 7 The magnetic members 42 on the support arms 21 of each folding screen support mechanism 1000 can be used to magnetically attract the magnetic members 42 on the support arms 21 of the adjacent folding screen support mechanism 1000, so as to connect the plurality of support arms 21 to form a continuous support structure, thereby forming a continuous support effect on the folding position 2100 with a larger span, and ensuring the flatness of the folding position 2100.

[0110] Based on the embodiment, the magnetic members 42 are used to maintain the storage state of the support arms 21, and are also used to connect the adjacent support arms 21, without the need to additionally provide a connection structure on the support arms 21, thereby realizing the maximum utilization of the corresponding functional devices in the folding screen support mechanism 1000 while ensuring the simplicity of the overall structure.

[0111] The above description is only an exemplary embodiment of the present application, and does not limit the patent scope of the present application, and any equivalent structural transformation made by using the contents of the present application specification and drawings, or direct / indirect application in other related technical fields is included in the patent protection scope of the present application.

Claims

1. A folding screen support mechanism, characterized in that, The folding screen supporting mechanism comprises: a base embedded in the flexible display screen; a support movably connected to the base; a sensing control unit arranged on the base; an actuating assembly connected to the support and electrically connected to the sensing control unit; when the sensing control unit detects that the flexible display screen in the folded state is unfolded, the sensing control unit is used to send an unfolding signal to the actuating assembly; the actuating assembly is used to drive the support to move from the storage state to the unfolded state after receiving the unfolding signal, so as to support the unfolded flexible display screen by the support; the support is arranged as a support arm rotatably connected to the base; the actuating assembly comprises an elastic member and a magnetic member, one end of the elastic member is connected to the base, the other end of the elastic member is connected to the support arm, and the magnetic member is arranged on the support arm; the base is provided with an electromagnetic attraction member electrically connected to the sensing control unit; when the flexible display screen is in the folded state, the electromagnetic attraction member is attracted to the magnetic member, and the elastic member is in a compressed state; the electromagnetic attraction member loses magnetism after receiving the unfolding signal, so that the elastic member releases elastic potential energy and drives the support arm to rotate to the unfolded state.

2. The folding screen supporting mechanism according to claim 1, characterized by a first end of the support arm is rotatably connected to the base, and the magnetic member is arranged on a second end of the support arm; when the support arm rotates to the unfolded state, the magnetic member of one of the support arms is used to be attracted to the magnetic member of the other support arm.

3. The folding screen supporting mechanism according to claim 1, wherein the base is provided with a limiting portion; when the support arm rotates to the unfolded state along a first direction, the limiting portion abuts against the support arm to prevent the support arm from continuing to rotate along the first direction, and the elastic member remains in a compressed state.

4. The folding screen supporting mechanism according to claim 1, wherein the base has a protruding structure, opposite sides of the protruding structure form a first inclined portion and a second inclined portion respectively; the support arm comprises at least a first arm body and a second arm body, the first arm body and the second arm body are both provided with the magnetic member, and first ends of the first arm body and the second arm body are rotatably connected to an end of the protruding structure; when the electromagnetic attraction member is attracted to the magnetic member, a second end of the first arm body is fitted to the first inclined portion, and a second end of the second arm body is fitted to the second inclined portion.

5. The folding screen supporting mechanism according to claim 1, wherein the folding screen supporting mechanism further comprises a pressure sensing device electrically connected to the sensing control unit, and the pressure sensing device is used to detect a pressure acting force received by the support arm in the unfolded state; when the pressure acting force exceeds a preset pressure threshold, the sensing control unit is used to alternately send a storage signal and the unfolding signal to the electromagnetic attraction member; the electromagnetic attraction member is magnetized after receiving the storage signal, so that the electromagnetic attraction member is attracted to the magnetic member, thereby driving the support arm to overcome the elastic force of the elastic member and rotate to the storage state.

6. The folding screen support mechanism according to any one of claims 1 to 5, characterized by, The sensing control unit comprises a label identification module and a master control module, the label identification module has an identification area, the label identification module is electrically connected with the master control module, and the master control module is electrically connected with the actuating assembly. The flexible display screen comprises a label instruction layer; during the unfolding process of the flexible display screen, the coverage area of the label instruction layer in the identification area gradually increases; the label identification module is used to send an identification completion signal to the master control module when the coverage area reaches a preset identification condition; and the master control module is used to send the unfolding signal to the actuating assembly after receiving the identification completion signal.

7. A display device, characterized by comprising: The display device comprises a flexible display screen and the folding screen supporting mechanism according to any one of claims 1 to 6.

8. The display device according to claim 7, wherein The flexible display screen comprises a flexible screen body, a first elastic layer, a second elastic layer and at least two electronic element layers; the at least two electronic element layers are clamped between the first elastic layer and the second elastic layer, the spacing area between the at least two electronic element layers forms a folding space, and the flexible screen body is arranged on the side of the first elastic layer away from the second elastic layer. The display device comprises at least two folding screen supporting mechanisms, and the at least two folding screen supporting mechanisms are arranged at intervals in the folding space. The support of each folding screen supporting mechanism is used to support the first elastic layer and / or the second elastic layer in the unfolded state.

9. The display device of claim 8, wherein, The support is arranged as a support arm, a first end of the support arm is rotatably connected to the base of the folding screen supporting mechanism, and a second end of the support arm is provided with a magnetic part. When the support arm of each folding screen supporting mechanism is rotated to the unfolded state, the magnetic part of each folding screen supporting mechanism is used to attract the magnetic part of another adjacent folding screen supporting mechanism.

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