Support device and display panel

Abstract

The application discloses a supporting device and a display panel. The supporting device is used for supporting a flexible display screen, the flexible display screen comprises a bending area, non-bending areas respectively located on opposite sides of the bending area, and a transition area located between the bending area and the non-bending area, the supporting device comprises a first supporting assembly and a second supporting assembly, the first supporting assembly comprises a first supporting piece and a first rotating piece rotatably connected to the first supporting piece, the first supporting piece is used for supporting the non-bending area, and the first rotating piece is used for supporting the transition area; the second supporting assembly comprises a second supporting piece and a second rotating piece rotatably connected to the second supporting piece, the second supporting piece is used for supporting the bending area, and the second rotating piece is used for supporting the transition area. The application can reduce the risk that the supporting device extrudes the transition area of the flexible display screen, and improves the phenomenon that the transition area of the flexible display screen is abnormally stressed.

Description

TECHNICAL FIELD

[0001] The present application belongs to the technical field of display, and particularly relates to a supporting device and a display panel. BACKGROUND

[0002] The development trend of intelligence, portability and flexibility is one of the main development directions of current electronic devices. New display devices represented by organic light-emitting diodes (OLED) are attracting more and more attention and recognition due to their outstanding characteristics such as thinness, brightness, energy saving and flexibility.

[0003] Among them, foldable display as the development direction of the new generation of flexible display technology has been widely concerned in the industry. While expanding the display area of the screen, the size can be reduced after folding, which is convenient for storage. Because the water droplet type bending structure has an optimal bending stress in the inner folding, the water droplet type bending structure is generally designed and developed to replace the U-shaped bending structure in the current industry. However, in the bending process, the supporting device for supporting the flexible display screen is easily extruded in the transition area, which causes abnormal stress on the screen. SUMMARY

[0004] The purpose of the present application is to provide a supporting device and a display panel, which aims to improve the phenomenon that the flexible display screen is extruded in the transition area after folding.

[0005] The present application provides a supporting device in the first aspect, which is used for supporting a flexible display screen. The flexible display screen includes a bending area, non-bending areas respectively located on opposite sides of the bending area, and a transition area located between the bending area and the non-bending area. The supporting device includes a first supporting assembly and a second supporting assembly. The first supporting assembly includes a first supporting piece and a first rotating piece rotatably connected to the first supporting piece. The first supporting piece is used for supporting the non-bending area, and the first rotating piece is used for supporting the transition area. The second supporting assembly includes a second supporting piece and a second rotating piece rotatably connected to the second supporting piece. The second supporting piece is used for supporting the bending area, and the second rotating piece is used for supporting the transition area.

[0006] In some embodiments, the first supporting assembly further includes a first elastic piece. The first supporting piece includes a first supporting part and a first protruding part. The first supporting part is used for supporting the non-bending area, and the first protruding part protrudes and extends from the first supporting part to the transition area. The two ends of the first elastic piece are respectively connected to the first rotating piece and the first protruding part.

[0007] Preferably, the first protruding part is provided with a first connecting part on the side facing the first rotating piece, and the first rotating piece is rotatably connected to the first connecting part.

[0008] Preferably, the first elastic member is arranged on the side of the first connecting portion close to the first supporting portion and the side of the first connecting portion away from the first supporting portion.

[0009] In some embodiments, the second supporting assembly further comprises a second elastic member, the second supporting member comprises a second supporting portion and a second protruding portion, the second supporting portion is used for supporting the bending area, the second protruding portion protrudes and extends from the second supporting portion to the transition area, and two ends of the second elastic member are connected with the second rotating member and the second protruding portion respectively.

[0010] Preferably, the second protruding portion is provided with a second connecting portion on the side facing the second rotating member, and the second rotating member is rotationally connected to the second connecting portion.

[0011] Preferably, the second elastic member is arranged on the side of the second connecting portion close to the second supporting portion and the side of the second connecting portion away from the second supporting portion.

[0012] Preferably, the first protruding portion and the second protruding portion are rotationally connected.

[0013] In some embodiments, the first rotating member comprises a first rotating portion and a first abutting portion, the first rotating portion is rotationally connected with the first supporting member, and the first abutting portion is used for supporting the transition area, the first abutting portion comprises a first end and a second end arranged oppositely, the first end is connected with the first rotating portion, and the first end and the second end respectively extend in a direction away from the flexible display screen.

[0014] In some embodiments, the first supporting member is provided with a first limiting portion at the end close to the first rotating member, and the first limiting portion is used for limiting the rotation of the first rotating member.

[0015] Preferably, the first supporting member is formed with a first circular arc track at the end close to the first rotating member, and the first rotating member is slidingly connected with the first circular arc track.

[0016] In some embodiments, the second rotating member comprises a second rotating portion and a second abutting portion, the second rotating portion is rotationally connected with the second supporting member, and the second abutting portion is used for supporting the transition area, the second abutting portion comprises a third end and a fourth end arranged oppositely, the third end is connected with the second rotating portion, and the third end and the fourth end respectively extend in a direction away from the flexible display screen.

[0017] In some embodiments, the second supporting member is provided with a second limiting portion at the end close to the second rotating member, and the second limiting portion is used for limiting the rotation of the second rotating member.

[0018] Preferably, the second supporting member is formed with a second circular arc track at the end close to the second rotating member, and the second rotating member is slidingly connected with the second circular arc track.

[0019] In some embodiments, the support device further comprises a first buffer part, which is attached to a side of the first rotating part facing the flexible display screen.

[0020] Preferably, the support device further comprises a second buffer part, which is attached to a side of the second rotating part facing the flexible display screen.

[0021] The second aspect of the present application provides a display panel, comprising a flexible display screen and the support device of any of the above embodiments; the flexible display screen is located on one side of the support device.

[0022] In some embodiments, the first support assembly and the second support assembly are metal parts, and the display panel further comprises a flexible electromagnet, which is arranged on a side of the transition region of the flexible display screen close to the support device, and the flexible electromagnet is configured to be powered on when the display panel is in the unfolded state.

[0023] The support device of the embodiments of the present application comprises a first support assembly and a second support assembly, the first support assembly comprises a first support part for supporting the non-bending region and a first rotating part for supporting the transition region, and the second support assembly comprises a second support part for supporting the bending region and a second rotating part for supporting the transition region. Since the first rotating part is rotationally connected to the first support part and the second rotating part is rotationally connected to the second support part, during the bending of the flexible display screen, the first rotating part and the second rotating part can rotate, which can synchronously match the topography of the flexible display screen, reduce the risk of the support device pressing the transition region of the flexible display screen, and improve the phenomenon of abnormal stress on the transition region of the flexible display screen. BRIEF DESCRIPTION OF DRAWINGS

[0024] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings needed in the embodiments of the present application will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application, and other drawings can be obtained by those skilled in the art without creative labor on the basis of these drawings.

[0025] Figure 1 A structure schematic diagram of a water droplet type bending structure display panel in a folded state;

[0026] Figure 2 A structure schematic diagram of a display panel in an unfolded state provided by some embodiments of the present application;

[0027] Figure 3 A structure schematic diagram of a display panel in a folded state provided by some embodiments of the present application;

[0028] Figure 4 A partial structure schematic diagram of a first support assembly provided by some embodiments of the present application;

[0029] Figure 5 Partial structural schematic view of a second support assembly provided for some embodiments of the present application;

[0030] Figure 6 Partial structural schematic view of a support device provided for some embodiments of the present application;

[0031] Figure 7 Partial structural schematic view of a first support assembly provided for some embodiments of the present application;

[0032] Figure 8 Partial structural schematic view of a first support assembly provided for some embodiments of the present application;

[0033] Figure 9 Partial structural schematic view of a second support assembly provided for some embodiments of the present application;

[0034] Figure 10 Partial structural schematic view of a second support assembly provided for some embodiments of the present application;

[0035] Figure 11 Partial structural schematic view of a first support assembly provided for some embodiments of the present application;

[0036] Figure 12 Partial structural schematic view of a second support assembly provided for some embodiments of the present application;

[0037] Figure 13 Partial structural schematic view of a support device provided for some embodiments of the present application. DETAILED DESCRIPTION

[0038] The embodiments of the present application will be further described in conjunction with the drawings and examples. The following detailed description of the examples and drawings is provided for exemplary illustration of the principles of the present application, but should not be used to limit the scope of the present application, i.e., the present application is not limited to the described examples.

[0039] In the description of the present application, it should be noted that, unless otherwise specified, the meaning of "a plurality of" is two or more; the orientation or positional relationship indicated by the terms "upper", "lower", "left", "right", "inner", "outer" and the like is only for the convenience of describing the present application and simplifying the description, and does not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the present application. In addition, the terms "first", "second", "third" and the like are only for the purpose of description, and cannot be understood as indicating or implying relative importance. "Vertical" is not strictly vertical, but within the allowable range of error. "Parallel" is not strictly parallel, but within the allowable range of error.

[0040] Reference to an "embodiment" in this disclosure means that a particular feature, structure, or characteristic described in connection with the embodiment can be included in at least one embodiment of the application. The appearances of the phrase in various places in the specification are not necessarily all referring to the same embodiment, nor are they necessarily mutually exclusive of other embodiments. It is expressly understood that that the described embodiments of the application are merely example embodiments and that one of ordinary skill in the art would readily understand that claims may be made that are not limited to the example embodiments described.

[0041] The positional adjectives appearing in the following description are made with reference to the orientation in the drawings and are not intended to be limiting of the specific structure of the application. In the description of the application, it is to be understood that the terminology used is for the purpose of describing particular embodiments only and is not intended to be limiting of the present application. Unless specifically defined in this specification, any use of terms, including technical and scientific terms, throughout this specification, can imply the use of their broadest forms even if only a narrower form can be commonly used. Terms, such as "installation", "connection", "coupling", "connection", "linking" and the like, should be understood broadly. For example, these terms can refer to a fixed connection, detachable connection, or integral connection. These terms can also refer to a direct connection or an indirect connection via an intermediate medium. The specific meaning of the above terms in the present application can be understood by those skilled in the art according to the specific circumstances.

[0042] The foldable display panel generally includes a supporting device and a flexible display screen arranged on the supporting device. The flexible display screen includes a bending area, non-bending areas respectively located on opposite sides of the bending area, and a transition area between the bending area and the non-bending area. Because the water droplet type bending structure has a better bending stress in the inward bending, the water droplet type bending structure is generally designed and developed in the industry to replace the U-shaped bending structure. Figure 1 A structure diagram of a water droplet type bending structure display panel in a folded state is shown in FIG. 1. Figure 1 As shown in FIG. 1, the water droplet type bending structure is commonly designed in four segments, and the four-segment bending structure includes two first supporting plates 200 with large sizes and two second supporting plates 300 with small sizes. The first supporting plate 200 is bonded to the non-bending area 400a of the flexible display screen 400, and the edge of the first supporting plate 200 corresponds to the transition area 400b. The second supporting plate 300 is bonded to the bending area 400c of the flexible display screen 400, and the edge of the second supporting plate 300 corresponds to the transition area 400b. When the four-segment bending structure is in a bending state, the bending area 400c assumes a water droplet shape, and the edges of the first supporting plate 200 and the second supporting plate 300 are easy to contact the flexible display screen 400, causing extrusion to the flexible display screen 400. As a result, the transition area 400b of the flexible display screen 400 is abnormally stressed, and the phenomenon of stress not being concentrated occurs, and there is a risk of inorganic layer fracture and adhesive material falling off. In the related art, chamfers can be provided on the edges of the first supporting plate 200 and the second supporting plate 300 to improve the situation, but at the same time, the flatness of the transition area 400b of the flexible display screen 400 is reduced.

[0043] To solve the above problems, the embodiments of the present application provide a supporting device and a display panel, and each embodiment of the display device and the display panel is described below with reference to the accompanying drawings.

[0044] Figure 2 A structural schematic diagram of the display panel in an unfolded state is provided for some embodiments of the present application. Figure 3 A structural schematic diagram of the display panel in a folded state is provided for some embodiments of the present application. Please refer to Figure 2 and Figure 3 The first aspect of the present application provides a supporting device 10 for supporting a flexible display screen 20, the flexible display screen 20 comprising a bending area 21, non-bending areas 22 respectively located on opposite sides of the bending area 21, and a transition area 23 between the bending area 21 and the non-bending areas 22, the supporting device 10 comprising a first supporting assembly 11 and a second supporting assembly 12, the first supporting assembly 11 comprising a first supporting piece 111 and a first rotating piece 112 rotatably connected to the first supporting piece 111, the first supporting piece 111 being used for supporting the non-bending areas 22, and the first rotating piece 112 being used for supporting the transition area 23; the second supporting assembly 12 comprising a second supporting piece 121 and a second rotating piece 122 rotatably connected to the second supporting piece 121, the second supporting piece 121 being used for supporting the bending area 21, and the second rotating piece 122 being used for supporting the transition area 23.

[0045] The flexible display screen 20 has oppositely arranged light-emitting sides 20a and backlight sides 20b, and the light-emitting sides 20a are the side of the display panel 100 for emitting light. Referring to Figure 2 , the display panel 100 comprises the flexible display screen 20 and two supporting devices 10. The supporting devices 10 can be connected to each other or can be independently arranged. The display panel 100 has a folded state and a bending state, and the two supporting devices 10 are symmetrically arranged along the bending center of the display panel 100. When the display panel 100 is in the folded state, the two supporting devices 10 are close to each other, and the light-emitting sides 20a of the flexible display screen 20 are oppositely arranged. When the display panel 100 is in the unfolded state, the two supporting devices 10 are on the same horizontal line, and the flexible display screen 20 is flat. Figure 2 , the display panel 100 can be called two-fold, comprising two non-bending areas 22. In the case that the display panel 100 comprises three or more non-bending areas 22, the supporting device can be arranged according to the two-fold.

[0046] The support device 10 can be pasted to the backlight side 20b of the flexible display screen 20 by adhesion. Specifically, the first support member 111 can be pasted to the non-bending area 22 of the flexible display screen 20 entirely. In order to facilitate the adaptation to the bending state of the flexible display screen 20, the first rotating member 112 and the second rotating member 122 can be pasted to the transition area 23 of the flexible display screen 20 partially respectively. The second support member 121 can also be pasted to the bending area 21 of the flexible display screen 20 partially.

[0047] The first rotating member 112 is located at the edge of the first support member 111, and the first rotating member 112 can be rotatably connected to one end of the first support member 111 close to the second support member 121. The second rotating member 122 is located at the edge of the second support member 121, and the second rotating member 122 can be rotatably connected to one end of the second support member 121 close to the first support member 111.

[0048] The first rotating member 112 and the second rotating member 122 of the embodiment of the present application can provide a certain support to the transition area 23 of the flexible display screen 20, and improve the flatness of the flexible display screen 20 when it is unfolded. Moreover, during the bending process of the display panel 100, the transition area 23 deforms, the first rotating member 112 can rotate relative to the first support member 111 towards the direction of the backlight side 20b of the flexible display screen 20, and the second rotating member 122 also rotates relative to the second support member 121 towards the direction of the backlight side 20b of the flexible display screen 20, that is, the first rotating member 112 and the second rotating member 122 can synchronously match the topography of the flexible display screen 20, and the edge of the first rotating member 121 and the edge of the second rotating member 122 will not touch the flexible display screen, thereby reducing the risk of the support device 10 extruding the transition area 23 of the flexible display screen 20, and improving the phenomenon of abnormal stress and stress concentration of the transition area 23 of the flexible display screen 20.

[0049] Figure 4 Part structure schematic diagram of the first support assembly provided by some embodiments of the present application is shown in the figure. Figure 4 As shown in the figure, in some embodiments, the first support assembly 11 further comprises a first elastic member 113, the first support member 111 comprises a first support portion 114 and a first protruding portion 115, the first support portion 114 is used for supporting the non-bending area 22, the first protruding portion 115 extends protrudingly from the first support portion 114 to the transition area 23, and the two ends of the first elastic member 113 are connected with the first rotating member 112 and the first protruding portion 115 respectively.

[0050] The first protruding part 115 is spaced apart from the flexible display screen 20, and a receiving space is formed between the first protruding part 115 and the flexible display screen 20, and the first rotating part 112 and the first elastic part 113 can be accommodated in the receiving space. The first elastic part 113 is preferably a spring, and can also be an elastic polymer or rubber, etc. The first elastic part 113 can have a certain buffering limiting effect on the rotation of the first rotating part 112, so as to prevent the rotation amplitude of the first rotating part 112 from being too large, and the tension or pressure on the flexible display screen 20 from being too large, thereby preventing damage to the flexible display screen 20.

[0051] Preferably, the first protruding part 115 is provided with a first connecting part 116 on the side facing the first rotating part 112, and the first rotating part 112 is rotationally connected to the first connecting part 116.

[0052] The first rotating part 112 can be provided with a first fixing part 117 on the side facing the first protruding part 115, and the first fixing part 117 is rotationally connected to the first connecting part 116. Specifically, a pin shaft can be arranged on the first fixing part 117, and a through hole is formed in the first connecting part 116 for the pin shaft to pass through, and the rotation of the pin shaft can realize the rotation of the first rotating part 112 relative to the first connecting part 116. Alternatively, a fixing shaft can also be arranged on the first connecting part 116, and a through hole is formed in the first fixing part 117 for the fixing shaft to pass through, and the rotation of the fixing shaft can also realize the rotation of the first rotating part 112 relative to the first connecting part 116.

[0053] By rotationally connecting the first rotating part 112 to the first connecting part 116, the stability of the first rotating part 112 during rotation can be improved.

[0054] Preferably, the first connecting part 116 can be arranged in the middle region of the first protruding part 115, that is, the distance from the first connecting part 116 to the side of the first protruding part 115 close to the first supporting part 111 is substantially equal to the distance from the first connecting part 116 to the side of the first protruding part 115 away from the first supporting part 111, so that the stress of the first rotating part 112 during rotation around the first protruding part 115 is more uniform, and the stability of the rotation of the first rotating part 112 is further improved, and the amplitude of the first rotating part 112 during rotation is prevented from being too large.

[0055] Preferably, the first elastic part 113 is arranged on the side of the first connecting part 116 close to the first supporting part 114 and on the side of the first connecting part 116 away from the first supporting part 114. That is, the number of the first elastic part 113 is multiple, and the multiple first elastic parts 113 are respectively distributed on the two sides of the first connecting part 116, so as to generate elastic force on different positions of the first rotating part 112, prevent the first rotating part 112 from contacting the flexible display screen 20, and further protect the flexible display screen 20.

[0056] Figure 5This is a partial structural schematic diagram of a second support component provided in some embodiments of this application. For example... Figure 5 As shown, in some embodiments, the second support assembly 12 further includes a second elastic member 123. The second support member 121 includes a second support portion 124 and a second protrusion 125. The second support portion 124 supports the bending area 21, and the second protrusion 125 extends from the second support portion 124 toward the transition area 23. The two ends of the second elastic member 123 are respectively connected to the second rotating member 122 and the second protrusion 125. Similar to the structure of the first elastic member 113, the second elastic member 123 is preferably a spring, but can also be an elastic polymer or rubber, etc. The second elastic member 123 can provide a certain buffering and limiting effect on the rotation of the second rotating member 122, preventing the rotation amplitude of the second rotating member 122 from being too large, thus avoiding excessive tension or pressure on the flexible display screen 20 and causing damage to the flexible display screen 20.

[0057] Preferably, a second connecting portion 126 is provided on the side of the second protrusion 125 facing the second rotating member 122, and the second rotating member 122 is rotatably connected to the second connecting portion 126. A second fixing portion 127 may be provided on the side of the second rotating member 122 facing the second protrusion 125, and the second fixing portion 127 is rotatably connected to the second connecting portion 126. Specifically, a pin may be provided on the second fixing portion 127, and a through hole may be provided on the second connecting portion 126 for the pin to pass through. The rotation of the pin can realize the rotation of the second rotating member 122 relative to the second connecting portion 126. Alternatively, a fixing shaft may be provided on the second connecting portion 126, and a through hole may be provided on the second fixing portion 127 for the fixing shaft to pass through, which can also realize the rotation of the second rotating member 122 relative to the second connecting portion 126. By rotatably connecting the second rotating member 122 to the second connecting portion 126, the stability of the second rotating member 122 during rotation can be improved.

[0058] Preferably, a second elastic member 123 is provided on both the side of the second connecting portion 126 near the second support portion 124 and the side away from the second support portion 124. The arrangement of the second connecting portion 126 can be referenced with that of the first connecting portion 116. Similarly, the number and distribution of the second elastic members 123 can be referenced with that of the first elastic member 113, and will not be described again here.

[0059] Figure 6 This is a partial structural schematic diagram of a support device provided in some embodiments of this application. For example... Figure 6As shown, preferably, the first protruding part 115 and the second protruding part 125 are rotationally connected. Since the second support 121 is smaller in size relative to the first support 111, the end of the first protruding part 115 facing the second support 121 and the end of the second protruding part 125 facing the first support 111 can be connected by a pin shaft, which can improve the stability of the second support 121, so that the support device 10 can provide more stable support force to the bending area 21. In some embodiments, the first protruding part 115 and the second protruding part 125 are independently provided.

[0060] Figure 7 A partial structural schematic diagram of a first support assembly provided for another embodiment of the present application is shown in FIG. 6. As shown in FIG. 6, the first support assembly includes a first support 111 and a first rotating member 112. The first support 111 is provided with a first support part 113 and a second support part 114. The first support part 113 is arranged on the first support 111 in a manner that the first support part 113 is closer to the bending area 21 than the second support part 114. The first support part 113 is provided with a first protruding part 115 and a second protruding part 125. The first protruding part 115 is arranged on the first support part 113 in a manner that the first protruding part 115 is closer to the first rotating member 112 than the second protruding part 125. The second support part 114 is arranged on the first support 111 in a manner that the second support part 114 is closer to the display panel 100 than the first support part 113. The second support part 114 is provided with a third protruding part 126 and a fourth protruding part 127. The third protruding part 126 is arranged on the second support part 114 in a manner that the third protruding part 126 is closer to the first rotating member 112 than the fourth protruding part 127. The first rotating member 112 is rotationally connected to the first support 111. Figure 7 As shown, the first rotating member 112 includes a first rotating part 118 and a first fitting part 119. The first rotating part 118 is rotationally connected to the first support 111. The first fitting part 119 is used to support the transition area 23. The first fitting part 119 includes a first end 119a and a second end 119b arranged oppositely. The first end 119a is connected to the first rotating part 118. The first end 119a and the second end 119b respectively extend in a direction away from the flexible display screen 20.

[0061] The first fitting part 119 is in a flat plate shape, which can be adhered to the back light side 20b of the flexible display screen 20. The first end 119a and the second end 119b respectively extend in a direction away from the flexible display screen 20, which can avoid the end of the first fitting part 119 touching the flexible display screen 20 after the display panel 100 is bent, and prevent the flexible display screen 20 from being damaged by extrusion.

[0062] Optionally, the first end 119a and the second end 119b of the first fitting part 119 are respectively in a curved arc shape, so as to avoid straight edges and further reduce the risk of extrusion damage to the flexible display screen 20.

[0063] In some embodiments, the first support 111 is provided with a first limiting part 131 at an end close to the first rotating member 112. The first limiting part 131 is used to limit the rotation of the first rotating member 112.

[0064] Specifically, a pin shaft can be arranged on the first rotating member 112, and a through hole for the pin shaft to pass through can be formed on the first support 111. The rotation of the first rotating member 112 relative to the first support 111 can be realized by the rotation of the pin shaft. Alternatively, a fixed shaft can be arranged on the first support 111, and a through hole for the fixed shaft to pass through can be formed on the first rotating member 112. The rotation of the first rotating member 112 relative to the first support 111 can also be realized.

[0065] The first limiting part 131 can be a protruding limiting block, and the shape thereof can be vertical, L-shaped, etc. The specific shape is not limited herein, as long as the first limiting part 131 can limit the rotation angle of the first rotating part 112, so as to prevent the first rotating part 112 from excessively rotating.

[0066] Figure 8 A partial structural schematic view of the first supporting assembly is provided for some other embodiments of the present application. As shown in Figure 8 The first rotating part 112 is slidably connected with the first circular arc track 141. A slide rod, a slide shaft or the like can be arranged at the end of the first rotating part 112, and matched with the first circular arc track 141, so that the first rotating part 112 can slide on the first circular arc track 141 when the first rotating part 112 rotates, thereby further improving the stability of the first rotating part 112 during rotation.

[0067] Figure 9 A partial structural schematic view of the second supporting assembly is provided for some other embodiments of the present application. As shown in Figure 9 The second rotating part 122 includes a second rotating part 128 and a second adhering part 129. The second rotating part 128 is rotatably connected with the second supporting part 121. The second adhering part 129 is used for supporting the transition area 23. The second adhering part 129 includes oppositely arranged third and fourth ends 129a and 129b. The third end 129a is connected with the second rotating part 128. The third and fourth ends 129a and 129b respectively extend away from the flexible display screen 20.

[0068] The second adhering part 129 is flat, and can be adhered to the back light side 20b of the flexible display screen 20. The third and fourth ends 129a and 129b respectively extend away from the flexible display screen 20. When the display panel 100 is bent, the ends of the second adhering part 129 can avoid contacting the flexible display screen 20, thereby preventing the flexible display screen 20 from being damaged due to extrusion.

[0069] Optionally, the third and fourth ends 129a and 129b of the second adhering part 129 are respectively curved, so as to avoid straight edges and further reduce the risk of damaging the flexible display screen 20 due to extrusion.

[0070] In some embodiments, the second support 121 is provided with a second limiting part 132 near one end of the second rotating part 122, and the second limiting part 132 is used for limiting the rotation of the second rotating part 122.

[0071] Specifically, a pin shaft can be arranged on the second rotating part 122, and a through hole for the pin shaft to pass through is arranged on the second support 121, and the rotation of the pin shaft can realize the rotation of the second rotating part 122 relative to the first support 111. Alternatively, a fixed shaft can be arranged on the second support 121, and a through hole for the fixed shaft to pass through is arranged on the second rotating part 122, and the rotation of the second rotating part 122 relative to the second support 121 can also be realized.

[0072] Two second limiting parts 132 can be arranged on two ends of the second support 121 in the direction perpendicular to the flexible display screen 20, for example, when the second rotating part 122 rotates clockwise, the upper second limiting part 132 can abut against the second rotating part 122 to prevent the second rotating part 122 from continuing to rotate clockwise; if the second rotating part 122 rotates counterclockwise, the lower second limiting part 132 can abut against the second rotating part 122 to prevent the second rotating part 122 from continuing to rotate counterclockwise. The second limiting part 132 can be a protruding limiting block, and the shape thereof can be vertical, L-shaped, etc., and the specific shape thereof is not limited herein, as long as the second limiting part 132 can limit the rotation angle of the second rotating part 122 to prevent the second rotating part 122 from rotating excessively.

[0073] Figure 10 Part structure schematic diagrams of the second support assembly provided by some other embodiments of the present application are shown in FIGS. 8A and 8B. Figure 10 As shown in FIGS. 8A and 8B, the second support 121 is formed with a second circular arc track 142 near one end of the second rotating part 122, and the second rotating part 122 is in sliding connection with the second circular arc track 142. A slide rod, a slide shaft or the like can be arranged on the end of the second rotating part 122 to match the second circular arc track 142, so that when the second rotating part 122 rotates, the second rotating part 122 can slide on the second circular arc track 142, thereby further improving the stability of the second rotating part 122 during rotation.

[0074] Figure 11 Part structure schematic diagrams of the first support assembly provided by some other embodiments of the present application are shown in FIGS. 9A and 9B. Figure 11 As shown in FIGS. 9A and 9B, the support device 10 further includes a first buffer part 151, and the first buffer part 151 is attached to one side of the first rotating part 112 facing the flexible display screen 20. The first buffer part 151 can completely cover the surface of the first rotating part 112, and the first buffer part 151 can be made of foam, elastic polymer material or the like, so as to improve the contact stress between the first rotating part 112 and the flexible display screen 20 and protect the flexible display screen 20 from being damaged.

[0075] Figure 12 Part structure schematic diagram of the second support assembly provided for some other embodiments of the present application. As shown in the figure, Figure 12 The support device 10 further includes a second buffer part 152, which is attached to the side of the second rotating part 122 facing the flexible display screen 20. The second buffer part 152 can be arranged in the same way as the first buffer part 151, and can completely cover the surface of the second rotating part 122. The second buffer part 152 can be made of foam, elastic polymer material, etc., so as to improve the contact stress between the second rotating part 122 and the flexible display screen 20, and protect the flexible display screen 20 from being damaged.

[0076] The second aspect of the present application provides a display panel 100, which includes a flexible display screen 20 and the support device 10 of any of the above embodiments. The flexible display screen 20 is located on one side of the support device 10. Since the display panel 100 adopts all the technical solutions of the above embodiments, it at least has all the beneficial effects brought by the technical solutions of the above embodiments, which will not be repeated here.

[0077] Figure 13 Part structure schematic diagram of the support device provided for some other embodiments of the present application. As shown in the figure, Figure 13 The first support assembly 11 and the second support assembly 12 are metal parts, and the display panel 100 further includes a flexible electromagnet 30, which is arranged on the side of the transition area 23 of the flexible display screen 20 close to the support device 10. The flexible electromagnet 30 is configured to be powered on when the display panel 100 is in an unfolded state.

[0078] The flexible display screen 20 can include a substrate, a driving circuit layer and a display layer arranged in layers, and a support layer is arranged on the side of the substrate away from the display layer. In the top view of the flexible display screen 20, the support layer is designed as an entire layer laid on the side of the substrate away from the display layer, and the support layer is used to support the substrate. In order to improve the deformation ability of the transition area 23 of the flexible display screen 20, blind holes or through holes can be arranged in the part of the support layer corresponding to the transition area 23. In the case that blind holes or through holes are arranged in the support layer of the transition area 23, the stiffness of the transition area 23 is smaller, and in the bending process, the stress caused by bending can be released through large deformation, and then the phenomenon of bulging occurs. It should be noted that the "bulging phenomenon" refers to the phenomenon that the flexible display screen 20 bulges away from the support device 10. The flexible electromagnet 30 can be arranged on the side of the support layer close to the support device 10, which is conducive to improving the adsorption effect of the flexible electromagnet 30 and the first support assembly 11 and the second support assembly 12.

[0079] The flexible electromagnet 30 has both the characteristic of generating magnetism when powered and flexibility, and is suitable for the bending state of the flexible display screen 20. The material of the flexible electromagnet 30 can include polyester film, carbon nanotube, ferrite nano powder, copper wire and polyurethane. Among them, the polyester film has excellent flexibility, magnetic permeability and electrical conductivity. The carbon nanotube has high strength, high electrical conductivity and flexibility, and can be used to produce a high-performance flexible electromagnet 30. The ferrite nano powder has high magnetic permeability and magnetic moment, and is an important raw material for producing the flexible electromagnet 30. The copper wire has good electrical conductivity and flexibility, and can be used to produce the conductive circuit of the flexible electromagnet 30. The polyurethane has flexibility, heat resistance and chemical resistance, and can be used to produce the insulating layer of the flexible electromagnet 30.

[0080] Specifically, the flexible electromagnet 30 can be made into a coil structure and fixed on the backlight side 20b of the flexible display screen 20. The flexible electromagnet 30 and the flexible display screen 20 can be closely combined together by using a flexible circuit board, and the flexible electromagnet 30 can be controlled by an external power supply. For example, the flexible electromagnet 30 can be controlled by the power-on of the circuit board, and the current flow direction can also be controlled by the flexible electromagnet 30 switch to control the power-on of the flexible electromagnet 30.

[0081] The state of the flexible display screen 20 can be sensed by a bending sensor, an optical sensor, a pressure sensor and the like. When the sensor senses that the flexible display screen 20 is in an unfolded state, the flexible electromagnet 30 is powered on. When the sensor senses that the flexible display screen 20 is in a folded state, the flexible electromagnet 30 is powered off. Specifically, the bending sensor can detect the curvature or bending degree of the flexible display screen 20. When the flexible display screen 20 is in a folded state, the bending sensor can measure the angle or curvature value of the folding. When the flexible display screen 20 is unfolded, the measurement value of the bending sensor will change accordingly. The optical sensor can detect the shape and state of the flexible display screen 20. When the flexible display screen is folded, the path of the light will change, which can be detected and measured by the optical sensor. The pressure sensor can sense the pressure change on the flexible display screen 20. When the flexible display screen 20 is folded, the pressure sensor can detect the increase or decrease of the pressure in a specific area. When the flexible display screen 20 is unfolded, the measurement value of the pressure sensor will change accordingly.

[0082] It should be noted that the first rotating member 112 and the second rotating member 113 are metal members with magnetism, preferably made of iron, nickel, cobalt or other metal with strong magnetism. The embodiment is provided with a flexible electromagnet 30 on the side of the transition area 23 of the flexible display screen 20 close to the support device 10. When the display panel 100 is in the folded state, the flexible electromagnet 30 is not powered. When the display panel 100 is unfolded, the flexible electromagnet 30 has magnetism after being powered. Since the first rotating member 112 and the second rotating member 122 are metal members respectively, the first rotating member 112 and the second rotating member 122 can adsorb the flexible electromagnet 30, thereby improving the bulging phenomenon of the transition area 23 in the folded state, further reducing the creases of the transition area 23, and effectively improving the flatness of the flexible display screen 20.

[0083] The above merely provides a specific implementation of the present application, but the protection scope of the present application is not limited thereto. Any skilled person in the art can easily think of various equivalent modifications or replacements within the technical range disclosed by the present application, and these modifications or replacements shall be encompassed within the protection scope of the present application. Therefore, the protection scope of the present application shall be subject to the protection scope of the claims.

Claims

1. A support device for supporting a flexible display panel, the flexible display panel including a bending area, non-bending areas respectively located on opposite sides of the bending area, and a transition area located between the bending area and the non-bending areas, the support device comprising: a first support member configured to support the non-bending area on one side of the bending area; a second support member configured to support the non-bending area on the other side of the bending area; and a third support member configured to support the transition area between the bending area and the non-bending areas. The support device comprises: a first support assembly comprising a first support member for supporting a non-bending region and a first rotating member rotatably connected to the first support member for supporting the transition region; and a second support assembly comprising a second support member for supporting a bending region and a second rotating member rotatably connected to the second support member for supporting the transition region; the first support assembly further comprises a first elastic member, the first support member comprises a first support portion for supporting the non-bending region and a first protruding portion protruding from the first support portion towards the transition region, and two ends of the first elastic member are connected to the first rotating member and the first protruding portion, respectively.

2. The support device of claim 1, wherein The first protruding portion is provided with a first connecting portion on a side facing the first rotating member, and the first rotating member is rotatably connected to the first connecting portion.

3. The support device of claim 2, wherein, The first elastic member is arranged on a side of the first connecting portion close to the first support portion and a side of the first connecting portion away from the first support portion.

4. The support device of claim 1, wherein, The second support assembly further comprises a second elastic member, the second support member comprises a second support portion for supporting the bending region and a second protruding portion protruding from the second support portion towards the transition region, and two ends of the second elastic member are connected to the second rotating member and the second protruding portion, respectively.

5. The support device of claim 4, wherein, The second protruding portion is provided with a second connecting portion on a side facing the second rotating member, and the second rotating member is rotatably connected to the second connecting portion.

6. The support apparatus of claim 5, wherein The second elastic member is arranged on a side of the second connecting portion close to the second support portion and a side of the second connecting portion away from the second support portion.

7. The support apparatus of claim 4, wherein The first protruding portion and the second protruding portion are rotatably connected.

8. The support device of claim 1, wherein, The first rotating member comprises a first rotating portion rotatably connected to the first support member and a first abutting portion for supporting the transition region, the first abutting portion comprises a first end and a second end arranged oppositely, the first end is connected to the first rotating portion, and the first end and the second end extend obliquely away from the flexible display screen, respectively.

9. The support device of claim 1, wherein, The first support member is provided with a first limiting portion on an end close to the first rotating member, and the first limiting portion is used for limiting rotation of the first rotating member.

10. The support apparatus of claim 9, wherein, The first support member is formed with a first circular arc track on an end close to the first rotating member, and the first rotating member is slidably connected to the first circular arc track.

11. The support device according to any one of claims 1 to 10, characterized in that The second rotating member comprises a second rotating portion rotatably connected to the second support member and a second abutting portion for supporting the transition region, the second abutting portion comprises a third end and a fourth end arranged oppositely, the third end is connected to the second rotating portion, and the third end and the fourth end extend obliquely away from the flexible display screen, respectively.

12. The support device according to any one of claims 1 to 10, characterized in that The second support member is provided with a second limiting portion on an end close to the second rotating member, and the second limiting portion is used for limiting rotation of the second rotating member.

13. The support apparatus of claim 12, wherein, The second support member is formed with a second circular arc track near one end of the second rotating member, and the second rotating member is in sliding connection with the second circular arc track.

14. The support device according to any one of claims 1 to 10, characterized in that The support device further comprises a first buffer part, which is attached to one side of the first rotating member facing the flexible display screen.

15. The support apparatus of claim 14, wherein, The support device further comprises a second buffer part, which is attached to one side of the second rotating member facing the flexible display screen.

16. A display panel, characterized by Comprise: The support device according to any one of claims 1-15; A flexible display screen is located on one side of the support device.

17. The display panel of claim 16, wherein, The first support assembly and the second support assembly are metal parts, the display panel further comprises a flexible electromagnet, the flexible electromagnet is arranged on one side of the transition area of the flexible display screen close to the support device, and the flexible electromagnet is configured to be energized when the display panel is in an unfolded state.

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