Folding display device and electronic device

Abstract

The present application discloses a folding display device and an electronic device, wherein the folding display device includes: a folding module, including a first non-bending area, a bending area, and a second non-bending area connected in sequence; a folding screen, arranged on the folding module, including a first non-bending screen area corresponding to the first non-bending area, a bending screen area corresponding to the bending area, and a second non-bending screen area corresponding to the second non-bending area; a pressure piece, connected to the folding module, the pressure piece is at least pressed on the edge where the first non-bending screen area is connected to the bending screen area and the edge where the second non-bending screen area is connected to the bending screen area. The pressure piece is at least pressed on the edge portion of the non-bending screen area of ​​the folding screen and adjacent to the bending screen area, so that the pressure piece can offset the stress on the non-bending area of ​​the folding screen in this portion, avoid the stress between the film layers of the folding screen to generate cavities or bubbles, avoid the bulging of the film layer on the surface of the folding screen and the failure of the folding screen, and extend the service life of the folding screen.

Description

Technical Field

[0001] The present application belongs to the technical field of display devices, and in particular relates to a foldable display device and an electronic device. Background Art

[0002] At present, flexible display is developing rapidly, and foldable screens have entered the era of mass production. An important development direction for foldable screens is to use smaller and smaller folding radius to improve the convenience. When folded, the foldable screen is subjected to the greatest stress, which can easily cause the glue layer between the film layers of the foldable screen to fail, resulting in film separation. Figure 1 and Figure 2 As shown, at the edge of the bending area, starting from the edge of the folding screen, holes are generated between the film layers of the folding screen due to excessive stress and gradually develop into bubbles. The bubbles then develop into cracks and even extend through the entire folding screen. The colloid debonds and the film layer on the surface of the folding screen arches, causing the folding screen to fail.

[0003] It should be noted that the information disclosed in the above background technology section is only used to enhance the understanding of the background of the present disclosure, and therefore may include information that does not constitute prior art known to ordinary technicians in the field. Summary of the Invention

[0004] This application aims to at least partially address the technical problem of foldable screens failing due to stress on the edges of the bending zone, which can easily cause film separation. To this end, this application provides a foldable display device and electronic device.

[0005] An embodiment of the present application provides a foldable display device, the foldable display device comprising:

[0006] The folding module comprises a first non-bending area, a bending area and a second non-bending area connected in sequence;

[0007] a folding screen, provided on the folding module, comprising a first non-bending screen area corresponding to the first non-bending area, a bending screen area corresponding to the bending area, and a second non-bending screen area corresponding to the second non-bending area;

[0008] A pressure edge member is connected to the folding module, and is at least pressed on an edge where the first non-bending screen area is connected to the bending screen area and an edge where the second non-bending screen area is connected to the bending screen area.

[0009] In some embodiments, the edge clamp includes a first rigid portion corresponding to an edge of the first non-bending screen area, a flexible portion corresponding to the bending screen area, and a second rigid portion corresponding to the second non-bending screen area.

[0010] In some embodiments, the edge pressing member is frame-shaped and is pressed onto the four edges of the folding screen.

[0011] In some embodiments, the foldable display device further includes:

[0012] The parent-child fixing parts are respectively arranged on the folding module and the edge pressing part to press the edge pressing part tightly against the edge of the folding screen.

[0013] In some embodiments, the parent-child fastener comprises:

[0014] a first mother magnet, disposed on the first rigid part;

[0015] a second mother magnet, disposed on the second rigid portion;

[0016] A first sub-magnet is disposed in the first non-bending region corresponding to the first mother magnet, and the first sub-magnet and the first mother magnet are attracted to each other; and

[0017] The second sub-magnet is arranged in the second non-bending area corresponding to the second mother magnet, and the second sub-magnet is attracted to the second mother magnet.

[0018] In some embodiments, the foldable display device further includes:

[0019] a first rotating shaft, disposed in the first non-bending region and located on a side of the first sub-magnet adjacent to the bending region, the first rotating shaft passing through a first rotating shaft hole in the first rigid portion;

[0020] A second rotating shaft is disposed in the second non-bending region and is located on a side of the second sub-magnet adjacent to the bending region, the second rotating shaft being passed through the first rotating shaft hole of the second rigid portion; and

[0021] A support member is provided in the first non-bending area and / or in the second non-bending area;

[0022] Moreover, the attraction between the first mother magnet and the second mother magnet is greater than the attraction between the first mother magnet and the first sub-magnet, and the attraction between the first mother magnet and the second mother magnet is greater than the attraction between the second mother magnet and the second sub-magnet;

[0023] When the folding screen is in a folded state, the support member creates a gap between the first mother magnet and the second mother magnet, and the first mother magnet and the second mother magnet attract each other.

[0024] In some embodiments, the distance between the first sub-magnet and the first rotating shaft is greater than the distance between the bending zone and the first rotating shaft, and the distance between the second sub-magnet and the second rotating shaft is greater than the distance between the bending zone and the second rotating shaft.

[0025] In some embodiments, the first rotating shaft is disposed at an edge of the first non-bending area, and a first rotating shaft avoidance opening is provided at a position corresponding to the first rigid portion and the first rotating shaft;

[0026] The second rotating shaft is arranged at the edge of the second non-bending area, and a second rotating shaft avoidance opening is provided at a position corresponding to the second rigid portion and the second rotating shaft;

[0027] The support member is arranged at the edge of the first non-bending area and / or the second non-bending area, and a support member avoidance opening is provided at the corresponding position of the edge holding member and the support member.

[0028] In some embodiments, the first non-bending region defines a first groove, in which the first sub-magnet is fixed; the second non-bending region defines a second groove, in which the second sub-magnet is fixed.

[0029] In some embodiments, the foldable display device further includes:

[0030] A sealing strip is provided between the folding module and the edge holding member.

[0031] An embodiment of the present application further provides an electronic device, which includes the above-mentioned folding display device.

[0032] The embodiments of the present application have at least the following beneficial effects:

[0033] In the above-mentioned folding display device, the edge pressure member is at least pressed onto the edge where the first non-bending screen area is connected to the bending screen area and the edge where the second non-bending screen area is connected to the bending screen area, that is, the edge pressure member is at least pressed onto the edge portion of the non-bending screen area of ​​the folding screen and adjacent to the bending screen area, so that the stress on the non-bending area of ​​the folding screen in this portion can be offset by the edge pressure member, thereby avoiding the stress between the film layers of the folding screen to generate holes or bubbles, avoiding the arching of the film layer on the surface of the folding screen and the failure of the folding screen, and extending the service life of the folding screen. BRIEF DESCRIPTION OF THE DRAWINGS

[0034] In order to more clearly illustrate the technical solutions in the embodiments of the present application, a brief introduction will be given below to the drawings required for use in the description of the embodiments. Obviously, the drawings described below are some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without any creative work.

[0035] Figure 1 shows a schematic diagram of the folding state of the folding screen;

[0036] Figure 2 shows a schematic diagram of the unfolded state of the folding screen;

[0037] Figure 3 A schematic diagram of the three-dimensional structure of a foldable display device in an embodiment of the present application is shown;

[0038] Figure 4 Shown Figure 3 A schematic diagram of the three-dimensional structure of the folding display device after removing the folding screen;

[0039] Figure 5 Shown Figure 4 A cross-sectional view of a folding display device at a holding edge member;

[0040] Figure 6 Shown Figure 4 A partial view of a first rigid portion of the foldable display device;

[0041] Figure 7 Shown Figure 6 A partial view of the first mother magnet in FIG;

[0042] Figure 8 Shown Figure 4 A partial view of a first non-bending area of ​​a folding module of a folding display device;

[0043] Figure 9 Shown Figure 4 A schematic structural diagram of a support member of a foldable display device;

[0044] Figure 10 Shown Figure 4 A partial view of the first rotating shaft hole of the foldable display device;

[0045] Figure 11 Shown Figure 4 A partial view of the first rotating shaft of the folding display device

[0046] Figure 12 A diagram showing the changes of the folding display device of an embodiment of the present application when switching between the folded state and the unfolded state.

[0047] Reference numerals:

[0048] 100, foldable display device; 110, foldable module; 111, first non-bending area; 1111, first groove; 112, bending area; 113, second non-bending area; 120, foldable screen; 121, first non-bending screen area; 1211, first polymer film layer; 1212, first glass layer; 1213, second polymer film layer; 1214, second glass layer; 122, bending screen area; 123, second non-bending screen area; 124, bubbles; 125, cracks; 13 0. Edge pressing member; 131. First rigid part; 1311. First rotating shaft hole; 132. Flexible part; 133. Second rigid part; 140. Mother-child fixing member; 141. First mother magnet; 142. Second mother magnet; 143. First sub-magnet; 144. Second sub-magnet; 150. Rotating shaft assembly; 151. First rotating shaft; 1511. First rotating shaft support; 152. Second rotating shaft; 160. Support member; 161. Base; 162. Support part; 170. Sealing strip. DETAILED DESCRIPTION

[0049] The following will be combined with the drawings in the embodiments of this application to clearly and completely describe the technical solutions in the embodiments of this application. Obviously, the embodiments described are only part of the embodiments of this application, not all of the embodiments. Based on the embodiments in this application, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of this application.

[0050] In addition, this application may repeat reference numbers and / or reference letters in different examples. This repetition is for the purpose of simplicity and clarity and does not in itself indicate the relationship between the various embodiments and / or settings discussed. In addition, this application provides examples of various specific processes and materials, but those of ordinary skill in the art will recognize the application of other processes and / or the use of other materials.

[0051] The present application is described below with reference to specific embodiments and with reference to the accompanying drawings:

[0052] The foldable display device 100 provided in the first embodiment of the present application is as follows: Figures 3 to 5 As shown, the foldable display device 100 of the first embodiment includes:

[0053] The folding module 110 includes a first non-bending area 111, a bending area 112, and a second non-bending area 113 connected in sequence;

[0054] The folding screen 120 is provided on the folding module 110 and includes a first non-bending screen area 121 corresponding to the first non-bending area 111 , a bending screen area 122 corresponding to the bending area 112 , and a second non-bending screen area 123 corresponding to the second non-bending area 113 .

[0055] The edge pressing member 130 is connected to the folding module 110 . The edge pressing member 130 is at least pressed on the edge connecting the first non-bending screen area 121 and the bending screen area 122 and the edge connecting the second non-bending screen area 123 and the bending screen area 122 .

[0056] In embodiment one, the edge pressing member 130 is pressed at least on the edge where the first non-bending screen area 121 is connected to the bending screen area 122 and the edge where the second non-bending screen area 123 is connected to the bending screen area 122, that is, the edge pressing member 130 is pressed at least on the edge portion of the non-bending screen area 122 of the folding screen 120 and adjacent to the bending screen area 122, so that the edge pressing member 130 can offset the stress on the non-bending area 112 of the folding screen 120, avoid the stress between the film layers of the folding screen 120 to generate holes or bubbles 124, avoid the arching of the surface film layer of the folding screen 120 and the failure of the folding screen 120, and extend the service life of the folding screen 120.

[0057] In the first embodiment, the edge clamp 130 is connected to the folding module 110 and fixed to the folding module 110. Thus, the edge clamp 130 can be pressed against the edge of the folding screen 120 where the first non-bending screen area 121 and the bending screen area 122 are connected, and against the edge of the folding screen 120 where the second non-bending screen area 123 and the bending screen area 122 are connected. The connection methods between the edge clamp 130 and the folding module 110 include, but are not limited to, adhesive connection, snap connection, magnetic connection, and other connection methods.

[0058] In the first embodiment, Figure 3 and Figure 4 As shown, the folding module 110 and the edge clamp 130 are respectively located on both sides of the folding screen 120, wherein the folding module 110 is located on the side of the folding screen 120 away from the light-emitting surface, and the edge clamp 130 is located on the side of the light-emitting surface of the folding screen 120.

[0059] In the first embodiment, Figure 4 As shown, the folding display device 100 after removing the folding screen 120 is provided with a folding module 110, and the folding module 110 includes a first non-bending area 111 and a second non-bending area 113. A hinge is provided between the first non-bending area 111 and the second non-bending area 113 to connect the first non-bending area 111 and the second non-bending area 113, and a bending area 112 is formed between the first non-bending area 111 and the second non-bending area 113, so that after the folding screen 120 is attached to the folding module 110, the folding screen 120 can be folded and bent in the bending area 112, and a first non-bending screen area 121, a bending screen area 122 and a second non-bending screen area 123 corresponding one to one to the first non-bending area 111, the bending area 112 and the second non-bending screen area are formed on the folding screen 120.

[0060] like Figure 1 and Figure 2As shown, in the traditional folding screen 120, the folding screen 120 is subjected to certain stress when folded, especially the first non-bending screen area 121 and the second non-bending screen area 123 adjacent to the bending screen area 122, which are subjected to greater stress. Therefore, the film layers of the folding screen 120 here are easily separated. Initially, the first polymer film layer 1211 and the second polymer film layer 1213 are separated, and bubbles 124 are formed in the first glass layer 1212 between the first polymer film layer 1211 and the second polymer film layer 1213. Then, the second polymer film layer 1213 continues to separate under the action of stress, and bubbles 124 are formed in the second glass layer 1214. Bubbles 124 can be observed on the appearance of the screen part of the first non-bending screen area 121 and the second non-bending screen area 123 of the folding screen 120 adjacent to the bending screen area 122. As the folding screen 120 is used, the bubbles 124 in the first non-bending screen area 121 and the second non-bending screen area 123 adjacent to the bending screen area 122 will gradually expand, forming cracks 125 that gradually extend toward the center of the screen, which will seriously affect the display effect of the folding screen 120 and even cause the folding screen 120 to fail, shortening the life of the folding display device 100.

[0061] In order to avoid the problem of the film layer of the folding screen 120 failing from the edge, this embodiment proposes the inventive concept of providing an edge clamp 130 in the folding display device 100, which presses the edge of the folding screen 120 when the folding display device 100 is folded, making it less likely to produce cracks 125 and arch.

[0062] As an optional implementation, Figure 5 As shown, the edge holding member 130 includes a first rigid portion 131 corresponding to the edge of the first non-bending screen area 121 , a flexible portion 132 corresponding to the bending screen area 122 , and a second rigid portion 133 corresponding to the second non-bending screen area 123 .

[0063] In embodiment one, the first rigid portion 131 and the second rigid portion 133 of the edge clamp 130 are used to press the folding screen 120 onto the folding module 110. At the same time, the portion of the edge clamp 130 corresponding to the bending screen area 122 is the flexible portion 132, which can adapt to the folding and bending of the folding screen 120 to avoid affecting the folding and unfolding of the folding display device 100.

[0064] As an optional implementation, Figure 3 and Figure 4 As shown, the edge pressing member 130 is frame-shaped and is pressed on the four edges of the folding screen 120.

[0065] In the first embodiment, the edge pressing member 130 is frame-shaped and can be pressed onto the four edges of the folding screen 120 as a whole. Firstly, the appearance of the folding display device 100 is made more unified and beautiful. In addition, the edge pressing member 130 is a whole, which is also convenient for its installation.

[0066] As an optional implementation, Figure 4 and Figure 5 As shown, the folding display device 100 further includes: parent-child fixing members 140 , which are respectively arranged on the folding module 110 and the edge pressing member 130 to press the edge pressing member 130 against the edge of the folding screen 120 .

[0067] In one embodiment, the parent-child fixing member 140 can adopt a parent-child fixing method of a buckle or a snap ring, or a parent-child magnetic fixing method.

[0068] In embodiment one, the edge clamp 130 is arranged at the edge of the folding screen 120, and the edge clamp 130 is pressed against the edge of the folding screen 120 by the parent-child fixing member 140, so that the first rigid part 131 is pressed against the edge of the folding screen 120 corresponding to the first non-bending area 111, and the second rigid part 133 is pressed against the edge of the folding screen 120 corresponding to the second non-bending area 113, so that the stress on the non-bending area 112 of the folding screen 120 can be offset by the edge clamp 130, thereby avoiding stress between the film layers of the folding screen 120 to generate cavities or bubbles 124, avoiding the arching of the surface film layer of the folding screen 120 and the failure of the folding screen 120, and extending the service life of the folding screen 120.

[0069] In the first embodiment, the edge clamp 130 is provided with a first rigid portion 131, a flexible portion 132, and a second rigid portion 133 corresponding to the first non-bending region 111, the bending region 112, and the second non-bending region 113 of the folding module 110, respectively. Furthermore, the first rigid portion 131, the flexible portion 132, and the second rigid portion 133 also correspond one-to-one with the first non-bending region 121, the bending region 122, and the second non-bending region 123 of the folding screen 120, respectively. This allows the first rigid portion 131 to be pressed against the edge of the first non-bending region 121, the second rigid portion 133 to be pressed against the edge of the second non-bending region 123, and the flexible portion 132 to correspond to the bending region 112 of the folding module 110 and the bending region 122 of the folding screen 120, without affecting the folding and unfolding of the foldable display device 100.

[0070] In embodiment one, a pressure member 130 is provided at the edge of the folding screen 120, so that the folding screen 120 can be pressed against the folding module 110 to offset the stress on the edge of the folding screen 120, especially the first rigid portion 131 and the second rigid portion 133 of the pressure member 130 are pressed against the edge portions of the first non-bending screen area 121 and the second non-bending screen area 123 adjacent to the bending screen area 122, thereby overcoming the stress on the edge of the folding screen 120, avoiding the separation of the first polymer film layer 1211 of the folding screen 120, and further avoiding the generation of bubbles 124 and cracks here, thereby ensuring the actual effect of the folding screen 120, avoiding the failure of the folding screen 120, and extending the service life of the folding display device 100.

[0071] In embodiment one, the parent-child fixing member 140 can select a parent-child structure suitable for the folding module 110 and the edge pressing member 130, so that the edge pressing member 130 can be set on the folding module 110 and the folding screen 120 can be pressed tightly on the folding module 110.

[0072] As an optional implementation, Figures 5 to 8 As shown, the parent-child fastener 140 of the first embodiment includes:

[0073] A first mother magnet 141 is provided on the first rigid portion 131;

[0074] The second mother magnet 142 is disposed on the second rigid portion 133;

[0075] The first sub-magnet 143 is disposed in the first non-bending region 111 corresponding to the first mother magnet 141 , and the first sub-magnet 143 and the first mother magnet 141 are attracted to each other; and

[0076] The second sub-magnet 144 is disposed in the second non-bending region 113 corresponding to the second mother magnet 142 , and the second sub-magnet 144 and the second mother magnet 142 are attracted to each other.

[0077] In the first embodiment, the first mother magnet 141 and the first sub-magnet 143 attract each other, which enables the first rigid portion 131 to be pressed against the first non-bending region 111, thereby pressing the edge of the first non-bending region 121 of the folding screen 120 against the folding module 110. Similarly, the second mother magnet 142 and the second sub-magnet 144 attract each other, which enables the second rigid portion 133 to be pressed against the second non-bending region 113, thereby pressing the edge of the second non-bending region 123 of the folding screen 120 against the folding module 110. By pressing the edge of the folding screen 120, the problem of film separation caused by stress at the edge of the folding screen 120 is avoided.

[0078] In embodiment one, the folding display device 100 is rectangular, and preferably, first mother magnets 141 are respectively arranged on the two opposite sides of the first rigid part 131 of the edge clamp 130, and first sub-magnets are respectively provided on the two side edges of the first non-bending area 111 of the folding module 110, so that the two sides of the first rigid part 131 of the edge clamp 130 are pressed against the folding module 110 through the first mother magnet 141 and the first sub-magnet 143, so that the edge of the first non-bending screen area 121 of the folding screen 120 is pressed against the first non-bending area 111 of the folding module 110 through the first rigid part 131. Similarly, second mother magnets 142 are respectively arranged on the opposite side edges of the second rigid part 133 of the edge clamp 130, and second sub-magnets are respectively provided on the two side edges of the second non-bending area 113 of the folding module 110, so that the two sides of the second rigid part 133 of the edge clamp 130 are pressed against the folding module 110 through the second mother magnet 142 and the second sub-magnet 144, so that the edge of the second non-bending screen area 123 of the folding screen 120 is pressed against the second non-bending area 113 of the folding module 110 through the first rigid part 131.

[0079] In the first embodiment, Figure 5 As shown, only the cross-sectional view of the edge holding member 130 on one side of the folding display device 100 of this embodiment is shown. In the embodiment of the present application, the structure of one side of the folding display device 100 is used to exemplify the components such as the folding module 110, the folding screen 120, the edge holding member 130 and the parent-child fixing member 140 in the folding display device 100 of this application. The structure of the other side of the folding display device 100 is the same as this and will not be repeated in this application.

[0080] As an optional implementation, Figure 5 and Figure 12 As shown, the foldable display device 100 provided in the second embodiment of the present application is based on the structure of the foldable display device 100 in the first embodiment, and further includes:

[0081] The first rotating shaft 151 is disposed in the first non-bending region 111 and is located on a side of the first sub-magnet 143 adjacent to the bending region 112 . The first rotating shaft 151 is inserted into the first rotating shaft hole 1311 of the first rigid portion 131 .

[0082] The second rotating shaft 152 is disposed in the second non-bending region 113 and is located on a side of the second sub-magnet 144 adjacent to the bending region 112 . The second rotating shaft 152 passes through the first rotating shaft hole 1311 of the second rigid portion 133 ; and

[0083] Support member 160, disposed in the first non-bending area 111 and / or in the second non-bending area 113;

[0084] Moreover, the attraction between the first mother magnet 141 and the second mother magnet 142 is greater than the attraction between the first mother magnet 141 and the first sub-magnet 143, and the attraction between the first mother magnet 141 and the second mother magnet 142 is greater than the attraction between the second mother magnet 142 and the second sub-magnet 144;

[0085] When the folding screen 120 is in the folded state, the support member 160 creates a gap between the first mother magnet 141 and the second mother magnet 142 , and the first mother magnet 141 and the second mother magnet 142 attract each other.

[0086] In embodiment two, when the folding display device 100 is unfolded, the first mother magnet 141 and the first sub-magnet 143 are attracted together, and the second mother magnet 142 and the second sub-magnet 144 are attracted together, thereby fixing the edge holding member 130 on the folding module 110, and pressing the folding screen 120 between the folding module 110 and the edge holding member 130. At the same time, in this state, the folding screen 120 can have a certain displacement space relative to the folding module 110 and the edge holding member 130, so that the folding screen 120 can have a certain displacement range during the folding and unfolding process.

[0087] In the second embodiment, during the folding process of the folding display device 100, the distance between the first mother magnet 141 and the second mother magnet 142 gradually decreases, and an attractive force is generated between the first mother magnet 141 and the second mother magnet 142. Under the action of the attractive force between the first mother magnet 141 and the second mother magnet 142, the first non-bending area 111 and the second non-bending area 113 gradually move closer together. When the folding display device 100 is folded and closed to a certain angle, the support members 160 of the first non-bending area 111 and the second non-bending area 113 collide with each other, and then the folding module 110 and the folding screen 120 stop moving. The support member 160 supports the first non-bending area 111 and the second non-bending area 113, so that there is a gap between the first mother magnet 141 and the second mother magnet 142. The first mother magnet 141 and the second mother magnet 142 cannot directly contact each other, so there is a continuous attractive force. The suction force between the first mother magnet 141 and the second mother magnet 142 is greater than the suction force between the first mother magnet 141 and the first sub-magnet 143, and the suction force between the first mother magnet 141 and the second mother magnet 142 is greater than the suction force between the second mother magnet 142 and the second sub-magnet 144. Under the suction force of the first mother magnet 141 and the second mother magnet 142, the first mother magnet 141 is separated from the first sub-magnet 143, and the second mother magnet 142 is separated from the second sub-magnet 144. Due to the action of the support member 160, the first mother magnet 141 and the second mother magnet 142 cannot directly contact each other. There is a continuous suction force between the first mother magnet 141 and the second mother magnet 142. The first rigid portion 131 and the second rigid portion 133 are between the first mother magnet 141 and the second mother magnet 142. Under the action of the suction force, the first rigid part 131 rotates around the first rotating shaft 151, and the second rigid part 133 rotates around the second rotating shaft 152, so that the end of the first rigid part 131 away from the bending area 112 is lifted up from the folding module 110, and the end of the first rigid part 131 adjacent to the bending area 112 is more tightly pressed on the folding screen 120. At the same time, the end of the second rigid part 133 away from the bending area 112 is lifted up from the folding module 110, and the end of the second rigid part 133 adjacent to the bending area 112 is more tightly pressed on the folding screen 120. The edge part of the folding screen 120 adjacent to the bending screen area 122 is pressed on the folding module 110, offsetting the tensile stress of the folding screen 120 in the thickness direction, so that the colloid inside the folding screen 120 is not easy to fail and the film layer is not easy to separate.

[0088] In the second embodiment, during the unfolding process of the folding display device 100, the distance between the first mother magnet 141 and the second mother magnet 142 gradually increases, and the suction force generated between the first mother magnet 141 and the second mother magnet 142 gradually decreases until the suction force between the first mother magnet 141 and the second mother magnet 142 is less than the suction force between the first mother magnet 141 and the first sub-magnet 143 and the suction force between the second mother magnet 142 and the second sub-magnet 144. The first mother magnet 141 and the first sub-magnet 143 are attracted together again, and at the same time, the second mother magnet 142 and the second sub-magnet 144 are attracted together again, thereby releasing part of the pressure applied to the edge of the folding screen 120 adjacent to the bending screen area 122, and the folding screen 120 can be displaced relative to the folding module 110 and the edge holding member 130, so that the folding screen 120 switches to a flattened state.

[0089] In the second embodiment, the difference from the first embodiment is that the pressing state of the edge pressing member 130 on the folding screen 120 on the folding module 110 is different. In the folding process of the folding display device 100 of the second embodiment, under the suction force between the first mother magnet 141 and the second mother magnet 142, the force exerted on the folding screen 120 by one end of the first rigid part 131 adjacent to the bending area 112 and the force exerted on the folding screen 120 by one end of the second rigid part 133 adjacent to the bending area 112 gradually increase, pressing the edge of the folding screen 120 on the folding module 110, so that the folding The screen 120 is not prone to cracks 125 and arching; during the unfolding process of the folding display device 100, the force exerted on the folding screen 120 by one end of the first rigid part 131 adjacent to the bending area 112 and the force exerted on the folding screen 120 by one end of the second rigid part 133 adjacent to the bending area 112 gradually decrease, and the edge clamp 130 is no longer pressed tightly on the edge of the folding screen 120 adjacent to the bending screen area 122, leaving space for the folding screen 120 to move between the edge clamp 130 and the folding module 110, allowing the folding screen 120 to move to a flattened state under the edge clamp 130.

[0090] In the second embodiment, in order to make the first mother magnet 141 and the first sub-magnet 143 attract each other, after the first mother magnet 141 and the first sub-magnet 143 are fixed at their setting positions, the magnetic poles of the first mother magnet 141 and the first sub-magnet 143 are opposite; similarly, after the second mother magnet 142 and the second sub-magnet 144 are fixed at their setting positions, the magnetic poles of the second mother magnet 142 and the second sub-magnet 144 are opposite; when the folding screen 120 is in the folded state, the magnetic poles of the first mother magnet 141 and the second mother magnet 142 are opposite.

[0091] In the second embodiment, the attractive force between the first mother magnet 141 and the second mother magnet 142 is greater than the attractive force between the first mother magnet 141 and the first sub-magnet 143, and the attractive force between the first mother magnet 141 and the second mother magnet 142 is greater than the attractive force between the second mother magnet 142 and the second sub-magnet 144. Thus, when the foldable display device 100 is folded, the attractive force of the first mother magnet 141 and the second mother magnet 142 causes the ends of the first rigid portion 131 and the second rigid portion 133 away from the bending region 112 to separate from the folding module 110, thereby causing the ends of the first rigid portion 131 and the second rigid portion 133 adjacent to the bending region 112 to be pressed against the folding screen 120 on the folding module 110.

[0092] The magnitude of the magnetic attraction is related to the volume and density of the magnet. The larger the volume and density of the magnet, the greater the attraction. In the second embodiment, the first mother magnet 141, the second mother magnet 142, the first sub-magnet 143 and the second sub-magnet 144 can be made of the same magnetic material, and the volume of the first mother magnet 141 and the second mother magnet 142 is larger than the volume of the first sub-magnet 143 and the second sub-magnet 144, respectively, to ensure that the attraction between the first mother magnet 141 and the second mother magnet 142 is greater than the attraction between the first mother magnet 141 and the first sub-magnet 143, and the attraction between the first mother magnet 141 and the second mother magnet 142 is greater than the attraction between the second mother magnet 142 and the second sub-magnet 144.

[0093] As an optional implementation, in Example 2, if Figure 5 As shown, the distance between the first sub-magnet 143 and the first rotating shaft 151 is greater than the distance between the bending area 112 and the first rotating shaft 151 , and the distance between the second sub-magnet 144 and the second rotating shaft 152 is greater than the distance between the bending area 112 and the second rotating shaft 152 .

[0094] In embodiment two, since the distance between the first sub-magnet 143 and the first rotating shaft 151 is greater than the distance between the bending zone 112 and the first rotating shaft 151, the force arm of the first rigid part 131 away from the bending screen zone 122 is greater than the force arm of the first rigid part 131 adjacent to the bending screen zone 122, forming a force-enhancing lever, thereby increasing the pressure on the side of the first rigid part 131 adjacent to the bending screen zone 122, and increasing the force on the edge of the folding screen 120 adjacent to the bending screen zone 122; similarly, since the distance between the second sub-magnet 144 and the second rotating shaft 152 is greater than the distance between the bending zone 112 and the second rotating shaft 152, the force arm of the second rigid part 133 away from the bending screen zone 122 is greater than the force arm of the second rigid part 133 adjacent to the bending screen zone 122, forming a force-enhancing lever, thereby increasing the pressure on the side of the second rigid part 133 adjacent to the bending screen zone 122, and increasing the force on the edge of the folding screen 120 adjacent to the bending screen zone 122.

[0095] As an optional embodiment, in the folding display device 100 of the second embodiment, as shown in FIG9 to FIG9 , Figure 11 As shown, the first rotating shaft 151 is arranged at the edge of the first non-bending area 111, and a first rotating shaft avoidance opening is provided at a position corresponding to the first rigid portion 131 and the first rotating shaft 151;

[0096] The second rotation axis 152 is disposed at the edge of the second non-bending area 113 , and a second rotation axis avoidance opening is provided at a position corresponding to the second rigid portion 133 and the second rotation axis 152 ;

[0097] The support member 160 is arranged at the edge of the first non-bending area 111 and / or the second non-bending area 113 , and a support member avoidance opening is provided at a position corresponding to the edge holding member 130 and the support member 160 .

[0098] In this embodiment, by providing a first rotation axis avoidance opening, a second rotation axis avoidance opening and a support member avoidance opening, interference between the edge holding member 130 and the first rotation axis 151, the second rotation axis 152 and the support member 160 can be avoided, that is, the first rigid portion 131 and the second rigid portion 133 of the edge holding member 130 can adaptively rotate slightly around the rotation axis as the folding display device 100 is folded and unfolded, and the support member 160 of the first non-bending area 111 and the support member 160 of the second non-bending area 113 can conflict with each other.

[0099] In the second embodiment, optionally, Figure 9 As shown, the support member 160 includes a base 161 provided on the folding module 110 and a support portion 162 provided on the base 161 , and the direct contact between the first non-bending screen area 121 and the second non-bending screen area 123 is supported by the abutment between the support portions 162 .

[0100] In the second embodiment, optionally, Figure 5 ,like Figure 10 as well as Figure 11 As shown, the rotating shaft assembly 150 comprises a first rotating shaft 151, a first rotating shaft support 1511 for supporting the first rotating shaft 151, a second rotating shaft 152, and a second rotating shaft support for supporting the second rotating shaft 152. Specifically, the first rotating shaft 151 further comprises a first rotating shaft support 1511 disposed on the first non-bending region 111 of the folding module 110. The first rotating shaft 151 is disposed on the first rotating shaft support 1511 so that the first rotating shaft 151 can match the height of the first rigid portion 131. Furthermore, a first rotating shaft hole 1311 is correspondingly formed on the first rigid portion 131, and a first rotating shaft avoidance opening is provided for avoiding the first rotating shaft support 1511. Therefore, after the first rotating shaft 151 is installed in the first rotating shaft hole 1311 of the first rigid portion 131, the first rotating shaft support 1511 is located in the first rotating shaft avoidance opening, thereby making the first rigid portion 131 and the first rotating shaft 151 flush in appearance. The second rotating shaft 152 is configured in the same manner as the first rotating shaft 151 and will not be further described herein.

[0101] As an optional implementation, in Example 2, if Figure 8 As shown, the first non-bending area 111 defines a first groove 1111 , in which the first sub-magnet 143 is fixed; the second non-bending area 113 defines a second groove, in which the second sub-magnet 144 is fixed.

[0102] In embodiment two, by setting the first sub-magnet 143 in the first groove 1111 and the second sub-magnet 144 in the second groove, the surface of the first non-bending area 111 and the surface of the second non-bending area 113 can be smoothed, so that the folding screen 120 can be displaced on the first non-bending area 111 and the second non-bending area 113 of the folding module 110.

[0103] As an optional implementation, Figure 5 and Figure 6 As shown, the folding display device 100 of the second embodiment further includes a sealing strip 170, which is disposed between the folding module 110 and the edge holding member 130. Optionally, the sealing strip 170 may be made of a foam material.

[0104] In the second embodiment, a sealing strip 170 is provided between the folding module 110 and the edge clamp 130. This sealing strip 170 has a certain degree of deformability. When the folding display device 100 is unfolded, the sealing strip 170 creates a space between the edge clamp 130 and the folding module 110 to accommodate the shifting of the folding screen 120. When the folding display device 100 is folded, the first and second rigid portions 131 and 133 of the edge clamp 130, adjacent to the bending region 112, press against the sealing strip 170, deforming the sealing strip 170 to eliminate the aforementioned space and compress the folding screen 120.

[0105] More preferably, Figure 5 and Figure 6 As shown, the sealing strip 170 is arranged around the folding screen 120.

[0106] The sealing strip 170 arranged around the folding screen 120 can also play a role in isolating dust, preventing dust from entering between the folding screen 120 and the folding module 110 or between the folding screen 120 and the edge pressing piece 130.

[0107] Based on the same inventive concept, an embodiment of the present application further provides an electronic device, which includes the above-mentioned folding display device 100.

[0108] Since the electronic device provided by the present invention includes the folding display device 100 of the above technical solution, the electronic device provided by the present invention has all the beneficial effects of the above folding display device 100, which will not be described in detail here.

[0109] In this application, unless otherwise expressly specified or limited, a first feature being "above" or "below" a second feature may include the first and second features being in direct contact, or may include the first and second features being in contact not directly but through another feature between them. Moreover, a first feature being "above," "above," and "above" a second feature may include the first feature being directly above or obliquely above the second feature, or may simply mean that the first feature is higher in level than the second feature. A first feature being "below," "below," and "below" a second feature may include the first feature being directly below or obliquely below the second feature, or may simply mean that the first feature is lower in level than the second feature.

[0110] In the description of the present application, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise" and "counterclockwise" indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present application.

[0111] It should be noted that all directional indications in the embodiments of the present application are only used to explain the relative position relationship, movement status, etc. between the components in a certain specific posture. If the specific posture changes, the directional indication will also change accordingly.

[0112] In this application, unless otherwise specified or limited, the terms "connection" and "fixation" should be understood in a broad sense. For example, "fixation" can mean fixed connection, detachable connection, or integration; mechanical connection or electrical connection; direct connection or indirect connection through an intermediate medium; internal communication between two elements or interaction between two elements, unless otherwise specified. For those skilled in the art, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0113] In addition, the terms "first," "second," and so on, used in this application are for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature specified as "first" or "second" may explicitly or implicitly include one or more of the features. In the description of this application, "plurality" means two or more, unless otherwise specifically defined.

[0114] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "example", "specific example", or "some examples" means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present application. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art can combine and combine different embodiments or examples described in this specification.

[0115] In addition, the technical solutions between the various embodiments can be combined with each other, but they must be based on the fact that ordinary technicians in this field can implement them. When the combination of technical solutions is mutually contradictory or cannot be implemented, it should be deemed that such a combination of technical solutions does not exist and is not within the scope of protection required by this application.

[0116] Although the embodiments of the present application have been shown and described, those skilled in the art will appreciate that various changes, modifications, substitutions, and variations may be made to the embodiments without departing from the principles and intent of the present application, and that the scope of the present application is defined by the claims and their equivalents.

Claims

1. A foldable display device, characterized in that: The foldable display device comprises: The folding module comprises a first non-bending area, a bending area and a second non-bending area connected in sequence; a folding screen, provided on the folding module, comprising a first non-bending screen area corresponding to the first non-bending area, a bending screen area corresponding to the bending area, and a second non-bending screen area corresponding to the second non-bending area; a pressure member connected to the folding module, the pressure member being pressed at least on an edge where the first non-bending screen area connects to the bending screen area and an edge where the second non-bending screen area connects to the bending screen area, the pressure member comprising a first rigid portion corresponding to the edge of the first non-bending screen area, a flexible portion corresponding to the bending screen area, and a second rigid portion corresponding to the second non-bending screen area; The parent-child fixing parts are respectively arranged on the folding module and the edge holding part to press the edge holding part tightly to the edge of the folding screen; the parent-child fixing parts include: a first mother magnet, arranged on the first rigid part; a second mother magnet, arranged on the second rigid part; a first sub-magnet, arranged in the first non-bending area corresponding to the first mother magnet, and the first sub-magnet is attracted to the first mother magnet; and a second sub-magnet, arranged in the second non-bending area corresponding to the second mother magnet, and the second sub-magnet is attracted to the second mother magnet; and, a support member, arranged in the first non-bending area and / or in the second non-bending area, and located on a side of the parent-child fastener close to the bending area; The attraction between the first mother magnet and the second mother magnet is greater than the attraction between the first mother magnet and the first sub-magnet, and the attraction between the first mother magnet and the second mother magnet is greater than the attraction between the second mother magnet and the second sub-magnet; When the folding screen is in a folded state, the support member creates a gap between the first mother magnet and the second mother magnet, and the first mother magnet and the second mother magnet attract each other.

2. The foldable display device according to claim 1, wherein: The edge pressing member is frame-shaped and is pressed onto the four edges of the folding screen.

3. The foldable display device according to claim 1, wherein: The foldable display device further includes: a first rotating shaft, disposed in the first non-bending region and located on a side of the first sub-magnet adjacent to the bending region, the first rotating shaft passing through a first rotating shaft hole in the first rigid portion; The second rotating shaft is arranged in the second non-bending area and is located on a side of the second sub-magnet adjacent to the bending area. The second rotating shaft passes through the first rotating shaft hole of the second rigid part.

4. The foldable display device according to claim 3, wherein: The distance between the first sub-magnet and the first rotating shaft is greater than the distance between the bending area and the first rotating shaft, and the distance between the second sub-magnet and the second rotating shaft is greater than the distance between the bending area and the second rotating shaft.

5. The foldable display device according to claim 3, wherein: The first rotating shaft is arranged at the edge of the first non-bending area, and a first rotating shaft avoidance opening is provided at a position corresponding to the first rigid portion and the first rotating shaft; The second rotating shaft is arranged at the edge of the second non-bending area, and a second rotating shaft avoidance opening is provided at a position corresponding to the second rigid portion and the second rotating shaft; The support member is arranged at the edge of the first non-bending area and / or the second non-bending area, and a support member avoidance opening is provided at the corresponding position of the edge holding member and the support member.

6. The foldable display device according to claim 3, wherein: The first non-bending area is provided with a first groove, and the first sub-magnet is fixed in the first groove; the second non-bending area is provided with a second groove, and the second sub-magnet is fixed in the second groove.

7. The foldable display device according to any one of claims 1 to 6, wherein: The foldable display device further includes: A sealing strip is provided between the folding module and the edge holding member.

8. An electronic device, characterized in that: The electronic device includes the foldable display device according to any one of claims 1 to 7.

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