WO2020143202A1 - 柔性显示装置 - Google Patents

柔性显示装置 Download PDF

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Publication number
WO2020143202A1
WO2020143202A1 PCT/CN2019/095733 CN2019095733W WO2020143202A1 WO 2020143202 A1 WO2020143202 A1 WO 2020143202A1 CN 2019095733 W CN2019095733 W CN 2019095733W WO 2020143202 A1 WO2020143202 A1 WO 2020143202A1
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WIPO (PCT)
Prior art keywords
flexible display
display screen
electromagnet
magnet
display device
Prior art date
Application number
PCT/CN2019/095733
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English (en)
French (fr)
Inventor
王留洋
廖富
吴雨华
后红琪
朱召吉
孙康龙
Original Assignee
云谷（固安）科技有限公司
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Application filed by 云谷（固安）科技有限公司 filed Critical 云谷（固安）科技有限公司
Publication of WO2020143202A1 publication Critical patent/WO2020143202A1/zh

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    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09F—DISPLAYING; ADVERTISING; SIGNS; LABELS OR NAME-PLATES; SEALS
    • G09F9/00—Indicating arrangements for variable information in which the information is built-up on a support by selection or combination of individual elements
    • G09F9/30—Indicating arrangements for variable information in which the information is built-up on a support by selection or combination of individual elements in which the desired character or characters are formed by combining individual elements
    • G09F9/301—Indicating arrangements for variable information in which the information is built-up on a support by selection or combination of individual elements in which the desired character or characters are formed by combining individual elements flexible foldable or roll-able electronic displays, e.g. thin LCD, OLED

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  • the present application relates to the field of display technology, in particular to a flexible display device.
  • the embodiments of the present application are committed to providing a flexible display device to solve the problem that the flexible display screen in the prior art may be damaged when folded.
  • the present application provides a flexible display device, including: a flexible display screen, including a bending area; a supporting component disposed in close contact with the bending area; a shrinking component disposed around the supporting component; and a driving component configured to drive shrinkage
  • the assembly switches between moving in a direction close to the flexible display screen and moving in a direction away from the flexible display screen.
  • the support assembly includes at least one support magnet
  • the contraction assembly includes at least one contraction magnet attracted to the periphery of the at least one support magnet
  • At least one supporting magnet and at least one shrinking magnet are arranged in parallel and are all cylindrical.
  • the driving assembly includes at least one first electromagnet and at least one second electromagnet disposed at the edge of the bending zone; wherein, the shrinking magnet is under the action of the first attractive force of the first electromagnet Moving in a direction close to the flexible display screen, the contraction magnet moves in a direction away from the flexible display screen under the action of the second attractive force of the second electromagnet.
  • the driving assembly further includes a first pressure sensor and a controller disposed on the first electromagnet, wherein the first electromagnet, the second electromagnet, and the first pressure sensor are all electrically connected to the controller Connected, the controller is configured to: receive a first pressure signal sent by the first pressure sensor, wherein the first pressure signal is used to indicate that the pressure of the contracting magnet on the first electromagnet is gradually increasing; and the first pressure signal is gradually reduced according to the first pressure signal Attractiveness; and gradually increasing the second attractiveness based on the first pressure signal.
  • the driving assembly further includes a second pressure sensor disposed on the second electromagnet and electrically connected to the controller, wherein the controller is further configured to: receive the second pressure sent by the second pressure sensor Signal, wherein the second pressure signal is used to indicate that the pressure of the contracting magnet on the second electromagnet is gradually decreasing; gradually increasing the first attractive force according to the second pressure signal; and gradually decreasing the second attractive force according to the second pressure signal.
  • the third attraction force of the at least one support magnet to the contraction magnet is greater than the maximum value of the second attraction force, and/or, the maximum value of the first attraction force.
  • the distance from the center of gravity of the second electromagnet to the flexible display screen is greater than the distance from the center of gravity of the first electromagnet to the flexible display screen.
  • one of the at least one supporting magnet is fixed on the flexible display screen.
  • the flexible display screen further includes a first flat area and a second flat area located on opposite sides of the bending area
  • the flexible display device further includes a first support portion and a support that support the first flat area The second support portion of the second flat area, wherein the first support portion and the second support portion limit the bending of the bending area by mutual contact of the respective bottom surfaces.
  • At least the first electromagnet and at least one second electromagnet are disposed between the first support portion and the flexible display screen, and/or between the second support portion and the flexible display screen.
  • the contraction assembly includes two contraction magnets, which are respectively located at two ends of the at least one support magnet arranged in parallel.
  • At least one of the support magnets located in the middle of the support magnet is fixed on the flexible display screen.
  • the surfaces of the first support portion and the second support portion that are in contact with each other are flat.
  • the axis of symmetry of the flexible display screen is disposed in the bending region, and the bending region is axisymmetric according to the axis of symmetry.
  • the bending area can be jointly supported by the support component and the contraction component when the flexible display screen is in a flat state, and when the flexible display screen is folded In the state, the bending area can continue to be supported by the support component and the shrinking component moves away from the flexible display screen, thereby vacating the shrinkage space of the flexible display screen, thereby effectively avoiding the bending area due to the tensile force exceeding the tensile force
  • the mechanical fracture caused by the limit effectively avoids the damage of the flexible display screen.
  • FIG. 1 is a partial schematic structural diagram of a flexible display device in a folded state according to an embodiment of the present application.
  • FIG. 2 is a partial schematic structural diagram of a flexible display device according to an embodiment of the present application in a tiled state.
  • FIG. 3 is a schematic flowchart of controller configuration according to an embodiment of the present application.
  • FIG. 4 is a schematic flowchart of a controller configuration according to another embodiment of the present application.
  • FIG. 5 is a schematic structural diagram of a flexible display device in a folded state according to an embodiment of the present application.
  • FIG. 6 is a schematic structural diagram of a flexible display device according to an embodiment of the present application in a tiled state.
  • the flexible display screen is easily damaged when folded, thereby affecting the service life of the flexible display device.
  • the reason for this problem is that, in order to enable the flexible display screen to display in a flat state, the non-display side of the flexible display screen is usually provided with a member having a certain hardness to support the flexible display screen. In this way, when the flexible display screen is folded, the member is also folded. Due to the high hardness of the component, it is not easy to deform elastically, so in the folded state, the bending area of the flexible display screen will be in a pulled state, and as the degree of folding increases, the bending area of the flexible display screen will suffer The tension will gradually increase. When the tensile force exceeds the limit of the tensile force that the flexible display screen can bear, the flexible display screen will mechanically break, resulting in damage to the screen body.
  • the inventor has researched that if it is in the folded state, the bending force on the bending area of the flexible display screen can be less than the limit of the tensile force that the flexible display screen can withstand, and the flexible display screen will not be prone to mechanical It can effectively prevent the flexible display from being easily damaged when folded.
  • FIG. 1 is a partial schematic structural diagram of a flexible display device in a folded state according to an embodiment of the present application.
  • the present application provides a flexible display device.
  • the flexible display device includes: a flexible display screen 1 including a bending area 11; a supporting assembly 01 provided in conformity with the bending area 11; The contraction assembly 02 on the periphery of the support assembly 01; and the drive assembly 03, configured to drive the contraction assembly 02 to switch between moving in the direction close to the flexible display screen 1 and moving in the direction away from the flexible display screen 1.
  • an area on the flexible display screen 1 where bending and deformation occurs may be referred to as a bending area 11.
  • the support assembly 01 can be used to support the bending area 11 of the flexible display device, and the support assembly 01 can be attached to the bending area 11 regardless of whether it is in a tiled state or a folded state. In the tiled state, the contraction assembly 02 and the support assembly 01 can jointly support the bending zone 11.
  • the contraction assembly 02 can move in a direction away from the flexible display screen 1, thereby eliminating the support effect on the bending area 11, and vacating the shrinkage space of the flexible display screen 1, thereby reducing the flexibility
  • the pulling force on the display screen 1 prevents the flexible display screen 1 from being damaged.
  • the contraction assembly 02 can move in the direction of approaching the flexible display screen 1 again, thereby restoring the support effect on the bending zone 11.
  • the shrinking component 02 can be switched between moving in the direction close to the flexible display screen 1 and moving in the direction away from the flexible display screen 1 under the driving action of the driving component 03.
  • the support assembly 01 may be composed of magnets attracted to each other, or may be a chain-like structure composed of multiple links connected end to end.
  • the support assembly 01 includes magnets, one of the two adjacent magnets can rotate around the other magnet.
  • the contraction assembly 02 may be composed of a magnet.
  • the contraction assembly 02 may also be composed of links.
  • the bending area 11 can be shared by the support assembly 01 and the shrinking assembly 02 when the flexible display screen 1 is in a flat state Support, when the flexible display screen 1 is in the folded state, the bending area 11 can continue to be supported by the support assembly 01, and the contraction assembly 02 moves away from the flexible display screen 1, thereby vacating the shrinkage space of the flexible display screen 1
  • the mechanical fracture caused by the bending force of the bending zone 11 exceeding the tensile strength limit is effectively avoided, and the damage of the flexible display screen 1 is effectively avoided.
  • the flexible display device may include: a flexible display screen 1 including a bending region 11; at least one supporting magnet 3 supporting the bending region 11; and at least one shrinking magnet 2; wherein, the contraction magnet 2 is switched between moving in the direction close to the flexible display screen 1 and moving in the direction away from the flexible display screen 1.
  • the shrinking magnet 2 moves in a direction close to the flexible display screen 1 to support the bending region 11; the shrinking magnet 2 moves in a direction away from the flexible display screen 1 so as to free the shrinkage space of the flexible display screen 1.
  • a supporting magnet 3 for supporting the bending area 11 is provided at a position corresponding to the bending area 11.
  • the number of support magnets 3 may be one or more, and the number of support magnets 3 is not limited here.
  • the number of shrinking magnets 2 may be one or more.
  • the bending zone 11 When the flexible display screen 1 is in a tiled state, the bending zone 11 is also in a flat state. At this time, the bending zone 11 is supported by the support magnet 3 and the contraction magnet 2 together.
  • the bending zone 11 When the flexible display screen 1 transitions from the tiled state to the folded state, that is, when the flexible display device is folded, the bending zone 11 will gradually change to the bending state, and in the process, the bending zone 11 continues to be supported by the support magnet 3, However, the shrinking magnet 2 gradually moves away from the flexible display screen 1.
  • the bending area 11 needs to be elongated, but the elongation of the bending area 11 needs to increase the tensile force to which the flexible display screen 1 is subjected.
  • the shrinkage space of the flexible display screen 1 will be vacated, thereby effectively avoiding the forced support of the bending zone 11 by multiple magnets, thereby effectively reducing the bending zone 11 The pulling force.
  • the reason for the forced support is that because the multiple magnets supporting the bending zone 11 cannot be compressed during folding, the support function is forcibly performed, thereby lengthening the flexible display 1 and thereby increasing the flexible display 1 in The pulling force on the bending zone 11.
  • the bending area 11 of the flexible display screen 1 bears the greatest tensile force. Therefore, when the bending force of the bending area 11 decreases, the probability of mechanical breakage of the flexible display screen 1 will be greatly reduced.
  • the bending zone 11 When the flexible display screen 1 transitions from the folded state to the tiled state, that is, when the flexible display device is tiled, the bending zone 11 will gradually change to the flat state. During this process, the bending zone 11 continues to be supported by the support magnet 3, but There will be a region without magnet support on the bending zone 11. In order to avoid the phenomenon that there is no magnet support and wrinkling when the bending zone 11 is in a flat state, the shrinking magnet 2 gradually moves closer to the flexible display screen 1, Thereby, continued support of the bending zone 11 is achieved.
  • the support magnet 3 and the shrinking magnet 2 are provided in the bending area 11 of the flexible display screen 1, so that when the flexible display screen 1 is in a flat state, the bending area 11 can be shared by the support magnet 3 and the shrinking magnet 2 Support, when the flexible display screen 1 is in the folded state, the bending area 11 can continue to be supported by the supporting magnet 3, and the contraction magnet 2 moves away from the flexible display screen 1, thereby effectively avoiding the bending area 11 due to The mechanical fracture caused by the tensile force exceeding the tensile strength limit effectively avoids damage to the flexible display screen 1.
  • FIG. 2 is a partial schematic structural diagram of a flexible display device according to an embodiment of the present application in a tiled state.
  • the flexible display device may further include at least one first electromagnet 4 and at least one second electromagnet 5 disposed at the edge of the bending zone 11; wherein, the shrinking magnet 2 Under the action of the first attraction of the first electromagnet 4, it moves in the direction close to the flexible display screen 1, and the contraction magnet 2 moves in the direction away from the flexible display screen 1 under the action of the second attraction of the second electromagnet 5, .
  • the switching of the contraction magnet 2 between moving in the direction close to the flexible display screen 1 and moving in the direction away from the flexible display screen 1 can be controlled by the first electromagnet 4 and the second electromagnet 5.
  • the first attractive force and the second attractive force are not fixed, but can be changed as the magnetic field strength of the first electromagnet 4 and the second electromagnet 5 changes, so that the contraction magnet 2 can be Under the action of the first attractive force and the second attractive force, switching between moving in the direction close to the flexible display screen 1 and moving in the direction away from the flexible display screen 1 is completed.
  • the first electromagnet 4 and the second electromagnet 5 may be preferably disposed at the edge of the bending zone 11.
  • the installation positions of the first electromagnet 4 and the second electromagnet 5 may or may not belong to the bending area 11, here for the first electromagnet 4 and the second electromagnet 5 Whether the installation position belongs to the bending zone 11 is not specifically limited.
  • At least one shrinking magnet 2 may be attracted to the periphery of at least one supporting magnet 3.
  • the first electromagnet 4 and the second electromagnet 5 are disposed at the edge of the bending region 11, in order to make the mutual attraction between the first electromagnet 4 and the second electromagnet 5 and the contraction magnet 2 can be To maximize, at least one shrink magnet 2 can be attracted to the periphery of at least one support magnet 3, so that the distance between the shrink magnet 2 and the first electromagnet 4 and the second electromagnet 5 can be shortened.
  • the number of shrinking magnets 2 may be two, which are located at both ends of the support magnets 3 arranged in parallel.
  • FIG. 3 is a schematic flowchart of the configuration of the controller 300 according to an embodiment of the present application.
  • the display device may further include a first pressure sensor 7 and a controller 300 provided on the first electromagnet 4, wherein the first electromagnet 4 and the second electromagnetic The iron 5 and the first pressure sensor 7 are electrically connected to the controller 300.
  • the controller 300 may be configured as:
  • Step 310 Receive a first pressure signal sent by the first pressure sensor 7, where the first pressure signal is used to indicate that the pressure of the contracting magnet 2 on the first electromagnet 4 is gradually increasing.
  • the first pressure sensor 7 may be disposed on the surface of the first electromagnet 4 facing the shrinking magnet 2 so that the first pressure sensor 7 can sense the pressure of the shrinking magnet 2 on the first electromagnet 4.
  • the shrinking magnet 2 supports the bending region 11, the shrinking magnet 2 can be attracted to the first electromagnet 4.
  • the pressure of the contracting magnet 2 on the first electromagnet 4 gradually increases due to the mutual compression of the multiple magnets supporting the bending zone 11.
  • the gradually increasing pressure information may constitute a first pressure signal and be sent by the first pressure sensor 7 to the controller 300, so that the controller 300 can know that the flexible display screen 1 is transitioning from the tiled state to the folded state.
  • Step 320 Reduce the first attractive force gradually according to the first pressure signal.
  • the first attractive force is the attractive force of the first electromagnet 4 to the contracted magnet 2
  • the magnitude of the first attractive force can be controlled by the magnetic field strength of the first electromagnet 4
  • the magnetic field strength of the first electromagnet 4 can be determined by
  • the current flowing through the first electromagnet 4 is controlled, and the current flowing through the first electromagnet 4 can be controlled by the controller 300.
  • the controller 300 controls the current flowing through the first electromagnet 4 to gradually decrease, thereby gradually reducing the first attractive force.
  • the current flowing through the first electromagnet 4 may be gradually reduced according to the first preset frequency.
  • Step 330 Increase the second attractive force gradually according to the first pressure signal.
  • the second attractive force is the attractive force of the second electromagnet 5 to the contracted magnet 2
  • the magnitude of the second attractive force can be controlled by the magnetic field strength of the second electromagnet 5
  • the magnetic field strength of the second electromagnet 5 can be determined by
  • the current flowing through the second electromagnet 5 is controlled, and the current flowing through the second electromagnet 5 can also be controlled by the controller 300.
  • the controller 300 controls the current flowing through the second electromagnet 5 to gradually increase, thereby gradually increasing the second attractive force.
  • the controller 300 When the controller 300 controls the current flowing through the first electromagnet 4 to gradually decrease according to the first preset frequency, it may also control the current flowing through the second electromagnet 5 to gradually increase according to the second preset frequency.
  • the second attractive force is large enough, and when the flexible display screen 1 is folded, the squeezing force between the multiple magnets supporting the bending zone 11 is large enough, the shrinking magnet 2 will be in the second attractive force and the squeezing force Under the joint action of, it automatically moves in the direction away from the flexible display screen 1, thereby reducing the tensile force on the bending zone 11.
  • first preset frequency and the second preset frequency may be the same or different, which is not limited herein.
  • FIG. 4 is a schematic flowchart of the configuration of the controller 300 according to another embodiment of the present application.
  • the display device may further include a second pressure sensor 8 disposed on the second electromagnet 5 and electrically connected to the controller 300, wherein, as shown in FIG. 4,
  • the controller 300 may be further configured as:
  • Step 410 Receive a second pressure signal sent by the second pressure sensor 8, where the second pressure signal is used to indicate that the pressure of the contracting magnet 2 on the second electromagnet 5 is gradually decreasing.
  • the shrinking magnet 2 will be attracted to the second electromagnet 5 after moving in a direction away from the flexible display screen 1.
  • the third attraction force of the at least one support magnet 3 to the contraction magnet 2 is greater than the maximum value of the second attraction force, and in the case of multiple support magnets 3,
  • a plurality of side-by-side support magnets 3 will also change to a flat side-by-side state with the change of the bending zone 11 state.
  • the pressure of the contracting magnet 2 on the second electromagnet 5 will gradually decrease.
  • the gradually reduced pressure information constitutes a second pressure signal and is sent by the second pressure sensor 8 to the controller 300 so that the controller 300 can know that the flexible display screen 1 is transitioning from the folded state to the tiled state.
  • the third attraction force of the at least one support magnet 3 to the contraction magnet 2 is greater than the maximum value of the second attraction force and also greater than the first attraction force The maximum value.
  • Step 420 Increase the first attractive force gradually according to the second pressure signal.
  • controller 300 may also control the current flowing through the first electromagnet 4 to gradually increase, thereby gradually increasing the first attractive force.
  • the current flowing through the first electromagnet 4 may be gradually increased according to the third preset frequency.
  • Step 430 Gradually reduce the second attractive force according to the second pressure signal.
  • controller 300 may also control the current flowing through the second electromagnet 5 to gradually decrease, thereby gradually reducing the second attractive force.
  • controller 300 controls the current flowing through the first electromagnet 4 to gradually increase according to the third preset frequency, it may also control the current flowing through the second electromagnet 5 to gradually decrease according to the fourth preset frequency.
  • the contraction magnet 2 will approach the flexible display screen 1 under the synergy of the first attractive force and the third attractive force, and continue to support the bending area 11.
  • the third preset frequency and the fourth preset frequency may be the same or different.
  • the first preset frequency and the third preset frequency or the fourth preset frequency may be the same or different.
  • the second preset frequency is the same.
  • the distance from the center of gravity of the second electromagnet 5 to the flexible display 1 is greater than the center of gravity of the first electromagnet 4 to flexibility The distance of display 1.
  • the first electromagnet 4 may be fixed on the flexible display screen 1, and accordingly, the second electromagnet 5 may be fixed on the first electromagnet 4.
  • the first electromagnet 4 and the second electromagnet 5 can also be fixed on the flexible display 1, but the center of gravity of the second electromagnet 5 is higher than the center of gravity of the first electromagnet 4, so as to realize the contraction of the magnet 2 can move in a direction away from the flexible display screen 1 under the attraction of the second electromagnet 5.
  • the center of gravity of each electromagnet may refer to the center of force of various external forces to which the electromagnet is subjected.
  • At least one supporting magnet 3 may be preferably arranged in parallel.
  • one of the at least one support magnet 3 may be fixed on the flexible display screen 1.
  • the fixed support magnet 3 may be preferably located in the middle, for example, as the one marked as A in FIG. 2. It should be understood that for the case where the number of supporting magnets 3 is double, any one of the two in the middle may be selected.
  • the supporting magnet 3 in order to facilitate the folding deformation of the flexible display screen 1, the bending deformation of the bending zone 11 is minimized, that is, the tensile force is minimized, the supporting magnet 3 needs to be able to move along the adjacent
  • the surface of the support magnet 3 moves, and for this purpose, at least one support magnet 3 may preferably be cylindrical.
  • at least one of the shrinking magnets 2 may also preferably be cylindrical.
  • FIG. 5 is a schematic structural diagram of a flexible display device in a folded state according to an embodiment of the present application, where the area enclosed by the dotted line may be as shown in FIG. 2.
  • FIG. 6 is a schematic structural diagram of a flexible display device according to an embodiment of the present application in a tiled state, where the area enclosed by the dotted line may be as shown in FIG. 1.
  • the flexible display screen 1 may further include a first flat area 121 and a second flat area 122 located on opposite sides of the bending area 11.
  • the flexible display device It may further include a first support portion 61 supporting the first flat area 121 and a second support portion 62 supporting the second flat area 122, wherein the first support portion 61 and the second support portion 62 may come into contact with each other by the bottom surfaces The bending of the bending zone 11 is restricted.
  • the axis of symmetry of the flexible display screen 1 may be located in the bending area 11.
  • the bending zone 11 may also be axisymmetric according to the axis of symmetry.
  • the first flat area 121 and the second flat area 122 may be symmetrical with respect to the bending area 11.
  • the first support portion 61 and the second support portion 62 can be relatively in contact, and the contact surfaces can be both flat, which can be called a bottom surface, so that the first support portion 61 and the second support portion 62 The support portion 62 may restrict further bending of the bending area 11.
  • the bending state of the bending area 11 of the flexible display screen 1 may be semicircular, thereby meeting the aesthetic needs of the user.
  • first flat area 121 and the second flat area 122 may also be asymmetrically arranged, which is not limited herein.
  • the mutual contact of the bottom surfaces of the first support portion 61 and the second support portion 62 may also limit the further bending of the bending area 11.
  • the bending zone 11 and the first flat area 121 and the second flat area 122 may all be adjacent to each other.
  • the first electromagnet 4 and the second electromagnet 5 can be provided on the first support portion 61 and the flexible display screen Between 1.
  • the first electromagnet 4 and the second electromagnet 5 may be provided between the second support portion 62 and the flexible display screen 1.

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Abstract

本申请提供了一种柔性显示装置，涉及显示技术领域。该柔性显示装置可以包括：柔性显示屏，包括弯折区；贴合弯折区设置的支撑组件；设置在支撑组件外围的收缩组件；以及驱动组件，构造为驱动收缩组件在沿靠近柔性显示屏的方向移动和沿背离柔性显示屏的方向移动之间切换。本发明实施例通过在柔性显示屏的弯折区设置支撑组件和收缩组件，从而使得当柔性显示屏处于平展状态时，弯折区可以由支撑组件和收缩组件共同支撑，当柔性显示屏处于折叠状态时，弯折区可以继续由支撑组件支撑，而收缩组件则向远离柔性显示屏的方向移动，从而空出了柔性显示屏的收缩空间，进而有效避免了弯折区由于所受拉力超过拉力承受极限而导致的机械性断裂。

Description

柔性显示装置 技术领域
本申请涉及显示技术领域，尤其涉及一种柔性显示装置。
发明背景
随着柔性显示技术的发展，柔性显示装置越来越受到市场的青睐。但是，对于目前的柔性显示装置来说，柔性显示屏在折叠时容易出现屏体内部结构机械性断裂，从而导致屏体损坏。
因此，如何避免柔性显示屏在折叠时发生损坏成为亟待解决的问题。
发明内容
有鉴于此，本申请实施例致力于提供一种柔性显示装置，以解决现有技术中柔性显示屏在折叠时会发生损坏的问题。
本申请一方面提供了一种柔性显示装置，包括：柔性显示屏，包括弯折区；贴合弯折区设置的支撑组件；设置在支撑组件外围的收缩组件；以及驱动组件，构造为驱动收缩组件在沿靠近柔性显示屏的方向移动和沿背离柔性显示屏的方向移动之间切换。
在本申请的一个实施例中，支撑组件包括至少一个支撑磁铁，收缩组件包括吸附在至少一个支撑磁铁外围的至少一个收缩磁铁。
在本申请的一个实施例中，至少一个支撑磁铁和至少一个收缩磁铁并行排列且均为圆柱形。
在本申请的一个实施例中，驱动组件包括设置在弯折区边缘的至少一个第一电磁铁和至少一个第二电磁铁；其中，收缩磁铁在第一电磁铁的第一吸引力的作用下沿靠近柔性显示屏的方向移动，收缩磁铁在第二电磁铁的第二吸引力的作用下沿背离柔性显示屏的方向移动。
在本申请的一个实施例中，驱动组件进一步包括设置在第一电磁铁上的第一压力传感器和控制器，其中，第一电磁铁、第二电磁铁和第一压力传感器均与控制器电连接，控制器配置为：接收第一压力传感器发送的第一压力信号，其中第一压力信号用于指示收缩磁铁对第一电磁铁的压力在逐渐增大；根据第一压力信号逐渐降低第一吸引力；以及根据第一压力信号逐渐增大第二吸引力。
在本申请的一个实施例中，驱动组件进一步包括设置在第二电磁铁上且与控制器电连接的第二压力传感器，其中，控制器进一步配置为：接收第二压力传感 器发送的第二压力信号，其中第二压力信号用于指示收缩磁铁对第二电磁铁的压力在逐渐减小；根据第二压力信号逐渐增大第一吸引力；以及根据第二压力信号逐渐降低第二吸引力。
在本申请的一个实施例中，至少一个支撑磁铁对收缩磁铁的第三吸引力大于第二吸引力的最大值，和/或，第一吸引力的最大值。
在本申请的一个实施例中，第二电磁铁的重心到柔性显示屏的距离大于第一电磁铁的重心到柔性显示屏的距离。
在本申请的一个实施例中，至少一个支撑磁铁中的一个固定在柔性显示屏上。
在本申请的一个实施例中，柔性显示屏进一步包括位于弯折区相对的两侧的第一平展区和第二平展区，柔性显示装置进一步包括支撑第一平展区的第一支撑部和支撑第二平展区的第二支撑部，其中，第一支撑部和第二支撑部通过各自底面的相互接触来限制弯折区的弯折。
在本申请的一个实施例中，至少第一电磁铁和至少一个第二电磁铁设置在第一支撑部和柔性显示屏之间，和/或，第二支撑部和柔性显示屏之间。
在本申请的一个实施例中，所述收缩组件包括两个所述收缩磁铁，分别位于并行排列的所述至少一个支撑磁铁的两端。
在本申请的一个实施例中，所述至少支撑磁铁中位于中间的一个所述支撑磁铁固定在所述柔性显示屏上。
在本申请的一个实施例中，当所述柔性显示屏进行对折时，所述第一支撑部和所述第二支撑部相对接触的表面均为平面。
在本申请的一个实施例中，所述柔性显示屏的对称轴设置在所述弯折区，所述弯折区照所述对称轴呈轴对称。
本申请实施例通过在柔性显示屏的弯折区设置支撑组件和收缩组件，从而使得当柔性显示屏处于平展状态时，弯折区可以由支撑组件和收缩组件共同支撑，当柔性显示屏处于折叠状态时，弯折区可以继续由支撑组件支撑而收缩组件则向远离柔性显示屏的方向移动，从而空出了柔性显示屏的收缩空间，进而有效避免了弯折区由于所受拉力超过拉力承受极限而导致的机械性断裂，有效避免了柔性显示屏的损坏。
附图简要说明
图1是根据本申请一个实施例的柔性显示装置在折叠状态下的局部示意性结构图。
图2是根据本申请一个实施例的柔性显示装置在平铺状态下的局部示意性结构图。
图3是根据本申请一个实施例的控制器配置的流程示意图。
图4是根据本申请另一个实施例的控制器配置的流程示意图。
图5是根据本申请一个实施例的柔性显示装置在折叠状态下的示意性结构图。
图6是根据本申请一个实施例的柔性显示装置在平铺状态下的示意性结构图。
实施本申请的方式
下面将结合本申请实施例中的附图，对本申请实施例中的技术方案进行清楚、完整地描述，显然，所描述的实施例仅是本申请一部分实施例，而不是全部的实施例。基于本申请中的实施例，本领域普通技术人员在没有做出创造性劳动前提下所获得的所有其他实施例，都属于本申请保护的范围。
在可能的情况下，附图中的各个部分提到的相同或相似的部分将采用相同的附图标记。
正如背景技术所述，柔性显示屏在折叠时容易发生损坏，从而影响柔性显示装置的使用寿命。发明人研究发现，出现这种问题的原因在于，为了使柔性显示屏能够在平展的状态下显示，柔性显示屏的非显示一侧通常设置有具有一定硬度的构件，用来支撑柔性显示屏。就这样，在折叠柔性显示屏的同时，也会对该构件进行折叠。由于构件硬度较高，不易发生弹性形变，因此在折叠状态下，柔性显示屏的弯折区将处于被拉的状态，且随着折叠程度的增大，柔性显示屏的弯折区所受的拉力也会逐渐增大。当该拉力超过柔性显示屏所能承受的拉力极限时，柔性显示屏将会发生机械性断裂，从而导致屏体损坏。
为了解决屏体损坏的问题，发明人研究得出，若是在折叠状态下，柔性显示屏的弯折区所受到的拉力能够小于柔性显示屏所能承受的拉力极限，柔性显示屏将不易发生机械性断裂，进而有效避免了柔性显示屏在折叠时容易发生损坏。
图1是根据本申请一个实施例的柔性显示装置在折叠状态下的局部示意性结构图。
基于此，本申请提供了一种柔性显示装置，如图1所示，该柔性显示装置包括：柔性显示屏1，包括弯折区11；贴合弯折区11设置的支撑组件01；设置在支撑组件01外围的收缩组件02；以及驱动组件03，构造为驱动收缩组件02在沿靠近柔性显示屏1的方向移动和沿背离柔性显示屏1的方向移动之间切换。
具体地，柔性显示屏1在折叠时，柔性显示屏1上发生弯折变形的区域可以称为弯折区11。支撑组件01可以用于支撑柔性显示装置的弯折区11，且无论在平铺状态还是折叠状态，支撑组件01均可以与弯折区11相互贴合。在平铺状态下，收缩组件02可以与支撑组件01共同支撑弯折区11。在折叠柔性显示屏1时，收缩组件02可以沿背离柔性显示屏1的方向移动，从而消除了对弯折区11的支 撑作用，空出了柔性显示屏1的收缩空间，进而减小了柔性显示屏1所受的拉力，避免了柔性显示屏1的损坏。当柔性显示屏1由折叠状态转变为平铺状态时，收缩组件02又可以沿靠近柔性显示屏1的方向移动，从而恢复对弯折区11的支撑作用。具体地，收缩组件02可以在驱动组件03的驱动作用下完成在沿靠近柔性显示屏1的方向移动和沿背离柔性显示屏1的方向移动之间切换。
在这里，为了使支撑组件01可以在任何时候都贴合弯折区11，支撑组件01可以有由相互吸附的磁铁构成，也可以是由多个链节首尾相连而构成的链状结构。当支撑组件01包括磁铁时，相邻的两个磁铁中，一个磁铁可以围绕另一个磁铁转动。此时，收缩组件02也可以由磁铁构成。
当支撑组件01由多个链节首尾相连而构成时，相邻的两个链节中，一个链节可以围绕另一个链节转动。此时，收缩组件02也可以由链节构成。
本申请实施例通过在柔性显示屏1的弯折区11设置支撑组件01和收缩组件02，从而使得当柔性显示屏1处于平展状态时，弯折区11可以由支撑组件01和收缩组件02共同支撑，当柔性显示屏1处于折叠状态时，弯折区11可以继续由支撑组件01支撑，而收缩组件02则向远离柔性显示屏1的方向移动，从而空出了柔性显示屏1的收缩空间，进而有效避免了弯折区11由于所受拉力超过拉力承受极限而导致的机械性断裂，有效避免了柔性显示屏1的损坏。
为了清楚描述，下面以支撑组件01和收缩组件02由磁铁构成为例进行说明。
在本申请的一个实施例中，如图1所示，该柔性显示装置可以包括：柔性显示屏1，包括弯折区11；支撑弯折区11的至少一个支撑磁铁3；以及至少一个收缩磁铁2；其中，收缩磁铁2在沿靠近柔性显示屏1的方向移动和沿背离柔性显示屏1的方向移动之间切换。在这里，收缩磁铁2沿靠近柔性显示屏1的方向移动，以便支撑弯折区11；收缩磁铁2沿背离柔性显示屏1的方向移动，以便空出柔性显示屏1的收缩空间。
在柔性显示屏1的非显示一侧，即背离呈现显示内容的一侧，对应该弯折区11的位置设置有用于支撑该弯折区11的支撑磁铁3。在这里，支撑磁铁3的数量可以是一个，也可以是多个，这里对于支撑磁铁3的数量不做限定。类似地，收缩磁铁2的数量可以是一个，也可以是多个。
当柔性显示屏1处于平铺状态时，弯折区11也处于平展的状态，此时弯折区11由支撑磁铁3和收缩磁铁2共同支撑。当柔性显示屏1由平铺状态向折叠状态转变时，即折叠柔性显示装置时，弯折区11将逐渐转变为弯折状态，在这个过程中，弯折区11继续由支撑磁铁3支撑，但收缩磁铁2则逐渐沿背离该柔性显示屏1的方向移动。在折叠柔性显示屏1的过程中，弯折区11需要被拉长，然而弯折区11的拉长需要增大柔性显示屏1所受的拉力。因此，当支撑弯折区11的磁铁的数量减少时，将空出柔性显示屏1的收缩空间，从而有效避免了多个磁铁对弯 折区11的强制支撑，进而有效降低了弯折区11所受的拉力。在这里，强制支撑产生的原因是由于支撑弯折区11的多个磁铁在折叠的过程中无法压缩，会强制执行支撑作用，从而将柔性显示屏1拉长，进而增大柔性显示屏1在弯折区11所受的拉力。在折叠的过程中，柔性显示屏1的弯折区11所承受的拉力最大，因此，当弯折区11所受的拉力减小时，柔性显示屏1发生机械性断裂的几率将大大降低。
当柔性显示屏1由折叠状态向平铺状态转变时，即平铺柔性显示装置时，弯折区11将逐渐转变为平展状态，在这个过程中，弯折区11继续由支撑磁铁3支撑，但弯折区11上将出现无磁铁支撑的区域，为了避免弯折区11在处于平展状态时存在无磁铁支撑而存在褶皱的现象，收缩磁铁2则逐渐向靠近该柔性显示屏1的方向移动，从而实现对弯折区11的继续支撑。
本申请实施例通过在柔性显示屏1的弯折区11设置支撑磁铁3和收缩磁铁2，从而使得当柔性显示屏1处于平展状态时，弯折区11可以由支撑磁铁3和收缩磁铁2共同支撑，当柔性显示屏1处于折叠状态时，弯折区11可以继续由支撑磁铁3支撑，而收缩磁铁2则向远离柔性显示屏1的方向移动，进而有效避免了弯折区11由于所受拉力超过拉力承受极限而导致的机械性断裂，有效避免了柔性显示屏1的损坏。
图2是根据本申请一个实施例的柔性显示装置在平铺状态下的局部示意性结构图。
在本申请的一个实施例中，如图2所示，柔性显示装置可以进一步包括设置在弯折区11边缘的至少一个第一电磁铁4和至少一个第二电磁铁5；其中，收缩磁铁2在第一电磁铁4的第一吸引力的作用下沿靠近柔性显示屏1的方向移动，收缩磁铁2在第二电磁铁5的第二吸引力的作用下沿背离柔性显示屏1的方向移动。
具体地，收缩磁铁2在沿靠近柔性显示屏1的方向移动和沿背离柔性显示屏1的方向移动之间切换可以由第一电磁铁4和第二电磁铁5控制。在这里，第一吸引力和第二吸引力并不是固定不变的，而是可以随着第一电磁铁4和第二电磁铁5的磁场强度的改变而改变，从而使得收缩磁铁2可以在第一吸引力和第二吸引力的作用下，完成在沿靠近柔性显示屏1的方向移动和沿背离柔性显示屏1的方向移动之间切换。
此外，为了避免第一电磁铁4和第二电磁铁5对支撑磁铁3的影响，即为了使第一电磁铁4和第二电磁铁5与支撑磁铁3之间的相互吸引力可以最小化，又为了使第一电磁铁4和第二电磁铁5与收缩磁铁2之间的相互吸引力可以最大化，第一电磁铁4和第二电磁铁5可以优选设置在弯折区11的边缘。
应当理解，在这里，第一电磁铁4和第二电磁铁5的设置位置可以属于弯折区11，也可以不属于弯折区11，这里对于第一电磁铁4和第二电磁铁5的设置位 置是否属于弯折区11不做具体限定。
在本申请的一个实施例中，如图2所示，至少一个收缩磁铁2可以吸附在至少一个支撑磁铁3的外围。
具体地，由于第一电磁铁4和第二电磁铁5设置在弯折区11的边缘，因此，为了使第一电磁铁4和第二电磁铁5与收缩磁铁2之间的相互吸引力可以最大化，至少一个收缩磁铁2可以吸附在至少一个支撑磁铁3的外围，以便可以缩短收缩磁铁2与第一电磁铁4和第二电磁铁5之间的距离。例如，如图2所示，收缩磁铁2的数量可以是两个，分别位于并行排列的支撑磁铁3的两端。
图3是根据本申请一个实施例的控制器300配置的流程示意图。
在本申请的一个实施例中，如图2所示，显示装置可以进一步包括设置在第一电磁铁4上的第一压力传感器7和控制器300，其中，第一电磁铁4、第二电磁铁5和第一压力传感器7均与控制器300电连接。如图3所示，控制器300可以配置为：
步骤310：接收第一压力传感器7发送的第一压力信号，其中第一压力信号用于指示收缩磁铁2对第一电磁铁4的压力在逐渐增大。
具体地，第一压力传感器7可以设置在第一电磁铁4朝向收缩磁铁2的表面上，以便第一压力传感器7可以感应收缩磁铁2对第一电磁铁4的压力。当收缩磁铁2支撑弯折区11时，收缩磁铁2可以吸附在第一电磁铁4上。当折叠柔性显示屏1时，由于支撑弯折区11的多个磁铁的相互挤压，将导致收缩磁铁2对第一电磁铁4的压力逐渐增大。在这里，逐渐增大的压力信息可以构成第一压力信号，并由第一压力传感器7发送给控制器300，以便控制器300可以知晓柔性显示屏1正在由平铺状态向折叠状态转变。
步骤320：根据第一压力信号逐渐降低第一吸引力。
具体地，第一吸引力为第一电磁铁4对收缩磁铁2的吸引力，第一吸引力的大小可以受第一电磁铁4的磁场强度控制，而第一电磁铁4的磁场强度可以由流经第一电磁铁4的电流控制，而流经第一电磁铁4的电流可以由控制器300控制。控制器300控制流经第一电磁铁4的电流逐渐降低，从而使第一吸引力逐渐降低。
在这里，为了便于控制器300的控制，流经第一电磁铁4的电流可以按照第一预设频率逐渐降低。
步骤330：根据第一压力信号逐渐增大第二吸引力。
具体地，第二吸引力为第二电磁铁5对收缩磁铁2的吸引力，第二吸引力的大小可以受第二电磁铁5的磁场强度控制，而第二电磁铁5的磁场强度可以由流经第二电磁铁5的电流控制，而流经第二电磁铁5的电流也可以由控制器300控制。控制器300控制流经第二电磁铁5的电流逐渐增大，从而使第二吸引力逐渐增大。
当控制器300控制流经第一电磁铁4的电流按照第一预设频率逐渐降低时，也可以控制流经第二电磁铁5的电流按照第二预设频率逐渐增大。当第二吸引力足够大，且在折叠柔性显示屏1时，支撑弯折区11的多个磁铁之间的挤压力足够大时，收缩磁铁2将在第二吸引力和该挤压力的共同作用下自动沿背离柔性显示屏1的方向移动，从而实现了对弯折区11所受拉力的降低。
应当理解，在这里，第一预设频率和第二预设频率可以相同的，也可以不同的，这里对此不做限定。
图4是根据本申请另一个实施例的控制器300配置的流程示意图。
在本申请的一个实施例中，如图2所示，显示装置可以进一步包括设置在第二电磁铁5上且与控制器300电连接的第二压力传感器8，其中，如图4所示，控制器300可以进一步配置为：
步骤410：接收第二压力传感器8发送的第二压力信号，其中第二压力信号用于指示收缩磁铁2对第二电磁铁5的压力在逐渐减小。
具体地，收缩磁铁2在沿背离柔性显示屏1的方向移动之后，将吸附在第二电磁铁5上。当柔性显示屏1由折叠状态向平铺状态转变时，由于至少一个支撑磁铁3对收缩磁铁2的第三吸引力大于第二吸引力的最大值，且在有多个支撑磁铁3的情况下，多个并排的支撑磁铁3也将随着弯折区11状态的改变而转变为平展并排状态，在第三吸引力以及多个支撑磁铁3状态改变的共同作用下，为了趋于受力平衡，收缩磁铁2对第二电磁铁5的压力将逐渐减小。在这里，逐渐减小的压力信息构成第二压力信号，并由第二压力传感器8发送给控制器300，以便控制器300可以知晓柔性显示屏1正在由折叠状态向平铺状态转变。
为了使收缩磁铁2能够恢复至支撑弯折区11，在本申请实施例中，至少一个支撑磁铁3对收缩磁铁2的第三吸引力大于第二吸引力的最大值，也大于第一吸引力的最大值。
步骤420：根据第二压力信号逐渐增大第一吸引力。
具体地，控制器300也可以控制流经第一电磁铁4的电流逐渐增大，从而使第一吸引力逐渐增大。
在这里，为了便于控制器300的控制，流经第一电磁铁4的电流可以按照第三预设频率逐渐增大。
步骤430：根据第二压力信号逐渐降低第二吸引力。
具体地，控制器300也可以控制流经第二电磁铁5的电流逐渐降低，从而使第二吸引力逐渐降低。
当控制器300控制流经第一电磁铁4的电流按照第三预设频率逐渐增大时，也可以控制流经第二电磁铁5的电流按照第四预设频率逐渐降低。
在平铺柔性显示屏1的过程中，收缩磁铁2将在第一吸引力和第三吸引力的 协同作用下向柔性显示屏1靠近，继续实现对弯折区11的支撑。
应当理解，在这里，第三预设频率和第四预设频率可以相同的，也可以不同的。除此之外，第一预设频率和第三预设频率或第四预设频率，可以是相同的，也可以是不同的。类似地，第二预设频率也是如此。
在本申请的一个实施例中，为了使收缩磁铁2可以沿背离柔性显示屏1的方向移动，第二电磁铁5的重心到柔性显示屏1的距离要大于第一电磁铁4的重心到柔性显示屏1的距离。
具体地，如图2所示，第一电磁铁4可以固定在柔性显示屏1上，相应地，第二电磁铁5可以固定在第一电磁铁4上。除此之外，第一电磁铁4和第二电磁铁5也可以均固定在柔性显示屏1上，只是第二电磁铁5的重心要高于第一电磁铁4的重心，进而实现收缩磁铁2可以在第二电磁铁5的吸引力的作用下沿背离柔性显示屏1的方向移动。在这里，每个电磁铁的重心可以是指该电磁铁所受的各种外力的受力中心。
在本申请的一个实施例中，为了使柔性显示屏1的弯折区11无论是处在平展状态还是处在弯折状态均不存在褶皱区，至少一个支撑磁铁3可以优选为并行排列。为了使得该并行排列状态能够得到保持，至少一个支撑磁铁3中的一个可以固定在柔性显示屏1上。此外，为了保证受力均匀，该被固定的支撑磁铁3可以优选位于中间的一个，例如，如图2中标注为A的那一个。应当理解，对于支撑磁铁3的数量为双数的情况，可以选择中间的两个中的任意一个。
在本申请的一个实施例中，为了便于在折叠柔性显示屏1的过程中，弯折区11所受的拉伸形变最小，即所受的拉力最小，支撑磁铁3需要能够沿着相邻的支撑磁铁3的表面进行移动，为此，至少一个支撑磁铁3可以优选为圆柱形。类似地，至少一个收缩磁铁2也可以优选均为圆柱形。
图5是根据本申请一个实施例的柔性显示装置在折叠状态下的示意性结构图，其中，虚线所圈出的区域可以如图2所示。图6是根据本申请一个实施例的柔性显示装置在平铺状态下的示意性结构图，其中，虚线所圈出的区域可以如图1所示。
在本申请的一个实施例中，如图5和图6所示，柔性显示屏1可以进一步包括位于弯折区11相对的两侧的第一平展区121和第二平展区122，柔性显示装置可以进一步包括支撑第一平展区121的第一支撑部61和支撑第二平展区122的第二支撑部62，其中，第一支撑部61和第二支撑部62可以通过各自底面的相互接触来限制弯折区11的弯折。
具体地，为了方便对折，柔性显示屏1的对称轴可以位于弯折区11。为了便于弯折，弯折区11也可以按照该对称轴呈轴对称。相应地，第一平展区121和第二平展区122可以关于弯折区11对称。当柔性显示屏1进行对折时，第一支撑部 61和第二支撑部62可以相对接触，且接触的表面可以均为平面，该表面可以称为底面，从而使得第一支撑部61和第二支撑部62可以限制弯折区11的进一步弯折。此外，若第一支撑部61的底面和第二支撑部62的底面可以完全接触时，柔性显示屏1的弯折区11的弯折状态可以呈半圆状，进而满足用户的审美需求。
应当理解，第一平展区121和第二平展区122也可以是非对称设置的，这里对此不做限定。当第一平展区121和第二平展区122非对称设置时，第一支撑部61和第二支撑部62各自底面的相互接触也可以限制弯折区11的进一步弯折。
在本申请的一个实施例中，如图2所示，弯折区11与第一平展区121和第二平展区122可以均为相邻的关系，为了使得柔性显示屏1的每一个区域都可以得到支撑，又为了能够实现第一电磁铁4和第二电磁铁5对收缩磁铁2的有效控制，第一电磁铁4和第二电磁铁5可以设置在第一支撑部61和柔性显示屏1之间。此外，第一电磁铁4和第二电磁铁5也可以设置在第二支撑部62和柔性显示屏1之间。
以上所述仅为本申请的较佳实施例而已，并不用以限制本申请，凡在本申请的精神和原则之内，所作的任何修改、等同替换等，均应包含在本申请的保护范围之内。

Claims (15)

  1. 一种柔性显示装置，其中，包括：
    柔性显示屏，包括弯折区；
    贴合所述弯折区设置的支撑组件；
    设置在所述支撑组件外围的收缩组件；以及
    驱动组件，驱动所述收缩组件在沿靠近所述柔性显示屏的方向移动和沿背离所述柔性显示屏的方向移动之间切换。
  2. 根据权利要求1所述的柔性显示装置，其中，所述支撑组件包括至少一个支撑磁铁，所述收缩组件包括吸附在所述至少一个支撑磁铁外围的至少一个收缩磁铁。
  3. 根据权利要求2所述的柔性显示装置，其中，所述至少一个支撑磁铁和所述至少一个收缩磁铁并行排列且均为圆柱形。
  4. 根据权利要求2所述的柔性显示装置，其中，所述驱动组件包括设置在所述弯折区边缘的至少一个第一电磁铁和至少一个第二电磁铁；
    其中，所述收缩磁铁在所述第一电磁铁的第一吸引力的作用下沿靠近所述柔性显示屏的方向移动，所述收缩磁铁在所述第二电磁铁的第二吸引力的作用下沿背离所述柔性显示屏的方向移动。
  5. 根据权利要求2所述的柔性显示装置，其中，所述收缩组件包括两个所述收缩磁铁，分别位于并行排列的所述至少一个支撑磁铁的两端。
  6. 根据权利要求2所述的柔性显示装置，其中，所述驱动组件进一步包括设置在所述第一电磁铁上的第一压力传感器和控制器，其中，所述第一电磁铁、所述第二电磁铁和所述第一压力传感器均与所述控制器电连接，所述控制器配置为：
    接收所述第一压力传感器发送的第一压力信号，其中所述第一压力信号用于指示所述收缩磁铁对所述第一电磁铁的压力在逐渐增大；
    根据所述第一压力信号逐渐降低所述第一吸引力；以及
    根据所述第一压力信号逐渐增大所述第二吸引力。
  7. 根据权利要求6所述的柔性显示装置，其中，所述驱动组件进一步包括设置在所述第二电磁铁上且与所述控制器电连接的第二压力传感器，其中，所述控制器进一步配置为：
    接收所述第二压力传感器发送的第二压力信号，其中所述第二压力信号用于指示所述收缩磁铁对所述第二电磁铁的压力在逐渐减小；
    根据所述第二压力信号逐渐增大所述第一吸引力；以及
    根据所述第二压力信号逐渐降低所述第二吸引力。
  8. 根据权利要求4所述的柔性显示装置，其中，所述至少一个支撑磁铁对所述收缩磁铁的第三吸引力大于所述第二吸引力的最大值，和/或，所述第一吸引力的最大值。
  9. 根据权利要求4所述的柔性显示装置，其中，所述第二电磁铁的重心到所述柔性显示屏的距离大于所述第一电磁铁的重心到所述柔性显示屏的距离。
  10. 根据权利要求2至9中任一项所述的柔性显示装置，其中，所述至少一个支撑磁铁中的一个固定在所述柔性显示屏上。
  11. 根据权利要求10所述的柔性显示装置，其中，所述至少一个支撑磁铁中位于中间的一个所述支撑磁铁固定在所述柔性显示屏上。
  12. 根据权利要求4所述的柔性显示装置，其中，所述柔性显示屏进一步包括位于所述弯折区相对的两侧的第一平展区和第二平展区，所述柔性显示装置进一步包括支撑所述第一平展区的第一支撑部和支撑所述第二平展区的第二支撑部，其中，所述第一支撑部和所述第二支撑部通过各自底面的相互接触来限制所述弯折区的弯折。
  13. 根据权利要求12所述的柔性显示装置，其中，当所述柔性显示屏进行对折时，所述第一支撑部和所述第二支撑部相对接触的表面均为平面。
  14. 根据权利要求12所述的柔性显示装置，其中，所述至少第一电磁铁和所述至少一个第二电磁铁设置在所述第一支撑部和所述柔性显示屏之间，和/或，所述第二支撑部和所述柔性显示屏之间。
  15. 根据权利要求1所述的柔性显示装置，其中，所述柔性显示屏的对称轴设置在所述弯折区，所述弯折区依照所述对称轴呈轴对称。
PCT/CN2019/095733 2019-01-07 2019-07-12 柔性显示装置 WO2020143202A1 (zh)

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