WO2019228256A1 - 柔性显示装置 - Google Patents

柔性显示装置 Download PDF

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Publication number
WO2019228256A1
WO2019228256A1 PCT/CN2019/088271 CN2019088271W WO2019228256A1 WO 2019228256 A1 WO2019228256 A1 WO 2019228256A1 CN 2019088271 W CN2019088271 W CN 2019088271W WO 2019228256 A1 WO2019228256 A1 WO 2019228256A1
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WO
WIPO (PCT)
Prior art keywords
flexible display
linear conductor
display device
display panel
roll
Prior art date
Application number
PCT/CN2019/088271
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English (en)
French (fr)
Inventor
董晓楠
黄中浩
赵永亮
Original Assignee
京东方科技集团股份有限公司
重庆京东方光电科技有限公司
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
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Publication date
Application filed by 京东方科技集团股份有限公司, 重庆京东方光电科技有限公司 filed Critical 京东方科技集团股份有限公司
Priority to US16/641,391 priority Critical patent/US11393617B2/en
Publication of WO2019228256A1 publication Critical patent/WO2019228256A1/zh

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    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F7/00—Magnets
    • H01F7/06—Electromagnets; Actuators including electromagnets
    • H01F7/066—Electromagnets with movable winding
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F7/00—Magnets
    • H01F7/06—Electromagnets; Actuators including electromagnets
    • 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
    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
    • H05K5/00—Casings, cabinets or drawers for electric apparatus
    • H05K5/0017—Casings, cabinets or drawers for electric apparatus with operator interface units

Definitions

  • the present disclosure relates to the field of display technology, and in particular, to a flexible display device.
  • the flexible display Due to the flexibility of the flexible display, it can be flexed under force when displaying or not displaying, and maintains good display performance.
  • the flexible display panel in the flexible display in the related art is difficult to achieve autonomous collection and deployment, and because When the rolled flexible display panel is unfolded and displayed again, it tends to curl again, thereby making the flexible display panel display unevenness, and the flatness cannot be stably maintained within a given display time after being expanded, so the display The effect is poor.
  • a flexible display device including a flexible display panel, a roll, a substantially U-shaped guide rail, and a magnetic field generating component.
  • the surface of the reel is provided with a slit opening and an inner shaft is provided with a rotating shaft.
  • the U-shaped guide rail has an open side and a closed end opposite to each other, and the closed end is disposed adjacent to the rotating shaft.
  • a linear conductor is configured to bridge the open side of the U-shaped guide rail to form a closed loop with the U-shaped guide rail.
  • the magnetic field generating means is configured to provide a magnetic field to the linear conductor.
  • a first side of the flexible display panel is connected to the rotating shaft of the roll through the slit opening, and a second side of the flexible display panel opposite to the first side is in a linear shape. Conductor connection.
  • the flexible display device is configured to, when power is applied to the linear conductor, can force the linear conductor so that the flexible display panel is in any one of the following states Species: unfolded in a direction away from the reel; retracted in the direction of the reel; and in a tensioned and stationary state.
  • the flexible display panel is configured such that a second side thereof bypasses the linear conductor and is connected to the linear conductor.
  • the magnetic field generating member includes a conductive coil provided at a peripheral edge of the linear conductor, and the flexible display device is configured to enable the straight line when the conductive coil is powered on.
  • the shaped conductor is stressed, thereby causing the flexible display panel to be in any of the following states: unfolded in a direction away from the roll; retracted in a direction toward the roll; and in a tensioned and stationary state.
  • the conductive coil is disposed at a peripheral edge of the linear conductor away from the linear conductor.
  • the conductive coil is disposed at a peripheral edge of the linear conductor adjacent to the linear conductor.
  • the flexible display device further includes a flexible substrate disposed under the linear conductor, a first side of the flexible substrate is fixed to the rotating shaft, and a second side of the flexible substrate opposite to the first side An edge bypasses the linear conductor and is fixed to the linear conductor.
  • the magnetic field generating member includes a conductive coil provided at a peripheral edge of the linear conductor, and the flexible display device is configured to enable the straight line when the conductive coil is powered on.
  • the shaped conductor is stressed, thereby causing the flexible display panel to be in any of the following states: unfolded in a direction away from the roll; retracted in a direction toward the roll; and in a tensioned and stationary state.
  • the flexible display device further includes a driving member connected to the rotating shaft for driving the rotating shaft to move.
  • the driving component is an electric motor.
  • the flexible display device further includes a power source component configured to supply power to at least one of the magnetic field generating component, the U-shaped guide rail, and the electric motor.
  • the U-shaped guide rail is a flexible U-shaped guide rail whose closed end can be fixed to a rotating shaft.
  • the flexible U-shaped guide rail can be contracted into a roll together with the flexible display panel.
  • the material of the U-shaped guide rail is, for example, metal.
  • the reel is a light-shielding reel.
  • a length direction of the slit opening is parallel to an axial direction of the rotating shaft, and an opening direction thereof is aligned with the flexible display panel.
  • FIG. 1 is a schematic plan view of a flexible display device provided by some exemplary embodiments of the present disclosure
  • FIG. 2 is a schematic structural side view of a flexible display device provided by some exemplary embodiments of the present disclosure
  • FIG. 3 is a schematic structural side view of a flexible display device provided by some other exemplary embodiments of the present disclosure.
  • FIG. 4 is a schematic structural side view of a first flexible display device provided with a conductive coil according to some exemplary embodiments of the present disclosure
  • FIG. 5 is a schematic structural side view of a second flexible display device provided with a conductive coil according to some exemplary embodiments of the present disclosure
  • FIG. 6 is a schematic structural side view of a third flexible display device provided with a conductive coil according to some exemplary embodiments of the present disclosure
  • FIG. 7 is a schematic structural side view of a flexible display device provided with a flexible substrate according to some exemplary embodiments of the present disclosure
  • FIG. 8 is an enlarged schematic diagram of the dotted frame in FIG. 7.
  • Some exemplary embodiments of the present disclosure provide a flexible display device.
  • a flexible display device provided by some exemplary embodiments of the present disclosure includes a flexible display panel 6 and a reel 1 with a rotating shaft 2.
  • the surface of the reel 1 is provided with the rotating shaft 2.
  • the slit openings (not shown in FIG. 1) parallel to the axial direction, and the first side of the flexible display panel 6 is connected to the rotating shaft 2 of the roll 1 through the slit opening.
  • the flexible display device further includes a U-shaped guide rail 3, a linear conductor 4 connected across the opening side of the U-shaped guide rail 3, and a magnetic field generating component (not shown in Figs. 1-2) for supplying a magnetic field to the linear conductor 4.
  • the closed end of the U-shaped guide rail 3 is fixed to the rotating shaft 2
  • the linear conductor 4 is also connected to the second side of the flexible display panel 6 opposite to the first side, and the linear conductor 4 is enclosed by the U-shaped guide rail 3.
  • a closed loop is also connected to the closed end of the U-shaped guide rail 3 and the linear conductor 4 is enclosed by the U-shaped guide rail 3.
  • the flexible display device includes a magnetic field generating component and a closed loop composed of a linear conductor and a U-shaped guide rail, and by connecting the second side of the flexible display panel with the linear conductor, The opposite first side is connected to the rotating shaft. Since the powered linear conductor will be subjected to ampere force under the magnetic field, the linear conductor will move along the U-shaped guide under the action of ampere force, which can drive the flexible display. The panel moves. When the flexible display panel needs to be displayed, the flexible display panel can be automatically exhibited by the roll. When the display is not needed, the flexible display panel can be automatically collected into the roll by driving the reel of the reel. The flexible display panel can realize autonomous expansion and collection functions.
  • the flexible display panel when the flexible display panel is expanded, the rolled flexible display panel always tends to be curled again when it is unfolded and displayed, so that the flexible display panel has an uneven state when displayed, resulting in flexible display. There is a problem that the display effect is poor when the panel is stably displayed.
  • the flexible display device of some exemplary embodiments of the present disclosure when the flexible display panel needs to be stably displayed, since a magnetic field generating component is provided, the linear conductor and the U The closed circuit composed of the type guide rail and the rotating shaft can adjust the magnetic induction strength of the magnetic field generating component or the amount of current flowing through the linear conductor and the voltage or current that drives the rotating shaft to balance the force of the flexible display panel.
  • the stable display of the flexible display panel can further avoid the problem that the display effect of the flexible display panel is poor due to the unevenness of the flexible display panel during stable display.
  • the magnetic field generating component may be, for example, a conductive coil that is energized, or a magnetic pole of the same name (for example, the same N pole or the same S pole) disposed under the flexible display panel and the guide rail.
  • the magnetic field generating component is a conductive coil as an example, and the setting positions of the magnetic field generating component in some exemplary embodiments of the present disclosure will be described by specific examples.
  • FIG. 4 is an enlarged structural diagram of the dotted frame in FIG. 3, and the second side of the flexible display panel 6 opposite to the first side bypasses the linear conductor 4. It is connected to the linear conductor 4.
  • the flexible display panel 6 is provided with a conductive coil 7 at a position surrounding the linear conductor 4. According to the magnetic effect of the current, a magnetic field is generated when the conductive coil 7 is powered on, and the linear conductor 4 moves on the U-shaped guide rail 3 under the magnetic field provided by the conductive coil 7.
  • the flexible display panel 6 may include a conductive coil disposed around the linear conductor 4 and located below the linear conductor 4, as shown in FIG.
  • a conductive coil 7 is provided at the upper position, as shown in FIG. 5; or, the conductive coil 7 may be provided at a position surrounding the linear conductor 4 above the linear conductor 4 and below the linear conductor 4. As shown in FIG. 6, the linear conductor 4 is caused to move on the U-shaped guide rail 3 under the magnetic field generated by the conductive coil 7, and then the flexible display panel 6 is driven to be exhibited by the roll 1.
  • the conductive coils 7 are provided on the upper and lower sides of the linear conductor 4, it is necessary to ensure that the winding directions of the two conductive coils 7 are the same to generate a magnetic field in the same direction.
  • the direction of the current flowing through the linear conductor 4 and the current direction of the energized coil 7 can be adjusted to cause the magnetic field generated by the energized coil 7 to turn the linear conductor 4 to the left (that is, toward the flexible display) in FIG. 3.
  • the second side of the panel) so that the flexible display panel 6 can be exhibited by the reel 1; or, by adjusting the direction of the current flowing through the linear conductor 4 and the direction of the current passing through the coil 7, the current is applied.
  • the magnetic field generated by the coil 7 generates an ampere force to the right of the linear conductor 4 (that is, toward the first side of the flexible display panel) in FIG. 3, so that the flexible display panel 6 can be retracted into the roll 1 and accommodated. .
  • the flexible display device by integrating a conductive coil at one end of the flexible display panel, that is, using the conductive coil as a magnetic field generating component, the flexible display device can be enabled when the linear conductor is moved on the U-shaped guide rail.
  • the structure is relatively simple, which can simplify the structural complexity of the flexible display device.
  • FIG. 8 is an enlarged structural diagram of the dotted frame in FIG. 7.
  • the flexible display device further includes a flexible substrate 5 disposed under the linear conductor 4.
  • the first side is fixed to the rotating shaft 2, and the opposite second side goes up around the linear conductor 4 and is fixed to the linear conductor 4.
  • a conductive coil 7 is provided at a position of the flexible substrate 5 around the linear conductor 4. According to the magnetic effect of the current, a magnetic field is generated when the conductive coil 7 is powered on, and the linear conductor 4 moves on the U-shaped guide rail 3 under the magnetic field provided by the conductive coil 7.
  • the conductive coil 7 may be disposed at a position where the flexible substrate 5 surrounds the linear conductor 4, specifically, may be located above or below the linear conductor 4, or the linear conductor 4 may be provided above and below the conductor.
  • the magnetic field generating component may also have other structural forms, as long as it can provide a stable magnetic field for the flexible display panel, which is within the protection scope of the present disclosure.
  • the U-shaped guide is a flexible U-shaped guide.
  • the U-shaped guide rail is a flexible U-shaped guide rail.
  • the U-shaped guide rail can be rolled into the roll with the flexible display panel, which improves the flexibility of the flexible display device during use. Convenience.
  • the material of the specific flexible U-shaped guide rail may be metal, that is, the flexible U-shaped guide rail may be formed by using thin metal wires.
  • the reel is a shading reel.
  • the reel is a light-shielding reel, which can prevent the flexible display panel from affecting the flexible display panel when external light is exposed to the flexible display panel for a long time when the flexible display panel does not need to be displayed and rolled into the reel. Performance.
  • the flexible display device further includes a driving component connected to the rotating shaft 2; when the flexible display device does not need to display, power is applied to the driving component to drive the rotating shaft 2 to move the flexible display panel 6 into the reel 1.
  • the driving component may be an electric motor.
  • the flexible display device further includes a power source component, and the power source component is configured to be capable of supplying power to the magnetic field generating component, the U-shaped guide rail, and the electric motor.
  • the magnitude of the ampere force can be controlled by the above-mentioned control method of the magnitude of the ampere force so that it is larger than the drive shaft (such as an electric motor) applied to the shaft of the reel. (The direction is opposite to the ampere force), so that the ampere force applied to the linear conductor will drive the flexible display panel in a direction away from the roll.
  • the drive shaft such as an electric motor
  • the flexible display panel When the flexible display panel is unfolded to a desired position, reduce at least one of the magnetic induction strength B and the magnitude of the current I so that the magnitude of the ampere force F and the magnitude of the driving force applied to the rotating shaft of the reel by the driving member Equal, at this time, the flexible display panel is in a force-balanced state and is in a stationary state of motion. Since the driving force applied to the reel's rotating shaft is opposite to the direction of the ampere force, the flexible display panel is in a tensioned state and therefore in a flat state.
  • the flexible display panel When the flexible display panel needs to be retracted for storage in the reel, at least one of the magnitude of the magnetic induction B and the magnitude of the current I is further reduced so that the magnitude of the amperage F is smaller than the driving component applied to the rotation axis of the reel. At this time, the flexible display panel is retracted into the roll under the action of the driving force so as to be in a storage state.
  • the flexible display device includes a magnetic field generating component, and a closed loop composed of a linear conductor and a U-shaped guide rail.
  • the second side is connected to the linear conductor, and the opposite first side is connected to the rotating shaft. Since the powered linear conductor is subjected to ampere force under the magnetic field, the flexible display panel can be driven by the linear conductor to move.
  • the flexible display panel can be automatically exhibited by the reel.
  • the flexible display panel can be automatically collected into the reel through the reel's rotating shaft, which can make the flexible display panel. Achieve autonomous deployment and collection functions.
  • the flexible display device in some implementations of the present disclosure has the following technical effects: When the flexible display panel needs to be stably displayed, since a magnetic field generating component is provided, a linear conductor and The closed loop composed of U-shaped guide rails and the rotating shaft, adjust the magnetic induction strength of the magnetic field generating component or the amount of current flowing through the linear conductor, and the voltage or current when driving the rotating shaft to balance the force of the flexible display panel. In this way, the flexible display panel can be stably displayed, and the problem of poor display effect of the flexible display panel due to the unevenness of the flexible display panel during stable display can also be avoided.
  • the term “substantially” herein such as in “substantially all light” or in “consisting essentially of”.
  • the term “substantially” may also include embodiments having “entirely”, “completely”, “all”, and the like. Therefore, in embodiments, the adjectives are also basically removable.
  • the term “substantially” may also relate to 90% or higher, such as 95% or higher, particularly 99% or higher, even more particularly 99.5% or higher, including 100%.
  • the term “including” also includes embodiments in which the term “including” means “consisting of”.
  • the term “and / or” specifically relates to one or more of the items mentioned before and after "and / or”.
  • the phrase “item 1 and / or item 2" and similar phrases may relate to one or more of items 1 and 2.
  • the term “comprising” may refer to “consisting of” in one embodiment, but may also refer to “comprising at least a limited species and optionally one or more other species in another embodiment" ".
  • the disclosure may be implemented by means of hardware comprising several distinct elements, and by means of a suitably programmed computer.
  • a device claim enumerating several devices several of these devices may be embodied by the same hardware item.
  • the mere fact that certain measures are recited in mutually different dependent claims does not indicate that a combination of these measures cannot be used to advantage.
  • the present disclosure is further applicable to a device including one or more of the characterizing features described in this specification and / or shown in the accompanying drawings.
  • the disclosure further relates to a method or process that includes one or more of the characterizing features described in this specification and / or shown in the accompanying drawings.

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  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Microelectronics & Electronic Packaging (AREA)
  • Devices For Indicating Variable Information By Combining Individual Elements (AREA)
  • General Physics & Mathematics (AREA)
  • Theoretical Computer Science (AREA)

Abstract

一种柔性显示装置，包括：柔性显示面板（6）；卷筒（1）；基本上呈U型的导轨（3）和磁场产生部件。卷筒（1）的表面设置有狭缝开口且内部设置有转轴（2）。U型导轨（3）具有彼此相对的开口侧和封闭端，该封闭端邻近该转轴（2）设置。直线形导体（4）配置成跨接在U型导轨（3）的该开口侧以与该U型导轨（3）形成一闭合回路。磁场产生部件配置成为该直线形导体（4）提供磁场。该柔性显示面板（6）的第一侧边通过该狭缝开口与该卷筒（1）的转轴（2）连接，该柔性显示面板（6）的与该第一侧边相对的第二侧边与该直线形导体（4）连接。

Description

柔性显示装置
相关申请
本申请主张于2018年6月1日提交的中国专利申请号201810558549.0的优先权，其全部内容通过引用结合于此。
技术领域
本公开涉及显示技术领域，尤其涉及一种柔性显示装置。
背景技术
随着显示技术的发展，柔性显示器以其柔性、便携、可挠性、耐冲击性而受到越来越多的青睐。
柔性显示器由于具有柔性，在显示或者不显示时均可以受力弯曲，且保持良好的显示性能，但是，目前相关技术中的柔性显示器中的柔性显示面板难于实现自主性收取和展开，而且，由于卷曲后的柔性显示面板再进行展开显示时，总是趋向于再次卷曲，进而使柔性显示面板显示时存在不平坦的状态，并且展开后在给定显示时间内不能稳定地保持平坦性，因而显示效果较差。
发明内容
有鉴于此，本公开的一些示范性实施例提供一种柔性显示装置，包括柔性显示面板，卷筒，基本上呈U型的导轨和磁场产生部件。卷筒的表面设置有狭缝开口且内部设置有转轴。U型导轨具有彼此相对的开口侧和封闭端，该封闭端邻近所述转轴设置。直线形导体配置成跨接在所述U型导轨的该开口侧以与所述U型导轨形成一闭合回路。磁场产生部件配置成为所述直线形导体提供磁场。所述柔性显示面板的第一侧边通过所述狭缝开口与所述卷筒的所述转轴连接，所述柔性显示面板的与该第一侧边相对的第二侧边与所述直线形导体连接。
根据本公开的一个方面，所述柔性显示装置配置成，当为所述直线形导体加电时，能够使所述直线形导体受力，从而使所述柔性显示面板处于以下状态中的任一种：朝着背离卷筒的方向展开；朝向卷筒的方向缩回；和处于张紧且静止状态。
根据本公开的一个方面，所述柔性显示面板配置成使其第二侧边绕过所述直线形导体并与所述直线形导体连接。
根据本公开的一个方面，所述磁场产生部件包括设置在所述直线形导体的周缘处的导电线圈，所述柔性显示装置配置成，当为所述导电线圈加电时，能够使所述直线形导体受力，从而使所述柔性显示面板处于以下状态中的任一种：朝着背离卷筒的方向展开；朝向卷筒的方向缩回；和处于张紧且静止状态。
根据本公开的一个方面，所述导电线圈设置在所述直线形导体的周缘处的远离所述直线形导体一侧。
根据本公开的一个方面，所述导电线圈设置在所述直线形导体的周缘处的邻近所述直线形导体一侧。所述柔性显示装置还包括设置在所述直线形导体之下的柔性基板，所述柔性基板的第一侧边与所述转轴固定，所述柔性基板的与第一侧边相对的第二侧边绕过所述直线形导体并与该所述直线形导体固定。
根据本公开的一个方面，所述磁场产生部件包括设置在所述直线形导体的周缘处的导电线圈，所述柔性显示装置配置成，当为所述导电线圈加电时，能够使所述直线形导体受力，从而使所述柔性显示面板处于以下状态中的任一种：朝着背离卷筒的方向展开；朝向卷筒的方向缩回；和处于张紧且静止状态。
根据本公开的一个方面，所述柔性显示装置还包括与所述转轴连接的驱动部件，以用于驱动所述转轴运动。
根据本公开的一个方面，所述驱动部件为电动马达。
根据本公开的一个方面，所述柔性显示装置还包括电源部件，所述电源部件配置成为所述磁场产生部件、所述U型导轨、和所述电动马达中的至少一者供电。
根据本公开的一个方面，所述U型导轨为柔性U型导轨，其封闭端可以固定到转轴上，使用中该柔性U型导轨可以连同柔性显示面板一起被收缩到卷筒中。所述U型导轨的材质例如为金属。
根据本公开的一个方面，所述卷筒为遮光卷筒。
根据本公开的一个方面，该狭缝开口的长度方向平行于该转轴的轴向方向，且其开口方向与该柔性显示面板对准。
附图说明
图1为本公开的一些示范性实施例提供的一种柔性显示装置的俯视结构示意图；
图2为本公开的一些示范性实施例提供的一种柔性显示装置的侧视结构示意图；
图3为本公开的另一些示范性实施例提供的一种柔性显示装置的侧视结构示意图；
图4为本公开的一些示范性实施例提供的第一种设置有导电线圈的柔性显示装置的侧视结构示意图；
图5为本公开的一些示范性实施例提供的第二种设置有导电线圈的柔性显示装置的侧视结构示意图；
图6为本公开的一些示范性实施例提供的第三种设置有导电线圈的柔性显示装置的侧视结构示意图；
图7为本公开的一些示范性实施例提供的设置有柔性基板的柔性显示装置的侧视结构示意图；
图8为图7在虚线框处的放大示意图。
具体实施方式
为了使得本公开实施例的目的、技术方案和优点更加清楚，下面将结合本公开实施例的附图，对本公开实施例的技术方案进行清楚、完整地描述。显然，所描述的实施例是本公开的一部分实施例，而不是全部的实施例。基于所描述的本公开的实施例，本领域普通技术人员在无需创造性劳动的前提下所获得的所有其他实施例，都属于本公开保护的范围。
除非另外定义，本公开使用的技术术语或者科学术语应当为本公开所属领域内具有一般技能的人士所理解的通常意义。本公开中使用的“第一”、“第二”以及类似的词语并不表示任何顺序、数量或者重要性，而只是用来区分不同的组成部分。“包括”或者“包含”等类似的词语意指出现该词前面的元件或者物件涵盖出现在该词后面列举的元件或者物件及其等同，而不排除其他元件或者物件。“连接”或者“相连”等类似的词语并非限定于物理的或者机械的连接，而是可以包括电性的连接，不管是直接的还是间接的。“上”、“下”、 “左”、“右”等仅用于表示相对位置关系，当被描述对象的绝对位置改变后，则该相对位置关系也可能相应地改变。
为了保持本公开实施例的以下说明清楚且简明，本公开省略了某些已知功能和已知部件的详细说明。
为了改善相关技术中的柔性显示面板难于实现自主性收取和展开的问题，以及改善柔性显示面板卷曲后再进行展开显示时，柔性显示面板不能长时间保持稳定平展地显示，显示效果较差的问题，本公开的一些示范性实施例提供一种柔性显示装置。
参见图1和图2所示，本公开的一些示范性实施例提供的柔性显示装置，包括柔性显示面板6以及带有转轴2的卷筒1，卷筒1的表面设置有与该转轴2的轴向方向平行的狭缝开口(图1中未示出)，柔性显示面板6的第一侧边通过狭缝开口与卷筒1的转轴2连接。柔性显示装置还包括U型导轨3、跨接在U型导轨3开口一侧的直线形导体4、以及用于为直线形导体4提供磁场的磁场产生部件(图1-2中未示出)，其中，U型导轨3的封闭端与转轴2固定，直线形导体4还与柔性显示面板6的与第一侧边相对的第二侧边连接，直线形导体4与U型导轨3围成一闭合回路。
本公开的一些示范性实施例提供的柔性显示装置，包括磁场产生部件，以及由直线形导体和U型导轨组成的闭合回路，并通过将柔性显示面板的第二侧边与直线形导体连接，其相对的第一侧边与转轴连接，由于加电的直线形导体在磁场作用下会受到安培力，因此直线形导体会在安培力的作用下沿着U形导轨移动，进而可以带动柔性显示面板进行运动，在需要将柔性显示面板显示时，可以实现将柔性显示面板自动由卷筒展出，在不需要显示时，可以通过驱动卷筒的转轴将柔性显示面板自动收取到卷筒内，可以使柔性显示面板实现自主性展开以及收取功能。相比于相关技术的柔性显示面板在展开显示时，由于卷曲后的柔性显示面板再进行展开显示时，总是趋向于再次卷曲，进而使柔性显示面板显示时存在不平坦的状态，致使柔性显示面板稳定显示时存在显示效果较差的问题，根据本公开的一些示范性实施例的柔性显示装置，在需要将柔性显示面板进行稳定显示时，由于设置有磁场产生部件、由直线形导体和U型导轨组成的闭合回路，以及转轴，通过调整磁场产生部件的磁感应强度或流经直线形导体的电流大 小，以及驱动转轴转动的电压或电流的大小，在使柔性显示面板受力平衡时，可以使柔性显示面板进行稳定显示，进而还可以避免柔性显示面板在稳定显示时由于存在不平坦的状态，致使柔性显示面板稳定显示时的显示效果较差的问题。
在具体实施时，对于磁场产生部件，其例如可以为通电的导电线圈，也可以为设置在柔性显示面板和导轨下方的同名磁极(例如同为N极，或同为S极)。以下以磁场产生部件为导电线圈为例，通过具体举例对本公开的一些示范性实施例中的磁场产生部件的设置位置进行举例说明。
例如，参见图3和图4所示，其中，图4是图3的在虚线框处的放大结构示意图，柔性显示面板6的与第一侧边相对的第二侧边绕过直线形导体4并与直线形导体4连接。柔性显示面板6在环绕直线形导体4的位置设置有导电线圈7。根据电流的磁效应，导电线圈7加电时会产生磁场，直线形导体4在导电线圈7提供的磁场作用下会在U型导轨3上运动。柔性显示面板6具体可以是在环绕直线形导体4且位于直线形导体4之下的位置设置一导电线圈，参见图4所示；也可以是在环绕直线形导体4且位于直线形导体4之上的位置设置一导电线圈7，参见图5所示；或者，也可以是在环绕直线形导体4且位于直线形导体4之上、以及位于直线形导体4之下的位置均设置导电线圈7，参见图6所示，以使直线形导体4在导电线圈7产生的磁场作用下在U型导轨3上运动，进而以带动柔性显示面板6由卷筒1展出。当然，在直线形导体4的上下两侧均设置导电线圈7时，需保证两个导电线圈7的绕行方向一致，以产生同一方向的磁场。在具体实施时，可以通过调整流经直线形导体4的电流方向，以及通电线圈7的电流方向，使通电线圈7产生的磁场对直线形导体4在图3中产生向左(即朝向柔性显示面板的第二侧边)的安培力，以使柔性显示面板6可以由卷筒1展出；或者，可以通过调整流经直线形导体4的电流方向，以及通电线圈7的电流方向，使通电线圈7产生的磁场对直线形导体4在图3中产生向右(即朝向柔性显示面板的第一侧边)的安培力，以使柔性显示面板6可以缩回到卷筒1中而被收纳。本公开的一些示范性实施例中，通过在柔性显示面板的一端集成导电线圈，即，将导电线圈作为磁场产生部件，可以在实现使直线形导体在U型导轨上运动时， 使柔性显示装置具有较为简洁的结构，相比于在柔性显示面板和导轨下方设置同名磁极的方案，能够简化柔性显示装置的结构复杂度。
又例如，参见图7和图8所示，其中，图8是图7在虚线框处的放大结构示意图，柔性显示装置还包括设置在直线形导体4之下的柔性基板5，柔性基板5的第一侧边与转轴2固定，相对的第二侧边向上绕过直线形导体4并与该直线形导体4固定。柔性基板5环绕直线形导体4的位置设置有导电线圈7。根据电流的磁效应，导电线圈7加电时会产生磁场，直线形导体4在导电线圈7提供的磁场作用下会在U型导轨3上运动。同样，导电线圈7可以是设置在柔性基板5环绕直线形导体4的位置，具体可以是位于直线形导体4之上或之下，也可以在导体的上、下均设置直线形导体4。
另外，在具体实施时，磁场产生部件还可以为其它的结构形式，只要能为柔性显示面板提供稳定磁场，在本公开的保护范围之内。
在具体实施时，U型导轨为柔性U型导轨，不需要显示时，U型导轨收卷到卷筒内。本公开的一些示范性实施例中，U型导轨为柔性U型导轨，进而在不需要显示时，U型导轨可以随柔性显示面板一起收卷到卷筒内，提高了柔性显示装置使用时的方便性。具体柔性U型导轨的材质可以为金属，即，可以采用金属细线形成柔性U型导轨。
可选的，卷筒为遮光卷筒。本公开的一些示范性实施例中，卷筒为遮光卷筒，可以在柔性显示面板不需要显示并收卷到卷筒内时，避免外界光对柔性显示面板长时间光照时，影响柔性显示面板的性能。
可选的，柔性显示装置还包括与转轴2连接的驱动部件；柔性显示装置不需要显示时，给驱动部件加电，驱动转轴2运动，将柔性显示面板6收卷到卷筒1内。可选的，驱动部件具体可以为电动马达。
在具体实施时，柔性显示装置还包括电源部件，电源部件配置成能够为磁场产生部件、U型导轨、电动马达供电。
通过安培力的计算公式F＝I*L*B*sinα来计算出直线形导体所受到的安培力的大小，其中：F为直线形导体所受到的安培力；I为流经直线形导体的电流；L跨接在U形导轨上的直线形导体的长度；B为磁场产生部件的磁感应强度；α为直线形导体中的电流方向与磁场方向之间的夹角(在本申请图3-图8所示的一些示范性实施例中，α为90度)。然后，通过调整磁场产生部件的磁感应强度B和流经直线形导体的电 流I的大小二者中的至少一者，就能够调节直线形导体所受到的安培力F的大小。
使用中，当需要将柔性显示面板展开以便进行显示时，可通过以上所述安培力大小的控制方法对安培力大小进行控制，以使其大于驱动部件(例如电动马达)施加到卷筒的转轴上的驱动力(其方向与安培力相反)，这样施加到直线形导体上的安培力就会带动柔性显示面板朝着背离卷筒的方向展开。当柔性显示面板展开到达所期望的位置时，减小磁感应强度B和电流I的大小二者中的至少一者以使安培力F的大小与驱动部件施加到卷筒的转轴上的驱动力大小相等，这时柔性显示面板处于受力平衡，处于运动静止状态，由于施加到卷筒的转轴上的驱动力方向与安培力方向相反，柔性显示面板处于张紧状态，因此处于平坦状态。当需要将柔性显示面板缩回以便收纳到卷筒时，进一步减小磁感应强度B和电流I的大小二者中的至少一者以使安培力F的大小小于驱动部件施加到卷筒的转轴上的驱动力的大小，这时柔性显示面板在驱动力的作用下缩回到卷筒中，以处于收纳状态。
本公开的一些示范性实施例有益效果如下：本公开的一些示范性实施例提供的柔性显示装置包括磁场产生部件，以及由直线形导体和U型导轨组成的闭合回路，并通过将柔性显示面板第二侧边与直线形导体连接，其相对的第一侧边与转轴连接，由于加电的直线形导体在磁场作用下会受到安培力，进而可以由直线形导体带动柔性显示面板进行运动，在需要将柔性显示面板显示时，可以实现将柔性显示面板自动由卷筒展出，在不需要显示时，可以通过卷筒的转轴将柔性显示面板自动收取到卷筒内，可以使柔性显示面板实现自主性展开以及收取功能。
相比于相关技术的柔性显示面板在展开显示时，由于卷曲后的柔性显示面板再进行展开显示时，总是趋向于再次卷曲，进而使柔性显示面板显示时存在不平坦的状态，致使柔性显示面板稳定显示时存在显示效果较差的问题，本公开的一些实施中的柔性显示装置具有以下技术效果：在需要将柔性显示面板进行稳定显示时，由于设置有磁场产生部件、由直线形导体和U型导轨组成的闭合回路，以及转轴，通过调整磁场产生部件的磁感应强度或流经直线形导体的电流大小，以及驱动转轴转动时的电压或电流的大小，在使柔性显示面板受力平衡 时，可以使柔性显示面板进行稳定显示，进而还可以避免柔性显示面板在稳定显示时由于存在不平坦的状态，致使柔性显示面板的显示效果较差的问题。
应当理解，尽管在以上的叙述中已经阐明了本公开的各种特征和有益效果以及本公开结构和功能的具体细节，但是这些内容仅仅是示范性的，其具体细节，尤其是形状、大小、数量和构件的布置在本公开原理的范围内可以被具体改变成由本公开权利要求书所主张的由宽泛上位意思所表示的整体范围。
除非另有限定，用在本说明书中的所有技术和科学术语具有与本公开所属的领域中熟练的技术人员所通常理解的意义相同的意义。
本领域技术人员将理解本文中(诸如在“基本上所有光”中或在“基本上由......组成”中)的术语“基本上”。术语“基本上”还可包括具有“整个地”、“完全地”、“所有”等的实施例。因此，在实施例中，形容词基本上也是可移除的。在适用的情况下，术语“基本上”还可涉及90％或更高、诸如95％或更高、特别地99％或更高、甚至更特别地99.5％或更高、包括100％。术语“包括”还包括其中术语“包括”意味着“由......组成”的实施例。术语“和/或”特别地涉及“和/或”之前和之后所提及项目中的一个或多个。比如，短语“项目1和/或项目2”和类似短语可涉及项目1和项目2中的一个或多个。术语“包括”可在一个实施例中是指“由......组成”，但可在另一个实施例中也指“包含至少所限定种类并且可选地包含一个或多个其他种类”。
此外，本说明书中和权利要求中的术语第一、第二、第三等用于在类似元件之间进行区分，并不表示任何顺序、数量或者重要性。应理解，如此使用的术语在适当情形下是可互换的，并且本文所描述的本公开的实施例能够按与本文所描述或示出不同的顺序进行操作。
“上”、“下”、“左”、“右”等仅用于表示相对位置关系，当被描述对象的绝对位置改变后，则该相对位置关系也可能相应地改变。
应注意，以上提及的实施例说明而不是限制本公开，并且本领域技术人员将能够在不背离所附权利要求的范围的情况下设计许多替代实施例。在权利要求中，放置在括号之间的任何参考标记不应被解释 为限制权利要求。动词“以包括”及其词形变化的使用并不排除存在与权利要求中所陈述的那些不同的元件或步骤。本公开权利要求书中的措辞“一”或“一个”不排除复数，其仅仅旨在叙述的方便，不应当理解为对本公开保护范围的限缩。
本公开可借助于包括若干不同元件的硬件、以及借助于适当编程的计算机来实现。在枚举若干器件的装置权利要求中，这些装置中的若干个可由同一个硬件项体现。在相互不同的从属权利要求中叙述某些措施的纯粹事实并不指示不能有利地使用这些措施的组合。
本公开进一步适用于包括本说明书中所描述和/或附图中所示出的表征特征中的一个或多个的装置。本公开进一步涉及包括本说明书中所描述和/或附图中所示出的表征特征中的一个或多个的方法或过程。
本公开中所论述的各种方面可组合起来，以便提供另外的优点。另外，本领域技术人员将理解实施例可组合起来，并且多于两个实施例也可组合起来。此外，一些特征可形成一个或多个分案申请的基础。

Claims (15)

  1. 一种柔性显示装置，包括：
    柔性显示面板；
    卷筒，其表面设置有狭缝开口且内部设置有转轴；
    基本上呈U型的导轨，其具有彼此相对的开口侧和封闭端，该封闭端邻近所述转轴设置；
    基本上呈直线形的导体，其配置成跨接在所述U型导轨的该开口侧以与所述U型导轨形成一闭合回路；以及
    磁场产生部件，其配置成为所述直线形导体提供磁场，
    其中所述柔性显示面板的第一侧边通过所述狭缝开口与所述卷筒的所述转轴连接，所述柔性显示面板的与该第一侧边相对的第二侧边与所述直线形导体连接。
  2. 如权利要求1所述的柔性显示装置，其中，所述柔性显示装置配置成，当为所述直线形导体加电时，能够使所述直线形导体受力，从而使所述柔性显示面板处于以下状态中的任一种：朝着背离卷筒的方向展开；朝向卷筒的方向缩回；和处于张紧且静止状态。
  3. 如权利要求1所述的柔性显示装置，其中，所述柔性显示面板配置成使其第二侧边绕过所述直线形导体并与所述直线形导体连接。
  4. 如权利要求1所述的柔性显示装置，其中，所述磁场产生部件包括设置在所述直线形导体的周缘处的导电线圈，所述柔性显示装置配置成，当为所述导电线圈加电时，能够使所述直线形导体受力，从而使所述柔性显示面板处于以下状态中的任一种：朝着背离卷筒的方向展开；朝向卷筒的方向缩回；和处于张紧且静止状态。
  5. 如权利要求4所述的柔性显示装置，其中所述导电线圈设置在所述直线形导体的周缘处的远离所述直线形导体一侧。
  6. 如权利要求4所述的柔性显示装置，其中所述导电线圈设置在所述直线形导体的周缘处的邻近所述直线形导体一侧。
  7. 如权利要求1所述的柔性显示装置，还包括设置在所述直线形导体之下的柔性基板，所述柔性基板的第一侧边与所述转轴固定，所述柔性基板的与第一侧边相对的第二侧边绕过所述直线形导体并与该所述直线形导体固定。
  8. 如权利要求7所述的柔性显示装置，其中所述磁场产生部件包括设置在所述直线形导体的周缘处的导电线圈，所述柔性显示装置配置成，当为所述导电线圈加电时，能够使所述直线形导体受力，从而使所述柔性显示面板处于以下状态中的任一种：朝着背离卷筒的方向展开；朝向卷筒的方向缩回；和处于张紧且静止状态。
  9. 如权利要求1所述的柔性显示装置，还包括与所述转轴连接的驱动部件，以用于驱动所述转轴运动。
  10. 如权利要求9所述的柔性显示装置，其中，所述驱动部件为电动马达。
  11. 如权利要求10所述的柔性显示装置，还包括电源部件，所述电源部件配置成为所述磁场产生部件、所述U型导轨、和所述电动马达中的至少一者供电。
  12. 如权利要求1所述的柔性显示装置，其中，所述U型导轨为柔性U型导轨。
  13. 如权利要求12所述的柔性显示装置，其中，所述U型导轨的材质为金属。
  14. 如权利要求1所述的柔性显示装置，其中，所述卷筒为遮光卷筒。
  15. 如权利要求1所述的柔性显示装置，其中，该狭缝开口的长度方向平行于该转轴的轴向方向，且其开口方向与该柔性显示面板对准。
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