WO2020224151A1 - 一种可折叠显示装置 - Google Patents

一种可折叠显示装置 Download PDF

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Publication number
WO2020224151A1
WO2020224151A1 PCT/CN2019/105942 CN2019105942W WO2020224151A1 WO 2020224151 A1 WO2020224151 A1 WO 2020224151A1 CN 2019105942 W CN2019105942 W CN 2019105942W WO 2020224151 A1 WO2020224151 A1 WO 2020224151A1
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WO
WIPO (PCT)
Prior art keywords
support
display screen
folding mechanism
flexible display
flexible
Prior art date
Application number
PCT/CN2019/105942
Other languages
English (en)
French (fr)
Inventor
冯子康
Original Assignee
武汉华星光电半导体显示技术有限公司
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.)
Filing date
Publication date
Application filed by 武汉华星光电半导体显示技术有限公司 filed Critical 武汉华星光电半导体显示技术有限公司
Priority to US16/621,313 priority Critical patent/US11217124B2/en
Publication of WO2020224151A1 publication Critical patent/WO2020224151A1/zh

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Classifications

    • 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
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F1/00—Details not covered by groups G06F3/00 - G06F13/00 and G06F21/00
    • G06F1/16—Constructional details or arrangements
    • G06F1/1613—Constructional details or arrangements for portable computers
    • G06F1/1633—Constructional details or arrangements of portable computers not specific to the type of enclosures covered by groups G06F1/1615 - G06F1/1626
    • G06F1/1637—Details related to the display arrangement, including those related to the mounting of the display in the housing
    • G06F1/1652—Details related to the display arrangement, including those related to the mounting of the display in the housing the display being flexible, e.g. mimicking a sheet of paper, or rollable
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F1/00—Details not covered by groups G06F3/00 - G06F13/00 and G06F21/00
    • G06F1/16—Constructional details or arrangements
    • G06F1/1613—Constructional details or arrangements for portable computers
    • G06F1/1633—Constructional details or arrangements of portable computers not specific to the type of enclosures covered by groups G06F1/1615 - G06F1/1626
    • G06F1/1675—Miscellaneous details related to the relative movement between the different enclosures or enclosure parts
    • G06F1/1681—Details related solely to hinges
    • 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
    • G09F9/33—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 being semiconductor devices, e.g. diodes
    • 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
    • G09F9/33—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 being semiconductor devices, e.g. diodes
    • G09F9/335—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 being semiconductor devices, e.g. diodes being organic light emitting diodes [OLED]

Definitions

  • the present invention relates to the field of display technology, and in particular to a foldable display device.
  • OLED has received widespread attention due to its bendability and flexibility.
  • the current mainstream foldable display devices equipped with flexible OLEDs are folded in and out.
  • the existing foldable display devices generally use flexible displays and folds. The structure fits and fixes the way, when the folding mechanism is folded, the flexible display screen and the folding mechanism are folded at the same time, which is easy to damage the flexible display screen.
  • the existing foldable display device generally adopts a method in which the flexible display screen and the folding structure are attached and fixed. When the folding mechanism is folded, the flexible display screen and the folding mechanism are folded at the same time, which easily damages the flexible display screen.
  • a foldable display device which includes:
  • a folding mechanism having an upper supporting surface and a lower supporting surface arranged opposite to the upper supporting surface.
  • the folding mechanism includes a first support and a second support that are arranged side by side and connected to each other, the first support Rotate with the second support around the first direction to make the folding mechanism in a folded or unfolded state;
  • a flexible display screen which is arranged on the folding mechanism, and the flexible display screen includes a first end and a second end that are oppositely arranged;
  • a winding mechanism which is arranged on the first support or/and the second support for winding the flexible display screen, when the first support and the second support are wound around the second support When rotating in one direction, the winding mechanism winds the flexible display screen or the winding mechanism releases the wound part of the flexible display screen;
  • the first end of the flexible display screen bypasses one end of the folding mechanism and is connected to the first support, and the second end bypasses the other end of the folding mechanism and is connected to the second support;
  • the folding mechanism When the folding mechanism is in the unfolded state, the flexible display screen is located on the upper support surface and the lower support surface; when the folding mechanism is in the folded state, the flexible display screen is located on the lower support surface.
  • the winding mechanism is provided with one, the winding mechanism is fixed on the first support, and the first end of the flexible display screen is connected to the winding mechanism; or, the winding mechanism The mechanism is fixed on the second support, and the second end of the flexible display screen is connected with the winding mechanism.
  • winding mechanisms there are two winding mechanisms, one winding mechanism is provided on the first support, the other winding mechanism is provided on the second support, and the flexible display
  • the first end of the screen is connected with a winding mechanism
  • the second end of the flexible display screen is connected with another winding mechanism.
  • a flexible support plate is provided between the flexible display screen and the folding mechanism, the first end of the flexible display screen is fixedly connected to one end of the flexible support plate, and the second end of the flexible display screen It is fixedly connected with the other end of the flexible support plate.
  • the flexible display screen is attached and fixed to the flexible support board.
  • the winding mechanism includes a coil spring, the axis of the coil spring is parallel to the first direction, the inner end of the coil spring is fixedly connected to the folding mechanism, and the outer end of the coil spring is connected to the folding mechanism.
  • the ends of the flexible support plate are fixedly connected, and when the first support and the second support rotate in a first direction, the coil spring provides tension to keep the flexible support plate connected to the folding mechanism. The ends are attached to the contacts.
  • the folding mechanism is provided with a cavity, the coil spring is arranged in the cavity, the folding mechanism is provided with an opening, and the end of the flexible support plate passes through the opening and the Coil spring connection.
  • first support and the second support are hingedly connected by a hinge.
  • the hinge is an angular positioning hinge, so that the first support and the second support rotate around the first direction and are positioned at any angle.
  • the hinge is arranged at the lower supporting surface of the folding mechanism.
  • a pulley is provided at the end of the folding mechanism, the axis of the pulley is parallel to the first direction, the pulley is connected to the folding mechanism around its axial rotation, and the flexible display screen bypasses The pulley abuts against the pulley.
  • the folding mechanism does not fit the flexible display screen
  • the flexible display screen does not need to be folded at the same time as the folding mechanism, thereby preventing damage to the flexible display screen.
  • the winding storage is carried out to prevent the flexible display screen from being separated from the folding mechanism, while keeping the flexible display screen in a flat state, preventing the problem of the size of the folding mechanism being mismatched with the flexible display screen caused by the bending of the folding mechanism.
  • FIG. 1 is a schematic diagram of a foldable display device in a fully unfolded state in an embodiment of the present invention
  • FIG. 2 is a schematic diagram of the foldable display device in a fully folded state in an embodiment of the present invention
  • FIG. 3 is a schematic diagram of the winding mechanism on the foldable display device of the present invention.
  • FIG. 4 is a schematic structural diagram of a foldable display device in an embodiment of the present invention.
  • FIG. 5 is a schematic diagram of the foldable display device in a folded state in an embodiment of the present invention.
  • FIG. 6 is a schematic structural diagram of a foldable display device in an embodiment of the present invention.
  • the invention addresses the technical problem that in the existing foldable display device, when the folding mechanism is folded, the flexible display screen and the folding mechanism are folded at the same time, which easily damages the flexible display screen.
  • the present invention can solve the above-mentioned problems.
  • a foldable display device as shown in FIGS. 1 and 2, the foldable display device includes a folding mechanism 10, a flexible display screen 20 and a winding mechanism 40.
  • the folding mechanism 10 has an upper supporting surface 13 for supporting the flexible display screen 20, a lower supporting surface 14 arranged opposite to the upper supporting surface 13, and an end surface located at the end of the folding mechanism 15;
  • the folding mechanism 10 includes a first support 11 and a second support 12 that are arranged side by side and connected to each other. The first support 11 and the second support 12 rotate around the first direction to make the The folding mechanism 10 is in a folded or unfolded state.
  • the upper supporting surface 13 includes a first flat surface 131 arranged on the first support 11 and a second flat surface 132 arranged on the second support 12, when the first support 11 When the second support 12 rotates around the first direction until the first plane 131 and the second plane 132 are on the same plane, the first plane 131 and the second plane 132 form an upper supporting surface 13 on the same plane At this time, the folding mechanism 10 is in a fully unfolded state.
  • the flexible display screen 20 is disposed on the folding mechanism 10, and the flexible display screen 20 includes a first end 21 and a second end 22 that are arranged oppositely.
  • the flexible display screen 20 is a flexible organic light emitting diode (OLED) display screen.
  • OLED organic light emitting diode
  • the winding mechanism 40 is arranged on the first support 11 or/and the second support 12 for winding the flexible display screen 20, when the first support 11 and the second support 12 When the second support 12 rotates in the first direction, the winding mechanism 40 winds the flexible display screen 20 or the winding mechanism 40 releases the wound portion of the flexible display screen 20.
  • the first end 21 of the flexible display screen 20 bypasses one end of the folding mechanism 10 and is connected to the first support 11, and the second end 22 bypasses the other end of the folding mechanism 10 and is connected to The second support 12 is connected; when the folding mechanism 10 is in the unfolded state, the flexible display screen 20 is located on the upper supporting surface 13 and the lower supporting surface 14; when the folding mechanism 10 is in the folded state , The flexible display screen 20 is located on the lower supporting surface 14.
  • FIG. 2 is a schematic diagram of the folding mechanism 10 when it is in a fully folded state.
  • the foldable display device is easy to carry.
  • the folding mechanism 10 does not fit the flexible display screen 20
  • the flexible display screen 20 does not have to be folded at the same time as the folding mechanism 10, thereby preventing damage to the flexible display screen 20 and using the roll
  • the winding mechanism 40 winds and accommodates the flexible display screen 20, thereby preventing the flexible display screen 20 from being separated from the folding mechanism 10, while keeping the flexible display screen 20 in a flat state, and preventing the folding mechanism 10 surface and the flexible display caused by bending of the folding mechanism 10
  • the size of the screen 20 does not match.
  • a flexible support plate 30 is provided between the flexible display screen 20 and the folding mechanism 10, and the first end 21 of the flexible display screen 20 is fixedly connected to one end of the flexible support plate 30, The second end 22 of the flexible display screen 20 is fixedly connected to the other end of the flexible support plate 30.
  • the flexible display screen 20 is attached and fixed to the flexible support plate 30.
  • the flexible support plate 30 is a metal sheet, and the thickness of the flexible support plate 30 is 5 to 35 microns.
  • the pulling force of the winding mechanism 40 can be applied to the flexible support plate 30, preventing the flexible display screen 20 from being prone to creep and being elongated under the action of long-term pulling force.
  • the friction between the flexible display screen 20 and the folding mechanism 10 reduces the wear of the flexible display screen 20.
  • the winding mechanism 40 includes a winding spring 41, the axis of the winding spring 41 is parallel to the first direction, the inner end of the winding spring 41 is fixedly connected to the folding mechanism 10, and the outer end of the winding spring 41 is The end is fixedly connected to the end of the flexible support plate 30.
  • the coil spring 41 provides a tensile force to make the flexible support plate 30 is kept in contact with the end of the folding mechanism 10.
  • the flexible support plate 30 is in contact with the upper support surface 13, the lower support surface 14 and the end surface 15.
  • the first support 11 or/and the second support 12 are fixedly provided with a support 50, and the support 50 includes a support shaft arranged along the axial direction of the coil spring 41 51.
  • the coil spring 41 is sleeved on the support shaft 51, and the inner end of the coil spring 41 is fixedly connected with the corresponding support shaft 51, so that the inner end of the coil spring 41 is fixedly connected with the folding mechanism 10.
  • winding mechanisms 40 are provided, one winding mechanism 40 is provided on the first support 11, and the other winding mechanism 40 is provided on the first support 11.
  • the first end 21 of the flexible display screen 20 is connected with a winding mechanism 40
  • the second end 22 of the flexible display screen 20 is connected with another winding mechanism 40.
  • one end of the flexible support plate 30 is fixedly connected to the outer end of one of the coil springs 41, and the other end of the flexible support plate 30 is fixedly connected to the outer end of the other coil spring 41.
  • the winding mechanism 40 is provided with one, the winding mechanism 40 is fixed on the first support 11, and the first end 21 of the flexible display screen 20 is connected to the roll Circumference mechanism 40 is connected.
  • one end of the flexible support plate 30 is fixedly connected to the outer end of the coil spring 41, and the other end of the flexible support plate 30 is fixedly connected to the second support 12.
  • the winding mechanism 40 is provided with one, the winding mechanism 40 is fixed on the two supports 12, and the second end 22 of the flexible display screen 20 is connected to the winding mechanism 40. The mechanism 40 is connected.
  • one end of the flexible support plate 30 is fixedly connected to the outer end of the coil spring 41, and the other end of the flexible support plate 30 is fixedly connected to the first support 11.
  • the folding mechanism 10 is provided with a cavity 16, the coil spring 41 is disposed in the cavity 16, the folding mechanism 10 is provided with an opening, and the end of the flexible support plate 30 passes through The opening is connected with the coil spring 41.
  • the first support 11 and the second support 12 are hingedly connected by a hinge 60, and the first support 11 is connected to one side wing 61 of the hinge 60.
  • the second support 12 is fixedly connected to the other side wing 61 of the hinge 60 so as to realize the relative rotation of the first support 11 and the second support 12 around the first direction.
  • the hinge 60 is an angular positioning hinge, so that the first support 11 and the second support 12 can rotate around the first direction and be positioned at any angle.
  • hinge 60 is provided on the lower supporting surface 14 of the folding mechanism 10.
  • the torsion force of the angular positioning hinge 60 enables the first support 11 and the second support 12 to maintain positioning and balance when rotated to any angle, so that the above foldable display device can be used as a small vertical display. It is used to display the time calendar, etc., and I will not give examples here.
  • a pulley 70 is provided at the end of the folding mechanism 10, the axis of the pulley 70 is parallel to the first direction, and the pulley 70 is rotatably connected around its axial direction.
  • the flexible display screen 20 bypasses the pulley 70 and abuts against the pulley 70, that is, the flexible support plate 30 contacts the pulley 70.
  • both ends of the folding mechanism 10 are provided with pulleys 70.
  • the pulley 70 is used to make the flexible support plate 30 move more smoothly on the folding mechanism 10, and at the same time reduce the damage of the flexible display screen 20 due to sliding friction.
  • the beneficial effect of the present invention is that the folding mechanism 10 does not fit with the flexible display screen 20, so that when the folding mechanism 10 is folded, the flexible display screen 20 does not need to be folded simultaneously with the folding mechanism 10, thereby preventing the flexible display screen from being folded. 20 causes damage, and the flexible display screen 20 is wound and stored by the winding mechanism 40, thereby preventing the flexible display screen 20 from being separated from the folding mechanism 10, while keeping the flexible display screen 20 flat and preventing the folding mechanism 10 from bending.
  • the surface of the folding mechanism 10 does not match the size of the flexible display 20.

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  • Theoretical Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Computer Hardware Design (AREA)
  • Human Computer Interaction (AREA)
  • General Engineering & Computer Science (AREA)
  • Microelectronics & Electronic Packaging (AREA)
  • Optics & Photonics (AREA)
  • Devices For Indicating Variable Information By Combining Individual Elements (AREA)

Abstract

一种可折叠显示装置，包括柔性显示屏（20）、折叠机构（10）和卷绕机构（40）；折叠机构（10）具有上支撑面（13）和下支撑面（14），折叠机构（14）包括第一支座（11）和第二支座（12），柔性显示屏（20）的第一端（21）绕过折叠机构（10）的一端且与第一支座（11）连接，第二端（22）绕过折叠机构（10）的另一端且与第二支座（12）连接。

Description

一种可折叠显示装置 技术领域
本发明涉及显示技术领域，尤其涉及一种可折叠显示装置。
 背景技术
目前OLED以其可弯曲可挠曲受到广泛关注，目前搭载柔性OLED的主流可折叠显示装置的折叠方式为内折和外折，然而，现有的可折叠显示装置中一般采用柔性显示屏与折叠结构贴合固定的方式，折叠机构折叠时.柔性显示屏与折叠机构同时进行折叠，容易对柔性显示屏造成损坏。
 技术问题
现有的可折叠显示装置中一般采用柔性显示屏与折叠结构贴合固定的方式，折叠机构折叠时.柔性显示屏与折叠机构同时进行折叠，容易对柔性显示屏造成损坏。
 技术解决方案
一种可折叠显示装置，其包括：
折叠机构，其具有上支撑面以及与所述上支撑面背向设置的下支撑面，所述折叠机构包括并排设置且相互连接的第一支座和第二支座，所述第一支座与所述第二支座绕第一方向转动以使所述折叠机构处于折叠或展开状态；
柔性显示屏，其设置于所述折叠机构上，所述柔性显示屏包括相对设置的第一端和第二端；
卷绕机构，其设置于所述第一支座或/和所述第二支座上以用于卷绕所述柔性显示屏，当所述第一支座与所述第二支座绕第一方向转动时，所述卷绕机构卷绕所述柔性显示屏或所述卷绕机构释放所述柔性显示屏被卷绕的部分；
所述柔性显示屏的第一端绕过所述折叠机构的一端且与所述第一支座连接，第二端绕过所述折叠机构的另一端且与所述第二支座连接；所述折叠机构处于展开状态时，所述柔性显示屏位于所述上支撑面和所述下支撑面上；所述折叠机构处于折叠状态时，所述柔性显示屏位于所述下支撑面上。
进一步的，所述卷绕机构设置有一个，所述卷绕机构固定于所述第一支座上，所述柔性显示屏的第一端与所述卷绕机构连接；或者，所述卷绕机构固定于所述第二支座上，所述柔性显示屏的第二端与所述卷绕机构连接。
进一步的，所述卷绕机构设置有两个，一个所述卷绕机构设置于所述第一支座上，另一个所述卷绕机构设置于所述第二支座上，所述柔性显示屏的第一端与一个卷绕机构连接，所述柔性显示屏的第二端与另一个卷绕机构连接。
进一步的，所述柔性显示屏与所述折叠机构之间设置有柔性支撑板，所述柔性显示屏的第一端与所述柔性支撑板的一端固定连接，所述柔性显示屏的第二端与所述柔性支撑板的另一端固定连接。
进一步的，所述柔性显示屏贴附并固定于所述柔性支撑板上。
进一步的，所述卷绕机构包括卷簧，所述卷簧的轴线平行于所述第一方向，所述卷簧的内端与所述折叠机构固定连接，所述卷簧的外端与所述柔性支撑板的端部固定连接，所述第一支座与所述第二支座绕第一方向转动时，所述卷簧提供拉力以使所述柔性支撑板保持与所述折叠机构的端部贴附触接。
进一步的，所述折叠机构内设有空腔，所述卷簧设置于所述空腔中，所述折叠机构上设有开口，所述柔性支撑板的端部穿过所述开口与所述卷簧连接。
进一步的，所述第一支座与所述第二支座通过一铰链铰接。
进一步的，所述铰链为角度定位铰链，以使所述第一支座和所述第二支座绕所述第一方向转动并定位到任意角度。
进一步的，所述铰链设置于所述折叠机构的下支撑面处。
进一步的，所述折叠机构的端部处设置有滑轮，所述滑轮的轴线平行于所述第一方向，所述滑轮绕其轴向转动连接于所述折叠机构，所述柔性显示屏绕过所述滑轮且与所述滑轮抵接。
有益效果
通过采用折叠机构与柔性显示屏不贴合的方式，从而使折叠机构折叠时,柔性显示屏不必与折叠机构同时进行折叠，从而防止对柔性显示屏造成损坏，而利用卷绕机构对柔性显示屏进行卷绕收纳，从而防止柔性显示屏与折叠机构脱离，同时使柔性显示屏保持平整状态，防止折叠机构弯折造成的折叠机构表面与柔性显示屏尺寸不匹配的问题。
 附图说明
为了更清楚地说明实施例或现有技术中的技术方案，下面将对实施例或现有技术描述中所需要使用的附图作简单介绍，显而易见地，下面描述中的附图仅仅是发明的一些实施例，对于本领域普通技术人员来讲，在不付出创造性劳动的前提下，还可以根据这些附图获得其他的附图。
图1为本发明一实施方式中可折叠显示装置处于完全展开状态时的示意图；
图2为本发明一实施方式中可折叠显示装置处于完全折叠状态时的示意图；
图3为本发明中可折叠显示装置上的卷绕机构的示意图；
图4为本发明一实施方式中可折叠显示装置的结构示意图；
图5为本发明一实施方式中可折叠显示装置处于折叠状态时的示意图；
图6为本发明一实施方式中可折叠显示装置的结构示意图。
附图标记：
10、折叠机构；11、第一支座；12、第二支座；13、上支撑面；131、第一平面；132、第二平面；14、下支撑面；15、端面；16、空腔；20、柔性显示屏；21、第一端；22、第二端；30、柔性支撑板；40、卷绕机构；41、卷簧；50、支撑座；51、支撑轴；60、铰链；61、侧翼；70、滑轮。
 本发明的实施方式
以下各实施例的说明是参考附加的图示，用以例示本发明可用以实施的特定实施例。本发明所提到的方向用语，例如[上]、[下]、[前]、[后]、[左]、[右]、[内]、[外]、[侧面]等，仅是参考附加图式的方向。因此，使用的方向用语是用以说明及理解本发明，而非用以限制本发明。在图中，结构相似的单元是用以相同标号表示。
本发明针对现有的可折叠显示装置中,折叠机构折叠时,柔性显示屏与折叠机构同时进行折叠，容易对柔性显示屏造成损坏的技术问题。本发明可以解决上述问题。
一种可折叠显示装置，如图1和图2所示，所述可折叠显示装置包括折叠机构10、柔性显示屏20以及卷绕机构40。
其中，所述折叠机构10具有对所述柔性显示屏20进行支撑的上支撑面13、与所述上支撑面13背向设置的下支撑面14，以及，位于所述折叠机构端部的端面15；所述折叠机构10包括并排设置且相互连接的第一支座11和第二支座12，所述第一支座11与所述第二支座12绕第一方向转动以使所述折叠机构10处于折叠或展开状态。
需要说明的是，所述上支撑面13包括设置在第一支座11上的第一平面131和设置在所述第二支座12上的第二平面132，当所述第一支座11与所述第二支座12绕第一方向转动到第一平面131与第二平面132位于同一平面时，所述第一平面131与所述第二平面132形成处于同一平面的上支撑面13，此时折叠机构10为完全展开状态。
其中，所述柔性显示屏20设置于所述折叠机构10上，所述柔性显示屏20包括相对设置的第一端21和第二端22。
在一实施方式中，所述柔性显示屏20为柔性有机发光二极管（OLED）显示屏。
其中，所述卷绕机构40设置于所述第一支座11或/和所述第二支座12上以用于卷绕所述柔性显示屏20，当所述第一支座11与所述第二支座12绕第一方向转动时，所述卷绕机构40卷绕所述柔性显示屏20或所述卷绕机构40释放所述柔性显示屏20被卷绕的部分。
具体的，所述柔性显示屏20的第一端21绕过所述折叠机构10的一端且与所述第一支座11连接，第二端22绕过所述折叠机构10的另一端且与所述第二支座12连接；所述折叠机构10处于展开状态时，所述柔性显示屏20位于所述上支撑面13和所述下支撑面上14；所述折叠机构10处于折叠状态时，所述柔性显示屏20位于所述下支撑面14上。
如图2所示，图2为折叠机构10处于完全折叠状态时的示意图，此时可折叠显示装置便于携带。通过采用折叠机构10与柔性显示屏20不贴合的方式，从而使折叠机构10折叠时,柔性显示屏20不必与折叠机构10同时进行折叠，从而防止对柔性显示屏20造成损坏，而利用卷绕机构40对柔性显示屏20进行卷绕收纳，从而防止柔性显示屏20与折叠机构10脱离，同时使柔性显示屏20保持平整状态，防止折叠机构10弯折造成的折叠机构10表面与柔性显示屏20尺寸不匹配的问题。
如图3所示，所述柔性显示屏20与所述折叠机构10之间设置有柔性支撑板30，所述柔性显示屏20的第一端21与所述柔性支撑板30的一端固定连接，所述柔性显示屏20的第二端22与所述柔性支撑板30的另一端固定连接。
进一步的，所述柔性显示屏20贴附并固定于所述柔性支撑板30上。
进一步的，所述柔性支撑板30为金属片，所述柔性支撑板30的厚度为5～35微米。
通过在柔性显示屏20的下部设置柔性支撑板30，可以将卷绕机构40的拉力作用于柔性支撑板30上，防止柔性显示屏20在长期拉力作用下容易发生蠕变被拉长，同时减少柔性显示屏20与折叠机构10之间的摩擦，减小柔性显示屏20的磨损。
所述卷绕机构40包括卷簧41，所述卷簧41的轴线平行于所述第一方向，所述卷簧41的内端与所述折叠机构10固定连接，所述卷簧41的外端与所述柔性支撑板30的端部固定连接，所述第一支座11与所述第二支座12绕第一方向转动时，所述卷簧41提供拉力以使所述柔性支撑板30保持与所述折叠机构10的端部贴附触接。
需要说明的是，所述折叠机构10处于完全展开状态时，所述柔性支撑板30与上支撑面13、下支撑面14以及端面15贴合触接。
在一实施方式中，所述第一支座11或/和所述第二支座12上固定设置有支撑座50，所述支撑座50包括沿所述卷簧41的轴向设置的支撑轴51，所述卷簧41套接在所述支撑轴51上，所述卷簧41的内端与对应支撑轴51固定连接，从而使得所述卷簧41的内端与折叠机构10固定连接。
对于本领域技术人员可知，卷簧41被压缩时，具有回复到自然拉伸状态的趋势，利用卷簧41被压缩时具有的弹性势能，折叠机构10折叠的过程中，卷簧41的回复力将柔性显示屏20“多余”的部分收纳卷起，折叠机构10展开的过程中，在外界拉力的作用下拉动卷簧41将柔性显示屏20“多余”的部分释放出来，从而在折叠机构10进行折叠和展开时使得柔性支撑板30与折叠机构10始终保持相对紧贴，防止用户使用柔性显示屏20时在视觉上出现屏幕浮起现象。
在第一种实施方式中，所述卷绕机构40设置有两个，一个所述卷绕机构40设置于所述第一支座11上，另一个所述卷绕机构40设置于所述第二支座12上，所述柔性显示屏20的第一端21与一个卷绕机构40连接，所述柔性显示屏20的第二端22与另一个卷绕机构40连接。
进一步的，所述柔性支撑板30的一端与一个所述卷簧41的外端固定连接，所述柔性支撑板30另一端与另一个卷簧41的外端固定连接。
在第二种实施方式中，所述卷绕机构40设置有一个，所述卷绕机构40固定于所述第一支座11上，所述柔性显示屏20的第一端21与所述卷绕机构40连接。
进一步的，所述柔性支撑板30的一端与所述卷簧41的外端固定连接，所述柔性支撑板30另一端与第二支座12固定连接。
在第三种实施方式中，所述卷绕机构40设置有一个，所述卷绕机构40固定于所述二支座12上，所述柔性显示屏20的第二端22与所述卷绕机构40连接。
进一步的，所述柔性支撑板30的一端与所述卷簧41的外端固定连接，所述柔性支撑板30另一端与第一支座11固定连接。
具体的，所述折叠机构10内设有空腔16，所述卷簧41设置于所述空腔16中，所述折叠机构10上设有开口，所述柔性支撑板30的端部穿过所述开口与所述卷簧41连接。
如图4所示，在一实施方式中，所述第一支座11与所述第二支座12通过一铰链60铰接，所述第一支座11与所述铰链60的一侧侧翼61固定连接，所述第二支座12与所述铰链60的另一侧侧翼61固定连接，从而实现第一支座11与第二支座12绕第一方向的相对转动。
进一步的，所述铰链60为角度定位铰链，以使所述第一支座11和所述第二支座12绕所述第一方向转动并定位到任意角度。
进一步的，所述铰链60设置于所述折叠机构10的下支撑面14。
参见图5所示，通过角度定位铰链60的扭力使得第一支座11与第二支座12转动到任意角度时保持定位并平衡，从而可将上述可折叠显示装置作为小型立式显示器使用，用于显示时间日历等，在此不一一举例。
如图6所示，在一实施方式中，所述折叠机构10的端部处设置有滑轮70，所述滑轮70的轴线平行于所述第一方向，所述滑轮70绕其轴向转动连接于所述折叠机构10，所述柔性显示屏20绕过所述滑轮70且与所述滑轮70抵接，即所述柔性支撑板30与所述滑轮70触接。
进一步的，所述折叠机构10的两端均设置有滑轮70。利用滑轮70使柔性支撑板30在折叠机构10上移动时更加顺畅，同时减少柔性显示屏20因滑动摩擦造成的损伤。
本发明的有益效果为：通过采用折叠机构10与柔性显示屏20不贴合的方式，从而使折叠机构10折叠时,柔性显示屏20不必与折叠机构10同时进行折叠，从而防止对柔性显示屏20造成损坏，而利用卷绕机构40对柔性显示屏20进行卷绕收纳，从而防止柔性显示屏20与折叠机构10脱离，同时使柔性显示屏20保持平整状态，防止折叠机构10弯折造成的折叠机构10表面与柔性显示屏20尺寸不匹配的问题。
综上所述，虽然本发明已以优选实施例揭露如上，但上述优选实施例并非用以限制本发明，本领域的普通技术人员，在不脱离本发明的精神和范围内，均可作各种更动与润饰，因此本发明的保护范围以权利要求界定的范围为准。

Claims (11)

  1. 一种可折叠显示装置，其中，所述可折叠显示装置包括：
    折叠机构，其具有上支撑面以及与所述上支撑面背向设置的下支撑面，所述折叠机构包括并排设置且相互连接的第一支座和第二支座，所述第一支座与所述第二支座绕第一方向转动以使所述折叠机构处于折叠或展开状态；
    柔性显示屏，其设置于所述折叠机构上，所述柔性显示屏包括相对设置的第一端和第二端；
    卷绕机构，其设置于所述第一支座或/和所述第二支座上以用于卷绕所述柔性显示屏，当所述第一支座与所述第二支座绕第一方向转动时，所述卷绕机构卷绕所述柔性显示屏或所述卷绕机构释放所述柔性显示屏被卷绕的部分；
    所述柔性显示屏的第一端绕过所述折叠机构的一端且与所述第一支座连接，第二端绕过所述折叠机构的另一端且与所述第二支座连接；所述折叠机构处于展开状态时，所述柔性显示屏位于所述上支撑面和所述下支撑面上；所述折叠机构处于折叠状态时，所述柔性显示屏位于所述下支撑面上。
  2. 根据权利要求1所述的可折叠显示装置，其中，所述卷绕机构设置有一个，所述卷绕机构固定于所述第一支座上，所述柔性显示屏的第一端与所述卷绕机构连接；或者，所述卷绕机构固定于所述第二支座上，所述柔性显示屏的第二端与所述卷绕机构连接。
  3. 根据权利要求1所述的可折叠显示装置，其中，所述卷绕机构设置有两个，一个所述卷绕机构设置于所述第一支座上，另一个所述卷绕机构设置于所述第二支座上，所述柔性显示屏的第一端与一个卷绕机构连接，所述柔性显示屏的第二端与另一个卷绕机构连接。
  4. 根据权利要求1所述的可折叠显示装置，其中，所述柔性显示屏与所述折叠机构之间设置有柔性支撑板，所述柔性显示屏的第一端与所述柔性支撑板的一端固定连接，所述柔性显示屏的第二端与所述柔性支撑板的另一端固定连接。
  5. 根据权利要求4所述的可折叠显示装置，其中，所述柔性显示屏贴附并固定于所述柔性支撑板上。
  6. 根据权利要求4所述的可折叠显示装置，其中，所述卷绕机构包括卷簧，所述卷簧的轴线平行于所述第一方向，所述卷簧的内端与所述折叠机构固定连接，所述卷簧的外端与所述柔性支撑板的端部固定连接，所述第一支座与所述第二支座绕第一方向转动时，所述卷簧提供拉力以使所述柔性支撑板保持与所述折叠机构的端部贴附触接。
  7. 根据权利要求6所述的可折叠显示装置，其中，所述折叠机构内设有空腔，所述卷簧设置于所述空腔中，所述折叠机构上设有开口，所述柔性支撑板的端部穿过所述开口与所述卷簧连接。
  8. 根据权利要求1所述的可折叠显示装置，其中，所述第一支座与所述第二支座通过一铰链铰接。
  9. 根据权利要求8所述的可折叠显示装置，其中，所述铰链为角度定位铰链，以使所述第一支座和所述第二支座绕所述第一方向转动并定位到任意角度。
  10. 根据权利要求8所述的可折叠显示装置，其中，所述铰链设置于所述折叠机构的下支撑面处。
  11. 根据权利要求1所述的可折叠显示装置，其中，所述折叠机构的端部处设置有滑轮，所述滑轮的轴线平行于所述第一方向，所述滑轮绕其轴向转动连接于所述折叠机构，所述柔性显示屏绕过所述滑轮且与所述滑轮抵接。
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