WO2021254048A1 - 柔性显示装置 - Google Patents

柔性显示装置 Download PDF

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Publication number
WO2021254048A1
WO2021254048A1 PCT/CN2021/093637 CN2021093637W WO2021254048A1 WO 2021254048 A1 WO2021254048 A1 WO 2021254048A1 CN 2021093637 W CN2021093637 W CN 2021093637W WO 2021254048 A1 WO2021254048 A1 WO 2021254048A1
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WO
WIPO (PCT)
Prior art keywords
flexible display
display panel
reel
support
display device
Prior art date
Application number
PCT/CN2021/093637
Other languages
English (en)
French (fr)
Inventor
刘君欢
朱红
祝尚杰
Original Assignee
京东方科技集团股份有限公司
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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Application filed by 京东方科技集团股份有限公司 filed Critical 京东方科技集团股份有限公司
Priority to US17/771,889 priority Critical patent/US20220415215A1/en
Publication of WO2021254048A1 publication Critical patent/WO2021254048A1/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
    • 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

Definitions

  • the present disclosure relates to the field of display technology, and in particular to a flexible display device.
  • the support of the uniaxial curling display device and the flexible display panel are fixed together in the unfolded state and the curled state; in the curled state, the bending radius of some positions of the flexible display panel is small, which makes the flexible display panel receive uneven force. It will cause the various functional layers in the flexible display panel to shift, which will affect the display effect.
  • the embodiments of the present disclosure provide a flexible display device with a uniform force on a flexible display panel in a rolled state.
  • a flexible display device including:
  • a casing with an opening provided thereon;
  • the reel is rotatably arranged in the casing
  • a flexible display panel one end of which is connected to the reel, and the opposite end extends out of the housing through an opening;
  • a support piece one end of which is connected to the reel, and the opposite end extends out of the housing through the opening;
  • a separating member which is provided on the housing, and is used to partially separate the flexible display panel and the support member when the flexible display panel and the support member are rolled up;
  • the pressing member is provided on the housing and is used to connect the flexible display panel and the support member when the flexible display panel and the support member are unfolded.
  • the pressing member includes:
  • the first pressing plate is arranged at the opening and abuts against the side of the support member away from the flexible display panel;
  • the second pressing plate is arranged at the opening and opposite to the first pressing plate, and abuts against the side of the flexible display panel away from the supporting member.
  • the separating member is provided in the housing and located between the flexible display panel and the supporting member, and an axial direction of the separating member and the reel is
  • the vertical cross section is set in a wedge shape, and the sharp corner of the wedge shape faces the opening.
  • the support includes:
  • a plurality of supporting plates extending in the axial direction of the reel and arranged in parallel;
  • a plurality of bonding layers is bonded between two adjacent support plates.
  • the cross section of the support plate perpendicular to the axial direction of the reel is set in an isosceles trapezoid, and the length of the side of the isosceles trapezoid close to one side of the flexible display panel
  • the side length is smaller than the side away from the flexible display panel, and the adhesive layer is adhered to the side of the support plate away from the flexible display panel.
  • a cross section of the support plate perpendicular to the axial direction of the reel is set to be a rectangle, and the adhesive layer is located on a side of the support plate close to the flexible display panel. side.
  • the flexible display device further includes:
  • each coil spring is connected to the shaft end of the reel, and the other end is connected to the inner wall of the housing.
  • the flexible display device further includes:
  • a tension spring one end of which is connected to the reel, and the other end of which is connected to the support;
  • the reel is provided with a retracted space, the tension spring is provided in the retracted space, and one end of the support member connected to the tension spring is located in the retracted space.
  • the flexible display panel and the supporting member are connected by a mushroom buckle, a suction cup, an adhesive layer, or van der Waals force.
  • the flexible display panel is bound with a flexible circuit board
  • the flexible circuit board is bound with a driving IC
  • a bracket is provided on the reel
  • the driving IC is fixed on the reel.
  • the flexible circuit board is arranged along the inner cylinder wall of the reel.
  • FIG. 1 is a schematic diagram of the structure of a flexible display device in the related art after being rolled;
  • FIG. 2 is a schematic structural diagram of a rolled state of an exemplary embodiment of the flexible display device of the present disclosure
  • FIG. 3 is a schematic structural diagram of an example embodiment of the flexible display device of the present disclosure in an unfolded state
  • FIG. 4 is a partial structural diagram of the support member and the flexible display panel in a rolled state
  • Fig. 5 is a partial structural diagram of the support and the flexible display panel in an unfolded state.
  • the flexible display panel 3 and the supporting member 4 are always fixed together. After the flexible display panel 3 is rolled, the supporting member 4 will squeeze the flexible display panel 3 between the supporting members 4, resulting in The squeezed flexible display panel 3 has greater strain and stress, and will cause the stress neutral layer of the flexible display panel 3 to shift, making the light-emitting layer more stressful, and ultimately affecting the display effect.
  • the flexible display device may include a housing 1, a reel 2, a flexible display panel 3, a support 4, a separating member 5, and a pressing member. 6;
  • the casing 1 is provided with an opening; the reel 2 is rotatably arranged in the casing 1; one end of the flexible display panel 3 is connected to the reel 2, and the opposite end extends out of the casing 1 through the opening;
  • One end of the supporting member 4 is connected to the reel 2 and the opposite end extends out of the housing 1 through the opening;
  • the separating member 5 is provided on the housing 1 and is used for connecting the flexible display panel 3 and When the supporting member 4 is rolled up, the flexible display panel 3 and the supporting member 4 are partially separated;
  • the pressing member 6 is provided on the housing 1 for unfolding the flexible display panel 3 and the supporting member 4 At this time, the flexible display panel 3 and the support 4 are connected.
  • the separating member 5 can partially separate the flexible display panel 3 and the supporting member 4 when the flexible display panel 3 and the supporting member 4 are rolled up, that is, the flexible display panel 3 and the supporting member 4 on the side away from the opening of the separating member 5 are separated,
  • the flexible display panel 3 and the supporting member 4 on the side of the separating member 5 near the opening are still connected, so that the flexible display panel 3 and the supporting member 4 can be rolled separately after being rolled, and the flexible display panel 3 can be rolled freely, and the flexible display
  • the radial pressure and axial tension of the panel 3 are small, and the stress is small, and there will be no stress concentration due to local step differences, so as to avoid the deviation of the functional layers in the flexible display panel 3 caused by the uneven force of the flexible display panel 3 , It is convenient to adjust the display function layer of the flexible display panel 3 as a stress-neutral layer, which protects the display function layer and does not affect the display effect; through the pressing member 6 the flexible display panel 3 and the support member 4 can be unfolded
  • the housing 1 may be configured as a cylindrical shape, and an opening is provided on the cylindrical surface of the housing 1.
  • the opening is arranged along the axial direction of the housing 1, and the width of the opening is larger than the thickness of the flexible display panel 3 and the thickness of the support 4.
  • the sum of the thicknesses, the length of the opening is greater than the length of the support 4, and the length of the support 4 is greater than or equal to the length of the flexible display panel 3, so that the support 4 and the flexible display panel 3 can be unfolded or rolled smoothly through the opening.
  • the housing 1 can also be configured as a square column or an elliptical column or the like.
  • the pressing member 6 may include a first pressing plate 61 and a second pressing plate 62; the first pressing plate 61 is provided at the opening, the first pressing plate 61 is arranged along the length direction of the opening, and the length of the first pressing plate 61 and The length of the opening is the same.
  • the first pressing plate 61 is arc-transitionally connected with the housing.
  • the second pressing plate 62 is arranged at the opening, the second pressing plate 62 is arranged along the length direction of the opening, and the length of the second pressing plate 62 is the same as the length of the opening.
  • the second pressure plate 62 is arc-transitionally connected with the outer shell.
  • the first pressure plate 61 abuts against the side of the support 4 away from the flexible display panel 3; the side of the first pressure plate 61 that abuts the support 4 is set as a plane.
  • the second pressure plate 62 abuts against the side of the flexible display panel 3 away from the support 4, and the side of the second pressure plate 62 that abuts the flexible display panel 3 is set as a plane.
  • the so-called abutment is not only contact, but also pressure between the two contact surfaces that abut each other, that is, the first pressure plate 61 is in contact with one side of the support 4, and the pressure plate 61 exerts pressure on the support 4; the second pressure plate 62 It is in contact with one side of the flexible display panel 3, and the second pressing plate 62 exerts pressure on the flexible display panel 3.
  • the second pressing plate 62 is arranged opposite to the first pressing plate 61, and the width of the gap between the second pressing plate 62 and the first pressing plate 61 is equal to or slightly smaller than the sum of the thickness of the flexible display panel 3 and the thickness of the support 4, so that the first pressing plate 61 and the second pressing plate 62 can press the flexible display panel 3 and the supporting member 4, so that the flexible display panel 3 and the supporting member 4 can be pressed together when they are unfolded.
  • the pressing member 6 may include a pressing plate and a scraper.
  • the pressing plate may have the same structure as the first pressing plate 61.
  • the cross section of the scraper can be set in a tongue shape, and the material can be rubber, plastic, and other materials with certain flexibility and elasticity.
  • the separating element 5 is arranged in the housing 1, and the separating element 5 is arranged in a long rod shape.
  • the separating piece 5 is located between the flexible display panel 3 and the supporting piece 4.
  • the cross section of the separating piece 5 perpendicular to the axial direction of the reel 2 is set in a wedge shape, and the sharp corner of the wedge faces the opening; and the sharp corner may be provided with a round chamfer, Avoid sharp corners from causing scratches on the flexible display panel 3 and the support 4.
  • the separating member 5 may be provided in a plate shape, and one side of the plate contacting the flexible display panel 3 and the supporting member 4 is set to be rounded and chamfered.
  • the supporting member 4 may include a plurality of supporting plates 41 and a plurality of adhesive layers 42, which extend in the axial direction of the reel 2 and are arranged in parallel; each adhesive layer 42 is bonded to Between two adjacent support plates 41, a plurality of support plates 41 can form a plane to support the flexible display panel 3.
  • the supporting plate 41 is arranged in a long strip shape.
  • the length of the supporting plate 41 in the axial direction of the reel 2 is the same as the length of the supporting member 4 in the axial direction of the reel 2, and the sum of the widths of the plurality of supporting plates 41 is the supporting member.
  • the width of 4 can be set as the length in the axial direction of the reel 2 for the supporting plate 41 and the supporting member 4.
  • the cross-section of the support plate 41 perpendicular to the axial direction of the reel 2 is set in an isosceles trapezoid, and the side of the isosceles trapezoid near the flexible display panel 3 is shorter than the side far away from the flexible display panel 3.
  • the adhesive layer 42 is adhered to the side of the support plate 41 away from the flexible display panel 3.
  • recesses are also provided on both long sides of the support plate 41 on the side away from the flexible display panel 3, and the adhesive layer 42 can be a black tape. The black tape is adhered in the recess to connect two adjacent support plates. 41 connected together.
  • the support 4 since the cross-sectional shape of the support plate 41 is an isosceles trapezoid, after the support 4 is separated from the flexible display panel 3, the support 4 is curled to form a fixed shape under the constraint of its own trapezoidal structure, and the flexible display panel 3 is The self-fixed support members 4 are free to curl between them, and the curled and self-fixed support members 4 can protect the internal flexible display panel 3.
  • the flexible display panel 3 and the supporting member 4 are bonded by the weakly adhesive second adhesive layer 82 and the weakly adhesive first adhesive layer 81; and the weakly adhesive adhesive layer can be repeated multiple times.
  • Adhesive materials can be bonded to each other when pressed, and the two are separated after passing through the separating member 5. It is also possible to provide a microstructure capable of generating van der Waals force on the contact surface between the flexible display panel 3 and the supporting member 4, so that the flexible display panel 3 and the supporting member 4 are adhered by van der Waals force.
  • the flexible display panel 3 and the supporting member 4 can also be connected by mushroom buckles, suction cups, and the like.
  • the supporting member 4 is expanded to form a plane, the first adhesive layer 81 on the supporting member 4 and the second adhesive layer 82 on the flexible display panel 3 are adhesively connected as a whole, and the supporting member 4 is a flexible display panel.
  • 3 Provide support to enable the flexible display panel 3 to achieve a flat display.
  • the structure of the supporting member 4 is not limited to the above description.
  • the cross section of the supporting plate 41 perpendicular to the axial direction of the reel 2 can be set to a rectangle, and the adhesive layer 42 is located on the side of the supporting plate 41 close to the flexible display panel 3.
  • Depressions can be provided on the long sides of the support plate 41 on both sides of the side close to the flexible display panel 3, the adhesive layer 42 can be a black tape, and the black tape is adhered in the recesses to connect two adjacent support plates 41 to each other.
  • the thickness of the black tape can be the same as the depth of the recessed portion to provide a flat supporting surface for the flexible display panel 3.
  • the reel 2 may be configured as a semi-cylindrical shape, that is, the reel 2 includes a semi-circular inner cylinder wall and a semi-circular outer cylinder wall, and two are connected between the inner cylinder wall and the outer cylinder wall. Radial plane. End plates are provided at the two shaft ends of the semi-cylindrical shape, and the end plates are set in a semicircular shape or can be set in a circular shape.
  • a bracket 9 is arranged in the semi-cylinder of the reel 2, and a driver IC 31 is fixed on the bracket 9.
  • the driver IC 31 is bound with a flexible circuit board 32, and the flexible circuit board 32 is arranged along the inner wall of the semi-cylinder.
  • the flexible circuit board 32 is bound to the flexible display panel 3.
  • the flexible display panel 3 and the support 4 protrude from the same side of the semi-cylinder.
  • the flexible display device further includes two coil springs 10, one end of the coil spring 10 is connected to the shaft end of the reel 2 (that is, the center position of the end plate), and the other end of the coil spring 10 is connected to the housing 1 Inner wall.
  • the support 4 and the flexible display panel 3 are stretched outwards, the support 4 and the flexible display panel 3 are unfolded, and the support 4 and the flexible display panel 3 are glued together under the squeezing action of the pressing member 6.
  • the support 4 and the flexible display panel 3 drive the reel 2 to rotate, the coil spring 10 is fixed to the fixed end of the housing 1, and the end fixed to the reel 2 also rotates, so that the coil spring 10 is torsionally deformed; after the flexible display panel 3 is used, , Release the support 4 and the flexible display panel 3, the curling spring 10 rotates back to its original state under the action of torsion force, the curling spring 10 drives the reel 2 to reverse rotation, and the reel 2 drives the support 4 and the flexible display panel 3 to reverse When rotating, the support 4 and the flexible display panel 3 are retracted into the housing 1. When the housing 1 is entered, the support 4 is separated from the flexible display panel 3 under the separation action of the separator 5, and the separated support 4 and the flexible display The panel 3 is respectively rolled in the housing 1 to realize the winding of the support 4 and the flexible display panel 3.
  • reel 2 and the housing 1 can also be connected through a bearing.
  • a shaft handle can be provided outside the housing. The shaft handle is fixedly connected to the reel 2. The staff drives the reel 2 to rotate forward or reverse through the shaft handle to realize the support 4 and The winding and unwinding of the flexible display panel 3.
  • the flexible display device may further include a tension spring 7.
  • One end of the tension spring 7 is connected to the reel 2, the other end of the tension spring 7 is connected to the support 4, and the tension spring 7 is directed to the support 4 4 Apply a pulling force to pull the support 4 into the housing.
  • the reel 2 is also provided with a retracted space 21, the retracted space 21 is provided on the wall of the semi-cylinder, starting from the radial plane of the semi-cylinder and extending in the circumferential direction of the cylinder wall into an arc shape to match the curling After the support 4.
  • the thickness of the barrel wall of the reel 2 in the portion where the constricted space 21 is provided is greater than the thickness of the barrel wall in the portion where the constricted space 21 is not provided.
  • the depth of the retracted space 21 is greater than the length of the tension spring 7, and the length of the retracted space 21 in the axial direction of the reel 2 is greater than or equal to the length of the support 4 in the axial direction of the reel 2, so that the retracted space 21 One end of the support 4 can be accommodated inside.
  • the extension spring 7 is arranged in the retracted space 21, one end of the extension spring 7 is fixed to the bottom of the retracted space 21, the other end of the extension spring 7 is fixed to one end of the support 4, and the support 4 is The connected end of the spring 7 is located in the retracted space 21. After the flexible display device is unfolded, the longer part of the support 4 can extend into the retracted space 21.
  • the terms “a”, “an”, “the” and “said” are used to indicate the presence of one or more elements/components/etc.; the terms “including”, “including” and “have” are used to It means open-ended inclusion and means that in addition to the listed elements/components/etc., there may be other elements/components/etc.; the terms “first”, “second” and “third” “, etc. are only used as markers, not as a restriction on the number of objects.

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

Abstract

一种柔性显示装置。柔性显示装置包括外壳(1)、卷轴(2)、柔性显示面板(3)、支撑件(4)、分离件(5)和压合件(6)；外壳(1)上设置有开口；卷轴(2)可转动的设于外壳(1)内；柔性显示面板(3)的一端连接于卷轴(2)，相对的另一端通过开口伸出至外壳(1)外；支撑件(4)的一端连接于卷轴(2)，相对的另一端通过开口伸出至外壳(1)外；分离件(5)设于外壳(1)上，用于在柔性显示面板(3)和支撑件(4)卷收时将柔性显示面板(3)和支撑件(4)部分分离；压合件(6)设于外壳(1)上，用于在柔性显示面板(3)和支撑件(4)展开时将柔性显示面板(3)和支撑件(4)连接。柔性显示面板(3)可以自由卷曲，保护显示功能层，不会影响显示效果。

Description

柔性显示装置
交叉引用
本公开要求于2020年6月16日提交的申请号为202010549121.7名称为“柔性显示装置”的中国专利申请的优先权，该中国专利申请的全部内容通过引用全部并入本文。
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
目前，单轴卷曲显示装置的支撑件与柔性显示面板在展开状态和卷曲状态都固定在一起；在卷曲状态下，柔性显示面板的部分位置弯曲半径较小，使柔性显示面板受力不均，会导致柔性显示面板中的各功能层产生偏移，影响显示效果。
发明内容
本公开实施例提供一种卷曲状态下柔性显示面板受力均匀的柔性显示装置。
本公开的额外方面和优点将部分地在下面的描述中阐述，并且部分地将从描述中变得显然，或者可以通过本公开的实践而习得。
根据本公开的一个方面，提供一种柔性显示装置，包括：
外壳，其上设置有开口；
卷轴，可转动的设于所述外壳内；
柔性显示面板，其一端连接于所述卷轴，相对的另一端通过开口伸出至所述外壳外；
支撑件，其一端连接于所述卷轴，相对的另一端通过开口伸出至所述外壳外；
分离件，设于所述外壳上，用于在所述柔性显示面板和所述支撑件卷收时将所述柔性显示面板和所述支撑件部分分离；
压合件，设于所述外壳上，用于在所述柔性显示面板和所述支撑件展开时将所述柔性显示面板和所述支撑件连接。
在本公开的一种示例性实施例中，所述压合件包括：
第一压板，设于所述开口处，并与所述支撑件的远离所述柔性显示面板的一面抵靠；
第二压板，设于所述开口处，并与所述第一压板相对设置，且与所述柔性显示面板的远离所述支撑件的一面抵靠。
在本公开的一种示例性实施例中，所述分离件设于所述外壳内，并位于所述柔性显示面板和所述支撑件之间，所述分离件的与所述卷轴的轴向垂直的截面设置为楔形，所述楔形的尖角朝向所述开口。
在本公开的一种示例性实施例中，所述支撑件包括：
多个支撑板，在所述卷轴的轴向上延伸且平行设置；
多个粘接层，各个所述粘接层粘接于相邻两个所述支撑板之间。
在本公开的一种示例性实施例中，所述支撑板的与所述卷轴的轴向垂直的截面设置为等腰梯形，所述等腰梯形的靠近所述柔性显示面板的一边的边长小于远离所述柔性显示面板的一边的边长，所述粘接层粘接于所述支撑板的远离所述柔性显示面板的一侧。
在本公开的一种示例性实施例中，所述支撑板的与所述卷轴的轴向垂直的截面设置为矩形，所述粘接层位于所述支撑板的靠近所述柔性显示面板的一侧。
在本公开的一种示例性实施例中，所述柔性显示装置还包括：
两个卷曲弹簧，各个所述卷曲弹簧的一端连接于所述卷轴的轴端，另一端连接于所述外壳的内壁。
在本公开的一种示例性实施例中，所述柔性显示装置还包括：
拉伸弹簧，其一端连接于所述卷轴，另一端连接于所述支撑件；
所述卷轴上设置有内缩空间，所述拉伸弹簧设于所述内缩空间内，所述支撑件的与所述拉伸弹簧连接的一端位于所述内缩空间内。
在本公开的一种示例性实施例中，所述柔性显示面板与所述支撑件之间通过蘑菇头搭扣、吸盘、胶层或范德华力连接。
在本公开的一种示例性实施例中，所述柔性显示面板与柔性电路板 绑定，所述柔性电路板与驱动IC绑定，所述卷轴上设置有支架，所述驱动IC固定于所述支架，所述柔性电路板沿所述卷轴的内筒壁布置。
附图说明
通过参照附图详细描述其示例实施方式，本公开的上述和其它特征及优点将变得更加明显。
图1是相关技术中柔性显示装置卷曲后的结构示意图；
图2是本公开柔性显示装置一示例实施方式卷曲状态的结构示意图；
图3是本公开柔性显示装置一示例实施方式展开状态的结构示意图；
图4是支撑件和柔性显示面板处于卷曲状态的局部结构示意图；
图5是支撑件和柔性显示面板处于展开状态的局部结构示意图。
图中主要元件附图标记说明如下：
1、外壳；
2、卷轴；21、内缩空间；
3、柔性显示面板；31、驱动IC；32、柔性电路板；
4、支撑件；41、支撑板；42、粘接层；
5、分离件；
6、压合件；61、第一压板；62、第二压板；
7、拉伸弹簧；
81、第一胶层；82、第二胶层；
9、支架；10、卷曲弹簧。
具体实施方式
现在将参考附图更全面地描述示例实施方式。然而，示例实施方式能够以多种形式实施，且不应被理解为限于在此阐述的实施方式；相反，提供这些实施方式使得本公开将全面和完整，并将示例实施方式的构思全面地传达给本领域的技术人员。图中相同的附图标记表示相同或类似的结构，因而将省略它们的详细描述。
参照图1所示，在相关技术中，柔性显示面板3与支撑件4一直固定在一起，柔性显示面板3卷曲后，支撑件4会挤压位于支撑件4之间的柔 性显示面板3，导致被挤压的柔性显示面板3应变和应力较大，而且会导致柔性显示面板3的应力中性层偏移，使得发光层应力较大，最终影响显示效果。
本示例实施方式首先提供了一种柔性显示装置，参照图2和图3所示，该柔性显示装置可以包括外壳1、卷轴2、柔性显示面板3、支撑件4、分离件5和压合件6；外壳1上设置有开口；卷轴2可转动的设于所述外壳1内；柔性显示面板3的一端连接于所述卷轴2，相对的另一端通过开口伸出至所述外壳1外；支撑件4的一端连接于所述卷轴2，相对的另一端通过开口伸出至所述外壳1外；分离件5设于所述外壳1上，用于在所述柔性显示面板3和所述支撑件4卷收时将所述柔性显示面板3和所述支撑件4部分分离；压合件6设于所述外壳1上，用于在所述柔性显示面板3和所述支撑件4展开时将所述柔性显示面板3和所述支撑件4连接。
通过分离件5能够在柔性显示面板3和支撑件4卷收时将柔性显示面板3和支撑件4部分分离，即在分离件5的远离开口一侧的柔性显示面板3和支撑件4分离，在分离件5的靠近开口一侧的柔性显示面板3和支撑件4任然是连接的，使柔性显示面板3和支撑件4收卷后能够分别卷曲，柔性显示面板3可以自由卷曲，柔性显示面板3的径向压力和轴向拉力较小，应力较小，不会因为局部段差造成应力集中，避免柔性显示面板3受力不均而导致的柔性显示面板3中的各功能层产生偏移，方便调整柔性显示面板3的显示功能层为应力中性层，保护显示功能层，不会影响显示效果；通过压合件6能够在柔性显示面板3和支撑件4展开时将柔性显示面板3和支撑件4连接，即在壳体外的柔性显示面板和支撑件连接，在柔性显示面板3和支撑件4展开后，使支撑件4为柔性显示面板3提供支撑，实现平坦展示。
在本示例实施方式中，外壳1可以设置为圆柱形，在外壳1的柱面上设置有开口，开口沿外壳1的轴向设置，开口的宽度大于柔性显示面板3的厚度和支撑件4的厚度之和，开口的长度大于支撑件4的长度，支撑件4的长度大于或等于柔性显示面板3的长度，使支撑件4和柔性显示面板3顺利通过开口进行展开或卷收。另外，外壳1还可以设置为方形柱或椭圆形柱等等。
在本示例实施方式中，压合件6可以包括第一压板61和第二压板62；第一压板61设于开口处，第一压板61沿开口的长度方向设置，第一压板61的长度和开口的长度相同。第一压板61与外壳圆弧过渡连接。第二压板62设于开口处，第二压板62沿开口的长度方向设置，第二压板62的长度和开口的长度相同。第二压板62与外壳圆弧过渡连接。第一压板61与支撑件4的远离柔性显示面板3的一面抵靠；第一压板61的与支撑件4抵靠的一面设置为平面。第二压板62与柔性显示面板3的远离支撑件4的一面抵靠，第二压板62的与柔性显示面板3抵靠的一面设置为平面。所谓抵靠不仅仅是接触，而且是相互抵靠的两接触面之间有压力，即第一压板61与支撑件4的一面接触，且压板61对支撑件4施有压力；第二压板62与柔性显示面板3的一面接触，且第二压板62对柔性显示面板3施有压力。第二压板62与第一压板61相对设置，第二压板62与第一压板61之间的间隙的宽度等于或稍小于柔性显示面板3的厚度和支撑件4的厚度之和，使第一压板61和第二压板62能够对柔性显示面板3和支撑件4施压，使柔性显示面板3和支撑件4在展开时能够压合为一体。可以理解的是，在本公开的其他示例实施方式中，压合件6可以包括压板和刮板，压板可以与第一压板61的结构相同，在压板的相对位置设置刮板，刮板设于开口处，刮板的截面可以设置为舌状，材质可以为橡胶、塑料等具有一定柔性和弹性的材质。
在本示例实施方式中，分离件5设于外壳1内，分离件5设置为长杆状，其一端连接于外壳1的一端内壁，另一端连接于外壳1的另一端内壁。分离件5位于柔性显示面板3和支撑件4之间，分离件5的与卷轴2的轴向垂直的截面设置为楔形，楔形的尖角朝向开口；且该尖角可以设置有圆倒角，避免尖角对柔性显示面板3和支撑件4造成划伤。在本公开的其他示例实施方式中，分离件5可以设置为板状，该板的接触柔性显示面板3和支撑件4的一边设置为圆倒角。
在本示例实施方式中，支撑件4可以包括多个支撑板41和多个粘接层42，多个支撑板41在卷轴2的轴向上延伸且平行设置；各个粘接层42粘接于相邻两个支撑板41之间，使多个支撑板41能够形成一平面以支撑柔性显示面板3。支撑板41设置为长条状，支撑板41的在卷轴2的轴向 上的长度和支撑件4的在卷轴2的轴向上的长度相同，多个支撑板41的宽度之和就是支撑件4的宽度，对于支撑板41和支撑件4可以设定在卷轴2的轴向上的尺寸为长度。
参照图4和图5所示，支撑板41的与卷轴2的轴向垂直的截面设置为等腰梯形，等腰梯形的靠近柔性显示面板3的一边的边长小于远离柔性显示面板3的一边的边长，粘接层42粘接于支撑板41的远离柔性显示面板3的一侧。具体地，在支撑板41的远离柔性显示面板3的一面的两侧长边部还设置有凹陷部，粘接层42可以为黑色胶带，黑色胶带粘接在凹陷部内将相邻两个支撑板41连接在一起。
参照图4所示，由于支撑板41的截面形状为等腰梯形，在支撑件4与柔性显示面板3分离后，支撑件4在本身梯形结构的约束下卷曲形成固定形状，柔性显示面板3在自固定的支撑件4之间自由卷曲，卷曲自固定的支撑件4可以保护内部柔性显示面板3。
在本示例实施方式中，柔性显示面板3和支撑件4之间通过弱粘性的第二胶层82和弱粘性的第一胶层81粘接；且该弱粘性的胶层为可多次重复黏贴材料，受压时可互相粘接，通过分离件5后两者分离。还可以在柔性显示面板3和支撑件4之间的接触面设置能够产生范德华力的微结构，使柔性显示面板3和支撑件4通过范德华力粘附。当然，柔性显示面板3和支撑件4也可以通过蘑菇头搭扣、吸盘等等连接。
参照图5所示，支撑件4展开后形成一个平面，支撑件4上的第一胶层81与柔性显示面板3上的第二胶层82粘接连接为一体，支撑件4为柔性显示面板3提供支撑使柔性显示面板3实现平坦展示。
当然，支撑件4的结构不限于上述说明，例如，支撑板41的与卷轴2的轴向垂直的截面可以设置为矩形，粘接层42位于支撑板41的靠近柔性显示面板3的一侧。可以在支撑板41的靠近柔性显示面板3的一面的两侧长边部设置有凹陷部，粘接层42可以为黑色胶带，黑色胶带粘接在凹陷部内将相邻两个支撑板41连接在一起，黑色胶带粘的厚度可以与凹陷部的深度相同，为柔性显示面板3提供平整的支撑面。
在本示例实施方式中，卷轴2可以设置为半圆筒形，即卷轴2包括半圆形的内筒壁和半圆形的外筒壁，在内筒壁和外筒壁之间连接有两个径向 平面。在半圆筒形两轴端设置有端板，端板设置为半圆形，也可以设置为圆形。在卷轴2的半圆筒内设置有支架9，在支架9上固定有驱动IC31，驱动IC31与柔性电路板32绑定，柔性电路板32沿半圆筒的内筒壁布置。柔性电路板32与柔性显示面板3绑定。柔性显示面板3与支撑件4从半圆筒的同一侧伸出。
在本示例实施方式中，柔性显示装置还包括两个卷曲弹簧10，卷曲弹簧10的一端连接于卷轴2的轴端(即端板的中心位置)，卷曲弹簧10的另一端连接于外壳1的内壁。在用力向外拉伸支撑件4和柔性显示面板3时，支撑件4和柔性显示面板3展开，并且在压合件6的挤压作用下支撑件4和柔性显示面板3粘接为一体，支撑件4和柔性显示面板3带动卷轴2旋转，卷曲弹簧10与外壳1固定的一端固定，与卷轴2固定的一端也发生旋转，使卷曲弹簧10发生扭转变形；在使用完成柔性显示面板3后，放开支撑件4和柔性显示面板3，卷曲弹簧10在扭转力的作用下旋转回复原状，卷曲弹簧10带动卷轴2进行反向旋转，卷轴2带动支撑件4和柔性显示面板3进行反向旋转，支撑件4和柔性显示面板3缩回至外壳1内，在进入外壳1时，在分离件5的分离作用下支撑件4与柔性显示面板3分离，分离后的支撑件4和柔性显示面板3在外壳1内各自进行卷曲，实现支撑件4和柔性显示面板3的收卷。
另外，卷轴2与外壳1也可以通过轴承连接，可以在外壳外设置转轴把手，转轴把手与卷轴2固定连接，工作人员通过转轴把手带动卷轴2进行正向或反向旋转，实现支撑件4和柔性显示面板3的收卷和展开。
在本示例实施方式中，柔性显示装置还可以包括拉伸弹簧7，拉伸弹簧7的一端连接于卷轴2，拉伸弹簧7的另一端连接于支撑件4，拉伸弹簧7一直向支撑件4施加拉力，将支撑件4向壳体内牵拉。具体地，在卷轴2上还设置有内缩空间21，内缩空间21设置在半圆筒的筒壁上，从半圆筒的径向平面开始沿筒壁周向延伸为圆弧形，以配合卷曲后的支撑件4。而且卷轴2在设置内缩空间21部分的筒壁厚度大于未设置内缩空间21部分的筒壁厚度。内缩空间21的深度大于拉伸弹簧7的长度，内缩空间21的在卷轴2的轴向上的长度大于或等于支撑件4的在卷轴2的轴向上的长度，使内缩空间21内能够容纳支撑件4的一端部。拉伸弹簧7设于内缩 空间21内，拉伸弹簧7的一端固定于内缩空间21的底部，拉伸弹簧7的另一端固定于支撑件4的一端，且支撑件4的与拉伸弹簧7连接的一端位于内缩空间21内。在该柔性显示装置展开后，较长部分的支撑件4能够伸入内缩空间21。
上述所描述的特征、结构或特性可以以任何合适的方式结合在一个或更多实施方式中，如有可能，各实施例中所讨论的特征是可互换的。在上面的描述中，提供许多具体细节从而给出对本公开的实施方式的充分理解。然而，本领域技术人员将意识到，可以实践本公开的技术方案而没有所述特定细节中的一个或更多，或者可以采用其它的方法、组件、材料等。在其它情况下，不详细示出或描述公知结构、材料或者操作以避免模糊本公开的各方面。
虽然本说明书中使用相对性的用语，例如“上”“下”来描述图标的一个组件对于另一组件的相对关系，但是这些术语用于本说明书中仅出于方便，例如根据附图中所述的示例的方向。能理解的是，如果将图标的装置翻转使其上下颠倒，则所叙述在“上”的组件将会成为在“下”的组件。当某结构在其它结构“上”时，有可能是指某结构一体形成于其它结构上，或指某结构“直接”设置在其它结构上，或指某结构通过另一结构“间接”设置在其它结构上。
本说明书中，用语“一个”、“一”、“该”和“所述”用以表示存在一个或多个要素/组成部分/等；用语“包含”、“包括”和“具有”用以表示开放式的包括在内的意思并且是指除了列出的要素/组成部分/等之外还可存在另外的要素/组成部分/等；用语“第一”、“第二”和“第三”等仅作为标记使用，不是对其对象的数量限制。
应可理解的是，本公开不将其应用限制到本说明书提出的部件的详细结构和布置方式。本公开能够具有其他实施方式，并且能够以多种方式实现并且执行。前述变形形式和修改形式落在本公开的范围内。应可理解的是，本说明书公开和限定的本公开延伸到文中和/或附图中提到或明显的两个或两个以上单独特征的所有可替代组合。所有这些不同的组合构成本公开的多个可替代方面。本说明书所述的实施方式说明了已知用于实现本公开的最佳方式，并且将使本领域技术人员能够利用本公开。

Claims (10)

  1. 一种柔性显示装置，其中，包括：
    外壳，其上设置有开口；
    卷轴，可转动的设于所述外壳内；
    柔性显示面板，其一端连接于所述卷轴，相对的另一端通过开口伸出至所述外壳外；
    支撑件，其一端连接于所述卷轴，相对的另一端通过开口伸出至所述外壳外；
    分离件，设于所述外壳上，用于在所述柔性显示面板和所述支撑件卷收时将所述柔性显示面板和所述支撑件部分分离；
    压合件，设于所述外壳上，用于在所述柔性显示面板和所述支撑件展开时将所述柔性显示面板和所述支撑件连接。
  2. 根据权利要求1所述的柔性显示装置，其中，所述压合件包括：
    第一压板，设于所述开口处，并与所述支撑件的远离所述柔性显示面板的一面抵靠；
    第二压板，设于所述开口处，并与所述第一压板相对设置，且与所述柔性显示面板的远离所述支撑件的一面抵靠。
  3. 根据权利要求1所述的柔性显示装置，其中，所述分离件设于所述外壳内，并位于所述柔性显示面板和所述支撑件之间，所述分离件的与所述卷轴的轴向垂直的截面设置为楔形，所述楔形的尖角朝向所述开口。
  4. 根据权利要求1所述的柔性显示装置，其中，所述支撑件包括：
    多个支撑板，在所述卷轴的轴向上延伸且平行设置；
    多个粘接层，各个所述粘接层粘接于相邻两个所述支撑板之间。
  5. 根据权利要求4所述的柔性显示装置，其中，所述支撑板的与所述卷轴的轴向垂直的截面设置为等腰梯形，所述等腰梯形的靠近所述柔性显示面板的一边的边长小于远离所述柔性显示面板的一边的边长，所述粘接层粘接于所述支撑板的远离所述柔性显示面板的一侧。
  6. 根据权利要求4所述的柔性显示装置，其中，所述支撑板的与所 述卷轴的轴向垂直的截面设置为矩形，所述粘接层位于所述支撑板的靠近所述柔性显示面板的一侧。
  7. 根据权利要求1所述的柔性显示装置，其中，所述柔性显示装置还包括：
    两个卷曲弹簧，各个所述卷曲弹簧的一端连接于所述卷轴的轴端，另一端连接于所述外壳的内壁。
  8. 根据权利要求1所述的柔性显示装置，其中，所述柔性显示装置还包括：
    拉伸弹簧，其一端连接于所述卷轴，另一端连接于所述支撑件；
    所述卷轴上设置有内缩空间，所述拉伸弹簧设于所述内缩空间内，所述支撑件的与所述拉伸弹簧连接的一端位于所述内缩空间内。
  9. 根据权利要求1所述的柔性显示装置，其中，所述柔性显示面板与所述支撑件之间通过蘑菇头搭扣、吸盘、胶层或范德华力连接。
  10. 根据权利要求1所述的柔性显示装置，其中，所述柔性显示面板与柔性电路板绑定，所述柔性电路板与驱动IC绑定，所述卷轴上设置有支架，所述驱动IC固定于所述支架，所述柔性电路板沿所述卷轴的内筒壁布置。
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CN111833740B (zh) * 2020-06-16 2022-08-19 京东方科技集团股份有限公司 柔性显示装置
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