WO2019056321A1 - 弯折结构及弯折显示装置 - Google Patents

弯折结构及弯折显示装置 Download PDF

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Publication number
WO2019056321A1
WO2019056321A1 PCT/CN2017/103014 CN2017103014W WO2019056321A1 WO 2019056321 A1 WO2019056321 A1 WO 2019056321A1 CN 2017103014 W CN2017103014 W CN 2017103014W WO 2019056321 A1 WO2019056321 A1 WO 2019056321A1
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WO
WIPO (PCT)
Prior art keywords
rotating shaft
flexible
flexible board
flexible plate
bending structure
Prior art date
Application number
PCT/CN2017/103014
Other languages
English (en)
French (fr)
Inventor
张强
陈松亚
Original Assignee
深圳市柔宇科技有限公司
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.)
Filing date
Publication date
Application filed by 深圳市柔宇科技有限公司 filed Critical 深圳市柔宇科技有限公司
Priority to PCT/CN2017/103014 priority Critical patent/WO2019056321A1/zh
Priority to CN201780096683.7A priority patent/CN111316007B/zh
Publication of WO2019056321A1 publication Critical patent/WO2019056321A1/zh

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Classifications

    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16CSHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
    • F16C11/00Pivots; Pivotal connections
    • F16C11/04Pivotal connections

Definitions

  • the present invention relates to a flip connection structure, and more particularly to a bent structure and a bent display device.
  • common reels include: mobile phone hinge (flip or rotary screen mobile phone;); notebook computer shaft; portable DVD reel; LED table lamp shaft; LCD display shaft; GPS and other car bracket shaft.
  • a common feature of such a rotating shaft is that the rotating shaft length of the rotating shaft is longer than the rotating shaft of the flattened state, and is applied to a flexible display device, which causes the display to be pulled during the bending process. Crack, display failure.
  • the arc length of the rotating shaft of the existing rotating shaft is longer than the length of the rotating shaft of the flattened state. If applied to a flexible display device, the display screen is pulled and the display function is disabled.
  • the present invention is intended to solve the problem of a flexible screen mobile terminal in which a flexible screen is disposed outside the mobile terminal, and it is necessary to cope with the problem of length change caused by hinge closure and opening.
  • the technical problem to be solved by the present invention is to provide an improved bending structure and a bending display device.
  • the technical solution adopted by the present invention to solve the technical problem thereof is: constructing a bending structure including a bendable first flexible board, at least two rotating shafts disposed side by side on the first flexible board, and setting a second flexible board bendable on a side of the rotating shaft opposite to the first flexible board;
  • the rotating shaft is movably connected to the second flexible board
  • the rotating shaft is provided with a guiding mechanism connected to the second flexible plate, and the guiding mechanism is slidably engaged with the second flexible plate in an arrangement direction of the rotating shaft;
  • a gap between adjacent faces of two adjacent rotating shafts is gradually increased from one side of the first flexible board toward the side of the second flexible board so as to be integrally toward the side of the second flexible board Bend.
  • the present invention also contemplates a bent display device including the bent structure and a flexible display module disposed outside the first flexible board.
  • the bending structure and the bending display device embodying the present invention have the following beneficial effects: When the bending structure is bent, the first flexible board side does not pull, and the length can be kept unchanged, At the same time, it is ensured that the flexible display module bonded thereto is not damaged by stretching, so that the second flexible board can move relative to the rotating shaft, but does not generate compression and stretching on the side of the second flexible board. , to ensure the stability of the structure.
  • the maximum gap difference between adjacent faces of two adjacent rotating shafts may correspondingly adjust the angle and radius of the bending.
  • FIG. 1 is a perspective structural view of a bending display device in an embodiment of the present invention.
  • FIG. 2 is a schematic exploded view of the bent display device of FIG. 1;
  • FIG. 3 is an exploded perspective view of the first flexible board and the rotating shaft of FIG. 2;
  • FIG. 4 is an assembled view of the first flexible board and the rotating shaft of FIG. 3;
  • FIG. 5 is an assembled view of the first flexible board and a portion of the rotating shaft of FIG. 3;
  • FIG. 6 is a perspective view of the bent display device of FIG. 1 from a side of a second flexible board;
  • FIG. 7 is a partial cross-sectional view showing the bending display device of FIG. 6 corresponding to the display guide mechanism;
  • FIG. 8 is a partial cross-sectional view showing the bent structure of the bending display device of FIG. 7 after being bent;
  • FIG. 9 is a schematic view of the two rotating shafts arranged side by side in FIG. 3;
  • FIG. 10 is a partial cross-sectional view showing the bending display device of FIG. 6 corresponding to the display of the anti-twist mechanism
  • FIG. 11 is a partial cross-sectional view showing a bent structure of the bent display device of FIG. 10 after being bent;
  • FIG. 12 is a schematic overall view of the bent structure of the bent display device of FIG. 1 after being bent.
  • a bending display device in a preferred embodiment of the present invention includes a bending structure 1 and a flexible display module 2, and the bending structure 1 includes a bendable first flexible board 11, At least two rotating shafts 12 disposed on the first flexible board 11 side by side, and a second flexible board 13 disposed on a side of the rotating shaft 12 opposite to the first flexible board 11 are bendable.
  • the flexible display module 2 is disposed outside the first flexible board 11 as a display surface of the display device.
  • the flexible display module 2 is bonded to the outside of the first flexible board 11.
  • the flexible display module 2 is also It may be supported by the first housing 16 and the second housing 17 , covering the outside of the first flexible board 11 or being connected to the first flexible board 11 by a connecting member.
  • the rotating shaft 12 is movably connected to the second flexible plate 13, and the rotating shaft 12 is provided with a guiding mechanism 14 connected to the second flexible plate 13, and the guiding mechanism 14 is arranged in the direction of the rotating shaft 12 and the second Flexible plate 13 sliding fit
  • the gap between the adjacent faces of the two adjacent rotating shafts 12 is gradually increased from the side of the first flexible board 11 toward the side of the second flexible board 13 so as to be integrally bent toward the second flexible board 13 side. .
  • the first flexible board 11 and the second flexible board 13 may be made of titanium alloy, stainless steel, carbon fiber composite material, Kevlar, etc., which can be bent and have high strength.
  • the number of the rotating shafts 12 arranged side by side may be two or more, and the number of the rotating shafts 12 and the adjacent surfaces of the two adjacent rotating shafts 12 may be set according to the curvature of the bending, the angle of the bending, and the like.
  • the maximum gap between them The greater the number of the rotating shafts 12, the larger the bending surface formed when bending, and the finer the bending, the two adjacent rotating shafts 1 2 The larger the maximum gap between adjacent faces, the larger the angle at which the bent structure 1 can be bent, and the smaller the bending radius.
  • the rotating shaft 12 includes a rotating body 121.
  • the rotating body 121 has a trapezoidal cross section, and a gap is formed between the adjacent rotating shafts 12 after being arranged side by side.
  • the gap near the second flexible board 13 is larger than the gap.
  • the gap is close to the side of the first flexible board 11.
  • the transition of the rotating shaft 12 to the side of the second flexible board 13 and the side close to the first flexible board 11 may also be other sequential transition modes.
  • the end of the rotating shaft 12 is provided with a boss 122, and the end cap 123 is mounted on the stud 122, and the end caps 231 on the adjacent rotating shaft 12 are axially staggered in the axial direction of the rotating shaft 12.
  • the end cap 123 can be aesthetically pleasing to avoid direct viewing of the internal structure of the rotating shaft 12, etc., and the staggered end caps 123 can avoid mutual interference during the bending of the bending structure.
  • the first flexible board 11 is provided with a locking hole 111, and the screwing member 112 is connected to the rotating shaft 12 through the locking hole 111 to mount the rotating shaft 12 to the first flexible board 11.
  • the first flexible board 11 is provided with a bent portion 113 bent toward the side of the second flexible board 13, and the keyhole 111 is formed on the bent portion 113, and the axis of the lock hole 111 is arranged along the direction of the rotating shaft 12. Settings.
  • the keyhole 111 is disposed on the bent portion 113, so that the space on the surface of the first flexible board 11 is not occupied, and the flexible display module 2 is more evenly fitted to the outer side of the first flexible board 11.
  • the second flexible board 13 is provided with a guiding groove 131 disposed along the direction of the rotating shaft 12, and the guiding mechanism 14 includes a guiding groove 131 for locking the second flexible board 13 to the rotating shaft.
  • the locking member 141 on the 12, the locking member 141 is slidably engaged with the second flexible plate 13, and when the bending structure 1 is bent, the relative sliding between the locking member 141 and the second flexible plate 13 can be generated.
  • the second flexible board 13 is provided with a plurality of guide grooves 131 disposed along the arrangement direction of the rotating shaft 12, and each of the guiding grooves 1 31 corresponds to one or more rotating shafts 12.
  • a gap is left between the locking member 141 and one end of the guide groove 131 near the intermediate position of the rotating shaft 12, and the movable space for bending is reserved for the locking member 141.
  • the size of the gap between the locking member 141 and the end of the guiding groove 131 adjacent to the intermediate position of the rotating shaft 12 can be set according to the bending angle requirement, and the space required for the bending of the locking member 141 can be satisfied.
  • the number of segments of the guiding groove 131 may be set according to the number of the rotating shafts 12 arranged, or may be directly one guiding groove 131, or may be two or a plurality of guiding grooves 131.
  • a damping member 142 for increasing the frictional force with the second flexible plate 13 is further disposed between the locking member 141 and the second flexible plate 13, and the damping member 142 may be added.
  • Second flexible board 13 and lock 1 The friction between 41 can be maintained at a specific bending position after bending.
  • the damping member 142 may be disposed on one or both sides of the opposite sides of the second flexible board 13, and the damping member 142 is fixed on the locking member 141 with the locking member 141 opposite to the second flexible board. 13 slides.
  • the damper member 142 may be in the form of a sheet or a block, and the locking member 141 is passed through after the locking hole is formed in the middle of the damper member 142.
  • the second flexible board 13 is fixedly coupled with one of the rotating shafts 12 arranged at the intermediate position, so that the second flexible board 13 is kept in the middle during the bending process.
  • the position of the shaft 12 is positioned.
  • the position of the second flexible board 13 can be defined to prevent displacement in the arrangement direction of the rotary shaft 12 by the sliding of the lock member 141 to affect the positioning.
  • each of the guiding slots 131 corresponds to two or more rotating shafts 12, and the guiding grooves 131 are staggered in the axial direction of the rotating shaft 12.
  • a guiding groove 131 corresponding to the plurality of rotating shafts 12 can reduce the number of the guiding grooves 131.
  • the guiding grooves 131 are offset in the axial direction of the rotating shaft 12, and the force of the second flexible plate 13 can be balanced to make the second flexible plate The movement of 13 is more stable.
  • each of the rotating shafts 12 has a guiding groove 131, which can prevent the second flexible plate 13 from moving relative to the rotating shaft 12 and the locking member 141 when the partial position of the second flexible plate 13 is unbalanced, avoiding the second flexible plate. 13 damaged
  • the bent structure 1 further includes a stop mechanism 15 that defines an angle at which the bent structure 1 is bent to a maximum amplitude in two different directions, respectively, allowing the bent structure 1 to be at a specific angular range Bending inside to prevent the bending structure 1 from bending and bending.
  • the stopper mechanism 15 includes two positioning grooves 151 provided on the second flexible plate 13, and stoppers 152 respectively provided on the outermost two rotating shafts 12.
  • the two positioning grooves 151 are respectively disposed along the arrangement direction of the rotating shaft 12, and are respectively adjacent to the two outer rotating shafts 12 arranged at the outermost sides, and the opposite ends of the two positioning grooves 151 are respectively arranged on the outermost side.
  • Two shafts 12 position corresponding
  • the two stopping portions 152 are respectively engaged with the two positioning grooves 151.
  • first fixing base 122 and the second fixing base 123 are respectively disposed on the two outermost rotating shafts 12, and the bending structure 1 further includes a first fixing base 122 and a second fixing seat respectively. 123 connects the first housing 16 and the second housing 17.
  • the first flexible board 11 is connected to the first housing 16 and the second housing 17, and the two stopping portions 152 are respectively abutted against the first housing 16 and the second housing 17, and when bent, two The stopping portion 152 can be matched with the first housing 16 and the second housing 17 to ensure the positioning, and the rotation of the rotating shaft 12 in the middle portion is reversed by turning the first housing 16 and the second housing 17 to generate a bending.
  • the first housing 16 and the second housing 17 can fix and position the two sides of the bending structure 1. When bending, the first housing 16 and the second housing 17 serve to support the two ends. In other embodiments, after the first housing 16 and the second housing 17 are removed, the bent structure 1 formed by the central portion of the rotating shaft 12 can be integrally bent.
  • an anti-twist mechanism 18 is provided between adjacent rotating shafts 12 to prevent lateral twisting of two adjacent rotating shafts 12, so that adjacent rotating shafts can be made. 12 is kept parallel during the bending process to avoid distortion and unevenness of the first flexible board 11 and the flexible display module 2 side after the dislocation.
  • the anti-twist mechanism 18 includes positioning holes 181 and positioning protrusions 182 respectively disposed on opposite sides of the adjacent two rotating shafts 12, and the positioning protrusions 182 are inserted into the positioning holes 181 and can be positioned along with the rotating shaft 12 Both sides of the hole 181 are swung, and are kept in a parallel state when the bending ⁇ causes the adjacent rotating shaft 12 to rotate.
  • both ends of the adjacent two rotating shafts 12 are provided with matching positioning holes 181 and positioning projections 182.
  • the positioning protrusion 182 is disposed at a side of the first flexible board 11 at an oblique angle 182 1.
  • the oblique angle 1821 can be offset from the side wall surface of the positioning hole 181.
  • the angle of relative rotation of the two adjacent rotating shafts 12 can be increased, and the bending angle of the bending structure 1 is correspondingly increased.
  • the anti-twist mechanism 18 may also include a connecting rod or the like connected between two adjacent rotating shafts 12, and a rotating turn is generated in the adjacent rotating shaft 12, and the adjacent rotating shafts 12 are kept in parallel. State, to prevent the bending structure 1 from twisting and misaligning.
  • the rotating shaft 12 is fixedly connected to the first flexible board 11 so that the first flexible board 11 connects the rotating shafts 12, and the first flexible board 11 and the flexible display module 2 are not pulled when being bent. Therefore, damage to components such as the flexible display module 2 on the side is prevented.
  • the flexible display module 2 is disposed outside the first flexible board 11 as a display surface of the display device. Normally, the flexible display module 2 can be a flat surface. Of course, the flexible display module 2 can also be bent. The portion corresponding to the structure 1 has a curved surface of a certain angle. When the display is to be bent, the second flexible board 13 may be integrally bent to the side, and the flexible display module 2 corresponding to the bent structure 1 may be bent.
  • the bent structure 1 can be applied to other connection structures that require bending.

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Telephone Set Structure (AREA)
  • Devices For Indicating Variable Information By Combining Individual Elements (AREA)

Abstract

一种弯折结构(1)及弯折显示装置,弯折结构(1)包括可弯曲的第一柔性板(11)、并排设置在第一柔性板(11)上的至少两个转轴(12),以及设置在转轴(12)与第一柔性板(11)相背的一侧可弯曲的第二柔性板(13)。转轴(12)与第二柔性板(13)活动连接;转轴(12)上设有与第二柔性板(13)连接的导向机构(14),导向机构(14)在转轴(12)的排布方向与第二柔性板(13)滑动配合。两相邻的转轴(12)的相邻面之间的间隙由第一柔性板(11)一侧向第二柔性板(13)一侧逐渐变大,以能整体向第二柔性板(13)一侧弯折。弯折结构(1)在弯折时,第一柔性板(11)一侧不会产生拉扯,长度可以保持不变,同时,确保与之粘接的柔性显示模组(2)不被拉伸而损坏,让第二柔性板(13)能与转轴(12)之间产生相对移动,但又不会在第二柔性板(13)一侧产生压缩和拉伸,保证了结构的稳定。

Description

发明名称:弯折结构及弯折显示装置 技术领域
[0001] 本发明涉及翻转连接结构, 更具体地说, 涉及一种弯折结构及弯折显示装置。
背景技术
[0002] 目前常见的转轴有:手机转轴 (翻盖或旋转屏手机;);笔记本电脑转轴;便携式 DVD 转轴; LED台灯转轴; LCD显示屏转轴; GPS等车载支架转轴等。
[0003] 此类转轴有个共同的特点就是, 转轴折弯状态的转轴弧长比展平状态的转轴长 度要长, 如应用于柔性显示设备上, 折弯过程中会导致显示屏受力拉裂, 显示 功能失效。
[0004] 1. 现有转轴折弯状态的转轴弧长比展平状态的转轴长度要长, 如应用于柔性 显示设备上, 会导致显示屏受力拉裂, 显示功能失效。
[0005] 2. 现有转轴因结构影响, 无法适用于极小弯折半径的产品。
[0006] 本发明想解决柔性屏设置在移动终端外侧的柔性屏移动终端 , 需要应对铰链闭 合和打开所产生的长度变化的问题。
技术问题
[0007] 本发明要解决的技术问题在于, 提供一种改进的弯折结构及弯折显示装置。
问题的解决方案
技术解决方案
[0008] 本发明解决其技术问题所采用的技术方案是: 构造一种弯折结构, 包括可弯曲 的第一柔性板、 并排设置在所述第一柔性板上的至少两个转轴, 以及设置在所 述转轴与所述第一柔性板相背的一侧可弯曲的第二柔性板;
[0009] 所述转轴与所述第二柔性板活动连接;
[0010] 所述转轴上设有与所述第二柔性板连接的导向机构, 所述导向机构在所述转轴 的排布方向与所述第二柔性板滑动配合;
[0011] 两相邻的转轴的相邻面之间的间隙由所述第一柔性板一侧向所述第二柔性板一 侧逐渐变大, 以能整体向所述第二柔性板一侧弯折。 [0012] 本发明还构造一种弯折显示装置, 包括所述的弯折结构和设置在所述第一柔性 板外侧的柔性显示模组。
发明的有益效果
有益效果
[0013] 实施本发明的弯折结构及弯折显示装置, 具有以下有益效果: 本发明在弯折结 构在弯折时, 第一柔性板一侧不会产生拉扯, 长度可以保持不变, , 同吋, 确 保与之粘接的柔性显示模组不被拉伸而损坏, 让第二柔性板能与转轴之间产生 相对移动, 但又不会在第二柔性板一侧产生压缩和拉伸, 保证了结构的稳定。
[0014] 进一步地, 两相邻的转轴的相邻面之间的最大间隙不同可以对应的调整弯折的 角度和半径。
对附图的简要说明
附图说明
[0015] 下面将结合附图及实施例对本发明作进一步说明, 附图中:
[0016] 图 1是本发明实施例中的弯折显示装置的立体结构示意图;
[0017] 图 2是图 1中的弯折显示装置的分解状态示意图;
[0018] 图 3是图 2中的第一柔性板和转轴的分解示意图;
[0019] 图 4是图 3中的第一柔性板和转轴的组装示意图;
[0020] 图 5是图 3中的第一柔性板和部分转轴的组装示意图;
[0021] 图 6是图 1中的弯折显示装置从第二柔性板一侧的立体示意图;
[0022] 图 7是图 6中的弯折显示装置对应显示导向机构时的局部剖面示意图;
[0023] 图 8是图 7中的弯折显示装置的弯折结构弯折后的局部剖面示意图;
[0024] 图 9是图 3中并排设置的两个转轴分解时的示意图;
[0025] 图 10是图 6中的弯折显示装置对应显示防扭机构时的局部剖面示意图;
[0026] 图 11是图 10中的弯折显示装置的弯折结构弯折后的局部剖面示意图;
[0027] 图 12是图 1中的弯折显示装置的弯折结构弯折后的整体外形示意图。
实施该发明的最佳实施例
本发明的最佳实施方式 [0028] 为了对本发明的技术特征、 目的和效果有更加清楚的理解, 现对照附图详细说 明本发明的具体实施方式。
[0029] 结合图 1至图 5所示, 本发明一个优选实施例中的弯折显示装置包括弯折结构 1 和柔性显示模组 2, 弯折结构 1包括可弯曲的第一柔性板 11、 并排设置在第一柔 性板 11上的至少两个转轴 12, 以及设置在转轴 12与第一柔性板 11相背的一侧可 弯曲的第二柔性板 13。 柔性显示模组 2设置在第一柔性板 11外侧, 作为显示装置 的显示面, 通常柔性显示模组 2粘接在第一柔性板 11的外侧, 在其他实施例中, 柔性显示模组 2也可由第一壳体 16、 第二壳体 17支撑, 覆盖在第一柔性板 11外侧 , 或通过连接件与第一柔性板 11锁合连接。
[0030] 如图 6所示, 转轴 12与第二柔性板 13活动连接, 转轴 12上设有与第二柔性板 13 连接的导向机构 14, 导向机构 14在转轴 12的排布方向与第二柔性板 13滑动配合
[0031] 两相邻的转轴 12的相邻面之间的间隙由第一柔性板 11一侧向第二柔性板 13—侧 逐渐变大, 以能整体向第二柔性板 13—侧弯折。
[0032] 结合图 7、 图 8所示, 在弯折结构 1在弯折时, 第一柔性板 11一侧不会产生拉扯 , 长度可以保持不变, 确保与之粘接的柔性显示模组 2不被拉伸而损坏。 在第二 柔性板 13弯折时, 由于第二柔性板 13的弯折半径小于第一柔性板 11的弯折半径 , 会让第二柔性板 13相对导向机构 14滑动, 让第二柔性板 13与转轴 12之间产生 相对移动, 不会在第二柔性板 13—侧产生压缩和拉伸, 保证了结构的稳定。
[0033] 在向第二柔性板 13—侧弯折的过程中, 两相邻的转轴 12的相邻面靠近第二柔性 板 13的一侧会逐渐变小, 直至两相邻的转轴 12的相邻面靠近相抵后, 停止弯折 。 在向第二柔性板 11一侧弯折复位时, 两相邻的转轴 12的相邻面靠近第二柔性 板 13的一侧会逐渐变大。
[0034] 通常, 第一柔性板 11、 第二柔性板 13可为钛合金、 不锈钢、 碳纤维复合材料、 凯夫拉等能弯折、 且强度较高的材质。
[0035] 并排设置的转轴 12的数量可以为两个, 也可为多个, 可根据弯折的弧度、 弯折 的角度大小等来设定转轴 12的数量以及两相邻转轴 12相邻面之间的最大间隙。 转轴 12的数量越多, 弯折时形成的弯折面可以越大, 弯折越精细, 两相邻转轴 1 2相邻面之间的最大间隙越大, 弯折结构 1能弯折的角度越大, 弯折半径越小。
[0036] 如图 9所示, 转轴 12包括转动主体 121 , 转动主体 121的断面呈梯形, 并排设置 后在相邻的转轴 12之间产生的间隙, 靠近第二柔性板 13—侧的间隙大于靠近第 一柔性板 11一侧的间隙。 在其他实施例中, 在保证间隙渐变的情况下, 转轴 12 靠近第二柔性板 13—侧和靠近第一柔性板 11一侧之间也可为其他顺接过渡方式
[0037] 转轴 12的端部设有凸柱 122, 凸柱 122上安装有端盖 123, 相邻转轴 12上的端盖 1 23在转轴 12的轴向错开。 端盖 123可以起到美观的作用, 避免直接看到转轴 12等 内部结构, 错开设置的端盖 123在弯折结构弯折过程中可以避免相互干扰。
[0038] 如图 5所示, 第一柔性板 11上设有锁孔 111 , 螺接件 112穿设锁孔 111与转轴 12连 接, 将转轴 12安装到第一柔性板 11上。
[0039] 第一柔性板 11设有向第二柔性板 13—侧弯折的弯折部 113 , 锁孔 111形成于弯折 部 113上, 且锁孔 111的轴线沿转轴 12的排布方向设置。
[0040] 锁孔 111设置在弯折部 113上, 可以不占用第一柔性板 11表面上的空间, 让柔性 显示模组 2与第一柔性板 11的外侧面贴合的更加平整。
[0041] 再如图 6所示, 第二柔性板 13上设有沿转轴 12的排布方向设置的导向槽 131 , 导 向机构 14包括穿设导向槽 131将第二柔性板 13锁合到转轴 12上的锁合件 141 , 锁 合件 141与第二柔性板 13滑动配合, 在弯折结构 1在弯折吋, 锁合件 141与第二柔 性板 13之间能产生相对滑动。
[0042] 第二柔性板 13上设有沿转轴 12的排布方向设置的多段导向槽 131, 每一导向槽 1 31对应一个或多个转轴 12。 锁合件 141与导向槽 131靠近排布的转轴 12的中间位 置一端之间留有空隙, 为锁合件 141预留出弯折时的活动空间。
[0043] 锁合件 141与导向槽 131靠近排布的转轴 12的中间位置一端之间的空隙大小可根 据弯折角度需求设置, 满足弯折吋锁合件 141需要的避让空间即可。 导向槽 131 的段数可以根据排布的转轴 12的数量设置, 也可直接为一条导向槽 131, 也可为 两段或其他数量的导向槽 131。
[0044] 结合图 6至图 8所示, 锁合件 141和第二柔性板 13之间还设有用于增加与第二柔 性板 13之间的摩擦力的阻尼件 142, 阻尼件 142可以增加第二柔性板 13与锁合件 1 41之间的摩擦力, 在弯折后, 可以保持在特定的弯折位置。
[0045] 优选地, 阻尼件 142可以在第二柔性板 13的两相对侧中一侧或两侧上设置, 阻 尼件 142固定在锁合件 141上, 随锁合件 141相对第二柔性板 13滑动。 通常, 阻尼 件 142可为片状或块状, 在阻尼件 142中部开设锁孔后供锁合件 141穿设。
[0046] 当转轴 12的数量为三个或多于三个时, 第二柔性板 13与排布在中间位置的其中 一个转轴 12固定连接, 让弯折过程中第二柔性板 13保持与中间位置的转轴 12定 位。 固定后可以限定第二柔性板 13的位置, 防止在与锁合件 141产生滑动吋在转 轴 12的排布方向移位而影响到定位。
[0047] 中间位置的转轴 12与第二柔性板 13固定连接后, 可以让第二柔性板 13的中部在 弯折时不会出现移动, 让第二柔性板 13与转轴 12、 锁合件 141之间的作用力位置 减少, 使第二柔性板 13的位置更加稳定。
[0048] 优选地, 每一导向槽 131对应两个或两个以上的转轴 12, 各导向槽 131在转轴 12 的轴向错开。 一个导向槽 131对应多个转轴 12, 可以减少导向槽 131的数量, 同 吋, 让导向槽 131在转轴 12的轴向错幵, 可以平衡第二柔性板 13的受力, 让第二 柔性板 13的移动更加的稳定。
[0049] 进一步地, 每一转轴 12均对应有导向槽 131, 可以避免第二柔性板 13在局部位 置受力不平衡时, 能相对转轴 12和锁合件 141产生移动, 避免第二柔性板 13受损
[0050] 在一些实施例中, 弯折结构 1还包括限定弯折结构 1分别向两个不同方向最大幅 度弯折时的角度的止挡机构 15 , 可以让弯折结构 1在特定的角度范围内弯折, 防 止弯折结构 1过渡弯曲。
[0051] 止挡机构 15包括设置在第二柔性板 13上的两个定位槽 151和分别设置在最外侧 两个转轴 12上的止挡部 152。
[0052] 两个定位槽 151均沿转轴 12的排布方向设置, 并分别靠近排布在最外侧的两个 转轴 12, 两个定位槽 151相背的两端分别与排布在最外侧的两个转轴 12位置对应
, 两个止挡部 152分别卡入两个定位槽 151。
[0053] 在弯折结构 1向第一柔性板 11一侧弯折到最大角度吋, 两个止挡部 152分别与两 个定位槽 151相背的两端相抵, 在弯折结构 1向第二柔性板 13—侧弯折到最大角 度时, 两个止挡部 152分别与两个定位槽 151相对的两端相抵, 在弯折时, 止挡 部 152在定位槽 151内滑动, 以此来限定弯折幅度范围。 弯折范围限定后, 可以 有效避免柔性显示模组 2反向弯折时损坏, 从而确保柔性显示模组 2功能正常。
[0054] 进一步地, 排布在最外侧的两个转轴 12上分别设有第一固定座 122、 第二固定 座 123 , 弯折结构 1还包括分别与第一固定座 122、 第二固定座 123连接的第一壳 体 16、 第二壳体 17。
[0055] 第一柔性板 11与第一壳体 16、 第二壳体 17连接, 两个止挡部 152分别与第一壳 体 16、 第二壳体 17相抵, 在弯折时, 两个止挡部 152能保持分别与第一壳体 16、 第二壳体 17配合, 保证定位, 并通过翻转第一壳体 16、 第二壳体 17带动中部的 转轴 12转动产生弯折。
[0056] 第一壳体 16、 第二壳体 17可以固定定位弯折结构 1的两边, 在弯折时, 第一壳 体 16、 第二壳体 17起到对两端支撑的作用。 在其他实施例中, 也可将第一壳体 1 6、 第二壳体 17取消后, 让中部的转轴 12部分形成的弯折结构 1能整体弯折。
[0057] 结合图 9至图 11所示, 在一些实施例中, 相邻的转轴 12之间设有防止两相邻的 转轴 12侧向扭曲错位的防扭机构 18, 可以使相邻的转轴 12在弯折过程中保持平 行, 避免扭曲、 错位后对第一柔性板 11、 及柔性显示模组 2—侧造成拉伸受力不 均。
[0058] 防扭机构 18包括在相邻的两转轴 12相对的侧面上分别设置的定位孔 181和定位 凸起 182, 定位凸起 182插入定位孔 181内, 并能随所在的转轴 12向定位孔 181的 两边摆动, 在弯折吋让相邻的转轴 12产生转动时保持在平行的状态。
[0059] 在转轴 12的长度较长时, 相邻的两转轴 12的两端均设有相互配合的定位孔 181 和定位凸起 182。 优选地, 定位凸起 182靠近第一柔性板 11的一侧面设有斜角 182 1, 在向第二柔性板 13—侧弯折后, 斜角 1821可以与定位孔 181的侧壁面相抵, 能保证定位准确, 也能增加弯折吋两相邻转轴 12相对转动的角度, 对应增加弯 折结构 1的弯折角度。
[0060] 在其他实施例中, 防扭机构 18也可包括连接在两相邻转轴 12之间的连杆等部件 , 在相邻的转轴 12产生转动吋, 保持相邻的转轴 12在平行的状态, 防止弯折结 构 1扭曲错位。 [0061] 进一步地, 转轴 12与第一柔性板 11固定连接, 让第一柔性板 11将各转轴 12连接 起来, 在弯折吋, 第一柔性板 11及柔性显示模组 2不会产生拉扯, 从而避免所在 侧的柔性显示模组 2等部件产生损坏。
[0062] 柔性显示模组 2设置在第一柔性板 11外侧, 作为显示装置的显示面, 正常情况 下, 柔性显示模组 2可为平面, 当然, 柔性显示模组 2也可为在弯折结构 1对应的 部分有一定角度的弯曲面。 当要弯曲显示时, 可以整体向第二柔性板 13—侧弯 折, 弯折结构 1对应的柔性显示模组 2部分会产生弯曲。
[0063] 在其他实施例中, 弯折结构 1可以应用到其他需要弯折的连接结构上。
[0064] 可以理解地, 上述各技术特征可以任意组合使用而不受限制。
[0065] 以上所述仅为本发明的实施例, 并非因此限制本发明的专利范围, 凡是利用本 发明说明书及附图内容所作的等效结构或等效流程变换, 或直接或间接运用在 其他相关的技术领域, 均同理包括在本发明的专利保护范围内。

Claims

一种弯折结构, 其特征在于, 包括可弯曲的第一柔性板 (11) 、 并排 设置在所述第一柔性板 (11) 上的至少两个转轴 (12) , 以及设置在 所述转轴 (12) 与所述第一柔性板 (11) 相背的一侧可弯曲的第二柔 性板 (13) ;
所述转轴 (12) 与所述第二柔性板 (13) 活动连接;
所述转轴 (12) 上设有与所述第二柔性板 (13) 连接的导向机构 (14 ) , 所述导向机构 (14) 在所述转轴 (12) 的排布方向与所述第二柔 性板 (13) 滑动配合;
两相邻的转轴 (12) 的相邻面之间的间隙由所述第一柔性板 (11) 一 侧向所述第二柔性板 (13) —侧逐渐变大, 以能整体向所述第二柔性 板 (13) 一侧弯折。
根据权利要求 1所述的弯折结构, 其特征在于, 所述第二柔性板 (13 ) 上设有沿所述转轴 (12) 的排布方向设置的导向槽 (131) , 所述 导向机构 (14) 包括穿设所述导向槽 (131) 将所述第二柔性板 (13 ) 锁合到所述转轴 (12) 上的锁合件 (141) , 所述锁合件 (141) 与 所述第二柔性板 (13) 滑动配合。
根据权利要求 2所述的弯折结构, 其特征在于, 所述第二柔性板 (13 ) 上设有沿所述转轴 (12) 的排布方向设置的至少两段导向槽 (131 ) , 每一所述导向槽 (131) 对应至少一个所述转轴 (12) , 所述锁 合件 (141) 与所述导向槽 (131) 靠近排布的所述转轴 (12) 的中间 位置一端之间留有空隙, 为所述锁合件 (141) 预留出弯折时的活动 空间。
根据权利要求 3所述的弯折结构, 其特征在于, 每一所述导向槽 (131 ) 对应两个或两个以上的所述转轴 (12) , 各所述导向槽 (131) 在 所述转轴 (12) 的轴向错开。
根据权利要求 4所述的弯折结构, 其特征在于, 每一所述转轴 (12) 均对应有所述导向槽 (131) 。 根据权利要求 1至 5任一项所述的弯折结构, 其特征在于, 所述转轴 ( 12) 包括至少三个, 所述第二柔性板 (13) 与排布在中间位置其中一 个所述转轴 (12) 固定连接。
根据权利要求 2至 5任一项所述的弯折结构, 其特征在于, 所述锁合件
( 141) 和所述第二柔性板 (13) 之间还设有用于增加与所述第二柔 性板 (13) 之间的摩擦力的阻尼件 (142) , 所述第二柔性板 (13) 的两相对侧中至少一侧上设有阻尼件 (142) 。
根据权利要求 1所述的弯折结构, 其特征在于, 所述弯折结构 (1) 还 包括限定所述弯折结构 (1) 分别向两个不同方向最大幅度弯折吋的 角度的止挡机构 (15) 。
根据权利要求 8所述的弯折结构, 其特征在于, 所述止挡机构 (15) 包括设置在所述第二柔性板 (13) 上的两个定位槽 (151) 和分别设 置在最外侧两个所述转轴 (12) 上的止挡部 (152) ;
两个所述定位槽 (151) 均沿所述转轴 (12) 的排布方向设置, 并分 别靠近排布在最外侧的两个所述转轴 (12) , 两个所述定位槽 (151
) 相背的两端分别与排布在最外侧的两个所述转轴 (12) 位置对应, 两个所述止挡部 (152) 分别卡入两个所述定位槽 (151) 。
根据权利要求 9所述的弯折结构, 其特征在于, 排布在最外侧的两个 所述转轴 (12) 上分别设有第一固定座 (122) 、 第二固定座 (123)
, 所述弯折结构 (1) 还包括分别与所述第一固定座 (122) 、 第二固 定座 (123) 连接的第一壳体 (16) 、 第二壳体 (17) ;
所述第一柔性板 (11) 与所述第一壳体 (16) 、 第二壳体 (17) 连接
, 两个所述止挡部 (152) 分别与所述第一壳体 (16) 、 第二壳体 (1
7) 相抵。
根据权利要求 1至 5任一项所述的弯折结构, 其特征在于, 相邻的所述 转轴 (12) 之间设有防止两相邻的所述转轴 (12) 侧向扭曲错位的防 扭机构 (18) 。
根据权利要求 11所述的弯折结构, 其特征在于, 所述防扭机构 (18) 包括在相邻的两所述转轴 (12) 相对的侧面上分别设置的定位孔 (18 1) 和定位凸起 (182) , 所述定位凸起 (182) 插入所述定位孔 (181 ) 内, 并能随所在的所述转轴 (12) 向所述定位孔 (181) 的两边摆 动。
根据权利要求 12所述的弯折结构, 其特征在于, 相邻的两所述转轴 ( 12) 的两端均设有相互配合的定位孔 (181) 和定位凸起 (182) , 所 述定位凸起 (182) 靠近所述第一柔性板 (11) 的一侧面设有斜角 (1 821) 。
根据权利要求 1至 5任一项所述的弯折结构, 其特征在于, 所述转轴 ( 12) 包括转动主体 (121) , 所述转动主体 (121) 的断面呈梯形, 并 排设置后在相邻的转轴 (12) 之间产生的间隙, 靠近所述第二柔性板
( 13) 一侧的间隙大于靠近所述第一柔性板 (11) 一侧的间隙。 根据权利要求 1至 5任一项所述的弯折结构, 其特征在于, 所述转轴 ( 12) 的端部设有凸柱 (122) , 所述凸柱 (122) 上安装有端盖 (123 ) , 相邻所述转轴 ( 12) 上的端盖 (123) 在所述转轴 (12) 的轴向 错幵。
一种弯折显示装置, 其特征在于, 包括权利要求 1至 15任一项所述的 弯折结构 (1) 和设置在所述第一柔性板 (Π) 外侧的柔性显示模组
(2) 。
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