WO2019218345A1 - 铰链防护结构及柔性显示装置 - Google Patents

铰链防护结构及柔性显示装置 Download PDF

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Publication number
WO2019218345A1
WO2019218345A1 PCT/CN2018/087494 CN2018087494W WO2019218345A1 WO 2019218345 A1 WO2019218345 A1 WO 2019218345A1 CN 2018087494 W CN2018087494 W CN 2018087494W WO 2019218345 A1 WO2019218345 A1 WO 2019218345A1
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WO
WIPO (PCT)
Prior art keywords
hinge
protection structure
protective cover
bracket
structure according
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PCT/CN2018/087494
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English (en)
French (fr)
Inventor
廖乐
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.)
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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 CN201880093883.1A priority Critical patent/CN112449710A/zh
Priority to PCT/CN2018/087494 priority patent/WO2019218345A1/zh
Publication of WO2019218345A1 publication Critical patent/WO2019218345A1/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

Definitions

  • the present invention relates to the field of display technologies, and in particular, to a hinge protection structure and a flexible display device.
  • the flexible display device has the advantages of being foldable and bendable, and is widely favored by consumers.
  • the existing flexible display device is bent by a hinge structure.
  • the exposed hinge structure not only affects the aesthetic appearance of the flexible display device, but also has problems such as difficulty in dustproofing and pinching.
  • the present invention provides a hinge protection structure and a flexible display device which are high in protection performance and beautiful in appearance.
  • the present invention provides a hinge protection structure for protecting a hinge structure, the hinge structure including a plurality of link plates hinged to each other, the hinge protection structure including a protective cover connected to at least one of the link plates, The protective cover covers the plurality of link plates.
  • the present invention provides a flexible display device comprising a flexible display screen, a hinge structure and the above-described hinge protection structure, the flexible display screen being disposed on a side of the hinge structure facing away from the protective cover.
  • the embodiment of the present invention provides a hinge protection structure and a flexible display device.
  • the protective cover covers the exposed portion of the hinge structure, thereby improving the overall appearance and protection performance of the flexible display device, and capable of Avoid external contaminants entering the hinge structure and affect the bending performance of the flexible display device.
  • FIG. 1 is a schematic structural view of a flexible display device according to a first embodiment of the present invention in an unfolded state.
  • FIG. 2 is an exploded perspective view of the flexible display device of FIG. 1.
  • FIG. 3 is a schematic structural view of a hinge structure of the flexible display device of FIG. 2.
  • FIG. 4 is an inverted view of the flexible display device of FIG. 2.
  • FIG. 5 is a schematic structural view of a hinge protection structure in a curved state according to an embodiment of the present invention.
  • Figure 6 is a cross-sectional view of the hinge protection structure of Figure 5 taken along line VI-VI.
  • Figure 7 is a cross-sectional view of the hinge guard structure of Figure 1 taken along line VII-VII.
  • FIG. 8 is a schematic structural view of a flexible display device according to a second embodiment of the present invention in an unfolded state.
  • Figure 9 is an exploded perspective view of the flexible display device of Figure 8.
  • a flexible display device 100 includes a flexible display panel 10 , a hinge structure 20 , and a hinge protection structure 30 .
  • the hinge structure 20 is disposed between the flexible display panel 10 and the hinge guard structure 30.
  • the hinge structure 20 is used to support the flexible display panel 10, and the hinge protection structure 30 is used to protect the hinge structure 20, so as to avoid the appearance of the hinge structure 20, which affects the appearance of the flexible display device 100, and is not easy to be dustproof and pinched.
  • the flexible display panel 10 is, for example, but not limited to, a liquid crystal display (LCD) panel, a Quantum Dot Light Emitting Diodes (QLED) panel, or an E-paper display (EPD).
  • LCD liquid crystal display
  • QLED Quantum Dot Light Emitting Diodes
  • EPD E-paper display
  • RFID radio frequency identification
  • FIG. 2 and FIG. 3 are schematic structural views of a hinge structure 20 according to an embodiment of the present invention.
  • the hinge structure 20 includes a plurality of link plates 21 hinged to each other, the hinge guard structure 30 includes a protective cover 31 connected to at least one link plate 21, and the protective cover 31 covers the plurality of link plates 21.
  • the protective cover 31 is directly fixedly connected to the link plate 21 by attaching.
  • the protective cover 31 can also be coupled to the link plate 21 by other mounting structures.
  • the hinge protection structure 30 further includes a bracket 32. The protective cover 31 and the plurality of link plates 21 are fixedly connected by the bracket 32, and the protective cover 31 covers the bracket 32 and the plurality of link plates 21.
  • each link plate 21 includes a bare first surface 211 and two opposite side faces 212.
  • the first surface 211 of the link plate 21 is adjacent to an end surface of the hinge protection structure 30.
  • the protective cover 31 covers at least one bracket 32 and the first surface 211 and the two side surfaces 212 of the chain plate 21, so as to prevent dust and the like from entering the hinge structure 20, and can solve the pinching problem of the hinge structure 20 during the deformation process.
  • Each link plate 21 also includes a second surface 210 (shown in Figure 5) opposite the first surface 211. When the hinge mechanism 20 is bent, the second surface 210 of each of the link plates 21 encloses a smooth curved surface.
  • each of the link plates 21 defines a receiving groove 2111 on a side facing the hinge protection structure 30.
  • the first surface 211 of each link plate 21 is provided with a receiving groove 2111 for receiving the bracket 32 along the longitudinal direction.
  • the length direction is perpendicular to the direction in which the hinge structure 20 is curved.
  • the receiving groove 2111 penetrates through the two side faces 212 of the link plate 21. It can be understood that, in other embodiments, the receiving groove 2111 may not penetrate through the two side faces 212 of the link plate 21.
  • the number of the brackets 32 is the same as the number of the link plates 21, that is, the bracket 32 includes a plurality of brackets 32, and each of the link plates 21 is correspondingly provided with a bracket 32.
  • the user can set the number of brackets 32 according to actual needs.
  • the bracket 32 is preferably disposed at a chain plate 21 at or near the center of the hinge structure 20.
  • the bottom surface of the receiving groove 2111 of each link plate 21 is provided with a plurality of first grooves 2112 arranged at intervals. A plurality of first grooves 2112 are continuous with the receiving grooves 2111.
  • a plurality of first grooves 2112 are disposed in the groove bottom 2110 of the receiving groove 2111.
  • a plurality of first grooves 2112 are symmetrically distributed from the center line of the hinge structure 20 to ensure the flatness of the protective cover 31, and the protective cover 31 is evenly stressed during the deformation of the hinge structure 20.
  • the side surface 212 of the link plate 21 includes a first side surface 2121, a second side surface 2122, and a limiting step surface 2123 connecting the first side surface 2121 and the second side surface 2122.
  • the limit step surface 2123 is used to limit the protective cover 31 and the bracket 32.
  • the adjacent two link plates 21 form a first accommodating space 213 between the sides of the hinge protection structure 30 .
  • the first accommodating space 213 is for providing a bending space when the protective cover 31 is in a deformed state.
  • the hinge structure 20 further includes a plurality of rotating shafts 22, a plurality of locking members 23 and two opposing base frames 24.
  • the adjacent two link plates 21 are hinged by the rotating shaft 22, thereby realizing the deformation of the hinge structure 30 to drive the deformation of the flexible display panel 10.
  • Each of the fasteners 23 is disposed between the adjacent two link plates 21 and is locked to the rotating shaft 22, thereby defining the movable space of the link plate 21.
  • the opposite ends of each rotating shaft 22 are correspondingly connected with the two locking members 23 so that the adjacent two link plates 21 are restricted from moving in the axial direction of the rotating shaft 22, so that the adjacent two link plates 21 can only be on the rotating shaft 22. Radial direction is active.
  • the axial direction of the rotating shaft 22 refers to the longitudinal direction of the rotating shaft 22
  • the radial direction of the rotating shaft 22 refers to a direction perpendicular to the longitudinal direction of the rotating shaft 22.
  • a plurality of link plates 21 connect the two base frames 24. The two link plates 21 adjacent to the two base frames 24 are fixedly coupled to the corresponding base frames 24, respectively.
  • Each of the lock fasteners 23 includes a connecting portion 231 and a limiting portion 232.
  • the connecting portion 231 extends vertically outward from the central portion of the limiting portion 232.
  • the connecting portion 231 has a substantially columnar shape.
  • the connecting portion 231 of the lock 23 is fixedly coupled to the rotating shaft 22.
  • the limiting portion 232 abuts the second side surface 2122 of the top chain plate 21, so that a gap is formed between the limiting portion 232 of the locking member 23 and the first side surface 2112 of the chain plate 21, thereby limiting the protective cover 31 and the bracket 32. .
  • the plurality of link plates 21 include two opposite first link plates 25 and a plurality of second link plates 26.
  • a plurality of second link plates 26 are interposed between the two first link plates 25, and the two first link plates 25 are fixedly coupled to the corresponding base frames 24, respectively.
  • Both ends of the first link plate 25 extend from the side closer to the base frame 24 to the two fixing plates 251.
  • the two ends of the first link plate 25 protrude from the side away from the base frame 24 with a plurality of connecting blocks 252.
  • Each connecting block 252 defines a shaft hole 2521 for accommodating the rotating shaft 22 in the axial direction to realize the rotation of the adjacent two link plates 21.
  • the structure of the second link plate 26 is similar to that of the first link plate 25, except that the second link plate 26 has a symmetrical structure, that is, the second link plate 26 is symmetrically distributed from the center line.
  • the second link plate 26 has a plurality of connecting blocks 262 protruding from two sides of the two first link plates 21, and each of the connecting blocks 262 defines a shaft hole 2621 for receiving the rotating shaft 22 in the axial direction.
  • the connecting blocks 262 of the adjacent two second link plates 26 are staggered to facilitate the movable connection of the adjacent two second link plates 26 by the rotating shaft 22.
  • each of the base frames 24 has a slot 241 for receiving the two fixing plates 251 of the first link plate 25 at an end adjacent to the first link plate 25.
  • the protective cover 31 includes a cover plate 311 and two opposite side plates 312.
  • the cover plate 311 and the two side plates 312 together define a receiving space 313 for forming the receiving bracket 32.
  • the two side plates 312 extend perpendicularly outward from both ends of the cover plate 311.
  • the cover plate 311 is substantially rectangular.
  • the cover plate 311 includes a plurality of alternately fixed fixing portions 3111 and a deformation portion 3112.
  • the fixing portion 3111 of the cover plate 311 can be directly fixedly coupled to the link plate 21.
  • the fixing portion 3111 of the cover plate 311 is fixedly connected to the link plate 21 via the bracket 32.
  • the deformation portion 3112 of the cover plate 311 is opposite to the first accommodating space 213 formed by the adjacent two link plates 21, that is, the cover plate 311 is disposed corresponding to the first accommodating space 213.
  • the fixing portion 3111 of the cover plate 311 is attached to the bracket 32.
  • the deformation portion 3112 of the cover plate 311 is received in the first accommodating space 213 formed between the adjacent two link plates 21 when the hinge structure 20 is bent.
  • the fixing portion 3111 and the deformation portion 3112 are in the same plane.
  • the deformation portion 3112 protrudes into the first accommodating space 213 when the hinge structure 20 is bent, and is located outside the first accommodating space 213 when the hinge structure 20 is deployed.
  • the deformation portion 3112 extends into the first accommodation space 213 to form a protrusion 3113.
  • Each side plate 312 defines an opening 3121 through which the lock fastener 23 passes.
  • the opening 3121 is substantially semi-circular.
  • Each side panel 312 includes an opposite inner side 3122 and an outer side 3123.
  • the inner side surface 3122 of the protective cover 31 is opposite to the first side surface 2121 of the link plate 21, and the outer side surface 3123 of the protective cover 31 is flush with and flush with the second side surface 2122 of the link plate 21, thereby making the flexibility
  • the display device 100 forms a regular surface, thereby improving the overall appearance of the flexible display device 100 and preventing dust from entering.
  • the bracket 32 is interposed between the link plate 21 and the protective cover 31, and is fixedly disposed on the link plate 21 of the hinge structure 20.
  • the brackets 32 are equally spaced, and the adjacent two brackets 32 are arranged in parallel, or the brackets 32 are symmetrically distributed from the center line of the hinge structure 20 to ensure the flatness of the protective cover 31, and the hinge structure 20 is in the process of deformation.
  • the protective cover 31 is evenly stressed.
  • the bracket 32 includes a connecting plate 321 and two opposite positioning blocks 322, and the two positioning blocks 322 extend perpendicularly outward from both ends of the connecting plate 321.
  • the fixing portion 3111 of the cover plate 311 is opposed to the connecting plate 321 of the bracket 32.
  • the connecting plate 321 of the bracket 32 is matched with the receiving groove 2111 of the link plate 21.
  • the connecting plate 321 of the bracket 32 is substantially elongated.
  • the distance between the two positioning blocks 322 is greater than or equal to the length of the receiving slot 2111, so that the connecting plate 321 of the bracket 32 is received in the receiving slot 2111.
  • a side of the connecting plate 321 facing away from the protective cover 31 defines a plurality of spaced second grooves 3211.
  • the second groove 3211 of the bracket 32 is directly opposite the first groove 2112 of the link plate 21.
  • An arcuate notch 3221 is formed on opposite sides of each positioning block 322, and a positioning block 322 of the adjacent two brackets 32 forms a gap 3222 through which the locking member 23 passes at the notch 3221.
  • Each of the positioning blocks 322 is provided with two opposite inclined faces 3223 from a side close to the connecting plate 321.
  • the two adjacent inclined surfaces 3223 of the two positioning blocks 322 collectively enclose a second accommodating space 3224 that forms the deformation portion 3112 of the protective cover 31.
  • the two inclined faces 3223 are inclined toward the direction in which the positioning block 322 extends, thereby realizing that the hinge mechanism 20 provides a curved space for the deformation portion 3112 of the protective cover 31 when deformed.
  • the hinge guard structure 30 also includes a mounting structure 33.
  • the mounting structure 33 is fixedly or detachably coupled to the link plate 21 and the bracket 32.
  • the mounting structure 33 is sandwiched between the first recess 2112 of the link plate 21 and the second recess 3211 of the bracket 32.
  • the mounting structure 33 is a magnetically absorbing structure.
  • the mounting structure 33 includes a plurality of adsorbed bodies 331 and a plurality of adsorbing bodies 332.
  • Each of the adsorbing bodies 331 is correspondingly received in the second recess 3211 or the first recess 2112, and each of the adsorbing bodies 332 is correspondingly received in the first recess. 2112 or within the second recess 3211.
  • the adsorbent 332 is, for example, a magnet.
  • the adsorbed body 331 is an object containing iron, cobalt, and nickel components, such as tinplate.
  • the shapes of the plurality of adsorbed bodies 331 and the plurality of adsorbing bodies 332 are, for example, but not limited to, rectangular, circular or other polygonal shapes.
  • the plurality of adsorbed bodies 331 and the plurality of adsorbing bodies 332 are selected from objects having a regular shape.
  • each of the adsorbing bodies 332 and the corresponding adsorbed bodies 331 are disposed on top of each other.
  • the adsorbed body 331 has two first end faces 3311 which are opposite and flat
  • the adsorbing body 332 also has two second end faces 3321 which are opposite and flat.
  • the shape and size of the first end face 3311 and the shape of the second end face 3321 are The size is the same, thereby increasing the contact area between the adsorbed body 331 and the adsorbent 332, thereby increasing the adsorption force between the two.
  • the mounting structure 33 can also be a sliding guiding structure or a locking structure (such as a screw).
  • a plurality of adsorbed bodies 331 are attached to the second recess 3211 of the bracket 32, and a plurality of adsorbing bodies 332 are attached to the first recess 2112 of the link plate 21.
  • the thickness of the adsorbed body 331 is the same as the depth of the second recess 3211. Therefore, when the adsorbed body 331 is received in the second receiving groove 3211, the side of the bracket 32 facing away from the protective cover 31 forms a flat surface. .
  • the thickness of the absorbing body 332 is the same as the depth of the first groove 2112.
  • the absorbing body 332 when the absorbing body 332 is received in the first groove 2112, the absorbing body 332 faces the second end surface 3321 of the protective cover 31 and the receiving groove 2111 of the chain plate 21.
  • the groove bottom 2110 forms a flat surface to facilitate mounting of the bracket 32 to the link plate 21.
  • the thickness of the adsorbed body 331 is smaller than the thickness of the adsorbing body 332, thereby saving cost, and the bonding force between the bracket 32 and the link plate 21 can be enhanced.
  • the thickness of the adsorbed body 331 may be different from the depth of the second recess 3211, and the thickness of the adsorbing body 332 may be different from the depth of the first recess 2112.
  • the sum of the thicknesses of the adsorbed body 331 and the adsorbing body 332 is equal to the sum of the depths of the first recess 2112 and the second recess 3211 to facilitate the mounting of the bracket 32.
  • both the protective cover 31 and the bracket 32 are made of a flexible material.
  • the flexible material is, for example, but not limited to, a flexible transparent plastic, a flexible glass or a metal foil, and other elastic materials capable of achieving bending are suitable for use in the present invention.
  • the flexible material is preferably an organic polymer.
  • the organic polymer is, for example, but not limited to, polyimide (Polyimide, PI for short), polyamide (PA), polycarbonate (PC), polyethersulfone (PES), poly pair. Polyethylene terephthalate (PET), polyethylene naphthalate (PEN), polymethylmethacrylate (PMMA) or cycloolefin copolymer (COC) ). Since the polyimide-based material has better elasticity and flexibility, the release stress can be better to deform the protective cover 31 when the flexible display panel 100 is bent. Therefore, the organic polymer is preferably a polyimide-based material.
  • FIG. 5 and FIG. 6 is a schematic structural view of the flexible display device 100 in a curved state according to the first embodiment of the present invention.
  • the bracket 32 is received in the receiving groove 2111 of the link plate 21, and the protective cover 31 is deformed.
  • the fixing portion 3111 of the protective cover 31 is attached to the bracket 32, and the deforming portion 3112 of the protective cover 31 is received in the first accommodating space 213 formed between the adjacent two link plates 21.
  • the flexible display device 100 As shown in FIG. 7, the flexible display device 100 according to the first embodiment of the present invention is in a straight state.
  • the fixing portion 3111 of the protective cover 31 When the hinge structure 20 is in a flat state, the fixing portion 3111 of the protective cover 31 is in the same plane as the deformation portion 3112.
  • the deformation portion 3112 of the protective cover 31 faces the first accommodating space 213 formed between the adjacent two link plates 21.
  • the adsorbed body 331 When assembled, the adsorbed body 331 is attached to the second recess 3211 of the bracket 32, and the adsorbing body 332 is attached to the first recess 2112 of the link plate 21.
  • the connecting plate 321 of the bracket 32 is received in the receiving groove 2111 of the chain plate 21, and the two positioning blocks 322 of the bracket 32 are correspondingly abutted against the two limiting step faces 2123 of the chain plate 21.
  • the adsorbed body 331 and the adsorbing body 332 are attracted to each other, thereby achieving a fixed connection between the bracket 32 and the link plate 21.
  • the fixing portion 3111 of the protective cover 31 is attached to the connecting plate 321 of the bracket 32, thereby achieving a fixed connection between the bracket 32 and the protective cover 31.
  • the fastener 23 is passed through the opening 3121 of the protective cover 31 and the gap 3222 formed between the positioning blocks 322 of the adjacent brackets 32 and locked to the rotating shaft 22, so that the hinge protection structure 30 and the hinge structure 20 can be further strengthened. Fixed connection.
  • a flexible display device 200 according to a second embodiment of the present invention is provided.
  • the shape and structure of the flexible display device 200 are similar to those of the flexible display device 100 of the first embodiment. Therefore, the size of each component included in the flexible display device 200, the component name, the positional relationship of each component, and the like can be referred to the flexibility.
  • the display device 100 is not described here.
  • the protective cover 31a of the flexible display device 200 is substantially rectangular
  • the bracket 32a is substantially elongated
  • the link plate 21a has a flat side surface 212a. Both ends of the protective cover 31a and the bracket 32a are flush with the side surface 212a of the link plate 21a, and the protective cover 31a covers the first surface 211 of the link plate 21a.
  • the hinge protection structure and the flexible display device provided by the embodiments of the present invention provide a protective cover and at least one bracket on the hinge structure, and the protective cover covers the exposed portion of the hinge structure, thereby improving the overall appearance and protection performance of the flexible display device. Moreover, it is possible to prevent external contaminants from entering the hinge structure and affecting the bending performance of the flexible display device.

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  • Devices For Indicating Variable Information By Combining Individual Elements (AREA)

Abstract

一种铰链防护结构（30）及柔性显示装置（100）。铰链防护结构（30）用于保护铰链结构（20），铰链结构（20）包括相互铰接的若干链板（21），铰链防护结构（30）包括与至少一链板（21）连接的防护盖（31），防护盖（31）覆盖若干链板（21）。本发明提供的铰链防护结构（30）及柔性显示装置（100），通过在铰链结构（20）上设置防护盖（31），由于防护盖（31）覆盖铰链结构（20）的外露部分，从而提高柔性显示装置（100）的整体美观及防护性能，且能够避免外界污染物进入铰链结构（20）而影响柔性显示装置（100）的弯曲性能。

Description

铰链防护结构及柔性显示装置 技术领域
本发明涉及显示技术领域，尤其涉及一种铰链防护结构及柔性显示装置。
背景技术
随着显示技术的发展，消费者对于显示装置的显示方式、显示效果等需求越来越多样化、个性化。柔性显示装置相对于传统的显示装置，具有可折叠和可弯曲等优点，广泛地受到消费者的青睐。
现有的柔性显示装置通过铰链结构进行弯折，然而，外露的铰链结构不仅影响柔性显示装置的美观，且存在不易防尘及夹手等问题。
发明内容
鉴于现有技术中存在的上述问题，本发明提供一种防护性能高且美观的铰链防护结构及柔性显示装置。
为了实现上述目的，本发明实施方式提供如下技术方案：
第一方面，本发明提供了一种铰链防护结构，用于保护铰链结构，所述铰链结构包括相互铰接的若干链板，所述铰链防护结构包括与至少一所述链板连接的防护盖，所述防护盖覆盖所述若干链板。
第二方面，本发明提供一种柔性显示装置，包括柔性显示屏、铰链结构和上述的铰链防护结构，所述柔性显示屏设置于所述铰链结构背离所述防护盖的一侧。
本发明实施例提供一种铰链防护结构及柔性显示装置，通过在铰链结构上设置防护盖，由于所述防护盖覆盖铰链结构的外露部分，从而提高柔性显示装置的整体美观及防护性能，且能够避免外界污染物进入铰链结构而影响柔性显示装置的弯曲性能。
附图说明
为了更清楚地说明本发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地介绍，显而易见地，下面描述中的附图仅仅是本发明的一些实施例，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是本发明第一实施例提供的柔性显示装置处于展开状态的结构示意图。
图2是图1中的柔性显示装置的分解示意图。
图3是图2中的柔性显示装置的铰链结构的结构示意图。
图4是图2中的柔性显示装置的倒置图。
图5是本发明实施例提供的铰链防护结构处于弯曲状态的结构示意图。
图6是图5中的铰链防护结构沿VI-VI的剖视图。
图7是图1中的铰链防护结构沿VII-VII的剖视图。
图8是本发明第二实施例提供的柔性显示装置处于展开状态的结构示意图。
图9是图8中的柔性显示装置的分解示意图。
具体实施方式
下面将结合本发明实施例中的附图，对本发明实施例中的技术方案进行清楚、完整地描述，显然，所描述的实施例仅仅是本发明一部分实施例，而不是全部的实施例。基于本发明中的实施例，本领域普通技术人员在没有做出创造性劳动前提下所获得的所有其他实施例，都属于本发明保护的范围。
为便于描述，这里可以使用诸如“在…之下”、“在…下面”、“下”、“在…之上”、“上”等空间相对性术语来描述如图中所示的一个元件或特征与另一个(些)元件或特征的关系。可以理解，当一个元件或层被称为在另一元件或层“上”、 “连接到”或“耦接到”另一元件或层时，它可以直接在另一元件或层上、直接连接到或耦接到另一元件或层，或者可以存在居间元件或层。
可以理解，这里所用的术语仅是为了描述特定实施例，并非要限制本发明。在这里使用时，除非上下文另有明确表述，否则单数形式“一”和“该”也旨在包括复数形式。进一步地，当在本说明书中使用时，术语“包括”和/或“包含”表明所述特征、整体、步骤、元件和/或组件的存在，但不排除一个或多个其他特征、整体、步骤、元件、组件和/或其组合的存在或增加。说明书后续描述为实施本发明的较佳实施方式，然所述描述乃以说明本发明的一般原则为目的，并非用以限制本发明的范围。本发明的保护范围当视所附权利要求所界定者为准。
请一并参阅图1和图2，为本发明第一实施例提供的一种柔性显示装置100，其包括柔性显示面板10、铰链结构20及铰链防护结构30。铰链结构20设置在柔性显示面板10和铰链防护结构30之间。铰链结构20用于支撑柔性显示面板10，铰链防护结构30用于保护铰链结构20，以避免铰链结构20外露而导致的影响柔性显示装置100的美观，不易防尘及夹手等问题。
可以理解的，柔性显示面板10例如是，但不局限于液晶显示(Liquid Crystal Display,LCD)面板、量子点显示(Quantum Dot Light Emitting Diodes，QLED)面板、电子纸(E-paper Display，EPD)、触摸屏(Touch panel)、射频标签(Radio Frequency Identification,RFID)等具有显示功能的产品或部件。
如图2和图3所示，为本发明实施例提供的铰链结构20的结构示意图。铰链结构20包括相互铰接的若干链板21，铰链防护结构30包括与至少一链板21连接的防护盖31，且防护盖31覆盖若干链板21。
可选的，在本实施例中，防护盖31通过贴附方式直接与链板21固定连接。在其他实施例中，防护盖31还可通过其他安装结构与链板21进行连接。优选的，在本实施例中，铰链防护结构30还包括支架32，防护盖31和若干链板21通过支架32进行固定连接，且防护盖31覆盖支架32和若干链板21。
在本实施例中，如图2和图3所示，每一链板21包括裸露的第一表面211及两相对的侧面212。链板21的第一表面211是靠近铰链防护结构30的一端面。防护盖31包覆至少一支架32及链板21的第一表面211和两侧面212，从而避免灰尘等杂物进入铰链结构20，且能够解决铰链结构20在形变过程中存在的夹手问题。每一链板21还包括与第一表面211相对的第二表面210(如图5所示)。当铰链机构20弯曲时，每一链板21的第二表面210围设形成平滑的曲面。
如图3所示，每一链板21于面向铰链防护结构30的一侧开设收容槽2111。具体的，每一链板21的第一表面211沿长度方向设置收容支架32的收容槽2111。可以理解的，长度方向垂直于铰链结构20弯曲的方向。在本实施例中，收容槽2111贯穿链板21的两侧面212。可以理解的，在其他实施例中，收容槽2111也可不贯穿链板21的两侧面212。
可以理解的，在本实施例中，支架32的数量与链板21的数量相同，也即支架32包括多个，且每一链板21对应设置一个支架32。在其他实施例中，用户可以根据实际需要设定支架32的数量。例如，当支架32仅有一个时，支架32优选地设置在位于或靠近铰链结构20的中心位置的链板21。其中，每一链板21的收容槽2111的底面设置若干间隔排列的第一凹槽2112。若干第一凹槽2112与收容槽2111相贯通。具体的，若干第一凹槽2112设置在收容槽2111的槽底2110。可选的，若干第一凹槽2112自铰链结构20的中心线呈对称分布，以确保防护盖31的平整性，且铰链结构20在形变过程中，防护盖31受力均匀。
在本实施例中，链板21的侧面212包括第一侧面2121、第二侧面2122及连接第一侧面2121和第二侧面2122的限位台阶面2123。限位台阶面2123用于对防护盖31和支架32进行限位。可选的，相邻两链板21于靠近铰链防护结构30的一侧之间形成第一容置空间213。第一容置空间213用于在防护盖31处于形变状态时提供弯折空间。
在本实施例中，铰链结构20还包括若干转轴22、若干锁固件23及相对的两基架24。相邻两链板21通过转轴22相铰接，从而实现铰链结构30的形变而带动柔性显示面板10的形变。每一锁固件23设置在相邻的两链板21之间，且锁固于转轴22上，从而实现对链板21的活动空间进行限定。具体的，每一转轴22相对的两端对应连接两锁固件23，以使相邻两链板21在转轴22的轴向方向被限制活动，从而相邻两链板21只能在转轴22的径向方向活动。可以理解的，转轴22的轴向是指转轴22的长度方向，转轴22的径向是指一方向垂直于转轴22的长度方向。若干链板21连接两基架24。靠近两基架24的两链板21分别固定连接于对应的基架24。
每一锁固件23包括连接部231和限位部232。连接部231自限位部232的中部垂直向外延伸。连接部231大致呈圆柱状。锁固件23的连接部231与转轴22固定连接。限位部232抵顶链板21的第二侧面2122，从而锁固件23的限位部232与链板21的第一侧面2121之间形成缝隙，进而实现对防护盖31和支架32进行限位。
在本实施例中，若干链板21包括相对的两第一链板25和若干第二链板26。若干第二链板26夹设在两第一链板25之间，两第一链板25分别固定连接于对应的基架24。第一链板25的两端自靠近基架24的一侧延伸两固定板251。第一链板25的两端自远离基架24的一侧凸设若干连接块252。每一连接块252沿轴向开设收容转轴22的轴孔2521，以实现相邻两链板21的转动。第二链板26的结构与第一链板25的结构相似，不同的是，第二链板26为对称结构，也即第二链板26自中心线呈对称分布。具体的，第二链板26朝向两第一链板21的两侧均凸设若干连接块262，且每一连接块262沿轴向开设收容转轴22的轴孔2621。相邻两第二链板26的连接块262错开设置，以利于转轴22将相邻两第二链板26进行活动连接。可以理解的，第一链板25的连接块252和靠近第一链板25的第二链板26的连接块262也错开设置，从而实现第一链板25和第二链板26的活动连接。每一基架24于靠近第一链板25 的一端对应开设收容第一链板25的两固定板251的插槽241。
在本实施例中，请一并参阅图2，图4，图6和图7，防护盖31包括盖板311和两相对的侧板312。盖板311和两侧板312共同围设形成收容支架32的收容空间313。两侧板312自盖板311的两端垂直向外延伸。
盖板311大致呈矩形。盖板311包括多个交替分布的固定部3111和形变部3112。盖板311的固定部3111可直接与链板21固定连接。具体的，在本实施例中，盖板311的固定部3111通过支架32与链板21固定连接。盖板311的形变部3112与相邻两链板21围设形成的第一容置空间213正相对，也即盖板311与第一容置空间213对应设置。盖板311的固定部3111贴附于支架32，盖板311的形变部3112在铰链结构20发生弯曲时收容于相邻两链板21之间形成的第一容置空间213内。当铰链结构20展开时，固定部3111与形变部3112位于同一平面。形变部3112在铰链结构20弯曲时伸入第一容置空间213内，在铰链结构20展开时位于第一容置空间213外。形变部3112伸入第一容置空间213内而形成凸起3113。
每一侧板312开设供锁固件23穿过的开口3121。开口3121大致呈半圆形。每一侧板312包括相对的内侧面3122和外侧面3123。在本实施例中，防护盖31的内侧面3122与链板21的第一侧面2121正相对，防护盖31的外侧面3123与链板21的第二侧面2122相接且平齐，从而使得柔性显示装置100形成规则表面，进而提高了柔性显示装置100的整体外观，且能够避免灰尘进入。
如图2和图4所示，在本实施例中，支架32夹设在链板21和防护盖31之间，且固定地设置在铰链结构20的链板21上。优选的，支架32等间距排列，且相邻两支架32平行设置，或是支架32自铰链结构20的中心线呈对称分布，以确保防护盖31的平整性，且铰链结构20在形变过程中，防护盖31受力均匀。支架32包括连接板321和两相对的定位块322，且两定位块322自连接板321的两端垂直向外延伸。盖板311的固定部3111与支架32的连接 板321正相对。支架32的连接板321与链板21的收容槽2111相匹配。支架32的连接板321大致呈长条形。两定位块322之间的距离大于或等于收容槽2111的长度，从而实现支架32的连接板321收容于收容槽2111。连接板321背离防护盖31的一侧开设若干间隔排列的第二凹槽3211。支架32的第二凹槽3211与链板21的第一凹槽2112正相对。每一定位块322的相对两侧开设弧形的缺口3221，相邻两支架32的定位块322在缺口3221处形成供锁固件23穿过的空隙3222。每一定位块322自靠近连接板321的一侧设置两相对的倾斜面3223。两定位块322的相邻两倾斜面3223共同围设形成收容所述防护盖31的形变部3112的第二容置空间3224。两倾斜面3223朝定位块322延伸的方向倾斜，从而实现铰链机构20在形变时为防护盖31的形变部3112提供弯曲的空间。
在本实施例中，至少一支架32夹设在防护盖31和链板21之间，且至少一支架32固定地设置在铰链结构20的链板21上。铰链防护结构30还包括安装结构33。安装结构33固定或可拆卸地连接在链板21和支架32上。安装结构33夹设在链板21的第一凹槽2112和支架32的第二凹槽3211之间。在本实施例中，安装结构33为磁吸附结构。安装结构33包括若干被吸附体331和若干吸附体332，每一被吸附体331对应的收容于第二凹槽3211或第一凹槽2112内，每一吸附体332对应收容于第一凹槽2112或第二凹槽3211内。吸附体332例如是磁铁。被吸附体331为包含铁、钴、镍成分的物体，例如马口铁。若干被吸附体331和若干吸附体332的形状例如是，但不局限于矩形、圆形或是其他多边形。优选的，若干被吸附体331和若干吸附体332选自形状规则的物体。
可选的，每一所述吸附体332和对应的所述被吸附体331叠置设置。具体的，被吸附体331具有相对且平坦的两第一端面3311，吸附体332也具有相对且平坦的两第二端面3321，第一端面3311的形状和尺寸大小与第二端面3321的形状和尺寸大小相同，从而增大被吸附体331和吸附体332之间的接 触面积，进而增大两者之间的吸附力。
可以理解的，在其他实施例中，安装结构33还可以为滑动引导结构或锁固结构(例如螺丝)。在本实施例中，若干被吸附体331贴附于支架32的第二凹槽3211内，若干吸附体332贴附于链板21的第一凹槽2112内。可选的，被吸附体331的厚度与第二凹槽3211的深度相同，因此，当被吸附体331收容于第二收容槽3211内时，支架32背离防护盖31的一侧形成平坦的表面。吸附体332的厚度与第一凹槽2112的深度相同，因此，当吸附体332收容于第一凹槽2112时，吸附体332面向防护盖31的第二端面3321与链板21的收容槽2111的槽底2110形成平坦的表面，以利于支架32安装于链板21。
优选的，被吸附体331的厚度小于吸附体332的厚度，从而节约成本，并且能够加强支架32和链板21之间的结合力。在其他实施例中，被吸附体331的厚度与第二凹槽3211的深度可不同，吸附体332的厚度与第一凹槽2112的深度也可不同。优选的，被吸附体331和吸附体332的厚度之和等于第一凹槽2112和第二凹槽3211的深度之和，以方便支架32的安装。
在本实施例中，防护盖31和支架32均由柔性材料制成。柔性材料例如是，但不局限于柔性透明塑料、柔性玻璃或金属箔，其他能够实现弯折的弹性材料均适用于本发明。在本实施例中，柔性材料优选为有机聚合物。有机聚合物例如是，但不局限于聚酰亚胺(Polyimide，简称PI)、聚酰胺(polyamide，PA)、聚碳酸酯(polycarbonate，PC)、聚苯醚砜(polyethersulfone，PES)、聚对苯二甲酸乙二醇酯(polyethylene terephthalate，PET)、聚萘二甲酸乙二醇酯(polyethylene naphthalate，PEN)、聚甲基丙烯酸甲酯(polymethylmethacrylate，PMMA)或环烯烃共聚物(cycloolefin copolymer，COC)。由于聚酰亚胺类材料具有较好的弹性和柔韧性，可以比较好释放应力以实现柔性显示面板100弯曲时带动防护盖31发生形变，因此有机聚合物优选为聚酰亚胺类材料。
请一并参看图5和图6，为本发明第一实施例提供的柔性显示装置100处于弯曲状态的结构示意图。如图5所示，当铰链结构20弯曲时，支架32收容 于链板21的收容槽2111内，防护盖31发生形变。防护盖31的固定部3111贴附于支架32，防护盖31的形变部3112收容于相邻两链板21之间形成的第一容置空间213内。
如图7所示，为本发明第一实施例提供的柔性显示装置100处于平直状态的结构示意图。当铰链结构20处于平直状态时，防护盖31的固定部3111与所述形变部3112位于同一平面。防护盖31的形变部3112正对相邻两链板21之间形成的第一容置空间213。
组装时，将被吸附体331贴附于支架32的第二凹槽3211内，并将吸附体332贴附于链板21的第一凹槽2112内。将支架32的连接板321收容于链板21的收容槽2111内，并使得支架32的两定位块322对应抵接链板21的两限位台阶面2123。此时，被吸附体331和吸附体332相吸，从而实现支架32与链板21之间的固定连接。随后，将防护盖31的固定部3111贴附于支架32的连接板321，从而实现支架32与防护盖31之间的固定连接。进一步地，将锁固件23穿过防护盖31的开口3121和相邻两支架32的定位块322之间形成的间隙3222并锁固于转轴22，从而可进一步加强铰链防护结构30与铰链结构20的固定连接。
请一并参看图8和图9，为本发明第二实施例提供的一种柔性显示装置200。在第二实施例中，柔性显示装置200的形状和结构与第一实施例的柔性显示装置100相似，因此柔性显示装置200包含的各元件尺寸、元件名称、各元件位置关系等均可参考柔性显示装置100，在此不再赘述。不同的是，柔性显示装置200的防护盖31a大致呈矩形，支架32a大致呈长条形，以及链板21a具有平坦的侧面212a。防护盖31a和支架32a的两端部与链板21a的侧面212a平齐，且防护盖31a覆盖链板21a的第一表面211。
本发明实施例提供的铰链防护结构及柔性显示装置，通过在铰链结构上设置防护盖和至少一支架，由于该防护盖覆盖铰链结构的外露部分，从而提高柔性显示装置的整体美观及防护性能，且能够避免外界污染物进入铰链结构而影 响柔性显示装置的弯曲性能。
以上所述的实施方式，并不构成对该技术方案保护范围的限制。任何在上述实施方式的精神和原则之内所作的修改、等同替换和改进等，均应包含在该技术方案的保护范围之内。

Claims (20)

  1. 一种铰链防护结构，用于保护铰链结构，所述铰链结构包括相互铰接的若干链板，其特征在于，所述铰链防护结构包括与至少一所述链板连接的防护盖，所述防护盖覆盖所述若干链板。
  2. 如权利要求1所述的铰链防护结构，其特征在于，所述防护盖包括与所述链板固定连接的固定部及位于相邻两所述固定部之间的形变部，所述形变部在所述铰链结构弯曲时发生形变。
  3. 如权利要求2所述的铰链防护结构，其特征在于，当所述铰链结构展开时，所述固定部与所述形变部位于同一平面。
  4. 如权利要求2所述的铰链防护结构，其特征在于，相邻的两所述链板之间形成第一容置空间，所述形变部与所述第一容置空间对应设置。
  5. 如权利要求4所述的铰链防护结构，其特征在于，所述形变部在所述铰链结构弯曲时伸入所述第一容置空间内，在所述铰链结构展开时位于所述第一容置空间外。
  6. 如权利要求5所述的铰链防护结构，其特征在于，所述形变部伸入所述第一容置空间内而形成凸起。
  7. 如权利要求2所述的铰链防护结构，其特征在于，所述铰链防护结构还包括支架，所述防护盖的固定部通过所述支架与至少一所述链板连接。
  8. 如权利要求7所述的铰链防护结构，其特征在于，所述链板包括第一表面及两相对的侧面，所述防护盖包覆所述支架及所述链板的第一表面和两侧面。
  9. 如权利要求7所述的铰链防护结构，其特征在于，所述支架夹设在所述防护盖和所述链板之间，且所述支架固定地设置在所述铰链结构的链板上。
  10. 如权利要求7所述的铰链防护结构，其特征在于，所述支架包括连接板，所述链板于面向所述铰链防护结构的一侧开设收容槽，所述连接板收容于所述收容槽内。
  11. 如权利要求7所述的铰链防护结构，其特征在于，所述铰链防护结构还包括安装结构，所述支架通过所述安装结构固定或可拆卸地连接在所述链板上。
  12. 如权利要求11所述的铰链防护结构，其特征在于，所述链板设置第一凹槽，所述支架设置与所述第一凹槽正相对的第二凹槽，所述安装结构夹设在所述第一凹槽和所述第二凹槽之间。
  13. 如权利要求12所述的铰链防护结构，其特征在于，所述安装结构包括磁吸的吸附体和被吸附体，所述吸附体和所述被吸附体其中之一收容于所述第一凹槽内，另一者收容于所述第二凹槽内。
  14. 如权利要求7所述的铰链防护结构，其特征在于，所述链板的侧面包括相对的两第一侧面和两第二侧面，所述防护盖包括相对的两外侧面和两内侧面，所述防护盖的两内侧面与对应所述链板的两第一侧面正相对，所述防护盖的两外侧面与对应所述链板的两第二侧面相接且平齐。
  15. 如权利要求14所述的铰链防护结构，其特征在于，所述链板还设置限位台阶面，所述限位台阶面连接所述第一侧面和所述第二侧面，且用于对所述支架和所述防护盖进行限位。
  16. 如权利要求7所述的铰链防护结构，其特征在于，所述铰链结构包括用于固定所述链板的锁固件，所述支架还包括自所述连接板垂直向外延伸两相对的定位块，每一定位块的相对两侧开设弧形的缺口，相邻两支架的定位块在所述缺口处形成供所述锁固件穿过的空隙。
  17. 如权利要求16所述的铰链防护结构，其特征在于，所述防护盖包括两相对的侧板，每一侧板设置供所述锁固件穿过的开口。
  18. 如权利要求16所述的铰链防护结构，其特征在于，每一所述定位块的相对两侧设置两相对的倾斜面，相邻两定位块的相邻两倾斜面共同围设形成收容所述防护盖的形变部的第二容置空间。
  19. 如权利要求1所述的铰链防护结构，其特征在于，所述防护盖和所述 支架均由弹性材料制成。
  20. 一种柔性显示装置，其特征在于，包括柔性显示屏、铰链结构和如权利要求1-19中任一项所述的铰链防护结构，所述柔性显示屏设置于所述铰链结构背离所述防护盖的一侧。
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