WO2021212758A1 - 一种近眼显示装置及可穿戴设备 - Google Patents

一种近眼显示装置及可穿戴设备 Download PDF

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Publication number
WO2021212758A1
WO2021212758A1 PCT/CN2020/119281 CN2020119281W WO2021212758A1 WO 2021212758 A1 WO2021212758 A1 WO 2021212758A1 CN 2020119281 W CN2020119281 W CN 2020119281W WO 2021212758 A1 WO2021212758 A1 WO 2021212758A1
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WO
WIPO (PCT)
Prior art keywords
eye display
display screen
host
link
connecting rod
Prior art date
Application number
PCT/CN2020/119281
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English (en)
French (fr)
Inventor
林能清
Original Assignee
深圳市谦视智能科技有限责任公司
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
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Application filed by 深圳市谦视智能科技有限责任公司 filed Critical 深圳市谦视智能科技有限责任公司
Priority to CN202090000276.9U priority Critical patent/CN215181208U/zh
Publication of WO2021212758A1 publication Critical patent/WO2021212758A1/zh

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Classifications

    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B27/00—Optical systems or apparatus not provided for by any of the groups G02B1/00 - G02B26/00, G02B30/00
    • G02B27/01—Head-up displays
    • G02B27/017—Head mounted
    • G02B27/0176—Head mounted characterised by mechanical features
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B27/00—Optical systems or apparatus not provided for by any of the groups G02B1/00 - G02B26/00, G02B30/00
    • G02B27/01—Head-up displays
    • G02B27/0149—Head-up displays characterised by mechanical features
    • G02B2027/0154—Head-up displays characterised by mechanical features with movable elements
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B27/00—Optical systems or apparatus not provided for by any of the groups G02B1/00 - G02B26/00, G02B30/00
    • G02B27/01—Head-up displays
    • G02B27/017—Head mounted
    • G02B2027/0178—Eyeglass type

Definitions

  • the present invention relates to the field of electronic equipment, in particular to a near-eye display device and wearable equipment.
  • AR Artument Reality, augmented reality
  • VR Virtual Reality, virtual reality
  • AR/VR helmets etc.
  • the existing near-eye display technology uses an optical perspective display, and the basic principle is shown in Figure 1. Since near-eye display applications require close proximity to the human eye, and the distance and angle between the screen and the eyeball must meet the requirements of the exit pupil distance and field of view of the display, the distance is too far or too close, or the field of view is offset, the human eye It is impossible to see a clear and complete image.
  • this kind of display is applied to a head-mounted product, due to differences in the size of the head and the position of the eyes on the face of different people, the position of the display after the product is worn on the head There is a big difference in the relative position with the eyes, and the adjustment distance is limited, which affects near-eye viewing.
  • users often watch the display screen intermittently, and do not need to watch the display screen for a long time. However, due to the large product structure, it is difficult to store and the product integrity is poor.
  • the near-eye display device and wearable device provided by the embodiments of the present invention adopt a link folding mechanism, and the near-eye display screen is well integrated with the host after being stored, thereby realizing the integrated design of the near-eye display and the host. It can be opened when in use and folded and stored when not in use as needed. It is more convenient to use and has a stronger product integrity. This solves the problem of large structure of existing products, limited adjustment distance and angle, which affects near-eye viewing, and is not easy to store, and product integrity is poor. problem.
  • a near-eye display device includes a host, a link folding mechanism, and a near-eye display screen, wherein:
  • the link folding mechanism is respectively connected with the host and the near-eye display screen, and the near-eye display screen is received or opened from the host through the link folding mechanism.
  • the host includes a host body and a host circuit board, and the host circuit board is located in the host body.
  • the connecting rod folding mechanism includes: a first connecting rod, a second connecting rod, a third connecting rod, a first rotating shaft, a second rotating shaft, and a third rotating shaft; wherein: the first connecting rod A rotating shaft is connected to the main body; the first connecting rod is connected to the first rotating shaft, and the first connecting rod and the main body are connected together through the first rotating shaft; the first The connecting rod and the second connecting rod are connected together by the second rotating shaft, and the first connecting rod and the second connecting rod overlap each other when stored; the second connecting rod and the third connecting rod The connecting rods are connected together by the third rotating shaft to realize the rotation of the third connecting rod.
  • the near-eye display screen is arranged on the third link, and the rotation of the third link drives the near-eye display screen to adjust.
  • the link folding mechanism further includes a translation shaft, and the translation shaft is connected to the third rotation shaft.
  • the third rotation shaft includes a translation sleeve, a first fixed disk, and a second fixed disk, the first fixed disk is disposed at the bottom of the translation sleeve, and the first fixed disk Rotate relative to the two fixed disks.
  • the second fixed disk and the second connecting rod are connected together, thereby connecting the third rotating shaft and the second connecting rod together.
  • the translation shaft translates in the translation sleeve; at least one boss is provided at one end of the translation shaft, and the boss is buckled on the second fixing plate.
  • the outer surface of the translation shaft is provided with a set of rings.
  • the near-eye display screen includes a display screen and a near-eye display screen circuit board, the display screen and the near-eye display screen circuit board are electrically connected by a cable, and the near-eye display screen circuit board is electrically connected to the near-eye display screen circuit board.
  • the host circuit board is electrically connected through a cable.
  • the interior of the second link is hollow, and the near-eye display circuit board passes through the interior hollow of the second link; the third rotation axis and the translation axis
  • the inner hollow of the near-eye display screen circuit board passes through the inner hollow positions of the third rotation axis and the translation axis, and is connected to the display screen.
  • the inside of the first rotating shaft, the first connecting rod and the second rotating shaft are hollow, and the cable is hollow from the inside of the first rotating shaft, and the inside of the first connecting rod is hollow and The inside of the second rotating shaft is hollow and is electrically connected to the circuit board of the near-eye display screen.
  • a wearable device includes a device body and the near-eye display device according to any one of the embodiments of the present invention, and the near-eye display device is installed on the device. On the body.
  • the near-eye display device includes a host, a link folding mechanism, and a near-eye display screen.
  • the host and the near-eye display screen are connected, and the near-eye display screen is received or opened from the host through the linkage folding mechanism.
  • the connecting rod folding mechanism by adopting the connecting rod folding mechanism, the near-eye display screen is well integrated with the host after being stored, and the integrated design of the near-eye display screen and the host is realized. It is more convenient and the product is more integrated, so as to solve the problems of the existing product structure is huge, the adjustment distance and angle are limited, which affects near-eye viewing, and is not easy to store, and the product integrity is poor.
  • FIG. 1 is a schematic diagram of the basic principle of the optical see-through display adopted by the existing near-eye display technology.
  • FIG. 2 is a schematic structural diagram of a near-eye display device provided by the present invention.
  • Fig. 3 is a schematic structural diagram of a link folding mechanism of a near-eye display device provided by the present invention.
  • FIG. 4 is a schematic diagram of storing a near-eye display screen of a near-eye display device provided by the present invention.
  • FIG. 5 is a schematic diagram of the cable connection between the host and the near-eye display screen of a near-eye display device provided by the present invention.
  • FIG. 6 is a schematic diagram of the structure of the rotation axis and the translation axis of a near-eye display device provided by the present invention.
  • FIG. 7 is a schematic structural diagram of a wearable device provided by the present invention.
  • module means, “part” or “unit” used to denote elements is only used to facilitate the description of the present invention, and has no specific meaning in itself. Therefore, “module”, “part” or “unit” can be used in a mixed manner.
  • the present invention provides a near-eye display device.
  • the near-eye display device 100 includes a host 10, a link folding mechanism 20, and a near-eye display screen 30, wherein: the link folding mechanism 20 is respectively connected with the host 10 and the near-eye display screen 30, and the near-eye display screen 30 is received or opened from the host 10 through the link folding mechanism 20.
  • the near-eye display screen is stored inside or below the mainframe, and is integrated with the mainframe product. After the near-eye display screen is stored, it is well integrated with the mainframe, realizing the near-eye display screen and the mainframe.
  • the integrated design can be opened when in use and folded and stored when not in use as needed. It is more convenient to use and the product is more integrated, thus solving the problem of large structure of existing products, limited adjustment distance and angle, affecting close-eye viewing, and poor storage , The problem of poor product integrity.
  • the host 10 is used to transmit audio and video data to the near-eye display 30.
  • the host 10 includes a host body 16 and a host circuit board 19, and the host circuit board 19 is located in the host body 16.
  • the connecting rod folding mechanism 20 includes: a first connecting rod 21, a second connecting rod 22, a third connecting rod 23, a first rotating shaft 24, and a second rotating shaft 25 , The third rotation axis 26, the translation axis 27.
  • the first rotating shaft 24 is connected to the main body 16.
  • the first connecting rod 21 is connected to the first rotating shaft 24, and the first connecting rod 21 and the main body 16 are connected together through the first rotating shaft 24.
  • the first connecting rod 21 and the second connecting rod 22 are connected together by a second rotating shaft 25.
  • the storage size and the adjustment range of the near-eye display screen are adjusted by designing the length of the first link 21 and the second link 22.
  • the first connecting rod 21 and the second connecting rod 22 overlap each other to achieve the minimum storage size. As shown in Figure 4.
  • the second connecting rod 22 is connected to the third rotating shaft 26, and the third connecting rod 23 is fixedly connected to the third rotating shaft, and can rotate with the third rotating shaft to realize the third The rotation of the link 23.
  • the translation shaft is connected to the third rotation shaft 26, and the translation of the third connecting rod is realized by the translation shaft.
  • the near-eye display screen 30 is arranged on the third link 23, and the rotation and translation of the third link 23 drives the near-eye display screen 30 to flexibly adjust the alignment of the observation eye.
  • the first rotating shaft 24, the second rotating shaft 25, and the third rotating shaft 26 are flat rotating shafts.
  • the first rotating shaft 24, the second rotating shaft 25, the third rotating shaft 26 and the translation shaft 27 are damping rotating shafts, which can allow each link to stay at any position, so that the near-eye display screen stays at any position.
  • the third rotating shaft 26 includes a translation sleeve 261 and a first fixed disk 262 and a second fixed disk 263, and the first fixed disk 262 is disposed at the bottom of the translation sleeve 261.
  • the first fixed disk 262 can rotate relative to the two fixed disks 263 to realize the rotation of the third rotating shaft 26.
  • the second fixed plate 263 and the second connecting rod 22 are connected together, thereby connecting the third rotating shaft 26 and the second connecting rod 22 together.
  • an anti-dropping gasket 28 is provided between the first fixed disk 262 and the second fixed disk 263.
  • the translation shaft 27 can translate in the translation sleeve 231.
  • At least one boss 271 is provided at one end of the translation shaft 27, and the boss 271 can be buckled on the second fixing plate 263.
  • the translation shaft 27 and the second fixed plate 263 may be integrated.
  • a sleeve ring 272 is provided on the outer surface of the translation shaft 27, and the sleeve ring 272 can form friction with the translation sleeve 261 to realize the stop of the third rotating shaft 26 at any position.
  • a three-link mechanism is adopted to realize the free adjustment of the position of the near-eye display screen and store it in the smallest size; three degrees of freedom of rotation and one degree of translation freedom are adopted to realize the flexible adjustment of the near-eye display screen up, down, left, and right. Therefore, it can be stored conveniently, and the distance and angle can be flexibly adjusted, so that the near-eye display and the host product can be integrated into one. It can be opened when in use and folded and stored when not in use as needed. It is more convenient to use, and the product is more integrated, meets the integrity requirements of product design, and can effectively promote the productization of near-eye display technology, thereby solving the existing product structure. The distance and angle are limited, which affects near-eye viewing, and is not easy to store, and the product integrity is poor.
  • the near-eye display screen 30 is used for data interaction with the host 10 to display the audio and video data transmitted from the host 10.
  • the near-eye display screen 30 includes a display screen 31 and a near-eye display screen circuit board 32, and the display screen 31 and the near-eye display screen circuit board 32 are electrically connected by a cable 40.
  • the near-eye display circuit board 32 and the host circuit board 19 are electrically connected through a cable 40.
  • the cable 40 is a coaxial cable or a flexible printed circuit (FPC).
  • the near-eye display circuit board 32 is an FPC.
  • the second connecting rod 22 is hollow inside, and the near-eye display circuit board 32 can pass through the inner hollow position of the second connecting rod 22.
  • the first rotating shaft 24, the first connecting rod 21, and the second rotating shaft 25 are hollow inside, and the cable 40 is hollow from the inside of the first rotating shaft 24, and the inside of the first connecting rod 21 is hollow. It passes through the inner hollow of the second rotating shaft 25 and is electrically connected to the near-eye display circuit board 32 passing through the inner hollow position of the second connecting rod 22.
  • the third rotation shaft 26 and the translation shaft 27 are hollow inside, and the near-eye display circuit board 32 can pass through the inner hollow positions of the third rotation shaft 26 and the translation shaft 27, and The display screen 31 is connected.
  • the flat rotating shaft is used to facilitate the connection of the connecting rods, and the inner hollow of each connecting rod and each rotating shaft facilitates the cable connection between the hardware circuits of the connecting rods, and the circuit of different circuit boards in each connecting rod can be realized. connect.
  • the circuit board connection between the connecting rods adopts a coaxial cable, the friction of the circuit during the rotation process is small, and the service life is long.
  • the present invention provides a wearable device, the wearable device includes a device body 200, the near-eye display device 100 according to any one of the above embodiments, and the near-eye display device 100 Installed on the device body 200.
  • the near-eye display device 100 is the same as the near-eye display device 100 described in any of the foregoing embodiments.
  • the wearable device is a smart safety helmet or a smart safety helmet.
  • the near-eye display device adopts a linkage folding mechanism, that is, a three-link mechanism, to realize the free adjustment of the position of the near-eye display screen, and is stored in the smallest size; adopts three rotational degrees of freedom and one translation
  • the degree of freedom realizes the flexible adjustment of the near-eye display screen up, down, left, and right. Therefore, it can be convenient to store, but also can flexibly adjust the distance and angle, so that the near-eye display and wearable device products can be integrated into one.
  • the integrated design of the wearable device product can be opened when in use and folded when not in use as needed. It is more convenient to use, and the product is more integrated.
  • the use of wearable devices to share the weight of the near-eye display can reduce the weight of the near-eye display on the head, so that the near-eye display can be worn for a long time, which can solve common problems.
  • the near-eye display is mainly loaded by the bridge of the nose, which makes it uncomfortable to wear for a long time.
  • An embodiment of the present invention provides a near-eye display device and a wearable device.
  • the near-eye display device includes a host, a link folding mechanism, and a near-eye display screen.
  • the display screen is connected, and the near-eye display screen is received or opened from the host through the link folding mechanism.
  • the connecting rod folding mechanism the near-eye display screen is well integrated with the host after being stored, and the integrated design of the near-eye display screen and the host is realized. It is more convenient and the product is more integrated. Therefore, it has industrial applicability.

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  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Devices For Indicating Variable Information By Combining Individual Elements (AREA)
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Abstract

一种近眼显示装置（100）及可穿戴设备，近眼显示装置（100）包括主机（10）、连杆折叠机构（20）、近眼显示屏（30），其中：连杆折叠机构（20）分别与主机（10）和近眼显示屏（30）连接，通过连杆折叠机构（20）将近眼显示屏（30）从主机（10）收纳或打开。采用连杆折叠机构（20）方式，将近眼显示屏（30）收纳到主机（10）内部或下方，和主机（10）产品融合形成一体，近眼显示屏（30）收纳后和主机（10）很好融合，实现了近眼显示屏（30）和主机（10）的一体化设计，根据需要在使用时打开，不用时折叠收藏，使用更加便利，产品整体性更强，从而解决现有产品机构庞大，调节距离、角度受限，影响近眼观看，且不好收纳，产品完整性差的问题。

Description

一种近眼显示装置及可穿戴设备 技术领域
本发明涉及电子设备领域，特别涉及一种近眼显示装置及可穿戴设备。
 背景技术
随着各种近眼显示技术的日趋成熟，利用该技术的产品不断涌现，如AR（Argument Reality，增强现实）/VR（Virtual Reality，虚拟现实）眼镜、AR/VR头盔等等。
当前，现有的近眼显示技术采用的是光学透视显示，基本原理如图1所示。由于近眼显示屏应用时要求靠近人眼，且屏幕和眼球的距离及角度需满足显示屏的出瞳距离及视场角的要求，距离太远或太近，或偏移视场角，人眼都无法看到清晰完整的图像，当这种显示屏应用在头戴产品上时，由于不同人的头部大小、眼睛在面部的位置尺寸存在差异，导致产品穿戴到头部后，显示屏位置和眼睛的相对位置存在较大差异，调节距离受限，影响近眼观看。并且，在一些工业应用领域，使用者经常是间歇性的观看显示屏，并不需要长时间观看显示屏，但由于产品机构庞大，不好收纳，产品完整性差。
 技术问题
有鉴于此，本发明实施例提供的一种近眼显示装置及可穿戴设备，采用连杆折叠机构方式，近眼显示屏收纳后和主机很好融合，实现了近眼显示屏和主机的一体化设计，根据需要在使用时打开，不用时折叠收藏，使用更加便利，产品整体性更强，从而解决现有产品机构庞大，调节距离、角度受限，影响近眼观看，且不好收纳，产品完整性差的问题。
 技术解决方案
本发明解决上述技术问题所采用的技术方案如下：根据本发明实施例的一个方面，提供的一种近眼显示装置，所述近眼显示装置包括主机、连杆折叠机构、近眼显示屏，其中：所述连杆折叠机构分别与所述主机和所述近眼显示屏连接，通过所述连杆折叠机构将所述近眼显示屏从所述主机收纳或打开。在一个可能的设计中，所述主机包括：主机本体和主机电路板，所述主机电路板位于所述主机本体内。
在一个可能的设计中，所述连杆折叠机构包括：第一连杆、第二连杆、第三连杆、第一旋转轴、第二旋转轴、第三旋转轴；其中：所述第一旋转轴与所述主机本体连接；所述第一连杆与所述第一旋转轴连接，通过所述第一旋转轴将第一连杆和所述主机本体连接在一起；所述第一连杆和所述第二连杆通过所述第二旋转轴连接在一起，收纳时所述第一连杆和所述第二连杆重叠在一起；所述第二连杆和所述第三连杆通过所述第三旋转轴连接在一起，实现所述第三连杆的旋转。
在一个可能的设计中，所述近眼显示屏设置在所述第三连杆上，通过所述第三连杆的旋转带动所述近眼显示屏调节。
在一个可能的设计中，所述连杆折叠机构还包括平移轴，所述平移轴连接在所述第三旋转轴上。
在一个可能的设计中，所述第三旋转轴包括平移套筒、第一固定盘和第二固定盘，所述第一固定盘设置在所述平移套筒的底部，所述第一固定盘相对于所述二固定盘进行转动。
在一个可能的设计中，所述第二固定盘与所述第二连杆连接在一起，从而将所述第三旋转轴与所述第二连杆连接在一起。
在一个可能的设计中，所述平移轴在所述平移套筒内平移；所述平移轴的一端至少设置有一个凸台，所述凸台卡扣在所述第二固定盘。
在一个可能的设计中，所述平移轴的外表面设置有一套环。
在一个可能的设计中，所述近眼显示屏包括显示屏和近眼显示屏电路板，所述显示屏和近眼显示屏电路板通过线缆进行电性连接，所述近眼显示屏电路板与所述主机电路板通过线缆进行电性连接。
在一个可能的设计中，所述第二连杆的内部中空，所述近眼显示屏电路板从所述第二连杆的内部中空位置中穿过；所述第三旋转轴和所述平移轴的内部中空，所述近眼显示屏电路板从所述第三旋转轴和所述平移轴的内部中空位置中穿过，与所述显示屏连接。在一个可能的设计中，所述第一旋转轴、第一连杆和所述第二旋转轴的内部中空，线缆从所述第一旋转轴的内部中空、第一连杆的内部中空和所述第二旋转轴的内部中空穿过，与所述近眼显示屏电路板进行电性连接。
根据本发明实施例的另一个方面，提供的一种可穿戴设备，所述可穿戴设备包括设备本体和本发明任一实施例所述的近眼显示装置，所述近眼显示装置安装在所述设备本体上。
 有益效果
与相关技术相比，本发明实施例提供的一种近眼显示装置及可穿戴设备，所述近眼显示装置包括主机、连杆折叠机构、近眼显示屏，其中：所述连杆折叠机构分别与所述主机和所述近眼显示屏连接，通过所述连杆折叠机构将所述近眼显示屏从所述主机收纳或打开。通过本发明实施例，通过采用连杆折叠机构方式，近眼显示屏收纳后和主机很好融合，实现了近眼显示屏和主机的一体化设计，根据需要在使用时打开，不用时折叠收藏，使用更加便利，产品整体性更强，从而解决现有产品机构庞大，调节距离、角度受限，影响近眼观看，且不好收纳，产品完整性差的问题。
 附图说明
图1为现有的近眼显示技术采用的光学透视显示的基本原理示意图。
图2为本发明提供的一种近眼显示装置的结构示意图。
图3为本发明提供的一种近眼显示装置的连杆折叠机构的结构示意图。
图4为本发明提供的一种近眼显示装置的近眼显示屏的收纳示意图。
图5为本发明提供的一种近眼显示装置的主机和近眼显示屏之间的电缆连接示意图。
图6为本发明提供的一种近眼显示装置的旋转轴和平移轴的结构示意图。
图7为本发明提供的一种可穿戴设备的结构示意图。
本发明目的的实现、功能特点及优点将结合实施例，参照附图做进一步说明。
 本发明的实施方式
为了使本发明所要解决的技术问题、技术方案及有益效果更加清楚、明白，以下结合附图和实施例，对本发明进行进一步详细说明。应当理解，此处所描述的具体实施例仅以解释本发明，并不用于限定本发明。
在后续的描述中，使用用于表示元件的诸如“模块”、“部件”或“单元”的后缀仅为了有利于本发明的说明，其本身没有特定的意义。因此，“模块”、“部件”或“单元”可以混合地使用。
需要说明的是，本发明的说明书和权利要求书及上述附图中的术语“第一”、“第二”等是用于区别类似的对象，而不必用于描述特定的顺序或先后次序。
在一个实施例中，如图2所示，本发明提供一种近眼显示装置，所述近眼显示装置100包括主机10、连杆折叠机构20、近眼显示屏30，其中：所述连杆折叠机构20分别与所述主机10和所述近眼显示屏30连接，通过所述连杆折叠机构20将所述近眼显示屏30从所述主机10收纳或打开。
在本实施例中，通过采用连杆折叠机构方式，将近眼显示屏收纳到主机内部或下方，和主机产品融合形成一体，近眼显示屏收纳后和主机很好融合，实现了近眼显示屏和主机的一体化设计，根据需要在使用时打开，不用时折叠收藏，使用更加便利，产品整体性更强，从而解决现有产品机构庞大，调节距离、角度受限，影响近眼观看，且不好收纳，产品完整性差的问题。
在一个实施例中，如图3和图5所示，所述主机10，用于将音视频数据传输给所述近眼显示屏30。
所述主机10包括主机本体16和主机电路板19，所述主机电路板19位于所述主机本体16内。
在一个实施例中，如图3所示，所述连杆折叠机构20包括：第一连杆21、第二连杆22、第三连杆23、第一旋转轴24、第二旋转轴25、第三旋转轴26、平移轴27。
其中：所述第一旋转轴24与所述主机本体16连接。
所述第一连杆21与所述第一旋转轴24连接，通过所述第一旋转轴24将第一连杆21和所述主机本体16连接在一起。
所述第一连杆21和所述第二连杆22通过第二旋转轴25连接在一起。通过设计所述第一连杆21和所述第二连杆22的长度来调整收纳尺寸和近眼显示屏的调节范围。收纳时所述第一连杆21和第二连杆22重叠在一起，以达到最小收纳尺寸的目的。如图4所示。
所述第二连杆22与第三旋转轴26连接在一起，所述第三连杆23固定连接在所述第三旋转轴上，可以随所述第三旋转轴进行旋转，以实现第三连杆23的旋转。
所述平移轴，连接在所述第三旋转轴26上，通过所述平移轴实现所述第三连杆的平移。
所述近眼显示屏30设置在所述第三连杆23上，通过所述第三连杆23的旋转和平移带动近眼显示屏30灵活调节对正观察眼。
优选的，所述第一旋转轴24、第二旋转轴25、第三旋转轴26为扁平旋转轴。
优选的，所述第一旋转轴24、第二旋转轴25、第三旋转轴26和平移轴27为阻尼转轴，可以让各连杆在任意位置停留，从而实现近眼显示屏在任意位置停留。
如图6所示，所述第三旋转轴26包括平移套筒261和第一固定盘262和第二固定盘263，所述第一固定盘262设置在所述平移套筒261的底部。所述第一固定盘262可相对于所述二固定盘263进行转动，从而实现所述第三旋转轴26旋转。
所述第二固定盘263与所述第二连杆22连接在一起，从而将所述第三旋转轴26与所述第二连杆22连接在一起。
优选的，所述第一固定盘262与所述第二固定盘263之间设置有防脱垫片28。
所述平移轴27可以在所述平移套筒231内平移。
所述平移轴27的一端至少设置有一个凸台271，所述凸台271可卡扣在所述第二固定盘263。
优选地，所述平移轴27与所述第二固定盘263可以为一体。
优选的，所述平移轴27的外表面设置有一套环272，所述套环272可以与所述平移套筒261形成摩擦，实现所述第三旋转轴26任意位置的停留。
在本实施例中，通过采用三连杆机构，实现近眼显示屏位置的自由调节，且以最小尺寸收纳；采用三个旋转自由度及一个平移自由度，实现近眼显示屏上下左右前后灵活调节。从而可以做到既方便收纳，又可灵活调节距离和角度，使近眼显示屏和主机产品融合形成一体，近眼显示屏收纳后和主机很好融合，实现了近眼显示屏和主机的一体化设计，根据需要在使用时打开，不用时折叠收藏，使用更加便利，产品整体性更强，满足产品外观设计的完整性要求，可以有力促进近眼显示技术的产品化，从而解决现有产品机构庞大，调节距离、角度受限，影响近眼观看，且不好收纳，产品完整性差的问题。
在一个实施例中，如图5所示，所述近眼显示屏30，用于与所述主机10进行数据交互，显示所述主机10传输过来的所述音视频数据。
所述近眼显示屏30包括显示屏31和近眼显示屏电路板32，所述显示屏31和近眼显示屏电路板32通过线缆40进行电性连接。
所述近眼显示屏电路板32与所述主机电路板19通过线缆40进行电性连接。所述线缆40为同轴电缆或柔性电路板（Flexible Printed Circuit，FPC）。
优选的，所述近眼显示屏电路板32为FPC。
所述第二连杆22的内部中空，所述近眼显示屏电路板32可从所述第二连杆22的内部中空位置中穿过。
所述第一旋转轴24、第一连杆21和所述第二旋转轴25的内部中空，所述线缆40从所述第一旋转轴24的内部中空、第一连杆21的内部中空和所述第二旋转轴25的内部中空穿过，与从所述第二连杆22的内部中空位置中穿过的所述近眼显示屏电路板32进行电性连接。
所述第三旋转轴26和所述平移轴27的内部中空，所述近眼显示屏电路板32可从所述第三旋转轴26和所述平移轴27的内部中空位置中穿过，与所述显示屏31连接。
在本实施例中，通过采用扁平旋转轴便于各连杆连接，各连杆和各旋转轴内部中空便于各连杆硬件电路之间的电缆连接，可以实现各连杆内的不同电路板的线路连接。各连杆间的电路板连接采用同轴电缆，线路在旋转过程摩擦小，寿命高。
在一个实施例中，如图7所示，本发明提供一种可穿戴设备，所述可穿戴设备包括设备本体200、上述任一实施例所述的近眼显示装置100，所述近眼显示装置100安装在所述设备本体200上。
在本实施例中，所述近眼显示装置100和上述任一实施例所述的近眼显示装置100是一样的，具体的结构可以参考上述任一实施例所述的近眼显示装置100，在此不再详述。
优选的，所述可穿戴设备为智能安全帽或智能安全头盔。
在本实施例中，所述近眼显示装置通过采用连杆折叠机构方式，即采用三连杆机构，实现近眼显示屏位置的自由调节，且以最小尺寸收纳；采用三个旋转自由度及一个平移自由度，实现近眼显示屏上下左右前后灵活调节。从而可以做到既方便收纳，又可灵活调节距离和角度，使近眼显示屏和可穿戴设备产品融合形成一体，近眼显示屏收纳后和可穿戴设备产品很好融合，实现了近眼显示屏和可穿戴设备产品的一体化设计，根据需要在使用时打开，不用时折叠收藏，使用更加便利，产品整体性更强，满足产品外观设计的完整性要求，从而解决现有产品机构庞大，调节距离、角度受限，影响近眼观看，且不好收纳，产品完整性差的问题。并且，通过近眼显示屏和可穿戴设备的融合，利用可穿戴设备分担近眼显示屏的重量，可以减轻头部的近眼显示屏配重，使近眼显示屏可以适合长时间佩戴，能很好解决普通近眼显示屏主要由鼻梁承重，长时间佩戴不适的问题。
需要说明的是，在本文中，术语“包括”、“包含”或者其任何其他变体意在涵盖非排他性的包含，从而使得包括一系列要素的过程、方法、物品或者装置不仅包括那些要素，而且还包括没有明确列出的其他要素，或者是还包括为这种过程、方法、物品或者装置所固有的要素。在没有更多限制的情况下，由语句“包括一个……”限定的要素，并不排除在包括该要素的过程、方法、物品或者装置中还存在另外的相同要素。
上面结合附图对本发明的实施例进行了描述，但是本发明并不局限于上述的具体实施方式，上述的具体实施方式仅仅是示意性的，而不是限制性的，本领域的普通技术人员在本发明的启示下，在不脱离本发明宗旨和权利要求所保护的范围情况下，还可做出很多形式，这些均属于本发明的保护之内。
 工业实用性
本发明实施例提供的一种近眼显示装置及可穿戴设备，所述近眼显示装置包括主机、连杆折叠机构、近眼显示屏，其中：所述连杆折叠机构分别与所述主机和所述近眼显示屏连接，通过所述连杆折叠机构将所述近眼显示屏从所述主机收纳或打开。通过本发明实施例，通过采用连杆折叠机构方式，近眼显示屏收纳后和主机很好融合，实现了近眼显示屏和主机的一体化设计，根据需要在使用时打开，不用时折叠收藏，使用更加便利，产品整体性更强。因此，具有工业实用性。

Claims (13)

  1. 一种近眼显示装置，所述近眼显示装置包括主机、连杆折叠机构、近眼显示屏，其中：所述连杆折叠机构分别与所述主机和所述近眼显示屏连接，通过所述连杆折叠机构将所述近眼显示屏从所述主机收纳或打开。
  2. 根据权利要求1所述的近眼显示装置，其中，所述主机包括：主机本体和主机电路板，所述主机电路板位于所述主机本体内。
  3. 根据权利要求2所述的近眼显示装置，其中，所述连杆折叠机构包括：第一连杆、第二连杆、第三连杆、第一旋转轴、第二旋转轴、第三旋转轴；其中：
    所述第一旋转轴与所述主机本体连接；
    所述第一连杆与所述第一旋转轴连接，通过所述第一旋转轴将第一连杆和所述主机本体连接在一起；
    所述第一连杆和所述第二连杆通过所述第二旋转轴连接在一起，收纳时所述第一连杆和所述第二连杆重叠在一起；
    所述第二连杆和所述第三连杆通过所述第三旋转轴连接在一起，实现所述第三连杆的旋转。
  4. 根据权利要求3所述的近眼显示装置，其中，所述近眼显示屏设置在所述第三连杆上，通过所述第三连杆的旋转带动所述近眼显示屏调节。
  5. 根据权利要求3所述的近眼显示装置，其中，所述连杆折叠机构还包括平移轴，所述平移轴连接在所述第三旋转轴上。
  6. 根据权利要求5所述的近眼显示装置，其中，所述第三旋转轴包括平移套筒、第一固定盘和第二固定盘，所述第一固定盘设置在所述平移套筒的底部，所述第一固定盘相对于所述二固定盘进行转动。
  7. 根据权利要求6所述的近眼显示装置，其中，所述第二固定盘与所述第二连杆连接在一起，从而将所述第三旋转轴与所述第二连杆连接在一起。
  8. 根据权利要求7所述的近眼显示装置，其特征在于，所述平移轴在所述平移套筒内平移；所述平移轴的一端至少设置有一个凸台，所述凸台卡扣在所述第二固定盘。
  9. 根据权利要求5所述的近眼显示装置，其中，所述平移轴的外表面设置有一套环。
  10. 根据权利要求3所述的近眼显示装置，其中，所述近眼显示屏包括显示屏和近眼显示屏电路板，所述显示屏和近眼显示屏电路板通过线缆进行电性连接，所述近眼显示屏电路板与所述主机电路板通过线缆进行电性连接。
  11. 根据权利要求10所述的近眼显示装置，其中，所述第二连杆的内部中空，所述近眼显示屏电路板从所述第二连杆的内部中空位置中穿过；所述第三旋转轴和所述平移轴的内部中空，所述近眼显示屏电路板从所述第三旋转轴和所述平移轴的内部中空位置中穿过，与所述显示屏连接。
  12. 根据权利要求10所述的近眼显示装置，其中，所述第一旋转轴、第一连杆和所述第二旋转轴的内部中空，线缆从所述第一旋转轴的内部中空、第一连杆的内部中空和所述第二旋转轴的内部中空穿过，与所述近眼显示屏电路板进行电性连接。
  13. 一种可穿戴设备，所述可穿戴设备包括设备本体、如权利要求1至12任一实施例所述的近眼显示装置，所述近眼显示装置安装在所述设备本体上。
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