WO2018049624A1 - 头戴显示设备 - Google Patents

头戴显示设备 Download PDF

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Publication number
WO2018049624A1
WO2018049624A1 PCT/CN2016/099107 CN2016099107W WO2018049624A1 WO 2018049624 A1 WO2018049624 A1 WO 2018049624A1 CN 2016099107 W CN2016099107 W CN 2016099107W WO 2018049624 A1 WO2018049624 A1 WO 2018049624A1
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Prior art keywords
pins
display device
mounted display
cable
head
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PCT/CN2016/099107
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English (en)
French (fr)
Inventor
陈卓
邓伍华
郭继龙
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深圳市柔宇科技有限公司
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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 CN201680036059.3A priority Critical patent/CN107980104A/zh
Priority to PCT/CN2016/099107 priority patent/WO2018049624A1/zh
Publication of WO2018049624A1 publication Critical patent/WO2018049624A1/zh

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    • 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
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N13/00—Stereoscopic video systems; Multi-view video systems; Details thereof

Definitions

  • the present invention relates to a near head mounted display device, and more particularly to a head mounted display device in which a display unit and a hand held unit are detachable.
  • the head-mounted display device is an electronic device that uses a near-eye display technology to allow a user to see an enlarged virtual image, and generally includes a housing and a display screen housed in the housing and a lens module matched with the display screen, the above-mentioned one display unit .
  • the image light from the display is incident on the user's eyes through the lens module, allowing the user to see the dotted line.
  • part of the functional circuit is usually set to a hand-held terminal unit, and the terminal unit is connected to the display unit through a cable to realize transmission of signals and power.
  • the existing head-mounted display device usually fixes both ends of the cable to the display unit and the terminal unit, which is inconvenient for the user to use. For example, when charging, the entire device needs to be moved to the charging position accessory, and the contents of the respective device are exchanged for viewing. It is necessary to exchange wearing a display unit or the like.
  • the present invention is directed to a head mounted display device that is more user friendly.
  • One embodiment of the present invention provides a head mounted display device including a display unit, a cable, and a terminal unit.
  • the display unit is configured to project an image beam corresponding to the image signal to the user's eye according to the image signal to see the enlarged image virtual image.
  • One end of the cable is fixedly connected to the display unit.
  • the terminal unit is detachably fixed to the other end of the cable with respect to the one end, and the image signal is supplied to the display unit through the cable.
  • the user can take the terminal unit to charge or exchange the terminal unit during use, for example, when the terminal unit needs to be charged, and the content needs to be exchanged for viewing, etc., without involving
  • the display unit is convenient for the user to use.
  • FIG. 1 is a schematic diagram of a head mounted display device provided by an embodiment of the present invention.
  • FIG. 2 is a schematic view of the terminal unit of FIG. 1 when it is not connected to a cable.
  • FIG. 3 is a schematic diagram of respective pins of the interface of the terminal unit and the cable of FIG. 1.
  • a head mounted display device 100 includes a display unit 10 , a terminal unit 20 , and a cable 30 .
  • the display unit 10 is configured to project an image beam corresponding to the image signal to the user's eye according to the image signal to see the enlarged image virtual image.
  • the near-eye display technology used by the display unit 10 is a technique well known to those skilled in the art, and the description is not described herein.
  • One end of the cable 30 is fixedly connected to the display unit 20.
  • the terminal unit 20 is detachably fixed to the other end of the cable 30 with respect to the one end, and the image signal is supplied to the display unit 10 through the cable 30.
  • the main control CPU and the peripheral auxiliary circuit can be set inside the terminal unit 20, and a battery is also set.
  • the display unit 10 can be provided with a slave MCU of the auxiliary main control CPU and necessary functional circuit modules, such as an audio decoding circuit module and a video decoding circuit module, and each circuit module has its own control IC to control each module to realize each.
  • the control CPU transmits signals between the slave MCU, the control IC, and the like through the cable 30, and the battery of the terminal unit 20 also supplies power to the display unit 10 through the cable 30.
  • the user can hold the terminal unit 20 to charge or exchange the terminal unit during use, such as when the terminal unit 20 needs to be charged, and the viewing content needs to be exchanged. 20 can be used without involving the display unit 10, which is convenient for the user.
  • the terminal unit 20 includes a high-definition multimedia interface (High) for transmitting an I2C bus (Inter-Integrated Circuit Bus) signal, a Universal Asynchronous Receiver/Transmitter (UART) signal, and carrying the image signal.
  • the I2C bus is a bidirectional two-wire continuous bus on which I2C signals are transmitted to provide communication between integrated circuits (ICs), such as control signals between the master CPU and the control IC.
  • UART is a universal serial data bus for asynchronous communication. The bus can realize full-duplex transmission and receive asynchronous transmission and reception signals.
  • the UART signal is usually used to communicate with the host and auxiliary equipment, such as the above-mentioned main control CPU and Controlling communication between MCUs.
  • the interface capable of transmitting the signals of the above multiple formats can meet the image signal transmission requirement between the terminal unit 20 and the display unit 10, and can also satisfy the control between the master CPU and the slave MCU and the control IC.
  • the communication requirements are very suitable for the above-described head mounted display device 100.
  • the first interface 22 and the second interface 32 have two rows of pins disposed opposite each other.
  • the first and second interfaces 22, 32 preferably each have 24 pins, each row having 12 pins.
  • the first and second interfaces 22 and 32 may be a USB Type-C parent interface and a public interface.
  • the specific pin format and the arrangement manner may be set according to specific conditions, and may not be limited to the above embodiments.
  • each of the rows of pins of the first and second interfaces 22, 32 is provided with two sets of pins for transmitting HDMI high frequency signals, and at least three are provided between the two sets of pins.
  • a pin that transmits low frequency signals For example, A2 and A3 of row A are provided with two pins for transmitting DATA0- and DATA0+ of high frequency signals in HMDI signals. A10 and A11 are provided with two DATA1-, DATA1+ for transmitting HMDI signals.
  • a set of high-frequency signal pins; B and B3 of row B are provided with two pins for transmitting DATA2- and DATA2+ high-frequency signals in the HMDI signal, and A10 and A11 are provided with two for transmission.
  • CLK-, CLK+ in the HMDI signal A set of high-frequency signal pins.
  • Low frequency signals are transmitted on pins A4 to A9 and B4 to B9.
  • the two sets of high frequency signals are separated by a plurality of pins, for example, six are spaced apart in the present embodiment, which is advantageous for reducing transmission between high frequency signals.
  • each of the rows of pins of the first and second interfaces 22, 32 is provided with a ground pin at a position on opposite sides thereof.
  • the A1 and A12 pins on opposite sides of the A row, and the B1 and B12 pins on the opposite sides of the B row are all set as ground pins. This arrangement is beneficial to reduce the external electromagnetic radiation of the above high frequency signal.
  • the I2C bus signal occupies two pins, and the two pins are located in the respective rows of pins of the first and second interfaces, respectively.
  • A7 of row A and B7 of row B are the serial clock line SCL and the serial data line SDA in the I2C bus, respectively.
  • the UART signal occupies two pins, and the two pins are located in the respective rows of pins of the first and second interfaces, respectively.
  • A5 of row A and B6 of row B are respectively two signal lines TDX and RXD in the UART signal.
  • the above I2C bus signal and UART signal are both low frequency signals.
  • the first and second interfaces 22, 32 are included in each row of pins.
  • the cable 30 may also be a standard HMDI line, or between the display unit and the terminal unit 20.
  • Cable 30 can also be a standard USB Type A or B when only audio and video signals with low data traffic or simple control signals are transmitted.
  • the cable can be selected according to the specific circumstances and the corresponding standard cable, as long as the above pluggable functions can be realized.

Abstract

一种头戴显示设备(100)，包括显示单元(10)、线缆(30)及终端单元(20)；显示单元(10)用于根据图像信号向用户眼睛投射对应该图像信号的图像光束使其看到放大的图像虚像；线缆(30)一端固定连接至该显示单元(10)；终端单元(20)可插拔地固定至该线缆(30)相对上述一端的另一端，通过该线缆(30)向该显示单元(10)提供上述图像信号。终端单元(20)与线缆(30)之间可插拔的设计方便了用户的使用。

Description

头戴显示设备 技术领域
本发明涉及近头戴显示设备，尤其涉及一种显示单元及手持单元可分离的头戴显示设备。
背景技术
头戴显示设备是利用近眼显示技术让用户看到放大的虚像的电子设备，其通常包括外壳及容置于该外壳内的显示屏和与该显示屏匹配的镜头模组，上述构成一个显示单元。显示屏发出的图像光线通过镜头模组入射用户眼睛，从而使用户看到虚线。为了降低佩戴在头上的显示单元的重量，通常会将部分功能电路设置至一个可手持的终端单元上，终端单元通过线缆连接到显示单元实现信号和电源的传输。现有的头戴显示设备通常将线缆的两端固定至显示单元及终端单元，这对用户使用造成不便，比如要充电时需将整个设备移动至充电位置附件，要交换观看各自设备的内容时需要交换佩戴显示单元等。
发明内容
本发明旨在提供一种能更便于用户使用的的头戴显示设备。
本发明一个实施方式提供一种头戴显示设备，包括显示单元、线缆及终端单元。显示单元用于根据图像信号向用户眼睛投射对应该图像信号的图像光束使其看到放大的图像虚像。线缆一端固定连接至该显示单元。终端单元可插拔地固定至该线缆相对上述一端的另一端，通过该线缆向该显示单元提供上述图像信号。
通过设置线缆与终端单元可插拔，用户可在使用过程中，比如需要将终端单元进行充电、需要交换观看内容等的时候，拿着终端单元去充电或者交换终端单元便可，无需涉及到显示单元，方便了用户的使用。
附图说明
下列附图用于结合具体实施方式详细说明本发明的各个实施方式。应当理解，附图中示意出的各元件并不代表实际的大小及比例关系，仅是为了清楚说明而示意出来的示意图，不应理解成对本发明的限制。
图1是本发明的一个实施方式提供的头戴显示设备的示意图。
图2是图1的终端单元不与线缆连接时单独的示意图。
图3是图1的终端单元及线缆的接口的各个引脚示意图。
具体实施方式
为了使本发明的目的、技术方案及优点更加清楚明白，以下结合多个实施方式及附图，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方式仅仅用以解释本发明，并不用于限定本发明。
请参阅图1及图2，本发明一个实施方式所提供的头戴显示设备100包括显示单元10、终端单元20及线缆30。显示单元10用于根据图像信号向用户眼睛投射对应该图像信号的图像光束使其看到放大的图像虚像。显示单元10使用的近眼显示技术是本领域技术人员所熟知的技术，本说明书不做赘述。线缆30的一端固定连接至显示单元20。终端单元20可插拔地固定至线缆30相对上述一端的另一端，通过线缆30向显示单元10提供上述图像信号。终端单元20内部可设置主控CPU及周边辅助电路，同时也设置了电池。而显示单元10内部则可设置辅助主控CPU的从控MCU及必要的功能电路模块，比如音频解码电路模块、视频解码电路模块等，各电路模块都有自己的控制IC以控制各模块实现各自的功能。主 控CPU与从控MCU、控制IC等之间通过线缆30传输信号，终端单元20的电池也通过线缆30向显示单元10供电。
如此，通过设置线缆30与终端单元20可插拔，用户可在使用过程中，比如需要将终端单元20进行充电、需要交换观看内容等的时候，拿着终端单元20去充电或者交换终端单元20便可，无需涉及到显示单元10，方便了用户的使用。
具体地，终端单元20包括一个用于传输I2C总线(Inter－Integrated Circuit Bus)信号、通用异步收发传输器(Universal Asynchronous Receiver/Transmitter，UART)信号及携带上述图像信号的高清晰度多媒体接口(High Definition Multimedia Interface，HDMI)信号的第一接口22，线缆30包括一个对应的第二接口32。I2C总线是一个双向的两线连续总线，其上传输的I2C信号用于提供集成电路(ICs)之间的通信，比如上述主控CPU与控制IC等之间的控制信号的通信。UART是一种通用串行数据总线，用于异步通信，该总线双向通信，可以实现全双工传输和接收异步收发传输信号，UART信号通常用与主机与辅助设备通信，如上述主控CPU与从控MCU之间的通信。如此，可传输了上述多种格式的信号的接口，既能符合终端单元20与显示单元10之间的图像信号传输需求，也能满足主控CPU与从控MCU及控制IC之间的控制及通信需求，非常适用于上述头戴显示设备100。
请结合图3，该第一接口22及第二接口32都具有相对设置的两排引脚。在本实施方式中，所述第一及第二接口22、32优选地都具有24个引脚，各排具有12个引脚。如此，上述第一及第二接口22、32可以是USB的Type-C的母接口及公接口。当然，在其它实施方式中，具体的引脚格式及排配方式可根据具体情况设定，可不限于上述实施方式。
优选地，第一及第二接口22、32的各排引脚中，都设置有两组用于传输HDMI高频信号的引脚，并且该两组引脚之间设置有至少三个用于传输低频信号的引脚。比如，A排的A2及A3设置有两个用于传输HMDI信号中的DATA0-及DATA0+一组高频信号的引脚，A10及A11设置有两个用于传输HMDI信号中的DATA1-、DATA1+一组高频信号的引脚；而B排的B2及B3设置有两个用于传输HMDI信号中的DATA2-及DATA2+一组高频信号的引脚，A10及A11设置有两个用于传输HMDI信号中的CLK-、CLK+一组高频信号的引脚。A4至A9以及B4至B9引脚上传输的都是低频信号。将两组高频信号间隔多个引脚，比如本实施方式中间隔了6个，有利于减少高频信号间的传输。
更优选地，第一及第二接口22、32的各排引脚中，该两组用于传输HDMI高频信号的引脚分别位于靠近各排相对两侧的位置。如此，更有利于拉开该两组高频信号的引脚之间的距离。同时更优选地，第一及第二接口22、32的各排引脚中，位于其相对两侧的位置各设置有接地引脚。比如位于A排相对两侧的A1及A12引脚，B排相对两侧的B1及B12引脚都设置为接地引脚，如此的设置方式有利于降低上述高频信号对外的电磁辐射。
具体地，I2C总线信号占用两个引脚，并且该两个引脚位于分别位于所述第一及第二接口的各排引脚中。比如，A排的A7及B排的B7分别是I2C总线中的串行时钟线SCL及串行数据线SDA。UART信号占用两个引脚，并且该两个引脚位于分别位于所述第一及第二接口的各排引脚中。比如，A排的A5及B排的B6分别是UART信号中的两个信号线TDX及RXD。上述I2C总线信号及UART信号都是低频信号。另外，为增加整个线缆30能降低的能耗，第一及第二接口22、32的各排引脚中都包括 一个用于传输高电平的引脚，比如A排的A9及B排的B4引脚。
应当指出的是，在其它实施方式中，当显示单元10与终端单元20之间无需传输复杂的控制信号时，线缆30也可以是标准的HMDI线，或者当显示单元与终端单元20之间只需传输数据流量较小的音视频信号或简单的控制信号时，线缆30也可以是标准的USB Type A或B。总之，线缆可以根据具体情况选择适当的传输格式及对应的标准线缆，只要能实现上述可插拔的功能便可。
以上所述仅为本发明的较佳实施方式而已，并不用以限制本发明，凡在本发明的精神和原则之内所作的任何修改、等同替换和改进等，均应包含在本发明的保护范围之内。

Claims (10)

  1. 一种头戴显示设备，包括：
    显示单元，用于根据图像信号向用户眼睛投射对应该图像信号的图像光束使其看到放大的图像虚像；
    线缆，其一端固定连接至该显示单元；
    终端单元，其可插拔地固定至该线缆相对上述一端的另一端，通过该线缆向该显示单元提供上述图像信号。
  2. 如权利要求1所述的头戴显示设备，其特征在于，该终端单元包括一个用于传输I2C总线信号、UART信号及携带上述图像信号的HDMI信号的第一接口，该线缆包括一个对应的第二接口。
  3. 如权利要求2所述的头戴显示设备，其特征在于，该第一接口及第二接口都具有相对设置的两排引脚。
  4. 如权利要求3所述的头戴显示设备，其特征在于，所述第一及第二接口都具有24个引脚，各排具有12个引脚。
  5. 如权利要求3所述的头戴显示设备，其特征在于，所述第一及第二接口的各排引脚中，都设置有两组用于传输HDMI高频信号的引脚，并且该两组引脚之间设置有至少三个用于传输低频信号的引脚。
  6. 如权利要求5所述的头戴显示设备，其特征在于，所述第一及第二接口的各排引脚中，该两组用于传输HDMI高频信号的引脚分别位于靠近各排相对两侧的位置。
  7. 如权利要求6所述的头戴显示设备，其特征在于，所述第一及第二接 口的各排引脚中，位于其相对两侧的位置各设置有接地引脚。
  8. 如权利要求5所述的头戴显示设备，其特征在于，所述I2C总线信号占用两个引脚，并且该两个引脚位于分别位于所述第一及第二接口的各排引脚中。
  9. 如权利要求5所述的头戴显示设备，其特征在于，所述UART信号占用两个引脚，并且该两个引脚位于分别位于所述第一及第二接口的各排引脚中。
  10. 如权利要求3所述的头戴显示设备，其特征在于，所述第一及第二接口的各排引脚中都包括一个用于传输高电平的引脚。
PCT/CN2016/099107 2016-09-14 2016-09-14 头戴显示设备 WO2018049624A1 (zh)

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CN113904401A (zh) * 2019-11-04 2022-01-07 优奈柯恩(北京)科技有限公司 供电终端和可穿戴系统

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