WO2017185557A1 - 一种虚拟现实头盔全屏驱动显示方法及其虚拟现实头盔 - Google Patents

一种虚拟现实头盔全屏驱动显示方法及其虚拟现实头盔 Download PDF

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WO2017185557A1
WO2017185557A1 PCT/CN2016/094003 CN2016094003W WO2017185557A1 WO 2017185557 A1 WO2017185557 A1 WO 2017185557A1 CN 2016094003 W CN2016094003 W CN 2016094003W WO 2017185557 A1 WO2017185557 A1 WO 2017185557A1
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screen
display
liquid crystal
picture frame
eyepiece
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PCT/CN2016/094003
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English (en)
French (fr)
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孙其民
李炜
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深圳市掌网科技股份有限公司
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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
    • G02B27/0101—Head-up displays characterised by optical features
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B30/00—Optical systems or apparatus for producing three-dimensional [3D] effects, e.g. stereoscopic images
    • G02B30/20—Optical systems or apparatus for producing three-dimensional [3D] effects, e.g. stereoscopic images by providing first and second parallax images to an observer's left and right eyes
    • G02B30/22—Optical systems or apparatus for producing three-dimensional [3D] effects, e.g. stereoscopic images by providing first and second parallax images to an observer's left and right eyes of the stereoscopic type
    • G02B30/24—Optical systems or apparatus for producing three-dimensional [3D] effects, e.g. stereoscopic images by providing first and second parallax images to an observer's left and right eyes of the stereoscopic type involving temporal multiplexing, e.g. using sequentially activated left and right shutters
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N13/00—Stereoscopic video systems; Multi-view video systems; Details thereof
    • 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
    • G02B27/0101—Head-up displays characterised by optical features
    • G02B2027/0132—Head-up displays characterised by optical features comprising binocular systems
    • G02B2027/0134—Head-up displays characterised by optical features comprising binocular systems of stereoscopic type
    • 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
    • G02B27/0101—Head-up displays characterised by optical features
    • G02B2027/014—Head-up displays characterised by optical features comprising information/image processing systems

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  • the present invention relates to a smart computer external device, and more particularly to a virtual reality helmet full screen drive display method and a virtual reality helmet using the display method.
  • the actual resolution of the single eye in the above example is 1K.
  • the hardware specification can be improved to improve the resolution of the helmet screen to optimize the performance of the head-mounted display device, but the high-resolution cannot be fully utilized due to the traditional three-dimensional display technology of the split-screen left and right eye images.
  • the role of the screen display is 1K.
  • the technical problem to be solved by the present invention is to provide a virtual reality helmet full-screen driving display method and a virtual reality helmet thereof, which can achieve the true visual resolution effect by the above-mentioned prior art.
  • a virtual reality helmet full screen driving display method includes an eyepiece, a screen display, and an on-screen graphics processor that drives the screen display, and the display method renders each frame image into separate Two sub-picture frames corresponding to the left and right eye angles, including steps:
  • the eyepiece comprises a grating eyepiece having a switchable liquid crystal lens, the grating eyepiece comprising a superimposed structure of an aspherical magnifying lens and a liquid crystal lens grating, and controlling the liquid crystal lens grating Turning on and off, when performing the steps S1 and S3 to display and drive the left sub-picture frame and the black screen, the light-transmission function of the right eyepiece is turned off; when the driving of the right sub-picture frame and the black screen is performed in steps S2 and S3, the display is turned off.
  • the light transmission function of the left eyepiece when performing the steps S1 and S3 to display and drive the left sub-picture frame and the black screen.
  • the step S3 is performed between ending the driving of the left sub-picture frame to start driving the right sub-picture frame, or Execution is performed between the time slots in which the driving of the right sub-picture frame starts driving the left sub-picture frame.
  • the screen display is a liquid crystal display adopting a vertical alignment liquid crystal mode, and during the execution of step S3, the data signal line driving voltage and the common voltage of the liquid crystal display are ensured.
  • the voltage difference is such that the liquid crystal is not deflected and is shown as black.
  • a virtual reality helmet for full-screen driving display includes a main control unit, an eyepiece unit mounted on the housing, a feedback unit electrically connected to the main control unit, a communication unit, and a sequence of scanning from top to bottom a scan mode screen display and a frame image processor of a future self-control unit rendering into a left and right sub-picture frames, the graphics processor controlling the screen display when displaying a left eye image, a full screen scan driver The left sub-picture frame is displayed, when the right-eye image is displayed, the full-screen scan drive displays the right sub-picture frame, and the screen display is black between the time slots between the left-eye and right-eye images.
  • the eyepiece comprises a grating eyepiece having a switchable liquid crystal lens, the grating eyepiece comprising a superimposed structure of an aspherical magnifying lens and a liquid crystal lens grating, and controlling opening and closing of the liquid crystal lens grating,
  • the helmet display driver is used to display the left sub-picture frame and the black screen, the light transmission function of the right eyepiece is turned off; when the helmet display driver displays the right sub-picture frame and the black screen, the light transmission function of the left eyepiece is turned off.
  • the black screen on the screen display between the time slots between the display of the left eye and the right eye image starts when the scan to the last line of the left sub-picture frame is completed.
  • the screen display is a vertical image
  • a voltage difference between the data signal line driving voltage and the common voltage of the liquid crystal display is ensured, and the package liquid crystal is not deflected, and the display is black.
  • the utility model provides a virtual reality helmet full-screen driving display method and a virtual reality helmet thereof.
  • a full-screen scanning driver displays a left sub-picture frame, and then a left eye receives a left-eye image through an eyepiece to ensure a left eye image.
  • the full-screen picture based on the left sub-picture frame is displayed, and the left-eye image is scanned to the last line to complete the scan, the left and right sub-picture frame drive time slots are displayed as black pictures, thereby solving the image display residual phenomenon. It can basically realize the effect that the left and right eyes respectively see the left and right images in the three-dimensional display scene and realize the real three-dimensional sense in the brain perception.
  • the actual image of the virtual-vision helmet is used to display the full-screen display driving mode in the virtual reality helmet.
  • the resolution metric is the full screen resolution built into the VR helmet. Improve the hardware specifications while fully utilizing the high-resolution screen display.
  • FIG. 1 is a schematic diagram of an embodiment of a virtual reality helmet full screen driving display method provided by the present invention.
  • a virtual reality helmet in an embodiment, includes a housing, an eyepiece, a screen display, an on-screen graphics processor, and an optical path system between the eyepiece and the screen display. It also includes a main control unit for controlling the on-screen graphics processor and a storage unit, communication unit, and sensing unit connected to the main control unit. a unit, an audio output unit, a human-machine interaction unit, and a power supply unit for supplying power to each of the units, wherein the screen display adopts a sequential scanning manner from top to bottom scanning, and the display method of the embodiment renders each frame image into separate Corresponding to the two sub-picture frames of the left and right eye angles, and adopting the sequential scanning mode of scanning from top to bottom, the display process is as shown in FIG. 1:
  • control drive screen display is displayed in black
  • block 102 may be performed between the time slot in which the driving of the left sub-picture frame starts driving the right sub-picture frame, or between the time slot in which the driving of the right sub-picture frame starts driving the left sub-picture frame.
  • any one-picture frame is driven by full-screen scanning, the entire screen display effect can reach a better level of the display nominal.
  • the left and right sub-picture frames are driven to increase the black screen display during the scanning of the left-eye image to the last line between the sub-picture frame displays, it is ensured that the left eye can be seen. To the full screen based on displaying the left sub-picture frame, and the two eyes have no interference and influence with each other.
  • the screen display of the virtual reality helmet mostly uses a liquid crystal display.
  • the display still uses a sequential scanning method of scanning from top to bottom.
  • the graphics processor can respectively render a certain frame image into two left and right sub-picture frames, when displaying the left eye image.
  • the full-screen scan driver displays the left sub-picture frame, and the left eye receives the left-eye image through the eyepiece, for example, for the LCD, If the vertical alignment liquid crystal mode is used, it is necessary to ensure that there is no voltage difference between the data signal line driving voltage and the common voltage, and the liquid crystal is not deflected, and the display is black. In turn, the image display residual phenomenon is solved.
  • the scanning of the right eye image is started later. Similarly, the right eye starts to receive the right eye image.
  • the liquid crystal molecule deflection requires liquid crystal response time, and the received right eye image includes the left eye image to the right.
  • the process of changing the eye image that is, in the liquid crystal response time, the right eye simultaneously receives the left eye picture and the right eye picture, thereby forming left eye and right eye image picture crosstalk.
  • a switchable liquid crystal lens grating eyepiece which comprises an aspherical magnifying lens and a liquid crystal lens grating superimposing structure, and the liquid crystal lens grating is opened.
  • the helmet display driver is used to display the left sub-picture frame and the black screen, the light transmission function of the right eyepiece is turned off; when the helmet display driver displays the right sub-picture frame and the black screen, the light transmission function of the left eyepiece is turned off.
  • the left and right eyes can respectively see the effects of the left and right images and the three-dimensional effect in the brain perception.

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  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Signal Processing (AREA)
  • Control Of Indicators Other Than Cathode Ray Tubes (AREA)

Abstract

一种虚拟现实头盔全屏驱动显示方法及虚拟现实头盔，包括主控单元、装在壳体上的目镜单元、与主控单元电连接的反馈单元、通信单元、采用自上向下扫描的顺序扫描方式的屏幕显示器以及将来自主控单元的某一帧图像渲染成左右两子画面帧的屏显图形处理器，所述图形处理器控制所述屏幕显示器当显示左眼图像时，全屏扫描驱动显示左子画面帧（S1），当显示右眼图像时，全屏扫描驱动显示右子画面帧（S2），以及在显示左眼和右眼图像之间的时隙之间所述屏幕显示器为黑画面（S3）。使用该头盔，使得单眼所视图像的实际分辨率指标即为虚拟现实头盔内置的全屏分辨率，提升硬件规格的同时也能充分发挥高分辨率屏幕显示的效果。

Description

一种虚拟现实头盔全屏驱动显示方法及其虚拟现实头盔 技术领域
本发明涉及智能计算机外部设备，更具体地说，涉及一种虚拟现实头盔全屏驱动显示方法以及使用这种显示方法的虚拟现实头盔。
背景技术
目前各大VR厂商在发布推行诸如虚拟现实头盔的智能产品时，均有涉及对头盔显示所采用屏幕分辨率的说明，例如采用的2K屏，分辨率为2560x1440。为了在头盔达到显示3D图像，设置了分别针对左、右眼的在两目镜前方的显示区域，这个显示区域实质上被区分为两个部分，分别用于显示经视角差异化处理后的左眼/右眼图片。如此，对于左眼图像而言，仅是显示位于左端的屏显部分，同样屏显部分的内容对左眼是不起作用的，因此，在现有技术虚拟现实头盔而言，针对单眼而言，其对应屏显区域的分辨率实际减半，例如上述例子中单眼的实际分辨率为1K。为提升每个单眼所见图像的分辨率，可以提升硬件规格即提高头盔屏幕分辨率以优化头戴显示装置性能，但会因传统的分屏左右眼图像三维显示技术而不能充分发挥高分辨率屏幕显示的作用。
发明内容
本发明要解决技术问题在于提供一种虚拟现实头盔全屏驱动显示方法及其虚拟现实头盔，可以可否上述现有技术不足，达到真实的视觉分辨率效果。
按照本发明提供的一种虚拟现实头盔全屏驱动显示方法，所述虚拟现实头盔包括目镜、屏幕显示器、驱动所述屏幕显示器的屏显图形处理器，所述显示方法将每一帧图像渲染成分别对应左右眼视角的两子画面帧，包括步骤：
S1)控制在所述屏幕显示器显示左眼图像时，全屏扫描驱动显示左子画面帧；
S2)在所述屏幕显示器显示右眼图像时，全屏扫描驱动显示右子画面帧，以及
S3)在交替显示左眼和右眼图像之间的时隙，驱动显示所述屏幕显示器为黑画面。
在本发明上述虚拟现实头盔全屏驱动显示方法中，所述目镜包括具有可开关液晶透镜的光栅目镜，所述光栅目镜包含非球面放大透镜与液晶透镜光栅的叠加结构，控制所述液晶透镜光栅的开启与关闭，在执行步骤S1和S3显示驱动显示左子画面帧与黑画面时，关闭右侧目镜的透光功能；在执行步骤S2和S3显示驱动显示右边子画面帧与黑画面时，关闭左侧目镜的透光功能。
在本发明上述虚拟现实头盔全屏驱动显示方法中，所述步骤S3是在结束驱动左子画面帧开始驱动右子画面帧的时隙之间执行，或者是 在结束驱动右子画面帧开始驱动左子画面帧的时隙之间执行。
在本发明上述虚拟现实头盔全屏驱动显示方法中，所述屏幕显示器为采用垂直配像液晶模式的液晶显示器，在执行步骤S3期间，确保所述液晶显示器的数据信号线驱动电压与共通电压间无电压差，使得液晶不偏转，显示为黑。
按照本发明提供的一种全屏驱动显示的虚拟现实头盔，包括主控单元、装在壳体上的目镜单元、与主控单元电连接的反馈单元、通信单元、采用自上向下扫描的顺序扫描方式的屏幕显示器以及将来自主控单元的某一帧图像渲染成左右两子画面帧的屏显图形处理器,所述图形处理器控制所述屏幕显示器当显示左眼图像时，全屏扫描驱动显示左子画面帧，当显示右眼图像时，全屏扫描驱动显示右子画面帧，以及在显示左眼和右眼图像之间的时隙之间所述屏幕显示器为黑画面。
在本发明上述虚拟现实头盔中，所述目镜包括具有可开关液晶透镜的光栅目镜，所述光栅目镜包含非球面放大透镜与液晶透镜光栅的叠加结构，控制所述液晶透镜光栅的开启与关闭，遵循头盔显示驱动显示左子画面帧与黑画面时，关闭右侧目镜的透光功能；头盔显示驱动显示右边子画面帧与黑画面时，关闭左侧目镜的透光功能。
在本发明上述虚拟现实头盔中，在显示左眼和右眼图像之间的时隙之间在所述屏幕显示器上的黑画面始于扫描至左子画面帧最后一行完成扫描时。
在本发明上述虚拟现实头盔中，所述屏幕显示器为采用垂直配像 液晶模式的液晶显示器，在所述屏幕显示器上的黑画面期间，确保所述液晶显示器的数据信号线驱动电压与共通电压间无电压差，包装液晶不偏转，显示为黑。
实施本发明提供的一种虚拟现实头盔全屏驱动显示方法及其虚拟现实头盔，当显示左眼图像时，全屏扫描驱动显示左子画面帧，进而左眼通过目镜接收左眼图像，确保当左眼能看到基于显示左子画面帧的全屏画面，且左眼图像扫描至最后一行完成扫描时，左右子画面帧驱动时隙之间为黑画面显示，进而解决影像显示残留现象。可基本实现三维显示场景中左右眼分别看到左右画面的进而在大脑感知中实现真实立体感的效果，另外，采用本提案揭示的关于虚拟现实头盔中全屏显示驱动方式，单眼所视图像的实际分辨率指标即为虚拟现实头盔内置的全屏分辨率。提升硬件规格的同时也能充分发挥高分辨率屏幕显示的效果。
附图说明
图1是本发明提供的一种虚拟现实头盔全屏驱动显示方法的实施例示意图。
具体实施方式
在本发明提供的一种虚拟现实头盔全屏驱动显示方法的实施例中，所说虚拟现实头盔包括壳体、目镜、屏幕显示器、屏显图形处理器、设置目镜与屏幕显示器之间的光路系统、还包括对屏显图形处理器进行控制的主控单元以及与主控单元连接的存储单元、通信单元、传感 器单元、音频输出单元、人机交互单元以及给上述各个单元供电的供电单元，其中，屏幕显示器采用自上向下扫描的顺序扫描方式，本实施例的显示方法将每一帧图像渲染成分别对应左、右眼视角的两子画面帧，且采用自上向下扫描的顺序扫描方式，其显示过程如图1所示：
在框101中，控制在屏幕显示器上显示来自主控单元的左眼图像时，用全屏扫描驱动在屏幕显示器上显示左子画面帧；
在框102中，控制驱动屏幕显示器显示为黑色；
在框103中，控制在屏幕显示器上显示来自主控单元的右眼图像时，用全屏扫描驱动在屏幕显示器上显示右子画面帧。
此处，框102可以是在结束驱动左子画面帧开始驱动右子画面帧的时隙之间执行，或者是在结束驱动右子画面帧开始驱动左子画面帧的时隙之间执行。
在本实施例中，由于采用全屏扫描驱动任何一个子画面帧，这样整个屏幕显示效果都可以达到显示器标称的较好水准。在本实施例中，由于在子画面帧显示之间，通过在左眼图像扫描至最后一行完成扫描时，左、右子画面帧驱动之际增加黑画面显示，从而确保了当左眼能看到基于显示左子画面帧的全屏画面，且两个眼睛彼此之间没有干扰和影响。
虚拟现实头盔的屏幕显示器多半采用液晶显示器，此处显示器依然采用自上向下扫描的顺序扫描方式，图形处理器可以分别将某一帧图像渲染成左右两子画面帧，当显示左眼图像时，全屏扫描驱动显示左子画面帧，进而左眼通过目镜接收左眼图像，例如，对于LCD而言， 若其中采用垂直配像液晶模式，则需确保数据信号线驱动电压与共通电压间无电压差，液晶不偏转，显示为黑。进而解决影像显示残留现象。后续开始扫描右眼图像，同理，右眼开始接收右眼图像，如果采用的屏显器件为LCD类，液晶分子的偏转需要液晶响应时间，则接收的右眼图像包含从左眼图像向右眼图像变化的过程，也就是说，在该液晶响应时间中，右眼同时接收到左眼画面和右眼画面，从而形成左眼和右眼图像画面串扰。通过在左右画面帧之间驱动显示黑画面的方式解决，例如可以采用左眼同时接收到左眼图像以及黑画面，右眼同时接收到右眼图像以及黑画面的方式解决。
为配合实施以上实施例描述的头盔全屏显示驱动方案，在目镜结构上，需要引入一种具有可开关液晶透镜光栅目镜，该目镜包含非球面放大透镜与液晶透镜光栅叠加结构，液晶透镜光栅的开启与关闭，遵循头盔显示驱动显示左子画面帧与黑画面时，关闭右侧目镜的透光功能；头盔显示驱动显示右边子画面帧与黑画面时，关闭左侧目镜的透光功能。这样，可以按照三维图像显示原理，左右眼分别看到左右画面的进而在大脑感知中实现立体感的效果。
以上所述，仅为本发明较佳的具体实施方式，但本发明的保护范围并不局限于此，任何熟悉本技术领域的技术人员在本发明揭露的技术范围内，可轻易想到的变化或替换，都应涵盖在本发明的保护范围之内。因此，本发明的保护范围应该以权利要求的保护范围为准。

Claims (8)

  1. 一种虚拟现实头盔全屏驱动显示方法，所述虚拟现实头盔包括目镜、屏幕显示器、驱动所述屏幕显示器的屏显图形处理器，其特征在于，所述显示方法将每一帧图像渲染成分别对应左、右眼视角的两子画面帧，包括以下步骤：
    S1)控制在所述屏幕显示器显示左眼图像时，全屏扫描驱动显示左子画面帧；
    S2)在所述屏幕显示器显示右眼图像时，全屏扫描驱动显示右子画面帧，以及
    S3)在交替显示左眼和右眼图像之间的时隙,驱动显示所述屏幕显示黑画面。
  2. 根据权利要求1所述显示方法，其特征在于，所述目镜包括具有可开关液晶透镜的光栅目镜，所述光栅目镜包含非球面放大透镜与液晶透镜光栅的叠加结构，控制所述液晶透镜光栅的开启与关闭，在执行步骤S1和S3显示驱动显示左子画面帧与黑画面时，关闭右侧目镜的透光功能；在执行步骤S2和S3显示驱动显示右边子画面帧与黑画面时，关闭左侧目镜的透光功能。
  3. 根据权利要求1所述显示方法，其特征在于，所述步骤S3是在结束驱动左子画面帧开始驱动右子画面帧的时隙之间执行，或者是在结束驱动右子画面帧开始驱动左子画面帧的时隙之间执行。
  4. 根据权利要求1所述显示方法，其特征在于，所述屏幕显示器为采用垂直配像液晶模式的液晶显示器，在执行步骤S3期间，确保所述液晶显示器的数据信号线驱动电压与共通电压间无电压差，使得液晶不偏转，显示为黑。
  5. 一种全屏驱动显示的虚拟现实头盔，包括主控单元、装在壳体上的目镜单元、与主控单元电连接的反馈单元、通信单元、采用自上向下扫描的顺序扫描方式的屏幕显示器以及将来自主控单元的某一帧图像渲染成左右两子画面帧的屏 显图形处理器,所述图形处理器控制所述屏幕显示器当显示左眼图像时，全屏扫描驱动显示左子画面帧，当显示右眼图像时，全屏扫描驱动显示右子画面帧，以及在显示左眼和右眼图像之间的时隙之间所述屏幕显示器为黑画面。
  6. 根据权利要求4所述虚拟现实头盔，其特征在于，所述目镜包括具有可开关液晶透镜的光栅目镜，所述光栅目镜包含非球面放大透镜与液晶透镜光栅的叠加结构，控制所述液晶透镜光栅的开启与关闭，遵循头盔显示驱动显示左子画面帧与黑画面时，关闭右侧目镜的透光功能；头盔显示驱动显示右边子画面帧与黑画面时，关闭左侧目镜的透光功能。
  7. 根据权利要求5所述虚拟现实头盔，其特征在于，在显示左眼和右眼图像之间的时隙之间在所述屏幕显示器上的黑画面始于扫描至左子画面帧最后一行完成扫描时。
  8. 根据权利要求5所述虚拟现实头盔，其特征在于，所述屏幕显示器为采用垂直配像液晶模式的液晶显示器，在所述屏幕显示器上的黑画面期间，确保所述液晶显示器的数据信号线驱动电压与共通电压间无电压差，使得液晶不偏转，显示为黑。
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