WO2024037622A1 - Dispositif d'affichage monté sur la tête ar, procédé de commande et appareil de commande - Google Patents

Dispositif d'affichage monté sur la tête ar, procédé de commande et appareil de commande Download PDF

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Publication number
WO2024037622A1
WO2024037622A1 PCT/CN2023/113724 CN2023113724W WO2024037622A1 WO 2024037622 A1 WO2024037622 A1 WO 2024037622A1 CN 2023113724 W CN2023113724 W CN 2023113724W WO 2024037622 A1 WO2024037622 A1 WO 2024037622A1
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Prior art keywords
light
optical element
polarizing optical
shielding structure
head
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PCT/CN2023/113724
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English (en)
Chinese (zh)
Inventor
张自应
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北京字跳网络技术有限公司
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Publication of WO2024037622A1 publication Critical patent/WO2024037622A1/fr

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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

Definitions

  • the present disclosure relates to the technical field of head-mounted display devices, and in particular to an AR head-mounted display device, a control method and a control device.
  • Augmented Reality is a technology that combines virtual and real.
  • the so-called “virtual” refers to the virtual image, which is displayed by a microdisplay and amplified by optical elements and transmitted to the human eye; the so-called “real” refers to the real reality.
  • augmented reality technology is a technology that superimposes virtual images and the real world.
  • augmented reality display devices do not need to be held and have the characteristics of freeing hands, which is the main development direction of augmented reality technology.
  • Head-mounted augmented reality display devices include optical see-through type and video see-through type.
  • the optical see-through type allows the human eye to see the real world directly by receiving the light from the light-transmitting connector, and at the same time, it can also see the superimposed Virtual images in the real world are the mainstream of the development of augmented reality display technology.
  • an AR head-mounted display device including: a display module, a lens, and a processor, wherein:
  • the lens includes a stacked optical waveguide structure and a light-shielding structure
  • the light-shielding structure is located on the environmental side of the optical waveguide structure away from the user's eyes;
  • the optical waveguide structure is used to couple the light emitted by the display module to the user's eyes;
  • the working state of the light-shielding structure includes a light-shielding state and a light-transmitting state
  • the processor is electrically connected to the light-shielding structure and is used to control the light-shielding structure to switch between the light-shielding state and the light-transmitting state.
  • the present disclosure also provides a method for controlling an AR head-mounted display device.
  • the control method is suitable for
  • the display time of one frame of the AR head-mounted display device includes at least one light-transmitting period and at least one non-light-transmitting period, and the light-transmitting period and the non-light-transmitting period The light transmission periods alternate.
  • the method includes:
  • the display module is controlled not to display the virtual image and the light shielding structure is in a light transmission state
  • the display module is controlled to display a virtual image and the light-shielding structure is in a light-shielding state.
  • the present disclosure also provides an AR head-mounted display device control device.
  • the control device is suitable for the AR head-mounted display device provided in the first aspect.
  • the AR head-mounted display device displays one frame. Time includes at least one light-transmitting period and at least one non-light-transmitting period, the light-transmitting period and the non-light-transmitting period are alternately performed, and the device includes:
  • a first control module configured to control the display module not to display a virtual image and the light-shielding structure to be in a light-transmitting state during the light-transmitting period
  • the second control module is used to control the display module to display a virtual image and the light-shielding structure to be in a light-shielding state during the non-light-transmitting period.
  • the present disclosure also provides an electronic device, the electronic device including:
  • processors one or more processors
  • a storage device for storing one or more programs
  • the one or more processors When the one or more programs are executed by the one or more processors, the one or more processors are caused to implement the AR head-mounted display device control method as described above.
  • the present disclosure also provides a computer-readable storage medium on which a computer program is stored.
  • the program is executed by a processor, the above-mentioned AR head-mounted display device control method is implemented.
  • the present disclosure also provides a computer program, including: instructions, which when executed by a processor implement the AR head-mounted display device control method as described above.
  • Figure 1 is a schematic structural diagram of an AR head-mounted display device provided by some embodiments of the present disclosure
  • Figure 2 is a timing diagram of the working process of an AR head-mounted display device applicable to Figure 1;
  • Figure 3 is a schematic structural diagram of an AR head-mounted display device provided by some embodiments of the present disclosure.
  • FIG 4 is a schematic structural diagram of the phase delay device in Figure 3;
  • Figure 5 is a timing diagram of the working process of an AR head-mounted display device provided by some embodiments of the present disclosure
  • Figure 6 is a timing diagram of the working process of an AR head-mounted display device provided by some embodiments of the present disclosure.
  • Figure 7 is a schematic structural diagram of another AR headband display device provided by some embodiments of the present disclosure.
  • Figure 8 is a flow chart of an AR head-mounted display device control method provided by some embodiments of the present disclosure.
  • Figure 9 is a schematic structural diagram of an AR head-mounted display device control device in some embodiments of the present disclosure.
  • Figure 10 is a schematic structural diagram of an electronic device in some embodiments of the present disclosure.
  • the present disclosure proposes an AR head-mounted display device, a control method and a control device.
  • FIG. 1 is a schematic structural diagram of an AR head-mounted display device provided by some embodiments of the present disclosure.
  • the AR head-mounted display device includes: a display module 20, a lens and a processor (not shown in the figure).
  • the lens includes a stacked optical waveguide structure 40 and a light-shielding structure 10 .
  • the light-shielding structure 10 is located on the environmental side of the optical waveguide structure 40 away from the eyes of the user (i.e., the wearer of the AR head-mounted display device); the optical waveguide structure 40 is used to couple the light emitted by the display module to the user (i.e., the AR head-mounted display device wearer). display device wearer) eyes.
  • FIG. 1 is a schematic structural diagram of an AR head-mounted display device provided by some embodiments of the present disclosure.
  • the AR head-mounted display device includes: a display module 20, a lens and a processor (not shown in the figure).
  • the lens includes a stacked optical waveguide structure 40 and a
  • the working state of the light-shielding structure 10 includes a light-shielding state and a light-transmitting state; the processor is electrically connected to the light-shielding structure 10 for The light-shielding structure 10 is controlled to switch between a light-shielding state and a light-transmitting state.
  • the side close to the human eye is the eye side
  • the side far away from the human eye is the environment side.
  • the light-shielding structure 10 has different light-shielding effects in the light-shielding state and the light-transmitting state. If the light-shielding structure is in a light-shielding state, the user cannot observe the real world through the light-shielding structure. If the light-shielding structure is in a light-transmitting state, users can observe the real world through the light-shielding structure. In one embodiment, the light-shielding effect of the light-shielding structure is adjusted by adjusting the light transmittance of the light-shielding structure.
  • the processor is configured to control the light-shielding structure 10 to be in a light-transmitting state when the display module 20 does not display a virtual image; and to control the light-shielding structure 10 to be in a light-shielding state when the display module 20 displays a virtual image.
  • the display module does not display the virtual image
  • the visual image of the real world formed in the human eye will not be interfered by the virtual image displayed by the display module, making the visual image of the real world very clear in the human brain.
  • other users not the wearer of the AR head-mounted display device
  • the light-shielding structure When the light-shielding structure is in a light-shielding state, the visual image of the virtual image formed in the human eye will not be interfered by external ambient light, making the virtual image highly visible and making the visual image of the virtual image clear in the human brain.
  • the light forming the virtual image will not reach the eyes of other users (non-wearers of the AR head-mounted display device) through the light-shielding structure, causing the adverse phenomenon of information leakage.
  • Figure 2 is a timing diagram of the working process of an AR head-mounted display device applicable to Figure 1.
  • the display time of one frame of the AR head-mounted display device includes at least one light-transmitting period and at least one non-light-transmitting period, the light-transmitting period and the non-light-transmitting period. Periods alternate; during the light-transmitting period, the display module does not display a virtual image, and the light-shielding structure is in a light-transmitting state; during the non-light-transmitting period, the display module displays a virtual image, and the light-shielding structure is in a light-blocking state.
  • the display time of one frame includes a light-transmitting period and a non-light-transmitting period.
  • the light-transmitting period since the light-shielding structure is in a light-transmitting state, human eyes can observe the real world through the light-shielding structure. Due to the effect of visual persistence, when the time reaches the non-light-transmitting period, the visual image of the real world is still retained in the human brain.
  • the display module displays virtual images, and the human eye can still see the display module.
  • the virtual images displayed by the group, and the visual image formed by the virtual images will also be retained in the human brain, allowing the superposition of virtual images and the real world to be realized in people's perception.
  • the display module does not display virtual images during the light transmission period, the visual image of the real world formed in the human eye will not be interfered by the virtual image displayed by the display module, making the visual image of the real world clearer in the human brain.
  • other users not the wearer of the AR head-mounted display device
  • the light-shielding structure is in a light-shielding state, so that the visual image of the virtual image formed in the human eye will not be interfered by external ambient light, making the virtual image have higher visibility, and making the visual image of the virtual image visible in the human brain. is clearer.
  • the light forming the virtual image will not reach the eyes of other users (non-wearers of the AR head-mounted display device) through the light-shielding structure, causing the adverse phenomenon of information leakage.
  • the adoption of the above technical solution can, on the one hand, improve the visibility of the virtual image and the real world, and on the other hand, it can prevent the light used to form the virtual image from being emitted to the outside world, causing the adverse phenomenon of information leakage.
  • the first period in the display time of one frame is the light transmission period. This is only a specific example of the present application and is not a limitation of the present application. In practice, in the display time of one frame, the first period may also be a non-light-transmitting period.
  • Figure 3 is a schematic structural diagram of an AR head-mounted display device provided by some embodiments of the present disclosure. See Figure 3.
  • the light-shielding structure includes a first polarizing optical element 11, a phase retardation device 12 and a second polarizing optical element 13 that are stacked in a direction from the eye side to the environment side.
  • the first polarizing optical element 11 and the second polarizing optical element 13 are both polarizing plates; or the first polarizing optical element 11 and the second polarizing optical element 13 are both polarizing light splitting films; or the first polarizing optical element 11 and the second polarizing optical element 13 are both polarizing light splitting films.
  • the optical element 11 is a polarizing light splitting film, and the second polarizing optical element 13 is a polarizing plate; or the first polarizing optical element 11 is a polarizing plate, and the second polarizing optical element 13 is a polarizing light splitting film; the polarizing light splitting film can reflect in the first direction Vibrating light simultaneously transmits light vibrating in a second direction, where the first direction is perpendicular to the second direction.
  • the polarizing light splitting film is a metal wire grid film or the like.
  • the polarization directions of the first polarizing optical element and the second polarizing optical element are parallel or perpendicular.
  • phase retardation refers to the phenomenon that the phase of light is deflected when passing through a material with biphasic or pleiotropic properties.
  • a phase retardation device refers to a device including a biphasic or pleiotropic substance.
  • the phase retardation device is a liquid crystal device.
  • FIG. 4 is a schematic structural diagram of the phase delay device in Figure 3.
  • the phase retardation device includes an upper substrate 122 and a lower substrate 121 , and a liquid crystal 123 is filled between the upper substrate 122 and the lower substrate 121 .
  • the upper substrate 122 is provided with a first electrode (not shown in FIG. 4 ), and the lower substrate 121 is provided with a second electrode (not shown in FIG. 4 ).
  • a first driving voltage signal is input to the first electrode, and a second driving voltage signal is input to the second electrode, so that a voltage difference is formed between the first electrode and the second electrode, thereby forming an electric field.
  • liquid crystal molecules are optically active, compared with non- Under the action of the electric field, the liquid crystal molecules flip, which causes the polarization direction of the polarized light irradiated on the liquid crystal molecules to change.
  • the phase retardation will
  • the device 12 rotates the polarization direction of the light irradiated thereon by 90° when the device 12 is powered off, and does not rotate the polarization direction of the light irradiating the device 12 when the device 12 is powered on.
  • the external light passes through the second polarizing optical element 13 and becomes linearly polarized light with a vibration direction parallel to the transmission axis of the second polarizing optical element 13 .
  • the polarization direction is rotated by 90° and reaches the first polarizing optical element 11 . Since the vibration direction of the linearly polarized light reaching the first polarizing optical element 11 is perpendicular to the transmission axis of the first polarizing optical element 11 , it will be absorbed by the first polarizing optical element 11 .
  • the augmented reality display module displays a virtual image
  • the light leaked from the augmented reality display module changes into linearly polarized light with a vibration direction parallel to the transmission axis of the first polarizing optical element 11 after passing through the first polarizing optical element 11.
  • the polarization direction is rotated by 90° and reaches the second polarizing optical element 13 . Since the vibration direction of the linearly polarized light reaching the second polarizing optical element 13 is perpendicular to the transmission axis of the second polarizing optical element 13 , it will be absorbed by the second polarizing optical element 13 . That is, when the phase delay device 12 is powered off, external light cannot pass through the light-shielding structure 10 , and light leaked from the augmented reality display module cannot pass through the light-shielding structure 10 .
  • the external light passes through the second polarizing optical element 13 and becomes linearly polarized light with a vibration direction parallel to the transmission axis of the second polarizing optical element 13 .
  • the polarization direction is not rotated and reaches the first polarizing optical element 11 . Since the vibration direction of the linearly polarized light reaching the first polarizing optical element 11 is parallel to the transmission axis of the first polarizing optical element 11 , it can pass through the first polarizing optical element 11 .
  • the augmented reality display module displays a virtual image
  • the light leaked from the augmented reality display module changes into linearly polarized light with a vibration direction parallel to the transmission axis of the first polarizing optical element 11 after passing through the first polarizing optical element 11.
  • the polarization direction is not rotated and reaches the second polarizing optical element 13 . Since the vibration direction of the linearly polarized light reaching the second polarizing optical element 13 is parallel to the transmission axis of the second polarizing optical element 13 , it can pass through the second polarizing optical element 13 . That is, when the phase delay device 12 is powered on, external light can pass through the light-shielding structure 10 , and light leaked from the augmented reality display module can also pass through the light-shielding structure 10 .
  • Figure 5 is a timing diagram of the working process of an AR head-mounted display device provided by some embodiments of the present disclosure.
  • the display module is controlled to be in a bright state to display the virtual image.
  • the phase delay device in the light-shielding structure is controlled to be powered off.
  • the light leakage from the augmented reality display module cannot pass through the light-shielding structure, and the outside world cannot see the light leakage from the augmented reality display module.
  • the display module is controlled to be in a dark state and cannot display virtual images.
  • the phase delay device in the light-shielding structure is controlled to be powered on.
  • the light-shielding structure is transparent.
  • the wearer can perceive external light during this period and can observe through the light-shielding structure. to the real world. But at this time, because the augmented reality display module is in a dark state, no light will leak out. In this way, the external light leakage is blocked and the external light is transmitted.
  • the visibility of the virtual image and the real world can be improved, and on the other hand, the light used to form the virtual image can be prevented from being emitted to the outside world, causing information leakage. Undesirable leakage occurs.
  • the phase retardation will The device 12 rotates the polarization direction of the light irradiated thereon by 90° when the device 12 is powered off, and does not rotate the polarization direction of the light irradiating the device 12 when the device 12 is powered on.
  • the external light passes through the second polarizing optical element 13 and becomes linearly polarized light with a vibration direction parallel to the transmission axis of the second polarizing optical element 13 .
  • the polarization direction is rotated by 90° and reaches the first polarizing optical element 11 . Since the vibration direction of the linearly polarized light reaching the first polarizing optical element 11 is parallel to the transmission axis of the first polarizing optical element 11 , it can pass through the first polarizing optical element 11 .
  • the augmented reality display module displays a virtual image
  • the light leaked from the augmented reality display module changes into linearly polarized light with a vibration direction parallel to the transmission axis of the first polarizing optical element 11 after passing through the first polarizing optical element 11.
  • the polarization direction is rotated by 90° and reaches the second polarizing optical element 13 . Since the vibration direction of the linearly polarized light reaching the second polarizing optical element 13 is parallel to the transmission axis of the second polarizing optical element 13 , it can pass through the second polarizing optical element 13 . That is, when the phase delay device 12 is powered off, external light can pass through the light-shielding structure 10 , and the light leaked from the augmented reality display module can also pass through the light-shielding structure 10 .
  • the external light passes through the second polarizing optical element 13 and becomes linearly polarized light with a vibration direction parallel to the transmission axis of the second polarizing optical element 13 .
  • the polarization direction is not rotated and reaches the first polarizing optical element 11 . Since the vibration direction of the linearly polarized light reaching the first polarizing optical element 11 is perpendicular to the transmission axis of the first polarizing optical element 11 , it will be absorbed by the first polarizing optical element 11 .
  • the augmented reality display module displays a virtual image
  • the light leaked from the augmented reality display module changes into linearly polarized light with a vibration direction parallel to the transmission axis of the first polarizing optical element 11 after passing through the first polarizing optical element 11.
  • the polarization direction is not rotated and reaches the second polarizing optical element 13 . Since the vibration direction of the linearly polarized light arriving at the second polarizing optical element 13 is different from the transmission axis of the second polarizing optical element 13 Vertically, it will be absorbed by the second polarizing optical element 13. That is, when the phase delay device 12 is powered on, external light cannot pass through the light-shielding structure 10 , and light leaked from the augmented reality display module cannot pass through the light-shielding structure 10 .
  • Figure 6 is a timing diagram of the working process of an AR head-mounted display device provided by some embodiments of the present disclosure.
  • the display module is controlled to be in a bright state to display a virtual image, and the phase delay device in the light-shielding structure is controlled to be powered on.
  • the display module is controlled to be in a dark state and cannot display virtual images.
  • the phase delay device in the light-shielding structure is controlled to be powered off.
  • the light-shielding structure is transparent.
  • the wearer can perceive the outside light during this time period and can use the light-shielding structure.
  • Structure observes the real world. But at this time, because the augmented reality display module is in a dark state, no light will leak out. In this way, the external light leakage is blocked and the external light is transmitted.
  • the visibility of the virtual image and the real world can be improved, and on the other hand, the light used to form the virtual image can be prevented from being emitted to the outside world, causing information leakage. Undesirable leakage occurs.
  • the phase retardation will The device 12 rotates the polarization direction of the light irradiating it by 90° when the device 12 is powered on, and does not rotate the polarization direction of the light irradiating it when the device 12 is powered off.
  • the external light passes through the second polarizing optical element 13 and becomes linearly polarized light with a vibration direction parallel to the transmission axis of the second polarizing optical element 13 .
  • the polarization direction is rotated by 90° and reaches the first polarizing optical element 11 . Since the vibration direction of the linearly polarized light reaching the first polarizing optical element 11 is perpendicular to the transmission axis of the first polarizing optical element 11 , it will be absorbed by the first polarizing optical element 11 .
  • the augmented reality display module displays a virtual image
  • the light leaked from the augmented reality display module changes into linearly polarized light with a vibration direction parallel to the transmission axis of the first polarizing optical element 11 after passing through the first polarizing optical element 11.
  • the polarization direction is rotated by 90° and reaches the second polarizing optical element 13 . Since the vibration direction of the linearly polarized light reaching the second polarizing optical element 13 is perpendicular to the transmission axis of the second polarizing optical element 13 , it will be absorbed by the second polarizing optical element 13 . That is, when the phase delay device 12 is powered on, external light cannot pass through the light-shielding structure 10 , and light leaked from the augmented reality display module cannot pass through the light-shielding structure 10 .
  • the external light passes through the second polarizing optical element 13 and becomes linearly polarized light with a vibration direction parallel to the transmission axis of the second polarizing optical element 13 .
  • the polarization direction is not rotated and reaches the first polarizing optical element 11 . Since the vibration direction of the linearly polarized light reaching the first polarizing optical element 11 is parallel to the transmission axis of the first polarizing optical element 11 , it can pass through the first polarizing optical element 11 Item 11.
  • the augmented reality display module displays a virtual image
  • the light leaked from the augmented reality display module changes into linearly polarized light with a vibration direction parallel to the transmission axis of the first polarizing optical element 11 after passing through the first polarizing optical element 11.
  • the polarization direction is not rotated and reaches the second polarizing optical element 13 . Since the vibration direction of the linearly polarized light reaching the second polarizing optical element 13 is parallel to the transmission axis of the second polarizing optical element 13 , it can pass through the second polarizing optical element 13 . That is, when the phase delay device 12 is powered off, external light can pass through the light-shielding structure 10 , and the light leaked from the augmented reality display module can also pass through the light-shielding structure 10 .
  • the timing diagram of the working process of the AR head-mounted display device is consistent with Figure 6.
  • the display module is controlled to be in a bright state to display a virtual image, and the phase delay device in the light-shielding structure is controlled to be powered on.
  • the display module is controlled to be in a dark state and cannot display virtual images.
  • the phase delay device in the light-shielding structure is controlled to be powered off.
  • the light-shielding structure is transparent.
  • the wearer can perceive the outside light during this time period and can use the light-shielding structure.
  • Structure observes the real world. But at this time, because the augmented reality display module is in a dark state, no light will leak out. In this way, the external light leakage is blocked and the external light is transmitted.
  • the visibility of the virtual image and the real world can be improved, and on the other hand, the light used to form the virtual image can be prevented from being emitted to the outside world, causing information leakage. Undesirable leakage occurs.
  • the phase retardation will The device 12 rotates the polarization direction of the light irradiating it by 90° when the device 12 is powered on, and does not rotate the polarization direction of the light irradiating it when the device 12 is powered off.
  • the external light passes through the second polarizing optical element 13 and becomes linearly polarized light with a vibration direction parallel to the transmission axis of the second polarizing optical element 13 .
  • the polarization direction is rotated by 90° and reaches the first polarizing optical element 11 . Since the vibration direction of the linearly polarized light reaching the first polarizing optical element 11 is parallel to the transmission axis of the first polarizing optical element 11 , it can pass through the first polarizing optical element 11 .
  • the augmented reality display module displays a virtual image
  • the light leaked from the augmented reality display module changes into linearly polarized light with a vibration direction parallel to the transmission axis of the first polarizing optical element 11 after passing through the first polarizing optical element 11.
  • the polarization direction is rotated by 90° and reaches the second polarizing optical element 13 . Since the vibration direction of the linearly polarized light reaching the second polarizing optical element 13 is parallel to the transmission axis of the second polarizing optical element 13 , it can pass through the second polarizing optical element 13 . That is, when the phase delay device 12 is powered on, external light can pass through the light-shielding structure 10 , and light leaked from the augmented reality display module can also pass through the light-shielding structure 10 .
  • the external light passes through the second polarizing optical element 13 and becomes linearly polarized light with a vibration direction parallel to the transmission axis of the second polarizing optical element 13 .
  • the polarization direction is not rotated and reaches the first polarizing optical element 11 . Since the vibration direction of the linearly polarized light reaching the first polarizing optical element 11 is perpendicular to the transmission axis of the first polarizing optical element 11 , it will be absorbed by the first polarizing optical element 11 .
  • the augmented reality display module displays a virtual image
  • the light leaked from the augmented reality display module changes into linearly polarized light with a vibration direction parallel to the transmission axis of the first polarizing optical element 11 after passing through the first polarizing optical element 11.
  • the polarization direction is not rotated and reaches the second polarizing optical element 13 . Since the vibration direction of the linearly polarized light reaching the second polarizing optical element 13 is perpendicular to the transmission axis of the second polarizing optical element 13 , it will be absorbed by the second polarizing optical element 13 . That is, when the phase delay device 12 is powered off, external light cannot pass through the light-shielding structure 10 , and light leaked from the augmented reality display module cannot pass through the light-shielding structure 10 .
  • the timing diagram of the working process of the AR head-mounted display device is consistent with Figure 5.
  • the display module is controlled to be in a bright state to display a virtual image, and the phase delay device in the light-shielding structure is controlled to be powered off.
  • the display module is controlled to be in a dark state and cannot display virtual images.
  • the phase delay device in the light-shielding structure is controlled to be energized.
  • the light-shielding structure is transparent.
  • the wearer can perceive external light during this period and can pass the light-shielding structure. Observe the real world. But at this time, because the augmented reality display module is in a dark state, no light will leak out. In this way, the external light leakage is blocked and the external light is transmitted.
  • the visibility of the virtual image and the real world can be improved, and on the other hand, the light used to form the virtual image can be prevented from being emitted to the outside world, causing information leakage. Undesirable leakage occurs.
  • the phase The delay device 12 rotates the polarization direction of the light irradiated thereon by 90° when the power is off, and does not rotate the polarization direction of the light irradiation thereon when the power is on.
  • the external light passes through the second polarizing optical element 13 and becomes linearly polarized light with a vibration direction parallel to the transmission axis of the second polarizing optical element 13 .
  • the polarization direction is rotated by 90° and reaches the first polarizing optical element 11 . Since the vibration direction of the linearly polarized light reaching the first polarizing optical element 11 is perpendicular to the transmission axis of the first polarizing optical element 11 , it will be reflected by the first polarizing optical element 11 and reach the phase retardation device 12 for the second time.
  • the polarization direction of the light reaching the phase retardation device 12 for the second time is rotated by 90° again, returns to a direction parallel to the transmission axis of the second polarization optical element 13, and then passes through the second polarization optical element 13.
  • Polarizing optical element 13 If the augmented reality display module displays a virtual image, the light leaked from the augmented reality display module changes into linearly polarized light with a vibration direction parallel to the transmission axis of the first polarizing optical element 11 after passing through the first polarizing optical element 11. After the linearly polarized light passes through the phase retardation device 12 , the polarization direction is rotated by 90° and reaches the second polarizing optical element 13 .
  • phase retardation device 12 It will be reflected by the second polarizing optical element 13 and reach the phase retardation device 12 for the second time.
  • the polarization direction of the light reaching the phase retardation device 12 for the second time is rotated by 90° again, returning to the direction parallel to the transmission axis of the first polarizing optical element 11, and then passes through the first polarizing optical element 11, passes through the lens, and reaches the human eye. and received by the human eye. That is, when the phase delay device 12 is powered off, external light cannot pass through the light-shielding structure 10, and the light leaked from the augmented reality display module will be reflected back and received by the human eye, which can enhance the brightness of the virtual image and improve the enhancement.
  • Realistic display module ’s light energy utilization rate.
  • the external light passes through the second polarizing optical element 13 and becomes linearly polarized light with a vibration direction parallel to the transmission axis of the second polarizing optical element 13 .
  • the polarization direction is not rotated and reaches the first polarizing optical element 11 . Since the vibration direction of the linearly polarized light reaching the first polarizing optical element 11 is parallel to the transmission axis of the first polarizing optical element 11 , it can pass through the first polarizing optical element 11 .
  • the augmented reality display module displays a virtual image
  • the light leaked from the augmented reality display module changes into linearly polarized light with a vibration direction parallel to the transmission axis of the first polarizing optical element 11 after passing through the first polarizing optical element 11.
  • the polarization direction is not rotated and reaches the second polarizing optical element 13 . Since the vibration direction of the linearly polarized light reaching the second polarizing optical element 13 is parallel to the transmission axis of the second polarizing optical element 13 , it can pass through the second polarizing optical element 13 . That is, when the phase delay device 12 is powered on, external light can pass through the light-shielding structure 10 , and light leaked from the augmented reality display module can also pass through the light-shielding structure 10 .
  • the timing diagram of the working process of the AR head-mounted display device is consistent with Figure 5.
  • the display module is controlled to be in a bright state to display a virtual image, and the phase delay device in the light-shielding structure is controlled to be powered off.
  • light leakage outside the augmented reality display module is not only It cannot pass through the light-shielding structure and will be reflected to the human eye and used. The outside world cannot see the external light leakage of the augmented reality display module.
  • the display module is controlled to be in a dark state and cannot display virtual images.
  • the phase delay device in the light-shielding structure is controlled to be energized.
  • the light-shielding structure is transparent.
  • the wearer can perceive external light during this period and can pass the light-shielding structure. Observe the real world. But at this time, because the augmented reality display module is in a dark state, no light will leak out. In this way, the external light leakage is blocked and the external light is transmitted.
  • the visibility of the virtual image and the real world can be improved, and on the other hand, the light used to form the virtual image can be prevented from being emitted to the outside world, causing information leakage. Undesirable leakage occurs.
  • the phase The delay device 12 rotates the polarization direction of the light irradiated thereon by 90° when the power is off, and does not rotate the polarization direction of the light irradiation thereon when the power is on.
  • the external light passes through the second polarizing optical element 13 and becomes linearly polarized light with a vibration direction parallel to the transmission axis of the second polarizing optical element 13 .
  • the polarization direction is rotated by 90° and reaches the first polarizing optical element 11 . Since the vibration direction of the linearly polarized light reaching the first polarizing optical element 11 is parallel to the transmission axis of the first polarizing optical element 11 , it can pass through the first polarizing optical element 11 .
  • the augmented reality display module displays a virtual image
  • the light leaked from the augmented reality display module changes into linearly polarized light with a vibration direction parallel to the transmission axis of the first polarizing optical element 11 after passing through the first polarizing optical element 11.
  • the polarization direction is rotated by 90° and reaches the second polarizing optical element 13 . Since the vibration direction of the linearly polarized light reaching the second polarizing optical element 13 is parallel to the transmission axis of the second polarizing optical element 13 , it can pass through the second polarizing optical element 13 . That is, when the phase delay device 12 is powered off, external light can pass through the light-shielding structure 10 , and the light leaked from the augmented reality display module can also pass through the light-shielding structure 10 .
  • the external light passes through the second polarizing optical element 13 and becomes linearly polarized light with a vibration direction parallel to the transmission axis of the second polarizing optical element 13 .
  • the polarization direction is not rotated and reaches the first polarizing optical element 11 . Since the vibration direction of the linearly polarized light reaching the first polarizing optical element 11 is perpendicular to the transmission axis of the first polarizing optical element 11 , it will be reflected by the first polarizing optical element 11 and reach the phase retardation device 12 for the second time.
  • the polarization direction of the light reaching the phase retardation device 12 for the second time is rotated by 90° again, returns to a direction parallel to the transmission axis of the second polarization optical element 13 , and then passes through the second polarization optical element 13 .
  • the augmented reality display module displays a virtual image
  • the light leaked from the augmented reality display module changes into linearly polarized light with a vibration direction parallel to the transmission axis of the first polarizing optical element 11 after passing through the first polarizing optical element 11.
  • the polarization direction is not rotated and reaches the second polarizing optical element 13 .
  • the polarization direction of the light reaching the phase retardation device 12 for the second time is rotated by 90° again, returning to the direction parallel to the transmission axis of the first polarizing optical element 11, and then passes through the first polarizing optical element 11, passes through the lens, and reaches the human eye. and received by the human eye. That is, when the phase delay device 12 is powered on, external light cannot pass through the light-shielding structure 10, and the light leaked from the augmented reality display module will be reflected back and received by the human eye, which can enhance the brightness of the virtual image and improve the augmented reality. Displays the light energy utilization rate of the module.
  • the timing diagram of the working process of the AR head-mounted display device is consistent with Figure 6.
  • the display module is controlled to be in a bright state to display the virtual image, and the phase delay device in the light-shielding structure is controlled to be powered on.
  • the light leaking outside the augmented reality display module not only cannot pass through the light-shielding structure, but also It will be reflected to the human eye and used, and the outside world cannot see the external light leakage of the augmented reality display module.
  • the display module is controlled to be in a dark state and cannot display virtual images.
  • the phase delay device in the light-shielding structure is controlled to be powered off.
  • the light-shielding structure is transparent.
  • the wearer can perceive the outside light during this time period and can use the light-shielding structure.
  • Structure observes the real world. But at this time, because the augmented reality display module is in a dark state, no light will leak out. In this way, the external light leakage is blocked and the external light is transmitted.
  • the visibility of the virtual image and the real world can be improved, and on the other hand, the light used to form the virtual image can be prevented from being emitted to the outside world, causing information leakage. Undesirable leakage occurs.
  • the phase The delay device 12 rotates the polarization direction of the light irradiated thereon by 90° when the power is on, and does not rotate the polarization direction of the light irradiation thereon when the power is off.
  • the external light passes through the second polarizing optical element 13 and becomes linearly polarized light with a vibration direction parallel to the transmission axis of the second polarizing optical element 13 .
  • the polarization direction is rotated by 90° and reaches the first polarizing optical element 11 . Since the vibration direction of the linearly polarized light reaching the first polarizing optical element 11 is perpendicular to the transmission axis of the first polarizing optical element 11 , it will be reflected by the first polarizing optical element 11 and reach the phase retardation device 12 for the second time.
  • the polarization direction of the light reaching the phase retardation device 12 for the second time is rotated by 90° again, returns to a direction parallel to the transmission axis of the second polarization optical element 13 , and then passes through the second polarization optical element 13 .
  • the augmented reality display module displays a virtual image
  • the light leaked from the augmented reality display module changes into linearly polarized light with a vibration direction parallel to the transmission axis of the first polarizing optical element 11 after passing through the first polarizing optical element 11.
  • the polarization direction is rotated by 90° and reaches the second polarizing optical element 13 .
  • the vibration direction of the linearly polarized light reaching the second polarizing optical element 13 is perpendicular to the transmission axis of the second polarizing optical element 13 , it will be reflected by the second polarizing optical element 13 and reach the phase retardation device 12 for the second time.
  • the polarization direction of the light reaching the phase retardation device 12 for the second time is rotated by 90° again, returning to the direction parallel to the transmission axis of the first polarizing optical element 11, and then passes through the first polarizing optical element 11, passes through the lens, and reaches the human eye. and received by the human eye.
  • phase delay device 12 when the phase delay device 12 is powered on, external light cannot pass through the light-shielding structure 10, and the light leaked from the augmented reality display module will be reflected back and received by the human eye, which can enhance the brightness of the virtual image and improve the augmented reality. Displays the light energy utilization rate of the module.
  • the external light passes through the second polarizing optical element 13 and becomes linearly polarized light with a vibration direction parallel to the transmission axis of the second polarizing optical element 13 .
  • the polarization direction is not rotated and reaches the first polarizing optical element 11 . Since the vibration direction of the linearly polarized light reaching the first polarizing optical element 11 is parallel to the transmission axis of the first polarizing optical element 11 , it can pass through the first polarizing optical element 11 .
  • the augmented reality display module displays a virtual image
  • the light leaked from the augmented reality display module changes into linearly polarized light with a vibration direction parallel to the transmission axis of the first polarizing optical element 11 after passing through the first polarizing optical element 11.
  • the polarization direction is not rotated and reaches the second polarizing optical element 13 . Since the vibration direction of the linearly polarized light reaching the second polarizing optical element 13 is parallel to the transmission axis of the second polarizing optical element 13 , it can pass through the second polarizing optical element 13 . That is, when the phase delay device 12 is powered off, external light can pass through the light-shielding structure 10 , and the light leaked from the augmented reality display module can also pass through the light-shielding structure 10 .
  • the timing diagram of the working process of the AR head-mounted display device is consistent with Figure 6.
  • the display module is controlled to be in a bright state to display a virtual image, and the phase delay device in the light-shielding structure is controlled to be powered on.
  • the display module is controlled to be in a dark state and cannot display virtual images.
  • the phase delay device in the light-shielding structure is controlled to be powered off.
  • the light-shielding structure is transparent.
  • the wearer can perceive the outside light during this time period and can use the light-shielding structure.
  • Structure observes the real world. But at this time, because the augmented reality display module is in a dark state, no light will leak out. In this way, the external light leakage is blocked and the external light is transmitted.
  • the visibility of the virtual image and the real world can be improved, and on the other hand, the light used to form the virtual image can be prevented from being emitted to the outside world, causing information leakage. Undesirable leakage occurs.
  • the phase The delay device 12 rotates the polarization direction of the light irradiated thereon by 90° when the power is on, and does not rotate the polarization direction of the light irradiation thereon when the power is off.
  • the external light passes through the second polarizing optical element 13 and becomes linearly polarized light with a vibration direction parallel to the transmission axis of the second polarizing optical element 13 .
  • the polarization direction is rotated by 90° and reaches the first polarizing optical element 11 . Since the vibration direction of the linearly polarized light reaching the first polarizing optical element 11 is parallel to the transmission axis of the first polarizing optical element 11 , it can pass through the first polarizing optical element 11 .
  • the augmented reality display module displays a virtual image
  • the light leaked from the augmented reality display module passes through the third A polarizing optical element 11 then becomes linearly polarized light with a vibration direction parallel to the transmission axis of the first polarizing optical element 11.
  • the polarization direction is rotated 90° and reaches the second polarizing optical element. 13. Since the vibration direction of the linearly polarized light reaching the second polarizing optical element 13 is parallel to the transmission axis of the second polarizing optical element 13 , it can pass through the second polarizing optical element 13 . That is, when the phase delay device 12 is powered on, external light can pass through the light-shielding structure 10 , and light leaked from the augmented reality display module can also pass through the light-shielding structure 10 .
  • the external light passes through the second polarizing optical element 13 and becomes linearly polarized light with a vibration direction parallel to the transmission axis of the second polarizing optical element 13 .
  • the polarization direction is not rotated and reaches the first polarizing optical element 11 . Since the vibration direction of the linearly polarized light reaching the first polarizing optical element 11 is perpendicular to the transmission axis of the first polarizing optical element 11 , it will be reflected by the first polarizing optical element 11 and reach the phase retardation device 12 for the second time.
  • the polarization direction of the light reaching the phase retardation device 12 for the second time is rotated by 90° again, returns to a direction parallel to the transmission axis of the second polarization optical element 13 , and then passes through the second polarization optical element 13 .
  • the augmented reality display module displays a virtual image
  • the light leaked from the augmented reality display module changes into linearly polarized light with a vibration direction parallel to the transmission axis of the first polarizing optical element 11 after passing through the first polarizing optical element 11.
  • the polarization direction is not rotated and reaches the second polarizing optical element 13 .
  • the vibration direction of the linearly polarized light reaching the second polarizing optical element 13 is perpendicular to the transmission axis of the second polarizing optical element 13 , it will be reflected by the second polarizing optical element 13 and reach the phase retardation device 12 for the second time.
  • the polarization direction of the light reaching the phase retardation device 12 for the second time is rotated by 90° again, returning to the direction parallel to the transmission axis of the first polarizing optical element 11, and then passes through the first polarizing optical element 11, passes through the lens, and reaches the human eye. and received by the human eye.
  • phase delay device 12 when the phase delay device 12 is powered off, external light cannot pass through the light-shielding structure 10, and the light leaked from the augmented reality display module cannot pass through the light-shielding structure 10, but will be reflected back and received by the human eye. It can enhance the brightness of virtual images and improve the light energy utilization rate of augmented reality display modules.
  • the timing diagram of the working process of the AR head-mounted display device is consistent with Figure 5.
  • the display module is controlled to be in a bright state to display a virtual image, and the phase delay device in the light-shielding structure is controlled to be powered off.
  • light leakage outside the augmented reality display module is not only It cannot pass through the light-shielding structure and will be reflected to the human eye and used. The outside world cannot see the external light leakage of the augmented reality display module.
  • the display module is controlled to be in a dark state and cannot display virtual images.
  • the phase delay device in the light-shielding structure is controlled to be energized.
  • the light-shielding structure is transparent.
  • the wearer can perceive external light during this period and can pass the light-shielding structure. Observe the real world. But at this time, because the augmented reality display module is in a dark state, no light will leak out. In this way, the external light leakage is blocked and the external light is transmitted.
  • the visibility of the virtual image and the real world can be improved, and on the other hand, the light used to form the virtual image can be prevented from being emitted to the outside world, causing information leakage. leaked Undesirable phenomena occur.
  • the optical waveguide structure in the above lens may be a waveguide lens.
  • waveguide lenses can also be replaced with Birdbath lenses or prism lenses.
  • the external light leakage of the display module will be reflected by the polarizing dichroic film. Imaging, the resulting image will produce aberrations with the image directly incident on the human eye, resulting in unclear virtual images. This problem will not occur with waveguide lenses.
  • the light-shielding structure includes a plurality of light-shielding units arranged in an array, and the working state of each light-shielding unit is independently adjustable; during the light-transmitting period, the light-shielding units located in the target area in the light-shielding structure are in a non-light-transmitting state, and are located in a non-light-transmitting state.
  • the light-shielding unit outside the target area is in a light-transmitting state; where the target area is the display area of the display module on the lens.
  • the working status of each shading unit is independently adjustable means that the working status of each shading unit can be adjusted independently, such as controlling it to adjust from a light-transmitting state to a light-blocking state, or from a light-blocking state to a light-transmitting state.
  • the target area is the projection area of the target object on the light-shielding structure, and the target object is an object included in the virtual image displayed by the display module during the non-light-transmitting period in the same frame.
  • the virtual image displayed by the display module includes at least one object, which includes but is not limited to people, objects, information display areas for human-computer interaction, controls, etc.
  • object which includes but is not limited to people, objects, information display areas for human-computer interaction, controls, etc.
  • all objects are determined as target objects, or some objects may be determined as target objects.
  • the target area refers to the area where the cone formed by taking the center of the exit pupil of the human eye or the display module as the vertex and the object in the virtual image as the base intersects with the light-shielding structure.
  • the target area refers to the area where the cone formed by taking the center of the exit pupil of the human eye or the display module as the vertex and the object in the virtual image as the base intersects with the phase delay device.
  • the virtual image displayed by the display module includes a box, based on the position of the box in the virtual image and the center of the exit pupil of the human eye or the display module as the vertex, Determine the target area corresponding to the box.
  • the display module does not display the virtual image including the box; the light-shielding units within the target area are in a light-blocking state, and the light-shielding units located outside the target area are in a light-transmitting state; during the non-light-transmitting period, the display module displays the following: This virtual image of the box; the light-blocking structure is in a light-blocking state.
  • the light-shielding units in the target area corresponding to the box are in the light-blocking state during both the non-light-transmitting period and the light-transmitting period.
  • the light-shielding units outside the target area corresponding to the box are in the light-blocking state during the non-light-transmitting period and in the light-transmitting period. Translucent state. This can avoid the problem that during the light transmission period, the real world that should be blocked by the box forms a visual image in the human eye and is retained in the human brain, resulting in an unrealistic display of the target object.
  • the target object includes a black object or an opaque object.
  • the purpose of this setting is to achieve realistic display of black objects or opaque objects.
  • the display position of each pixel in the display module on the lens is fixed. Before the display module displays a certain frame of virtual image, based on the driving signal used to drive the display module to display the frame of virtual image, it can be directly determined which areas in the light-shielding structure will be the target areas corresponding to the frame of virtual image. Rather than after the display module displays the virtual image of the frame, it is possible to obtain which areas in the light-shielding structure are the target areas corresponding to the virtual image of the frame.
  • the processor obtains a control signal for the light-shielding structure based on the driving signal; sends the driving signal to the display module, and sends the control signal to the light-shielding structure, so that the display module displays Virtual image, at the same time, the light-shielding units located within the target area in the light-shielding structure are in a non-light-transmitting state, and the light-shielding units located outside the target area are in a light-transmitting state.
  • the lens further includes a depolarizing optical element; the depolarizing optical element is located on the environmental side of the light-shielding structure.
  • Figure 7 is a schematic structural diagram of another AR headband display device provided by some embodiments of the present disclosure.
  • the depolarizing optical element 30 is located on the ambient side of the light-shielding structure 10 .
  • the depolarizing optical element includes a depolarizing plate or wave plate. Further, if the depolarizing optical element includes a wave plate, the optical axis of the wave plate and the transmission axis of the second polarizing optical element form a preset angle. The reason for this setting is that the light emitted by some mobile phone screens, TVs, monitors and other display devices is linearly polarized light. When the user wears the AR head-mounted display device, if no depolarizing optical element is provided and the vibration direction of the light emitted by the display device is perpendicular to the transmission axis of the second polarizing optical element, the light emitted by the display device cannot pass through.
  • the light-shielding structure in the AR head-mounted display device cannot enter the human eye. In other words, after wearing the AR head-mounted display device, the user cannot view display devices such as mobile phone screens, TVs, and monitors.
  • the polarization direction of linearly polarized light emitted by display devices such as mobile phone screens, TVs, and monitors can be changed, or the polarization direction of linearly polarized light emitted by display devices such as mobile phone screens, TVs, and monitors can be changed.
  • Linearly polarized light is converted into non-linearly polarized light (such as circularly polarized light, elliptically polarized light) or natural light, and then can pass through the light-shielding structure and enter the human eye, ensuring that after wearing the AR head-mounted display device, the user can watch the mobile phone screen, TV and display devices such as monitors.
  • non-linearly polarized light such as circularly polarized light, elliptically polarized light
  • Figure 8 is a flow chart of an AR head-mounted display device control method provided by some embodiments of the present disclosure. This control method is applicable to the AR head-mounted display device provided by the embodiment of the present disclosure.
  • the display time of one frame of the AR head-mounted display device includes at least one light-transmitting period and at least one non-light-transmitting period, the light-transmitting period and the non-light-transmitting period.
  • hour Sections are performed alternately; referring to Figure 8, the method includes: steps S410 to S420.
  • step S410 during the light transmission period, the display module is controlled not to display the virtual image and the light shielding structure is in a light transmission state.
  • step S420 during the non-light-transmitting period, the display module is controlled to display the virtual image and the light-shielding structure is in a light-shielding state.
  • Persistence of vision refers to the phenomenon that the vision produced by light on the retina remains for a period of time after the light stops acting.
  • the display time of one frame includes a light-transmitting period and a non-light-transmitting period.
  • the light-transmitting period since the light-shielding structure is in a light-transmitting state, human eyes can observe the real world through the light-shielding structure. Due to the effect of visual persistence, when the time reaches the non-light-transmitting period, the visual image of the real world is still retained in the human brain.
  • the display module displays the virtual image, and the human eye can still see the display.
  • the virtual image displayed by the module and the visual image formed by the virtual image will also be retained in the human brain, enabling the superposition of the virtual image and the real world in people's perception.
  • the display module does not display virtual images during the light transmission period, the visual image of the real world formed in the human eye will not be interfered by the virtual image displayed by the display module, making the visual image of the real world clearer in the human brain.
  • other users not the wearer of the AR head-mounted display device
  • the light-shielding structure is in a light-shielding state, so that the visual image of the virtual image formed in the human eye will not be interfered by external ambient light, making the virtual image have higher visibility, and making the visual image of the virtual image visible in the human brain. is clearer.
  • the light forming the virtual image will not reach the eyes of other users (non-wearers of the AR head-mounted display device) through the light-shielding structure, causing the adverse phenomenon of information leakage.
  • the light-shielding structure includes a plurality of light-shielding units arranged in an array, and the working status of each light-shielding unit is independently adjustable; during the light-transmitting period, controlling the display module not to display the virtual image and the light-shielding structure to be in a light-transmitting state includes: determining the target area , the target area is the display area of the display module on the lens; during the light transmission period, the light-shielding unit located in the target area in the control light-shielding structure is in a non-light-transmitting state, and the light-shielding unit located outside the target area is in a light-transmitting state.
  • FIG. 9 is a schematic structural diagram of an AR head-mounted display device control device in some embodiments of the present disclosure.
  • the AR head-mounted display device control device provided by the embodiment of the present disclosure is suitable for the AR head-mounted display device provided by the embodiment of the present disclosure.
  • the display time of one frame of the AR head-mounted display device includes at least one light-transmitting period and at least one non-light-transmitting period, and the light-transmitting period and the non-light-transmitting period are alternately performed.
  • the AR head-mounted display device control device specifically includes:
  • the first control module 510 is used to control the display module not to display a virtual image and the light-shielding structure to be in a light-transmitting state during the light-transmitting period;
  • the second control module 520 is used to control the display module to display a virtual image and the light-shielding structure to be in a light-shielding state during the non-light-transmitting period.
  • the light-shielding structure includes a plurality of light-shielding units arranged in an array, and the light-shielding effect of each of the light-shielding units is independently adjustable; the first control module is used to: determine a target area, and the target area is the display module the display area on the lens; during the light transmission period, the light-shielding unit located in the target area in the light-shielding structure is controlled to be in a non-light-transmitting state, and the light-shielding unit located outside the target area In a light-transmitting state.
  • the AR head-mounted display device control device provided by the embodiments of the present disclosure can execute the steps of the AR head-mounted display device control method provided by the method embodiments of the present disclosure, and has the same or corresponding beneficial effects, which will not be described again here.
  • FIG. 10 is a schematic structural diagram of an electronic device in an embodiment of the present disclosure.
  • the electronic device 1000 in the embodiment of the present disclosure may include, but is not limited to, mobile phones, laptops, digital broadcast receivers, PDAs (personal digital assistants), PADs (tablets), PMPs (portable multimedia players), vehicle-mounted terminals ( Mobile terminals such as vehicle navigation terminals), wearable electronic devices, etc., and fixed terminals such as digital TVs, desktop computers, smart home devices, etc.
  • the electronic device shown in FIG. 10 is only an example and should not impose any limitations on the functions and scope of use of the embodiments of the present disclosure.
  • the electronic device 1000 may include a processing device (eg, central processing unit, graphics processor, etc.) 1001 , which may be loaded into a random access device according to a program stored in a read-only memory (ROM) 1002 or from a storage device 1008 .
  • the program in the memory (RAM) 1003 performs various appropriate actions and processes to implement the AR head-mounted display device control method according to the embodiments of the present disclosure.
  • RAM 1003 there are also stored electrical Various programs and information required for the operation of the sub-device 1000.
  • the processing device 1001, the ROM 1002 and the RAM 1003 are connected to each other via a bus 1004.
  • An input/output (I/O) interface 1005 is also connected to bus 1004.
  • the following devices may be connected to the I/O interface 1005: input devices 1006 including, for example, a touch screen, touch pad, keyboard, mouse, camera, microphone, accelerometer, gyroscope, etc.; including, for example, a liquid crystal display (LCD), speakers, vibration An output device 1007 such as a computer; a storage device 1008 including a magnetic tape, a hard disk, etc.; and a communication device 1009.
  • the communication device 1009 may allow the electronic device 1000 to communicate wirelessly or wiredly with other devices to exchange information.
  • FIG. 10 illustrates electronic device 1000 with various means, it should be understood that implementation or availability of all illustrated means is not required. More or fewer means may alternatively be implemented or provided.
  • embodiments of the present disclosure include a computer program product, which includes a computer program carried on a non-transitory computer-readable medium, the computer program including program code for executing the method shown in the flowchart, thereby achieving the above The AR head-mounted display device control method.
  • the computer program may be downloaded and installed from the network via the communication device 1009, or from the storage device 1008, or from the ROM 1002.
  • the processing device 1001 the above-mentioned functions defined in the method of the embodiment of the present disclosure are performed.
  • the computer-readable medium mentioned above in the present disclosure may be a computer-readable signal medium or a computer-readable storage medium, or any combination of the above two.
  • the computer-readable storage medium may be, for example, but is not limited to, an electrical, magnetic, optical, electromagnetic, infrared, or semiconductor system, apparatus or device, or any combination thereof. More specific examples of computer readable storage media may include, but are not limited to: an electrical connection having one or more wires, a portable computer disk, a hard drive, random access memory (RAM), read only memory (ROM), removable Programmd read-only memory (EPROM or flash memory), fiber optics, portable compact disk read-only memory (CD-ROM), optical storage device, magnetic storage device, or any suitable combination of the above.
  • a computer-readable storage medium may be any tangible medium that contains or stores a program for use by or in connection with an instruction execution system, apparatus, or device.
  • a computer-readable signal medium may include an information signal propagated in baseband or as part of a carrier wave, carrying computer-readable program code therein. Such propagated information signals may take many forms, including but not limited to electromagnetic signals, optical signals, or any suitable combination of the above.
  • a computer-readable signal medium may also be any computer-readable medium other than a computer-readable storage medium that can send, propagate, or transmit a program for use by or in connection with an instruction execution system, apparatus, or device .
  • Program code contained on a computer-readable medium may be transmitted using any appropriate medium, including but not limited to: wire, optical cable, RF (radio frequency), etc. etc., or any suitable combination of the above.
  • the client and server can communicate using any known or future developed network protocol such as HTTP (HyperText Transfer Protocol), and can communicate with digital information in any form or medium (e.g., communications network) interconnection.
  • HTTP HyperText Transfer Protocol
  • communications networks include local area networks (“LAN”), wide area networks (“WAN”), the Internet (e.g., the Internet), and end-to-end networks (e.g., ad hoc end-to-end networks), as well as any known or future developed network.
  • the above-mentioned computer-readable medium may be included in the above-mentioned electronic device; it may also exist independently without being assembled into the electronic device.
  • the above-mentioned computer-readable medium carries one or more programs.
  • the electronic device executes the above-mentioned one or more programs.
  • the display module is controlled not to display the virtual image and the light shielding structure is in a light transmission state
  • the display module is controlled to display a virtual image and the light-shielding structure is in a light-shielding state.
  • the electronic device when one or more of the above programs are executed by the electronic device, the electronic device may also perform other steps described in the above embodiments.
  • Computer program code for performing the operations of the present disclosure may be written in one or more programming languages, including but not limited to object-oriented programming languages—such as Java, Smalltalk, C++, and Includes conventional procedural programming languages—such as "C” or similar programming languages.
  • the program code may execute entirely on the user's computer, partly on the user's computer, as a stand-alone software package, partly on the user's computer and partly on a remote computer or entirely on the remote computer or server.
  • the remote computer can be connected to the user's computer through any kind of network, including a local area network (LAN) or a wide area network (WAN), or it can be connected to an external computer (such as an Internet service provider through Internet connection).
  • LAN local area network
  • WAN wide area network
  • Internet service provider such as an Internet service provider through Internet connection
  • each block in the flowchart or block diagram may represent a module, segment, or portion of code that contains one or more logic functions that implement the specified executable instructions.
  • the functions noted in the block may occur out of the order noted in the figures. For example, two blocks shown one after another may actually execute substantially in parallel, and they may sometimes execute in reverse order, This depends on the functionality involved.
  • each block of the block diagram and/or flowchart illustration, and combinations of blocks in the block diagram and/or flowchart illustration can be implemented by special purpose hardware-based systems that perform the specified functions or operations. , or can be implemented using a combination of specialized hardware and computer instructions.
  • the units involved in the embodiments of the present disclosure can be implemented in software or hardware. Among them, the name of a unit does not constitute a limitation on the unit itself under certain circumstances.
  • FPGAs Field Programmable Gate Arrays
  • ASICs Application Specific Integrated Circuits
  • ASSPs Application Specific Standard Products
  • SOCs Systems on Chips
  • CPLD Complex Programmable Logical device
  • a machine-readable medium may be a tangible medium that may contain or store a program for use by or in connection with an instruction execution system, apparatus, or device.
  • the machine-readable medium may be a machine-readable signal medium or a machine-readable storage medium.
  • Machine-readable media may include, but are not limited to, electronic, magnetic, optical, electromagnetic, infrared, or semiconductor systems, devices or devices, or any suitable combination of the foregoing.
  • machine-readable storage media would include one or more wire-based electrical connections, laptop disks, hard drives, random access memory (RAM), read only memory (ROM), erasable programmable read only memory (EPROM or flash memory), optical fiber, portable compact disk read-only memory (CD-ROM), optical storage device, magnetic storage device, or any suitable combination of the above.
  • RAM random access memory
  • ROM read only memory
  • EPROM or flash memory erasable programmable read only memory
  • CD-ROM portable compact disk read-only memory
  • magnetic storage device or any suitable combination of the above.
  • the present disclosure provides an electronic device, including:
  • processors one or more processors
  • Memory used to store one or more programs
  • the one or more processors are caused to implement any of the AR head-mounted display device control methods provided by this disclosure.
  • the present disclosure provides a computer-readable storage medium with a computer program stored thereon.
  • the program is executed by a processor, the AR head as described in any one provided by the present disclosure is implemented.
  • Wearable display device control method is implemented.
  • Embodiments of the present disclosure also provide a computer program product.
  • the computer program product includes a computer program or instructions. When the computer program or instructions are executed by a processor, the above-mentioned AR head-mounted display device control method is implemented.

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  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Optical Couplings Of Light Guides (AREA)

Abstract

La présente divulgation concerne un dispositif d'affichage monté sur la tête AR, un procédé de commande et un appareil de commande. Le dispositif d'affichage comprend : un module d'affichage, une lentille et un processeur, la lentille comprenant une structure de guide d'ondes optique et une structure de protection contre la lumière qui sont empilées; la structure de protection contre la lumière est située sur un côté environnemental de la structure de guide d'ondes optique à l'opposé des yeux d'un utilisateur; la structure de guide d'ondes optique est utilisée pour coupler la lumière émise par le module d'affichage aux yeux de l'utilisateur; un état de fonctionnement de la structure de protection contre la lumière comprend un état de protection contre la lumière et un état de transmission de lumière; et le processeur est électriquement connecté à la structure de protection contre la lumière et est utilisé pour commander la structure de protection contre la lumière pour commuter entre l'état de protection contre la lumière et l'état de transmission de lumière.
PCT/CN2023/113724 2022-08-18 2023-08-18 Dispositif d'affichage monté sur la tête ar, procédé de commande et appareil de commande WO2024037622A1 (fr)

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Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102540463A (zh) * 2010-09-21 2012-07-04 微软公司 用于透视头戴式显示器的不透明度滤光器
CN109445107A (zh) * 2018-12-25 2019-03-08 北京谷东网科技有限公司 可单目立体显示的增强现实显示装置及其显示方法
CN113302547A (zh) * 2019-08-13 2021-08-24 苹果公司 具有时间交错的显示系统
CN113448089A (zh) * 2020-03-28 2021-09-28 华为技术有限公司 增强现实设备及其显示方法
CN113892050A (zh) * 2019-07-04 2022-01-04 三星电子株式会社 用于显示增强现实的电子设备和方法

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102540463A (zh) * 2010-09-21 2012-07-04 微软公司 用于透视头戴式显示器的不透明度滤光器
CN109445107A (zh) * 2018-12-25 2019-03-08 北京谷东网科技有限公司 可单目立体显示的增强现实显示装置及其显示方法
CN113892050A (zh) * 2019-07-04 2022-01-04 三星电子株式会社 用于显示增强现实的电子设备和方法
CN113302547A (zh) * 2019-08-13 2021-08-24 苹果公司 具有时间交错的显示系统
CN113448089A (zh) * 2020-03-28 2021-09-28 华为技术有限公司 增强现实设备及其显示方法

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